CN105265007A

CN105265007A - Communication method, local gateway, base station, mme, and system

Info

Publication number: CN105265007A
Application number: CN201380002543.0A
Authority: CN
Inventors: 何宁; 朱雷; 熊春山; 彼得·麦肯
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-10-16
Filing date: 2013-10-16
Publication date: 2016-01-20
Also published as: WO2015054847A1

Abstract

Provided are a communication method, a local gateway (L-GW), a base station, an MME, and a system. The method comprises: an L-GW receives a delete session request; the L-GW, according to the delete session request, deletes an established bearer; the L-GW sends a delete session response, thereby establishing a connection between a UE and the L-GW. Since the UE is able to use different IP addresses to connect to different L-GWs and corresponding base stations, and initiate a session, single-point failure within a communication system is thus avoided, and communication security is further improved.

Description

Communication method, local gateway, base station, mme, and system

Communication means, local gateway, base station, MME and system

The present embodiments relate to the communication technology, more particularly to a kind of communication means, local gateway, base station, MME and system for technical field.

Background technology

Existing evolved packet system（Evolved Packet System, hereinafter referred to as EPS) framework is centralized mobile management, in EPS frameworks, when terminal device UE initially adheres to, UE sends attach request information to the base station eNB of place cell, then, and eNB selects mobility management entity (the Mobility Management Entity that UE can adhere to according to the attach request information, hereinafter referred to as Μ Μ Ε), and the gateway for selecting to adhere to by Μ Μ Ε（Serving Gateway, hereinafter referred to as S-GW) and packet data network gateway（Packet Data Network Gateway, hereinafter referred to as P-GW), also, P-GW is that the UE distributes IP address, i.e., EPS carryings are set up between UE and the P-GW, and be considered EPS default bearings.

During UE is from start to shutdown, the default bearing can provide service for UE always.It is moved in UE, is resident another base station, further, eNB can select another MME for UE, and the MME can select suitable S-GW for the UE after movement, but P-GW is to change, that is P-GW, as the anchor point of mobile management, is changeless.

If however, P-GW produces failure or safety problem, the problem of producing the Single Point of Faliure and one-point safety in communication system.The content of the invention

The embodiment of the present invention provides a kind of communication means, local gateway, base station, MME and system, the problem of to solve in existing communication system Single Point of Faliure and one-point safety caused by P-GW.

One side, the embodiment of the present invention provides a kind of communication means, including：

Local gateway L-GW, which is received, creates session request；

The L-GW sets up according to the establishment session request and carried；

The L-GW, which is sent, creates conversational response. In the first possible implementation of first aspect, the transmission is created after carrying response, in addition to：

The L-GW, which is received, deletes session request；

The L-GW deletes the carrying set up according to the deletion session request；

The L-GW, which is sent, deletes conversational response.

In second of possible implementation of first aspect, the local gateway L-GW, which is received, creates session request, including：

The L-GW receives the establishment session request that base station corresponding with the L-GW is sent, and the establishment session request is that the base station corresponding with the L-GW is sent after the initial context foundation request or 7 for receiving MME transmissions carry and set up request；

The L-GW sets up according to the establishment session request and carried, including：

The carrying for some specific user that the L-GW is set up between L-GW base stations corresponding with the L-GW；

Described send creates conversational response, including：

Sent to corresponding with the L-GW base station and create conversational response so that it is described with it is described

Radio resource control RRC connection reconfiguration is carried out between the corresponding base stations of L-GW and user equipment (UE).

According to second of possible implementation of first aspect, in the third possible implementation, the L-GW, which is received, deletes session request, including：

The L-GW receives the deletion session request that the base station corresponding with the L-GW is sent, and the deletion session request is that the base station corresponding with the L-GW is sent after the deactivation carrying request of mobility management entity MME transmissions is received；

The L-GW according to it is described deletion session request deleting bearing, including：

The L-GW deletes the carrying for some specific user between L-GW base stations corresponding with the L-GW；

The transmission deleting bearing response, including：

Sent to the base station corresponding with the L-GW and delete conversational response, so that the base station corresponding with the L-GW is sent to the MME deactivates carrying response.

In the 4th kind of possible implementation of first aspect, the local gateway L-GW, which is received, creates session request, including： The L-GW receives the establishment session request that MME is sent, and the establishment session request is that the MME is sent after the attach request or PDN connection requests of base station transmission corresponding with the L-GW is received；

Described send creates conversational response, including：

Sent to the MME and create conversational response, asked so that the MME carries to set up to the base station transmission initial context foundation request corresponding with the L-GW or 7.

According to the first possible implementation of first aspect, in the 5th kind of possible implementation, the L-GW, which is received, deletes session request, including：

The L-GW receives the deletion session request that MME is sent, and the deletion session request, which is the MME, to be received after the PDN that UE forwarded by corresponding base station goes connection request or attachment removal to ask or the MME determines to initiate to send after detachment process or HSS send cancel location message to MME；

Described send deletes conversational response, including：

Sent to the MME and delete conversational response, so that the MME deactivates carrying request to the base station transmission corresponding with the L-GW or sends the attachment removal received message that attachment removal received message or the MME receptions terminal are sent to the UE.

Second aspect, the embodiment of the present invention provides a kind of communication means, including：

The initial context foundation request or carrying that base station receives MME transmissions are set up and asked；Sent to L-GW corresponding with the base station and create session request；

Receive the establishment conversational response that the corresponding L-GW is sent；

RRC connections are carried out to reconfigure.

In the first possible implementation of second aspect, after the progress RRC connections are reconfigured, in addition to：

The deactivation carrying request that MME is sent is received, the deactivation carrying request carries LBI Mark；

Sent to L-GW corresponding with the base station and delete session request；

Receive the deletion conversational response that the corresponding L-GW is sent；

Sent to the MME and deactivate carrying response.

According to any one of the first possible implementation of second aspect and second aspect, in second of possible implementation, if base station receives the initial context foundation request that MME is sent, after the progress RRC connections are reconfigured, in addition to：

Initial context is sent to the MME and sets up response, and described 7, which carry foundation response, includes evolved packet system bearer quality of service；

If base station receives the carrying foundation request that MME is sent, after the progress RRC connections are reconfigured, in addition to：

7, which are sent, to the MME carries foundation response.

3rd aspect, the embodiment of the present invention provides a kind of communication means, including：

MME sends initial context to base station and sets up request, so that 7 between base station foundation L-GW corresponding with the base station | carry；

The MME receives the initial context foundation response that the base station is returned, and response is set up in the carrying includes evolved packet system bearer quality of service.

In the first possible implementation of the third aspect, the initial context for receiving the base station return is set up after response, in addition to：

Carrying is sent to the base station and sets up request, so that the base station sets up corresponding with the base station

7 between L-GW | carry；

Receive the carrying foundation response that the base station is returned.

According to any one of the first possible implementation of the third aspect and the third aspect, in second of possible implementation, the initial context for receiving the base station return is set up after response, in addition to：

Sent to the base station and deactivate carrying request, so that the carrying set up between L-GW corresponding with the base station is terminated in the base station, the deactivation carrying request carries LBI marks；

Receive the deactivation carrying response that the base station is returned.

4th aspect, the embodiment of the present invention provides a kind of communication means, including：

MME sends to L-GW and creates session request, so as to set up carrying between the L-GW； Receive the establishment conversational response that the L-G W are returned.

In the first possible implementation of fourth aspect, after the establishment conversational response for receiving the L-GW returns, in addition to：

Sent to the L-GW and delete session request, so as to terminate the carrying set up between the L-GW；

Receive the deletion conversational response that L-GW is sent.

According to any one of the first possible implementation of fourth aspect and fourth aspect, in second of possible implementation, the MME is sent before creating session request to L-GW, in addition to：

The MME receives the attach request that base station corresponding with the L-GW is sent, and the attach request carries distributed mobile management DMM marks；

According to the attach request, it is authenticated and location updating；

After the establishment conversational response for receiving the L-GW returns, in addition to：

Initial context is sent to the corresponding base station and sets up request, is reconfigured so that the corresponding base station carries out RRC.

It is described to be sent to the L-GW before deleting session request in the third possible implementation according to second of possible implementation of fourth aspect, in addition to：Receive the attachment removal request that UE is sent；After the deletion conversational response that the reception L-GW is sent, in addition to：Attachment received message is sent to the UE；

Or, it is described to be sent to the L-GW before deleting session request, in addition to：Attachment removal request is sent to UE；After the deletion conversational response that the reception L-GW is sent, in addition to：Receive the attachment received message that the UE is sent.

According to any one of the first possible implementation of fourth aspect and fourth aspect, in the 4th kind of possible implementation, the MME is sent before creating session request to L-GW, in addition to：

The MME receives the PDN connection requests that base station corresponding with the L-GW is sent；After the establishment conversational response for receiving the L-GW returns, in addition to：

Carrying is sent to the corresponding base station and sets up request, is reconfigured so that the corresponding base station carries out RRC.

According to the 4th of fourth aspect the kind of possible implementation, in the 5th kind of possible implementation In, it is described to be sent to the L-GW before deleting session request, in addition to：

The PDN that receiving terminal is sent by base station corresponding with the L-GW removes connection request；After the deletion conversational response that the reception L-GW is sent, in addition to：

Sent to the corresponding base station and deactivate carrying request, reconfigured so that the corresponding base station carries out RRC connections to the terminal.

5th aspect, the embodiment of the present invention provides a kind of local gateway L-GW, including：Receiving module, session request is created for receiving；

Processing module, is carried for being set up according to the establishment session request；

Sending module, conversational response is created for sending.

In the first possible implementation of the 5th aspect, the receiving module is additionally operable to after sending module sends the establishment conversational response, receives and delete session request；

The processing module, is additionally operable to after the receiving module receives the deletion session request, deletes the carrying set up；

The sending module, is additionally operable to after the carrying that the processing module deletion has been set up, sends and delete conversational response.

In second of possible implementation of the 5th aspect, the receiving module, the establishment session request sent specifically for base station corresponding with the L-GW, the establishment session request is that the base station corresponding with the L-GW is sent after the initial context for receiving MME transmissions sets up request or request is set up in carrying；

The processing module, specifically for setting up the carrying for some specific user between base station corresponding with the L-GW；

The sending module, creates conversational response, so as to carry out radio resource control RRC connection reconfiguration between the base station corresponding with the L-GW and user equipment (UE) specifically for being sent to the base station corresponding with the L-GW.

According to the first possible implementation of the 5th aspect, in the third possible implementation, the receiving module, the deletion session request sent specifically for base station corresponding with the L-GW, the deletion session request is that the base station corresponding with the L-GW is sent after the deactivation carrying request of mobility management entity MME transmissions is received；

The processing module, specifically for deleting the carrying for some specific user between base station corresponding with the L-GW； The sending module, sends specifically for base station corresponding with the L-GW and deletes conversational response, so that the base station corresponding with the L-GW is sent to the MME deactivates carrying response.

In the 4th kind of possible implementation of the 5th aspect, the receiving module, specifically for receiving the establishment session request that MME is sent, the establishment session request is that the MME is sent after the attach request or PDN connection requests of base station transmission corresponding with the L-GW is received；The processing module, specifically for setting up the carrying for some specific user between L-GW base stations corresponding with the L-GW；

The sending module, conversational response is created specifically for being sent to the MME, so that the MME sends initial context to the base station corresponding with the L-GW sets up request or 7 | and carry and set up request.

According to the first possible implementation of the 5th aspect, in the 5th kind of possible implementation, the receiving module, specifically for receiving the deletion session request that MME is sent, the deletion session request, which is the MME, to be received after the PDN that UE forwarded by corresponding base station goes connection request or attachment removal to ask or the MME determines to initiate to send after detachment process or HSS send cancel location message to MME；

The processing module, specifically for deleting the carrying for some specific user between L-GW base stations corresponding with the L-GW；

The sending module, conversational response is deleted specifically for being sent to the MME, so that the MME deactivates 7 to the base station transmission corresponding with the L-GW | carry request or send the attachment removal received message that attachment removal received message or the MME receptions terminal are sent to the UE.

6th aspect, the embodiment of the present invention provides a kind of base station, including：

Request is set up in receiving module, initial context foundation request or carrying for receiving MME transmissions, after sending module transmission creates session request, receives the establishment conversational response that the corresponding L-GW is sent；

The sending module, for sending the establishment session request to L-GW corresponding with the base station；

Processing module, after receiving the establishment conversational response that the corresponding L-GW is sent in the receiving module, carries out RRC connections and reconfigures.

In the first possible implementation of the 6th aspect, the receiving module is additionally operable to after processing module progress RRC connections are reconfigured, and receives the deactivation carrying request that MME is sent, The deactivation carrying request carries LBI marks；

The sending module, is additionally operable to after the receiving module receives the deactivation carrying request that MME is sent, is sent to L-GW corresponding with the base station and delete session request；And after the receiving module receives the deletion conversational response that the corresponding L-GW is sent, sent to the MME and deactivate mobile load response；

The receiving module, is additionally operable to after the sending module transmission deletion session request, receives the deletion conversational response that the corresponding L-GW is sent.

According to any one of the first possible implementation of the 6th aspect and the 6th aspect, in second of possible implementation, the sending module, it is additionally operable to after being reconfigured in processing module progress RRC connections, initial context, which is sent, to the MME sets up response, the load, which sets up response, includes evolved packet system bearer quality of service, and sends carrying foundation response to the MME.

7th aspect, the embodiment of the present invention provides a kind of MME, including：

Sending module, request is set up for sending initial context to base station, so that the carrying that the base station is set up between L-GW corresponding with the base station；

Receiving module, sets up response, response is set up in the carrying includes evolved packet system bearer quality of service for receiving the initial context that the base station is returned.

In the first possible implementation of the 7th aspect, the sending module, it is additionally operable to after the receiving module receives the initial context foundation response that the base station is returned, carrying is sent to the base station and sets up request, so that the carrying that the base station is set up between L-GW corresponding with the base station；The receiving module, is additionally operable to after the sending module sends the carrying foundation request, the carrying that the reception base station is returned, which is set up, to be responded.

According to any one of the first possible implementation of the 7th aspect and the 7th aspect, in second of possible implementation, the sending module, after receiving the initial context foundation response that the base station is returned in the receiving module, sent to the base station and deactivate carrying request, so that the carrying set up between L-GW corresponding with the base station is terminated in the base station, the deactivation carrying request carries LBI marks；

The receiving module, is additionally operable to after the sending module sends the deactivation carrying request, the deactivation that the reception base station is returned carries response.

8th aspect, the embodiment of the present invention provides a kind of MME, including： Sending module, session request is created for being sent to L-GW, so as to set up carrying between the L-GW；

Receiving module, for receiving the establishment conversational response that the L-GW is returned.

In the first possible implementation of eighth aspect, after the establishment conversational response for receiving the L-GW returns, in addition to：

The sending module, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, is sent to the L-GW and delete session request, so as to terminate the load set up between the L-GW；

The receiving module, is additionally operable to after the sending module sends the deletion session request, receives the deletion conversational response that L-GW is sent.

According to any one of the first possible implementation of eighth aspect and eighth aspect, in second of possible implementation, the MME also includes：Processing module,

The receiving module, is additionally operable to before the sending module sends the establishment session request, receives the attach request that base station corresponding with the L-GW is sent, and the attach request carries distributed mobile management DMM marks；

The processing module, for receiving the attach request according to the receiving module, is authenticated and location updating；

The sending module, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, and sending initial context to the corresponding base station sets up request, is reconfigured so that the corresponding base station carries out RRC.

According to second of possible implementation of eighth aspect, in the third possible implementation, the receiving module is additionally operable to before the sending module sends the deletion session request, receives the attachment removal request that UE is sent；

The sending module, is additionally operable to after the receiving module receives the deletion conversational response that L-GW is sent, and attachment received message is sent to the UE；

Or,

The processing module, is additionally operable to before the sending module sends to the L-GW and deletes session request, attachment removal request is sent to UE；

The receiving module, is additionally operable to after the deletion conversational response that L-GW is sent is received, and receives the attachment received message that the UE is sent. According to any one of the first possible implementation of eighth aspect and eighth aspect, in the 4th kind of possible implementation, the receiving module, it is additionally operable to before the sending module sends to L-GW and creates session request, receives the PDN connection requests that base station corresponding with the L-GW is sent；

The sending module, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, and sending carrying to the corresponding base station sets up request, is reconfigured so that the corresponding base station carries out RRC.

According to the 4th of eighth aspect the kind of possible implementation, in the 5th kind of possible implementation, the receiving module, it is additionally operable to before the sending module sends to the L-GW and deletes session request, the PDN that receiving terminal is sent by base station corresponding with the L-GW removes connection request；The processing module, is additionally operable to after the receiving module receives the deletion conversational response that L-GW is sent, and is sent to the corresponding base station and deactivates carrying request, is reconfigured so that the corresponding base station carries out RRC connections to the terminal.

9th aspect, the embodiment of the present invention provides a kind of communication system, including：The mobility management entity MME that base station that local gateway L-GW that any device embodiment of the present invention is provided, any device embodiment of the present invention are provided, any device embodiment of the present invention are provided.

In the first possible implementation of the 9th aspect, interface is provided between the L-GW MME corresponding with the L-GW.

In second of possible implementation of the 9th aspect, interface is not provided between L-GW MME corresponding with the L-GW.

Tenth aspect, the embodiment of the present invention provides a kind of local gateway L-GW, including：Emitter, receiver, memory and the processor being connected respectively with the emitter, the receiver and the memory, wherein, batch processing code is stored in the memory, and the processor is used to call the program code that stores in the memory, first aspect present invention, first aspect the first communication means for being provided to the 5th kind of possible implementation is performed.

Tenth aspect, the embodiment of the present invention provides a kind of base station, including：Emitter, receiver, memory and the processor being connected respectively with the emitter, the receiver and the memory, wherein, batch processing code is stored in the memory, and the processor is used to call the program code that stores in the memory, second aspect of the present invention, first aspect the first communication means for being provided to second of possible implementation is performed. Tenth on one side, and the embodiment of the present invention provides a kind of mobility management entity MME, including：Emitter, receiver, memory and the processor being connected respectively with the emitter, the receiver and the memory, wherein, batch processing code is stored in the memory, and the processor is used to call the program code that stores in the memory, perform third aspect present invention, the third aspect the first to second, fourth aspect, fourth aspect the first communication means for being provided to the 5th kind of possible implementation.

12nd aspect, the embodiment of the present invention provides a kind of communication system, it is characterised in that including：Local gateway L-GW as claimed in claim 40, base station as claimed in claim 41 and mobility management entity MME as claimed in claim 42.

The communication means that the present embodiment is provided, received by L-GW and create session request, and set up default bearing according to session request is created, and L-GW sends and creates conversational response, so as to the connection set up between UE and L-GW, and because UE can use different IP address to be attached from different L-GW and corresponding base station and initiate session, and then the Single Point of Faliure in communication system is avoided, and further increase the security of communication.

Brief description of the drawings is in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the schematic flow sheet of one embodiment of the invention communication means；

Fig. 2 is the schematic flow sheet of further embodiment of this invention communication means；

Fig. 3 is the schematic flow sheet of yet another embodiment of the invention communication means；

Fig. 4 is the schematic flow sheet of yet another embodiment of the invention communication means；

Fig. 5 is the schematic flow sheet of yet another embodiment of the invention communication means；

Fig. 6 is the schematic flow sheet of yet another embodiment of the invention communication means；

Fig. 7 is the schematic flow sheet of yet another embodiment of the invention communication means；

Fig. 8 is the schematic flow sheet of yet another embodiment of the invention communication means；

Fig. 9 is the schematic flow sheet of yet another embodiment of the invention communication means；

Figure 10 is the schematic flow sheet of yet another embodiment of the invention communication means； Figure 11 is the schematic flow sheet of yet another embodiment of the invention communication means；

Figure 12 is the schematic flow sheet of yet another embodiment of the invention communication means；

Figure 13 is the schematic flow sheet of yet another embodiment of the invention communication means；

Figure 14 is the schematic flow sheet of yet another embodiment of the invention communication means；

Figure 15 is the schematic flow sheet of yet another embodiment of the invention communication means；

Figure 16 is the schematic flow sheet of yet another embodiment of the invention communication means；

Figure 17 is one embodiment of the invention L-GW structural representation；

Figure 18 is the structural representation of one embodiment of the invention base station；

Figure 19 is one embodiment of the invention MME structural representation；

Figure 20 is further embodiment of this invention MME structural representation；

Figure 21 is further embodiment of this invention L-GW structural representation；

Figure 22 is the structural representation of further embodiment of this invention base station；

Figure 23 is yet another embodiment of the invention MME structural representation.The embodiment embodiment of the present invention is applied in distributed mobile management（Distributed Mobility Management, hereinafter referred to as DMM) in network, or in DMM networks and network network coexisted EPS, wherein, DMM networks in the embodiment of the present invention are to have done further improvement on the basis of existing EPS networks, specific implementation at least includes two kinds, and the first implementation is that each base station of existing EPS networks sets a local gateway corresponding with the base station（Local Gateway, hereinafter referred to as L-GW), second of implementation, be existing EPS networks multiple base stations set one with the plurality of base station while corresponding L-GW.

Whether which kind of above-mentioned implementation, DMM networks can also be divided into two kinds of application scenarios, the first application scenarios, interface is not provided between MME and L-GW, the process such as foundation, modification for being carried between UE and network side equipment is all MME by being carried out between the L-GW corresponding with the base station of base station；Second of application scenarios, interface is provided between MME and L-GW, this mode is similar with the processing mode in EPS networks, zoariums of the L-GW equivalent to S-GW and P-GW, and L-GW function is similar with effect with P-GW function with effect with the S-GW in EPS networks.It will specifically be described in detail below.

DMM networks or DMM networks are carried out in detail with network network coexisted EPS below It is bright.

Fig. 1 is the schematic flow sheet of one embodiment of the invention communication means；As shown in figure 1, the communication means, specifically includes following steps：

Step 101, local gateway L-GW, which are received, creates session request.

Specifically, L-GW can receive establishment session request under at least two scenes, the first scene, after UE starts, when needing to set up attachment with network side equipment, second of scene, after UE and network side equipment set up attachment, UE needs to set up a new Packet Data Network with network side equipment（Packet Data Network, hereinafter referred to as PDN) connection when.

Further, whether the present embodiment can also be provided with interface according between MME and L-GW, the L-GW application scenarios for receiving establishment session request are divided into two kinds, the first application scenarios, when interface is not present between MME and L-GW, L-GW receives the establishment session request that base station corresponding with L-GW is sent, and the establishment session request is that the base station corresponding with L-GW is sent after the initial context for receiving MME transmissions sets up request；Second of application scenarios, when there is interface between MME and L-GW, L-GW receives the establishment session request that MME is sent, and the establishment session request is that MME is sent after the attach request or PDN connection requests of base station transmission corresponding with L-GW is received.

Step 102, L-GW set up default bearing according to session request is created；

In the present embodiment, can be according to interface whether be provided between MME and L-GW, will

L-GW is divided into two kinds of application scenarios according to creating session request and set up default bearing, the first application scenarios, and when interface is not present between MME and L-GW, the establishment session request that L-GW is sent according to base station sets up default bearing with the base station；Second of application scenarios, when there is interface between MME and L-GW, the establishment session request that L-GW is sent according to MME sets up default bearing with the MME.

Step 103, L-GW, which are sent, creates conversational response.

L-GW sends establishment conversational response and is divided into two kinds of application scenarios, the first application scenarios, when interface is not present between MME and L-GW, the base station that L-GW creates session request to sending, which is sent, creates conversational response, so as to carry out wireless heterogeneous networks between base station and user equipment (UE)（Radio Resource Control, hereinafter referred to as RRC) connection reconfigure, i.e., reconfigured between the base station and UE space interface signaling connect；Second of application scenarios, when there is interface between MME and L-GW, L-GW is to MME Send and create conversational response, asked so that MME sends initial context foundation to the base station for sending attach request.

Fig. 2 is the schematic flow sheet of further embodiment of this invention communication means；As shown in Fig. 2 the communication means, specifically includes following steps：

After embodiment illustrated in fig. 1 step 103, L-GW send establishment carrying response, it can also include：

Step 201, L-GW, which are received, deletes session request；

Specifically, according to interface whether is provided between MME and L-GW, the present embodiment can be applied under at least two scenes：

First scene, interface is not provided between MME and L-GW, under the scene, the information sent according to UE, the present embodiment can further be divided into three kinds of implementations, the first implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE can send PDN to MME by base station and remove connection request, and MME is sent to the base station deactivates carrying request, deactivation carrying request carries LBI marks, the i.e. default identification of PDN connections.Then, L-GW receives the deletion session request that base station corresponding with L-GW is sent, wherein, the deletion session request connects the PDN connection that UE instructions are gone between the L-GW base stations corresponding with the L-GW of connection to go；Second of implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE can send attachment removal to MME by base station and ask, or, MME can send attachment removal to UE by base station and ask, or, HSS sends cancel location message to MME, whether the attachment removal that UE or MME or HSS is initiated, MME can send the deactivation carrying request for every PDN connection to the base station, then, L-GW receives the deletion session request for every PDN connection that base station corresponding with L-GW is sent, wherein, the deletion session request connects a PDN connection between L-GW base stations corresponding with the L-GW to go；The third implementation, if UE and network side equipment only set up attachment, UE can send attachment removal to MME by base station and ask, or, MME to UE can send attachment removal request by base station, whether UE or The attachment removal request that MME is initiated, MME can send to the base station and deactivate carrying request, then, and L-GW receives the deleting bearing request that base station corresponding with L-GW is sent, wherein, deleting bearing request is used to the connection between attachment removal L-GW base stations corresponding with the L-GW.

Second scene, interface is provided between MME and L-GW, under the scene, the information sent according to UE, the present embodiment can further be divided into two kinds of implementations, the first implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE can send PDN to MME by base station and remove connection request, MME sends to L-GW corresponding with the base station and deletes session request, wherein, the deletion session request connects the PDN connection that the UE indicates to go to be connected between L-GW and MME to go；Second of implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE can send attachment removal to MME by base station and ask, or, MME can send attachment removal to UE by base station and ask, or, HSS sends cancel location message to MME, whether the attachment removal that UE or MME or HSS is initiated, MME can send the deletion session request for every PDN connection to the corresponding L-GW in the base station, wherein, the deletion session request is to go to be connected to a PDN connection between L-GW and MME；The third implementation, if UE only sets up attachment with network side equipment, UE can send attachment removal to MME by base station and ask, or, MME can send attachment removal to UE by base station and ask, and the attachment removal request that whether UE or MME is initiated, MME can send deleting bearing request to L-GW corresponding with the base station, wherein, deleting bearing request is to the connection between attachment removal L-GW and MME.

Step 202, L-GW delete the carrying set up according to session request is deleted；

First scene, interface is not provided between MME and L-GW, under the scene, the information sent according to UE, the present embodiment can further be divided into two kinds of implementations, the first implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE can send PDN to MME by base station and remove connection request, and after L-GW receives the deletion session request that base station corresponding with L-GW is sent, delete the PDN connection that the UE between L-GW base stations corresponding with the L-GW is indicated；Second of implementation, is connected if UE has been set up a plurality of PDN with network side equipment, and UE can send attachment removal to MME by base station and ask, or, MME can send attachment removal to UE by base station and ask, or, HSS sends cancel location message to MME Whether the attachment removal that UE or MME or HSS is initiated, after L-GW often receives the deletion session request for every PDN connection that base station corresponding with L-GW is sent, a PDN connection between L-GW base stations corresponding with the L-GW is deleted.

Second scene, interface is provided between MME and L-GW, under the scene, the information sent according to UE, the present embodiment can further be divided into two kinds of implementations, the first implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE sends PDN to MME by base station and removes connection request, after L-GW receives the deletion session request that MME is sent, deletes the PDN connection that the UE is indicated between L-GW and MME；Second of implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE can send attachment removal to MME by base station and ask, or, MME can send attachment removal to UE by base station and ask, or, HSS sends cancel location message to MME, whether the attachment removal that UE or MME or HSS is initiated, after L-GW one for every PDN connection for often receiving MME transmissions deletes session request, a PDN connection between L-GW and MME is deleted.

Step 203, L-GW, which are sent, deletes conversational response.

Specifically, when interface is not present between MME and L-GW, L-GW sends to base station corresponding with L-GW and deletes conversational response, so that base station corresponding with L-GW is sent to MME deactivates carrying response.When there is interface between MME and L-GW, L-GW sends to MME and deletes conversational response, deactivates carrying request so that MME is sent to base station corresponding with L-GW or sends the attachment removal received message that attachment removal received message or MME receiving terminals are sent to terminal.

Fig. 3 is the schematic flow sheet of yet another embodiment of the invention communication means；As shown in Figure 3, the present embodiment is suitable for DMM networks, or in DMM networks and network network coexisted EPS, no matter the present embodiment is applied in which kind of above-mentioned network, two kinds of implementations can at least be included, the first implementation, by each base station of existing EPS networks local gateway corresponding with one（Local Gateway, hereinafter referred to as L-GW) it is connected, multiple base stations of existing EPS networks L-GW corresponding with one is connected by second of implementation.Whether which kind of above-mentioned implementation, when being not provided with interface between MME and L-GW, the communication means specifically may comprise steps of：

The initial context foundation request or carrying that step 301, base station receive MME transmissions are set up and asked.

The present embodiment base station receives the request that MME sends and is divided into two kinds of situations, the first scene, after UE starts, and UE needs to set up with network side equipment when adhering to, and base station can receive MME transmissions Initial context set up request；Second of scene, sets up after attachment in UE with network side equipment, and UE needs to set up a new Packet Data Network with network side equipment（Packet Data Network, hereinafter referred to as PDN) connection when, base station can receive MME transmission carrying set up request.

Step 302, base station are sent to L-GW corresponding with the base station creates session request.

In the present embodiment, no matter what base station received that MME sends is which kind of above-mentioned request, the base station sends to L-GW corresponding with the base station and creates session request, to set up 7 between the L-GW corresponding with the base station of base station | carry.

Base station Tunnel End Point Identifier and the address for leading to L-GW corresponding with the base station are distributed in base station, and, base station sends to L-GW corresponding with the base station and creates session request, after the establishment session request that L-GW corresponding with the base station receives base station transmission, L-GW distribution L-GW Tunnel End Point Identifiers corresponding with the base station and address, so as to complete the foundation in the tunnel of the carrying between the L-GW corresponding with the base station of base station, and the carrying can be identified with Tunnel End Point Identifier and address, use TEID (Tunnel Endpoint Identifier, Tunnel End Point Identifier) and address identify a carrying.

Step 303, base station receive the establishment conversational response that corresponding L-GW is sent.

The present embodiment base station receives the establishment conversational response that corresponding L-GW is sent, and is reconfigured so as to carry out RRC connections between base station corresponding with L-GW and user equipment (UE).

Step 304, base station and UE carry out RRC connections and reconfigured, i.e., reconfiguring for space interface signaling connection is carried out between base station and UE.

The communication means that the present embodiment is provided, the initial context for receiving MME transmissions by base station sets up request or carrying is set up after asking, base station sends to L-GW corresponding with the base station and creates session request, and, base station receives the establishment conversational response that corresponding L-GW is sent, then, base station is connected with UE progress RRC and reconfigured, so as to the connection set up between UE and L-GW, and because UE can use different IP address to be attached from different L-GW and corresponding base station and initiate session, and then avoid the Single Point of Faliure in communication system, and further increase the security of communication.

After step 304, base station and UE progress RRC connections in the present embodiment are reconfigured, it can also include：

Step 305, base station send initial context to MME and set up response.

Carrying is set up between base station and corresponding L-GW, and RRC is set up in base station and UE After connection is reconfigured, base station can send initial context to MME and set up response.Step 306, base station receive the deactivation carrying request that MME is sent.

In the present embodiment, base station can receive the deactivation carrying request of MME transmissions under at least two scenes, the first scene, UE has been set up at least one PDN with network side equipment and is connected, and gone in UE to MME transmissions PDN under the scene of connection request, base station receives the deactivation carrying request that MME is sent, wherein, deactivation carrying request is to deactivate a PDN connection between the L-GW corresponding with the base station of the base station.Second of scene, UE has been set up at least one PDN with network side equipment and is connected, and under the scene that UE sends attachment removal request to MME, base station receives the deactivation carrying request for every PDN connection that MME is sent, wherein, deactivation carrying request is to deactivate a PDN connection between the L-GW corresponding with the base station of the base station.

Step 307, base station are sent to L-GW corresponding with the base station deletes session request.

Specifically, base station can send to L-GW corresponding with the base station under at least three kinds scenes and delete session request, the first scene, UE has been set up at least one PDN with network side equipment and is connected, and gone in UE to MME transmissions PDN under the scene of connection request, base station can send the deletion session request for every PDN connection to L-GW corresponding with the base station, wherein, a PDN connection between the deletion session request is to delete base station L-GW corresponding with the base station.Second of scene, UE has been set up at least one PDN with network side equipment and is connected, and under the scene that UE sends attachment removal request to MME, base station can send the deletion session request for every PDN connection to L-GW corresponding with the base station, wherein, a PDN connection between the deletion session request is to delete base station L-GW corresponding with the base station.

Step 308, base station receive the deletion conversational response that corresponding L-GW is sent；

No matter the present embodiment is applied under which kind of above-mentioned scene, L-GW corresponding with base station is deleted after PDN connections, and base station can receive the deletion conversational response that corresponding L-GW is sent.

Step 309, base station are sent to MME deactivates carrying response.

After base station L-GW corresponding with the base station deletes PDN connections, base station can send to MME and deactivate carrying response.

Further, if receiving the initial context foundation request that MME is sent in step 301, base station, after progress RRC connections are reconfigured, it can also specifically include：

Base station sends initial context to MME and sets up response； Further, if receiving the carrying foundation request that MME is sent in step 301, base station, after the progress RRC connections are reconfigured, it can also specifically include：

Base station sends 7 to MME and carries foundation response.

It should be noted that being provided with interface between MME and L-GW, the function in this mode base station is similar with processing mode with the function of base station in EPS networks with processing mode, no longer illustrates in the present embodiment.

Fig. 4 is the schematic flow sheet of yet another embodiment of the invention communication means；As shown in Figure 4, the present embodiment is suitable for DMM networks, or in DMM networks and network network coexisted EPS, wherein, at least include two kinds of implementations, each base station of existing EPS networks L-GW corresponding with one is connected by the first implementation, second of implementation, multiple base stations of existing EPS networks L-GW corresponding with one is connected.Whether which kind of above-mentioned implementation, when being not provided with interface between MME and L-GW, the communication means specifically may comprise steps of：

Step 401, MME send initial context to base station and set up request, so that the carrying that the base station is set up between L-GW corresponding with the base station.

In the present embodiment, UE is initially in the case of attachment, UE can by the base station to MME send attach request, then, MME sends initial context to the base station and sets up request, so that the PDN connections that the base station is set up between L-GW corresponding with the base station, wherein, attachment, which is carried, in initial context foundation request receives information, and added with DMM marks (DMM-enabled) in attachment receives information, the DMM, which is designated MME, allows UE to be linked into the network with DMM characteristics.

The initial context that step 402, MME receive base station return sets up response.

Specifically, in the base station, L-GW corresponding with the base station sets up carrying, and UE and the base station are carried out after RRC is connected and reconfigures, the initial context that MME receives base station return sets up response, wherein, the initial context sets up response and carries the information for having set up carrying, for example, PDN types（PDN Type), PDN addresses（PDN Address), EPS carrying default identifications（EPS Bearer Identity), EPS carries the good business quality of the moon（EPS Bearer QoS), APN-AMBR (Access Point Name-Aggregate Maximum Bit Rate, APN-polymerization maximum rate）Deng.MME stores the information of those carryings, to base station in future in service request（Service Request) reconstruction in flow to UE contexts.

The communication means that the present embodiment is provided, sending initial context foundation to base station by MME please Ask, so that base station triggers L-GW corresponding with the base station sets up carrying, then, the initial context that Μ Μ Ε receive base station return sets up response, so as to the connection set up between UE and L-GW, and because UE can use different IP address to be attached from different L-GW and corresponding base station and initiate session, and then the Single Point of Faliure in communication system is avoided, and further increase the security of communication.

On the basis of above-described embodiment, after UE attachment networks, after step 402, i.e. UE is had built up after attachment, can also be included：

Step 403, MME send to base station and create session request, so that the carrying that base station is set up between L-GW corresponding with base station；

In the present embodiment, UE is sent to MME after PDN connection requests, MME sends to base station and creates session request, so that base station triggers L-GW corresponding with base station sets up carrying, i.e. so that base station triggers L-GW corresponding with the base station sets up carrying, wherein, PDN connections, which are carried, in carrying foundation request receives information, and added with DMM marks (DMM-enabled) in PDN connections receive information, the DMM, which is designated MME, allows UE to be linked into the network with DMM characteristics.

Step 404, MME receive the establishment conversational response that base station is returned.

Specifically, in the base station, L-GW corresponding with the base station sets up carrying, and UE is connected with base station progress RRC after reconfiguring, and MME receives the establishment conversational response of base station return, wherein, the establishment conversational response carries the information for having set up carrying, for example, PDN Type, PDN Address, EPS Bearer Identity, EPS Bearer QoS, APN-AMBR etc..

On the basis of above-described embodiment, after step 402, i.e. UE is had built up after attachment, can also be included：

Step 405, MME are sent to base station deactivates carrying request, so that base station triggers L-GW corresponding with base station terminates the load set up.

Specifically, the present embodiment can be divided into three kinds of implementations, the first implementation, it is connected if UE has been set up a plurality of PDN with network side equipment, UE can send PDN to MME by base station and remove connection request, MME is sent to the base station deactivates carrying request, wherein, deactivation carrying request connects the PDN connection that the UE indicates to go between the L-GW corresponding with the base station of connection base station to go, that is, terminates one between the L-GW corresponding with the base station of the base station carrying set up；Second of implementation, is connected if UE has been set up a plurality of PDN with network side equipment, UE can send attachment removal to MME by base station and ask, or, MME can send attachment removal to UE by base station and ask, whether the attachment removal request that UE or MME is initiated, MME can send to the base station and deactivate carrying request, wherein, deactivation carrying request connects all a plurality of PDN connections having built up between the L-GW corresponding with the base station of base station to go, that is, terminates all carryings being had built up between the L-GW corresponding with the base station of base station；The third implementation, if UE only sets up attachment with network side equipment, UE can send attachment removal to MME by base station and ask, or, MME can send attachment removal to UE by base station and ask, and the attachment removal request that whether UE or MME is initiated, MME can send to the base station and deactivate carrying request, wherein, deactivation carrying request is to delete the carrying between L-GW base stations corresponding with the L-GW.

Step 406, MME receive the deactivation carrying response that base station is returned.

Fig. 5 is the schematic flow sheet of yet another embodiment of the invention communication means；As shown in figure 5, the present embodiment is suitable for DMM networks, or in DMM networks and network network coexisted EPS, wherein, at least include two kinds of implementations, the first implementation, by each base station of existing EPS networks local gateway corresponding with one（Local Gateway, hereinafter referred to as L-GW) it is connected, multiple base stations of existing EPS networks L-GW corresponding with one is connected by second of implementation.Whether which kind of above-mentioned implementation, when setting interface between MME and L-GW, the communication means specifically may comprise steps of：

Step 501, MME send to L-GW and create session request, to set up the carrying between the L-GW.

In the present embodiment, UE is initially in the case of attachment, UE can by the base station to MME send attach request, the attach request carries DMM-enabled and L-GW addresses, MME sends to L-GW according to attach request and creates session request, so as to set up carrying between L-GW and MME.

Step 502, MME receive the establishment conversational response of L-GW returns.

Specifically, after the MME and L-GW sets up carrying, MME receives the establishment conversational response of L-GW returns.

The communication means that the present embodiment is provided, sent by MME to L-GW and create session request, carried so as to be set up between the L-GW and the MME, and MME receives the establishment conversational response of L-GW returns, the connection that can be set up between UE and L-GW, and because UE can use different IP address to be attached from different L-GW and corresponding base station and initiate session, and then The Single Point of Faliure in communication system is avoided, and further increases the security of communication.

On the basis of above-described embodiment, after step 502, MME receive the establishment conversational response that L-GW is returned, it can also include：

Step 503, MME send to L-GW and delete session request, so as to terminate the load set up between L-GW；

Step 504, MME receive the deletion conversational response that L-GW is sent.

Further, before step 501, MME send to L-GW and create session request, it can also include：

Step 505, MME receive the attach request that base station corresponding with L-GW is sent.

The attach request carries distributed mobile management DMM marks；

Step 506, MME are authenticated and location updating according to attach request；

Accordingly, after the establishment conversational response that step 502, MME can receive L-GW returns, it can also include：

MME sends initial context to corresponding base station and sets up request, is reconfigured so that corresponding base station carries out RRC.

Further, before step 503, MME send to L-GW and delete session request, in addition to：

MME receives the attachment removal request that UE is sent；

After step 504, MME receive the deletion conversational response that L-GW is sent, it can also include：

MME sends attachment received message to UE；

Or,

Before step 503, MME send to L-GW and delete session request, it can also include：MME sends attachment removal request to UE；

Receive the attachment received message that UE is sent.

MME receives the PDN connection requests that base station corresponding with L-GW is sent； Accordingly, after the establishment conversational response that step 502, MME can receive L-GW returns, it can also include：

MME sends carrying to corresponding base station and sets up request, is reconfigured so that corresponding base station carries out RRC.

Further, before step 503, MME send to L-GW and delete session request, it can also include：

The PDN that MME receiving terminals are sent by base station corresponding with L-GW removes connection request；After step 504, MME receive the deletion conversational response that L-GW is sent, it can also include：

MME is sent to corresponding base station deactivates carrying request, is reconfigured so that corresponding base station carries out RRC connections to terminal.

Fig. 6 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in Fig. 6, in DMM networks or DMM networks and network network coexisted EPS, and it is not provided between the MME and L-GW in DMM networks under the scene of interface, the communication means specifically may comprise steps of：

Step 601, UE initiate to carry UE marks and Packet Data Network's type in attach request, the attach request to base station（PDN Type) etc. information.

Step 602, base station forward attach request to MME.

Specifically, base station is had the ability in the case of setting up carrying with the process that L-GW is interacted by inside, base station prioritizing selection DMM networks, and the increase DMM-enabled marks in attach request.

For example, in the case where EPS networks and DMM are network coexisted, after MME receives the attach request containing DMM-enabled marks, the APN and/or network policy information carried in the attach request that can be sent according to UE, determine whether to be linked into DMM networks, enter step 603 if allowing, if being linked into if not allowing in EPS networks, and carry out the attachment flow of existing EPS networks.In the case of only DMM networks, then base station is linked into DMM networks.

Step 603, the UE to initiation attach request are authenticated.

In the present embodiment, MME, HSS (Home Subscriber Server, home subscriber server）UE is authenticated etc. equipment, if authenticating successfully, into step 604, if failed authentication, refuses UE attach request.

Step 604, MME send location update message to HSS, to ask UE's to HSS Subscription data information.

In the present embodiment, the attach request initiated due to UE, it is to set up to be connected first with MME, therefore, there is no UE subscription data information in MME, MME needs to send location update message to ask UE subscription data information to HSS, wherein, the information such as MME Identity, IMSI, ME Identity are carried in the location update message.

Step 605, MME send the subscription data information that UE is carried in location updating response message, the location updating response message to HSS（Subscription data) and IMSI information.

Step 606, MME send initial context to base station and set up request（Initial Context Setup Request), to set up the carrying between base station and L-GW.

Specifically, the base station is sends the base station of attach request, and the initial contexts that are sent to the base station of Μ Μ Ε are set up and attachment received message is at least carried in request, and carries DMM-enabled in attachment received message and identify, further, the initial context, which is set up in request, can also carry IMSI, MSISDN, APN, Default EPS Bearer QoS, PDN Type, APN-AMBR, EPS Bearer Identity etc..

Step 607, base station are sent to L-GW creates session request.

Base station is received after the initial context foundation request that MME is sent, the base station TEID (Tunnel Endpoint Identifier, Tunnel End Point Identifier) and base station address of the user plane carried between distribution and L-GW.

Step 608, L-GW initiate IP-CAN (IP-Connectivity Access Network, IP connected references network) session establishment flow to PCRF.

In the present embodiment, if deploying dynamic PCC (Policy and Charging Control, plan lattice and charging control), shellfish ' J L-GW are to PCRF (Policy and Charging Rules Function, strategy and charging rule functions) IP-CAN session establishment flows are initiated, and obtain UE PCC policy informations.

Step 609, L-GW send to base station and create conversational response, wherein, the L-GW TEID and L-GW addresses of the user plane of the carrying are carried in the establishment conversational response（ L-GW address ) .

It should be noted that, for each UE, at least one PDN connection can be set up between L-GW and base station, the PDN connections include a default bearing, wherein, one user tunnel of carrying correspondence, and the user tunnel can use a pair of user plane tunnel endpoints marks, i.e. base Stand Tunnel End Point Identifier and L-GW Tunnel End Point Identifiers.

Step 610, base station send RRC connection reconfiguration informations to UE.

Step 611, UE are reconfigured to base station transmission RRC connections and are completed information.

The present embodiment UE sends RRC connections to base station and reconfigures and complete information, so as to complete reconfiguring for space interface signaling connection between UE and base station.

Step 612, base station send initial context to MME and set up response.

Specifically, base station sends initial context to MME sets up response, the initial context sets up the carrying information for responding and carrying between base station and L-GW, and the carrying information carries PDN Type,

PDN Address, EPS Bearer Identity, EPS Bearer QoS, APN-AMBR etc..So as to which MME stores the carrying information between base station and L-GW, for reconstruction of the base station in Service Request flows to UE contexts.

Step 613, UE send direct-sending message to base station, and the direct-sending message carries attachment completion message.Completion message is adhered in step 614, base station to MME forwardings.

Adhere in the present embodiment base station to MME forwardings after completion message, UE can carry out transmitting uplink data, and downlink data transmission between L-GW.

Step 615, MME send to HSS and notify solicited message.

Specifically, the notice solicited message carries APN and L-GW marks pair, to the mobile management to user equipment, such as after user equipment movement, the mobile management for causing user equipment to be produced when accessing non-3 GPP network.

Step 616, HSS send push-notification-answer information to MME.

Fig. 7 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in Fig. 7, in the case of there is interface between DMM networks or DMM networks and the MME and L-GW in network network coexisted EPS, and in DMM networks.

Step 701, UE initiate to carry UE marks and Packet Data Network's type in attach request, the attach request to base station（PDN Type) etc. information.

Step 702, base station forward attach request to MME.

Specifically, when base station is provided with corresponding L-GW, but in the case of carrying can not be set up by the process of inside interaction, base station prioritizing selection DMM networks, and increase in attach request DMM-enabled marks and L-GW addresses corresponding with base station.

For example, in the case where EPS networks and DMM are network coexisted, when MME is received After the attach request contained, the APN and/or network policy information carried in the attach request that can be sent according to UE, determine whether to be linked into DMM networks, enter step 703 if allowing, if being linked into if not allowing in DMM networks, and carry out the attachment flow of existing EPS networks.In the case of only DMM networks, then base station is linked into DMM networks.

Step 703, the UE to initiation attach request are authenticated.

In the present embodiment, MME, HSS (Home Subscriber Server, home subscriber server）UE is authenticated etc. equipment, if authenticating successfully, into step 704, if failed authentication, refuses UE attach request.

Step 704, MME send location update message to HSS, the subscription data information to ask UE to HSS.

Step 705, HSS send the subscription data information and IMSI information that UE is carried in location updating response message, the location updating response message to MME.

Step 706, MME send to L-GW and create session request.

In the present embodiment, the L-GW addresses carried in the attach request that MME is sent according to base station, send to corresponding L-GW and create session request.

Step 707, L-GW initiate IP-CAN session establishment flows to PCRF.

In the present embodiment, if deploying dynamic PCC, L-GW initiates IP-CAN session establishment flows to PCRF, and obtains UE PCC policy informations.

Step 708, L-GW send to MME and create conversational response, wherein, the user plane L-GW TEID and L-GW addresses (L-GW address) of the carrying are carried in the establishment conversational response.

Step 709, MME send initial context to corresponding base station and set up request, to set up the carrying between base station and L-GW.

Specifically, the base station is the base station for sending attach request, and at least carry attachment received message in the establishment session request that MME is sent to the base station, and DMM-enabled marks are carried in attachment received message, further, can also be carried in the establishment session request L-GW with The information carried between MME.

Step 710, base station send RRC connection reconfiguration informations to UE.

Step 711, UE are reconfigured to base station transmission RRC connections and are completed information.

Step 712, base station send initial context to MME and set up response.

Specifically, base station sends initial context to MME sets up response, the initial context sets up the base station TEID and base station address that response carries user plane.

Step 713, UE send direct-sending message to base station, and the direct-sending message carries attachment completion message.Step 714, base station forward the attachment completion message to MME.

Adhere in the present embodiment base station to MME forwardings after completion message, UE can carry out transmitting uplink data between L-GW.

Step 715, MME send modification carrying request to L-GW, and base station TEID and base station address are carried in modification carrying request.

Step 716, L-GW send modification carrying response, the response for carrying request to modification to MME.

After step 716, UE can carry out downlink data transmission between L-GW.

Step 717, MME send to HSS and notify solicited message.

Step 718, HSS send push-notification-answer information to MME.

Fig. 8 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in Fig. 8, in DMM networks or DMM networks and network network coexisted EPS, it is not provided between MME and L-GW in DMM networks under the scene of interface, attachment is set up between UE and L-GW, if UE asks to set up PDN connections between L-GW, specific steps can include：Step 801, UE send PDN connection requests to MME.

Specifically, UE sends PDN connection requests by base station to MME, wherein, the information such as UE marks and Packet Data Network's type are carried in the PDN connection requests, and by base station addition DMM-enabled marks. Step 802, MME send carrying to base station and set up request.

Specifically, the base station of MME to forwarding PDN connection requests, which sends carrying, sets up request, wherein, the carrying is set up in request and at least carries PDN connection received messages, and DMM-enabled marks are carried in PDN connection received messages, further, the carrying, which is set up in request, can also carry IMSI, MSISDN, APN, Default EPS Bearer QoS, PDN Type, APN-AMBR, EPS Bearer Identity information.

Step 803, base station are sent to L-GW creates session request.

Base station is received after the carrying foundation request that MME is sent, the base station TEID (Tunnel Endpoint Identifier, Tunnel End Point Identifier) and base station address of the user plane carried between distribution and L-GW.

Step 804, L-GW initiate IP-CAN session establishment flows to PCRF.

Step 805, L-GW send to base station and create conversational response, wherein, the L-GW TEID and L-GW addresses of the user plane of the carrying are carried in the establishment conversational response.

Step 806, base station send RRC connection reconfiguration informations to UE.

Step 807, UE are reconfigured to base station transmission RRC connections and are completed information.

Step 808, base station send carrying to MME and set up response.

Specifically, base station sends to carry to MME sets up response, the carrying information for responding and carrying between base station and L-GW is set up in transmission carrying, the carrying information carries PDN Type, PDN Address, EPS Bearer Identity, EPS Bearer QoS, APN-AMBR etc..So as to which MME stores the carrying information between base station and L-GW, for reconstruction of the base station in Service Request flows to UE contexts.

Step 809, UE send direct-sending message to base station, and the direct-sending message carries attachment completion message.Completion message is adhered in step 810, base station to MME forwardings.

Step 811, MME send to HSS and notify solicited message. Specifically, the notice solicited message carries Α Ρ Ν and L-GW mark pair, to the mobile management to user equipment, such as after user equipment movement, the mobile management for causing user equipment to be produced when accessing non-3GG networks.

Step 812, HSS send push-notification-answer information to Μ Μ Ε.

Fig. 9 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in Fig. 9,

DMM networks or DMM networks between UE and L-GW with network network coexisted EPS, under the scene that there is interface between the MME and L-GW in DMM networks, setting up after attachment, may include steps of：

Step 901, UE send PDN connection requests to MME.

Specifically, UE sends PDN connection requests by the base station that is connected with UE to MME, wherein, the information such as UE marks and Packet Data Network's type are at least carried in the PDN connection requests, and DMM-enabled marks, the information of L-GW addresses are added by base station.

Step 902, MME send to L-GW and create session request.

Specifically, the L-GW addresses carried in the PDN connection requests that MME is sent according to UE, send to corresponding L-GW and create session request.

Step 903, L-GW initiate IP-CAN session establishment flows to PCRF.

The MME that step 904, L-GW create session request to sending, which is sent, creates conversational response.L-GW sends to MME and creates conversational response, wherein, carried in the establishment conversational response

The L-GW TEID and L-GW addresses of the user plane of L-GW distribution.

Step 905, MME send carrying to corresponding base station and set up request, to set up 7 between base station and L-GW | carry.

Specifically, the base station is the base station for forwarding PDN connection requests in step 901, and the carrying that MME is sent to the base station is set up in request and at least carries PDN connection received messages, and DMM-enabled marks are carried in PDN connection received messages, further, the carrying, which is set up in request, can also carry the information carried between L-GW and MME.

Step 906, base station send RRC connection reconfiguration informations to UE.

Step 907, UE are reconfigured to base station transmission RRC connections and are completed information.

The present embodiment UE is reconfigured to base station transmission RRC connections and is completed information, so as to complete UE What space interface signaling was connected between base station reconfigures.

Step 908, base station send carrying to MME and set up response.

Specifically, base station sends carrying to MME sets up response, the base station TEID and base station address that response carries user plane are set up in the carrying.

Step 909, UE send direct-sending message to base station, and the direct-sending message carries attachment completion message.Completion message is adhered in step 910, base station to MME forwardings.

Step 911, MME send modification carrying request to L-GW, and base station TEID and base station address are carried in modification carrying request.

Step 912, L-GW send modification carrying response, the response for carrying request to modification to MME.

After step 912, UE can carry out downlink data transmission between L-GW.

Step 913, MME send to HSS and notify solicited message.

Step 914, HSS send push-notification-answer information to MME.

Figure 10 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in Figure 10, the applicable scene of the present embodiment is, in DMM networks or DMM networks and network network coexisted EPS, interface is not provided between MME and L-GW in DMM networks to obtain under scene, have been set up after a plurality of PDN connections, may include steps of between UE and L-GW：

Step 1001, UE send PDN to MME and remove connection request.

Specifically, UE sends PDN by base station to MME removes connection request, the PDN goes connection request to go connection to the PDN connections between UE and L-GW.Wherein, the PDN is gone in connection request comprising LBI (Linked EPS Bearer Identifier, default bearing mark), the default bearing of the PDN connections for indicating to go connection.

PDN connections go the connection can also to be initiated by Μ Μ Ε, and the reason such as when the modification of UE subscription data or resource shortage, Μ Μ Ε determine release UE PDN connections.

Connection is gone to UE certain PDN connection, PDN can be initiated by UE and remove connection request, Or connection is gone by MME triggerings PDN.

Step 1002, MME are sent to base station deactivates carrying request.

Specifically, MME goes to the base station of connection request to send and deactivates carrying request to forwarding PDN, wherein, LBI is included in deactivation carrying request, the default bearing that deactivation carrying request is used between deactivation base station and L-GW is designated all carryings of LBI PDN connections.

Step 1003, base station are sent to L-GW deletes session request.

The information carried in the deactivation carrying request that base station is sent according to MME, sent to L-GW and delete session request, LBI is included in the deletion session request, the deletion session request is designated all carryings of LBI PDN connections to the default bearing deleted between base station and L-GW.

Step 1004, L-GW initiate IP-CAN session termination flows to PCRF.

In the present embodiment, if deploying dynamic PCC, L-GW initiates IP-CAN session termination flows to PCRF.

Step 1005, L-GW send to base station and delete conversational response, to the response to deleting session request.

Step 1006, base station send RRC connection reconfiguration informations to UE, to change space interface signaling connection.

Step 1007, UE are reconfigured to base station transmission RRC connections and are completed information.

Step 1008, base station deactivate carrying response to MME transmissions, to inform that MME has completed to delete all carryings that the load of acquiescence 7 between UE and L-GW is designated LBI PDN connections.

Step 1009, UE send direct-sending message to base station, and the direct-sending message carries deactivation EPS bearer context received messages.

Step 1010, base station are sent to MME deactivates EPS bearer context received messages.Figure 11 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in figure 11, the applicable scene of the present embodiment is, in DMM networks or DMM networks and network network coexisted EPS, under the scene that there is interface between MME and L-GW in DMM networks, have been set up after a plurality of PDN connections, may include steps of between UE and L-GW：

Step 1101, UE send PDN connections to MME by base station and remove connection request.

Specifically, UE sends PDN by the base station being connected with UE to MME removes connection request, the PDN goes connection request to go connection to the PDN connections between UE and L-GW.Wherein, The PDN is gone in connection request comprising LBI (Linked EPS Bearer Identifier, default bearing mark）, the default bearing of the PDN connections for indicating to go connection.

PDN connections go connection to be initiated by MME, and the reason such as when the modification of UE subscription data or resource shortage, MME determines release UE PDN connections.

Step 1102, MME send to L-GW and delete session request, include LBI in the deletion session request, and the deletion session request is designated all carryings of LBI PDN connections to the default bearing deleted between MME and L-GW.

Step 1103, L-GW initiate IP-CAN session termination flows to PCRF.

Step 1104, L-GW send to MME and delete conversational response.

Specifically, the MME is to send the MME for deleting session request to L-GW in step 1102, L-GW sends to MME and deletes conversational response, to the response to deleting session request.

Step 1105, MME are sent to corresponding base station deactivates carrying request, includes LBI in deactivation carrying request, all carryings of LBI PDN connections are designated to the default bearing between deactivation base station and L-GW.

Specifically, the base station is the base station for forwarding PDN to remove connection request in step 1101.

Step 1106, base station send RRC connection reconfiguration informations to UE.

Step 1107, UE are reconfigured to base station transmission RRC connections and are completed information.

The present embodiment UE sends RRC connections to base station and reconfigures and complete information, so as to complete reconfiguring for RRC connections between UE and base station.

Step 1108, base station are sent to MME deactivates carrying response.

Step 1109, UE send direct-sending message to base station, and the direct-sending message carries deactivation EPS bearer context received messages.

Step 1110, base station are sent to MME deactivates bearer context received message.

Figure 12 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in figure 12, DMM networks or DMM networks are useful in in network network coexisted EPS, being not present between the MME and L-GW in DMM networks under the scene of interface, in DMM networks in embodiment In have built up attachment after, may include steps of：

Step 1201, UE initiate attachment removal by base station to MME to be asked, and the attachment removal to ask UE is asked in the attachment removal.

Step 1202, MME are sent to base station deactivates carrying request, there is a plurality of PDN connections between UE and L-GW, and MME deactivates carrying request for every PDN linkup transmit.Each is deactivated in carrying request and includes LBI, and all carryings of LBI PDN connections are designated to the default bearing between deactivation base station and L-GW.

Step 1203, base station are sent to corresponding L-GW deletes session request, so that the corresponding L-GW deletes the PDN connections set up；There are a plurality of PDN connections between UE and L-GW, session request is deleted in base station for every PDN linkup transmit.Each, which is deleted, includes LBI in session request, the default bearing to delete between base station and L-GW is designated LBI PDN connections.

Step 1024:L-GW initiates IP-CAN session termination flows to PCRF.

Step 1205, L-GW send to base station and delete conversational response.

Step 1206, base station are sent to MME deactivates carrying response, the response to carry request to deactivating.

Step 1207, MME send attachment removal received message by base station to UE.

Progress RRC connections, which are translated, between step 1208, base station and UE puts.

That is, MME passes through UE context release commands（UE Context Release

Command) indicate to carry out space interface signaling Connection Release between base station and UE, base station is discharged by UE contexts and completed afterwards（UE Context Release Complete) message inform MME RRC successful connections discharge.

Figure 13 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in figure 13, it is useful in embodiment in DMM networks or DMM networks and network network coexisted EPS, under the scene that there is interface between MME and L-GW in DMM networks, have built up after attachment, may include steps of in DMM networks：

Step 1301, UE initiate attachment removal by base station to MME to be asked, and the attachment removal to ask UE is asked in the attachment removal.

Step 1302, MME send to L-GW and delete session request, so that L-GW deletes built Vertical PDN connections.There are a plurality of PDN connections between UE and L-GW, MME deletes session request for every PDN linkup transmit.Each, which is deleted, includes LBI in session request, the default bearing to delete between base station and L-GW is designated LBI PDN connections.

IP-CAN session termination flows are carried out between step 1303, L-GW and PCRF.

Step 1304, L-GW send to MME and delete conversational response.

Step 1305, MME send attachment removal received message to UE.

Progress RRC connections, which are translated, between step 1306, base station and UE puts.

That is, MME passes through UE context release commands（UE Context Release

Figure 14 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in figure 14, it is useful in embodiment in DMM networks or DMM networks and network network coexisted EPS, in the absence of under the scene of interface between MME and L-GW in DMM networks, have built up after attachment, may include steps of in DMM networks：

Step 1401, MME initiate attachment removal by base station to UE to be asked, and the attachment removal to notify UE is asked in the attachment removal.

Step 1402, MME are sent to base station deactivates carrying request, and how many bar PDN connection between UE and L-GW, MME deactivates carrying request for every PDN linkup transmit.Each is deactivated in carrying request and includes LBI, and all carryings of LBI PDN connections are designated to the default bearing between deactivation base station and L-GW.

Step 1403, base station are sent to corresponding L-GW deletes session request, so that corresponding L-GW deletes the PDN connections set up；There are a plurality of PDN connections between UE and L-GW, session request is deleted in base station for every PDN linkup transmit.Each, which is deleted, includes LBI in session request, the default bearing to delete between base station and L-GW is designated LBI PDN connections.

IP-CAN session termination flows are carried out between step 1404, L-GW and PCRF.

In the present embodiment, if deploying dynamic PCC, L-GW initiates IP-CAN session termination flows to PCRF. Step 1405, L-GW send to base station and delete conversational response.

Step 1406, base station are sent to MME deactivates carrying response, the response to carry request to deactivating.

Step 1407, UE send attachment removal received message by base station to MME.

Progress RRC connections, which are translated, between step 1408, base station and UE puts.

That is, MME passes through UE context release commands（UE Context Release Command) indicate to carry out space interface signaling Connection Release between base station and UE, base station is discharged by UE contexts and completed afterwards（UE Context Release Complete) message inform MME RRC successful connections discharge.

Figure 15 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in figure 15, it is useful in embodiment in DMM networks or DMM networks and network network coexisted EPS, under the scene that there is interface between MME and L-GW in DMM networks, have built up after attachment, may include steps of in DMM networks：

Step 1501, MME initiate attachment removal by base station to UE to be asked, and the attachment removal to notify UE is asked in the attachment removal.

Step 1502, MME send to L-GW and delete session request, so that corresponding L-GW deletes the PDN connections set up.There are a plurality of PDN connections between UE and L-GW, session request is deleted in base station for every PDN linkup transmit.Each, which is deleted, includes LBI in session request, the default bearing to delete between base station and L-GW is designated LBI PDN connections.

IP-CAN session termination flows are carried out between step 1503, L-GW and PCRF.

Step 1504, L-GW send to MME and delete conversational response.

Step 1505, UE send attachment removal received message to MME.

Progress RRC connections, which are translated, between step 1506, base station and UE puts.

That is, MME passes through UE context release commands（UE Context Release Command) progress space interface signaling is connected to translate and put between instruction base station and UE, and base station passes through the release of UE contexts and completed afterwards（UE Context Release Complete) message inform MME RRC successful connections discharge.

Figure 16 is the schematic flow sheet of yet another embodiment of the invention communication means, as shown in figure 16, the embodiment is useful in DMM networks or DMM networks and network network coexisted EPS, under the scene that there is interface between MME and L-GW in DMM networks, or MME and L-GW Between be not present interface scene under, have built up after attachment, may include steps of in DMM networks：

Step 1601, HSS send canceling position to MME（Cancel Location) message.Step 1602, UE, base station, detachment process is carried out between L-GW, MME and PCRF.Specifically, in the absence of under the scene of interface between MME and L-GW, the process is as shown in Figure 14；Under the scene that there is interface between MME and L-GW, the process is as shown in figure 15.

Step 1603, MME send canceling position response to HSS.

Progress RRC connections, which are translated, between step 1604, base station and UE puts.

Figure 17 is one embodiment of the invention L-GW structural representation, and as shown in figure 16, the L-GW includes：Receiving module 1701, session request is created for receiving；Processing module 1702, is carried for being set up according to the establishment session request；Sending module 1703, conversational response is created for sending.

Further, the receiving module 1701, is additionally operable to after sending module sends the establishment conversational response, receives and delete session request；The processing module 1702, is additionally operable to after the receiving module receives the deletion session request, deletes the carrying set up；The sending module 1703, is additionally operable to after the carrying that the processing module deletion has been set up, sends and delete conversational response.

Further, the receiving module 1701, the establishment session request sent specifically for base station corresponding with the L-GW, the establishment session request is that the base station corresponding with the L-GW is sent after the initial context for receiving MME transmissions sets up request or request is set up in carrying；The processing module 1702, specifically for setting up the carrying for some specific user between base station corresponding with the L-GW；The sending module 1703, creates conversational response, so as to carry out radio resource control RRC connection reconfiguration between the base station corresponding with the L-GW and user equipment (UE) specifically for being sent to the base station corresponding with the L-GW.

Further, the receiving module 1701, the deletion session request sent specifically for base station corresponding with the L-GW, the deletion session request is that the base station corresponding with the L-GW is sent after the deactivation carrying request of mobility management entity MME transmissions is received；The processing Module 1702, specifically for deleting the carrying for some specific user between base station corresponding with the L-GW；The sending module 1703, sends specifically for base station corresponding with the L-GW and deletes conversational response, so that the base station corresponding with the L-GW is sent to the MME deactivates carrying response.

Further, the receiving module 1701, specifically for receiving the establishment session request that MME is sent, the establishment session request is that the MME is sent after the attach request or PDN connection requests of base station transmission corresponding with the L-GW is received；The processing module 1702, specifically for setting up the carrying for some specific user between L-GW base stations corresponding with the L-GW；The sending module 1703, conversational response is created specifically for being sent to the MME, asks or carry to set up request so that the MME sends initial context foundation to the base station corresponding with the L-GW.

Further, the receiving module 1701, specifically for receiving the deletion session request that MME is sent, the deletion session request, which is the MME, to be received after the PDN that UE forwarded by corresponding base station goes connection request or attachment removal to ask or the MME determines to initiate to send after detachment process or HSS send cancel location message to MME；The processing module 1702, specifically for deleting the carrying for some specific user between L-GW base stations corresponding with the L-GW；The sending module 1703, conversational response is deleted specifically for being sent to the MME, so that the MME deactivates carrying request to the base station transmission corresponding with the L-GW or sends the attachment removal received message that attachment removal received message or the MME receptions terminal are sent to the UE.

The L-GW of the present embodiment, can be used for the technical scheme for performing the communication means embodiment that the embodiment of the present invention is provided, and its implementing principle and technical effect is similar, and no longer Redundant is stated herein.

Figure 18 is the structural representation of one embodiment of the invention base station, and as shown in figure 18, the base station includes：Request is set up in receiving module 1801, initial context foundation request or carrying for receiving MME transmissions, after sending module transmission creates session request, receives the establishment conversational response that the corresponding L-GW is sent；The sending module 1802, for sending the establishment session request to L-GW corresponding with the base station；Processing module 1803, after receiving the establishment conversational response that the corresponding L-GW is sent in the receiving module, carries out RRC connections and reconfigures.

Further, the receiving module 1801, is additionally operable to after processing module progress RRC connections are reconfigured, and receives the deactivation carrying request that MME is sent, and the deactivation carrying request is taken With LBI marks；The sending module 1802, is additionally operable to after the receiving module receives the deactivation carrying request that MME is sent, is sent to L-GW corresponding with the base station and delete session request；And after the receiving module receives the deletion conversational response that the corresponding L-GW is sent, sent to the MME and deactivate carrying response；The receiving module 1801, is additionally operable to after the sending module transmission deletion session request, receives the deletion conversational response that the corresponding L-GW is sent.

Further, the sending module 1802, it is additionally operable to after being reconfigured in processing module progress RRC connections, initial context, which is sent, to the MME sets up response, response is set up in the carrying includes evolved packet system bearer quality of service, and sets up response to MME transmission carryings.

The base station of the present embodiment, can be used for the technical scheme for performing the communication means embodiment that the embodiment of the present invention is provided, and its implementing principle and technical effect is similar, and no longer Redundant is stated herein.

Figure 19 is one embodiment of the invention MME structural representation, and as shown in figure 19, the MME includes：Sending module 1901, request is set up for sending initial context to base station, so that the carrying that the base station is set up between L-GW corresponding with the base station；Receiving module 1902, sets up response, response is set up in the carrying includes evolved packet system bearer quality of service for receiving the initial context that the base station is returned.

Further, the sending module 1901, it is additionally operable to after the receiving module receives the initial context foundation response that the base station is returned, sets up and ask to base station transmission carrying, so that the carrying that the base station is set up between L-GW corresponding with the base station；The receiving module 1902, is additionally operable to after the sending module sends the carrying foundation request, the carrying that the reception base station is returned, which is set up, to be responded.

Further, the sending module 1901, after receiving the initial context foundation response that the base station is returned in the receiving module, sent to the base station and deactivate carrying request, so that the carrying set up between L-GW corresponding with the base station is terminated in the base station, the deactivation carrying request carries LBI marks；The receiving module 1902, is additionally operable to after the sending module sends the deactivation carrying request, the deactivation that the reception base station is returned carries response.

The MME of the present embodiment, can be used for the technical scheme for performing the communication means embodiment that the embodiment of the present invention is provided, and its implementing principle and technical effect is similar, and no longer Redundant is stated herein.

Figure 20 is further embodiment of this invention MME structural representation, as shown in figure 20, described MME includes：Sending module 2001, session request is created for being sent to L-GW, so as to set up carrying between the L-GW；Receiving module 2002, for receiving the establishment conversational response that the L-GW is returned

Further, after the establishment conversational response for receiving the L-GW returns, in addition to：The sending module 2001, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, is sent to the L-GW and delete session request, so as to terminate the carrying set up between the L-GW；The receiving module 2002, is additionally operable to after the sending module sends the deletion session request, receives the deletion conversational response that L-GW is sent.

Further, the MME also includes：Processing module 2003, the receiving module 2002 is additionally operable to before the sending module sends the establishment session request, receives the attach request that base station corresponding with the L-GW is sent, and the attach request carries DMM marks；The processing module 2003, for receiving the attach request according to the receiving module, is authenticated and location updating；The sending module 2001, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, and sending initial context to the corresponding base station sets up request, is reconfigured so that the corresponding base station carries out RRC.

Further, the receiving module 2002, is additionally operable to before the sending module sends the deletion session request, receives the attachment removal request that UE is sent；The sending module 2001, is additionally operable to after the receiving module receives the deletion conversational response that L-GW is sent, and attachment received message is sent to the UE；Or, the processing module 2003 is additionally operable to before the sending module sends to the L-GW and deletes session request, attachment removal request is sent to UE；The receiving module 2002, is additionally operable to after the deletion conversational response that L-GW is sent is received, and receives the attachment received message that the UE is sent.

Further, the receiving module 2002, is additionally operable to before the sending module sends to L-GW and creates session request, receives the PDN connection requests that base station corresponding with the L-GW is sent；The sending module 2001, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, and sending carrying to the corresponding base station sets up request, is reconfigured so that the corresponding base station carries out RRC.

Further, the receiving module 2002, is additionally operable to before the sending module sends to the L-GW and deletes session request, the PDN that receiving terminal is sent by base station corresponding with the L-GW removes connection request；The processing module 2003, is additionally operable to receive L-GW in the receiving module After the deletion conversational response of transmission, sent to the corresponding base station and deactivate carrying request, reconfigured so that the corresponding base station carries out RRC connections to the terminal.

The communication system of the embodiment of the present invention includes：What any device embodiment of the present invention was provided

The mobility management entity MME that the base station and any device embodiment of the present invention that L-GW, any device embodiment of the present invention are provided are provided.

Further, it is provided with interface between the L-GW MME corresponding with the L-GW.Or, further, interface is not provided between L-GW MME corresponding with the L-GW.

The communication system of the present embodiment, can be used for the technical scheme for performing the communication means embodiment that embodiment illustrated in fig. 1 of the present invention is provided, and its implementing principle and technical effect is similar, and no longer Redundant is stated herein.

Figure 21 is further embodiment of this invention L-GW structural representation, and as shown in figure 21, the L-GW includes：Emitter 2101, receiver 2102, memory 2103 and the processor 2104 being connected respectively with the emitter 2101, the receiver 2102 and the memory 2103, wherein, batch processing code is stored in the memory 2103, and the processor 2104 is used to call the program code stored in the memory 2103, the communication means that embodiment illustrated in fig. 2 of the present invention is provided is performed.

The L-GW of the present embodiment, can be used for the technical scheme for performing the communication means embodiment that Fig. 2 embodiments of the present invention are provided, and its implementing principle and technical effect is similar, and no longer Redundant is stated herein.

Figure 22 is the structural representation of further embodiment of this invention base station, and as shown in figure 22, the base station includes：Emitter 2201, receiver 2202, memory 2203 and the processor 2204 being connected respectively with the emitter 2201, the receiver 2202 and the memory 2203, wherein, batch processing code is stored in the memory 2203, and the processor 2204 is used to call the program code stored in the memory 2203, the communication means provided in embodiment illustrated in fig. 3 of the present invention is performed.

The base station of the present embodiment, can be used for the technical scheme for performing the communication means embodiment that embodiment illustrated in fig. 3 of the present invention is provided, and its implementing principle and technical effect is similar, and no longer Redundant is stated herein.

Figure 23 be yet another embodiment of the invention MME structural representation, as shown in figure 23, the MME include emitter 2301, receiver 2302, memory 2303 and respectively with the transmitting The processor 2304 that machine 2301, the receiver 2302 and the memory 2303 are connected, wherein, batch processing code is stored in the memory 2303, and the processor 2304 is used to call the program code stored in the memory 2303, the communication means provided in Fig. 4 of the present invention or embodiment illustrated in fig. 5 is performed.

It should be noted that the MME shown in Figure 23 can be used for the method for realizing that Fig. 4 or Fig. 5 illustrated embodiments of the present invention are provided, and describe identical with above method embodiment on MME, will not be repeated here.

In yet another embodiment of the invention communication system, local gateway L-GW as shown in figure 21, base station as shown in figure 22 and mobility management entity MME as shown in figure 23 can be included.

One of ordinary skill in the art will appreciate that, realize that all or part of step of above-mentioned each method embodiment can be completed by the related hardware of programmed instruction.Foregoing program can be stored in a computer read/write memory medium.The program upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes, ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that, various embodiments above be merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that, it can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

Claims

1st, a kind of communication means, it is characterised in that including：

Local gateway L-GW, which is received, creates session request；

The L-GW sets up according to the establishment session request and carried；

The L-GW, which is sent, creates conversational response.

2nd, the method according to claim 1, it is characterised in that the transmission is created after carrying response, in addition to：

The L-GW, which is received, deletes session request；

The L-GW deletes the carrying set up according to the deletion session request；

The L-GW, which is sent, deletes conversational response.

3rd, the method according to claim 1, it is characterised in that the local gateway L-GW, which is received, creates session request, including：

The L-GW receives the establishment session request that base station corresponding with the L-GW is sent, and the establishment session request is that the base station corresponding with the L-GW is sent after the initial context foundation request or 7 for receiving MME transmissions carry and set up request；

The L-GW sets up according to the establishment session request and carried, including：

The carrying for some specific user that the L-GW is set up between L-GW base stations corresponding with the L-GW；

Described send creates conversational response, including：

Sent to corresponding with the L-GW base station and create conversational response so that it is described with it is described

Radio resource control RRC connection reconfiguration is carried out between the corresponding base stations of L-GW and user equipment (UE).

4th, method according to claim 2, it is characterised in that the L-GW, which is received, deletes session request, including：

The L-GW receives the deletion session request that the base station corresponding with the L-GW is sent, and the deletion session request is that the base station corresponding with the L-GW is sent after the deactivation carrying request of mobility management entity MME transmissions is received；

The L-GW according to it is described deletion session request deleting bearing, including：

The L-GW deletes the carrying for some specific user between L-GW base stations corresponding with the L-GW； The transmission deleting bearing response, including：

Sent to the base station corresponding with the L-GW and delete conversational response, so that the base station corresponding with the L-GW is sent to the MME deactivates carrying response.

5th, the method according to claim 1, it is characterised in that the local gateway L-GW, which is received, creates session request, including：

The L-GW receives the establishment session request that MME is sent, and the establishment session request is that the MME is sent after the attach request or PDN connection requests of base station transmission corresponding with the L-GW is received；

The L-GW sets up according to the establishment session request and carried, including：

The carrying for some specific user that the L-GW is set up between L-GW base stations corresponding with the L-GW；

Described send creates conversational response, including：

Sent to the MME and create conversational response, asked so that the MME carries to set up to the base station transmission initial context foundation request corresponding with the L-GW or 7.

6th, method according to claim 2, it is characterised in that the L-GW, which is received, deletes session request, including：

The L-GW receives the deletion session request that MME is sent, and the deletion session request, which is the MME, to be received after the PDN that UE forwarded by corresponding base station goes connection request or attachment removal to ask or the MME determines to initiate to send after detachment process or HSS send cancel location message to MME；

The L-GW according to it is described deletion session request deleting bearing, including：

The L-GW deletes the carrying for some specific user between L-GW base stations corresponding with the L-GW；

Described send deletes conversational response, including：

Sent to the MME and delete conversational response, so that the MME deactivates carrying request to the base station transmission corresponding with the L-GW or sends the attachment removal received message that attachment removal received message or the MME receptions terminal are sent to the UE.

7th, a kind of communication means, it is characterised in that including：

The initial context foundation request or carrying that base station receives MME transmissions are set up and asked；Sent to L-GW corresponding with the base station and create session request； Receive the establishment conversational response that the corresponding L-GW is sent；

RRC connections are carried out to reconfigure.

8th, method according to claim 7, it is characterised in that after the carry out RRC connections are reconfigured, in addition to：

The deactivation carrying request that MME is sent is received, the deactivation carrying request carries LBI marks；

Sent to L-GW corresponding with the base station and delete session request；

Receive the deletion conversational response that the corresponding L-GW is sent；

Sent to the MME and deactivate carrying response.

9th, the method according to claim 7 or 8, it is characterised in that if base station receives the initial context foundation request that MME is sent, after the progress RRC connections are reconfigured, in addition to：Initial context is sent to the MME and sets up response, and described 7, which carry foundation response, includes evolved packet system bearer quality of service；

If base station receives the carrying foundation request that MME is sent, after the progress RRC connections are reconfigured, in addition to：

7, which are sent, to the MME carries foundation response.

10th, a kind of communication means, it is characterised in that including：

MME sends initial context to base station and sets up request, so that 7 between base station foundation L-GW corresponding with the base station | carry；

The MME receives the initial context foundation response that the base station is returned, and response is set up in the carrying includes evolved packet system bearer quality of service.

11st, method according to claim 10, it is characterised in that the initial context that the reception base station is returned is set up after response, in addition to：

Carrying is sent to the base station and sets up request, so that the load that the base station is set up between L-GW corresponding with the base station；

Receive the carrying foundation response that the base station is returned.

12nd, the method according to claim 10 or 11, it is characterised in that the initial context that the reception base station is returned is set up after response, in addition to：

Sent to the base station and deactivate carrying request, so that the carrying set up between L-GW corresponding with the base station is terminated in the base station, the deactivation carrying request carries LBI marks； Receive the deactivation carrying response that the base station is returned.

13rd, a kind of communication means, it is characterised in that including：

MME sends to L-GW and creates session request, so as to set up carrying between the L-GW；Receive the establishment conversational response that the L-G W are returned.

14th, method according to claim 13, it is characterised in that after the establishment conversational response that the reception L-GW is returned, in addition to：

Sent to the L-GW and delete session request, so as to terminate the carrying set up between the L-GW；

Receive the deletion conversational response that L-GW is sent.

15th, the method according to claim 13 or 14, it is characterised in that the MME to

L-GW is sent before creating session request, in addition to：

The MME receives the attach request that base station corresponding with the L-GW is sent, and the attach request carries distributed mobile management DMM marks；

According to the attach request, it is authenticated and location updating；

After the establishment conversational response for receiving the L-GW returns, in addition to：

Initial context is sent to the corresponding base station and sets up request, is reconfigured so that the corresponding base station carries out RRC.

16th, the method according to claim 15, it is characterised in that described to be sent to the L-GW before deleting session request, in addition to：Receive the attachment removal request that UE is sent；After the deletion conversational response that the reception L-GW is sent, in addition to：Attachment received message is sent to the UE；Or, it is described to be sent to the L-GW before deleting session request, in addition to：Attachment removal request is sent to UE；After the deletion conversational response that the reception L-GW is sent, in addition to：Receive the attachment received message that the UE is sent.

17th, the method according to claim 13 or 14, it is characterised in that the MME is sent before creating session request to L-GW, in addition to：

The MME receives the PDN connection requests that base station corresponding with the L-GW is sent；After the establishment conversational response for receiving the L-GW returns, in addition to：

Carrying is sent to the corresponding base station and sets up request, is reconfigured so that the corresponding base station carries out RRC.

18th, method according to claim 17, it is characterised in that described to the L-GW Send before deleting session request, in addition to：

The PDN that receiving terminal is sent by base station corresponding with the L-GW removes connection request；After the deletion conversational response that the reception L-GW is sent, in addition to：

Sent to the corresponding base station and deactivate carrying request, reconfigured so that the corresponding base station carries out RRC connections to the terminal.

19th, a kind of local gateway L-GW, it is characterised in that including：

Receiving module, session request is created for receiving；

Processing module, is carried for being set up according to the establishment session request；

Sending module, conversational response is created for sending.

20th, L-GW according to claim 19, it is characterised in that the receiving module, is additionally operable to after sending module sends the establishment conversational response, receives and delete session request；

The processing module, is additionally operable to after the receiving module receives the deletion session request, deletes the carrying set up；

The sending module, is additionally operable to after the carrying that the processing module deletion has been set up, sends and delete conversational response.

21st, L-GW according to claim 19, it is characterized in that, the receiving module, the establishment session request sent specifically for base station corresponding with the L-GW, the establishment session request is that the base station corresponding with the L-GW is sent after the initial context for receiving MME transmissions sets up request or request is set up in carrying；

The processing module, specifically for setting up the carrying for some specific user between base station corresponding with the L-GW；

The sending module, creates conversational response, so as to carry out radio resource control RRC connection reconfiguration between the base station corresponding with the L-GW and user equipment (UE) specifically for being sent to the base station corresponding with the L-GW.

22nd, L-GW according to claim 20, it is characterized in that, the receiving module, the deletion session request sent specifically for base station corresponding with the L-GW, the deletion session request is that the base station corresponding with the L-GW is sent after the deactivation carrying request of mobility management entity MME transmissions is received；

The processing module, specifically for deleting the carrying for some specific user between base station corresponding with the L-GW； The sending module, sends specifically for base station corresponding with the L-GW and deletes conversational response, so that the base station corresponding with the L-GW is sent to the MME deactivates carrying response.

23rd, L-GW according to claim 19, it is characterised in that

The receiving module, specifically for receiving the establishment session request that MME is sent, the establishment session request is that the MME is sent after the attach request or PDN connection requests of base station transmission corresponding with the L-GW is received；

The processing module, specifically for setting up the carrying for some specific user between L-GW base stations corresponding with the L-GW；

The sending module, conversational response is created specifically for being sent to the MME, is asked so that the MME carries to set up to the base station transmission initial context foundation request corresponding with the L-GW or 7.

24th, L-GW according to claim 20, it is characterised in that

The receiving module, specifically for receiving the deletion session request that MME is sent, the deletion session request, which is the MME, to be received after the PDN that UE forwarded by corresponding base station goes connection request or attachment removal to ask or the MME determines to initiate to send after detachment process or HSS send cancel location message to MME；

The processing module, specifically for deleting the carrying for some specific user between L-GW base stations corresponding with the L-GW；

The sending module, conversational response is deleted specifically for being sent to the MME, mobile load request is deactivated so that the MME is sent to the base station corresponding with the L-GW or receives the attachment removal received message that the terminal is sent to UE transmission attachment removal received messages or the Μ Μ Ε.

25th, a kind of base station, it is characterised in that including：

Request is set up in receiving module, initial context foundation request or carrying for receiving Μ Μ Ε transmissions, after sending module transmission creates session request, receives the establishment conversational response that the corresponding L-GW is sent；

The sending module, for sending the establishment session request to L-GW corresponding with the base station；

Processing module, after receiving the establishment conversational response that the corresponding L-GW is sent in the receiving module, carries out RRC connections and reconfigures.

26th, base station according to claim 25, it is characterised in that The receiving module, is additionally operable to after processing module progress RRC connections are reconfigured, and receives the deactivation carrying request that MME is sent, and the deactivation carrying request carries LBI marks；The sending module, is additionally operable to after the receiving module receives the deactivation carrying request that MME is sent, is sent to L-GW corresponding with the base station and delete session request；And after the receiving module receives the deletion conversational response that the corresponding L-GW is sent, sent to the MME and deactivate mobile load response；

The receiving module, is additionally operable to after the sending module transmission deletion session request, receives the deletion conversational response that the corresponding L-GW is sent.

27th, the base station according to claim 25 or 26, it is characterised in that

The sending module, it is additionally operable to after being reconfigured in processing module progress RRC connections, initial context is sent to the MME and sets up response, and 7 load, which sets up response, includes evolved packet system bearer quality of service, and sends carrying foundation response to the MME.

28th, a kind of mobility management entity MME, it is characterised in that including：

Sending module, request is set up for sending initial context to base station, so that the carrying that the base station is set up between L-GW corresponding with the base station；

Receiving module, sets up response, response is set up in the carrying includes evolved packet system bearer quality of service for receiving the initial context that the base station is returned.

29th, MME according to claim 28, it is characterised in that

The sending module, is additionally operable to after the receiving module receives the initial context foundation response that the base station is returned, sets up and ask to base station transmission carrying, so that the carrying that the base station is set up between L-GW corresponding with the base station；

The receiving module, is additionally operable to after the sending module sends the carrying foundation request, the carrying that the reception base station is returned, which is set up, to be responded.

30th, the MME according to claim 28 or 29, it is characterised in that

The sending module, after receiving the initial context foundation response that the base station is returned in the receiving module, sent to the base station and deactivate carrying request, so that the carrying set up between L-GW corresponding with the base station is terminated in the base station, the deactivation carrying request carries LBI marks；

The receiving module, is additionally operable to after the sending module sends the deactivation carrying request, the deactivation that the reception base station is returned carries response. 31st, a kind of mobility management entity MME, it is characterised in that including：

Sending module, session request is created for being sent to L-GW, so as to set up carrying between the L-GW；

Receiving module, for receiving the establishment conversational response that the L-GW is returned.

32nd, MME according to claim 31, it is characterised in that after the establishment conversational response that the reception L-GW is returned, in addition to：

The sending module, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, is sent to the L-GW and delete session request, so as to terminate the load set up between the L-GW；

The receiving module, is additionally operable to after the sending module sends the deletion session request, receives the deletion conversational response that L-GW is sent.

33rd, the MME according to claim 31 or 32, it is characterised in that also include：Processing module,

The receiving module, is additionally operable to before the sending module sends the establishment session request, receives the attach request that base station corresponding with the L-GW is sent, and the attach request carries distributed mobile management DMM marks；

The processing module, for receiving the attach request according to the receiving module, is authenticated and location updating；

The sending module, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, and sending initial context to the corresponding base station sets up request, is reconfigured so that the corresponding base station carries out RRC.

34th, MME according to claim 33, it is characterised in that

The receiving module, is additionally operable to before the sending module sends the deletion session request, receives the attachment removal request that UE is sent；

The sending module, is additionally operable to after the receiving module receives the deletion conversational response that L-GW is sent, and attachment received message is sent to the UE；

Or,

The processing module, is additionally operable to before the sending module sends to the L-GW and deletes session request, attachment removal request is sent to UE；

The receiving module, is additionally operable to after the deletion conversational response that L-GW is sent is received, receives The attachment received message that the UE is sent.

35th, the MME according to claim 31 or 32, it is characterised in that

The receiving module, is additionally operable to before the sending module sends to L-GW and creates session request, receives the PDN connection requests that base station corresponding with the L-GW is sent；

The sending module, is additionally operable to after the receiving module receives the establishment conversational response that the L-GW is returned, and sending carrying to the corresponding base station sets up request, is reconfigured so that the corresponding base station carries out RRC.

36th, MME according to claim 35, it is characterised in that

The receiving module, is additionally operable to before the sending module sends to the L-GW and deletes session request, the PDN that receiving terminal is sent by base station corresponding with the L-GW removes connection request；The processing module, is additionally operable to after the receiving module receives the deletion conversational response that L-GW is sent, and is sent to the corresponding base station and deactivates carrying request, is reconfigured so that the corresponding base station carries out RRC connections to the terminal.

37th, a kind of communication system, it is characterised in that including：Local gateway L-GW as described in any one in claim 19-24, the base station as described in any one in claim 25-27 and the mobility management entity MME as described in any one in claim 28-36.

38th, the system according to claim 37, it is characterised in that be provided with interface between the L-GW MME corresponding with the L-GW.

39th, the system according to claim 37, it is characterised in that be not provided with interface between L-GW MME corresponding with the L-GW.

40th, a kind of local gateway L-GW, it is characterised in that including：Emitter, receiver, memory and the processor being connected respectively with the emitter, the receiver and the memory, wherein, batch processing code is stored in the memory, and the processor is used to call the program code stored in the memory, the method as described in any one in claim 1-6 is performed.

41st, a kind of base station, it is characterised in that including：Emitter, receiver, memory and the processor being connected respectively with the emitter, the receiver and the memory, wherein, batch processing code is stored in the memory, and the processor is used to call the program code stored in the memory, the method as described in any one in claim 7-9 is performed.

42nd, a kind of mobility management entity MME, it is characterised in that including：Emitter, receiver, memory and the processing being connected respectively with the emitter, the receiver and the memory Device, wherein, batch processing code is stored in the memory, and the processor is used to call the program code stored in the memory, performs the method as described in any one in claim 10-18.

43rd, a kind of communication system, it is characterised in that including：Local gateway L-GW as claimed in claim 40, base station as claimed in claim 41 and mobility management entity MME as claimed in claim 42.