CN103974429A

CN103974429A - Method and device for establishing paths of adjacent communication between terminals

Info

Publication number: CN103974429A
Application number: CN201310046259.5A
Authority: CN
Inventors: 康艳超
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-02-05
Filing date: 2013-02-05
Publication date: 2014-08-06
Anticipated expiration: 2033-02-05
Also published as: CN103974429B

Abstract

The invention discloses a method and device for establishing paths of the adjacent communication between terminals, and aims to solve the problem for establishing paths of the adjacent communication between adjacent user devices. According to an embodiment, the method includes after a first adjacent communication establishing request is received by a first base station, distributing a downlink address for the adjacent communication of a first terminal; allowing the first base station to acquire the same downlink address, distributed by a second base station, for the adjacent communication for a second terminal and adopt the acquired downlink address as the uplink address of the adjacent communication of the first terminal to establish corresponding paths corresponding to the adjacent communication of the first terminal. Thus, the adjacent communication of data transmission between the first terminal and the second terminal through the base station is implemented.

Description

A kind of path establishment method of adjacent communication of terminal room and equipment

Technical field

The present invention relates to communication technical field, particularly a kind of path establishment method of adjacent communication of terminal room and equipment.

Background technology

Third generation partner program (3rd Generation Partnership Project at present, two subscriber equipment (User Equipment of definition 3GPP), UE) communication process between, shown in Figure 1, the process that UE1 sends data to UE2 comprises:

Data are sent to the eNB1 into its service by UE1; ENB1 is receiving after data, and these data are delivered to gateway (Serving Gateway, SGW)/packet data gateway (Packet Data NetworkGateway, PDN GW); SGW/PGW, receiving after these data, according to the Route Distinguisher of UE1, routes the data to the SGW/PGW into UE1 service; Because UE1 in figure is identical with the SGW/PGW of UE2, for these data are delivered to the eNB2 into UE2 service by the SGW/PGW of UE2 service; These data are passed to UE2 by last eNB2, sends the process of data to complete UE1 to UE2; If the SGW/PGW of UE1 service is not identical with the SGW/PGW serving for UE2, the communication process between UE1 and UE2 also comprises that the service PGW of UE1 routes data to the process of the service PGW of UE2.

Can find out from said process, even if the position between two subscriber equipmenies of intercommunication is very near mutually, while transmitting data, also need by for eNB and the core net of service separately could arrive opposite end, make communication delay very large, but also can take more Internet resources.Therefore, 3GPP is studying about the communication technology between nearby device (being adjacent communication), that is: when the distance between two UE of needs communication is very near, realize direct transmission data between these two UE, its data transfer path is referring to shown in Fig. 2 A, between UE1 and UE2, can directly transmit data, and not need through any mobile network appliance; Or only realize the high-speed traffic between these two UE by the transmission of base station (as eNB), its data transfer path is referring to shown in Fig. 2 B, UE1 and UE2 are connected to same eNB, only realize and forward by this eNB the data that need transmission, forward and do not need to route data to core net.Above-mentioned two kinds of transmission meanss have greatly reduced the time delay of transfer of data, and can save Internet resources, especially save the Internet resources of core net.

At present, 3GPP service and the SA1(Service and System of system orientation working group, SA) problem of implementation of the adjacent communication between UE is being discussed, in order to realize the adjacent communication between UE, need to solve following two large problems: the proximity relations discovery procedure between the one, UE, the 2nd, determine between the UE of proximity relations how to realize adjacent communication.

In sum, at present 3GPP has only defined the demand of setting up for adjacent communication, sets up for the path that meets adjacent communication between the subscriber equipment of proximity relations, and concrete solution is not provided.

Summary of the invention

The embodiment of the present invention provides a kind of path establishment method and equipment of adjacent communication of terminal room, set up for the path for meeting adjacent communication between the subscriber equipment of proximity relations that solves that prior art exists, the problem of concrete solution is not provided.

The embodiment of the present invention provides a kind of path establishment method of adjacent communication of terminal room, comprising:

The first base station, according to the first adjacent communication request to create receiving, is the adjacent communication allocation of downlink address of first terminal;

Described the first base station obtains the descending address that the second base station is the same adjacent communication of the second terminal distribution, and the upper row address of described adjacent communication using the descending address getting as described first terminal;

Wherein, described the first base station is the current resident base station of described first terminal; Described first terminal and described the second terminal are two different terminals need to setting up in described adjacent communication; Described the second base station is described the second current resident base station of terminal.

The embodiment of the present invention provides a kind of base station, comprising:

The first distribution module according to the first adjacent communication request to create receiving, is the adjacent communication allocation of downlink address of first terminal for the first base station;

The first acquisition module, for obtaining the descending address that the second base station is the same adjacent communication of the second terminal distribution, and using the descending address getting as upper row address corresponding to described first terminal;

Wherein, described first terminal and described the second terminal are two different terminals in described adjacent communication; Described the second base station is described the second current resident base station of terminal.

The embodiment of the present invention provides a kind of MME, comprising:

The first request to create sending module, for sending the first adjacent communication request to create to current the first resident base station of described first terminal, it is that described first terminal distributes adjacent communication and descending address that described the first adjacent communication request to create is used for asking described the first base station;

The first announcement information sending module, for send the first adjacent communication notice to described first terminal, described the first adjacent communication notice is for notifying the adjacent communication path that described first terminal is corresponding to set up.

The embodiment of the present invention the first base station, according to the first adjacent communication request to create receiving, is the adjacent communication allocation of downlink address of first terminal; And this first base station obtains the descending address that the second base station is the same adjacent communication of the second terminal distribution, and the upper row address of described adjacent communication using the descending address getting as first terminal, to set up the path corresponding to adjacent communication of first terminal, thereby realized first terminal and the second terminal and carry out via base station the adjacent communication of transfer of data, and the embodiment of the present invention does not need to introduce new control node.

Brief description of the drawings

Fig. 1 is the process schematic diagram that in background technology, terminal room transmits data via core net;

Fig. 2 A is the Organization Chart of the first adjacent communication of terminal room in background technology;

Fig. 2 B is the Organization Chart of the second adjacent communication of terminal room in background technology;

Fig. 3 is the path establishment method of the adjacent communication of embodiment of the present invention terminal room;

Fig. 4 is the network architecture diagram of embodiment of the present invention the first adjacent communication;

Fig. 5 is the schematic flow sheet of first specific embodiment of the present invention;

Fig. 6 is the network architecture diagram of embodiment of the present invention the second adjacent communication;

Fig. 7 is the schematic flow sheet of second specific embodiment of the present invention;

Fig. 8 is the network architecture diagram of the third adjacent communication of the embodiment of the present invention;

Fig. 9 is the schematic flow sheet of the 3rd specific embodiment of the present invention;

Figure 10 is the schematic flow sheet of the 4th specific embodiment of the present invention;

Figure 11 is the schematic flow sheet of the 4th specific embodiment of the present invention;

Figure 12 is the schematic flow sheet of the 5th specific embodiment of the present invention;

The structural representation of the base station that Figure 13 provides for the embodiment of the present invention;

The structural representation of the MME that Figure 14 provides for the embodiment of the present invention.

Embodiment

The embodiment of the present invention the first base station, according to the first adjacent communication request to create receiving, is the adjacent communication allocation of downlink address of first terminal; And obtain the descending address that the second base station is the same adjacent communication of the second terminal distribution, and the upper row address of described adjacent communication using the descending address getting as first terminal, to set up the path corresponding to adjacent communication of first terminal.

In the embodiment of the present invention, suppose to there is proximity relations between two terminals, and meet the condition of setting up via the adjacent communication of base station route;

Wherein, between two terminals, whether there is proximity relations, can judge by the proximity relations discover method based on terminal, also can judge by network proximity relations discover method, can also judge by the proximity relations discover method based on application;

Two terminals need to meet following three conditions, and network side can be between these two terminals, to set up the adjacent communication via base station route:

1, signing condition, that is: two terminals all have the CAMEL-Subscription-Information that uses adjacent communication service, and these two terminals all agree to use adjacent communication service;

2, channel condition, that is: the business of transmitting between two terminals and/or data flow can be used adjacent communication mode to transmit;

3, the radio link conditions of two terminal rooms does not meet the condition of setting up directapath (direct path), or the network configuration of these two terminals is that proximal subscribers is set up the adjacent communication via base station route.

In the embodiment of the present invention, technical scheme of the present invention for convenience of explanation, " first ", " second " printed words are used, two different terminals need to setting up adjacent communication are distinguished, first terminal represents a terminal in this adjacent communication, and the second terminal represents another terminal in this adjacent communication; Further, the first base station represents the current resident base station of first terminal, and the second base station represents the current resident base station of the second terminal, and wherein, the first base station may be identical with the second base station, also may be different; The one MME represents the serving MME of first terminal, and the 2nd MME represents the serving MME of the second terminal, and wherein, a MME and the 2nd MME may be identical, also may be different.

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

Shown in Figure 3, the path establishment method of the adjacent communication of the terminal room that the embodiment of the present invention provides, comprises the following steps:

Step 31, the first base station, according to the first adjacent communication request to create receiving, are the adjacent communication allocation of downlink address of first terminal;

Wherein, first terminal and the second terminal are two different terminals in this adjacent communication; The first base station is the current resident base station of first terminal, and the second base station is the second current resident base station of terminal;

Step 32, the first base station obtain the descending address that the second base station is the same adjacent communication of the second terminal distribution, and using the descending address getting as upper row address corresponding to first terminal, thereby the path that has completed the adjacent communication of first terminal is set up.

In the embodiment of the present invention, in the first adjacent communication request to create that the first base station receives, carry the ID of trace route path of the identification information of first terminal and the adjacent communication of first terminal.

In the embodiment of the present invention, for before setting up the path of adjacent communication between first terminal and the second terminal, there are two kinds of situations below:

Between the first, this first terminal and the second terminal, set up the data transfer path via core net;

In this situation, if meet the condition of adjacent communication between first terminal and the second terminal, can be for setting up the path of adjacent communication between first terminal and the second terminal, the data that first terminal and the second terminal are transmitted via core net, switch to via transmitting base station;

In this situation, when setting up the path of adjacent communication between first terminal and the second terminal, Evolved Packet System (EvolvedPacket System, the EPS) bearing identification of the carrying of having set up between reusable first terminal (the second terminal) and core net is for the adjacent communication of first terminal; Also can use EPS bearing identification that a MME is new for first terminal the distributes adjacent communication for first terminal;

Further, if the adjacent communication of first terminal is reused the EPS bearing identification of the carrying of having set up between first terminal and core net, in the first adjacent communication request to create that the first base station receives, also carry the EPS bearing identification of the carrying of having set up between first terminal and core net; Preferably, if variation has occurred qos parameter corresponding to current this first terminal, in this first adjacent communication request to create, also carry the qos parameter that first terminal is corresponding.

Accordingly, in step 31, the first base station is according to the EPS bearing identification carrying in this first adjacent communication request to create, determine the qos parameter that first terminal is corresponding, and according to the ID of trace route path carrying in the first adjacent communication request to create and qos parameter corresponding to self definite first terminal, for the adjacent communication of first terminal distributes and descending address.

Further, in this situation, if the adjacent communication of first terminal uses the adjacent communication of the MME EPS bearing identification new for first terminal distributes for first terminal, in the first adjacent communication request to create that the first base station receives, also carry the qos parameter that first terminal is corresponding; Preferably, in this first adjacent communication request to create, can also carry new EPS bearing identification.

Accordingly, under which, in step 31, the first base station is according to the ID of trace route path carrying in this first adjacent communication request to create and qos parameter corresponding to first terminal, for the adjacent communication of first terminal distributes and descending address.

Between the second, this first terminal and the second terminal, do not set up the path of any transfer of data;

In this situation, if meet the condition of adjacent communication between first terminal and the second terminal, can be for setting up the path of adjacent communication between first terminal and the second terminal, be that this first terminal distributes new EPS bearing identification for first terminal provides a MME of service, for the adjacent communication of this first terminal; Be the EPS bearing identification that this second terminal distribution is new for the second terminal provides the 2nd MME of service, for the same adjacent communication of this second terminal;

Further, in this situation, in the first adjacent communication request to create that the first base station receives, also carry the qos parameter that first terminal is corresponding; Preferably, in this first adjacent communication request to create, can also carry new EPS bearing identification.

The first adjacent communication request to create that the second adjacent communication request to create receiving due to the second base station receives to the first base station is similar, repeats no more herein.

In the embodiment of the present invention, the first base station and the second base station can be same base station, can be also different base station; Equally, a MME and the 2nd MME can be same MME, can be also different MME.

From following three kinds of situations, the embodiment of the present invention is elaborated below.

The first situation: the first base station and the second base station are same base station, and a MME and the 2nd MME are same MME;

In the present embodiment, in step 31, first terminal receives the first adjacent communication request to create, specifically comprises:

The one MME is determining and need to set up adjacent communication for first terminal and the second terminal, and determining that described the first base station and the second base station meet while setting up the condition of adjacent communication, send the first adjacent communication request to create to the first base station.

Wherein, this condition of setting up adjacent communication comprises:

The first base station and the second base station are same base station; Or the first base station is to exist interface to be connected between different base station and the first base station and the second base station with the second base station.

Because a MME is the serving MME of first terminal and the second terminal, therefore, the contextual information of the first terminal that the one MME can preserve according to self obtains current the first resident base station of this first terminal and qos parameter corresponding to this first terminal, and the contextual information of second terminal of preserving according to self obtains current the second resident base station of this second terminal and qos parameter corresponding to this second terminal; The one MME can be according to the identification information of the identification information of the first base station and the second base station, determines that the first base station and the second base station are same base station, and then determines that this first terminal and this second terminal can set up adjacent communication.

Further, in the present embodiment, the identification information that the first adjacent communication request to create also carries the second terminal with and the parameter information relevant to setting up adjacent communication.

In the present embodiment, step 31 specifically comprises:

The first base station, according to this first adjacent communication request to create, is respectively the same adjacent communication allocation of downlink address of first terminal and the second terminal.

Further, the first base station is the adjacent communication of setting up between first terminal and the second terminal, also need to distribute respectively this adjacent communication for first terminal and the second terminal, this resource specifically comprises and is applicable to transfer resource in interface-free resources that the qos parameter of this adjacent communication and first terminal (or second terminal) requires and base station.

In the present embodiment, step 32 specifically comprises:

The first base station is obtained from the descending address as the same adjacent communication of the second terminal distribution, and using the descending address getting as upper row address corresponding to first terminal;

The first base station is obtained from the descending address of distributing as first terminal, and using the descending address getting as upper row address corresponding to the second terminal.

In the present embodiment, the descending address that the first base station is respectively first terminal and the second terminal distribution can be two Tunnel End Point Identifier (User planepart of GPRS Tunneling Protocol Fully qualified-Tunnel Endpoint Identity, GTP-UF-TEID that different General Packet Radio System user face tunnel protocols is complete; General Paccket Radio System, GPRS), can be also that two different this locality for carry out data retransmission at this inside of base station identify (Local ID);

Wherein, GTP-U F-TEID comprises GTP-U TEID and IP address.

In the present embodiment, after step 32, the method also comprises:

The first base station notifies the path of the same adjacent communication that a MME self completed first terminal and the second terminal to set up.

Accordingly, a MME is receiving after the notice of the first base station, sends the first adjacent communication notice to first terminal, and this first adjacent communication notice is used for notifying first terminal adjacent communication to set up;

The one MME sends the second adjacent communication notice to the second terminal, and this second adjacent communication notice is used for notifying the second terminal adjacent communication to set up.

Wherein, in this first adjacent communication notice, carry the EPS bearing identification that this first terminal is corresponding; In this second adjacent communication notice, carry EPS bearing identification corresponding to this second terminal.Concrete:

If set up the data transfer path via core net between this first terminal and the second terminal, the EPS bearing identification carrying in the first adjacent communication notice is the EPS bearing identification of the carrying of first terminal and core net foundation;

If do not set up any data transfer path that carries out between this first terminal and the second terminal, the EPS bearing identification carrying in the first adjacent communication notice is that a MME is the new EPS bearing identification for adjacent communication that first terminal distributes.

Same, if set up the data transfer path via core net between this first terminal and the second terminal, the EPS bearing identification carrying in the second adjacent communication notice is the EPS bearing identification of the carrying of the second terminal and core net foundation;

If do not set up any data transfer path that carries out between this first terminal and the second terminal, the EPS bearing identification carrying in the second adjacent communication notice is that a MME is the new EPS bearing identification for adjacent communication of the second terminal distribution.

Preferably, in this first adjacent communication notice, also carrying a MME is the ID of trace route path that the adjacent communication between first terminal and the second terminal distributes;

In this second adjacent communication notice, also carrying a MME is the ID of trace route path that the adjacent communication between first terminal and the second terminal distributes.

Further, there is variation if set up between first terminal and the second terminal via data transfer path and the qos parameter corresponding to first terminal of core net, in this first adjacent communication notice, also carried the qos parameter that first terminal is corresponding;

There is variation if set up between first terminal and the second terminal via data transfer path and the qos parameter corresponding to the second terminal of core net, in this second adjacent communication notice, also carried qos parameter corresponding to the second terminal.

Further, if do not set up any path of carrying out transfer of data between first terminal and the second terminal, in this first adjacent communication notice, also carry the qos parameter that first terminal is corresponding;

If do not set up any path of carrying out transfer of data between first terminal and the second terminal, in this second adjacent communication notice, also carry qos parameter corresponding to the second terminal.

Preferably, this first adjacent communication notice and this second adjacent communication notice respectively via the first base station transparent forwarding to first terminal and the second terminal.

Now, the path via the adjacent communication of the first base station route between first terminal and the second terminal is set up, the second terminal that the path of this adjacent communication is: first terminal---first base station---; First terminal and the second terminal can be carried out transfer of data by this adjacent communication.

The second situation: the first base station and the second base station are different base station, and a MME and the 2nd MME are same MME;

In the present embodiment, in step 31, the first base station receives the first adjacent communication request to create, specifically comprises:

The one MME, determining and need to setting up after adjacent communication for first terminal and the second terminal, sends the first adjacent communication request to create to the first base station; And

The one MME sends the second adjacent communication request to create to the second base station, this second adjacent communication request to create is same adjacent communication distribution and the descending address of the second terminal for asking the second base station.

The the first adjacent communication request to create sending due to a MME is identical with the first situation, and the second adjacent communication request to create that a MME sends is similar to the first adjacent communication request to create, repeats no more herein.

It should be noted that, the order that a MME is not sent to the first adjacent communication request to create and the second adjacent communication request to create in the present embodiment limits, the one MME can first send the first adjacent communication request to create to the first base station, then sends the second adjacent communication request to create to the second base station; The one MME also can first send the second adjacent communication request to create to the second base station, then sends the first adjacent communication request to create to the first base station.

Because a MME is the serving MME of first terminal and the second terminal, therefore, the contextual information of the first terminal that the one MME can preserve according to self obtains the current resident base station of this first terminal and qos parameter corresponding to this first terminal, and the contextual information of second terminal of preserving according to self obtains the current resident base station of this second terminal and qos parameter corresponding to this second terminal;

The one MME can be according to the identification information of the identification information of the first base station and the second base station, determines that the first base station and the second base station are different base station; Further a MME need to determine that between the first base station and the second base station, whether having interface is connected (as X2 interface), if there is interface connection, a MME determines that this first terminal and this second terminal can set up adjacent communication.

Further, in the present embodiment, in step 31, the first base station is the path of setting up the adjacent communication of first terminal, also need to distribute the required resource of this adjacent communication for first terminal, wherein, this resource comprises and is applicable to transfer resource between interface-free resources that the qos parameter of this adjacent communication and first terminal requires and base station.

Same, the second base station is the path of setting up the adjacent communication of the second terminal, also needing is the required resource of this adjacent communication of the second terminal distribution, wherein, this resource comprises and is applicable to transfer resource between interface-free resources that the qos parameter of this adjacent communication and the second terminal requires and base station, because the processing procedure of the second base station is identical with the processing procedure of the first base station, repeat no more herein.

In the present embodiment, after step 31, and before step 32, the method also comprises:

The first base station notifies a MME self to complete the distribution of the descending address of the adjacent communication that first terminal is corresponding, and carries from the descending address of distributing as adjacent communication corresponding to first terminal.

Accordingly, a MME is receiving after the notice of the first base station, and descending address corresponding first terminal is transmitted to the second base station;

It should be noted that, because the serving MME of the second base station is a MME, herein, a MME, receiving the first base station after descending address corresponding to the first terminal of its transmission, is directly transmitted to the second base station.

Further, the second base station receives descending address corresponding to first terminal that a MME sends, and using the descending address receiving as upper row address corresponding to the second terminal.

Because the processing procedure of the second base station is identical with the processing procedure of the first base station, therefore, the second base station the adjacent communication that is the second terminal distribute and descending address after, also the distribution that can notify a MME self to complete the descending address of adjacent communication corresponding to the second terminal, and carry from the descending address of distributing as adjacent communication corresponding to the second terminal.

Accordingly, a MME, receiving the second base station after the notice that carries descending address corresponding to the second terminal of its transmission, is directly transmitted to the first base station by descending address corresponding this second terminal.

In the present embodiment, step 32 specifically comprises:

The first base station receives descending address corresponding to the second terminal that a MME sends, and using the descending address receiving as upper row address corresponding to first terminal.

In the present embodiment, the descending address that the adjacent communication that the first base station is first terminal distributes is GTP-UF-TEID; The second base station is that the descending address that the adjacent communication of the second terminal distributes is GTP-U F-TEID;

Wherein, GTP-U F-TEID comprises GTP-U TEID and IP address.

In the embodiment of the present invention, after the distribution of descending address that a MME self completed the adjacent communication that first terminal is corresponding is notified in the first base station, the method also comprises:

The one MME is receiving after the notice of the first base station, sends the first adjacent communication notice to first terminal, and this first adjacent communication notice is for notifying the path of first terminal adjacent communication to set up.

Preferably, this first adjacent communication is notified via the first base station transparent forwarding to first terminal.

Same, a MME is receiving after the notice of the second base station, sends the second adjacent communication notice to the second terminal, and this second adjacent communication notice is for notifying the path of the second terminal adjacent communication to set up.

Preferably, this second adjacent communication notice is given the second terminal via the second base station transparent forwarding.

In the embodiment of the present invention, the second base station is the same adjacent communication distribution of the second terminal and the process of descending address according to the second adjacent communication request to create, and second reciprocal process between base station and a MME, identical with the processing procedure of the first base station, refer to the processing procedure of the first base station, the present invention no longer describes the processing procedure of the second base station.

---the first base station---second base station---the second terminal that now, set up between first terminal and the second terminal via the adjacent communication of the first base station route, the path of this adjacent communication is: first terminal; First terminal and the second terminal can be carried out transfer of data by this adjacent communication.

The third situation, a MME are in this situation of different MME(from the 2nd MME, and the first base station may be identical with the second base station, also may be different); Further, comprise following two kinds of modes:

Mode A, a MME determining and need to set up adjacent communication for first terminal and the second terminal, and after determining and self not being the serving MME of the second terminal, send adjacent communication foundation and ask, and according to the feedback of the 2nd MME, process to the 2nd MME.

In the present embodiment, the method also comprises:

The one MME is determining and need to set up after adjacent communication for first terminal and the second terminal, sends adjacent communication set up request to the 2nd MME, in this adjacent communication foundation request, carries the identification information of the first base station and the identification information of the second terminal;

Preferably, this adjacent communication is set up the EPS bearing identification and qos parameter corresponding to this first terminal that in request, also carry first terminal;

Wherein, if set up the data transfer path via core net between first terminal and the second terminal: it is the EPS bearing identification of the carrying of having set up between this first terminal and core net that this adjacent communication is set up what carry in request;

If do not set up the path of any transfer of data between this first terminal and the second terminal: what this adjacent communication carried in setting up and asking is that a MME is the new EPS bearing identification that first terminal distributes.

The 2nd MME sets up request according to the adjacent communication receiving, and judges whether the first base station and the second base station meet the condition of setting up adjacent communication;

Wherein, this condition of setting up adjacent communication comprises:

The first base station and the second base station are same base station; Or the first base station is to exist interface to be connected (as X2 interface) between different base station and the first base station and the second base station with the second base station.

Accordingly, because the 2nd MME is the serving MME of the second terminal, therefore, the 2nd MME can be according to the identification information of the second terminal, the contextual information of preserving from self, obtain the contextual information of the second terminal, and according to the contextual information of this second terminal, determine this second terminal current resident the second base station and identification information thereof.

Wherein, the 2nd MME can be according to the identification information of the identification information of the first base station and the second base station, judges whether the first base station and the second base station are same base; Concrete:

If the identification information of the first base station is identical with the identification information of the second base station, the 2nd MME determines that the first base station and the second base station are same base station;

If the identification information of the first base station is different from the identification information of the second base station, the 2nd MME determines that the first base station and the second base station are different base station.

Further, be different base station if the 2nd MME determines the first base station and the second base station, the 2nd MME judges between the first base station and the second base station whether exist interface to be connected.

In the present embodiment, judged result comprises following three kinds of possibilities:

One, judged result is: the first base station and the second base station are same base station:

If the adjacent communication receiving is set up the EPS bearing identification and qos parameter corresponding to this first terminal that also carry first terminal in request, the 2nd MME sends the first adjacent communication request to create to the first base station, distribute and descending address with the same adjacent communication of asking the first base station to be respectively first terminal and the second terminal; Or

If the adjacent communication receiving is set up the EPS bearing identification and qos parameter corresponding to this first terminal that do not carry first terminal in request, the 2nd MME returns to a MME indication information that carries judged result, and carries EPS bearing identification and the qos parameter corresponding to this second terminal of the second terminal.

Wherein, the EPS bearing identification of the second terminal is similar to the EPS bearing identification of first terminal, repeats no more herein.

Accordingly, if a MME receives the indication information that the 2nd MME sends, a MME sends the first adjacent communication request to create to the first base station, distributes and descending address with the same adjacent communication of asking the first base station to be respectively first terminal and the second terminal.

It should be noted that, in this indication information, can adopt Bit data to represent different judged results, as " 0 " represents that the first base station and the second base station are same base station, " 1 " represents that the first base station and the second base station are different base station, and exists interface to be connected between the first base station and the second base station; Certainly, also can adopt other information to represent different judged results, but need to allow in advance a MME know what implication is each information represent respectively.

It should be noted that, under this scene, the first base station receives processing procedure and the first base station and a MME(or the 2nd MME after the first adjacent communication request to create) reciprocal process, identical with the first situation, refer to processing procedure and reciprocal process in the first situation, repeat no more herein.

Two, judged result is: the first base station and the second base station are different base station, and exists interface to be connected between the first base station and the second base station; :

The 2nd MME returns to a MME indication information that carries judged result.

Accordingly, a MME, receiving after the indication information of the 2nd MME transmission, determines and sends the first adjacent communication request to create to the first base station, to ask adjacent communication distribution and the descending address of the first base station as first terminal.

Further, after judged result is determined, the method also comprises:

The 2nd MME sends the second adjacent communication request to create to the second base station, to ask same adjacent communication distribution and the descending address of the second base station as the second terminal.

It should be noted that, under this scene, the first base station receives processing procedure after the first adjacent communication request to create and the reciprocal process of the first base station and a MME, and second base station receive processing procedure after the second adjacent communication request to create and the reciprocal process of the second base station and the 2nd MME, identical with the second situation, refer to processing procedure and reciprocal process in the second situation, repeat no more herein.

If three judged results are: the first base station and the second base station are different base station, and do not exist any interface to be connected between the first base station and the second base station; :

The adjacent communication that the 2nd MME refusal the one MME sends is set up request.

It should be noted that, in the invention process, the identification information of the first terminal (and second terminal) carrying in the first adjacent communication request to create is the terminal iidentification that the first base station can be identified, as the system architecture evolution temporary mobile subscriber identity of first terminal (SAE-Temporary Mobile Subscriber Identity, S-TMSI; System Architecture Evolution, SAE);

The identification information of second terminal of carrying in the second adjacent communication request to create is the terminal iidentification that the second base station can be identified, as the S-TMSI of first terminal;

The identification information that adjacent communication is set up second terminal of carrying in request is the terminal iidentification that the 2nd MME can identify, as international mobile subscriber identity (International Mobile Subscriber Identity, IMSI);

This adjacent communication is set up the identification information of first base station of carrying in request, as evolved universal mobile communication system land radio access web Cell Global Identity (E-UTRAN Cell Global Identifier, ECGI; Evolved UMTS Terrestrial Radio Access Network, E-UTRAN; Universal MobileTelecommunications System, UMTS) etc.

Enumerate five specific embodiments below, in conjunction with concrete application scenarios, the embodiment of the present invention is realized being elaborated alternately between each equipment in the process of adjacent communication of terminal room, following examples are all taking the path of not setting up any transfer of data between first terminal and the second terminal as example describes, between this first terminal and the second terminal, set up via the situation of the data transfer path of core net and referred to foregoing description, the present invention illustrates no longer one by one.

Embodiment 1, suppose that UE_A and UE_B meet proximity relations and meet the condition of setting up via the adjacent communication of base station route; To be UE_A identical from the serving MME of UE_B and serving BS is different for the application scenarios of the present embodiment, and the serving BS of UE_A is eNB1, and the serving BS of UE_B is eNB2, and between eNB1 and eNB2, bearing interface is connected, and its network architecture is shown in Figure 4.In the present embodiment, set up the process via the adjacent communication of base station route, shown in Figure 5, comprise the following steps:

Step 51, MME determine to be that UE_A and UE_B set up the adjacent communication through base station route, and are the ID of trace route path (being designated as ProSe-Path-ID) of the adjacent communication distribution adjacent communication between UE_A and UE_B;

Step 52a, MME are that UE_A distributes EPS bearing identification (being designated as bearer-ID-A), and send adjacent communication request to create message, the information such as identification information (as the S-TMSI of UE_A) and the qos parameter of UE_A of carrying ProSe-Path-ID, UE_A in this request message to eNB1;

Step 52b, MME are that UE_B distributes EPS bearing identification (being designated as bearer-ID-B), and send adjacent communication request to create message to eNB2, in this request message, carry ProSe-Path-ID, the information such as identification information (as the S-TMSI of UE_B) and the qos parameter of UE_B of UE_B;

In the present embodiment, the execution sequence of step 52a and step 52b is not limited, can first perform step 52a, then perform step 52b; Also can first perform step 52b, then perform step 52a; Can also perform step 52a and step 52b simultaneously.

Step 53a, receiving after the adjacent communication request to create message that MME sends, adjacent communication that the ID of trace route path that eNB1 is UE_A is ProSe-Path-ID distribute be applicable between the adjacent communication of this UE_A and interface-free resources that qos parameter requires and base station transfer resource and descending GTP-U F-TEID(corresponding to this adjacent communication comprises GTP-U TEID and IP address) (being designated as F-TEID-1); And send and create adjacent communication response message to MME, in this response message, carry F-TEID-1;

Step 53b, receiving after the adjacent communication request to create message that MME sends, the adjacent communication path allocation of what eNB2 was UE_B be designated ProSe-Path-ID is applicable between the adjacent communication of this UE_B and interface-free resources that qos parameter requires and base station transfer resource and descending GTP-U F-TEID(comprises GTP-U TEID and IP address) (being designated as F-TEID-2); And send and create adjacent communication response message to MME, in this response message, carry F-TEID-2;

In the present embodiment, the execution sequence of step 53a and step 53b is not limited, can first perform step 53a, then perform step 53b; Also can first perform step 53b, then perform step 53a; Can also perform step 53a and step 53b simultaneously.

Step 54a, receiving after the response message that eNB1 returns, the F-TEID-1 that MME distributes eNB1 by amendment adjacent communication message sends to eNB2, also carries the ID of trace route path ProSe-Path-ID of adjacent communication in this amendment adjacent communication message;

Step 54b, receiving after the response message that eNB2 returns, the F-TEID-2 that MME distributes eNB2 by amendment adjacent communication message sends to eNB1, also carries the ID of trace route path ProSe-Path-ID of adjacent communication in this amendment adjacent communication message;

In the present embodiment, the execution sequence of step 54a and step 54b is not limited, can first perform step 54a, then perform step 54b; Also can first perform step 54b, then perform step 54a; Can also perform step 54a and step 54b simultaneously.

Step 55a, MME send adjacent communication notification message to UE_A, with notice, UE_A can carry out with UE_B the transmission of adjacent communication, and in notification message, carries the EPS bearing identification bearer-ID-A of ID of trace route path ProSe-Path-ID, this UE_A of this adjacent communication, the qos parameter of this UE_A;

Further, this adjacent communication notification message via eNB1 transparent forwarding to UE_A;

Now, UE_A can utilize the adjacent communication path of having set up to carry out the transmission of upstream data;

Step 55b, MME send adjacent communication notification message to UE_B, with notice, UE_B can carry out with UE_A the transmission of adjacent communication, and in this notification message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication, the EPS bearing identification bearer-ID-B of this UE_B, the qos parameter of this UE_B;

Further, this adjacent communication notification message via eNB8 transparent forwarding to UE_B;

Now, UE_B can utilize the adjacent communication path of having set up to carry out the transmission of upstream data;

In the present embodiment, the execution sequence of step 55a and step 55b is not limited, can first perform step 55a, then perform step 55b; Also can first perform step 55b, then perform step 55a; Can also perform step 55a and step 55b simultaneously.

Step 56a, eNB1 are receiving after the amendment adjacent communication message of MME transmission, the upper row address of determining the adjacent communication of UE_A is F-TEID-2, and set up and complete by the path of amendment adjacent communication response message notice MME adjacent communication, in this message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication;

Step 56b, eNB2 are receiving after the amendment adjacent communication message of MME transmission, the upper row address of determining the adjacent communication of UE_B is F-TEID-1, and set up and complete by the path of amendment adjacent communication response message notice MME adjacent communication, in this message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication;

In the present embodiment, the execution sequence of step 56a and step 56b is not limited, can first perform step 56a, then perform step 56b; Also can first perform step 56b, then perform step 56a; Can also perform step 56a and step 56b simultaneously.

In the present embodiment, the path of the adjacent communication of foundation is: UE_A, and---eNB1---eNB2---UE_B, UE_A can ask application to be connected to carry out transfer of data by adjacent communication with UE_B.

In the present embodiment, the execution sequence of step 55a and step 55b and step 56a and step 56b is not limited, step 55a and step 55b can carry out before step 56a and step 56b, step 55a and step 55b also can carry out after step 56a and step 56b, and step 55a and step 55b can also carry out with step 56a and step 56b simultaneously.

Embodiment 2, suppose that UE_A and UE_B meet proximity relations and meet the condition of setting up via the adjacent communication of base station route; To be UE_A identical with the serving MME of UE_B and serving BS is identical for the application scenarios of the present embodiment, and its network architecture is shown in Figure 6.In the present embodiment, foundation is shown in Figure 7 via the process of the adjacent communication of base station route, comprises the following steps:

Step 71, MME determine to be that UE_A and UE_B set up the adjacent communication through base station route, and are the ID of trace route path (being designated as ProSe-Path-ID) of the adjacent communication distribution adjacent communication between UE_A and UE_B;

Step 72, MME are that UE_A distributes EPS bearing identification (being designated as bearer-ID-A), and are UE_B distribution EPS bearing identification (being designated as bearer-ID-B); And send adjacent communication request to create message, the information such as identification information (as the S-TMSI of UE_A), qos parameter (being designated as qos parameter A), the identification information (as the S-TMSI of UE_B) of UE_B and the qos parameter (being designated as qos parameter B) of this UE_B of this UE_A of carrying ProSe-Path-ID, UE_A in this request message to eNB;

Step 73, receiving after the adjacent communication request to create message that MME sends, adjacent communication that the ID of trace route path that eNB is UE_A is ProSe-Path-ID distribute be applicable to the adjacent communication of this UE_A and interface-free resources and descending GTP-U F-TEID(corresponding to this adjacent communication that qos parameter A requires comprise GTP-U TEID and IP address) (being designated as F-TEID-1); And the adjacent communication of eNB to be UE_B be designated ProSe-Path-ID distribute be applicable to interface-free resources and descending GTP-U F-TEID(that this UE_B adjacent communication and qos parameter require and comprise GTP-U TEID and IP address) (being designated as F-TEID-2);

ENB determines that the upper row address of the adjacent communication that is designated ProSe-Path-ID of UE_A is F-TEID-2; And eNB determines that the upper row address of the adjacent communication that is designated ProSe-Path-ID of UE_B is F-TEID-1.

Step 74, eNB send and create adjacent communication response message to MME, carry the ID of trace route path ProSe-Path-ID of this adjacent communication, to notify MME ID of trace route path to set up as the path of the adjacent communication of ProSe-Path-ID in this response message;

Step 75a, MME send adjacent communication notification message to UE_A, with notice, UE_A can carry out with UE_B the transmission of adjacent communication, and in notification message, carries the EPS bearing identification bearer-ID-A of ID of trace route path ProSe-Path-ID, this UE_A of this adjacent communication, the qos parameter of this UE_A;

Step 75b, MME send adjacent communication notification message to UE_B, with notice, UE_B can carry out with UE_A the transmission of adjacent communication, and in this notification message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication, the EPS bearing identification bearer-ID-B of this UE_B, the qos parameter of this UE_B;

In the present embodiment, the execution sequence of step 75a and step 75b is not limited, can first perform step 75a, then perform step 75b; Also can first perform step 75b, then perform step 75a; Can also perform step 75a and step 75b simultaneously.

In the present embodiment, the path of the adjacent communication of foundation is: UE_A---eNB---UE_B, UE_A can ask application to be connected to carry out transfer of data by adjacent communication with UE_B.

In the present embodiment, step 73 can also replace with:

Receiving after the adjacent communication request to create message of MME transmission, the adjacent communication distribution that the ID of trace route path that eNB is UE_A is ProSe-Path-ID is applicable to the adjacent communication of this UE_A and the interface-free resources of qos parameter A requirement and this locality mark (being designated as Local-ID-1) corresponding to this adjacent communication; And the adjacent communication of eNB to be UE_B be designated ProSe-Path-ID distributes and is applicable to the interface-free resources that this UE_B adjacent communication and qos parameter require and this locality mark (being designated as Local-ID-2) that is different from Local-ID-1;

ENB determines that the upper row address of the adjacent communication that is designated ProSe-Path-ID of UE_A is Local-ID-2; And eNB determines that the upper row address of the adjacent communication that is designated ProSe-Path-ID of UE_B is Local-ID-1.

Embodiment 3, suppose that UE_A and UE_B meet proximity relations and meet the condition of setting up via the adjacent communication of base station route, the application scenarios of the present embodiment is that UE_A is different from the serving MME of UE_B, and UE_A is identical with the serving BS of UE_B, supposes to be eNB.

The serving MME of supposing UE_A is MME1, and the serving MME of UE_B is MME2, and wherein, MME1 is different from MME2, and its network architecture is shown in Figure 8.In the present embodiment, foundation is shown in Figure 9 via the process of the adjacent communication of base station route, comprises the following steps:

Step 901, MME1 determine to be that UE_A and UE_B set up the adjacent communication through base station route, and are the ID of trace route path (being designated as ProSe-Path-ID) of the adjacent communication distribution adjacent communication between UE_A and UE_B;

Step 902, MME1 are that UE_A distributes EPS bearing identification (being designated as bearer-ID-A);

Step 903, MME1 send and set up adjacent communication request message to MME2, and this sets up the identification information (as IMSI) that carries ProSe-Path-ID, UE_B in adjacent communication request message, identification information, the qos parameter of UE_A and the EPS bearing identification of UE_A of the current resident base station of UE_A;

Step 904, MME2 are set up after adjacent communication request message receiving, and judge whether the current resident base station of UE_A and UE_B meets the condition of setting up adjacent communication;

In the present embodiment, judged result is the current resident same base station of UE_A and UE_B.

Step 905, MME2 are that UE_B distributes EPS bearing identification (being designated as bearer-ID-B);

Step 906, MME2 send adjacent communication request to create message to eNB, carry the identification information (as the S-TMSI of UE_A) of ProSe-Path-ID, UE_A, the qos parameter of UE_A, the information such as identification information (as the S-TMSI of UE_B) and the qos parameter of UE_B of UE_B in this request message;

Step 907, receiving after the adjacent communication request to create message that MME2 sends, adjacent communication that the ID of trace route path that eNB is UE_A is ProSe-Path-ID distribute be applicable to the adjacent communication of this UE_A and interface-free resources and descending GTP-U F-TEID(corresponding to this adjacent communication that qos parameter A requires comprise GTP-U TEID and IP address) (being designated as F-TEID-1); And the adjacent communication of eNB to be UE_B be designated ProSe-Path-ID distribute be applicable to interface-free resources and descending GTP-U F-TEID(that this UE_B adjacent communication and qos parameter require and comprise GTP-U TEID and IP address) (being designated as F-TEID-2);

Step 908, eNB send and create adjacent communication response message to MME1, complete to notify the path of adjacent communication of MME1UE_A to set up;

Step 909, eNB send and create adjacent communication response message to MME2, complete to notify the path of adjacent communication of MME2UE_B to set up;

Step 910, MME1 send adjacent communication notification message to UE_A, with notice, UE_A can carry out with UE_B the transmission of adjacent communication, and in this notification message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication, the information such as EPS bearing identification bearer-ID-A and the qos parameter of this UE_A of this UE_A;

After this, UE_A can utilize the adjacent communication path of having set up to carry out the transmission of upstream data;

Preferably, this adjacent communication notification message via eNB transparent forwarding to UE_B.

Step 911, MME2 send adjacent communication notification message to UE_B, with notice, UE_B can carry out with UE_A the transmission of adjacent communication, and in this notification message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication, the information such as EPS bearing identification bearer-ID-B and the qos parameter of this UE_B of this UE_B;

After this, UE_B can utilize the adjacent communication path of having set up to carry out the transmission of upstream data;

In the present embodiment, step 907 can also replace with:

Receiving after the adjacent communication request to create message of MME2 transmission, the adjacent communication distribution that the ID of trace route path that eNB is UE_A is ProSe-Path-ID is applicable to the adjacent communication of this UE_A and the interface-free resources of qos parameter A requirement and this locality mark (being designated as Local-ID-1) corresponding to this adjacent communication; And the adjacent communication of eNB to be UE_B be designated ProSe-Path-ID distributes and is applicable to the interface-free resources that this UE_B adjacent communication and qos parameter require and this locality mark (being designated as Local-ID-2) that is different from Local-ID-1;

In the present embodiment, step 908 and the execution sequence of step 909 are not limited, can first perform step 908, then perform step 909; Also can first perform step 909, then perform step 908;

Same, also step 910 and the execution sequence of step 911 are not limited, can first perform step 910, then perform step 911; Also can first perform step 911, then perform step 910.

Embodiment 4, suppose that UE_A and UE_B meet proximity relations and meet the condition of setting up via the adjacent communication of base station route, the application scenarios of the present embodiment is that UE_A is different from the serving MME of UE_B, and UE_A is identical with the serving BS of UE_B, supposes to be eNB.

The serving MME of supposing UE_A is MME1, and the serving MME of UE_B is MME2, and wherein, MME1 is different from MME2, and its network architecture is shown in Figure 8.In the present embodiment, foundation is shown in Figure 10 via the process of the adjacent communication of base station route, comprises the following steps:

Step 1001, MME1 determine to be that UE_A and UE_B set up the adjacent communication through base station route, and are the ID of trace route path (being designated as ProSe-Path-ID) of the adjacent communication distribution adjacent communication between UE_A and UE_B;

Step 1002, MME1 are that UE_A distributes EPS bearing identification (being designated as bearer-ID-A);

Step 1003, MME1 send and set up adjacent communication request message to MME2, and this sets up the identification information (as IMSI) that carries ProSe-Path-ID, UE_B in adjacent communication request message, the identification information of the current resident base station of UE_A;

Step 1004, MME2 are set up after adjacent communication request message receiving, and judge whether the current resident base station of UE_A and UE_B meets the condition of setting up adjacent communication;

Step 1005, MME2 are that UE_B distributes EPS bearing identification (being designated as bearer-ID-B);

Step 1006, MME2 return and set up adjacent communication response message to MME1, carry the qos parameter of judged result and UE_B and the EPS bearing identification of UE_B;

Step 1007, MME1 are set up after adjacent communication response message receiving this, send adjacent communication request to create message to eNB, in this request message, carry the identification information (as the S-TMSI of UE_A) of ProSe-Path-ID, UE_A, the qos parameter of UE_A, the information such as identification information (as the S-TMSI of UE_B) and the qos parameter of UE_B of UE_B;

Step 1008, receiving after the adjacent communication request to create message that MME1 sends, adjacent communication that the ID of trace route path that eNB is UE_A is ProSe-Path-ID distribute be applicable to the adjacent communication of this UE_A and interface-free resources and descending GTP-U F-TEID(corresponding to this adjacent communication that qos parameter A requires comprise GTP-U TEID and IP address) (being designated as F-TEID-1); And the adjacent communication of eNB to be UE_B be designated ProSe-Path-ID distribute be applicable to interface-free resources and descending GTP-U F-TEID(that this UE_B adjacent communication and qos parameter require and comprise GTP-U TEID and IP address) (being designated as F-TEID-2);

Step 1009, eNB send and create adjacent communication response message to MME1, complete to notify the path of adjacent communication of MME1UE_A to set up;

Step 1010, eNB send and create adjacent communication response message to MME2, complete to notify the path of MME2UE_B adjacent communication to set up;

Step 1011, MME1 send adjacent communication notification message to UE_A, with notice, UE_A can carry out with UE_B the transmission of adjacent communication, and in this notification message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication, the information such as EPS bearing identification bearer-ID-A and the qos parameter of this UE_A of this UE_A;

Step 1012, MME2 send adjacent communication notification message to UE_B, with notice, UE_B can carry out with UE_A the transmission of adjacent communication, and in this notification message, carry the ID of trace route path ProSe-Path-ID of this adjacent communication, the information such as EPS bearing identification bearer-ID-B and the qos parameter of this UE_B of this UE_B;

In the present embodiment, step 1008 can also replace with:

Receiving after the adjacent communication request to create message of MME1 transmission, the adjacent communication distribution that the ID of trace route path that eNB is UE_A is ProSe-Path-ID is applicable to the adjacent communication of this UE_A and the interface-free resources of qos parameter A requirement and this locality mark (being designated as Local-ID-1) corresponding to this adjacent communication; And the adjacent communication of eNB to be UE_B be designated ProSe-Path-ID distributes and is applicable to the interface-free resources that this UE_B adjacent communication and qos parameter require and this locality mark (being designated as Local-ID-2) that is different from Local-ID-1;

In the present embodiment, step 909 and the execution sequence of step 910 are not limited, can first perform step 909, then perform step 910; Also can first perform step 910, then perform step 909;

Same, also step 911 and the execution sequence of step 912 are not limited, can first perform step 911, then perform step 912; Also can first perform step 912, then perform step 911.

Embodiment 5, suppose that UE_A and UE_B meet proximity relations and meet the condition of setting up via the adjacent communication of base station route, the application scenarios of the present embodiment is that UE_A is different from the serving MME of UE_B, and UE_A is different from the serving BS of UE_B.

The serving BS of supposing UE_A is that eNB1 and serving MME are MME1, and the serving BS of UE_B is that eNB2 and serving MME are MME2, and wherein, MME1 is different from MME2, and eNB1 is different from eNB2, and its network architecture is shown in Figure 11.In the present embodiment, set up the process via the adjacent communication of base station route, shown in Figure 12, comprise the following steps:

Step 1201, MME1 determine to be that UE_A and UE_B set up the adjacent communication through base station route, and are the ID of trace route path (being designated as ProSe-Path-ID) of the adjacent communication distribution adjacent communication between UE_A and UE_B;

Step 1202, MME1 send and set up adjacent communication request message to MME2, and this sets up the identification information (as IMSI) that carries ProSe-Path-ID, UE_B in adjacent communication request message, identification information and the F-TEID-1 of the current resident base station of UE_A;

Step 1203, MME2 are set up after adjacent communication request message receiving, and judge whether the current resident base station of UE_A and UE_B is whether to have interface between same base station or UE_A and the current resident base station of UE_B;

Further, if determine, UE_A and the current resident base station of UE_B are different base station, and there is no interface between two base stations, the adjacent communication request of setting up of MME2 refusal MME1, and process ends.

Step 1204, be to have interface between Huo Liangge base station, same base station at definite UE_A and the current resident base station of UE_B; MME2 is that UE_B distributes EPS bearing identification (being designated as bearer-ID-B);

Step 1205, MME2 send adjacent communication request to create message to eNB2, carry ProSe-Path-ID, the identification information (as the S-TMSI of UE_B) of UE_B, the information such as qos parameter and F-TEID-1 of UE_B in this request message;

Step 1206, receiving after the adjacent communication request to create message that MME2 sends, the adjacent communication path allocation of what eNB2 was UE_B be designated ProSe-Path-ID is applicable between the adjacent communication of this UE_B and interface-free resources that qos parameter requires and base station transfer resource and descending GTP-U F-TEID(comprises GTP-U TEID and IP address) (being designated as F-TEID-2); And the upper row address of determining the adjacent communication of this UE_B is F-TEID-1;

Step 1207, eNB2 send and create adjacent communication response message to MME2, in this response message, carry F-TEID-2, and notify the path foundation of MME2 adjacent communication to complete;

Step 1208, MME2 return and set up adjacent communication response message to MME1, carry ID of trace route path ProSe-Path-ID and the F-TEID-2 of this adjacent communication in this response message;

Step 1209, MME1 are that UE_A distributes EPS bearing identification, are designated as bearer-ID-A;

Step 1210, MME1 send adjacent communication request to create message, the information such as identification information (as the S-TMSI of UE_A) and the qos parameter of UE_A of carrying ProSe-Path-ID, UE_A in this request message to eNB1; MME1 notice eNB1 simultaneously, the upper row address of UE_A is F-TEID-2;

Step 1211, receiving after the adjacent communication request to create message that MME1 sends, adjacent communication that the ID of trace route path that eNB1 is UE_A is ProSe-Path-ID distribute be applicable between the adjacent communication of this UE_A and interface-free resources that qos parameter requires and base station transfer resource and descending GTP-U F-TEID(corresponding to this adjacent communication comprises GTP-U TEID and IP address) (being designated as F-TEID-1); ENB1 records the upper row address F-TEID-2 of the adjacent communication of MME1 forwarding;

Step 1212, eNB1 send and create adjacent communication response message to MME1, in this response message, carry F-TEID-1;

Step 1213, MME1 send adjacent communication notification message to UE_A, with notice, UE_A can carry out with UE_B the transmission of adjacent communication, and in notification message, carries the EPS bearing identification bearer-ID-A of ID of trace route path ProSe-Path-ID, this UE_A of this adjacent communication, the qos parameter of this UE_A;

Preferably, this adjacent communication notification message via eNB1 transparent forwarding to UE_A;

To complete message be that the descending address F-TEID-1 that UE_A distributes is transmitted to MME2 by eNB1 by setting up adjacent communication for step 1214, MME1;

The F-TEID-1 that step 1215, MME2 distribute eNB1 by amendment adjacent communication message is transmitted to eNB2;

Step 1216, eNB2 record the F-TEID-1 that MME2 forwards, and using F-TEID-1 as upper row address corresponding to UE_B;

Step 1217, eNB2 notice MME2 adjacent communication have been set up;

Step 1218, MME2 send adjacent communication notification message to UE_B, with notice, UE_B can carry out with UE_A the transmission of adjacent communication, and in notification message, carries the EPS bearing identification bearer-ID-B of ID of trace route path ProSe-Path-ID, this UE_B of this adjacent communication, the qos parameter of this UE_B;

Further, this adjacent communication notification message via eNB2 transparent forwarding to UE_B.

Said method handling process can realize with software program, and this software program can be stored in storage medium, in the time that the software program of storage is called, carries out said method step.

Based on above-described embodiment, the embodiment of the present invention also provides a kind of base station, because the principle of dealing with problems in this base station is similar to the path establishment method of the adjacent communication of the terminal room shown in Fig. 3, therefore the enforcement of this base station can be referring to the enforcement of method, repeats part and repeat no more.

Base station shown in Figure 13, the embodiment of the present invention provides, comprising:

The first distribution module 131A, for according to the first adjacent communication request to create receiving, is the adjacent communication allocation of downlink address of current resident first terminal;

The first acquisition module 132A, for obtaining the descending address that the second base station is the same adjacent communication of the second terminal distribution, and using the descending address getting as upper row address corresponding to first terminal;

Wherein, first terminal and the second terminal are two different terminals in adjacent communication; The second base station is the second current resident base station of terminal.

Further, this base station also comprises:

The first notification module 133A, has completed the distribution of the descending address of the adjacent communication of first terminal for notifying as first terminal provides a MME self of service.

Further, if self and the second base station are same base station, base station also comprises:

The second distribution module 131B, for according to the first adjacent communication request to create, is the same adjacent communication allocation of downlink address of the second terminal.

Further, this base station also comprises:

The second acquisition module 132B, for being obtained from the descending address of the adjacent communication distributing as first terminal, and using the descending address getting as upper row address corresponding to the second terminal;

The first acquisition module 131A specifically for:

Be obtained from the descending address as the adjacent communication of the second terminal distribution, and using the descending address getting as upper row address corresponding to first terminal.

Further, this base station also comprises:

The second notification module 133B, has completed the distribution of the descending address of the adjacent communication of the second terminal for notifying as the second terminal provides the 2nd MME self of service.

Further, if self and the second base station are different base station, the first notification module 133A also for:

Carry the descending address that first terminal is corresponding.

Further, if self and the second base station are different base station, the first acquisition module 131A specifically for:

Be received as descending address corresponding to the second terminal that first terminal provides a MME of service to forward, and using the descending address receiving as upper row address corresponding to first terminal;

Wherein, descending address corresponding to the second terminal be by the second base station the same adjacent communication that is the second terminal distribute and descending address after, be transmitted to the 2nd MME that service is provided for the second terminal.

Based on above-described embodiment, the embodiment of the present invention also provides a kind of MME, because the principle that this MME deals with problems is similar to the path establishment method of the adjacent communication of the terminal room shown in Fig. 3, therefore the enforcement of this MME can be referring to the enforcement of method, repeats part and repeat no more.

MME shown in Figure 14, the embodiment of the present invention provides, comprising:

The first request to create sending module 141A, for sending the first adjacent communication request to create to current the first resident base station of first terminal, this first adjacent communication request to create is that first terminal is set up the path of closing on communication for asking the first base station;

The first announcement information sending module 142A, for send the first adjacent communication notice to first terminal, the first adjacent communication notice is for notifying the adjacent communication path that first terminal is corresponding to set up.

Further, if current the second resident base station of the first base station and the second terminal is different base station, and self is identical with the serving MME that is the second terminal, and MME also comprises:

The second request to create sending module 141B, for send the second adjacent communication request to create to the second base station, the second adjacent communication request to create is the path that the second terminal is set up same adjacent communication for asking the second base station;

The second announcement information sending module 142B, after setting up in the path that is used to indicate the same adjacent communication that self has completed first terminal and the second terminal that receives the second base station transmission, send the second adjacent communication notice to the second terminal, the second adjacent communication notice is for notifying adjacent communication path corresponding to the second terminal to set up;

The first logical information sending module 142A specifically for: after receiving the path that is used to indicate the same adjacent communication that self has completed first terminal and the second terminal that the first base station sends and setting up, send the first adjacent communication to first terminal and notify.

Further, if current the second resident base station of the first base station and the second terminal is different base station, MME also comprises:

The first forwarding module 143A, for being that the descending address of adjacent communication that first terminal distributes is transmitted to the second base station by the first base station;

The second forwarding module 143B, for being that the descending address of same adjacent communication of the second terminal distribution is transmitted to the first base station by the second base station.

It should be noted that, if self is identical with the serving MME of the second terminal, the first forwarding module 143A receives descending address corresponding to first terminal sending from the first base station, and descending address corresponding this first terminal is directly sent to the second base station; The second forwarding module 143B directly receives descending address corresponding to the second terminal that the second base station sends, and descending address corresponding this second terminal is sent to the first base station;

If self is different from the serving MME of the second terminal, the first forwarding module 143A receives descending address corresponding to first terminal sending from the first base station, and by the serving MME of the second terminal, descending address corresponding this first terminal is transmitted to the second base station; The second forwarding module 143B receives by the serving MME of the second terminal descending address corresponding to the second terminal that the second base station sends, and descending address corresponding this second terminal is sent to the first base station.

Further, if self is different from the serving MME that is the second terminal, MME also comprises:

Set up request sending module 144, send adjacent communication to the serving MME of the second terminal and set up request, adjacent communication is set up request for asking the serving MME of the second terminal to judge whether the first base station and the second base station meet the condition of setting up adjacent communication, and carries the identification information of the first base station and the identification information of the second terminal in adjacent communication foundation request;

Indication information receiver module 145, the indication information that carries judged result sending for receiving the serving MME of the second terminal.

Further, indication information receiver module 145 also for:

If judged result is the first base station and the second base station is same base station, trigger the first request to create sending module 141A and the second request to create sending module 141B;

If judged result is the first base station and the second base station is different base station, trigger the first request to create sending module 141A.

Determination module 146, sets up after request for the adjacent communication sending in the serving MME that receives the second terminal, judges whether the first base station and the second base station meet the condition of setting up adjacent communication;

If judged result is the first base station and the second base station is same base station, trigger the first request to create sending module and the second request to create sending module; Or send to the serving MME of the second terminal the indication information that carries judged result;

If judged result is the first base station and the second base station is different base station, trigger the first request to create sending module; And send to the serving MME of the second terminal the indication information that carries judged result.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or 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, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.

Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims

1. a path establishment method for the adjacent communication of terminal room, is characterized in that, the method comprises:

2. the method for claim 1, is characterized in that, carries the ID of trace route path of described adjacent communication in described the first adjacent communication request to create.

3. method as claimed in claim 2, is characterized in that, also carries the Evolved Packet System EPS identification information that described first terminal is corresponding in described the first adjacent communication request to create;

Wherein, if set up the data transfer path via core net between described first terminal and described the second terminal, the EPS identification information that described first terminal is corresponding is the EPS bearing identification of the carrying of having set up between described first terminal and core net; If do not set up the path of any transfer of data between described first terminal and described the second terminal, the EPS identification information that described first terminal is corresponding is served as reasons as the EPS bearing identification of a MME distribution of described first terminal service.

4. the method as described in claim 1～3 any one, it is characterized in that, if described the first base station and described the second base station are same base station, described the first base station is according to described the first adjacent communication request to create, for the adjacent communication allocation of downlink address of described first terminal, specifically comprise:

Described the first base station, according to described the first adjacent communication request to create, is respectively the same adjacent communication allocation of downlink address of described first terminal and described the second terminal.

5. method as claimed in claim 4, is characterized in that, also carries Evolved Packet System EPS identification information corresponding to described the second terminal in described the first adjacent communication request to create;

Wherein, if set up the data transfer path via core net between described first terminal and described the second terminal, EPS identification information corresponding to described the second terminal is the EPS bearing identification of the carrying of having set up between described the second terminal and core net; If do not set up the path of any transfer of data between described first terminal and described the second terminal, EPS identification information corresponding to described the second terminal served as reasons as the EPS bearing identification of the 2nd MME distribution of described the second Terminal Service.

6. method as claimed in claim 4, is characterized in that, described the first base station obtains the descending address that the second base station is the described adjacent communication of the second terminal distribution, and using the descending address getting as upper row address corresponding to described first terminal, specifically comprises:

Described the first base station is obtained from the descending address as the described adjacent communication of described the second terminal distribution, and using the descending address getting as upper row address corresponding to described first terminal;

Described the first base station is obtained from the descending address of the described adjacent communication distributing as described first terminal, and using the descending address getting as upper row address corresponding to described the second terminal.

7. method as claimed in claim 6, it is characterized in that, the descending address that described first terminal is corresponding is the Tunnel End Point Identifier GTP-U F-TEID that the General Packet Radio System user face tunnel protocol of described the first base station assigns is complete or identifies for this locality of carrying out data retransmission at this inside of base station;

Descending address corresponding to described the second terminal is GTP-U F-TEID described the first base station assigns and that be different from described first terminal or local mark;

Wherein, described GTP-U F-TEID comprises GTP-U TEID and IP address.

8. method as claimed in claim 6, is characterized in that, described the first base station also comprises after determining respectively upper row address corresponding to upper row address corresponding to described first terminal and described the second terminal:

Described the first base station is notified respectively to be provided a MME of service and sets up for described the second terminal provides the path of the same adjacent communication that the 2nd MME self of service completed described first terminal and described the second terminal for described first terminal.

9. the method for claim 1, is characterized in that, if described the first base station and described the second base station are different base station;

Described the first base station, according to described the first adjacent communication request to create, after the described adjacent communication allocation of downlink address for described first terminal, also comprises:

Described the first base station notice has completed the distribution of the descending address of the described adjacent communication of described first terminal for described first terminal provides a MME self of service, and carries the descending address that described first terminal is corresponding.

10. the method as described in claim 1 or 9, is characterized in that, if described the first base station and described the second base station are different base station;

Described the first base station obtains the descending address that the second base station is the described adjacent communication of the second terminal distribution, and using the descending address getting as upper row address corresponding to described first terminal, specifically comprises:

Described the first base station is received as descending address corresponding to described the second terminal that described first terminal provides a MME of service to forward, and using the descending address receiving as upper row address corresponding to described first terminal;

Wherein, descending address corresponding to described the second terminal is to be distributed behind descending address for the same adjacent communication of described the second terminal by described the second base station, is transmitted to the 2nd MME that service is provided for described the second terminal.

11. methods as claimed in claim 10, is characterized in that, the descending address that described first terminal is corresponding is the GTP-U F-TEID of described the first base station assigns;

Descending address corresponding to described the second terminal is the GTP-U F-TEID of described the second base station assigns;

Wherein, described GTP-U F-TEID comprises GTP-U TEID and IP address.

12. methods as claimed in claim 10, is characterized in that, if a described MME is different MME from described the 2nd MME, descending address corresponding to described the second terminal is transmitted to a described MME by described the 2nd MME.

13. the method for claim 1, it is characterized in that, if described first terminal provides a MME of service and is same MME for described the second terminal provides the 2nd MME of service, described the first base station receives described the first adjacent communication request to create, specifically comprises:

Determining and need to set up adjacent communication for described first terminal and described the second terminal, and described the first base station and described the second base station are satisfied while setting up the condition of adjacent communication, a described MME sends described adjacent communication request to create to described the first base station.

14. the method for claim 1, is characterized in that, if a MME of described first terminal service is different MME from the 2nd MME for described the second Terminal Service, described the first base station receives described adjacent communication request to create, specifically comprises:

A described MME sends adjacent communication to described the 2nd MME and sets up request, described adjacent communication is set up request for asking described the 2nd MME to judge whether described the first base station and described the second base station meet the condition of setting up adjacent communication, and carries the identification information of described the first base station and the identification information of described the second terminal in described adjacent communication foundation request;

Described the 2nd MME is described the first base station and described the second base station while being same base station in definite judged result, sends described the first adjacent communication request to create to described the first base station.

15. methods as claimed in claim 14, is characterized in that, described adjacent communication is set up in request and carried EPS identification information and qos parameter corresponding to described first terminal that described first terminal is corresponding;

16. the method for claim 1, is characterized in that, if a MME of described first terminal service is different MME from the 2nd MME for described the second Terminal Service, described the first base station receives described adjacent communication request to create, specifically comprises:

Described the 2nd MME, in the time that definite described the first base station and described the second base station are same base station, returns to a described MME indication information that carries described judged result;

A described MME receives after described indication information, sends described the first adjacent communication request to create to described the first base station.

17. the method for claim 1, is characterized in that, if a MME of described first terminal service is different MME from the 2nd MME for described the second Terminal Service, described the first base station receives described adjacent communication request to create, specifically comprises:

Described the 2nd MME is different base station in definite described the first base station and described the second base station, and while existing interface to be connected between described the first base station and described the second base station, described the 2nd MME returns to a described MME indication information that carries described judged result;

18. methods as described in claim 14～17 any one, is characterized in that, described adjacent communication is set up the ID of trace route path that carries the adjacent communication between described first terminal and described the second terminal in request.

19. method as claimed in claim 17, is characterized in that, described the 2nd MME is different base station in definite described the first base station and described the second base station, and while existing interface to be connected between described the first base station and described the second base station, described method also comprises:

Described the 2nd MME sends for asking described the second base station to described the second base station be the described adjacent communication distribution of described the second terminal and the second adjacent communication request to create of descending address.

20. methods as claimed in claim 19, is characterized in that, carry the ID of trace route path of described adjacent communication in described the second adjacent communication request to create.

21. methods as claimed in claim 20, is characterized in that, also carry Evolved Packet System EPS identification information corresponding to described the second terminal in described the second adjacent communication request to create;

Wherein, if set up the data transfer path via core net between described first terminal and described the second terminal, EPS identification information corresponding to described the second terminal is the EPS bearing identification of the carrying of having set up between described the second terminal and core net; If do not set up the path of any transfer of data between described first terminal and described the second terminal, EPS identification information corresponding to described the second terminal served as reasons as the EPS bearing identification from as described the second terminal distribution.

22. methods as described in claim 14～17 any one, is characterized in that, the described condition of setting up adjacent communication comprises:

Described the first base station and described the second base station are same base station; Or,

Described the first base station is to exist interface to be connected between different base station and described the first base station and described the second base station with described the second base station.

23. methods as claimed in claim 8, is characterized in that, described method also comprises:

A described MME is receiving after the notice of described the first base station transmission, sends the first adjacent communication notice to described first terminal, and described the first adjacent communication notice is for notifying the adjacent communication path that described first terminal is corresponding to set up;

Described the 2nd MME is receiving after the notice of described the first base station transmission, sends the second adjacent communication notice to described the second terminal, and described the second adjacent communication notice is for notifying the adjacent communication path that described first terminal is corresponding to set up.

24. methods as claimed in claim 23, is characterized in that, described the first adjacent communication notice is carried the ID of trace route path of the adjacent communication between described first terminal and described the second terminal;

Described the second adjacent communication notice is carried the ID of trace route path of the adjacent communication between described first terminal and described the second terminal.

25. methods as claimed in claim 24, is characterized in that, described the first adjacent communication notice is carried the EPS bearing identification that described first terminal is corresponding;

Described the second adjacent communication notice is carried EPS bearing identification corresponding to described the second terminal;

Wherein, if set up the data transfer path via core net between described first terminal and described the second terminal, the EPS identification information that described first terminal is corresponding is the EPS bearing identification of the carrying of having set up between described first terminal and core net, and EPS identification information corresponding to described the second terminal is the EPS bearing identification of the carrying of having set up between described the second terminal and core net; If do not set up the path of any transfer of data between described first terminal and described the second terminal, the EPS identification information that described first terminal is corresponding is from the EPS bearing identification distributing as described first terminal, and EPS identification information corresponding to described the second terminal is from the EPS bearing identification as described the second terminal distribution.

26. methods as claimed in claim 9, is characterized in that, described method also comprises:

A described MME is receiving the notice of described the first base station transmission, and descending address corresponding described the second terminal is transmitted to behind described the first base station, send the first adjacent communication notice to described first terminal, described the first adjacent communication notice is for notifying the adjacent communication path that described first terminal is corresponding to set up.

27. methods as claimed in claim 26, is characterized in that, described the first adjacent communication notice is carried the ID of trace route path of the adjacent communication between described first terminal and described the second terminal.

28. methods as claimed in claim 27, is characterized in that, described the first adjacent communication notice is carried the EPS bearing identification that described first terminal is corresponding;

Wherein, if set up the data transfer path via core net between described first terminal and described the second terminal, the EPS identification information that described first terminal is corresponding is the EPS bearing identification of the carrying of having set up between described first terminal and core net; If do not set up the path of any transfer of data between described first terminal and described the second terminal, EPS identification information corresponding to described the second terminal is from the EPS bearing identification as described the second terminal distribution.

29. 1 kinds of base stations, is characterized in that, this base station comprises:

The first distribution module, for according to the first adjacent communication request to create receiving, is the adjacent communication allocation of downlink address of current resident first terminal;

30. base stations as claimed in claim 29, is characterized in that, described base station also comprises:

The first notification module, has completed the distribution of the descending address of the described adjacent communication of described first terminal for notifying as described first terminal provides a MME self of service.

31. base stations as claimed in claim 30, is characterized in that, if self and described the second base station are same base station, described base station also comprises:

Described the second distribution module, for according to described the first adjacent communication request to create, is the same adjacent communication allocation of downlink address of described the second terminal.

32. base stations as claimed in claim 31, is characterized in that, described base station also comprises:

The second acquisition module, for being obtained from the descending address of the described adjacent communication distributing as described first terminal, and using the descending address getting as upper row address corresponding to described the second terminal;

Described the first acquisition module specifically for:

Be obtained from the descending address as the described adjacent communication of described the second terminal distribution, and using the descending address getting as upper row address corresponding to described first terminal.

33. base stations as claimed in claim 32, is characterized in that, described base station also comprises:

The second notification module, has completed the distribution of the descending address of the described adjacent communication of described the second terminal for notifying as described the second terminal provides the 2nd MME self of service.

34. base stations as claimed in claim 30, is characterized in that, if self and described the second base station are different base station, described the first notification module also for:

Carry the descending address that described first terminal is corresponding.

35. base stations as claimed in claim 29, is characterized in that, if self and described the second base station are different base station, described the first acquisition module specifically for:

Be received as descending address corresponding to described the second terminal that described first terminal provides a MME of service to forward, and using the descending address receiving as upper row address corresponding to described first terminal;

Wherein, descending address corresponding to described the second terminal be by described the second base station distribute for the same adjacent communication of described the second terminal and descending address after, be transmitted to the 2nd MME that service is provided for described the second terminal.

36. 1 kinds of MME, is characterized in that, described MME comprises:

The first request to create sending module, for sending the first adjacent communication request to create to current the first resident base station of described first terminal, described the first adjacent communication request to create is the path that described first terminal is set up adjacent communication for asking described the first base station;

37. MME as claimed in claim 36, is characterized in that, if described the first base station and described the second current the second resident base station of terminal are different base station, and self is identical with the serving MME that is described the second terminal, and described MME also comprises:

The second request to create sending module, for sending the second adjacent communication request to create to described the second base station, described the second adjacent communication request to create is the path that described the second terminal is set up same adjacent communication for asking described the second base station;

The second announcement information sending module, after setting up in the path that is used to indicate the same adjacent communication that self has completed described first terminal and described the second terminal that receives described the second base station transmission, send the second adjacent communication notice to described the second terminal, described the second adjacent communication notice is for notifying adjacent communication path corresponding to described the second terminal to set up;

Described the first announcement information sending module specifically for: receive described first base station send be used to indicate the same adjacent communication that self has completed described first terminal and described the second terminal path set up after, to described first terminal send described first adjacent communication notify.

38. MME as claimed in claim 36, is characterized in that, if described the first base station and described the second current the second resident base station of terminal are different base station, described MME also comprises:

The first forwarding module, for being that the descending address of the adjacent communication that distributes of described first terminal is transmitted to described the second base station by described the first base station;

The second forwarding module, is transmitted to described the first base station for the descending address of the same adjacent communication that is described the second terminal distribution by described the second base station.

39. MME as described in claim 36 or 38, is characterized in that, if self is different from the serving MME that is described the second terminal, described MME also comprises:

Set up request sending module, send adjacent communication to the serving MME of described the second terminal and set up request, described adjacent communication is set up request for asking the serving MME of described the second terminal to judge whether described the first base station and described the second base station meet the condition of setting up adjacent communication, and carries the identification information of described the first base station and the identification information of described the second terminal in described adjacent communication foundation request;

Indication information receiver module, the indication information that carries judged result sending for receiving the serving MME of described the second terminal.

40. MME as claimed in claim 39, is characterized in that, described indication information receiver module also for:

If described judged result is that described the first base station and described the second base station are same base station, trigger described the first request to create sending module and described the second request to create sending module;

If described judged result is that described the first base station and described the second base station are different base station, trigger described the first request to create sending module.

41. MME as described in claim 36 or 38, is characterized in that, if self is different from the serving MME that is described the second terminal, described MME also comprises:

Determination module, sets up after request for the adjacent communication sending in the serving MME that receives described the second terminal, judges whether described the first base station and described the second base station meet the condition of setting up adjacent communication;

If judged result is that described the first base station and described the second base station are same base station, trigger described the first request to create sending module and described the second request to create sending module; Or send to the serving MME of described the second terminal the indication information that carries described judged result;

If judged result is that described the first base station and described the second base station are different base station, trigger described the first request to create sending module; And send to the serving MME of described the second terminal the indication information that carries described judged result.