CN106454806B

CN106454806B - A kind of method and apparatus carried out data transmission

Info

Publication number: CN106454806B
Application number: CN201510491101.8A
Authority: CN
Inventors: 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: 2015-08-11
Filing date: 2015-08-11
Publication date: 2019-07-19
Anticipated expiration: 2035-08-11
Also published as: CN106454806A; WO2017024909A1

Abstract

The present embodiments relate to wireless communication technology fields, in particular to a kind of method and apparatus carried out data transmission, to solve the problems, such as that the mark of PC5 interface existing in the prior art can not be applied to the presence mark conflict of UE to Network Relay scene.Relay of embodiment of the present invention UE is identified using first layer 2 to be carried out data transmission with the Remote UE identified using the second layer 2.Due to including the specific identifier of the identical Relay UE by network side distribution in the mark of first layer 2 and the mark of the second layer 2, and the second layer 2 mark in further include the Remote UE distributed by Relay UE specific identifier, so that the mark of PC5 interface is unique in a certain range, the mark of PC5 interface is avoided to clash in a certain range, to guarantee that the mark of PC5 interface can be applied to UE to Network Relay scene.

Description

A kind of method and apparatus carried out data transmission

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of method and apparatus carried out data transmission.

Background technique

In LTE (Long Term Evolution, long term evolution) system, what is taken is the central controlled mode of network, That is the uplink and downlink data of UE (user equipment is referred to as terminal) are all sent and received under the control of a network.UE and Communication between UE is forwarded and is controlled by network.Direct communication link is not present between UE and UE, UE does not also permit Perhaps upstream data is voluntarily sent, referring to Figure 1A.

D2D (Device-to-Device, device-to-device), i.e. user equipment lead directly to technology, refer to that neighbouring user sets It is standby not need in short range in such a way that direct connected link carries out data transmission through central node (i.e. base station) It is forwarded, as shown in Figure 1B.

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

D2D discovery: UE confirms another UE using E-UTRA in its vicinity.For example, the clothes can be used in D2D UE Business comes the taxi of finding nearby, the friend of searching in its vicinity etc.；

D2D communication: UE close to each other will pass through network by directly establishing link between two UE originally in this way The communication link of transmission is converted into local direct communication link, saves a large amount of bandwidth and network efficiency；Or two phases Mutually close UE can use direct point-to-point data link to obtain the cheap communication service of stable high speed.It is general close to communication for service It is to be carried out under network controls or auxiliary, eNB (evolution base station) possibly even can be the UE carried out close to communication for service Dynamic distribution resource.

D2D communication at present includes two kinds of Linktypes:

D2D link: refer to the link directly communicated between equipment and equipment；

D2N link: the link communicated between equipment and network node.

Participating in D2D discovery/communication UE includes two kinds of roles:

D2D sends UE: i.e. transmission D2D discovery/communication information UE；

D2D receives UE: i.e. reception D2D sends discovery/communication information UE that UE is sent.

The interface directly interacted between UE and UE, referred to as PC5 interface are introduced in 3GPP Rel-12.

On the basis of D2D discovery and the communication technology, UE can carry out data with network by way of Relay (relaying) Transmission.

UE is known as UE-to-Network Relay in such a way that Relay (relaying) UE is communicated with network, and (terminal arrives Network trunk), as shown in Figure 1 C.UE2 outside the network coverage with network in order to be communicated, and using UE1 as Relay node, be led to Cross the uplink and downlink signals that UE1 forwards oneself.Wherein, the communication between UE1 and UE2 is communicated by D2D and is realized, between UE1 and network It is realized by cellular communication.

Relay UE: the Relay UE of service is provided for other UE.

Remote (distal end) UE: the UE outside network coverage, needs to realize by Relay node and inter-net communication UE.

UE is known as UE-to-UE Relay in such a way that Relay UE find/communicate with target UE, and (terminal is to eventually End relaying), as shown in figure iD.UE2 in order to be communicated with the UE3 not in oneself direct communications range, can by UE1 come The information of oneself is forwarded, wherein UE1 and UE2, is all to realize that data are transmitted by D2D communication between UE1 and UE3.

3GPP Rel-12 has been realized in the one-to-many communication of PC5 interface at present, and cardinal principle is to send UE in group to lead to The source address (SRC) crossed in data packet MAC subheader identifies oneself；UE is received in group after receiving data packet, will be received first To data packet MAC subheader in destination address (DST) combine with physical layer channel scrambling code and to determine a group identification information, then sentence Whether this group of identification information that break be identical as the group mark (ProSe Layer-2Group ID) where oneself, if identical, really Recognize reception, otherwise abandons.

In the scene of UE to Network Relay, One-to-one communication mould is used between Relay UE and Remote UE Formula, and using the mark of PC5 interface as source and destination address, currently in order to avoid UE mark too long, it is not unique using the whole world Mark will appear the case where mark of PC5 interface conflict in this way, so that the mark of current PC5 interface can not be applied to UE To Network Relay scene.

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus carried out data transmission, with to avoid existing in the prior art There is the case where mark conflicts when the mark of PC5 interface is applied to UE to Network Relay scene.

A kind of method carried out data transmission provided in an embodiment of the present invention, this method comprises:

Link terminal Relay UE determines that first layer 2 identifies；

The Relay UE using the first layer 2 identify with the distance terminal Remote UE that is identified using the second layer 2 into The transmission of row data；

It wherein, include identical first by network side distribution in the mark of first layer 2 and the second layer 2 mark Minute mark is known, and further includes the second part mark distributed by Relay UE in the mark of the second layer 2, and first part is identified as The specific identifier of Relay UE, second part are identified as the specific identifier of Remote UE.

Optionally, the Relay UE determines that first layer 2 identifies, comprising:

The Relay UE requests specific identifier to network side, and the mark of layer 2 of network side distribution is marked as first layer 2 Know；Or

The Relay UE requests specific identifier to network side, and according to the second part of pre-configuration mark and network side point The first part's identifier combination matched is identified at first layer 2；Or

The Relay UE to network side request specific identifier, and by the Relay UE distribution second part mark with First part's identifier combination of network side distribution is identified at first layer 2.

Optionally, the Relay UE using the first layer 2 identify with the Remote UE that is identified using the second layer 2 into Before the transmission of row data, further includes:

The Relay UE broadcast first layer 2 identifies, to notify the specific identifier of Relay UE described in Remote UE.

Optionally, the Relay UE, which is also broadcasted, is used to indicate what first part's mark described in the mark of first layer 2 occupied The information of bit number.

The Relay UE distributes second part after the One-to-one communication request for receiving Remote UE for Remote UE Mark.

Optionally, the Relay UE is that at least one Remote UE distributes second part mark, comprising:

It is that Remote UE distributes second part mark that the Relay UE, which establishes message by One-to-one communication,；

Wherein, the active layer 2 in the pair of connection setup message is identified as the first layer 2 and identifies, and target zone 2 identifies For the mark of active layer 2 used in a pair of communication request.

Optionally, the Relay UE is that at least one Remote UE distributes second part mark, further includes:

If including the information of non-layer 2 mark in a pair of communication request, the Relay UE is by the pair of one 2 identification information of non-layer for identifying the Remote UE for including in communication request is placed in a pair of connection setup and disappears In breath.

If the active layer 2 in the One-to-one communication request message that difference Remote UE is sent identifies identical, the Relay It is that multiple Remote UE distribute second part mark that UE, which establishes message by One-to-one communication,.

Optionally, other Relay UE of the first part mark and same cell and neighboring community of the Relay UE First part identify it is different；Or

The first of other Relay UE of first part's mark of the Relay UE and same base station and adjacent base station Portion identification is different；Or

First part's mark of other Relay UE activated in the Relay UE and network is different.

Optionally, before the Relay UE determines that first layer 2 identifies, further includes:

The Relay UE determines that the mark of network side trigger layer 2 reassigns or determine that meeting layer 2 identifies reassignment condition.

The method that another kind provided in an embodiment of the present invention carries out data transmission, this method comprises:

Remote UE determines that the second layer 2 identifies；

The Remote UE is identified using the second layer 2 and is carried out data biography with the Relay UE identified using first layer 2 It is defeated；

Optionally, before the Remote UE determines that the second layer 2 identifies, further includes:

The Remote UE is identified by the first layer 2 of Relay UE broadcast, determines the first of the Relay UE Portion identification.

Optionally, the Remote UE being used to indicate the described in the mark of first layer 2 by Relay UE broadcast The information for the bit number that a part mark occupies determines first part's mark of the Relay UE.

The Remote UE sends One-to-one communication request to Relay UE, so that the Relay UE is described Remote UE distributes second part mark；

Wherein, the active layer 2 that a pair of communication request uses is identified as the mark of third layer 2, and destination address is described the One layer of 2 mark, the mark of third layer 2 include that identical first part's mark and second part mark, institute are identified with first layer 2 Second part is stated to be identified as fixed value or distributed by the Remote UE.

Optionally, the Remote UE is identified to Relay UE by third layer 2 and is sent One-to-one communication request, is also wrapped It includes:

The Remote UE will be used to identify that 2 identification information of non-layer of the Remote UE is placed in a pair of communication In request.

The Remote UE establishes message according to the One-to-one communication from the Relay UE received, determine described in Relay UE is the second part mark of Remote UE distribution.

The Remote UE determination needs to carry out Relay UE gravity treatment.

A kind of Relay UE carried out data transmission provided in an embodiment of the present invention, the Relay UE include:

First determining module, for determining that first layer 2 identifies；

First processing module is carried out for being identified using the first layer 2 with the Remote UE identified using the second layer 2 Data transmission；

Optionally, first determining module is specifically used for:

Specific identifier is requested to network side, and the mark of layer 2 of network side distribution is identified as first layer 2；Or

Specific identifier is requested to network side, and according to the first part of the second part of pre-configuration mark and network side distribution Identifier combination is identified at first layer 2；Or

Specific identifier is requested to network side, and the second part mark of Relay UE distribution is distributed with network side First part's identifier combination is identified at first layer 2.

Optionally, the first processing module is also used to:

It is identified before carrying out data transmission with the Remote UE identified using the second layer 2, is being received using the first layer 2 To after the One-to-one communication request of Remote UE, second part mark is distributed for Remote UE.

Optionally, the first processing module is specifically used for:

Establishing message by One-to-one communication is that Remote UE distributes second part mark；

Optionally, the first processing module is specifically used for:

If including the information of non-layer 2 mark in a pair of communication request, will be wrapped in a pair of communication request 2 identification information of non-layer for identifying the Remote UE included is placed in the pair of connection setup message.

Optionally, the first processing module is also used to:

If the active layer 2 in the One-to-one communication request message that difference Remote UE is sent identify it is identical, by one-to-one Connection setup message is that multiple Remote UE distribute second part mark.

Optionally, first determining module is also used to:

After determining that the mark of network side trigger layer 2 reassigns or determine that meeting layer 2 identifies reassignment condition, first layer is determined 2 marks.

A kind of Remote UE carried out data transmission provided in an embodiment of the present invention, the Remote UE include:

Second determining module, for determining that the second layer 2 identifies；

Second processing module is counted for being identified using the second layer 2 with the Relay UE identified using first layer 2 According to transmission；

Optionally, the Second processing module is also used to:

One-to-one communication request is sent to Relay UE, so that the Relay UE is Remote UE distribution second Portion identification；

Optionally, the Second processing module is also used to:

It will be used to identify that 2 identification information of non-layer of the Remote UE is placed in a pair of communication request.

Optionally, the Second processing module is also used to:

Message is established according to the One-to-one communication from the Relay UE received, determines that the Relay UE is The second part mark of Remote UE distribution.

Optionally, second determining module is also used to:

After determination needs to carry out Relay UE gravity treatment, determine that the second layer 2 identifies.

Relay of embodiment of the present invention UE using the first layer 2 identify with the Remote UE that is identified using the second layer 2 into The transmission of row data.Due to including identical in the first layer 2 mark and the second layer 2 mark by the first of network side distribution Portion identification, and further include the second part mark distributed by Relay UE in the mark of the second layer 2, first part is identified as The specific identifier of Relay UE, second part are identified as the specific identifier of Remote UE, so that the mark of PC5 interface is certain It is unique in range, avoid the mark of PC5 interface from clashing in a certain range, to guarantee that the mark of PC5 interface can answer For UE to Network Relay scene；Further improve system performance.

Detailed description of the invention

Figure 1A is the schematic diagram data of user equipment communication in background technique cellular network；

Figure 1B is the schematic diagram data of the direct-connected communication of background technique terminal；

Fig. 1 C is background technique UE-to-Network Relay schematic diagram；

Fig. 1 D is background technique UE-to-UE Relay schematic diagram；

Fig. 2 is the system structure diagram that the embodiment of the present invention carries out data transmission；

Fig. 3 is the structural schematic diagram of the first Relay UE of the embodiment of the present invention；

Fig. 4 is the structural schematic diagram of the first Remote UE of the embodiment of the present invention；

Fig. 5 is the structural schematic diagram of second of Relay UE of the embodiment of the present invention；

Fig. 6 is the structural schematic diagram of second of Remote UE of the embodiment of the present invention；

Fig. 7 method flow schematic diagram that the first carries out data transmission for the embodiment of the present invention；

Fig. 8 is second of the embodiment of the present invention method flow schematic diagram carried out data transmission；

Fig. 9 is the method flow schematic diagram that the embodiment of the present invention one carries out data transmission；

Figure 10 is the method flow schematic diagram that the embodiment of the present invention two carries out data transmission；

Figure 11 is the method flow schematic diagram that the embodiment of the present invention three carries out data transmission.

Specific embodiment

The embodiment of the present invention is described in further detail with reference to the accompanying drawings of the specification.

As shown in Fig. 2, the system that the embodiment of the present invention carries out data transmission includes: Relay UE 10 and Remote UE 20。

Relay UE 10 is identified using the first layer 2 and is identified with using the second layer 2 for determining that first layer 2 is identified Remote UE carry out data transmission；

Remote UE 20 is identified using the second layer 2 and is identified with using first layer 2 for determining that the second layer 2 is identified Relay UE carry out data transmission；

The mark of first layer 2 of Relay of embodiment of the present invention UE includes that two parts identify, and first part is identified as network side The specific identifier of the Relay UE of distribution, second part be identified as network side distribution or preset or Relay UE be from Oneself distributes.

Specifically, the Relay UE requests specific identifier to network side, and by the mark of layer 2 of network side distribution as the One layer of 2 mark；Or

The Relay UE requests specific identifier to network side, and according to the second part of pre-configuration mark and network side point The first part's identifier combination matched is identified at first layer 2, and pre-configuration here can provide in the protocol；Or

The mark of the second layer 2 of Remote of embodiment of the present invention UE includes that two parts identify, and first part is identified as network side The specific identifier of the Relay UE of distribution, second part are identified as the specific identifier of Remote UE.Wherein the of Remote UE First part's mark in two layer of 2 mark identifies phase with the first part in the mark of first layer 2 of the Relay UE transmitted Together.

In an implementation, the length and position of first part's mark in the mark of layer 2 and second part mark can flexibly match It sets, for example can specify that high M identifies for first part, the low position (N-M) is second part mark；It may further specify that high M is Second part mark, the low position (N-M) are first part's mark.

For the unfixed situation of length of first part's mark and second part mark, Relay UE can be Discovery (it was found that) indicate which bit Remote UE will use value identical with Relay UE in message.For example regulation is high M identify for first part, and the low position (N-M) is second part mark, which position indicated with 5bits in discovery message Number is identical as Relay UE, if it is that Remote UE is identical as Relay UE that regulation is high-order, can indicate high with ' 10000 ' 16 identical as Relay UE, and ' 10100 ' high 20 of expressions are identical as Relay UE.

In the case of fixed for the length of first part's mark and second part mark, Remote UE is in initiation and Relay Fixed digit use value identical with Relay UE is defaulted when the One-to-one communication request of UE.

In an implementation, due to the first layer of first part mark and Relay UE in the mark of the second layer 2 of Remote UE First part's mark in 2 marks is identical, so Remote UE needs to know first in the mark of first layer 2 of Relay UE Portion identification.The mode specifically known has very much, for example can notify Remote UE by network side.It is subsequent in order to indicate convenient Embodiment is by taking 16 systems as an example.

The embodiment of the present invention also provides one kind and knows mode:

Relay UE broadcasts first layer 2 and identifies；

Correspondingly, Remote UE is identified according to the first part broadcasted in the first layer 2 for determining Relay UE mark.

It further include other identifier, the other identifier is to fix since the mark of first layer 2 is in addition to including that first part identifies Value is distributed by the Relay UE or is distributed by network side.If in an implementation, first part's mark and other identifier Bit number be not it is fixed, then broadcast when, the Relay UE also need carry is used to indicate first layer 2 mark described in The information for the bit number that first part's mark occupies；

Correspondingly, Remote UE is according to the bit number for being used to indicate first part's mark occupancy described in the mark of first layer 2 Information, so that it may from by broadcast receive first layer 2 mark in find which bit be first part mark.

For example F00000H is that first layer 2 identifies, wherein F000H is first part's mark, then is used to indicate the mark of first layer 2 The information for the bit number that the mark of first part described in knowledge occupies is 16.

Optionally, if Remote of embodiment of the present invention UE has found in discovery process and selected a Relay UE can send One-to-one communication request to Relay UE, so that the Relay UE is that the Remote UE distributes second Minute mark is known；

Wherein, the active layer 2 that a pair of communication request uses is identified as the mark of third layer 2, destination address Relay The first layer 2 of UE identifies, and the mark of third layer 2 is by identifying identical first part's mark and second part mark with first layer 2 Know composition, the second part is identified as fixed value or is distributed by the Remote UE.

For example the first layer 2 of Relay UE is identified as F00000H, wherein F000H is first part's mark, and 00H is second Portion identification, then the mark of third layer 2 can be F0000CH, and wherein F000H is identical with first part's mark, 0CH for fixed value or The value distributed by the Remote UE.

Correspondingly, the Relay UE is distributed after the One-to-one communication request for receiving Remote UE for Remote UE Second part mark.

Optionally, it is that Remote UE distributes second part mark that Relay UE can establish message by One-to-one communication；

Wherein, the active layer 2 in the pair of connection setup message is identified as the first layer 2 and identifies, and target zone 2 identifies For the mark of active layer 2 used in a pair of communication request (i.e. above-mentioned third layer 2 identifies)

For example active layer 2 is identified as F0000CH in One-to-one communication request, first layer 2 is identified as F00000H, then one-to-one Active layer 2 in connection setup message is identified as F00000H, and target zone 2 is identified as F0000CH, and also carries Relay UE and be The second part mark of Remote UE distribution.

The mode of distribution, which can be, to be randomly assigned；A mark distribution can also be selected from unused (available) logo collection Remote UE is given, Relay UE selects a label from unused (available) logo collection under normal circumstances, will be by the mark It is deleted from unused (available) logo collection, do not connect with Relay UE in a Remote UE (such as Connection Release, switching Deng) after, the mark for distributing to the Remote UE is then added in unused (available) logo collection.It is also possible to be referred to state Show, that is, the mark being assigned with just is labeled as having used

It should be noted that establishing message above by One-to-one communication is that Remote UE distributes second part mark only It is for example, the mode of the second part identification notification Remote UE of distribution can be all suitable for the embodiment of the present invention by other.

Due in an implementation, it is possible to occur multiple Remote UE third layer 2 identify it is identical happen, in order to It distinguishes the different Remote UE embodiment of the present invention and a kind of scheme is provided:

The Remote UE will be used to identify that 2 identification information of non-layer of the Remote UE is placed in a pair of communication In request；

Correspondingly, the Relay UE will be described if in a pair of communication request including the information of non-layer 2 mark 2 identification information of non-layer for identifying the Remote UE for including in One-to-one communication request is placed in a pair of communication It establishes in message.

Optionally, 2 identification information of non-layer of the embodiment of the present invention is the information that can distinguish different Remote UE, such as IMSI (International Mobile Subscriber Identity, international mobile subscriber identification code), can also be by The random number for the fixed bit length that Remote UE is generated.

If the active layer 2 in the One-to-one communication request message that difference Remote UE is sent identifies identical (i.e. multiple Remote The third layer 2 of UE identifies identical), then the Relay UE establishes message by One-to-one communication as multiple Remote UE distribution Second part mark can know the second part mark of different Remote UE by the information that non-layer 2 identifies Not, and broadcast transmission.

For example the mark of active layer 2 that the One-to-one communication of Remote UE1 and Remote UE2 transmission is established in message is all The information that the One-to-one communication that F0000CH, Remote UE1 are sent establishes the mark of the non-layer 2 in message is 0010, Remote The information that the non-layer 2 that the One-to-one communication that UE2 is sent is established in message identifies is that 0011, Relay UE is Remote UE1 distribution Second part be identified as 01, for Remote UE1 distribution second part be identified as 10, then Relay UE can by 0010 with 01 binding, by broadcast after 0011 and 10 bindings (non-layer 2 here is identified by taking 2 systems as an example)；

Correspondingly, Remote UE1 can find corresponding 01 according to 0010；Remote UE2 is according to 0011 Find corresponding 10.

In an implementation, Remote UE can be selected when needing to establish connection with Relay UE by discovery process Relay UE is selected, and executes the above process；Discovery process can also be passed through when needing gravity treatment to other Relay UE Relay UE is selected, and executes the above process.

Corresponding Relay UE, can identify in periodic broadcasting first layer 2, can also identify in network side trigger layer 2 and divide again Match or determines that meeting layer 2 identifies reassignment condition.

Here the condition that reconfigures can be set as needed.Such as the unique feelings of same cell and neighboring community Condition, when Relay UE switches, just triggering mark is reassigned.It is unique for same eNB (evolution base station) and adjacent eNB Situation, when the switching across eNB occurs for Relay UE, just triggering mark is reassigned.In the case of unique in whole network, no It needs to reconfigure.

Optionally, the first part in the mark of first layer 2 in order to guarantee Relay UE identifies in a certain range only One property, first part's mark and same cell and the neighboring community of the Relay UE of network side of embodiment of the present invention distribution Other Relay UE first part identify it is different；Or

Optionally, network side can also be that Relay UE distributes first part's mark according to absolute geographic area.Such as institute It is different from the first part of other Relay UE in certain geographic area mark to state Relay UE.

As shown in figure 3, the first Relay UE of the embodiment of the present invention includes:

First determining module 300, for determining that first layer 2 identifies；

First processing module 301, for using the first layer 2 identify with the Remote UE that is identified using the second layer 2 into The transmission of row data；

Optionally, first determining module 300 is specifically used for:

Optionally, the first processing module 301 is also used to:

It is identified using the first layer 2 before carrying out data transmission with the Remote UE identified using the second layer 2, broadcast First layer 2 identifies, to notify the specific identifier of Relay UE described in Remote UE.

Optionally, the first processing module 301 is also used to:

Broadcast is used to indicate the information for the bit number that first part's mark occupies described in the mark of first layer 2.

Optionally, the first processing module 301 is also used to:

Optionally, the first processing module 301 is specifically used for:

Optionally, the first processing module 301 is also used to:

As shown in figure 4, the first Remote UE of the embodiment of the present invention includes:

Second determining module 400, for determining that the second layer 2 identifies；

Second processing module 401, for using the second layer 2 identify with the Relay UE that is identified using first layer 2 into The transmission of row data；

Optionally, the Second processing module 401 is also used to:

It is identified by the first layer 2 of Relay UE broadcast, determines first part's mark of the Relay UE.

Optionally, it is accounted for by the first part's mark described in the mark of first layer 2 that is used to indicate of Relay UE broadcast The information of bit number determines first part's mark of the Relay UE

Optionally, the Second processing module 401 is also used to:

Optionally, second determining module 400 is also used to:

In an implementation, for different application scenarios, the Relay UE of Fig. 3 may also be as the Remote UE of Fig. 4；Fig. 4 Remote UE may also be as the Relay UE of Fig. 3, so the function of Relay UE and Remote UE can be closed at one In entity (i.e. the module of Relay UE and Remote UE are in an entity), selection uses the function of Relay UE as needed The function of energy or Remote UE.

As shown in figure 5, second of Relay UE of the embodiment of the present invention includes:

Processor 501 executes following process for reading the program in memory 504:

First determining module 300, for determining that first layer 2 identifies；It is identified using transceiver 502 using the first layer 2 Carry out data transmission with the Remote UE for using the second layer 2 to identify；

Transceiver 502, for sending and receiving data under the control of processor 501.

Optionally, the processor 501 is specifically used for:

Optionally, the processor 501 is also used to:

Optionally, the mark of first layer 2 further includes other identifier, and the other identifier is for fixed value or by described Relay UE is distributed or is distributed by network side.

Optionally, the processor 501 is also used to:

Optionally, the processor 501 is specifically used for:

Optionally, the processor 501 is also used to:

In Fig. 5, bus architecture (is represented) with bus 500, and bus 500 may include the bus of any number of interconnection And bridge, the storage that bus 500 will include the one or more processors represented by general processor 501 and memory 504 represents The various circuits of device link together.Bus 500 can also will such as peripheral equipment, voltage-stablizer and management circuit or the like Various other circuits link together, these are all it is known in the art, therefore, is no longer further retouched to it herein It states.Bus interface 503 provides interface between bus 500 and transceiver 502.Transceiver 502 can be an element, can also be with It is multiple element, such as multiple receivers and transmitter, the list for communicating over a transmission medium with various other devices is provided Member.Such as: transceiver 502 receives external data from other equipment.Transceiver 502 is used for treated the data of processor 501 It is sent to other equipment.Depending on the property of computing system, user interface 505 can also be provided, for example, keypad, display, Loudspeaker, microphone, control stick.

Processor 501 is responsible for management bus 500 and common processing, and the general-purpose operating system is run as described in aforementioned.And it deposits Reservoir 504 can be used for the used data when executing operation of storage processor 501.

Optionally, processor 501 can be CPU (centre buries device), ASIC (Application Specific Integrated Circuit, specific integrated circuit), (Field-Programmable Gate Array, scene can compile FPGA Journey gate array) or CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices).

As shown in fig. 6, second of Remote UE of the embodiment of the present invention includes:

Processor 601 executes following process for reading the program in memory 604:

Determine that the second layer 2 identifies；It is identified using transceiver 602 using the second layer 2 mark and using first layer 2 Relay UE carries out data transmission；

Transceiver 602, for sending and receiving data under the control of processor 601.

Optionally, the processor 601 is also used to:

It is identified by the first layer 2 of Relay UE broadcast, determines first part's mark of the Relay UE；

Wherein, the mark of first layer 2 further includes the second part in addition to the specific identifier of Relay UE and is used to indicate The information for the bit number that first part's mark occupies described in the mark of first layer 2.

Optionally, the processor 601 is also used to:

In Fig. 6, bus architecture (is represented) with bus 600, and bus 600 may include the bus of any number of interconnection And bridge, the storage that bus 600 will include the one or more processors represented by general processor 601 and memory 604 represents The various circuits of device link together.Bus 600 can also will such as peripheral equipment, voltage-stablizer and management circuit or the like Various other circuits link together, these are all it is known in the art, therefore, is no longer further retouched to it herein It states.Bus interface 603 provides interface between bus 600 and transceiver 602.Transceiver 602 can be an element, can also be with It is multiple element, such as multiple receivers and transmitter, the list for communicating over a transmission medium with various other devices is provided Member.Such as: transceiver 602 receives external data from other equipment.Transceiver 602 is used for treated the data of processor 601 It is sent to other equipment.Depending on the property of computing system, user interface 605 can also be provided, for example, keypad, display, Loudspeaker, microphone, control stick.

Processor 601 is responsible for management bus 600 and common processing, and the general-purpose operating system is run as described in aforementioned.And it deposits Reservoir 604 can be used for the used data when executing operation of storage processor 601.

Optionally, processor 601 can be CPU, ASIC, FPGA or CPLD.

In an implementation, for different application scenarios, Relay UE may also be used as Remote UE；Remote UE can also Can be used as Relay UE, so the function of Relay UE and Remote UE can close in an entity (i.e. Relay UE and The module of Remote UE is in an entity), selection uses the function of Relay UE or the function of Remote UE as needed.

In an implementation, for different application scenarios, the Relay UE of Fig. 5 may also be as the Remote UE of Fig. 6；Fig. 6 Remote UE may also be as the Relay UE of Fig. 5, so the function of Relay UE and Remote UE can be closed at one In entity (i.e. the module of Relay UE and Remote UE are in an entity), selection uses the function of Relay UE as needed The function of energy or Remote UE.

Based on the same inventive concept, a kind of method carried out data transmission is additionally provided in the embodiment of the present invention, due to this The corresponding equipment of method is the Relay UE in the system that the embodiment of the present invention carries out data transmission, and this method solves the problems, such as Principle it is similar to the equipment, therefore the implementation of this method may refer to the implementation of equipment, and overlaps will not be repeated.

As shown in fig. 7, the first method carried out data transmission of the embodiment of the present invention includes:

Step 700, Relay UE determine that first layer 2 identifies；

Step 701, the Relay UE using the first layer 2 identify with the Remote UE that is identified using the second layer 2 into The transmission of row data；

Optionally, the Relay UE determines that first layer 2 identifies, comprising:

Based on the same inventive concept, a kind of method carried out data transmission is additionally provided in the embodiment of the present invention, due to this The corresponding equipment of method is the Remote UE in the system that the embodiment of the present invention carries out data transmission, and this method solution is asked The principle of topic is similar to the equipment, therefore the implementation of this method may refer to the implementation of equipment, and overlaps will not be repeated.

As shown in figure 8, second of the embodiment of the present invention method carried out data transmission includes:

Step 800, Remote UE determine that the second layer 2 identifies；

Step 801, the Remote UE using the second layer 2 identify with the Relay UE that is identified using first layer 2 into The transmission of row data；

Optionally, the mark of first layer 2 further includes the second part in addition to the specific identifier of Relay UE

The Remote UE determination needs to carry out Relay UE gravity treatment.

Several examples are set forth below to be illustrated the solution of the present invention.

Embodiment one:

Be assumed to be Relay UE Distribution Layer 2 mark network element be DPF (Direct Provisioning Function, directly Connect and function be provided) equipment, it is 24 bits that layer 2, which identifies total length, and first includes high 16 bit, and second includes low 8 bit. The second part that the layer 2 of Relay UE identifies is fixed as complete zero.Remote UE initiates one using the second part for being fixed as ' 01 ' To a communication request.

Remote UE1 is in the coverage area of Relay UE1 in embodiment, Remote UE1 select Relay UE1 as Its Relay UE for accessing network.For Remote UE2 in the coverage area of Relay UE2, Remote UE2 selects Relay UE2 accesses the Relay UE of network as it.

As shown in figure 9, the method that the embodiment of the present invention one carries out data transmission includes:

The network element (DPF) that step 1:Relay UE1 is identified to responsible Distribution Layer 2 sends the mark distribution of Relay UE layer 2 and asks It asks.

The network element (DPF) that step 1a:Relay UE2 is identified to responsible Distribution Layer 2 sends the mark distribution of Relay UE layer 2 and asks It asks.

Step 2:DPF is that the first part that Relay UE1 Distribution Layer 2 identifies identifies, first of the Relay UE1 of distribution Minute mark, which is known, is expressed as ' F000 ' with 16 systems.

Step 2a:DPF is that the first part that Relay UE2 Distribution Layer 2 identifies identifies, the first of the Relay UE2 of distribution Portion identification is expressed as ' 0F00 ' with 16 systems.

Step 3:Relay UE1 sends Relay discovery (relaying discovery) message in PC5, and wherein Relay UE1 is sent out The ProSe Relay UE ID (identifying close to business link terminal) carried in the discovery message sent is ' F00000 '.

Step 3a:Relay UE2 sends Relay discovery message in PC5, and wherein Relay UE2 is sent The ProSe Relay UE ID carried in discovery message is ' 0F0000 '.

Step 4:Remote UE1 initiates One-to-one communication request to Relay UE1, and wherein Remote UE1 is sent logical The active layer 2 of letter request message is identified as ' F00001 ', and target zone 2 is identified as ' F00000 ', and 40 bits are carried in message Random number ' 000000008B '.

Step 4a:Remote UE2 initiates One-to-one communication request to Relay UE2, and wherein Remote UE2 is sent logical The active layer 2 of letter request message is identified as ' 0F0001 ', and target zone 2 is identified as ' 0F0000 ', and 40 bits are carried in message Random number ' 0000560000 '.

Step 5:Relay UE1 sends One-to-one communication to Remote UE1 and establishes message.Wherein Relay UE1 is sent The active layer 2 that One-to-one communication establishes message is identified as ' F00000 ', and target zone 2 is identified as ' F00001 ', and step 4 is carried in message The UE mark ' 000000008B ' and Relay UE1 that middle Remote UE1 is used are the mark of layer 2 second of Remote UE1 distribution Partially ' 0C '.

Step 5a:Relay UE2 sends One-to-one communication to Remote UE2 and establishes message.Wherein Relay UE2 is sent One-to-one communication establish the active layer 2 of message and be identified as ' 0F0000 ', target zone 2 is identified as ' 0F0001 ', and step is carried in message The UE mark ' 0000560000 ' and Relay UE2 that Remote UE2 is used in rapid 4a are that the layer 2 of Remote UE2 distribution identifies Second part ' 0C '.

Step 6:Relay UE1 and Remote UE1 carries out data transmission, and the layer 2 that wherein Relay UE1 is used is identified as ' F00000 ', the layer 2 that Remote UE1 is used are identified as ' F0000C '.

Step 6a:Relay UE2 and Remote UE2 carries out data transmission, and the layer 2 that wherein Relay UE2 is used is identified as ' 0F0000 ', the layer 2 that Remote UE2 is used are identified as ' 0F000C '.

There is no inevitable sequential relationship between above-mentioned steps 1 and step 1a, it can first carry out step 1, then execute step 1a；Step 1a can also be first carried out, then executes step 1；It may also be performed simultaneously step 1 and step 1a.It is similar, step 2 with Step 2a, without inevitable between step 3 and step 3a, step 4 and step 4a, step 5 and step 5a and step 6 and step 6a Sequential relationship.

Embodiment two:

The network element for being assumed to be the mark of Relay UE Distribution Layer 2 is DPF (Direct Provisioning Function), layer 2 mark total lengths are 24 bits, and first includes high 16 bit, and second includes low 8 bit.What the layer 2 of Relay UE identified Second part is fixed as complete zero.Remote UE, which initiates One-to-one communication using the second part for being fixed as ' 01 ', to be requested.

Remote UE1 and Remote UE2 is in the coverage area of Relay UE1 in embodiment, Remote UE1 and Remote UE2 selects Relay UE1 as the Relay UE of its access network.

As shown in Figure 10, the method that the embodiment of the present invention two carries out data transmission includes:

Step 3:Relay UE1 sends Relay discovery (relaying discovery) message in PC5, and wherein Relay UE1 is sent out The ProSe Relay UE ID carried in the discovery message sent is ' F00000 '.

Step 4a:Remote UE2 initiates One-to-one communication request to Relay UE1, and wherein Remote UE2 is sent logical The active layer 2 of letter request message is identified as ' F00001 ', and target zone 2 is identified as ' F00000 ', and 40 bits are carried in message Random number ' 0000560000 '.

Step 5:Relay UE1 sends One-to-one communication to Remote UE1 and Remote UE2 and establishes message.Wherein The active layer 2 that the One-to-one communication that Relay UE1 is sent establishes message is identified as ' F00000 ', and target zone 2 is identified as ' F00001 ', It is Remote UE1 points that UE mark ' 000000008B ' and the Relay UE1 that Remote UE1 is used in step 4 are carried in message The layer 2 matched identify that second part ' 0C ' corresponding and step 4a in the UE mark ' 0000560000 ' that uses of Remote UE2 and Relay UE1 is that the mark second part ' 09 ' of layer 2 of Remote UE2 distribution is corresponding.

Step 6a:Relay UE1 and Remote UE2 carries out data transmission, and the layer 2 that wherein Relay UE1 is used is identified as ' F00000 ', the layer 2 that Remote UE2 is used are identified as ' 0F0009 '.

There is no inevitable sequential relationship between above-mentioned steps 1 and step 1a, it can first carry out step 1, then execute step 1a；Step 1a can also be first carried out, then executes step 1；It may also be performed simultaneously step 1 and step 1a.It is similar, step 2 with Step 2a, there is no inevitable sequential relationship between step 3 and step 3a, step 4 and step 4a and step 6 and step 6a.

Embodiment three:

The network element for being assumed to be the mark of Relay UE Distribution Layer 2 is DPF, and it is 24 bits that layer 2, which identifies total length, and first includes High 16 bit, second includes low 8 bit.The second part that the layer 2 of Relay UE identifies also is distributed by DPF.Remote UE is certainly The second part that oneself selection layer 2 identifies initiates One-to-one communication request.

As shown in figure 11, the method that the embodiment of the present invention three carries out data transmission includes:

Step 2:DPF is the mark of Relay UE1 Distribution Layer 2, and the mark of layer 2 of the Relay UE1 of distribution is indicated with 16 systems For ' F00006 ',

Step 2a:DPF is the mark of Relay UE2 Distribution Layer 2, the 16 system tables of first part of the Relay UE2 of distribution It is shown as ' 0F0009 '.

Step 3:Relay UE1 sends Relay discovery message in PC5, and wherein Relay UE1 is sent The ProSe Relay UE ID carried in discovery message is ' F00006 '.

Step 3a:Relay UE2 sends Relay discovery message in PC5, and wherein Relay UE2 is sent The ProSe Relay UE ID carried in discovery message is ' 0F0009 '.

Step 4:Remote UE1 initiates One-to-one communication request to Relay UE1, and wherein Remote UE1 is sent logical The active layer 2 of letter request message is identified as ' F00021 ', and high 16 bit is identical as Relay UE1, and low 8 bit is oneself selection , the layer 2 that Remote UE cannot select Relay UE to use identifies.Target zone 2 is identified as ' F00006 ', carries one in message The random number ' 000000008B ' of a 40 bit.

Step 4a:Remote UE2 initiates One-to-one communication request to Relay UE2, and wherein Remote UE2 is sent logical The active layer 2 of letter request message is identified as ' 0F000B ', and high 16 bit is identical as Relay UE1, and low 8 bit is oneself selection , the layer 2 that Remote UE cannot select Relay UE to use identifies.Target zone 2 is identified as ' 0F0009 ', carries one in message The random number ' 0000560000 ' of a 40 bit.

Step 5:Relay UE1 sends One-to-one communication to Remote UE1 and establishes message.Wherein Relay UE1 is sent The active layer 2 that One-to-one communication establishes message is identified as ' F00006 ', and target zone 2 is identified as ' F00021 ', and step 4 is carried in message The UE mark ' 000000008B ' and Relay UE1 that middle Remote UE1 is used are the mark of layer 2 second of Remote UE1 distribution Partially ' 0C '.

Step 5a:Relay UE2 sends One-to-one communication to Remote UE2 and establishes message.Wherein Relay UE2 is sent One-to-one communication establish the active layer 2 of message and be identified as ' 0F0009 ', target zone 2 is identified as ' 0F000B ', and step is carried in message The UE mark ' 0000560000 ' and Relay UE2 that Remote UE2 is used in rapid 4a are that the layer 2 of Remote UE2 distribution identifies Second part ' 0B '.

Step 6a:Relay UE2 and Remote UE2 carries out data transmission, and the layer 2 that wherein Relay UE2 is used is identified as ' 0F0000 ', the layer 2 that Remote UE2 is used are identified as ' 0F000B '.

Embodiment 4:

After embodiment 3, Relay UE1 and Remote UE1 are carrying out One-to-one communication, Relay UE2 with Remote UE2 is carrying out One-to-one communication, with the movement of the position Relay UE2 and/or Remote UE2, Remote UE2 reselects the Relay UE that Relay UE1 is communicated between network as it.

Remote UE2 initiates One-to-one communication request, the communication request message that Remote UE2 is sent to Relay UE1 Active layer 2 be identified as ' F00010 ', high 16 bit is identical as Relay UE1, low 8 bit be oneself selection, Remote UE The layer 2 that Relay UE cannot be selected to use identifies.Target zone 2 is identified as ' F00006 ', carried in message 40 bit with Machine number ' 0000560000 '.

Relay UE1 sends One-to-one communication to Remote UE2 and establishes message.What wherein Relay UE1 was sent is one-to-one The active layer 2 of connection setup message is identified as ' F00006 ', and target zone 2 is identified as ' F00010 ', is carried in step 4 in message The UE mark ' 0000560000 ' and Relay UE1 that Remote UE1 is used are that the layer 2 of Remote UE2 distribution identifies second Divide ' 10 '.

Relay UE1 and Remote UE1 and Remote UE2 carry out data transmission, the layer 2 that wherein Relay UE1 is used It is identified as ' F00000 ', the layer 2 that Remote UE1 is used is identified as ' F0000C ', and the layer 2 that Remote UE2 is used is identified as ‘F00010’。

It can be seen from the above: Relay of embodiment of the present invention UE is identified using the first layer 2 and is used second The Remote UE of 2 mark of layer carries out data transmission.Due to including identical in the first layer 2 mark and the second layer 2 mark By network side distribution first part identify, and the second layer 2 mark in further include second distributed by Relay UE Minute mark is known, and first part is identified as the specific identifier of Relay UE, and second part is identified as the specific identifier of Remote UE, makes The mark for obtaining PC5 interface is unique in a certain range, avoids the mark of PC5 interface from clashing in a certain range, to protect The mark of card PC5 interface can be applied to UE to Network Relay scene；Further improve system performance.Obviously, originally Various changes and modifications can be made to the invention by the technical staff in field without departing from the spirit and scope of the present invention.In this way, It is if these modifications and changes of the present invention is within the scope of the claims of the present invention and its equivalent technology, then of the invention It is intended to encompass including these modification and variations.

Claims

1. a kind of method carried out data transmission, which is characterized in that this method comprises:

Link terminal Relay UE determines that first layer 2 identifies；

The Relay UE is identified using the first layer 2 and is counted with the distance terminal Remote UE identified using the second layer 2 According to transmission；

It wherein, include that the identical first part by network side distribution marks in the mark of first layer 2 and the second layer 2 mark Know, and further include the second part mark distributed by Relay UE in the mark of the second layer 2, first part is identified as Relay The specific identifier of UE, second part are identified as the specific identifier of Remote UE.

2. the method as described in claim 1, which is characterized in that the Relay UE determines that first layer 2 identifies, comprising:

The Relay UE requests specific identifier to network side, and the mark of layer 2 of network side distribution is identified as first layer 2； Or

The Relay UE requests specific identifier to network side, and according to the second part of pre-configuration mark and network side distribution First part's identifier combination is identified at first layer 2；Or

The Relay UE requests specific identifier to network side, and the second part mark and network that the Relay UE is distributed First part's identifier combination of side distribution is identified at first layer 2.

3. method according to claim 2, which is characterized in that the Relay UE is identified and used using the first layer 2 Before the Remote UE that the second layer 2 identifies carries out data transmission, further includes:

4. method as claimed in claim 3, which is characterized in that the Relay UE, which is also broadcasted, is used to indicate the mark of first layer 2 Described in first part mark occupy bit number information.

5. the method as described in claim 1, which is characterized in that the Relay UE is identified and used using the first layer 2 Before the Remote UE that the second layer 2 identifies carries out data transmission, further includes:

The Relay UE distributes second part mark after the One-to-one communication request for receiving Remote UE for Remote UE Know.

6. method as claimed in claim 5, which is characterized in that the Relay UE is at least one Remote UE distribution the Two portion identifications, comprising:

Wherein, the active layer 2 in the pair of connection setup message is identified as the first layer 2 and identifies, and target zone 2 is identified as institute Active layer 2 used in One-to-one communication request is stated to identify.

7. method as claimed in claim 6, which is characterized in that the Relay UE is at least one Remote UE distribution the Two portion identifications, further includes:

If including the information of non-layer 2 mark in a pair of communication request, the Relay UE is communicated the pair of one 2 identification information of non-layer for identifying the Remote UE for including in request is placed in the pair of connection setup message.

8. method as claimed in claim 5, which is characterized in that the Relay UE is at least one Remote UE distribution the Two portion identifications, further includes:

If the active layer 2 in the One-to-one communication request message that difference Remote UE is sent identifies identical, the Relay UE is logical Crossing One-to-one communication and establishing message is that multiple Remote UE distribute second part mark.

9. the method as described in claim 1~8 is any, which is characterized in that the first part of Relay UE mark with it is same The first part of other Relay UE of one cell and neighboring community identifies different；Or

The first part of the first part mark and same base station and other Relay UE of adjacent base station of the Relay UE Mark is different；Or

10. the method as described in claim 1~8 is any, which is characterized in that the Relay UE determines 2 mark of first layer Before, further includes:

11. a kind of method carried out data transmission, which is characterized in that this method comprises:

Remote UE determines that the second layer 2 identifies；

The Remote UE is identified using the second layer 2 to be carried out data transmission with the Relay UE identified using first layer 2；

12. method as claimed in claim 11, which is characterized in that before the Remote UE determines that the second layer 2 identifies, also Include:

The Remote UE is identified by the first layer 2 of Relay UE broadcast, determines the first part of the Relay UE Mark.

13. method as claimed in claim 12, which is characterized in that the Remote UE passes through Relay UE broadcast First layer 2 identifies, and determines first part's mark of the Relay UE, comprising:

The Remote UE is used to indicate first part's mark described in the mark of first layer 2 by Relay UE broadcast The information of the bit number of occupancy determines first part's mark of Relay UE described in the mark of first layer 2.

14. method as claimed in claim 11, which is characterized in that before the Remote UE determines that the second layer 2 identifies, also Include:

The Remote UE sends One-to-one communication request to Relay UE, so that the Relay UE is the Remote UE Distribute second part mark；

Wherein, the active layer 2 that a pair of communication request uses is identified as the mark of third layer 2, and destination address is the first layer 2 Mark, the third layer 2 mark include identical first part's mark being identified with first layer 2 and second part identifies, and described the Two portion identifications are fixed value or are distributed by the Remote UE.

15. method as claimed in claim 14, which is characterized in that the Remote UE is identified by third layer 2 to Relay UE sends One-to-one communication request, further includes:

The Remote UE will be used to identify that 2 identification information of non-layer of the Remote UE is placed in a pair of communication request In.

16. method as claimed in claim 11, which is characterized in that before the Remote UE determines that the second layer 2 identifies, also Include:

The Remote UE establishes message according to the One-to-one communication from the Relay UE received, determines the Relay UE is the second part mark of Remote UE distribution.

17. the method as described in claim 11~16 is any, which is characterized in that the Remote UE determines that the second layer 2 identifies Before, further includes:

The Remote UE determination needs to carry out Relay UE gravity treatment.

18. a kind of Relay UE carried out data transmission, which is characterized in that the Relay UE includes:

First determining module, for determining that first layer 2 identifies；

First processing module carries out data with the Remote UE identified using the second layer 2 for identifying using the first layer 2 Transmission；

19. Relay UE as claimed in claim 18, which is characterized in that first determining module is specifically used for:

Specific identifier is requested to network side, and is identified according to the second part of pre-configuration mark and the first part of network side distribution It is combined into the mark of first layer 2；Or

Specific identifier, and first that the second part mark of Relay UE distribution is distributed with network side are requested to network side Portion identification is combined into the mark of first layer 2.

20. Relay UE as claimed in claim 18, which is characterized in that the first processing module is also used to:

It is identified before carrying out data transmission with the Remote UE identified using the second layer 2, is being received using the first layer 2 After the One-to-one communication request of Remote UE, second part mark is distributed for Remote UE.

21. Relay UE as claimed in claim 20, which is characterized in that the first processing module is specifically used for:

22. Relay UE as claimed in claim 21, which is characterized in that the first processing module is specifically used for:

If including the information of non-layer 2 mark in a pair of communication request, will include in a pair of communication request 2 identification information of non-layer for identifying the Remote UE is placed in the pair of connection setup message.

23. Relay UE as claimed in claim 22, which is characterized in that the first processing module is also used to:

If the active layer 2 in the One-to-one communication request message that difference Remote UE is sent identifies identical, pass through One-to-one communication Establishing message is that multiple Remote UE distribute second part mark.

24. the Relay UE as described in claim 18~23 is any, which is characterized in that the first part of the Relay UE marks Know different from the first part of same cell and other Relay UE of neighboring community mark；Or

25. the Relay UE as described in claim 18~23 is any, which is characterized in that first determining module is also used to:

After determining that the mark of network side trigger layer 2 reassigns or determine that meeting layer 2 identifies reassignment condition, determine that first layer 2 is marked Know.

26. a kind of Remote UE carried out data transmission, which is characterized in that the Remote UE includes:

Second processing module carries out data biography with the Relay UE identified using first layer 2 for identifying using the second layer 2 It is defeated；

27. Remote UE as claimed in claim 26, which is characterized in that the Second processing module is also used to:

One-to-one communication request is sent to Relay UE, so that the Relay UE is that the Remote UE distributes second part Mark；

28. Remote UE as claimed in claim 27, which is characterized in that the Second processing module is also used to:

29. Remote UE as claimed in claim 26, which is characterized in that the Second processing module is also used to:

Message is established according to the One-to-one communication from the Relay UE received, determines that the Relay UE is Remote The second part mark of UE distribution.

30. the Remote UE as described in claim 26~29 is any, which is characterized in that second determining module is also used to: