CN101686232A

CN101686232A - Method for negotiating communication protocol version, system and equipment thereof

Info

Publication number: CN101686232A
Application number: CN200810222794A
Authority: CN
Inventors: 靳维生; 刘海; 张巧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-09-25
Filing date: 2008-09-25
Publication date: 2010-03-31

Abstract

The embodiment of the invention relates to a method for negotiating communication protocol version, a system and equipment thereof. The equipment comprises an access network node and a mobile management network element. The method comprises the following steps: acquiring information of the communication protocol version of a user plane supported by a first node; determining the communication protocol version of the user plane, which is designated to be used, according to the information of the communication protocol version of the user plane supported by the first node; and transmitting the information of the communication protocol version, which is designated to be used, to the first node, and indicating the first node to transmit data with other nodes following the communication protocolversion of the user plane, which is designated to be used. The embodiment of the invention completes data transmission of the user plane among different nodes based on negotiation of the communication protocol version of the user plane in signaling interaction of control planes among different nodes, and obviously improves the effectiveness of negotiation of the communication protocol version ofthe user plane.

Description

Method for negotiating communication protocol version and system and equipment

Technical field

The embodiment of the invention relates to the communication technology, particularly relates to a kind of method for negotiating communication protocol version and system and equipment, belongs to communication technical field.

Background technology

At general packet radio service (General Packet Radio System, hereinafter to be referred as GPRS) and universal mobile telecommunications system (Universal Mobile Telecommunications System, hereinafter to be referred as UMTS) in, general packet radio service tunnel agreement (GPRS Tunnel Protocol is hereinafter to be referred as GTP) is a kind of mobile communication protocol of extensive use.Two GTP protocol versions have been developed at present, i.e. GTP first version (GTP V0) and GTP second version (GTP V1).The message format of these two versions is incomplete same, and use different User Datagram Protoco (UDP) (User DatagramProtocol, be called for short UDP) port, GTP second version (GTP V1) the GTP first version (GTP V0) lower with respect to release level that release level is higher can be supported powerful communication function.

In the prior art, only support the equipment of the lower GTP first version of release level (GTP V0) can not handle the message of following GTP second version (GTP V1); And support the equipment of GTP second version (GTP V1) that release level is higher, can realize the support of the GTP first version lower (GTP V0) to release level.When supporting to communicate between the GTP different editions equipment, usually need to carry out the negotiation of GTP version, so that carry out data communication smoothly.Existing GTP version negotiation mechanism comprises: when the transmitting apparatus of supporting GTP second version (GTP V1) that release level is higher sends a message of following higher-version rank (GTP V1) to a receiving equipment of only supporting the lower GTP first version of release level (GTP V0), if receiving equipment is supported in intercepting of GTP second version (GTP V1) interface, so, receiving equipment can send one " version is not supported " (" Version Not Supported ") message to transmitting apparatus, carry the highest GTP protocol version that this receiving equipment can be supported in this message, i.e. GTP first version (GTP V0).Transmitting apparatus is used GTP first version (GTP V0) instead and is communicated with receiving equipment after receiving above-mentioned message.Existing another kind of GTP protocol version negotiation method is that transmitting apparatus reduces the GTP version automatically, that is: transmitting apparatus sends a message of following higher-version rank (GTP V1) to receiving equipment; When transmitting apparatus did not have receiving equipment not respond in Preset Time, transmitting apparatus just was reduced to lowest version (GTP V0) automatically and communicates with receiving equipment.

The inventor finds in realizing embodiment of the invention process, because the overwhelming majority only supports the receiving equipment of lowest version GTP V0 not intercept at GTP second version (GTP V1) interface, when the higher version message of version levels is followed in the tentative transmission of prior art transmitting apparatus, may can not get the response of receiving equipment; In addition, when having a plurality of protocol version,, exist blindness and can bring more long delay, thereby influence communication quality if transmitting apparatus does not obtain the negotiation mechanism that the receiving equipment response just initiatively reduces the GTP protocol version.In a word, existing version negotiation mechanism can not well realize the version negotiation of communication protocol, has the technological deficiency of user's face communication protocol version negotiation validity difference at least.

Summary of the invention

The embodiment of the invention provides a kind of method for negotiating communication protocol version and system and equipment, in order to improve the validity of user's face communication protocol version negotiation.

The embodiment of the invention provides a kind of method for negotiating communication protocol version, comprising:

Obtain user's face communication protocol version information that first node is supported;

According to user's face communication protocol version information that described first node is supported, determine to specify the user's face communication protocol version that uses;

To specify user's face communication protocol version information of using to send to first node, and indicate described first node to follow and specify the user's face communication protocol version and other nodes that use to carry out transfer of data.

In the method for negotiating communication protocol version that the embodiment of the invention provides, by obtaining user's face communication protocol version information that first node is supported; User's face communication protocol version information according to the first node support, determine to specify the user's face communication protocol version that uses, and user's face communications version agreement and other nodes of indicating first node to follow this appointment use carry out the user side data transmission, thereby in the internodal chain of command Signalling exchange of difference, finish carry out between different nodes user plane data transfer based on the negotiation of user's face communication protocol version, obviously improved the validity of user's face communication protocol version negotiation.

The embodiment of the invention provides a kind of access network node, comprising:

First acquisition module is used to obtain user's face communication protocol version information that other nodes of Access Network are supported;

First negotiation module is used for the user's face communication protocol version information according to described other nodes supports, determines to specify the user's face communication protocol version that uses;

First control module is used for and will specifies user's face communication protocol version information of using to send to described other nodes, and indicates described other nodes and self based on specifying the user's face communication protocol version that uses to carry out the user side data transmission.

In the access network node that the embodiment of the invention provides, obtain user's face communication protocol version information that other nodes of Access Network are supported by first acquisition module; By the user face communication protocol version information of first negotiation module according to other nodes supports of Access Network, determine to specify the user's face communication protocol version that uses, and user's face communications version agreement and other nodes of Access Network of being used based on this appointment by first control module carry out the user side data transmission, thereby solved the protocol version negotiation problem of carrying out user plane data transfer between the access network node of supporting diversity of protocol versions, obviously improved the validity of communication protocol version negotiation.

The embodiment of the invention provides a kind of mobile management network element, comprising:

Second acquisition module is used to obtain user's face communication protocol version information that access network node is supported;

Second negotiation module is used for according to user's face communication protocol version information of described access network node support and the core net gateway information related with described access network node, determines to specify the user's face communication protocol version that uses also to select the core net gateway;

Second control module, be used for and specify user's face communication protocol version information of using to send to described access network node and core net gateway, and indicate described access network node and core net gateway based on specifying the user's face communication protocol version that uses to carry out the user side data transmission.

In the mobile management network element that the embodiment of the invention provides, obtain user's face communication protocol version information that access network node is supported by second acquisition module; Specify the user's face communication protocol version that uses and choose corresponding core net gateway according to determining by second negotiation module, to specify the user's face communication protocol version that uses to send to access network node and core net gateway respectively by second control module, thereby be connected and lay the foundation for setting up effectively business between access network node and the core net gateway, obviously improved the validity that access network node and core net gateway carry out user's face communication protocol version negotiation.

The embodiment of the invention provides another kind of access network node, comprising:

The signaling control module is used for sending user's face communication protocol version information of self supporting to other nodes of Access Network or mobile management network element; Receive other nodes of Access Network or mobile management network element and specify user's face communication protocol version information of use according to described user's face communication protocol version information of self supporting;

Data transmission module is used for specifying the user's face communication protocol version that uses based on other nodes of Access Network, carries out the user side data transmission with other nodes of described Access Network; Perhaps, specify the user's face communication protocol version that uses based on mobile management network element, the core net gateway selected with described mobile management network element carries out the user side data transmission.

In the node that the embodiment of the invention provides, report user's face communication protocol version information of self supporting by the signaling control module, user's face communication protocol version that the appointment that is received according to the signaling control module by data transmission module is used carries out user side data with other nodes of Access Network or core net gateway to be transmitted, carry out the version negotiation problem of user side data transmission between the different nodes of the Access Network of supporting diversity of protocol versions or support the access network node of diversity of protocol versions and the protocol version negotiation problem that the core net gateway carries out the user side data transmission thereby solved, obviously improved the validity of user's face communication protocol version negotiation.

The embodiment of the invention provides a kind of communication protocol version negotiation system, comprises Access Network first node and Access Network Section Point;

Described Access Network first node is used for sending user's face communication protocol version information of self supporting to the Access Network Section Point, when receiving user's face communication protocol version of Access Network Section Point appointment use, communication protocol version based on described appointment is used carries out the user side data transmission with described Access Network Section Point;

Described Access Network Section Point is used for the user's face communication protocol version information according to described Access Network first node support, determines to specify the user's face communication protocol version that uses; To specify user's face communication protocol version information of using to send to described Access Network first node.

In the communication protocol version negotiation system that the embodiment of the invention provides, send the communication protocol version information of self supporting to the Access Network Section Point by the Access Network first node, determine to specify the communication protocol version that uses by the Access Network Section Point, and carry out user side data based on the communication protocol version that this appointment is used with the Access Network first node and transmit, thereby solved the protocol version negotiation problem of carrying out the user side data transmission between the different nodes of the Access Network of supporting diversity of protocol versions, obviously improved the validity of user's face communication protocol version negotiation.

The embodiment of the invention provides another kind of communication protocol version negotiation system, comprises access network node, mobile management network element and core net gateway;

Described access network node is used for sending user's face communication protocol version information of self supporting to described mobile management network element;

Described mobile management network element is used for according to user's face communication protocol version information of described access network node support and the core net gateway information related with described access network node, determines to specify the user's face communication protocol version that uses also to select the core net gateway; To specify user's face communication protocol version information of using to send to described access network node and core net gateway;

User's face communication protocol version and described access network node that described core net gateway is used for using based on described appointment carry out the user side data transmission.

In the communication protocol version negotiation system that the embodiment of the invention provides, report user's face communication protocol version information of self supporting by access network node, determine to specify the user's face communication protocol version that uses and choose corresponding core net gateway according to Access Network by mobile management network element, and will specify the user's face communication protocol version that uses to send to access network node and core net gateway respectively, lay the foundation based on effectively professional connection of foundation between user's face communication protocol version of this appointment use with the core net gateway thereby help access network node, obviously improved the validity that access network node and core net gateway carry out user's face communication protocol version negotiation.

Description of drawings

Fig. 1 is the method for negotiating communication protocol version first embodiment flow chart of the present invention;

Fig. 2 is the application scenarios LTE/SAE system configuration schematic diagram of method for negotiating communication protocol version embodiment of the present invention;

Fig. 3 is the method for negotiating communication protocol version second embodiment flow chart of the present invention;

Fig. 4 is method for negotiating communication protocol version the 3rd an embodiment flow chart of the present invention;

Fig. 5 is method for negotiating communication protocol version the 4th embodiment Signalling exchange figure of the present invention;

Fig. 6 is method for negotiating communication protocol version the 5th embodiment Signalling exchange figure of the present invention;

Fig. 7 is the structural representation of access network node embodiment of the present invention;

Fig. 8 is the structural representation of mobile management network element embodiment of the present invention;

Fig. 9 is the structural representation of the another kind of access network node embodiment of the present invention;

Figure 10 is a communication protocol version negotiation system embodiment structural representation of the present invention;

Figure 11 is the another kind of communication protocol version negotiation system embodiment of the present invention structural representation.

Embodiment

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Fig. 1 is the method for negotiating communication protocol version first embodiment flow chart of the present invention.As shown in Figure 1, present embodiment comprises:

Step 11, obtain user's face communication protocol version information that first node is supported.

Step 12, according to user's face communication protocol version information that described first node is supported, determine to specify the user's face communication protocol version that uses.

Step 13, will specify user's face communication protocol version information of using to send to first node, and indicate described first node to follow and specify the user's face communication protocol version and other nodes that use to carry out transfer of data.

The present embodiment executive agent can be other node devices that are in identical access network with first node, or is in other equipment (as: mobile management network element) of heterogeneous networks with first node.First node and other nodes in user plane data transfer, the version difference of user's face communication protocol of each self-supporting.For example: first node supports GTP user plane protocol (GTP-U) first version (GTP-U Vision 0) to carry out user data transmission, and other nodes that carry out user data transmission with first node are supported the user data transmission of GTP-U second versions (GTP-U Vision 1).

Communicate in the process at different node devices, if two node devices support identical chain of command agreement or two node device chain of command protocol versions to consult to finish, these two node devices can be consulted the communication protocol version of user's face in the signalling interactive process of chain of command; When needs carry out user side data when transmission, user's face communication protocol version that two node devices can be followed to consult carries out transfer of data.

For example: the GTP agreement is divided into chain of command agreement (GTP-C agreement) that is used for control channel and the user plane protocol (GTP-U agreement) that is used for transmitting user data.When two node devices are supported identical chain of command agreement, but support different GTP-U agreements respectively, can in the control signalling interactive process, carry out the negotiation of user's face communication protocol version (GTP-U version), afterwards, carry out user side data communication based on the GTP-U version that consults.

The GTP-U agreement has the different version of rank, and the message format difference of the GTP-U protocol definition of different editions; Accordingly, follow different GTP-U agreement between network node and can realize different functions.Usually, the higher GTP-U agreement of release level is supported the more data communication of power.Present already used GTP protocol version has two: GTP first version (GTP V0) and GTP second version (GTP V1), the third generation partner program of these two version correspondences (3rd Generation PartnershipProject is hereinafter to be referred as 3GPP) protocol number is respectively 3GPP TS 09.60 and 3GPP TS 29.060.The message format of above-mentioned two versions is incomplete same, and uses different User Datagram Protoco (UDP) (UserDatagram Protocol is called for short UDP) port.GTP first version (GTP V0) uses No. 3386 internetworking agreements (Internet Protocol is hereinafter to be referred as IP) port; And No. 2123 IP ports are adopted in the signaling transmission in GTP second version (GTP V1), and user data transmission adopts No. 2152 IP ports.As seen, GTP second version (GTP V1) can be applicable in chain of command signaling transmission and the communication pattern that user plane data transfer is separated.

The inventor finds in realizing embodiment of the invention process, in the prior art because 2123IP port and No. 2152 IP ports that the overwhelming majority is only supported the receiving equipment of GTP first version (GTP V0) not intercept to follow GTP second version (GTP V1), therefore, when the transmitting apparatus of supporting GTP second version (GTP V1) that release level is higher when a receiving equipment of only supporting the lower GTP first version of release level (GTP V0) sends a packet of following higher-version rank (GTP V1), receiving equipment can't receive the packet of highest version GTP V1, thereby under this situation, when the higher edition data bag of version levels is followed in the tentative transmission of transmitting apparatus, transmitting apparatus can't obtain the response (as: version is not supported (" Version Not Supported ") message) of receiving equipment.In addition, in the prior art, if when transmitting apparatus does not receive the response message that receiving equipment returns in Preset Time, transmitting apparatus just initiatively reduces the protocol version that message is followed, and follows the packet of GTP first version (GTP V0) to the receiving equipment transmission.But, when there is multiple version in the GTP agreement, transmitting apparatus is when the GTP protocol version information that unknown receiving equipment can be supported, transmitting apparatus initiatively reduces the blindness of the GTP protocol version that message follows, it is longer to cause transmitting apparatus and receiving equipment to set up the professional time delay that is connected, thereby reduces communication quality.This shows that the validity of existing communication protocol negotiation mechanism is relatively poor.Can predict, GTP protocol version constantly upgrading is a trend of development communication technologies, GTP agreement more highest version (as: the GTP third edition this (GTP version2), GTP the 4th version (GTP version3) or the like) may be released successively to satisfy the demand of high quality communication, in the communication network of various communications protocols version coexistence, there is the technical need of more effective method for negotiating communication protocol version.

Be different from the machinery of consultation of prior art GTP protocol version, the embodiment of the invention is by carrying out user's face at chain of command (for example: the GTP-U) negotiation of protocol version.Practical application shows, if chain of command Signalling exchange passage is got through between node situations such as (as:) adopting between node that the version of communication of identical chain of command communication protocol or communication protocol has been consulted to finish, finishing user's face communication protocol version negotiation between node by chain of command Signalling exchange between node, is the effective ways that solve user's face communication protocol version negotiation between node.Embodiment of the invention method for negotiating communication protocol version has obtained user's face communication protocol version information that first node is supported in the signalling interactive process of chain of command; Afterwards, user's face communication protocol version information according to the first node support, determine to specify the user's face communication protocol version that uses, and user's face communications version agreement and the first node of following this appointment use carry out the user side data transmission, thereby between node, finish in the chain of command Signalling exchange carry out between node user plane data transfer based on the negotiation of communication protocol version, solved between the node of supporting different user face communication protocol version and communicated the protocol version negotiation problem, avoid the blindness of transmitting apparatus adjustment user face communication protocol, obviously improved the validity of user's face communication protocol version negotiation.

Fig. 2 is the application scenarios LTE/SAE system configuration schematic diagram of method for negotiating communication protocol version embodiment of the present invention.

As shown in Figure 2, the wireless access network Long Term Evolution of 3GPP (Long Term Evolution, hereinafter to be referred as LTE) in the project, follow-on mobile Access Network is called as universal mobile telecommunications system grounding wireless access network (the Evolved UMTS Terrestrial Radio Access Network of evolution, hereinafter to be referred as E-UTRAN), one of employed capital equipment of this Access Network is base station (or being called access network node, Evolved Node B, abbreviation eNB).In E-UTRAN, communicate to connect (not shown) by X2 interface between the different eNB, form grid (Mesh) type network.X2 interface comprises interface in the user plane and chain of command interface in logic; Wherein, X2 chain of command interface (being called for short the X2-C interface) is followed the dedicated signaling part X2-AP agreement of X2 interface; X2 interface in the user plane (being called for short the X2-U interface) is followed the user plane protocol (hereinafter to be referred as GTP-U) of GTP, is used for transmitting on the IP transport layer user data etc.In the System Architecture Evolution of 3GPP (System Architecture Evolution is hereinafter to be referred as the SAE) project, follow-on mobile core network is called as the packet-based core networks (Evolved Packet Core is hereinafter to be referred as EPC) of evolution.In EPC, mobile management network element (Mobility Management Entity, hereinafter to be referred as MME) be a control plane/user's facial canal reason entity, be responsible for mobile subscriber terminal (UserEquipment, hereinafter to be referred as UE) location management, connection management, safety certification, gateway select or the like, wherein gateway selects to comprise gateway (Serving Gateway, hereinafter to be referred as S-GW) select and packet data network gateway selection (Packet Data Network Gateway is hereinafter to be referred as P-GW).S-GW is that the local access network of UE closes, and is responsible for transmission, forwarding and the route switching etc. of UE user face data; P-GW is the gateway of UE access external data network.S-GW and P-GW are two logic entities, may reside on the same or different physical entities.

EPC and E-UTRAN have formed the grouping system (Evolved Packet System is hereinafter to be referred as EPS) of evolution jointly.As shown in Figure 2, the base station of E-UTRAN (eNB) is connected to EPC by the S1 interface, and wherein the communication interface between eNB and the MME is a S1-MME interface, follows the S1-AP agreement and communicates; MME and S-GW are the S11 interface, and the chain of command agreement (hereinafter referred to as the GTP-C agreement) of following GTP communicates, and between MME and the S-GW all the GTP-C agreement based on identical version carry out Signalling exchange; Interface between eNB and the S-GW is called the interface in the user plane (hereinafter referred to as S1-U interface) of S1, and the user plane protocol (GTP-U agreement) of following GTP communicates, and is used to transmit user data and corresponding user's face control frame.S1-MME interface and S1-U interface can be regarded the chain of command interface and the interface in the user plane of S1 interface respectively as.As seen, realized the separating of chain of command and user face between MME and the gateway among the EPS.

By above-mentioned introduction to LTE/SAE as can be known, the GTP agreement has obtained using widely in the next generation mobile communication technology of 3GPP; And in the LTE/SAE network architecture, because the GTP edition upgrading, the distinct device Upgrade process differs, between network element (as: between the different eNB, between eNB and the S-GW etc.) may there be the technical need of carrying out user's face communication protocol GTP-U version negotiation.Embodiment below respectively is described in detail in detail all is with application scenarios shown in Figure 2 is example, illustrates that the embodiment of the invention carries out the technical scheme of GTP-U version negotiation.

Fig. 3 is the method for negotiating communication protocol version second embodiment flow chart of the present invention.In conjunction with application scenarios shown in Figure 2, present embodiment is used to realize the negotiation of user's face communication protocol version between the Access Network different base station (eNB), realizes the negotiation of GTP-U communication protocol version between the different e NB among the EUTRAN that is:.Access Network first base station is eNB among the EUTRAN; Access Network second base station is another eNB among the EUTRAN; Access Network first base station and Access Network second base station communicate to connect by X2 interface.X2 interface comprises interface in the user plane and chain of command interface in logic; Wherein, X2 chain of command interface (being called for short the X2-C interface) is followed the X2-AP agreement; X2 interface in the user plane (being called for short the X2-U interface) is followed the user plane protocol (GTP-U) of GTP, is used for transmitting on the IP transport layer user data etc.As shown in Figure 3, present embodiment comprises:

Step 31, Access Network first base station are to Access Network second base station transmitting apparatus connection request (X2 SetupRequest) message, comprise the GTP-U version information that Access Network first base station is supported in this equipment connection request message, and this equipment connection request message is followed the X2-AP agreement.

This equipment connection request message is resolved in step 32, Access Network second base station, obtains the GTP-U version information that Access Network first base station is supported.

The GTP-U version that uses is determined to specify in step 33, Access Network second base station, and this specifies the GTP-U version that uses to be the common GTP-U version of supporting in Access Network first base station and Access Network second base station.

If Access Network second base station finds, when the common GTP-U version of supporting in Access Network second base station and Access Network first base station had a plurality of version, Access Network second base station GTP-U version that rank in a plurality of versions is higher was as specifying the GTP-U version that uses.For example: the GTP-U version that Access Network first base station and Access Network second base station are all supported comprises GTP-U first version (GTP-U Version 0) and GTP-U second version (GTP-U Version 1), and then Access Network second base station selected GTP-U second version (GTP-UVersion 1) is as specifying the GTP-U version that uses.

Step 34, Access Network second base station are to Access Network first base station transmitting apparatus connection response (X2 SetupResponse) message, this equipment connection response message comprises the GTP-U version information that the appointment of Access Network second base station is used, and this equipment connection response message is followed the X2-AP agreement.

Step 35, Access Network first base station obtain Access Network second base station and specify the GTP-U version information that uses, and carry out the user side data transmission based on GTP-U version and Access Network second base station that this appointment is used.

Present embodiment shows Access Network first base station when the Access Network second base station transmitting apparatus connection request message, carries the GTP-U version information of supporting Access Network first base station self and give Access Network second base station in equipment connection request message; In addition, Access Network first base station also can be notified to Access Network second base station with the GTP-U version information of self supporting by business request information or other Signalling exchange message; Repeat no more.

Present embodiment be by in Access Network first base station and Access Network second base station when following the X2-AP agreement and carry out the chain of command Signalling exchange, user's face communication protocol GTP-U version information that Access Network first base station is supported in Access Network first base station sends to Access Network second base station, by Access Network second base station from the common GTP-U version of supporting in Access Network first base station and Access Network second base station, choose a GTP-U version and specify the GTP-U version that uses as carrying out user plane data transfer, the GTP-U version that this appointment is used sends to Access Network first base station, and carries out the user side data transmission based on GTP-U version and Access Network first base station that this appointment is used; Thereby solved between the node of supporting different user face protocol version and communicated the protocol version negotiation problem, obviously improved the validity of user's face communication protocol version negotiation; In addition, when the common GTP-U version of supporting has a plurality of version from Access Network first base station and Access Network second base station in Access Network second base station, as: comprise the GTP-U third edition this (GTP-U V2), GTP-U second version (GTP-U V1) and GTP-U first version (GTP-U V0), Access Network second base station (for example preassigned strategy of operator) according to actual needs selects the higher GTP-U third edition of release level this (GTP-U V2) as specifying the user's face communication protocol version that uses, in order to support more powerful data-transformation facility, effectively avoided the blindness of transmitting apparatus adjustment user face communication protocol.

Fig. 4 is method for negotiating communication protocol version the 3rd an embodiment flow chart of the present invention.The difference of present embodiment and method for negotiating communication protocol version of the present invention first embodiment is, present embodiment is in the chain of command Signalling exchange of Access Network first base station and mobile management network element, finishes between Access Network first base station (eNB) and the core net gateway version negotiation about user's face communication protocol.Present embodiment Access Network first base station (eNB) is embodiment of the invention first node; The core net gateway is other nodes of the embodiment of the invention.Mobile management network element and Access Network first base station (eNB) and core net gateway are controlled the mutual of signaling; The user side data transmission is carried out with the core net gateway in Access Network first base station (eNB).As shown in Figure 4, present embodiment comprises:

Step 41, access network base stations (eNB) are to mobile management network element (MME) transmitting apparatus connection request (S1 Setup Request) message, comprise the GTP-U version information that Access Network first base station (eNB) is supported in this equipment connection request message, and this equipment connection request message is followed the S1-AP agreement.

Step 42, mobile management network element (MME) are resolved this equipment connection request message, obtain the GTP-U version information that access network base stations (eNB) is supported.

Step 43, mobile management network element (MME) are according to the GTP-U version information of access network base stations (eNB) support and the core net gateway information related with access network base stations, determine to specify the GTP-U version that uses and select the core net gateway GTP-U version that the core net gateway of selecting is related with access network base stations (eNB) and the support appointment is used.

In actual applications, mobile management network element (MME) can be determined earlier to specify the GTP-U version that uses, afterwards in the selection of carrying out the core net gateway; Perhaps, mobile management network element (MME) can be taken all factors into consideration the GTP-U protocol version information of core net gateway related with access network base stations (eNB) and access network base stations (eNB) support, determine to specify GTP-U version and the core net gateway that uses, that is: mobile management network element is finished the selection of determining of GTP-U version and core net gateway synchronously.The benefit of handling (mobile management network element (MME) finishes the GTP-U version synchronously and the core net gateway is selected) like this is, avoid mobile management network element (MME) unilaterally to determine to specify after the GTP-U version that uses, related with access network base stations (eNB) and support that the core net gateway of the GTP-U version that this appointment is used is may load too heavy, MME just can not select this core net gateway under this situation, thereby causes the core net gateway to choose failure.This core net gateway can be gateway (S-GW), or is integrated with the core net gateway of gateway (S-GW) and packet data network gateway (P-GW) function.

Step 44, mobile management network element (MME) will specify the GTP-U version information that uses to send to access network base stations (eNB) and core net gateway respectively; Wherein, mobile management network element MME can follow the S1-AP agreement, sends to access network base stations (eNB) and specifies the GTP-U version information that uses; Mobile management network element MME can follow the GTP-C agreement, sends to the core net gateway and specifies the GTP-U version information that uses.

Step 45, access network base stations (eNB) are specified the GTP-U version that uses with the core net gateway based on this, carry out the user side data transmission.

Present embodiment shows access network base stations when mobile management network element transmitting apparatus connection request message, carries the GTP-U version information of access network base stations self support and give mobile management network element in equipment connection request message; In addition, access network base stations also can be notified to mobile management network element with the GTP-U version information of self supporting by business request information or other Signalling exchange message; Repeat no more.

Present embodiment is by carrying out device level in mobile management network element (MME) and access network base stations (eNB) when being connected, user's face communication protocol GTP-U version information that access network base stations (eNB) reports access network base stations (eNB) to support to mobile management network element (MME); Afterwards, determine to specify the GTP-U version that uses by mobile management network element (MME), choose core net gateway related with access network base stations (eNB) and the GTP-U version that the support appointment is used, access network base stations (eNB) is specified the GTP-U version that uses with the core net gateway based on this, carries out the user side data transmission; Thereby obviously improved the validity that access network base stations and core net gateway carry out user's face communication protocol version negotiation.

Fig. 5 is method for negotiating communication protocol version the 4th embodiment Signalling exchange figure of the present invention.The difference of present embodiment and method for negotiating communication protocol version of the present invention the 3rd embodiment is, present embodiment is at access network base stations (eNB) and mobile management network element (MME) when apparatus for establishing is connected, determine to specify the version of user's face communication protocol of using and be handed down to access network base stations (eNB), when access network base stations (eNB) and mobile management network element (MME) are set up professional the connection, mobile management network element (MME) is selected the core net gateway, and will specify the version of user's face communication protocol of using to send to selected core net gateway.As shown in Figure 5, present embodiment comprises:

Step 51, access network base stations (eNB) comprise the GTP-U version information that access network base stations (eNB) is supported to mobile management network element (MME) transmitting apparatus connection request (S1 Setup Request) message in this equipment connection request message.This equipment connection request message is followed the S1-AP agreement.

Step 52, mobile management network element (MME) are resolved this equipment connection request message, obtain the GTP-U version information that access network base stations (eNB) is supported; And, when choosing access network base stations (eNB) and carrying out user plane data transfer, specify the GTP-U version information that uses with the core net gateway according to the GTP-U version information that access network base stations (eNB) is supported.

Mobile management network element (MME) can be taken all factors into consideration the default control strategy (this control strategy can be pre-determined by operator etc.) and the GTP-U version information of access network base stations (eNB) support and make one's options when the GTP-U version information that determine to specify uses.For example: the preassigned control strategy of operator is: guarantee professional the connection under the prerequisite, the higher communication protocol of preferred, users face communication protocol version rank is as the communication protocol of user plane data transfer.When access network base stations (eNB) is supported a plurality of GTP-U versions, as: GTP-U V0 and GTP-U V1, whether there is core net gateway related with access network base stations (eNB) and the GTP-U V1 that the support release level is higher in mobile management network element (MME) the inquiry core net, if have, mobile management network element (MME) determines that the higher GTP-U V1 of release level agreement is as specifying user's face communication protocol of using; If no, mobile management network element (MME) determines that the low GTP-U V0 agreement of release level is as specifying user's face communication protocol of using.

Step 53, mobile management network element (MME) are to access network base stations (eNB) transmitting apparatus connection response (S1 Setup Response) message, comprise the GTP-U version information that mobile management network element (MME) appointment is used in this equipment connection response message, this device responds request message is followed the S1-AP agreement.

Present embodiment has been finished mobile management network element (MME) by step 51-step 53 and has been connected with the device level of access network base stations (eNB), and the GTP-U version information that the appointment that mobile management network element (MME) can be issued on the access network base stations (eNB) is used is stored.It will be appreciated by those skilled in the art that, mobile management network element (MME) is connected with access network base stations (eNB) apparatus for establishing level, be that mobile management network element (MME) is set up the prerequisite that is connected with subscriber equipment (UE) corresponding business with access network base stations (eNB), but mobile management network element (MME) is connected with the device level of access network base stations (eNB), might not trigger mobile management network element (MME) and set up the flow process that is connected with subscriber equipment (UE) corresponding business with access network base stations (eNB).Under certain condition, for example: when subscriber equipment is initiated service connection request by access network base stations (eNB) or when the service connection request of user device responsive core net, can trigger the flow process that is connected with subscriber equipment (UE) corresponding business, execution in step 54-step 512.

Step 54, subscriber equipment (UE) initiate to eat dishes without rice or wine connection request to the access network base stations (eNB) related with this subscriber equipment (UE), are used to ask access network base stations (eNB) to connect the distribution interface-free resources for the business of subscriber equipment (UE).

Step 55, access network base stations (eNB) send and the related business request information of subscriber equipment (UE) to mobile management network element (MME).This business request information can comprise: request message (Init Context setup), handoff request (handover request) or path changing request message message such as (path switch request) set up in context.Business request information is followed the S1-AP agreement.

The GTP-U version information that step 56, mobile management network element (MME) use according to the appointment that step 52 is determined is chosen core net gateway related with access network base stations (eNB) and the GTP-U version that the support appointment is used.

When satisfying the core net gateway to choose the core net gateway of condition (that is: the core net gateway of and the GTP-U version that support to specify use related with access network base stations (eNB)) be a plurality of, mobile management network element (MME) can be chosen one of them core net gateway according to the control strategy that pre-establishes, and according to address stored information in advance, obtain the address information of this core net gateway, execution in step 58.If when not storing the address information of this core net gateway on the mobile management network element (MME), execution in step 57.

Step 57, mobile management network element (MME) are to domain name system (Domain Name System, being called for short DNS) server (DNS Server) sends the address lookup request of the address information that is used for the core net gateway that query steps 56 chooses, and is used for mobile management network element (MME) is inquired about IP address information etc. from this core net gateway to dns server as: this query requests; After dns server receives this query requests, the IP address information of core net gateway is sent to mobile management network element (MME).

Step 58, mobile management network element (MME) send carrying to the corresponding core net gateway of address information that obtains with step 56 or step 57 and set up request, and the GTP-U release protocol that carries the appointment use that step 52 determines in the request is set up in this carrying; The GTP-C agreement is followed in this carrying request of setting up.

Step 59, core net gateway receive and carry when setting up request, for subscriber equipment (UE) is created bearing resource, after the establishment of finishing bearing resource, send the affirmation carrying to mobile management network element (MME) and set up message.This affirmation carrying is set up message and is followed the GTP-C agreement.

Step 510, mobile management network element (MME) send to confirm to connect to access network base stations (eNB) sets up message.This affirmation connection is set up message and can be comprised: response message (Init ContextSetup Ack), Handover Request Acknowledge (handover request Ack) or path changing request response message such as (path switch request Ack) set up in context.The affirmation connection is set up message and is followed the S1-AP agreement.

Step 511, access network base stations (eNB) send to subscriber equipment (UE) to be confirmed to eat dishes without rice or wine to connect to set up message.

Step 512, access network base stations (eNB) and the GTP-U version that the core net gateway uses based on appointment in the step 52 are carried out the user side data transmission (transfer of data that comprise uplink and downlink) relevant with subscriber equipment (UE).

When present embodiment is connected by carry out device level in mobile management network element (MME) and access network base stations (eNB), finish the negotiation of the employed GTP-U version of user plane data transfer, and during to access network base stations (eNB) transmitting apparatus connection response, will specify the GTP-U version information notice access network base stations of using (eNB) at mobile management network element (MME); And connect when setting up when carrying out the relevant business of subscriber equipment, mobile management network element specifies the GTP-U version that uses to select the core net gateway according to this, to specify the GTP-U agreement of using to send to the core net gateway of choosing, make core net gateway and access network base stations (eNB) based on specifying the GTP-U version that uses to carry out the user side data transmission.Because when mobile management network element (MME) is chosen the core net gateway, taken all factors into consideration user's face communication protocol version information of access network base stations and each self-supporting of core net gateway, therefore, lay the foundation effectively professional the connection for setting up between access network base stations and the core net gateway, obviously improved the validity that access network base stations and core net gateway carry out user's face communication protocol version negotiation.

Fig. 6 is method for negotiating communication protocol version the 5th embodiment Signalling exchange figure of the present invention.The difference of present embodiment and method for negotiating communication protocol version of the present invention the 4th embodiment is, when apparatus for establishing was connected, access network base stations (eNB) reported the GTP-U version information of self supporting to present embodiment to mobile management network element (MME) at access network base stations (eNB) and mobile management network element (MME); When access network base stations (eNB) is initiated and subscriber equipment (UE) when corresponding business is connected flow process to mobile management network element (MME), mobile management network element (MME) is determined to specify the GTP-U version that uses and choose the core net gateway that satisfies condition, and sends the GTP-U version information that appointment is used to access network base stations (eNB) and core net gateway.As shown in Figure 6, present embodiment comprises:

Step 61, access network base stations (eNB) comprise the GTP-U version information that access network base stations (eNB) is supported to mobile management network element (MME) transmitting apparatus connection request (S1 Setup Request) message in this equipment connection request message.This equipment connection request message is followed the S1-AP agreement.

Step 62, mobile management network element (MME) are resolved this equipment connection request message, obtain the GTP-U version information that access network base stations (eNB) is supported.

Step 63, mobile management network element (MME) are to access network base stations (eNB) transmitting apparatus connection response (S1 Setup Response) message, and this device responds request message is followed the S1-AP agreement.

Step 64, when subscriber equipment is initiated service connection request by access network base stations (eNB) or when the service connection request of user device responsive core net, subscriber equipment (UE) initiates to eat dishes without rice or wine connection request to the access network base stations (eNB) related with this subscriber equipment (UE), is used to ask access network base stations (eNB) to connect the distribution interface-free resources for the business of subscriber equipment (UE).

Step 65, access network base stations (eNB) send and the related business request information of subscriber equipment (UE) to mobile management network element (MME).This business request information can comprise: request message (Init Context setup), handoff request (handover request) or path changing request message message such as (path switch request) set up in context.Business request information is followed the S1-AP agreement.

The GTP-U version information that the access network base stations (eNB) that step 66, mobile management network element (MME) obtain according to step 62 is supported, determine to specify the GTP-U version that uses when access network base stations (eNB) and core net are carried out the user face data exchange, choose related and support the core gateway of this appointment use GTP-U version with access network base stations (eNB).

When satisfying the core net gateway to choose the core net gateway of condition (that is: the core net gateway of and the GTP-U version that support to specify use related with access network base stations (eNB)) be a plurality of, mobile management network element (MME) can be chosen one of them core net gateway according to the control strategy that pre-establishes, and according to address stored information in advance, obtain the address information of this core net gateway, execution in step 68; If when not storing the address information of this core net gateway on the mobile management network element (MME), execution in step 67.

Step 67, mobile management network element (MME) are to domain name system (Domain Name System, being called for short DNS) server (DNS Server) sends the address lookup request of the address information that is used for the core net gateway that query steps 66 chooses, and is used for mobile management network element (MME) is inquired about IP address information etc. from this core net gateway to dns server as: this query requests; After dns server receives this query requests, the IP address information of core net gateway is sent to mobile management network element (MME).

Step 68, mobile management network element (MME) send carrying to the corresponding core net gateway of address information that obtains with step 66 or step 67 and set up request, and the GTP-U release protocol that carries the appointment use that step 66 determines in the request is set up in this carrying; The GTP-C agreement is followed in this carrying request of setting up.

Step 69, core net gateway receive and carry when setting up request, for subscriber equipment (UE) is created bearing resource, after the establishment of finishing bearing resource, send the affirmation carrying to mobile management network element (MME) and set up message.This affirmation carrying is set up message and is followed the GTP-C agreement.

Step 610, mobile management network element (MME) send to confirm to connect to access network base stations (eNB) sets up message.This affirmation connects sets up the GTP-U release protocol that message carries the definite appointment use of step 66; The S1-AP agreement is followed in this carrying request of setting up.This affirmation connection is set up message and can be comprised: response message (Init Context Setup Ack), Handover Request Acknowledge (handover requestAck) or path changing request response message such as (path switch request Ack) set up in context.The affirmation connection is set up message and is followed the S1-AP agreement.

Step 611, access network base stations (eNB) send to subscriber equipment (UE) to be confirmed to eat dishes without rice or wine to connect to set up message.

Step 612, access network base stations (eNB) and the GTP-U version that the core net gateway uses based on appointment in the step 66 are carried out the user side data transmission (transfer of data that comprise uplink and downlink) relevant with subscriber equipment (UE).

Present embodiment is by carrying out device level when being connected at mobile management network element (MME) in self and access network base stations (eNB), obtains the information of the GTP-U version that access network base stations (eNB) supports; Connect when setting up when carrying out the relevant business of subscriber equipment, mobile management network element is according to the information of the GTP-U version of access network base stations (eNB) support, determine to specify the GTP-U version that uses, and select the core net gateway according to this GTP-U version that specify to use, to specify the GTP-U agreement of using to send to core net gateway and the access network base stations of choosing (eNB), make core net gateway and access network base stations (eNB) based on specifying the GTP-U version that uses to carry out the user side data transmission.Since mobile management network element (MME) with the signalling interactive process of access network base stations chain of command in, taken all factors into consideration user's face communication protocol version information of access network base stations and the core net gateway related with access network base stations, determine to specify GTP-U version and the core net gateway that uses, therefore, lay the foundation effectively professional the connection for setting up between access network base stations and the core net gateway, obviously improved the validity that access network base stations and core net gateway carry out user's face communication protocol version negotiation.

Fig. 7 is the structural representation of access network node embodiment of the present invention.As shown in Figure 7, the present embodiment access network node comprises: first acquisition module 71, first negotiation module 72 and first control module 73.

First acquisition module 71 is used to obtain user's face communication protocol version information that other nodes of Access Network are supported.

First negotiation module 72 is used for the user's face communication protocol version information according to other nodes supports of Access Network, determines to specify the user's face communication protocol version that uses.

First control module 73 is used for and will specifies user's face communication protocol version information of using to send to other nodes of Access Network, and indicates described other nodes and self based on specifying the user's face communication protocol version that uses to carry out the user side data transmission.

Present embodiment obtains user's face communication protocol version information that other nodes of Access Network are supported by first acquisition module; By the user face communication protocol version information of first negotiation module according to other nodes supports of Access Network, determine to specify the user's face communication protocol version that uses, and user's face communications version agreement and other nodes of Access Network of being used based on this appointment by first control module carry out the user side data transmission, thereby solved the protocol version negotiation problem of carrying out user plane data transfer between the access network node of supporting diversity of protocol versions, obviously improved the validity of communication protocol version negotiation.

Can repeat no more referring to the record of the corresponding embodiment of method for negotiating communication protocol version Fig. 3 of the present invention with the interaction flow of other nodes of Access Network about the present embodiment access network node.

Fig. 8 is the structural representation of mobile management network element embodiment provided by the invention.As shown in Figure 8, the present embodiment mobile management network element comprises: second acquisition module 81, second negotiation module 82 and second control module 83.

Second acquisition module 81 is used to obtain user's face communication protocol version information that access network node is supported.

Second negotiation module 82 is used for according to user's face communication protocol version information of access network node support and the core net gateway information related with access network node, determines to specify the user's face communication protocol version that uses also to select the core net gateway.

Second control module 83 is used for specifying user's face communication protocol version information of using to send to access network node and core net gateway, and indicates access network node and core net gateway based on specifying the user's face communication protocol version that uses to carry out the user side data transmission.

On the basis of technique scheme, the present embodiment mobile management network element also can comprise: consult trigger module 84.

Consulting trigger module 84 is used for activating second negotiation module 82 when equipment connection request that receives described access network node transmission or service connection request.

Further, second acquisition module 81 can comprise: receiving element 811 and resolution unit 812.

Receiving element 811 is used to receive equipment connection request or the service connection request that described access network node sends, and described equipment connection request or service connection request comprise user's face communication protocol version information that described access network node is supported.

Resolution unit 812 is used for obtaining user's face communication protocol version information that described access network node is supported according to described equipment connection request or service connection request.

Second control module 83 can comprise: first sends indicating member 831 and second sends indicating member 832.

First sends indicating member 831 is used for to described access network node transmitting apparatus connection response the time, user's face communication protocol version information that described appointment is used sends to described access network node, and indicates described access network node and core net gateway based on specifying the user's face communication protocol version that uses to carry out the user side data transmission; Perhaps

Second sends indicating member 832 is used for when described access network node sends the service request acknowledge message, and user's face communication protocol version information that described appointment is used sends to described access network node; And indicate described access network node and core net gateway based on specifying the user's face communication protocol version that uses to carry out the user side data transmission.

Second control module 83 also can comprise: memory cell 833 and query unit 834; Perhaps, second control module 83 also can comprise: acquiring unit 835.

Memory cell 833 is used to store the address information of the core net gateway related with access network node.

Query unit 834 is used for when receiving the service connection request that access network node sends, and obtains the address information of core net gateway to memory cell 833, the address information of obtaining is sent to first send indicating member 831 or second and send indicating member 832.

Acquiring unit 835 is used for when receiving the service connection request of access network node transmission, obtain the address information of described core net gateway to domain name system server, described address information is sent to first send indicating member 831 or second and send indicating member 832.

Present embodiment obtains user's face communication protocol version information that access network node is supported by second acquisition module; By the user face communication protocol version information of second negotiation module according to the access network node support, determine to specify the user's face communication protocol version that uses and choose corresponding core net gateway, to specify the user's face communication protocol version that uses to send to access network node and core net gateway respectively by second control module again, thereby be connected and lay the foundation for setting up effectively business between access network node and the core net gateway, obviously improved the validity that access network node and core net gateway carry out user's face communication protocol version negotiation.Can repeat no more referring to the record of the corresponding embodiment of method for negotiating communication protocol version Fig. 4-6 of the present invention about the interaction flow of present embodiment with network elements such as access network node, core net gateways.

Fig. 9 is the structural representation of the another kind of access network node embodiment of the present invention.As shown in Figure 9, the present embodiment access network node comprises: signaling control module 91 and data transmission module 92.

Signaling control module 91 is used for sending user's face communication protocol version information of self supporting to other nodes of Access Network or mobile management network element; Receive other nodes of Access Network or mobile management network element and specify user's face communication protocol version information of use according to described user's face communication protocol version information of self supporting.

Data transmission module 92 is used for specifying the user's face communication protocol version that uses based on other nodes of Access Network, carries out the user side data transmission with other nodes of described Access Network; Perhaps, specify the user's face communication protocol version that uses based on mobile management network element, the core net gateway selected with described mobile management network element carries out the user side data transmission.

Present embodiment reports user's face communication protocol version information of self supporting by the signaling control module, and carry out user side data by user's face communication protocol version that the appointment that data transmission module receives according to the signaling control module is used with other nodes of Access Network or core net gateway and transmit, carry out the version negotiation problem of user side data transmission between the different nodes of the Access Network of supporting diversity of protocol versions or support the access network node of diversity of protocol versions and the protocol version negotiation problem that the core net gateway carries out the user side data transmission thereby solved, obviously improved the validity of user's face communication protocol version negotiation.Can be about the present embodiment and the interaction flow of other nodes of Access Network referring to the record of the corresponding embodiment of method for negotiating communication protocol version Fig. 3 of the present invention, the interaction flow of present embodiment and mobile management network element and core net gateway can repeat no more referring to the record of method for negotiating communication protocol version Fig. 4-6 of the present invention.

Figure 10 is a communication protocol version negotiation system embodiment structural representation of the present invention.As shown in figure 10, present embodiment communication protocol negotiating system comprises Access Network first node 101 and Access Network Section Point 102.

Access Network first node 101 is used for sending user's face communication protocol version information of self supporting to Access Network Section Point 102, when receiving user's face communication protocol version of Access Network Section Point 102 appointment uses, communication protocol version based on described appointment is used carries out the user side data transmission with Access Network Section Point 102.

Access Network Section Point 102 is used for the user's face communication protocol version information according to 101 supports of Access Network first node, determines to specify the user's face communication protocol version that uses; To specify user's face communication protocol version information of using to send to Access Network first node 101.

Present embodiment sends the communication protocol version information of self supporting by the Access Network first node to the Access Network Section Point, determine to specify the communication protocol version that uses by the Access Network Section Point, and carry out user side data based on the communication protocol version that this appointment is used with the Access Network first node and transmit, thereby solved the protocol version negotiation problem of carrying out the user side data transmission between the different nodes of the Access Network of supporting diversity of protocol versions, obviously improved the validity of user's face communication protocol version negotiation.In present embodiment, the Access Network first node can repeat no more referring to the record of the corresponding embodiment of method for negotiating communication protocol version Fig. 3 of the present invention with the interaction flow of Access Network Section Point.

Figure 11 is the another kind of communication protocol version negotiation system embodiment of the present invention structural representation.Present embodiment comprises access network node 111, mobile management network element 112 and core net gateway 113.

Access network node 111 is used for sending user's face communication protocol version information of self supporting to mobile management network element 112.

Mobile management network element 112 is used for the user's face communication protocol version information supported according to access network node 111 and the core net gateway information related with access network node 111, determines to specify the user's face communication protocol version that uses also to select core net gateway 113; To specify user's face communication protocol version information of using to send to access network node 111 and core net gateway 113.

Core net gateway 113 is used for specifying the user's face communication protocol version and the access network node 111 that use to carry out the user side data transmission based on mobile management network element 112.

Present embodiment reports user's face communication protocol version information of self supporting by access network node, by the user face communication protocol version information of mobile management network element according to the access network node support, determine to specify the user's face communication protocol version that uses and choose corresponding core net gateway, and will specify the user's face communication protocol version that uses to send to access network node and core net gateway respectively, lay the foundation based on effectively professional connection of foundation between user's face communication protocol version of this appointment use with the core net gateway thereby help access network node, obviously improved the validity that access network node and core net gateway carry out user's face communication protocol version negotiation.Can repeat no more referring to the record of the corresponding embodiment of method for negotiating communication protocol version Fig. 4-6 of the present invention about the interaction flow between present embodiment access network node, mobile management network element and the core net gateway.

Other nodes of access network node that the embodiment of the invention is mentioned or Access Network can be the base station kind equipments, as the eNB in the LTE project on specific implementation; Can also be the non-base station of Access Network kind equipment, as: (the Radio Network Controller of the radio network controller in the 3G network; Be called for short RNC) etc.In addition, other nodes of access network node and Access Network can be same device type or non-same category of device.

One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of a preferred embodiment, and module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.

One of ordinary skill in the art will appreciate that: the module in the device among the embodiment can be described according to embodiment and be distributed in the device of embodiment, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.

It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that previous embodiment is put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of embodiment of the invention technical scheme.

Claims

1, a kind of method for negotiating communication protocol version is characterized in that, comprising:

2, method for negotiating communication protocol version according to claim 1 is characterized in that, described user's face communication protocol is GPRS tunnel user plane agreement.

3, method for negotiating communication protocol version according to claim 1 and 2 is characterized in that, described first node comprises Access Network first base station; Described other nodes comprise Access Network second base station.

4, method for negotiating communication protocol version according to claim 1 and 2 is characterized in that, described first node comprises access network base stations, and described other nodes comprise the core net gateway; Described user's face communication protocol version information of supporting according to described first node, determine to specify the user's face communication protocol version that uses to comprise:

According to user's face communication protocol version information of described access network base stations support and the core net gateway information related, determine to specify the user's face communication protocol version that uses also to select the core net gateway with described access network base stations.

5, method for negotiating communication protocol version according to claim 4 is characterized in that, after the described selection core net gateway, also comprises:

To specify user's face communication protocol version information of using to send to described core net gateway.

6, method for negotiating communication protocol version according to claim 5 is characterized in that, described user's face communication protocol version information of obtaining the first node support comprises:

Receive equipment connection request or service connection request that described access network base stations sends, described equipment connection request or service connection request comprise user's face communication protocol version information that described access network base stations is supported;

Obtain user's face communication protocol version information that described access network base stations is supported according to described equipment connection request or service connection request.

7, method for negotiating communication protocol version according to claim 6 is characterized in that, the described user's face communication protocol version information used of will specifying sends to first node, comprising:

To described access network base stations transmitting apparatus connection response, perhaps when described access network base stations sends the service request acknowledge message, user's face communication protocol version information that described appointment is used sends to described access network base stations.

8, method for negotiating communication protocol version according to claim 6 is characterized in that, the described user's face communication protocol version information used of will specifying sends to the core net gateway, comprising:

When receiving the service connection request that described access network base stations sends and storing the address information of core net gateway in advance, user's face communication protocol version information that described appointment is used sends to and the corresponding core net gateway of described address information; Perhaps

When receiving the service connection request of described access network base stations transmission, obtain the address information of described core net gateway to domain name system server, user's face communication protocol version information that described appointment is used sends to and the corresponding core net gateway of described address information.

9, a kind of access network node is characterized in that, comprising:

First negotiation module is used for the user's face communication protocol version information according to other nodes supports of described Access Network, determines to specify the user's face communication protocol version that uses;

First control module, be used for and specify user's face communication protocol version information of using to send to other nodes of described Access Network, and indicate other nodes of described Access Network and self based on specifying the user's face communication protocol version that uses to carry out the user side data transmission.

10, a kind of mobile management network element is characterized in that, comprising:

11, mobile management network element according to claim 10 is characterized in that, also comprises:

Consult trigger module, be used for when equipment connection request that receives described access network node transmission or service connection request, activating described second negotiation module.

According to the mobile management network element shown in the claim 10, it is characterized in that 12, described second acquisition module comprises:

Receiving element is used to receive equipment connection request or the service connection request that described access network node sends, and described equipment connection request or service connection request comprise user's face communication protocol version information that described access network node is supported;

Resolution unit is used for obtaining user's face communication protocol version information that described access network node is supported according to described equipment connection request or service connection request.

13, mobile management network element according to claim 10 is characterized in that, described second control module comprises:

First sends indicating member, be used for the time to described access network node transmitting apparatus connection response, user's face communication protocol version information that described appointment is used sends to described access network node, and indicates described access network node and core net gateway based on specifying the user's face communication protocol version that uses to carry out the user side data transmission; Perhaps

Second sends indicating member, is used for when described access network node sends the service request acknowledge message, and user's face communication protocol version information that described appointment is used sends to described access network node; And indicate described access network node and core net gateway based on specifying the user's face communication protocol version that uses to carry out the user side data transmission.

14, mobile management network element according to claim 13 is characterized in that, described second control module also comprises:

Memory cell, the address information that is used to store the core net gateway related with described access network node;

Query unit, be used for when receiving the service connection request of described access network node transmission, obtain the address information of described core net gateway to described memory cell, the address information of obtaining is sent to described first send indicating member or second and send indicating member.

15, mobile management network element according to claim 13 is characterized in that, described second control module also comprises:

Acquiring unit, be used for when receiving the service connection request of described access network node transmission, obtain the address information of described core net gateway to domain name system server, described address information is sent to described first send indicating member or second and send indicating member.

16, a kind of access network node is characterized in that, comprising:

17, a kind of communication protocol version negotiation system is characterized in that, comprises Access Network first node and Access Network Section Point;

18, a kind of communication protocol version negotiation system is characterized in that, comprises access network node, mobile management network element and core net gateway;