CN103731902B - The querying method and device of direct-connected communication target end message - Google Patents
The querying method and device of direct-connected communication target end message Download PDFInfo
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- CN103731902B CN103731902B CN201210387077.XA CN201210387077A CN103731902B CN 103731902 B CN103731902 B CN 103731902B CN 201210387077 A CN201210387077 A CN 201210387077A CN 103731902 B CN103731902 B CN 103731902B
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Abstract
The invention discloses a kind of querying methods and device of direct-connected communication target end message, when source terminal finds target terminal, the source radio reception device that source terminal is accessed sends D2D to source network entity and finds request message, carries the address information and source terminal mark of the target network entity that target terminal is connected；Source network entity sends D2D inquiry request messages according to the address information of target network entity to target network entity, carries source terminal mark and target terminal mark；Target network entity inquires the information of target terminal, and query result is returned to source network entity by D2D query response messages.Using the present invention, the discovery list for being found D2D equipment can be inquired, discovery end D2D equipment is given to generate final discovery list.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of querying methods and dress of direct-connected communication target end message
It sets.
Background technology
D2D (Device-to-Device, direct-connected communication) technology based on Cellular Networks is a kind of under the control of system,
The new technique directly communicated between multiple terminal devices for supporting D2D functions.3GPP (3rd before D2D technologies have been broken
Generation Partnership Project, third generation partner program) long term evolution (Evolved that defines
Package System, referred to as EPS) in system, two wireless terminal devices must pass through base station or radio reception device
The limitation that can be communicated.System resource occupancy can be thus reduced, frequency spectrum efficiency of cellular communication system is increased, reduces terminal hair
Power consumption is penetrated, and largely saves network operation cost.
The system architecture diagram of D2D technologies based on Cellular Networks including two as shown in Figure 1, can carry out mutually D2D discoveries
With UE, UE of D2D communications radio reception device being connected to and the network equipment and Home Environment.Wherein, radio reception device
Can be the eNB (the node B of evolution) or non-3 GPP access (such as WLAN) that 3GPP is defined；The network equipment can be core net
Equipment such as mobility management entity (Mobile Management Entity, abbreviation MME), neighbours find server, or special
D2D servers of definition etc.；Home Environment may include home subscriber server (Home Subscriber Server, abbreviation
For HSS), application server, grouped data network gateway (Packet Data Network Gateway, referred to as P-GW) etc..
D2D technologies include that D2D has found to communicate two parts with D2D.Wherein, D2D discoveries refer to when distance closely arrives wireless device
Between when can be with direct communication, each other it can be found that other side between wireless terminal device；D2D communications refer to that two wireless terminals are set
For after finding other side, do not communicated directly by core net.
D2D equipment needs first to complete the discovery to other D2D equipment closed on before carrying out D2D communications.D2D has found
Referring to a D2D equipment can be found that it exists and identifies the features such as its identity by other one or more D2D equipment.Current
D2D has found that method is mainly to be found the identity information of end D2D device broadcasts oneself, it is found that end D2D equipment carries out corresponding D2D
The D2D identity informations received are identified in the search of equipment identity information, to complete the discovery procedure of D2D equipment.
Before the discovery procedure of D2D equipment, network can be that one D2D mark of D2D equipment distribution should to unique mark
The identity of D2D equipment.D2D marks can be that the D2D of radio reception device (such as eNB) distribution has found mark (D2D
Discovery ID), the ProSe ID either distributed by core network element (such as MME D2D Server etc.).It is set in D2D
In standby discovery procedure, be found end D2D equipment can notice the D2D of oneself identify give find end D2D equipment.It was found that end D2D is set
A series of standby D2D marks for being found end D2D equipment that can receive oneself and the D2D marks of oneself are reported to network,
By network according to the mapping relations of D2D mark and UE, retrieves the discovery end D2D equipment of network preservation and be found that D2D is held to set
Standby discovery list information.The discovery list information defines the UE and can be found which UE and UE can be by which UE
It was found that cannot be found by which UE etc..Network according to the discovery list information, judge to find end D2D equipment whether it can be found that
It is found end D2D equipment, and detectable is found that D2D equipment list and relevant information is held to inform discovery end D2D equipment.
Storage D2D equipment finds that the network entity of list is generally core network element such as MME, HSS or D2D server
Deng.In the discovery procedure of above-mentioned D2D equipment, it is more likely that be found end D2D equipment and find end D2D equipment positioned at different
Under MME D2D server admins, that is, it is found to hold and find that the D2D at end has found that list is not stored in the same place.
At this point, the discovery list for being found end D2D equipment how is inquired, to judge to find whether end D2D equipment can find to be sent out
D2D equipment is now held, is problem to be solved in the prior art.
Invention content
The technical problem to be solved by the present invention is to provide a kind of querying method and device of direct-connected communication target end message, energy
The discovery list for being found D2D equipment is enough inquired, discovery end is given to generate final discovery list.
In order to solve the above technical problems, the present invention provides a kind of querying method of direct-connected communication target end message, source
When terminal finds target terminal,
The source radio reception device that the source terminal is accessed sends direct-connected communication (D2D) to source network entity and finds request
Message, the D2D have found to carry address information and the source of the target network entity that the target terminal is connected in request message
Terminal iidentification；
The source network entity sends D2D according to the address information of the target network entity to the target network entity
Inquiry request message carries the source terminal mark and target terminal mark in the D2D inquiry request messages；
The target network entity inquires the information of the target terminal, and is tied inquiry by D2D query response messages
Fruit returns to the source network entity.
Further, the target network entity inquires the information of the target terminal, including：
The target network entity finds list, root in the D2D for locally or to D2D servers inquiring the target terminal
Find whether target terminal described in list query can be found and/or whether can by the source terminal according to the D2D of the target terminal
It enough finds the source terminal, and query result is returned into the source network entity by the D2D query response messages.
Further, the target terminal that the source terminal is found includes one or more；
The source network entity generates the source according to the D2D query response messages received, for the source terminal
The detectable D2D of terminal finds list and/or it can be found that the D2D of the source terminal has found list.
Further, before the source radio reception device sends D2D discovery request messages to the source network entity, also
Including：
The source terminal sends request message to the source radio reception device, and the request message includes：It is sent out in D2D
The D2D for the target terminal that existing process receives has found what mark or Prose ID and/or the target terminal were connected
Target network entity information.
Further, believe the address for the target network entity that the source radio reception device is connected the target terminal
Breath is associated；
When the Target Wireless access device that the target terminal is accessed is with the source radio reception device difference, the source
Radio reception device asks the address of target network entity that the target terminal connected to the Target Wireless access device
Information.
Further, the source terminal mark includes：The temporary identifier of the source terminal；
When the source network entity receives the D2D discoveries request message, looked into according to the temporary identifier of the source terminal
Ask the true identity of the source terminal；
In the D2D inquiry request messages that the source network entity is sent to the target network entity, including：It is described
The temporary identifier of the true identity of source terminal, the target terminal.
Further, the temporary identifier includes：The eNB UE that the D2D of terminal has found mark or eNB is terminal distribution
The S1AP ID ProSe ID that either MME is the MME UE S1AP ID of terminal distribution or network entity is terminal distribution, or
The GUTI of person's terminal；
The true identity, including：The IMSI or MSISDN of terminal.
Further, when the target network entity receives the D2D inquiry request messages, according to the target terminal
Temporary identifier inquire the true identity of the target terminal, and in the D2D inquiries for returning to the source network entity
Include the true identity of the target terminal in response message.
Further, the target terminal that the source terminal is found includes one or more；
The source network entity generates target end according to the D2D query response messages received, for the source terminal
Hold true identity list.
Further, the method further includes：
When the source network entity receives the D2D query response messages, according to the true identity of the target terminal,
List is found in the D2D for locally or to D2D servers inquiring the source terminal, judges whether the source terminal can be by the mesh
It marks terminal to find and/or whether it can be found that the target terminal, and generates the detectable D2D of the target terminal and find list
And/or it can be found that the D2D of the target terminal has found list.
Further, the method further includes：
When radio reception device is that terminal distribution D2D has found that mark or terminal are moved to one and new wireless connect again
When entering equipment, the network entity that radio reception device is connected to the terminal sends the newer D2D discovery marks of the terminal
Know.
Further, the method further includes：
Network entity is that terminal distribution ProSe ID or GUTI or terminal are moved to a new network entity again
When, the network entity sends the newer ProSe ID or GUTI of the terminal to the radio reception device of the terminal.
The present invention also provides a kind of inquiry units of direct-connected communication target end message, including in radio reception device
D2D has found that request unit and D2D find list issuance unit,
The D2D has found request unit, when for knowing that the source terminal under this radio reception device finds target terminal, to
Source network entity sends D2D and finds that request message, the D2D find to carry the mesh that the target terminal is connected in request message
Mark the address information and source terminal mark of network entity；
The D2D has found list issuance unit, the D2D discovery lists sent for receiving the source network entity, and under
Issue the source terminal.
Further, the D2D has found request unit, and the request message for being sent according to the source terminal knows institute
It states source terminal and finds target terminal, wherein the request message includes：It is whole in the target that D2D discovery procedures receive
The D2D at end has found the target network entity information that mark or Prose ID and/or the target terminal are connected.
Further, the D2D has found request unit, the target network entity for being connected the target terminal
Address information is associated；And the Target Wireless access device accessed when the target terminal and the source wireless access
When equipment difference, the address for the target network entity that the target terminal connected is asked to be believed to the Target Wireless access device
Breath.
Further, described device further includes that the D2D in radio reception device has found mark distribution and updating unit,
The D2D has found mark distribution and updating unit, for finding to identify for terminal distribution D2D and notifying the terminal
The network entity connected；And find that mark or terminal are moved to one and new wireless connect again for terminal distribution D2D
When entering equipment, the network entity connected to the terminal sends the newer D2D discovery marks of the terminal.
In addition, the present invention also provides a kind of inquiry units of direct-connected communication target end message, including in network entity
D2D inquiry request units, D2D inquiry response units,
The D2D inquiry requests unit, when the D2D for receiving radio reception device transmission has found request message, root
The address information that the target network entity that the target terminal carried in request message is connected is found according to the D2D, to the mesh
It marks network entity and sends D2D inquiry request messages, the source terminal mark and the mesh are carried in the D2D inquiry request messages
Mark terminal iidentification；And receive the D2D query response messages that the target network entity returns；
The D2D inquiry responses unit, for receive source network entity transmission D2D inquiry request messages when, inquiry
The information of the target terminal, and query result is returned to by the source network entity by D2D query response messages.
Further, the D2D inquiry responses unit, for locally or to D2D servers inquiring the target end
The D2D at end has found list, finds whether target terminal described in list query can be by source end according to the D2D of the target terminal
Whether end finds and/or it can be found that the source terminal, and query result is returned to institute by the D2D query response messages
State source network entity.
Further, the D2D inquiry requests unit, when being additionally operable to receive the D2D discoveries request message, according to institute
It states D2D and finds that the temporary identifier of the source terminal carried in request message inquires the true identity of the source terminal；And
It is sent in the D2D inquiry request messages of the target network entity and carries the true identity of the source terminal, the mesh
Mark the temporary identifier of terminal；
The D2D inquiry responses unit, when being additionally operable to receive the D2D inquiry request messages, according to target end
The temporary identifier at end inquires the true identity of the target terminal, and is looked into the D2D for returning to the source network entity
Ask the true identity for including the target terminal in response message.
Further, the D2D inquiry requests unit is additionally operable to according to the D2D query response messages received, raw
List and/or it can be found that the source terminal are found at the list of target terminal true identity, and/or the detectable D2D of source terminal
D2D find list, be sent to radio reception device.
Further, the D2D inquiry requests unit, when being additionally operable to receive the D2D query response messages, according to institute
The true identity for stating target terminal finds list in the D2D for locally or to D2D servers inquiring the source terminal, judges institute
Whether whether state source terminal can be found by the target terminal and/or it can be found that the target terminal, and generate the target
The detectable D2D of terminal finds list and/or it can be found that the D2D of the target terminal has found list.
Further, described device further includes terminal iidentification distribution and the updating unit in network entity,
Terminal iidentification distribution and updating unit, for being terminal distribution ProSe ID or GUTI, and for terminal
Terminal distribution ProSe ID or GUTI is assigned as or when terminal is moved to a new network entity, to the terminal
Radio reception device sends the newer ProSe ID or GUTI of the terminal.
Inquiry and decision that list is found to the D2D of source UE and target UE may be implemented in the scheme through the invention
Judge, to generate final discovery list, completes the D2D discovery procedures of user.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 shows a kind of model of D2D system architectures in wireless communication system；
Fig. 2 shows the schematic diagrames that D2D in the wireless communication system of the embodiment of the present invention has found flow；
Fig. 3 shows that D2D in the wireless communication system of another embodiment has found the schematic diagram of flow；
Fig. 4 shows that D2D in the wireless communication system of another embodiment has found the schematic diagram of flow；
Fig. 5 shows that D2D in the wireless communication system of another embodiment has found the schematic diagram of flow；
Fig. 6 shows that D2D in the wireless communication system of another embodiment has found the schematic diagram of flow；
Fig. 7 shows that the D2D of the embodiment of the present invention has found the schematic diagram of ID more new technological process；
Fig. 8 shows the schematic diagram of ProSe ID or the GUTI more new technological process of the embodiment of the present invention；
Fig. 9 shows the schematic diagram of the inquiry unit of the D2D target terminal information of the embodiment of the present invention；
Figure 10 shows the schematic diagram of the inquiry unit of the D2D target terminal information of another embodiment of the present invention.
Specific implementation mode
Present embodiment provides a kind of querying method of D2D target terminal information in wireless communication system, specific using such as
Lower scheme：
Source radio reception device sends D2D to source network entity and finds that request message, the message carry target network entity
The instruction information of address；
Source network entity indicates that information sends D2D inquiry requests to target network entity and disappears according to the address received
Breath；
Target network entity inquires the relevant information (the discovery list information of such as target UE) of target UE, and to source network
Entity sends D2D query response messages, returns to query result.
Wherein, the radio reception device is：ENB or WLAN access devices.
The source network entity and target network entity be：MME D2D servers or 3GPPAAA servers.
Wherein, before sending D2D discovery request messages to source network entity in source radio reception device, source wireless access is set
The standby D2D for receiving source UE transmissions has found that request message, the message carry the target UE's that the target UE that source UE is received is sent
D2D has found the Target eNB identity that identification list or ProSe ID lists and/or target UE are connected；If target UE connects
The target network entity connect is different from the network entity that source UE is connected, then the mesh that source radio reception device is connected target UE
The address instruction information of mark network entity is associated.If eNB and source eNB that target UE is connected are differed, source eNB meetings
The address information of the target MME connected to target eNB request targets UE.
Wherein, the D2D that the source radio reception device is sent to source network entity has found the instruction mesh that request message carries
Marking the information of Network entity address can be：The IP address of target network entity either the GUMMEI of target network entity or
The GUTI values of target UE.
Wherein, the D2D that the source radio reception device is sent to source network entity has found that request message also carries parameter：
The temporary identifier of source UE and target UE.The temporary identifier can be：The D2D of source UE has found mark or eNB for the UE points
ENB UE the S1AP ID or MME matched is the MME UE S1AP ID of UE distribution or network entity is what UE was distributed
The GUTI of ProSe ID or UE.
Wherein, when eNB is that UE is distributed when D2D has found ID or eNB is moved to a new eNB again, eNB needs reality
When send newer D2D to core network entity (MME or D2D Server etc.) and find ID.
Wherein, when core network entity is when UE distributes ProSe ID or GUTI again or UE is moved to a new MME
When, MME needs send new ProSe ID or GUTI to eNB in real time.
Wherein, before the source network entity sends D2D inquiry request messages to target network entity, further include：Source
Network entity retrieves the true identity of source UE according to the temporary identifier of the source UE received.The true identity is：UE's
The MSISDN of IMSI or UE.
Wherein, the D2D inquiry request messages that the source network entity is sent to target network entity carry parameter：Source UE
True identity, the temporary identifier of target UE.When the temporary identifier of the target UE is eNB UE S1AP ID, also need to carry
The correlated identities of eNB.
Wherein, before the discovery list of target network entity inquiry correlation UE, further include：Target network is according to connecing
The temporary identifier of the target UE received, the true identity of searched targets UE, and target UE is inquired according to the true identity of target UE
D2D find list, according to the discovery list judge target UE whether can be found by source UE, and/or whether it can be found that described in
Source UE.
Wherein, the D2D query response messages that the target network entity is sent to source network entity also carry parameter：Mesh
Mark the application layer identification of UE and/or the true identity of target UE.
Wherein, if the D2D that source network entity receives has found that request includes multiple source networks being connect with source UE
The temporary identifier of the different target UE of entity, then source network entity respectively to target network entity send D2D inquiry request messages,
And summarize carried in the D2D query response messages received result instruction, formed source UE final D2D find list, and/or
It can be found that the D2D of the source UE has found list.
Wherein, after source network entity receives the D2D inquiry responses that target network entity is sent, source network entity is according to this
The true identity of the target UE carried in message is retrieved the discovery list of the source UE of oneself preservation, is judged according to the discovery list
Whether source UE can be found by target UE, and/or whether can be found that the target UE, and then generate the detectable D2D of target UE
It was found that list and/or it can be found that the target UE D2D find list.Further, source network entity generates source UE respectively
With the discovery list of target UE；The D2D of source UE is had found that list is sent to source UE by source network entity, and the D2D of target UE is had found
List is sent to target UE.
For the ease of illustrating the present invention, the implementation of technical solution of the present invention is made below with reference to drawings and the specific embodiments
It is described in further detail.It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application
It mutually can arbitrarily combine.
Embodiment one
As shown in Fig. 2, be located within the scope of the same eNB present embodiment illustrates the UE1 for having D2D functions and target UE but
When being different under MME, source UE1 has found the D2D discovery procedures of target UE.To put it more simply, illustrating only target in the schematic diagram
The scene that UE is 1.Wherein, source UE1 is located under the management of source MME1, and target UE2 is located under the management of target MME2.In the mistake
Cheng Zhong, source UE1 and target UE2 use unique D2D of eNB distribution to find its D2D equipment of mark for marking.The process is specific
Step is described as follows：
1) when UE1, UE2 start D2D business, UE1, UE2 carry out D2D certifications and mandate with network respectively.In the process
In, eNB is that the UE of each acquisition D2D service authorization distributes a unique D2D discoveries ID.Optionally, eNB sends out the D2D
Existing ID is reported to MME.
2) source UE1 carries out D2D equipment and finds flow.In this process, source UE1 can receive the target UE being found and send
D2D find ID.Before this step, eNB may need the broadcast of all UE into cell to match for the D2D physical layers found
Confidence ceases.
3) source UE1 sends D2D to eNB and finds that request message, the message carry parameter：What what source UE1 was received be found
The D2D of target UE has found identification list, the identity (D2D of such as UE1 has found ID or C-RNTI etc.) of UE1 and/or energy
Show to trigger the D2D application identities of the D2D business.
4) after eNB receives the D2D discovery request messages that source UE1 is sent, the D2D of target UE is had found that identity map is MME
The temporary identifier for the UE that can be identified；
ENB also needs the addressable address by each target UE being found MME connected to be associated with.
Wherein, the UE temporary identifiers can be：ENB is the eNB of the unique mark UE in the eNB of UE distribution
UE S1AP ID or MME are that MME UE the S1AP ID or D2D of the unique mark UE in the MME of UE distribution has found mark
Know.
Wherein, the addressable address of the MME includes：The IP address or MME of MME identifies GUMMEI.
5) eNB sends D2D to source MME1 and finds that request message, the message carry parameter：Temporary identifier (such as the eNB of UE1
UE S1AP ID or MME UE S1AP ID or D2D has found mark), it is found interim ID (such as the eNB UE S1AP of UE
ID or MME UE S1AP ID or D2D have found mark), it is found addressable address (such as the MME for the MME of UE connected
IP address or GUMMEI), and/or can be shown that the application identities for triggering the D2D business.
6) source MME1 is found the addressable address (IP of MME of the MME of the discovery list of UE according to the storage that receives
Location or GUMMEI) parsing target MME address.
7) source MME1 is stored with to each is found the target MME transmission D2D inquiry request messages that UE has found list, should
Message carries parameter：Being found the temporary identifier of UE, (such as eNB UE S1APID or MME UE S1AP ID or D2D has found
Mark), the true identity of UE1, and/or can be shown that the application identities for triggering the D2D business.
Wherein, the true identity of the source UE1 can be：The MSISDN of the IMSI or UE1 of UE1.
8) temporary identifier for being found UE is mapped as the true identity of UE by target MME.
Optionally, target MME judges whether the UE can be found by source UE1 according to the discovery list of the UE of storage.
Optionally, whether target MME judges the UE it can be found that the source UE1 according to the discovery list of the UE of storage.
Optionally, target MME is associated with the application layer identification of the UE.The association can be directed to a certain specific D2D applications.
9) target MME sends D2D query response messages to source MME1, which carries parameter：It is found the true of target UE
Real mark, and/or whether be found target UE can be by the application layer identification of instruction and/or target UE that source UE1 has found.
Wherein, source MME1 is directed to each UE being found in target UE lists, executes step 7-9 respectively).
10) source MME1 indicates that generation is found target according to the result of each D2D query response messages feedback received
The true identity list of UE and/or the detectable D2D user lists of final source UE1.
11) source MME1 sends D2D to eNB and finds that response message, the message carry parameter：The user that can be found by source UE1
List.Wherein, which can be identified with the temporary identifier of target UE.Preferably, which can also take
Layer identification is applied accordingly with each target UE.
12) eNB sends D2D to UE and finds that response message, the message carry parameter：Can name be found by the D2D that source UE1 has found
Single (herein or being user list), and/or it can be found that the source UE1 user list.Wherein, which can be with
It is identified with the temporary identifier of target UE.Preferably, which can also carry the corresponding application layer marks of each target UE
Know.
13) user list that can be found that UE1 storages in source receive.
Optionally, source UE1 reports the application layer identification for the target UE that can be found accordingly to application layer.In the process
In, corresponding application layer ID filterings may be carried out.
In step 11), 12) in, source MME1 can not also send to UE and be found the application layer ID of UE.At this point, source MME1
Application layer ID lists can be sent to corresponding application server AS (Application Server), application is passed through by AS
Layer communication, it may be found that list is sent to UE1.
Embodiment two
As shown in figure 3, be located within the scope of the same eNB this example show the UE1 for having D2D functions and target UE but
When being different under MME, source UE1 has found the D2D discovery procedures of target UE.To put it more simply, illustrating only target in the schematic diagram
The scene that UE is 1.Wherein, source UE1 is located under the management of source MME1, and target UE2 is located under the management of target MME2.In the mistake
Cheng Zhong, source UE1 and target UE2 use unique D2D of eNB distribution to find its D2D equipment of mark for marking.The process is specific
Step is described as follows：
1) -2) with one step 1-3 of embodiment).
4) it after eNB receives the D2D discovery request messages that source UE1 is sent, finds to identify according to the D2D for the target UE being found
It is associated with the temporary identifier GUTI of the UE.
Wherein, the UE temporary identifiers can be：ENB is the eNB of the unique mark UE in the eNB of UE distribution
UE S1AP ID or MME are that MME UE the S1AP ID or D2D of the unique mark UE in the MME of UE distribution has found mark
Know.
5) eNB sends D2D to source MME1 and finds that request message, the message carry parameter：Temporary identifier (such as the eNB of UE1
UE S1AP ID or MME UE S1AP ID or D2D have found mark or the GUTI of UE1), it is found the GUTI and/or energy of UE
Show to trigger the application identities of the D2D business.
6) source MME1 is found the address of the GUTI information parsing target MME of UE according to the storage received.
7) source MME1 is stored with to each is found the target MME transmission D2D inquiry request messages that UE has found list, should
Message carries parameter：It is found the true identity of the temporary identifier GUTI, UE1 of UE, and/or can be shown that and trigger the D2D business
Application identities.
Wherein, the true identity of the source UE1 can be：The MSISDN of the IMSI or UE1 of UE1.
8) target MME is mapped as the true identity of UE, and the discovery of the UE according to storage according to the GUTI for being found UE
List, judges whether the UE can be found by source UE1.
Optionally, target MME is associated with the application layer identification of the UE.The association can be directed to a certain specific D2D applications.
9) -13) with the step 9-13 of embodiment one).The temporary identifier of target UE herein is GUTI.
Embodiment three
As shown in figure 4, this example show under network share scene, the UE1 and target UE that have D2D functions are located at together
Within the scope of one eNB, but when being different under MME, source UE1 has found the D2D discovery procedures of target UE.To put it more simply, the signal
The scene that target UE is 1 is illustrated only in figure.Wherein, source UE1 is located under the management of source MME1, and target UE2 is located at target
Under the management of MME2.There is special entity in core net to be managed to D2D business, i.e. D2D servers (D2D
Server).The D2D of UE has found that list information is uniformly stored at D2D servers.In this process, source UE1 and target UE2 are equal
Its D2D equipment of mark for marking is found using unique D2D of eNB distribution.The process specific steps are described as follows：
1) -5) with the step 1-5 of embodiment one).
6) D2D discovery request messages are transmitted to source D2D Server by source MME1.The message carries parameter：It is found UE's
Temporary identifier (such as eNB UE S1AP ID or MME UE S1AP ID or D2D have found mark), the addressable of target MME
Location, the true identity of UE1, and/or can be shown that the application identities for triggering the D2D business.
Wherein, the addressable address of the target MME can be：The IP address of target MME or the mark of target MME
Know GUMMEI.
Wherein, the true identity of the source UE1 can be：The MSISDN of the IMSI or UE1 of UE1.
7) D2D Server in source are found the addressable address of the target MME of the discovery list of UE according to the storage received
(IP address or GUMMEI of MME) parses the address of target MME.
8) D2D Server in source are stored with to each is found the target MME transmission D2D inquiry requests that UE has found list
Message, the message carry parameter：Be found UE temporary identifier (such as eNB UES1AP ID or MME UE S1AP ID, or
D2D has found mark), the true identity of UE1, and/or can be shown that the application identities for triggering the D2D business.
Wherein, the true identity of the source UE1 can be：The MSISDN of the IMSI or UE1 of UE1.
9) the D2D inquiry request messages are transmitted to target D2D Server by target MME.
10) target D2D Server are mapped as the true identity of UE according to the temporary identifier for being found UE, and according to storage
The UE discovery list, judge whether the UE can be found by source UE1.
Optionally, target D2D Server are associated with the application layer identification of the UE.The association can be directed to a certain specific D2D
Using.
11) target D2D Server send D2D query response messages to target MME, which carries parameter：It is found mesh
Whether mark UE can be by the application layer identification of instruction and/or target UE that source UE1 has found.
12) target MME forwards D2D query response messages to source D2D Server.
Wherein, D2D Server in source are directed to each UE being found in target UE lists, execute step 8-12 respectively).
13) D2D Server in source are indicated according to the result of each D2D query response messages feedback received, are generated final
The detectable D2D user lists of source UE1.
14) D2D Server in source send D2D to source MME and find that response message, the message carry parameter：It can be sent out by source UE1
Existing user list.Wherein, which can be identified with the temporary identifier of target UE.Preferably, the user list
Each target UE can also be carried and apply layer identification accordingly.
15) source MME forwards the D2D to find response message to eNB.
16) -17) with the step 12-13 of embodiment one).
Example IV
As shown in figure 5, be located within the scope of the same eNB this example show the UE1 for having D2D functions and target UE but
When being different under MME, source UE1 has found the D2D discovery procedures of target UE.To put it more simply, illustrating only target in the schematic diagram
The scene that UE is 1.Wherein, source UE1 is located under the management of source MME1, and target UE2 is located under the management of target MME2.In the mistake
Cheng Zhong, source UE1 and target UE2 use unique D2D of eNB distribution to find mark or the ProSe that D2D Server are distributed
ID identifies its D2D equipment.Unlike embodiment three, in this embodiment, directly carried out between eNB and D2D Server
Communication.
The process specific steps are described as follows：
1) when UE1, UE2 start D2D business, UE1, UE2 carry out D2D certifications and mandate with network respectively.In the process
In, D2D Server are the unique mark ProSe ID of UE distribution one of each acquisition D2D service authorization, and should
ProSe ID inform eNB.Optionally, eNB is that the UE of each acquisition D2D service authorization distributes a unique D2D discoveries ID.
2) source UE1 carries out D2D equipment and finds flow.In this process, source UE1 can receive the target UE being found and send
D2D find ID or ProSe ID.Before this step, eNB may need the broadcast of all UE into cell to be found for D2D
Physical layer configurations information.
3) source UE1 sends D2D to eNB and finds that request message, the message carry parameter：What what source UE1 was received be found
The D2D of target UE has found mark or ProSe ID lists, the identity of UE1 (D2D of such as UE1 has found ID or ProSe ID,
Or C-RNTI etc.), and/or can be shown that the D2D application identities for triggering the D2D business.
4) eNB receive source UE1 transmissions D2D find request message after, D2D that each target UE being found is connected
The addressable address of Server is associated with.Wherein, the addressable address of the D2D Server is the IP address of MME.
5) eNB sends D2D to source D2D Server and finds that request message, the message carry parameter：The temporary identifier of UE1
(such as D2D has found mark or ProSe ID) is found the interim ID (D2D has found mark or ProSe ID) of UE, stores quilt
It was found that the addressable address (such as IP address of D2D Server) of the D2D Server of the discovery list of UE, and/or can be shown that
Trigger the application identities of the D2D business.
6) D2D Server in source are found seeking for the target D2DServer of the discovery list of UE according to the storage received
Location address (IP address of D2D Server) parses the address of target D2D Server.
7) D2D Server in source are stored with to each is found UE and finds that the target D2D Server of list send D2D and look into
Request message is ask, which carries parameter：It is found the temporary identifier (such as D2D has found mark or ProSe ID) of UE, UE1
True identity, and/or can be shown that trigger the D2D business application identities.
Wherein, the true identity of the source UE1 can be：The MSISDN of the IMSI or UE1 of UE1.
8) target D2D Server are mapped as the true identity of UE according to the temporary identifier for being found UE, and according to storage
The discovery list of the UE, judges whether the UE can be found by source UE1.
Optionally, target D2D Server are associated with the application layer identification of the UE.The association can be directed to a certain specific D2D
Using.
9) target D2D Server send D2D query response messages to source D2D Server, which carries parameter：It is sent out
Whether existing target UE can be by the application layer identification of instruction and/or target UE that source UE1 has found.
Wherein, D2D Server in source are directed to each UE being found in target UE lists, execute step 7-9 respectively).
10) D2D Server in source are indicated according to the result of each D2D query response messages feedback received, are generated final
The detectable D2D user lists of source UE1.
11) D2D Server in source send D2D to eNB and find that response message, the message carry parameter：It can be found by source UE1
User list.Wherein, which can be identified with the temporary identifier of target UE.Preferably, the user list is also
Each target UE can be carried and apply layer identification accordingly.
12-13) with the step 12-13 of embodiment one).
Embodiment five
As shown in fig. 6, this example show the source UE1 for having D2D functions and target UE2 to be located at the same eNB ranges
Process interior but when being different under MME, that source UE1 and target UE2 have found mutually.Wherein, source UE1 is located at the management of source MME1
Under, target UE2 is located under the management of target MME2.In this process, source UE1 and target UE2 uses the unique of eNB distribution
D2D has found its D2D equipment of mark for marking.The process specific steps are described as follows：
1) -2) with one step 1-2 of embodiment).
3) source UE1 and target UE2 sends D2D to eNB respectively and finds that request message, the message carry parameter：Source UE is received
To the D2D of the target UE being found find identification list, (D2D of such as UE has found ID or C-RNTI for the identity of source UE
Deng), and/or can be shown that the D2D application identities for triggering the D2D business.
4) after eNB receives the D2D discovery request messages that source UE1 and target UE2 are sent, according to source UE1's and target UE2
D2D has found that mark is respectively associated with its temporary identifier.ENB is also needed the addressable address of the target UE2 MME connected and Qi Guan
Connection.
Wherein, the UE temporary identifiers can be：ENB is the eNB of the unique mark UE in the eNB of UE distribution
UE S1AP ID or MME are that MME UE the S1AP ID or D2D of the unique mark UE in the MME of UE distribution has found mark
Know.
Wherein, the addressable address of the MME includes：The IP address or MME of MME identifies GUMMEI.
5) eNB sends D2D to source MME1 and finds that request message, the message carry parameter：Temporary identifier (such as the eNB of UE1
UE S1AP ID or MME UE S1AP ID or D2D has found mark), the interim ID of target UE2 (such as eNB UE S1AP ID
Or MME UE S1AP ID or D2D have found mark), the addressable address of the target MME2 of the discovery list of storage target UE2
(such as IP address or GUMMEI of MME2), and/or can be shown that the application identities for triggering the D2D business.
6) source MME1 is found the addressable address (IP of MME of the MME of the discovery list of UE according to the storage that receives
Location or GUMMEI) parsing target MME2 address.
7) source MME1 sends D2D inquiry request messages to target MME2, which carries parameter：Temporary identifier (the example of UE2
As eNB UE S1AP ID or MME UE S1AP ID or D2D have found mark), the true identity of UE1, and/or can be shown that tactile
Send out the application identities of the D2D business.
Wherein, the true identity of the source UE1 can be：The MSISDN of the IMSI or UE1 of UE1.
8) target MME2 is mapped as the true identity of UE2, and the discovery of the UE2 according to storage according to the temporary identifier of UE2
List, judges whether UE2 can be found by UE1.
Optionally, target MME2 is associated with the application layer identification of UE2.The association can be directed to a certain specific D2D applications.
9) target MME2 sends D2D query response messages to source MME1, which carries parameter：The true identity of UE2,
Whether UE2 can be by the UE1 instructions found and/or the application layer identification of UE2.
10) source MME1 retrieves the discovery list of the UE1 of oneself preservation, root according to the true identity of the target UE2 received
Judge whether UE1 can be found by UE2 according to the discovery list.Source MME1 generates the discovery list of UE1 and UE2 respectively.
11) source MME1 sends D2D to eNB and finds that response message, the message carry parameter：The discovery list of source UE1, target
The discovery list of UE2.Wherein, the discovery list can be identified with the temporary identifier of UE.Preferably, the discovery
List can also carry UE and apply layer identification accordingly.
12) eNB sends D2D to source UE1 and target UE2 respectively and finds that response message, the message carry parameter：Source UE1 or
The discovery list of target UE2.Wherein, the discovery list can be identified with the temporary identifier of UE.Preferably, described
It was found that list can also carry UE applies layer identification accordingly.
13) source UE1 and target UE2 stores the discovery list received respectively.
Optionally, source UE1 and target UE2 reports the application layer identification for the UE that can be found accordingly to application layer respectively.
In this process, corresponding application layer ID filterings may be carried out.
In step 11), 12) in, source MME1 can not also send the application layer ID that be found UE to UE1 and UE2.At this point,
Application layer ID lists can be sent to corresponding application server AS (Application Server) by source MME1, by AS and
By application layer communication between UE, AS will be seen that list is sent to UE1.
Target UE in the embodiment may be multiple.
Embodiment six
As shown in fig. 7, since temporary identifier has timeliness, when eNB is that UE is distributed when D2D has found ID or UE is moved again
When moving to a new eNB, eNB needs to send newer D2D discoveries to core network entity (MME or D2D Server etc.) in real time
ID。
Embodiment seven
As shown in figure 8, when core network entity be when UE distributes ProSe ID or GUTI again or UE be moved to one it is new
MME when, MME needs new ProSe ID or GUTI are sent to eNB in real time.When updating temporary identifier, UE need to be in connection
State.
In above-mentioned all embodiments, source UE and target UE can also be located under different eNB.At this point, source eNB can be to
The address information for the target MME that target eNB request targets UE is connected.
In addition, as shown in figure 9, to additionally provide that the present invention also provides a kind of direct-connected communication targets in the embodiment of the present invention whole
The inquiry unit of client information, the device mainly includes the D2D in radio reception device to find that request unit and D2D find name
Single issuance unit,
The D2D has found request unit, when for knowing that the source terminal under this radio reception device finds target terminal, to
Source network entity sends D2D and finds that request message, the D2D find to carry the mesh that the target terminal is connected in request message
Mark the address information and source terminal mark of network entity；
The D2D has found list issuance unit, the D2D discovery lists sent for receiving the source network entity, and under
Issue the source terminal.
Further, the D2D has found request unit, and the request message for being sent according to the source terminal knows institute
It states source terminal and finds target terminal, wherein the request message includes：It is whole in the target that D2D discovery procedures receive
The D2D at end has found the target network entity information that mark or Prose ID and/or the target terminal are connected.
Further, the D2D has found request unit, the target network entity for being connected the target terminal
Address information is associated；And the Target Wireless access device accessed when the target terminal and the source wireless access
When equipment difference, the address for the target network entity that the target terminal connected is asked to be believed to the Target Wireless access device
Breath.
Further, described device further includes that the D2D in radio reception device has found mark distribution and updating unit,
The D2D has found mark distribution and updating unit, for finding to identify for terminal distribution D2D and notifying the terminal
The network entity connected；And find that mark or terminal are moved to one and new wireless connect again for terminal distribution D2D
When entering equipment, the network entity connected to the terminal sends the newer D2D discovery marks of the terminal.
In addition, as shown in Figure 10, the present invention also provides a kind of inquiry unit of direct-connected communication target end message, the dresses
Main D2D inquiry requests unit and D2D inquiry response units including in network entity are set,
The D2D inquiry requests unit, when the D2D for receiving radio reception device transmission has found request message, root
The address information that the target network entity that the target terminal carried in request message is connected is found according to the D2D, to the mesh
It marks network entity and sends D2D inquiry request messages, the source terminal mark and the mesh are carried in the D2D inquiry request messages
Mark terminal iidentification；And receive the D2D query response messages that the target network entity returns；
The D2D inquiry responses unit, for receive source network entity transmission D2D inquiry request messages when, inquiry
The information of the target terminal, and query result is returned to by the source network entity by D2D query response messages.
Further, the D2D inquiry responses unit, for locally or to D2D servers inquiring the target end
The D2D at end has found list, finds whether target terminal described in list query can be by source end according to the D2D of the target terminal
Whether end finds and/or it can be found that the source terminal, and query result is returned to institute by the D2D query response messages
State source network entity.
Further, the D2D inquiry requests unit, when being additionally operable to receive the D2D discoveries request message, according to institute
It states D2D and finds that the temporary identifier of the source terminal carried in request message inquires the true identity of the source terminal；And
It is sent in the D2D inquiry request messages of the target network entity and carries the true identity of the source terminal, the mesh
Mark the temporary identifier of terminal；
The D2D inquiry responses unit, when being additionally operable to receive the D2D inquiry request messages, according to target end
The temporary identifier at end inquires the true identity of the target terminal, and is looked into the D2D for returning to the source network entity
Ask the true identity for including the target terminal in response message.
Further, the D2D inquiry requests unit is additionally operable to according to the D2D query response messages received, raw
List and/or it can be found that the source terminal are found at the list of target terminal true identity, and/or the detectable D2D of source terminal
D2D find list, be sent to radio reception device.
Further, the D2D inquiry requests unit, when being additionally operable to receive the D2D query response messages, according to institute
The true identity for stating target terminal finds list in the D2D for locally or to D2D servers inquiring the source terminal, judges institute
Whether whether state source terminal can be found by the target terminal and/or it can be found that the target terminal, and generate the target
The detectable D2D of terminal finds list and/or it can be found that the D2D of the target terminal has found list.
Further, described device further includes terminal iidentification distribution and the updating unit in network entity,
Terminal iidentification distribution and updating unit, for being terminal distribution ProSe ID or GUTI, and for terminal
Terminal distribution ProSe ID or GUTI is assigned as or when terminal is moved to a new network entity, to the terminal
Radio reception device sends the newer ProSe ID or GUTI of the terminal.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, and the present invention program is not
It is limited to 802.16 systems of IEEE, its associative mode can be applied in other wireless communication systems.For the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein
The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
Claims (22)
1. a kind of querying method of direct-connected communication target end message, which is characterized in that when source terminal finds target terminal,
The source radio reception device that the source terminal is accessed sends direct-connected communication D2D to source network entity and finds request message,
The D2D has found to carry the address information and source terminal mark of the target network entity that the target terminal is connected in request message
Know；
The source network entity sends D2D inquiries according to the address information of the target network entity to the target network entity
Request message carries the source terminal mark and target terminal mark in the D2D inquiry request messages；
The target network entity inquires the information of the target terminal, and is returned query result by D2D query response messages
Back to the source network entity.
2. the method as described in claim 1, which is characterized in that
The target network entity inquires the information of the target terminal, including：
The target network entity finds list in the D2D for locally or to D2D servers inquiring the target terminal, according to institute
The D2D for stating target terminal has found whether target terminal described in list query can be found by the source terminal and/or whether can send out
The existing source terminal, and query result is returned into the source network entity by the D2D query response messages.
3. method as claimed in claim 2, which is characterized in that
The target terminal that the source terminal is found includes one or more；
The source network entity generates the source terminal according to the D2D query response messages received, for the source terminal
Detectable D2D finds list and/or it can be found that the D2D of the source terminal has found list.
4. method as claimed in claim 1,2 or 3, which is characterized in that the source radio reception device is real to the source network
Before body sends D2D discovery request messages, further include：
The source terminal sends request message to the source radio reception device, and the request message includes：It was found in D2D
The D2D for the target terminal that journey receives has found the target that mark or Prose ID and/or the target terminal are connected
Network entity information.
5. method as claimed in claim 4, which is characterized in that
The address information for the target network entity that the target terminal is connected is associated by the source radio reception device；
When the Target Wireless access device that the target terminal is accessed is with the source radio reception device difference, the source is wireless
Access device asks the address information of target network entity that the target terminal connected to the Target Wireless access device.
6. the method as described in claim 1, which is characterized in that
The source terminal identifies：The temporary identifier of the source terminal；
When the source network entity receives the D2D discoveries request message, inquired according to the temporary identifier of the source terminal
The true identity of the source terminal；
In the D2D inquiry request messages that the source network entity is sent to the target network entity, including：The source is whole
The temporary identifier of the true identity at end, the target terminal.
7. method as claimed in claim 6, which is characterized in that
The temporary identifier includes：The D2D of terminal find mark either eNB be terminal distribution eNB UE S1AP ID or
MME be terminal distribution MME UE S1AP ID either network entity be terminal distribution ProSe ID or terminal
GUTI；
The true identity, including：The IMSI or MSISDN of terminal.
8. method as claimed in claim 6, which is characterized in that
When the target network entity receives the D2D inquiry request messages, looked into according to the temporary identifier of the target terminal
The true identity of the target terminal is ask, and is wrapped in the D2D query response messages for returning to the source network entity
True identity containing the target terminal.
9. method as claimed in claim 8, which is characterized in that
The target terminal that the source terminal is found includes one or more；
The source network entity is true for source terminal generation target terminal according to the D2D query response messages received
Real identification list.
10. method as claimed in claim 6, which is characterized in that the method further includes：
When the source network entity receives the D2D query response messages, according to the true identity of the target terminal, at this
Ground or the D2D that the source terminal is inquired to D2D servers have found list, judge whether the source terminal can be by target end
Whether end find and/or it can be found that the target terminal, and generate the detectable D2D of the target terminal find list and/
Or it can be found that the D2D of the target terminal has found list.
11. such as any one of them method of claim 1,2,3,6 or 7, which is characterized in that the method further includes：
When radio reception device is that terminal distribution D2D has found that mark or terminal are moved to a new wireless access and set again
When standby, the network entity that radio reception device is connected to the terminal sends the newer D2D discovery marks of the terminal.
12. such as any one of them method of claim 1,2,3,6 or 7, which is characterized in that the method further includes：
When network entity is moved to a new network entity for terminal distribution ProSe ID or GUTI or terminal again,
The network entity sends the newer ProSe ID or GUTI of the terminal to the radio reception device of the terminal.
13. a kind of inquiry unit of direct-connected communication target end message, which is characterized in that including the D2D in radio reception device
It was found that request unit and D2D have found list issuance unit,
The D2D has found request unit, when for knowing that the source terminal under this radio reception device finds target terminal, to source net
Network entity sends D2D and finds that request message, the D2D find to carry the target network that the target terminal is connected in request message
The address information and source terminal of network entity identify；
The D2D has found list issuance unit, finds list for receiving the D2D that the source network entity is sent, and be handed down to
The source terminal.
14. device as claimed in claim 13, which is characterized in that
The D2D has found request unit, the request message for being sent according to the source terminal, knows that the source terminal finds mesh
Mark terminal, wherein the request message includes：Mark is found in the D2D for the target terminal that D2D discovery procedures receive
Or the target network entity information that Prose ID and/or the target terminal are connected.
15. device according to claim 13 or 14, which is characterized in that
The D2D has found that request unit, the address information of the target network entity for being connected the target terminal carry out
Association；And when Target Wireless access device that the target terminal is accessed is with source radio reception device difference, to described
Target Wireless access device asks the address information for the target network entity that the target terminal connected.
16. device according to claim 13 or 14, which is characterized in that described device further includes in radio reception device
D2D has found mark distribution and updating unit,
The D2D has found mark distribution and updating unit, for finding to identify by terminal distribution D2D and notifying the terminal even
The network entity connect；And find that mark or terminal are moved to a new wireless access and set again for terminal distribution D2D
When standby, the network entity connected to the terminal sends the newer D2D discovery marks of the terminal.
17. a kind of inquiry unit of direct-connected communication target end message, which is characterized in that including the D2D inquiries in network entity
Request unit, D2D inquiry response units,
The D2D inquiry requests unit, when the D2D for receiving radio reception device transmission has found request message, according to institute
The address information for stating the target network entity that D2D has found that the target terminal carried in request message is connected, to the target network
Network entity sends D2D inquiry request messages, and source terminal mark and the target terminal mark are carried in the D2D inquiry request messages
Know；And receive the D2D query response messages that the target network entity returns；
The D2D inquiry responses unit, when D2D inquiry request messages for receiving source network entity transmission, described in inquiry
The information of target terminal, and query result is returned to by the source network entity by D2D query response messages.
18. device as claimed in claim 17, which is characterized in that
The D2D inquiry responses unit, for finding row in the D2D for locally or to D2D servers inquiring the target terminal
Table finds whether target terminal described in list query can be found by the source terminal and/or be according to the D2D of the target terminal
It is no it can be found that the source terminal, and query result is returned into the source network entity by the D2D query response messages.
19. device as claimed in claim 17, which is characterized in that
The D2D inquiry requests unit when being additionally operable to receive the D2D discoveries request message, finds to ask according to the D2D
The temporary identifier of the source terminal carried in message inquires the true identity of the source terminal；And it is being sent to the target
The true identity of the source terminal, the interim mark of the target terminal are carried in the D2D inquiry request messages of network entity
Know；
The D2D inquiry responses unit, when being additionally operable to receive the D2D inquiry request messages, according to the target terminal
Temporary identifier inquires the true identity of the target terminal, and inquires and ring in the D2D for returning to the source network entity
Answer the true identity for including the target terminal in message.
20. the device as described in claim 18 or 19, which is characterized in that
The D2D inquiry requests unit is additionally operable to, according to the D2D query response messages received, it is true to generate target terminal
Real identification list, and/or the detectable D2D of source terminal find list and/or it can be found that the D2D of the source terminal has found name
It is single, it is sent to radio reception device.
21. device as claimed in claim 20, which is characterized in that
The D2D inquiry requests unit, when being additionally operable to receive the D2D query response messages, according to the target terminal
True identity finds list in the D2D for locally or to D2D servers inquiring the source terminal, whether judges the source terminal
It can be found by the target terminal and/or whether it can be found that the target terminal, and it is detectable to generate the target terminal
D2D finds list and/or it can be found that the D2D of the target terminal has found list.
22. the device as described in claim 17,18 or 19, which is characterized in that described device further includes the end in network entity
End mark distribution and updating unit,
Terminal iidentification distribution and updating unit, for being terminal distribution ProSe ID or GUTI, and for terminal distribution
When being moved to a new network entity for terminal distribution ProSe ID or GUTI or terminal, to the wireless of the terminal
Access device sends the newer ProSe ID or GUTI of the terminal.
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| CN201210387077.XA CN103731902B (en) | 2012-10-12 | 2012-10-12 | The querying method and device of direct-connected communication target end message |
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| EP3140980B1 (en) * | 2014-05-09 | 2020-08-19 | Sony Corporation | System, base station, and method of enabling usage of resources for a device-to-device discovery |
| CN105101151B (en) * | 2014-05-12 | 2019-06-07 | 华为技术有限公司 | Cancel the method and apparatus of service authorization in short-range communication |
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| US9713179B2 (en) | 2014-06-27 | 2017-07-18 | Alcatel Lucent | Configuration of layer-1 destination address for device-to-device communications |
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