U.S. patent application number 15/680642 was filed with the patent office on 2017-11-30 for method and device for resource configuration.
The applicant listed for this patent is Huawei Technologies Co., Ltd.. Invention is credited to Yongqiang GAO, Zhenxing HU, Yue LI, Wen ZHANG.
Application Number | 20170347345 15/680642 |
Document ID | / |
Family ID | 50386882 |
Filed Date | 2017-11-30 |
United States Patent
Application |
20170347345 |
Kind Code |
A1 |
HU; Zhenxing ; et
al. |
November 30, 2017 |
METHOD AND DEVICE FOR RESOURCE CONFIGURATION
Abstract
The present invention discloses a method and a device for
resource configuration, the method includes: at first a base
station broadcasts public resource configuration to a user
equipment on a broadcast channel, and then the base station obtains
an available public resource after receiving RRC connection request
sent by a target user equipment in a desynchronization state, the
target user equipment is a user equipment of the user equipments
which is in a desynchronization state; finally the base station
sends an index number of the available public resource to the
target user equipment, so that the target user equipment performs
data transmission through the available public resource
corresponding to the index number of the available public resource.
The present invention can be applied to the field of communication
system.
Inventors: |
HU; Zhenxing; (Shenzhen,
CN) ; GAO; Yongqiang; (Beijing, CN) ; ZHANG;
Wen; (Shenzhen, CN) ; LI; Yue; (Shenzhen,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Huawei Technologies Co., Ltd. |
Shenzhen |
|
CN |
|
|
Family ID: |
50386882 |
Appl. No.: |
15/680642 |
Filed: |
August 18, 2017 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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14467844 |
Aug 25, 2014 |
9756624 |
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15680642 |
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PCT/CN2012/082399 |
Sep 28, 2012 |
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14467844 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 72/042 20130101;
H04W 72/0413 20130101; H04W 74/0833 20130101 |
International
Class: |
H04W 72/04 20090101
H04W072/04; H04W 74/08 20090101 H04W074/08 |
Claims
1. A method for resource configuration, comprising: broadcasting,
by a base station, public resource configuration to a user
equipment on a broadcast channel, wherein the public resource
configuration comprises a physical resource configuration list
(PHYConfig list); receiving, by the base station, a radio resource
control protocol (RRC) connection request sent by a target user
equipment (UE) which is in a desynchronization state; obtaining, by
the base station, an available public resource after receiving the
RRC connection request sent by the target UE; sending, by the base
station, an index number of the available public resource to the
target UE, the index number of the available public resource is
configured to perform data transmission through the available
public resource corresponding to the index number of the available
public resource by the target UE, wherein the available public
resource is obtained by the target UE from the PHYConfig list
according to the index number of the available public resource.
2. The method for resource configuration according to claim 1,
wherein before receiving, by the base station, the RRC connection
request sent by the target UE which is in the desynchronization
state, the method further comprises: triggering, by the base
station, the target UE to enter into the desynchronization state
through medium access control (MAC) layer control information or a
RRC message.
3. The method for resource configuration according to claim 1,
wherein the obtaining, by the base station, the available public
resource after receiving the RRC connection request sent by the
target UE comprises: if the target UE accesses through an ordinary
preamble (preamble) and accesses successfully, obtaining, by the
base station, the available public resource after receiving a MSG3
message which carries a RRC connection request and is sent by the
target UE.
4. The method for resource configuration according to claim 1,
wherein the public resource configuration further comprises access
resources (RACH resources), the obtaining, by the base station, the
available public resource after receiving the RRC connection
request sent by the target UE which is in the desynchronization
state comprises: if the target UE accesses through a dedicated
preamble for public resource contention, obtaining, by the base
station, the available public resource after receiving access
information which carries the dedicated preamble for the public
resource contention and is sent by the target UE, wherein the
dedicated preamble for the public resource contention is selected
from the RACH resources by the target UE; the sending, by the base
station, the index number of the available public resource to the
target UE comprises: sending, by the base station, an extended
access response (RAR) to the target UE, wherein the extended RAR
carries the index number of the available public resource.
5. The method for resource configuration according to claim 1,
wherein after broadcasting, by the base station, the public
resource configuration to the UEs on the broadcast channel, the
method further comprises: when the base station needs to transmit
downlink data to the target UE and the available public resource
exists, sending, by the base station the index number of the
available public resource to the target UE and a physical downlink
control channel order (PDCCH order) to the target UE; if the PDCCH
order carries a dedicated access resource configured for the target
UE, then after the target UE accesses successfully through the
dedicated access resource, scheduling, by the base station, the
target UE to receive the downlink data through the available public
resource, wherein the available public resource is obtained by the
target UE from the PHYConfig list according to the index number of
the available public resource; or if the PDCCH order does not carry
the dedicated access resource configured for the target UE, then
after the target UE accesses successfully, receiving, by the base
station, an identifier C-RNTI of the target UE which is sent by the
target UE; scrambling, by the base station, a physical downlink
control channel with the C-RNTI, and indicating the UE, via the
scrambled physical downlink control channel, to receive the
downlink data through the available public resource.
6. A method for resource configuration, comprising: receiving, by a
target user equipment (UE), public resource configuration sent by a
base station through a broadcast channel, wherein the public
resource configuration comprises a physical resource configuration
list (PHYConfig list); sending, by the target UE, a RRC connection
request to the base station for obtaining an available public
resource, wherein the target user equipment is in a
desynchronization state; receiving, by the target UE, an index
number of the available public resource sent by the base station;
performing, by the target UE, data transmission through the
available public resource corresponding to the index number of the
available public resource, wherein the available public resource is
obtained by the target UE from the PHYConfig list according to the
index number of the available public resource.
7. The method for resource configuration according to claim 6,
wherein before sending, by the target UE the RRC connection request
to the base station, wherein the target UE is in the
desynchronization state, the method further comprises: entering, by
the target UE, into the desynchronization state according to medium
access control (MAC) layer control information or a radio resource
control protocol (RRC) message.
8. The method for resource configuration according to claim 6,
wherein the sending, by the target UE, the RRC connection request
to the base station, wherein the target UE is in the
desynchronization state, comprises: if the target UE accesses
through an ordinary preamble (preamble) and accesses successfully,
sending, by the target UE to the base station, a MSG3 message
carrying a RRC connection request.
9. The method for resource configuration according to claim 6,
wherein the public resource configuration further comprises access
resources (RACH resources), the sending, by the target UE, the RRC
connection request to the base station, wherein the target UE is in
the desynchronization state, comprises: if the target UE accesses
through a dedicated preamble for public resource contention,
sending, by the target UE to the base station, access information
carrying the dedicated preamble for the public resource contention,
wherein the dedicated preamble for the public resource contention
is selected by the target UE from the RACH resources; the
receiving, by the target UE, the index number of the available
public resource sent by the base station comprises: receiving, by
the target UE, an extended access response (RAR) sent by the base
station, wherein the extended RAR carries the index number of the
available public resource.
10. The method for resource configuration according to claim 6,
wherein after receiving, by the target UE, the public resource
configuration sent by the base station through the broadcast
channel, the method further comprises: when the base station needs
to transmit downlink data to the target UE and an available public
resource exists, receiving, by the target UE, an index number of
the available public resource and a physical downlink control
channel order (PDCCH order) sent by the base station; if the PDCCH
order carries a dedicated access resource configured for the target
UE, receiving, by the target UE, the downlink data through the
available public resource according to a schedule of the base
station, wherein the available public resource is obtained by the
target UE from the PHYConfig list according to the index number of
the available public resource; or if the PDCCH order does not carry
the dedicated access resource configured for the target UE, then
after the target UE accesses successfully, sending, by the target
UE, an identifier C-RNTI of the target UE to the base station;
receiving, by the target UE, the downlink data through the
available public resource according to an indication of the base
station.
11. A base station, comprising: a processor, configured to
broadcast public resource configuration to a target user equipment
(UE) on a broadcast channel, wherein the public resource
configuration comprises a physical resource configuration list
(PHYConfig list); a receiver, configured to, after the processor
broadcasts the public resource configuration to the target UE on
the broadcast channel, receive a RRC connection request sent by the
target UE which is in a desynchronization state; the processor, is
further configured to, after the receiver receives the RRC
connection request sent by the target UE, obtain an available
public resource; a transmitter, configured to send to the target UE
an index number of the available public resource obtained by the
processor, wherein the index number of the available public
resource is configured to perform data transmission through the
available public resource corresponding to the index number of the
available public resource by the target UE, wherein the available
public resource is obtained by the target UE according to the index
number of the available public resource, from the PHYConfig list
broadcasted by the processor.
12. The base station according to claim 11, wherein: the processor,
is further configured to, before the receiver receives the RRC
connection request sent by the target UE, trigger the target UE to
enter into the desynchronization state through medium access
control (MAC) layer control information or a radio resource control
protocol (RRC) message.
13. The base station according to claim 11, wherein: the receiver,
is specifically configured to, if the target UE accesses through an
ordinary preamble (preamble) and accesses successfully, receive a
MSG3 message which carries a RRC connection request and is sent by
the target UE.
14. The base station according to claim 11, wherein the public
resource configuration further comprises access resources (RACH
resources), the receiver, is further specifically configured to, if
the target UE accesses through a dedicated preamble for public
resource contention, receive access information which carries the
dedicated preamble for public resource contention and is sent by
the target UE, wherein the dedicated preamble for the public
resource contention is selected from the RACH resources by the
target UE; the transmitter, is specifically configured to send an
extended access response (RAR) to the target UE, wherein the
extended RAR carries the index number of the available public
resource.
15. The base station according to claim 11, wherein: the
transmitter, is further configured to, after the processor
broadcasts the public resource configuration to the UE on the
broadcast channel, if downlink data need to be transmitted to the
target UE and the available public resources exists, send the index
number of the available public resource to the target UE and send a
physical downlink control channel order (PDCCH order) to the target
UE; the processor, is further configured to, if the PDCCH order
carries a dedicated access resource configured for the target UE,
then after the target UE accesses successfully through the
dedicated access resource, schedule the target UE to receive the
downlink data through the available public resource, wherein the
available public resource is obtained by the target UE from the
PHYConfig list according to the index number of the available
public resource; or the receiver, is further configured to, if the
PDCCH order does not carry the dedicated access resource configured
for the target UE, then after the target UE accesses successfully,
receive an identifier C-RNTI of the target UE which is sent by the
target UE; the processor, is further configured to, after
scrambling a physical downlink control channel with the C-RNTI
received by the receiver, indicate the UE, via the scrambled
physical downlink control channel, to receive the downlink data
through the available public resource.
16. A user equipment (UE), comprising: a receiver, configured to
receive public resource configuration sent by a base station
through a broadcast channel, wherein the public resource
configuration comprises a physical resource configuration list
(PHYConfig list); a transmitter, configured to, after the receiver
receives the public resource configuration sent by the base station
through the broadcast channel, send RRC connection request to the
base station, so that the base station obtains an available public
resource; the receiver, is further configured to receive an index
number of the available public resource sent by the base station; a
processor, configured to perform data transmission through the
available public resource corresponding to the index number of the
available public resource received by the receiver, wherein the
available public resource is obtained by the target UE from the
PHYConfig list according to the index number of the available
public resource.
17. The UE according to claim 16, wherein: the processor, is
further configured to, before the transmitter sends the public
resource request to the base station, enter into the
desynchronization state according to medium access control (MAC)
layer control information or a radio resource control protocol
(RRC) message.
18. The UE according to claim 16, wherein: the transmitter, is
specifically configured to, if accessing through an ordinary
preamble (preamble) and accessing successfully, send to the base
station a MSG3 message carrying a public resource request.
19. The UE according to claim 16, wherein the public resource
configuration further comprises access resources (RACH resources),
the transmitter, is further specifically configured to, if
accessing through a dedicated preamble for public resource
contention, send to the base station access information carrying
the dedicated preamble for the public resource contention, wherein
the dedicated preamble for the public resource contention is
selected from the RACH resources; the receiver, is specifically
configured to receive an extended access response (RAR) sent by the
base station, wherein the extended RAR carries the index number of
the available public resource.
20. The UE according to claim 16, wherein: the receiver, is further
configured to, after receiving the public resource configuration
sent by the base station through the broadcast channel, when the
base station needs to transmit downlink data and the available
public resource exists, receive the index number of the available
public resource and a physical downlink control channel order
(PDCCH order) sent by the base station; the receiver, is further
configured to, if the PDCCH order carries a dedicated access
resource, receive the downlink data through the available public
resource according to a schedule of the base station, wherein the
available public resource is obtained from the PHYConfig list
according to the index number of the available public resource; or
the transmitter, is further configured to, if the PDCCH order
received by the receiver does not carry the dedicated access
resource, then after accessing successfully, send an identifier
C-RNTI of the target UE to the base station; the receiver, is
further configured to, after the transmitter sends the identifier
C-RNTI of the target UE to the base station, receive the downlink
data through the available public resource according to an
indication of the base station.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 14/467,844, filed on Aug. 25, 2014, which is a
continuation of International Application No. PCT/CN2012/082399,
filed on Sep. 28, 2012. All of the afore-mentioned patent
applications are hereby incorporated by reference in their
entireties.
TECHNICAL FIELD
[0002] The present invention relates to the field of communication
system, and in particular, to a method and a device for resource
configuration.
BACKGROUND
[0003] Internet of things is also called M2M, which can achieve
intelligent interconnection among people, equipments and systems.
The Internet of things is aimed at connecting all items with the
Internet via information sensing equipments, so as to achieve
intelligentized identification and management. Combined with the
Internet, the Internet of things can achieve remote sense and
control of all items, thereby generating a more intelligent
production and life system. It is much huger than the current
Internet, and is widely used in multiple fields of smart grid,
smart intelligent transportation system, and environmental
protection, etc.
[0004] Currently, the scenario of intermittently sending small
packets exists in user equipments such as smart phones etc, and
some M2M applications such as smart meter reading, each
transmission of a relatively small amount of data needs a lot of
signaling interactions, especially RB (radio bearer) configuration
and release procedures, thereby taking up relatively more system
resources, and resulting in inefficient data transmission.
[0005] The way of the user equipments being permanent online in a
desynchronization state is now commonly adopted to solve the above
problem. In this way, a UE (User Equipment, user equipment) first
save physical layer resource configuration information context
which is configured by a base station; when data arrive at the user
equipment, the user equipment can send the data directly after
performing a synchronization process; and then the user equipment
will release the physical layer resource configuration, which
includes PUCCH (Physical Uplink Control Channel, physical uplink
control channel) and SRS (sounding reference signal, Sounding
Reference Signal). However, when user equipment data arrive again,
the base station needs to re-configure the user equipment, that is,
the base station still needs to send a reconfiguration message to
the user equipment to configure an available public resource for
the user equipment, thereby resulting in high signaling overhead
during the information interactions between the user equipment and
the base station.
SUMMARY
[0006] Embodiments of the present invention provide a method and a
device for resource configuration, which reduce signaling overhead
during information interactions between the user equipment and the
base station.
[0007] Technical solutions adopted by embodiments of the present
invention are:
[0008] One aspect provides a method for resource configuration
including:
[0009] broadcasting, by a base station, public resource
configuration to a user equipment on a broadcast channel, where the
public resource configuration includes a physical resource
configuration list (PHYConfig list);
[0010] obtaining, by the base station, an available public resource
after receiving public resource requesting information sent by a
target user equipment which is in a desynchronization state;
[0011] sending, by the base station, an index number of the
available public resource to the target user equipment, so that the
target user equipment performs data transmission through the
available public resource corresponding to the index number of the
available public resource, where the available public resource is
obtained by the target user equipment from the PHYConfig list
according to the index number of the available public resource.
[0012] Before receiving, by the base station, the public resource
requesting information sent by the target user equipment which is
in the desynchronization state, the method further includes:
[0013] triggering, by the base station, the target user equipment
to enter into the desynchronization state through medium access
control (MAC) layer control information or a radio resource control
protocol (RRC) message.
[0014] The obtaining, by the base station, the available public
resource after receiving the public resource requesting information
sent by the target user equipment includes:
[0015] if the target user equipment accesses through an ordinary
preamble (preamble) and accesses successfully, obtaining, by the
base station, the available public resource after receiving a MSG3
message which carries a public resource request and is sent by the
target user equipment.
[0016] The public resource configuration further includes access
resources (RACH resources), the obtaining, by the base station, the
available public resource after receiving the public resource
requesting information sent by the target user equipment which is
in the desynchronization state includes:
[0017] if the target user equipment accesses through a dedicated
preamble for public resource contention, obtaining, by the base
station, the available public resource after receiving access
information which carries the dedicated preamble for the public
resource contention and is sent by the target user equipment, where
the dedicated preamble for the public resource contention is
selected from the RACH resources by the target user equipment;
[0018] The sending, by the base station the index number of the
available public resource to the target user equipment
includes:
[0019] sending, by the base station, an extended access response
(RAR) to the target user equipment, where the extended RAR carries
the index number of the available public resource.
[0020] The public resource configuration further includes backoff
parameters (BackOff parameters); after receiving, by the base
station, the access information which carries the dedicated
preamble for the public resource contention and is sent by the
target user equipment, and before obtaining the available public
resource, the method further includes:
[0021] if there is no available public resource, indicating, by the
base station, the target user equipment to perform backoff
according to the backoff parameters (BackOff parameters).
[0022] After sending, by the base station, the index number of the
available public resource to the target user equipment, the method
further includes:
[0023] releasing, by the base station, the available public
resource.
[0024] The releasing, by the base station, the available public
resource includes:
[0025] when the base station determines that a buffer status report
carried by the target user equipment is 0, releasing, by the base
station the available public resource; or
[0026] when the base station determines that a maximum resource
occupancy time exceeds a maximum occupancy time indicated in the
public resource configuration, releasing, by the base station, the
available public resource; or
[0027] indicating, by the base station, the target user equipment
via a signaling to release the available public resource.
[0028] After broadcasting, by the base station, the public resource
configuration to the user equipments on the broadcast channel, the
method further includes:
[0029] when the base station needs to transmit downlink data to the
target user equipment and the available public resource exists,
sending, by the base station, the index number of the available
public resources to the target user equipment and a physical
downlink control channel order (PDCCH order) to the target user
equipment;
[0030] if the PDCCH order carries a dedicated access resource
configured for the target user equipment, then after the target
user equipment accesses successfully through the dedicated access
resource, scheduling, by the base station, the target user
equipment to receive the downlink data through the available public
resource, where the available public resource is obtained by the
target user equipment from the PHYConfig list according to the
index number of the available public resource; or
[0031] if the PDCCH order does not carry the dedicated access
resource configured for the target user equipment, then after the
target user equipment accesses successfully, receiving, by the base
station, an identifier C-RNTI of the target user equipment which is
sent by the target user equipment;
[0032] scrambling, by the base station, a physical downlink control
channel with the C-RNTI, and indicating the user equipment, via the
scrambled physical downlink control channel, to receive the
downlink data through the available public resource.
[0033] Another aspect provides another method for resource
configuration, including:
[0034] receiving, by a user equipment, public resource
configuration sent by a base station through a broadcast channel,
where the public resource configuration includes a physical
resource configuration list (PHYConfig list);
[0035] sending, by a target user equipment of the user equipment
public resource requesting information to the base station, so that
the base station obtains an available public resource, wherein the
target user equipment is in a desynchronization state;
[0036] receiving, by the target user equipment, an index number of
the available public resource sent by the base station;
[0037] performing, by the target user equipment, data transmission
through the available public resource corresponding to the index
number of the available public resource, where the available public
resource is obtained by the target user equipment from the
PHYConfig list according to the index number of the available
public resource.
[0038] Before the sending, by the target user equipment of the user
equipment, the public resource requesting information to the base
station, where the target user equipment is in the
desynchronization state, the method further includes:
[0039] entering, by the target user equipment, into the
desynchronization state according to medium access control (MAC)
layer control information or a radio resource control protocol
(RRC) message.
[0040] The sending, by the target user equipment of the user
equipment, the public resource requesting information to the base
station, where the target user equipment is in the
desynchronization state, includes:
[0041] if the target user equipment accesses through an ordinary
preamble (preamble) and accesses successfully, sending, by the
target user equipment to the base station, a MSG3 message carrying
a public resource request.
[0042] The public resource configuration further includes access
resources (RACH resources), the sending, by the target user
equipment of the user equipment, the public resource requesting
information to the base station, where the target user equipment is
in the desynchronization state, includes:
[0043] if the target user equipment accesses through a dedicated
preamble for public resource contention, sending, by the target
user equipment to the base station, access information carrying the
dedicated preamble for public resource contention, where the
dedicated preamble for the public resource contention is selected
by the target user equipment from the RACH resources;
[0044] The receiving, by the target user equipment, the index
number of the available public resource sent by the base station
includes:
[0045] receiving, by the target user equipment, an extended access
response (RAR) sent by the base station, where the extended RAR
carries the index number of the available public resource.
[0046] The public resource configuration further includes backoff
parameters (BackOff parameters), after the target user equipment
sends to the base station the access information carrying the
dedicated preamble for the public resource contention, the method
further includes:
[0047] if there is no available public resource, receiving, by the
target user equipment, indication information sent by the base
station, where the indication information is used to indicate the
target user equipment to perform an operation of backoff; and
[0048] performing, by the target user equipment, the backoff
according to the backoff parameters (BackOff parameters).
[0049] After the performing, by the target user equipment, the data
transmission through the available public resource corresponding to
the index number of the available public resource, the method
further includes:
[0050] releasing, by the target user equipment, the available
public resource.
[0051] The releasing, by the target user equipment, the available
public resource includes:
[0052] when the target user equipment determines that a buffer
status report is 0, releasing, by the target user equipment, the
available public resource; or
[0053] when a maximum resource occupancy time exceeds a maximum
occupancy time indicated in the public resource configuration,
releasing, by the target user equipment, the available public
resource; or
[0054] releasing, by the target user equipment, the available
public resource according to an indication of the base station.
[0055] After the receiving, by the user equipment, the public
resource configuration sent by the base station through the
broadcast channel, the method further includes:
[0056] when the base station needs to transmit downlink data to the
target user equipment and the available public resource exists,
receiving, by the target user equipment, the index number of the
available public resource and a physical downlink control channel
order (PDCCH order) sent by the base station;
[0057] if the PDCCH order carries a dedicated access resource
configured for the target user equipment, receiving, by the target
user equipment, the downlink data through the available public
resource according to a schedule of the base station,
[0058] where the available public resource is obtained by the
target user equipment from the PHYConfig list according to the
index number of the available public resource; or
[0059] if the PDCCH order does not carry the dedicated access
resource configured for the target user equipment, then after the
target user equipment accesses successfully, sending, by the target
user equipment, an identifier C-RNTI of the target user equipment
to the base station;
[0060] receiving, by the target user equipment, the downlink data
through the available public resource according to an indication of
the base station.
[0061] Another aspect provides a device for resource configuration,
including:
[0062] a broadcasting unit, configured to broadcast public resource
configuration to a user equipment on a broadcast channel, where the
public resource configuration includes a physical resource
configuration list (PHYConfig list);
[0063] a first receiving unit, configured to, after the
broadcasting unit broadcasts the public resource configuration to
the user equipment on the broadcast channel, receive public
resource requesting information sent by a target user equipment
which is in a desynchronization state;
[0064] an obtaining unit, configured to, after the first receiving
unit receives the public resource requesting information sent by
the target user equipment, obtain an available public resource;
[0065] a first sending unit, configured to send an index number of
the available public resource obtained by the obtaining unit to the
target user equipment, so that the target user equipment performs
data transmission through the available public resource
corresponding to the index number of the available public resource,
where the available public resource is obtained by the target user
equipment, according to the index number of the available public
resources, from the PHYConfig list broadcasted by the broadcasting
unit.
[0066] The device further includes:
[0067] a triggering unit, configured to, before the first receiving
unit receives the public resource requesting information sent by
the target user equipment, trigger the target user equipment to
enter into the desynchronization state through medium access
control (MAC) layer control information or a radio resource control
protocol (RRC) message.
[0068] The first receiving unit, is specifically configured to, if
the target user equipment accesses through an ordinary preamble
(preamble) and accesses successfully, receive a MSG3 message which
carries a public resource request and is sent by the target user
equipment.
[0069] The first receiving unit, is further specifically configured
to, if the target user equipment accesses through a dedicated
preamble for the public resource contention, receive access
information which carries the dedicated preamble for the public
resource contention and is sent by the target user equipment, where
the dedicated preamble for the public resource contention is
selected by the target user equipment from the RACH resources;
[0070] the first sending unit, is specifically configured to send
an extended access response (RAR) to the target user equipment,
where the extended RAR carries the index number of the available
public resource.
[0071] The device further includes:
[0072] a first indication unit, configured to, before the obtaining
unit obtains the available public resource, if there is no
available public resource, indicate the target user equipment to
perform backoff according to backoff parameters (BackOff
parameters).
[0073] A releasing unit, configured to, after the first sending
unit sends the index number of the available public resource to the
target user equipment, release the available public resource.
[0074] The releasing unit, is specifically configured to, when a
buffer status report carried by the target user equipment is 0,
release the available public resource; or
[0075] when a maximum resource occupancy time exceeds a maximum
occupancy time indicated in the public resource configuration,
release the available public resource; or
[0076] indicate the target user equipment via a signaling to
release the available public resource.
[0077] The device further includes:
[0078] a second sending unit, configured to, after the broadcasting
unit broadcasts the public resource configuration to the user
equipments on the broadcast channel, if downlink data needs to be
transmitted to the target user equipment and the available public
resource exists, send the index number of the available public
resource to the target user equipment and send a physical downlink
control channel order (PDCCH order) to the target user
equipment;
[0079] a scheduling unit, configured to, after the second sending
unit sends the index number of the available public resource to the
target user equipment and the physical downlink control channel
order (PDCCH order) to the target user equipment, if the PDCCH
order carries a dedicated access resource configured for the target
user equipment, then after the target user equipment accesses
successfully through the dedicated access resource, schedule the
target user equipment to receive the downlink data through the
available public resource,
[0080] where the available public resource is obtained from the
PHYConfig list by the target user equipment according to the index
number of the available public resource; or
[0081] a second receiving unit, configured to, after the second
sending unit sends the index number of the available public
resource to the target user equipment and sends the physical
downlink control channel order (PDCCH order) to the target user
equipment, if the PDCCH order does not carry the dedicated access
resource configured for the target user equipment, then after the
target user equipment accesses successfully, receive an identifier
C-RNTI of the target user equipment which is sent by the target
user equipment;
[0082] a second indication unit, configured to, after scrambling a
physical downlink control channel with the C-RNTI received by the
second receiving unit, indicate the user equipment, via the
scrambled physical downlink control channel, to receive the
downlink data through the available public resource.
[0083] Another aspect provides another device for resource
configuration, including:
[0084] a first receiving unit, configured to receive public
resource configuration sent by a base station through a broadcast
channel, where the public resource configuration includes a
physical resource configuration list (PHYConfig list);
[0085] a first sending unit, configured to, after the first
receiving unit receives the public resource configuration sent by
the base station through the broadcast channel, send public
resource requesting information to the base station, so that the
base station obtains an available public resource;
[0086] a second receiving unit, configured to receive an index
number of the available public resource sent by the base
station;
[0087] a transmitting unit, configured to perform data transmission
through the available public resource corresponding to the index
number of the available public resource received by the second
receiving unit, where the available public resource is obtained by
the target user equipment from the PHYConfig list according to the
index number of the available public resource.
[0088] The device further includes:
[0089] a desynchronization unit, configured to, before the first
sending unit sends the public resource requesting information to
the base station, enter into the desynchronization state according
to medium access control (MAC) layer control information or a radio
resource control protocol (RRC) message.
[0090] The first sending unit, is specifically configured to, if
accessing through an ordinary preamble (preamble) and accessing
successfully, send to the base station a MSG3 message carrying a
public resource request.
[0091] The first sending unit, is further specifically configured
to, if accessing through a dedicated preamble for public resource
contention, send to the base station access information carrying
the dedicated preamble for the public resource contention, where
the dedicated preamble for the public resource contention is
selected from the RACH resources;
[0092] The second receiving unit, is specifically configured to
receive an extended access response (RAR) sent by the base station,
where the extended RAR carries the index number of the available
public resource.
[0093] The second receiving unit, is further configured to, after
the first sending unit sends to the base station the access
information carrying the dedicated preamble for the public resource
contention, if there is no available public resource, receive
indication information sent by the base station, where the
indication information is used to indicate the target user
equipment to perform an operation of backoff.
[0094] The device further includes:
[0095] a backoff unit, configured to perform the backoff according
to backoff parameters (BackOff parameters) after the second
receiving unit receives the indication information sent by the base
station.
[0096] A releasing unit, configured to, after the transmitting unit
performs the data transmission through the available public
resource corresponding to the index number of the available public
resource, release the available public resource.
[0097] The releasing unit, is specifically configured to, when a
cache status report is 0, release the available public resource;
or
[0098] when a maximum resource occupancy time exceeds a maximum
occupancy time indicated in the public resource configuration,
release the available public resource; or
[0099] release the available public resource according to an
indication of the base station.
[0100] The device further includes:
[0101] a third receiving unit, configured to, after the first
receiving unit receives the public resource configuration sent by
the base station through the broadcast channel, when the base
station needs to transmit downlink data and the available public
resource exists, receive the index number of the available public
resource and a physical downlink control channel order (PDCCH
order) sent by the base station;
[0102] the third receiving unit, is further configured to, if the
PDCCH order carries a dedicated access resource, receive the
downlink data through the available public resource according to a
schedule of the base station,
[0103] where the available public resource is obtained from the
PHYConfig list according to the index number of the available
public resource; or
[0104] The device further includes:
[0105] a second sending unit, configured to, if the PDCCH order
received by the third receiving unit does not carry the dedicated
access resource, then after accessing successfully, send an
identifier C-RNTI of the target user equipment to the base
station;
[0106] a fourth receiving unit, configured to, after the second
sending unit sends the identifier C-RNTI of the target user
equipment to the base station, receive the downlink data through
the available public resource according to an indication of the
base station.
[0107] Another aspect provides a base station, including:
[0108] a processor, configured to broadcast public resource
configuration to a user equipment on a broadcast channel, where the
public resource configuration includes a physical resource
configuration list (PHYConfig list);
[0109] a receiver, configured to, after the processor broadcasts
the public resource configuration to the user equipments on the
broadcast channel, receive public resource requesting information
sent by a target user equipment which is in a desynchronization
state;
[0110] the processor, is further configured to, after the receiver
receives the public resource requesting information sent by the
target user equipment, obtain available public resource;
[0111] a transmitter, configured to send to the target user
equipment an index number of the available public resource obtained
by the processor, so that the target user equipment performs data
transmission through the available public resource corresponding to
the index number of the available public resource, where the
available public resource is obtained by the target user equipment,
according to the index number of the available public resource,
from the PHYConfig list broadcasted by the processor.
[0112] The processor, is further configured to, before the receiver
receives the public resource requesting information sent by the
target user equipment, trigger the target user equipment to enter
into the desynchronization state through medium access control
(MAC) layer control information or a radio resource control
protocol (RRC) message.
[0113] The receiver, is specifically configured to, if the target
user equipment accesses through an ordinary preamble (preamble) and
accesses successfully, receive a MSG3 message which carries a
public resource request and is sent by the target user
equipment.
[0114] The public resource configuration further includes access
resources (RACH resources),
[0115] The receiver, is further specifically configured to, if the
target user equipment accesses through a dedicated preamble for
public resource contention, receive access information which
carries the dedicated preamble for the public resource contention
and is sent by the target user equipment, where the dedicated
preamble for the public resource contention is selected from the
RACH resources by the target user equipment;
[0116] The transmitter, is specifically configured to send an
extended access response (RAR) to the target user equipment, where
the extended RAR carries the index number of the available public
resource.
[0117] The processor, is further configured to, before obtaining
the available public resource, if there is no available public
resource, indicate the target user equipment to perform backoff
according to backoff parameters (BackOff parameters).
[0118] The processor, is further configured to, after the
transmitter sends the index number of the available public resource
to the target user equipment, release the available public
resource.
[0119] The processor, is specifically configured to, when a buffer
status report carried by the target user equipment is 0, release
the available public resource; or
[0120] when a maximum resource occupancy time exceeds a maximum
occupancy time indicated in the public resource configuration,
release the available public resource; or
[0121] indicate the target user equipment via a signaling to
release the available public resource.
[0122] The transmitter, is further configured to, after the
processor broadcasts the public resource configuration to the user
equipments on the broadcast channel, if downlink data need to be
transmitted to the target user equipment and the available public
resource exists, send the index number of the available public
resource to the target user equipment and send a physical downlink
control channel order (PDCCH order) to the target user
equipment;
[0123] the processor, is further configured to, after the
transmitter sends the index number of the available public resource
to the target user equipment and sends the physical downlink
control channel order (PDCCH order) to the target user equipment,
if the PDCCH order carries a dedicated access resource configured
for the target user equipment, then after the target user equipment
accesses successfully through the dedicated access resource,
schedule the target user equipment to receive the downlink data
through the available public resource,
[0124] where the available public resource is obtained by the
target user equipment from the PHYConfig list according to the
index number of the available public resource; or
[0125] the receiver, is further configured to, after the
transmitter sends the index number of the available public resource
to the target user equipment and sends the physical downlink
control channel order (PDCCH order) to the target user equipment,
if the PDCCH order does not carry the dedicated access resource
configured for the target user equipment, then after the target
user equipment accesses successfully, receive an identifier C-RNTI
of the target user equipment which is sent by the target user
equipment;
[0126] the processor, is further configured to, after scrambling a
physical downlink control channel with the C-RNTI received by the
receiver, indicate the user equipment, via the scrambled physical
downlink control channel, to receive the downlink data through the
available public resource.
[0127] Another aspect provides a user equipment, including:
[0128] a receiver, configured to receive public resource
configuration sent by a base station through a broadcast channel,
where the public resource configuration includes a physical
resource configuration list (PHYConfig list);
[0129] a transmitter, configured to, after the receiver receives
the public resource configuration sent by the base station through
the broadcast channel, send public resource requesting information
to the base station, so that the base station obtains an available
public resource;
[0130] the receiver, is further configured to receive an index
number of the available public resource sent by the base
station;
[0131] a processor, configured to perform data transmission through
the available public resource corresponding to the index number of
the available public resource received by the receiver, where the
available public resource is obtained by the target user equipment
from the PHYConfig list according to the index number of the
available public resource.
[0132] The processor, is further configured to, before the
transmitter sends the public resource requesting information to the
base station, enter into the desynchronization state according to
medium access control (MAC) layer control information or a radio
resource control protocol (RRC) message.
[0133] The transmitter, is specifically configured to, if accessing
through an ordinary preamble (preamble) and accessing successfully,
send to the base station a MSG3 message carrying a public resource
request.
[0134] The public resource configuration further includes access
resources (RACH resources),
[0135] The transmitter, is further specifically configured to, if
accessing through a dedicated preamble for the public resource
contention, send to the base station access information carrying
the dedicated preamble for the public resource contention, where
the dedicated preamble for the public resource contention is
selected from the RACH resources;
[0136] The receiver, is specifically configured to receive an
extended access response (RAR) sent by the base station, where the
extended RAR carries the index number of the available public
resource.
[0137] The receiver, is further configured to, after the
transmitter sends to the base station the access information
carrying the dedicated preamble for the public resource contention,
if there is no available public resource, receive indication
information sent by the base station, where the indication
information is used to indicate the target user equipment to
perform an operation of backoff;
[0138] The processor, is further configured to perform the backoff
according to backoff parameters (BackOff parameters) after the
receiver receives the indication information sent by the base
station.
[0139] The processor, is further configured to, after performing
the data transmission through the available public resource
corresponding to the index number of the available public resource,
release the available public resource.
[0140] The processor, is specifically configured to, when a buffer
status report is 0, release the available public resource; or
[0141] when a maximum resource occupancy time exceeds a maximum
occupancy time indicated in the public resource configuration,
release the available public resource; or
[0142] release the available public resource according to an
indication of the base station.
[0143] The receiver, is further configured to, after receiving the
public resource configuration sent by the base station through the
broadcast channel, when the base station needs to transmit downlink
data and the available public resource exists, receive the index
number of the available public resource and a physical downlink
control channel order (PDCCH order) sent by the base station;
[0144] the receiver, is further configured to, if the PDCCH order
carries a dedicated access resource, receive the downlink data
through the available public resource according to a schedule of
the base station,
[0145] where the available public resource is obtained from the
PHYConfig list according to the index number of the available
public resource; or
[0146] the transmitter, is further configured to, if the PDCCH
order received by the receiver does not carry the dedicated access
resource, then after accessing successfully, send an identifier
C-RNTI of the target user equipment to the base station;
[0147] the receiver, is further configured to, after the
transmitter sends the identifier C-RNTI of the target user
equipment to the base station, receive the downlink data through
the available public resource according to an indication of the
base station.
[0148] In the method and the device for resource configuration
according to embodiments of the present invention, at first a base
station broadcasts public resource configuration to a user
equipment on a broadcast channel, and then the base station obtains
an available public resource after receiving public resource
requesting information sent by a target user equipment which is in
a desynchronization state, the target user equipment is a user
equipment of the user equipments which is in a desynchronization
state; finally the base station sends an index number of the
available public resource to the target user equipment, so that the
target user equipment performs data transmission through the
available public resource corresponding to the index number of the
available public resource. The way of the user equipment being
permanent online is adopted in the prior art, when data arrive at
the user equipment once again, the base station still needs to send
a reconfiguration message to the user equipment, thereby resulting
in the problem of high signaling overhead. However, in embodiments
of the present invention, the base station broadcasts the public
resource configuration in advance, when the data arrive at the user
equipment, the base station simply needs to send the index number
of the available public resource to the user equipment, and then
the user equipment can obtain the available public resource
corresponding to the index number of the available public resource
from the public resource configuration broadcasted in advance, so
as to complete the data transmission, thus the base station does
not need to send the reconfiguration message to the user equipment
to perform re-configuration, thereby reducing the signaling
overhead.
BRIEF DESCRIPTION OF DRAWINGS
[0149] To describe technical solutions in embodiments of the
present invention more clearly, the following briefly describes the
accompanying drawings required in the description of embodiments or
the prior art. Apparently, the accompanying drawings illustrate
only some exemplary embodiments of the present invention, and those
skilled in the art can derive other drawings from these drawings
without creative efforts.
[0150] FIG. 1 is a flowchart of a method for resource configuration
according to an embodiment of the present invention;
[0151] FIG. 2 is a schematic structural diagram of a device for
resource configuration according to an embodiment of the present
invention;
[0152] FIG. 3 is a schematic structural diagram of a base station
according to an embodiment of the present invention;
[0153] FIG. 4 is a flowchart of another method for resource
configuration according to an embodiment of the present
invention;
[0154] FIG. 5 is a schematic structural diagram of another device
for resource configuration according to an embodiment of the
present invention;
[0155] FIG. 6 is a schematic structural diagram of a user equipment
according to an embodiment of the present invention.
DESCRIPTION OF EMBODIMENTS
[0156] Technical solutions in embodiments of the present invention
are described clearly and comprehensively with reference to the
accompanying drawings. Obviously, the embodiments described are
only a part rather than all of the embodiments of the present
invention. All other embodiments derived by those skilled in the
art on the basis of the embodiments herein without creative efforts
fall within the protection scope of the present invention.
[0157] In order to make advantages of the technical solutions of
the present invention more clear, the following describes the
present invention in detail with reference to the accompanying
drawings and embodiments.
[0158] This embodiment provides a method for resource
configuration, as shown in FIG. 1, the method includes:
[0159] 101: A base station broadcasts public resource configuration
to a user equipment on a broadcast channel.
[0160] Where the public resource configuration includes a physical
resource configuration list (PHYConfig list), the PHYConfig list
can specifically include: Index (available resource index number),
CQI-ReportConfig (channel quality report configuration, CQI
(channel quality indication, channel quality indication,
configuration of a physical resource used for reporting channel
quality)), soundingRS-UL-Config (uplink sounding reference signal
configuration, soundingRS (SRS, sounding reference signal,
configuration of a physical resource used for transmitting an
uplink SRS)), scheduling Request Config (scheduling request
configuration, configuration of a physical resource used for
transmitting an uplink scheduling request).
[0161] 102: The base station obtains an available public resource
after receiving public resource requesting information sent by a
target user equipment which is in a desynchronization state.
[0162] Specifically, if the target user equipment accesses through
an ordinary preamble (preamble) and accesses successfully, the base
station obtains an available public resource after receiving a MSG3
message which carries a public resource request (e.g. radio
resource control protocol connection request, RRC connection
request, message) and is sent by the target user equipment.
[0163] Alternatively, if the public resource configuration further
includes access resources RACH resources, and the target user
equipment accesses through a dedicated preamble for public resource
contention, the base station obtains the available public resource
after receiving access information which carries the dedicated
preamble for the public resource contention and is sent by the
target user equipment.
[0164] The dedicated preamble for public resource contention is
selected from the RACH resources by the target user equipment, and
the RACH resources can specifically include: RA-PRACH-MaskIndex
(available physical random access channel resource index) and
preambleInfo (available preamble resource).
[0165] Alternatively, if the public resource configuration further
includes backoff parameters BackOff parameters, and there is no
available public resource, the base station indicates the target
user equipment to perform backoff according to the backoff
parameters BackOff parameters.
[0166] Where, the BackOff parameters can specifically include:
InitialBackOff (initial backoff parameter, used for backoff when
accessing for the first time), FailureBackOff (failure backoff
parameter, used for backoff when the access fails),
NoResourceBackOff (no resource backoff parameter, used for backoff
when the base station has no available public resource to allocate
to the UE).
[0167] Optionally, before the step 102, the method can further
include: the base station triggers the target user equipment to
enter into the desynchronization state through medium access
control MAC layer control information or through a radio resource
control protocol RRC message.
[0168] 103, The base station sends an index number of the available
public resource to the target user equipment, so that the target
user equipment performs data transmission through the available
public resource corresponding to the index number of the available
public resource.
[0169] Where, the available public resource is obtained from the
PHYConfig list by the target user equipment according to the index
number of the available public resource.
[0170] Specifically, when the public resource configuration further
includes the access resources, RACH resources, the base station
sends an extended access response RAR to the target user equipment,
and the extended RAR carries the index number of the available
public resource.
[0171] 104, The base station releases the available public
resource.
[0172] Specifically, when the base station determines that a buffer
status report carried by the target user equipment is 0, the base
station releases the available public resource.
[0173] Alternatively, when the base station determines that a
maximum resource occupancy time exceeds a maximum occupancy time
indicated in the public resource configuration, the base station
releases the available public resource.
[0174] Alternatively, the base station indicates the target user
equipment via a signaling to release the available public
resources.
[0175] For embodiments of the present invention, when the base
station needs to transmit downlink data to the target user
equipment and the available public resource exists, the base
station sends the index number of the available public resource to
the target user equipment and sends a physical downlink control
channel order (PDCCH order) to the target user equipment after
broadcasting the public resource configuration to the user
equipments on the broadcast channel; if the PDCCH order carries a
dedicated access resource configured for the target user equipment,
then after the target user equipment accesses successfully through
the dedicated access resource, the base station schedules the
target user equipment to receive the downlink data through the
available public resource.
[0176] Where, the available public resource is obtained from the
PHYConfig list by the target user equipment according to the index
number of the available public resource.
[0177] Alternatively, if the PDCCH order does not carry the
dedicated access resource configured for the target user equipment,
then after the target user equipment accesses successfully, the
base station receives an identifier C-RNTI of the target user
equipment which is sent by the target user equipment; the base
station scrambles the physical downlink control channel with the
C-RNTI, and indicates the user equipment, via the scrambled
physical downlink control channel, to receive the downlink data
through the available public resource.
[0178] In the method for resource configuration according to the
embodiments of the present invention, the base station broadcasts
public resource configuration in advance, when data arrive at a
user equipment, the base station only needs to send an index number
of an available public resource to the user equipment, and then the
user equipment can obtain the available public resource
corresponding to the index number of the available public resource
from the public resource configuration which is broadcasted in
advance, so as to complete the data transmission, thus the base
station does not need to send a reconfiguration message to the user
equipment to perform re-configuration, thereby reducing the
signaling overhead.
[0179] This embodiment provides a device for resource
configuration, as shown in FIG. 2, the entity of the device can be
a base station, the device includes: a broadcasting unit 21, a
first receiving unit 22, an obtaining unit 23, a first sending unit
24, a triggering unit 25, a first indication unit 26, a releasing
unit 27, a second sending unit 28, a scheduling unit 29, a second
receiving unit 210, and a second indication unit 211.
[0180] The broadcasting unit 21 can be configured to broadcast
public resource configuration to a user equipment on a broadcast
channel.
[0181] Where, the public resource configuration can include access
resources RACH resources, backoff parameters BackOff parameters,
and physical resource configuration list PHYConfig list. The RACH
resources include: RA-PRACH-MaskIndex (available physical random
access channel resource index) and preambleInfo (available preamble
resource), the BackOff parameters can specifically include:
InitialBackOff (initial backoff parameter, used for backoff when
accessing for the first time), FailureBackOff (failure backoff
parameter, used for backoff when the access fails),
NoResourceBackOff (no resource backoff parameter, used for backoff
when the base station has no available public resource to allocate
to the UE), the PHYConfig list can specifically include: Index
(available resource index number), CQI-ReportConfig (channel
quality report configuration, CQI (channel quality indication,
channel quality indication, configuration of a physical resource
used for reporting channel quality)), soundingRS-UL-Config (uplink
sounding reference signal configuration, soundingRS (SRS, sounding
reference signal, configuration of a physical resource used for
transmitting an uplink SRS)), schedulingRequestConfig (scheduling
request configuration, configuration of a physical resource used
for transmitting an uplink scheduling request).
[0182] The first receiving unit 22, can be configured to, after the
broadcasting unit 21 broadcasts the public resource configuration
to the user equipments on the broadcast channel, receive public
resource requesting information sent by a target user equipment
which is in a desynchronization state.
[0183] The first receiving unit 22, can be specifically configured
to, if the target user equipment accesses through an ordinary
preamble (preamble) and accesses successfully, receive a message
MSG3 which carries a public resource request and is sent by the
target user equipment.
[0184] The first receiving unit, can be further specifically
configured to, if the target user equipment accesses through a
dedicated preamble for public resource contention, receive access
information which carries the dedicated preamble for the public
resource contention and is sent by the target user equipment.
[0185] Where, the dedicated preamble for the public resource
contention is selected from the RACH resources by the target user
equipment.
[0186] The obtaining unit 23, can be configured to obtain an
available public resource after the first receiving unit 22
receives the public resource requesting information sent by the
target user equipment.
[0187] The first sending unit 24, can be configured to send an
index number of the available public resource obtained by the
obtaining unit 23 to the target user equipment, so that the target
user equipment performs data transmission through an available
public resource corresponding to the index number of the available
public resource.
[0188] The available public resource is obtained from the PHYConfig
list by the target user equipment according to the index number of
the available public resource, where the PHYConfig list is
broadcasted by the broadcasting unit.
[0189] The first sending unit, can be specifically configured to
send an extended access response RAR to the target user equipment,
the extended RAR carries the index number of the available public
resource.
[0190] The triggering unit 25, can be configured to, before the
first receiving unit 22 receives the public resource requesting
information sent by the target user equipment, trigger the target
user equipment to enter into the desynchronization state through
medium access control (MAC) layer control information or through a
radio resource control protocol RRC message.
[0191] The first indication unit 26, is configured to, before the
obtaining unit 23 obtains the available public resource and if
there is no available public resource, indicate the target user
equipment to perform backoff according to backoff parameters
BackOff parameters.
[0192] The releasing unit 27, can be configured to release the
available public resource after the first sending unit 24 sends the
index number of the available public resource to the target user
equipment.
[0193] The releasing unit 27, can be specifically configured to
release the available public resource when a buffer status report
carried by the target user equipment is 0.
[0194] The releasing unit 27, can be further specifically
configured to release the available public resource when a maximum
resource occupancy time exceeds a maximum occupancy time indicated
in the public resource configuration.
[0195] The releasing unit 27, can be further specifically
configured to indicate the target user equipment via a signaling to
release the available public resource.
[0196] The second sending unit 28, can be configured to, after the
broadcasting unit 21 broadcasts the public resource configuration
to the user equipments on the broadcast channel and if downlink
data need to be transmitted to the target user equipment and the
available public resource exists, send the index number of the
available public resource to the target user equipment and send a
physical downlink control channel order PDCCH order to the target
user equipment.
[0197] The scheduling unit 29, can be configured to, if the PDCCH
order sent by the second sending unit 28 carries a dedicated access
resource configured for the target user equipment, then after the
target user equipment accesses successfully through the dedicated
access resource, schedule the target user equipment to receive the
downlink data through the available public resource,
[0198] where the available public resource is obtained from the
PHYConfig list by the target user equipment according to the index
number of the available public resource.
[0199] The second receiving unit 210, can be configured to, if the
PDCCH order sent by the second sending unit 28 does not carry the
dedicated access resource configured for the target user equipment,
then after the target user equipment accesses successfully, receive
an identifier C-RNTI of the target user equipment which is sent by
the target user equipment.
[0200] The second indication unit 211, can be configured to, after
scrambling a physical downlink control channel with the C-RNTI
received by the second receiving unit 210, indicate the user
equipment, via the scrambled physical downlink control channel, to
receive the downlink data through the available public
resource.
[0201] In the device for resource configuration according to the
embodiments of the present invention, the base station broadcasts
public resource configuration in advance, when data arrive at a
user equipment, the base station only needs to send an index number
of an available public resource to the user equipment, and then the
user equipment can obtain the available public resource
corresponding to the index number of the available public resource
from the public resource configuration which is broadcasted in
advance, so as to complete the data transmission, thus the base
station does not need to send a reconfiguration message to the user
equipment to perform re-configuration, thereby reducing the
signaling overhead.
[0202] This embodiment provides a base station, as shown in FIG. 3,
the base station includes: a processor 31, a receiver 32, and a
transmitter 33.
[0203] The processor 31, can be configured to broadcast public
resource configuration to a user equipments on a broadcast
channel.
[0204] The receiver 32, configured to receive public resource
requesting information sent by a target user equipment which is in
a desynchronization state, after the processor 31 broadcasts the
public resource configuration to the user equipment.
[0205] The transmitter 33, can be configured to send an index
number of an available public resource obtained by the processor 31
to the target user equipment, so that the target user equipment
performs data transmission through the available public resource
corresponding to the index number of the available public
resource.
[0206] Where the available public resource is obtained from a
PHYConfig list by the target user equipment according to the index
number of the available public resources, the PHYConfig list is
broadcasted by the processor.
[0207] The processor 31, can be further configured to obtain the
available public resource after the receiver 32 receives the public
resource requesting information sent by the target user
equipment.
[0208] The processor 31, can be further configured to, before the
receiver 32 receives the public resource requesting information
sent by the target user equipment, trigger the target user
equipment to enter into the desynchronization state through medium
access control (MAC) layer control information or through a radio
resource control protocol RRC message.
[0209] The processor 31, can be further configured to, before
obtaining available public resource and if there is no available
public resource, indicate the target user equipment to perform
backoff according to backoff parameters BackOff parameters.
[0210] The processor 31, can be further configured to release the
available public resource after the transmitter sends the index
number of the available public resource to the target user
equipment.
[0211] The processor 31, can be specifically configured to release
the available public resource when a buffer status report carried
by the target user equipment is 0; or release the available public
resource when a maximum resource occupancy time exceeds a maximum
occupancy time indicated in the public resource configuration; or
indicate the target user equipment via a signaling to release the
available public resource.
[0212] The processor 31, can be further configured to, if the PDCCH
order sent by the transmitter 33 carries a dedicated access
resource configured for the target user equipment, then after the
target user equipment accesses successfully through the dedicated
access resource, schedule the target user equipment to receive the
downlink data through the available public resource.
[0213] Where, the available public resource is obtained from the
PHYConfig list by the target user equipment according to the index
number of the available public resource.
[0214] The processor 31, can be further configured to, after
scrambling a physical downlink control channel with a C-RNTI
received by the receiver 32, indicate the user equipment, via the
scrambled physical downlink control channel, to receive the
downlink data through the available public resource.
[0215] The receiver 32, can be specifically configured to, if the
target user equipment accesses through an ordinary preamble
(preamble) and accesses successfully, receive a MSG3 message which
carries a public resource request and is sent by the target user
equipment.
[0216] The receiver 32, can be further specifically configured to,
if the target user equipment accesses through a dedicated preamble
for public resource contention, receive access information which
carries the dedicated preamble for the public resource contention
and is sent by the target user equipment, the dedicated preamble
for public resources contention is selected from the RACH resources
by the target user equipment.
[0217] The receiver 32, can be further configured to, if the PDCCH
order sent by the transmitter 33 does not carry the dedicated
access resource configured for the target user equipment, then
after the target user equipment accesses successfully, receive an
identifier C-RNTI of the target user equipment which is sent by the
target user equipment.
[0218] The transmitter 33, can be configured to send an index
number of the available public resource obtained by the processor
31 to the target user equipment, so that the target user equipment
performs data transmission through the available public resource
corresponding to the index number of the available public
resource.
[0219] Where, the available public resource is obtained from a
PHYConfig list by the target user equipment according to the index
number of the available public resource, the PHYConfig list is
broadcasted by the processor.
[0220] The transmitter 33, can be specifically configured to send
an extended access response RAR to the target user equipment, the
extended RAR carries the index number of the available public
resource.
[0221] The transmitter 33, can be further configured to, after the
processor 31 broadcasts the public resource configuration to the
user equipments and if downlink data need to be transmitted to the
target user equipment and the available public resource exist, send
the index number of the available public resource to the target
user equipment and send a physical downlink control channel order
PDCCH order to the target user equipment.
[0222] The base station according to the embodiments of the present
invention, broadcasts public resource configuration in advance,
when data arrive at the user equipment, only needs to send the
index number of the available public resource to the user
equipment, and then the user equipment can obtain the available
public resource corresponding to the index number of the available
public resource from the public resource configuration which is
broadcasted in advance, so as to complete the data transmission,
thus a reconfiguration message does not need to be sent to the user
equipment to perform re-configuration, thereby reducing the
signaling overhead.
[0223] Embodiments of the present invention provide another method
for resource configuration, as shown in FIG. 4, the method
includes:
[0224] 401, A user equipment receives public resource configuration
sent by a base station through a broadcast channel.
[0225] Where the public resource configuration includes a physical
resource configuration list PHYConfig list, the PHYConfig list can
specifically include: Index (available resource index number),
CQI-ReportConfig (channel quality report configuration, CQI
(channel quality indication, channel quality indication,
configuration of a physical resource used for reporting channel
quality)), soundingRS-UL-Config (uplink sounding reference signal
configuration, soundingRS (SRS, sounding reference signal,
configuration of a physical resource used for transmitting an
uplink SRS)), schedulingRequestConfig (scheduling request
configuration, configuration of a physical resource used for
transmitting an uplink scheduling request).
[0226] 402, A target user equipment of the user equipment sends
public resource requesting information to the base station, where
the target user equipment is in a desynchronization state, so that
the base station obtains an available public resource.
[0227] Specifically, if the target user equipment accesses through
an ordinary preamble (preamble) and accesses successfully, the
target user equipment sends a MSG3 message which carries a public
resource request to the base station.
[0228] Alternatively, if the public resource configuration further
includes access resources RACH resources, and the target user
equipment accesses through a dedicated preamble for public resource
contention, the target user equipment sends access information
which carries the dedicated preamble for the public resource
contention to the base station.
[0229] Where the dedicated preamble for the public resource
contention is selected from the RACH resources by the target user
equipment, the RACH resources can specifically include:
RA-PRACH-MaskIndex (available physical random access channel
resource index) and preambleInfo (available preamble resource).
[0230] Further, if the public resource configuration further
includes backoff parameters BackOff parameters, and there is no
available public resource, the indication information is used to
indicate the target user equipment to perform an operation of
backoff; and then the target user equipment performs the backoff
according to the backoff parameters BackOff parameters.
[0231] Where, the BackOff parameters can specifically include:
InitialBackOff (initial backoff parameter, used for backoff when
accessing for the first time), FailureBackOff (failure backoff
parameter, used for backoff when the access fails),
NoResourceBackOff (no resource backoff parameter, used for backoff
when the base station has no available public resource to allocate
to the UE), the target user equipment receives the indication
information sent by the base station,
[0232] Optionally, before the step 402, the method can further
include: the target user equipment enters into the
desynchronization state according to medium access control (MAC)
layer control information or a radio resource control protocol RRC
message.
[0233] 403, The target user equipment receives an index number of
the available public resource sent by the base station.
[0234] Specifically, if the public resource configuration further
includes access resources RACH resources, the target user equipment
receives an extended access response RAR sent by the base station,
the extended RAR carries the index number of the available public
resource.
[0235] 404, The target user equipment performs data transmission
through an available public resource corresponding to the index
number of the available public resource.
[0236] Where, the available public resource is obtained from the
PHYConfig list by the target user equipment according to the index
number of the available public resource.
[0237] 405, the target user equipment releases the available public
resource.
[0238] Specifically, when the target user equipment determines that
a buffer status report is 0, the target user equipment releases the
available public resource.
[0239] Alternatively, when a maximum resource occupancy time
exceeds a maximum occupancy time indicated in the public resource
configuration, the target user equipment releases the available
public resource.
[0240] Alternatively, the target user equipment releases the
available public resource according to the indication of the base
station.
[0241] For this embodiment, if the base station needs to transmit
downlink data to the target user equipment and the available public
resource exists, after receiving the public resource configuration
sent by the base station through the broadcast channel the target
user equipment receives the index number of the available public
resource and a physical downlink control channel order PDCCH order
sent by the base station; if the PDCCH order carries a dedicated
access resource configured for the target user equipment, the
target user equipment receives the downlink data through the
available public resource according to a schedule of the base
station.
[0242] Where, the available public resource is obtained from the
PHYConfig list by the target user equipment according to the index
number of the available public resource.
[0243] Alternatively, if the PDCCH order does not carry the
dedicated access resource configured for the target user equipment,
then after the target user equipment accesses successfully, the
target user equipment sends an identifier C-RNTI of the target user
equipment to the base station; and then the target user equipment
receives the downlink data through the available public resource
according to the indication of the base station.
[0244] In the method for resource configuration according to the
embodiments of the present invention, the user equipment receives
the public resource configuration broadcasted by the base station
in advance, when data arrive at the user equipment, an available
public resource corresponding to the index number of the available
public resource can be obtained from the public resource
configuration broadcasted in advance simply according to the
received index number of the available public resources, so as to
complete the data transmission, thus there is no need to receive a
reconfiguration message to perform re-configuration, thereby
reducing the signaling overhead.
[0245] Embodiments of the present invention provide another device
for resource configuration, as shown in FIG. 5, the entity of the
device can be a user equipment, the device includes: a first
receiving unit 51, a first sending unit 52, a second receiving unit
53, a transmitting unit 54, a desynchronization unit 55, a backoff
unit 56, a releasing unit 57, a third receiving unit 58, a second
sending unit 59, and a fourth receiving unit 510.
[0246] The first receiving unit 51, can be configured to receive
public resource configuration sent by a base station through a
broadcast channel, the public resource configuration includes a
physical resource configuration list PHYConfig list.
[0247] The first sending unit 52, can be configured to send public
resource requesting information to the base station after the first
receiving unit 51 receives the public resource configuration sent
by the base station through the broadcast channel, so that the base
station obtains an available public resource.
[0248] The first sending unit 52, can be specifically configured
to, if accessing through an ordinary preamble (preamble) and
accessing successfully, send a MSG3 message which carries a public
resource request to the base station.
[0249] The first sending unit 52, can be further specifically
configured to, if accessing through a dedicated preamble for public
resource contention, send access information which carries the
dedicated preamble for the public resource contention to the base
station, the dedicated preamble for the public resource contention
is selected from the RACH resources.
[0250] The second receiving unit 53, can be configured to receive
an index number of the available public resource sent by the base
station.
[0251] The second receiving unit 53, can be specifically configured
to receive an extended access response RAR sent by the base
station, the extended RAR carries the index number of the available
public resource.
[0252] The second receiving unit 53, can be further configured to,
after the first sending unit 52 sends the access information which
carries the dedicated preamble for the public resource contention
to the base station, if there is no available public resource,
receive indication information sent by the base station, the
indication information is used to indicate the target user
equipment to perform an operation of backoff.
[0253] The transmitting unit 54, can be configured to perform data
transmission through the available public resource corresponding to
the index number of the available public resource received by the
second receiving unit.
[0254] Where the available public resource is obtained from the
PHYConfig list by a target user equipment according to the index
number of the available public resource.
[0255] The desynchronization unit 55, can be configured to, before
the first sending unit 52 sends the public resource requesting
information to the base station, enter into the desynchronization
state according to medium access control (MAC) layer control
information or a radio resource control protocol RRC message.
[0256] The backoff unit 56, can be configured to perform the
backoff according to backoff parameters BackOff parameters after
the second receiving unit 53 receives the indication information
sent by the base station.
[0257] The releasing unit 57, can be configured to release the
available public resource after the transmitting unit performs the
data transmission through the available public resource
corresponding to the index number of the available public
resource.
[0258] The releasing unit 57, can be specifically configured to
release the available public resource when a buffer status report
is 0; or release the available public resource when a maximum
resource occupancy time exceeds a maximum occupancy time indicated
in the public resource configuration; or release the available
public resource according to the indication of the base
station.
[0259] The third receiving unit 58, can be configured to, after the
first receiving unit 51 receives the public resource configuration
sent by the base station through the broadcast channel, and when
the base station needs to transmit downlink data and the available
public resource exists, receive the index number of the available
public resource and a physical downlink control channel order PDCCH
order sent by the base station.
[0260] The third receiving unit 58, can be further configured to,
if the PDCCH order carries a dedicated access resource, receive the
downlink data through the available public resource according to a
schedule of the base station.
[0261] Where, the available public resource is obtained from the
PHYConfig list according to the index number of the available
public resource.
[0262] The second sending unit 59, is configured to, if the PDCCH
order received by the third receiving unit 58 does not carry the
dedicated access resource, then after accessing successfully, send
an identifier C-RNTI of the target user equipment to the base
station.
[0263] The fourth receiving unit 510, can be configured to, after
the second sending unit 59 sends the identifier C-RNTI of the
target user equipment to the base station, receive the downlink
data through the available public resource according to the
indication of the base station.
[0264] In the device for resource configuration according to the
embodiments of the present invention, through receiving the public
resource configuration broadcasted by the base station in advance,
when data arrive, the available public resource corresponding to
the index number of the available public resource can be obtained
from the public resource configuration broadcasted in advance
simply according to the received index number of the available
public resource, so as to complete the data transmission, thus
there is no need to receive a reconfiguration message to perform
re-configuration, thereby reducing the signaling overhead.
[0265] Embodiments of the invention provide a user equipment, as
shown in FIG. 6, the user equipment includes: a receiver 61, a
transmitter 62, and a processor 63.
[0266] The receiver 61, can be configured to receive public
resource configuration sent by a base station through a broadcast
channel, the public resource configuration includes a physical
resource configuration list PHYConfig list.
[0267] The receiver 61, can be further configured to receive an
index number of the available public resource sent by the base
station.
[0268] The transmitter 62, can be configured to, after the receiver
61 receives the public resource configuration sent by the base
station through the broadcast channel, send public resource
requesting information to the base station, so that the base
station obtains the available public resource.
[0269] The processor 63, can be configured to perform data
transmission through the available public resource corresponding to
the index number of the available public resource received by the
receiver 61, where the available public resource is obtained from
the PHYConfig list by the target user equipment according to the
index number of the available public resource.
[0270] The receiver 61, can be specifically configured to receive
an extended access response RAR sent by the base station, the
extended RAR carries the index number of the available public
resource.
[0271] The receiver 61, can be further configured to, after the
transmitter sends access information which carries the dedicated
preamble for public resource contention to the base station, and if
there is no available public resource, receive indication
information sent by the base station, the indication information is
used to indicate the target user equipment to perform an operation
of backoff.
[0272] The receiver 61, can be further configured to, after
receiving the public resource configuration sent by the base
station through the broadcast channel, and when the base station
needs to transmit downlink data and the available public resource
exists, receive the index number of the available public resource
and a physical downlink control channel order PDCCH order sent by
the base station.
[0273] The receiver 61, can be further configured to, if the PDCCH
order carries a dedicated access resource, receive the downlink
data through the available public resource according to a schedule
of the base station.
[0274] Where, the available public resource is obtained from the
PHYConfig list according to the index number of the available
public resource.
[0275] The receiver 61, can be further configured to receive the
downlink data through the available public resource according to
the indication of the base station after the transmitter 62 sends
an identifier C-RNTI of the target user equipment to the base
station.
[0276] The transmitter 62, can be specifically configured to, if
accessing through an ordinary preamble (preamble) and accessing
successfully, send a MSG3 message which carries a public resource
request to the base station.
[0277] The transmitter 62, can be further configured to, if the
PDCCH order received by the receiver does not carry the dedicated
access resource, then after accessing successfully, send the
identifier C-RNTI of the target user equipment to the base
station.
[0278] The processor 63, can be further configured to, before the
transmitter sends the public resource requesting information to the
base station, enter into the desynchronization state according to
medium access control (MAC) layer control information or a radio
resource control protocol RRC message.
[0279] The processor 63, can be further configured to perform the
backoff according to backoff parameters BackOff parameters after
the receiver 61 receives the indication information sent by the
base station.
[0280] The processor 63, can be further configured to release the
available public resource after performing the data transmission
through the available public resource corresponding to the index
number of the available public resource.
[0281] The processor 63, can be specifically configured to release
the available public resource when a buffer status report is 0; or
release the available public resource when a maximum resource
occupancy time exceeds a maximum occupancy time indicated in the
public resource configuration; or release the available public
resource according to an indication of the base station.
[0282] The device for resource configuration according to the
embodiments of the present invention can implement the method
embodiments provided above, please refer to the descriptions in the
method embodiments for the specific function implementation, which
will not be repeated here. The method and the device for resource
configuration according to the embodiments of the present invention
can be applied to the field of communication system, but not
limited to this.
[0283] Those skilled in the art may understand that all or part of
the steps in the methods of the embodiments of the present
invention can be implemented by hardware under the indication of a
program. The program may be stored in a computer readable storage
medium and when the program is executed, processes of the method
embodiments according to the present invention may be included.
Where, the storage medium may be a magnetic disk, an optical disk,
a read only memory (Read-Only Memory, ROM), or a random access
memory (Random Access Memory, RAM), etc.
[0284] The above mentioned are only specific embodiments of the
present invention, however the scope of the present invention is
not limited to this, modifications or replacements can be easily
thought of within the scope of the present invention by any
technical person familiar with the art, all of which should fall
within the scope of the present invention. Therefore, the scope of
the present invention is defined by the scope of the claims.
* * * * *