U.S. patent application number 17/436661 was filed with the patent office on 2022-03-03 for electronic device, wireless communication method, and computer readable storage medium.
The applicant listed for this patent is SONY CORPORATION. Invention is credited to Qimei CUI, Tao CUI, Jing LIU, Xiaofeng TAO.
Application Number | 20220070865 17/436661 |
Document ID | / |
Family ID | 1000005985010 |
Filed Date | 2022-03-03 |
United States Patent
Application |
20220070865 |
Kind Code |
A1 |
CUI; Qimei ; et al. |
March 3, 2022 |
ELECTRONIC DEVICE, WIRELESS COMMUNICATION METHOD, AND COMPUTER
READABLE STORAGE MEDIUM
Abstract
An electronic device at a network side serves as a first user
equipment and a second user equipment. The electronic device
includes a processing circuit and is configured to: determine the
second user equipment to share a channel occupy time (COT) of the
first user equipment on a time domain, wherein the first user
equipment and the second user equipment send uplink information to
the electronic device in the COT of the first user equipment using
orthogonal frequency domain resources; and generate frequency
domain resource indication information of the second user equipment
to indicate a frequency domain resource for the second user
equipment.
Inventors: |
CUI; Qimei; (Beijing,
CN) ; LIU; Jing; (Beijing, CN) ; CUI; Tao;
(Beijing, CN) ; TAO; Xiaofeng; (Beijing,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SONY CORPORATION |
Minato-ku, Tokyo |
|
JP |
|
|
Family ID: |
1000005985010 |
Appl. No.: |
17/436661 |
Filed: |
March 6, 2020 |
PCT Filed: |
March 6, 2020 |
PCT NO: |
PCT/CN2020/078119 |
371 Date: |
September 7, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 74/0808 20130101;
H04W 72/0453 20130101 |
International
Class: |
H04W 72/04 20060101
H04W072/04; H04W 74/08 20060101 H04W074/08 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 14, 2019 |
CN |
201910193733.4 |
Claims
1. An electronic device for network side, the electronic device
serving a first user equipment and a second user equipment, the
electronic device comprising processing circuitry configured to:
determine that the second user equipment shares a Channel Occupy
Time (COT) of the first user equipment in time domain, wherein the
first user equipment and the second user equipment transmit uplink
information to the electronic device within the COT of the first
user equipment using orthogonal frequency domain resources; and
generate frequency domain resource indication information of the
second user equipment, to indicate frequency domain resources used
for the second user equipment.
2. The electronic device according to claim 1, wherein the first
user equipment and the second user equipment transmit uplink
information to the electronic device using orthogonal frequency
domain resources within a same BandWidth Part BWP.
3. The electronic device according to claim 2, wherein the
processing circuitry is further configured to: generate frequency
domain resource indication information of the first user equipment,
to indicate frequency domain resources used for the first user
equipment.
4. (canceled)
5. The electronic device according to claim 2, wherein the
processing circuitry is further configured to: receive uplink
information from the first user equipment; and determine, according
to frequency domain resources actually used when the first user
equipment transmits the uplink information, frequency domain
resources used for the second user equipment.
6. The electronic device according to claim 2, wherein the
processing circuitry is further configured to: generate time domain
resource indication information of the second user equipment, to
indicate time domain resources used for the second user
equipment.
7. The electronic device according to claim 6, wherein the
processing circuitry is further configured to: receive, from the
first user equipment, time domain resources within the COT of the
first user equipment, as the time domain resources used for the
second user equipment.
8. (canceled)
9. The electronic device according to claim 1, wherein the first
user equipment and the second user equipment transmit uplink
information to the electronic device using different BandWidth
Parts BWPs.
10. The electronic device according to claim 9, wherein the
processing circuitry is further configured to: receive uplink
information from the first user equipment; and determine, according
to a BWP actually used when the first user equipment transmits the
uplink information, a BWP used for the second user equipment.
11. (canceled)
12. The electronic device according to claim 9, wherein the
processing circuitry is further configured to: receive channel
detection results of a plurality of BWPs from the first user
equipment; and determine a BWP used for the second user equipment
according to the channel detection results of the plurality of
BWPs.
13. (canceled)
14. The electronic device according to claim 12, wherein the
processing circuitry is further configured to: generate time domain
resource indication information of the second user equipment, to
indicate time domain resources used for the second user
equipment.
15. The electronic device according to claim 14, wherein the
processing circuitry is further configured to: receive, from the
first user equipment, time domain resources within the COT of the
first user equipment, as the time domain resources used for the
second user equipment.
16.-18. (canceled)
19. An electronic device for a user side, comprising processing
circuitry configured to: determine that other user equipment shares
a Channel Occupy Time (COT) of the electronic device in time
domain, wherein the other user equipment and the electronic device
transmit uplink information to a network side device within the COT
of the electronic device using orthogonal frequency domain
resources; and generate time domain resource indication information
of the other user equipment, to indicate time domain resources used
for the other user equipment.
20. The electronic device according to claim 19, wherein the
processing circuitry is further configured to: transmit the time
domain resource indication information of the other user equipment,
to the other user equipment or the network side device.
21. The electronic device according to claim 19, wherein the
electronic device and the other user equipment transmit uplink
information to the network side device using orthogonal frequency
domain resources within a same BandWidth Part BWP.
22. The electronic device according to claim 21, wherein the
processing circuitry is further configured to: receive frequency
domain resource indication information of the electronic device
from the network side device; and determine frequency domain
resources used when the electronic device transmits the uplink
information according to the frequency domain resource indication
information.
23. (canceled)
24. The electronic device according to claim 21, wherein the
processing circuitry is further configured to: transmit frequency
domain resources used when the electronic device transmits the
uplink information to the other user equipment, to cause the other
user equipment to transmit the uplink information by selecting
frequency domain resources orthogonal to the frequency domain
resources used for the electronic device.
25. The electronic device according to claim 19, wherein the
electronic device and the other user equipment transmit uplink
information to the network side device using different BandWidth
Parts BWPs.
26. The electronic device according to claim 25, wherein the
processing circuitry is further configured to: perform a channel
detection process on a plurality of BWPs; and transmit uplink
information to the network side device using a BWP that is detected
to be idle in the channel detection process.
27. The electronic device according to claim 26, wherein the
processing circuitry is further configured to: transmit channel
detection results of the plurality of BWPs to the network side
device, to cause the network side device to determine at least one
of the BWPs that are detected to be idle by the electronic device,
as a BWP used for the other user equipment.
28.-32. (canceled)
33. A wireless communication method performed by an electronic
device for a network side, the electronic device serving a first
user equipment and a second user equipment, and the wireless
communication method comprising: determining that the second user
equipment shares a Channel Occupy Time (COT) of the first user
equipment in time domain, wherein the first user equipment and the
second user equipment transmit uplink information to the electronic
device within the COT of the first user equipment using orthogonal
frequency domain resources; and generating frequency domain
resource indication information of the second user equipment, to
indicate frequency domain resources used for the second user
equipment.
34.-65. (canceled)
Description
[0001] This application claims the priority to Chinese Patent
Application No. 201910193733.4 titled "ELECTRONIC DEVICE, WIRELESS
COMMUNICATION METHOD, AND COMPUTER READABLE STORAGE MEDIUM", filed
on Mar. 14, 2019 with the China National Intellectual Property
Administration (CNIPA), which is incorporated herein by reference
in its entirety.
FIELD
[0002] Embodiments of the present disclosure generally relate to
the field of wireless communications, and in particular to an
electronic device, a wireless communication method, and a computer
readable storage medium. Specially, the present disclosure relates
to an electronic device for a network side, an electronic device
for a user side, a wireless communication method performed by an
electronic device for a network side, a wireless communication
method performed by an electronic device for a user side, and a
computer readable storage medium.
BACKGROUND
[0003] In a process of using an unlicensed frequency band for
communication, when a device that is to perform communication
accesses to a channel, channel occupancy time for data transmission
should be less than Max Channel Occupancy Time (MCOT). In a
cellular cell, for example, a network side device of a base station
may serve multiple user equipments. In a case of transmitting
uplink information, each user equipment is required to perform a
channel detection process, to transmit information to the network
side device on an idle channel. In this case, time for the user
equipment to access to the unlicensed frequency band is greatly
increased.
[0004] In addition, the network side device configures multiple
bandwidth parts (BWPs) for each user equipment in frequency domain,
and activates one or more of the multiple configured BWPs, so that
the user equipment transmits uplink information by selecting one or
more of the BWPs that are in an activated state. That is, the user
may selects only one of multiple BWPs configured for the user
equipment. In this case, frequency domain resources are not fully
utilized, resulting in low resource utilization of the system.
[0005] It is assumed that the user equipment transmits uplink
information to the network side device using one BWP that are in
the activated state. For some services sensitive to delay, if the
user equipment receives no feedback information from the network
side device, the user equipment is required to be switched to
another BWP that is in the activated state to retransmit the uplink
information to the network side device. In this case, the network
side device is required to schedule, and the switching process is
complex and time-consuming, resulting in not meeting low delay
requirements of the services.
[0006] Therefore, it is required to propose a technical solution to
solve at least one of the above technical problems.
SUMMARY
[0007] This section provides a general summary of the present
disclosure, rather than a comprehensive disclosure of full scope or
all features of the present disclosure.
[0008] An electronic device, a wireless communication method, and a
computer readable storage medium are provided according to the
present disclosure, to provide an enhanced mechanism for using a
BWP, so as to improve resource utilization of the system, reduce
time for a user equipment to access to an unlicensed frequency
band, and reduce delay of information.
[0009] An electronic device for a network side is provided
according to one aspect of the present disclosure. The electronic
device serves a first user equipment and a second user equipment.
The electronic device includes processing circuitry. The processing
circuitry is configured to: determine that the second user
equipment shares a Channel Occupy Time (COT) of the first user
equipment in time domain, where the first user equipment and the
second user equipment transmit uplink information to the electronic
device within the COT of the first user equipment using orthogonal
frequency domain resources; and generate frequency domain resource
indication information of the second user equipment, to indicate
frequency domain resources used for the second user equipment.
[0010] An electronic device for a user side is provided according
to another aspect of the present disclosure. The electronic device
includes processing circuitry. The processing circuitry is
configured to: determine that other user equipment shares a Channel
Occupy Time (COT) of the electronic device in time domain, where
the other user equipment and the electronic device transmit uplink
information to a network side device within the COT of the
electronic device using orthogonal frequency domain resources; and
generate time domain resource indication information of the other
user equipment, to indicate time domain resources used for the
other user equipment.
[0011] A wireless communication method performed by an electronic
device for a network side is provided according to another aspect
of the present disclosure. The electronic device serves a first
user equipment and a second user equipment. The wireless
communication method includes: determining that the second user
equipment shares a Channel Occupy Time (COT) of the first user
equipment in time domain, where the first user equipment and the
second user equipment transmit uplink information to the electronic
device within the COT of the first user equipment using orthogonal
frequency domain resources; and generating frequency domain
resource indication information of the second user equipment, to
indicate frequency domain resources used for the second user
equipment.
[0012] A wireless communication method performed by an electronic
device for a user side is provided according to another aspect of
the present disclosure. The wireless communication method includes:
determining that other user equipment shares a Channel Occupy Time
(COT) of the electronic device in time domain, where the other user
equipment and the electronic device transmit uplink information to
a network side device within the COT of the electronic device using
orthogonal frequency domain resources; and generating time domain
resource indication information of the other user equipment, to
indicate time domain resources used for the other user
equipment.
[0013] A computer readable storage medium is provided according to
another aspect of the present disclosure. The computer readable
storage medium includes an executable computer instruction that,
when executed by a computer, causes the computer to perform the
wireless communication method according to the present
disclosure.
[0014] With the electronic device, the wireless communication
method and the computer readable storage medium according to the
present disclosure, multiple user equipments can share a COT of one
of the multiple user equipments. That is, the multiple user
equipments transmits uplink information within a COT of one of the
multiple user equipments using orthogonal frequency domain
resources. In this way, other user equipment can access to the
unlicensed frequency band without performing the channel detection
process, thereby greatly reducing time for the other user equipment
to access to the unlicensed frequency band. Furthermore, with the
electronic device, the wireless communication method and the
computer readable storage medium according to the present
disclosure, unused BWPs of one user equipment can be used by other
user equipment, thereby greatly improving the resource utilization
of the system. In addition, the network side device can transmit
feedback information to the user equipment using multiple BWPs,
thereby improving probability that the feedback information is
successfully received. Furthermore, in the case that no feedback
information is received, the user equipment can be automatically
switched to other BWP that is in the activated state without
assistance of the network side device, so that the switching
process of the BWPs is simplified, thereby meeting the delay
requirements of some services sensitive to delay. In summary, an
enhanced mechanism for using a BWP is provided according to the
present disclosure, thereby improving the resource utilization of
the system, reducing the time for the user equipment to access to
the unlicensed frequency band, and reducing the delay of
information.
[0015] Further applicability areas are become apparent from the
description provided herein. The description and specific examples
in the summary are only schematic and are not intended to limit the
scope of the present disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Drawings described herein are only schematic for described
embodiments, rather than all embodiments, and are not intended to
limit the scope of the present disclosure. In the drawing:
[0017] FIG. 1 is a schematic diagram showing an application
scenario according to an embodiment of the present disclosure;
[0018] FIG. 2 is a block diagram showing a configuration example of
an electronic device for a network side according to an embodiment
of the present disclosure;
[0019] FIG. 3 is a schematic diagram showing a case that multiple
user equipments use orthogonal frequency domain resources within a
same BWP according to an embodiment of the present disclosure;
[0020] FIG. 4 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to an embodiment of the present disclosure;
[0021] FIG. 5 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure;
[0022] FIG. 6 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure;
[0023] FIG. 7 is a signaling flow chart showing a process that
multiple user equipments share a BWP according to an embodiment of
the present disclosure;
[0024] FIG. 8 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure;
[0025] FIG. 9 is a schematic diagram showing a process of
transmitting feedback information using multiple BWPs according to
an embodiment of the present disclosure;
[0026] FIG. 10 is a block diagram showing a configuration example
of an electronic device for a user side according to an embodiment
of the present disclosure;
[0027] FIG. 11 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure;
[0028] FIG. 12 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure;
[0029] FIG. 13 is a flow chart showing a wireless communication
method performed by an electronic device for a network side
according to an embodiment of the present disclosure;
[0030] FIG. 14 is a flow chart showing a wireless communication
method performed by an electronic device for a user side according
to an embodiment of the present disclosure;
[0031] FIG. 15 is a block diagram showing a first schematic
configuration example of an evolution Node B (eNB);
[0032] FIG. 16 is a block diagram showing a second schematic
configuration example of the eNB;
[0033] FIG. 17 is a block diagram showing a schematic configuration
example of a smart phone; and
[0034] FIG. 18 is a block diagram showing a schematic configuration
example of a car navigation apparatus.
[0035] While the present disclosure is susceptible to various
modifications and alternative forms, specific embodiments thereof
have been shown by way of example in the drawings and are herein
described in detail. It should be understood that the description
for the specific embodiments herein is not intended to limit the
present disclosure to the disclosed specific forms, but on the
contrary, the present disclosure is intended to encompass all
modifications, equivalents and alternatives that fall within the
spirit and scope of the present disclosure. It should be noted
that, reference numerals indicate parts corresponding to the
reference numerals throughout the drawings.
DETAILED DESCRIPTION OF EMBODIMENTS
[0036] Examples of the present disclosure are described more fully
with reference to the drawings. The following description is merely
exemplary rather than being intended to limit the present
disclosure and applications or uses of the present disclosure.
[0037] Exemplary embodiments are provided to make the present
disclosure be exhaustive and fully convey the scope of the present
disclosure to those skilled in the art. Various specific details
such as specific parts, devices and methods are set forth to
provide thorough understanding for the embodiments of the present
disclosure. It is apparent to those skilled in the art that the
exemplary embodiments may be embodied in many different forms
without the specific details, and the specific details are not
interpreted as a limit for the scope of the present disclosure. In
some exemplary embodiments, well-known processes, well-known
structures and well-known technology are not described in
detail.
[0038] Hereinafter, the present disclosure is described according
to the following sequence. [0039] 1. Description of Scenarios.
[0040] 2. Configuration Examples of Electronic Device for Network
Side. [0041] 3. Configuration Examples of Electronic Device for
User Side. [0042] 4. Method Embodiments. [0043] 5. Application
Examples.
[0044] [1. Description of Scenarios]
[0045] FIG. 1 is a schematic diagram showing an application
scenario according to an embodiment of the present disclosure. As
shown in FIG. 1, a wireless communication system includes a gNB
(that is, a base station apparatus in a 5G communication system)
and two User Equipments (UEs), that is, UE1 and UE2. The gNB
provides services for the UE1 and the UE2, that is, the UE1 and the
UE2 are within coverage of the gNB. The UE1 and the UE2 may
transmit uplink information to the gNB using a cellular link. The
gNB may transmit downlink information to the UE1 and the UE2 using
the cellular link. Both the uplink information and the downlink
information may include data information and control information.
FIG. 1 only shows a case that one gNB serves two UEs. The numbers
of the gNB and the UE are not limited in the present disclosure. In
addition, although not shown in FIG. 1, the UE1 and the UE2 may
communicate with each other via a sidelink (SL).
[0046] For such scenario, an electronic device in a wireless
communication system, a wireless communication method performed by
an electronic device in a wireless communication system, and a
computer readable storage medium are provided according to the
present disclosure, to improve resource utilization of the system,
reduce time for user equipment to access to an unlicensed frequency
band, and reduce delay of information.
[0047] It should be noted that the present disclosure relates to
communication on the unlicensed frequency band. That is, before
transmitting uplink information to, for example, a network side
device of the gNB, the UE1 is required to perform a channel
detection process to detect whether the channel is idle, to
transmit uplink information on a channel that is detected to be
idle. Certainly, after the UE1 is accessed to the channel, channel
occupancy time for data transmission should be less than MCOT. The
channel detection process herein may be, for example, a listen
before talk (LBT) process. Furthermore, the LBT process may include
a LBT process without random backoff, a LBT process with random
backoff and a variable-sized contention window, and a LBT process
with random backoff and a fixed-sized contention window. The
specific mode of the channel detection process is not limited in
the present disclosure.
[0048] In addition, according to an embodiment of the present
disclosure, the network side device may configure BWPs for the user
equipment and set an activation state of each of the configured
BWPs. Next, the user equipment may transmit uplink information by
selecting one or more of the BWPs that are in an activated state.
In other words, the user equipment may perform the channel
detection process on the multiple BWPs that are in the activated
state, so as to transmit uplink information by selecting a BWP that
is detected to be idle in the channel detection process. Generally,
configuration and use of the BWP have the following options: [0049]
option 1a: configuring multiple BWPs, activating multiple BWPs, and
transmitting uplink information on one or more of the BWPs; [0050]
option 1b: configuring multiple BWPs, activating multiple BWPs, and
transmitting uplink information on one of the BWP; [0051] option 2:
configuring multiple BWPs, activating one of the multiple BWPs, and
transmitting uplink information on the BWP; and [0052] option 3:
configuring multiple BWPs, activating one of the multiple BWPs, and
transmitting uplink information on all or part of the BWP.
[0053] The embodiments of the present disclosure support any one of
the above four options.
[0054] The network side device according to the present disclosure
may be implemented as any type of transmit and receive port (TRP).
The TRP may have a function of transmitting and receiving. For
example, the TRP may receive information from a user equipment and
a base station apparatus, and may further transmit information to
the user equipment and the base station apparatus. In an
embodiment, the TRP may provide services to the user equipment, and
may also be controlled by the base station apparatus. In other
words, the base station apparatus provides services to the user
equipment via the TRP. In addition, the network side device
described in the present disclosure may also be the base station
apparatus, for example, the eNB or the gNB (a base station in a 5th
generation communication system).
[0055] The user equipment according to the present disclosure may
be implemented as mobile terminals (such as a smart phone, a tablet
personal computer (PC), a notebook PC, a portable game terminal, a
portable/dongle mobile router and a digital camera) or a vehicle
terminal (such as a car navigation apparatus). The user equipment
may be implemented as a terminal (also known as machine type
communication (MTC) terminal) that performs machine to machine
(M2M) communication. In addition, the user equipment may be a
wireless communication module (such as an integrated circuit module
including one chip) installed on each of the above terminals.
[0056] [2. Configuration Examples of Electronic Device for Network
Side]
[0057] FIG. 2 is a block diagram showing a configuration example of
an electronic device 200 according to an embodiment of the present
disclosure. The electronic device 200 may serve as a network side
device in a wireless communication system, specifically, serving as
a base station apparatus or a TRP in the wireless communication
system. According to the embodiment of the present disclosure, the
electronic device 200 serves at least a first user equipment and a
second user equipment. Here, both the first user equipment and the
second user equipment may be user equipments within service scope
of the electronic device 200. "The first" and "the second" are not
intended to distinguish, so the first user equipment and the second
user equipment may have a same structure and function.
[0058] As shown in FIG. 2, the electronic device 200 may include a
determination unit 210, a configuration unit 220 and a generation
unit 230.
[0059] Here, each unit of the electronic device 200 may be included
in processing circuitry. It should be noted that, the electronic
device 200 may include one processing circuitry or multiple
processing circuitries. Furthermore, the processing circuitry may
include various discrete functional units to perform various
different functions and/or operations. It should be noted that
these functional units may be physical entities or logical
entities, and units with different names may be implemented by a
same physical entity.
[0060] According to an embodiment of the present disclosure, the
determination unit 210 is configured to determine that the second
user equipment shares a COT of the first user equipment in time
domain. That is, the first user equipment acquires a right to use a
specific unlicensed frequency band by, for example, performing a
channel detection process. Channel occupation time (COT) of the
first user equipment for the specific unlicensed frequency band
cannot exceed max channel occupation time (MCOT). Here, the second
user equipment sharing the COT of the first user equipment refers
to that the first user equipment and the second user equipment
transmit uplink information to the electronic device 200 within the
COT of the first user equipment using orthogonal frequency domain
resources.
[0061] According to an embodiment of the present disclosure, the
configuration unit 220 may configure frequency domain resources for
the second user equipment to transmit uplink information.
[0062] According to an embodiment of the present disclosure, the
generation unit 230 may generate frequency domain resource
indication information of the second user equipment, to indicate
the frequency domain resources used for the second user
equipment.
[0063] It can be seen that according to the embodiment of the
present disclosure, the second user equipment may share the COT of
the first user equipment. That is, the first user equipment and the
second user equipment may transmit uplink information within the
COT of the first user equipment using orthogonal frequency domain
resources. In this way, the second user equipment may access to the
unlicensed frequency band without performing the channel detection
process, thereby greatly reducing the time for the second user
equipment to access to the unlicensed frequency band. In addition,
here, the second user equipment may be any user equipment within
the coverage of the electronic device 200, that is, the second user
equipment sharing the COT of the first user equipment may be one
user equipment or multiple user equipments. That is, according to
the embodiment of the present disclosure, multiple user equipments
may share a COT of one of the user equipments, so that the multiple
user equipments may transmit uplink information within the COT of
one of the user equipments using mutually orthogonal frequency
domain resources. In this way, multiple second user equipments can
access to the unlicensed frequency band without performing the
channel detection process, thereby greatly reducing the time for
the second user equipment to access to the unlicensed frequency
band.
[0064] According to an embodiment of the present disclosure, as
shown in FIG. 2, the electronic device 200 may further include a
communication unit 240. The communication unit 240 is configured to
transmit information to devices other than the electronic device
200 and/or receive information from devices other than the
electronic device 200. Here, the electronic device 200 may transmit
frequency domain resource indication information of the second user
equipment to the second user equipment via the communication unit
240.
[0065] According to an embodiment of the present disclosure, the
first user equipment and the second user equipment may transmit
uplink information to the electronic device 200 using orthogonal
frequency domain resources within a same BWP.
[0066] According to an embodiment of the present disclosure, the
first user equipment may determine that a BWP of an unlicensed
frequency band is idle by, for example, performing the channel
detection process, to transmit uplink information using the BWP.
Here, the BWP may be a BWP of the first user equipment that is in
the activated state and a BWP of the second user equipment that is
in the activated state. As described above, multiple BWPs may be
configured for one user equipment. One or more of the multiple BWPs
may be in the activated state. The user equipment may transmit
uplink information using the BWP that is in the activated state.
According to an embodiment of the present disclosure, in a case
that the first user equipment and the second user equipment have at
least one same BWP that is in the activated state, the first user
equipment and the second user equipment may transmit uplink
information to the electronic device 200 using orthogonal frequency
domain resources within the BWP.
[0067] According to an embodiment of the present disclosure, the
determination unit 210 may determine a user equipment capable of
sharing a COT with the first user equipment. That is, after
determining a BWP to be used by the first user equipment, the
determination unit 210 may determine other user equipment of which
the BWP is in the activated state, to determine such user equipment
as the user equipment capable of sharing the COT with the first
user equipment. For example, assuming that the BWP to be used by
the first user equipment is BWP1, the BWP1, BWP2, BWP3 and BWP4 are
configured for a user equipment A within the service scope of the
electronic device 200, and BWPs that are in the activated state are
the BWP1 and the BWP2, the determination unit 210 may determine
that the user equipment A as the second user equipment capable of
sharing the COT with the first user equipment, because the BWP1 is
a BWP of the user equipment A that is in the activated state. For
another example, assuming that the BWP to be used by the first user
equipment is the BWP1, the BWP1, the BWP2, the BWP3 and the BWP4
are provided for a user equipment B within the service scope of the
electronic device 200, and BWPs that are in the activated state are
the BWP3 and the BWP4, the determination unit 210 may determine
that the user equipment B cannot share the COT with the first user
equipment, because the BWP1 of the user equipment B is not in the
activated state.
[0068] According to an embodiment of the present disclosure, the
configuration unit 220 may divide the BWP into multiple sub-bands
in frequency domain, and spans of the sub-bands in frequency domain
may be even or uneven. In a non-limiting embodiment, the BWP may be
evenly divided into 10 sub-bands in frequency domain, and each of
the sub-bands in frequency domain occupies a width of 10 physical
resource blocks (PRB) in frequency domain. Furthermore, the
multiple sub-bands may be grouped into multiple groups, and each
group includes multiple sub-bands arranged continuously.
Furthermore, the first user equipment may use a first sub-band in
each group, and the second user equipment may use a second sub-band
in each group. In this way, the first user equipment and the second
user equipment may successively use multiple sub-bands within the
BWP in an "interleaved" manner. In addition, according to an
embodiment of the present disclosure, in a case that a third user
equipment also shares the COT of the first user equipment, the
third user equipment may use a third sub-band in each group. That
is, all the user equipments sharing the COT of the first user
equipment may successively use multiple sub-bands within the BWP in
the "interleaved" way, that is, all the user equipments sharing the
COT of the first user equipment use mutually orthogonal frequency
domain resources.
[0069] FIG. 3 is a schematic diagram showing a case that multiple
user equipments use orthogonal frequency domain resources within a
same BWP according to an embodiment of the present disclosure. As
shown in FIG. 3, a horizontal axis represents time, a vertical axis
represents frequency domain, a width of a rectangle in FIG. 3 on
the horizontal axis represents a length of the MCOT of the first
user equipment, and a length of the rectangle on the vertical axis
represents a span of one BWP in frequency domain. It is assumed
that a BWP shown in FIG. 3 is a BWP of the first user equipment
that is in the activated state and is a BWP of the second user
equipment that is in the activated state. As shown in FIG. 3, the
BWP is divided into multiple sub-bands in frequency domain. A
sub-band indicated by an oblique line inclining to left is
represented by an index 0, and a sub-band indicated by an oblique
line inclining to right is represented by an index 1. In addition,
FIG. 3 shows a case that multiple sub-bands are grouped into three
groups. The first sub-band in each group is represented by the
index 0, and the second sub-band in each group is represented by
the index 1. Certainly, although not shown, the BWP may further
include sub-bands represented by indexes 2, 3 and the like.
[0070] According to an embodiment of the present disclosure, the
configuration unit 220 may configure frequency domain resources for
the second user equipment to transmit uplink information. For
example, the configuration unit 220 may configure resources for the
second user equipment, and the resources are within a BWP used by
the first user equipment and are orthogonal to resources used by
the first user equipment in frequency domain. For example, as shown
in FIG. 3, assuming that the first user equipment uses the sub-band
represented by the index 0, the configuration unit 220 may
configure the sub-band represented by the index 1 for the second
user equipment.
[0071] According to an embodiment of the present disclosure, the
configuration unit 220 may further configure frequency domain
resources for the first user equipment to transmit uplink
information. Furthermore, the generation unit 230 may further
generate frequency domain resource indication information of the
first user equipment, to indicate the frequency domain resources
used for the first user equipment. Furthermore, the electronic
device 200 may transmit the frequency domain resource indication
information of the first user equipment to the first user equipment
via the communication unit 240.
[0072] Here, the frequency domain resource indication information
generated by the generation unit 230 may indicate indexes of the
frequency domain resources, for example, the index 0 or the index 1
in FIG. 3. The indexes of the frequency domain resources have a
mapping relationship with frequency domain resources within the
BWP, that is, location of the frequency domain resources within the
BWP may be determined in frequency domain according to the indexes
of the frequency domain resources. That is, the frequency domain
resource indication information of the second user equipment
indicates an index used for frequency domain resources of the
second user equipment, and the frequency domain resource indication
information of the first user equipment indicates an index used for
frequency domain resources of the first user equipment.
[0073] According to an embodiment of the present disclosure, after
the determination unit 210 determines the second user equipment
sharing the COT of the first user equipment, the configuration unit
220 may configure frequency domain resources for the first user
equipment and the second user equipment to transmit uplink
information. Specially, the configuration unit 220 may configure
orthogonal frequency domain resources within a same BWP for the
first user equipment and the second user equipment, for example,
frequency domain resources represented by different indexes within
a same BWP. Furthermore, assuming that the number of the second
user equipment sharing the COT of the first user equipment is more
than one, the configuration unit 220 may configure mutually
orthogonal frequency domain resources for the first user equipment
and the multiple second user equipments, that is, the index of the
frequency domain resource configured for the first user equipment
is different from the indexes of the frequency domain resources
configured for the multiple second user equipment.
[0074] According to an embodiment of the present disclosure, after
the determination unit 210 determines the second user equipment
sharing the COT of the first user equipment, the configuration unit
220 may first configure the frequency domain resource for the first
user equipment to transmit uplink information. Specifically, the
configuration unit 220 may configure frequency domain resources for
the first user equipment within a BWP that the first user equipment
expects to use, for example, frequency domain resources represented
by an index within the BWP. Furthermore, the electronic device 200
may receive uplink information from the first user equipment via
the communication unit 240, and may determine the frequency domain
resources for the first user equipment to transmit uplink
information. Furthermore, the configuration unit 220 may determine
frequency domain resources used for the second user equipment
according to frequency domain resources actually used when the
first user equipment transmits the uplink information. That is, the
configuration unit 220 may determine that the frequency domain
resources used for the second user equipment are orthogonal to the
frequency domain resources actually used when the first user
equipment transmits the uplink information. Similarly, assuming
that the number of the second user equipment sharing the COT of the
first user equipment is more than one, the configuration unit 220
may configure the frequency domain resources for the multiple
second user equipments, so that the frequency domain resources of
each second user equipment are orthogonal to the frequency domain
resources actually used when the first user equipment transmits the
uplink information, and the frequency domain resources of the
second user equipments are orthogonal to each other.
[0075] As described above, according to an embodiment of the
present disclosure, after the configuration unit 220 configures the
frequency domain resources for the first user equipment, the first
user equipment may transmit uplink information using the frequency
domain resources configured by the configuration unit 220, or may
transmit uplink information not using the frequency domain
resources configured by the configuration unit 220. Therefore, the
configuration unit 220 may determine the frequency domain resources
of the second user equipment according to the frequency domain
resources actually used when the first user equipment completes
transmitting of the uplink information, so as to fully ensure that
the frequency domain resources of the first user equipment are
orthogonal to the frequency domain resources of the second user
equipment.
[0076] According to an embodiment of the present disclosure, after
acquiring the frequency domain resource indication information from
the electronic device 200, the second user equipment may determine
the frequency domain resources used when the second user equipment
transmits uplink information according to the frequency domain
resource indication information. Furthermore, the second user
equipment is required to acquire time domain resources for
transmitting uplink information before transmitting the uplink
information. Here, since the second user equipment shares the COT
of the first user equipment, the time domain resources used when
the second user equipment transmits the uplink information are
actually time domain resources within the COT of the first user
equipment.
[0077] According to an embodiment of the present disclosure, the
second user equipment may acquire time domain resource indication
information from the first user equipment to indicate time domain
resources used for the second user equipment. Here, the first user
equipment may use the time domain resources within the COT of the
first user equipment as the time domain resources used for the
second user equipment. According to an embodiment of the present
disclosure, the first user equipment may broadcast such time domain
resource indication information.
[0078] Furthermore, according to an embodiment of the present
disclosure, the configuration unit 220 may configure the time
domain resources for the second user equipment to transmit uplink
information. The generation unit 230 may generate the time domain
resource indication information of the second user equipment, to
indicate the time domain resources used for the second user
equipment. Furthermore, the electronic device 200 may transmit the
time domain resource indication information to the second user
equipment via the communication unit 240. Here, the electronic
device 200 may receive, from the first user equipment, the time
domain resources within the COT of the first user equipment via the
communication unit 240, so that the configuration unit 220 may use
the time domain resources within the COT of the first user
equipment as the time domain resources used for the second user
equipment. That is, the second user equipment may acquire the time
domain resource indication information from the electronic device
200, to indicate the time domain resources used for the second user
equipment.
[0079] Furthermore, according to an embodiment of the present
disclosure, the electronic device 200 may receive the time domain
resources within the COT of the first user equipment when receiving
the uplink information from the first user equipment, that is, the
first user equipment may simultaneously transmit the uplink
information and the time domain resources within the COT. In an
embodiment, the first user equipment may further respectively
transmit the uplink information and the time domain resources
within the COT. In addition, in a case that the second user
equipment receives the time domain resource indication information
from the electronic device 200, the electronic device 200 may
simultaneously transmit the time domain resource indication
information and the frequency domain resource indication
information, or may respectively transmit the time domain resource
indication information and the frequency domain resource indication
information.
[0080] According to an embodiment of the present disclosure, the
time domain resources within the COT of the first user equipment
may include, for example, starting time and ending time of the COT
of the first user equipment. In other words, after acquiring the
time domain resources within the COT of the first user equipment,
the second user equipment may determine location of transmitting
the uplink information to the electronic device 200 in time domain.
After acquiring the frequency domain resource indication
information, the second user equipment may determine location of
transmitting the uplink information to the electronic device 200 in
frequency domain. Therefore, the second user equipment may transmit
uplink information to the electronic device 200 within the COT of
the first user equipment using frequency domain resources
orthogonal to the frequency domain resources of the first user
equipment.
[0081] FIGS. 4 and 5 are signaling flow charts showing processes
that multiple user equipments share a COT of one user equipment
according to embodiments of the present disclosure. In FIGS. 4 and
5, UE1 represents the first user equipment, UE2 represents the
second user equipment, and a gNB represents the electronic device
200. That is, the gNB provides services for the UE1 and the UE2,
the UE1 acquires a right to use the unlicensed frequency band (such
as a specific BWP) by performing a channel detection process.
[0082] In FIG. 4, in step S401, the gNB determines that the UE1 and
the UE2 may share a COT of the UE1. Next, in step S402, the gNB
configures orthogonal frequency domain resources within a BWP for
the UE1 and the UE2. For example, the gNB configures frequency
domain resources represented by the index 0 in FIG. 3 for the UE1
and frequency domain resources represented by the index 1 in FIG. 3
for the UE2. Next, in step S403, the gNB transmits to the UE1,
frequency domain resource indication information, for example, the
index 0. Next, in step S404, the gNB transmits to the UE2,
frequency domain resource indication information, for example, the
index 1. Next, in step S405, the UE1 transmits time domain
resources within the COT of the UE1 to the UE2, for example, by
broadcasting. Next, in step S406, the UE1 transmits uplink
information to the gNB within the COT of the UE1 using the
frequency domain resources within the BWP configured by the gNB.
Next, in step S407, the UE2 transmits uplink information to the gNB
within the COT of UE1 using the frequency domain resources within
the same BWP configured by the gNB. Therefore, the UE1 and the UE2
share the COT of the UE1 and transmit the uplink information to the
gNB using the orthogonal frequency domain resources within the same
BWP. It should be noted that in FIG. 4, an order of step S403 and
step S404 may be interchanged, and an order of step S406 and step
S407 may be interchanged. In addition, step S406 may be performed
before step S404, and step S405 may be performed before step
S404.
[0083] In FIG. 5, in step S501, the gNB determines that the UE1 and
the UE2 may share the COT of the UE1. Next, in step S502, the gNB
configures the frequency domain resources for the UE1. For example,
the gNB configures frequency domain resources represented by the
index 0 in FIG. 3 for the UE1. Next, in step S503, the gNB
transmits to the UE1, the frequency domain resource indication
information, for example, the index 0. Next, in step S504, the UE1
transmits uplink information, to the gNB within the COT of the UE1,
using the frequency domain resources within the BWP configured by
the gNB. In addition, the UE1 may further transmit the time domain
resources to the gNB within the COT of the UE1. Next, in step S505,
the gNB configures frequency domain resources for the UE2 according
to frequency domain resources actually used when the UE1 transmits
the uplink information. For example, assuming that the UE1 actually
uses the frequency domain resources represented by the index 0, the
gNB may configure for the UE2, frequency domain resources
represented by the index 1 shown in FIG. 3. Next, in step S506, the
gNB transmits to the UE2, the frequency domain resource indication
information, for example, the index 1. In addition, the gNB further
transmits to the UE2, the time domain resource indication
information, for example, the time domain resources within the COT
of the UE1. Next, in step S507, the UE2 transmits uplink
information to the gNB within the COT of the UE1 using the
frequency domain resources within the BWP configured by the gNB.
Therefore, the UE1 and the UE2 share the COT of the UE1 and
transmit the uplink information to the gNB using the orthogonal
frequency domain resources within the same BWP.
[0084] As described above, the first user equipment and the second
user equipment may transmit uplink information to the electronic
device 200 within the COT of the first user equipment using the
orthogonal frequency domain resources within the same BWP.
According to an embodiment of the present disclosure, the first
user equipment and the second user equipment may transmit the
uplink information to the electronic device 200 using different
BWPs, which is described in detail below.
[0085] According to an embodiment of the present disclosure, the
electronic device 200 may receive uplink information from the first
user equipment via the communication unit 240. The configuration
unit 220 may determine a BWP used for the second user equipment
according to a BWP actually used when the first user equipment
transmits the uplink information. Here, the configuration unit 220
may configure the BWP for the second user equipment, so that the
BWP of the second user equipment is orthogonal to the BWP actually
used for the first user equipment.
[0086] According to an embodiment of the present disclosure, the
configuration unit 220 may determine at least one of multiple BWPs
configured for the first user equipment other than the BWP actually
used for the first user equipment, as the BWP used for the second
user equipment.
[0087] For example, the electronic device 200 configures BWP1,
BWP2, BWP3 and BWP4 for the first user equipment, and the four BWPs
are all in the activated state. The first user equipment transmits
uplink information to the electronic device 200 using the BWP1. The
configuration unit 220 may determine at least one of the BWP2, the
BWP3 and the BWP4 as the BWP used for the second user equipment.
For example, the configuration unit 220 may configure the BWP2,
BWP5, BWP6 and BWP7 for the second user equipment, or may configure
the BWP2, BWP3, the BWP5 and the BWP6 for the second user
equipment, or may configure the BWP2, the BWP3, the BWP4 and the
BWP5 for the second user equipment.
[0088] According to an embodiment of the present disclosure, after
acquiring multiple BWPs configured for the second user equipment,
the second user equipment may perform the channel detection process
on the multiple BWPs, to transmit uplink information within the COT
of the first user equipment using a BWP that is detected to be idle
in the channel detection process.
[0089] As described above, the electronic device 200 may configure
multiple BWPs for the first user equipment, and activate one or
more of the multiple BWPs. The first user equipment may transmit
the uplink information using one or more of the BWPs that are in
the activated state. It can be seen that, the number of BWPs
configured for the first user equipment is more than one, but the
first user equipment may use only a part of the BWPs. In this way,
the frequency domain resources are not fully utilized, resulting in
low resource utilization of the system. According to the
embodiments of the present disclosure, the electronic device 200
may allocate unused BWPs in the BWPs configured for the first user
equipment to the second user equipment to improve the resource
utilization. Here, the second user equipment may be, for example, a
user equipment that just accesses to the electronic device 200.
That is, the electronic device 200 does not configure the BWP for
the second user equipment. In addition, in the case that the number
of the unused BWPs of the first user equipment is more than one,
the electronic device 200 may configure the multiple unused BWPs to
one user equipment or multiple user equipments. For example, the
electronic device 200 configures the BWP1, the BWP2, the BWP3 and
the BWP4 for the first user equipment, and the four BWPs are all in
the activated state. The first user equipment transmits uplink
information to the electronic device 200 using the BWP1. The
electronic device 200 may allocate the BWP2 to the second user
equipment, may allocate the BWP3 and the BWP4 to the third user
equipment, or may allocate the BWP2, the BWP3 and the BWP4 to the
second user equipment.
[0090] FIG. 6 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure. In FIG.
6, UE1 represents the first user equipment, UE2 represents the
second user equipment, and a gNB represents the electronic device
200. That is, the gNB provides services for the UE1 and the UE2,
and the UE1 acquires a right to use the unlicensed frequency band
(such as the BWP1) by performing the channel detection process. In
step S601, the gNB configures multiple BWPs for the UE1, including
the BWP1, the BWP2, the BWP3 and the BWP4. Next, in step S602, the
UE1 transmits uplink information to the gNB using the BWP1. Next,
in step S603, the gNB determines that the UE1 does not use the
BWP2, the BWP3 and the BWP4, thereby determining that the UE2 may
share the COT of the UE1. Next, in step S604, the gNB configures
multiple BWPs for the UE2, including at least one of the BWP2, the
BWP3, and the BWP4. Next, in step S605, the UE2 may perform the
channel detection process on the configured multiple BWPs, thereby
transmitting uplink information to the gNB within the COT of the
UE1 using an idle BWP. Therefore, the UE1 and the UE2 share the COT
of the UE1 and transmit uplink information to the gNB using
different BWPs.
[0091] As described above, a mechanism that an electronic device
200 configures a BWP for a user equipment is actually provided
according to the present disclosure. In other words, the electronic
device 200 provides services for the first user equipment and the
second user equipment, and the electronic device 200 has configured
multiple BWPs for the first user equipment, and has not configured
a BWP for the second user equipment. The electronic device 200 may
include processing circuitry configured to: receive uplink
information from the first user equipment; and determine a BWP used
for the second user equipment according to a BWP actually used when
the first user equipment transmits the uplink information. Here,
the electronic device may determine at least one of multiple BWPs
configured for the first user equipment other than the BWP actually
used for the first user equipment, as the BWP used for the second
user equipment.
[0092] In other words, according to an embodiment of the present
disclosure, the electronic device 200 may configure BWPs not used
by the first user equipment for the second user equipment, to avoid
waste of resources caused by the BWPs not used by the first user
equipment. Here, the BWPs configured for the second user equipment
by the electronic device 200 is not limited to be used in the COT
of the first user equipment. That is, the second user equipment may
freely use the configured BWPs. For example, the second user
equipment may perform the channel detection process on multiple
BWPs configured by the electronic device 200, to use a BWP that is
detected to be idle in the channel detection process. Similarly, in
a case that the second user equipment transmits uplink information
using one or more of the BWPs, the electronic device 200 may
further configure BWPs not used by the second user equipment for
other user equipment.
[0093] FIG. 7 is a signaling flow chart showing a process that
multiple user equipments share a BWP according to an embodiment of
the present disclosure. In FIG. 7, the UE1 represents the first
user equipment, the UE2 represents the second user equipment, and
the gNB represents the electronic device 200. That is, the gNB
provides services for the UE1 and the UE2. In step S701, the gNB
configures multiple BWPs for the UE1, including the BWP1, the BWP2,
the BWP3 and the BWP4. Next, in step S702, the UE1 transmits uplink
information to the gNB using the BWP1. Next, in step S703, the gNB
determines that the UE1 does not use the BWP2, the BWP3 and the
BWP4, thereby determining that at least one of the BWP2, the BWP3
and the BWP4 may be used by other UE. Next, in step S704, assuming
that the UE2 just accesses to the gNB and no BWP is configured for
the UE2, the gNB configures multiple BWPs for the UE2, including at
least one of the BWP2, the BWP3, and the BWP4. Next, in step S705,
the UE2 may perform the channel detection process on the configured
multiple BWPs, to transmit uplink information to the gNB using an
idle BWP. Therefore, the BWPs not used by the UE1 may be used by
other UE.
[0094] According to an embodiment of the present disclosure, the
electronic device 200 may receive channel detection results of the
multiple BWPs from the first user equipment via the communication
unit 240. The configuration unit 220 may determine the BWP used for
the second user equipment according to the channel detection
results of the multiple BWPs.
[0095] According to an embodiment of the present disclosure, the
channel detection results of the multiple BWPs may include
identification information of a BWP that is detected to be idle in
the channel detection process. That is, the first user equipment
may perform the channel detection process on one or more of BWPs
that are in the activated state, to determine whether each of the
BWPs that are in the activated state is idle, thereby transmitting
the identification information of the idle BWP to the electronic
device 200.
[0096] According to an embodiment of the present disclosure, the
channel detection results of the multiple BWPs may include channel
detection results of all the BWPs of the first user equipment that
are in the activated state. That is, the first user equipment may
perform the channel detection process on one or more of the BWPs
that are in the activated state, to determine whether each of the
BWPs that are in the activated state is idle, thereby transmitting
the channel detection results of all the BWP that are in the
activated state to the electronic device 200.
[0097] In addition, according to an embodiment of the present
disclosure, the channel detection results of the multiple BWPs may
not include a channel detection result of the BWP used by the first
user equipment.
[0098] For example, assuming that the BWPs that are in the
activated state of the first user equipment are the BWP1, the BWP2,
the BWP3 and the BWP4, the first user equipment performs the
channel detection process on the BWP1, the BWP2, the BWP3 and the
BWP4, to determine that the BWP1, the BWP2 and the BWP3 are idle
and the BWP4 is occupied, and the first user equipment transmits
uplink information by selecting the BWP1, thus channel detection
results transmitted by the first user equipment to the electronic
device 200 may include any one of the following: identification
information of the BWP1, the BWP2 and the BWP3 indicating that the
BWP1, the BWP2 and the BWP3 are idle; identification information of
the BWP2 and the BWP3 indicating that the BWP2 and the BWP3 are
idle and not used by the first user equipment; the BWP1, the BWP2
and the BWP3 being idle and the BWP4 being occupied; the BWP2 and
the BWP3 being idle and the BWP4 being occupied.
[0099] According to an embodiment of the present disclosure, the
configuration unit 220 may determine at least one of BWPs detected
to be idle by the first user equipment, as the BWP used for the
second user equipment.
[0100] Here, in a case that one or more of the BWPs detected to be
idle by the first user equipment and not used by the first user
equipment is the BWP of the second user equipment that is in the
activated state, the determination unit 210 determines that the
second user equipment may share the COT of the first user
equipment. Furthermore, the configuration unit 220 determines the
BWP of the second user equipment that is in the activated state
among the BWPs detected to be idle by the first user equipment and
not used by the first user equipment, as the frequency domain
resources for the second user equipment to transmit uplink
information.
[0101] According to an embodiment of the present disclosure, the
configuration unit 220 may further configure time domain resources
for the second user equipment to transmit uplink information. The
generation unit 230 may generate time domain resource indication
information of the second user equipment, to indicate time domain
resources used for the second user equipment. Furthermore, the
electronic device 200 may further transmit the time domain resource
indication information to the second user equipment via the
communication unit 240. Here, the electronic device 200 may
simultaneously transmit the time domain resource indication
information and the frequency domain resource indication
information to the second user equipment, or respectively transmit
the time domain resource indication information and the frequency
domain resource indication information.
[0102] According to an embodiment of the present disclosure, the
electronic device 200 may receive, from the first user equipment,
time domain resources within the COT of the first user equipment,
as the time domain resources used for the second user
equipment.
[0103] FIG. 8 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure. In FIG.
8, the UE1 represents the first user equipment, the UE2 represents
the second user equipment, and the gNB represents the electronic
device 200. That is, the gNB provides services for the UE1 and the
UE2. In step S801, the gNB configures multiple BWPs for the UE1,
including the BWP1, the BWP2, the BWP3 and the BWP4 that are in the
activated state. Next, in step S802, the UE1 performs the channel
detection process on each of the BWPs that are in the activated
state, to determine that the BWP1, the BWP2, the BWP3 and the BWP4
are idle. Next, in step S803, the UE1 transmit uplink information
to the gNB by selecting the BWP1. Furthermore, the UE1 may further
transmit time domain resources within a COT of the UE1 to the gNB.
Furthermore, the UE1 may further transmit channel detection results
of the multiple BWPs to the gNB. For example, the channel detection
results include information indicating the BWP2, the BWP3 and the
BWP4 each being idle, for example, including identification
information of the BWP2, the BWP3 and the BWP4. Next, in step S804,
the gNB determines that at least one of the BWP2, the BWP3 and the
BWP4 is the BWP of the UE2 that is in the activated state, thereby
determining that the UE1 and the UE2 may share the COT of the UE1.
It is assumed that the BWP2 is the BWP of the UE2 that is in the
activated state. Next, in step S805, the gNB transmits time domain
resource indication information (indicating time domain resources
within the COT of the UE1) and frequency domain resource indication
information (such as the BWP2) to the UE2. Next, in step S806, the
UE2 may transmit uplink information to the gNB using the BWP2
within the COT of the UE1. Therefore, the UE1 and the UE2 may share
the COT of the UE1, thereby transmitting uplink information to the
gNB using different BWPs.
[0104] As described above, the first user equipment may transmit
channel detection results of the BWP of the first user equipment
that is in the activated state to the electronic device 200, so
that the electronic device 200 may allocate a BWP that is detected
to be idle in the channel detection process and not used by the
first user equipment to the second user equipment to use. In this
way, the second user equipment can use such BWP without performing
the channel detection process or by performing a simple channel
detection process. That is, the second user equipment can quickly
access to the unlicensed frequency band by using the channel
detection results of the first user equipment without performing
the channel detection process again.
[0105] As described above, according to an embodiment of the
present disclosure, the second user equipment may use the BWP that
is not used by the first user equipment to improve the resource
utilization. Furthermore, the second user equipment may further use
the BWP that is not used by the first user equipment and is
detected to be idle, by using the channel detection results of the
first user equipment, thereby improving speed for accessing to the
unlicensed frequency band by the second user equipment without
performing the channel detection process.
[0106] According to an embodiment of the present disclosure, as
shown in FIG. 2, the electronic device 200 may further include a
feedback unit 250. The feedback unit 250 is configured to transmit,
in response to the uplink information from the first user
equipment, feedback information to the first user equipment using
each of multiple BWPs of the first user equipment that are in the
activated state.
[0107] According to an embodiment of the present disclosure, the
electronic device 200 may receive the uplink information from a
part of the multiple BWPs of the first user equipment that are in
the activated state, and transmit feedback information to the first
user equipment using all of the multiple BWPs of the first user
equipment that are in the activated state. In this way, probability
of the feedback information being successfully received and decoded
can be improved.
[0108] FIG. 9 is a schematic diagram showing a process of
transmitting feedback information using multiple BWPs according to
an embodiment of the present disclosure. As shown in FIG. 9, the UE
represents a user equipment within coverage of the gNB. The user
equipment has four BWPs that are in the activated state: the BWP1,
the BWP2, the BWP3 and the BWP4. According to an embodiment of the
present disclosure, the UE transmits uplink data to the gNB using
the BWP1, and the gNB may transmit feedback information to the UE
using each of the BWP1, the BWP2, the BWP3 and the BWP4. The
feedback information may include, for example, ACK/NACK
information.
[0109] As described above, a mechanism for transmitting control
information is actually provided according to the present
disclosure. That is, the electronic device 200 may include
processing circuitry. The processing circuitry is configured to:
receive, from a user equipment served by the electronic device 200,
uplink information within a part or all of multiple BWPs of the
user equipment that are in the activated state; and transmit
control information to the user equipment within each of the
multiple BWPs of the user equipment that are in the activated
state. The control information herein may be, for example, feedback
information of the ACK/NACK.
[0110] According to an embodiment of the present disclosure, the
electronic device 200 may further receive uplink information
transmitted by using a BWP after being switched from the first user
equipment via the communication unit 240; and receive indication
information for indicating channel conditions of a BWP before being
switched from the first user equipment.
[0111] As described above, according to an embodiment of the
present disclosure, after being switched to a BWP, the first user
equipment may transmit the indication information for indicating
the channel conditions of the BWP before being switched to the
electronic device 200. The indication information herein may
include Signal to Interference Ratio (SIR), Signal to Interference
plus Noise Ratio (SINR), Signal Noise Ratio (SNR), Channel Quality
Indication (CQI) and the like of the BWP before being switched. The
indication information is not limited in the present disclosure.
Furthermore, the indication information may further include
identification information of the BWP before being switched. In
this way, the electronic device 200 configures a BWP for other user
equipment with reference to the indication information transmitted
by the first user equipment.
[0112] According to an embodiment of the present disclosure, as
shown in FIG. 2, the electronic device 200 further includes a
setting unit 260. The setting unit 260 is configured to configure a
BWP, set an activation state of the BWP, and set various parameters
of the BWP and the like for a user equipment within coverage of the
electronic device 200.
[0113] According to an embodiment of the present disclosure, the
setting unit 260 may set a user-specific parameter of the BWP used
for the second user equipment as a default value. Specifically, the
user-specific parameter may include a user-specific RRC
configuration parameter, such as a beamFailureRecoveryConfig
parameter, and a pucch-Config parameter. That is, in a case that
the electronic device 200 determines that a BWP configured for the
first user equipment is reallocated to the second user equipment,
the user-specific parameter of such BWP is required to be set as
the default value, so that the second user equipment may use such
BWP.
[0114] It can be seen that according to the electronic device 200
in the embodiment of the present disclosure, the second user
equipment may share the COT of the first user equipment. That is,
the first user equipment and the second user equipment may transmit
uplink information within the COT of the first user equipment using
orthogonal frequency domain resources. In this way, the second user
equipment can access to the unlicensed frequency band without
performing the channel detection process again, thereby greatly
reducing time for the second user equipment to access to the
unlicensed frequency band. Here, the first user equipment and the
second user equipment may use orthogonal frequency domain resources
within a same BWP or different BWPs. Furthermore, the electronic
device 200 may configure BWPs not used by the first user equipment
for the second user equipment, to avoid waste of resources caused
by the BWPs not used by the first user equipment. In addition, the
electronic device 200 may further transmit control information to a
user equipment within each of multiple BWPs of the user equipment
that are in the activated state within coverage of the electronic
device 200, thereby improving the probability of the control
information being successfully received. Therefore, an enhanced
mechanism for using a BWP is provided according to the present
disclosure, thereby improving the resource utilization of the
system, reducing the time for the user equipment to access to the
unlicensed frequency band, and reducing delay of information.
[0115] [3. Configuration Examples of Electronic Device for User
Side]
[0116] FIG. 10 is a structural block diagram showing an electronic
device 1000 in a wireless communication system according to an
embodiment of the present disclosure. The electronic device 1000
may serve as a user side device in the wireless communication
system. As shown in FIG. 10, the electronic device 1000 may include
a determination unit 1010 and a generation unit 1020.
[0117] Here, each unit of the electronic device 1000 may be
included in processing circuitry. It should be noted that, the
electronic device 1000 may include one processing circuitry or
multiple processing circuitries. Furthermore, the processing
circuitry may include various discrete functional units to perform
various different functions and/or operations. It should be noted
that these functional units may be physical entities or logical
entities, and units with different names may be implemented by a
same physical entity.
[0118] According to an embodiment of the present disclosure, the
determination unit 1010 may determine that other user equipment
shares a COT of the electronic device 1000 in time domain. The
other user equipment and the electronic device 1000 transmit uplink
information to a network side device within the COT of the
electronic device 1000 using orthogonal frequency domain resources.
Here, other user equipment and the electronic device 1000 are
within a service range of the network side device.
[0119] According to an embodiment of the present disclosure, the
generation unit 1020 may generate time domain resource indication
information of other user equipment, to indicate time domain
resources used for the other user equipment.
[0120] As described above, according to the embodiment of the
present disclosure, the electronic device 1000 may determine that
other user equipment shares the COT of the electronic device 1000,
to generate the time domain resource indication information of the
other user equipment. In this way, the other user equipment and the
electronic device 1000 may transmit uplink information to the
network side device within the COT of the electronic device 1000
using orthogonal frequency domain resources, so that the other user
equipment can access to an unlicensed frequency band without
performing a channel detection process, thereby improving the speed
for other user equipment to access to the unlicensed frequency
band.
[0121] The determination process of the determination unit 1010 is
not limited in the present disclosure. For example, the
determination unit 1010 may determine that other user equipment may
share the COT of the electronic device 1000 in a case that a
channel condition of a to-be-used BWP is determined to be good, or
the electronic device 1000 receives indication information from the
network side device to determine that other user equipment is
required to share the COT the electronic device 1000. Here, the
electronic device 1000 may not determine which user equipment
(equipments) can share the COT, but may only determine that other
user equipment may share the COT of the electronic device 1000.
[0122] According to an embodiment of the present disclosure, the
generation unit 1020 may determine time domain resources within the
COT of the electronic device 1000 as time domain resources of other
user equipment. That is, time domain resource indication
information may include, for example, starting time and ending time
of the COT of the electronic device 1000.
[0123] According to an embodiment of the present disclosure, as
shown in FIG. 10, the electronic device 1000 may further include a
communication unit 1030. The communication unit 1030 is configured
to transmit information to devices other than the electronic device
1000, and/or receive information from devices other than the
electronic device 1000.
[0124] According to an embodiment of the present disclosure, the
electronic device 1000 may transmit time domain resource indication
information of other user equipment, to the other user equipment or
the network side device via the communication unit 1030. Here, in a
case that the electronic device 1000 transmits the time domain
resource indication information of other user equipment to the
network side device, the network side device may forward the time
domain resource indication information of the other user equipment
to the other user equipment. In a case that the electronic device
1000 transmits the time domain resource indication information of
other user equipment to other user equipment, the electronic device
1000 may transmit the time domain resource indication information
by broadcasting.
[0125] According to an embodiment of the present disclosure, the
electronic device 1000 and other user equipment may transmit uplink
information to the network side device using orthogonal frequency
domain resources within a same BWP.
[0126] According to an embodiment of the present disclosure, the
electronic device 1000 may receive, from the network side device,
the frequency domain resource indication information of the
electronic device 1000 via the communication unit 1030.
[0127] Furthermore, according to an embodiment of the present
disclosure, as show in FIG. 10, the electronic device 1000 may
further include a configuration unit 1040. The configuration unit
1040 is configured to determine frequency domain resources used
when the electronic device 1000 transmits the uplink information
according to the frequency domain resource indication information.
Here, the frequency domain resource indication information of the
electronic device 1000 indicates an index used for frequency domain
resources of the electronic device 1000, and the indexes of the
frequency domain resources have a mapping relationship with
frequency domain resources within the BWP. For example, in a case
that the electronic device 1000 receives an index 0, it is
determined that a location of the frequency domain resources
represented by the index 0 shown in FIG. 3 in frequency domain.
Furthermore, after determining the frequency domain resources for
transmitting uplink information, the electronic device 1000 may
transmit uplink information to the network side device within the
COT of the electronic device 1000 using the above frequency domain
resources. In addition, the electronic device 1000 may
simultaneously transmit uplink information and time domain resource
indication information, which is described in detail in the
description of the electronic device 200, and is not repeated
herein.
[0128] According to an embodiment of the present disclosure, the
electronic device 1000 may transmit to other electronic device
frequency domain resources used when the electronic device 1000
transmits the uplink information via the communication unit 1030.
For example, the electronic device 1000 may broadcast the frequency
domain resources used when the electronic device 1000 transmits the
uplink information. For example, the electronic device 1000 may
represent the frequency domain resources used when the electronic
device 1000 transmits the uplink information by using the index of
the frequency domain resource. Furthermore, the electronic device
1000 may simultaneously transmit the time domain resource
indication information of other user equipment and the frequency
domain resources used when the electronic device 1000 transmits the
uplink information, or respectively transmit the time domain
resource indication information of other user equipment and the
frequency domain resources used when the electronic device 1000
transmits the uplink information.
[0129] In this way, other user equipment may determine the time
domain resources within the COT of the electronic device 1000 after
receiving the time domain resource indication information.
Furthermore, after receiving the frequency domain resources used
when the electronic device 1000 transmits uplink information, other
user equipment may transmit uplink information by selecting
frequency domain resources orthogonal to the frequency domain
resources used by electronic device 1000. In addition, in a case
that other user equipment determines that a BWP used by electronic
device 1000 is a BWP of other user equipment that is in the
activated state, it is determined that the other user equipment may
share the COT of the electronic device 1000, and may transmit
uplink information by selecting frequency domain resources
orthogonal to the frequency domain resources used by the electronic
device 1000.
[0130] FIG. 11 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure. In FIG.
11, the UE1 represents the electronic device 1000, the UE2
represents other user equipment, and the gNB represents the network
side device. That is, the gNB provides services for the UE1 and the
UE2, the UE1 acquires a right to use the unlicensed frequency band
(such as a specific BWP) by performing a channel detection process.
As shown in FIG. 11, in step S1101, the UE1 determines that other
user equipment may share a COT of the UE1. Next, in step S1102, the
UE1 transmits uplink information to the gNB. It is assumed that the
UE1 transmits uplink information to the gNB using the frequency
domain resources represented by the index 0 shown in FIG. 3. Next,
in step S1103, the UE1 broadcasts time domain resource indication
information, for example, including time domain resources within
the COT of the UE1. Furthermore, the UE1 may further broadcast
frequency domain resources used by the UE1, for example, including
the index 0. Next, in step S1104, after receiving information
transmitted by the UE1, the UE2 determines that the UE1 uses the
frequency domain resources represented by the index 0, and that a
BWP used by the UE1 is a BWP of the UE2 that is in the activated
state. Therefore, the UE2 may determine that the UE2 may share the
COT of the UE1, and select the frequency domain resources
orthogonal to the UE1, for example, the frequency domain resources
represented by the index 1 shown in FIG. 3. Next, in step S1105,
the UE2 may transmit uplink information to the gNB within the COT
of the UE1 by selecting the frequency domain resources. Therefore,
the UE1 and the UE2 transmit uplink information to the gNB within
the COT of the UE1 using orthogonal frequency domain resources
within a same BWP.
[0131] According to an embodiment of the present disclosure, the
electronic device 1000 and other user equipment may transmit uplink
information to the network side device using different BWPs.
[0132] According to an embodiment of the present disclosure, as
shown in FIG. 10, the electronic device 1000 may include a
detection unit 1050. The detection unit 1050 is configured to
perform a channel detection process. Here, the electronic device
1000 may perform the channel detection process on each of multiple
BWPs of the electronic device 1000 that are in the activated
state.
[0133] According to an embodiment of the present disclosure, the
electronic device 1000 may further include an uplink information
generation unit 1060. The uplink information generation unit 1060
is configured to generate uplink information. Here, the electronic
device 1000 may transmit uplink information to the network side
device using a BWP that is detected to be idle in the channel
detection process.
[0134] According to an embodiment of the present disclosure, the
electronic device 1000 may transmit channel detection results of
the multiple BWPs to the network side device via the communication
unit 1030, so that the network side device determines at least one
of the BWPs that are detected to be idle by the electronic device
1000 as a BWP used for other user equipment.
[0135] As described above, the channel detection results of the
multiple BWPs may include identification information of a BWP that
is detected to be idle in the channel detection process. The
channel detection results of the multiple BWPs may include channel
detection result of each of the BWPs that are in the activated
state. In addition, according to an embodiment of the present
disclosure, the channel detection results of the multiple BWPs may
not include channel detection result of a BWP used by the
electronic device 1000.
[0136] According to an embodiment of the present disclosure, the
electronic device 1000 may further transmit a BWP that is detected
to be idle in the channel detection process and is not used by the
electronic device 1000 to other user equipment via the
communication unit 1030, for the other user equipment to transmit
uplink information. Here, the electronic device 1000 may transmit
the BWP that is detected to be idle in the channel detection
process and is not used by the electronic device 1000 by
broadcasting. Furthermore, the electronic device 1000 may
simultaneously transmit the time domain resource indication
information and the BWP that is detected to be idle in the channel
detection process and is not used by the electronic device 1000, or
may respectively transmit the time domain resource indication
information and the BWP that is detected to be idle in the channel
detection process and is not used by the electronic device
1000.
[0137] FIG. 12 is a signaling flow chart showing a process that
multiple user equipments share a COT of one user equipment
according to another embodiment of the present disclosure. In FIG.
12, the UE1 represents the electronic device 1000, the UE2
represents other user equipment, and the gNB represents the network
side device. That is, the gNB provides services for the UE1 and the
UE2. In step S1201, the gNB configures multiple BWPs for the UE1,
including the BWP1, the BWP2, the BWP3 and the BWP4 that are in the
activated state. Next, in step S1202, the UE1 performs the channel
detection process on each of the BWPs that are in the activated
state, to determine that the BWP1, the BWP2, the BWP3 and the BWP4
each are idle. Next, in step S1203, the UE1 transmits uplink
information to the gNB by selecting the BWP1. Next, in step S1204,
the UE1 determines that other user equipment may share a COT of the
UE1. Next, in step S1205, the UE1 broadcasts time domain resources
within the COT of the UE1. Furthermore, the UE1 may further
broadcast channel detection results of multiple BWPs. For example,
the channel detection results include information indicating the
BWP2, the BWP3 and the BWP4 each being idle, for example, including
identification information of the BWP2, the BWP3 and the BWP4.
Next, in step S1206, the UE2 determines that at least one of the
BWP2, the BWP3 and the BWP4 is a BWP of the UE2 that is in the
activated state. It is assumed that the BWP2 is the BWP of the UE2
that is in the activated state. Therefore, the UE2 may transmit
uplink information to the gNB within the COT of the UE1 using the
BWP2. Here, the UE2 may not perform the channel detection process
or may perform a simple channel detection process in the process of
using the BWP2. Therefore, the UE1 and the UE2 may share the COT of
the UE1, to transmit uplink information to the gNB using different
BWPs.
[0138] According to an embodiment of the present disclosure, the
electronic device 1000 may transmit uplink information to the
network side device via the communication 1030, and receive
feedback information from the network side device using each of
multiple BWPs of the electronic device 1000 that are in the
activated state.
[0139] According to an embodiment of the present disclosure, as
shown in FIG. 10, the electronic device 1000 may further include a
switching unit 1070. The switching unit 1070 is configured to
switch to another BWP among the multiple BWPs that are in the
activated state configured for the electronic device 1000, in a
case that no feedback information is received from the network side
device within a predetermined time.
[0140] Here, the switching unit 1070 may be provided with a timer.
The electronic device 1000 receives no feedback information from
the network side device when the timer expires, thus the switching
unit 1070 may determine that the electronic device 1000 is required
to be switched to another BWP.
[0141] According to an embodiment of the present disclosure, the
detection unit 1050 may perform the channel detection process on
the multiple BWPs that are in the activated state configured for
the electronic device 1000, so that the switching unit 1070 may
switch the electronic device 1000 to a BWP that is detected to be
idle in the channel detection process among the multiple BWPs that
are in the activated state. Here, in a case that the number of the
idle BWP among the multiple BWPs that are in the activated state
configured for the electronic device 1000 is one, the switching
unit 1070 may switch the electronic device 1000 to the idle BWP. In
a case that the number of the idle BWPs among the multiple BWPs
that are in the activated state configured for the electronic
device 1000 is more than one, the switching unit 1070 may switch
the electronic device 1000 to any one of the multiple idle
BWPs.
[0142] According to an embodiment of the present disclosure, the
BWPs of the electronic device 1000 that are in the activated state
other than the BWP being in the activated state before being
switched may (in any one of the ways described above) be used by
other user equipment. Therefore, the electronic device 1000 is
required to perform the channel detection process before being
switched to a BWP. If a BWP is detected to be idle in the channel
detection process, it is indicated that the BWP is not used by
other user equipment, and the electronic device 1000 may be
switched to such BWP.
[0143] According to an embodiment of the present disclosure, as
shown in FIG. 10, the electronic device 1000 may further include an
indication information generation unit 1080. The indication
information generation unit 1080 is configured to simultaneously
transmit uplink information using a BWP after being switched and
transmit indication information indicating channel conditions of a
BWP before being switched to the network side device. The
indication information herein may include Signal to Interference
Ratio (SIR), Signal to Interference plus Noise Ratio (SINR), Signal
Noise Ratio (SNR), Channel Quality Indication (CQI) and the like of
the BWP before being switched. Types of the indication information
are not limited in the present disclosure. In addition, the
indication information may further include identification
information of the BWP before being switched. In a non-limiting
embodiment, in a case that the electronic device 1000 is provided
with four BWPs, the indication information generation unit 1080 may
indicate identification of the BWP before being switched by using
two bits. Furthermore, the indication information generation unit
1080 may further indicate the CQI of the BWP before being switched
by using four bits. Therefore, the indication information generated
by the indication information generation unit 1080 may include six
bits.
[0144] According to an embodiment of the present disclosure, the
indication information generation unit 1080 may carry such
instruction information using Uplink Control Information (UCI).
[0145] As described above, a mechanism for automatically switching
a BWP is actually provided according to the present disclosure.
That is, the electronic device 1000 according to the embodiment of
the present disclosure includes processing circuitry. The
processing circuitry is configured to: transmit uplink information
using one of the multiple BWPs that are in the activated state to
the network side device; and switch to another BWP among the
multiple BWPs that are in the activated state, in a case that no
feedback information is received from the network side device
within a predetermined time. In an embodiment, the processing
circuitry is configured to: perform the channel detection process
on multiple BWPs that are in the activated state configured for the
electronic device 1000; and switch the electronic device 1000 to a
BWP that is detected to be idle in the channel detection process
among the multiple BWPs that are in the activated state.
[0146] As described above, it is assumed that the electronic device
1000 transmits uplink information to the network side device using
the BWP that are in the activated state. For some services
sensitive to delay, if the electronic device 1000 receives no
feedback information from the network side device, the electronic
device 1000 is required to be switched to another BWP that is in
the activated state to re-transmit the uplink information to the
network side device. In this case, the network side device is
required to schedule, and the switching process is complex and
time-consuming, resulting in not meeting low delay requirements of
the services. According to the embodiment of the present
disclosure, in the case that no feedback information is received
from the network side device within a predetermined time, the
electronic device 1000 may perform automatically a switching
process, to cause the electronic device 1000 to be switched to
another idle BWP that is in the activated state. In this way, the
switching process can be simplified, thereby meeting the low delay
requirements of some services.
[0147] It can be seen that according to the electronic device 1000
in the embodiment of the present disclosure, other user equipment
may share the COT of the electronic device 1000. That is, other
user equipment and the electronic device 1000 may transmit uplink
information using orthogonal frequency domain resources within the
COT of the electronic device 1000. In this way, other user
equipment can access to an unlicensed frequency band without
performing the channel detection process, thereby greatly reducing
the time for other user equipment to access to the unlicensed
frequency band. Here, other user equipment and the electronic
device 1000 may use orthogonal frequency domain resources within a
same BWP, or may use orthogonal frequency domain resources within
different BWPs. In addition, the electronic device 1000 may further
receive control information from the network side device by each of
the multiple BWPs that are in the activated state, to improve the
probability of the control information being successfully received.
Furthermore, in the case that no feedback information is received
from the network side device within a predetermined time, the
electronic device 1000 may be switched to another BWP among the
multiple BWPs that are in the activated state, thereby reducing
signaling in the switching process and meeting the low delay
requirements of the services. Therefore, an enhanced mechanism for
using a BWP is provided according to the present disclosure,
thereby improving the resource utilization of the system, reducing
the time for a user equipment to access to the unlicensed frequency
band, and reducing the delay of information.
[0148] According to an embodiment of the present disclosure, the
electronic device 200 may serve as the network side device, and the
electronic device 1000 may serve as the user equipment. That is,
the electronic device 200 may provide services for the electronic
device 1000. Therefore, all the embodiments of the electronic
device 200 described above are applicable to this.
[0149] [4. Method Embodiments]
[0150] Next, a wireless communication method performed by an
electronic device 200 for a network side in a wireless
communication system according to embodiments of the present
disclosure is described in detail. Here, the electronic device 200
may serve a first user equipment and a second user equipment.
[0151] FIG. 13 is a flow chart showing a wireless communication
method performed by an electronic device 200 for a network side in
a wireless communication system according to an embodiment of the
present disclosure.
[0152] As shown in FIG. 13, in step S1310, it is determined that a
second user equipment shares a COT of a first user equipment in
time domain. The first user equipment and the second user equipment
transmit uplink information to an electronic device within the COT
of the first user equipment using orthogonal frequency domain
resources.
[0153] Next, in step S1320, frequency domain resource indication
information of the second user equipment is generated, to indicate
frequency domain resources used for the second user equipment.
[0154] In an embodiment, the first user equipment and the second
user equipment transmit uplink information to the electronic device
200 using orthogonal frequency domain resources within a same
BWP.
[0155] In an embodiment, the wireless communication method further
includes: generating frequency domain resource indication
information of the first user equipment, to indicate frequency
domain resources used for the first user equipment.
[0156] In an embodiment, the frequency domain resource indication
information of the second user equipment indicates an index of
frequency domain resources used for the second user equipment, and
the frequency domain resource indication information of the first
user equipment indicates an index of frequency domain resources
used for the first user equipment. The indexes of the frequency
domain resources have a mapping relationship with frequency domain
resources within the BWP.
[0157] In an embodiment, the wireless communication method further
includes: receiving uplink information from the first user
equipment; and determining, according to frequency domain resources
actually used when the first user equipment transmits the uplink
information, frequency domain resources used for the second user
equipment.
[0158] In an embodiment, the wireless communication method further
includes: generating time domain resource indication information of
the second user equipment, to indicate time domain resources used
for the second user equipment.
[0159] In an embodiment, the wireless communication method further
includes: receiving, from the first user equipment, time domain
resources within the COT of the first user equipment, as the time
domain resources used for the second user equipment.
[0160] In an embodiment, the BWP is a BWP of the first user
equipment that is in an activated state and is a BWP of the second
user equipment that in an activated state.
[0161] In an embodiment, the first user equipment and the second
user equipment transmit uplink information to the electronic device
200 using different BWPs.
[0162] In an embodiment, the wireless communication method further
includes: receiving uplink information from the first user
equipment; and determining, according to a BWP actually used when
the first user equipment transmits the uplink information, a BWP
used for the second user equipment.
[0163] In an embodiment, the process of determining the BWP used
for the second user equipment further includes: determining at
least one of multiple BWPs configured for the first user equipment
other than the BWP actually used by the first user equipment, as
the BWP used for the second user equipment.
[0164] In an embodiment, the process of determining the BWP used
for the second user equipment further includes: receiving channel
detection results of the multiple BWPs from the first user
equipment; and determining the BWP used for the second user
equipment according to the channel detection results of the
multiple BWPs.
[0165] In an embodiment, the process of determining the BWP used
for the second user equipment further includes: determining at
least one of BWPs that are detected to be idle by the first user
equipment as the BWP used for the second user equipment.
[0166] In an embodiment, the wireless communication method further
includes: generating time domain resource indication information of
the second user equipment, to indicate time domain resources used
for the second user equipment.
[0167] In an embodiment, the wireless communication method further
includes: receiving, from the first user equipment, time domain
resources within the COT of the first user equipment, as the time
domain resources used for the second user equipment.
[0168] In an embodiment, the wireless communication method further
includes: receiving uplink information from the first user
equipment; and transmitting, in response to the uplink information
from the first user equipment, feedback information to the first
user equipment using each of multiple BWPs of the first user
equipment that are in the activated state.
[0169] In an embodiment, the wireless communication method further
includes: receiving, from the first user equipment, uplink
information transmitted by using the BWP after being switched; and
receiving indication information for indicating channel conditions
of the BWP before being switched from the first user equipment.
[0170] In an embodiment, the wireless communication method further
includes: setting a user-specific parameter of the BWP used for the
second user equipment as a default value.
[0171] According to the embodiment of the present disclosure, a
main body performing the above method may be the electronic device
200 according to the embodiment of the present disclosure, and thus
all the embodiments of the electronic device 200 described above
are applicable here.
[0172] Next, a wireless communication method performed by the
electronic device 1000 for a user side in a wireless communication
system according to an embodiment of the present disclosure is
described in detail.
[0173] FIG. 14 is a flow chart showing a wireless communication
method performed by an electronic device 1000 for a user side in a
wireless communication system according to an embodiment of the
present disclosure.
[0174] As shown in FIG. 14, in step S1410, it is determined that
other user equipment shares a Channel Occupy Time (COT) of an
electronic device 1000 in time domain. The other user equipment and
the electronic device transmit uplink information to a network side
device within the COT of the electronic device 1000 using
orthogonal frequency domain resources.
[0175] Next, in step S1420, time domain resource indication
information of the other user equipment is generated, to indicate
time domain resources used for the other user equipment.
[0176] In an embodiment, the wireless communication method further
includes: transmitting the time domain resource indication
information of the other user equipment, to the other user
equipment or the network side device.
[0177] In an embodiment, the electronic device 1000 and the other
user equipment transmit uplink information to the network side
device using orthogonal frequency domain resources within a same
BWP.
[0178] In an embodiment, the wireless communication method further
includes: receiving, from the network side device, frequency domain
resource indication information of the electronic device 1000; and
determining, according to the frequency domain resource indication
information, frequency domain resources used when the electronic
device 1000 transmits the uplink information.
[0179] In an embodiment, the frequency domain resource indication
information of the electronic device 1000 indicates an index of
frequency domain resources used for the electronic device 1000. The
indexes of the frequency domain resources have a mapping
relationship with frequency domain resources within the BWP.
[0180] In an embodiment, the wireless communication method further
includes: transmitting the frequency domain resources used when the
electronic device 1000 transmits the uplink information to other
user equipment, so that the other user equipment transmits the
uplink information by selecting frequency domain resources
orthogonal to the frequency domain resources used for the
electronic device 1000.
[0181] In an embodiment, the electronic device 1000 and other user
equipment transmit uplink information to the network side device
using different BWPs.
[0182] In an embodiment, the wireless communication method further
includes: performing a channel detection process on multiple BWPs;
and transmitting uplink information to the network side device
using a BWP that is detected to be idle in the channel detection
process.
[0183] In an embodiment, the wireless communication method further
includes: transmitting channel detection results of the multiple
BWPs to the network side device, so that the network side device
determines at least one of BWPs that are detected to be idle by the
electronic device 1000 as a BWP used for other user equipment.
[0184] In an embodiment, the wireless communication method further
includes: transmitting, a BWP that is detected to be idle in the
channel detection process and is not used by the electronic device
1000 to other user equipment, for the other user equipment to
transmit uplink information.
[0185] In an embodiment, the wireless communication method further
includes: transmitting uplink information to the network side
device; and receiving feedback information from the network side
device using each of multiple BWPs of the electronic device 1000
that are in the activated state.
[0186] In an embodiment, the wireless communication method further
includes: transmitting uplink information to the network side
device; and switching the electronic device 1000 to one of multiple
BWPs that are in the activated state configured for the electronic
device 1000, in a case that no feedback information is received
from the network side device within a predetermined time.
[0187] In an embodiment, the wireless communication method further
includes: performing a channel detection process on the multiple
BWPs that are in the activated state configured for the electronic
device 1000; and switching the electronic device 1000 to a BWP that
is detected to be idle in the channel detection process among the
multiple BWPs that are in the activated state.
[0188] In an embodiment, the wireless communication method further
includes: transmitting uplink information to the network side
device using a BWP after being switched; and transmitting
indication information indicating channel conditions of a BWP
before being switched to the network side device.
[0189] According to the embodiment of the present disclosure, a
main body performing the above method may be the electronic device
1000 according to the embodiment of the present disclosure, and
thus all the embodiments of the electronic device 1000 described
above are applicable here.
[0190] [5. Application Examples]
[0191] The technology of the present disclosure may be applied to
various products.
[0192] The network side device may be implemented as any type of
TRP. The TRP may have a function of transmitting and receiving. For
example, the TRP may receive information from a user equipment and
a base station apparatus, and may further transmit information to
the user equipment and the base station apparatus. In a typical
example, the TRP may provide services for the user equipment and
may also be controlled by the base station apparatus. Furthermore,
the TRP may have a structure similar to structures of base station
apparatuses described below, or may only have a structure related
to information transmitting and receiving in the base station
apparatus.
[0193] The network side device may further be implemented as any
type of base station apparatuses, such as a macro eNB and a small
eNB, and may further be implemented as any type of gNB (a base
station in a 5G system). The small eNB may be an eNB covering a
cell smaller than a macro cell, such as a pico eNB, a micro eNB or
a home (femto) eNB. Alternatively, the base station may be
implemented as any other type of base station, such as a NodeB and
a base transceiver station (BTS). The station base may include: a
main body (also referred to as a base station apparatus) configured
to control wireless communication; and one or more remote radio
heads (RRH) arranged at positions different from the main body.
[0194] The user equipment may be implemented as mobile terminals
(such as a smart phone, a tablet personal computer (PC), a notebook
PC, a portable game terminal, a portable/dongle mobile router and a
digital camera) or a vehicle terminal (such as a car navigation
apparatus). The user equipment may be implemented as a terminal
(also known as machine type communication (MTC) terminal) that
performs machine to machine (M2M) communication. In addition, the
user equipment may be a wireless communication module (such as an
integrated circuit module including one wafer) installed on each of
the above user equipments.
[0195] [Application Example On Base Station]
[0196] (First Application Example)
[0197] FIG. 15 is a block diagram showing a first schematic
configuration example of an eNB to which the technology of the
present disclosure may be applied. An eNB 1500 includes one or more
antennas 1510 and a base station apparatus 1520. The base station
apparatus 1520 and each antenna 1510 may be connected to each other
via an RF cable.
[0198] Each of the antennas 1510 includes a single or multiple
antenna elements (such as multiple antenna elements included in a
multi-input multi-output (MIMO) antenna), and is used for the base
station apparatus 1520 to transmit and receive wireless signals. As
shown in FIG. 15, the eNB 1500 may include the multiple antennas
1510. For example, the multiple antennas 1510 may be compatible
with multiple frequency bands used by the eNB 1500. Although FIG.
15 shows the example in which the eNB 1500 includes the multiple
antennas 1510, the eNB 1500 may also include a single antenna
1510.
[0199] The base station apparatus 1520 includes a controller 1521,
a memory 1522, a network interface 1523, and a wireless
communication interface 1525.
[0200] The controller 1521 may be, for example, a CPU or a DSP, and
operates various functions of a higher layer of the base station
apparatus 1520. For example, the controller 1521 generates a data
packet from data in signals processed by the wireless communication
interface 1525, and transfers the generated packet via the network
interface 1523. The controller 1521 may bundle data from multiple
base band processors to generate the bundled packet, and transfer
the generated bundled packet. The controller 1521 may have logical
functions of performing control such as radio resource control,
radio bearer control, mobility management, admission control and
scheduling. The control may be performed in corporation with an eNB
or a core network node in the vicinity. The memory 1522 includes a
RAM and a ROM, and stores a program executed by the controller
1521, and various types of control data (such as a terminal list,
transmission power data, and scheduling data).
[0201] The network interface 1523 is a communication interface for
connecting the base station apparatus 1520 to a core network 1524.
The controller 1521 may communicate with a core network node or
another eNB via the network interface 1523. In this case, the eNB
1500, and the core network node or the other eNB may be connected
to each other via a logical interface (such as an S2 interface and
an X2 interface). The network interface 1523 may also be a wired
communication interface or a wireless communication interface for
wireless backhaul. If the network interface 1523 is a wireless
communication interface, the network interface 1823 may use a
higher frequency band for wireless communication than a frequency
band used by the wireless communication interface 1525.
[0202] The wireless communication interface 1525 supports any
cellular communication scheme (such as Long Term Evolution (LTE)
and LTE-Advanced), and provides wireless connection to a terminal
positioned in a cell of the eNB 1500 via the antenna 1510. The
wireless communication interface 1525 may typically include, for
example, a BB processor 1526 and an RF circuit 1527. The BB
processor 1526 may perform, for example, encoding/decoding,
modulating/demodulating, and multiplexing/demultiplexing, and
performs various types of signal processing of layers (such as L1,
medium access control (MAC), radio link control (RLC), and a packet
data convergence protocol (PDCP)). The BB processor 1526 may have a
part or all of the above-described logical functions instead of the
controller 1521. The processor 1526 may be a memory that stores a
communication control program, or a module that includes a
processor and a related circuit configured to execute the program.
Updating the program may allow the functions of the BB processor
1526 to be changed. The module may be a card or a blade that is
inserted into a slot of the base station apparatus 1520.
Alternatively, the module may also be a chip that is mounted on the
card or the blade. Meanwhile, the RF circuit 1527 may include, for
example, a mixer, a filter, and an amplifier, and transmits and
receives wireless signals via the antenna 1510.
[0203] As shown in FIG. 15, the wireless communication interface
1525 may include the multiple BB processors 1526. For example, the
multiple BB processors 1526 may be compatible with multiple
frequency bands used by the eNB 1500. As shown in FIG. 15, the
wireless communication interface 1525 may include the multiple RF
circuits 1527. For example, the multiple RF circuits 1527 may be
compatible with multiple antenna elements. Although FIG. 15 shows
the example in which the wireless communication interface 1525
includes the multiple BB processors 1526 and the multiple RF
circuits 1527, the wireless communication interface 1525 may also
include a single BB processor 1526 or a single RF circuit 1527.
[0204] (Second Application Example)
[0205] FIG. 16 is a block diagram showing a second schematic
configuration example of the eNB to which the technology of the
present disclosure may be applied. An eNB 1630 includes one or more
antennas 1640, a base station apparatus 1650, and an RRH 1660. The
RRH 1660 and each antenna 1640 may be connected to each other via
an RF cable. The base station apparatus 1650 and the RRH 1660 may
be connected to each other via a high speed line such as an optical
fiber cable.
[0206] Each of the antennas 1640 includes a single or multiple
antenna elements (such as multiple antenna elements included in an
MIMO antenna), and is used for the RRH 1660 to transmit and receive
wireless signals. As shown in FIG. 16, the eNB 1630 may include the
multiple antennas 1640. For example, the multiple antennas 1640 may
be compatible with multiple frequency bands used by the eNB 1930.
Although FIG. 16 shows the example in which the eNB 1630 includes
the multiple antennas 1640, the eNB 1630 may also include a single
antenna 1640.
[0207] The base station apparatus 1650 includes a controller 1651,
a memory 1652, a network interface 1653, a wireless communication
interface 1655, and a connection interface 1657. The controller
1651, the memory 1652, and the network interface 1653 are the same
as the controller 1521, the memory 1522, and the network interface
1523 described with reference to FIG. 15.
[0208] The wireless communication interface 1655 supports any
cellular communication scheme (such as LTE and LTE-Advanced), and
provides wireless communication to a terminal positioned in a
sector corresponding to the RRH 1660 via the RRH 1660 and the
antenna 1640. The wireless communication interface 1655 may
typically include, for example, a BB processor 1656. The BB
processor 1656 is the same as the BB processor 1526 described with
reference to FIG. 15, except that the BB processor 1656 is
connected to an RF circuit 1664 of the RRH 1660 via the connection
interface 1657. As shown in FIG. 16, the wireless communication
interface 1655 may include the multiple BB processors 1656. For
example, the multiple BB processors 1656 may be compatible with
multiple frequency bands used by the eNB 1630. Although FIG. 16
shows the example in which the wireless communication interface
1655 includes the multiple BB processors 1656, the wireless
communication interface 1655 may also include a single BB processor
1656.
[0209] The connection interface 1657 is an interface for connecting
the base station apparatus 1650 (wireless communication interface
1655) to the RRH 1660. The connection interface 1657 may also be a
communication module for performing communication in the
above-described high speed line that connects the base station
apparatus 1650 (wireless communication interface 1655) to the RRH
1660.
[0210] The RRH 1660 includes a connection interface 1661 and a
wireless communication interface 1663.
[0211] The connection interface 1661 is an interface for connecting
the RRH 1660 (wireless communication interface 1663) to the base
station apparatus 1650. The connection interface 1661 may also be a
communication module for performing communication in the
above-described high speed line.
[0212] The wireless communication interface 1663 transmits and
receives wireless signals via the antenna 1640. The wireless
communication interface 1663 may typically include, for example,
the RF circuit 1664. The RF circuit 1664 may include, for example,
a mixer, a filter, and an amplifier, and transmits and receives
wireless signals via the antenna 1640. As shown in FIG. 16, the
wireless communication interface 1663 may include multiple RF
circuits 1664. For example, the multiple RF circuits 1664 may
support multiple antenna elements. Although FIG. 16 shows the
example in which the wireless communication interface 1663 includes
the multiple RF circuits 1664, the wireless communication interface
1663 may also include a single RF circuit 1664.
[0213] In the eNB 1500 and the eNB 1630 respectively shown in FIG.
15 and FIG. 16, the determination unit 210, the configuration unit
220, the generation unit 230, the feedback unit 250, and the
setting unit 260 described in FIG. 2 may be implemented by the
controller 1521 and/or the controller 1651. At least part of the
functions may also be implemented by the controller 1521 and the
controller 1651. For example, the controller 1521 and/or the
controller 1651 may perform the following functions: determining
that multiple user equipments share a COT of one user equipment,
configuring frequency domain resources for the user equipment,
generating frequency domain resource indication information and
time domain resource indication information, generating feedback
information, and setting a configured BWP, an activated BWP and
parameters of the BWP for the user equipment, by executing
instructions stored in the memory.
[0214] [Application Example On Terminal Device]
[0215] (First Application Example)
[0216] FIG. 17 is a block diagram showing a schematic configuration
example of a smart phone 1700 to which the technology of the
present disclosure may be applied. The smart phone 1700 includes a
processor 1701, a memory 1702, a storage 1703, an external
connection interface 1704, a camera 1706, a sensor 1707, a
microphone 1708, an input device 1709, a display device 1710, a
speaker 1711, a wireless communication interface 1712, one or more
antenna switches 1715, one or more antennas 1716, a bus 1717, a
battery 1718, and an auxiliary controller 1719.
[0217] The processor 1701 may be, for example, a CPU or a system on
a chip (SoC), and controls functions of an application layer and
another layer of the smart phone 1700. The memory 1702 includes a
RAM and a ROM, and stores a program executed by the processor 1701
and data. The storage 1703 may include a storage medium such as a
semiconductor memory and a hard disk. The external connection
interface 1704 is an interface for connecting an external apparatus
(such as a memory card and a universal serial bus (USB) apparatus)
to the smart phone 1700.
[0218] The camera 1706 includes an image sensor (such as a charge
coupled device (CCD) and a complementary metal oxide semiconductor
(CMOS)), and generates a captured image. The sensor 1707 may
include a group of sensors such as a measurement sensor, a gyro
sensor, a geomagnetic sensor, and an acceleration sensor. The
microphone 1708 converts sounds that are inputted to the smart
phone 1700 to audio signals. The input device 1709 includes, for
example, a touch sensor configured to detect touch onto a screen of
the display device 1710, a keypad, a keyboard, a button, or a
switch, and receive an operation or information inputted from a
user. The display device 1710 includes a screen (such as a liquid
crystal display (LCD) and an organic light-emitting diode (OLED)
display), and displays an output image of the smart phone 1700. The
speaker 1711 converts audio signals that are outputted from the
smart phone 1700 to sounds.
[0219] The wireless communication interface 1712 supports any
cellular communication scheme (such as LTE and LTE-Advanced), and
performs wireless communication. The wireless communication
interface 1712 may typically include, for example, a BB processor
1713 and an RF circuit 1714. The BB processor 1713 may perform, for
example, encoding/decoding, modulating/demodulating, and
multiplexing/demultiplexing, and performs various types of signal
processing for wireless communication. Meanwhile, the RF circuit
1714 may include, for example, a mixer, a filter, and an amplifier,
and transmits and receives wireless signals via the antenna 1716.
The wireless communication interface 1712 may be a chip module
having the BB processor 1713 and the RF circuit 1714 integrated
thereon. As shown in FIG. 17, the wireless communication interface
1712 may include multiple BB processors 1713 and multiple RF
circuits 1714. Although FIG. 17 shows the example in which the
wireless communication interface 1712 includes the multiple BB
processors 1713 and the multiple RF circuits 1714, the wireless
communication interface 1712 may also include a single BB processor
1713 or a single RF circuit 1714.
[0220] Furthermore, in addition to a cellular communication scheme,
the wireless communication interface 1712 may support another type
of wireless communication scheme such as a short-distance wireless
communication scheme, a near field communication scheme, and a
wireless local area network (LAN) scheme. In this case, the
wireless communication interface 1712 may include the BB processor
1713 and the RF circuit 1714 for each wireless communication
scheme.
[0221] Each of the antenna switches 1715 switches connection
destinations of the antennas 1716 among multiple circuits (such as
circuits for different wireless communication schemes) included in
the wireless communication interface 1712.
[0222] Each of the antennas 1716 includes a single or multiple
antenna elements (such as multiple antenna elements included in an
MIMO antenna), and is used for the wireless communication interface
1712 to transmit and receive wireless signals. As shown in FIG. 17,
the smart phone 1700 may include the multiple antennas 1716.
Although FIG. 17 shows the example in which the smart phone 1700
includes the multiple antennas 1716, the smart phone 1700 may also
include a single antenna 1716.
[0223] Furthermore, the smart phone 1700 may include the antenna
1716 for each wireless communication scheme. In this case, the
antenna switches 1715 may be omitted from the configuration of the
smart phone 1700.
[0224] The bus 1717 connects the processor 1701, the memory 1702,
the storage 1703, the external connection interface 1704, the
camera 1706, the sensor 1707, the microphone 1708, the input device
1709, the display device 1710, the speaker 1711, the wireless
communication interface 1712, and the auxiliary controller 1719 to
each other. The battery 1718 supplies power to blocks of the smart
phone 1700 shown in FIG. 17 via feeder lines that are partially
shown as dashed lines in the FIG. 17. The auxiliary controller 1719
operates a minimum necessary function of the smart phone 1700, for
example, in a sleep mode.
[0225] In the smart phone 1700 shown in FIG. 17, the determination
1010, the generation unit 1020, the configuration unit 1040, the
detection unit 1050, the uplink information generation unit 1060,
the switching unit 1070 and the indication information generation
unit 1080 described in FIG. 10 may be implemented by the processor
1701 and the auxiliary controller 1719. At least part of the
functions may be implemented by the professor 1701 or the auxiliary
controller 1719. For example, the professor 1701 or the auxiliary
controller 1719 may perform the following functions: determining
that other user equipment shares a COT of the smart phone 1700,
generating time domain resource indication information, determining
frequency domain resources for transmitting uplink information,
performing the channel detection process, generating uplink
information, switching a BWP, and generating indicating information
indicating channel conditions of a BWP before being switched, by
executing instructions stored in the memory 1702 or the storage
1703.
[0226] (Second Application Example)
[0227] FIG. 18 is a block diagram showing a schematic configuration
example of a car navigation apparatus 1820 to which the technology
of the present disclosure may be applied. The car navigation
apparatus 1820 includes a processor 1821, a memory 1822, a global
positioning system (GPS) module 1824, a sensor 1825, a data
interface 1826, a content player 1827, a storage medium interface
1828, an input device 1829, a display device 1830, a speaker 1831,
a wireless communication interface 1833, one or more antenna
switches 1836, one or more antennas 1837, and a battery 1838.
[0228] The processor 1821 may be, for example, a CPU or a SoC, and
controls a navigation function and another function of the car
navigation apparatus 1820. The memory 1822 includes a RAM and a
ROM, and stores a program executed by the processor 1821 and
data.
[0229] The GPS module 1824 determines a position (such as latitude,
longitude, and altitude) of the car navigation apparatus 1820 by
using GPS signals received from a GPS satellite. The sensor 1825
may include a group of sensors such as a gyro sensor, a geomagnetic
sensor, and an air pressure sensor. The data interface 1826 is
connected to, for example, an in-vehicle network 1841 via a
terminal that is not shown, and acquires data (such as vehicle
speed data) generated by the vehicle.
[0230] The content player 1827 reproduces content stored in a
storage medium (such as a CD and a DVD) that is inserted into the
storage medium interface 1828. The input device 1829 includes, for
example, a touch sensor configured to detect touch onto a screen of
the display device 1830, a button or a switch, and receives an
operation or information inputted from a user. The display device
1830 includes a screen such as a LCD or an OLED display, and
displays an image of the navigation function or content that is
reproduced. The speaker 1831 outputs sounds of the navigation
function or the content that is reproduced.
[0231] The wireless communication interface 1833 supports any
cellular communication scheme (such as LTE and LTE-Advanced), and
performs wireless communication. The wireless communication
interface 1833 may typically include, for example, a BB processor
1834 and an RF circuit 1835. The BB processor 1834 may perform, for
example, encoding/decoding, modulating/demodulating, and
multiplexing/demultiplexing, and performs various types of signal
processing for wireless communication. Meanwhile, the RF circuit
1835 may include, for example, a mixer, a filter, and an amplifier,
and transmits and receives wireless signals via the antenna 1837.
The wireless communication interface 1833 may also be a chip module
having the BB processor 1834 and the RF circuit 1835 integrated
thereon. As shown in FIG. 18, the wireless communication interface
1833 may include the multiple BB processors 1834 and the multiple
RF circuits 1835. Although FIG. 18 shows the example in which the
wireless communication interface 1833 includes the multiple BB
processors 1834 and the multiple RF circuits 1835, the wireless
communication interface 1833 may also include a single BB processor
1834 or a single RF circuit 1835.
[0232] Furthermore, in addition to the cellular communication
scheme, the wireless communication interface 1833 may support
another type of wireless communication scheme such as a
short-distance wireless communication scheme, a near field
communication scheme, and a wireless LAN scheme. In this case, the
wireless communication interface 1833 may include the BB processor
1834 and the RF circuit 1835 for each wireless communication
scheme.
[0233] Each of the antenna switches 1836 switches connection
destinations of the antennas 1837 among multiple circuits (such as
circuits for different wireless communication schemes) included in
the wireless communication interface 1833.
[0234] Each of the antennas 1837 includes a single or multiple
antenna elements (such as multiple antenna elements included in an
MIMO antenna), and is used for the wireless communication interface
1833 to transmit and receive wireless signals. As shown in FIG. 18,
the car navigation apparatus 1820 may include the multiple antennas
1837. Although FIG. 18 shows the example in which the car
navigation apparatus 1820 includes the multiple antennas 1837, the
car navigation apparatus 1820 may also include a single antenna
1837.
[0235] Furthermore, the car navigation apparatus 1820 may include
the antenna 1837 for each wireless communication scheme. In this
case, the antenna switches 1836 may be omitted from the
configuration of the car navigation apparatus 1820.
[0236] The battery 1838 supplies power to blocks of the car
navigation apparatus 1820 shown in FIG. 18 via feeder lines that
are partially shown as dashed lines in the FIG. 18. The battery
1838 accumulates power supplied from the vehicle.
[0237] In the car navigation apparatus 1820 shown in FIG. 18, the
determination unit 1010, the generation unit 1020, the
configuration unit 1040, the detection unit 1050, the uplink
information generation unit 1060, the switching unit 1070, and the
instruction information generation unit 1080 described in FIG. 10
may be implemented by the processor 1821. At least part of the
functions may be implemented by the processor 1821. For example,
the processor 1821 may perform the following functions: determining
that other user equipment shares a COT of the car navigation
apparatus 1820, generating time domain resource indication
information, determining frequency domain resource for transmitting
uplink information, performing the channel detection process,
generating uplink information, switching a BWP, and generating
indication information indicating channel conditions of a BWP
before being switched by executing the instructions stored in the
memory 1822.
[0238] The technology of the present disclosure may also be
implemented as an in-vehicle system (or a vehicle) 1840 including
one or more blocks of the car navigation apparatus 1820, the
in-vehicle network 1841 and a vehicle module 1842. The vehicle
module 1842 generates vehicle data (such as a vehicle speed, an
engine speed or failure information), and outputs the generated
data to the in-vehicle network 1841.
[0239] The preferred embodiments of the present disclosure are
described above with reference to the drawings. The present
disclosure is not limited to the above embodiments. Those skilled
in the art may make various changes and modifications within the
scope of the appended claims. It should be understood that such
changes and modifications should fall within the technical scope of
the present disclosure.
[0240] For example, in the functional block diagrams shown in the
drawings, a unit shown in dotted lines indicates that the
functional unit is optional in the device, and optional functional
units may be combined in an appropriate way to implement a required
function.
[0241] For example, in the above embodiments, multiple functions in
one unit may be implemented by independent devices. Alternatively,
in the above embodiments, multiple functions in multiple units may
be respectively implemented by independent devices. In addition,
one of the above functions may be implemented by multiple units.
Needless to say, such configuration is within the technical scope
of the present disclosure.
[0242] In the present disclosure, steps described in the flow
charts are not limited to be performed in a chronological order,
but may also be performed in parallel or independently rather than
necessarily being in the time order. In addition, in a case that
the steps are performed in the chronological order, needless to
say, the order may also be changed appropriately.
[0243] Although the embodiments of the present disclosure are
described above in conjunction with the drawings, it should be
understood that the embodiments are only used to illustrate the
present disclosure rather than limit the present disclosure. For
those skilled in the art, various changes and modifications may be
made for the embodiments without departing from the essence and
scope of the present disclosure. Therefore, the scope of the
present disclosure is defined only by appended claims and
equivalent meaning thereof.
* * * * *