CN103533500A

CN103533500A - Communication method, device and system of neighboring terminals

Info

Publication number: CN103533500A
Application number: CN201210230226.1A
Authority: CN
Inventors: 谢宝国; 李志军
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-07-04
Filing date: 2012-07-04
Publication date: 2014-01-22
Also published as: WO2014005536A1

Abstract

The invention discloses a communication method of neighboring terminals. The communication method comprises the step that after receiving a communication service request which is initiated by a terminal, a network side allocates device-to-device (D2D) communication service resources to the terminal and an opposite-end terminal when the network side confirms that communication between the terminal and the opposite-end terminal with which the terminal is to establish communication satisfy conditions of device-to-device (D2D) communication, such that the device-to-device (D2D) communication can be established between the terminal and the opposite-end terminal. The communication method may comprise the step that after the terminal and the opposite-end terminal with which the terminal is to establish communication receive the device-to-device (D2D) communication service resources allocated by the network side, the device-to-device (D2D) communication is established between the terminal and the opposite-end terminal. The invention also discloses a communication device of the neighboring terminals which is used for realizing the above method and a system comprising the above communication device of the neighboring terminals. With the communication method, device and system of the neighboring terminals of the invention adopted, the impact of parts of data traffic of device-to-device (D2D) terminals on the network side can be decreased, and the robustness and processing capability of the network can be greatly enhanced.

Description

The communication means of adjacent terminal end and device, system

Technical field

The present invention relates to the communication technology of adjacent terminal end, relate in particular to a kind of communication means of adjacent terminal end and device, system.

Background technology

In mobile communication, communication can occur in subscriber equipment (UE, User Equipment) between (also referred to as terminal or user terminal) and application server (AS, Application Server), also may occur between two subscriber equipmenies.Communication between two subscriber equipmenies, may pass through AS transfer, may be also that between two subscriber equipmenies, the IP traffic by end to end carries out.

Grouping (PS, Packet Service) network provides IP-based data communication.The IP allocation entity of the IP address of UE in network is responsible for, and all IP traffics all need through this IP allocation entity.

Fig. 1 is the configuration diagram that UE is linked into 3GPP wireless network packet domain, as shown in Figure 1, this framework includes following network element: UE, UMTS Terrestrial radio access network (UTRAN, UMTS Terrestrial Radio Access Network), land radio access web (the E-UTRAN of evolution, Evolved UMTS), Serving GPRS Support Node (SGSN, Serving GPRS Supporting Node), Mobility Management Entity (MME, Mobile Management Entity), attaching position register (HLR, Home Location Register)/home subscriber server (HSS, Home Subscriber Server), gateway (SGW, Serving Gateway), grouped data network gateway (PGW, Packet Data Network Gateway), Gateway GPRS Support Node (GGSN, Gateway GPRS Supporting Node), AS.Wherein, PGW, GGSN are respectively the IP allocation entity under E-UTRAN, UTRAN/GERAN, GGSN, PGW can be referred to as to public data network gateway.

UE can be linked into core net by UMTS, E-UTRAN, is assigned with behind IP address, and ability realization and AS, other-end carry out IP data communications.In communication process, IP traffic is forwarded to public data network gateway (GGSN/PGW) through base station, and then by GGSN/PGW according to IP routing rule, send to AS, destination UE.Wherein, UE arrives base station, base station to the communication between public data network gateway (GGSN/PGW), is not based on IP routing rule, but based on exclusive data tunnel route technology.In whole communication process, the information of not perception of base station IP layer, such as the information such as IP address, port of UE is not known in, base station.

Fig. 2 is the flow chart that UE is linked into EPS network, as shown in Figure 2, comprises the following steps:

Step 101, UE selects to serve eNodeB in community, to eNodeB, initiates access request (adhering to request), carried terminal sign IMSI (International Mobile Subscriber Identification Number) in request.ENodeB selects the MME of a service, and this access request is sent to MME.

Step 102, MME sends position updating request to HSS, carried terminal sign IMSI, the subscription data of requesting terminal upgrades.

Step 103, HSS, according to terminal iidentification IMSI, sends to MME by corresponding terminal unit contractual data.

Step 104, MME carries out authentication to terminal, if allow terminal access, just according to APN, selects SGW/PGW media data gateway, then to SGW/PGW, initiates carrying and sets up, and PGW is terminal distribution IP address and bearing resource, and finally sets up core net user plane bearer.

Step 105～step 106, MME sends access grant message (adhering to acceptance) to eNodeB, and eNodeB is that terminal is set up radio bearer, and the success of notification terminal access network.

Along with smart mobile phone extensive use, in mobile network, transmission of media data stream is more and more frequent.Particularly outstanding, along with social activity application and location-based communications applications become more and more popular, in same region, the data traffic of (under same base station, within the scope of adjacent base station) is increasing.These flows all need to travel back across the public data network gateway (GGSN/PGW) of core net, greatly increased return bandwidth requirement, increase the time delay of IP communication, also strengthened the load burden of base station (E-UTRAN) and public data network gateway (GGSN/PGW).And along with mobile broadbandization is more and more deep, growing IP traffic amount is also had higher requirement to the public data network gateway (GGSN/PGW) of wireless base station (E-UTAN) and core net.

For increasing problems of liquid flow, need to carry out necessary shunting to specific IP flow, to alleviate to the load of common data gateway (GGSN/PGW) and to the signaling of core net, impact.The mode that existing scheme can adopt base station to shunt, the IP data of UE access IT website can directly be linked into external data gateway by base station.

Therefore along with the explosive growth of smart mobile phone, network cannot meet IP traffic growth demand gradually, and how solving impact that growing IP flow brings network and being needs the problem that solves at present.Industry is being discussed at present between terminal and is being adopted Long Term Evolution (LTE, Long Term Evolution) radio band directly to set up the mode (LTE Direct communication) of communication.The terminal of geographically closing on (such as: within the scope of 1Km), utilize operator's LTE frequency spectrum resource to set up point-to-point direct-connected radio communication.The direct-connected communication of terminal room is a kind of emerging wireless communications mode, the terminal that realizes direct-connected communication is also a kind of novel direct-connected communication (D2D, Direct to Direct communication) terminal, this just needs 3GPP network support to be linked into network to this D2D terminal, the mobile management that this D2D terminal is strengthened, D2D authentication and Resource Allocation in Networks etc., the connection control method and the system that need new definition adjacent terminal end, guarantee under network control, to realize between adjacent terminal end the IP communication of direct-connected data link.

Consider to alleviate the traffic load of network side, the terminal that needs to realize in close region adopts LTE radio band to carry out direct communication, and IP traffic is without base station and core net loopback, to alleviate the traffic load of network side.One of the scene that Fig. 3-1 is D2D communication schematic diagram, it is supported between UE1 and UE2 and sets up direct-connected communication link, and two D2D terminals directly communicate.This communication adopts the burst technology that increases power by tune, and similar Wireless Fidelity (WIFI, Wireless Fidelity) broadcast mechanism is realized mutually and being found, then under network control, set up the direct data communication of D2D terminal room, the transmitting-receiving of IP packet is without base station and core net.

By base station, carry out the mode of IP data distribution, greatly alleviated the load of core network packet data gateway, but core net is still passed through in the IP communication between D2D terminal, therefore need to further be optimized, make to be linked between the adjacent terminal end of base station communication as far as possible without core net, the IP that only just can set up terminal room by base station communicates by letter.Fig. 3-2 are two schematic diagrames of the scene of D2D communication, that the another kind that D2D terminal communicates is optimized scene, D2D terminal seeks to adopt IP packet local exchange (LS, Local Switch) scheme is set up communication, D2D terminal can adopt the LTE frequency range of distribution to be linked into local wireless IAD, as microcellulor relaying (Relay), macrocellular eNodeB etc., by local wireless IAD, be responsible for carrying out IP packet loopback, without core net, carry out IP data packet transmission.But above-mentioned communication mode is only also in conceptual phase, specific implementation how, not yet has the related art scheme can be for reference at present.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of communication means of adjacent terminal end and device, system, can provide the communication service without core net for terminal adjacent to one another, to alleviate the impact of the data traffic of explosive growth to network side.

For achieving the above object, technical scheme of the present invention is achieved in that

A communication means for adjacent terminal end, described method comprises:

Network side receives after the communication services request of terminal initiation, determine that described terminal and described terminal wish set up while meeting the condition of D2D between the distant terminal of communication, for described terminal and described distant terminal distribution D2D communication service resource, make described terminal and described distant terminal set up D2D communication.

Preferably, before described distant terminal distribution D2D communication service resource, described method also comprises:

Described network side is determined when described distant terminal does not access described network side, and described distant terminal is initiated to paging, makes described distant terminal be linked into described network side.

Preferably, described definite described terminal sets up with described terminal wish the condition that meets D2D between the distant terminal of communicating by letter, and comprising:

Described terminal and described distant terminal all possess D2D ability, and described terminal and described distant terminal be signing D2D business all, and the distance between described terminal and the current present position of described distant terminal meets D2D distance.

Preferably, the distance between described terminal and the current present position of described distant terminal meets D2D apart from comprising:

Described terminal and described distant terminal are current to be linked into same access network element or to be linked into two adjacent access network elements.

Preferably, described network side is that described terminal and described distant terminal distribute D2D communication service resource, makes described terminal and described distant terminal set up D2D communication, comprising:

Described network side is that described terminal and described distant terminal divide the frequency spectrum resource that is used in D2D communication, and notifies described terminal and described distant terminal, makes described terminal and described distant terminal use described frequency spectrum resource to set up D2D communication.

Described network side is that described terminal and described distant terminal distribute respectively wireless data bearing resource, and set up respectively after wireless connections in described network side and described terminal and described distant terminal, the wireless connections that described terminal and described distant terminal are set up respectively interconnect.

Preferably, described network side is base station and/or mobile management net element.

Preferably, described method also comprises:

When described terminal and described distant terminal access identical base station, by described base station or mobile management net element, determine that described terminal and described terminal wish set up the condition that whether meets D2D between the distant terminal of communication;

When described terminal and described distant terminal access different base stations, by described mobile management net element, determine that described terminal and described terminal wish set up the condition that whether meets D2D between the distant terminal of communication.

Preferably, described method also comprises:

Base station determines that described terminal and described terminal wish set up while meeting the condition of D2D between the distant terminal of communication, is that described terminal and described distant terminal distribute D2D communication service resource;

Mobile management net element determines that described terminal and described terminal wish set up while meeting the condition of D2D between the distant terminal of communication, and informing base station is that described terminal and described distant terminal distribute D2D communication service resource.

A communication means for adjacent terminal end, described method comprises:

Terminal is to network side initiating communication service request, and after receiving the D2D communication service resource that network side distributes, sets up D2D and communicate by letter between the distant terminal that described terminal is communicated by letter with described terminal wish foundation.

Preferably, described D2D communication service resource is wireless data bearing resource;

Between terminal and described distant terminal, set up D2D communication, comprising:

Described terminal and described distant terminal are set up wireless connections with described network side respectively according to described wireless data bearing resource, and the wireless connections of described terminal and described distant terminal being set up respectively by described network side interconnect.

Preferably, described D2D communication service resource is the frequency spectrum resource for D2D communication;

Described terminal and described distant terminal are directly set up D2D communication connection according to described frequency spectrum resource.

A communicator for adjacent terminal end, described device comprises receiving element, determining unit, allocation units and sets up unit, wherein:

Receiving element, the communication services request of initiating for receiving terminal;

Determining unit, while meeting the condition of direct-connected communication D2D between the distant terminal for definite described terminal and described terminal wish foundation communication, triggers allocation units;

Allocation units, are used to described terminal and described distant terminal to distribute D2D communication service resource;

Set up unit, for making described terminal and described distant terminal set up D2D communication.

Preferably, described device also comprises: paging unit;

Described determining unit also for, determine when described distant terminal does not access described network side, trigger described paging unit described distant terminal initiated to paging, make described distant terminal be linked into described network side.

Preferably, described determining unit determines that described terminal and described distant terminal all possess D2D ability, described terminal and described distant terminal be signing D2D business all, and the distance between described terminal and the current present position of described distant terminal meet D2D apart from time, determine that described terminal and described terminal wish set up the condition that meets direct-connected communication D2D between the distant terminal of communication.

Preferably, described allocation units also for, for described terminal and described distant terminal divide the frequency spectrum resource that is used in D2D communication, and notify described terminal and described distant terminal;

Described set up unit also for, make described terminal and described distant terminal use described frequency spectrum resource to set up D2D communication.

Preferably, described allocation units also for, for described terminal and described distant terminal distribute respectively wireless data bearing resource;

Described set up unit also for, in described network side and described terminal and described distant terminal, set up respectively after wireless connections, the wireless connections that described terminal and described distant terminal are set up respectively interconnect.

A communicator for adjacent terminal end, described device comprises receiving element and set up unit, wherein:

Receiving element, the D2D communication service resource and the D2D communication indication that for receiving network side, distribute;

Set up unit, for setting up D2D communication between the distant terminal in terminal and described terminal wish foundation communication.

Described set up unit also for, make described terminal and described distant terminal set up wireless connections with described network side respectively according to described wireless data bearing resource, and the wireless connections that described terminal and described distant terminal are set up respectively interconnected.

Described set up unit also for, make described terminal and described distant terminal directly set up D2D communication connection according to described frequency spectrum resource.

A communication system for adjacent terminal end, is characterized in that, described system comprises the communicator of aforesaid two kinds of adjacent terminal end.

In the present invention, network side receives after the communication services request of terminal initiation, determine when described terminal and described terminal wish are set up the condition that meets direct-connected communication D2D between the distant terminal of communication, for described terminal and described distant terminal distribution D2D communication service resource, make described terminal and described distant terminal set up D2D communication.The present invention has realized the direct initiation session of terminal with direct-connected communication capacity, network side also can adopt D2D communication mode to carry out data traffic shunting flexibly, the impact of the partial data flow that has reduced D2D terminal to network side, makes network robustness and disposal ability obtain great enhancing.

Accompanying drawing explanation

Fig. 1 is the configuration diagram that UE is linked into 3GPP wireless network packet domain;

Fig. 2 is the flow chart that UE is linked into EPS network;

One of the scene that Fig. 3-1 is D2D communication schematic diagram;

One of the scene that Fig. 3-2 are D2D communication schematic diagram;

Fig. 4 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention one;

Fig. 5 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention two;

Fig. 6 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention three;

Fig. 7 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention four;

Fig. 8 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention five;

Fig. 9 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention six;

Figure 10 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention seven;

Figure 11 is the composition structural representation of communicator of the adjacent terminal end of the embodiment of the present invention;

Figure 12 is the composition structural representation of communicator of another adjacent terminal end of the embodiment of the present invention.

Embodiment

For making the object, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.

In D2D communication, operator wishes that communication has enough communication service control abilities to D2D, under the controlled prerequisite of network, realize D2D communication, this carries out D2D communication service inspection with regard to the service request that needs 3GPP network to initiate D2D terminal, and determines whether be the communication resource of terminal distribution D2D session according to the result of D2D communication service inspection.If network side decision-making, for D2D terminal provides D2D communication service, provides the communication resource of D2D session for this communication service, the communication resource that terminal room provides according to network side is set up D2D communication link and is carried out IP data communications.

The method that D2D terminal communication of the present invention is set up, when D2D terminal is during to network side initiating communication service request, 3GPP network can control effectively to the required D2D sessions carry resource distribution of D2D terminal communication and carrying foundation, assurance meets terminal and the opposite end of D2D communicating requirement and sets up D2D session, effectively to alleviate network side flow.Concrete scheme is as follows:

First, for the D2D terminal that is linked into 3GPP network, can effectively find that periphery closes on other D2D terminals in scope based on D2D discovery feature, and determine whether need and other D2D terminal initiation session.

If D2D terminal is issued session request to another one D2D terminal, first this session request can issue 3GPP network, and request network side allocate communications resource is also set up the required user plane bearer of service communication, can carry opposite end sign in this session request.Network side network element eNB and MME receive after this session request, in dialogue-based request, carry D2D session request mark or local policy, according to the D2D CAMEL-Subscription-Information of user contracting data and adjacent locations range check, whether meet the requirement of D2D session, if meet the requirement of D2D session, just allow this D2D terminal and opposite end to initiate D2D session.

If D2D session is initiated in MME decision-making, MME, by the result notice eNB of decision-making, indicates this terminal to adopt D2D conversational mode.If eNB decision-making voluntarily, eNB does not just need to receive the D2D session indication from MME.If terminal need to be adopted D2D conversational mode by decision-making, eNB need to be this terminal distribution D2D communication resource.

If terminal D 2D communication adopts the direct-connected communication mode of D2D, eNB is just the LTE frequency spectrum resource that this terminal and opposite end distribute D2D session to need, and notify this terminal and opposite end to carry out D2D session, this terminal and opposite end employing LTE wireless signal frequency range are set up voluntarily D2D data-direct connection link and are carried out IP communication.

If terminal D 2D communication adopts D2D local switching communication mode, eNB is just that wireless data bearing resource is distributed in this terminal and opposite end, and in eNB side, the wireless data carrying of this terminal and opposite end is carried out to loopback, make IP data directly from the radio bearer link of eNB, carry out loopback without core net user face link, both reduced IP core network data packet flow, also reduce IP packet-switching time delay, strengthened user's experience.

When D2D terminal is set up IP to the application of network initiating business request and opposite end and communicated by letter, if opposite end in idle pulley, is not in connected state, network side need to notify this opposite end to be linked into network.Network side gets opposite end sign from request message, according to corresponding IMSI or the P-TMSI paging opposite end of this opposite end sign.Opposite end is linked into network after receiving the paging request of network side, and network side may further be this opposite end and distributes the D2D communication resource, makes this opposite end and described source set up D2D communication carrier and carry out D2D and communicate by letter.

Below, by specific embodiment, further illustrate the essence of technical solution of the present invention.

Embodiment mono-

Fig. 4 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention one, main description, and D2D terminal is carried out D2D session establishment to network side MME request and the D2D opposite end of adjacent locations, and network side decision-making adopts direct-connected mode to realize the scene of D2D session.D2D terminal initiates a session request to network side radio access network eNB, carries D2D session request indication and opposite end sign in request message.Whether eNB issues MME by this session request, and MME contract and checks and adjacent locations inspection according to D2D session request indication, judges the whether signing D2D session service in this terminal and opposite end, with the close region scope of opposite end in D2D session permission.If MME carries out allowing this terminal and opposite end to adopt direct-connected mode to carry out D2D session after D2D conversational check, MME just sets up in message and carries D2D session indication information notice eNB at initial context, and direct-connected communication mode can be determined by MME or eNB.ENB is that LTE frequency spectrum resource is distributed in this terminal and opposite end, and notifies source and opposite end to carry out D2D session.The LTE wireless parameter that source and opposite end are distributed according to eNB is directly set up wireless data link and is carried out IP data communications.

As shown in Figure 4, the communication means of the adjacent terminal end of this example comprises the following steps:

Step 201, D2D source (the D2D terminal of initiating business request, lower same) sends service initiation request to eNB, D2D opposite end (the opposite end D2D terminal of request and close region, lower same) carry out D2D communication, in request message, comprise D2D session request indication and opposite end sign.

Step 202, eNB is routed to the accompanying MME of this terminal by this service initiation request.

Step 203, MME receives after the service initiation request of D2D source, and MME knows that according to the D2D session request indication in message this service request application adopts D2D conversational mode.Whether MME contracts and checks and adjacent locations inspection, judges the whether signing D2D session service in this terminal and opposite end, source and the close region scope of opposite end in D2D session permission.If MME carries out allowing this terminal and opposite end to carry out D2D session after D2D conversational check, MME just sets up and in message, carries D2D session indication information and opposite end sign notice eNB at initial context.

Step 204, MME sends initial context to eNB and sets up request, and request eNB is this terminal distribution radio bearer resources, carries D2D session indication and opposite end sign in request message.D2D session indication is used for notifying this terminal of eNB to set up D2D session with opposite end.

Step 205, eNB receives initial context and sets up after request, and the direct-connected communication of D2D is set up in decision-making, and session is designated as terminal distribution LTE frequency spectrum resource according to D2D.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

The direct-connected communication of D2D also can be carried out decision-making by MME, and notifies this eNB.

Step 206, eNB initiates to accept message to terminal transmission business, optional, and eNB and terminal are set up wireless data carrying.Business is initiated to accept to carry LTE wireless parameter in message, and D2D session allows indication and opposite end sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and opposite end initiation D2D is direct-connected to communicate by letter.

ENB and terminal can be set up wireless data carrying by prior art flow process, if also can strengthen as eNB notification terminal carries out the direct-connected communication of D2D, eNB and terminal can not set up wireless data carrying.

Step 207, eNB receives the wireless data carrying that terminal returns and sets up after response message, and notice MME initial context has been set up.

Step 208, if D2D source during to network side initiating business request, network side MME finds that opposite end is still in idle condition, and network side MME just adopts IMSI or the P-TMSI of terminal, and the eNB by place, opposite end initiates paging to opposite end.

It should be noted that, opposite end in service initiation request message sign can be that MSISDN, SIP URI etc. be the telephone number of terminal distribution, and it is the network identities such as the IMSI of terminal or P-TMSI sign that the opposite end that paging is used identifies.The mapping relations of this sign can be inquired about by HSS.

Step 209, D2D opposite end receives after paging request, to eNB, sends service initiation request, and eNB is routed to MME by this service initiation request.

Step 210, MME receives after the service initiation request of opposite end transmission, sends initial context set up request to eNB, and request eNB is this terminal distribution radio bearer resources, carries D2D session indication and source and identify in request message.D2D session indication is used for notifying this terminal of eNB to set up D2D session with source.

Step 211, eNB receives initial context and sets up after request, and according to D2D, session is designated as opposite end distribution LTE frequency spectrum resource.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

Step 212, eNB initiates to accept message to opposite end transmission business, optional, and wireless data carrying is set up in eNB and opposite end.Business is initiated to accept to carry LTE wireless parameter in message, and D2D session allows indication and source sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and source initiation D2D is direct-connected to communicate by letter.

ENB and terminal end can be set up wireless data carrying by prior art flow process, if also can strengthen as eNB notification terminal carries out the direct-connected communication of D2D, eNB and terminal can not set up wireless data carrying.

Step 213, eNB receives the wireless data carrying that terminal returns and sets up after response message, and notice MME initial context has been set up.

Step 214, described D2D source and opposite end allow indication according to LTE wireless parameter and D2D session, by LTE wireless signal, directly set up D2D communication link, carry out IP data communications.

Step 215, optional, if eNB has set up wireless data carrying according to prior art flow process and source and opposite end, Release radio resource request can be initiated to network side in source and opposite end, discharges the wireless data of setting up with eNB and carries, saving Internet resources.

Embodiment bis-

Fig. 5 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention two, main description, and D2D terminal is carried out D2D session establishment to network side eNB request and the D2D opposite end of adjacent locations, and network side decision-making adopts direct-connected mode to realize the scene of D2D session.D2D terminal is set up request to network side radio access network eNB initiation session, carries D2D session request indication and opposite end sign in session establishment request message.Whether eNB contract and checks and adjacent locations inspection according to D2D session request indication, judges the whether signing D2D session service in this terminal and opposite end, with the close region scope of opposite end in D2D session permission.If eNB carries out allowing this terminal and opposite end to adopt direct-connected mode to carry out D2D session after D2D conversational check, eNB is just that LTE frequency spectrum resource is distributed in this terminal and opposite end, and notifies source and opposite end to carry out D2D session.The LTE wireless parameter that source and opposite end are distributed according to eNB is directly set up wireless data link and is carried out IP data communications.

As shown in Figure 5, the communication means of the adjacent terminal end of this example comprises the following steps:

Step 301, D2D source sends RRC to eNB and sets up request message, and RRC sets up in request message and comprises D2D session request indication and opposite end sign, and request is carried out D2D with the D2D opposite end of close region and is communicated by letter.

Step 302, the RRC that eNB receives D2D source sets up after request message, according to the D2D session request indication in message, knows that this service request application adopts D2D conversational mode.ENB contract and checks and adjacent locations inspection according to the D2D CAMEL-Subscription-Information that obtains in access control flow process, judges the whether signing D2D session service in this terminal and opposite end, and source and opposite end are in the close region scope of D2D session permission.ENB carries out allowing this terminal and opposite end to carry out D2D session after D2D conversational check.

Step 303, the direct-connected communication of D2D is set up in eNB decision-making, and is terminal distribution LTE frequency spectrum resource.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

Step 304, eNB sends RRC to terminal and is successfully established message, and eNB and terminal are set up wireless data carrying.Optionally, eNB sends RRC to terminal and sets up refuse information, and eNB does not set up wireless data carrying with terminal, and carries cause value, and refusal is because terminal need to be carried out the direct-connected communication of D2D.In RRC response message, carry LTE wireless parameter, D2D session allows indication and opposite end sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and opposite end initiation D2D is direct-connected to communicate by letter.

Step 305, if when D2D source is initiated RRC foundation request to network side, network side eNB finds that opposite end is still in idle condition, network side eNB just adopts the IMSI of terminal or P-TMSI to initiate paging to opposite end.

It should be noted that, opposite end in RRC request message sign can be that MSISDN, SIP URI etc. be the telephone number of terminal distribution, and it is the network identities such as the IMSI of terminal or P-TMSI sign that the opposite end that paging is used identifies.The mapping relations of this sign can be inquired about to HSS by MME by eNB.

Step 306, D2D opposite end receives after paging request, sends RRC set up request to eNB, and request eNB sets up radio bearer.

Step 307, the RRC that eNB receives D2D opposite end sets up after request message, for distributing LTE frequency spectrum resource in D2D opposite end.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

Step 308, eNB sends RRC to terminal and is successfully established message, and eNB and terminal are set up wireless data carrying.Optionally, eNB sends RRC to terminal and sets up refuse information, and eNB does not set up wireless data carrying with terminal, and carries cause value, and refusal is because terminal need to be carried out the direct-connected communication of D2D.In RRC response message, carry LTE wireless parameter, D2D session allows indication and source sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and source initiation D2D is direct-connected to communicate by letter.

Step 309, described D2D source and opposite end allow indication according to LTE wireless parameter and D2D session, by LTE wireless signal frequency range, directly set up D2D communication link, carry out IP data communications.

Step 310, optional, if wireless data carrying has been set up in eNB and source and opposite end, Release radio resource request can be initiated to network side in source and opposite end, discharges the wireless data carrying of setting up with eNB, saves Internet resources.

Embodiment tri-

Fig. 6 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention three, main description, and D2D terminal is carried out ordinary conversation foundation to network side MME request and the D2D opposite end of adjacent locations, and network side decision-making adopts direct-connected mode to realize the scene of D2D session.D2D terminal is initiated ordinary conversation request to network side radio access network eNB, carries opposite end sign in request message.ENB issues MME by this ordinary conversation request, MME contracts and checks and adjacent locations inspection this terminal and opposite end according to local policy, judge whether signing D2D session service of this terminal and opposite end, the close region scope whether allowing in D2D session with opposite end.If MME carries out allowing this terminal and opposite end employing to carry out D2D session after D2D conversational check, MME just sets up in message and carries D2D session indication information notice eNB at initial context, and direct-connected communication mode can be determined by MME or eNB.ENB is that LTE frequency spectrum resource is distributed in this terminal and opposite end, and notifies source and opposite end to carry out D2D session.The LTE wireless parameter that source and opposite end are distributed according to eNB is directly set up wireless data link and is carried out IP data communications.

As shown in Figure 6, the communication means of the adjacent terminal end of this example comprises the following steps:

Step 401, D2D source sends service initiation request to eNB, asks to carry out D2D with the D2D opposite end of close region and communicates by letter, and comprises opposite end sign in request message.

Step 402, eNB is routed to the accompanying MME of this terminal by this service initiation request.

Step 403, MME receives after the service initiation request of D2D source, and based on local policy, MME first checks whether meet D2D communicating requirement to general service request.Whether MME contracts and checks and adjacent locations inspection terminal, judges the whether signing D2D session service in this terminal and opposite end, source and the close region scope of opposite end in D2D session permission.If MME carries out allowing this terminal and opposite end to carry out D2D session after D2D conversational check, MME just sets up and in message, carries D2D session indication information and opposite end sign notice eNB at initial context.

Step 404, MME sends initial context to eNB and sets up request, and request eNB is this terminal distribution radio bearer resources, carries D2D session indication and opposite end sign in request message.D2D session indication is used for notifying this terminal of eNB to set up D2D session with opposite end.

Step 405, eNB receives initial context and sets up after request, and the direct-connected communication of D2D is set up in decision-making, and session is designated as terminal distribution LTE frequency spectrum resource according to D2D.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

Step 406, eNB initiates to accept message to terminal transmission business, optional, and eNB and terminal are set up wireless data carrying.Business is initiated to accept to carry LTE wireless parameter in message, and D2D session allows indication and opposite end sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and opposite end initiation D2D is direct-connected to communicate by letter.

Step 407, eNB receives the wireless data carrying that terminal returns and sets up after response message, and notice MME initial context has been set up.

Step 408, if D2D source during to network side initiating business request, network side MME finds that opposite end is still in idle condition, and network side MME just adopts IMSI or the P-TMSI of terminal, and the eNB by place, opposite end initiates paging to opposite end.

Step 409, D2D opposite end receives after paging request, to eNB, sends service initiation request, and eNB is routed to MME by this service initiation request.

Step 410, MME receives after the service initiation request of opposite end transmission, sends initial context set up request to eNB, and request eNB is this terminal distribution radio bearer resources, carries D2D session indication and source and identify in request message.D2D session indication is used for notifying this terminal of eNB to set up D2D session with source.

Step 411, eNB receives initial context and sets up after request, and according to D2D, session is designated as opposite end distribution LTE frequency spectrum resource.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

Step 412, eNB initiates to accept message to opposite end transmission business, optional, and wireless data carrying is set up in eNB and opposite end.Business is initiated to accept to carry LTE wireless parameter in message, and D2D session allows indication and source sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and source initiation D2D is direct-connected to communicate by letter.

Step 413, eNB receives the wireless data carrying that terminal returns and sets up after response message, and notice MME initial context has been set up.

Step 414, described D2D source and opposite end allow indication according to LTE wireless parameter and D2D session, by LTE wireless signal, directly set up D2D communication link, carry out IP data communications.

Step 415, optional, if eNB has set up wireless data carrying according to prior art flow process and source and opposite end, Release radio resource request can be initiated to network side in source and opposite end, discharges the wireless data of setting up with eNB and carries, saving Internet resources.

Embodiment tetra-

Fig. 7 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention four, main description, and D2D terminal is set up to the D2D opposite end request ordinary conversation of network request and adjacent locations, and network side decision-making adopts direct-connected mode to realize the scene of D2D session.D2D terminal is initiated ordinary conversation to network side radio access network eNB and is set up request, carries opposite end sign in request message.ENB contracts and checks and adjacent locations inspection this terminal and opposite end, judges the whether signing D2D session service in this terminal and opposite end, the close region scope whether allowing in D2D session with opposite end.If eNB carries out allowing this terminal and opposite end to adopt direct-connected mode to carry out D2D session after D2D conversational check, eNB is just that LTE frequency spectrum resource is distributed in this terminal and opposite end, and notifies source and opposite end to carry out D2D session.The LTE wireless parameter that source and opposite end are distributed according to eNB is directly set up wireless data link and is carried out IP data communications.

As shown in Figure 7, the communication means of the adjacent terminal end of this example comprises the following steps:

Step 501, D2D source sends RRC to eNB and sets up request message, and RRC sets up in request message and comprises opposite end sign, and request is set up radio bearer with eNB.

Step 502, the RRC that eNB receives D2D source sets up after request message, eNB contracts and checks and adjacent locations inspection according to the D2D CAMEL-Subscription-Information obtaining in access control flow process, judge whether signing D2D session service of this terminal and opposite end, whether source and the close region scope of opposite end in D2D session permission.ENB carries out allowing this terminal and opposite end to carry out D2D session after D2D conversational check.

Step 503, the direct-connected communication of D2D is set up in eNB decision-making, and is terminal distribution LTE frequency spectrum resource.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

Step 504, eNB sends RRC to terminal and is successfully established message, and eNB and terminal are set up wireless data carrying.Optionally, eNB sends RRC to terminal and sets up refuse information, and eNB does not set up wireless data carrying with terminal, and carries cause value, and refusal is because terminal need to be carried out the direct-connected communication of D2D.In RRC response message, carry LTE wireless parameter, D2D session allows indication and opposite end sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and opposite end initiation D2D is direct-connected to communicate by letter.

Step 505, if when D2D source is initiated RRC foundation request to network side, network side eNB finds that opposite end is still in idle condition, network side eNB just adopts the IMSI of terminal or P-TMSI to initiate paging to opposite end.

Step 506, D2D opposite end receives after paging request, sends RRC set up request to eNB, and request eNB sets up radio bearer.

Step 507, the RRC that eNB receives D2D opposite end sets up after request message, for distributing LTE frequency spectrum resource in D2D opposite end.LTE frequency spectrum resource can comprise LTE radio band parameter, power parameter, the information such as bandwidth parameter.

Step 508, eNB sends RRC to terminal and is successfully established message, and eNB and terminal are set up wireless data carrying.Optionally, eNB sends RRC to terminal and sets up refuse information, and eNB does not set up wireless data carrying with terminal, and carries cause value, and refusal is because terminal need to be carried out the direct-connected communication of D2D.In RRC response message, carry LTE wireless parameter, D2D session allows indication and source sign.D2D session allows LTE wireless parameter that indication shows that network allows this terminal to adopt to distribute and source initiation D2D is direct-connected to communicate by letter.

Step 509, described D2D source and opposite end allow indication according to LTE wireless parameter and D2D session, by LTE wireless signal frequency range, directly set up D2D communication link, carry out IP data communications.

Step 510, optional, if wireless data carrying has been set up in eNB and source and opposite end, Release radio resource request can be initiated to network side in source and opposite end, discharges the wireless data carrying of setting up with eNB, saves Internet resources.

Embodiment five

Fig. 8 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention five, what mainly describe is, D2D terminal is set up to network side eNB request and the D2D opposite end request ordinary conversation of adjacent locations, and network side decision-making adopts local exchange mode to realize the scene of D2D session.D2D terminal is initiated ordinary conversation to network side radio access network eNB and is set up request, carries opposite end sign in request message.ENB to the inspection of contracting of this terminal and opposite end, judges the whether signing D2D session service in this terminal and opposite end according to local policy.If eNB allows this terminal and opposite end to adopt local exchange mode to carry out D2D session according to local policy and D2D conversational check result, eNB is just that wireless data carrying is set up respectively in this terminal and opposite end, by the wireless data carrying interconnection of source and terminal.Source and opposite end adopt the wireless data link of setting up with eNB to carry out IP data communications, and eNB carries out IP data loopback in this locality, avoid core net to cause the impact of data traffic.

As shown in Figure 8, the communication means of the adjacent terminal end of this example comprises the following steps:

Step 601, D2D source sends RRC to eNB and sets up request message, also comprises the service initiation request of NAS signaling in RRC request, comprises opposite end sign in request message, and this RRC request is set up radio bearer for request with eNB.

Step 602, the RRC that eNB receives D2D source sets up after request message, eNB is according to local policy, the D2D CAMEL-Subscription-Information that use is obtained in the access control flow process inspection of contracting, judge the whether signing D2D session service in this terminal and opposite end, and it according to local policy decision-making, whether allowing source, and opposite end employing local exchange mode carries out the foundation of D2D sessions carry and D2D communicates by letter.

Step 603, eNB decision-making allows to adopt local exchange mode to set up D2D sessions carry, is just terminal distribution radio bearer resources, returns to RRC be successfully established message to terminal.

Step 604, sets up wireless data carrying between eNB and terminal, the TEID (Tunnel Enterance ID, Tunnel Identifier) that this wireless data carrying can distribute with eNB, and the IP address that core net is distributed, one of terminal iidentification is any or association is carried out in combination.

Step 605, if when D2D source is initiated RRC foundation request to network side, network side eNB finds that opposite end is still in idle condition, network side eNB just adopts the IMSI of terminal or P-TMSI to initiate paging to opposite end.

Step 606, D2D opposite end receives after paging request, sends RRC set up request to eNB, and request eNB sets up radio bearer.

Step 607, eNB decision-making allows to adopt local exchange mode to set up D2D sessions carry, is just terminal distribution radio bearer resources, returns to RRC be successfully established message to terminal.

Step 608, sets up wireless data carrying between eNB and terminal, the Tunnel Identifier (TEID, Tunnel Enterance ID) that this wireless data carrying can distribute with eNB, and the IP address that core net is distributed, one of terminal iidentification is any or association is carried out in combination.

Step 609, eNB is that D2D source and opposite end are set up respectively after wireless data carrying, because this D2D Communication Decision adopts local exchange mode, the TEID entrance of the wireless data link that TEID outlet and the opposite end of the wireless data link that described eNB just sets up source set up interconnects, the TEID outlet of the wireless data link that the TEID entrance of the wireless data link that just source is set up and opposite end are set up interconnects, the IP data that are terminal room are directly carried out IP data loopback at eNB, realize at eNB and adopt local exchange mode to carry out IP data communications.

Embodiment six

Fig. 9 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention six, what mainly describe is, D2D terminal is set up to network side MME request and the D2D opposite end request ordinary conversation of adjacent locations, and the terminal communication of network side decision-making on same eNB adopts local exchange mode to realize the scene of D2D session.D2D terminal is initiated ordinary conversation to network side radio access network eNB and is set up request, carries opposite end sign in request message, and eNB asks route to MME this.MME contracts and checks and the inspection of adjacent locations this terminal and opposite end according to local policy, judges the whether signing D2D session service in this terminal and opposite end, whether at same eNB.If MME allows this terminal and opposite end to carry out D2D session according to local policy and D2D conversational check result, MME just sets up in request and notifies eNB at initial context, if eNB or MME decision-making adopt local exchange mode to carry out D2D communication, eNB is just that wireless data carrying is set up respectively in this terminal and opposite end, and according to local exchange decision-making, the wireless data carrying of source and terminal is interconnected.Source and opposite end adopt the wireless data link of setting up with eNB to carry out IP data communications.ENB carries out IP data loopback in this locality, avoid core net to cause the impact of data traffic.

As shown in Figure 9, the communication means of the adjacent terminal end of this example comprises the following steps:

Step 701～step 702, D2D source sends service initiation request to eNB, comprises opposite end sign, the MME that eNB adheres to this service initiation request route to this terminal in request message.

Step 703, MME receives after the service initiation request message of D2D source, MME is according to local policy, contracted and checked and close region inspection in this terminal and opposite end, judge the whether signing D2D session service in this terminal and opposite end, whether be positioned at same eNB or adjacent eNB, if MME carries out allowing this terminal and opposite end to carry out D2D session after D2D conversational check, MME just sets up and in message, carries D2D session indication information and opposite end sign notice eNB at initial context.

Step 704, MME sends initial context to eNB and sets up request, and request eNB is this terminal distribution radio bearer resources, carries D2D session indication and opposite end end sign in request message.D2D session indication is used for notifying this terminal of eNB to set up D2D session with opposite end.

Step 705, eNB, according to D2D session indication, allows to adopt local exchange mode to set up D2D sessions carry according to local policy decision-making, is just terminal distribution radio bearer resources, returns to business initiate to accept message to terminal.

Local exchange mode also can be carried out decision-making by MME, if MME carries out decision-making, need to set up in request and bring eNB by local exchange mode strategy at initial context, by eNB, carries out this strategy.

Step 706, sets up wireless data carrying between eNB and terminal, the TEID (Tunnel Enterance ID, Tunnel Identifier) that this wireless data carrying can distribute with eNB, and the IP address that core net is distributed, one of terminal iidentification is any or association is carried out in combination.

Step 707, eNB receives the wireless data carrying that terminal returns and sets up after response message, and notice MME initial context has been set up.

Step 708, if D2D source during to network side initiating business request, network side MME finds that opposite end is still in idle condition, and network side MME just adopts IMSI or the P-TMSI of terminal, and the eNB by place, opposite end initiates paging to opposite end.

Step 709, D2D opposite end receives after paging request, to eNB, sends service initiation request, and eNB is routed to MME by this service initiation request.

Step 710, MME receives after the service initiation request of opposite end transmission, sends initial context set up request to eNB, and request eNB is this terminal distribution radio bearer resources, carries D2D session indication and source and identify in request message.D2D session indication is used for notifying this terminal of eNB to set up D2D session with source.

Step 711, eNB, according to D2D session indication, allows to adopt local exchange mode to set up D2D sessions carry according to local policy decision-making, just for opposite end, distributes radio bearer resources, and the business of returning to opposite end initiates to accept message.

Step 712, between eNB and opposite end, set up wireless data carrying, the opposite end TEID (Tunnel Enterance ID, Tunnel Identifier) that this wireless data carrying can distribute with eNB, the peer IP address that core net is distributed, one of opposite end sign is any or association is carried out in combination.

Step 713, eNB receives the wireless data carrying of returning opposite end and sets up after response message, and notice MME initial context has been set up.

Step 714, eNB is that D2D source and opposite end are set up respectively after wireless data carrying, because this D2D Communication Decision adopts local exchange mode, the TEID entrance of the wireless data link that TEID outlet and the opposite end of the wireless data link that described eNB just sets up source set up interconnects, the TEID outlet of the wireless data link that the TEID entrance of the wireless data link that just source is set up and opposite end are set up interconnects, the IP data that are terminal room are directly carried out IP data loopback at eNB, realize at eNB and adopt local exchange mode to carry out IP data communications.

Embodiment seven

Figure 10 is the communication means flow chart of the adjacent terminal end of the embodiment of the present invention seven, what mainly describe is, D2D terminal is set up to network side MME request and the D2D opposite end request ordinary conversation of adjacent locations, and the terminal communication of network side decision-making in adjacent eNB adopts local exchange mode to realize the scene of D2D session.D2D terminal is initiated ordinary conversation to network side radio access network the one eNB and is set up request, carries opposite end sign in request message, and an eNB asks route to MME this.MME contracts and checks and the inspection of adjacent locations this terminal and opposite end according to local policy, judges the whether signing D2D session service in this terminal and opposite end, whether in same eNB or adjacent eNB.If MME allows this terminal and opposite end to carry out D2D session according to local policy and D2D conversational check result, MME just sets up in request and notifies an eNB at source place and the 2nd eNB at place, opposite end at initial context, if eNB or MME decision-making adopt local exchange mode to carry out D2D communication, eNB is just that wireless data carrying is set up respectively in this terminal and opposite end, and according to local exchange decision-making, the wireless data carrying of source and terminal is interconnected.Source and opposite end adopt the wireless data link of setting up with eNB to carry out IP data communications.The one eNB and the 2nd eNB carry out IP data loopback in wireless access side, avoid core net to cause the impact of data traffic.

As shown in figure 10, the communication means of the adjacent terminal end of this example comprises the following steps:

Step 800, an adjacent eNB and the 2nd eNB adopt special-purpose user's face tunnel to interconnect at X2 interface, for transmitting two IP data between eNB.

Step 801～step 802, D2D source sends service initiation request to an eNB, comprises opposite end sign, the MME that an eNB adheres to this service initiation request route to this terminal in request message.

Step 803, MME receives after the service initiation request message of D2D source, MME is according to local policy, contracted and checked and close region inspection in this terminal and opposite end, judge the whether signing D2D session service in this terminal and opposite end, whether be positioned at same eNB or adjacent eNB, if MME carries out allowing this terminal and opposite end to carry out D2D session after D2D conversational check, MME just sets up and in message, carries D2D session indication information and opposite end sign is notified an eNB at initial context.

Step 804, MME sends initial context to an eNB and sets up request, asks an eNB for this terminal distribution radio bearer resources, carries D2D session indication and opposite end end sign in request message.D2D session indication is used for notifying this terminal of eNB to set up D2D session with opposite end.

Step 805, an eNB, according to D2D session indication, allows to adopt local exchange mode to set up D2D sessions carry according to local policy decision-making, is just terminal distribution radio bearer resources, returns to business initiate to accept message to terminal.

Step 806, between the one eNB and terminal, set up wireless data carrying, the source TEID (Tunnel Enterance ID, Tunnel Identifier) that this wireless data carrying can distribute with an eNB, the source IP address that core net is distributed, one of source sign is any or association is carried out in combination.

Step 807, an eNB receives the wireless data carrying that terminal returns and sets up after response message, and notice MME initial context has been set up.

Step 808, if D2D source during to network side initiating business request, network side MME finds that opposite end is still in idle condition, and network side MME just adopts IMSI or the P-TMSI of terminal, and the 2nd eNB by place, opposite end initiates paging to opposite end.

Step 809, D2D opposite end receives after paging request, to the 2nd eNB, sends service initiation request, and the 2nd eNB is routed to MME by this service initiation request.

Step 810, MME receives after the service initiation request of opposite end transmission, sends initial context set up request to the 2nd eNB, asks the 2nd eNB for this terminal distribution radio bearer resources, carries D2D session indication and source and identify in request message.D2D session indication is used for notifying the 2nd this terminal of eNB to set up D2D session with source.

Step 811, the 2nd eNB, according to D2D session indication, allows to adopt local exchange mode to set up D2D sessions carry according to local policy decision-making, just for opposite end, distributes radio bearer resources, and the business of returning to opposite end initiates to accept message.

Step 812, between the 2nd eNB and opposite end, set up wireless data carrying, the opposite end TEID (Tunnel Enterance ID, Tunnel Identifier) that this wireless data carrying can distribute with the 2nd eNB, the peer IP address that core net is distributed, one of opposite end sign is any or association is carried out in combination.

Step 813, the 2nd eNB receives the wireless data carrying of returning opposite end and sets up after response message, and notice MME initial context has been set up.

Step 814, the 2nd eNB is that D2D source and opposite end are set up respectively after wireless data carrying, because this D2D Communication Decision adopts local exchange mode, TEID outlet and the TEID entrance of the wireless data link of X2 interface special use of the wireless data link that the one eNB just sets up source interconnect, and the TEID entrance of wireless data link that an eNB just sets up source and the TEID of the wireless data link of X2 interface special use outlet mouthful interconnect.Simultaneously, TEID outlet and the TEID entrance of the wireless data link of X2 interface special use of the wireless data link that the 2nd eNB just sets up opposite end interconnect, and the TEID entrance of wireless data link that the 2nd eNB just sets up opposite end and the TEID of the wireless data link of X2 interface special use outlet mouthful interconnect.Like this, the IP packet of source and opposite end can be through the wireless data carrying of source and eNB foundation, the private subscribers face carrying of the one eNB and the 2nd eNB, the wireless data carrying that opposite end and the 2nd eNB set up, realize data loopback, realize and between eNB, adopt local exchange mode to carry out IP data communications.

Figure 11 is the composition structural representation of communicator of the adjacent terminal end of the embodiment of the present invention, and as shown in figure 11, the communicator of the adjacent terminal end of this example comprises receiving element 1101, determining unit 1102, allocation units 1103 and set up unit 1104, wherein:

Receiving element 1101, the communication services request of initiating for receiving terminal;

Determining unit 1102, while meeting the condition of direct-connected communication D2D between the distant terminal for definite described terminal and described terminal wish foundation communication, triggers allocation units 1103;

Allocation units 1103, are used to described terminal and described distant terminal to distribute D2D communication service resource;

Set up unit 1104, for making described terminal and described distant terminal set up D2D communication.

On the basis of the communicator of the adjacent terminal end of the embodiment of the present invention shown in Figure 11, the communicator of the adjacent terminal end of this example also comprises: paging unit (Figure 11 is not shown);

Described determining unit 1102 also for, determine when described distant terminal does not access described network side, trigger described paging unit described distant terminal initiated to paging, make described distant terminal be linked into described network side.

Those skilled in the art, paging unit not realizes the necessary processing unit of communicator of the adjacent terminal end of this example, and it is only the processing unit of communicator of optimizing the adjacent terminal end of this example.

Described determining unit 1102 determines that described terminal and described distant terminal all possess D2D ability, described terminal and described distant terminal be signing D2D business all, and the distance between described terminal and the current present position of described distant terminal meet D2D apart from time, determine when described terminal and described terminal wish are set up the condition that meets direct-connected communication D2D between the distant terminal of communication.

Described allocation units 1103 also for, for described terminal and described distant terminal divide the frequency spectrum resource that is used in D2D communication, and notify described terminal and described distant terminal;

Described set up unit 1104 also for, make described terminal and described distant terminal use described frequency spectrum resource to set up D2D communication.

Described allocation units 1103 also for, for described terminal and described distant terminal distribute respectively wireless data bearing resource;

Described set up unit 1104 also for, in described network side and described terminal and described distant terminal, set up respectively after wireless connections, the wireless connections that described terminal and described distant terminal are set up respectively interconnect.

It should be noted that, above-mentioned processing unit is arranged in base station and/or mobile management net element, for realizing the D2D terminal direct communication of network side.Concrete, for example: when described terminal and described distant terminal access identical base station, described determining unit 1102 is arranged in described base station or mobile management net element, for definite described terminal and described terminal wish, sets up the condition that whether meets D2D between the distant terminal of communicating by letter; When described terminal and described distant terminal access different base stations, described determining unit 1102 is arranged in described mobile management net element, for definite described terminal and described terminal wish, sets up the condition that whether meets D2D between the distant terminal of communicating by letter.Described allocation units 1103 are arranged in base station all the time, for being directly described terminal and described distant terminal distribution D2D communication service resource (now determining unit is arranged at base station); Or, be arranged at determining unit in mobile management net element 1102 and determine that described terminals and described terminal wish set up while meeting the condition of D2D between the distant terminal of communication, the described allocation units 1103 in informing base station be described terminal and described distant terminal distribution D2D communication service resource.

The practical function that it will be appreciated by those skilled in the art that the each processing unit in the communicator of the adjacent terminal end shown in Figure 11 can be with reference to the associated description of the communication means of aforementioned adjacent terminal end and is understood.The function that it will be appreciated by those skilled in the art that each processing unit in the communicator of the adjacent terminal end shown in Figure 11 can realize by the program running on processor, also can realize by concrete logical circuit.

Figure 12 is the composition structural representation of communicator of the adjacent terminal end of another embodiment of the present invention, and as shown in figure 12, the communicator of the adjacent terminal end of this example comprises receiving element 1201 and set up unit 1202, wherein:

Receiving element 1201, the D2D communication service resource and the D2D communication indication that for receiving network side, distribute;

Set up unit 1202, for setting up D2D communication between the distant terminal in terminal and described terminal wish foundation communication.

Wherein, described D2D communication service resource is wireless data bearing resource;

Described set up unit 1202 also for, make described terminal and described distant terminal set up wireless connections with described network side respectively according to described wireless data bearing resource, and the wireless connections that described terminal and described distant terminal are set up respectively interconnected.

Or described D2D communication service resource is the frequency spectrum resource for D2D communication;

Described set up unit 1202 also for, make described terminal and described distant terminal directly set up D2D communication connection according to described frequency spectrum resource.

The communicator of the adjacent terminal end of this example is applicable in D2D terminal.

The practical function that it will be appreciated by those skilled in the art that the each processing unit in the communicator of the adjacent terminal end shown in Figure 12 can be with reference to the associated description of the communication means of aforementioned adjacent terminal end and is understood.The function that it will be appreciated by those skilled in the art that each processing unit in the communicator of the adjacent terminal end shown in Figure 12 can realize by the program running on processor, also can realize by concrete logical circuit.

The present invention has also recorded a kind of communication system of adjacent terminal end, and it comprises the communicator (network side) of the adjacent terminal end described in aforementioned Figure 11 and the communicator (D2D end side) of the adjacent terminal end shown in Figure 12.Because existing system configuration is identical with the communication system architecture of existing support D2D, the present invention has carried out corresponding improvement to part network element wherein or the function of D2D terminal, therefore can be in conjunction with the communication system architecture of existing support D2D, and with reference to the communication of aforesaid adjacent terminal end and the associated description of device, understand the communication system of adjacent terminal end of the present invention, repeat no more the details of each network element and D2D terminal here.

The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.

Claims

1. a communication means for adjacent terminal end, is characterized in that, described method comprises:

Network side receives after the communication services request of terminal initiation, determine when described terminal and described terminal wish are set up the condition that meets direct-connected communication D2D between the distant terminal of communication, for described terminal and described distant terminal distribution D2D communication service resource, make described terminal and described distant terminal set up D2D communication.

2. method according to claim 1, is characterized in that, before described distant terminal distribution D2D communication service resource, described method also comprises:

3. method according to claim 1, is characterized in that, described definite described terminal sets up with described terminal wish the condition that meets D2D between the distant terminal of communicating by letter, and comprising:

4. method according to claim 3, is characterized in that, the distance between described terminal and the current present position of described distant terminal meets D2D distance and comprises:

5. method according to claim 1, is characterized in that, described network side is that described terminal and described distant terminal distribute D2D communication service resource, makes described terminal and described distant terminal set up D2D communication, comprising:

6. method according to claim 1, is characterized in that, described network side is that described terminal and described distant terminal distribute D2D communication service resource, makes described terminal and described distant terminal set up D2D communication, comprising:

7. according to the method described in claim 1 to 6 any one, it is characterized in that, described network side is base station and/or mobile management net element.

8. method according to claim 7, is characterized in that, described method also comprises:

9. method according to claim 8, is characterized in that, described method also comprises:

10. a communication means for adjacent terminal end, is characterized in that, described method comprises:

11. methods according to claim 10, is characterized in that, described D2D communication service resource is wireless data bearing resource;

12. methods according to claim 10, is characterized in that, described D2D communication service resource is the frequency spectrum resource for D2D communication;

13. according to claim 10 to the method described in 12 any one, it is characterized in that, described network side is base station and/or mobile management net element.

The communicator of 14. 1 kinds of adjacent terminal end, is characterized in that, described device comprises receiving element, determining unit, allocation units and set up unit, wherein:

15. devices according to claim 14, is characterized in that, described device also comprises: paging unit;

16. devices according to claim 14, it is characterized in that, described determining unit determines that described terminal and described distant terminal all possess D2D ability, described terminal and described distant terminal be signing D2D business all, and the distance between described terminal and the current present position of described distant terminal meet D2D apart from time, determine that described terminal and described terminal wish set up the condition that meets direct-connected communication D2D between the distant terminal of communication.

17. devices according to claim 14, is characterized in that, described allocation units also for, for described terminal and described distant terminal divide the frequency spectrum resource that is used in D2D communication, and notify described terminal and described distant terminal;

18. devices according to claim 14, is characterized in that, described allocation units also for, for described terminal and described distant terminal distribute respectively wireless data bearing resource;

The communicator of 19. 1 kinds of adjacent terminal end, is characterized in that, described device comprises receiving element and set up unit, wherein:

20. devices according to claim 19, is characterized in that, described D2D communication service resource is wireless data bearing resource;

21. devices according to claim 19, is characterized in that, described D2D communication service resource is the frequency spectrum resource for D2D communication;

The communication system of 22. 1 kinds of adjacent terminal end, is characterized in that, described system comprises the communicator of the adjacent terminal end described in claim 14 to 18 any one, and the communicator of the adjacent terminal end described in claim 19 to 21 any one.