CN105075336A

CN105075336A - Transmission device, user plane node and control plane node, and data transmission method

Info

Publication number: CN105075336A
Application number: CN201380046159.0A
Authority: CN
Inventors: 张万强; 时晓岩
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-12-30
Filing date: 2013-12-30
Publication date: 2015-11-18
Also published as: WO2015100537A1

Abstract

Provided are a transmission device, user plane node and control plane node, and data transmission method. The transmission device comprises: a receiving module (11) for receiving a temporary mobile subscriber identity (TMSI) and a data packet pending transmission sent by a user equipment (UE), the TMSI being allocated for the UE by a control plane node and sent by the control plane node to a specific user plane node; a selection module (12) for selecting a specific user plane node from a plurality of alternate user plane nodes according to the TMSI or according to a selection result negotiated in advance between the selection module and the control plane node; a sending module (13) for sending the data packet pending transmission and the TMSI to the user plane node. Implementation of the present invention can solve the problems in the prior art of the inability to effectively improve transmission efficiency and security risk, thus alleviating network burden and simplifying signaling interaction processes.

Description

Transmitting device, user face nodes and chain of command node and data transmission method

【Technical field】

The present invention relates to communication technical field, and in particular to a kind of data transmission method, further relates to transmitting device, user face nodes and chain of command node using the data connection method.

【Background technology】

In EPC（Evolved Packet Core, the packet-based core networks of evolution）In, UE（User Equipment, user equipment）When carrying out data service, it is necessary in advance in MME（Mobility Management Entity, mobility management entity）Carrying is set up, MME can preserve the corresponding bearer context of the carrying, then UE initiates Stochastic accessing and RRC to base station（Radio Resource Control, wireless heterogeneous networks）Connection set up, and via RRC connection procedures to base station send service request, base station according to service request initiate to MME connection set up, then MME according to UE bearer context in base station and S-GW (Serving Gateway, gateway) or P-GW（PDN Gateway, packet data gateway）Between set up tunnel, thus, the packet that UE is sent to base station can be transmitted on tunnel, so as to complete data service,

MME plays important role during UE carries out data service, assume responsibility for most Signalling exchange.However, Just because of this, UE is transmitted, it is necessary to carry out multiple Signalling exchange between base station and MME, between MME and S-GW or P-GW per a packet is actively initiated, and could complete the transmission of packet.If the data volume of packet is smaller, the expense for resulting in signaling plane is far longer than the data volume of actual transfer, influences the efficiency of network, further, if UE frequently initiates the packet transmission of small data quantity, frequently Signalling exchange can be caused in network, causes network congestion.

In order to improve above mentioned problem, prior art proposes a solution, propose that UE still needs to set up in MME in advance to carry, but MME needs to send identification information to UE in loading establishing process, the identification information is included and the address for carrying corresponding S-GW or P-GW and corresponding TEID（Tunnel endpoint Identification, Tunnel End Point Identifier）.So, UE just can set up process via RRC connections and packet and identification information are sent into base station, base station can parse identification information and obtain S-GW or P-GW address and corresponding TEID, S-GW or P-GW corresponding with carrying are determined according to S-GW or P-GW address, and S-GW or P-GW are transmitted packets to according to TEID, thus complete packet transmission.The program participates in the packet transmission that UE is actively initiated without MME, saves a part of Signalling exchange, can lift network transmission efficiency.

But, the present inventor has found in long-term research and development, although such scheme can save Signalling exchange, the length for grasping identification information is difficult in the specific implementation, if identification information length is longer, and the data volume included in itself is smaller, efficiency of transmission can be then reduced, the address for requiring consideration for how to allow base station correctly to parse S-GW or P-GW again if identification information length is shorter and corresponding TEID, so, prior art is difficult to effectively lift efficiency of transmission.In addition, if using DNS（Domain Name Service, domain name resolution server）, need to increase extra Signalling exchange again, so as to increase network burden.Also, further, due to the display transmission that the UE identification informations for being sent to base station belong in air interface, so the identification information can bring potential security risk again.

【The content of the invention】

In view of this, the embodiment of the present invention provides a kind of transmitting device, user face nodes and chain of command node and data transmission method, can solve the problem that the problem of prior art is difficult to effectively to lift efficiency of transmission and there is security risk.

First aspect of the embodiment of the present invention provides a kind of transmitting device for data transfer, including：Receiving module, TMSI and data to be transmitted bag for receiving user equipment transmission, wherein, the TMSI gives the user equipment by chain of command node distribution, and the TMSI is sent to specific user face nodes by the chain of command node；Selecting module, for selecting the specific user face nodes from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with the chain of command node；Sending module, for the data to be transmitted bag and the TMSI to be sent into the user face nodes.

With reference in a first aspect, in the first possible implementation of first aspect, the receiving module is additionally operable to receive the carrying mark for being used to identify bearer context that the user equipment is sent；The sending module is additionally operable to the carrying mark being sent to the user face nodes.

With reference to the first possible implementation of first aspect or first aspect, in second of possible implementation of first aspect, the TMSI includes node matching information, and the selecting module is specifically for the corresponding user face nodes of the corresponding relation selection according to predetermined node matching information and user face nodes and node matching information in the TMSI.

With reference to second of possible implementation of first aspect, in the third possible implementation of first aspect, the receiving module is additionally operable to before the selecting module is according to the corresponding user face nodes of the corresponding relation selections of predetermined node matching information and user face nodes and node matching information in the TMSI, receives the corresponding relation of the node matching information that the chain of command node sends and user face nodes.

With reference to second of possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, the base station also includes configuration module, the configuration module is used for before the selecting module is according to the corresponding user face nodes of the corresponding relation selections of predetermined node matching information and user face nodes and node matching information in the TMSI, and the corresponding relation of the node matching information and user face nodes is configured with the chain of command node joint consultation.

With reference to second of possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, the node matching information is mobility management entity identification code MMEC or network resource identifier NRI.

With reference to the first possible implementation of first aspect, in the 6th kind of possible implementation of first aspect, the sending module is identified specifically for encapsulating the data to be transmitted bag, the TMSI and the carrying in GTP-U data or GTP-C data, and the GTP-U data or the GTP-C data are sent into the user face nodes.

With reference to first aspect, first aspect the first to the 6th kind of any possible implementation, in the 7th kind of possible implementation of first aspect, the TMSI is S-TMSI or P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is SGSN.

Second aspect of the embodiment of the present invention provides a kind of user face nodes, including：Mark module, the TMSI for being sent using chain of command node marks user equipment；Receiving module, the data to be transmitted bag and the TMSI from the user equipment for receiving transmitting device transmission；Transport module, for determining bearer context corresponding with the user equipment according to the TMSI, and transmits the data to be transmitted bag according to the bearer context.

With reference to second aspect, in the first possible implementation of second aspect, the receiving module is additionally operable to receive the mark of the carrying for identifying bearer context from the user equipment that the transmitting device is sent；The transport module is additionally operable to when bearer context corresponding with the user equipment is at least two, is determined from least two bearer context corresponding with the user equipment and the carrying corresponding bearer context of mark.

With reference to the first possible implementation of second aspect, in second of possible implementation of second aspect, the receiving module is identified specifically for receiving the GTP-U data or GTP-C data of the transmitting device transmission, and obtaining the data to be transmitted bag, the TMSI and the carrying from the GTP-U data or the GTP-C data.

With reference to the first or second of possible implementation of second aspect, second aspect, in the third possible implementation of second aspect, the mark module specifically for the establishment session request sent from chain of command node or obtains the TMSI in modification carrying request, and user equipment is marked using the TMSI.

With reference to second aspect, second aspect the first to the third any possible implementation, in the 4th kind of possible implementation of second aspect, the TMSI is S-TMSI or P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is SGSN.

The third aspect of the embodiment of the present invention provides a kind of chain of command node, including：Distribute module, for distributing TMSI for user equipment；Selecting module, for selecting the specific user face nodes from the node of multiple alternative user faces according to the TMSI, or selects the specific user face nodes according to the selection result consulted in advance with transmitting device from the node of multiple alternative user faces；Sending module, for the TMSI to be sent into the user face nodes.

With reference to the third aspect, in the first possible implementation of the third aspect, the TMSI includes node matching information, and the selecting module is specifically for determining the user face nodes corresponding with node matching information in the TMSI according to the corresponding relation of predetermined node matching information and user face nodes.

With reference to the first possible implementation of the third aspect or the third aspect, in second of possible implementation of the third aspect, the chain of command node also includes configuration module, the configuration module is used to select the specific user face nodes from the node of multiple alternative user faces according to the TMSI in the selecting module, or before according to the selection result consulted in advance with transmitting device selecting the specific user face nodes from the node of multiple alternative user faces, configure the corresponding relation of the node matching information and user face nodes；The sending module is additionally operable to the corresponding relation of the node matching information and user face nodes being sent to the transmitting device.

With reference to the first possible implementation of the third aspect or the third aspect, in the third possible implementation of the third aspect, the chain of command node also includes configuration module, the configuration module is used to select the specific user face nodes from the node of multiple alternative user faces according to the TMSI in the selecting module, or before according to the selection result consulted in advance with transmitting device selecting the specific user face nodes from the node of multiple alternative user faces, the corresponding relation of the node matching information and user face nodes is configured with the transmitting device joint consultation.

With reference to the third aspect, the third aspect the first to the third any possible implementation, in the 4th kind of possible implementation of the third aspect, the sending module is sent to the user face nodes specifically for carrying the TMSI in session request or modification carrying request is created, and by the establishment session request or modification carrying request.

Fourth aspect of the embodiment of the present invention provides a kind of data transmission method, including：Transmitting device receives the TMSI and data to be transmitted bag that user equipment is sent, wherein, the TMSI gives the user equipment by chain of command node distribution, and the TMSI is sent to specific user face nodes by the chain of command node；The specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with the chain of command node；The data to be transmitted bag and the TMSI are sent to the user face nodes.

With reference to fourth aspect, in the first possible implementation of fourth aspect, it is described receive user equipment send TMSI and data to be transmitted bag the step of also include：Receive the carrying mark for being used to identify bearer context that the user equipment is sent；It is described also to include the step of the data to be transmitted bag and the TMSI are sent into the user face nodes：The carrying mark is sent to the user face nodes.

With reference to the first possible implementation of fourth aspect or fourth aspect, in second of possible implementation of fourth aspect, the TMSI includes node matching information, described to be specially the step of select the specific user face nodes from the node of multiple alternative user faces according to the TMSI：According to the corresponding user face nodes of the selection of the corresponding relation of predetermined node matching information and user face nodes and node matching information in the TMSI.

With reference to second of possible implementation of fourth aspect, in the third possible implementation of fourth aspect, before the step of corresponding relation selection according to predetermined node matching information and user face nodes user face nodes corresponding with node matching information in the TMSI, in addition to：Receive the node matching information of the chain of command node transmission and the corresponding relation of user face nodes.

With reference to second of possible implementation of fourth aspect, in the 4th kind of possible implementation of fourth aspect, before the step of corresponding relation selection according to predetermined node matching information and user face nodes user face nodes corresponding with node matching information in the TMSI, in addition to：The corresponding relation of the node matching information and user face nodes is configured with the chain of command node joint consultation.

With reference to second of possible implementation of fourth aspect, in the 5th kind of possible implementation of fourth aspect, the node matching information is mobility management entity identification code MMEC or network resource identifier NRI.

With reference to the first possible implementation of fourth aspect, in the 6th kind of possible implementation of fourth aspect, it is described by the data to be transmitted bag, the TMSI and the carrying mark be sent to the user face nodes the step of be specially：The data to be transmitted bag, the TMSI and carrying mark are encapsulated in GTP-U data or GTP-C data, and the GTP-U data or the GTP-C data are sent to the user face nodes.

With reference to fourth aspect, fourth aspect the first to the 6th kind of possible implementation, in the 7th kind of possible implementation of fourth aspect, the TMSI is S-TMSI or P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is SGSN.

The aspect of the embodiment of the present invention the 5th provides a kind of data transmission method, including：The TMSI mark user equipmenies that user face nodes are sent using chain of command node；Receive the data to be transmitted bag and the TMSI from the user equipment that transmitting device is sent；Bearer context corresponding with the user equipment is determined according to the TMSI, and the data to be transmitted bag is transmitted according to the bearer context.

With reference to the 5th aspect, the 5th aspect the first possible implementation in, it is described receive transmitting device send from the data to be transmitted bag of the user equipment and the TMSI the step of also include；Receive the mark of the carrying for identifying bearer context from the user equipment that the transmitting device is sent；The step of determination bearer context corresponding with the user equipment according to the TMSI, also includes：When bearer context corresponding with the user equipment is at least two, determined from least two bearer context corresponding with the user equipment and the carrying corresponding bearer context of mark.

With reference to the 5th aspect the first possible implementation, the 5th aspect second of possible implementation in, it is described receive transmitting device send from the data to be transmitted bag of the user equipment and the TMSI the step of be specially：GTP-U data or GTP-C data that the transmitting device is sent are received, the data to be transmitted bag, the TMSI and carrying mark are obtained from the GTP-U data or the GTP-C data.

With reference to the 5th aspect, the first or second of possible implementation of the 5th aspect, it is specially in the third possible implementation of the 5th aspect, the step of the TMSI mark user equipmenies that the utilization chain of command node is sent：The establishment session request sent from chain of command node obtains the TMSI in modification carrying request, and user equipment is marked using the TMSI.

With reference to the 5th aspect, the 5th aspect the first to the third any possible implementation, in the 4th kind of possible implementation of the 5th aspect, the TMSI is S-TMSI or P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is SGSN.

The aspect of the embodiment of the present invention the 6th provides a kind of data transmission method, including：Chain of command node is that user equipment distributes TMSI；The specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with transmitting device；The TMSI is sent to the user face nodes.

With reference to the 6th aspect, in the first possible implementation of the 6th aspect, the TMSI includes node matching information, described to be specially the step of select the specific user face nodes from the node of multiple alternative user faces according to the TMSI：The user face nodes corresponding with node matching information in the TMSI are determined according to the corresponding relation of predetermined node matching information and user face nodes.

With reference to the 6th aspect or the first possible implementation of the 6th aspect, in second of possible implementation of the 6th aspect, the specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI described, or the step of according to the selection result consulted in advance with the chain of command node select the specific user face nodes from the node of multiple alternative user faces before, in addition to：Configure the corresponding relation of the node matching information and user face nodes；It is described also to include the step of the TMSI is sent into the user face nodes：The corresponding relation of the node matching information and user face nodes is sent to the transmitting device.

With reference to the 6th aspect or the first possible implementation of the 6th aspect, in the third possible implementation of the 6th aspect, the specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI described, or the step of according to the selection result consulted in advance with the chain of command node select the specific user face nodes from the node of multiple alternative user faces before, in addition to：The corresponding relation of the node matching information and user face nodes is configured with the transmitting device joint consultation.

With reference to the 6th aspect, the 6th aspect the first to the third possible implementation, it is described to be specially the step of the TMSI is sent into the user face nodes in the 4th kind of possible implementation of the 6th aspect：The TMSI is carried in session request or modification carrying request is created, and the establishment session request or modification carrying request are sent to the user face nodes.

The aspect of the embodiment of the present invention the 7th provides a kind of transmitting device for data transfer, including processor, receiver and transmitter, wherein, the receiver is used for the TMSI and data to be transmitted bag for receiving user equipment transmission, wherein, the TMSI gives the user equipment by chain of command node distribution, and the TMSI is sent to specific user face nodes by the chain of command node；The processor is used to select the specific user face nodes from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with the chain of command node；The transmitter is used to the data to be transmitted bag and the TMSI being sent to the user face nodes.

Eighth aspect of the embodiment of the present invention provides a kind of user face nodes, including processor and receiver, wherein, the processor is used for the TMSI mark user equipmenies sent using chain of command node；The receiver is used for the data to be transmitted bag and the TMSI from the user equipment for receiving transmitting device transmission；The processor is additionally operable to determine bearer context corresponding with the user equipment according to the TMSI, and transmits the data to be transmitted bag according to the bearer context.

The aspect of the embodiment of the present invention the 9th provides a kind of chain of command node, including processor and transmitter, wherein, the processor is used to distribute TMSI for user equipment, and the specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with transmitting device；The transmitter is used to the TMSI being sent to the user face nodes.

The embodiment of the present invention is that user equipment distributes TMSI by chain of command node, and TMSI is issued specific user face nodes by chain of command node, when user equipment sends TMSI and data to be transmitted bag to base station, the selection result that base station can in advance consult according to TMSI or with chain of command node selects specific user face nodes, so as to which the user face nodes can determine bearer context corresponding with user equipment according to TMSI, thus data to be transmitted bag is transmitted, because the relevant information that base station does not need user equipment to send user face nodes can just select correct user face nodes, so as to effectively lift efficiency of transmission, solve the problem of prior art is difficult to effectively lift efficiency of transmission, network burden can be mitigated, simplified signaling interaction, and it can avoid being modified existing network design, it is easy to utilize；Simultaneously as relevant information of the embodiment of the present invention without transmitting user face nodes on interface in the air, so that security risk will not be brought.

【Brief description of the drawings】

Fig. 1 is structural representation of the present invention for the transmitting device first embodiment of data transfer；

Fig. 2 is the structural representation of user face nodes first embodiment of the present invention；

Fig. 3 is the structural representation of chain of command node first embodiment of the present invention；

Fig. 4 is the Signalling exchange schematic diagram that chain of command node of the present invention sends a kind of application scenarios of TMSI to user equipment and user face nodes；

Fig. 5 is the Signalling exchange schematic diagram that chain of command node of the present invention sends another application scenarios of TMSI to user equipment and user face nodes；

Fig. 6 is the Signalling exchange schematic diagram of user equipment of the present invention, base station and a kind of application scenarios of user face nodes；

Fig. 7 is the schematic flow sheet of data transmission method first embodiment of the present invention；

Fig. 8 is the schematic flow sheet of data transmission method second embodiment of the present invention；

Fig. 9 is the schematic flow sheet of data transmission method 3rd embodiment of the present invention；

Figure 10 is the schematic flow sheet of data transmission method fourth embodiment of the present invention；

Figure 11 is structural representation of the present invention for the transmitting device second embodiment of data transfer；

Figure 12 is the structural representation of user face nodes second embodiment of the present invention；

Figure 13 is the structural representation of chain of command node second embodiment of the present invention.

【Embodiment】

In describing below, in order to illustrate rather than in order to limit, it is proposed that such as detail of particular system structure, interface, technology etc, the present invention is understood so as to thorough.However, it will be clear to one skilled in the art that the present invention can also be realized in the other embodiments without these details.In other situations, the detailed description to well-known device, circuit and method is omitted, in case unnecessary details hinders description of the invention.

The techniques described herein may be used in LTE（Long Term Evolution, Long Term Evolution）EPC frameworks or E-UTRAN on network（Evolved Universal Terrestrial Radio Access Network, the Universal Terrestrial wireless access network of evolution）Framework, GSM（Global System for Mobile Communications, global system for mobile communications）In GERAN（GSM EDGE Radio Access Network, GSM EDGE Radio Access Network）Framework, UMTS（Universal Mobile Telecommunications System, UMTS）In UTRAN（Universal Terrestrial Radio Access Network, Universal Terrestrial wireless access network）Framework.

User equipment mentioned in this article, can be that wireless terminal can also be catv terminal, wireless terminal can refer to the equipment for providing a user voice and/or data connectivity, portable equipment with wireless connecting function or other processing equipments for being connected to radio modem.Wireless terminal can be communicated through wireless access network with one or more core nets, and wireless terminal can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.For example, PCS（PCS, Personal Communication Service）Phone, wireless phone, Session initiation Protocol（SIP）Phone, WLL（WLL, Wireless Local Loop）Stand, personal digital assistant（PDA, Personal Digital Assistant）Etc. equipment.Wireless terminal is referred to as system, subscri er unit（Subscriber Unit）, subscriber station（Subscriber Station）, movement station（Mobile Station）, mobile station（Mobile）, distant station（Remote Station）, access point（Access Point）, remote terminal（Remote Terminal）, access terminal（Access Terminal）, user terminal（User Terminal）, user agent（User Agent）.

Base station mentioned in this article（For example, access point）It can refer in access network on interface in the air by one or more sectors and the equipment of wireless terminal communications.Base station can be used for IP packets mutually being changed the air frame received, and as the router between wireless terminal and the remainder of access network, the remainder of wherein access network may include Internet protocol（IP）Network.Attribute management of the base station also tunable to air interface.If it is necessary, base station is also understood that as the base station controller in 2G networks（Base Station Controller, BSC）, or the radio network controller in 3G network（Radio Network Controller, RNC）, or the evolved node B in LTE network（evolved Node B, eNodeB）.For example, base station can be the base station in GSM or CDMA（BTS, Base Transceiver Station）Or the base station in WCDMA（NodeB）, can also be the evolved base station in LTE（NodeB or eNB or e-NodeB, evolutional Node B）, it is of the invention not limit.

In addition, "and/or" herein, only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A and B, these three situations of individualism B.

Referring to Fig. 1, being structural representation of the present invention for the transmitting device first embodiment of data transfer.The base station of the present embodiment includes receiving module 11, selecting module 12 and sending module 13, alternatively, may also include configuration module 14, other modules can also be further included certainly.In the present embodiment, transmitting device is base station.

Receiving module 11 is used for the TMSI for receiving user equipment transmission（Temporary Mobile Group Identity, Temporary Mobile）With data to be transmitted bag, wherein, TMSI is by chain of command node distribution to user equipment, and TMSI is sent to specific user face nodes by chain of command node.

Wherein, user equipment can be set up process by RRC connections and send TMSI and data to be transmitted bag.User equipment has built up carrying, TMSI is distributed to user equipment by chain of command node in attaching process in a network before RRC connections foundation is initiated.It is identical that chain of command node, which is sent to specific user face nodes and the TMSI of user equipment,.

Selecting module 12 is used to select specific user face nodes from the node of multiple alternative user faces according to TMSI, or selects specific user face nodes from the node of multiple alternative user faces according to the selection result consulted in advance with chain of command node.

Wherein, if selecting specific user face nodes according to selection result, transmitting device is just consulted with chain of command node before the TMSI that user equipment is sent is received and obtains selection result.That is, selection result has pointed to a fixed user face nodes, selecting module 12 can only select the user face nodes of the fixation according to selection result.

User face nodes can be SAE-GW（System Architecture Evolution Gateway, System Architecture Evolution gateway）, specifically include S-GW and/or P-GW.S-GW is responsible for preserving the bearer context of user equipment, the IP address and routing iinformation of such as user equipment, and performs the functions such as Lawful Interception, packet routing.P-GW is responsible for the user plane anchor point function of user equipment accessing group data net, is communicated by reference points such as SGi with Packet Data Network, with the function such as packet route and forwarding, strategy execution, charging.P-GW is attached by interface with S-GW, the signaling such as transmission carrying is set up, modification, deletion.

Sending module 13 is used to data to be transmitted bag and TMSI being sent to user face nodes.

In the present embodiment, alternatively, receiving module 11 is additionally operable to receive the carrying mark for being used to identify bearer context that user equipment is sent.Sending module 13 is additionally operable to carrying mark being sent to user face nodes, wherein, if bearer context only one of which corresponding with user equipment, then user face nodes are only determined after the user equipment by TMSI, have also determined that the corresponding bearer context of the user equipment；If bearer context corresponding with user equipment is at least two, then user face nodes are determined after corresponding user equipment according to TMSI, determine the user equipment yet further still according to carrying mark with the carrying corresponding bearer context of mark.

GTP is generally used in view of user face nodes（GRPS Tunneling Protocol, general packet wireless service tunnel protocol）Signalling exchange is carried out, and GTP includes GTP-C（GRPS Tunneling protocol for control Plane, GPRS Tunnel Protocol chain of command）And GTP-U（GRPS Tunneling protocol for user Plane, GPRS Tunnel Protocol user plane）, the sending module 13 of the present embodiment is identified specifically for encapsulating data to be transmitted bag, TMSI and carrying in GTP-U data or GTP-C data, and GTP-U data or GTP-C data are sent into user face nodes.

Alternatively, TMSI can also include node matching information, and selecting module 12 is specifically for the corresponding user face nodes of the corresponding relation selection according to predetermined node matching information and user face nodes and node matching information in TMSI.Different node matching information and different user face nodes are associated correspondence by the corresponding relation, and selecting module 12 can be searched and the node matching information identical node matching information in TMSI, and then corresponding user face nodes of selection in corresponding relation.In corresponding relation, node matching information can be used to represent that the information of user face nodes is corresponding with the title, numbering or address of user face nodes etc..

The acquisition modes of the corresponding relation of node matching information and user face nodes are explained below：

First way, the corresponding relation of node matching information and user face nodes is configured by chain of command node, receiving module 11 is additionally operable to before selecting module 12 is according to the corresponding user face nodes of the corresponding relation selections of predetermined node matching information and user face nodes and node matching information in TMSI, receives the corresponding relation of node matching information that chain of command node sends and user face nodes.

The second way, the corresponding relation of node matching information and user face nodes is participated in configuring by transmitting device, i.e. configuration module 14 is used in selecting module 12 before the user face nodes that the node matching information in the corresponding relation selection according to predetermined node matching information with user face nodes and TMSI is corresponding, with the corresponding relation of chain of command node joint consultation configuration node match information and user face nodes, that is, after the completion of configuration module 14 and the configuration of chain of command node, the corresponding relation of generation is shared and identical.Alternatively, configuration module 14 can just be pre-configured with before user equipment sends TMSI with chain of command node and preserve corresponding relation.

In above two mode, alternatively, node matching information is MMEC（MME Code, mobility management entity identification code）Or NRI（Network Resource Identifier, network resource identifier）.The present embodiment is illustrated by taking MMEC as an example to the corresponding relation of node matching information and user face nodes, and as shown in table 1, A, B, C, D in table 1 represent S-GW title or numbering to the corresponding relation of MMEC and user face nodes.

The node matching information of table 1（MMEC）With user face nodes（S-GW）Corresponding relation

MMEC value	S-GW
1,2,3	S-GW A
4,5,6	S-GW B
7,8,9	S-GW C
10,11,12	S-GW D

In table 1, the different S-GW of different MMEC values correspondences.Assuming that the value that chain of command node is sent to the MMEC in the TMSI of user equipment is 5, then receiving module 11 is received after the TMSI of user equipment transmission, it is that 5 corresponding user face nodes are S-GW that selecting module 12, which can be found with MMEC value, B, so as to select S-GW B, S-GW The TMSI that the value that B has preserved the MMEC of chain of command node transmission is 5.It should be noted that when chain of command node is user equipment distribution TMSI, MMEC value needs to select from table 1, no matter that is, receiving module 11 receives corresponding relation or the configuration corresponding relation of configuration module 14, MMEC value can only be selected in 1 to 12 this 12 numerals.If replacing MMEC using NRI, its process is similar with said process, and here is omitted.

In the present embodiment, TMSI is S-TMSI（System Architecture Evolution-TMSI, System Architecture Evolution Temporary Mobile）Or P-TMSI（Packet-TMSI, is grouped Temporary Mobile）, and if TMSI is S-TMSI, chain of command node is MME, or if TMSI is P-TMSI, chain of command node is SGSN（Serving GPRS Support Node, service universal grouping wireless business supporting node）.

The transmitting device of the present embodiment is after the TMSI and data to be transmitted bag of user equipment transmission is received, select specific user face nodes, and TMSI is sent to the user face nodes, and the user face nodes have received the TMSI from chain of command node, so as to which user face nodes can determine bearer context corresponding with user equipment according to TMSI and data to be transmitted bag is transmitted with this, because the relevant information that transmitting device does not need user equipment to send user face nodes can just select correct user face nodes and after TMSI is received without interacting signaling with chain of command node, so as to effectively lift efficiency of transmission, solve the problem of prior art is difficult to effectively lift efficiency of transmission, network burden can be mitigated, simplified signaling interaction, and it can avoid being modified existing network design, further, it can avoid being modified existing network design using the transmitting device of the present embodiment, it is easy to utilize；Simultaneously as TMSI can't reveal the information related to network in itself, so security risk will not be brought.

Referring to Fig. 2, being the structural representation of user face nodes first embodiment of the present invention.The user face nodes of the present embodiment include mark module 21, receiving module 22 and transport module 23, and other modules can also be further included certainly.

Mark module 21 is used for the TMSI mark user equipmenies sent using chain of command node.Wherein, TMSI is marked after user equipment, and the TMSI can set up corresponding relation with the information of the user equipment preserved in user face nodes.

Receiving module 22 is used for the data to be transmitted bag and TMSI from user equipment for receiving transmitting device transmission.Wherein, the TMSI that the TMSI and user equipment that chain of command node is sent are sent is identical.

Transport module 23 is used to determine bearer context corresponding with user equipment according to TMSI, and transmits data to be transmitted bag according to bearer context.Wherein, transport module 23 finds the user equipment that the TMSI is marked according to TMSI, so that it is determined that bearer context corresponding with user equipment.

Alternatively, receiving module 22 is additionally operable to receive the mark of the carrying for identifying bearer context from user equipment that transmitting device is sent.Transport module 23 is additionally operable to, when bearer context corresponding with user equipment is at least two, determine from least two bearer contexts corresponding with user equipment and the carrying corresponding bearer context of mark.Wherein, if bearer context only one of which corresponding with user equipment, transport module 23 is only determined after the user equipment by TMSI, the corresponding bearer context of the user equipment has also been determined that.

Signalling exchange is generally carried out using GTP in view of user face nodes, and GTP includes GTP-C and GTP-U, the receiving module 22 of the present embodiment is specifically for receiving GTP-U data or GTP-C data that transmitting device is sent, and acquisition data to be transmitted bag, TMSI and carrying mark from GTP-U data or GTP-C data.

In the present embodiment, alternatively, mark module 21 specifically for the establishment session request sent from chain of command node or obtains TMSI in modification carrying request, and user equipment is marked using TMSI.

In the present embodiment, TMSI is S-TMSI or P-TMSI, and if TMSI is S-TMSI, chain of command node is MME, or if TMSI is P-TMSI, chain of command node is SGSN.

Referring to Fig. 3, being the structural representation of chain of command node first embodiment of the present invention.The chain of command node of the present embodiment includes distribute module 31, selecting module 32 and sending module 33, alternatively, can also include configuration module 34, other modules can also be further included certainly.

Distribute module 31 is used to distribute TMSI for user equipment.Wherein, distribute module 31 can distribute TMSI for user equipment in user equipment attaching process and set up carrying.

Selecting module 32 is used to select specific user face nodes from the node of multiple alternative user faces according to the TMSI that distribute module 31 is distributed, or selects specific user face nodes from the node of multiple alternative user faces according to the selection result consulted in advance with transmitting device.

Wherein, if selecting specific user face nodes according to selection result, chain of command node is just consulted with chain of command node before the TMSI that user equipment is sent is received and obtains selection result.That is, selection result has pointed to a fixed user face nodes, selecting module 32 can only select the user face nodes of the fixation according to selection result.

Sending module 33 is used to TMSI being sent to the user face nodes that selecting module 32 is selected.

In the present embodiment, alternatively, TMSI includes node matching information, and selecting module 32 is specifically for determining the user face nodes corresponding with node matching information in TMSI according to the corresponding relation of predetermined node matching information and user face nodes.Different node matching information and different user face nodes are associated correspondence by the corresponding relation, and selecting module 32 can be searched and the node matching information identical node matching information in TMSI, and then corresponding user face nodes of selection in corresponding relation.In corresponding relation, node matching information can be used to represent that the information of user face nodes is corresponding with the title, numbering or address of user face nodes etc..

The configuration mode of the corresponding relation of node matching information and user face nodes is explained below：

First way, configuration module 34 is used to from the node of multiple alternative user faces select specific user face nodes according to TMSI in selecting module 32, or before according to the selection result consulted in advance with transmitting device selecting specific user face nodes from the node of multiple alternative user faces, the corresponding relation of configuration node match information and user face nodes.Sending module 33 is additionally operable to the corresponding relation of node matching information and user face nodes being sent to transmitting device.

The second way, configuration module 34 is used to from the node of multiple alternative user faces select specific user face nodes according to TMSI in selecting module 32, or before according to the selection result consulted in advance with transmitting device selecting specific user face nodes from the node of multiple alternative user faces, with the corresponding relation of transmitting device joint consultation configuration node match information and user face nodes, that is, after the completion of configuration module 34 and transmitting device configuration, the corresponding relation of generation is shared and identical.Alternatively, chain of command node can just be pre-configured with before chain of command node is user equipment distribution TMSI with transmitting device and preserve corresponding relation.

Alternatively, sending module 33 is sent to user face nodes specifically for carrying TMSI in establishment session request or modification carrying request, and will create session request or change carrying request.

Referring to Fig. 4, being the Signalling exchange schematic diagram that chain of command node of the present invention sends a kind of application scenarios of TMSI to user equipment and user face nodes.The application scenarios are directed to the flow of user equipment initial access network, and Signalling exchange flow is as follows：

User equipment sends attach request to chain of command node.

Chain of command node is that user equipment distributes TMSI according to attach request.

Chain of command node, which is sent, creates session request to user face nodes, creates session request and includes TMSI.

User face nodes preserve TMSI, and user equipment is marked using TMSI.

User face nodes, which are sent, creates conversational response to chain of command node.

The transmission of chain of command node receives attachment and is responsive to user equipment.

In the application scenarios, if chain of command node is MME, user face nodes are SAE-GW, then TMSI is specially S-TMSI.If chain of command node is SGSN, user face nodes are SAE-GW, then TMSI is specially P-TMSI.

Referring to Fig. 5, being the Signalling exchange schematic diagram that chain of command node of the present invention sends another application scenarios of TMSI to user equipment and user face nodes.The application scenarios after user equipment access network for carrying out GUTI（Globally Unique Temporary UE Identity, global unique temporary identity）The flow of reassignment, Signalling exchange flow is as follows：

Chain of command node sends modification carrying request and arrives user face nodes, and modification carrying request bag contains TMSI；

Chain of command node sends GUTI and reassigns order to user equipment.Wherein, TMSI is a GUTI part.

User equipment sends GUTI reassignment completions and is responsive to chain of command node.

User face nodes preserve TMSI, and user equipment is marked using TMSI.

User face nodes send modification carrying and are responsive to chain of command node.

In above two application scenarios, before user equipment is using carrying transmission packet, just saved TMSI corresponding with the bearer context of user equipment in user face nodes.

Referring to Fig. 6, be the Signalling exchange schematic diagram of user equipment of the present invention, transmitting device and a kind of application scenarios of user face nodes, wherein, transmitting device is base station, and Signalling exchange flow is as follows：

User equipment sends random access sequence to base station, and base station sends accidental access response to user equipment.

User equipment sends RRC connection request to base station, and base station sends RRC connection establishment responses to user equipment.Wherein, RRC connection request includes TMSI chain of command node distribution to user equipment.

User equipment transmission RRC connections set up completion and are responsive to base station；Wherein, RRC connections, which are set up, completes data to be transmitted bag of the response bag containing user equipment, alternatively, and the carrying mark for completing to respond and also including and being used to identify bearer context is set up in RRC connections.In other embodiments, user equipment individually can also send data to be transmitted bag and carrying be identified to base station after the completion of RRC connections foundation.

Base station selects specific user face nodes according to TMSI from the node of multiple alternative user faces.

Base station sends GTP-U data or GTP-C data to user face nodes, wherein, GTP-U data or GTP-C packets bag containing data to be transmitted and TMSI.Alternatively, GTP-U data or GTP-C packets are identified containing carrying.

User face nodes determine bearer context corresponding with user equipment, alternatively, if bearer context corresponding with user equipment is at least two, and user face nodes determine the bearer context corresponding with carrying mark also from least two bearer contexts.

User face nodes transmit data to be transmitted bag according to bearer context.For example when user face nodes are PGW, PGW and outside data network, such as internet, IMS（IP Multimedia Subsystem, IP multimedia subsystem）Deng SGi interfaces connection, so that data to be transmitted bag is transmitted to outer data network.

Referring to Fig. 7, being the schematic flow sheet of data transmission method first embodiment of the present invention.Data transmission method comprises the following steps：

S71：Transmitting device receives the TMSI and data to be transmitted bag that user equipment is sent, wherein, TMSI is by chain of command node distribution to user equipment, and TMSI is sent to specific user face nodes by chain of command node.

S72：Specific user face nodes are selected from the node of multiple alternative user faces according to TMSI, or specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with chain of command node.

Wherein, if selecting specific user face nodes according to selection result, transmitting device is just consulted with chain of command node before the TMSI that user equipment is sent is received and obtains selection result.That is, selection result has pointed to a fixed user face nodes, the user face nodes of the fixation can only be selected according to selection result.

The TMSI that user face nodes are preserved is same TMSI to the TMSI of user equipment with chain of command node distribution.User face nodes can be SAE-GW, specifically include S-GW or P-GW.S-GW is responsible for preserving the bearer context of user equipment, the IP address and routing iinformation of such as user equipment, and performs the functions such as Lawful Interception, packet routing.P-GW is responsible for the user plane anchor point function of user equipment accessing group data net, is communicated by reference points such as SGi with Packet Data Network, with the function such as packet route and forwarding, strategy execution, charging.P-GW is attached by interface with S-GW, the signaling such as transmission carrying is set up, modification, deletion.There is corresponding relation between TMSI and the bearer context of user equipment that user face nodes are preserved.

S73：Data to be transmitted bag and TMSI are sent to user face nodes.

Referring to Fig. 8, being the schematic flow sheet of data transmission method second embodiment of the present invention.The present embodiment is based on the data transmission method of first embodiment, and the data transmission method comprises the following steps：

S81：Transmitting device receives TMSI, data to be transmitted bag and the carrying mark for identifying bearer context that user equipment is sent, wherein, TMSI is by chain of command node distribution to user equipment, and TMSI is sent to specific user face nodes by chain of command node, and TMSI includes node matching information.

Wherein, node matching information can be MMEC or NRI.

S82：Receive the node matching information of chain of command node transmission and the corresponding relation of user face nodes.

Wherein, the corresponding relation of node matching information and user face nodes is sent by chain of command node configuration concurrency, and different node matching information is associated correspondence by the corresponding relation from different user face nodes.

S83：According to the corresponding user face nodes of the selection of the corresponding relation of node matching information and user face nodes and node matching information in TMSI.

Wherein, receive after corresponding relation, lookup and the node matching information identical node matching information in TMSI in corresponding relation, and then select corresponding user face nodes.In corresponding relation, node matching information can be used to represent that the information of user face nodes is corresponding with the title, numbering or address of user face nodes etc..

S84：Data to be transmitted bag, TMSI and carrying mark are sent to user face nodes.

Wherein, if bearer context only one of which corresponding with user equipment, so user face nodes are only determined after the user equipment by TMSI, also the corresponding bearer context of the user equipment has been determined that, but if quantity is at least two, user face nodes are only able to find which corresponding bearer context of user equipment, but not can determine which bearer context and be it needs to be determined that, so user face nodes are determined after corresponding user equipment according to TMSI, determine the user equipment yet further still according to carrying mark with the carrying corresponding bearer context of mark.

In the present embodiment, alternatively, the corresponding relation of node matching information and user face nodes can be configured by transmitting device, then transmitting device from chain of command node without receiving corresponding relation, then S82 can be：With the corresponding relation of chain of command node joint consultation configuration node match information and user face nodes, that is to say, that after the completion of transmitting device and the configuration of chain of command node, the corresponding relation of generation is shared and identical.Alternatively, step S82 can be carried out before user equipment sends TMSI, i.e., transmitting device is pre-configured with chain of command node and preserves corresponding relation.

In the data transmission method of the present embodiment, after the TMSI and data to be transmitted bag of user equipment transmission is received, select specific user face nodes, and TMSI is sent to the user face nodes, and the user face nodes have received the TMSI from chain of command node, so as to which user face nodes can determine bearer context corresponding with user equipment according to TMSI and data to be transmitted bag is transmitted with this, due to not needing the relevant information that user equipment sends user face nodes just to select correct user face nodes and after TMSI is received without interacting signaling with chain of command node, so as to effectively lift efficiency of transmission, solve the problem of prior art is difficult to effectively lift efficiency of transmission, network burden can be mitigated, simplified signaling interaction, and it can avoid being modified existing network design, further, it can avoid being modified existing network design using the data transmission method of the present embodiment, it is easy to utilize；Simultaneously as TMSI can't reveal the information related to network in itself, so showing that transmission will not also bring security risk in air interface.

Referring to Fig. 9, being the schematic flow sheet of data transmission method 3rd embodiment of the present invention.Data transmission method comprises the following steps：

S91：The TMSI that user face nodes are sent using chain of command node marks the bearer context of user equipment.

Wherein, TMSI is marked after user equipment, and the TMSI can set up corresponding relation with the information of the user equipment preserved in user face nodes.

S92：Receive the data to be transmitted bag and TMSI from user equipment that transmitting device is sent.

Wherein, the TMSI that the TMSI and user equipment that chain of command node is sent are sent is identical.

S93：Bearer context corresponding with user equipment is determined according to TMSI, and data to be transmitted bag is transmitted according to bearer context.Wherein, the user equipment that the TMSI is marked can be found according to TMSI, so that it is determined that bearer context corresponding with user equipment.

Alternatively, S92 also includes：Receive the mark of the carrying for identifying bearer context from user equipment that transmitting device is sent.The step of determining bearer context corresponding with user equipment according to TMSI includes：When bearer context corresponding with user equipment is at least two, determined from least two bearer contexts corresponding with user equipment and the carrying corresponding bearer context of mark.Wherein, if bearer context only one of which corresponding with user equipment, is only determined after the user equipment by TMSI, the corresponding bearer context of the user equipment has also been determined that.

Signalling exchange is generally carried out using GTP in view of user face nodes, and GTP is included in GTP-C and GTP-U, the present embodiment, S92 is specially：GTP-U data or GTP-C data that transmitting device is sent are received, and data to be transmitted bag, TMSI and carrying are obtained from GTP-U data or GTP-C data and are identified.

Referring to Fig. 10, being the schematic flow sheet of data transmission method fourth embodiment of the present invention.Data transmission method comprises the following steps：

S101：Chain of command node is that user equipment distributes TMSI.

Wherein, TMSI can be that user equipment distributes and sets up carrying in user equipment attaching process.

S102：Specific user face nodes are selected from the node of multiple alternative user faces according to TMSI, or specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with transmitting device.

S103：TMSI is sent to user face nodes.

In the present embodiment, alternatively, TMSI includes node matching information, then S102 is specially further：The user face nodes corresponding with node matching information in TMSI are determined according to the corresponding relation of predetermined node matching information and user face nodes.Different node matching information and different user face nodes are associated correspondence by the corresponding relation, and user face nodes can be searched and the node matching information identical node matching information in TMSI, and then corresponding user face nodes of selection in corresponding relation.In corresponding relation, node matching information can be used to represent that the information of user face nodes is corresponding with the title, numbering or address of user face nodes etc..

First way, before S102, in addition to：The corresponding relation of configuration node match information and user face nodes.Then S103 also includes：The corresponding relation of node matching information and user face nodes is sent to transmitting device.

The second way, before S102, in addition to：With the corresponding relation of transmitting device joint consultation configuration node match information and user face nodes, that is to say, that after the completion of chain of command node and transmitting device configuration, the corresponding relation of generation is shared and identical.Alternatively, chain of command node can just be pre-configured with before chain of command node is user equipment distribution TMSI with transmitting device and preserve corresponding relation.

Alternatively, S103 is specially：TMSI is carried in session request or modification carrying request is created, and will create session request or modification carrying request is sent to user face nodes.

Figure 11 is referred to, is structural representation of the present invention for the transmitting device second embodiment of data transfer.Base station includes processor（processer）111st, memory（memory）112nd, bus 113 And communication interface（communication interface）114.Wherein, processor 111, memory 112 and communication interface 114 are connected with each other by bus 113.Communication interface 114 is used for and user equipment（It is not shown）, user face nodes（It is not shown）And chain of command node（It is not shown）Connection.

Bus 113 can be Peripheral Component Interconnect standard（English：Peripheral Component Interconnect, abbreviation：PCI）Bus or EISA（English：Extended Industry Standard Architecture, abbreviation：EISA）Bus etc..The bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Figure 11 with a thick line, it is not intended that only one bus or a type of bus.

Memory 112 is used to deposit program.Specifically, program can include program code, and described program code includes computer-managed instruction.Memory 112 may include high-speed random access memory（English：random-access Memory, abbreviation：RAM）Memory, it is also possible to also including nonvolatile memory（English：Non-volatile memory, abbreviation：NVM）, for example, at least one magnetic disk storage.

Processor 111 is probably a central processing unit（English：central processing Unit, abbreviation：CPU）.

Processor 111 performs the program that memory 112 is deposited, for realizing data transmission method provided in an embodiment of the present invention, including：

TMSI and data to be transmitted bag that user equipment is sent are received, wherein, TMSI is by chain of command node distribution to user equipment, and TMSI is sent to specific user face nodes by chain of command node；

Specific user face nodes are selected from the node of multiple alternative user faces according to TMSI, or specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with chain of command node；

Data to be transmitted bag and TMSI are sent to user face nodes.

Alternatively, in the present embodiment, the step of TMSI and data to be transmitted bag for receiving user equipment transmission, also includes：Receive the carrying mark for being used to identify bearer context that user equipment is sent.The step of data to be transmitted bag and TMSI are sent into user face nodes also includes：Carrying mark is sent to user face nodes.

Alternatively, TMSI includes node matching information, and the step of selecting specific user face nodes from the node of multiple alternative user faces according to TMSI is specially：According to the corresponding user face nodes of the selection of the corresponding relation of predetermined node matching information and user face nodes and node matching information in TMSI.Further, before according to the corresponding user face nodes of the selection of the corresponding relation of predetermined node matching information and user face nodes and node matching information in TMSI, in addition to：Receive the node matching information of chain of command node transmission and the corresponding relation of user face nodes, or the corresponding relation with chain of command node joint consultation configuration node match information and user face nodes.Wherein, node matching information can be MMEC or NRI.

Alternatively, by data to be transmitted bag, TMSI and carrying mark be sent to user face nodes the step of be specially：Data to be transmitted bag, TMSI and carrying mark are encapsulated in GTP-U data or GTP-C data, and GTP-U data or GTP-C data are sent to user face nodes.

Alternatively, TMSI is S-TMSI or P-TMSI, and if TMSI is S-TMSI, chain of command node is MME, or if TMSI is P-TMSI, chain of command node is SGSN.

Processor 111 implements transmitting device and data transmission method that process refer to previous embodiment, is no longer described in detail herein.

Figure 12 is referred to, is the structural representation of user face nodes second embodiment of the present invention.User face nodes include processor（processer）121st, memory（memory）122nd, bus 123 And communication interface（communication interface）124.Wherein, processor 121, memory 122 and communication interface 124 are connected with each other by bus 123.Communication interface 124 is used for and base station（It is not shown）And chain of command node（It is not shown）Connection.

Bus 123 can be Peripheral Component Interconnect standard（English：Peripheral Component Interconnect, abbreviation：PCI）Bus or EISA（English：Extended Industry Standard Architecture, abbreviation：EISA）Bus etc..The bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Figure 12 with a thick line, it is not intended that only one bus or a type of bus.

Memory 122 is used to deposit program.Specifically, program can include program code, and described program code includes computer-managed instruction.Memory 122 may include high-speed random access memory（English：random-access Memory, abbreviation：RAM）Memory, it is also possible to also including nonvolatile memory（English：Non-volatile memory, abbreviation：NVM）, for example, at least one magnetic disk storage.

Processor 121 is probably a central processing unit（English：central processing Unit, abbreviation：CPU）.

Processor 121 performs the program that memory 122 is deposited, for realizing data transmission method provided in an embodiment of the present invention, including：

The TMSI sent with chain of command node marks user equipment；

Receive the data to be transmitted bag and TMSI from user equipment that transmitting device is sent；

Bearer context corresponding with user equipment is determined according to TMSI, and data to be transmitted bag is transmitted according to bearer context.

Alternatively, the step of data to be transmitted bag and TMSI from user equipment for receiving transmitting device transmission, also includes；Receive the mark of the carrying for identifying bearer context from user equipment that transmitting device is sent.The step of determining bearer context corresponding with user equipment according to TMSI also includes：When bearer context corresponding with user equipment is at least two, determined from least two bearer contexts corresponding with user equipment and the carrying corresponding bearer context of mark.

Further, alternatively, the step of data to be transmitted bag and TMSI from user equipment of reception transmitting device transmission is specially：GTP-U data or GTP-C data that transmitting device is sent are received, data to be transmitted bag, TMSI and carrying mark are obtained from GTP-U data or GTP-C data.

Alternatively, using chain of command node send TMSI mark user equipment the step of be specially：The establishment session request sent from chain of command node obtains TMSI in modification carrying request, and user equipment is marked using TMSI.

Processor 121 implements user face nodes and data transmission method that process refer to previous embodiment, is no longer described in detail herein.

Figure 13 is referred to, is the structural representation of chain of command node second embodiment of the present invention.Chain of command node includes processor（processer）131st, memory（memory）132nd, bus 133 And communication interface（communication interface）134.Wherein, processor 131, memory 132 and communication interface 134 are connected with each other by bus 133.Communication interface 134 is used for and user equipment（It is not shown）, base station（It is not shown）And user face nodes（It is not shown）Connection.

Bus 133 can be Peripheral Component Interconnect standard（English：Peripheral Component Interconnect, abbreviation：PCI）Bus or EISA（English：Extended Industry Standard Architecture, abbreviation：EISA）Bus etc..The bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Figure 13 with a thick line, it is not intended that only one bus or a type of bus.

Memory 132 is used to deposit program.Specifically, program can include program code, and described program code includes computer-managed instruction.Memory 132 may include high-speed random access memory（English：random-access Memory, abbreviation：RAM）Memory, it is also possible to also including nonvolatile memory（English：Non-volatile memory, abbreviation：NVM）, for example, at least one magnetic disk storage.

Processor 131 is probably a central processing unit（English：central processing Unit, abbreviation：CPU）.

Processor 131 performs the program that memory 132 is deposited, for realizing data transmission method provided in an embodiment of the present invention, including：

TMSI is distributed for user equipment, and specific user face nodes are selected from the node of multiple alternative user faces according to TMSI, or specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with transmitting device；

TMSI is sent to user face nodes.

Alternatively, TMSI includes node matching information.The step of selecting specific user face nodes from the node of multiple alternative user faces according to TMSI be specially：The user face nodes corresponding with node matching information in TMSI are determined according to the corresponding relation of predetermined node matching information and user face nodes..

Further, alternatively, before the step of specific user face nodes being selected from the node of multiple alternative user faces according to TMSI, or specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with chain of command node, in addition to：The corresponding relation of configuration node match information and user face nodes.The step of TMSI is sent into user face nodes also includes：The corresponding relation of node matching information and user face nodes is sent to transmitting device.

Alternatively, before the step of selecting specific user face nodes from the node of multiple alternative user faces according to TMSI, or specific user face nodes selected from the node of multiple alternative user faces according to the selection result consulted in advance with chain of command node, in addition to：With the corresponding relation of transmitting device joint consultation configuration node match information and user face nodes.

Alternatively, the step of TMSI being sent into user face nodes be specially：TMSI is carried in session request or modification carrying request is created, and will create session request or modification carrying request is sent to user face nodes.

Processor 131 implements chain of command node and data transmission method that process refer to previous embodiment, is no longer described in detail herein.

In several embodiments provided by the present invention, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the module or unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.

The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.

In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.

If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or all or part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Or processor（processor）Perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory）, random access memory（RAM, Random Access Memory）, magnetic disc or CD etc. are various can be with the medium of store program codes.

It the foregoing is only embodiments of the invention; it is not intended to limit the scope of the invention; equivalent structure or equivalent flow conversion that every utilization description of the invention and accompanying drawing content are made; or other related technical fields are directly or indirectly used in, it is included within the scope of the present invention.

Claims

A kind of transmitting device for data transfer, it is characterised in that including：

Receiving module, Temporary Mobile TMSI and data to be transmitted bag for receiving user equipment transmission, wherein, the TMSI gives the user equipment by chain of command node distribution, and the TMSI is sent to specific user face nodes by the chain of command node；

Selecting module, for selecting the specific user face nodes from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with the chain of command node；

Sending module, for the data to be transmitted bag and the TMSI to be sent into the user face nodes.
Transmitting device according to claim 1, it is characterised in that the receiving module is additionally operable to receive the carrying mark for being used to identify bearer context that the user equipment is sent；

The sending module is additionally operable to the carrying mark being sent to the user face nodes.
According to claim 1 or 2 Described transmitting device, it is characterized in that, the TMSI includes node matching information, and the selecting module is specifically for the corresponding user face nodes of the corresponding relation selection according to predetermined node matching information and user face nodes and node matching information in the TMSI.
Transmitting device according to claim 3, it is characterized in that, the receiving module is additionally operable to before the selecting module is according to the corresponding user face nodes of the corresponding relation selections of predetermined node matching information and user face nodes and node matching information in the TMSI, receives the corresponding relation of the node matching information that the chain of command node sends and user face nodes.
Transmitting device according to claim 3, it is characterized in that, the base station also includes configuration module, the configuration module is used for before the selecting module is according to the corresponding user face nodes of the corresponding relation selections of predetermined node matching information and user face nodes and node matching information in the TMSI, and the corresponding relation of the node matching information and user face nodes is configured with the chain of command node joint consultation.
Transmitting device according to claim 3, it is characterised in that the node matching information is mobility management entity identification code MMEC or network resource identifier NRI.
Transmitting device according to claim 2, it is characterized in that, the sending module is identified specifically for encapsulating the data to be transmitted bag, the TMSI and the carrying in general packet wireless service tunnel protocol user plane GTP-U data or general packet radio service tunneling protocol for control plane (GTP-C) GTP-C data, and the GTP-U data or the GTP-C data are sent into the user face nodes.
Transmitting device according to any one of claim 1 to 7, it is characterized in that, the TMSI is System Architecture Evolution Temporary Mobile S-TMSI or packet Temporary Mobile P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is service universal grouping wireless business supporting node SGSN.
A kind of user face nodes, it is characterised in that including：

Mark module, the Temporary Mobile TMSI for being sent using chain of command node marks user equipment；

Receiving module, the data to be transmitted bag and the TMSI from the user equipment for receiving transmitting device transmission；

Transport module, for determining bearer context corresponding with the user equipment according to the TMSI, and transmits the data to be transmitted bag according to the bearer context.
User face nodes according to claim 9, it is characterised in that the receiving module is additionally operable to receive the mark of the carrying for identifying bearer context from the user equipment that the transmitting device is sent；

The transport module is additionally operable to when bearer context corresponding with the user equipment is at least two, is determined from least two bearer context corresponding with the user equipment and the carrying corresponding bearer context of mark.
User face nodes according to claim 10, it is characterized in that, the receiving module is identified specifically for receiving the general packet wireless service tunnel protocol user plane GTP-U data or general packet radio service tunneling protocol for control plane (GTP-C) GTP-C data of the transmitting device transmission, and obtaining the data to be transmitted bag, the TMSI and the carrying from the GTP-U data or the GTP-C data.
User face nodes according to any one of claim 9 to 11, it is characterised in that the mark module specifically for the establishment session request sent from chain of command node or obtains the TMSI in modification carrying request, and user equipment is marked using the TMSI.
User face nodes according to any one of claim 10 to 12, it is characterized in that, the TMSI is System Architecture Evolution Temporary Mobile S-TMSI or packet Temporary Mobile P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is service universal grouping wireless business supporting node SGSN.
A kind of chain of command node, it is characterised in that including：

Distribute module, for distributing Temporary Mobile TMSI for user equipment；

Selecting module, for selecting the specific user face nodes from the node of multiple alternative user faces according to the TMSI, or selects the specific user face nodes according to the selection result consulted in advance with transmitting device from the node of multiple alternative user faces；

Sending module, for the TMSI to be sent into the user face nodes.
Chain of command node according to claim 14, it is characterized in that, the TMSI includes node matching information, and the selecting module is specifically for determining the user face nodes corresponding with node matching information in the TMSI according to the corresponding relation of predetermined node matching information and user face nodes.
Chain of command node according to claims 14 or 15, it is characterized in that, the chain of command node also includes configuration module, the configuration module is used to select the specific user face nodes from the node of multiple alternative user faces according to the TMSI in the selecting module, or before according to the selection result consulted in advance with transmitting device selecting the specific user face nodes from the node of multiple alternative user faces, configure the corresponding relation of the node matching information and user face nodes；

The sending module is additionally operable to the corresponding relation of the node matching information and user face nodes being sent to the transmitting device.
Chain of command node according to claims 14 or 15, it is characterized in that, the chain of command node also includes configuration module, the configuration module is used to select the specific user face nodes from the node of multiple alternative user faces according to the TMSI in the selecting module, or before according to the selection result consulted in advance with transmitting device selecting the specific user face nodes from the node of multiple alternative user faces, the corresponding relation of the node matching information and user face nodes is configured with the transmitting device joint consultation.
Chain of command node according to any one of claim 14 to 17, it is characterized in that, the sending module is sent to the user face nodes specifically for carrying the TMSI in session request or modification carrying request is created, and by the establishment session request or modification carrying request.
A kind of data transmission method, it is characterised in that including：

Transmitting device receives the Temporary Mobile TMSI and data to be transmitted bag that user equipment is sent, wherein, the TMSI gives the user equipment by chain of command node distribution, and the TMSI is sent to specific user face nodes by the chain of command node；

The specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with the chain of command node；

The data to be transmitted bag and the TMSI are sent to the user face nodes.
Data transmission method according to claim 19, it is characterised in that also include the step of TMSI and data to be transmitted bag that the reception user equipment is sent：

Receive the carrying mark for being used to identify bearer context that the user equipment is sent；

It is described also to include the step of the data to be transmitted bag and the TMSI are sent into the user face nodes：

The carrying mark is sent to the user face nodes.
Data transmission method according to claim 19 or 20, it is characterised in that the TMSI includes node matching information, described to be specially the step of select the specific user face nodes from the node of multiple alternative user faces according to the TMSI：

According to the corresponding user face nodes of the selection of the corresponding relation of predetermined node matching information and user face nodes and node matching information in the TMSI.
Data transmission method according to claim 21, it is characterised in that before the step of the corresponding relation selection according to predetermined node matching information and user face nodes user face nodes corresponding with node matching information in the TMSI, in addition to：

Receive the node matching information of the chain of command node transmission and the corresponding relation of user face nodes.
Data transmission method according to claim 21, it is characterised in that before the step of the corresponding relation selection according to predetermined node matching information and user face nodes user face nodes corresponding with node matching information in the TMSI, in addition to：

The corresponding relation of the node matching information and user face nodes is configured with the chain of command node joint consultation.
Data transmission method according to claim 21, it is characterised in that the node matching information is mobility management entity identification code MMEC or network resource identifier NRI.
Data transmission method according to claim 20, it is characterised in that it is described by the data to be transmitted bag, the TMSI and the carrying mark be sent to the user face nodes the step of be specially：

The data to be transmitted bag, the TMSI and carrying mark are encapsulated in general packet wireless service tunnel protocol user plane GTP-U data or general packet radio service tunneling protocol for control plane (GTP-C) GTP-C data, and the GTP-U data or the GTP-C data are sent to the user face nodes.
Data transmission method according to any one of claim 19 to 25, it is characterized in that, the TMSI is System Architecture Evolution Temporary Mobile S-TMSI or packet Temporary Mobile P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is service universal grouping wireless business supporting node SGSN.
A kind of data transmission method, it is characterised in that including：

The Temporary Mobile TMSI mark user equipmenies that user face nodes are sent using chain of command node；

Receive the data to be transmitted bag and the TMSI from the user equipment that transmitting device is sent；

Bearer context corresponding with the user equipment is determined according to the TMSI, and the data to be transmitted bag is transmitted according to the bearer context.
Data transmission method according to claim 27, it is characterised in that the reception transmitting device send from the data to be transmitted bag of the user equipment and the TMSI the step of also include；

Receive the mark of the carrying for identifying bearer context from the user equipment that the transmitting device is sent；

The step of determination bearer context corresponding with the user equipment according to the TMSI, also includes：

When bearer context corresponding with the user equipment is at least two, determined from least two bearer context corresponding with the user equipment and the carrying corresponding bearer context of mark.
Data transmission method according to claim 28, it is characterised in that the reception transmitting device send from the data to be transmitted bag of the user equipment and the TMSI the step of be specially：

General packet wireless service tunnel protocol user plane GTP-U data or general packet radio service tunneling protocol for control plane (GTP-C) GTP-C data that the transmitting device is sent are received, the data to be transmitted bag, the TMSI and carrying mark are obtained from the GTP-U data or the GTP-C data.
Data transmission method according to any one of claim 27 to 29, it is characterised in that be specially the step of the TMSI mark user equipmenies that the utilization chain of command node is sent：

The establishment session request sent from chain of command node obtains the TMSI in modification carrying request, and user equipment is marked using the TMSI.
Data transmission method according to any one of claim 27 to 30, it is characterized in that, the TMSI is System Architecture Evolution Temporary Mobile S-TMSI or packet Temporary Mobile P-TMSI, and if the TMSI is S-TMSI, the chain of command node is MME, or if the TMSI is P-TMSI, the chain of command node is service universal grouping wireless business supporting node SGSN.
A kind of data transmission method, it is characterised in that including：

Chain of command node is user equipment distribution Temporary Mobile TMSI；

Specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI, or specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with transmitting device；

The TMSI is sent to the user face nodes.
Data transmission method according to claim 32, it is characterised in that the TMSI includes node matching information, described to be specially the step of select the specific user face nodes from the node of multiple alternative user faces according to the TMSI：

The user face nodes corresponding with node matching information in the TMSI are determined according to the corresponding relation of predetermined node matching information and user face nodes.
Data transmission method according to claim 32 or 33, it is characterized in that, the specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI described, or the step of according to the selection result consulted in advance with the chain of command node select the specific user face nodes from the node of multiple alternative user faces before, in addition to：

Configure the corresponding relation of the node matching information and user face nodes；

It is described also to include the step of the TMSI is sent into the user face nodes：

The corresponding relation of the node matching information and user face nodes is sent to the transmitting device.
Data transmission method according to claim 32 or 33, it is characterized in that, the specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI described, or the step of according to the selection result consulted in advance with the chain of command node select the specific user face nodes from the node of multiple alternative user faces before, in addition to：

The corresponding relation of the node matching information and user face nodes is configured with the transmitting device joint consultation.
Data transmission method according to any one of claim 32 to 35, it is characterised in that described to be specially the step of the TMSI is sent into the user face nodes：

The TMSI is carried in session request or modification carrying request is created, and the establishment session request or modification carrying request are sent to the user face nodes.
A kind of transmitting device for data transfer, it is characterised in that including processor, receiver and transmitter, wherein,

The receiver is used for the Temporary Mobile TMSI and data to be transmitted bag for receiving user equipment transmission, wherein, the TMSI gives the user equipment by chain of command node distribution, and the TMSI is sent to specific user face nodes by the chain of command node；

The processor is used to select the specific user face nodes from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with the chain of command node；

The transmitter is used to the data to be transmitted bag and the TMSI being sent to the user face nodes.
A kind of user face nodes, it is characterised in that including processor and receiver, wherein,

The processor is used for the Temporary Mobile TMSI mark user equipmenies sent using chain of command node；

The receiver is used for the data to be transmitted bag and the TMSI from the user equipment for receiving transmitting device transmission；

The processor is additionally operable to determine bearer context corresponding with the user equipment according to the TMSI, and transmits the data to be transmitted bag according to the bearer context.
A kind of chain of command node, it is characterised in that including processor and transmitter, wherein,

The processor is used for for user equipment distribution Temporary Mobile TMSI, and the specific user face nodes are selected from the node of multiple alternative user faces according to the TMSI, or the specific user face nodes are selected from the node of multiple alternative user faces according to the selection result consulted in advance with transmitting device；

The transmitter is used to the TMSI being sent to the user face nodes.