CN106454993A - Selection method and apparatus of relay node in device-to-device network - Google Patents

Selection method and apparatus of relay node in device-to-device network Download PDF

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Publication number
CN106454993A
CN106454993A CN201510495965.7A CN201510495965A CN106454993A CN 106454993 A CN106454993 A CN 106454993A CN 201510495965 A CN201510495965 A CN 201510495965A CN 106454993 A CN106454993 A CN 106454993A
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China
Prior art keywords
relay services
coding
remote terminal
name
via node
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CN201510495965.7A
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Chinese (zh)
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CN106454993B (en
Inventor
朱进国
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ZTE Corp
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ZTE Corp
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Priority to CN201510495965.7A priority Critical patent/CN106454993B/en
Priority to PCT/CN2016/078725 priority patent/WO2016180117A1/en
Publication of CN106454993A publication Critical patent/CN106454993A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point

Abstract

The embodiment of the invention discloses a selection method of a relay node in a device-to-device network. The method includes: sending a relay service coding monitoring request message including a remote UE identifier and position information of the remote UE, and receiving a relay service coding monitoring response message including an available relay service name of the remote UE and a corresponding available relay service code thereof, wherein the relay service name is a readable character string; obtaining a target relay service name selected by a user and a corresponding target relay service code thereof from the relay service coding monitoring response message; monitoring a broadcast selected relay service code and an address corresponding to the selected relay service code; and when monitoring that the selected relay service code is consistent with the target relay service code, sending a communication request to the address corresponding to the consistent selected relay service code. The embodiment of the invention also discloses a selection apparatus of the relay node in the device-to-device network.

Description

The system of selection of via node and device in a kind of device-to-device network
Technical field
The present invention relates to device-to-device communication technology, relaying section in more particularly, to a kind of device-to-device network The system of selection of point and device.
Background technology
The terminal of close region is directly led to using device-to-device (Device to Device, referred to as D2D) Letter can bring a lot of benefits to terminal, such as higher speed, lower delay and less power consumption, Also drastically increase the radio resource efficiency of operator, relaying (Relay) pattern of D2D is conducive to simultaneously Wireless coverage improves in operator；Public safety (Public Safety) system can also be real using D2D technology Now there is no the communication between terminal in the case of wireless coverage.
It is illustrated in figure 1 in correlation technique and third generation partner program (3GPP, 3rd Generation Partnership Project) related D2D network architecture schematic diagram, the function declaration of emphasis network element is as follows：
Remote terminal (Remote UE), is in no in wireless coverage, by via node (Relay UE) Access network.Remote interface 3 direction communication passed through between terminal and via node in D2D network.
Via node, has been in wireless coverage, has had access to network.This terminal returns remote end simultaneously End provides access function so that remote terminal passes through this via node access network.Via node carries for remote terminal For distribution IP address and IP routing function.
Evolved packet system (EPS, Evolved Packet System), including wireless access network evolved base station (eNodeB) and core net mobile management entity (MME, Mobility Management Entity), clothes Business gateway (SGW, Serving Gate Way) and packet data gateway (PGW, Packet Data Network Gateway), provide for via node and access passage.
Short-range communication server (ProSe Function), the main service authorization providing D2D to communicate, point Join temporary mark, assist to carry out the functions such as D2D discovery and charging.The previous public land mobile network of mesh (PLMN, Public Land Mobile Network) only dispose a short-range communication server it is contemplated that Roaming condition, the short-range communication server of via node and the short-range communication server of remote terminal may not With.Terminal passes through interface 1 and short-range communication server interaction, that is, as shown in figure 1, via node passes through Interface 1 and via node short-range communication server interaction；Remote terminal passes through interface 1 and remote terminal closely The communication server interacts.
Third-party application or authorized organization, predominantly terminal are distal end and via node provides application layer industry Business, such as public safety server etc..As shown in figure 1, third-party application or authorized organization pass through interface 2 with short-range communication server interaction, by interface 4 and via node or remote terminal interaction.
In a D2D network, via node may have multiple, the access service that each via node provides It is not quite similar, therefore, for remote terminal, how to select a suitable via node, be that a key is asked Topic.Current technology be mainly one 64 bit of relay node broadcasts relay services coding, remote terminal according to This relay services encodes, and selects suitable via node, however, this relay services coding is a binary system String, can not represent concrete meaning, therefore be not suitable for display and the selection of remote terminal.
Content of the invention
In view of this, embodiment of the present invention expectation provides a kind of selection of via node in device-to-device network Method and device, application encodes one-to-one relay services name with relay services, is easy to remote terminal and shows And selection.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that：
The system of selection of via node in a kind of device-to-device network, methods described includes：
Send relay services coding and monitor request message, described relay services coding is monitored request message and included Remote terminal iidentification and remote terminal positional information；
Receive relay services coding snoop responses message；Described relay services coding snoop responses message includes Remote terminal available relay services name and its corresponding available relay services coding, described relay services name Word is readable character string；
From described relay services encode snoop responses message obtain user select object relay service name and Its corresponding object relay Services Code；
The selection relay services coding of listening broadcast and described selection relay services encode corresponding address；And When listening to consistent with described object relay Services Code selection relay services coding, to described consistent Send communication request from the corresponding address of relay services coding.
In such scheme, described relay services coding is monitored in the target also including user's selection in request message Following the service business name；The then remote available relay services of terminal described in described relay services coding snoop responses message Name services name for object relay, and described available relay services are encoded to object relay Services Code.
In such scheme, in described relay services coding snoop responses message, also include described relay services coding Relay services in snoop responses message encode corresponding effect duration duration；Then, described listen to described When the consistent selection relay services of object relay Services Code encode, compile to described consistent selection relay services The corresponding address of code sends communication request, including：
In the effect duration duration of described object relay Services Code, listen to and compile with described object relay service When the consistent selection relay services of code encode, encode corresponding address to described consistent selection relay services and send out Send communication request.
In such scheme, described positional information includes the currently resident public land mobile network of remote terminal PLMN, or, described remote terminal positional information includes the currently resident PLMN of remote terminal and remote terminal The PLMN of the surrounding listening to；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
The system of selection of via node in a kind of device-to-device network, methods described includes：
Receive relay services coding and monitor request message, described relay services coding is monitored request message and included Remote terminal iidentification and remote terminal positional information；
When determining that the corresponding CAMEL-Subscription-Information of described remote terminal iidentification allows by via node access network, turn Coding monitors request message to send out relay services described；
Receive and forward relay Services Code snoop responses message, described relay services encode snoop responses message Include the available relay services name of described remote terminal and its corresponding available relay services coding, described Relay services name is readable character string.
In such scheme, described relay services coding is monitored request message and is included object relay service name, Then described in described relay services coding snoop responses message, remote terminal available relay services name is in target Following the service business name, described available relay services are encoded to object relay Services Code.
In such scheme, in described relay services coding snoop responses message, also include described relay services coding Relay services in snoop responses message encode corresponding effect duration duration.
In such scheme, described remote terminal positional information includes the currently resident PLMN of remote terminal, or, Described remote terminal positional information includes the surrounding PLMN that currently resident PLMN and remote terminal monitoring arrive；
Then, described forwarding described relay services coding monitoring request message, including：
Forward described to the via node ownership short-range communication server under the resident PLMN of described remote terminal Relay services coding monitors request message；
Or,
Via node under the surrounding PLMN arriving to the resident PLMN of described remote terminal and remote terminal monitoring Ownership short-range communication server forwards described relay services coding to monitor request message；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
The system of selection of via node in a kind of device-to-device network, methods described includes：
Receive relay services coding assignment request message, described relay services coding assignment request message includes Via node identifies；
When determining that the corresponding CAMEL-Subscription-Information of described via node mark allows to provide relay services, obtain described Via node identifies corresponding via node available relay services name, is described available middle following the service The corresponding available relay services coding of business name distribution, and send relay services coding assignment response message, Described relay services coding assignment response message includes described available relay services name and its corresponding Available relay services coding, described relay services name is readable character string；
Receive relay services coding and monitor request message, described relay services coding is monitored request message and included Remote terminal iidentification and remote terminal positional information；
Send relay services coding snoop responses message, described relay services coding snoop responses message includes Compiled according to the corresponding relay services of remote terminal available relay services name that described remote terminal positional information obtains Code.
In such scheme, also include via node mark in described relay services coding assignment request message and correspond to Via node available relay services name.
In such scheme, described obtain described via node and identify the available middle following the service of corresponding via node Business name, including：
Identify from described via node and corresponding CAMEL-Subscription-Information, obtain the described via node corresponding relaying of mark Node available relay services name.
In such scheme, in described relay services coding assignment response message, also include described relay services coding Relay services in assignment response message encode corresponding effect duration duration；Described relay services coding is monitored and is rung Answer the relay services coding also including in message in described relay services coding snoop responses message corresponding effectively Phase duration.
In such scheme, described remote terminal positional information includes the currently resident PLMN of remote terminal Network PLMN, or, described remote terminal positional information includes currently resident PLMN and remote terminal monitoring The surrounding PLMN arriving；
Then, include, in described remote terminal positional information, the week that currently resident PLMN and remote terminal monitoring arrive When enclosing PLMN, described relay services coding snoop responses message includes each PLMN and each PLMN The remote available relay services name of terminal and its corresponding available relay services coding down.
The system of selection of via node in a kind of device-to-device network, methods described includes：
Send relay services coding assignment request message, described relay services coding assignment request message includes Via node identifies；
Receive relay services coding assignment response message, described relay services coding assignment response message includes can The relay services name providing and its corresponding available relay services encode, and described relay services name is Readable character string；
Obtain from relay services name and its corresponding choosing from described relay services coding assignment response message Encoded with relay services；
Broadcast described selection relay services coding and the described selection relay services of distribution encode corresponding address.
In such scheme, also include from relay services name in described relay services coding assignment request message； Then, in described relay services coding assignment response message, available relay services name is to select relay services Name, described available relay services are encoded to from relay services coding.
In such scheme, in described relay services coding assignment response message, also include described relay services coding Relay services in assignment response message encode corresponding effect duration duration, then described broadcast is described selects relaying The described selection relay services of Services Code and distribution encode corresponding address, including：
In the effect duration duration of described selection relay services coding, broadcast described selection relay services coding with And the described selection relay services of distribution encode corresponding address.
A kind of remote terminal, described remote terminal includes：
First transmitting element, monitors request message, described relay services coding for sending relay services coding Monitor request message and include remote terminal iidentification and remote terminal positional information；
First receiving unit, for receiving relay services coding snoop responses message；Described relay services coding Snoop responses message includes remote terminal available relay services name and its corresponding available relay services are compiled Code, described relay services name is readable character string；
First processing units, the described relay services coding for receiving from described first receiving unit is monitored Object relay service name and its corresponding object relay Services Code that user selects is obtained in response message；
First monitoring unit, the selection relay services coding for listening broadcast and described selection relay services Encode corresponding address；
First transmitting element, is additionally operable to listen in described first monitoring unit and is obtained with described first processing units During the consistent selection relay services coding of the described object relay Services Code that takes, to described consistent from The corresponding address of the Services Code that continues sends communication request.
In such scheme, described relay services coding is monitored in the target also including user's selection in request message Following the service business name；The then remote available relay services of terminal described in described relay services coding snoop responses message Name services name for object relay, and described available relay services are encoded to object relay Services Code.
In such scheme, in described relay services coding snoop responses message, also include described relay services coding Relay services in snoop responses message encode corresponding effect duration duration；
Described first transmitting element, specifically in the effect duration duration of described object relay Services Code, Described first monitoring unit listens to the described object relay Services Code one obtaining with described first processing units During the selection relay services coding causing, send logical to the described consistent corresponding address of selection relay services coding Letter request.
In such scheme, described positional information includes the currently resident public land mobile network of remote terminal PLMN, or, described remote terminal positional information includes the currently resident PLMN of remote terminal and remote terminal The PLMN of the surrounding listening to；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
A kind of remote terminal attaching server, described remote terminal attaching server includes：
Second receiving unit, monitors request message, described relay services coding for receiving relay services coding Monitor request message and include remote terminal iidentification and remote terminal positional information；
Second transmitting element, in the corresponding label of remote terminal iidentification determining that described second receiving unit receives When about information allows by via node access network, described relay services coding is forwarded to monitor request message；
Second receiving unit, is additionally operable to receive relay services coding snoop responses message, described relay services are compiled Code snoop responses message includes the available relay services name of described remote terminal and its corresponding available relaying Services Code, described relay services name is readable character string；
Second transmitting element, is additionally operable to forward described relay services coding snoop responses message.
In such scheme, described relay services coding is monitored request message and is included object relay service name, Then described in described relay services coding snoop responses message, remote terminal available relay services name is in target Following the service business name, described available relay services are encoded to object relay Services Code.
In such scheme, in described relay services coding snoop responses message, also include described relay services coding Relay services in snoop responses message encode corresponding effect duration duration.
In such scheme, described remote terminal positional information includes the currently resident PLMN of remote terminal Network PLMN, or, described remote terminal positional information includes currently resident PLMN and remote terminal monitoring The surrounding PLMN arriving；Then,
Described second transmitting element, near for the via node ownership under the PLMN resident to described remote terminal Distance communication service device forwards described relay services coding to monitor request message；Or, stay to described remote terminal Via node ownership short-range communication service under the surrounding PLMN that the PLMN staying and remote terminal monitoring arrive Device forwards described relay services coding to monitor request message；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
A kind of via node attribution server, described via node attribution server includes：
3rd receiving unit, for receiving relay services coding assignment request message, described relay services coding Allocation request message includes via node mark；
Second processing unit, in the via node mark correspondence determining that described 3rd receiving unit receives CAMEL-Subscription-Information when allowing to provide relay services, obtain described via node and identify corresponding via node and can carry For relay services name, be that described available relay services name distributes corresponding available middle following the service Business coding, described relay services name is readable character string；
3rd transmitting element, for sending relay services coding assignment response message, described relay services coding Assignment response message includes described available relay services name and its corresponding available relay services Coding；
Described 3rd receiving unit, is additionally operable to receive relay services coding monitoring request message, described middle following the service Business coding is monitored request message and is included remote terminal iidentification and remote terminal positional information；
Described 3rd transmitting element, is additionally operable to send relay services coding snoop responses message, described middle following the service Business coding snoop responses message includes the available relaying of remote terminal obtaining according to described remote terminal positional information Service name corresponding relay services coding.
In such scheme, also include via node mark in described relay services coding assignment request message and correspond to Via node available relay services name.
In such scheme, described second processing unit, specifically for identifying corresponding label from described via node About obtain described via node mark corresponding via node available relay services name in information.
In such scheme, in described relay services coding assignment response message, also include described relay services coding Relay services in assignment response message encode corresponding effect duration duration；Described relay services coding is monitored and is rung Answer the relay services coding also including in message in described relay services coding snoop responses message corresponding effectively Phase duration.
In such scheme, described remote terminal positional information includes the currently resident PLMN of remote terminal Network PLMN, or, described remote terminal positional information includes currently resident PLMN and remote terminal monitoring The surrounding PLMN arriving；
Then, include, in described remote terminal positional information, the week that currently resident PLMN and remote terminal monitoring arrive When enclosing PLMN, described relay services coding snoop responses message includes each PLMN and each PLMN The remote available relay services name of terminal and its corresponding available relay services coding down.
A kind of via node, described via node includes：
4th transmitting element, for sending relay services coding assignment request message, described relay services coding Allocation request message includes via node mark；
4th receiving unit, for receiving relay services coding assignment response message, described relay services coding Assignment response message includes available relay services name and its corresponding available relay services coding, Described relay services name is readable character string；
3rd processing unit, the relay services coding assignment response for receiving from described 4th receiving unit disappears Obtain in breath from relay services name and its corresponding selection relay services coding；
Radio unit, for broadcast the described selection relay services coding that described 3rd processing unit obtains and The described selection relay services of distribution encode corresponding address.
In such scheme, also include from relay services name in described relay services coding assignment request message； Then, in described relay services coding assignment response message, available relay services name is to select relay services Name, described available relay services are encoded to from relay services coding.
In such scheme, in described relay services coding assignment response message, also include described relay services coding Relay services in assignment response message encode corresponding effect duration duration, then,
Described radio unit, specifically for, in the effect duration duration that described selection relay services encode, broadcasting The described selection relay services of described selection relay services coding and distribution encode corresponding address.
Embodiments provide the system of selection of via node and device in a kind of device-to-device network, During the relay services access network that remote terminal selects via node to provide, employ and relay services Encode one-to-one relay services name, the entitled readable character string of described relay services；User can pass through The available relay services name that remote terminal show selects the target middle rank service name of needs it is also possible to directly Connect the object relay service name that input needs, compared with the relay services of 64 bits of the prior art coding, Relay services name is more suitable for remote terminal and shows and checked selection by user.
Brief description
Fig. 1 is D2D network architecture schematic diagram of the prior art；
In a kind of device-to-device network being applied to remote terminal side that Fig. 2 provides for the embodiment of the present invention 1 The schematic flow sheet of the system of selection of via node；
Fig. 3 arrives for a kind of equipment being applied to remote terminal attaching server-side that the embodiment of the present invention 1 provides The schematic flow sheet of the system of selection of via node in device network；
A kind of equipment being applied to via node attribution server side that Fig. 4 provides for the embodiment of the present invention 1 The schematic flow sheet of the system of selection of via node in device network；
A kind of device-to-device network being applied to via node side that Fig. 5 provides for the embodiment of the present invention 1 The schematic flow sheet of the system of selection of middle via node；
The system of selection of via node in a kind of device-to-device network that Fig. 6 provides for the embodiment of the present invention 2 Schematic flow sheet；
The selecting party of via node in another kind of device-to-device network that Fig. 7 provides for the embodiment of the present invention 2 The schematic flow sheet of method；
The structured flowchart of a kind of remote terminal that Fig. 8 provides for the embodiment of the present invention 3；
The structured flowchart of a kind of remote terminal attaching server that Fig. 9 provides for the embodiment of the present invention 3；
A kind of structured flowchart of via node attribution server that Figure 10 provides for the embodiment of the present invention 3；
A kind of structured flowchart of via node that Figure 11 provides for the embodiment of the present invention 3.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly Chu, it is fully described by.
Embodiment 1
Embodiments provide a kind of system of selection of via node in device-to-device network, be applied to Remote terminal side, as shown in Fig. 2 the handling process of the present embodiment method comprises the following steps：
Step 201, transmission relay services coding monitor request message, and described relay services coding is monitored and asked Message includes remote terminal iidentification and remote terminal positional information.
Remote endpoint registration, to after EPS, is set up IP and is connected.Remote terminal can determine to carry out at any time Step 201 is to obtain object relay service name corresponding object relay Services Code, to remove wirelessly When covering, can be continued using the relay services that the corresponding via node of object relay Services Code provides Access network.
Remote terminal can send relay services coding by EPS to server and monitor request message, to ask to take Business device returns remote terminal available relay services name and its corresponding available relay services coding.Here institute The relay services name stated is a readable character string, can be such as the conversation initial of one business of mark Agreement-uniform resource locator (SIP-URL, Session Initiation Protocol-Uniform Resoure Locator).The remote terminal iidentification that described relay services coding is monitored in request message is used for server to transmission The remote terminal of request message carries out authority checking, and described remote terminal positional information is used for server in remote terminal position Available relay services name and its corresponding available relay services coding is screened around confidence breath.
Step 202, reception relay services coding snoop responses message；Described relay services encode snoop responses Message includes remote terminal available relay services name and its corresponding available relay services coding.
Server is after receiving relay services coding monitoring request message, it is first determined described remote terminal iidentification Whether corresponding CAMEL-Subscription-Information allows, by via node access network, determining described remote terminal iidentification correspondence CAMEL-Subscription-Information when allowing by via node access network, will be obtained according to described remote terminal positional information Remote terminal available relay services name and its corresponding relay services coding, and send relay services coding prison Listen response message, described relay services coding snoop responses message includes：The available relaying of described remote terminal Service name corresponding relay services coding.
Step 203, the object relay that acquisition user selects from described relay services coding snoop responses message Service name and its corresponding object relay Services Code.
In D2D network, the corresponding relay services name of each relay services is disclosed, and which kind of relaying user needs Service, will select inputted which kind of relay services name in remote terminal.This relay services name can be remote Terminal shows multiple relay services name options are selected by user or user directly in remote terminal Input.
If described relay services coding monitors the object relay service name that request message includes user's selection； The remote available relay services of terminal described in the described relay services coding snoop responses message that then server returns Name services name for object relay, and described available relay services are encoded to object relay Services Code.This Sample, remote terminal just can encode what acquisition user in snoop responses message selected receiving described relay services Object relay services name corresponding object relay Services Code.
If relay services coding monitors the object relay service name not including user's selection in request message；Then The relay services coding snoop responses message that server returns includes some around described remote terminal positional information Available relay services name and its corresponding available relay services coding.At this moment, remote terminal can show Go out the available relay services name that described relay services encode in snoop responses message, user from available The object relay service name selecting in relay services name, after obtaining object relay service name, and then just Described object relay service name corresponding object relay Services Code can be obtained.
Remote terminal can show the object relay service name of selection, makes user see that remote terminal selects to adopt Relay services name, display relay services name than show 64 bits relay services encode convenient, Also it is more suitable for user to check.
Encode one-to-one relay services name using with relay services in the method that the present embodiment provides, use The relay services name that family can be shown by remote terminal selects the target middle rank service name of needs, also may be used To directly input object relay service name, compared with the relay services of 64 bits of the prior art coding, Relay services name is more suitable for remote terminal and shows and checked selection by user.
Step 204, the selection relay services coding of listening broadcast and described selection relay services coding correspond to Address；And when listening to the selection relay services coding consistent with described object relay Services Code, to The described consistent corresponding address of selection relay services coding sends communication request.
Remote terminal will remove the network coverage, or when remote terminal has moved out the network coverage, remote terminal Determine to need to be communicated by via node access network, then the selection relay services in beginning listening for broadcasting Coding.
There is provided the via node of relay services can broadcast following the service in the selection of this via node offer in D2D network Business coding and described selection relay services encode corresponding address, and so remote terminal just can listen to broadcast Selection relay services coding and described selection relay services encode corresponding address.
It is described consistent selection relay services coding that described consistent selection relay services encode corresponding address The layer double-address of the relay services that corresponding via node provides.Remote terminal is listening to and described object relay When the consistent selection relay services of Services Code encode, will select to compile to described consistent selection relay services The corresponding address of code sends communication request, and then remote terminal is just right with described consistent selection relay services coding The via node answered is set up D2D and is connected, and encodes corresponding via node by described consistent selection relay services There is provided described consistent selection relay services coding for this remote terminal is the corresponding relaying of object relay Services Code Service, so remote terminal just can pass through this relay services access network.
The embodiment of the present invention additionally provides a kind of system of selection of via node in device-to-device network, described Method is applied to the remote terminal attaching server in server with remote terminal interaction, as shown in figure 3, this enforcement The handling process of example method comprises the following steps：
Step 301, reception relay services coding monitor request message, and described relay services coding is monitored and asked Message includes remote terminal iidentification and remote terminal positional information.
Step 302, determining that the corresponding CAMEL-Subscription-Information of described remote terminal iidentification allows to access by via node During network, described relay services coding is forwarded to monitor request message.
Here it should be noted that described server can be third-party application or special authorized organization, Can also be the short-range communication server of remote terminal attaching and the short-range communication server of via node ownership. The present embodiment method application remote terminal attaching server-side with remote terminal interaction in the server. This remote terminal attaching server can be in the third-party application shown in Fig. 1 or special authorized organization and remote The module of terminal interaction；Or the remote terminal attaching short-range communication service with remote terminal interaction shown in Fig. 1 Device.
When accessing D2D network, remote terminal can set in remote terminal attaching server in the server remote terminal Put CAMEL-Subscription-Information.After remote terminal attaching server receives relay services coding monitoring request message, first really Whether the corresponding CAMEL-Subscription-Information of fixed described remote terminal iidentification allows by via node access network however, it is determined that institute State the corresponding CAMEL-Subscription-Information of remote terminal iidentification to allow to pass through via node access network, remote terminal attaching server Just described relay services can be encoded monitoring request message to forward.Remote terminal attaching server can will be described Relay services coding is monitored request message and is transmitted to the via node ownership clothes interacted with via node in server Business device.This via node attribution server can be third-party application as shown in Figure 1 or special mandate The module interacting with via node in mechanism；Or the as shown in Figure 1 via node interacting with via node Ownership short-range communication server.
Step 303, receive and forward described relay services coding snoop responses message, described relay services are compiled Code snoop responses message includes the available relay services name of described remote terminal and its corresponding available relaying Services Code.
Via node attribution server can return relay services coding snoop responses message, relaying section after inquiry Point attribution server can filter out available relay services name around remote terminal positional information and its corresponding Available relay services coding.If described relay services coding is monitored request message and is included object relay service Name, then via node attribution server only inquire object relay service name corresponding object relay service Encode, now, described in the described relay services coding snoop responses message of return, remote terminal is available Relay services name services name for object relay, and described available relay services are encoded to object relay service Coding.If described relay services coding is monitored does not include object relay service name in request message, relay Node-home server lookup goes out all available relay services names and its correspondence around remote terminal positional information Available relay services coding, now, just wrap in the described relay services coding snoop responses message of return Include some available relay services names and its corresponding available relay services coding.
After remote terminal attaching server receives described relay services coding snoop responses message, will will be described Relay services coding snoop responses message is transmitted to remote terminal.
The embodiment of the present invention additionally provides a kind of system of selection of via node in device-to-device network, described Method is applied to the via node attribution server interact in server with via node, as shown in figure 4, this The handling process of embodiment method comprises the following steps：
Step 401, reception relay services coding assignment request message, described relay services coding assignment request Message includes via node mark.
After via node is registered to EPS, sets up IP and connect.When via node needs to open relay services When, via node can send relay services coding assignment request message, described relay services to server Coding assignment request message includes via node mark.
Here it should be noted that described server can be third-party application or special authorized organization, Can also be the short-range communication server of remote terminal attaching and the short-range communication server of via node ownership. The present embodiment method is exactly the via node attribution server side that application is interacted with via node in the server 's.This via node attribution server can be saved with relaying in third-party application or special authorized organization The device of point interaction；Or the short-range communication clothes of the via node ownership interacting with via node in server Business device.
Step 402, when determining that the corresponding CAMEL-Subscription-Information of described via node mark allows to provide relay services, Obtain described via node mark corresponding via node available relay services name, provide for described Relay services name distribution corresponding available relay services coding, and send relay services coding assignment Response message.
, when accessing D2D network, via node can be in the via node attribution server of server for via node Inside set CAMEL-Subscription-Information.After via node attribution server receives relay services coding assignment request message, First determine that described via node identifies whether corresponding CAMEL-Subscription-Information allows to provide relay services however, it is determined that described The corresponding CAMEL-Subscription-Information of via node mark allows to provide relay services, and via node attribution server just can obtain Obtain described via node and identify corresponding via node available relay services name, be described available The corresponding available relay services coding of relay services name distribution.
If described relay services coding assignment request message includes via node, and the corresponding via node of mark can The relay services name providing, then described via node attribution server can be from described relay services coding assignment Described via node mark corresponding via node available relay services name is obtained, so in request message It is that described via node mark corresponding via node available relay services name distribution is corresponding afterwards to carry For relay services coding；If not including via node mark in described relay services coding assignment request message The available relay services name of corresponding via node, then described via node attribution server can be from described Obtaining the described via node corresponding via node of mark in the via node corresponding CAMEL-Subscription-Information of mark can provide Relay services name, then distribute corresponding available relaying for described available relay services name Services Code.
Then during via node attribution server will return to the corresponding via node of described via node mark Following the service be engaged in coding assignment response message, described relay services coding assignment response message includes described in can provide Relay services name and its corresponding available relay services coding.
Step 403, reception relay services coding monitor request message, and described relay services coding is monitored and asked Message includes remote terminal positional information.
After remote terminal attaching server in server receives relay services coding monitoring request message, true When determining the corresponding CAMEL-Subscription-Information permission of described remote terminal iidentification by via node access network, during forwarding is described The Services Code that continues monitors request message to via node attribution server, and described via node attribution server connects Receive relay services coding and monitor request message.
Step 404, transmission relay services coding snoop responses message, described relay services encode snoop responses Message includes the corresponding relay services of the available relay services name of the corresponding remote terminal of remote terminal positional information Coding.
Described via node attribution server, in step 402, obtains via node mark corresponding relaying section The available relay services name of point, is that described available relay services name distribution is corresponding available Relay services encode；So in step 404, described via node attribution server just can screen these Available relay services name distributes corresponding available relay services coding, obtains remote terminal location letter Cease the available relay services name of corresponding remote terminal corresponding relay services coding.It is then back to remote terminal to return Belong to Server Relay Services Code snoop responses message, described relay services coding snoop responses message includes The corresponding relay services coding of the available relay services name of the corresponding remote terminal of remote terminal positional information.
Embodiments provide a kind of system of selection of via node in device-to-device network, be applied to Via node side, as shown in figure 5, the handling process of the present embodiment method comprises the following steps：
Step 501, transmission relay services coding assignment request message, described relay services coding assignment request Message includes via node mark.
After via node is registered to EPS, sets up IP and connect；When via node needs to open relay services When, via node can send relay services coding assignment request message to server, and request server is The corresponding available relay services coding of via node available relay services name distribution.Described here Relay services name be a readable character string, such as identify a business SIP URL.In described The via node that following the service is engaged in coding assignment request message identifies for server to the relaying sending request message Node carries out authority checking.
Step 502, reception relay services coding assignment response message, described relay services coding assignment response Message includes available relay services name and its corresponding available relay services coding.
Server is after receiving relay services coding assignment request message, it is first determined described via node mark Know whether corresponding CAMEL-Subscription-Information allows to provide relay services, determining the described via node corresponding label of mark When about information allows to provide relay services, obtain the described via node corresponding via node of mark available Relay services name, is that the corresponding available relay services of described available relay services name distribution are compiled Code, and send relay services coding assignment response message, wrap in described relay services coding assignment response message Include described available relay services name and its corresponding available relay services coding.
Step 503, obtain from described relay services coding assignment response message from relay services name and Its corresponding selection relay services coding.
If described relay services coding monitors the object relay service name that request message includes user's selection； In D2D network, the corresponding relay services name of each relay services is disclosed, via node open a certain in During following the service business, the relay services corresponding selection relay services name that will select this via node carries It is sent to server, request server is described selection relay services in relay services coding assignment request message Name distribution is from relay services coding；So, via node just can be compiled receiving described relay services Obtain in code assignment response message and encoded from relay services name and its corresponding selection relay services, so, Via node just can obtain from described relay services coding assignment response message from relay services name and Its corresponding selection relay services coding.
If described relay services coding monitors the object relay service name not including user's selection in request message； The relay services coding assignment response message that then server returns includes described via node and identifies corresponding label Some available relay services name about in information and its corresponding available relay services coding, this Sample via node just can be from described available relay services name and its corresponding available relay services Encode the selection relay services name selected and its corresponding selection relay services coding.
The described selection relay services coding of step 504, broadcast described selection relay services coding and distribution Corresponding address.
Via node can be broadcasted to from relay services coding, so that neighbouring remote terminal knows this relaying Node can provide this to select relay services to encode corresponding relay services, and also broadcast has in described selection simultaneously The corresponding address of the Services Code that continues, when selecting relay services to encode corresponding relay services in order to remote terminal, Encode corresponding via node with this from relay services to be communicated, obtain corresponding relay services.
Embodiment 2
Remote terminal attaching server described in the present embodiment is in third-party application or special authorized organization Module with remote terminal interaction；Described via node attribution server is third-party application or special mandate The module interacting with via node in mechanism；Or described remote terminal attaching server is and remote terminal interaction Remote terminal attaching short-range communication server.Described via node attribution server is to save with relaying in server The via node ownership short-range communication server of point interaction.
Embodiments provide a kind of system of selection of via node in device-to-device network, such as Fig. 6 Shown, the handling process of the present embodiment method comprises the following steps：
Step 601, via node send the request of relay services coding assignment to via node attribution server and disappear Breath；Described relay services coding assignment request message is included from relay services name and via node mark.
After via node is registered to EPS, sets up IP and connect.When via node needs to open a certain relaying When service, via node is firstly the need of the relay services name obtaining this relay services；Via node obtains The process taking relay services name can be that user selects this relay services name by hand, or user is defeated by hand Enter this relay services name, such via node just can get the relay services name of user input.Should Relay services name is a readable character string, can be such as the SIP-URL of one business of mark.? Need exist for illustrating, in D2D network, the corresponding relay services name of each relay services is disclosed, Via node needs opened which relay services, just carries in described relay services coding assignment request message Which relay services corresponding relay services name.
Via node can send this relay services coding assignment by EPS to via node attribution server please Seek message, ask this via node attribution server to be that described selection relay services name distribution corresponding two is entered System is from relay services coding.
Step 602, via node attribution server receive described relay services coding assignment request message；And When determining that the corresponding via node of described via node mark allows relay function, return to described via node Return relay services coding assignment response message.
When accessing D2D network, via node can consult label with via node attribution server to via node About information.Via node attribution server, after receiving relay services coding assignment request message, first determines Described via node identifies whether corresponding CAMEL-Subscription-Information allows to provide relay services however, it is determined that described relaying section The corresponding CAMEL-Subscription-Information of point identification allows to provide relay services, and via node attribution server is just from described The selection relay services name of the acquisition that following the service is engaged in coding assignment request message distributes following the service in corresponding selection Business coding.
Optionally, after determining that the corresponding CAMEL-Subscription-Information of described via node mark allows to provide relay services, Also need to determine whether this CAMEL-Subscription-Information allows using from relay services name；And determining this CAMEL-Subscription-Information Allow using during from relay services name, via node attribution server is just from described relay services coding The selection relay services name distribution corresponding selection relay services coding of the acquisition in allocation request message.
Optionally, described via node attribution server also can correspond to for described selection relay services coding assignment Effect duration duration.
Via node attribution server can be by following the service in described selection relay services name and its corresponding selection Business encodes, and described selection relay services encode corresponding effect duration duration and carry in relay services coding point Join and in response message, return to via node.
Step 603, via node obtain following the service in selecting from described relay services coding assignment response message Business name and its corresponding selection relay services coding.
Described relay services coding assignment response message is included from relay services name and its corresponding selection Relay services encode, and described selection relay services encode corresponding effect duration duration, described via node Can directly obtain from relay services name and its corresponding from described relay services coding assignment response message From relay services coding.
Step 604, described selection relay services coding effect duration duration in, broadcast described from relaying The described selection relay services of Services Code and distribution encode corresponding address.
Via node can be broadcasted to from relay services coding, so that neighbouring remote terminal knows this relaying Node can provide this to select relay services to encode corresponding relay services, also broadcast as in described selection simultaneously The address of following the service business coding assignment, selects using described selection relay services coding in order to neighbouring remote terminal During corresponding relay services, encode corresponding via node with this from relay services and communicated, obtain phase The relay services answered.
Via node in D2D network, when opening a certain relay services, can be carried out step 601-604, Obtain the selection relay services coding of this relay services；And the institute that will be encoded from relay services and distribute State and gone out from the relay services corresponding address broadcast of coding, the remote terminal of surrounding can be listened to.
Step 605, remote terminal send relay services coding to remote terminal attaching server and monitor request message； Described relay services coding is monitored request message and is included the object relay service name of user's selection, remote terminal Mark and remote terminal positional information.
Remote endpoint registration, to after EPS, is set up IP and is connected.Remote terminal can determine to carry out at any time Step 605 is to obtain object relay service name corresponding object relay Services Code, to remove wirelessly When covering, can be continued using the relay services that the corresponding via node of object relay Services Code provides Access network.
Remote terminal is passed through EPS and is sent relay services coding monitoring request message to remote terminal attaching server, please This remote terminal attaching server is asked to return object relay service name corresponding object relay Services Code.
Step 606, remote terminal attaching server receive described relay services coding and monitor request message, and When determining that the corresponding CAMEL-Subscription-Information of described remote terminal iidentification allows by via node access network, to relaying section Point attribution server forwards described relay services coding to monitor request message.
When accessing D2D network, remote terminal can be arranged in the remote terminal attaching server of server remote terminal Good CAMEL-Subscription-Information.After remote terminal attaching server receives relay services coding monitoring request message, first determine Whether the corresponding CAMEL-Subscription-Information of described remote terminal iidentification allows by via node access network however, it is determined that described The remote corresponding CAMEL-Subscription-Information of terminal iidentification allows to pass through via node access network, and remote terminal attaching server is Described relay services can be encoded monitoring request message and be transmitted to via node attribution server.
Concrete repeating process has following two situations：
The first situation, described remote terminal attaching server is in third-party application or special authorized organization With the device of remote terminal interaction, via node attribution server is third-party application or special authorized organization In the device that interacts with via node.Described remote terminal attaching server and described via node attribution server Constitute third-party application or special authorized organization.Now, described remote terminal attaching server can be directly Described relay services are encoded monitoring request message and is transmitted to via node attribution server.
Second situation, described remote terminal attaching server is remote terminal attaching short-range communication server, in The node-home server that continues belongs to short-range communication server for via node；Now described relay services coding The remote terminal positional information monitored in request message is currently resident PLMN；Described remote terminal attaching service Device is that described relay services coding monitoring request message can be transmitted to by remote terminal attaching short-range communication server The currently via node ownership short-range communication server under resident PLMN.
In the latter case, described relay services encode the remote terminal positional information monitoring in request message also The PLMN of the surrounding that can arrive for the currently resident PLMN of remote terminal and remote terminal monitoring；Then described remote Terminal attaching server is that the coding monitoring of described relay services can be asked by remote terminal attaching short-range communication server Message is asked to be transmitted to the ownership short-range communication server of the via node under currently resident PLMN, Yi Jiyuan Via node ownership short-range communication server under the PLMN of the surrounding that terminal monitoring arrives.
Step 607, via node attribution server receive described relay services coding and monitor request message, and Send relay services coding snoop responses message to described remote terminal attaching server.
Via node attribution server has obtained and described via node attribution server in step 601-602 Signing via node open relay services corresponding selection relay services name and from relay services coding, After then via node attribution server receives described relay services coding monitoring request message, will be inquired about these Obtain, from relay services name, the object relay service name that remote terminal needs, and then obtain object relay clothes Business name corresponding object relay Services Code, optionally, if the ownership clothes of via node described in step 602 Business device is also effect duration duration from relay services coding assignment, then described object relay Services Code is also right Should there is the effect duration duration of distribution.Then, described via node attribution server will be returned to described remote terminal Belong to server and send relay services coding snoop responses message, described relay services encode snoop responses message package Include described object relay service name and its corresponding object relay Services Code, optionally, also include described Object relay Services Code duration of corresponding effect duration.
If described via node attribution server is to save with relaying in third-party application or special authorized organization The device of point interaction, then the positional information sieve that described via node attribution server can first according to described remote terminal Select remote terminal surrounding available relay services name, then inquire about from these available relay services names and obtain Obtain object relay service name.If described via node attribution server is via node ownership short-range communication Server, then the via node under PLMN in remote terminal positional information in described via node attribution server The relay services corresponding selection relay services that ownership short-range communication server is opened from the via node of signing In name, inquiry obtains object relay service name.Then, each via node belongs to short-range communication server Relay services coding snoop responses message will be sent to described remote terminal attaching server.
When described remote terminal positional information includes currently resident PLMN, described relay services coding is monitored Response message include under the resident PLMN of remote terminal remote terminal available relay services name and its corresponding can Relay services encode.Include currently resident PLMN and remote terminal in described remote terminal positional information During the surrounding PLMN listening to, described relay services coding snoop responses message includes each PLMN and each Remote terminal available relay services name and its corresponding available relay services coding under PLMN, optionally, Also include the corresponding effect duration duration of described object relay Services Code.
Step 608, remote terminal attaching server receive described relay services and encode snoop responses message, and will Described relay services coding snoop responses message is transmitted to described remote terminal.
Step 609, remote terminal receive described relay services and encode snoop responses message, from described relay services Object relay service name and its corresponding object relay clothes that user selects are obtained in coding snoop responses message Business coding.
Described remote terminal directly can obtain described user's choosing from described relay services coding snoop responses message The object relay service name selected and its corresponding object relay Services Code.
Step 610, remote terminal are will remove covering, or when having moved out covering, begin listening for The selection relay services coding of broadcast and described selection relay services encode corresponding address.
Remote terminal will remove covering, or when remote terminal has moved out covering, remote terminal needs to pass through Via node access network is communicated, then the selection relay services coding in beginning listening for broadcasting.In step In 604, via node can be broadcasted corresponding from relay services coding and described selection relay services coding Address, so remote terminal just can listen to selection relay services coding and the institute of broadcast in step 610 State and encode corresponding address from relay services.
Step 611, in the effect duration duration of described object relay Services Code, listen to and described target When the consistent selection relay services of relay services coding encode, right to described consistent selection relay services coding The address answered sends communication request.
In the effect duration duration of described object relay Services Code, listen to and compile with described object relay service When the consistent selection relay services of code encode, show have via node to provide described target within this time period Relay services encode corresponding relay services, and now remote terminal will be compiled to described consistent selection relay services The corresponding address of code sends communication request, and described consistent selection relay services encode corresponding address and are institute State the layer double-address of the relay services that the consistent corresponding via node of selection relay services coding provides；Far whole End thinks that the corresponding via node in this address sends communication request, asks this via node to provide this relaying for it Service, this via node agree to after provide after this relay services for remote terminal, described remote terminal just with this in The node that continues establishes D2D and connects, and remote terminal just can pass through this via node access network.
Embodiments provide a kind of system of selection of via node in device-to-device network, such as Fig. 7 Shown, the handling process of the present embodiment method comprises the following steps：
Step 701, via node send the request of relay services coding assignment to via node attribution server and disappear Breath；Described relay services coding assignment request message includes via node mark.
After via node is registered to EPS, sets up IP and connect.When via node needs to open relay services When, via node just can send this relay services coding by EPS to via node attribution server Allocation request message, asks the middle following the service that this via node attribution server can provide for described via node The relay services name distribution corresponding binary system relay services coding of business.
Step 702, via node attribution server receive described relay services coding assignment request message；And When determining that the corresponding via node of described via node mark allows relay function, return to described via node Return relay services coding assignment response message.
When accessing D2D network, via node can consult label with via node attribution server to via node About information, includes whether in described CAMEL-Subscription-Information to allow to provide relay services, and via node can provide Relay services relay services name.Via node attribution server is receiving relay services coding assignment After request message, first determine that described via node identifies whether corresponding CAMEL-Subscription-Information allows to provide relay services, If it is determined that described via node mark corresponding CAMEL-Subscription-Information permission offer relay services, via node ownership clothes Business device identifies from described via node and obtains the described via node corresponding relaying of mark corresponding CAMEL-Subscription-Information Node available relay services name, and carry for described available relay services name distribution is corresponding For relay services coding.Optionally, described via node attribution server also can for described available in Following the service business coding assignment duration of corresponding effect duration.
Via node attribution server by described available relay services name and its corresponding can provide Relay services coding, and described available relay services encode corresponding effect duration duration carry in Via node is returned in following the service business coding assignment response message.
Step 703, via node obtain following the service in selecting from described relay services coding assignment response message Business name and its corresponding selection relay services coding.
After via node receives described relay services coding assignment response message, described relay services coding point Join response message and include available relay services name and its corresponding available relay services coding, And described available relay services encode corresponding effect duration duration；Described available relay services name Word can have one or two or more；Available relay services coding and its effect duration duration, It is one-to-one relation with described available relay services name.Via node can be according to practical situation One or more selection relay services names are selected from providing, in providing it corresponding relay services name Following the service is engaged in, and then obtains from relay services name and its corresponding selection relay services coding.
Step 704, described selection relay services coding effect duration duration in, broadcast described from relaying The described selection relay services of Services Code and distribution encode corresponding address.
Via node can be broadcasted from relay services coding to each, so that neighbouring remote terminal knows this Via node can provide this each select relay services to encode corresponding various relay services, also broadcast simultaneously Select relay services to encode the address distributed one by one for each, select to adopt certain in order to neighbouring remote terminal When encoding corresponding relay services from relay services, select relay services coding corresponding by this address with this Via node communicated, obtain the corresponding relay services in this address.
Via node in D2D network, when opening relay services, can be carried out step 701-704, obtains Obtain the selection relay services coding of via node；And the described selection that will be encoded from relay services and distribute Relay services encode corresponding address broadcast and go out, and the remote terminal of surrounding can be listened to.
Step 705, remote terminal send relay services coding to remote terminal attaching server and monitor request message； Described relay services coding is monitored request message and is included remote terminal iidentification and remote terminal positional information.
Remote endpoint registration, to after EPS, is set up IP and is connected.Remote terminal can determine to carry out at any time Step 705 is to obtain object relay service name and its corresponding object relay Services Code, to remove When wireless coverage, can be using the relay services of object relay Services Code corresponding via node offer Continue access network.
Remote terminal is passed through EPS and is sent relay services coding monitoring request message to remote terminal attaching server, please This remote terminal attaching server is asked to return remote terminal surrounding available relay services name and its corresponding available Relay services encode.
Step 706, remote terminal attaching server receive described relay services coding and monitor request message, and When determining that the corresponding CAMEL-Subscription-Information of described remote terminal iidentification allows by via node access network, to relaying section Point attribution server forwards described relay services coding to monitor request message.
When accessing D2D network, remote terminal can be arranged in the remote terminal attaching server of server remote terminal Good CAMEL-Subscription-Information.After remote terminal attaching server receives relay services coding monitoring request message, first determine Whether the corresponding CAMEL-Subscription-Information of described remote terminal iidentification allows by via node access network however, it is determined that described The remote corresponding CAMEL-Subscription-Information of terminal iidentification allows to pass through via node access network, and remote terminal attaching server is Described relay services can be encoded monitoring request message and be transmitted to via node attribution server.
Concrete repeating process has following two situations：
The first situation, described remote terminal attaching server is in third-party application or special authorized organization With the device of remote terminal interaction, via node attribution server is third-party application or special authorized organization In the device that interacts with via node.Described remote terminal attaching server and described via node attribution server Constitute third-party application or special authorized organization.Now, described remote terminal attaching server can be directly Described relay services are encoded monitoring request message and is transmitted to via node attribution server.
Second situation, described remote terminal attaching server is remote terminal attaching short-range communication server, in Continue node-home Server Relay node-home short-range communication server；Now described relay services coding prison The remote terminal positional information in request message is listened to be currently resident PLMN；Described remote terminal attaching server I.e. described relay services can be encoded to monitor request message and be transmitted to and work as by remote terminal attaching short-range communication server Via node ownership short-range communication server under front resident PLMN.
In the latter case, described relay services encode the remote terminal positional information monitoring in request message also The PLMN of the surrounding that can arrive for the currently resident PLMN of remote terminal and remote terminal monitoring；Then described remote Terminal attaching server is that the coding monitoring of described relay services can be asked by remote terminal attaching short-range communication server Message is asked to be transmitted to the ownership short-range communication server of the via node under currently resident PLMN, Yi Jiyuan Via node ownership short-range communication server under the PLMN of the surrounding that terminal monitoring arrives.
Step 707, via node attribution server receive described relay services coding and monitor request message, and Send relay services coding snoop responses message to described remote terminal attaching server.
Via node attribution server has obtained and described via node attribution server in step 701-702 The via node available relay services name of signing and available relay services coding, then via node After attribution server receives described relay services coding monitoring request message, will inquire about these via nodes can The relay services name providing and available relay services coding obtain the available relaying of described remote terminal surrounding Service name and its corresponding available relay services coding, optionally, if relaying section described in step 702 Point attribution server is also available relay services coding assignment effect duration duration, then described available in Continue Services Code also to should have effect duration duration.Then, described via node attribution server will be to described Remote terminal attaching server sends relay services coding snoop responses message, and described relay services coding is monitored and rung Message is answered to include described available relay services name and its corresponding available relay services coding, optionally, Also include described available relay services and encode corresponding effect duration duration.
If described via node attribution server is to save with relaying in third-party application or special authorized organization The device of point interaction, then the positional information sieve that described via node attribution server can first according to described remote terminal Select remote terminal surrounding available relay services name, and then obtain described available relay services name and correspond to Available relay services coding.If described via node attribution server is via node, ownership is closely led to Telecommunications services device, then directly by the via node ownership short-range communication clothes under PLMN in remote terminal positional information The via node available relay services name that business device obtains its signing is remote terminal available relay services name Word, and then obtain the corresponding available relay services coding of described available relay services name.Then, respectively Via node ownership short-range communication server will send relay services to described remote terminal attaching server and compile Code snoop responses message.
When described remote terminal positional information includes currently resident PLMN, described relay services coding is monitored Response message include under the resident PLMN of remote terminal remote terminal available relay services name and its corresponding can Relay services encode.Include currently resident PLMN and remote terminal in described remote terminal positional information During the surrounding PLMN listening to, described relay services coding snoop responses message includes each PLMN and each Remote terminal available relay services name and its corresponding available relay services coding under PLMN, optionally, Also include the corresponding effect duration duration of described object relay Services Code.
Step 708, remote terminal attaching server receive described relay services and encode snoop responses message, and will Described relay services coding snoop responses message is transmitted to described remote terminal.
Step 709, remote terminal receive described relay services and encode snoop responses message, from described relay services Object relay service name and its corresponding object relay clothes that user selects are obtained in coding snoop responses message Business coding.
Remote terminal can show that described relay services encode the available relay services name in snoop responses message Word, user selects object relay service name from available relay services name, and remote terminal just can obtain Take object relay service name, and then be obtained with the described object relay service corresponding object relay of name Services Code.Optionally, remote terminal can also show the corresponding PLMN of available relay services name, User can select object relay service name according to PLMN.
Remote terminal can also show the object relay service name of selection, makes user see that remote terminal selects to adopt Relay services name, display relay services name is more convenient than the relay services showing 64 bits encode, Also it is more suitable for user to check.
Step 710, remote terminal are will remove covering, or when having moved out covering, begin listening for The selection relay services coding of broadcast and described selection relay services encode corresponding address.
Remote terminal will remove covering, or when remote terminal has moved out covering, remote terminal needs to pass through Via node access network is communicated, then the selection relay services coding in beginning listening for broadcasting.In step In 704, via node can be broadcasted corresponding from relay services coding and described selection relay services coding Address, so remote terminal just can listen to selection relay services coding and the institute of broadcast in step 710 State and encode corresponding address from relay services.
Step 711, in the effect duration duration of described object relay Services Code, listen to and described target When the consistent selection relay services of relay services coding encode, right to described consistent selection relay services coding The address answered sends communication request.
In the effect duration duration of described object relay Services Code, listen to and compile with described object relay service When the consistent selection relay services of code encode, show have via node to provide described target within this time period Relay services encode corresponding relay services, and now remote terminal will be compiled to described consistent selection relay services The corresponding address of code sends communication request, and described consistent selection relay services encode corresponding address and are institute State the layer double-address of the relay services that the consistent corresponding via node of selection relay services coding provides；Far whole End thinks that the corresponding via node in this address sends communication request, asks this via node to provide this relaying for it Service, this via node agree to after provide after this relay services for remote terminal, described remote terminal just with this in The node that continues establishes D2D and connects, and remote terminal just can pass through this via node access network.
Here it should be noted that the present embodiment method can also be step 601-604 and step 705-711 The method flow of combination or the method flow of step 701-704 and the combination of step 605-611, tool Body step may be referred to above-mentioned steps flow process, will not be described in detail herein.
Embodiment 3,
The embodiment of the present invention additionally provides a kind of remote terminal, as shown in figure 8, described remote terminal includes：First Transmitting element 801, the first receiving unit 802, first processing units 803, monitoring unit 804, wherein,
First transmitting element 801, monitors request message, described relay services for sending relay services coding Coding is monitored request message and is included remote terminal iidentification and remote terminal positional information；
First receiving unit 802, for receiving relay services coding snoop responses message；Described relay services Coding snoop responses message includes remote terminal available relay services name and its corresponding available middle following the service Business coding；
First processing units 803, for the described relay services receiving from described first receiving unit 802 Object relay service name and its corresponding object relay clothes that user selects are obtained in coding snoop responses message Business coding；
Monitoring unit 804, the selection relay services coding for listening broadcast and described selection relay services Encode corresponding address；
First transmitting element 801, is additionally operable to listen to and the described first process list in described monitoring unit 804 During the consistent selection relay services coding of the described object relay Services Code of unit 803 acquisition, to described consistent The corresponding address of selection relay services coding send communication request.
Optionally, described relay services coding monitors the object relay clothes also including user's selection in request message Business name；Then remote terminal available relay services name described in described relay services coding snoop responses message Service name for object relay, described available relay services are encoded to object relay Services Code.
Optionally, also include described relay services coding in described relay services coding snoop responses message to monitor Relay services in response message encode corresponding effect duration duration；
Described first transmitting element 801, specifically for the effect duration duration in described object relay Services Code Interior, described monitoring unit 804 listens to the described object relay clothes obtaining with described first processing units 803 When the consistent selection relay services of business coding encode, to described consistent selection relay services coding correspondingly Location sends communication request.
Optionally, described positional information includes the currently resident PLMN of remote terminal, or, described remote terminal The PLMN of the surrounding that positional information includes the currently resident PLMN of remote terminal and remote terminal monitoring arrives；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
The embodiment of the present invention additionally provides a kind of remote terminal attaching server, and this remote terminal attaching server is permissible It is the device with remote terminal interaction in third-party application or special authorized organization；Or with remote terminal interaction Remote terminal attaching short-range communication server, as shown in figure 9, described remote terminal attaching server includes： Second receiving unit 901 and the second transmitting element 902, wherein,
Second receiving unit 901, monitors request message, described relay services for receiving relay services coding Coding is monitored request message and is included remote terminal iidentification and remote terminal positional information；
Second transmitting element 902, in the remote terminal iidentification determining that described second receiving unit 901 receives When corresponding CAMEL-Subscription-Information allows by via node access network, forwarding described relay services coding to monitor please Seek message；
Second receiving unit 901, is additionally operable to receive relay services coding snoop responses message, described middle following the service Business coding snoop responses message includes the available relay services name of described remote terminal and its corresponding available Relay services encode；
Second transmitting element 902, is additionally operable to forward described relay services coding snoop responses message.
Optionally, described relay services coding monitoring request message includes object relay service name, then institute State remote terminal available relay services name described in relay services coding snoop responses message to take for object relay Business name, described available relay services are encoded to object relay Services Code.
Optionally, also include described relay services coding in described relay services coding snoop responses message to monitor Relay services in response message encode corresponding effect duration duration.
Optionally, described remote terminal positional information includes the currently resident PLMN of remote terminal, or, described Remote terminal positional information includes the surrounding PLMN that currently resident PLMN and remote terminal monitoring arrive；Then,
Described second transmitting element 902, returns for the via node under the PLMN resident to described remote terminal Belonging to short-range communication server forwards described relay services coding to monitor request message；Or, to described remote end Hold the via node ownership short-range communication under the surrounding PLMN that resident PLMN and remote terminal monitoring arrive Server forwards described relay services coding to monitor request message；Include remote end in described remote terminal positional information In the case of holding the PLMN of surrounding that currently resident PLMN and remote terminal monitoring arrive, described middle following the service Business coding snoop responses message includes remote terminal available relay services name under each PLMN and each PLMN Word and its corresponding available relay services coding.
The embodiment of the present invention additionally provides a kind of via node attribution server, this via node attribution server It can be the module interacting with via node in third-party application or special authorized organization；Or with relaying The short-range communication server of the via node ownership of node interaction, as shown in Figure 10, described via node is returned Belong to server to include：3rd receiving unit 1001, second processing unit 1002 and the 3rd transmitting element 1003, Wherein,
3rd receiving unit 1001, for receiving relay services coding assignment request message, described relay services Coding assignment request message includes via node mark；
Second processing unit 1002, in the relaying section determining that described 3rd receiving unit 1001 receives When the corresponding CAMEL-Subscription-Information of point identification allows to provide relay services, during acquisition described via node mark is corresponding The node that continues available relay services name is that described available relay services name distribution is corresponding to be carried For relay services coding；
3rd transmitting element 1003, for sending relay services coding assignment response message, described relay services Coding assignment response message includes described available relay services name and second processing unit 1002 The corresponding available relay services coding of distribution；
Described 3rd receiving unit 1001, be additionally operable to receive relay services coding monitor request message, described in The Services Code that continues is monitored request message and is included remote terminal iidentification and remote terminal positional information；
Described 3rd transmitting element 1003, be additionally operable to send relay services coding snoop responses message, described in The remote terminal that the Services Code snoop responses message that continues is included according to described remote terminal positional information acquisition is available The corresponding relay services of relay services name encode.
Optionally, also include in described relay services coding assignment request message via node mark corresponding in The node that continues available relay services name.
Optionally, described second processing unit 1002, specifically for identifying corresponding label from described via node About obtain described via node mark corresponding via node available relay services name in information.
Optionally, also include described relay services coding assignment in described relay services coding assignment response message Relay services in response message encode corresponding effect duration duration；Described relay services coding snoop responses disappear When also including the relay services that described relay services encode in snoop responses message in breath and encoding corresponding effect duration Long.
Optionally, described remote terminal positional information includes the currently resident PLMN of remote terminal, or, described Remote terminal positional information includes the surrounding PLMN that currently resident PLMN and remote terminal monitoring arrive；Then, PLMN around described remote terminal positional information includes currently resident PLMN and remote terminal monitoring arrives When, described relay services coding snoop responses message includes that under each PLMN and each PLMN, remote terminal can Relay services name and its corresponding available relay services coding.
The embodiment of the present invention additionally provides a kind of via node, and as shown in figure 11, described via node includes： 4th transmitting element 1101, the 4th receiving unit 1102, the 3rd processing unit 1103 and radio unit 1104, Wherein,
4th transmitting element 1101, for sending relay services coding assignment request message, described relay services Coding assignment request message includes via node mark；
4th receiving unit 1102, for receiving relay services coding assignment response message, described relay services Coding assignment response message includes available relay services name and its corresponding available relay services are compiled Code；
3rd processing unit 1103, for the relay services coding receiving from described 4th receiving unit 1102 Obtain in assignment response message from relay services name and its corresponding selection relay services coding；
Radio unit 1104, for broadcasting following the service in the described selection that described 3rd processing unit 1103 obtains The described selection relay services of business coding and distribution encode corresponding address.
Optionally, also include from relay services name in described relay services coding assignment request message；Then, In described relay services coding assignment response message, available relay services name is from relay services name, Described available relay services are encoded to from relay services coding.
Optionally, also include described relay services coding assignment in described relay services coding assignment response message Relay services in response message encode corresponding effect duration duration, then, and described radio unit 1104, and specifically For in the effect duration duration that described selection relay services encode, broadcast described selection relay services coding with And the described selection relay services of distribution encode corresponding address.
In actual applications, the first transmitting element 801 in the present embodiment, the first receiving unit 802, first Processing unit 803, monitoring unit 804 can be by the central processing unit (CPU) in remote terminal, microprocessors (MPU), the device such as digital signal processor (DSP) or field programmable gate array (FPGA) is realized. Second receiving unit 901 and the second transmitting element 902 can be by third-party application or special authorized organizations Or by the central processing unit (CPU) on the short-range communication server of remote terminal attaching, microprocessor (MPU), the device such as digital signal processor (DSP) or field programmable gate array (FPGA) is realized. 3rd receiving unit 1001, second processing unit 1002 and the 3rd transmitting element 1003 can be answered by third party With or special authorized organization or the short-range communication server that belonged to by via node on central authorities' process Device (CPU), microprocessor (MPU), digital signal processor (DSP) or field programmable gate array Etc. (FPGA) device is realized；4th transmitting element 1101, the 4th receiving unit the 1102, the 3rd process single Unit 1103 and radio unit 1104 can be by the central processing unit (CPU) on via node, microprocessors (MPU), the device such as digital signal processor (DSP) or field programmable gate array (FPGA) is realized.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can using hardware embodiment, software implementation or combine software and The form of the embodiment of hardware aspect.And, the present invention can adopt and wherein include calculating one or more Computer-usable storage medium (including but not limited to disk memory and the optical storage of machine usable program code Device etc.) the upper computer program implemented form.
The present invention is with reference to method according to embodiments of the present invention, equipment (system) and computer program Flow chart and/or block diagram describing.It should be understood that can be by computer program instructions flowchart and/or side Each flow process in block diagram and/or the knot of the flow process in square frame and flow chart and/or block diagram and/or square frame Close.Can provide these computer program instructions to general purpose computer, special-purpose computer, Embedded Processor or The processor of other programmable data processing device with produce a machine so that by computer or other can The instruction of the computing device of programming data processing equipment produces for realizing in one flow process or multiple of flow chart The device of the function of specifying in flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide computer or other programmable data processing device So that being stored in this computer-readable memory in the computer-readable memory working in a specific way Instruction produces the manufacture including command device, and this command device is realized in one flow process of flow chart or multiple stream The function of specifying in journey and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makes Obtain and series of operation steps executed on computer or other programmable devices to produce computer implemented process, Thus the instruction of execution is provided for realizing in one flow process of flow chart on computer or other programmable devices Or the step of the function of specifying in multiple flow process and/or one square frame of block diagram or multiple square frame.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the protection model of the present invention Enclose.

Claims (32)

1. in a kind of device-to-device network the system of selection of via node it is characterised in that methods described bag Include：
Send relay services coding and monitor request message, described relay services coding is monitored request message and included Remote terminal iidentification and remote terminal positional information；
Receive relay services coding snoop responses message；Described relay services coding snoop responses message includes Remote terminal available relay services name and its corresponding available relay services coding, described relay services name Word is readable character string；
From described relay services encode snoop responses message obtain user select object relay service name and Its corresponding object relay Services Code；
The selection relay services coding of listening broadcast and described selection relay services encode corresponding address；And When listening to consistent with described object relay Services Code selection relay services coding, to described consistent Send communication request from the corresponding address of relay services coding.
2. method according to claim 1 is it is characterised in that described relay services coding monitors request The object relay service name of user's selection is also included in message；Then described relay services coding snoop responses disappear Remote terminal available relay services name described in breath services name, described available middle following the service for object relay Business is encoded to object relay Services Code.
3. method according to claim 1 is it is characterised in that described relay services encode snoop responses Also include described relay services in message and encode the relay services coding corresponding effect duration in snoop responses message Duration；Then, described when listening to consistent with described object relay Services Code selection relay services coding, Send communication request to the described consistent corresponding address of selection relay services coding, including：
In the effect duration duration of described object relay Services Code, listen to and compile with described object relay service When the consistent selection relay services of code encode, encode corresponding address to described consistent selection relay services and send out Send communication request.
4. method according to claim 1 it is characterised in that described positional information include remote terminal work as Front resident public land mobile network PLMN, or, described remote terminal positional information includes remote terminal and works as The PLMN of the surrounding that front resident PLMN and remote terminal monitoring arrive；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
5. in a kind of device-to-device network the system of selection of via node it is characterised in that methods described bag Include：
Receive relay services coding and monitor request message, described relay services coding is monitored request message and included Remote terminal iidentification and remote terminal positional information；
When determining that the corresponding CAMEL-Subscription-Information of described remote terminal iidentification allows by via node access network, turn Coding monitors request message to send out relay services described；
Receive and forward relay Services Code snoop responses message, described relay services encode snoop responses message Include the available relay services name of described remote terminal and its corresponding available relay services coding, described Relay services name is readable character string.
6. method according to claim 5 is it is characterised in that described relay services coding monitors request Message includes object relay service name, then far whole described in described relay services coding snoop responses message Available relay services name is held to service name for object relay, described available relay services are encoded to target Relay services encode.
7. method according to claim 5 is it is characterised in that described relay services encode snoop responses Also include described relay services in message and encode the relay services coding corresponding effect duration in snoop responses message Duration.
8. method according to claim 5 is it is characterised in that described remote terminal positional information includes far The currently resident PLMN of terminal, or, described remote terminal positional information include currently resident PLMN with And the surrounding PLMN that far terminal monitoring arrives；
Then, described forwarding described relay services coding monitoring request message, including：
Forward described to the via node ownership short-range communication server under the resident PLMN of described remote terminal Relay services coding monitors request message；
Or,
Via node under the surrounding PLMN arriving to the resident PLMN of described remote terminal and remote terminal monitoring Ownership short-range communication server forwards described relay services coding to monitor request message；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
9. in a kind of device-to-device network the system of selection of via node it is characterised in that methods described bag Include：
Receive relay services coding assignment request message, described relay services coding assignment request message includes Via node identifies；
When determining that the corresponding CAMEL-Subscription-Information of described via node mark allows to provide relay services, obtain described Via node identifies corresponding via node available relay services name, is described available middle following the service The corresponding available relay services coding of business name distribution, and send relay services coding assignment response message, Described relay services coding assignment response message includes described available relay services name and its corresponding Available relay services coding, described relay services name is readable character string；
Receive relay services coding and monitor request message, described relay services coding is monitored request message and included Remote terminal iidentification and remote terminal positional information；
Send relay services coding snoop responses message, described relay services coding snoop responses message includes Compiled according to the corresponding relay services of remote terminal available relay services name that described remote terminal positional information obtains Code.
10. method according to claim 9 is it is characterised in that described relay services coding assignment please Ask and in message, also include via node mark corresponding via node available relay services name.
11. methods according to claim 9 are it is characterised in that described acquisition described via node mark Know corresponding via node available relay services name, including：
Identify from described via node and corresponding CAMEL-Subscription-Information, obtain the described via node corresponding relaying of mark Node available relay services name.
12. methods according to claim 9 are it is characterised in that described relay services coding assignment is rung The relay services also including in described relay services coding assignment response message in message are answered to encode corresponding effective Phase duration；Described relay services coding snoop responses are also included in described relay services coding snoop responses message Relay services in message encode corresponding effect duration duration.
13. methods according to claim 9 are it is characterised in that described remote terminal positional information includes The remote currently resident public land mobile network PLMN of terminal, or, described remote terminal positional information includes The surrounding PLMN that currently resident PLMN and remote terminal monitoring arrive；
Then, include, in described remote terminal positional information, the week that currently resident PLMN and remote terminal monitoring arrive When enclosing PLMN, described relay services coding snoop responses message includes each PLMN and each PLMN The remote available relay services name of terminal and its corresponding available relay services coding down.
In a kind of 14. device-to-device networks, the system of selection of via node is it is characterised in that methods described Including：
Send relay services coding assignment request message, described relay services coding assignment request message includes Via node identifies；
Receive relay services coding assignment response message, described relay services coding assignment response message includes can The relay services name providing and its corresponding available relay services encode, and described relay services name is Readable character string；
Obtain from relay services name and its corresponding choosing from described relay services coding assignment response message Encoded with relay services；
Broadcast described selection relay services coding and the described selection relay services of distribution encode corresponding address.
15. methods according to claim 14 are it is characterised in that described relay services coding assignment please Ask in message and also include from relay services name；Then, can in described relay services coding assignment response message The relay services name providing is from relay services name, and described available relay services are encoded to selection Relay services encode.
16. methods according to claim 14 are it is characterised in that described relay services coding assignment is rung The relay services also including in described relay services coding assignment response message in message are answered to encode corresponding effective Phase duration, then the described described selection relay services coding broadcasting described selection relay services coding and distribution Corresponding address, including：
In the effect duration duration of described selection relay services coding, broadcast described selection relay services coding with And the described selection relay services of distribution encode corresponding address.
A kind of 17. remote terminals are it is characterised in that described remote terminal includes：
First transmitting element, monitors request message, described relay services coding for sending relay services coding Monitor request message and include remote terminal iidentification and remote terminal positional information；
First receiving unit, for receiving relay services coding snoop responses message；Described relay services coding Snoop responses message includes remote terminal available relay services name and its corresponding available relay services are compiled Code, described relay services name is readable character string；
First processing units, the described relay services coding for receiving from described first receiving unit is monitored Object relay service name and its corresponding object relay Services Code that user selects is obtained in response message；
First monitoring unit, the selection relay services coding for listening broadcast and described selection relay services Encode corresponding address；
First transmitting element, is additionally operable to listen in described first monitoring unit and is obtained with described first processing units During the consistent selection relay services coding of the described object relay Services Code that takes, to described consistent from The corresponding address of the Services Code that continues sends communication request.
18. remote terminals according to claim 17 are it is characterised in that described relay services coding is monitored The object relay service name of user's selection is also included in request message；Then described relay services coding is monitored and is rung Answer remote terminal available relay services name described in message for object relay service name, described available in Following the service business is encoded to object relay Services Code.
19. remote terminals according to claim 17 are it is characterised in that described relay services coding is monitored Also include in response message that relay services coding that described relay services encode in snoop responses message is corresponding to be had Effect phase duration；
Described first transmitting element, specifically in the effect duration duration of described object relay Services Code, Described first monitoring unit listens to the described object relay Services Code one obtaining with described first processing units During the selection relay services coding causing, send logical to the described consistent corresponding address of selection relay services coding Letter request.
20. remote terminals according to claim 17 are it is characterised in that described positional information includes remote end Hold currently resident public land mobile network PLMN, or, described remote terminal positional information includes remote end Hold currently resident PLMN and the PLMN of surrounding that remote terminal monitoring arrives；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
A kind of 21. remote terminal attaching servers are it is characterised in that described remote terminal attaching server includes：
Second receiving unit, monitors request message, described relay services coding for receiving relay services coding Monitor request message and include remote terminal iidentification and remote terminal positional information；
Second transmitting element, in the corresponding label of remote terminal iidentification determining that described second receiving unit receives When about information allows by via node access network, described relay services coding is forwarded to monitor request message；
Second receiving unit, is additionally operable to receive relay services coding snoop responses message, described relay services are compiled Code snoop responses message includes the available relay services name of described remote terminal and its corresponding available relaying Services Code, described relay services name is readable character string；
Second transmitting element, is additionally operable to forward described relay services coding snoop responses message.
22. remote terminal attaching servers according to claim 21 are it is characterised in that described middle following the service Business coding is monitored request message and is included object relay service name, then described relay services encode snoop responses Remote terminal available relay services name described in message services name, described available relaying for object relay Services Code is object relay Services Code.
23. remote terminal attaching servers according to claim 21 are it is characterised in that described middle following the service Also include described relay services in business coding snoop responses message and encode the relay services volume in snoop responses message The corresponding effect duration duration of code.
24. remote terminal attaching servers according to claim 21 are it is characterised in that described remote terminal Positional information includes the currently resident public land mobile network PLMN of remote terminal, or, described remote terminal Positional information includes the surrounding PLMN that currently resident PLMN and remote terminal monitoring arrive；Then,
Described second transmitting element, near for the via node ownership under the PLMN resident to described remote terminal Distance communication service device forwards described relay services coding to monitor request message；Or, stay to described remote terminal Via node ownership short-range communication service under the surrounding PLMN that the PLMN staying and remote terminal monitoring arrive Device forwards described relay services coding to monitor request message；
Include the currently resident PLMN of remote terminal in described remote terminal positional information and remote terminal monitoring arrives Around PLMN in the case of, described relay services coding snoop responses message include each PLMN and Remote terminal available relay services name and its corresponding available relay services coding under each PLMN.
A kind of 25. via node attribution servers are it is characterised in that described via node attribution server bag Include：
3rd receiving unit, for receiving relay services coding assignment request message, described relay services coding Allocation request message includes via node mark；
Second processing unit, in the via node mark correspondence determining that described 3rd receiving unit receives CAMEL-Subscription-Information when allowing to provide relay services, obtain described via node and identify corresponding via node and can carry For relay services name, be that described available relay services name distributes corresponding available middle following the service Business coding, described relay services name is readable character string；
3rd transmitting element, for sending relay services coding assignment response message, described relay services coding Assignment response message includes described available relay services name and its corresponding available relay services Coding；
Described 3rd receiving unit, is additionally operable to receive relay services coding monitoring request message, described middle following the service Business coding is monitored request message and is included remote terminal iidentification and remote terminal positional information；
Described 3rd transmitting element, is additionally operable to send relay services coding snoop responses message, described middle following the service Business coding snoop responses message includes the available relaying of remote terminal obtaining according to described remote terminal positional information Service name corresponding relay services coding.
26. via node attribution servers according to claim 25 are it is characterised in that described relaying The via node mark available middle following the service of corresponding via node is also included in Services Code allocation request message Business name.
27. via node attribution servers according to claim 25 it is characterised in that
Described second processing unit, obtains specifically for identifying in corresponding CAMEL-Subscription-Information from described via node Described via node identifies corresponding via node available relay services name.
28. via node attribution servers according to claim 25 are it is characterised in that described relaying The relay services in described relay services coding assignment response message are also included in Services Code assignment response message Encode corresponding effect duration duration；Described middle following the service is also included in described relay services coding snoop responses message Relay services in business coding snoop responses message encode corresponding effect duration duration.
29. via node attribution servers according to claim 25 are it is characterised in that described remote end End position information includes the currently resident public land mobile network PLMN of remote terminal, or, described remote end End position information includes the surrounding PLMN that currently resident PLMN and remote terminal monitoring arrive；
Then, include, in described remote terminal positional information, the week that currently resident PLMN and remote terminal monitoring arrive When enclosing PLMN, described relay services coding snoop responses message includes each PLMN and each PLMN The remote available relay services name of terminal and its corresponding available relay services coding down.
A kind of 30. via nodes are it is characterised in that described via node includes：
4th transmitting element, for sending relay services coding assignment request message, described relay services coding Allocation request message includes via node mark；
4th receiving unit, for receiving relay services coding assignment response message, described relay services coding Assignment response message includes available relay services name and its corresponding available relay services coding, Described relay services name is readable character string；
3rd processing unit, the relay services coding assignment response for receiving from described 4th receiving unit disappears Obtain in breath from relay services name and its corresponding selection relay services coding；
Radio unit, for broadcast the described selection relay services coding that described 3rd processing unit obtains and The described selection relay services of distribution encode corresponding address.
31. via nodes according to claim 30 are it is characterised in that described relay services coding divides Join in request message and also include from relay services name；Then, described relay services coding assignment response message In available relay services name be from relay services name, described available relay services are encoded to From relay services coding.
32. via nodes according to claim 30 are it is characterised in that described relay services coding divides Join the relay services coding also including in described relay services coding assignment response message in response message corresponding Effect duration duration, then,
Described radio unit, specifically for, in the effect duration duration that described selection relay services encode, broadcasting The described selection relay services of described selection relay services coding and distribution encode corresponding address.
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