CN105025593A

CN105025593A - Entity release method and equipment

Info

Publication number: CN105025593A
Application number: CN201410166045.6A
Authority: CN
Inventors: 赵亚利; 张惠英
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-04-23
Filing date: 2014-04-23
Publication date: 2015-11-04
Anticipated expiration: 2034-04-23
Also published as: CN105025593B

Abstract

The embodiment of the invention relates to the technical field of radio communication, and particularly relates to an entity release method and equipment which are used for realization of PDCP/RLC entity release in a D2D scene. The method of the embodiment of the invention comprises the steps that a D2D UE specific layer judges whether at least one D2D bearer supported by the specific layer requires to be released; and after the D2D UE specific layer confirms that at least one D2D bearer supported by the specific layer requires to be released, an entity corresponding to the D2D bearer is released at the specific layer, wherein the D2D UE specific layer is a packet data convergence protocol PDCP layer or a radio link control RLC layer. PDCP/RLC entity release in the D2D scene is realized by the entity release method so that system performance is further enhanced.

Description

A kind of method and apparatus discharging entity

Technical field

The present invention relates to wireless communication technology field, particularly a kind of method and apparatus discharging entity.

Background technology

In LTE (Long Term Evolution, Long Term Evolution) system, what take is the central controlled mode of network, and namely the up-downgoing data of UE (subscriber equipment) carry out sending and receiving all under the control of a network.Communication between UE and UE, is undertaken forwarding and controlling by network.There is not direct communication link between UE and UE, UE does not allow to send upstream data voluntarily, see Fig. 1 yet.

D2D (Device-to-Device, device-to-device), namely subscriber equipment leads directly to technology, refer to that contiguous subscriber equipment can carry out the mode of transfer of data in short range by direct connected link, do not need to be forwarded by Centroid (i.e. base station), as shown in Figure 2.

In 3GPP (3rd Generation Partnership Project, 3G (Third Generation) Moblie standardization body), D2D comprises following two large classes close to service:

D2D Discovery (device-to-device discovery): UE confirms another one UE in its vicinity.Such as, D2D UE can use this service to come taxi, the searching friend etc. in its vicinity of finding nearby;

D2D Communication (device-to-device communication): UE close to each other, by directly setting up link (as shown below) between two UE, like this by being originally converted into local DCL by the communication link of Internet Transmission, save a large amount of bandwidth sum network efficiencys; Or the UE that two close to each other, can utilize direct link communication to obtain the cheap communication service of stable high speed.

For D2D Communication, D2D receives UE and receives MACPDU (the Medium Access Control Packet Data Unit that D2D sends UE transmission, media access control protocol data unit) after, can make an explanation to this this packet of MAC PDU, obtain the LCID that D2D sends UE mark and packet ownership, if D2D receives UE and not yet sets up RLC and PDCP entity corresponding with it, then newly can set up PDCP (Packet Data Convergence Protocol corresponding with it, PDCP)/RLC (Radio Link Control, wireless spread-spectrum technology) entity.

At present, for D2D communication, D2D sends UE and D2D and receives UE after establishing PDCP/RLC entity, does not also have a kind of scheme for the release of PDCP/RLC entity.

Summary of the invention

The invention provides a kind of method, system and the equipment that discharge entity, in order to realize in D2D scene, discharge for PDCP/RLC entity.

A kind of method discharging entity that the embodiment of the present invention provides, comprising:

The certain layer of the subscriber equipment D2D UE of device-to-device judges that at least one D2D that described certain layer is supported carries the need of release;

The certain layer of described D2D UE, after determining at least one D2D carrying needs release that described certain layer is supported, carries corresponding entity in described certain layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP PDCP layer or wireless spread-spectrum technology rlc layer.

Preferably, the certain layer of described D2D UE judges that at least one D2D that described certain layer is supported carries the need of release, comprising:

The certain layer of described D2D UE, after receiving the supplementary representing the release of D2D carrying needs, determines that at least one D2D of described certain layer support carries needs and releases; Or

The certain layer of described D2D UE, after the D2D that described certain layer is supported carries release timer time-out, determines that at least one D2D carrying of described certain layer support needs release.

Preferably, the certain layer of described D2D UE receives supplementary, comprising:

The high level of described D2D UE, after needs release D2D carrying, sends described supplementary to the PDCP layer of described D2D UE and/or rlc layer;

If the high level of described D2D UE sends described supplementary to the PDCP layer of described D2D UE, the PDCP layer of described D2D UE is after receiving described supplementary, and the rlc layer to described D2D UE sends described supplementary;

If the high level of described D2D UE sends described supplementary to the rlc layer of described D2D UE, the rlc layer of described D2D UE is after receiving described supplementary, and the PDCP layer to described D2D UE sends described supplementary.

Preferably, if described D2D UE is described D2D send UE, described supplementary comprises the LCID of D2D carrying;

If described D2D UE is described D2D receive UE, described supplementary comprises D2D and sends the mark of UE and the LCID of D2D carrying.

Preferably, described supplementary also comprises group mark Group ID or broadcast identification broadcast ID or clean culture mark unicast ID.

Preferably, described D2D UE is that D2D receives UE;

The certain layer of described D2D UE receives supplementary, comprising:

Described D2D UE receives the signaling comprising supplementary that D2D sends UE transmission, the supplementary of carrying in signaling is indicated to PDCP layer and/or the rlc layer of described D2D UE;

If the PDCP layer of described D2D UE receives the described supplementary that D2D sends UE transmission, the rlc layer of described supplementary to described D2D UE sends by the PDCP layer of described D2D UE;

If the rlc layer of described D2D UE receives the described supplementary that D2D sends UE transmission, the PDCP layer of described supplementary to described D2D UE sends by the rlc layer of described D2D UE.

Preferably, the signaling comprising supplementary described in is the one in radio resource control information RRC signaling, media access control MAC signaling and physical layer signaling.

Preferably, described D2D UE is that D2D receives UE;

The certain layer of described D2D UE receives supplementary, comprising:

Described D2D UE receives the signaling comprising supplementary that base station sends, and the supplementary of carrying in signaling is indicated to PDCP layer and/or the rlc layer of described D2D UE;

If the PDCP layer of described D2D UE receives the described supplementary that base station sends, the rlc layer of described supplementary to described D2D UE sends by the PDCP layer of described D2D UE;

If the rlc layer of described D2D UE receives the described supplementary that base station sends, the PDCP layer of described supplementary to described D2D UE sends by the rlc layer of described D2D UE.

Preferably, described supplementary comprises the LCID of D2D carrying.

Preferably, what described supplementary also comprised that D2D sends in the mark of UE, Group ID, broadcastID and unicast ID is part or all of.

Preferably, the certain layer of described D2D UE judges that whether the D2D carrying release timer that described certain layer is supported is overtime, comprising:

Whether the PDCP layer of described D2D UE judges that the D2D corresponding with described PDCP layer carries release timer overtime; And/or

Whether the rlc layer of described D2D UE judges that the D2D corresponding with described rlc layer carries release timer overtime.

Preferably, the method also comprises:

If whether the PDCP layer of described D2D UE judges that the D2D corresponding with described PDCP layer carries release timer overtime, the PDCP layer of described D2D UE, after the judgement D2D corresponding with described PDCP layer carries release timer time-out, notifies the rlc layer release entity of described D2D UE;

If whether the rlc layer of described D2D UE judges that the D2D corresponding with described rlc layer carries release timer overtime, the rlc layer of described D2D UE, after the judgement D2D corresponding with described rlc layer carries release timer time-out, notifies the PDCP layer release entity of described D2D UE.

Preferably, the method also comprises:

If whether the PDCP layer of described D2D UE judges that the D2D corresponding with described PDCP layer carries release timer overtime, the PDCP layer of described D2D UE carries the non-time-out period of release timer at D2D, if receive the data sending UE from D2D, then restart described D2D and carry release timer, and when next subframe starts, carrying release timer operation duration to described D2D increases by a step value;

If whether the rlc layer of described D2D UE judges that the D2D corresponding with described rlc layer carries release timer overtime, the rlc layer of described D2D UE carries the non-time-out period of release timer at D2D, if receive the data sending UE from D2D, then restart described D2D and carry release timer, and when next subframe starts, carrying release timer operation duration to described D2D increases by a step value.

The method of the another kind release entity that the embodiment of the present invention provides, the method comprises:

Base station judges that at least one D2D carries the need of release;

Described base station is after determining to need to discharge at least one D2D carrying, and notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Preferably, described base station judges that at least one D2D carries the need of release, comprising:

The information that described base station reports according to D2D transmission UE, judges that at least one D2D carries the need of release.

The method of another release entity that the embodiment of the present invention provides, the method comprises:

The D2D carrying out D2D communication sends UE and judges that at least one D2D carries the need of release;

Described D2D sends UE after determining that at least one D2D carries needs release, and notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

A kind of user equipment (UE) discharging entity that the embodiment of the present invention provides, described UE is D2D UE, and this UE comprises:

Be positioned at certain layer processing module, for judging that at least one D2D that described certain layer is supported carries the need of release;

Be positioned at the release module of certain layer, for after determining at least one D2D carrying needs release that described certain layer is supported, carry corresponding entity in described certain layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Preferably, described processing module specifically for:

After receiving the supplementary representing the release of D2D carrying needs, determine that at least one D2D carrying of described certain layer support needs release; Or

The D2D supported in described certain layer carries release timer whether after time-out, determines that at least one D2D carrying of described certain layer support needs release.

Preferably, described D2D UE also comprises:

Be positioned at high-rise sending module, for after needs release D2D carrying, send described supplementary to the PDCP layer of described D2D UE and/or rlc layer;

Described processing module specifically for:

If the high level of described D2D UE sends described supplementary to the PDCP layer of described D2D UE, after receiving described supplementary, the rlc layer to described D2D UE sends described supplementary;

If the high level of described D2D UE sends described supplementary to the rlc layer of described D2D UE, after receiving described supplementary, the PDCP layer to described D2D UE sends described supplementary.

Preferably, described D2D UE is that D2D receives UE;

Described processing module is positioned at PDCP layer and/or the rlc layer of described D2D UE; Described processing module specifically for:

The signaling comprising described supplementary that D2D sends UE transmission is received by other layer of D2D UE;

If the PDCP layer of described D2D UE receives the described supplementary that D2D sends UE transmission, the rlc layer of described supplementary to described D2D UE is sent;

If the rlc layer of described D2D UE receives the described supplementary that D2D sends UE transmission, the PDCP layer of described supplementary to described D2D UE is sent.

Preferably, described D2D UE is that D2D receives UE;

The described supplementary of base station transmission is received by other layer of D2D UE;

If the PDCP layer of described D2D UE receives the described supplementary that base station sends, the rlc layer of described supplementary to described D2D UE is sent;

If the rlc layer of described D2D UE receives the described supplementary that base station sends, the PDCP layer of described supplementary to described D2D UE is sent.

Preferably, described supplementary comprises the LCID of D2D carrying.

Preferably, described processing module specifically for:

Whether overtimely judge that the D2D corresponding with described PDCP layer carries release timer; And/or whether judge that the D2D corresponding with described rlc layer carries release timer overtime.

Preferably, described processing module also for:

If it is whether overtime that the PDCP layer of described D2D UE judges that the D2D corresponding with described PDCP layer carries release timer, after the judgement D2D corresponding with described PDCP layer carries release timer time-out, notify the rlc layer release entity of described D2D UE;

If it is whether overtime that the rlc layer of described D2D UE judges that the D2D corresponding with described rlc layer carries release timer, after the judgement D2D corresponding with described rlc layer carries release timer time-out, notify the PDCP layer release entity of described D2D UE.

Preferably, described processing module also for:

If whether the PDCP layer of described D2D UE judges that the D2D corresponding with described PDCP layer carries release timer overtime, the non-time-out period of release timer is carried at D2D, if receive the data sending UE from D2D, then restart described D2D and carry release timer, and when next subframe starts, carrying release timer operation duration to described D2D increases by a step value;

If whether the rlc layer of described D2D UE judges that the D2D corresponding with described rlc layer carries release timer overtime, the non-time-out period of release timer is carried at D2D, if receive the data sending UE from D2D, then restart described D2D and carry release timer, and when next subframe starts, carrying release timer operation duration to described D2D increases by a step value.

A kind of base station discharging entity that the embodiment of the present invention provides, comprising:

First judge module, for judging that at least one D2D carries the need of release;

First notification module, for after determining to need to discharge at least one D2D carrying, notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Preferably, described first judge module specifically for:

According to the information that D2D transmission UE reports, judge that at least one D2D carries the need of release.

A kind of UE discharging entity that the embodiment of the present invention provides, described UE are that the D2D carrying out D2D communication sends UE, and this UE comprises:

Second judge module, for judging that at least one D2D carries the need of release;

Second notification module, for after determining that at least one D2D carries needs release, notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

The certain layer of embodiment of the present invention D2D UE, after determining at least one D2D carrying needs release that described certain layer is supported, carries corresponding entity in described certain layer release with described D2D.Because the certain layer of D2DUE is after determining at least one D2D carrying needs release that described certain layer is supported, corresponding entity is carried with described D2D in described certain layer release, thus achieve in D2D scene, discharge for PDCP/RLC entity, further increase systematic function.

Accompanying drawing explanation

Fig. 1 is the data flow diagram of communications of user equipment in background technology cellular network;

Fig. 2 is the data flow diagram of the direct-connected communication of background technology subscriber equipment;

Fig. 3 is the method flow schematic diagram that the embodiment of the present invention one discharges entity;

Fig. 4 is the method flow schematic diagram that the embodiment of the present invention two supplementary is notified by high level;

Fig. 5 is the method flow schematic diagram that the embodiment of the present invention three supplementary is notified by high level;

Fig. 6 is the method flow schematic diagram that the embodiment of the present invention four supplementary is notified by high level;

Fig. 7 is that the embodiment of the present invention five supplementary is by the method flow schematic diagram sending UE notice;

Fig. 8 is that the embodiment of the present invention six supplementary is by the method flow schematic diagram sending UE notice;

Fig. 9 is that the embodiment of the present invention seven supplementary is by the method flow schematic diagram sending UE notice;

Figure 10 is the method flow schematic diagram that the embodiment of the present invention eight supplementary is notified by base station;

Figure 11 is the method flow schematic diagram that the embodiment of the present invention nine supplementary is notified by base station;

Figure 12 is the method flow schematic diagram that the embodiment of the present invention ten supplementary is notified by base station;

Figure 13 is the method flow schematic diagram that embodiment of the present invention hendecyl discharges in timer;

Figure 14 is the method flow schematic diagram that embodiment of the present invention dodecyl discharges in timer;

Figure 15 is the method flow schematic diagram that the embodiment of the present invention 13 discharges entity;

Figure 16 is the method flow schematic diagram that the embodiment of the present invention 14 discharges entity;

Figure 17 is the structural representation of the embodiment of the present invention 15 D2D UE;

Figure 18 is the structural representation that the embodiment of the present invention 16 D2D sends UE;

Figure 19 is the structural representation at embodiment of the present invention heptadecyl station;

Figure 20 is the structural representation of the embodiment of the present invention 18 D2D UE;

Figure 21 is the structural representation that the embodiment of the present invention 19 D2D sends UE;

Figure 22 is the structural representation of the embodiment of the present invention 20 base station.

Embodiment

Wherein, need the D2D carrying discharging entity can be the D2D carrying of the end of transmission, also can be that the D2D causing needs discharge due to other reasons in transmitting procedure carries, such as carry reasons such as being preempted.

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

As shown in Figure 3, the embodiment of the present invention one discharges the method for entity, comprising:

The certain layer of step 301, D2D UE judges that at least one D2D that described certain layer is supported carries the need of release;

The certain layer of step 302, described D2D UE, after determining at least one D2D carrying needs release that described certain layer is supported, carries corresponding entity in described certain layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

The certain layer of D2D UE likely can carry by corresponding multiple D2D, in all entities that certain layer is corresponding, and the carrying that different entities can be corresponding different.Such as, if certain layer is PDCP layer, this layer has two D2D carryings, and so each D2D carrying can a corresponding PDCP entity.For another example, if certain layer is rlc layer, this layer has two D2D carryings, and so each D2D carrying can a corresponding RLC entity.

When discharging, because not all D2D carrying all can discharge simultaneously, the D2D of release is needed to carry corresponding entity so D2D UE only discharges.

In force, the certain layer of described D2D UE judges that the mode that at least one D2D of described certain layer support carries the need of release has a lot, enumerates several below.

The certain layer of judgment mode one, described D2D UE judges whether to receive and represents that D2D carries the supplementary needing release, after receiving the supplementary representing the release of D2D carrying needs, determines that at least one D2D carrying of described certain layer support needs release.

For judgment mode one, there is the mode of multiple transmission supplementary, be described respectively below.

Send the high level transmission supplementary of supplementary mode one, D2D UE.

Concrete, the high level of described D2D UE, after needs release D2D carrying, sends described supplementary to the PDCP layer of described D2D UE and/or rlc layer;

Wherein, the high level of the embodiment of the present invention can be operation layer or ProSe management level or with operation layer, ProSe management level other protocol layer functionally similar.

In force, if described D2D UE is D2D send UE, described supplementary comprises the LCID (Logical Channel Identity, Logic Channel Identifier) of D2D carrying;

Preferably, described supplementary can also comprise Group ID (group mark) or broadcast ID (broadcast identification) or unicast ID (clean culture mark).

If described D2D UE is described D2D send UE, described supplementary comprises the LCID of D2D carrying;

Further, described supplementary also comprises group mark Group ID or broadcast identification broadcastID or clean culture mark unicast ID.

In transmission supplementary mode one, if the high level of described D2D UE only sends described supplementary to the PDCP layer of described D2D UE, then the PDCP layer of D2D UE is after receiving described supplementary, the rlc layer to described D2D UE is also needed to send described supplementary, the rlc layer of described like this D2D UE is after receiving supplementary, just know the D2D carrying of corresponding needs release, then discharge the entity that described rlc layer is corresponding.Detailed process can see Fig. 4.

As shown in Figure 4, the method that the embodiment of the present invention two supplementary is notified by high level comprises the following steps:

The high level of step 401, D2D UE determines that certain needs release D2D carrying, then what the supplementary of expression D2D carrying needs release is informed to D2D UE carries corresponding PDCP layer with needing the D2D discharged.

It is mutual that step 402, PDCP layer and rlc layer carry out interlayer, interworking entity release information.

The PDCP entity of the PDCP layer release correspondence of step 403, D2D UE.

The rlc layer of step 404, D2D UE discharges the RLC entity corresponding with the entity that PDCP discharges.

Wherein, step 403 and step 404 do not have inevitable sequencing in time.

In transmission supplementary mode one, if the high level of described D2D UE sends described supplementary to the rlc layer of described D2D UE, then the rlc layer of D2D UE is after receiving described supplementary, the PDCP layer to described D2D UE is also needed to send described supplementary, the PDCP layer of described like this D2D UE is after receiving supplementary, just know the D2D carrying of corresponding needs release, then discharge the entity of described PDCP layer correspondence.Detailed process can see Fig. 5.

As shown in Figure 5, the method that the embodiment of the present invention three supplementary is notified by high level comprises the following steps:

The high level of step 501, D2D UE determines that certain needs release D2D carrying, then what the supplementary of expression D2D carrying needs release is informed to D2D UE carries corresponding rlc layer with needing the D2D discharged.

It is mutual that step 502, rlc layer and PDCP layer carry out interlayer, interworking entity release information.

The RLC entity of the rlc layer release correspondence of step 503, D2D UE.

The PDCP entity that the PDCP layer of step 504, D2D UE is corresponding with the entity that rlc layer discharges.

Wherein, step 503 and step 504 do not have inevitable sequencing in time.

In transmission supplementary mode one, if the high level of described D2D UE sends described supplementary to the PDCP layer of described D2D UE and rlc layer, the PDCP layer of described D2D UE receives the described supplementary from described high level, and the rlc layer of described D2D UE receives the described supplementary from described high level.Detailed process can see Fig. 6.

As shown in Figure 6, the method that the embodiment of the present invention four supplementary is notified by high level comprises the following steps:

The high level of step 601a/601b, D2D UE determines that certain needs release D2D carrying, then will represent that D2D carrying needs the supplementary of release to inform to PDCP layer and the rlc layer of D2D UE respectively.

The RLC entity of the rlc layer release correspondence of step 602, D2D UE.

The PDCP entity of the PDCP layer release correspondence of step 603, D2D UE.

Wherein, step 601a and 601b does not have inevitable sequencing in time, is preferably high-rise and sends supplementary to PDCP layer and rlc layer simultaneously.Step 602 and step 603 do not have inevitable sequencing in time.

In D2D transmission, D2D UE is divided into D2D to send UE and D2D reception UE.UE and D2D reception UE is sent for transmission supplementary mode one, D2D all applicable.

For the transmission supplementary mode two introduced below and transmission supplementary mode three, be only applicable to D2D and receive UE.

Send supplementary mode two, D2D transmission UE sends supplementary.

Concrete, described D2D UE receives the signaling comprising supplementary that D2D sends UE transmission, the supplementary of carrying in signaling is indicated to PDCP layer and/or the rlc layer of described D2D UE;

If the PDCP layer that described D2D receives UE receives the described supplementary that D2D sends UE transmission, the rlc layer that described supplementary receives UE to described D2D sends by the PDCP layer that described D2D receives UE;

If the rlc layer that described D2D receives UE receives the described supplementary that D2D sends UE transmission, the PDCP layer that described supplementary receives UE to described D2D sends by the rlc layer that described D2D receives UE.

Wherein, the D2D carrying out D2D communication sends UE and judges that D2D carrying is the need of release, and after determining to need release D2D carrying, notify that the D2D reception UE in D2D carrying discharges entity corresponding to certain layer, namely receive UE transmission to D2D and represent that D2D carries the supplementary needing release.

In force, supplementary comprises the LCID of D2D carrying.

If D2D receives UE can identify that D2D sends UE, then can not carry the mark that D2D sends UE in supplementary; Otherwise, need to carry the mark that D2D sends UE.

Preferably, described supplementary can also comprise Group ID or broadcast ID or unicastID.

If D2D sends UE by MAC (Medium Access Control, medium education) message sends supplementary, then D2D receive the PDCP layer of UE and/or rlc layer by and the interlayer of MAC layer receive D2D alternately and send the described supplementary that UE sends;

If D2D sends UE send supplementary by physical layer message, then D2D receive the PDCP layer of UE and/or rlc layer by and the interlayer of physical layer receive D2D alternately and send the described supplementary that UE sends;

If D2D sends UE by RRC (Radio Resource Control, radio resource control information) send supplementary, then D2D receive the PDCP layer of UE and/or rlc layer by and the interlayer of rrc layer receive D2D alternately and send the described supplementary that UE sends;

In transmission supplementary mode two, if the PDCP layer that described D2D receives UE receives the described supplementary that D2D sends UE transmission, then D2D receives the PDCP layer of UE after receiving described supplementary, the rlc layer receiving UE to described D2D is also needed to send described supplementary, described like this D2D receives the rlc layer of UE after receiving supplementary, just know the D2D carrying of corresponding needs release, then discharge the entity that described rlc layer is corresponding.Detailed process can see Fig. 7.

As shown in Figure 7, the method that the embodiment of the present invention five supplementary sends UE notice by D2D comprises the following steps:

Step 701, D2D transmission UE determines that certain needs release D2D to carry, then what the supplementary of expression D2D carrying needs release is informed to D2D reception UE carries corresponding PDCP layer with the D2D that needs discharge.

It is mutual that step 702, PDCP layer and rlc layer carry out interlayer, interworking entity release information.

Step 703, D2D receive the PDCP entity of the PDCP layer release correspondence of UE.

The rlc layer that step 704, D2D receive UE discharges the RLC entity corresponding with the entity that PDCP discharges.

Wherein, step 703 and step 704 do not have inevitable sequencing in time.

In transmission supplementary mode two, if the rlc layer that described D2D receives UE receives the described supplementary that D2D sends UE transmission, then D2D receives the rlc layer of UE after receiving described supplementary, the PDCP layer receiving UE to described D2D is also needed to send described supplementary, described like this D2D receives the PDCP layer of UE after receiving supplementary, just know the D2D carrying of corresponding needs release, then discharge the entity of described PDCP layer correspondence.Detailed process can see Fig. 8.

As shown in Figure 8, the method that the embodiment of the present invention five supplementary sends UE notice by D2D comprises the following steps:

Step 801, D2D transmission UE determines that certain needs release D2D to carry, then what the supplementary of expression D2D carrying needs release is informed to D2D reception UE carries corresponding rlc layer with the D2D that needs discharge.

It is mutual that step 802, rlc layer and PDCP layer carry out interlayer, interworking entity release information.

Step 803, D2D receive the RLC entity of the rlc layer release correspondence of UE.

Step 804, D2D receive the PDCP layer of the UE PDCP entity corresponding with the entity that rlc layer discharges.

Wherein, step 803 and step 804 do not have inevitable sequencing in time.

In transmission supplementary mode two, if described D2D sends UE and receives the PDCP layer of UE to described D2D and rlc layer sends described supplementary, the PDCP layer that described D2D receives UE receives the described supplementary sending UE from D2D, and the rlc layer of described D2D reception UE receives the described supplementary sending UE from D2D.Detailed process can see Fig. 9.

As shown in Figure 9, the method that the embodiment of the present invention four supplementary is notified by high level comprises the following steps:

Step 901a/901b, D2D send UE and determine that certain needs release D2D to carry, then will represent that D2D carrying needs the supplementary of release to inform to PDCP layer and the rlc layer of D2D reception UE respectively.

Step 902, D2D receive the RLC entity of the rlc layer release correspondence of UE.

Step 903, D2D receive the PDCP entity of the PDCP layer release correspondence of UE.

Wherein, step 901a and 901b does not have inevitable sequencing in time, is preferably high-rise and sends supplementary to PDCP layer and rlc layer simultaneously.Step 902 and step 903 do not have inevitable sequencing in time.

Send supplementary mode three, base station sends supplementary.

Concrete, described D2D UE receives the signaling comprising supplementary that base station sends, and the supplementary of carrying in signaling is indicated to PDCP layer and/or the rlc layer of described D2D UE;

If the described supplementary that the PDCP layer reception base station that described D2D receives UE sends, the rlc layer that described supplementary receives UE to described D2D sends by the PDCP layer that described D2D receives UE;

If the described supplementary that the rlc layer reception base station that described D2D receives UE sends, the PDCP layer that described supplementary receives UE to described D2D sends by the rlc layer that described D2D receives UE.

Wherein, base station judges that D2D carrying is the need of release; After determining to need release D2D carrying, the D2D in notice D2D carrying receives UE and discharges entity corresponding to certain layer.

Preferably, the information that described base station reports according to the D2D transmission UE in D2D carrying, judges that D2D carrying is the need of release.

In force, supplementary comprises the LCID of D2D carrying.

If base station sends supplementary by MAC message, then D2D receives the PDCP layer of UE and/or rlc layer and receives by MAC layer the described supplementary that base station sends;

If base station sends supplementary by physical layer message, then D2D receives the PDCP layer of UE and/or rlc layer and receives by physical layer the described supplementary that base station sends;

If base station is by sending supplementary by RRC (Radio Resource Control, radio resource control information), then D2D receive the PDCP layer of UE and/or rlc layer by and the interlayer of rrc layer receive the described supplementary that base station sends alternately;

In transmission supplementary mode three, if the described supplementary that the PDCP layer reception base station that described D2D receives UE sends, then D2D receives the PDCP layer of UE after receiving described supplementary, the rlc layer receiving UE to described D2D is also needed to send described supplementary, described like this D2D receives the rlc layer of UE after receiving supplementary, just know the D2D carrying of corresponding needs release, then discharge the entity that described rlc layer is corresponding.Detailed process can see Figure 10.

As shown in Figure 10, the method that the embodiment of the present invention five supplementary is notified by base station comprises the following steps:

Step 1001, base station determine that certain needs release D2D to carry, then what the supplementary of expression D2D carrying needs release is informed to D2D reception UE carries corresponding PDCP layer with the D2D that needs discharge.

It is mutual that step 1002, PDCP layer and rlc layer carry out interlayer, interworking entity release information.

Step 1003, D2D receive the PDCP entity of the PDCP layer release correspondence of UE.

The rlc layer that step 1004, D2D receive UE discharges the RLC entity corresponding with the entity that PDCP discharges.

Wherein, step 1003 and step 1004 do not have inevitable sequencing in time.

In transmission supplementary mode three, if the described supplementary that the rlc layer reception base station that described D2D receives UE sends, then D2D receives the rlc layer of UE after receiving described supplementary, the PDCP layer receiving UE to described D2D is also needed to send described supplementary, described like this D2D receives the PDCP layer of UE after receiving supplementary, just know the D2D carrying of corresponding needs release, then discharge the entity of described PDCP layer correspondence.Detailed process can see Figure 11.

As shown in figure 11, the method that the embodiment of the present invention five supplementary is notified by base station comprises the following steps:

Step 1101, base station determine that certain needs release D2D to carry, then what the supplementary of expression D2D carrying needs release is informed to D2D reception UE carries corresponding rlc layer with the D2D that needs discharge.

It is mutual that step 1102, rlc layer and PDCP layer carry out interlayer, interworking entity release information.

Step 1103, D2D receive the RLC entity of the rlc layer release correspondence of UE.

Step 1104, D2D receive the PDCP layer of the UE PDCP entity corresponding with the entity that rlc layer discharges.

Wherein, step 1103 and step 1104 do not have inevitable sequencing in time.

In transmission supplementary mode three, if described base station receives the PDCP layer of UE to described D2D and rlc layer sends described supplementary, described D2D receives the described supplementary of PDCP layer reception from base station of UE, and described D2D receives the described supplementary of rlc layer reception from base station of UE.Detailed process can see Figure 12.

As shown in figure 12, the method that the embodiment of the present invention four supplementary is notified by high level comprises the following steps:

Step 1201a/1201b, base station determine that certain needs release D2D carrying, then will represent that the supplementary of D2D carrying needs release informs to PDCP layer and the rlc layer that D2D receives UE respectively.

Step 1202, D2D receive the RLC entity of the rlc layer release correspondence of UE.

Step 1203, D2D receive the PDCP entity of the PDCP layer release correspondence of UE.

Wherein, step 1201a and 1201b does not have inevitable sequencing in time, is preferably high-rise and sends supplementary to PDCP layer and rlc layer simultaneously.Step 1202 and step 1203 do not have inevitable sequencing in time.

The certain layer of judgment mode two, described D2D UE judges that whether the D2D carrying release timer that described certain layer is supported is overtime, the D2D supported in described certain layer carries release timer whether after time-out, determines that at least one D2D carrying of described certain layer support needs release.

In D2D transmission, D2D UE is divided into D2D to send UE and D2D reception UE.UE and D2D reception UE is sent for judgment mode two, D2D all applicable.

In force, the PDCP layer of described D2D UE can safeguard that the D2D of a PDCP layer correspondence carries release timer; And/or

The rlc layer of described D2D UE can safeguard the D2D carrying release timer that a rlc layer is corresponding.

The PDCP layer of described D2D UE is when safeguarding that D2D carries release timer, the non-time-out period of release timer is carried at D2D, if receive the data sending UE from D2D, then restart described D2D and carry release timer, and when next subframe starts, carrying release timer operation duration to described D2D increases by a step value;

The rlc layer of described D2D UE is when safeguarding that D2D carries release timer, the non-time-out period of release timer is carried at D2D, if receive the data sending UE from D2D, then restart described D2D and carry release timer, and when next subframe starts, carrying release timer operation duration to described D2D increases by a step value.

Here step value can set as required, and such as 1.

If the PDCP layer of described D2D UE safeguards that the D2D of a PDCP layer correspondence carries release timer, then the PDCP layer of described D2D UE judges the D2D corresponding with described PDCP layer whether carry release timer overtime.Further, the PDCP layer of described D2D UE, after the judgement D2D corresponding with described PDCP layer carries release timer time-out, notifies the rlc layer release entity of described D2D UE.Specifically can see Figure 13.

If the rlc layer of described D2D UE safeguards that the D2D that rlc layer is corresponding carries release timer, then whether the rlc layer of described D2D UE to judge that the D2D corresponding with described rlc layer carries release timer overtime.Further, the rlc layer of described D2D UE, after the judgement D2D corresponding with described rlc layer carries release timer time-out, notifies the PDCP layer release entity of described D2D UE.Specifically can see Figure 14.

If the PDCP layer of described D2D UE safeguards that the D2D of a PDCP layer correspondence carries release timer, and the rlc layer of described D2D UE safeguards the D2D carrying release timer that a rlc layer is corresponding, when the timer times out, and the entity that needs release is corresponding.

As shown in figure 13, the method for the embodiment of the present invention 11 timer release comprises the following steps:

In the subframe T moment, the PDCP layer of step 1301, D2D UE judges whether PDCP entity receives packet, if so, then perform step 1302; Otherwise, perform step 1305.

The PDCP layer of step 1302, D2D UE is restarted D2D and is carried release timer.

The PDCP layer of step 1303, D2D UE judges whether subframe T equals T+1; If so, then step 1304 is performed; Otherwise return step 1303.

The PDCP layer of step 1304, D2D UE carries release timer to D2D and runs duration+1, and returns step 1301.That is, the PDCP layer of D2D UE is when next subframe starts, and carries release timer run duration+1 to D2D.

The PDCP layer of step 1305, D2D UE judges that whether D2D carrying release timer is overtime, if so, then performs step 1306; Otherwise, perform step 1303.

The PDCP entity of the PDCP layer release correspondence of step 1306, D2D UE.

The RLC entity of the PDCP layer notice rlc layer release correspondence of step 1307, D2D UE.

Wherein, step 1306 and step 1307 do not have inevitable sequencing in time.

As shown in figure 14, the method for the embodiment of the present invention 12 timer release comprises the following steps:

In the subframe T moment, the PDCP layer of step 1401, D2D UE judges whether RLC entity receives packet, if so, then perform step 1402; Otherwise, perform step 1405.

The rlc layer of step 1402, D2D UE is restarted D2D and is carried release timer.

The rlc layer of step 1403, D2D UE judges whether subframe T equals T+1; If so, then step 1404 is performed; Otherwise return step 1403.

The rlc layer of step 1404, D2D UE carries release timer to D2D and runs duration+1, and returns step 1401.That is, the rlc layer of D2D UE is when next subframe starts, and carries release timer run duration+1 to D2D.

The rlc layer of step 1405, D2D UE judges that whether D2D carrying release timer is overtime, if so, then performs step 1406; Otherwise, perform step 1403.

The RLC entity of the rlc layer release correspondence of step 1406, D2D UE.

The PDCP entity of the rlc layer notice PDCP layer release correspondence of step 1407, D2D UE.

Wherein, step 1406 and step 1407 do not have inevitable sequencing in time.

Because PDCP/RLC entity exists corresponding relation, as long as therefore one of them entity release, another one entity also discharges so to need interlayer to notify alternately, needs stop or discharging release timer corresponding to this entity simultaneously.

If so only have maintenance D2D to carry release timer, then need to carry out interlayer and notify another one entity alternately.If PDCP layer and rlc layer safeguard that D2D carries release timer separately, then do not need to carry out interlayer mutual.

As shown in figure 15, the method for the embodiment of the present invention 13 release entity comprises the following steps:

Step 1501, base station judge that at least one D2D carries the need of release;

Step 1502, described base station are after determining to need to discharge at least one D2D carrying, and notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, described base station judges that at least one D2D carries the need of release, comprising:

Such as when D2D to send at the end of UE certain D2D carries the LCID of D2D carrying reporting this will terminate to transmit by RRC signaling or MAC signaling or physical layer signaling to base station.

In force, supplementary comprises the LCID of D2D carrying.

As shown in figure 16, the method for the embodiment of the present invention 14 release entity comprises the following steps:

Step 1601, carry out D2D communication D2D send UE judge at least one D2D carry the need of release;

Step 1602, described D2D send UE after determining that at least one D2D carries needs release, and notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Based on same inventive concept, the structure of plurality of devices is additionally provided in the embodiment of the present invention, the principle of dealing with problems due to these equipment is similar to the method that the embodiment of the present invention discharges entity, and therefore the enforcement of these equipment see the enforcement of method, can repeat part and repeat no more.

As shown in figure 17, the D2D UE of the embodiment of the present invention 15 comprises:

Be positioned at certain layer processing module 1701, for judging that at least one D2D that described certain layer is supported carries the need of release;

Be positioned at the release module 1702 of certain layer, for after determining at least one D2D carrying needs release that described certain layer is supported, carry corresponding entity in described certain layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Preferably, described processing module 1701 specifically for:

Preferably, described D2D UE also comprises:

Described processing module specifically for:

Preferably, described D2D UE is that D2D receives UE;

Described processing module 1701 is positioned at PDCP layer and/or the rlc layer of described D2D UE; Described processing module 1701 specifically for:

Preferably, described D2D UE is that D2D receives UE;

The signaling comprising described supplementary of base station transmission is received by other layer of D2D UE;

Preferably, described processing module 1701 specifically for:

By the one in the physical layer of D2D UE, MAC layer and rrc layer, receive the described supplementary that base station sends.

Preferably, described supplementary comprises the LCID of D2D carrying.

Preferably, described processing module 1701 specifically for:

Preferably, described processing module 1701 also for:

As shown in figure 18, the D2D transmission UE of the embodiment of the present invention 16 comprises:

Second judge module 1801, for judging that at least one D2D carries the need of release;

Second notification module 1802, for after determining that at least one D2D carries needs release, notice D2DUE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

As shown in figure 19, the base station of the embodiment of the present invention 17 comprises:

First judge module 1901, for judging that at least one D2D carries the need of release;

First notification module 1902, for after determining to need to discharge at least one D2D carrying, notice D2DUE carries corresponding entity in described specific protocol layer release with described D2D;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Preferably, described first judge module 1901 specifically for:

As shown in figure 20, the D2D UE of the embodiment of the present invention 18 comprises:

Processor 2000, for judging that at least one D2D that described certain layer is supported carries the need of release, after determining at least one D2D carrying needs release that described certain layer is supported, carries corresponding entity in described certain layer release with described D2D;

Transceiver 2010, for receiving and sending data under the control of processor 2000;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Preferably, described processor 2000 specifically for:

Preferably, processor 2000, for after needs release D2D carrying, sends described supplementary to the PDCP layer of described D2D UE and/or rlc layer;

Preferably, described D2D UE is that D2D receives UE;

Described processor 2000 specifically for:

Preferably, described D2D UE is that D2D receives UE;

Described processor 2000 specifically for:

Preferably, described supplementary comprises the LCID of D2D carrying.

Preferably, described processor 2000 specifically for:

Preferably, described processor 2000 also for:

Wherein, in fig. 20, bus architecture can comprise interconnected bus and the bridge of any amount, and the various electrical chains of the memory that the one or more processor specifically represented by processor 2000 and memory 2020 represent are connected together.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus architecture, and these are all known in the field, therefore, are no longer described further it herein.Bus interface provides interface.Transceiver 2010 can be multiple element, namely comprises transmitter and receiver, is provided for the unit communicated with other devices various over a transmission medium.For different subscriber equipmenies, user interface 2030 can also be can external in connect the interface needing equipment, the equipment of connection includes but not limited to keypad, display, loud speaker, microphone, joystick etc.

Processor 2000 is in charge of bus architecture and common process, and memory 2020 can the data that use when executable operations of storage of processor 2000.

As shown in figure 21, the D2D transmission UE of the embodiment of the present invention 19 comprises:

Processor 2100, for judging that at least one D2D carries the need of release; After determining that at least one D2D carries needs release, notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Transceiver 2110, for receiving and sending data under the control of processor 2100;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Wherein, in figure 21, bus architecture can comprise interconnected bus and the bridge of any amount, and the various electrical chains of the memory that the one or more processor specifically represented by processor 2100 and memory 2120 represent are connected together.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus architecture, and these are all known in the field, therefore, are no longer described further it herein.Bus interface provides interface.Transceiver 2110 can be multiple element, namely comprises transmitter and receiver, is provided for the unit communicated with other devices various over a transmission medium.For different subscriber equipmenies, user interface 2130 can also be can external in connect the interface needing equipment, the equipment of connection includes but not limited to keypad, display, loud speaker, microphone, joystick etc.

Processor 2100 is in charge of bus architecture and common process, and memory 2120 can the data that use when executable operations of storage of processor 2100.

As shown in figure 22, the base station of the embodiment of the present invention 20 comprises:

Processor 2200, for judging that at least one D2D carries the need of release; After determining to need to discharge at least one D2D carrying, notice D2D UE carries corresponding entity in described specific protocol layer release with described D2D;

Transceiver 2210, for receiving and sending data under the control of processor 2200;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

Preferably, described processor 2200 specifically for:

Wherein, in fig. 22, bus architecture can comprise interconnected bus and the bridge of any amount, and the various electrical chains of the memory that the one or more processor specifically represented by processor 2200 and memory 2220 represent are connected together.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus architecture, and these are all known in the field, therefore, are no longer described further it herein.Bus interface provides interface.Transceiver 2210 can be multiple element, namely comprises transmitter and receiver, is provided for the unit communicated with other devices various over a transmission medium.Processor 2200 is in charge of bus architecture and common process, and memory 2220 can the data that use when executable operations of storage of processor 2200.

Processor 2200 is in charge of bus architecture and common process, and memory 2220 can the data that use when executable operations of storage of processor 2200.

Foregoing can be found out: because the certain layer of the D2D UE of the embodiment of the present invention is after determining at least one D2D carrying needs release that described certain layer is supported, corresponding entity is carried with described D2D in described certain layer release, thus achieve in D2D scene, discharge for PDCP/RLC entity, further increase systematic function.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. discharge a method for entity, it is characterized in that, the method comprises:

2. the method for claim 1, is characterized in that, the certain layer of described D2D UE judges that at least one D2D that described certain layer is supported carries the need of release, comprising:

3. method as claimed in claim 2, is characterized in that, the certain layer of described D2D UE receives supplementary, comprising:

4. method as claimed in claim 3, is characterized in that, if described D2D UE is described D2D send UE, described supplementary comprises the LCID of D2D carrying;

5. method as claimed in claim 4, is characterized in that, described supplementary also comprises group mark Group ID or broadcast identification broadcast ID or clean culture mark unicast ID.

6. method as claimed in claim 2, is characterized in that, described D2D UE is that D2D receives UE;

The certain layer of described D2D UE receives supplementary, comprising:

7. method as claimed in claim 6, is characterized in that, described in comprise supplementary signaling be one in radio resource control information RRC signaling, media access control MAC signaling and physical layer signaling.

8. method as claimed in claim 2, is characterized in that, described D2D UE is that D2D receives UE;

The certain layer of described D2D UE receives supplementary, comprising:

9. method as claimed in claim 8, is characterized in that, described in comprise supplementary signaling be one in radio resource control information RRC signaling, media access control MAC signaling and physical layer signaling.

10. the method as described in as arbitrary in claim 6 ~ 9, is characterized in that, described supplementary comprises the LCID of D2D carrying.

11. methods as claimed in claim 10, is characterized in that, it is part or all of that described supplementary also comprises that D2D sends in the mark of UE, Group ID, broadcast ID and unicast ID.

12. methods as claimed in claim 2, is characterized in that, the certain layer of described D2D UE judges that whether the D2D carrying release timer that described certain layer is supported is overtime, comprising:

13. methods as claimed in claim 12, it is characterized in that, the method also comprises:

14. methods as described in claim 12 or 13, it is characterized in that, the method also comprises:

15. 1 kinds of methods discharging entity, it is characterized in that, the method comprises:

Base station judges that at least one D2D carries the need of release;

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

16. methods as claimed in claim 15, is characterized in that, described base station judges that at least one D2D carries the need of release, comprising:

17. 1 kinds of methods discharging entity, it is characterized in that, the method comprises:

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

18. 1 kinds of user equipment (UE)s discharging entity, it is characterized in that, described UE is D2D UE, and this UE comprises:

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

19. equipment as claimed in claim 18, is characterized in that, described processing module specifically for:

20. equipment as claimed in claim 19, it is characterized in that, described D2D UE also comprises:

Described processing module specifically for:

21. equipment as claimed in claim 20, is characterized in that, if described D2D UE is described D2D send UE, described supplementary comprises the LCID of D2D carrying;

22. equipment as claimed in claim 21, is characterized in that, described supplementary also comprises group mark Group ID or broadcast identification broadcast ID or clean culture mark unicast ID.

23. equipment as claimed in claim 19, is characterized in that, described D2D UE is that D2D receives UE;

24. equipment as claimed in claim 23, is characterized in that, described in comprise supplementary signaling be one in radio resource control information RRC signaling, media access control MAC signaling and physical layer signaling.

25. equipment as claimed in claim 19, is characterized in that, described D2D UE is that D2D receives UE;

26. equipment as claimed in claim 25, is characterized in that, described in comprise supplementary signaling be one in radio resource control information RRC signaling, media access control MAC signaling and physical layer signaling.

27. as arbitrary in claim 23 ~ 26 as described in equipment, it is characterized in that, described supplementary comprise D2D carrying LCID.

28. equipment as claimed in claim 27, is characterized in that, it is part or all of that described supplementary also comprises that D2D sends in the mark of UE, Group ID, broadcast ID and unicast ID.

29. equipment as claimed in claim 19, is characterized in that, described processing module specifically for:

30. equipment as claimed in claim 29, is characterized in that, described processing module also for:

31. equipment as described in claim 29 or 30, is characterized in that, described processing module also for:

32. 1 kinds of base stations discharging entity, it is characterized in that, this base station comprises:

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.

33. base stations as claimed in claim 32, is characterized in that, described first judge module specifically for:

34. 1 kinds of UE discharging entity, is characterized in that, described UE is that the D2D carrying out D2D communication sends UE, and this UE comprises:

Wherein, the certain layer of described D2D UE is PDCP layer or rlc layer.