U.S. patent application number 17/534433 was filed with the patent office on 2022-03-17 for radio communication method, terminal device and network device.
The applicant listed for this patent is GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.. Invention is credited to Hai TANG.
Application Number | 20220086714 17/534433 |
Document ID | / |
Family ID | 1000005990226 |
Filed Date | 2022-03-17 |
United States Patent
Application |
20220086714 |
Kind Code |
A1 |
TANG; Hai |
March 17, 2022 |
RADIO COMMUNICATION METHOD, TERMINAL DEVICE AND NETWORK DEVICE
Abstract
Disclosed are a radio communication method, a terminal device
and a network device. The method comprises: a terminal device
acquiring a mobility control parameter for executing cell selection
and re-selection in an inactive state. The method, the terminal
device and the network device of the embodiments of the present
application facilitate controlling the mobility of a terminal
device in an inactive state.
Inventors: |
TANG; Hai; (Dongguan,
CN) |
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Applicant: |
Name |
City |
State |
Country |
Type |
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. |
Dongguan |
|
CN |
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|
Family ID: |
1000005990226 |
Appl. No.: |
17/534433 |
Filed: |
November 23, 2021 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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16689844 |
Nov 20, 2019 |
11218927 |
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17534433 |
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PCT/CN2018/076670 |
Feb 13, 2018 |
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16689844 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 36/08 20130101;
H04B 7/0626 20130101; H04W 76/27 20180201; H04W 36/14 20130101;
H04B 7/18541 20130101; H04W 36/32 20130101; H04B 7/088 20130101;
H04W 36/0072 20130101; H04W 36/00837 20180801; H04B 7/0413
20130101; H04B 7/0617 20130101; H04W 36/0016 20130101; H04B 7/18504
20130101; H04W 36/00 20130101; H04W 76/30 20180201; H04W 16/28
20130101; H04W 36/06 20130101; H04B 7/0452 20130101 |
International
Class: |
H04W 36/00 20060101
H04W036/00; H04W 76/30 20060101 H04W076/30; H04W 76/27 20060101
H04W076/27; H04W 36/32 20060101 H04W036/32; H04W 36/06 20060101
H04W036/06; H04W 36/08 20060101 H04W036/08; H04W 36/14 20060101
H04W036/14; H04W 16/28 20060101 H04W016/28; H04B 7/185 20060101
H04B007/185; H04B 7/0413 20060101 H04B007/0413; H04B 7/06 20060101
H04B007/06; H04B 7/08 20060101 H04B007/08 |
Claims
1. A method for wireless communication, comprising: obtaining, by a
terminal device, a mobility control parameter for performing cell
reselection in an inactive state; and receiving, by the terminal
device, indication information sent by a network device when the
terminal device returns from the inactive state to an idle state,
wherein the indication information is used to indicate the mobility
control parameter used when the terminal device is in the idle
state, and the mobility control parameter used when the terminal
device is in the idle state is the mobility control parameter
configured for the inactive state; and wherein the indication
information is carried in a system broadcast message.
2. The method according to claim 1, wherein the obtaining, by the
terminal device, the mobility control parameter for performing cell
reselection in the inactive state comprises: obtaining, by the
terminal device, a mobility control parameter configured for the
inactive state from RRC dedicated signaling sent by the network
device.
3. The method according to claim 2, wherein the obtaining, by the
terminal device, the mobility control parameter for performing cell
reselection in the inactive state comprises: receiving, by the
terminal device, a radio resource control (RRC) connection release
message sent by the network device, wherein the RRC connection
release message is used to instruct the terminal device to enter
the inactive state, and the RRC connection release message carries
the mobility control parameter; and obtaining, by the terminal
device, the mobility control parameter configured for the inactive
state from the RRC connection release message.
4. The method according to claim 1, wherein the mobility control
parameter comprises at least one of following parameters: a
decision parameter of a mobile state of the terminal device, a
scaling parameter of each parameter of the mobile state of the
terminal device, and a frequency-based cell reselection priority
parameter.
5. The method according to claim 3, the RRC connection release
message comprises an indication or a release cause value for
instructing the terminal device to enter the inactive state.
6. A method for wireless communication, comprising: configuring for
a terminal device, by a network device, a mobility control
parameter for an inactive state; and sending, by the network
device, indication information to the terminal device, wherein the
indication information is used to indicate the mobility control
parameter used when the terminal device returns from the inactive
state to an idle state, and the mobility control parameter used
when the terminal device returns from the inactive state to the
idle state is the mobility control parameter configured for the
inactive state; and wherein the indication information is carried
in a system broadcast message.
7. The method according to claim 6, wherein the configuring for the
terminal device, by the network device, the mobility control
parameter for the inactive state comprises: sending, by the network
device, the mobility control parameter for the inactive state to
the terminal device through radio resource control (RRC) dedicated
signaling or a system broadcast message.
8. The method according to claim 7, wherein the RRC dedicated
signaling is an RRC connection release message, and the RRC
connection release message is used to instruct the terminal device
to enter the inactive state.
9. The method according to claim 6, wherein the mobility control
parameter comprises at least one of following parameters: a
decision parameter of a mobile state of the terminal device, a
scaling parameter of each parameter of a mobile state of the
terminal device, and a frequency-based cell reselection priority
parameter.
10. The method according to claim 8, wherein the RRC connection
release message comprises an indication or a release cause value
for instructing the terminal device to enter the inactive
state.
11. A terminal device, comprising: a memory; a processor; an input
interface; and an output interface; wherein the memory, the
processor, the input interface, and the output interface are
connected by a bus system, the memory is for storing instructions,
and the processor is for executing the instructions stored in the
memory to: obtain a mobility control parameter for performing cell
reselection in an inactive state; and receive indication
information sent by a network device when the terminal device
returns from the inactive state to an idle state, wherein the
indication information is used to indicate the mobility control
parameter used when the terminal device is in the idle state, and
the mobility control parameter used when the terminal device is in
the idle state is the mobility control parameter configured for the
inactive state; and wherein the indication information is carried
in a system broadcast message.
12. The terminal device according to claim 11, wherein the
processor is further configured to: obtain a mobility control
parameter configured for the inactive state from RRC dedicated
signaling sent by the network device.
13. The terminal device according to claim 12, wherein the
processor is further configured to: receive a radio resource
control (RRC) connection release message sent by the network
device, wherein the RRC connection release message is used to
instruct the terminal device to enter the inactive state, and the
RRC connection release message carries the mobility control
parameter; and obtain the mobility control parameter configured for
the inactive state from the RRC connection release message.
14. The terminal device according to claim 11, wherein the mobility
control parameter comprises at least one of following parameters: a
decision parameter of a mobile state of the terminal device, a
scaling parameter of each parameter of a mobile state of the
terminal device, and a frequency-based cell reselection priority
parameter.
15. The terminal device according to claim 13, wherein the RRC
connection release message comprises an indication or a release
cause value for instructing the terminal device to enter the
inactive state.
16. A network device, comprising: a memory; a processor; an input
interface; and an output interface; wherein the memory, the
processor, the input interface, and the output interface are
connected by a bus system, the memory is for storing instructions,
and the processor is for executing the instructions stored in the
memory to: configure for a terminal device a mobility control
parameter for an inactive state; and send indication information to
the terminal device, wherein the indication information is used to
indicate the mobility control parameter used when the terminal
device returns from the inactive state to an idle state, and the
mobility control parameter used when the terminal device returns
from the inactive state to the idle state is the mobility control
parameter configured for the inactive state; and wherein the
indication information is carried in a system broadcast
message.
17. The network device according to claim 16, wherein the processor
is further configured to: send the mobility control parameter for
the inactive state to the terminal device through radio resource
control (RRC) dedicated signaling or a system broadcast
message.
18. The network device according to claim 17, wherein the RRC
dedicated signaling is an RRC connection release message, and the
RRC connection release message is used to instruct the terminal
device to enter the inactive state.
19. The network device according to claim 16, wherein the mobility
control parameter comprises at least one of following parameters: a
decision parameter of a mobile state of the terminal device, a
scaling parameter of each parameter of a mobile state of the
terminal device, and a frequency-based cell reselection priority
parameter.
20. The network device according to claim 18, wherein the RRC
connection release message comprises an indication or a release
cause value for instructing the terminal device to enter the
inactive state.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation of U.S. application Ser.
No. 16/689,844, filed Nov. 20, 2019, which is a continuation of
International Application No. PCT/CN2018/076670, filed Feb. 13,
2018, the entire disclosures of which are incorporated herein by
reference.
TECHNICAL FIELD
[0002] Embodiments of the present application relate to the field
of communications, and more particularly, to a method for wireless
communication, a terminal device, and a network device.
BACKGROUND
[0003] In New Radio (NR), for purposes of reducing new radio
signaling, recovering wireless connections quickly and recovering
data services quickly, a new Radio Resource Control (RRC) state,
namely an RRC inactive (RRC_INACTIVE) state, is defined. How to
perform cell selection and reselection in the RRC inactive state by
a terminal device is a problem to be solved.
SUMMARY
[0004] In view of this, embodiments of the present application
provide a method, a terminal device, and a network device for
wireless communication, which are advantageous for controlling
mobility of a terminal device in an inactive state.
[0005] In a first aspect, there is provided a method for wireless
communication, including: obtaining, by a terminal device, a
mobility control parameter for performing cell selection and
reselection in an inactive state.
[0006] In a possible implementation manner, the obtaining, by a
terminal device, the mobility control parameter for performing cell
selection and reselection in an inactive state includes: obtaining,
by the terminal device, a mobility control parameter configured for
the inactive state from RRC dedicated signaling sent by a network
device.
[0007] In a possible implementation manner, the method further
includes: receiving, by the terminal device, a radio resource
control (RRC) connection release message sent by the network
device, wherein the RRC connection release message is used to
instruct the terminal device to enter the inactive state, and the
RRC connection release message carries the mobility control
parameter. The obtaining, by the terminal device, the mobility
control parameter configured for the inactive state from RRC
dedicated signaling sent by a network device includes: obtaining,
by the terminal device, the mobility control parameter configured
for the inactive state from the RRC connection release message.
[0008] In a possible implementation, obtaining, by the terminal
device, the mobility control parameter for recovering a radio
resource control (RRC) connection in the inactive state, includes:
obtaining, by the terminal device, the mobility control parameter
from a system broadcast message.
[0009] In a possible implementation manner, the method further
includes: if the terminal device obtains the mobility control
parameter configured for the inactive state from the system
broadcast message, performing cell selection and reselection by
using the mobility control parameter configured for the inactive
state when the terminal device is in the inactive state; if the
terminal device does not obtain the mobility control parameter
configured for the inactive state from the system broadcast
message, performing cell selection and reselection by using the
mobility control parameter configured for an idle state when the
terminal device is in the inactive state.
[0010] In a possible implementation manner, the mobility control
parameter includes at least one of the following parameters: a
decision parameter of a mobile state of the terminal device, a
scaling parameter of each parameter of a mobile state of the
terminal device, and a frequency-based cell reselection priority
parameter.
[0011] In a possible implementation manner, the method further
includes: receiving, by the terminal device, indication information
sent by the network device when the terminal device returns from
the inactive state to the idle state, wherein the indication
information is used to indicate the mobility control parameter used
when the terminal device is in the idle state, and the mobility
control parameter used when the terminal device is in the idle
state is the mobility control parameter configured for the inactive
state or the mobility control parameters configured for the idle
state.
[0012] In a possible implementation manner, the indication
information is carried in a signaling indicating that the terminal
device transits from the inactive state to the idle state or a
system broadcast message.
[0013] In a second aspect, there is provided a method for wireless
communication, including: configuring, by a network device, a
mobility control parameter for an inactive state for a terminal
device; and sending, by the network device, the mobility control
parameter for the inactive state to the terminal device.
[0014] In a possible implementation manner, the sending, by the
network device, the mobility control parameter for the inactive
state to the terminal device includes: sending, by the network
device, the mobility control parameter for the inactive state to
the terminal device through a radio resource control (RRC)
dedicated signaling or a system broadcast message.
[0015] In a possible implementation manner, the RRC dedicated
signaling is an RRC connection release message, wherein the RRC
connection release message is used to instruct the terminal device
to enter the inactive state.
[0016] In a possible implementation, the method further includes:
sending, by the network device, indication information to the
terminal device when the terminal device returns from the inactive
state to the idle state, wherein the indication information is used
to indicate the mobility control parameter used when the terminal
device is in the idle state, and the mobility control parameter
used when the terminal device is in the idle state is the mobility
control parameter configured for the inactive state or the mobility
control parameter configured for the idle state.
[0017] In a possible implementation manner, the indication
information is carried in a signaling indicating that the terminal
device transits from the inactive state to the idle state or the
system broadcast message.
[0018] In a possible implementation manner, the mobility control
parameter includes at least one of the following parameters: a
decision parameter of a mobile state of the terminal device, a
scaling parameter of each parameter of a mobile state of the
terminal device, and a frequency-based cell reselection priority
parameter.
[0019] In a third aspect, a terminal device is provided for
performing the method of the above first aspect or any of the
possible implementations of the first aspect. In particular, the
terminal device includes units for performing the method of the
above first aspect or any of the possible implementations of the
first aspect.
[0020] In a fourth aspect, a network device is provided for
performing the method of the above second aspect or any of the
possible implementations of the second aspect. In particular, the
network device includes units for performing the method of the
above second aspect or any of the possible implementations of the
second aspect.
[0021] In a fifth aspect, there is provided a terminal device,
including: a memory, a processor, an input interface, and an output
interface. The memory, the processor, the input interface, and the
output interface are connected by a bus system. The memory is for
storing instructions, and the processor is for executing the
instructions stored in the memory to perform the method of the
above first aspect or any of the possible implementations of the
first aspect.
[0022] In a sixth aspect, there is provided a network device,
including: a memory, a processor, an input interface, and an output
interface. The memory, the processor, the input interface, and the
output interface are connected by a bus system. The memory is for
storing instructions, and the processor is for executing the
instructions stored in the memory to perform the method of the
above second aspect or any of the possible implementations of the
second aspect.
[0023] In a seventh aspect, a computer storage medium is provided
for storing computer software instructions used in the method of
the above first aspect or any of the possible implementations of
the first aspect or the method of the above second aspect or any of
the possible implementations of the second aspect in which a
program designed to perform the above aspects is included.
[0024] In an eighth aspect, a computer program product including
instructions is provided, when executed on a computer, the computer
is made to perform the method of the above first aspect or any of
the possible implementations of the first aspect or the method of
the above second aspect or any of the possible implementations of
the second aspect.
[0025] These and other aspects of the present application will be
more readily apparent from the following description of the
embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] FIG. 1 shows a schematic diagram of an application scenario
of an embodiment of the present application.
[0027] FIG. 2 shows a schematic block diagram of an EPS bearer
service architecture.
[0028] FIG. 3 shows a schematic block diagram of a method for
wireless communication of an embodiment of the present
application.
[0029] FIG. 4 shows another schematic block diagram of a method for
wireless communication of an embodiment of the present
application.
[0030] FIG. 5 shows a schematic block diagram of a terminal device
of an embodiment of the present application.
[0031] FIG. 6 shows a schematic block diagram of a network device
of an embodiment of the present application.
[0032] FIG. 7 shows another schematic block diagram of a terminal
device of an embodiment of the present application.
[0033] FIG. 8 shows another schematic block diagram of a network
device of an embodiment of the present application.
DETAILED DESCRIPTION
[0034] The technical solutions in the embodiments of the present
application will be clearly and completely described in the
following with reference to the drawings in the embodiments of the
present application.
[0035] It should be understood that the technical solutions of the
embodiments of the present application may be applied to various
communication systems, such as a Global System of Mobile
communication (GSM) system, a Code Division Multiple Access (CDMA)
system, and a Wideband Code Division Multiple Access (WCDMA)
system, a Long Term Evolution (LTE) system, a LTE Frequency
Division Duplex (FDD) system, a LTE Time Division Duplex (TDD), a
Universal Mobile Telecommunication System (UMTS), a Worldwide
Interoperability for Microwave Access (WiMAX), a New Radio (NR), a
future 5G system or the like.
[0036] In particular, the technical solutions of the embodiments of
the present application may be applied to various communication
systems based on non-orthogonal multiple access technology, such as
a Sparse Code Multiple Access (SCMA) system, and a Low Density
Signature (LDS) system, etc., and the SCMA system and the LDS
system may also be referred to as other names in the communication
field; further, the technical solutions of the embodiments of the
present application may be applied to a multi-carrier transmission
system using the non-orthogonal multiple access technology, such as
an Orthogonal Frequency Division Multiplexing (OFDM) system, a
Filter Bank Multi-Carrier (FBMC) system, a Generalized Frequency
Division Multiplexing (GFDM) system, a Filtered-OFDM (F-OFDM)
system, and the like using the non-orthogonal multiple access
technology.
[0037] A terminal device in the embodiments of the present
application may refer to user equipment (UE), an access terminal, a
subscriber unit, a subscriber station, a mobile station, a mobile
platform, a remote station, a remote terminal, a mobile device, a
user terminal, a terminal, a wireless communication device, a user
agent, or a user apparatus. The access terminal may be a cellular
phone, a cordless phone, a Session Initiation Protocol (SIP) phone,
a Wireless Local Loop (WLL) station, a Personal Digital Assistant
(PDA), a handheld device with a wireless communication capability,
a computing device or other processing devices connected to a
wireless modem, an in-vehicle device, a wearable device, a terminal
device in a future 5G network, or a terminal device in a future
evolution of a Public Land Mobile Network (PLMN), etc., which is
not limited in the embodiments of the present application.
[0038] The network device in the embodiments of the present
application may be a device for communicating with the terminal
device. The network device may be a Base Transceiver Station (BTS)
in the GSM or the CDMA, or a base station (NodeB, NB) in the WCDMA
system, or an Evolutional NodeB (eNB or eNodeB) in the LTE system,
or a wireless controller in a Cloud Radio Access Network (CRAN)
scenario, or the network device may be a relay station, an access
point, an in-vehicle device, a wearable device, and a network
device in a future 5G network or a network device in a future
evolved PLMN network, which is not limited in the embodiments of
the present application.
[0039] FIG. 1 is a schematic diagram of an application scenario of
an embodiment of the present application. A communication system in
FIG. 1 may include a terminal device 10 and a network device 20.
The network device 20 is configured to provide communication
service for the terminal device 10 and make the terminal device 10
access the core network. The terminal device 10 may access the
network by searching for a synchronization signal, a broadcast
signal, and the like transmitted by the network device 20, thereby
performing communication with the network. Arrows shown in FIG. 1
may represent uplink/downlink transmissions by cellular links
between the terminal device 10 and the network device 20.
[0040] In order to facilitate the understanding of the embodiments
of the present application, some elements in the Evolved Packet
System (EPS) bearer service architecture are briefly described in
conjunction with FIG. 2. As shown in FIG. 2, the network
architecture mainly includes an Evolved-Universal Mobile
Telecommunication System Terrestrial Radio Access Network (E-UTRAN)
and an Evolved Packet Core (EPC). The EPC includes a Serving
Gateway (S-GW) and a Packet Data Network Gateway (P-GW). In the EPS
bearer service architecture, the end-to-end service may be
decomposed into two parts: the EPS bearer and the external bearer.
one Evolved Radio Access Bearer (E-RAB) is used to transmit a
packet of one EPS bearer between the UE and the evolved EPC, and
the E-RAB and EPS bearer are in a one-to-one correspondence. One
radio bearer is used to transmit a packet of one E-RAB bearer
between the UE and the eNodeB, and the radio bearer and the
E-RAB/EPS bearer are in a one-to-one correspondence. One S1 bearer
is used to transmit a packet of one E-RAB bearer between the eNodeB
and the S-GW. One S5/S8 bearer is used to transmit a packet of one
EPS bearer between the S-GW and the P-GW, and the external bearer
is used to transmit information between the EPC and a peer
entity.
[0041] In the LTE system, the RRC state of the UE mainly includes
an RRC idle state and an RRC connection state. The RRC idle state
is such a state: there is an S5/S8 bearer, there is no radio bearer
and S1 bearer, the core network side reserves the UE context, the
eNodeB and the UE do not reserve each other's context, and the
terminal reserves an unique identifier (which is generally a
Temporary Mobile Subscriber Identity (TMSI)) within the Time
Advance (TA). The UE in the RRC idle state does not interact data
with the network, does not have a Discontinuous Reception (DRX)
process configured by a Non-access stratum (NAS), system
information broadcast and paging, neighbor cell measurement, and
the mobility of cell reselection, and does not have the behavior of
reporting a measurement report and the like. The RRC connection
state is such a state: there are the S5/S8 bearer, the S1 bearer,
and the radio bearer; the core network, eNodeB, and UE all reserve
corresponding contexts, and the eNodeB allocates an access stratum
(AS) identifier (usually a Cell Radio Network Temporary Identifier
(C-RNTI)). The UE in the RRC connection state may exchange data
with the network, and may have the DRX configured by the AS, the
mobility of the handover, and the behavior of reporting the channel
measurement to the network side and the like.
[0042] In the 5G system, a third state, that is, an RRC inactive
state, is introduced. The RRC inactive state is such a state: there
are the S5/S8 bearer, the S1 bearer, and a part of the radio
bearer, the core network, the eNodeB, and the UE all reserve the
corresponding context, and the eNodeB allocates the access stratum
AS identifier (usually a Resume identification (ID)). The UE in the
RRC inactive state has the mobility of cell reselection, has no
measurement report, and may perform small data transmission and
reception, and there may be DRX configured by the AS.
[0043] FIG. 3 shows a schematic block diagram of a method 100 for
wireless communication in accordance with an embodiment of the
present application. As shown in FIG. 3, the method 100 includes
some or all of the following.
[0044] In S110, the terminal device obtains a mobility control
parameter for performing cell selection and reselection in an
inactive state.
[0045] It should be understood that the inactive state involved in
the embodiments of the present application is also the above RRC
active state. The terminal device may obtain the mobility control
parameter for performing cell selection and reselection in the
inactive state, for example, through RRC dedicated signaling or a
system broadcast message. The mobility control parameter may
include at least one of the following parameters: a decision
parameter of a mobile state of the terminal device, a scaling
parameter of each parameter of a mobile state of the terminal
device, and a frequency-based cell reselection priority parameter.
The so called mobile state of the terminal device may be defined as
the number of cell reselections within a predetermined time, and
may include a high-speed mobile state, a medium-speed mobile state,
and a normal mobile state. The decision parameter of the mobile
state of the terminal device may be, for example, a time window
T.sub.CRmax for indicating that the terminal device enters the
medium-speed or high-speed mobile state decision, or a cell
reselection number threshold N.sub.CR_H for indicating the
high-speed mobile state decision, or a cell reselection number
threshold N.sub.CR_M for indicating the medium-speed mobile state
decision, or a time window T.sub.CRmaxHyst for indicating that the
terminal device leaves the medium-speed or high-speed mobile state
decision. The scaling parameter is some of the secondary parameters
used in the cell selection and reselection parameters, and in fact,
it is a value. Each parameter of the mobile state of the mobile
device may be multiplied by a scaling factor and then used in the
decision of cell selection or reselection to reduce the impact of
moving speed on the mobile performance of the mobile device. The
frequency-based cell reselection priority parameter refers to an
absolute priority between different frequencies, and is a parameter
needing to be considered by the terminal device when performing
cell selection and reselection.
[0046] Optionally, in the embodiments of the present application,
the obtaining, by the terminal device, the mobility control
parameter for performing cell selection and reselection in the
inactive state includes: obtaining, by the terminal device, the
mobility control parameter configured for the inactive state from
RRC dedicated signaling sent by a network device.
[0047] The network device may specifically configure a specific
mobility control parameter for the terminal device in the RRC
inactive state to perform cell selection and reselection when the
terminal device is in the RRC inactive state, and by configuring
the specific mobility control parameter for the terminal device in
the RRC inactive state, the mobility control of the terminal device
can be more accurate. The network device may indicate the mobility
control parameter to the terminal device through RRC dedicated
signaling.
[0048] Further, the terminal device may receive the radio resource
control RRC connection release message sent by the network device,
where the RRC connection release message is used to instruct the
terminal device to enter the inactive state, and the RRC connection
release message carries the mobility control parameter; the
terminal device may obtain the mobility control parameter
configured for the inactive state from the RRC connection release
message.
[0049] When the terminal device is in the RRC active state, if the
service is not performed temporarily, the network device may
instruct the terminal device to enter the inactive state. For
example, an indication or a release cause value may be added to the
RRC connection release message to instruct the terminal device to
enter the inactive state. Meanwhile, the mobility control parameter
for the inactive state configured by the network device for the
terminal device may be carried in the RRC connection release
message.
[0050] Optionally, in the embodiments of the present application,
the terminal device obtains the mobility control parameter for
recovering a radio resource control RRC connection in the inactive
state, including: obtaining, by the terminal device, the mobility
control parameter from a system broadcast message.
[0051] If the terminal device can obtain the mobility control
parameter from the RRC dedicated signaling, the terminal device may
perform cell selection and reselection using the mobility control
parameter obtained in the RRC dedicated signaling; and if the
terminal device cannot obtain the mobility control parameter from
the RRC dedicated signaling, the terminal device may perform cell
selection and reselection using the mobility control parameter
obtained from the system broadcast message.
[0052] Optionally, in the embodiments of the present application,
the method further includes: if the terminal device obtains the
mobility control parameter configured for the inactive state from
the system broadcast message, the mobility control parameter
configured for the inactive state is used to perform cell selection
and reselection when the terminal device is in the inactive state;
or if the terminal device does not obtain the mobility control
parameter configured for the inactive state from the system
broadcast message, the mobility control parameter configured for an
idle state is used to perform cell selection and reselection when
the terminal device is in the inactive state. Specifically, the
system broadcast may broadcast the mobility control parameter
configured for the idle state, and may also broadcast the mobility
control parameter configured for the inactive state.
[0053] Optionally, in the embodiments of the present application,
the method further includes: when the terminal device returns from
the inactive state to the idle state, the terminal device receives
indication information sent by the network device, where the
indication information is used to indicate the mobility control
parameter used when the terminal device is in the idle state, and
the mobility control parameter used when the terminal device is in
the idle state is the mobility control parameter configured for the
inactive state or the mobility control parameter configured for the
idle state.
[0054] When the terminal device returns from the inactive state to
the idle state, the network device may instruct the terminal device
to continue to use the mobility control parameter configured for
the inactive state or use the mobility control parameter configured
for the idle state. Specifically, the indication information is
carried in a signaling indicating that the terminal device transits
from the inactive state to the idle state or the system broadcast
message.
[0055] FIG. 4 shows a schematic block diagram of a method 200 for
wireless communication in an embodiment of the present application.
As shown in FIG. 4, the method 200 includes some or all of the
following.
[0056] In S210, the network device configures the mobility control
parameter for the inactive state for the terminal device.
[0057] Therefore, the method of the embodiments of the present
application is advantageous for controlling the mobility of the
terminal device in an inactive state.
[0058] Optionally, in the embodiments of the present application,
the configuring, by a network device, the mobility control
parameter for an inactive state for a terminal device includes:
sending, by the network device, the mobility control parameter for
the inactive state to the terminal device through a radio resource
control RRC dedicated signaling or a system broadcast message.
[0059] Optionally, in the embodiments of the present application,
the RRC dedicated signaling is an RRC connection release message,
and the RRC connection release message is used to instruct the
terminal device to enter the inactive state.
[0060] Optionally, in the embodiments of the present application,
the method further includes: when the terminal device returns from
an inactive state to an idle state, the network device sends
indication information to the terminal device, where the indication
information is used to indicate the mobility control parameter used
when the terminal device is in the idle state, and the mobility
control parameter used when the terminal device is in the idle
state is the mobility control parameter configured for the inactive
state or the mobility control parameter configured for the idle
state.
[0061] Optionally, in the embodiments of the present application,
the indication information is carried in a signaling indicating
that the terminal device transits from the inactive state to the
idle state or the system broadcast message.
[0062] Optionally, in the embodiments of the present application,
the mobility control parameter includes at least one of the
following parameters: a decision parameter of a mobile state of the
terminal device, a scaling parameter of each parameter of a mobile
state of the terminal device, and a frequency-based cell
reselection priority parameter.
[0063] It should also be understood that the interaction between
the network device and the terminal device and related
characteristics, functions, and the like described at the network
device correspond to related characteristics and functions of the
terminal device. That is, what message is sent by the terminal
device to the network device, and the network device receives the
corresponding message from the terminal device.
[0064] It should also be understood that, in various embodiments of
the present application, the number of the sequence numbers of the
above processes does not mean the order of execution, and the order
of execution of each process should be determined by its function
and internal logic, and should not be construed as limiting the
implementation process of the embodiments of the present
application.
[0065] It should also be understood that the term "and/or" herein
is merely an association describing the associated object,
indicating that there may be three relationships. For example, A
and/or B may indicate that there exist three cases: A exists
separately, both A and B exist, and B exists separately. In
addition, the character "/" herein generally indicates that the
associated objects are in an "or" relationship.
[0066] The method for wireless communication according to the
embodiments of the present application is described in detail
above. Hereinafter, an apparatus for wireless communication
according to an embodiment of the present application will be
described with reference to FIG. 5 to FIG. 8. The technical
features described in the method embodiments are applicable to the
following apparatus embodiment.
[0067] FIG. 5 shows a schematic block diagram of a terminal device
300 according to an embodiment of the present application. As shown
in FIG. 5, the terminal device 300 includes:
[0068] an obtaining unit 310 configured to obtain a mobility
control parameter for performing cell selection and reselection in
an inactive state.
[0069] Therefore, the terminal device in the embodiment of the
present application is advantageous for controlling the mobility of
the terminal device in an inactive state.
[0070] Optionally, in the embodiment of the present application,
the obtaining unit is specifically configured to: obtain the
mobility control parameter configured for the inactive state from
the RRC dedicated signaling sent by the network device.
[0071] Optionally, in the embodiment of the present application,
the terminal device further includes: a first receiving unit,
configured to receive a radio resource control RRC connection
release message sent by the network device, where the RRC
connection release message is used to instruct the terminal device
to enter the inactive state, and the RRC connection release message
carries the mobility control parameter; the obtaining unit is
specifically configured to: obtain the mobility control parameter
configured for the inactive state from the RRC connection release
message.
[0072] Optionally, in the embodiment of the present application,
the obtaining unit is specifically configured to: obtain the
mobility control parameter from a system broadcast message.
[0073] Optionally, in the embodiment of the present application,
the terminal device further includes: a processing unit, configured
to: if the mobility control parameter configured for the inactive
state is obtained from the system broadcast message, perform cell
selection and reselection by using the mobility control parameter
configured for the inactive state when the terminal device is in
the inactive state; if the mobility control parameter configured
for the inactive state is not obtained from the system broadcast
message, perform cell selection and reselection by using the
mobility control parameter configured for an idle state when the
terminal device is in the inactive state.
[0074] Optionally, in the embodiment of the present application,
the mobility control parameter includes at least one of the
following parameters: a decision parameter of a mobile state of the
terminal device, a scaling parameter of each parameter of a mobile
state of the terminal device, and a frequency-based cell
reselection priority parameter.
[0075] Optionally, in the embodiment of the present application,
the terminal device further includes: a second receiving unit,
configured to receive indication information sent by the network
device when the terminal device returns from the inactive state to
the idle state, where the indication information is used to
indicate the mobility control parameter used when the terminal
device is in the idle state, and the mobility control parameter
used when the terminal device is in the idle state is the mobility
control parameter configured for the inactive state or the mobility
control parameter configured for the idle state.
[0076] Optionally, in the embodiment of the present application,
the indication information is carried in a signaling indicating
that the terminal device transits from the inactive state to the
idle state or the system broadcast message.
[0077] It should be understood that the terminal device 300
according to the embodiment of the present application may
correspond to the terminal device in the method embodiment of the
present application, and the above and other operations and/or
functions of the respective units in the terminal device 300
respectively implement the corresponding process of the terminal
device in the method of FIG. 3, which will not be repeated here for
the sake of brevity.
[0078] FIG. 6 shows a schematic block diagram of a network device
400 of an embodiment of the present application. As shown in FIG.
6, the network device 400 includes:
[0079] a configuration unit 410 configured to configure, for the
terminal device, a mobility control parameter for the inactive
state.
[0080] Therefore, the network device in the embodiment of the
present application is advantageous for controlling the mobility of
the terminal device in an inactive state.
[0081] Optionally, in the embodiment of the present application,
the configuration unit is specifically configured to: send the
mobility control parameter for the inactive state to the terminal
device through a radio resource control RRC dedicated signaling or
a system broadcast message.
[0082] Optionally, in the embodiment of the present application,
the RRC dedicated signaling is an RRC connection release message,
and the RRC connection release message is used to instruct the
terminal device to enter the inactive state.
[0083] Optionally, in the embodiment of the present application,
the network device further includes: a sending unit, configured to
send indication information to the terminal device when the
terminal device returns from an inactive state to an idle state,
where the indication information is used to indicate the mobility
control parameter used when the terminal device is in the idle
state, and the mobility control parameter used when the terminal
device is in the idle state is the mobility control parameter
configured for the inactive state or the mobility control parameter
configured for the idle state.
[0084] Optionally, in the embodiment of the present application,
the indication information is carried in a signaling indicating
that the terminal device transits from the inactive state to the
idle state or the system broadcast message.
[0085] Optionally, in the embodiment of the present application,
the mobility control parameters include at least one of the
following parameters: a decision parameter of a mobile state of the
terminal device, a scaling parameter of each parameter of a mobile
state of the terminal device, and a frequency-based cell
reselection priority parameter.
[0086] It should be understood that the network device 400
according to the embodiment of the present application may
correspond to the network device in the method embodiment of the
present application, and the above and other operations and/or
functions of the respective units in the network device 400
respectively implement the corresponding process of the network
device in the method of FIG. 4, which will not be repeated here for
the sake of brevity.
[0087] As shown in FIG. 7, the embodiment of the present
application further provides a terminal device 500, which may be
the terminal device 300 in FIG. 5, and may be used to execute the
content of the terminal device corresponding to the method 100 in
FIG. 3. The terminal device 500 includes: an input interface 510,
an output interface 520, a processor 530, and a memory 540. The
input interface 510, the output interface 520, the processor 530,
and the memory 540 may be connected by a bus system. The memory 540
is for storing programs, instructions or codes. The processor 530
is configured to execute the programs, the instructions or the
codes in the memory 540 to control the input interface 510 to
receive a signal, control the output interface 520 to send a
signal, and complete the operations in the foregoing method
embodiments.
[0088] Therefore, the terminal device in the embodiment of the
present application is advantageous for controlling the mobility of
the terminal device in an inactive state.
[0089] It should be understood that in the embodiment of the
present application, the processor 530 may be a Central Processing
Unit (CPU), and the processor 530 may also be other general purpose
processors, digital signal processors (DSPs), application specific
integrated circuits (ASICs), field programmable gate arrays (FPGAs)
or other programmable logic devices, discrete gates or transistor
logic devices, discrete hardware components, etc. The general
purpose processor may be a microprocessor, or the processor may
also be any conventional processor, etc.
[0090] The memory 540 may include a read only memory and a random
access memory, and provides instructions and data to the processor
530. A portion of the memory 540 may also include a non-volatile
random access memory. For example, the memory 540 may also store
information of the device type.
[0091] In the implementation process, each step of the foregoing
method may be completed by an integrated logic circuit of hardware
in the processor 530 or an instruction in a form of software. The
method disclosed in the embodiment of the present application may
be directly implemented by the hardware processor, or may be
performed by a combination of hardware and software modules in the
processor. The software module may be located in a mature storage
medium in the art such as a random access memory, a flash memory, a
read only memory, a programmable read only memory or an
electrically erasable programmable memory, a register, and the
like. The storage medium is located in the memory 540, and the
processor 530 reads the information in the memory 540 and completes
the steps of the above method in combination with its hardware. To
avoid repetition, it will not be described in detail here.
[0092] In a specific embodiment, the first receiving unit and the
second receiving unit in the terminal device 300 may be implemented
by the input interface 510 in FIG. 7. The obtaining unit and
processing unit in the terminal device 300 may be implemented by
the processor 530 in FIG. 7.
[0093] As shown in FIG. 8, the embodiment of the present
application further provides a network device 600, which may be the
network device 400 in FIG. 6, and may be used to execute the
content of the network device corresponding to the method 200 in
FIG. 4. The network device 600 includes an input interface 610, an
output interface 620, a processor 630, and a memory 640. The input
interface 610, the output interface 620, the processor 630, and the
memory 640 may be connected by a bus system. The memory 640 is for
storing programs, instructions or codes. The processor 630 is
configured to execute the programs, the instructions or the codes
in the memory 640 to control the input interface 610 to receive a
signal, control the output interface 620 to send a signal, and
complete the operations in the foregoing method embodiments.
[0094] Therefore, the network device in the embodiment of the
present application is advantageous for controlling the mobility of
the terminal device in an inactive state.
[0095] It should be understood that in the embodiment of the
present application, the processor 630 may be a Central Processing
Unit (CPU), and the processor 530 may also be other general purpose
processors, digital signal processors (DSPs), application specific
integrated circuits (ASICs), field programmable gate arrays (FPGAs)
or other programmable logic devices, discrete gates or transistor
logic devices, discrete hardware components, etc. The general
purpose processor may be a microprocessor, or the processor may
also be any conventional processor, etc.
[0096] The memory 640 may include a read only memory and a random
access memory, and provides instructions and data to the processor
630. A portion of the memory 640 may also include a non-volatile
random access memory. For example, the memory 640 may also store
information of the device type.
[0097] In the implementation process, each step of the foregoing
method may be completed by an integrated logic circuit of hardware
in the processor 630 or an instruction in a form of software. The
method disclosed in the embodiment of the present application may
be directly implemented by the hardware processor, or may be
performed by a combination of hardware and software modules in the
processor. The software module may be located in a mature storage
medium in the art such as a random access memory, a flash memory, a
read only memory, a programmable read only memory or an
electrically erasable programmable memory, a register, and the
like. The storage medium is located in the memory 640, and the
processor 630 reads the information in the memory 640 and completes
the steps of the above method in combination with its hardware. To
avoid repetition, it will not be described in detail here.
[0098] In a specific implementation, the configuration unit in
network device 400 may be implemented by the processor 630 in FIG.
8. The sending unit in network device 400 may be implemented by the
output interface 620 in FIG. 8.
[0099] Those ordinary skilled in the art will appreciate that the
exemplary units and the steps of the algorithm described in
connection with the embodiments disclosed herein may be implemented
in electronic hardware or a combination of computer software and
electronic hardware. Whether these functions are performed in
hardware or software depends on the specific application and design
constraints of the technical solution. A skilled person may use
different methods to implement the described functionality for each
particular application, but such implementation should not be
considered beyond the scope of this application.
[0100] A skilled person in the art can clearly understand that for
the convenience and brevity of the description, the specific
working process of the system, the apparatus and the unit described
above may refer to the corresponding process in the foregoing
method embodiment, and details are not described herein again.
[0101] In the several embodiments provided by the present
application, it should be understood that the disclosed systems,
apparatuses, and methods may be implemented in other manners. For
example, the apparatus embodiments described above are merely
illustrative. For example, the division of the unit is only a
logical function division. In actual implementation, there may be
another division manner, for example, multiple units or components
may be combined or may be integrated into another system, or some
features may be ignored or not executed. In addition, the mutual
coupling or direct coupling or communication connection shown or
discussed may be an indirect coupling or communication connection
through some interface, apparatus or unit, and may be in an
electrical, mechanical or other form.
[0102] The units described as separate components may or may not be
physically separated, and the components of the displayed units may
or may not be physical units, that is, may be located in one place,
or may be distributed to multiple network units. Some or all of the
units may be selected according to actual needs to achieve the
purpose of the solution of the embodiment.
[0103] In addition, individual functional units in individual
embodiments of the present application may be integrated into one
processing unit, or individual units may exist physically
separately, or two or more units may be integrated into one
unit.
[0104] This functionality, if implemented as a software functional
unit and sold or used as a standalone product, may be stored on a
computer readable storage medium. Based on such understanding, the
technical solution of the present application or the part
contributing to the prior art or the part of the technical solution
may be embodied in the form of a software product, which is stored
in a storage medium, including instructions to cause a computer
device (which may be a personal computer, a server, or a network
device, etc.) to perform all or part of the steps of the method of
various embodiments of the present application. The foregoing
storage medium includes: a U disk, a mobile hard disk, a Read-Only
Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an
optical disk, and other medium which may store program code.
[0105] The above is only the specific embodiments of the present
application, and the protection scope of the present application is
not limited thereto. Any person skilled in the art can easily think
of changes or replacements within the technical scope disclosed in
the present application, which should be covered in the scope of
protection of this application. Therefore, the scope of protection
of the embodiments of the present application should be determined
by the protection scope of the claims.
* * * * *