WO2016074201A1 - 随机接入过程中bsr的上报方法和装置 - Google Patents

随机接入过程中bsr的上报方法和装置 Download PDF

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Publication number
WO2016074201A1
WO2016074201A1 PCT/CN2014/091036 CN2014091036W WO2016074201A1 WO 2016074201 A1 WO2016074201 A1 WO 2016074201A1 CN 2014091036 W CN2014091036 W CN 2014091036W WO 2016074201 A1 WO2016074201 A1 WO 2016074201A1
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Prior art keywords
bsr
random access
message
cellular
access procedure
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PCT/CN2014/091036
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English (en)
French (fr)
Inventor
曹振臻
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华为技术有限公司
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Priority to PCT/CN2014/091036 priority Critical patent/WO2016074201A1/zh
Priority to CN201480036867.0A priority patent/CN105874869B/zh
Publication of WO2016074201A1 publication Critical patent/WO2016074201A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/14—Mobility data transfer between corresponding nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access

Definitions

  • the embodiments of the present invention relate to a wireless communication technology, and in particular, to a BSR reporting method and apparatus in a random access procedure.
  • D2D communication technology refers to the fact that in the wireless communication, the data plane does not pass through the transit device (such as a base station or an access point), but in the user equipment (User Equipment; :UE) A technique for direct communication between.
  • the transit device such as a base station or an access point
  • UE User Equipment
  • D2D communication technology can be applied to wireless networks to reduce network forwarding delays while improving resource utilization and network capacity.
  • the UE may belong to multiple D2D communication groups and simultaneously communicate with multiple D2D communication groups.
  • the UE if the UE has D2D data to be sent, the UE triggers a D2D buffer status report (BSR), where the D2D BSR includes a buffer status corresponding to one or more D2D communication groups.
  • BSR D2D buffer status report
  • the UE may request the uplink resource through the random access procedure, and report the D2D BSR to the base station in the third message in the random access procedure.
  • the UE transmits uplink cellular data, it is necessary to report the cellular BSR to the base station.
  • the UE since the priorities of the regular cellular BSR and the periodic cellular BSR are both higher than the priority of the D2D BSR, if the UE triggers the D2D BSR and triggers the regular cellular BSR or the periodic cellular BSR, If the UE reports the D2D BSR in the third message, the UE also reports the regular cellular BSR or the periodic cellular BSR to the base station, which results in high complexity in the random access process.
  • the embodiment of the present invention provides a method and a device for reporting a BSR in a random access process, which are used to solve the problem that the UE is highly complex in the random access process due to the simultaneous transmission of the cellular BSR and the D2D BSR. problem.
  • an embodiment of the present invention provides a method for reporting a BSR in a random access process, including:
  • the first UE When the first user equipment UE has device-to-device D2D data waiting to be sent, the first UE triggers a D2D buffer status report BSR, and receives an uplink cellular resource sent by the base station;
  • the first UE reports the message 3 of the determined random access procedure to the base station by using the uplink cellular resource;
  • the first UE receives signaling sent by the base station, and determines, according to the signaling, whether the random access procedure is successful.
  • the type of the cellular BSR includes: a regular cellular BSR, a periodic cellular BSR, and a padded cellular BSR.
  • the type of the D2D BSR includes: a regular D2D BSR and a periodic D2D BSR.
  • the first UE determines whether The cellular BSR is triggered, and when it is determined that the cellular BSR is triggered, according to the type of the triggered cellular BSR, whether the D2D BSR is carried in the message 3 of the random access procedure, specifically includes:
  • the first UE If the type of the triggered cellular BSR is a regular cellular BSR, the first UE carries the regular cellular BSR in message three of the random access procedure, and is not carried in message 3 of the random access procedure.
  • the conventional cellular BSR is carried in message three.
  • the first UE determines whether The cellular BSR is triggered, and when it is determined that the cellular BSR is triggered, according to the type of the triggered cellular BSR, whether the D2D BSR is carried in the message 3 of the random access procedure, specifically includes:
  • the first UE If the type of the cellular BSR that has been triggered is a periodic cellular BSR, the first UE carries the periodic cellular BSR in message 3 of the random access procedure, and is not carried in message 3 of the random access procedure.
  • the method further includes:
  • the first UE If the first UE does not trigger the cellular BSR, the first UE carries the D2D BSR in message 3 of the random access procedure.
  • a sixth possible implementation manner of the first aspect if the first UE is in the random access If the D2D BSR is carried in the message 3 of the process, the padding cell BSR is no longer carried in the message 3 of the random access procedure.
  • the first UE receives the signaling sent by the base station, and determines whether the random access procedure is successful according to the signaling, specifically:
  • the first UE determines that the random access is successful.
  • the first UE receives the signaling sent by the base station, and determines, according to the signaling, whether the random access procedure is successful, including:
  • the first UE determines to be randomly connected. The success is successful; wherein the truncated D2D BSR is part of the content of the D2D BSR that is sent by using the uplink cellular resource.
  • the first UE receives the signaling sent by the base station, and determines, according to the signaling, whether the random access procedure is successful, including:
  • the signaling is random access conflict resolution signaling
  • the random access conflict resolution signaling carries a random access conflict resolution identifier
  • the message 3 of the random access procedure carries a D2D BSR or a cellular BSR
  • the random access conflict resolution signaling includes a random access conflict resolution dedicated media access control MAC layer Baotou.
  • the method further includes:
  • the first UE receives the D2D resource scheduling message sent by the base station; the D2D resource scheduling message is allocated by the base station to the first UE according to the D2D BSR carried in the message 3 of the random access procedure.
  • the first UE sends data to the second UE according to the D2D resource scheduling message.
  • the D2D resource scheduling message is carried by an RRC message, and the The serving cell identifier corresponding to the D2D resource in the D2D resource scheduling message.
  • the method further includes:
  • the first UE determines that the time synchronization timer TAT corresponding to the serving cell times out, the first UE clears the D2D resource allocated by the base station corresponding to the serving cell; the serving cell is the cell where the first UE is located. .
  • the method further includes:
  • the first UE determines that the time synchronization timer TAT corresponding to the serving cell times out, it is determined whether the resource used in the D2D hybrid automatic repeat request HARQ process corresponding to the serving cell is allocated by the base station;
  • the embodiment of the present invention provides a method for reporting a BSR in a random access process, including:
  • the base station sends the uplink cellular resource to the first UE when the first user equipment UE has the device waiting for the D2D data to be sent;
  • the base station receives the message 3 of the random access procedure that is sent by the first UE by using the uplink cell resource, and whether the D2D BSR is carried in the message 3 of the random access procedure is determined by the first UE according to the determining Triggering the type of cellular BSR to determine;
  • the base station feeds back signaling to the first UE according to the message 3 of the random access procedure, so that the first UE determines whether the random access procedure is successful according to the signaling.
  • the type of the cellular BSR includes: a regular cellular BSR, a periodic cellular BSR, and a padded cellular BSR.
  • the type of the D2D BSR includes: a regular D2D BSR and a periodic D2D BSR.
  • the first one of the second aspect to the second possible implementation manner of the second aspect in a third possible implementation manner of the second aspect, if the first UE has been triggered a cellular BSR, and the type of the already triggered cellular BSR is a conventional cellular BSR, and the conventional UE receives the conventional message in the message 3 of the random access procedure sent by the first UE through the uplink cellular resource.
  • the D2D BSR is not carried in the message 3 of the random access procedure; if the first UE has triggered the cellular BSR, and the type of the triggered cellular BSR is not a regular cellular BSR, The D2D BSR is carried in the message 3 of the random access procedure that is sent by the first UE by using the uplink cell resource, and the conventional cellular BSR is not carried in the message III of the random access procedure.
  • the first one of the second aspect to the second possible implementation manner of the second aspect in the fourth possible implementation manner of the second aspect, if the first UE has been triggered a cell BSR, and the type of the cell BSR that has been triggered is a periodic cell BSR, and the cycle received by the base station by the first UE by using the uplink cell resource is carried in the message III of the random access procedure.
  • the D2D BSR is not carried in the message 3 of the random access procedure; if the first UE has triggered the cellular BSR, and the type of the triggered cellular BSR is not a periodic cellular BSR, then The D2D BSR is carried in the message 3 of the random access procedure sent by the first UE by using the uplink cell resource, and the periodic cellular BSR is not carried in the message 3 of the random access procedure.
  • the first one of the second aspect to the second possible implementation manner of the second aspect in the fifth possible implementation manner of the second aspect, if the first UE does not trigger And a cellular BSR, where the D2D BSR is carried in the message 3 of the random access procedure sent by the first UE by using the uplink cellular resource.
  • the sixth possible implementation manner of the second aspect if the random access procedure is carried in message three If the D2D BSR is present, the padding cell BSR is no longer carried in the message 3 of the random access procedure.
  • the base station feeds back signaling to the first UE, where the first UE is Determining whether the random access process is successful according to the signaling, specifically includes:
  • the base station sends signaling that carries the D2D resource to the first UE, so that the first UE determines that the random access is successful.
  • the base station feeds back signaling to the first UE, where the first UE is Determining whether the random access process is successful according to the signaling, specifically includes:
  • the base station sends the signaling that carries the uplink cell resource to the first UE, where the first UE determines that the random access is successful;
  • the truncated D2D BSR is part of the D2D BSR that is transmitted by using the uplink cellular resource.
  • the base station feeds back signaling to the first UE, for the first UE Determining whether the random access process is successful according to the signaling, specifically includes:
  • the base station sends a random access conflict resolution signaling to the first UE, and the random access conflict resolution signaling carries The random access conflict resolution identifier is used by the first UE to determine that the random access is successful.
  • the random access conflict resolution signaling includes a random access conflict resolution dedicated media access control MAC layer Baotou.
  • the method further includes:
  • the base station sends a D2D resource scheduling message to the first UE, where the first UE sends data to the second UE according to the D2D resource scheduling message; the D2D resource scheduling message is that the base station according to the The D2D BSR carried in message 3 of the random access procedure is allocated to the signaling of the first UE.
  • the D2D resource scheduling message is carried by an RRC message, and the The serving cell identifier corresponding to the D2D resource in the D2D resource scheduling message.
  • an embodiment of the present invention provides a UE, including:
  • a receiving module configured to: when the first user equipment UE has equipment to device D2D data waiting to be sent, Triggering a D2D buffer status report BSR, and receiving an uplink cellular resource sent by the base station;
  • a processing module configured to determine whether the cellular BSR has been triggered, and when determining that the cellular BSR is triggered, determining whether to carry the D2D BSR in message three of the random access procedure according to the type of the triggered cellular BSR;
  • a sending module configured to report the message 3 of the determined random access procedure to the base station by using the uplink cellular resource
  • the receiving module is configured to receive signaling sent by a base station
  • the processing module is configured to determine, according to the signaling, whether the random access procedure is successful, after the receiving module receives the signaling sent by the base station.
  • the type of the cellular BSR includes: a regular cellular BSR, a periodic cellular BSR, and a padded cellular BSR.
  • the type of the D2D BSR includes: a regular D2D BSR and a periodic D2D BSR.
  • the processing module is further configured to:
  • the conventional cellular BSR is carried in the message 3 of the random access procedure, and the D2D BSR is not carried in the message 3 of the random access procedure; If the type of the triggered BSR is not a regular cellular BSR, the D2D BSR is carried in the message 3 of the random procedure, and the conventional cellular BSR is not carried in the message 3 of the random access procedure. .
  • the processing module is further configured to:
  • the periodic cellular BSR is carried in the message 3 of the random access procedure, and the D2D BSR is not carried in the message 3 of the random access procedure; If the type of the cellular BSR that has been triggered is not a periodic cellular BSR, the D2D BSR is carried in the message 3 of the random procedure, and the periodic cellular BSR is not carried in the message 3 of the random access procedure. .
  • the processing module is further configured to:
  • the first UE does not trigger the cellular BSR, it is carried in message 3 of the random access procedure.
  • the D2D BSR If the first UE does not trigger the cellular BSR, it is carried in message 3 of the random access procedure.
  • the D2D BSR If the first UE does not trigger the cellular BSR, it is carried in message 3 of the random access procedure.
  • the D2D BSR If the first UE does not trigger the cellular BSR, it is carried in message 3 of the random access procedure.
  • a sixth possible implementation manner of the third aspect if the first UE is in a random access process If the D2D BSR is carried in the third message, the padded cellular BSR is no longer carried in the message 3 of the random access procedure.
  • the processing module is further configured to:
  • the first UE determines that the random access is successful.
  • processing module is further configured to:
  • the first UE determines to be randomly connected. The success is successful; wherein the truncated D2D BSR is part of the content of the D2D BSR that is sent by using the uplink cellular resource.
  • the processing module is further configured to:
  • the signaling is random access conflict resolution signaling, and the random access conflict resolution signaling carries a random access conflict resolution identifier, and the message 3 carries a D2D BSR or a cellular BSR, the first The UE determines that the random access is successful.
  • the random access conflict resolution signaling includes a random access conflict resolution dedicated media access control MAC layer Baotou.
  • the receiving module is further configured to:
  • the D2D resource scheduling message is a signaling that is allocated by the base station to the first UE according to a D2D BSR carried in message 3 of the random access procedure;
  • the sending module is configured to send data to the second UE according to the D2D resource scheduling message.
  • the D2D resource scheduling message is carried by the RRC message, and the serving cell identifier corresponding to the D2D resource in the D2D resource scheduling message is indicated in the RRC message.
  • the processing module is further configured to:
  • the D2D resource allocated by the base station corresponding to the serving cell is cleared; the serving cell is the cell where the first UE is located.
  • the processing module is further configured to:
  • an embodiment of the present invention provides a base station, including:
  • a sending module configured to send an uplink cellular resource to the first UE when the first user equipment UE has a device waiting for the D2D data to be sent;
  • a receiving module configured to receive a message 3 of the random access procedure that is sent by the first UE by using the uplink cellular resource, and whether the D2D BSR is carried in the message III of the random access procedure is determined by the first UE according to the determining Trigger the type of cellular BSR to determine;
  • the sending module is further configured to feed back signaling to the first UE according to the message 3 of the random access procedure, so that the first UE determines whether the random access procedure is successful according to the signaling.
  • the type of the cellular BSR includes: a regular cellular BSR, a periodic cellular BSR, and a padded cellular BSR.
  • the type of the D2D BSR includes: a regular D2D BSR and a periodic D2D BSR.
  • the second possible implementation manner of the first to fourth aspects of the fourth aspect in a third possible implementation manner of the fourth aspect, if the first UE has been triggered a cellular BSR, and the type of the already triggered cellular BSR is a conventional cellular BSR, and the conventional UE receives the conventional message in the message 3 of the random access procedure sent by the first UE through the uplink cellular resource.
  • the D2D BSR is not carried in the message 3 of the random access procedure; if the first UE has triggered the cellular BSR, and the triggered cellular BSR
  • the type of the random access procedure is not included in the conventional cellular BSR, and the message that the first UE receives the D2D BSR in the message 3 of the random access procedure sent by the uplink cellular resource, and the random access procedure
  • the conventional cellular BSR is not carried in the third.
  • the second possible implementation manner of the first to fourth aspects of the fourth aspect in a fourth possible implementation manner of the fourth aspect, if the first UE has been triggered a cell BSR, and the type of the cell BSR that has been triggered is a periodic cell BSR, and the cycle received by the base station by the first UE by using the uplink cell resource is carried in the message III of the random access procedure.
  • the D2D BSR is not carried in the message 3 of the random access procedure; if the first UE has triggered the cellular BSR, and the type of the triggered cellular BSR is not a periodic cellular BSR, then The D2D BSR is carried in the message 3 of the random access procedure sent by the first UE by using the uplink cell resource, and the periodic cellular BSR is not carried in the message 3 of the random access procedure.
  • the second possible implementation manner of the first to fourth aspects of the fourth aspect in the fifth possible implementation manner of the fourth aspect, if the first UE does not trigger And a cellular BSR, where the D2D BSR is carried in the message 3 of the random access procedure sent by the first UE by using the uplink cellular resource.
  • a sixth possible implementation manner of the fourth aspect if the random access procedure is carried in message three If the D2D BSR is present, the padding cell BSR is no longer carried in the message 3 of the random access procedure.
  • the sending module is further configured to:
  • the signaling of the D2D resource is sent to the first UE, so that the first UE determines that the random access is successful.
  • the sending module is further configured to:
  • the message 3 of the random access procedure carries the truncated D2D BSR, sending, to the first UE, signaling that carries the uplink cell resource, where the first UE determines that the random access is successful; wherein the truncation is successful.
  • the D2D BSR is part of the D2D BSR that is transmitted using the uplink cellular resource.
  • the sending module Also used for:
  • the random access conflict resolution signaling is sent to the first UE, and the random access conflict resolution signaling carries the random access
  • the conflict resolution identifier is used by the first UE to determine that the random access is successful.
  • the random access conflict resolution signaling includes a random access conflict resolution dedicated media access control MAC layer Baotou.
  • the sending module is further configured to:
  • the D2D BSR carried in message 3 of the process is allocated to the signaling of the first UE.
  • the D2D resource scheduling message is carried by an RRC message, and the The serving cell identifier corresponding to the D2D resource in the D2D resource scheduling message.
  • the method and the device for reporting the BSR in the random access process provided by the present invention, when the first UE has D2D data waiting to be sent, triggers the D2D BSR, and receives the uplink cellular resource sent by the base station, and the first UE determines whether the cellular has been triggered.
  • the resource is reported to the base station, and receives the signaling returned by the base station, and determines whether the random access procedure is successful according to the signaling.
  • the first UE determines whether the cellular BSR has been triggered, and determines whether to carry the D2D BSR in the third message of the random access procedure according to the type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the third message, thereby reducing The complexity of the random access process competition resolution.
  • Embodiment 1 is a schematic flowchart of Embodiment 1 of a method for reporting a BSR in a random access process according to the present invention
  • Embodiment 2 is a schematic flowchart of Embodiment 2 of a BSR reporting method in a random access process of the present invention
  • Embodiment 3 is a schematic flowchart of Embodiment 3 of a method for reporting a BSR in a random access process according to the present invention
  • Embodiment 4 is a schematic flowchart of Embodiment 4 of a method for reporting a BSR in a random access process according to the present invention
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a UE according to the present invention.
  • FIG. 6 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • FIG. 1 is a schematic flowchart of Embodiment 1 of a method for reporting a BSR in a random access process according to the present invention.
  • the embodiment of the invention provides a method for reporting a BSR in a random access procedure. As shown in FIG. 1, the method in this embodiment may include:
  • Step 101 When the first UE has D2D data waiting to be sent, the first UE triggers the D2D BSR, and receives the uplink cellular resource sent by the base station.
  • the first UE if the first UE has D2D data to be transmitted, the first UE triggers the D2D BSR. At this time, if no uplink cellular resource is reported to the D2D BSR, the first UE sends a scheduling request to the base station through the random access procedure, requesting the base station to allocate a certain uplink cellular resource.
  • the UE first sends a message (MSG1), that is, a preamble sequence code, to the base station, and after receiving the message 1 (MSG1), the base station returns a message 2 (MSG2) to the first UE, and the message 2 (MSG2)
  • MSG1 message 1
  • MSG2 message 2
  • the uplink cell resource is carried by the first UE to report the uplink cellular resource allocated by the base station to the D2D BSR.
  • Step 102 The first UE determines whether the cellular BSR has been triggered, and determines, when the cellular BSR is triggered, whether to carry the D2D BSR in the message 3 of the random access procedure according to the type of the triggered cellular BSR.
  • the first UE after receiving the uplink cellular resource sent by the base station, the first UE first determines whether the cellular BSR is triggered, and when it is determined that the cellular BSR is triggered, according to the triggered cellular BSR.
  • the type determines whether the triggered D2D BSR is carried in message three (MSG3) of the random access procedure.
  • Step 103 The first UE reports the message 3 of the determined random access procedure to the base station by using the uplink cellular resource.
  • the first UE determines the type of the BSR carried in the message three (MSG3) of the random access procedure according to the type of the triggered BSR, that is, determines in the message three (MSG3). Which type of BSR is carried, and the determined message 3 (MSG3) carrying the BSR is reported to the base station through the uplink cellular resource.
  • Step 104 The first UE receives the signaling sent by the base station, and determines, according to the signaling, whether the random access procedure is successful.
  • the base station After the first UE reports the message 3 (MSG3) carrying the BSR to the base station, the base station generates a signaling corresponding to the BSR according to the BSR, and returns the signaling to the first UE.
  • the UE determines, according to the received signaling, whether the random access procedure is successfully completed.
  • the reporting method of the BSR in the random access process provided by the embodiment of the present invention, when the first UE has D2D data waiting to be sent, triggers the D2D BSR, and receives the uplink cellular resource sent by the base station, and the first UE determines whether the cellular has been triggered.
  • the BSR and when it is determined that the cellular BSR is triggered, according to the type of the triggered cellular BSR, whether the D2DBSR is carried in the message 3 of the random access procedure, and the first UE passes the determined message of the random access procedure through the uplink cellular resource. It is reported to the base station, and receives the signaling returned by the base station, and determines whether the random access procedure is successful according to the signaling.
  • the first UE determines whether the cellular BSR has been triggered, and determines whether to carry the D2D BSR in the third message of the random access procedure according to the type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the third message, thereby reducing The complexity of the random access process competition resolution.
  • FIG. 2 is a schematic flowchart diagram of Embodiment 2 of a BSR reporting method in a random access process according to the present invention.
  • the embodiment of the invention provides a method for reporting a BSR in a random access procedure. As shown in FIG. 2, the method in this embodiment may include:
  • Step 201 The base station sends an uplink cellular resource to the first UE when the first UE has D2D data waiting to be sent.
  • the first UE if the first UE has D2D data to be transmitted, the first UE triggers the D2D BSR.
  • the uplink cell resource does not report the D2D BSR to the base station, the first UE sends a scheduling request to the base station through the random access procedure, and after receiving the scheduling request sent by the first UE, the base station allocates a certain amount to the first UE.
  • Upstream cellular resources for the first UE The D2D BSR is reported by the uplink cellular resource.
  • Step 202 The base station receives the message 3 of the random access procedure sent by the first UE by using the uplink cellular resource, and whether the D2D BSR is carried in the message 3 of the random access procedure is determined by the first UE according to the determined type of the triggered cellular BSR. of.
  • the first UE after the base station allocates the uplink cell resource to the first UE, the first UE first determines whether the cellular BSR is triggered. When it is determined that the cellular BSR is triggered, determining whether the random access process is performed according to the type of the triggered cellular BSR.
  • the message 3 (MSG3) carries the triggered D2D BSR, and the determined message 3 (MSG3) carrying the BSR is reported to the base station through the uplink cellular resource.
  • Step 203 The base station feeds back signaling to the first UE according to the message 3 of the random access procedure, so that the first UE determines, according to the signaling, whether the random access procedure is successful.
  • the base station after receiving the message 3 of the random access procedure carrying the BSR sent by the first UE, the base station generates signaling corresponding to the type of the BSR carried, and returns the signaling to the And the first UE, so that the first UE determines, according to the received signaling, whether the random access procedure is successfully completed.
  • the base station sends an uplink cellular resource to the first UE when the first UE has D2D data waiting to be sent, and the base station receives the random connection sent by the first UE by using the uplink cellular resource.
  • a UE feedbacks signaling, so that the first UE determines whether the random access procedure is successful according to the signaling.
  • Whether the D2D BSR is carried in the message 3 of the random access procedure received by the base station is determined by the first UE according to the determined type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the message III, thereby reducing the type of the BSR.
  • the complexity of the random access process competition resolution is determined by the first UE according to the determined type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the message III, thereby reducing the type of the BSR.
  • the types of the cellular BSRs include: a regular cellular BSR, a periodic cellular BSR, and a padded cellular BSR.
  • the type of the D2D BSR includes: a regular D2D BSR and a periodic D2D BSR.
  • FIG. 3 is a schematic flowchart of Embodiment 3 of a method for reporting a BSR in a random access process according to the present invention.
  • the embodiment of the present invention provides a method for reporting a BSR in a random access procedure.
  • a method for reporting a BSR in a random access procedure and a reporting method for a BSR in a random access procedure are implemented.
  • an embodiment of determining whether the cellular BSR has been triggered by the first UE and determining whether to carry the D2D BSR in the message 3 of the random access procedure according to the determination result is described in detail.
  • Step 301 When the first UE has D2D data waiting to be sent, the first UE triggers the D2D BSR, and receives the uplink cellular resource sent by the base station.
  • Step 302 The first UE determines whether the cellular BSR has been triggered. If yes, go to step 203. Otherwise, go to step 205.
  • Step 303 The first UE determines whether the type of the cellular BSR that has been triggered is a regular cellular BSR.
  • step 304 If yes, go to step 304. Otherwise, go to step 305.
  • Step 304 The first UE carries the conventional cellular BSR in the third message of the random access procedure, and does not carry the D2D BSR in the third message of the random access procedure.
  • the normal cellular BSR is only reported to the base station in the message 3 (MSG3) of the random access procedure, and the D2D BSR is not required to be reported.
  • Step 305 The first UE carries the D2D BSR in the third message of the random process, and does not carry the regular cellular BSR in the third message of the random access procedure.
  • the first UE if the first UE does not trigger the regular cellular BSR, or triggers other cellular BSRs other than the regular cellular BSR, such as a periodic cellular BSR, at this time, the first UE is in the random access procedure message three ( The MSG3) carries the D2D BSR, does not carry the conventional cellular BSR, and reports the message 3 of the random access procedure to the base station.
  • the MSG3 carries the D2D BSR, does not carry the conventional cellular BSR, and reports the message 3 of the random access procedure to the base station.
  • Step 306 The first UE reports the message 3 of the determined random access procedure to the base station by using the uplink cellular resource.
  • Step 307 The first UE receives scheduling signaling sent by the base station, and determines, according to the scheduling signaling, whether the random access procedure is successful.
  • the base station After the first UE reports the message 3 of the random access procedure carrying the BSR to the base station, the base station generates a signaling corresponding to the type of the BSR carried in the message 3 of the random access procedure. And returning the signaling to the first UE, and the first UE determines, according to the received signaling, whether the random access procedure is successfully completed.
  • the reporting method of the BSR in the random access process provided by the embodiment of the present invention, when the first UE has When the D2D data is waiting to be sent, the D2D BSR is triggered, and the uplink cellular resource sent by the base station is received.
  • the first UE determines whether the cellular BSR has been triggered, and determines whether the cellular BSR is triggered according to the type of the triggered cellular BSR.
  • the D2D BSR is carried in the message 3 of the random access procedure, and the first UE reports the message 3 of the determined random access procedure to the base station through the uplink cellular resource, and receives the signaling returned by the base station, and determines the random access according to the signaling. Whether the process was successful.
  • the first UE determines whether the cellular BSR has been triggered, and determines whether to carry the D2D BSR in the third message of the random access procedure according to the type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the third message, thereby reducing The complexity of the random access process competition resolution.
  • FIG. 4 is a schematic flowchart diagram of Embodiment 4 of a BSR reporting method in a random access process according to the present invention.
  • the embodiment of the present invention provides a method for reporting a BSR in a random access procedure, which is based on the first embodiment of the BSR reporting method in the random access process and the second embodiment of the BSR reporting method in the random access process.
  • the embodiment of determining whether the cellular BSR has been triggered by the first UE and determining whether to carry the D2D BSR in the message 3 of the random access procedure according to the determination result is described in detail.
  • Step 401 When the first UE has D2D data waiting to be sent, the first UE triggers the D2D BSR, and receives the uplink cellular resource sent by the base station.
  • Step 402 The first UE determines whether the cellular BSR has been triggered. If yes, go to step 403. Otherwise, go to step 405.
  • Step 403 The first UE determines whether the type of the cellular BSR that has been triggered is a periodic cellular BSR.
  • step 404 If yes, go to step 404. Otherwise, go to step 405.
  • Step 404 The first UE carries the periodic cellular BSR in the third message of the random access procedure, and does not carry the D2D BSR in the third message of the random access procedure.
  • the periodic cellular BSR is only reported to the base station in the message 3 (MSG3) of the random access procedure, and the D2D BSR is not required to be reported.
  • Step 405 The first UE carries the D2D BSR in the third message of the random process, and does not carry the periodic cellular BSR in the third message of the random access procedure.
  • the first UE if the first UE does not trigger the periodic cellular BSR, or triggers other cellular BSRs other than the periodic cellular BSR, at this time, the first UE only has the message 3 of the random access procedure.
  • MSG3 carries the D2D BSR, does not carry the periodic cellular BSR, and reports the message 3 of the random access procedure to the base station.
  • Step 406 The first UE reports the message 3 of the determined random access procedure to the base station by using the uplink cellular resource.
  • Step 407 The first UE receives scheduling signaling sent by the base station, and determines, according to the scheduling signaling, whether the random access procedure is successful.
  • Step 406-step 407 is similar to step 306-step 307, and details are not described herein again.
  • the reporting method of the BSR in the random access process provided by the embodiment of the present invention, when the first UE has D2D data waiting to be sent, triggers the D2D BSR, and receives the uplink cellular resource sent by the base station, and the first UE determines whether the cellular has been triggered.
  • the BSR and determining that the cellular BSR is triggered, according to the type of the triggered cellular BSR, determining whether to carry the D2D BSR in the third message of the random access procedure, the first UE will determine the message of the random access procedure through the uplink cellular
  • the resource is reported to the base station, and receives the signaling returned by the base station, and determines whether the random access procedure is successful according to the signaling.
  • the first UE determines whether the cellular BSR has been triggered, and determines whether to carry the D2D BSR in the third message of the random access procedure according to the type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the third message, thereby reducing The complexity of the random access process competition resolution.
  • the padded cellular BSR is no longer carried in message 3 of the random access procedure.
  • the priorities of the cellular BSR and the D2D BSR are: a normal cellular BSR, a periodic cellular BSR, a D2D BSR, and a padded cellular BSR.
  • D2D is carried in message 3 of the random access procedure.
  • the padded cellular BSR is also carried in the message 3 and reported to the base station, thereby increasing the complexity of the random access procedure competition resolution.
  • the first type if the signaling carries the D2D resource, and the message 3 in the random access procedure carries the D2D
  • the BSR determines that the first UE succeeds in random access.
  • the base station when the first UE reports the D2D BSR to the base station in the message 3 of the random access procedure, the base station returns D2D resource scheduling signaling to the first UE, and at this time, the first UE is configured according to the received D2D resource.
  • the scheduling signaling determines whether the D2D resource is included in the D2D resource scheduling signaling. If it is determined that the D2D resource is available, the first UE determines that the random access is successful, and if not, the random access fails.
  • the second type if the signaling carries the uplink cellular resources, and the message 3 of the random access procedure carries the truncated D2D BSR, and the first UE does not currently have uplink cellular data waiting to be sent, the first UE determines that the random access is successful.
  • the D2D BSR truncated D2D BSR
  • the BSR information of the three D2D communication groups is included in the D2D BSR. Since the uplink cellular resources cannot fully carry the BSR content of the three D2D communication groups, the first UE only reports the BSR content of the two D2D communication groups. The BSR content of the D2D communication group is to intercept the D2D BSR.
  • the first UE determines that the random access is successful.
  • the uplink cellular data is other uplink data except the D2D BSR.
  • the third type if the signaling is the random access conflict resolution signaling, and the random access conflict resolution signaling carries the random access conflict resolution identifier, and the message 3 of the random access procedure carries the D2D BSR or the cellular BSR, A UE determines that the random access is successful.
  • the random access conflict resolution signaling includes a random access conflict resolution (Medium Access Control, MAC) layer sub-packet, and correspondingly, the random access conflict resolution identifier may be included in the MAC layer sub-packet header.
  • the random access conflict resolution signaling may be a MAC layer control element, and the corresponding random access conflict resolution identifier may be a random access conflict resolution identifier in the MAC layer control element. If the first UE sends the message 3 carrying the D2D BSR or the cellular BSR to the base station, the signaling returned by the base station to the first UE is random access conflict resolution signaling, and the random access conflict resolution signaling carries random When the conflict resolution identifier is accessed, the first UE determines that the random access is successful.
  • MAC Medium Access Control
  • the first UE receives the D2D resource scheduling message sent by the base station; and the first UE sends the data to the second UE according to the D2D resource scheduling message.
  • the D2D resource scheduling message is a signaling that the base station allocates to the first UE according to the D2D BSR carried in the message 3 of the random access procedure.
  • the D2D resource scheduling message is carried by the RRC message, and the serving cell identifier corresponding to the D2D resource in the D2D resource scheduling message is indicated in the RRC message.
  • the D2D resource scheduling message may be carried by a physical downlink control channel (Physical Downlink Control Channel; PDCCH) of the serving cell of the first UE, or may be carried by a Radio Resource Control (RRC) message.
  • PDCCH Physical Downlink Control Channel
  • RRC Radio Resource Control
  • the serving cell identifier in which the scheduled D2D resource is located is indicated in the RRC message.
  • the eNB may use the RRC message to schedule the D2D resource to the first UE for transmitting the D2D discovery information, and the RRC message carries the identifier of the serving cell where the D2D resource is located.
  • the first UE uses the base station to allocate the resource allocation mode to allocate resources, the first UE needs to request the D2D resource from the base station before the D2D data is sent, and the base station receives the After the D2D resource request, the D2D resource is scheduled to be sent to the first UE by the dedicated signaling.
  • the first UE maintains a time synchronization timer (Time Alignment Timer; TAT), when the TAT corresponding to the serving cell is in the running state, the D2D data is sent on the scheduled D2D resource.
  • TAT Time Alignment Timer
  • the D2D resource that has been acquired by the first UE and allocated by the base station corresponding to the serving cell is cleared. If the first UE determines that the resource used in the D2D Hybrid Automatic Repeat Request (HARQ) process is allocated by the base station, the data of the D2D sending HARQ process is cleared and remains. The D2D receives the data of the HARQ process, thereby achieving the purpose of receiving data in the serving cell by the first UE after the TAT timeout.
  • HARQ Hybrid Automatic Repeat Request
  • FIG. 5 is a schematic structural diagram of Embodiment 1 of a UE according to the present invention.
  • the UE provided by the embodiment of the present invention includes a receiving module 501, a processing module 502, and a sending module 503.
  • the receiving module 501 is configured to: when the first user equipment UE has the device to send the data to the device D2D, the D2D buffer status report BSR is triggered, and the uplink cellular resource sent by the base station is received; the processing module 502 is configured to determine whether the cell has been triggered.
  • the message module 3 carries the D2D BSR, and the sending module 503 is configured to report the message 3 of the determined random access procedure to the base station by using the uplink cell resource, where the receiving module 501 is configured to receive the signaling sent by the base station, where The processing module 502 is configured to determine, according to the signaling, whether the random access procedure is successful, after the receiving module 501 receives the signaling sent by the base station.
  • the sending module may be a transmitter
  • the receiving module may be a receiver
  • the processing module may be a processor
  • the UE provided by the embodiment of the present invention triggers the D2D BSR when the first UE has D2D data waiting to be sent, and receives the uplink cellular resource sent by the base station, and the first UE determines whether the cellular BSR has been triggered, and determines that the cellular is triggered.
  • the BSR according to the type of the triggered cellular BSR, it is determined whether the D2D BSR is carried in the message 3 of the random access procedure, and the first UE reports the message 3 of the determined random access procedure to the base station through the uplink cellular resource, and receives the base station.
  • the returned signaling determines whether the random access procedure is successful according to the signaling.
  • the first UE determines whether the cellular BSR has been triggered, and determines whether to carry the D2D BSR in the third message of the random access procedure according to the type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the third message, thereby reducing The complexity of the random access process competition resolution.
  • the types of the cellular BSRs include: a regular cellular BSR, a periodic cellular BSR, and a padded cellular BSR.
  • the types of the D2D BSR include: a regular D2D BSR and a periodic D2D BSR.
  • processing module 502 is further configured to:
  • the conventional cellular BSR is carried in message 3 of the random access procedure, and the D2D BSR is not carried in message 3 of the random access procedure; If the type of the cellular BSR that has been triggered is not a regular cellular BSR, the D2D BSR is carried in message 3 of the random procedure, and the conventional cellular BSR is not carried in message 3 of the random access procedure.
  • processing module 502 is further configured to:
  • the periodic cellular BSR is carried in message 3 of the random access procedure, and the D2D BSR is not carried in message 3 of the random access procedure; If the type of the cellular BSR that has been triggered is not a periodic cellular BSR, the D2D BSR is carried in message 3 of the random procedure, and the periodic cellular BSR is not carried in message 3 of the random access procedure.
  • processing module 502 is further configured to:
  • the D2D BSR is carried in message 3 of the random access procedure.
  • the padded cellular BSR is no longer carried in message 3 of the random access procedure.
  • processing module 502 is further configured to:
  • the first UE determines that the random access is successful.
  • processing module 502 is further configured to:
  • the first UE determines to be randomly connected. The success is successful; wherein the truncated D2D BSR is part of the content of the D2D BSR that is sent by using the uplink cellular resource.
  • processing module 502 is further configured to:
  • the signaling is random access conflict resolution signaling
  • the random access conflict resolution signaling carries a random access conflict resolution identifier
  • the message 3 of the random access procedure carries a D2D BSR or a cellular BSR
  • the random access conflict resolution signaling includes a random access conflict resolution dedicated media access control MAC layer sub-packet header.
  • the receiving module 501 is further configured to:
  • the D2D resource scheduling message is a signaling that is allocated by the base station to the first UE according to a D2D BSR carried in message 3 of the random access procedure;
  • the sending module 503 is configured to send data to the second UE according to the D2D resource scheduling message.
  • the D2D resource scheduling message is carried by the RRC message, and the serving cell identifier corresponding to the D2D resource in the D2D resource scheduling message is indicated in the RRC message.
  • processing module 502 is further configured to:
  • the D2D resource allocated by the base station corresponding to the serving cell is cleared; the serving cell is the cell where the first UE is located.
  • processing module 502 is further configured to:
  • the UE provided in this embodiment may be used to perform the technical solution of the BSR reporting method in the random access process provided by any embodiment of the present invention.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 6 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • the base station provided by the embodiment of the present invention includes a sending module 601 and a receiving module 602.
  • the sending module 601 is configured to send an uplink cell resource to the first UE when the first user equipment UE has a device to send data to the device D2D, and the receiving module 602 is configured to receive, by the first UE, the uplink cell.
  • the sending module may specifically be a transmitter, and the receiving module may specifically be a receiver.
  • the base station provided by the embodiment of the present invention sends the uplink cellular resource to the first UE when the first UE has the D2D data waiting to be sent, and receives the message 3 of the random access procedure that is sent by the first UE by using the uplink cellular resource; Whether the D2D BSR is carried in the message 3 of the access procedure is determined by the first UE according to the determined type of the triggered cellular BSR; and according to the message 3 of the random access procedure, the signaling is fed back to the first UE for the first A UE determines whether the random access procedure is successful according to signaling.
  • Whether the D2D BSR is carried in the message 3 of the random access procedure received by the base station is determined by the first UE according to the determined type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the message III, thereby reducing the type of the BSR.
  • the complexity of the random access process competition resolution is determined by the first UE according to the determined type of the triggered cellular BSR, thereby reducing the type of the BSR carried in the message III, thereby reducing the type of the BSR.
  • the types of the cellular BSRs include: a regular cellular BSR, a periodic cellular BSR, and a padded cellular BSR.
  • the types of the D2D BSR include: a regular D2D BSR and a periodic D2D BSR.
  • the first UE received by the base station is randomly sent by using the uplink cellular resource.
  • the conventional cellular BSR is carried in the message 3 of the access procedure, and the D2D BSR is not carried in the message 3 of the random access procedure; if the first UE has triggered the cellular BSR, and the triggered
  • the type of the cellular BSR is not a conventional cellular BSR, and the D2D BSR is carried in the message 3 of the random access procedure sent by the first UE by using the uplink cellular resource, and the random access procedure is performed.
  • the conventional cellular BSR is not carried in message three.
  • the first UE received by the base station is randomly sent by using the uplink cellular resource.
  • the message C3 of the access procedure carries the periodic cellular BSR, and the D2D BSR is not carried in the message 3 of the random access procedure; if the first UE has triggered the cellular BSR, and the triggered
  • the type of the cellular BSR is not a periodic cellular BSR, and the D2D BSR is carried in the message 3 of the random access procedure sent by the first UE by using the uplink cellular resource, and the random access procedure is performed.
  • the periodic cellular BSR is not carried in the message three.
  • the D2D BSR is carried in the message 3 of the random access procedure sent by the first UE by using the uplink cellular resource.
  • the padding cell BSR is no longer carried in the message 3 of the random access procedure.
  • the sending module 601 is further configured to:
  • the signaling of the D2D resource is sent to the first UE, so that the first UE determines that the random access is successful.
  • the sending module 601 is further configured to:
  • the message 3 of the random access procedure carries the truncated D2D BSR, sending, to the first UE, signaling that carries the uplink cell resource, where the first UE determines that the random access is successful; wherein the truncation is successful.
  • the D2D BSR is part of the D2D BSR that is transmitted using the uplink cellular resource.
  • the sending module 601 is further configured to:
  • the random access conflict resolution signaling is sent to the first UE, and the random access conflict resolution signaling carries the random access
  • the conflict resolution identifier is used by the first UE to determine that the random access is successful.
  • the random access conflict resolution signaling includes a random access conflict resolution dedicated media access control MAC layer sub-packet header.
  • the sending module 601 is further configured to:
  • the D2D BSR carried in message 3 of the process is allocated to the signaling of the first UE.
  • the D2D resource scheduling message is carried by the RRC message, and the serving cell identifier corresponding to the D2D resource in the D2D resource scheduling message is indicated in the RRC message.
  • the base station provided in this embodiment may be used to perform the technical solution of the BSR reporting method in the random access process provided by any embodiment of the present invention.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. You can choose some of them according to actual needs or All units are used to achieve the objectives of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本发明实施例涉及一种随机接入过程中BSR的上报方法和装置，该方法包括：当第一用户设备UE有设备对设备D2D数据等待发送时，第一UE触发D2D缓冲区状态报告BSR，并接收基站发送的上行蜂窝资源；第一UE判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR；第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站；第一UE接收基站发送的调度信令，并根据信令判断随机接入过程是否成功。本发明实施例提供的随机接入过程中BSR的上报方法和装置降低了随机接入过程竞争解决的复杂度。

Description

随机接入过程中BSR的上报方法和装置 技术领域
本发明实施例涉及无线通信技术，特别涉及一种随机接入过程中BSR的上报方法和装置。
背景技术
设备到设备(Device-to-Device；简称：D2D)通信技术是指在无线通信中，在数据面不经过中转设备(如基站或接入点等)，而是在用户设备(User Equipment；简称：UE)之间直接进行通信的技术。目前，D2D通信技术可以应用于无线网络，以减小网络转发的延时，同时提高资源的利用率和网络容量。UE可以属于多个D2D通信组，并同时和多个D2D通信组进行通信。
现有技术中，若UE有待发送的D2D数据时，UE会触发D2D缓冲区状态报告(buffer status Report，简称：BSR)，其中，D2D BSR包含一个或多个D2D通信组对应的缓冲区状态。UE可以通过随机接入过程请求上行资源，在随机接入过程中的消息三中向基站上报D2D BSR。另外，若UE发送上行蜂窝数据时，则需要向基站上报蜂窝BSR。
然而，在现有技术中，由于常规蜂窝BSR和周期蜂窝BSR的优先级均比D2D BSR的优先级高，因此，若UE在触发了D2D BSR的同时还触发了常规蜂窝BSR或周期蜂窝BSR，则UE在消息三中上报D2D BSR的同时，还要向基站上报常规蜂窝BSR或周期蜂窝BSR，导致随机接入过程竞争解决的复杂度较高。
发明内容
本发明实施例提供一种随机接入过程中BSR的上报方法和装置，用于解决UE在随机过程的消息三中由于同时发送蜂窝BSR和D2D BSR导致随机接入过程竞争解决的复杂度高的问题。
第一方面，本发明实施例提供一种随机接入过程中BSR的上报方法，包括：
当第一用户设备UE有设备对设备D2D数据等待发送时，第一UE触发D2D缓冲区状态报告BSR，并接收基站发送的上行蜂窝资源；
所述第一UE判断是否已经触发蜂窝BSR，并在确定触发了所述蜂窝BSR时，根据触发的所述蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR；
所述第一UE将确定的随机接入过程的消息三通过所述上行蜂窝资源上报给基站；
所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功。
结合第一方面，在第一方面的第一种可能的实现方式中，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
结合第一方面，在第一方面的第二种可能的实现方式中，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
结合第一方面、第一方面的第一种至第一方面的第二种任一种可能的实现方式，在第一方面的第三种可能的实现方式中，所述第一UE判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR，具体包括：
若所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则所述第一UE在随机接入过程的消息三中携带所述常规蜂窝BSR，且不在所述随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则所述第一UE在所述随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述常规蜂窝BSR。
结合第一方面、第一方面的第一种至第一方面的第二种任一种可能的实现方式，在第一方面的第四种可能的实现方式中，所述第一UE判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR，具体包括：
若所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则所述第一UE在随机接入过程的消息三中携带所述周期蜂窝BSR，且不在所述随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则所述第一UE在所述随机过程的消息三中携带所述D2D BSR， 且不在所述随机接入过程的消息三中携带所述周期蜂窝BSR。
结合第一方面、第一方面的第一种至第一方面的第二种任一种可能的实现方式，在第一方面的第五种可能的实现方式中，所述方法还包括：
若所述第一UE没有触发蜂窝BSR，则所述第一UE在随机接入过程的消息三中携带所述D2D BSR。
结合第一方面的第三种或第一方面的第四种任一种可能的实现方式，在第一方面的第六种可能的实现方式中，若所述第一UE在所述随机接入过程的消息三中携带所述D2D BSR，则不再将填充蜂窝BSR携带在所述随机接入过程的消息三中。
结合第一方面，在第一方面的第七种可能的实现方式中，所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功，具体包括：
若所述信令中携带D2D资源，且所述随机接入过程的消息三中携带D2D BSR，则所述第一UE确定随机接入成功。
结合第一方面，在第一方面的第八种可能的实现方式中，所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功，包括：
若所述信令中携带上行蜂窝资源，且所述随机接入过程的消息三中携带截断D2D BSR，且所述第一UE当前没有上行蜂窝数据等待发送，则所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
结合第一方面，在第一方面的第九种可能的实现方式中，所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功，包括：
若所述信令为随机接入冲突解决信令，且所述随机接入冲突解决信令携带随机接入冲突解决标识，且所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则所述第一UE确定随机接入成功。
结合第一方面的第九种可能的实现方式，在第一方面的第十种可能的实现方式中，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
结合第一方面的第七种至第一方面的第十种任一种可能的实现方式，在第一方面的第十一种可能的实现方式中，所述第一UE确定随机接入成功之 后，所述方法还包括：
所述第一UE接收所述基站发送的D2D资源调度消息；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令；
所述第一UE根据所述D2D资源调度消息，向第二UE发送数据。
结合第一方面的第十一种可能的实现方式，在第一方面的第十二种可能的实现方式中，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
结合第一方面的第十一种可能的实现方式，在第一方面的第十三种可能的实现方式中，所述方法还包括：
所述第一UE若确定服务小区对应的时间同步定时器TAT超时，则所述第一UE清空所述服务小区对应的基站分配的D2D资源；所述服务小区为所述第一UE所在的小区。
结合第一方面的第十三种可能的实现方式，在第一方面的第十四种可能的实现方式中，所述方法还包括：
所述第一UE若确定服务小区对应的时间同步定时器TAT超时，则判断所述服务小区对应的D2D发送混合自动重传请求HARQ进程上使用的资源是否由基站分配；
若是，则清除所述D2D发送HARQ进程的数据。
第二方面，本发明实施例提供一种随机接入过程中BSR的上报方法，包括：
基站在第一用户设备UE有设备对设备D2D数据等待发送时，向所述第一UE发送上行蜂窝资源；
所述基站接收所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三；所述随机接入过程的消息三中是否携带D2D BSR是通过所述第一UE根据确定了的触发蜂窝BSR的类型来确定的；
所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功。
结合第二方面，在第二方面的第一种可能的实现方式中，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
结合第二方面，在第二方面的第二种可能的实现方式中，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
结合第二方面、第二方面的第一种至第二方面的第二种任一种可能的实现方式，在第二方面的第三种可能的实现方式中，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述常规蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述常规蜂窝BSR。
结合第二方面、第二方面的第一种至第二方面的第二种任一种可能的实现方式，在第二方面的第四种可能的实现方式中，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述周期蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述周期蜂窝BSR。
结合第二方面、第二方面的第一种至第二方面的第二种任一种可能的实现方式，在第二方面的第五种可能的实现方式中，若所述第一UE没有触发蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR。
结合第二方面的第三种或第二方面的第四种任一种可能的实现方式，在第二方面的第六种可能的实现方式中，若所述随机接入过程的消息三中携带有所述D2D BSR，则所述随机接入过程的消息三中不再携带填充蜂窝BSR。
结合第二方面，在第二方面的第七种可能的实现方式中，所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功，具体包括：
若所述随机接入过程的消息三中携带D2D BSR，则所述基站向所述第一UE发送携带D2D资源的信令，以供所述第一UE确定随机接入成功。
结合第二方面，在第二方面的第八种可能的实现方式中，所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功，具体包括：
若所述随机接入过程的消息三中携带截断D2D BSR，则所述基站向所述第一UE发送携带上行蜂窝资源的信令，以供所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
结合第二方面，在第二方面的第九种可能的实现方式中，所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功，具体包括：
若所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则所述基站向所述第一UE发送随机接入冲突解决信令，且所述随机接入冲突解决信令中携带有随机接入冲突解决标识，以供所述第一UE确定随机接入成功。
结合第二方面的第九种可能的实现方式，在第二方面的第十种可能的实现方式中，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
结合第二方面的第七种至第二方面的第十种任一种可能的实现方式，在第二方面的第十一种可能的实现方式中，所述向所述第一UE反馈信令之后，所述方法还包括：
所述基站向所述第一UE发送D2D资源调度消息，以供所述第一UE根据所述D2D资源调度消息，向第二UE发送数据；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令。
结合第二方面的第十一种可能的实现方式，在第二方面的第十二种可能的实现方式中，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
第三方面，本发明实施例提供一种UE，包括：
接收模块，用于当第一用户设备UE有设备对设备D2D数据等待发送时， 触发D2D缓冲区状态报告BSR，并接收基站发送的上行蜂窝资源；
处理模块，用于判断是否已经触发蜂窝BSR，并在确定触发了所述蜂窝BSR时，根据触发的所述蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR；
发送模块，用于将确定的随机接入过程的消息三通过所述上行蜂窝资源上报给基站；
所述接收模块，用于接收基站发送的信令；
所述处理模块，用于在所述接收模块接收基站发送的信令后，根据所述信令判断随机接入过程是否成功。
结合第三方面，在第三方面的第一种可能的实现方式中，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
结合第三方面，在第三方面的第二种可能的实现方式中，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
结合第三方面、第三方面的第一种至第三方面的第二种任一种可能的实现方式，在第三方面的第三种可能的实现方式中，所述处理模块还用于：
若所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则在随机接入过程的消息三中携带所述常规蜂窝BSR，且不在所述随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则在所述随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述常规蜂窝BSR。
结合第三方面、第三方面的第一种至第三方面的第二种任一种可能的实现方式，在第三方面的第四种可能的实现方式中，所述处理模块还用于：
若所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则在随机接入过程的消息三中携带所述周期蜂窝BSR，且不在所述随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则在所述随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述周期蜂窝BSR。
结合第三方面、第三方面的第一种至第三方面的第二种任一种可能的实现方式，在第三方面的第五种可能的实现方式中，所述处理模块还用于：
若所述第一UE没有触发蜂窝BSR，则在随机接入过程的消息三中携带 所述D2D BSR。
结合第三方面的第三种或第三方面的第四种任一种可能的实现方式，在第三方面的第六种可能的实现方式中，若所述第一UE在随机接入过程的消息三中携带所述D2D BSR，则不再将填充蜂窝BSR携带在随机接入过程的消息三中。
结合第三方面，在第三方面的第七种可能的实现方式中，所述处理模块还用于：
若所述信令中携带D2D资源，且所述随机接入过程的消息三中携带D2D BSR，则所述第一UE确定随机接入成功。
结合第三方面，在第三方面的第八种可能的实现方式中，所述处理模块还用于：
若所述信令中携带上行蜂窝资源，且所述随机接入过程的消息三中携带截断D2D BSR，且所述第一UE当前没有上行蜂窝数据等待发送，则所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
结合第三方面，在第三方面的第九种可能的实现方式中，所述处理模块还用于：
若所述信令为随机接入冲突解决信令，且所述随机接入冲突解决信令携带随机接入冲突解决标识，且所述消息三中携带D2D BSR或者蜂窝BSR，则所述第一UE确定随机接入成功。
结合第三方面的第九种可能的实现方式，在第三方面的第十种可能的实现方式中，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
结合第三方面的第八种至第三方面的第十种任一种可能的实现方式，在第三方面的第十一种可能的实现方式中，所述接收模块还用于：
接收所述基站发送的D2D资源调度消息；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令；
所述发送模块，用于根据所述D2D资源调度消息，向第二UE发送数据。
结合第三方面的第十一种可能的实现方式，在第三方面的第十二种可能 的实现方式中，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
结合第三方面的第十一种可能的实现方式，在第三方面的第十三种可能的实现方式中，所述处理模块还用于：
若确定服务小区对应的时间同步定时器TAT超时，则清空所述服务小区对应的基站分配的D2D资源；所述服务小区为所述第一UE所在的小区。
结合第三方面的第十三种可能的实现方式，在第三方面的第十四种可能的实现方式中，所述处理模块还用于：
若确定服务小区对应的时间同步定时器TAT超时，则判断所述服务小区对应的D2D发送混合自动重传请求HARQ进程上使用的资源是否由基站分配；
若是，则清除所述D2D发送HARQ进程的数据。
第四方面，本发明实施例提供一种基站，包括：
发送模块，用于在第一用户设备UE有设备对设备D2D数据等待发送时，向所述第一UE发送上行蜂窝资源；
接收模块，用于接收所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三；所述随机接入过程的消息三中是否携带D2D BSR是通过所述第一UE根据确定了的触发蜂窝BSR的类型来确定的；
所述发送模块，还用于根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功。
结合第四方面，在第四方面的第一种可能的实现方式中，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
结合第四方面，在第四方面的第二种可能的实现方式中，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
结合第四方面、第四方面的第一种至第四方面的第二种任一种可能的实现方式，在第四方面的第三种可能的实现方式中，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述常规蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR 的类型不为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述常规蜂窝BSR。
结合第四方面、第四方面的第一种至第四方面的第二种任一种可能的实现方式，在第四方面的第四种可能的实现方式中，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述周期蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述周期蜂窝BSR。
结合第四方面、第四方面的第一种至第四方面的第二种任一种可能的实现方式，在第四方面的第五种可能的实现方式中，若所述第一UE没有触发蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR。
结合第四方面的第三种或第四方面的第四种任一种可能的实现方式，在第四方面的第六种可能的实现方式中，若所述随机接入过程的消息三中携带有所述D2D BSR，则所述随机接入过程的消息三中不再携带填充蜂窝BSR。
结合第四方面，在第四方面的第七种可能的实现方式中，所述发送模块还用于：
若所述随机接入过程的消息三中携带D2D BSR，则向所述第一UE发送携带D2D资源的信令，以供所述第一UE确定随机接入成功。
结合第四方面，在第四方面的第八种可能的实现方式中，所述发送模块还用于：
若所述随机接入过程的消息三中携带截断D2D BSR，则向所述第一UE发送携带上行蜂窝资源的信令，以供所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
结合第四方面，在第四方面的第九种可能的实现方式中，所述发送模块 还用于：
若所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则向所述第一UE发送随机接入冲突解决信令，且所述随机接入冲突解决信令中携带有随机接入冲突解决标识，以供所述第一UE确定随机接入成功。
结合第四方面的第九种可能的实现方式，在第四方面的第十种可能的实现方式中，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
结合第四方面的第七种至第四方面的第十种任一种可能的实现方式，在第四方面的第十一种可能的实现方式中，所述发送模块还用于：
向所述第一UE发送D2D资源调度消息，以供所述第一UE根据所述D2D资源调度消息，向第二UE发送数据；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令。
结合第四方面的第十一种可能的实现方式，在第四方面的第十二种可能的实现方式中，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
本发明提供的随机接入过程中BSR的上报方法和装置，当第一UE有D2D数据等待发送时，会触发D2D BSR，并接收基站发送的上行蜂窝资源，第一UE通过判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站，并接收基站返回的信令，根据该信令判断随机接入过程是否成功。由于第一UE通过判断是否已经触发蜂窝BSR，并根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，减少了消息三中所携带的BSR的类型，从而降低了随机接入过程竞争解决的复杂度。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明随机接入过程中BSR的上报方法实施例一的流程示意图；
图2为本发明随机接入过程中BSR的上报方法实施例二的流程示意图
图3为本发明随机接入过程中BSR的上报方法实施例三的流程示意图；
图4为本发明随机接入过程中BSR的上报方法实施例四的流程示意图；
图5为本发明提供的UE实施例一的结构示意图；
图6为本发明提供的基站实施例一的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明随机接入过程中BSR的上报方法实施例一的流程示意图。本发明实施例提供了一种随机接入过程中BSR的上报方法。如图1所示，本实施例的方法可以包括：
步骤101、当第一UE有D2D数据等待发送时，第一UE触发D2D BSR，并接收基站发送的上行蜂窝资源。
具体地，在D2D通信中，若第一UE有待发送的D2D数据时，第一UE会触发D2D BSR。此时，若没有上行蜂窝资源上报该D2D BSR时，第一UE会通过随机接入过程向基站发送调度请求，请求基站分配一定的上行蜂窝资源。在具体的实现过程中，UE首先向基站发送消息一(MSG1)，即前导序列码，基站接收到消息一(MSG1)后，向第一UE返回消息二(MSG2)，该消息二(MSG2)中携带有上行蜂窝资源，以供第一UE采用基站分配的上行蜂窝资源上报D2D BSR。
步骤102、第一UE判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR。
在本实施例中，第一UE接收到基站发送的上行蜂窝资源之后，首先判断是否触发了蜂窝BSR，当确定触发了蜂窝BSR时，根据触发的蜂窝BSR 的类型确定是否在随机接入过程的消息三(MSG3)中携带触发的D2D BSR。
步骤103、第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站。
在本实施例中，第一UE根据被触发的蜂窝BSR的类型，确定在随机接入过程的消息三(MSG3)中所携带的BSR的类型，也就是说，确定在消息三(MSG3)中携带哪一类BSR，并将确定的携带有BSR的消息三(MSG3)通过上行蜂窝资源上报给基站。
步骤104、第一UE接收基站发送的信令，并根据信令判断随机接入过程是否成功。
在本实施例中，第一UE将携带有BSR的消息三(MSG3)上报给基站之后，基站会根据BSR，生成与之对应的信令，并将该信令返回给第一UE，第一UE根据接收到的信令判断随机接入过程是否成功完成。
本发明实施例提供的随机接入过程中BSR的上报方法，当第一UE有D2D数据等待发送时，会触发D2D BSR，并接收基站发送的上行蜂窝资源，第一UE通过判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2DBSR，第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站，并接收基站返回的信令，根据该信令判断随机接入过程是否成功。由于第一UE通过判断是否已经触发蜂窝BSR，并根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，减少了消息三中所携带的BSR的类型，从而降低了随机接入过程竞争解决的复杂度。
图2为本发明随机接入过程中BSR的上报方法实施例二的流程示意图。本发明实施例提供了一种随机接入过程中BSR的上报方法。如图2所示，本实施例的方法可以包括：
步骤201、基站在第一UE有D2D数据等待发送时，向第一UE发送上行蜂窝资源。
在本实施例中，在D2D通信中，若第一UE有待发送的D2D数据时，第一UE会触发D2D BSR。此时，若没有上行蜂窝资源向基站上报该D2D BSR时，第一UE会通过随机接入过程向基站发送调度请求，基站接收到第一UE发送的调度请求之后，向第一UE分配一定的上行蜂窝资源，以供第一UE 采用该上行蜂窝资源上报D2D BSR。
步骤202、基站接收第一UE通过上行蜂窝资源发送的随机接入过程的消息三；随机接入过程的消息三中是否携带D2D BSR是通过第一UE根据确定了的触发蜂窝BSR的类型来确定的。
在本实施例中，基站向第一UE分配上行蜂窝资源之后，第一UE首先判断是否触发了蜂窝BSR，当确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型确定是否在随机接入过程的消息三(MSG3)中携带触发的D2D BSR，并将确定的携带有BSR的消息三(MSG3)通过上行蜂窝资源上报给基站。
步骤203、基站根据随机接入过程的消息三，向第一UE反馈信令，以供第一UE根据信令判断随机接入过程是否成功。
在本实施例中，基站接收到第一UE发送的携带有BSR的随机接入过程的消息三之后，会根据携带的BSR的类型，生成与之对应的信令，并将该信令返回给第一UE，以使第一UE根据接收到的信令判断随机接入过程是否成功完成。
本发明实施例提供的随机接入过程中BSR的上报方法，基站在第一UE有D2D数据等待发送时，向第一UE发送上行蜂窝资源；基站接收第一UE通过上行蜂窝资源发送的随机接入过程的消息三；其中，随机接入过程的消息三中是否携带D2D BSR是通过第一UE根据确定了的触发蜂窝BSR的类型来确定的；基站根据随机接入过程的消息三，向第一UE反馈信令，以供第一UE根据信令判断随机接入过程是否成功。由于基站接收的随机接入过程的消息三中是否携带D2D BSR是通过第一UE根据确定了的触发蜂窝BSR的类型来确定，由此减少了消息三中所携带的BSR的类型，从而降低了随机接入过程竞争解决的复杂度。
如上所述的方法实施例，可选地，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
如上所述的方法实施例，可选地，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
图3为本发明随机接入过程中BSR的上报方法实施例三的流程示意图。本发明实施例提供了一种随机接入过程中BSR的上报方法，本实施例在随机接入过程中BSR的上报方法实施例一和随机接入过程中BSR的上报方法实 施例二的基础上，对第一UE判断是否已经触发蜂窝BSR，并根据判断结果确定是否在随机接入过程的消息三中携带D2D BSR的实施例，进行详细说明。
步骤301、当第一UE有D2D数据等待发送时，第一UE触发D2D BSR，并接收基站发送的上行蜂窝资源。
步骤302、第一UE判断是否已经触发蜂窝BSR。若是，则执行步骤203，否则，执行步骤205。
步骤303、第一UE判断已经触发的蜂窝BSR的类型是否为常规蜂窝BSR。
若是，则执行步骤304，否则，执行步骤305。
步骤304、第一UE在随机接入过程的消息三中携带常规蜂窝BSR，且不在随机接入过程的消息三中携带D2D BSR。
在本实施例中，若第一UE触发了常规蜂窝BSR，则仅将常规蜂窝BSR携带在随机接入过程的消息三(MSG3)中上报给基站，而不需要上报D2D BSR。
步骤305、第一UE在随机过程的消息三中携带所述D2D BSR，且不在随机接入过程的消息三中携带常规蜂窝BSR。
在本实施例中，若第一UE没有触发常规蜂窝BSR，或者触发了除常规蜂窝BSR之外的其它蜂窝BSR，如周期蜂窝BSR，此时，第一UE在随机接入过程的消息三(MSG3)中携带D2D BSR，而不携带常规蜂窝BSR，并将随机接入过程的消息三上报给基站。
步骤306、第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站。
步骤307、第一UE接收基站发送的调度信令，并根据调度信令判断随机接入过程是否成功。
在本实施例中，第一UE将携带有BSR的随机接入过程的消息三上报给基站之后，基站根据该随机接入过程的消息三中携带的BSR的类型，生成与之对应的信令，并将该信令返回给第一UE，第一UE根据接收到的信令判断随机接入过程是否成功完成。
本发明实施例提供的随机接入过程中BSR的上报方法，当第一UE有 D2D数据等待发送时，会触发D2D BSR，并接收基站发送的上行蜂窝资源，第一UE通过判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站，并接收基站返回的信令，根据该信令判断随机接入过程是否成功。由于第一UE通过判断是否已经触发蜂窝BSR，并根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，减少了消息三中所携带的BSR的类型，从而降低了随机接入过程竞争解决的复杂度。
图4为本发明随机接入过程中BSR的上报方法实施例四的流程示意图。本发明实施例提供了一种随机接入过程中BSR的上报方法，本实施例在随机接入过程中BSR的上报方法实施例一和随机接入过程中BSR的上报方法实施例二的基础上，对第一UE判断是否已经触发蜂窝BSR，并根据判断结果确定是否在随机接入过程的消息三中携带D2D BSR的实施例，进行详细说明。
步骤401、当第一UE有D2D数据等待发送时，第一UE触发D2D BSR，并接收基站发送的上行蜂窝资源。
步骤402、第一UE判断是否已经触发蜂窝BSR。若是，则执行步骤403，否则，执行步骤405。
步骤403、第一UE判断已经触发的蜂窝BSR的类型是否为周期蜂窝BSR。
若是，则执行步骤404，否则，执行步骤405。
步骤404、第一UE在随机接入过程的消息三中携带周期蜂窝BSR，且不在随机接入过程的消息三中携带D2D BSR。
在本实施例中，若第一UE触发了周期蜂窝BSR，则仅将周期蜂窝BSR携带在随机接入过程的消息三(MSG3)中上报给基站，而不需要上报D2D BSR。
步骤405、第一UE在随机过程的消息三中携带所述D2D BSR，且不在随机接入过程的消息三中携带周期蜂窝BSR。
在本实施例中，若第一UE没有触发周期蜂窝BSR，或者触发了除周期蜂窝BSR之外的其它蜂窝BSR，此时，第一UE仅在随机接入过程的消息三 (MSG3)中携带D2D BSR，而不携带周期蜂窝BSR，并将随机接入过程的消息三上报给基站。
步骤406、第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站。
步骤407、第一UE接收基站发送的调度信令，并根据调度信令判断随机接入过程是否成功。
步骤406-步骤407与步骤306-步骤307类似，此处不再赘述。
本发明实施例提供的随机接入过程中BSR的上报方法，当第一UE有D2D数据等待发送时，会触发D2D BSR，并接收基站发送的上行蜂窝资源，第一UE通过判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站，并接收基站返回的信令，根据该信令判断随机接入过程是否成功。由于第一UE通过判断是否已经触发蜂窝BSR，并根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，减少了消息三中所携带的BSR的类型，从而降低了随机接入过程竞争解决的复杂度。
如上所述的方法实施例，可选地，若第一UE在随机接入过程的消息三中携带所述D2D BSR，则不再将填充蜂窝BSR携带在随机接入过程的消息三中。具体地，蜂窝BSR与D2D BSR的优先级从高到低为：常规蜂窝BSR、周期蜂窝BSR、D2D BSR和填充蜂窝BSR，在现有技术中，当随机接入过程的消息三中携带了D2D BSR之后，若还有空闲的位置，则将填充蜂窝BSR也携带在消息三中上报给基站，由此，增加了随机接入过程竞争解决的复杂度。在本实施例中，若第一UE在随机接入过程的消息三中携带了D2D BSR，即使此时还有空闲位置，也将不再携带填充蜂窝BSR，由此，可以降低随机接入过程竞争解决的复杂度。
在上述随机接入过程中BSR的上报方法实施例的基础上，当第一UE接收到基站发送的信令时，根据该信令判断随机接入过程是否成功的情况有以下几种。在实际的应用过程中，可以根据具体的应用采用以下任意一种或几种方法进行判断。
第一种：若信令中携带D2D资源，且随机接入过程的消息三中携带D2D  BSR，则第一UE确定随机接入成功。
具体地，当第一UE将D2D BSR携带在随机接入过程的消息三中上报给基站时，基站会向第一UE返回D2D资源调度信令，此时，第一UE根据接收到的D2D资源调度信令，判断该D2D资源调度信令中是否包含有D2D资源，若判断得知有D2D资源，则第一UE确定随机接入成功，若没有，则认为随机接入失败。
第二种：若信令中携带上行蜂窝资源，且随机接入过程的消息三中携带截断D2D BSR，且第一UE当前没有上行蜂窝数据等待发送，则第一UE确定随机接入成功。
具体地，本领域技术人员可以理解，当没有足够的上行蜂窝资源发送D2D BSR时，会出现一部分D2D BSR被发送，一部分D2D BSR被剩余的情况，采用上行蜂窝资源进行发送的D2D BSR的部分内容即为截断D2D BSR(truncated D2D BSR)。例如，D2D BSR中包含个3个D2D通信组的BSR信息，由于上行蜂窝资源不能完全承载这3个D2D通信组的BSR内容，第一UE仅上报其中2个D2D通信组的BSR内容，这2个D2D通信组的BSR内容就是截断D2D BSR。当基站返回的信令中包含有上行蜂窝资源，且消息三中携带截断D2D BSR，而且第一UE当前没有等待发送的上行蜂窝数据，则第一UE确定随机接入成功。其中，上行蜂窝数据是除D2D BSR之外的其它上行数据。
第三种：若信令为随机接入冲突解决信令，且随机接入冲突解决信令携带随机接入冲突解决标识，且随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则第一UE确定随机接入成功。
具体地，随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制(Medium Access Control，MAC)层子包头，对应的，随机接入冲突解决标识可以是MAC层子包头中包含的专用于随机接入冲突解决的逻辑信道标识，随机接入冲突解决信令还可以是MAC层控制元素，对应的随机接入冲突解决标识可以是MAC层控制元素中的随机接入冲突解决标识。若第一UE将携带有D2D BSR或者蜂窝BSR的消息三发送给基站，基站返回给第一UE的信令为随机接入冲突解决信令，且该随机接入冲突解决信令中携带有随机接入冲突解决标识时，第一UE确定随机接入成功。
如上所述的方法实施例，可选地，当第一UE确定随机接入成功之后，第一UE接收基站发送的D2D资源调度消息；第一UE根据D2D资源调度消息，向第二UE发送数据。其中，D2D资源调度消息为基站根据随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令。
如上所述的方法实施例，可选地，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。具体地，D2D资源调度消息可以通过第一UE的服务小区的物理层下行控制信道(Physical Downlink Control Channel；简称：PDCCH)承载；也可以通过无线资源控制(Radio Resource Control；简称：RRC)消息承载。在RRC消息中指示调度的D2D资源所在的服务小区标识。例如：基站可以通过RRC消息调度D2D资源给第一UE用于传输D2D发现信息，并在该RRC消息中携带D2D资源所在的服务小区的标识。
如上所述的方法实施例，可选地，在D2D通信中，若第一UE使用基站调度资源分配模式分配资源时，第一UE在发送D2D数据前需要先向基站请求D2D资源，基站接收到D2D资源请求后，通过专用信令给第一UE调度D2D资源，第一UE接收到D2D资源调度信息后，在第一UE和基站之间会保持一个时间同步定时器(Time Alignment Timer；简称：TAT)，当服务小区对应的TAT处于运行状态时，在调度的D2D资源上发送D2D数据。若第一UE确定服务小区对应的TAT超时，则将第一UE已经获取的，且由服务小区对应的基站分配的D2D资源清空。若第一UE判断得知服务小区对应的D2D发送混合自动重传请求(Hybrid Automatic Repeat Request；简称：HARQ)进程上使用的资源是由基站分配，则将D2D发送HARQ进程的数据清空，同时保留D2D接收HARQ进程的数据，以此实现了在TAT超时后，第一UE在服务小区内进行数据接收的目的。
图5为本发明提供的UE实施例一的结构示意图。如图5所示，本发明实施例提供的UE包括接收模块501、处理模块502和发送模块503。
其中，接收模块501用于当第一用户设备UE有设备对设备D2D数据等待发送时，触发D2D缓冲区状态报告BSR，并接收基站发送的上行蜂窝资源；处理模块502用于判断是否已经触发蜂窝BSR，并在确定触发了所述蜂窝BSR时，根据触发的所述蜂窝BSR的类型，确定是否在随机接入过程的 消息三中携带所述D2D BSR；发送模块503用于将确定的随机接入过程的消息三通过所述上行蜂窝资源上报给基站；所述接收模块501用于接收基站发送的信令，所述处理模块502用于在所述接收模块501接收基站发送的信令后，根据所述信令判断随机接入过程是否成功。
需要进行说明的是，发送模块具体可以是发射器，接收模块具体可以是接收器，处理模块具体可以是处理器。
本发明实施例提供的UE，当第一UE有D2D数据等待发送时，会触发D2D BSR，并接收基站发送的上行蜂窝资源，第一UE通过判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，第一UE将确定的随机接入过程的消息三通过上行蜂窝资源上报给基站，并接收基站返回的信令，根据该信令判断随机接入过程是否成功。由于第一UE通过判断是否已经触发蜂窝BSR，并根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带D2D BSR，减少了消息三中所携带的BSR的类型，从而降低了随机接入过程竞争解决的复杂度。
可选地，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
可选地，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
可选地，所述处理模块502还用于：
若所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则在随机接入过程的消息三中携带所述常规蜂窝BSR，且不在随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则在随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述常规蜂窝BSR。
可选地，所述处理模块502还用于：
若所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则在随机接入过程的消息三中携带所述周期蜂窝BSR，且不在随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则在随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述周期蜂窝BSR。
可选地，所述处理模块502还用于：
若所述第一UE没有触发蜂窝BSR，则在随机接入过程的消息三中携带所述D2D BSR。
可选地，若所述第一UE在随机接入过程的消息三中携带所述D2D BSR，则不再将填充蜂窝BSR携带在随机接入过程的消息三中。
可选地，所述处理模块502还用于：
若所述信令中携带D2D资源，且所述随机接入过程的消息三中携带D2D BSR，则所述第一UE确定随机接入成功。
可选地，所述处理模块还502还用于：
若所述信令中携带上行蜂窝资源，且所述随机接入过程的消息三中携带截断D2D BSR，且所述第一UE当前没有上行蜂窝数据等待发送，则所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
可选地，所述处理模块还502还用于：
若所述信令为随机接入冲突解决信令，且所述随机接入冲突解决信令携带随机接入冲突解决标识，且所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则所述第一UE确定随机接入成功。
可选地，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
可选地，所述接收模块501还用于：
接收所述基站发送的D2D资源调度消息；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令；
所述发送模块503，用于根据所述D2D资源调度消息，向第二UE发送数据。
可选地，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
可选地，所述处理模块502还用于：
若确定服务小区对应的时间同步定时器TAT超时，则清空所述服务小区对应的基站分配的D2D资源；所述服务小区为所述第一UE所在的小区。
可选地，所述处理模块502还用于：
若确定服务小区对应的时间同步定时器TAT超时，则判断所述服务小区对应的D2D发送混合自动重传请求HARQ进程上使用的资源是否由基站分配；
若是，则清除所述D2D发送HARQ进程的数据。
本实施例提供的UE，可以用于执行本发明任意实施例所提供的随机接入过程中BSR的上报方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
图6为本发明提供的基站实施例一的结构示意图。如图6所示，本发明实施例提供的基站包括发送模块601和接收模块602。
其中，发送模块601用于在第一用户设备UE有设备对设备D2D数据等待发送时，向所述第一UE发送上行蜂窝资源；接收模块602用于接收所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三；所述随机接入过程的消息三中是否携带D2D BSR是通过所述第一UE根据确定了的触发蜂窝BSR的类型来确定的；所述发送模块601还用于根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功。
需要进行说明的是，发送模块具体可以是发射器，接收模块具体可以是接收器。
本发明实施例提供的基站，通过在第一UE有D2D数据等待发送时，向第一UE发送上行蜂窝资源；接收第一UE通过上行蜂窝资源发送的随机接入过程的消息三；其中，随机接入过程的消息三中是否携带D2D BSR是通过第一UE根据确定了的触发蜂窝BSR的类型来确定的；并根据随机接入过程的消息三，向第一UE反馈信令，以供第一UE根据信令判断随机接入过程是否成功。由于基站接收的随机接入过程的消息三中是否携带D2D BSR是通过第一UE根据确定了的触发蜂窝BSR的类型来确定，由此减少了消息三中所携带的BSR的类型，从而降低了随机接入过程竞争解决的复杂度。
可选地，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
可选地，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
可选地，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述常规蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述常规蜂窝BSR。
可选地，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述周期蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述周期蜂窝BSR。
可选地，若所述第一UE没有触发蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR。
可选地，若所述随机接入过程的消息三中携带有所述D2D BSR，则所述随机接入过程的消息三中不再携带填充蜂窝BSR。
可选地，所述发送模块601还用于：
若所述随机接入过程的消息三中携带D2D BSR，则向所述第一UE发送携带D2D资源的信令，以供所述第一UE确定随机接入成功。
可选地，所述发送模块601还用于：
若所述随机接入过程的消息三中携带截断D2D BSR，则向所述第一UE发送携带上行蜂窝资源的信令，以供所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
可选地，所述发送模块601还用于：
若所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则向所述第一UE发送随机接入冲突解决信令，且所述随机接入冲突解决信令中携带有随机接入冲突解决标识，以供所述第一UE确定随机接入成功。
可选地，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
可选地，所述发送模块601还用于：
向所述第一UE发送D2D资源调度消息，以供所述第一UE根据所述D2D资源调度消息，向第二UE发送数据；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令。
可选地，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
本实施例提供的基站，可以用于执行本发明任意实施例所提供的随机接入过程中BSR的上报方法的技术方案，其实现原理和技术效果类似，此处不再赘述。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将装置的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (56)

  1. 一种随机接入过程中BSR的上报方法，其特征在于，包括：
    当第一用户设备UE有设备对设备D2D数据等待发送时，第一UE触发D2D缓冲区状态报告BSR，并接收基站发送的上行蜂窝资源；
    所述第一UE判断是否已经触发蜂窝BSR，并在确定触发了所述蜂窝BSR时，根据触发的所述蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR；
    所述第一UE将确定的随机接入过程的消息三通过所述上行蜂窝资源上报给基站；
    所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功。
  2. 根据权利要求1所述的方法，其特征在于，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
  3. 根据权利要求1所述的方法，其特征在于，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述第一UE判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR，具体包括：
    若所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则所述第一UE在随机接入过程的消息三中携带所述常规蜂窝BSR，且不在所述随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则所述第一UE在所述随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述常规蜂窝BSR。
  5. 根据权利要求1-3任一项所述的方法，其特征在于，所述第一UE判断是否已经触发蜂窝BSR，并在确定触发了蜂窝BSR时，根据触发的蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR，具体包括：
    若所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则所述第一UE在随机接入过程的消息三中携带所述周期蜂窝BSR，且不在所述随机接入过程 的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则所述第一UE在所述随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述周期蜂窝BSR。
  6. 根据权利要求1-3任一项所述的方法，其特征在于，所述方法还包括：
    若所述第一UE没有触发蜂窝BSR，则所述第一UE在随机接入过程的消息三中携带所述D2D BSR。
  7. 根据权利要求4或5所述的方法，其特征在于，若所述第一UE在所述随机接入过程的消息三中携带所述D2D BSR，则不再将填充蜂窝BSR携带在所述随机接入过程的消息三中。
  8. 根据权利要求1所述的方法，其特征在于，所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功，具体包括：
    若所述信令中携带D2D资源，且所述随机接入过程的消息三中携带D2DBSR，则所述第一UE确定随机接入成功。
  9. 根据权利要求1所述的方法，其特征在于，所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功，包括：
    若所述信令中携带上行蜂窝资源，且所述随机接入过程的消息三中携带截断D2D BSR，且所述第一UE当前没有上行蜂窝数据等待发送，则所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
  10. 根据权利要求1所述的方法，其特征在于，所述第一UE接收基站发送的信令，并根据所述信令判断随机接入过程是否成功，包括：
    若所述信令为随机接入冲突解决信令，且所述随机接入冲突解决信令携带随机接入冲突解决标识，且所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则所述第一UE确定随机接入成功。
  11. 根据权利要求10所述的方法，其特征在于，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
  12. 根据权利要求8-11任一项所述的方法，其特征在于，所述第一UE确定随机接入成功之后，所述方法还包括：
    所述第一UE接收所述基站发送的D2D资源调度消息；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分 配给所述第一UE的信令；
    所述第一UE根据所述D2D资源调度消息，向第二UE发送数据。
  13. 根据权利要求12所述的方法，其特征在于，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
  14. 根据权利要求12所述的方法，其特征在于，所述方法还包括：
    所述第一UE若确定服务小区对应的时间同步定时器TAT超时，则所述第一UE清空所述服务小区对应的基站分配的D2D资源；所述服务小区为所述第一UE所在的小区。
  15. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    所述第一UE若确定服务小区对应的时间同步定时器TAT超时，则判断所述服务小区对应的D2D发送混合自动重传请求HARQ进程上使用的资源是否由基站分配；
    若是，则清除所述D2D发送HARQ进程的数据。
  16. 一种随机接入过程中BSR的上报方法，其特征在于，包括：
    基站在第一用户设备UE有设备对设备D2D数据等待发送时，向所述第一UE发送上行蜂窝资源；
    所述基站接收所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三；所述随机接入过程的消息三中是否携带D2D BSR是通过所述第一UE根据确定了的触发蜂窝BSR的类型来确定的；
    所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功。
  17. 根据权利要求16所述的方法，其特征在于，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
  18. 根据权利要求16所述的方法，其特征在于，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
  19. 根据权利要求16-18任一项所述的方法，其特征在于，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述常规蜂窝BSR，且所述随机接入过程的消息三 中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述常规蜂窝BSR。
  20. 根据权利要求16-18任一项所述的方法，其特征在于，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述周期蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述周期蜂窝BSR。
  21. 根据权利要求16-18任一项所述的方法，其特征在于，若所述第一UE没有触发蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR。
  22. 根据权利要求19或20所述的方法，其特征在于，若所述随机接入过程的消息三中携带有所述D2D BSR，则所述随机接入过程的消息三中不再携带填充蜂窝BSR。
  23. 根据权利要求16所述的方法，其特征在于，所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功，具体包括：
    若所述随机接入过程的消息三中携带D2D BSR，则所述基站向所述第一UE发送携带D2D资源的信令，以供所述第一UE确定随机接入成功。
  24. 根据权利要求16所述的方法，其特征在于，所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功，具体包括：
    若所述随机接入过程的消息三中携带截断D2D BSR，则所述基站向所述第一UE发送携带上行蜂窝资源的信令，以供所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
  25. 根据权利要求16所述的方法，其特征在于，所述基站根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功，具体包括：
    若所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则所述基站向所述第一UE发送随机接入冲突解决信令，且所述随机接入冲突解决信令中携带有随机接入冲突解决标识，以供所述第一UE确定随机接入成功。
  26. 根据权利要求25所述的方法，其特征在于，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
  27. 根据权利要求23-26任一项所述的方法，其特征在于，所述向所述第一UE反馈信令之后，所述方法还包括：
    所述基站向所述第一UE发送D2D资源调度消息，以供所述第一UE根据所述D2D资源调度消息，向第二UE发送数据；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令。
  28. 根据权利要求27所述的方法，其特征在于，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
  29. 一种UE，其特征在于，包括：
    接收模块，用于当第一用户设备UE有设备对设备D2D数据等待发送时，触发D2D缓冲区状态报告BSR，并接收基站发送的上行蜂窝资源；
    处理模块，用于判断是否已经触发蜂窝BSR，并在确定触发了所述蜂窝BSR时，根据触发的所述蜂窝BSR的类型，确定是否在随机接入过程的消息三中携带所述D2D BSR；
    发送模块，用于将确定的随机接入过程的消息三通过所述上行蜂窝资源上报给基站；
    所述接收模块，用于接收基站发送的信令；
    所述处理模块，用于在所述接收模块接收基站发送的信令后，根据所述信令判断随机接入过程是否成功。
  30. 根据权利要求29所述的UE，其特征在于，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
  31. 根据权利要求29所述的UE，其特征在于，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
  32. 根据权利要求29-31任一项所述的UE，其特征在于，所述处理模块还用于：
    若所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则在随机接入过程的消息三中携带所述常规蜂窝BSR，且不在所述随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则在所述随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述常规蜂窝BSR。
  33. 根据权利要求29-31任一项所述的UE，其特征在于，所述处理模块还用于：
    若所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则在随机接入过程的消息三中携带所述周期蜂窝BSR，且不在所述随机接入过程的消息三中携带所述D2D BSR；若所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则在所述随机过程的消息三中携带所述D2D BSR，且不在所述随机接入过程的消息三中携带所述周期蜂窝BSR。
  34. 根据权利要求29-31任一项所述的UE，其特征在于，所述处理模块还用于：
    若所述第一UE没有触发蜂窝BSR，则在随机接入过程的消息三中携带所述D2D BSR。
  35. 根据权利要求32或33所述的UE，其特征在于，若所述第一UE在随机接入过程的消息三中携带所述D2D BSR，则不再将填充蜂窝BSR携带在随机接入过程的消息三中。
  36. 根据权利要求29所述的UE，其特征在于，所述处理模块还用于：
    若所述信令中携带D2D资源，且所述随机接入过程的消息三中携带D2DBSR，则所述第一UE确定随机接入成功。
  37. 根据权利要求29所述的UE，其特征在于，所述处理模块还用于：
    若所述信令中携带上行蜂窝资源，且所述随机接入过程的消息三中携带截断D2D BSR，且所述第一UE当前没有上行蜂窝数据等待发送，则所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资 源进行发送的所述D2D BSR的部分内容。
  38. 根据权利要求29所述的UE，其特征在于，所述处理模块还用于：
    若所述信令为随机接入冲突解决信令，且所述随机接入冲突解决信令携带随机接入冲突解决标识，且所述消息三中携带D2D BSR或者蜂窝BSR，则所述第一UE确定随机接入成功。
  39. 根据权利要求38所述的UE，其特征在于，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
  40. 根据权利要求36-39任一项所述的UE，其特征在于，所述接收模块还用于：接收所述基站发送的D2D资源调度消息；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令；
    所述发送模块，用于根据所述D2D资源调度消息，向第二UE发送数据。
  41. 根据权利要求40所述的UE，其特征在于，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
  42. 根据权利要求40所述的UE，其特征在于，所述处理模块还用于：
    若确定服务小区对应的时间同步定时器TAT超时，则清空所述服务小区对应的基站分配的D2D资源；所述服务小区为所述第一UE所在的小区。
  43. 根据权利要求42所述的UE，其特征在于，所述处理模块还用于：若确定服务小区对应的时间同步定时器TAT超时，则判断所述服务小区对应的D2D发送混合自动重传请求HARQ进程上使用的资源是否由基站分配；
    若是，则清除所述D2D发送HARQ进程的数据。
  44. 一种基站，其特征在于，包括：
    发送模块，用于在第一用户设备UE有设备对设备D2D数据等待发送时，向所述第一UE发送上行蜂窝资源；
    接收模块，用于接收所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三；所述随机接入过程的消息三中是否携带D2D BSR是通过所述第一UE根据确定了的触发蜂窝BSR的类型来确定的；
    所述发送模块，还用于根据所述随机接入过程的消息三，向所述第一UE反馈信令，以供所述第一UE根据所述信令判断随机接入过程是否成功。
  45. 根据权利要求44所述的基站，其特征在于，所述蜂窝BSR的类型包括：常规蜂窝BSR、周期蜂窝BSR和填充蜂窝BSR。
  46. 根据权利要求44所述的基站，其特征在于，所述D2D BSR的类型包括：常规D2D BSR和周期D2D BSR。
  47. 根据权利要求44-46任一项所述的基站，其特征在于，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述常规蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为常规蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述常规蜂窝BSR。
  48. 根据权利要求44-46任一项所述的基站，其特征在于，若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带有所述周期蜂窝BSR，且所述随机接入过程的消息三中不携带所述D2D BSR；若所述第一UE已经触发蜂窝BSR，并且所述已经触发的蜂窝BSR的类型不为周期蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR，且所述随机接入过程的消息三中不携带所述周期蜂窝BSR。
  49. 根据权利要求44-46任一项所述的基站，其特征在于，若所述第一UE没有触发蜂窝BSR，则所述基站接收的所述第一UE通过所述上行蜂窝资源发送的随机接入过程的消息三中携带所述D2D BSR。
  50. 根据权利要求47或48所述的基站，其特征在于，若所述随机接入过程的消息三中携带有所述D2D BSR，则所述随机接入过程的消息三中不再携带填充蜂窝BSR。
  51. 根据权利要求44所述的基站，其特征在于，所述发送模块还用于：
    若所述随机接入过程的消息三中携带D2D BSR，则向所述第一UE发送携带D2D资源的信令，以供所述第一UE确定随机接入成功。
  52. 根据权利要求44所述的基站，其特征在于，所述发送模块还用于：
    若所述随机接入过程的消息三中携带截断D2D BSR，则向所述第一UE发送携带上行蜂窝资源的信令，以供所述第一UE确定随机接入成功；其中，所述截断D2D BSR为采用所述上行蜂窝资源进行发送的所述D2D BSR的部分内容。
  53. 根据权利要求44所述的基站，其特征在于，所述发送模块还用于：
    若所述随机接入过程的消息三中携带D2D BSR或者蜂窝BSR，则向所述第一UE发送随机接入冲突解决信令，且所述随机接入冲突解决信令中携带有随机接入冲突解决标识，以供所述第一UE确定随机接入成功。
  54. 根据权利要求53所述的基站，其特征在于，所述随机接入冲突解决信令包括随机接入冲突解决专用媒体接入控制MAC层子包头。
  55. 根据权利要求51-54任一项所述的基站，其特征在于，所述发送模块还用于：
    向所述第一UE发送D2D资源调度消息，以供所述第一UE根据所述D2D资源调度消息，向第二UE发送数据；所述D2D资源调度消息为所述基站根据所述随机接入过程的消息三中携带的D2D BSR，分配给所述第一UE的信令。
  56. 根据权利要求55所述的基站，其特征在于，所述D2D资源调度消息通过RRC消息承载，并且在所述RRC消息中指示所述D2D资源调度消息中的D2D资源所对应的服务小区标识。
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