CN106031288A - Random access contention resolution method, user equipment and base station - Google Patents
Random access contention resolution method, user equipment and base station Download PDFInfo
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Abstract
Disclosed are a random access contention resolution method, a user equipment and a base station, which are used for solving the problem that an Msg3 (comprising a BSR therein) is not successfully sent in a random access process but a UE considers that contention in the random access process is successfully resolved. The method in embodiments of the present invention comprises: a user equipment (UE) triggers a buffer status report (BSR) and triggers a random access process; when performing the random access process, the UE sends a message 3 (Msg3) carrying the BSR to a base station; the UE receives contention resolution signaling from the base station, the contention resolution signaling being contention resolution signaling sent by the base station after receiving the BSR; and the UE determines that contention resolution is completed after receiving the contention resolution signaling. The embodiments of the present invention also provide a user equipment and a base station. The embodiments of the present invention can solve the problem that an Msg3 (comprising a BSR therein) is not successfully sent in a random access process but a UE considers that contention in the random access process is successfully resolved.
Description
The present invention relates to communication technical field, more particularly to Stochastic accessing contention resolved method, user equipment and base station.
Long Term Evolution (LTE, Long Term Evolution) in network, user equipment (UE, User Equipment) need to obtain Radio Resource first before carrying out data transmission, above-mentioned data include ascending honeycomb data, closely service (ProSe, Proximity based Service) data, ProSe data or for terminal-pair terminal (D2D, Device-to-Device) data.Above-mentioned Radio Resource includes ascending honeycomb resource and closely Service Source.UE can send Buffer Status Report (BSR, Buffe Status Report) to base station, and base station is received after BSR as the corresponding resource of UE distribution.Above-mentioned BSR includes honeycomb BSR or closely services BSR.UE can be by random access procedure to base station transmission BSR, and specific random access procedure is：UE sends message 1 (Msg1, Message1), i.e. targeting sequencing code Preamble to base station first；Base station sends Msg2, i.e. accidental access response (RAR, Random Access Response) after Msg1 is received to UE；UE sends Msg3 to base station, and BSR is carried in Msg3；Base station sends Msg4, i.e. contention resolved Contention resolution signalings after Msg3 is received to UE, and base station is that UE distributes resource according to BSR contents after the BSR in receiving Msg3.
Base station is after Msg3 is received, pass through physical layer descending control channel (PDCCH, Physical Downlink Control Channel) uplink scheduling signaling is sent as the signaling of contention resolved, that is Msg4, UE is received by PDCCH thinks that base station has had correctly received Msg3 after the uplink scheduling signaling, think contention resolved success, and terminate random access procedure.
Due to UE according to whether receiving uplink scheduling on PDCCH to judge whether that base station has had correctly received Msg3.But it is a kind of it might be that base station may have received the BSR that UE is reported before random access procedure, then even if base station does not receive Msg3, base station may also carry out uplink scheduling (according to the BSR reported before).So UE thinks that base station has been received that Msg3 after uplink scheduling signaling is received, and think that contention resolved succeeds and terminates random access procedure, but in fact base station does not receive Msg3, so that causing Msg3 (including BSR therein) can not be successfully transmitted.
The content of the invention
The embodiments of the invention provide Stochastic accessing contention resolved method, user equipment and base station, the problem of Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the success of random access procedure contention resolved can solve the problem that.
In view of this, first aspect present invention provides a kind of Stochastic accessing contention resolved method, it may include：
User equipment (UE) triggers Buffer Status Report BSR, and triggers execution random access procedure；
The UE sends the Msg3 of message three for carrying the BSR to base station when performing random access procedure；
The UE receives the contention resolved signaling from the base station, and the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR；
The UE determines that contention resolved is completed after the contention resolved signaling is received.
With reference to first aspect present invention, in the first embodiment of first aspect present invention, it may include：
The BSR includes：Honeycomb BSR or closely service ProSe BSR.
With reference to the first embodiment of first aspect present invention, in the second embodiment of first aspect present invention, it may include：
The contention resolved signaling includes：The contention resolved signaling of the random access procedure of medium access key-course MAC layer triggering.
With reference to first aspect present invention, the first embodiment of first aspect present invention, the second embodiment of first aspect present invention, in the 3rd embodiment of first aspect present invention, it may include：
The contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to first aspect present invention, the first embodiment of first aspect present invention, the second embodiment of first aspect present invention, in the 4th embodiment of first aspect present invention, it may include：
The contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to first aspect present invention, the first embodiment of first aspect present invention, the second embodiment of first aspect present invention, in the 5th embodiment of first aspect present invention, it may include：
The UE receives the uplink scheduling signaling carried on the physical layer descending control channel PDCCH from the base station.
With reference to the 5th embodiment of first aspect present invention, in the 6th embodiment of first aspect present invention, it may include：
The UE determines after the completion of contention resolved that the UE triggers target BSR, and reports the target BSR, the target BSR to be the BSR newly triggered on the ascending resource that the uplink scheduling signaling is indicated.
In view of this, second aspect of the present invention provides a kind of Stochastic accessing contention resolved method, it may include：
Base station receives in message three Msg3, the Msg3 from the UE in the random access procedure of user equipment (UE) and carries Buffer Status Report BSR；
The base station sends contention resolved signaling after the Msg3 is received to the UE, to cause the UE to determine that contention resolved is completed by the contention resolved signaling.
With reference to second aspect of the present invention, in the first embodiment of second aspect of the present invention, it may include：
The BSR includes：Honeycomb BSR or closely service ProSe BSR.
With reference to second aspect of the present invention, the first embodiment of second aspect of the present invention, in the second embodiment of second aspect of the present invention, it may include：
The contention resolved signaling includes：Descending medium access key-course MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to second aspect of the present invention, the first embodiment of second aspect of the present invention, in the 3rd embodiment of second aspect of the present invention, it may include：
The contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to second aspect of the present invention, the first embodiment of second aspect of the present invention, in the 4th embodiment of second aspect of the present invention, it may include：
The base station sends the uplink scheduling signaling carried on physical layer descending control channel PDCCH to the UE after the Msg3 is received.
In view of this, third aspect present invention provides a kind of user equipment (UE), it may include：
First trigger element, for triggering Buffer Status Report BSR, and triggers execution random access procedure；
First transmitting element, for when performing random access procedure, the Msg3 of message three for carrying the BSR to be sent to base station；
First receiving unit, for receiving the contention resolved signaling from the base station, the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR；
Determining unit, for after the contention resolved signaling is received, determining that contention resolved is completed.
With reference to third aspect present invention, in the first embodiment of third aspect present invention, it may include：
The BSR includes：Honeycomb BSR or closely service ProSe BSR.
With reference to the first embodiment of third aspect present invention, in the second embodiment of third aspect present invention, it may include：
The contention resolved signaling includes：The contention resolved signaling of the random access procedure triggered for medium access key-course MAC layer.
With reference to third aspect present invention, the first embodiment of third aspect present invention, the second embodiment of third aspect present invention, in the 3rd embodiment of third aspect present invention, it may include：
The contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to third aspect present invention, the first embodiment of third aspect present invention, the second embodiment of third aspect present invention, in the 4th embodiment of third aspect present invention, it may include：
The contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to third aspect present invention, the first embodiment of third aspect present invention, the second embodiment of third aspect present invention, in the 5th embodiment of third aspect present invention, it may include：
The UE receives the uplink scheduling signaling carried on the physical layer descending control channel PDCCH from the base station.
With reference to the 5th embodiment of third aspect present invention, in the 6th embodiment of third aspect present invention, it may include：
Second trigger element, after the completion of determining contention resolved in the UE, it is the BSR newly triggered to trigger target BSR, the target BSR；
Reporting unit, for reporting the target BSR on the ascending resource that the uplink scheduling signaling is indicated.
In view of this, fourth aspect present invention provides a kind of base station, it may include：
Second receiving unit, in the random access procedure of user equipment (UE), receiving from described
Buffer Status Report BSR is carried in UE message three Msg3, the Msg3；
Second transmitting element, for after the Msg3 is received, contention resolved signaling to be sent to the UE, to cause the UE to determine that contention resolved is completed by the contention resolved signaling.
With reference to fourth aspect present invention, in the first embodiment of fourth aspect present invention, it may include：
The BSR includes：Honeycomb BSR or closely service ProSe BSR.
With reference to fourth aspect present invention, the first embodiment of fourth aspect present invention, in the second embodiment of fourth aspect present invention, it may include：
The contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to fourth aspect present invention, the first embodiment of fourth aspect present invention, in the 3rd embodiment of fourth aspect present invention, it may include：
The contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
With reference to fourth aspect present invention, the first embodiment of fourth aspect present invention, in the 4th embodiment of fourth aspect present invention, it may include：
After the Msg3 is received, the uplink scheduling signaling carried on physical layer descending control channel PDCCH is sent to the UE.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：Random access procedure is triggered by UE, and then reports the Msg3 for carrying BSR to base station in the random access procedure, then determines that contention resolved is completed by contention resolved signaling.Contention resolved signaling is just sent because base station is only successfully received after BSR, therefore, UE is after it have received the contention resolved signaling, it is possible to determine that base station has been successfully received BSR, it is believed that contention resolved success.Therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is Stochastic accessing contention resolved method one embodiment schematic diagram in the embodiment of the present invention；
Fig. 2 is another embodiment schematic diagram of Stochastic accessing contention resolved method in the embodiment of the present invention；
Fig. 3 is another embodiment schematic diagram of Stochastic accessing contention resolved method in the embodiment of the present invention；
Fig. 4 is another embodiment schematic diagram of Stochastic accessing contention resolved method in the embodiment of the present invention；
Fig. 5 is another embodiment schematic diagram of Stochastic accessing contention resolved method in the embodiment of the present invention；
Fig. 6 is another embodiment schematic diagram of Stochastic accessing contention resolved method in the embodiment of the present invention；
Fig. 7 is user equipment (UE) one embodiment schematic diagram in the embodiment of the present invention；
Fig. 8 is another embodiment schematic diagram of user equipment (UE) in the embodiment of the present invention；
Fig. 9 is base station one embodiment schematic diagram in the embodiment of the present invention；
Figure 10 is terminal one embodiment schematic diagram in the embodiment of the present invention.
The embodiments of the invention provide Stochastic accessing contention resolved method, user equipment and base station, the problem of Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the success of random access procedure contention resolved can solve the problem that.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made should all belong to the scope of protection of the invention.
The (if present)s such as term " first ", " second ", " the 3rd " " the 4th " in description and claims of this specification and above-mentioned accompanying drawing are for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that the data so used can be exchanged in the appropriate case, so that the embodiments described herein can be implemented with the order in addition to the content for illustrating or describing herein.In addition, term " comprising " and " having " and their any deformation, it is intended to cover non-exclusive include, for example, process, method, system, product or the equipment for containing series of steps or unit are not necessarily limited to those steps clearly listed or unit, but may include not list clearly or for the intrinsic other steps of these processes, method, product or equipment or unit.
Referring to Fig. 1, Stochastic accessing contention resolved method one embodiment includes in the embodiment of the present invention：
101st, user equipment (UE) triggering Buffer Status Report BSR, and trigger execution random access procedure；
In the present embodiment, user equipment (UE) triggers Buffer Status Report BSR, and trigger execution random access procedure before carrying out data transmission.
102nd, the UE sends the Msg3 of message three for carrying the BSR to base station when performing random access procedure；
Above-mentioned UE sends above-mentioned BSR in the Msg3 of random access procedure when performing random access procedure to base station.
103rd, the UE receives the contention resolved signaling from the base station, and the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR；
The contention resolved signaling is the contention resolved signaling for the random access procedure that MAC layer is triggered.
After above-mentioned base station receives the Msg3 for carrying above-mentioned BSR, above-mentioned base station sends contention resolved signaling to above-mentioned UE, and above-mentioned UE receives the contention resolved signaling.
104th, the UE determines that contention resolved is completed after the contention resolved signaling is received.
Above-mentioned UE determines that contention resolved is completed after the above-mentioned contention resolved signaling that above-mentioned base station is sent is received.
In the present embodiment, random access procedure is triggered by UE, and then reports BSR to base station in the random access procedure, then determines that contention resolved is completed by contention resolved signaling.Contention resolved signaling is just sent because base station is only successfully received after BSR, therefore, UE is after it have received the contention resolved signaling, it is possible to determine that base station has been successfully received BSR, it is believed that contention resolved success.Therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
It should be noted that above-mentioned contention resolved signaling includes diversified forms, illustrate separately below：
First, medium access key-course MAC layer signaling：
Above-mentioned MAC layer signaling includes：
1st, descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier (ID, Identity) as contention resolved signaling.
In order to make it easy to understand, the Stochastic accessing contention resolved method in the embodiment of the present invention is described in detail below, referring to Fig. 2, another embodiment of Stochastic accessing contention resolved method includes in the embodiment of the present invention：
201st, user equipment (UE) triggering Buffer Status Report BSR, and trigger execution random access procedure；
In the present embodiment, user equipment (UE) triggers Buffer Status Report BSR before carrying out data transmission,
Specifically by medium access control (MAC, Media Access Control) layer triggering BSR of the UE, and trigger execution random access procedure.
It should be noted that above-mentioned BSR is in triggering but does not send state, the wherein BSR includes honeycomb BSR or ProSe BSR, in addition to other categorical datas, is specifically not construed as limiting herein.
202nd, the UE sends the Msg3 for carrying the BSR to base station when performing random access procedure；
Above-mentioned UE is received after the accidental access response RAR that above-mentioned base station is sent when performing random access procedure, is sent Msg3 to the base station, above-mentioned BSR is carried in the Msg3.
203rd, the UE receives the contention resolved signaling from the base station, and the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR, and the contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling；
After above-mentioned base station receives the Msg3 for carrying above-mentioned BSR, above-mentioned base station sends contention resolved signaling to above-mentioned UE, and above-mentioned UE receives the contention resolved signaling.Wherein the contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
204th, the UE determines that contention resolved is completed after the contention resolved signaling is received.
Above-mentioned UE because base station is just to send contention resolved signaling after Msg3 is received, it is possible to determine that contention resolved success, and judges that random access procedure is successfully completed after the contention resolved signaling is received.
In the present embodiment, random access procedure is triggered by UE, and then reports the Msg3 for carrying BSR to base station in the random access procedure, then determines that contention resolved is completed by contention resolved signaling.Contention resolved signaling is just sent because base station is only successfully received after BSR, therefore, UE is after it have received the contention resolved signaling, it is possible to determine that base station has been successfully received BSR, it is believed that contention resolved success.Therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
Secondly, present embodiments provide a kind of contention resolved signaling, the contention resolved signaling is only properly received after Msg3 in base station and just sent, also provide for it is a kind of solve Msg3 (including BSR therein) in random access procedure and be not successfully transmitted but method the problem of UE thinks the success of random access procedure contention resolved, add the selectivity of scheme.
2nd, MAC layer attached bag head, the MAC layer attached bag head includes：For patrolling as contention resolved signaling
Collect channel logo ID.
In order to make it easy to understand, the Stochastic accessing contention resolved method in the embodiment of the present invention is described in detail below, referring to Fig. 3, another embodiment of Stochastic accessing contention resolved method includes in the embodiment of the present invention：
301st, user equipment (UE) triggering Buffer Status Report BSR, and trigger execution random access procedure；
In the present embodiment, user equipment (UE) triggers Buffer Status Report BSR before carrying out data transmission, and triggers BSR specifically by the MAC layer of the UE, and trigger execution random access procedure.
It should be noted that above-mentioned BSR is in triggering but does not send state, the wherein BSR includes honeycomb BSR or ProSe BSR, in addition to other categorical datas, is specifically not construed as limiting herein.
302nd, the UE sends the Msg3 for carrying the BSR to base station when performing random access procedure；
Above-mentioned UE is received after the RAR that above-mentioned base station is sent when performing random access procedure, is sent Msg3 to the base station, above-mentioned BSR is carried in the Msg3.
303rd, the UE receives the contention resolved signaling from the base station, and the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR, and the contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling；
After above-mentioned base station receives the Msg3 for carrying above-mentioned BSR, above-mentioned base station sends contention resolved signaling to above-mentioned UE, and above-mentioned UE receives the contention resolved signaling.Wherein the contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
304th, the UE determines that contention resolved is completed after the contention resolved signaling is received.
Above-mentioned UE because base station is just to send contention resolved signaling after Msg3 is received, it is possible to determine that contention resolved success, and judges that random access procedure is successfully completed after the contention resolved signaling is received.
In the present embodiment, random access procedure is triggered by UE, and then reports the Msg3 for carrying BSR to base station in the random access procedure, then determines that contention resolved is completed by contention resolved signaling.Contention resolved signaling is just sent because base station is only successfully received after BSR, therefore, UE is after it have received the contention resolved signaling, it is possible to determine that base station has been successfully received BSR, it is believed that contention resolved success.Therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
Secondly, the present embodiment separately provides a kind of contention resolved signaling, the contention resolved signaling is only properly received after Msg3 in base station and just sent, and also provides for a kind of solving Msg3 (including BSR therein) in random access procedure and not being successfully transmitted but side the problem of UE thinks the success of random access procedure contention resolved
Method, adds the selectivity of scheme.
2nd, the uplink scheduling signaling carried on physical layer descending control channel PDCCH：
In order to make it easy to understand, the Stochastic accessing contention resolved method in the embodiment of the present invention is described in detail below, referring to Fig. 4, another embodiment of Stochastic accessing contention resolved method includes in the embodiment of the present invention：
401st, user equipment (UE) triggering Buffer Status Report BSR, and trigger execution random access procedure；
In the present embodiment, user equipment (UE) triggers Buffer Status Report BSR before carrying out data transmission, and triggers BSR specifically by the MAC layer of the UE, and trigger execution random access procedure.
It should be noted that above-mentioned BSR is in triggering but does not send state, the wherein BSR includes honeycomb BSR or ProSe BSR, in addition to other categorical datas, is specifically not construed as limiting herein.
402nd, the UE sends the Msg3 for carrying the BSR to base station when performing random access procedure；
Above-mentioned UE is received after the RAR that above-mentioned base station is sent when performing random access procedure, is sent Msg3 to the base station, above-mentioned BSR is carried in the Msg3.
403rd, the UE receives the uplink scheduling signaling carried on the physical layer descending control channel PDCCH from the base station；
After above-mentioned base station receives the Msg3 for carrying above-mentioned BSR, above-mentioned base station sends contention resolved signaling to above-mentioned UE, and above-mentioned UE receives the contention resolved signaling.Wherein the contention resolved signaling includes：The uplink scheduling signaling carried on physical layer descending control channel PDCCH.
404th, after the completion of the UE determines contention resolved, the UE triggers target BSR, and reports target BSR, target BSR to be the BSR newly triggered on the ascending resource that the uplink scheduling signaling is indicated.
Above-mentioned UE determines that contention resolved is completed after the uplink scheduling signaling is received, and the UE triggers new BSR, and reports above-mentioned new BSR on the ascending resource that the uplink scheduling signaling is indicated.
In the present embodiment, after the completion of UE determines contention resolved, a new BSR is reported again, and may not be properly received the BSR that Msg3 causes this addresses the problem base station reports failure problem.
In order to make it easy to understand, the Stochastic accessing contention resolved method in the embodiment of the present invention is described with an actual application scenarios below：
User A is called by mobile phone to user B, and mobile phone sends BSR to base station by random access procedure, is specially：Mobile phone sends targeting sequencing code Preamble to base station, and after base station receives Preamble, mobile phone receives the accidental access response RAR that base station is sent, meanwhile, mobile phone sends Msg3 to base station, and BSR is carried in Msg3, after base station receives Msg3, mobile phone receives the descending competition that base station is sent
Signaling is solved, the wherein descending contention resolved signaling is the contention resolved signaling for the random access procedure that MAC layer is triggered.Concrete form is MAC layer attached bag head, and the MAC layer attached bag head includes being used for the logic channel ID as contention resolved signaling, after mobile phone receives the descending contention resolved signaling of base station transmission, judges contention resolved success, and judge to complete random access procedure.Meanwhile, base station is handset allocation resource according to BSR contents.
The Stochastic accessing contention resolved method in the embodiment of the present invention is described from the angle of user equipment (UE) above, the Stochastic accessing contention resolved method in the embodiment of the present invention is described from the angle of base station below.
Referring to Fig. 5, Stochastic accessing contention resolved method one embodiment includes in the embodiment of the present invention：
501st, base station receives in the Msg3 from the UE, the Msg3 in the random access procedure of user equipment (UE) and carries Buffer Status Report BSR；
In the present embodiment, base station receives in the Msg3 of UE transmissions, the wherein Msg3 when UE performs random access procedure and carries BSR.
502nd, the base station sends contention resolved signaling after the Msg3 is received to the UE, to cause the UE to determine that contention resolved is completed by the contention resolved signaling.
After above-mentioned base station receives above-mentioned Msg3, contention resolved signaling is sent to above-mentioned UE, UE is received after the contention resolved signaling, determine that contention resolved is completed.
In the present embodiment, the base station is received after above-mentioned Msg3, again contention resolved signaling is sent to the UE, the UE concludes contention resolved success again, and therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
In order to make it easy to understand, the Stochastic accessing contention resolved method in the embodiment of the present invention is described in detail below, referring to Fig. 6, another embodiment of Stochastic accessing contention resolved method includes in the embodiment of the present invention：
601st, base station receives in the Msg3 from the UE, the Msg3 in the random access procedure of user equipment (UE) and carries Buffer Status Report BSR；
In the present embodiment, base station receives in the Msg3 of UE transmissions, the wherein Msg3 when UE performs random access procedure and carries BSR.
It should be noted that the BSR includes honeycomb BSR or ProSe BSR, in addition to other categorical datas, specifically it is not construed as limiting herein.
602nd, the base station sends contention resolved signaling, to cause this after the Msg3 is received to the UE
UE determines that contention resolved is completed by the contention resolved signaling, and the contention resolved signaling includes：Descending medium access key-course MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
After above-mentioned base station receives above-mentioned Msg3, contention resolved signaling is sent to above-mentioned UE, UE is received after the contention resolved signaling, determine that contention resolved is completed, the contention resolved signaling includes：Descending medium access key-course MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
It should be noted that above-mentioned contention resolved signaling can also include：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
It should be noted that above-mentioned contention resolved signaling can also include：The uplink scheduling signaling carried on physical layer descending control channel PDCCH.Now above-mentioned UE is after the completion of receiving the uplink scheduling signaling and determining contention resolved, the uplink scheduling signaling indicate ascending resource on report new BSR, it is possible to solve Msg3 in random access procedure (including BSR therein) be not successfully transmitted but UE think random access procedure contention resolved success the problem of.
In the present embodiment, the base station is received after above-mentioned Msg3, again contention resolved signaling is sent to the UE, the UE concludes contention resolved success again, and therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
Secondly, present embodiments provide three kinds of different contention resolved signalings, can solve Msg3 in random access procedure (including BSR therein) be not successfully transmitted but UE think random access procedure contention resolved success the problem of.Add the selectivity of scheme.
In order to make it easy to understand, the Stochastic accessing contention resolved method in the embodiment of the present invention is described with an actual application scenarios below：
Base station receives the targeting sequencing code Preamble that mobile phone is sent, after base station receives Preamble, base station sends accidental access response RAR to mobile phone, after mobile phone receives RAR, base station receives the Msg3 that mobile phone is sent, BSR is carry in wherein Msg3, base station sends descending contention resolved signaling to mobile phone, and the wherein descending contention resolved signaling is the contention resolved signaling for the random access procedure that MAC layer is triggered.Concrete form is MAC layer attached bag head, and the MAC layer attached bag head includes being used for the logic channel ID as contention resolved signaling, after mobile phone receives the descending contention resolved signaling of base station transmission, judges contention resolved success, and judge to complete random access procedure.Meanwhile, base station is handset allocation resource according to BSR contents.
The user equipment (UE) in the embodiment of the present invention is described below, referring to Fig. 7, one embodiment of user equipment (UE) includes in the embodiment of the present invention：
First trigger element 701, for triggering Buffer Status Report BSR, and triggers execution random access procedure；
First transmitting element 702, for when performing random access procedure, the Msg3 for carrying the BSR to be sent to base station；
First receiving unit 703, for receiving the contention resolved signaling from the base station, the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR；
Determining unit 704, for after the contention resolved signaling is received, determining that contention resolved is completed.
In the present embodiment, random access procedure is triggered by UE, and then reports the Msg3 for carrying BSR to base station in the random access procedure, then determines that contention resolved is completed by contention resolved signaling.Contention resolved signaling is just sent because base station is only successfully received after BSR, therefore, UE is after it have received the contention resolved signaling, it is possible to determine that base station has been successfully received BSR, it is believed that contention resolved success.Therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
In order to make it easy to understand, the user equipment (UE) in the embodiment of the present invention is described in detail below, referring to Fig. 8, another embodiment of user equipment (UE) includes in the embodiment of the present invention：
First trigger element 801, for triggering Buffer Status Report BSR, and triggers execution random access procedure；
First transmitting element 802, for when performing random access procedure, the Msg3 for carrying the BSR to be sent to base station；
First receiving unit 803, for receiving the contention resolved signaling from the base station, the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR, and the contention resolved signaling includes：The uplink scheduling signaling carried on physical layer descending control channel PDCCH；
Determining unit 804, for after the uplink scheduling signaling is received, determining that contention resolved is completed；
Second trigger element 805, after the completion of determining contention resolved in the UE, triggers target BSR, target BSR is the BSR newly triggered；
Reporting unit 806, for reporting target BSR on the ascending resource that the uplink scheduling signaling is indicated.
It should be noted that the BSR includes honeycomb BSR or ProSe BSR, in addition to other categorical datas, specifically it is not construed as limiting herein.
It should be noted that the contention resolved signaling also includes：The contention resolved signaling of the random access procedure of MAC layer triggering；Specially：Descending MAC layer control element and its corresponding MAC layer attached bag head or MAC layer attached bag head, wherein MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
In the present embodiment, after the completion of UE determines contention resolved, a new BSR is reported again, and may not be properly received the BSR that Msg3 causes this addresses the problem base station reports failure problem.
Secondly, the present embodiment additionally provides two kinds of contention resolved signalings, both contention resolved signalings are only properly received after Msg3 in base station and just sent, without reporting a new BSR again, also provide for two kinds solve random access procedures in Msg3 (including BSR therein) be not successfully transmitted but UE think random access procedure contention resolved success the problem of method, add the selectivity of scheme.
In order to make it easy to understand, the interaction user equipment (UE) each unit in the present embodiment is described with an actual application scenarios below：
User equipment (UE) is before carrying out data transmission, and the first trigger element 801 triggers BSR by the MAC layer of the UE, and triggers execution random access procedure, and the wherein BSR is in triggering but does not send state；Above-mentioned UE is received after the RAR that above-mentioned base station is sent, the first transmitting element 802 sends Msg3 to the base station, and above-mentioned BSR is carried in the Msg3 when performing random access procedure；After above-mentioned base station receives the Msg3 for carrying above-mentioned BSR, above-mentioned base station sends contention resolved signaling to above-mentioned UE, and above-mentioned UE receives the contention resolved signaling by the first receiving unit 803.Wherein the contention resolved signaling includes：The uplink scheduling signaling carried on physical layer descending control channel PDCCH；Above-mentioned UE is after the uplink scheduling signaling is received, and determining unit 804 determines that contention resolved is completed, and the second trigger element 805 triggers new BSR, while reporting unit 806 reports above-mentioned new BSR on the ascending resource that the uplink scheduling signaling is indicated.The BSR that Msg3 causes, which may be not properly received, this addresses the problem base station reports failure problem.
The base station in the embodiment of the present invention is described below, referring to Fig. 9, one embodiment of base station includes in the embodiment of the present invention：
Second receiving unit 901, in the random access procedure of user equipment (UE), receiving in the Msg3 from the UE, the Msg3 and carrying Buffer Status Report BSR；
Second transmitting element 902, for after the Msg3 is received, contention resolved letter to be sent to the UE
Order, to cause the UE to determine that contention resolved is completed by the contention resolved signaling.
It should be noted that the BSR includes honeycomb BSR or ProSe BSR, in addition to other categorical datas, specifically it is not construed as limiting herein.
It should be noted that the contention resolved signaling includes：The uplink scheduling signaling carried on descending MAC layer control element and its corresponding MAC layer attached bag head, MAC layer attached bag head or physical layer descending control channel PDCCH, wherein MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.The contention resolved signaling also includes other forms, is specifically not construed as limiting herein.
In the present embodiment, the base station is received after above-mentioned Msg3, again contention resolved signaling is sent to the UE, the UE concludes contention resolved success again, and therefore, it is possible to solve, Msg3 in random access procedure (including BSR therein) is not successfully transmitted but UE thinks the problem of random access procedure contention resolved is successful.
Secondly, present embodiments provide three kinds of different contention resolved signalings, can solve Msg3 in random access procedure (including BSR therein) be not successfully transmitted but UE think random access procedure contention resolved success the problem of.Add the selectivity of scheme.
In order to make it easy to understand, the interaction base station each unit in the present embodiment is described with an actual application scenarios below：
Base station is when UE performs random access procedure, and the second receiving unit 901 receives in the Msg3 that the UE is sent, the wherein Msg3 and carries BSR.After above-mentioned base station receives above-mentioned Msg3, the second transmitting element 902 sends contention resolved signaling to above-mentioned UE, and UE is received after the contention resolved signaling, determines that contention resolved is completed.Wherein the contention resolved signaling includes：The uplink scheduling signaling carried on descending MAC layer control element and its corresponding MAC layer attached bag head, MAC layer attached bag head or physical layer descending control channel PDCCH, wherein MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
The terminal in the embodiment of the present invention is described below, referring to Fig. 10, one embodiment of terminal includes in the embodiment of the present invention：
The embodiment of the present invention additionally provides a kind of terminal, as shown in Figure 10, for convenience of description, illustrate only the part related to the embodiment of the present invention, and particular technique details is not disclosed, refer to present invention method part.The terminal can be to include mobile phone, tablet personal computer, PDA (Personal Digital Assistant, personal digital assistant), POS (Point of Sales, point-of-sale terminal), any terminal device such as vehicle-mounted computer, so that terminal is mobile phone as an example：
Figure 10 is illustrated that the block diagram of the part-structure of the mobile phone related to terminal provided in an embodiment of the present invention.With reference to Figure 10, mobile phone includes：Radio frequency (Radio Frequency, RF) the part such as circuit 1010, memory 1020, input block 1030, display unit 1040, sensor 1050, voicefrequency circuit 1060, Wireless Fidelity (wireless fidelity, WiFi) module 1070, processor 1080 and power supply 1090.It it will be understood by those skilled in the art that the handset structure shown in Figure 10 does not constitute the restriction to mobile phone, can include than illustrating more or less parts, either combine some parts or different parts arrangement.
Each component parts of mobile phone is specifically introduced with reference to Figure 10：
RF circuits 1010 can be used for receiving and sending messages or communication process in, the reception and transmission of signal especially, after the downlink information of base station is received, are handled to processor 1080；In addition, being sent to base station by up data are designed.Generally, RF circuits 1010 include but is not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise Amplifier, LNA), duplexer etc..In addition, RF circuits 1010 can also be communicated by radio communication with network and other equipment.Above-mentioned radio communication can use any communication standard or agreement, including but not limited to global system for mobile communications (Global System of Mobile communication, GSM), general packet radio service (General Packet Radio Service, GPRS), CDMA (Code Division Multiple Access, CDMA), WCDMA (Wideband Code Division Multiple Access, WCDMA), Long Term Evolution (Long Term Evolution, LTE), Email, Short Message Service (Short Messaging Service, SMS) etc..
Memory 1020 can be used for storage software program and module, and processor 1080 is stored in the software program and module of memory 1020 by operation, so as to perform various function application and the data processing of mobile phone.Memory 1020 can mainly include storing program area and storage data field, wherein, application program (such as sound-playing function, image player function etc.) that storing program area can be needed for storage program area, at least one function etc.；Storage data field can be stored uses created data (such as voice data, phone directory etc.) etc. according to mobile phone.In addition, memory 1020 can include high-speed random access memory, nonvolatile memory, for example, at least one disk memory, flush memory device or other volatile solid-state parts can also be included.
Input block 1030 can be used for the numeral or character information for receiving input, and the key signals that generation is set with the user of mobile phone and function control is relevant to input.Specifically, input block 1030 may include contact panel 1031 and other input equipments 1032.Contact panel 1031, also referred to as touch-screen, collect and use
Touch operation (such as user use any suitable object or annex operations on contact panel 1031 or contact panel 1031 near such as finger, stylus) of the family on or near it, and corresponding attachment means are driven according to formula set in advance.Optionally, contact panel 1031 may include both touch detecting apparatus and touch controller.Wherein, touch detecting apparatus detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 1080, and the order sent of reception processing device 1080 and can be performed.Furthermore, it is possible to realize contact panel 1031 using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel 1031, input block 1030 can also include other input equipments 1032.Specifically, the one or more that other input equipments 1032 can include but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc..
Display unit 1040 can be used for showing the information inputted by user or be supplied to the information of user and the various menus of mobile phone.Display unit 1040 may include display panel 1041, optionally, display panel 1041 can be configured using forms such as liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diodes (Organic Light-Emitting Diode, OLED).Further, contact panel 1031 can cover display panel 1041, after contact panel 1031 detects the touch operation on or near it, processor 1080 is sent to determine the type of touch event, corresponding visual output is provided on display panel 1041 according to the type of touch event with preprocessor 1080.Although in Fig. 10, contact panel 1031 and display panel 1041 are input and the input function that mobile phone is realized as two independent parts, but in some embodiments it is possible to by contact panel 1031 and the input that is integrated and realizing mobile phone of display panel 1041 and output function.
Mobile phone may also include at least one sensor 1050, such as optical sensor, motion sensor and other sensors.Specifically, optical sensor may include ambient light sensor and proximity transducer, wherein, ambient light sensor can adjust the brightness of display panel 1041 according to the light and shade of ambient light, proximity transducer can close display panel 1041 and/or backlight when mobile phone is moved in one's ear.It is used as one kind of motion sensor, accelerometer sensor can detect in all directions the size of (generally three axles) acceleration, size and the direction of gravity are can detect that when static, application (such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) available for identification mobile phone posture etc.；The other sensors such as the gyroscope, barometer, hygrometer, thermometer, the infrared ray sensor that can also configure as mobile phone,
It will not be repeated here.
Voicefrequency circuit 1060, loudspeaker 1061, microphone 1062 can provide the COBBAIF between user and mobile phone.Electric signal after the voice data received conversion can be transferred to loudspeaker 1061, voice signal output is converted to by loudspeaker 1061 by voicefrequency circuit 1060；On the other hand, the voice signal of collection is converted to electric signal by microphone 1062, by voicefrequency circuit 1060 receive after be converted to voice data, after voice data output processor 1080 is handled again, through RF circuits 1010 to be sent to such as another mobile phone, or voice data exported to memory 1020 so as to further processing.
WiFi belongs to short range wireless transmission technology, and mobile phone can help user to send and receive e-mail, browse webpage and access streaming video etc. by WiFi module 1070, and it has provided the user wireless broadband internet and accessed.Although Figure 10 shows WiFi module 1070, but it is understood that, it is simultaneously not belonging to must be configured into for mobile phone, can be omitted as needed in the essential scope for do not change invention completely.
Processor 1080 is the control centre of mobile phone, utilize various interfaces and the various pieces of connection whole mobile phone, software program and/or module in memory 1020 are stored in by operation or execution, and call the data being stored in memory 1020, the various functions and processing data of mobile phone are performed, so as to carry out integral monitoring to mobile phone.Optionally, processor 1080 may include one or more processing units；It is preferred that, processor 1080 can integrated application processor and modem processor, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor mainly handles radio communication.It is understood that above-mentioned modem processor can not also be integrated into processor 1080.
Mobile phone also includes the power supply 1090 (such as battery) powered to all parts, it is preferred that, power supply can be logically contiguous by power-supply management system and processor 1080, so as to realize the functions such as management charging, electric discharge and power managed by power-supply management system.
Although not shown, mobile phone can also include camera, bluetooth module etc., will not be repeated here.
In embodiments of the present invention, the processor 1080 included by the terminal also has following functions：
Buffer Status Report BSR is triggered, and triggers execution random access procedure；
When performing random access procedure, the Msg3 of message three for carrying the BSR is sent to base station；
The contention resolved signaling from the base station is received, the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR；
After the contention resolved signaling is received, determine that contention resolved is completed.
It is apparent to those skilled in the art that, for convenience and simplicity of description, foregoing description
System, apparatus, and unit specific work process, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or all or part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions to cause a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
Described above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or to which part
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (24)
- A kind of Stochastic accessing contention resolved method, it is characterised in that including：User equipment (UE) triggers Buffer Status Report BSR, and triggers execution random access procedure；The UE sends the Msg3 of message three for carrying the BSR to base station when performing random access procedure；The UE receives the contention resolved signaling from the base station, and the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR；The UE determines that contention resolved is completed after the contention resolved signaling is received.
- Stochastic accessing contention resolved method according to claim 1, it is characterised in that the BSR includes：Honeycomb BSR or closely service ProSe BSR.
- Stochastic accessing contention resolved method according to claim 2, it is characterised in that the contention resolved signaling includes：The contention resolved signaling of the random access procedure of medium access key-course MAC layer triggering.
- Stochastic accessing contention resolved method according to any one of claim 1 to 3, it is characterised in that the contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
- Stochastic accessing contention resolved method according to any one of claim 1 to 3, it is characterised in that the contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
- Stochastic accessing contention resolved method according to any one of claim 1 to 3, it is characterised in that the UE, which receives the contention resolved signaling from the base station, to be included：The UE receives the uplink scheduling signaling carried on the physical layer descending control channel PDCCH from the base station.
- Stochastic accessing contention resolved method according to claim 6, it is characterised in that methods described also includes：The UE determines after the completion of contention resolved that the UE triggers target BSR, and reports the target BSR, the target BSR to be the BSR newly triggered on the ascending resource that the uplink scheduling signaling is indicated.
- A kind of Stochastic accessing contention resolved method, it is characterised in that including：Base station receives in message three Msg3, the Msg3 from the UE in the random access procedure of user equipment (UE) and carries Buffer Status Report BSR；The base station sends contention resolved signaling after the Msg3 is received to the UE, to cause the UE to determine that contention resolved is completed by the contention resolved signaling.
- Stochastic accessing contention resolved method according to claim 8, it is characterised in that the BSR includes：Honeycomb BSR or closely service ProSe BSR.
- Stochastic accessing contention resolved method according to claim 8 or claim 9, it is characterised in that the contention resolved signaling includes：Descending medium access key-course MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
- Stochastic accessing contention resolved method according to claim 8 or claim 9, it is characterised in that the contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
- Stochastic accessing contention resolved method according to claim 8 or claim 9, it is characterised in that the base station sends contention resolved signaling after the Msg3 is received, to the UE to be included：The base station sends the uplink scheduling signaling carried on physical layer descending control channel PDCCH to the UE after the Msg3 is received.
- A kind of user equipment (UE), it is characterised in that including：First trigger element, for triggering Buffer Status Report BSR, and triggers execution random access procedure；First transmitting element, for when performing random access procedure, the Msg3 of message three for carrying the BSR to be sent to base station；First receiving unit, for receiving the contention resolved signaling from the base station, the contention resolved signaling is that the base station receives the contention resolved signaling sent after the BSR；Determining unit, for after the contention resolved signaling is received, determining that contention resolved is completed.
- User equipment (UE) according to claim 13, it is characterised in that the BSR includes：Honeycomb BSR or closely service ProSe BSR.
- User equipment (UE) according to claim 14, it is characterised in that the contention resolved signaling includes：The contention resolved signaling of the random access procedure triggered for medium access key-course MAC layer.
- User equipment (UE) according to any one of claim 13 to 15, it is characterised in that the contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
- User equipment (UE) according to any one of claim 13 to 15, it is characterised in that the contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
- User equipment (UE) according to any one of claim 13 to 15, it is characterised in that the UE, which receives the contention resolved signaling from the base station, to be included：The UE receives the uplink scheduling signaling carried on the physical layer descending control channel PDCCH from the base station.
- User equipment (UE) according to claim 18, it is characterised in that the user equipment (UE) also includes：Second trigger element, after the completion of determining contention resolved in the UE, it is the BSR newly triggered to trigger target BSR, the target BSR；Reporting unit, for reporting the target BSR on the ascending resource that the uplink scheduling signaling is indicated.
- A kind of base station, it is characterised in that including：Second receiving unit, in the random access procedure of user equipment (UE), receiving in message three Msg3, the Msg3 from the UE and carrying Buffer Status Report BSR；Second transmitting element, for after the Msg3 is received, contention resolved signaling to be sent to the UE, to cause the UE to determine that contention resolved is completed by the contention resolved signaling.
- Base station according to claim 20, it is characterised in that the BSR includes：Honeycomb BSR or closely service ProSe BSR.
- Base station according to claim 20 or 21, it is characterised in that the contention resolved signaling includes：Descending MAC layer control element and its corresponding MAC layer attached bag head, the MAC layer attached bag head include：For the Logic Channel Identifier ID as contention resolved signaling.
- Base station according to claim 20 or 21, it is characterised in that the contention resolved signaling includes：MAC layer attached bag head, the MAC layer attached bag head includes：For the Logic Channel Identifier ID as contention resolved signaling.
- Base station according to claim 20 or 21, it is characterised in that described after the Msg3 is received, sending contention resolved signaling to the UE includes：After the Msg3 is received, the uplink scheduling signaling carried on physical layer descending control channel PDCCH is sent to the UE.
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| PCT/CN2015/071970 WO2016119227A1 (en) | 2015-01-30 | 2015-01-30 | Random access contention resolution method, user equipment and base station |
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| CN102300331A (en) * | 2011-08-19 | 2011-12-28 | 电信科学技术研究院 | Data transmission method and equipment |
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| US20110085509A1 (en) * | 2008-08-11 | 2011-04-14 | Sung Jun Park | Data transmission method and user equipment for the same |
| CN102918914A (en) * | 2010-04-01 | 2013-02-06 | 三星电子株式会社 | Enhanced random access mechanism in wireless communication system |
| CN102300331A (en) * | 2011-08-19 | 2011-12-28 | 电信科学技术研究院 | Data transmission method and equipment |
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