CN104219733A - Method and equipment for finding proximity communication relay node - Google Patents
Method and equipment for finding proximity communication relay node Download PDFInfo
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- CN104219733A CN104219733A CN201310215424.5A CN201310215424A CN104219733A CN 104219733 A CN104219733 A CN 104219733A CN 201310215424 A CN201310215424 A CN 201310215424A CN 104219733 A CN104219733 A CN 104219733A
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Abstract
The invention discloses a method and equipment for finding a proximity communication relay node. The method comprises the following steps that: receiving a request of acquiring the proximity communication relay node sent by a terminal by network equipment; selecting a terminal having proximity communication relay capability for the terminal which sends the request; and returning information of the selected terminal to the terminal which sends the request. The method for finding the relay node during proximity communication based on a network is implemented.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of adjacent communication via node discover method and equipment.
Background technology
The adjacent communication technology of current 3GPP ProSe working group just between research equipment and equipment, by adjacent communication technology, at communicating pair UE(User Equipment, subscriber equipment, i.e. terminal) apart from time very near, communication can be realized between two UE or by eNB(evolved NodeB, enode b, i.e. base station) transmission realize high-speed traffic.
The adjacent communication technology of current equipment room can be applicable to public safety field.ProSe relay(is had namely to carry out adjacent communication based on via node for the adjacent communication under public safety scene, namely by the terminal possessing via node ability for the communication between its adjacent terminals provides relay services) demand, such as one terminal with public safety ability and mandate has can as the ability of the via node of other public safety terminal.
As shown in Figure 1A, UE1 and UE2 directly can transmit data, does not need through the network equipment; As shown in Figure 1B, can by service eNB forwarding data, and not need data route to cross core net when two UE are connected to same eNB.This transmission means can reduce transfer of data time delay, and can save Internet resources, particularly the Internet resources of core net.
For the adjacent communication scene described in Figure 1A and Figure 1B, there is several possible chain of command path.
As shown in Figure 2 A, when the UE relating to adjacent communication has identical service eNB and is within the network coverage, system can determine to adopt UE, eNB and EPC(Evolved Packet Core, evolution block core net) between control information exchange (such as session management, authorize, safety etc.) carry out adjacent communication.In addition, can direct exchange of signaling between UE, as indicated by the dashed line in fig. 2.
As shown in Figure 2 B, when the UE relating to adjacent communication has different service eNB (such as, cell boarder, grand/Microcell) and be positioned within the network coverage, system can determine to adopt the control information between UE, eNB and EPC to exchange (such as session management, authorize, safety etc.) carry out adjacent communication.Under this scene, can be communicated by EPC between eNB, also can direct communication, as shown in dotted line in Fig. 2 B.In addition, can direct exchange of signaling between UE, as shown in dotted line in Fig. 2 B.
If only some UE is under the network coverage, one or more UE can be other UE relay wireless resource management control informations not under the network coverage.
As shown in Figure 2 C, if UE is not within network coverage, the communication of control plane between UE, directly can be carried out.Under this scene, public safety UE can set up and safeguard adjacent communication by the pre-configured Radio Resource of relaying.In addition, if UE supports public safety radio resource management function, UE directly can manage the allocation of radio resources of public safety adjacent communication.
Inventor is realizing in process of the present invention, finds that prior art at least exists following defect:
The support of the ProSe relay of each terminal is different with enable situation, needs the terminal using ProSe relay, how to find out that a via node is the first step of carrying out ProSe relay communication, not yet have associated solutions at present for one.
Summary of the invention
Embodiments provide a kind of adjacent communication via node discover method and equipment, in order to realize discovery and the selection of adjacent communication via node.
The adjacent communication via node discover method that the embodiment of the present invention provides, comprising:
The request of the acquisition adjacent communication via node that network equipment receiving terminal sends;
The described network equipment is the terminal that the terminal of transmission described request selects to have adjacent communication relay capabilities;
The information of the terminal selected is returned to the terminal sending described request by the described network equipment.
The network equipment that the embodiment of the present invention provides, comprising:
Receiver module, for the request of the acquisition adjacent communication via node that receiving terminal sends;
Selecting module, selecting the terminal with adjacent communication relay capabilities for the terminal for sending described request;
Sending module, for returning to the terminal sending described request by the information of the terminal selected.
In the above embodiment of the present invention, after the request of the acquisition adjacent communication via node that network equipment receiving terminal sends, for this terminal selects the terminal with adjacent communication relay capabilities, achieve the discover method of via node in network adjacent communication process.
Accompanying drawing explanation
Figure 1A and Figure 1B realizes the data transfer path figure after adjacent communication between UE in prior art;
Fig. 2 A is the chain of command path schematic diagram of the adjacent communication of terminal room support Network Based in prior art under same eNB;
Fig. 2 B is the chain of command path schematic diagram of the adjacent communication of terminal room support Network Based in prior art under different e NB;
Fig. 2 C is the chain of command path schematic diagram without the adjacent communication of the terminal of network support in prior art;
Via node in the adjacent communication process that Fig. 3 provides for the embodiment of the present invention finds FB(flow block);
Fig. 4 is embodiment of the present invention Scene schematic flow sheet once;
Fig. 5 is the schematic flow sheet under embodiment of the present invention Scene two;
Fig. 6 is the schematic flow sheet under embodiment of the present invention Scene three;
Fig. 7 is the schematic flow sheet under embodiment of the present invention Scene four;
The structural representation of the network equipment that Fig. 8 provides for the embodiment of the present invention.
Embodiment
Embodiments provide a kind of by the network equipment according to the adjacent communication relay capabilities of terminal and terminal proximity relations, be that the terminal of request adjacent communication provides the scheme of adjacent communication via node.
The terminal related in the embodiment of the present invention refers to the terminal with contiguous function, namely supports contiguous discovery and adjacent communication ability.Contiguous discovery refers to and uses E-UTRAN(Evolved UMTS Terrestrial Radio Access Network, UMTS Terrestrial radio access network; Wherein, UMTS is Universal Mobile Telecommunications System, meaning and universal mobile telecommunications system) or the technology of EPC, determine that certain terminal with ProSe ability and another one have the terminal of ProSe ability contiguous; Adjacent communication refers to the communication between the terminal with ProSe ability is when contiguous, and this communication make use of E-UTRAN technology and carries out the transmission of user face, and the path between them is without any network node, or only through base station transfer.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
See Fig. 3, for the via node in the adjacent communication process that the embodiment of the present invention provides finds schematic flow sheet.For convenience of description, following flow process describes for terminal A, and as shown in the figure, this flow process can comprise:
Step 301: the request of the acquisition adjacent communication via node that network equipment receiving terminal A sends, may carry the information needing to carry out the target terminal of adjacent communication with terminal A, also may not carry this information in this request;
Step 302: this network equipment is the terminal that terminal A selects to have adjacent communication relay capabilities.
Step 303: the information (as terminal iidentification) of the terminal selected is returned to the terminal A initiating this request by this network equipment.
In the step 301 of above-mentioned flow process, terminal A can in network attachment process or at TAU(tracking area location updating) in process, obtain adjacent communication via node to this network equipment; In step 302, this network equipment can according to the adjacent communication relay capabilities information of terminal to report, and the communication set at terminal A place, the terminal with adjacent communication relay capabilities is selected from this communication set, as candidate's adjacent communication via node list of terminal A, or according to the adjacent communication relay capabilities information of terminal to report and the proximity relations of terminal A, the terminal with adjacent communication relay capabilities is selected, as candidate's adjacent communication via node list of terminal A from the adjacent terminals of terminal A; In step 303, this candidate's adjacent communication via node list can be returned to terminal A by this network equipment.
In the step 301 of above-mentioned flow process, UE_A is also by initiating adjacent communication request (as ProSe relay asks) to network side, with acquisition request to target terminal (for convenience of description, below this target terminal is called terminal B) the via node of adjacent communication, also other message can be passed through, the via node needed for adjacent communication process of this terminal of acquisition request and target terminal.In step 302, the proximity relations (according to this proximity relations can learn the adjacent terminals of terminal A) of this network equipment according to terminal A and the proximity relations (adjacent terminals of terminal B can be learnt according to this proximity relations) of terminal B, and the adjacent communication relay capabilities that the adjacent terminals of terminal A and terminal B reports, for terminal A selects the terminal as adjacent communication via node.The terminal gone out selected by this network equipment is the adjacent terminals of terminal A, is also the adjacent terminals of terminal B, and has adjacent communication relay capabilities.Further, when can only select in the communication set of place when system is defined as terminal selection adjacent communication via node, the terminal gone out selected by this network equipment is the adjacent terminals of terminal A, also be the adjacent terminals of terminal B, and there is adjacent communication relay capabilities, and be in same communication set with terminal A and terminal B.
In above-mentioned flow process, the network equipment selects the terminal adjacent communication relay capabilities information of via node time institute foundation, that terminal to report is to the network equipment, and be through the network equipment (as ProSe server) authentication, such as ProSe server can carry out authentication according to the CAMEL-Subscription-Information of terminal, to judge whether this terminal allows as adjacent communication via node for other terminal provides adjacent communication relay services, and if so, then authentication is passed through.Concrete, terminal can carried out in network attachment process or terminal TA U process, reports the adjacent communication relay capabilities information of this terminal.This network equipment (as ProSe server) carries out authentication after receiving the terminal adjacent communication relay capabilities information of terminal to report, authentication carries out preserving and safeguarding after passing through, preferably, terminal adjacent communication relay capabilities information can be recorded in the context of this terminal.
In above-mentioned flow process, the network equipment by obtaining and the proximity relations information of maintenance terminal with under type, using as the foundation when the terminal selection via node for initiation adjacent communication:
Mode 1: triggered by the network attachment process of terminal.Concrete, the network equipment determines the communication set at this terminal place according to the terminal initiating network attachment, obtain the positional information of member terminal in this communication set, determine the adjacent terminals of the terminal initiating network attachment according to the positional information of member terminal in this communication set, thus safeguard the proximity relations information of the terminal of this initiation network attachment.
Mode 2: triggered by the TAU process of terminal.Concrete, the network equipment determines the communication set at this terminal place according to the terminal initiating TAU process, obtain the positional information of member terminal in this communication set, determine the adjacent terminals of the terminal initiating TAU process according to the positional information of member terminal in this communication set, thus safeguard the proximity relations information of the terminal of this initiation TAU process.
Mode 3: the contiguous discovery procedure initiated by terminal triggers.Concrete, the network equipment determines the communication set at this terminal place according to the terminal initiating contiguous discovery procedure, obtain the positional information of member terminal in this communication set, determine the adjacent terminals of the terminal initiating contiguous discovery procedure according to the positional information of member terminal in this communication set, thus safeguard the proximity relations information of the terminal of the contiguous discovery procedure of this initiation.
Mode 4: the adjacent communication process of establishing initiated by terminal triggers.Concrete, the network equipment is according to the requesting terminal of adjacent communication and target terminal, determine the adjacent terminals of the requesting terminal of adjacent communication and target terminal (namely, for each terminal participating in adjacent communication, using the adjacent terminals of the distant terminal of adjacent communication as this terminal), according to the adjacent terminals determined, safeguard the requesting terminal of described adjacent communication and the proximity relations of target terminal.
Mode 5: trigger according to setting cycle.Concrete, the network equipment is according to the positional information of member terminal in setting cycle obtaining communication group, the adjacent terminals of member terminal in this communication set is determined according to the positional information of member terminal in this communication set, according to the adjacent terminals of member terminal in this communication set, safeguard the proximity relations information of member terminal in this communication set.
The network equipment in above-mentioned flow process can be the adjacent communication server of network side, as ProSe server, or can realize other network equipment of above-mentioned functions.
In order to more clearly be described the embodiment of the present invention, be described below by the specific implementation process of several embody rule scene to the embodiment of the present invention.
Following scene all describes with the example that is applied as of adjacent communication in public safety field, but other application, such as commercial field is applicable equally.UE(terminal in following scene) be the terminal with public safety ability and mandate, possess contiguous discovery and adjacent communication function.The adjacent communication service server (the ProSe server as in figure) of network side selects adjacent communication via node for the UE for request ProSe relay communication (namely carrying out adjacent communication by via node).ProSe server and equipment of the core network, as MME(Mobility Management Entity), and other network equipment, as eNB etc., there is communication interface.
See Fig. 4, it is embodiment of the present invention scene schematic flow sheet once.
Under this scene, UE_A, UE_B, UE_C, UE_E, UE_G have ProSe relay ability (namely can as the ability of the via node of other public safety terminal).First UE_A initiates network attachment process, reports ProSe relay ability in this process to ProSe server.After this sometime, UE_A wishes to communicate with UE_B, but UE_A and UE_B not vicinity, and UE_A and UE_C, UE_D, UE_E, UE_F are contiguous, and UE_B and UE_C, UE_D, UE_E, UE_G are close to.As shown in the figure, the flow process under this scene can comprise:
Step 401:UE_A initiates network attachment process, in network attachment process, reports oneself support ProSe relay ability to MME.Preferably, UE_A, by the mode of reporting ability indication information, reports the ability of ProSe relay to ProSe server.The ProSe relay ability information of UE_A is recorded in the context of UE_A by MME, and the ProSe relay ability information of UE is passed to ProSe server by MME.The ProSe relay ability information of ProSe server record UE_A, is such as recorded in the context of UE_A.
Step 402: sometime, UE_A wishes to communicate with UE_B, but UE_A and UE_B not vicinity.According to the strategy in terminal or configuration data, UE_A determines to attempt adopting ProSe relay communication.UE_A sends ProSe relay request to MME, wherein carries the mark of target terminal UE_B.
Step 403:MME sends ProSe relay request to ProSe server, wherein carries the mark of UE_A and UE_B.
Step 404:ProSe server obtains terminal set X={UE_C, UE_D, UE_E, the UE_F} contiguous with UE_A respectively, and terminal set Y={UE_C, UE_D, UE_E, the UE_G} contiguous with UE_B, from the common factor of X and Y select UE_C, UE_D, UE_E} support ProSe relay ability terminal set UE_C, UE_E}, and the terminal in this set be ProSe server for UE_A initiate to UE_B adjacent communication selected by the via node that goes out.
Wherein, ProSe server can adopt ProSe discovery method to obtain the terminal set contiguous with UE_A and the terminal set contiguous with UE_B.Wherein, the ProSe discovery method adopted includes but not limited to: based on LCS(Location Service, location-based service) method that realizes, based on the method for application server realizing, based on the method etc. that terminal directly finds.
Step 405:ProSe server returns ProSe relay response message to MME, comprising the mark of UE_C and UE_E.
Step 406:MME returns ProSe relay response message to UE_A, comprising the mark of UE_C and UE_E.
Step 407:UE_A can adopt certain criterion (such as signal strength signal intensity or Stochastic choice) from { selecting via node UE_C, UE_E} and initiate ProSe relay communication.
See Fig. 5, it is the schematic flow sheet under embodiment of the present invention scene two.
Be be based upon in the communication scenes of communication set (ProSe group) under this scene, the member in communication set can only choose member in this communication set as via node.
Under this scene, the member in the communication set X at UE_A place comprises: UE_A, UE_B, UE_C, UE_D, UE_E.Wherein, UE_A, UE_B, UE_C, UE_E have ProSe relay ability.UE_A and UE_B successively initiates attachment and renewal process, reports ProSe relay ability in this process to ProSe server.ProSe server is based on the proximity relations information of the member terminal in communication set periodic maintenance communication set.Sometime, UE_A wishes to communicate with UE_B, but UE_A and UE_B not vicinity, and UE_A and UE_C, UE_D, UE_E are contiguous, and UE_B and UE_C, UE_D, UE_E are close to.Flow process under this scene can comprise:
Step 501:UE_A initiates network attachment process, in network attachment process, reports oneself support the ability of ProSe relay to MME.The ProSe relay ability information of UE_A is recorded in the context of UE_A by MME, and the ProSe relay ability information of UE_A is passed to ProSe server by MME.The ProSe relay ability information of ProSe server record UE_A is in the context of UE_A.
Step 502:UE_B initiates TAU process, in TAU process, reports oneself support the ability of ProSe relay to MME.The ProSe relay ability information of UE_B is recorded in the context of UE_B by MME, and the ProSe relay ability information of UE_B is passed to ProSe server by MME.ProSe relay ability information in the context of ProSe server maintenance UE_B.
Step 503: the member terminal in communication set X initiates contiguous discovery procedure or adjacent communication process, in this process, MME and ProSe server is mutual, the proximity relations of the member terminal in maintain communications group X.
Such as, after UE_A is attached to network, wish the contiguous member obtaining place communication set, therefore initiate contiguous discovery (ProSe discovery) process to network.The contiguous of UE_A is found that request forward is to ProSe server by MME.ProSe server calls proximity relations discovery feature determines that the terminal with UE_A with proximity relations has UE_C, UE_D, UE_E, and the result that proximity relations finds is returned to UE_A by MME.ProSe server can support multiple proximity relations discovery feature, and different proximity relations discovery features may need ProSe server support the interface of heterogeneous networks equipment and carry out alternately with these network equipments.Such as, ProSe server can support LCS client function, the positional information of all member terminal of the LCS service acquisition UE_A place communication set of 3GPP network can be called, thus determine the proximity relations (which or which member terminal namely in this communication set is the adjacent terminals of UE_A) of UE_A.
Again such as, after UE_B is attached to network, by terminal directly find (radio direct discovery) method determine and UE_C, UE_D, UE_E in the communication set of place contiguous, UE_B can simultaneously with the one or more initiation adjacent communications in these three adjacent terminals.In the adjacent communication process of establishing of UE_B and its adjacent terminals, the participation of the equipment in network can be related to, wherein relate to access network equipment eNB to I haven't seen you for ages, equipment of the core network MME, ProSe server etc. may be related to.If ProSe server participates directly in the process of establishing of adjacent communication, then ProSe server directly can safeguard the proximity relations of the terminal relating to adjacent communication.If ProSe server does not participate directly in the process of establishing of adjacent communication, the adjacent communication of UE_B can be set up information and report ProSe server by MME by eNB, and then makes ProSe server can safeguard the proximity relations of the terminal involved by this adjacent communication.
Step 504: sometime, UE_A wishes to communicate with UE_B, but UE_A and UE_B not vicinity.According to the strategy in terminal or configuration data, UE_A determines to attempt adopting ProSe relay communication.UE_A provides the terminal of the via node that can communicate as ProSe relay to network request, can realize ProSe relay communicate by this terminal with UE_B.
Step 505: this request is submitted to ProSe server through MME.ProSe server determines that UE_A and UE_B belongs to communication set X, by the ProSe relay ability information of the member in query communication group X, and the proximity relations of UE_A (adjacent terminals of UE_A comprises: UE_C, UE_D, UE_E), the proximity relations (adjacent terminals of UE_B comprises: UE_C, UE_D, UE_E) of UE_B, determine that UE_C with UE_E can realize as UE_A with UE_B the via node that ProSe relay communicates, and result is returned to MME.
The mark of UE_C and UE_E is returned to UE_A by step 506:MME.
Step 507:UE_A selects the ProSe relay communication request being sent to UE_B to the UE_E that signal strength signal intensity is stronger, and after UE_E reply can support the response that this ProSe relay communicates, the ProSe relay that UE_A and UE_E is established to UE_B alternately communicates.
It should be noted that, flow process shown in Fig. 5 be carry out network attachment for the member terminal in communication set X, TAU upgrades and contiguous to find and adjacent communication describes.In actual applications, as long as there is terminal to carry out said process, ProSe server all can process according to above-mentioned flow process.
See Fig. 6, it is the schematic flow sheet under embodiment of the present invention scene three.
Be be based upon in the communication scenes of communication set (ProSe group) under this scene, the member in communication set can only choose member in this communication set as via node.
Under this scene, in the communication set X at UE_A place, member comprises: UE_A, UE_B, UE_C, UE_D, UE_E.Wherein, UE_A, UE_B, UE_C, UE_E have ProSe relay ability.UE_A and UE_B successively initiates attachment and renewal process, reports ProSe relay ability in this process to ProSe server.Sometime, UE_A wishes to communicate with UE_B, but UE_A and UE_B not vicinity, and UE_A and UE_C, UE_D, UE_E are contiguous, and UE_B and UE_C, UE_D, UE_E are close to.
Step 601:UE_A initiates network attachment process, in network attachment process, reports oneself support the ability of ProSe relay to MME.The ProSe relay ability information of UE_A is recorded in the context of UE_A by MME, and the ProSe relay ability information of UE_A is passed to ProSe server by MME.The ProSe relay ability information of ProSe server record UE_A is in the context of UE_A.
Further, ProSe server, according to the communication set X at UE_A place, upgrades the proximity relations of the member in communication set X.This may need ProSe server support the interface of heterogeneous networks equipment and carry out alternately with these network equipments.Such as, ProSe server can support LCS client function, can call the positional information of all member terminal in the LCS service acquisition communication set X of 3GPP network, determine the proximity relations of these member terminal according to the positional information got.
Step 602:UE_B initiates TAU process, in TAU process, reports oneself support the ability of ProSe relay to MME.The ProSe relay ability information of UE_B is recorded in the context of UE_B by MME, and the ProSe relay ability information of UE_B is passed to ProSe server by MME.ProSe relay ability information in the context of ProSe server maintenance UE_B.
Further, ProSe server, according to the communication set X at UE_B place, upgrades the proximity relations of the member in communication set X.This may need ProSe server support the interface of heterogeneous networks equipment and carry out alternately with these network equipments.Such as, ProSe server can support LCS client function, can call the positional information of all member terminal in the LCS service acquisition communication set X of 3GPP network, determine the proximity relations of these member terminal according to the positional information got.
603:ProSe server, according to the strategy of the CAMEL-Subscription-Information of communication set X, local configuration or operator, upgrades according to the proximity relations of certain cycle to the member in communication set X.This may need ProSe server support the interface of heterogeneous networks equipment and carry out alternately with these network equipments.Such as, ProSe server can support LCS client function, can call the positional information of all member terminal in the LCS service acquisition communication set X of 3GPP network, determine the proximity relations of these member terminal according to the positional information got.
Step 604: sometime, UE_A wishes to communicate with UE_B, but UE_A and UE_B not vicinity.According to the strategy in terminal or configuration data, UE_A determines to attempt adopting ProSe relay communication.UE_A provides the terminal of the via node that can communicate as ProSe relay to network request, can realize ProSe relay communicate by this terminal with UE_B.
Step 605: this request is submitted to ProSe server through MME.ProSe server determines that UE_A and UE_B belongs to communication set X, by the ProSe relay ability information of the member in query communication group X, and the proximity relations of UE_A (adjacent terminals of UE_A comprises: UE_C, UE_D, UE_E), the proximity relations (adjacent terminals of UE_B comprises: UE_C, UE_D, UE_E) of UE_B, determine that UE_C with UE_E can realize as UE_A with UE_B the via node that ProSe relay communicates, and result is returned to MME.
The mark of UE_C and UE_E is returned to UE_A by step 606:MME.
Step 607:UE_A selects the ProSe relay communication request being sent to UE_B to the UE_E that signal strength signal intensity is stronger, and after UE_E reply can support the response that this ProSe relay communicates, the ProSe relay that UE_A and UE_E is established to UE_B alternately communicates.
It should be noted that, flow process shown in Fig. 6 be carry out network attachment for the member terminal in communication set X, TAU upgrades and contiguous to find and adjacent communication describes.In actual applications, as long as there is terminal to carry out said process, ProSe server all can process according to above-mentioned flow process.
See Fig. 7, it is the schematic flow sheet under embodiment of the present invention scene four.
Under this scene, communication set X comprises: UE_A, UE_B, UE_C, UE_D, UE_E, UE_F, UE_G, wherein, UE_A, UE_B, UE_C, UE_E, UE_G have ProSe relay ability (namely can as the ability of the via node of other public safety terminal).UE_A initiates network attachment process (or TAU process), reports ProSe relay ability in this process to ProSe server, and request has the terminal list of ProSe relay ability.As shown in the figure, the flow process under this scene can comprise:
Step 701:UE_A initiates network attachment process, in network attachment process, report to MME and oneself support ProSe relay ability, and there is in the communication set X of acquisition request place the terminal list of ProSe relay ability, the ProSe relay ability information that this UE_A reports by MME, and obtain the request with the terminal list of ProSe relay ability and send to ProSe server.
Preferably, UE_A, by the mode of reporting ability indication information, reports the ability of ProSe relay to ProSe server.The ProSe relay ability information of UE_A is recorded in the context of UE_A by MME, and the ProSe relay ability information of UE is passed to ProSe server by MME.The ProSe relay ability information of ProSe server record UE_A, is such as recorded in the context of UE_A.
The ProSe relay ability information that step 702:ProSe server reports according to other UE in communication set X, therefrom selects the UE with ProSe relay ability.
Under this scene, suppose the ProSe relay ability information having stored UE_B, UE_C, UE_D, UE_E, UE_F, UE_G in communication set X in ProSe server, wherein, UE_B, UE_C, UE_E, UE_G have ProSe relay ability, therefore using UE_B, UE_C, UE_E, UE_G candidate relay node list as UE_A.
The candidate relay node list of the UE_A selected is sent to MME, comprising the mark of UE_B, UE_C, UE_E, UE_G by step 703:ProSe server.
The candidate relay node list of UE_A is sent to UE_A by step 704:MME, and UE_A preserves this candidate relay node list.
After this, sometime, UE_A wishes to communicate with UE_B, but UE_A and UE_B not vicinity, therefore perform following steps:
Step 705:UE_A selects according to the candidate relay node list of preserving the contiguous UE that can be used as via node, carries out adjacent communication by this UE and UE_B.Under this scene, UE_C, UE_E, UE_F in UE_A and candidate relay node list are contiguous, and UE_A selects the UE_E that wherein signal strength signal intensity is stronger to carry out adjacent communication as adjacent communication via node and UE_B.
It should be noted that, the step 705 of above-mentioned flow process may occur under net scene (namely there is the network coverage UE position), under also may occurring in off-grid scene (namely UE position does not have the network coverage).
By describing above and can finding out, because the ProSe relay ability information of self is reported the network equipment by terminal, therefore the network equipment can according to the proximity relations information of the ProSe relay ability of terminal and terminal, for the terminal of request ProSe relay communication selects via node, achieve and carry out via node discovery in adjacent communication process.In addition, the via node carried out in adjacent communication process Network Based finds, little on the impact of terminal, and it is energy-conservation to be beneficial to terminal.
Based on identical technical conceive, the embodiment of the present invention additionally provides a kind of network equipment.This network equipment can be the ProSe server in above-described embodiment, also can be the network equipment having similar functions.
See Fig. 8, be the reception schematic diagram of the network equipment that the embodiment of the present invention provides, this network equipment can comprise: receiver module 81, selection module 82, sending module 83, further, also memory module 84 can be comprised, further also proximity relations maintenance module 85 can be comprised, wherein:
Receiver module 81, for the request of the acquisition adjacent communication via node that receiving terminal sends;
Selecting module 82, selecting the terminal with adjacent communication relay capabilities for the terminal for sending described request;
Sending module 83, for returning to the terminal sending described request by the information of the terminal selecting module 82 to select.
Concrete, select module 82 can according to the adjacent communication relay capabilities information of terminal to report, and send the communication set at terminal place of described request, from this communication set, select the terminal with adjacent communication relay capabilities; Or, according to the adjacent communication relay capabilities information of terminal to report and the proximity relations of the terminal of transmission described request, from the adjacent terminals of the terminal of transmission described request, select the terminal with adjacent communication relay capabilities.
Concrete, described request comprises the information that the terminal sending described request needs the target terminal carrying out adjacent communication.Accordingly, selection module 82 can according to the adjacent communication relay capabilities information of terminal to report, and send the proximity relations of terminal and the proximity relations of described target terminal of described request, for the terminal sending described request selects the terminal meeting following condition: the adjacent terminals being the terminal sending described request, also be the adjacent terminals of described target terminal, and there is adjacent communication relay capabilities; Or, be the adjacent terminals of the terminal sending described request, be also the adjacent terminals of described target terminal, and there is adjacent communication relay capabilities, and be in same communication set with the terminal and described target terminal that send described request.
Further, receiver module 81 also can the adjacent communication relay capabilities information that reports of receiving terminal.Accordingly, the adjacent communication relay capabilities information of terminal to report of memory module 84 for preserving receiver module 81 and receiving; Select module 82 after receiver module 81 receives the described request of terminal transmission, according to the terminal adjacent communication relay capabilities information that memory module 84 is preserved, for the terminal sending described request selects the terminal with adjacent communication relay capabilities.
Wherein, receiver module 81 can receiving terminal in network attachment process by the adjacent communication relay capabilities information that equipment of the core network sends, the adjacent communication relay capabilities information that described receiver module can receive by memory module 84 is kept in the context of the terminal sending described adjacent communication relay capabilities information; Or, receiver module 81 can receiving terminal in tracking area position updating process by the adjacent communication relay capabilities information that equipment of the core network sends, the adjacent communication relay capabilities information that described receiver module can receive by memory module 84 is kept in the context of the terminal sending described adjacent communication relay capabilities information.
Further, proximity relations maintenance module 85 can realize one in the following manner or many in carry out the maintenance of terminal proximity relations:
Mode one: proximity relations maintenance module 85 determines the communication set at this terminal place according to the terminal initiating network attachment or tracking area location updating or contiguous discovery procedure, obtain the positional information of member terminal in described communication set, determine the adjacent terminals of the terminal of described initiation network attachment or tracking area location updating or contiguous discovery procedure according to the positional information of member terminal in described communication set, safeguard the proximity relations information of the terminal of described network attachment or tracking area location updating or contiguous discovery procedure according to the adjacent terminals determined.
Mode two: proximity relations maintenance module 85 is according to the requesting terminal of adjacent communication and target terminal, determine the requesting terminal of described adjacent communication and the adjacent terminals of target terminal, according to the adjacent terminals determined, safeguard the requesting terminal of described adjacent communication and the proximity relations of target terminal.
Mode three: proximity relations maintenance module 85 is according to the positional information of member terminal in setting cycle obtaining communication group, the adjacent terminals of member terminal in described communication set is determined according to the positional information of member terminal in described communication set, according to the adjacent terminals of member terminal in described communication set, safeguard the proximity relations information of member terminal in described communication set.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. an adjacent communication via node discover method, is characterized in that, described method comprises:
The request of the acquisition adjacent communication via node that network equipment receiving terminal sends;
The described network equipment is the terminal that the terminal of transmission described request selects to have adjacent communication relay capabilities;
The information of the terminal selected is returned to the terminal sending described request by the described network equipment.
2. the method for claim 1, is characterized in that, the described network equipment is the terminal that the terminal of transmission described request selects to have adjacent communication relay capabilities, specifically comprises:
The described network equipment is according to the adjacent communication relay capabilities information of terminal to report, and the communication set at the terminal place of transmission described request, selects the terminal with adjacent communication relay capabilities from this communication set;
Or the described network equipment, according to the proximity relations of the adjacent communication relay capabilities information of terminal to report with the terminal of transmission described request, selects the terminal with adjacent communication relay capabilities from the adjacent terminals of the terminal of transmission described request.
3. the method for claim 1, is characterized in that, described request comprises the information that the terminal sending described request needs the target terminal carrying out adjacent communication;
The described network equipment is the terminal that the terminal of transmission described request selects to have adjacent communication relay capabilities, specifically comprises:
The described network equipment according to the adjacent communication relay capabilities information of terminal to report, and sends the proximity relations of terminal and the proximity relations of described target terminal of described request, for the terminal sending described request selects the terminal meeting following condition:
Be the adjacent terminals of the terminal sending described request, be also the adjacent terminals of described target terminal, and there is adjacent communication relay capabilities;
Or, be the adjacent terminals of the terminal sending described request, be also the adjacent terminals of described target terminal, and there is adjacent communication relay capabilities, and be in same communication set with the terminal and described target terminal that send described request.
4. the method for claim 1, is characterized in that, described method also comprises: after the described network equipment receives the adjacent communication relay capabilities information of terminal to report, preserves the adjacent communication relay capabilities information of described terminal to report;
After the described network equipment receives the described request of terminal transmission, according to the terminal adjacent communication relay capabilities information of preserving, for the terminal sending described request selects the terminal with adjacent communication relay capabilities.
5. method as claimed in claim 4, is characterized in that, after the described network equipment receives the adjacent communication relay capabilities information of terminal to report, preserve the adjacent communication relay capabilities information of described terminal to report, specifically comprise:
The adjacent communication relay capabilities information received by the adjacent communication relay capabilities information that equipment of the core network sends, is kept in the context of the terminal sending described adjacent communication relay capabilities information by described network equipment receiving terminal in network attachment process;
Or, the adjacent communication relay capabilities information received by the adjacent communication relay capabilities information that equipment of the core network sends, is kept in the context of the terminal sending described adjacent communication relay capabilities information by described network equipment receiving terminal in tracking area position updating process.
6. the method for claim 1, is characterized in that, describedly also comprises:
The described network equipment determines the communication set at this terminal place according to the terminal initiating network attachment or tracking area location updating or contiguous discovery procedure, obtain the positional information of member terminal in described communication set, determine the adjacent terminals of the terminal of described initiation network attachment or tracking area location updating or contiguous discovery procedure according to the positional information of member terminal in described communication set, safeguard the proximity relations information of the terminal of described network attachment or tracking area location updating or contiguous discovery procedure according to the adjacent terminals determined.
7. the method for claim 1, is characterized in that, described method also comprises:
The described network equipment is according to the requesting terminal of adjacent communication and target terminal, determine the requesting terminal of described adjacent communication and the adjacent terminals of target terminal, according to the adjacent terminals determined, safeguard the requesting terminal of described adjacent communication and the proximity relations of target terminal.
8. the method for claim 1, is characterized in that, described method also comprises:
The described network equipment is according to the positional information of member terminal in setting cycle obtaining communication group, the adjacent terminals of member terminal in described communication set is determined according to the positional information of member terminal in described communication set, according to the adjacent terminals of member terminal in described communication set, safeguard the proximity relations information of member terminal in described communication set.
9. a network equipment, is characterized in that, comprising:
Receiver module, for the request of the acquisition adjacent communication via node that receiving terminal sends;
Selecting module, selecting the terminal with adjacent communication relay capabilities for the terminal for sending described request;
Sending module, for returning to the terminal sending described request by the information of the terminal selected.
10. the network equipment as claimed in claim 9, it is characterized in that, described selection module specifically for, according to the adjacent communication relay capabilities information of terminal to report, and the communication set at the terminal place of transmission described request, from this communication set, select the terminal with adjacent communication relay capabilities; Or, according to the adjacent communication relay capabilities information of terminal to report and the proximity relations of the terminal of transmission described request, from the adjacent terminals of the terminal of transmission described request, select the terminal with adjacent communication relay capabilities.
11. network equipments as claimed in claim 9, is characterized in that, described request comprises the information that the terminal sending described request needs the target terminal carrying out adjacent communication;
Described selection module specifically for, according to the adjacent communication relay capabilities information of terminal to report, and send the proximity relations of terminal of described request and the proximity relations of described target terminal, for the terminal sending described request selects the terminal meeting following condition:
Be the adjacent terminals of the terminal sending described request, be also the adjacent terminals of described target terminal, and there is adjacent communication relay capabilities;
Or, be the adjacent terminals of the terminal sending described request, be also the adjacent terminals of described target terminal, and there is adjacent communication relay capabilities, and be in same communication set with the terminal and described target terminal that send described request.
12. network equipments as claimed in claim 9, is characterized in that, also comprise: memory module;
Described receiver module is also for, the adjacent communication relay capabilities information that receiving terminal reports;
Described memory module, for preserving the adjacent communication relay capabilities information of the terminal to report that described receiver module receives;
Described selection module specifically for, after receiving the described request that terminal sends, according to the terminal adjacent communication relay capabilities information that described memory module is preserved, for the terminal sending described request selects to have the terminal of adjacent communication relay capabilities.
13. network equipments as claimed in claim 12, is characterized in that, described receiver module specifically for, receiving terminal in network attachment process by adjacent communication relay capabilities information that equipment of the core network sends; Described memory module specifically for, the adjacent communication relay capabilities information received by described receiver module is kept in the context of the terminal sending described adjacent communication relay capabilities information;
Or, described receiver module specifically for, receiving terminal in tracking area position updating process by adjacent communication relay capabilities information that equipment of the core network sends; Described memory module specifically for, the adjacent communication relay capabilities information received by described receiver module is kept in the context of the terminal sending described adjacent communication relay capabilities information.
14. network equipments as claimed in claim 9, is characterized in that, also comprise:
Proximity relations maintenance module, for determining the communication set at this terminal place according to the terminal initiating network attachment or tracking area location updating or contiguous discovery procedure, obtain the positional information of member terminal in described communication set, determine the adjacent terminals of the terminal of described initiation network attachment or tracking area location updating or contiguous discovery procedure according to the positional information of member terminal in described communication set, safeguard the proximity relations information of the terminal of described network attachment or tracking area location updating or contiguous discovery procedure according to the adjacent terminals determined.
15. network equipments as claimed in claim 9, is characterized in that, also comprise:
Proximity relations maintenance module, for according to the requesting terminal of adjacent communication and target terminal, determine the requesting terminal of described adjacent communication and the adjacent terminals of target terminal, according to the adjacent terminals determined, safeguard the requesting terminal of described adjacent communication and the proximity relations of target terminal.
16. network equipments as claimed in claim 9, is characterized in that, also comprise:
Proximity relations maintenance module, for the positional information according to member terminal in setting cycle obtaining communication group, the adjacent terminals of member terminal in described communication set is determined according to the positional information of member terminal in described communication set, according to the adjacent terminals of member terminal in described communication set, safeguard the proximity relations information of member terminal in described communication set.
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| CN201310215424.5A CN104219733B (en) | 2013-05-31 | 2013-05-31 | A kind of adjacent communication relay node discovery method and apparatus |
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| CN201310215424.5A CN104219733B (en) | 2013-05-31 | 2013-05-31 | A kind of adjacent communication relay node discovery method and apparatus |
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| CN104219733B (en) | 2018-09-11 |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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Effective date of registration: 20210527 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |