CN103582158A - Straight-through tunnel establishing method, network element, gateway and straight-through tunnel establishing system - Google Patents
Straight-through tunnel establishing method, network element, gateway and straight-through tunnel establishing system Download PDFInfo
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Abstract
The invention discloses a straight-through tunnel establishing method, a network element, a gateway and a straight-through tunnel establishing system. The method comprises the following steps: an application function entity transmits information of an opposite-end wireless side network element to a wireless side network element, and a straight-through tunnel is established between the wireless side network element and the opposite-end wireless side network element; or the application function entity transmits information of an opposite-end service gateway to a service gateway, and a straight-through tunnel is established between the service gateway and the opposite-end service gateway. By the adoption of the straight-through tunnel establishing method provided by the scheme, the problem that communication between terminals is carried out through an access gateway so as to cause large time delay of user data transmission can be solved, time delay of user data transmission can be reduced, the transmission performance of the system can be improved, and the user experience can be improved.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of straight-through tunnel establishing method and network element and gateway and system.
Background technology
In order to keep 3-G (Generation Three mobile communication system) in the competitiveness of the communications field, for user provides, speed is faster, the lower and more personalized Mobile Communication Service of time delay, simultaneously, reduce the operation cost of operator, third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) standard operation group is just being devoted to the research of evolved packet system (Evolved Packet System, be called for short EPS).Whole EPS system is divided into wireless access network and core net two parts.In core net, comprised home subscriber server (Home Subscriber Server, referred to as HSS), Mobility Management Entity (Mobility Management Entity, referred to as MME), Serving GPRS Support Node (Serving GPRS SupportNode, referred to as SGSN), policy charging rule function (Policy and Charging Rule Function, referred to as PCRF), gateway (Serving Gateway, referred to as S-GW), packet data gateway (PDN Gateway, referred to as P-GW, ) and packet data network (Packet Data Network, be called for short PDN).Describe functions below in detail:
Home subscriber server, is the permanent storage place of user contracting data, is positioned at the signing home network of user.
Mobility Management Entity, be user contracting data at the storage place of current network, be responsible for the Non-Access Stratum signaling management of terminal to network, the mobile management of the safety verification function of terminal, terminal, the tracking under user's idle pulley and paging management function and bearer management.
Serving GPRS Support Node, global system for mobile communications (Global Systemfor Mobile Communications, referred to as GSM) enhancing data transfer rate GSM evolution (Enhanced Data Rate for GSM Evolution, referred to as EDGE) wireless access network (GSM EDGE Radio AccessNetwork, referred to as GERAN) and universal mobile telecommunications system (Universal Mobile Telecommunications System, referred to as UMTS) land radio access web (UMTS Terrestrial Radio Access Network, referred to as UTRAN) the business support point of user access core network network, similar with Mobility Management Entity in function, being responsible for user's position upgrades, the functions such as paging management and bearer management.
Gateway, is the gateway that core net arrives wireless system, is responsible for terminal to the user plane bearer of core net, the data buffer storage under terminal idle pulley, function, Lawful Interception and packet routing and the forwarding capability of network side initiating business request; Gateway is responsible for the situation that counting user terminal is used wireless network, and produces the ticket that terminal is used wireless network, sends charging gateway to.
Packet data gateway, it is the gateway of evolution system and this system external packet data network, it is connected on internet and packet data network, be responsible for the functions such as Internet protocol (Internet Protocol, referred to as IP) address assignment, billing function, grouping packet filtering and policy control of terminal.
The IP operation network of packet data network ，Shi operator, this network is served for user provides IP by the core net of operator.
Policy charging rule functional entity is the server of being responsible for providing charging control, online credit control, thresholding control and the tactful aspect of service quality (Quality ofService, referred to as QoS) rule in evolution system.
Wireless access network, by evolution base station (Evolved NodeB, referred to as eNB) and 3G radio network controller (Radio Network Controller, referred to as RNC) form, it is mainly responsible for the transmitting-receiving of wireless signal, by air interface and terminal, contact Radio Resource, scheduling of resource and the access control of management air interface.
IP Multimedia System (IP Multimedia Core Network Subsystem, be called for short IMS) be the core of communication network of new generation, its distinguishing feature is to have adopted Session initiation Protocol (Session Initiation Protocol, be called for short SIP) system, communication is irrelevant with access, can possess media service control function separated with bearing capacity, calling is separated with session, application is separated with service, business and network detach, and the multi abilities such as mobile network and internet service fusion, the trend of communication network fusion development has been complied with in the proposition of IMS.
In IMS architecture, CSCF (Call Session Control Function, be called for short CSCF) be the core network element of controlling conversation procedure, comprise: Proxy Call Session Control Function (Proxy-CSCF, abbreviation P-CSCF), query call conversation control function (Interrogating-CSCF, be called for short I-CSCF) 103, service call conversation control function (Serving-CSCF is called for short S-CSCF).
When user carries out Operational Visit (as IMS business), terminal can be initiated PDN(Packet DataNetwork, packet data network) connect process of establishing, MME/SGSN selects gateway and gateway according to APN corresponding to the user institute use business of terminal to report, sets up from the user's face passage between terminal-wireless base station-core net gateway (gateway and IAD).Figure 1 shows that user terminal in prior art receives/send the user plane path of data.
As can be seen from Figure 1, all data of user terminal all need through IAD, under this data transfer mode, data are processed at IAD, increased the load of IAD and transmission network, all packets must pass through IAD this point, have caused again the bottleneck problem of this point of IAD outstanding.In addition, even if two user's physical locations of intercommunication are very close mutually, the data communication between them also needs through IAD, has increased the time delay of user data transmission, reduces user's experience.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of straight-through tunnel establishing method and network element and gateway and system, the larger problem of time delay of the user data transmission causing through IAD while solving terminal and terminal communication.
In order to solve the problems of the technologies described above, the invention provides a kind of straight-through tunnel establishing method, wherein, Application Function transmits the information of opposite end wireless side network element to wireless side network element, and described wireless side network element and described opposite end wireless side network element are set up straight-through tunnel; Or Application Function transmits the information of opposite end gateway to gateway, described gateway and described opposite end gateway are set up straight-through tunnel.
Further, said method can also have following characteristics:
Described method specifically comprises: the information of the side's of exhaling Application Function to the side's of exhaling wireless side network element transmission at the end beginning side's of exhaling wireless side network element begins, the side's of exhaling Application Function transmits the information of the side's of exhaling wireless side network element eventually to the beginning side's of exhaling wireless side network element eventually, the side's of exhaling wireless side network element of described beginning and the straight-through tunnel of the side's of exhaling wireless side network element foundation at described end; Or, the information of the side's of exhaling Application Function to the side's of exhaling gateway transmission at the end beginning side's of exhaling gateway begins, the side's of exhaling Application Function transmits the information of the side's of exhaling gateway eventually to the beginning side's of exhaling gateway eventually, the side's of exhaling gateway of described beginning and the straight-through tunnel of the side's of exhaling gateway foundation at described end.
Further, said method can also have following characteristics:
The side's of exhaling Application Function of described beginning or the side's of exhaling Application Function judgement at described end need to set up behind straight-through tunnel, carry out described transfer operation.
Further, said method can also have following characteristics:
The side's of exhaling Application Function of described beginning or the side's of exhaling Application Function judgement at described end need to set up behind straight-through tunnel, also to wireless side network element or service network element, send routing optimality indication, the side's of exhaling wireless side network element of described beginning with described end the side's of exhaling wireless side network element or the side's of exhaling gateway of described beginning and described end the side's of exhaling gateway set up described straight-through tunnel receiving after described optimization is indicated.
Further, said method can also have following characteristics:
Described Application Function transmits the information of opposite end wireless side network element via policy functional entity, IAD, gateway, Mobility Management Entity to described wireless side network element;
Described Application Function transmits the information of opposite end gateway via policy functional entity, IAD to described gateway.
Further, said method can also have following characteristics:
Wireless side network element is base station, base station from home, home base-station gateway, radio network controller, data distribution functional entity;
Mobility Management Entity is mobile management unit, mobile switching centre, Serving GPRS Support Node, home base-station gateway;
Gateway is gateway or Serving GPRS Support Node;
IAD is grouped data network gateway, IAD, Gateway GPRS Support Node (GGSN);
Policy functional entity is strategy and charging rule functions;
Application Function is agent call session control (P-CSCF) or application function (AF).
In order to solve the problems of the technologies described above, the present invention also provides a kind of Application Function network element, and wherein, described Application Function network element comprises straight-through tunnel management module; Described straight-through tunnel management module, for transmit the information of opposite end wireless side network element to wireless side network element, or transmits the information of opposite end gateway to gateway.
Further, above-mentioned Application Function network element can also have following characteristics:
Described straight-through tunnel management module, specifically for transmitting the information of opposite end wireless side network element via policy functional entity, IAD, gateway, Mobility Management Entity to described wireless side network element; Via policy functional entity, IAD, to described gateway, transmit the information of opposite end gateway.
Further, above-mentioned Application Function network element can also have following characteristics:
Described straight-through tunnel management module, also for described Application Function network element when beginning the side's of exhaling Application Function to end the side's of exhaling wireless side network element transmit the information of the side's of the exhaling wireless side network element that begins, or in described Application Function network element information to the whole side of exhaling of the beginnings side's of exhaling wireless side network element transmission wireless side network element during as the side's of exhaling Application Function eventually; Also for transmit the information of the side of the exhaling service network element that begins when beginning the side's of exhaling Application Function to the side of exhaling service at end network element at described Application Function network element, or described Application Function network element during as the side's of exhaling Application Function eventually to beginnings the side of exhaling serve the information that the whole side of exhaling of network element transmission serves network element.
Further, above-mentioned Application Function network element can also have following characteristics:
Described Application Function network element also comprises that leading directly to tunnel sets up determination module;
Determination module is set up in described straight-through tunnel, for judging, needs to notify described straight-through tunnel management module to carry out described notice operation behind the straight-through tunnel of foundation.
In order to solve the problems of the technologies described above, the present invention also provides a kind of wireless side network element, and wherein, described wireless side network element comprises that receiver module and straight-through tunnel set up module;
Described receiver module, for receiving the information of the opposite end wireless side network element of Application Function transmission;
Module is set up in described straight-through tunnel, for receiving at described receiver module after the information of described opposite end wireless side network element, sets up straight-through tunnel with described opposite end wireless side network element.
In order to solve the problems of the technologies described above, the present invention also provides a kind of gateway, and wherein, described wireless side network element comprises that receiver module and straight-through tunnel set up module; Described receiver module, for receiving the information of the opposite end gateway of Application Function transmission; Module is set up in described straight-through tunnel, for receiving at described receiver module after the information of described opposite end gateway, sets up straight-through tunnel with described opposite end gateway.
In order to solve the problems of the technologies described above, the present invention also provides a kind of straight-through tunnel to set up system, wherein, comprises above-mentioned Application Function network element, also comprises above-mentioned wireless side network element and/or above-mentioned gateway.
The straight-through tunnel establishing method providing in this programme, the larger problem of time delay of the user data transmission causing through IAD in the time of can solving terminal and terminal communication, reduce the time delay of user data transmission, improve system transmission performance, improve user's experience.
Accompanying drawing explanation
Fig. 1 is the data path schematic diagram according to the cordless communication network of correlation technique;
Fig. 2 is the flow chart of straight-through tunnel establishing method in embodiment;
Fig. 3 is according to the schematic diagram of the straight-through data flow of the EPS system architecture of correlation technique in embodiment;
Fig. 4 is that in specific embodiment, user carries out call establishment flow chart one;
Fig. 5 is that in specific embodiment, user carries out call establishment flowchart 2;
Fig. 6 sets up the flow chart in straight-through tunnel between wireless side network element in specific embodiment;
Fig. 7 discharges the flow chart in straight-through tunnel between wireless side network element in specific embodiment.
Embodiment
A kind of method that provides straight-through tunnel to set up in this programme, data path optimization in the time of can realizing nearby intercommunication between user, as shown in Figure 2, can set up the straight-through tunnel between the wireless side network element of two terminals, or set up the straight-through tunnel between the gateway of two terminals, not only can reduce carrier network resource processing load, and can effectively strengthen user's experience.
As shown in Figure 3, straight-through tunnel establishing method comprises: Application Function transmits the information of opposite end wireless side network element to wireless side network element, and described wireless side network element and described opposite end wireless side network element are set up straight-through tunnel; Or Application Function transmits the information of opposite end gateway to gateway, described gateway and described opposite end gateway are set up straight-through tunnel.
This method specifically comprises: the information of the side's of exhaling Application Function to the side's of exhaling wireless side network element transmission at the end beginning side's of exhaling wireless side network element begins, the side's of exhaling Application Function transmits the information of the side's of exhaling wireless side network element eventually to the beginning side's of exhaling wireless side network element eventually, the side's of exhaling wireless side network element of described beginning and the straight-through tunnel of the side's of exhaling wireless side network element foundation at described end; Or, the information of the side's of exhaling Application Function to the side's of exhaling gateway transmission at the end beginning side's of exhaling gateway begins, the side's of exhaling Application Function transmits the information of the side's of exhaling gateway eventually to the beginning side's of exhaling gateway eventually, the side's of exhaling gateway of described beginning and the straight-through tunnel of the side's of exhaling gateway foundation at described end.
Described Application Function transmits the information of opposite end wireless side network element via policy functional entity, IAD, gateway, Mobility Management Entity to described wireless side network element; Via policy functional entity, IAD, to described gateway, transmit the information of opposite end gateway.
The side's of exhaling Application Function of described beginning or described end the side's of exhaling Application Function can also carry out the judgement that whether needs to set up straight-through tunnel, judge and need to set up behind straight-through tunnel, carry out described transfer operation.The side's of exhaling Application Function of described beginning or the side's of exhaling Application Function judgement at described end need to set up behind straight-through tunnel, also to wireless side network element or service network element, send routing optimality indication, the side's of exhaling wireless side network element of described beginning with described end the side's of exhaling wireless side network element or the side's of exhaling gateway of described beginning and described end the side's of exhaling gateway set up described straight-through tunnel receiving after described optimization is indicated.
Wireless side network element is base station, base station from home, home base-station gateway, radio network controller, data distribution functional entity;
Mobility Management Entity is mobile management unit, mobile switching centre, Serving GPRS Support Node, home base-station gateway;
Gateway is gateway or Serving GPRS Support Node;
IAD is grouped data network gateway, IAD, Gateway GPRS Support Node (GGSN);
Policy functional entity is strategy and charging rule functions;
Application Function is agent call session control (P-CSCF) or application function (AF).
Below in conjunction with example, the implementation procedure of the embodiment of the present invention is described in detail.
Following specific embodiment figure has described the application scenarios of universal mobile telecommunications system land radio access web (Evolved Universal Terrestrial Radio Access Network the is called for short E-UTRAN) system based on evolution.
Fig. 4 be the present invention on the basis of Fig. 1 system, user carries out call establishment flow chart.Now, the Application Function of call initiator carries out routing optimality judgement.This specific embodiment comprises that step 401 is to 424.
Step 401, terminal 1(is call initiator) through Application Function 1, S-CSCF1, I-CSCF, S-CSCF2 and Application Function 2, to terminal 2(, be the whole side of exhaling) send and invite (Invite) message.
Step 402, terminal 2 sends 183 message to Application Function 2.
Step 403, Application Function 2 is to policy functional entity 2 request resource mandates.
Step 404, policy functional entity 2 is responded resource authorization response.
Step 405, Application Function 2 sends 183 message, the optional label that carries through S-CSCF2, I-CSCF, S-CSCF1 to Application Function 1.
Step 406, Application Function 1 is to policy functional entity 1 request resource mandate.
Step 407, policy functional entity 1 is responded resource authorization response.
Step 408, Application Function 1 is carried out terminal 1 and whether terminal 2 can carry out the judgement of routing optimality, and judges that terminal 1 and terminal 2 can carry out routing optimality.
Step 409, Application Function 1 transmits 183 message to terminal 1.
Step 410, carries out other SIP Signalling exchange (as PRACK, UPDATE etc.) operation.
If need to carry out routing optimality,, in step 410, Application Function 1 can carry routing optimality indication, wireless side network element 1 information, label (this information is optional) to Application Function 2 by any existing message in this process.
Step 412, Application Function 2 sends resource to policy functional entity 2 and ratifies a motion, and carries routing optimality indication, wireless side network element 1 information, the optional label that carries.
Step 413, policy functional entity 2 provides to IAD 2 sending strategys and charging regulation, carries routing optimality indication, wireless side network element 1 information, the optional label that carries.
Step 414, carries out resource modifying process, refers to the implementation of Fig. 6 below.
Step 415, IAD 2 provides acknowledgement message to policy functional entity 2 reply strategies and charging regulation.
Step 416, policy functional entity 2 is replied resource approval response message to Application Function 2.
Step 417, Application Function 2 sends 200OK message through S-CSCF2, I-CSCF, S-CSCF1 to Application Function 1, carries wireless side network element 2 information, the optional label that carries.
Step 418, Application Function 1 sends resource to policy functional entity 1 and ratifies a motion, and carries routing optimality indication, wireless side network element 2 information, the optional label that carries.
Step 419, policy functional entity 1 provides to IAD 1 sending strategy and charging regulation, carries routing optimality indication, wireless side network element 2 information, the optional label that carries.
Step 420, carries out resource modifying process, refers to the implementation of Fig. 6 below.
Step 421, IAD 1 provides acknowledgement message to policy functional entity 1 reply strategy and charging regulation.
Step 422, policy functional entity 1 is replied resource approval response message to Application Function 1.
Step 423, Application Function 1 is replied 200OK message to terminal 1.
Step 424, continues follow-up flow process.
Fig. 5 be the present invention on the basis of Fig. 1 system, user carries out call establishment flow chart.Now, the Application Function of the side of exhaling carries out routing optimality judgement eventually.The present embodiment comprises that step 501 is to 524.
Step 501, terminal 1(is call initiator) through Application Function 1, S-CSCF1, I-CSCF, S-CSCF2 and Application Function 2, to terminal 2(, be the whole side of exhaling) send and invite (Invite) message.
Step 502, terminal 2 sends 183 message to Application Function 2.
Step 503, Application Function 2 is to policy functional entity 2 request resource mandates.
Step 504, policy functional entity 2 is responded resource authorization response.
Step 505, Application Function 2 sends 183 message through S-CSCF2, I-CSCF, S-CSCF1 to Application Function 1.
Step 506, Application Function 1 is to policy functional entity 1 request resource mandate.
Step 507, policy functional entity 1 is responded resource authorization response.
Step 509, carries out other SIP Signalling exchange (as PRACK, UPDATE etc.) operation.
Alternatively, Application Function 1 can carry label to Application Function 2 by any existing message in this process.
Step 510, Application Function 2 judges whether terminal 1 and terminal 2 can carry out routing optimality.
Step 512, Application Function 2 sends resource to policy functional entity 2 and ratifies a motion, if need to carry out routing optimality, in this message, carries routing optimality indication, wireless side network element 1 information, the optional label that carries.
Step 513, policy functional entity 2 provides to IAD 2 sending strategys and charging regulation, carries routing optimality indication, wireless side network element 1 information, the optional label that carries.
Step 514, carries out resource modifying process, refers to the implementation of Fig. 6 below.
Step 515, IAD 2 provides acknowledgement message to policy functional entity 2 reply strategies and charging regulation.
Step 516, policy functional entity 2 is replied resource approval response message to Application Function 2.
Step 517, Application Function 2 sends 200OK message through S-CSCF2, I-CSCF, S-CSCF1 to Application Function 1, carries routing optimality indication, wireless side network element 2 information, the optional label that carries.
Step 518, Application Function 1 sends resource to policy functional entity 1 and ratifies a motion, and carries routing optimality indication, wireless side network element 2 information, the optional label that carries.
Step 519, policy functional entity 1 provides to IAD 1 sending strategy and charging regulation, carries routing optimality indication, wireless side network element 2 information, the optional label that carries.
Step 520, carries out resource modifying process, refers to the implementation of Fig. 6 below.
Step 521, IAD 1 provides acknowledgement message to policy functional entity 1 reply strategy and charging regulation.
Step 522, policy functional entity 1 is replied resource approval response message to Application Function 1.
Step 524, continues follow-up flow process.
The label carrying in above Fig. 4 and Fig. 5 can be distributed by Application Function 1 or Application Function 2, for uniqueness sign carrying so that while setting up in straight-through tunnel the foundation of straight-through tunnel ask or response message in carry, mate carrying.In addition, routing optimality indication represents to need to set up straight-through tunnel, sets up the indication of straight-through tunnel.
Fig. 6 is on the basis of Fig. 1 system, sets up the flow chart in straight-through tunnel between wireless side network element.This flow process comprises that step 601 is to 606.
Step 601, IAD 1 receives sets up the indication of straight-through tunnel.
Step 602, IAD 1 sends and sets up or new bearer request more to gateway 1, carries wireless side network element 2 information, optional tape label.
Step 603, gateway 1 sends and sets up or new bearer request more to Mobility Management Entity 1, carries wireless side network element 2 information, optional tape label.
Step 604, Mobility Management Entity 1 sends and sets up or revise carrying request to wireless side network element 1, carries wireless side network element 2 information, optional tape label.
Step 601 ' to step 604 ', similar wireless side network element 1, exhales end network element also to carry out similar step 601 to the process of step 604 eventually, and therefore, wireless side network element 2 has also obtained wireless side network element 1 information, has obtained alternatively label.
Step 605, alternatively, wireless side network element 1 sends straight-through tunnel to wireless side network element 2 and sets up request message, optional label or the Tunnel Identifier of carrying.Wireless side network element 2 is replied response message.
Step 606, continues to carry out follow-up flow process.
In above-mentioned flow process, straight-through tunnel can be shunted based on carrying, also can shunt based on application or IP stream.The tunnel of setting up between wireless side network element can be based on carrying or based on terminal rank, as IMSI, or (can adopt label to be used as Tunnel Identifier mark tunnel based on equipment or based on other tunnel of IP address level, also can newly distribute Tunnel Identifier to come mark tunnel by wireless side network element, for bearer management).
Fig. 7 is on the basis of Fig. 1 system, discharges the flow chart in straight-through tunnel between wireless side network element.This flow process comprises that step 701 is to 706.
Step 701, IAD 1 sends and upgrades bearing request message to gateway 1, carries TFT1 information.
Step 702, gateway 1 sends and upgrades bearing request message to Mobility Management Entity 1, carries TFT1 information.
Step 703, Mobility Management Entity 1 sends and revises bearing request message to wireless side network element 1, carries TFT1.
Step 704, wireless side network element 1 checks this TFT1, judges whether to need to delete straight-through tunnel.If need to delete straight-through tunnel, wireless side network element 1 discharges straight-through tunnel relevant information.
Step 701 ' to 704 ', similar wireless side network element 1, exhales end network element also to carry out similar step 701 to the process of step 704 eventually, therefore, wireless side network element 2 has also obtained TFT2 information, then, in the situation that judgement needs to delete straight-through tunnel, discharges straight-through tunnel relevant information.
Step 705, alternatively, wireless side network element 1 sends straight-through tunnel release message, optional tape label or Tunnel Identifier to wireless side network element 2.
Step 706, continues to carry out follow-up flow process.
Above embodiment take between wireless side network element, set up tunnel scene as example is described, in the situation that setting up tunnel between gateway, be described below:
In Fig. 4 and Fig. 5, what Application Function 1 and Application Function 2 obtained respectively is not wireless side net element information, but the information of gateway 2 and gateway 1, so in the message of Fig. 4, Fig. 5 and Fig. 6, need the wireless side net element information carrying to replace with the gateway information of carrying.
In Fig. 6, gateway 1, after 602, can lead directly to tunnel and set up operation, and now 603 and 604 do not need to carry extraneous information, and do not carry out 605.Exhale eventually the similar above-mentioned processing of end network element.
In Fig. 7, gateway 1 is after 701, and inspection needs to delete behind straight-through tunnel, leads directly to tunnel information and deletes, optional to the gateway 2 straight-through tunnel of initiation releasing operations.Now do not need to carry out 704 and 705.Exhale eventually the similar above-mentioned processing of end network element.
Above in all embodiment, between any wireless side network element or the message between gateway (as step 605) can transmit by Mobility Management Entity, for example, optional two Mobility Management Entity carry out the transmission of message.
For simplified characterization, above embodiment only be take the situation of Fig. 1 and the way to manage that local IP access connects is described as example.(for example, UTRAN system, exist in the situation of home base-station gateway) in other cases, the foundation operation that still needs to lead directly to tunnel.In these cases, very similar to above-described embodiment to the mode of setting up in straight-through tunnel, can not impact setting forth the present invention, therefore be no longer repeated in this description at this.
Wireless side network element can be base station, base station from home, home base-station gateway, RNC(radio network controller, Radio Network Controller), data distribution functional entity.Mobility Management Entity can be MME(mobile management unit, Mobility Management Entity), MSC(mobile switching centre, Mobile Switching Centre), SGSN(Serving GPRS Support Node, Serving GPRS Support Node), home base-station gateway.Gateway can be S-GW or SGSN.IAD can be P-GW, AGW or GGSN.
Policy functional entity can be PCRF, and Application Function can be P-CSCF or AF.
Corresponding to said method, the Application Function network element in native system comprises straight-through tunnel management module.
Described straight-through tunnel management module, for transmit the information of opposite end wireless side network element to wireless side network element, or transmits the information of opposite end gateway to gateway; Specifically via policy functional entity, IAD, gateway, Mobility Management Entity, to described wireless side network element, transmit the information of opposite end wireless side network element; Via policy functional entity, IAD, to described gateway, transmit the information of opposite end gateway.
Described straight-through tunnel management module, also for described Application Function network element when beginning the side's of exhaling Application Function to end the side's of exhaling wireless side network element transmit the information of the side's of the exhaling wireless side network element that begins, or in described Application Function network element information to the whole side of exhaling of the beginnings side's of exhaling wireless side network element transmission wireless side network element during as the side's of exhaling Application Function eventually; Also for transmit the information of the side of the exhaling service network element that begins when beginning the side's of exhaling Application Function to the side of exhaling service at end network element at described Application Function network element, or described Application Function network element during as the side's of exhaling Application Function eventually to beginnings the side of exhaling serve the information that the whole side of exhaling of network element transmission serves network element.
Described Application Function network element also comprises that leading directly to tunnel sets up determination module;
Determination module is set up in described straight-through tunnel, for judging, needs to notify described straight-through tunnel management module to carry out described notice operation behind the straight-through tunnel of foundation.
Corresponding to said method, the wireless side network element in native system comprises that receiver module and straight-through tunnel set up module;
Described receiver module, for receiving the information of the opposite end wireless side network element of Application Function transmission;
Module is set up in described straight-through tunnel, for receiving at described receiver module after the information of described opposite end wireless side network element, sets up straight-through tunnel with described opposite end wireless side network element.
Corresponding to said method, a kind of gateway in native system comprises that receiver module and straight-through tunnel set up module;
Described receiver module, for receiving the information of the opposite end gateway of Application Function transmission;
Module is set up in described straight-through tunnel, for receiving at described receiver module after the information of described opposite end gateway, sets up straight-through tunnel with described opposite end gateway.
Straight-through tunnel in this programme is set up system and is comprised above-mentioned Application Function network element, also comprises above-mentioned wireless side network element and/or above-mentioned gateway.
It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
It should be noted that, in the situation that not conflicting, the embodiment in the application and the feature in embodiment be combination in any mutually.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
One of ordinary skill in the art will appreciate that all or part of step in said method can come instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (13)
1. a straight-through tunnel establishing method, wherein,
Application Function transmits the information of opposite end wireless side network element to wireless side network element, described wireless side network element and described opposite end wireless side network element are set up straight-through tunnel;
Or Application Function transmits the information of opposite end gateway to gateway, described gateway and described opposite end gateway are set up straight-through tunnel.
2. the method for claim 1, is characterized in that,
Described method specifically comprises: the information of the side's of exhaling Application Function to the side's of exhaling wireless side network element transmission at the end beginning side's of exhaling wireless side network element begins, the side's of exhaling Application Function transmits the information of the side's of exhaling wireless side network element eventually to the beginning side's of exhaling wireless side network element eventually, the side's of exhaling wireless side network element of described beginning and the straight-through tunnel of the side's of exhaling wireless side network element foundation at described end;
Or,
The information of the side's of exhaling Application Function to the side's of exhaling gateway transmission at the end beginning side's of exhaling gateway begins, the side's of exhaling Application Function transmits the information of the side's of exhaling gateway eventually to the beginning side's of exhaling gateway eventually, the side's of exhaling gateway of described beginning and the straight-through tunnel of the side's of exhaling gateway foundation at described end.
3. method as claimed in claim 2, is characterized in that,
The side's of exhaling Application Function of described beginning or the side's of exhaling Application Function judgement at described end need to set up behind straight-through tunnel, carry out described transfer operation.
4. method as claimed in claim 3, is characterized in that,
The side's of exhaling Application Function of described beginning or the side's of exhaling Application Function judgement at described end need to set up behind straight-through tunnel, also to wireless side network element or service network element, send routing optimality indication, the side's of exhaling wireless side network element of described beginning with described end the side's of exhaling wireless side network element or the side's of exhaling gateway of described beginning and described end the side's of exhaling gateway set up described straight-through tunnel receiving after described optimization is indicated.
5. the method for claim 1, is characterized in that,
Described Application Function transmits the information of opposite end wireless side network element via policy functional entity, IAD, gateway, Mobility Management Entity to described wireless side network element;
Described Application Function transmits the information of opposite end gateway via policy functional entity, IAD to described gateway.
6. the method for claim 1, is characterized in that,
Wireless side network element is base station, base station from home, home base-station gateway, radio network controller, data distribution functional entity;
Mobility Management Entity is mobile management unit, mobile switching centre, Serving GPRS Support Node, home base-station gateway;
Gateway is gateway or Serving GPRS Support Node;
IAD is grouped data network gateway, IAD, Gateway GPRS Support Node (GGSN);
Policy functional entity is strategy and charging rule functions;
Application Function is agent call session control (P-CSCF) or application function (AF).
7. an Application Function network element, wherein,
Described Application Function network element comprises straight-through tunnel management module;
Described straight-through tunnel management module, for transmit the information of opposite end wireless side network element to wireless side network element, or transmits the information of opposite end gateway to gateway.
8. Application Function network element as claimed in claim 7, is characterized in that,
Described straight-through tunnel management module, specifically for transmitting the information of opposite end wireless side network element via policy functional entity, IAD, gateway, Mobility Management Entity to described wireless side network element; Via policy functional entity, IAD, to described gateway, transmit the information of opposite end gateway.
9. Application Function network element as claimed in claim 7, is characterized in that,
Described straight-through tunnel management module, also for described Application Function network element when beginning the side's of exhaling Application Function to end the side's of exhaling wireless side network element transmit the information of the side's of the exhaling wireless side network element that begins, or in described Application Function network element information to the whole side of exhaling of the beginnings side's of exhaling wireless side network element transmission wireless side network element during as the side's of exhaling Application Function eventually; Also for transmit the information of the side of the exhaling service network element that begins when beginning the side's of exhaling Application Function to the side of exhaling service at end network element at described Application Function network element, or described Application Function network element during as the side's of exhaling Application Function eventually to beginnings the side of exhaling serve the information that the whole side of exhaling of network element transmission serves network element.
10. Application Function network element as claimed in claim 7, is characterized in that,
Described Application Function network element also comprises that leading directly to tunnel sets up determination module;
Determination module is set up in described straight-through tunnel, for judging, needs to notify described straight-through tunnel management module to carry out described notice operation behind the straight-through tunnel of foundation.
11. 1 kinds of wireless side network elements, wherein,
Described wireless side network element comprises that receiver module and straight-through tunnel set up module;
Described receiver module, for receiving the information of the opposite end wireless side network element of Application Function transmission;
Module is set up in described straight-through tunnel, for receiving at described receiver module after the information of described opposite end wireless side network element, sets up straight-through tunnel with described opposite end wireless side network element.
12. 1 kinds of gateways, wherein,
Described wireless side network element comprises that receiver module and straight-through tunnel set up module;
Described receiver module, for receiving the information of the opposite end gateway of Application Function transmission;
Module is set up in described straight-through tunnel, for receiving at described receiver module after the information of described opposite end gateway, sets up straight-through tunnel with described opposite end gateway.
System is set up in 13. 1 kinds of straight-through tunnels, wherein, comprises the Application Function network element in described claim 7,8,9,10, also comprises wireless side network element in described claim 11 and/or the gateway in described claim 12.
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