CN103731902A - Method and device for inquiring direct connection communication target terminal information - Google Patents
Method and device for inquiring direct connection communication target terminal information Download PDFInfo
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Abstract
The invention discloses a method and device for inquiring direct connection communication target terminal information. When a source terminal finds a target terminal, a source wireless access device which the source terminal has access sends D2D finding request information to a source network entity, and address information of a target network entity connected with the target terminal and source terminal identifications are carried; the source network entity sends D2D inquiring request information to the target network entity according to the address information of the target network entity, and the source terminal identifications and target terminal identifications are carried; the target network entity inquires the information of the target terminal, and returns inquiring results back to the source network entity through D2D inquiring response information. By means of the method and device, a found list of a found D2D device can be inquired, and therefore a final found list can be generated to be supplied to the D2D device at a finding terminal.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of querying method and device of direct-connected communication target end message.
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 communicating between the terminal equipment of multiple support D2D functions.D2D technology has been broken 3GPP (3rd Generation Partnership Project before, third generation partner program) definition Long Term Evolution (Evolved Package System, referred to as EPS) in system, two restrictions that wireless terminal device must just can communicate by base station or radio reception device.Thereby can reduce system resource and take, increase frequency spectrum efficiency of cellular communication system, reduce terminal transmitting power consumption, and save to a great extent network operation cost.
The system architecture diagram of the D2D technology based on Cellular Networks as shown in Figure 1, comprises that two can be carried out mutually D2D and find the UE communicating by letter with D2D, the radio reception device that UE is connected to, and the network equipment and Home Environment.Wherein, radio reception device can be the eNB (Node B of evolution) of 3GPP definition, or non-3GPP access (as WLAN); The network equipment can be equipment of the core network as Mobility Management Entity (Mobile Management Entity is called for short MME), neighbours' discovery server, or the D2D server of special definition etc.; Home Environment can comprise home subscriber server (Home Subscriber Server, referred to as HSS), application server, grouped data network gateway (Packet Data Network Gateway, referred to as P-GW) etc.
D2D technology comprises that D2D finds to communicate by letter with D2D two parts.Wherein, D2D finds to refer to when near distance is to can direct communication between wireless device time, can find each other the other side between wireless terminal device; D2D communication refers to that two wireless terminal devices, after finding the other side, directly do not communicate by core net.
D2D equipment, before carrying out D2D communication, need to first complete the discovery of other D2D equipment to closing on.D2D finds to refer to that a D2D equipment can and identify the features such as its identity by one or more other its existence of D2D device discovery.Current D2D discover method is mainly the identity information that is found to hold D2D device broadcasts oneself, finds that end D2D equipment carries out the search of corresponding D2D equipment identity information, the D2D identity information receiving is identified, thereby completed the discovery procedure of D2D equipment.
Before the discovery procedure of D2D equipment, network can be the identity of D2D sign of D2D devices allocation in order to this D2D equipment of unique identification.This D2D sign can be that the D2D that radio reception device (for example eNB) distributes finds sign (D2D Discovery ID), or the ProSe ID such as, being distributed by core network element (MME or D2D Server etc.).In the discovery procedure of D2D equipment, the D2D that is found to hold D2D equipment can notice oneself identifies to finding end D2D equipment.A series of D2D signs that are found to hold D2D equipment of finding that end D2D equipment can receive oneself and own D2D identify and report network, by the mapping relations of network based D2D sign and UE, retrieve network the discovery end D2D equipment of preserving and the discovery list information that is found to hold D2D equipment.This discovery list information has stipulated which UE this UE can find, and which UE this UE can be found by, can not be found by which UE etc.Network based this discovery list information, judges and finds whether end D2D equipment can find to be found to hold D2D equipment, and is found to hold D2D equipment list and relevant information to inform discovery end D2D equipment detectable.
The network entity of storage D2D device discovery list is generally core network element such as MME, HSS or D2D server etc.In the discovery procedure of above-mentioned D2D equipment, be probably found to hold D2D equipment and find that end D2D equipment is positioned under different MME or D2D server admin, be found end and find that the D2D of end finds that list is not kept at same place.Now, how inquiring about the discovery list that is found to hold D2D equipment, thereby judge whether discovery end D2D equipment can be found to be found to hold D2D equipment, is the problem that needs solution in prior art.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of querying method and device of direct-connected communication target end message, can inquire the discovery list that is found D2D equipment, thereby generates final discovery list to finding end.
For solving the problems of the technologies described above, the invention provides a kind of querying method of direct-connected communication target end message, when source terminal is found target terminal,
The source radio reception device that described source terminal accesses sends direct-connected communication (D2D) to source network entity and finds request message, and described D2D finds to carry in request message address information and the source terminal sign of the target network entity that described target terminal connects;
Described source network entity sends D2D inquiry request message according to the address information of described target network entity to described target network entity, carries described source terminal sign and described target terminal sign in described D2D inquiry request message;
Described target network entity is inquired about the information of described target terminal, and by D2D query response message, Query Result is returned to described source network entity.
Further, described target network entity is inquired about the information of described target terminal, comprising:
Described target network entity is found list in this locality or to the D2D of target terminal described in D2D server lookup, according to target terminal described in the D2D discovery list query of described target terminal, whether can by described source terminal, be found and/or whether can find described source terminal, and Query Result is returned to described source network entity by described D2D query response message.
Further, the described target terminal that described source terminal is found comprises one or more;
Described source network entity, according to the described D2D query response message receiving, is found list and/or can be found that the D2D of described source terminal finds list for described source terminal generates the detectable D2D of described source terminal.
Further, described source radio reception device also comprises before sending D2D discovery request message to described source network entity:
Described source terminal sends a request message to described source radio reception device, described request message comprises: the D2D of the described target terminal receiving in D2D discovery procedure finds sign or Prose ID, and/or the target network entity information that connects of described target terminal.
The address information of the target network entity that further, described source radio reception device connects described target terminal is carried out association;
When the Target Wireless access device that described target terminal accesses is different from described source radio reception device, the address information of the target network entity that described source radio reception device connects to target terminal described in the request of described Target Wireless access device.
Further, described source terminal sign comprises: the temporary mark of described source terminal;
When described source network entity receives described D2D discovery request message, according to the temporary mark of described source terminal, inquire the true identity of described source terminal;
In the described D2D inquiry request message that described source network entity sends to described target network entity, comprising: the true identity of described source terminal, the temporary mark of described target terminal.
Further, described temporary mark comprises: the D2D of terminal finds sign, or the eNB eNB UE S1AP ID that is terminal distribution, or the MME MME UE S1AP ID that is terminal distribution, or the ProSe ID that network entity is terminal distribution, or the GUTI of terminal;
Described true identity, comprising: the IMSI of terminal, or MSISDN.
Further, when described target network entity receives described D2D inquiry request message, according to the temporary mark of described target terminal, inquire the true identity of described target terminal, and the true identity that comprises described target terminal in the described D2D query response message that returns to described source network entity.
Further, the described target terminal that described source terminal is found comprises one or more;
Described source network entity is according to the described D2D query response message receiving, for described source terminal generates the list of target terminal true identity.
Further, described method also comprises:
When described source network entity receives described D2D query response message, according to the true identity of described target terminal, in this locality or to the D2D of source terminal described in D2D server lookup, find list, judge whether described source terminal can be found by described target terminal and/or whether can find described target terminal, and generate the D2D discovery list that the detectable D2D of described target terminal finds list and/or can find described target terminal.
Further, described method also comprises:
When radio reception device is found sign or fast mobile terminal to new radio reception device for terminal distribution D2D again, the D2D that the network entity that radio reception device connects to described terminal sends the renewal of described terminal finds sign.
Further, described method also comprises:
When network entity is terminal distribution ProSe ID or GUTI or fast mobile terminal to new network entity again, described network entity sends ProSe ID or the GUTI of the renewal of described terminal to the radio reception device of described terminal.
The present invention also provides a kind of inquiry unit of direct-connected communication target end message, comprises that D2D in radio reception device finds request unit, and D2D finds that list issues unit,
Described D2D finds request unit, while being used for knowing the source terminal discovery target terminal under this radio reception device, to source network entity, send D2D and find request message, described D2D finds to carry in request message address information and the source terminal sign of the target network entity that described target terminal connects;
Described D2D finds that list issues unit, the D2D discovery list sending for receiving described source network entity, and be handed down to described source terminal.
Further, described D2D finds request unit, for the request message sending according to described source terminal, know described source terminal discovery target terminal, wherein, described request message comprises: the D2D of the described target terminal receiving in D2D discovery procedure finds sign or Prose ID, and/or the target network entity information that connects of described target terminal.
Further, described D2D finds request unit, for the address information of target network entity that described target terminal is connected, carries out association; And, when the Target Wireless access device that accesses when described target terminal is different from described source radio reception device, the address information of the target network entity connecting to target terminal described in the request of described Target Wireless access device.
Further, described device also comprises that the D2D in radio reception device finds sign distribution and updating block,
Described D2D finds sign distribution and updating block, is used to terminal distribution D2D to find the network entity that identifies and notify described terminal to connect; And while again finding sign or fast mobile terminal to new radio reception device for terminal distribution D2D, the D2D that the network entity connecting to described terminal sends the renewal of described terminal finds sign.
In addition, the present invention also provides a kind of inquiry unit of direct-connected communication target end message, comprises the D2D inquiry request unit in network entity, D2D inquiry response unit,
Described D2D inquiry request unit, while finding request message for receiving the D2D of radio reception device transmission, the address information of the target network entity connecting according to the target terminal carrying in described D2D discovery request message, to described target network entity, send D2D inquiry request message, in described D2D inquiry request message, carry described source terminal sign and described target terminal sign; And receive the D2D query response message that described target network entity is returned;
Described D2D inquiry response unit, when receiving the D2D inquiry request message that source network entity sends, the information of inquiring about described target terminal, and Query Result is returned to described source network entity by D2D query response message.
Further, described D2D inquiry response unit, for finding list in this locality or to the D2D of target terminal described in D2D server lookup, according to target terminal described in the D2D discovery list query of described target terminal, whether can by described source terminal, be found and/or whether can find described source terminal, and Query Result is returned to described source network entity by described D2D query response message.
Further, described D2D inquiry request unit, also when receiving described D2D and find request message, finds that according to described D2D the temporary mark of the described source terminal carrying in request message inquires the true identity of described source terminal; And carry the true identity of described source terminal, the temporary mark of described target terminal in the described D2D inquiry request message that sends to described target network entity;
Described D2D inquiry response unit, also when receiving described D2D inquiry request message, according to the temporary mark of described target terminal, inquire the true identity of described target terminal, and the true identity that comprises described target terminal in the described D2D query response message that returns to described source network entity.
Further, described D2D inquiry request unit, the described D2D query response message also receiving for basis, generating the detectable D2D of target terminal true identity list and/or source terminal finds list and/or can find that the D2D of described source terminal finds list, sends to radio reception device.
Further, described D2D inquiry request unit, also when receiving described D2D query response message, according to the true identity of described target terminal, in this locality or to the D2D of source terminal described in D2D server lookup, find list, judge whether described source terminal can be found by described target terminal and/or whether can find described target terminal, and generate the D2D discovery list that the detectable D2D of described target terminal finds list and/or can find described target terminal.
Further, described device also comprises that the terminal iidentification in network entity distributes and updating block,
Described terminal iidentification distributes and updating block, be used to terminal distribution ProSe ID or GUTI, and when for terminal distribution being terminal distribution ProSe ID or GUTI or fast mobile terminal to new network entity, to the radio reception device of described terminal, send ProSe ID or the GUTI of the renewal of described terminal.
By scheme of the present invention, can realize inquiry and the decision-making judgement of the D2D of source UE and object UE being found to list, thereby generate final discovery list, the D2D discovery procedure of completing user.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the model of D2D system architecture in a kind of wireless communication system;
Fig. 2 shows D2D in the wireless communication system of the embodiment of the present invention and finds the schematic diagram of flow process;
Fig. 3 shows D2D in the wireless communication system of another embodiment and finds the schematic diagram of flow process;
Fig. 4 shows D2D in the wireless communication system of another embodiment and finds the schematic diagram of flow process;
Fig. 5 shows D2D in the wireless communication system of another embodiment and finds the schematic diagram of flow process;
Fig. 6 shows D2D in the wireless communication system of another embodiment and finds the schematic diagram of flow process;
The D2D that Fig. 7 shows the embodiment of the present invention finds the more schematic diagram of new technological process of ID;
Fig. 8 shows ProSe ID or the more schematic diagram of new technological process of GUTI 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.
Embodiment
Present embodiment provides the querying method of D2D target terminal information in a kind of wireless communication system, specifically adopts following scheme:
Source radio reception device sends D2D to source network entity and finds request message, and this message is carried the indication information of target network entity address;
Source network entity sends D2D inquiry request message according to this address indication information receiving to target network entity;
The relevant information (as information such as the discovery lists of object UE) of target network entity query aim UE, and send D2D query response message to source network entity, return to Query Result.
Wherein, described radio reception device is: eNB, or WLAN access device.
Described source network entity and target network entity are: MME, or D2D server, or 3GPPAAA server.
Wherein, before sending D2D discovery request message to source network entity at source radio reception device, source radio reception device receives the D2D discovery request message that source UE sends, the D2D that this message is carried the object UE that object UE that source UE receives sends finds identification list or ProSe ID list, and/or the target eNB sign that connects of object UE; If the target network entity that object UE connects is different from the network entity that source UE connects, the address indication information of the target network entity that source radio reception device connects object UE carries out association.If the eNB that object UE connects and source eNB are not identical, the address information of the target MME that source eNB can connect to target eNB request target UE.
Wherein, the information of the indicating target network entity address that the D2D discovery request message that described source radio reception device sends to source network entity carries can be: the IP address of target network entity, or the GUMMEI of target network entity, or the GUTI value of object UE.
Wherein, the D2D that described source radio reception device sends to source network entity finds that request message also carries parameter: the temporary mark of source UE and object UE.Described temporary mark can be: the D2D of source UE finds sign, or eNB is the eNB UE S1AP ID that this UE distributes, or MME is the MME UE S1AP ID that this UE distributes, or network entity is the ProSe ID that UE distributes, or the GUTI of UE.
Wherein, when eNB finds during ID for UE distributes D2D again, or eNB is while moving to a new eNB, and eNB needs to core network entity (MME or D2D Server etc.), to send the D2D upgrading in real time and finds ID.
Wherein, when core network entity distributes ProSe ID or GUTI for UE again, or UE is while moving to a new MME, and MME needs to eNB, send new ProSe ID or GUTI in real time.
Wherein, described source network entity also comprises before sending D2D inquiry request message to target network entity: source network entity, according to the temporary mark of the source UE receiving, is retrieved the true identity of source UE.Described true identity is: the IMSI of UE, or the MSISDN of UE.
Wherein, the D2D inquiry request message that described source network entity sends to target network entity carries parameter: the true identity of source UE, the temporary mark of object UE.When the temporary mark of described object UE is eNB UE S1AP ID, also need to carry the correlated identities of eNB.
Wherein, before the discovery list of the described relevant UE of target network entity inquiry, also comprise: objective network is according to the temporary mark of the object UE receiving, the true identity of searched targets UE, and find list according to the D2D of the true identity query aim UE of object UE, according to this discovery list, judge described source UE be found and/or whether can be found to object UE whether can by source UE.
Wherein, the D2D query response message that described target network entity sends to source network entity also carries parameter: the application layer sign of object UE, and/or the true identity of object UE.
Wherein, if the D2D that source network entity receives finds request and comprises the temporary mark of the object UE that multiple source network entity that connect from source UE are different, source network entity sends D2D inquiry request message to target network entity respectively, and gathering the result indication of carrying in the D2D query response message receiving, the final D2D that forms source UE finds list and/or can find that the D2D of described source UE finds list.
Wherein, source network entity receives after the D2D inquiry response of target network entity transmission, source network entity is according to the true identity of the object UE of carrying in this message, retrieve the discovery list of the source UE oneself preserving, according to this discovery list, judge whether source UE can be found by object UE and/or whether can find described object UE, and then generate the D2D discovery list that the detectable D2D of object UE finds list and/or can find described object UE.Further, source network entity generates respectively the discovery list of source UE and object UE; Source network entity finds that by the D2D of source UE list sends to source UE, and the D2D of object UE is found to list sends to object UE.
For the ease of setting forth the present invention, below with reference to drawings and the specific embodiments, the enforcement of technical solution of the present invention is described in further detail.It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
Embodiment mono-
As shown in Figure 2, the present embodiment shows possesses the UE1 of D2D function and but object UE is positioned at same eNB scope different lower times of MME, and source UE1 finds the D2D discovery procedure of object UE.In order to simplify, in this schematic diagram, only show object UE and be the scene of 1.Wherein, source UE1 is positioned under the management of source MME1, and object UE 2 is positioned under the management of target MME2.In this process, source UE1 and object UE 2 are all used unique D2D that eNB distributes to find its D2D equipment of mark for marking.These process concrete steps are described below:
1) when UE1, UE2 start D2D business, UE1, UE2 carry out D2D authentication and authorization with network respectively.In this process, eNB is each unique D2D discovery ID of UE distribution that obtains D2D service authorization.Alternatively, eNB finds that by this D2D ID reports MME.
2) source UE1 carries out D2D device discovery flow process.In this process, source UE1 can receive the D2D discovery ID that found object UE sends.Before this step, eNB may need the physical layer configurations information of finding for D2D to all UE broadcast in community.
3) source UE1 sends D2D to eNB and finds request message, this message is carried parameter: the D2D of the found object UE that source UE1 receives finds identification list, the identify label of UE1 is (as the D2D of UE1 finds ID, or C-RNTI etc.), and/or can show to trigger the D2D application identities of this D2D business.
4) eNB receives that the D2D that source UE1 sends finds after request message, and the D2D of object UE is found to sign is mapped as the temporary mark of this UE that MME can identify;
ENB also needs the addressable address of the MME that each found object UE is connected associated with it.
Wherein, described UE temporary mark can be: eNB is the eNB UE S1AP ID of this UE of unique identification in this eNB that this UE distributes, or MME is the MME UE S1AP ID of this UE of unique identification in this MME that this UE distributes, or D2D finds sign.
Wherein, the addressable address of described MME comprises: the IP address of MME, or MME sign GUMMEI.
5) eNB sends D2D to source MME1 and finds request message, this message is carried parameter: temporary mark (for example eNB UE S1AP ID of UE1, or MME UE S1AP ID, or D2D finds sign), be found interim ID (for example eNB UE S1AP ID or the MME UE S1AP ID of UE, or D2D finds sign), be found (the IP address of for example MME, addressable address of the MME connecting of UE, or GUMMEI), and/or can show to trigger the application identities of this D2D business.
6) source MME1 is found the address of addressable address (the IP address of MME, or GUMMEI) the parsing target MME of the MME of the discovery list of UE according to the storage receiving.
7) source MME1 stores to each the target MME transmission D2D inquiry request message that is found UE discovery list, this message is carried parameter: temporary mark (for example eNB UE S1APID that is found UE, or MME UE S1AP ID, or D2D finds sign), the true identity of UE1, and/or can show to trigger the application identities of this D2D business.
Wherein, the true identity of described source UE1 can be: the IMSI of UE1, or the MSISDN of UE1.
8) target MME is mapped as the temporary mark that is found UE the true identity of UE.
Alternatively, target MME, according to the discovery list of this UE of storage, judges whether this UE can be found by source UE1.
Alternatively, target MME, according to the discovery list of this UE of storage, judges whether this UE can find described source UE1.
Alternatively, the application layer sign of associated this UE of target MME.This association can be for a certain specific D2D application.
9) target MME sends D2D query response message to source MME1, and this message is carried parameter: be found the true identity of object UE, and/or be found the indication whether object UE can be found by source UE1, and/or the application layer of object UE sign.
Wherein, source MME1, for each UE being found in object UE list, performs step respectively 7-9).
10) source MME1, according to the result indication of each D2D query response message feedback receiving, generates the true identity list that is found object UE, and/or the detectable D2D user list of final source UE1.
11) source MME1 sends D2D to eNB and finds response message, and this message is carried parameter: the user list that can be found by source UE1.Wherein, this user list can identify with the temporary mark of object UE.Preferably, this user list can also carry the corresponding application layer sign of each object UE.
12) eNB sends D2D to UE and finds response message, and this message is carried parameter: the D2D that can be found by source UE1 finds list (herein or be called user list) and/or can find the user list of described source UE1.Wherein, this user list can identify with the temporary mark of object UE.Preferably, this user list can also carry the corresponding application layer sign of each object UE.
13) the found user list of energy that UE1 storing received in source arrives.
Alternatively, source UE1 reports the application layer sign of the found object UE of corresponding energy to application layer.In this process, may carry out corresponding application layer ID and filter.
In step 11), 12) in, source MME1 can be not send the application layer ID that be found UE to UE yet.Now, source MME1 can send to this application layer ID list corresponding application server AS (Application Server), by AS, by application layer communication, discovery list is sent to UE1.
Embodiment bis-
As shown in Figure 3, this embodiment shows possesses the UE1 of D2D function and but object UE is positioned at same eNB scope different lower times of MME, and source UE1 finds the D2D discovery procedure of object UE.In order to simplify, in this schematic diagram, only show object UE and be the scene of 1.Wherein, source UE1 is positioned under the management of source MME1, and object UE 2 is positioned under the management of target MME2.In this process, source UE1 and object UE 2 are all used unique D2D that eNB distributes to find its D2D equipment of mark for marking.These process concrete steps are described below:
1)-2) with embodiment mono-step 1-3).
4) eNB receives that the D2D that source UE1 sends finds after request message, finds that according to the D2D of found object UE sign is associated with the temporary mark GUTI of this UE.
Wherein, described UE temporary mark can be: eNB is the eNB UE S1AP ID of this UE of unique identification in this eNB that this UE distributes, or MME is the MME UE S1AP ID of this UE of unique identification in this MME that this UE distributes, or D2D finds sign.
5) eNB sends D2D to source MME1 and finds request message, this message is carried parameter: temporary mark (for example eNB UE S1AP ID of UE1, or MME UE S1AP ID, or D2D finds sign, or the GUTI of UE1), be found the GUTI of UE, and/or can show to trigger the application identities of this D2D business.
6) source MME1 is found the address of the GUTI information analysis target MME of UE according to the storage receiving.
7) source MME1 stores to each the target MME transmission D2D inquiry request message that is found UE discovery list, this message is carried parameter: the temporary mark GUTI that is found UE, the true identity of UE1, and/or can show to trigger the application identities of this D2D business.
Wherein, the true identity of described source UE1 can be: the IMSI of UE1, or the MSISDN of UE1.
8) target MME is mapped as the true identity of UE according to the GUTI that is found UE, and according to the discovery list of this UE of storage, judges whether this UE can be found by source UE1.
Alternatively, the application layer sign of associated this UE of target MME.This association can be for a certain specific D2D application.
9)-13) with the step 9-13 of embodiment mono-).The temporary mark of object UE is herein GUTI.
Embodiment tri-
As shown in Figure 4, this embodiment shows network and shares under scene, and the UE1 and the object UE that possess D2D function are positioned at same eNB scope, but different lower times of MME, and source UE1 finds the D2D discovery procedure of object UE.In order to simplify, in this schematic diagram, only show object UE and be the scene of 1.Wherein, source UE1 is positioned under the management of source MME1, and object UE 2 is positioned under the management of target MME2.In core net, there is special entity to manage D2D business, i.e. D2D server (D2D Server).The D2D of UE finds that list information unification is stored in D2D server place.In this process, source UE1 and object UE 2 are all used unique D2D that eNB distributes to find its D2D equipment of mark for marking.These process concrete steps are described below:
1)-5) with the step 1-5 of embodiment mono-).
6) source MME1 finds that by D2D request message is transmitted to source D2D Server.This message is carried parameter: temporary mark (for example eNB UE S1AP ID that is found UE, or MME UE S1AP ID, or D2D finds sign), the addressable address of target MME, the true identity of UE1, and/or can show to trigger the application identities of this D2D business.
Wherein, the addressable address of described target MME can be: the IP address of target MME, or the sign GUMMEI of target MME.
Wherein, the true identity of described source UE1 can be: the IMSI of UE1, or the MSISDN of UE1.
7) D2D Server in source is found the address of addressable address (the IP address of MME, or GUMMEI) the parsing target MME of the target MME of the discovery list of UE according to the storage receiving.
8) D2D Server in source stores to each the target MME transmission D2D inquiry request message that is found UE discovery list, this message is carried parameter: temporary mark (for example eNB UES1AP ID that is found UE, or MME UE S1AP ID, or D2D finds sign), the true identity of UE1, and/or can show to trigger the application identities of this D2D business.
Wherein, the true identity of described source UE1 can be: the IMSI of UE1, or the MSISDN of UE1.
9) target MME is transmitted to target D2D Server by this D2D inquiry request message.
10) target D2D Server is mapped as the true identity of UE according to the temporary mark that is found UE, and according to the discovery list of this UE of storage, judges whether this UE can be found by source UE1.
Alternatively, the application layer sign of associated this UE of target D2D Server.This association can be for a certain specific D2D application.
11) target D2D Server sends D2D query response message to target MME, and this message is carried parameter: be found the indication whether object UE can be found by source UE1, and/or the application layer of object UE sign.
12) target MME forwards D2D query response message to source D2D Server.
Wherein, source D2D Server, for each UE being found in object UE list, performs step respectively 8-12).
13) D2D Server in source, according to the result indication of each D2D query response message feedback receiving, generates the detectable D2D user list of final source UE1.
14) D2D Server in source sends D2D to source MME and finds response message, and this message is carried parameter: the user list that can be found by source UE1.Wherein, this user list can identify with the temporary mark of object UE.Preferably, this user list can also carry the corresponding application layer sign of each object UE.
15) source MME forwards this D2D to eNB and finds response message.
16)-17) with the step 12-13 of embodiment mono-).
Embodiment tetra-
As shown in Figure 5, this embodiment shows possesses the UE1 of D2D function and but object UE is positioned at same eNB scope different lower times of MME, and source UE1 finds the D2D discovery procedure of object UE.In order to simplify, in this schematic diagram, only show object UE and be the scene of 1.Wherein, source UE1 is positioned under the management of source MME1, and object UE 2 is positioned under the management of target MME2.In this process, unique D2D that source UE1 and object UE 2 are all distributed with eNB finds that the ProSe ID that sign or D2D Server distribute identifies its D2D equipment.Different with embodiment tri-, in this embodiment, between eNB and D2D Server, directly communicate.
These process concrete steps are described below:
1) when UE1, UE2 start D2D business, UE1, UE2 carry out D2D authentication and authorization with network respectively.In this process, D2D Server is each unique sign ProSe ID of UE distribution that obtains D2D service authorization, and this ProSe ID is informed to eNB.Alternatively, eNB is unique D2D discovery ID of UE distribution that each obtains D2D service authorization.
2) source UE1 carries out D2D device discovery flow process.In this process, source UE1 can receive D2D discovery ID or the ProSe ID that found object UE sends.Before this step, eNB may need the physical layer configurations information of finding for D2D to all UE broadcast in community.
3) source UE1 sends D2D to eNB and finds request message, this message is carried parameter: the D2D of the found object UE that source UE1 receives finds sign or ProSe ID list, the identify label of UE1 is (as the D2D of UE1 finds ID, or ProSe ID, or C-RNTI etc.), and/or can show to trigger the D2D application identities of this D2D business.
4) eNB receives that the D2D that source UE1 sends finds that after request message, the addressable address of the D2D Server that each found object UE is connected is associated with it.Wherein, the IP address that the addressable address of described D2D Server is MME.
5) eNB sends D2D to source D2D Server and finds request message, this message is carried parameter: (for example D2D finds sign to the temporary mark of UE1, or ProSe ID), be found UE interim ID (D2D find sign, or ProSe ID), storage is found the addressable address (the IP address of for example D2D Server) of the D2D Server of the discovery list of UE, and/or can show to trigger the application identities of this D2D business.
6) D2D Server in source is found the address of addressable address (the IP address of D2D Server) the parsing target D2D Server of the target D2DServer of the discovery list of UE according to the storage receiving.
7) D2D Server in source stores to each the target D2D Server transmission D2D inquiry request message that is found UE discovery list, this message is carried parameter: temporary mark (for example D2D discovery sign that is found UE, or ProSe ID), the true identity of UE1, and/or can show to trigger the application identities of this D2D business.
Wherein, the true identity of described source UE1 can be: the IMSI of UE1, or the MSISDN of UE1.
8) target D2D Server is mapped as the true identity of UE according to the temporary mark that is found UE, and according to the discovery list of this UE of storage, judges whether this UE can be found by source UE1.
Alternatively, the application layer sign of associated this UE of target D2D Server.This association can be for a certain specific D2D application.
9) target D2D Server sends D2D query response message to source D2D Server, and this message is carried parameter: be found the indication whether object UE can be found by source UE1, and/or the application layer of object UE sign.
Wherein, source D2D Server, for each UE being found in object UE list, performs step respectively 7-9).
10) D2D Server in source, according to the result indication of each D2D query response message feedback receiving, generates the detectable D2D user list of final source UE1.
11) D2D Server in source sends D2D to eNB and finds response message, and this message is carried parameter: the user list that can be found by source UE1.Wherein, this user list can identify with the temporary mark of object UE.Preferably, this user list can also carry the corresponding application layer sign of each object UE.
12-13) with the step 12-13 of embodiment mono-).
Embodiment five
As shown in Figure 6, this embodiment shows and possesses the source UE1 of D2D function and but object UE 2 is positioned at same eNB scope different lower times of MME, the process that source UE1 and object UE 2 are found mutually.Wherein, source UE1 is positioned under the management of source MME1, and object UE 2 is positioned under the management of target MME2.In this process, source UE1 and object UE 2 are all used unique D2D that eNB distributes to find its D2D equipment of mark for marking.These process concrete steps are described below:
1)-2) with embodiment mono-step 1-2).
3) source UE1 and object UE 2 send D2D to eNB respectively and find request message, this message is carried parameter: the D2D of the found object UE that source UE receives finds identification list, the identify label of source UE is (as the D2D of UE finds ID, or C-RNTI etc.), and/or can show to trigger the D2D application identities of this D2D business.
4) eNB receives that the D2D that source UE1 and object UE 2 send finds after request message, finds that according to the D2D of source UE1 and object UE 2 sign is associated with its temporary mark separately.ENB also needs the addressable address of the MME that object UE 2 is connected associated with it.
Wherein, described UE temporary mark can be: eNB is the eNB UE S1AP ID of this UE of unique identification in this eNB that this UE distributes, or MME is the MME UE S1AP ID of this UE of unique identification in this MME that this UE distributes, or D2D finds sign.
Wherein, the addressable address of described MME comprises: the IP address of MME, or MME sign GUMMEI.
5) eNB sends D2D to source MME1 and finds request message, this message is carried parameter: temporary mark (for example eNB UE S1AP ID of UE1, or MME UE S1AP ID, or D2D finds sign), interim ID (for example eNB UE S1AP ID or the MME UE S1AP ID of object UE 2, or D2D finds sign), (the IP address of for example MME2, addressable address of the target MME2 of the discovery list of storage object UE 2, or GUMMEI), and/or can show to trigger the application identities of this D2D business.
6) source MME1 is found the address of addressable address (the IP address of MME, or GUMMEI) the parsing target MME2 of the MME of the discovery list of UE according to the storage receiving.
7) source MME1 sends D2D inquiry request message to target MME2, this message is carried parameter: temporary mark (for example eNB UE S1AP ID of UE2, or MME UE S1AP ID, or D2D finds sign), the true identity of UE1, and/or can show to trigger the application identities of this D2D business.
Wherein, the true identity of described source UE1 can be: the IMSI of UE1, or the MSISDN of UE1.
8) target MME2 is mapped as the true identity of UE2 according to the temporary mark of UE2, and according to the discovery list of the UE2 of storage, judges whether UE2 can be found by UE1.
Alternatively, the application layer sign of the associated UE2 of target MME2.This association can be for a certain specific D2D application.
9) target MME2 sends D2D query response message to source MME1, and this message is carried parameter: the true identity of UE2, the indication whether UE2 can be found by UE1, and/or the application layer of UE2 sign.
10) source MME1, according to the true identity of the object UE 2 receiving, retrieves the discovery list of the UE1 oneself preserving, according to this discovery list, judges whether UE1 can be found by UE2.Source MME1 generates respectively the discovery list of UE1 and UE2.
11) source MME1 sends D2D to eNB and finds response message, and this message is carried parameter: the discovery list of source UE1, the discovery list of object UE 2.Wherein, described discovery list can identify with the temporary mark of UE.Preferably, described discovery list can also carry the corresponding application layer sign of UE.
12) eNB sends D2D discovery response message to source UE1 and object UE 2 respectively, and this message is carried parameter: the discovery list of source UE1 or object UE 2.Wherein, described discovery list can identify with the temporary mark of UE.Preferably, described discovery list can also carry the corresponding application layer sign of UE.
13) source UE1 and the object UE 2 discovery list that storing received arrives respectively.
Alternatively, source UE1 and object UE 2 report respectively the application layer sign of the found UE of corresponding energy to application layer.In this process, may carry out corresponding application layer ID and filter.
In step 11), 12) in, source MME1 can be not send to UE1 and UE2 the application layer ID that is found UE yet.Now, source MME1 can send to this application layer ID list corresponding application server AS (Application Server), and by passing through application layer communication between AS and UE, AS sends to UE1 by discovery list.
Object UE in this embodiment can be also multiple.
Embodiment six
As shown in Figure 7, because temporary mark has ageingly, when eNB finds during ID for UE distributes D2D again, or UE is while moving to a new eNB, and eNB needs to core network entity (MME or D2D Server etc.), to send the D2D upgrading in real time and finds ID.
Embodiment seven
As shown in Figure 8, when core network entity distributes ProSe ID or GUTI for UE again, or UE is while moving to a new MME, and MME needs to eNB, send new ProSe ID or GUTI in real time.When upgrading temporary mark, UE need be in connection status.
In above-mentioned all embodiment, source UE and object UE also can be positioned under different eNB.Now, the address information of the target MME that source eNB can connect to target eNB request target UE.
In addition, as shown in Figure 9, the inquiry unit that also provides the present invention that a kind of direct-connected communication target end message is also provided in the embodiment of the present invention, this device mainly comprises that D2D in radio reception device finds request unit, and D2D finds that list issues unit,
Described D2D finds request unit, while being used for knowing the source terminal discovery target terminal under this radio reception device, to source network entity, send D2D and find request message, described D2D finds to carry in request message address information and the source terminal sign of the target network entity that described target terminal connects;
Described D2D finds that list issues unit, the D2D discovery list sending for receiving described source network entity, and be handed down to described source terminal.
Further, described D2D finds request unit, for the request message sending according to described source terminal, know described source terminal discovery target terminal, wherein, described request message comprises: the D2D of the described target terminal receiving in D2D discovery procedure finds sign or Prose ID, and/or the target network entity information that connects of described target terminal.
Further, described D2D finds request unit, for the address information of target network entity that described target terminal is connected, carries out association; And, when the Target Wireless access device that accesses when described target terminal is different from described source radio reception device, the address information of the target network entity connecting to target terminal described in the request of described Target Wireless access device.
Further, described device also comprises that the D2D in radio reception device finds sign distribution and updating block,
Described D2D finds sign distribution and updating block, is used to terminal distribution D2D to find the network entity that identifies and notify described terminal to connect; And while again finding sign or fast mobile terminal to new radio reception device for terminal distribution D2D, the D2D that the network entity connecting to described terminal sends the renewal of described terminal finds sign.
In addition, as shown in figure 10, the present invention also provides a kind of inquiry unit of direct-connected communication target end message, and this device mainly comprises the D2D inquiry request unit in network entity, and D2D inquiry response unit,
Described D2D inquiry request unit, while finding request message for receiving the D2D of radio reception device transmission, the address information of the target network entity connecting according to the target terminal carrying in described D2D discovery request message, to described target network entity, send D2D inquiry request message, in described D2D inquiry request message, carry described source terminal sign and described target terminal sign; And receive the D2D query response message that described target network entity is returned;
Described D2D inquiry response unit, when receiving the D2D inquiry request message that source network entity sends, the information of inquiring about described target terminal, and Query Result is returned to described source network entity by D2D query response message.
Further, described D2D inquiry response unit, for finding list in this locality or to the D2D of target terminal described in D2D server lookup, according to target terminal described in the D2D discovery list query of described target terminal, whether can by described source terminal, be found and/or whether can find described source terminal, and Query Result is returned to described source network entity by described D2D query response message.
Further, described D2D inquiry request unit, also when receiving described D2D and find request message, finds that according to described D2D the temporary mark of the described source terminal carrying in request message inquires the true identity of described source terminal; And carry the true identity of described source terminal, the temporary mark of described target terminal in the described D2D inquiry request message that sends to described target network entity;
Described D2D inquiry response unit, also when receiving described D2D inquiry request message, according to the temporary mark of described target terminal, inquire the true identity of described target terminal, and the true identity that comprises described target terminal in the described D2D query response message that returns to described source network entity.
Further, described D2D inquiry request unit, the described D2D query response message also receiving for basis, generating the detectable D2D of target terminal true identity list and/or source terminal finds list and/or can find that the D2D of described source terminal finds list, sends to radio reception device.
Further, described D2D inquiry request unit, also when receiving described D2D query response message, according to the true identity of described target terminal, in this locality or to the D2D of source terminal described in D2D server lookup, find list, judge whether described source terminal can be found by described target terminal and/or whether can find described target terminal, and generate the D2D discovery list that the detectable D2D of described target terminal finds list and/or can find described target terminal.
Further, described device also comprises that the terminal iidentification in network entity distributes and updating block,
Described terminal iidentification distributes and updating block, be used to terminal distribution ProSe ID or GUTI, and when for terminal distribution being terminal distribution ProSe ID or GUTI or fast mobile terminal to new network entity, to the radio reception device of described terminal, send ProSe ID or the GUTI of the renewal of described terminal.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, the present invention program is not limited to IEEE 802.16 systems, its associative mode can be applied in other wireless communication system.For a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
Claims (22)
1. a querying method for direct-connected communication target end message, is characterized in that, when source terminal is found target terminal,
The source radio reception device that described source terminal accesses sends direct-connected communication (D2D) to source network entity and finds request message, and described D2D finds to carry in request message address information and the source terminal sign of the target network entity that described target terminal connects;
Described source network entity sends D2D inquiry request message according to the address information of described target network entity to described target network entity, carries described source terminal sign and described target terminal sign in described D2D inquiry request message;
Described target network entity is inquired about the information of described target terminal, and by D2D query response message, Query Result is returned to described source network entity.
2. the method for claim 1, is characterized in that,
Described target network entity is inquired about the information of described target terminal, comprising:
Described target network entity is found list in this locality or to the D2D of target terminal described in D2D server lookup, according to target terminal described in the D2D discovery list query of described target terminal, whether can by described source terminal, be found and/or whether can find described source terminal, and Query Result is returned to described source network entity by described D2D query response message.
3. method as claimed in claim 2, is characterized in that,
The described target terminal that described source terminal is found comprises one or more;
Described source network entity, according to the described D2D query response message receiving, is found list and/or can be found that the D2D of described source terminal finds list for described source terminal generates the detectable D2D of described source terminal.
4. the method as described in claim 1,2 or 3, is characterized in that, described source radio reception device also comprises before sending D2D discovery request message to described source network entity:
Described source terminal sends a request message to described source radio reception device, described request message comprises: the D2D of the described target terminal receiving in D2D discovery procedure finds sign or Prose ID, and/or the target network entity information that connects of described target terminal.
5. method as claimed in claim 4, is characterized in that,
The address information of the target network entity that described source radio reception device connects described target terminal is carried out association;
When the Target Wireless access device that described target terminal accesses is different from described source radio reception device, the address information of the target network entity that described source radio reception device connects to target terminal described in the request of described Target Wireless access device.
6. the method for claim 1, is characterized in that,
Described source terminal sign comprises: the temporary mark of described source terminal;
When described source network entity receives described D2D discovery request message, according to the temporary mark of described source terminal, inquire the true identity of described source terminal;
In the described D2D inquiry request message that described source network entity sends to described target network entity, comprising: the true identity of described source terminal, the temporary mark of described target terminal.
7. method as claimed in claim 6, is characterized in that,
Described temporary mark comprises: the D2D of terminal finds sign, or the eNB eNBUE S1AP ID that is terminal distribution, or the MME MME UE S1AP ID that is terminal distribution, or the network entity ProSe ID that is terminal distribution, or the GUTI of terminal;
Described true identity, comprising: the IMSI of terminal, or MSISDN.
8. method as claimed in claim 6, is characterized in that,
When described target network entity receives described D2D inquiry request message, according to the temporary mark of described target terminal, inquire the true identity of described target terminal, and the true identity that comprises described target terminal in the described D2D query response message that returns to described source network entity.
9. method as claimed in claim 8, is characterized in that,
The described target terminal that described source terminal is found comprises one or more;
Described source network entity is according to the described D2D query response message receiving, for described source terminal generates the list of target terminal true identity.
10. method as claimed in claim 6, is characterized in that, described method also comprises:
When described source network entity receives described D2D query response message, according to the true identity of described target terminal, in this locality or to the D2D of source terminal described in D2D server lookup, find list, judge whether described source terminal can be found by described target terminal and/or whether can find described target terminal, and generate the D2D discovery list that the detectable D2D of described target terminal finds list and/or can find described target terminal.
11. methods as described in claim 1,2,3,6 or 7 any one, is characterized in that, described method also comprises:
When radio reception device is found sign or fast mobile terminal to new radio reception device for terminal distribution D2D again, the D2D that the network entity that radio reception device connects to described terminal sends the renewal of described terminal finds sign.
12. methods as described in claim 1,2,3,6 or 7 any one, is characterized in that, described method also comprises:
When network entity is terminal distribution ProSe ID or GUTI or fast mobile terminal to new network entity again, described network entity sends ProSe ID or the GUTI of the renewal of described terminal to the radio reception device of described terminal.
The inquiry unit of 13. 1 kinds of direct-connected communication target end messages, is characterized in that, comprises that D2D in radio reception device finds request unit, and D2D finds that list issues unit,
Described D2D finds request unit, while being used for knowing the source terminal discovery target terminal under this radio reception device, to source network entity, send D2D and find request message, described D2D finds to carry in request message address information and the source terminal sign of the target network entity that described target terminal connects;
Described D2D finds that list issues unit, the D2D discovery list sending for receiving described source network entity, and be handed down to described source terminal.
14. devices as claimed in claim 13, is characterized in that,
Described D2D finds request unit, for the request message sending according to described source terminal, know described source terminal discovery target terminal, wherein, described request message comprises: the D2D of the described target terminal receiving in D2D discovery procedure finds sign or Prose ID, and/or the target network entity information that connects of described target terminal.
15. devices as described in claim 13 or 14, is characterized in that,
Described D2D finds request unit, for the address information of target network entity that described target terminal is connected, carries out association; And, when the Target Wireless access device that accesses when described target terminal is different from described source radio reception device, the address information of the target network entity connecting to target terminal described in the request of described Target Wireless access device.
16. devices as described in claim 13 or 14, is characterized in that, described device also comprises that the D2D in radio reception device finds that sign distributes and updating block,
Described D2D finds sign distribution and updating block, is used to terminal distribution D2D to find the network entity that identifies and notify described terminal to connect; And while again finding sign or fast mobile terminal to new radio reception device for terminal distribution D2D, the D2D that the network entity connecting to described terminal sends the renewal of described terminal finds sign.
The inquiry unit of 17. 1 kinds of direct-connected communication target end messages, is characterized in that, comprises the D2D inquiry request unit in network entity, D2D inquiry response unit,
Described D2D inquiry request unit, while finding request message for receiving the D2D of radio reception device transmission, the address information of the target network entity connecting according to the target terminal carrying in described D2D discovery request message, to described target network entity, send D2D inquiry request message, in described D2D inquiry request message, carry described source terminal sign and described target terminal sign; And receive the D2D query response message that described target network entity is returned;
Described D2D inquiry response unit, when receiving the D2D inquiry request message that source network entity sends, the information of inquiring about described target terminal, and Query Result is returned to described source network entity by D2D query response message.
18. devices as claimed in claim 17, is characterized in that,
Described D2D inquiry response unit, for finding list in this locality or to the D2D of target terminal described in D2D server lookup, according to target terminal described in the D2D discovery list query of described target terminal, whether can by described source terminal, be found and/or whether can find described source terminal, and Query Result is returned to described source network entity by described D2D query response message.
19. devices as claimed in claim 17, is characterized in that,
Described D2D inquiry request unit, also when receiving described D2D and find request message, finds that according to described D2D the temporary mark of the described source terminal carrying in request message inquires the true identity of described source terminal; And carry the true identity of described source terminal, the temporary mark of described target terminal in the described D2D inquiry request message that sends to described target network entity;
Described D2D inquiry response unit, also when receiving described D2D inquiry request message, according to the temporary mark of described target terminal, inquire the true identity of described target terminal, and the true identity that comprises described target terminal in the described D2D query response message that returns to described source network entity.
20. devices as described in claim 18 or 19, is characterized in that,
Described D2D inquiry request unit, the described D2D query response message also receiving for basis, generating the detectable D2D of target terminal true identity list and/or source terminal finds list and/or can find that the D2D of described source terminal finds list, sends to radio reception device.
21. devices as claimed in claim 20, is characterized in that,
Described D2D inquiry request unit, also when receiving described D2D query response message, according to the true identity of described target terminal, in this locality or to the D2D of source terminal described in D2D server lookup, find list, judge whether described source terminal can be found by described target terminal and/or whether can find described target terminal, and generate the D2D discovery list that the detectable D2D of described target terminal finds list and/or can find described target terminal.
22. devices as described in claim 17,18 or 19, is characterized in that, described device also comprises that the terminal iidentification in network entity distributes and updating block,
Described terminal iidentification distributes and updating block, be used to terminal distribution ProSe ID or GUTI, and when for terminal distribution being terminal distribution ProSe ID or GUTI or fast mobile terminal to new network entity, to the radio reception device of described terminal, send ProSe ID or the GUTI of the renewal of described terminal.
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