CN103369592B - Message transmitting method in packet domain and relevant device - Google Patents
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- CN103369592B CN103369592B CN201210084650.XA CN201210084650A CN103369592B CN 103369592 B CN103369592 B CN 103369592B CN 201210084650 A CN201210084650 A CN 201210084650A CN 103369592 B CN103369592 B CN 103369592B
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Abstract
The invention discloses the message transmitting method in a kind of tunnel binding method, packet domain and relevant device, including: GGSN receives the caller PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in the request of this caller PDP context activation；And the terminal iidentification according to called user terminal, trigger called user terminal and initiate the request of called PDP context activation；And carry out PDP context activation process for call subscriber terminal and called user terminal, obtain the caller GTP tunnel mark for call subscriber terminal distribution and the called GTP tunnel mark for called user terminal distribution；And set up the corresponding relation of this caller GTP tunnel mark and this called GTP tunnel mark。Thus based on this corresponding relation set up, in the packet domain the message between user terminal can being transmitted, improve the efficiency carried out data transmission by packet domain between user terminal。
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to the message transmitting method in a kind of tunnel binding method, packet domain and relevant device。
Background technology
At present, at GPRS (GeneralPacketRadioService, general packet radio service) in network, by SGSN (ServingGPRSSupportNode, Serving GPRS Support Node), GGSN (GatewayGPRSSupportNode, Gateway GPRS Support Node) and DNS (DomainNameSystem, domain name system) etc. equipment, can provide based on IP (InternetProtocol for user terminal, Internet protocol) packet switch domain service, process is as follows:
User terminal is when actively accessing external packet data networks, first pass around wireless access network by PDP (PacketDataProtocol, packet data protocol) Context activation request sends to the SGSN of own home, the information that SGSN carries in asking according to this PDP context activation, corresponding GGSN is obtained from dns resolution, and the request of this PDP context activation is sent to this GGSN, PDP context activation process is carried out by GGSN, set up one from this user terminal to the bearing link of GGSN, make this user terminal follow-up can access outer data network based on this bearing link。
According to existing standard agreement, user terminal by, in the process of GPRS network accessing group data net, setting up for user terminal and have GTP (GPRSTunnelProtocol, GPRS Tunnel Protocol) tunnel between SGSN to GGSN。GTP tunnel terminates on GGSN, GGSN isolate the original message of user terminal transmission from the channel message received by GTP tunnel, and forward to Packet Data Network。
Access in the scheme of external packet data networks at above-mentioned user terminal by packet domain core network, one user terminal cannot pass through packet domain and directly access another user terminal, for making directly to be communicated by packet domain between user terminal, existing technical scheme is the mode by private server transfer, for instance:
When sending multimedia message between user terminal, multimedia message is from the user terminal of sender, through GPRS core net and WAP (WirelessApplicationProtocol, WAP) gateway, it is delivered to multimedia message server, and store on multimedia message server, then notify that the user terminal of recipient actively downloads acquisition with short message mode。
In the application of instant communication traffic, the service customer end on user terminal has to log on service server before use, registers its information such as address and state。The data of transmission between user terminal, need through GPRS core net, reach to be on the service server of external packet data networks, data content is temporarily stored by service server, behind the address inquiring recipient's user terminal, again through GPRS core net, data are forwarded to the user terminal of recipient。
Adopt in the scheme that communicates of private server transfer mode by packet domain between the terminal of above-mentioned family, owing between user terminal, the data of transmission all need to carry out transfer through private server, reduce the efficiency of data transmission。
Summary of the invention
The embodiment of the present invention provides the message transmitting method in a kind of tunnel binding method, packet domain and relevant device, carries out data transmission inefficient problem by packet domain in order to solving in prior art between the user terminal existed。
The embodiment of the present invention provides a kind of tunnel binding method, including:
Gateway GPRS Support Node GGSN receives the caller packet data protocol PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in the request of described caller PDP context activation；
Terminal iidentification according to described called user terminal, triggers described called user terminal and initiates the request of called PDP context activation；
Carry out PDP context activation process for described call subscriber terminal and described called user terminal, obtain the caller GPRS Tunnel Protocol GTP tunnel mark distributed for described call subscriber terminal, and the called GTP tunnel distributed for described called user terminal identifies；
Set up the corresponding relation of described caller GTP tunnel mark and described called GTP tunnel mark。
The embodiment of the present invention also provides for a kind of based on the message transmitting method in the packet domain of the corresponding relation in above-mentioned tunnel binding method, including:
The GGSN the first GTP tunnel by setting up between the SGSN of first user terminal attaching, receives this SGSN the first GTP tunnel message sent, is packaged with described first user terminal and is sent to the message of the second user terminal in described first GTP tunnel message；Wherein, described first user terminal is described call subscriber terminal, and described second user terminal is described called user terminal；Or, described first user terminal is described called user terminal, and described second user terminal is described call subscriber terminal；
The first GTP tunnel mark of described first GTP tunnel is obtained from described first GTP tunnel message；
The described corresponding relation that inquiry caller GTP tunnel mark identifies with called GTP tunnel, it is determined that the second GTP tunnel mark corresponding with the described first GTP tunnel mark obtained；
Use described second GTP tunnel mark, be packaged processing to the described message of encapsulation in described first GTP tunnel message, obtain the second GTP tunnel message；
By the second GTP tunnel set up between the SGSN of described second user terminal ownership, described second GTP tunnel message is sent to the SGSN of described second user terminal ownership。
The embodiment of the present invention also provides for the message transmitting method in a kind of packet domain, including:
First user terminal receives second user terminal SGSN by described second user terminal ownership, GGSN, and the SGSN of described first user terminal attaching, the the first limited broadcast message sent, the IP address of distribution when the source address of described first limited broadcast message is described second user terminal PDP context activation, destination address is wired broadcasting address；
Use the IP address of distribution during the described second user terminal PDP context activation carried in described first limited broadcast message, as destination address, build data message；
The described data message that will build, by the SGSN of described first user terminal attaching, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
The embodiment of the present invention also provides for a kind of Gateway GPRS Support Node GGSN, including:
First receives unit, for receiving the caller packet data protocol PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in the request of described caller PDP context activation；
First processing unit, for the terminal iidentification according to described called user terminal, triggers described called user terminal and initiates the request of called PDP context activation；
Second processing unit, for carrying out PDP context activation process for described call subscriber terminal and described called user terminal, obtain the caller GPRS Tunnel Protocol GTP tunnel mark distributed for described call subscriber terminal, and the called GTP tunnel distributed for described called user terminal identifies；
Binding unit, for setting up the corresponding relation of described caller GTP tunnel mark and described called GTP tunnel mark。
The embodiment of the present invention also provides for a kind of GGSN based on above-mentioned corresponding relation, including:
Second receives unit, for the first GTP tunnel set up between the SGSN by first user terminal attaching, receive this SGSN the first GTP tunnel message sent, described first GTP tunnel message is packaged with described first user terminal and is sent to the message of the second user terminal；Wherein, described first user terminal is described call subscriber terminal, and described second user terminal is described called user terminal；Or, described first user terminal is described called user terminal, and described second user terminal is described call subscriber terminal；
Acquiring unit, for obtaining the first GTP tunnel mark of described first GTP tunnel from described first GTP tunnel message；
Query unit, for inquiring about the described corresponding relation of caller GTP tunnel mark and called GTP tunnel mark, it is determined that the second GTP tunnel mark corresponding with the described first GTP tunnel mark obtained；
Encapsulation unit, is used for using described second GTP tunnel mark, is packaged processing to the described message of encapsulation in described first GTP tunnel message, obtains the second GTP tunnel message；
First transmitting element, for the second GTP tunnel by setting up between the SGSN of described second user terminal ownership, is sent to the SGSN of described second user terminal ownership by described second GTP tunnel message。
The embodiment of the present invention also provides for a kind of user terminal, including:
3rd receives unit, for receiving second user terminal SGSN by described second user terminal ownership, GGSN, and the SGSN of this user terminal ownership, the the first limited broadcast message sent, the IP address of distribution when the source address of described first limited broadcast message is described second user terminal PDP context activation, destination address is wired broadcasting address；
First message construction unit, is used for using the IP address of distribution during the described second user terminal PDP context activation carried in described first limited broadcast message, as destination address, builds data message；
Second transmitting element, for the described data message that will build, by the SGSN that this user terminal belongs to, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
Beneficial effect of the present invention includes:
In the method that the embodiment of the present invention provides, call subscriber terminal will and called user terminal between carried out data transmission by packet domain time, the caller PDP context activation request initiated carries the terminal iidentification of called user terminal, the GGSN in the core net terminal iidentification according to this called user terminal, trigger called user terminal and initiate the request of called PDP context activation, and carry out PDP context activation process for call subscriber terminal and called user terminal, obtain the caller GTP tunnel mark for call subscriber terminal distribution, with the called GTP tunnel mark distributed for called user terminal, and set up the corresponding relation of this caller GTP tunnel mark and called GTP tunnel mark。Accordingly, follow-up carried out data transmission by packet domain between this call subscriber terminal and called user terminal time, the GGSN the first GTP tunnel by setting up between the SGSN as the first user terminal attaching of sender, receive this SGSN the first GTP tunnel message sent, first GTP tunnel message is packaged with first user terminal and is sent to the message of the second user terminal as recipient, and from the first GTP tunnel message, obtain the first GTP tunnel mark of the first GTP tunnel, inquire about above-mentioned corresponding relation, the first GTP tunnel determined and obtain identifies the second corresponding GTP tunnel mark, and use this second GTP tunnel to identify, it is packaged processing to the message of transmission, obtain the second GTP tunnel message, then pass through the second GTP tunnel set up between the SGSN of the second user terminal ownership, second GTP tunnel message is sent to the SGSN of the second user terminal ownership, thus realizing being obtained the message of encapsulation in the second GTP tunnel message by the SGSN of the second user terminal ownership, and it is forwarded to the second user terminal, namely achieve and be made directly data transmission by packet domain in the middle of user terminal, compared to existing technology, it is no longer necessary to private server and carries out transfer, improve the efficiency of data transmission。
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, is used for explaining the present invention, is not intended that limitation of the present invention together with the embodiment of the present invention。In the accompanying drawings:
The flow chart of the tunnel binding method that Fig. 1 provides for the embodiment of the present invention；
The flow chart based on the message transmitting method in the packet domain of the corresponding relation set up in above-mentioned tunnel binding method that Fig. 2 provides for the embodiment of the present invention；
The flow chart of the Fig. 3 tunnel binding method for providing in the embodiment of the present invention 1；
Fig. 4 is the flow chart of the message transmitting method in the packet domain of offer in the embodiment of the present invention 2；
Fig. 5 is the flow chart of the message transmitting method in the packet domain of offer in the embodiment of the present invention 3；
The structural representation of the Fig. 6 GGSN for providing in the embodiment of the present invention 4；
The structural representation of the Fig. 7 GGSN for providing in the embodiment of the present invention 5；
The structural representation of the Fig. 8 user terminal for providing in the embodiment of the present invention 6。
Detailed description of the invention
In order to provide the implementation improving the efficiency carried out data transmission between user terminal by packet domain, embodiments provide the message transmitting method in a kind of tunnel binding method, packet domain and relevant device, below in conjunction with Figure of description, the preferred embodiments of the present invention are illustrated, it is to be understood that, preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention。And when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined。
The embodiment of the present invention provides a kind of tunnel binding method, as it is shown in figure 1, include:
Step 101, GGSN receive the caller PDP context activation request of call subscriber terminal, carry the terminal iidentification of called user terminal in the request of this caller PDP context activation。
Step 102, terminal iidentification according to called user terminal, trigger called user terminal and initiate the request of called PDP context activation。
Step 103, carry out PDP context activation process for call subscriber terminal and called user terminal, obtain the caller GTP tunnel mark for call subscriber terminal distribution and the called GTP tunnel mark for called user terminal distribution。
Step 104, set up this caller GTP tunnel mark with this called GTP tunnel mark corresponding relation。
Accordingly, based on the corresponding relation set up in above-mentioned tunnel binding method, the embodiment of the present invention also provides for the message transmitting method in a kind of packet domain, as in figure 2 it is shown, include:
Step 201, GGSN the first GTP tunnel by setting up between the SGSN of first user terminal attaching, receives this SGSN the first GTP tunnel message sent, is packaged with first user terminal and is sent to the message of the second user terminal in the first GTP tunnel message；Wherein, first user terminal is call subscriber terminal, and the second user terminal is called user terminal；Or, first user terminal is called user terminal, and the second user terminal is call subscriber terminal。
Step 202, obtain from the first GTP tunnel message the first GTP tunnel first GTP tunnel mark。
The corresponding relation that step 203, inquiry caller GTP tunnel mark identify with called GTP tunnel, it is determined that the second GTP tunnel mark corresponding with the first GTP tunnel mark obtained。
Step 204, use second GTP tunnel mark, in the first GTP tunnel message encapsulation message be packaged process, obtain the second GTP tunnel message。
Step 205, by second user terminal ownership SGSN between set up the second GTP tunnel, the second GTP tunnel message is sent to second user terminal ownership SGSN。
Below in conjunction with accompanying drawing, with specific embodiment, method provided by the invention is described in detail。
Embodiment 1:
The flow chart of the Fig. 3 tunnel binding side for providing in the embodiment of the present invention 1, specifically includes and processes step as follows:
Step 301, call subscriber terminal send PDP context activation request to the SGSN of own home, for ease of distinguishing, the request of this PDP context activation is called the request of caller PDP context activation, the request of this caller PDP context activation is carried the terminal iidentification of called user terminal。
Concrete, can by the terminal iidentification of called user terminal, APN (AccessPointName in caller PDP context activation is asked, access point) domain name is carried, such as, APN domain name is made up of Subscriber Number MSISDN (MobileSubscriberInternationalISDN/PSTNnumber) and the special APN of called user terminal。
Step 302, the SGSN of call subscriber terminal ownership is after receiving the request of caller PDP context activation, therefrom obtain the APN domain name carried, and based on the special APN in APN domain name, resolve the GGSN address obtaining correspondence, and forward this caller PDP context activation to ask to the GGSN that this GGSN address is corresponding, and in the caller PDP context activation request forwarded, carry the terminal iidentification of call subscriber terminal, such as, the MSISDN of call subscriber terminal, or IMSI (InternationalMobileSubscriberIdentificationNumber, international mobile subscriber identity)。
In this step, this SGSN can also distribute caller GTP tunnel mark for this call subscriber terminal, and this caller GTP tunnel mark of distribution is sent to GGSN。
Concrete, when adopting GTPv1, GTP tunnel divides into up GTP tunnel and descending GTP tunnel, accordingly, GTP tunnel tag slot is divided into up GTP tunnel mark and descending GTP tunnel mark, so, identifying for the descending GTP tunnel of caller of SGSN distribution, i.e. the descending TEID-U of caller；When adopting GTPv0, do not differentiate between up GTP tunnel and descending GTP tunnel, so, the caller GTP tunnel mark of SGSN distribution, the GTP tunnel mark of the unique GTP tunnel for setting up for call subscriber terminal between GGSN, this caller GTP tunnel identifies also referred to as caller TID。
Step 303, GGSN send at this SGSN receiving call subscriber terminal ownership, after the caller PDP context activation request of call subscriber terminal, therefrom obtain the terminal iidentification of the called user terminal carried, and according to this terminal iidentification obtained, inquire about the SGSN of this called user terminal ownership to attaching position register HLR。
In this step, GGSN can also receive this SGSN transmission of call subscriber terminal ownership, and the caller GTP tunnel for call subscriber terminal distribution identifies, and records this caller GTP tunnel mark。
In this step, the caller PDP context activation request that GGSN is also based on receiving carries out other handling process, for instance, the special APN in the APN domain name carried is carried out core peer processes, this is the handling process in current standard agreement, is no longer described in detail at this。
The SGSN of step 304, the GGSN called user terminal ownership by inquiring, PDP context activation notification message is sent to called user terminal, this PDP context activation notification message can carry the terminal iidentification of call subscriber terminal, such as the MSISDN of call subscriber terminal。
Step 305, called user terminal are after receiving this PDP context activation notification message, determine that call subscriber terminal is intended to and carries out data transmission self by packet domain, and after determining and being carried out data transmission by packet domain with call subscriber terminal, build the PDP context activation request of self, for ease of distinguishing, the request of this PDP context activation is called that called PDP context activation is asked, and sends this called PDP context activation request built to the SGSN of own home。
Concrete, it is possible to by the terminal iidentification of call subscriber terminal, the APN domain name in called PDP context activation is asked is carried, for instance, APN domain name is made up of MSISDN and the special APN of call subscriber terminal。
The SGSN of step 306, called user terminal ownership is after receiving the request of called PDP context activation, this called PDP context activation is forwarded to ask to this GGSN, and in the called PDP context activation request forwarded, carry the terminal iidentification of called user terminal, such as, the MSISDN of called user terminal, or IMSI。
In this step, this SGSN can also distribute called GTP tunnel mark for this called user terminal, and this called GTP tunnel mark of distribution is sent to this GGSN。
Concrete, when adopting GTPv1, this SGSN distribution is called descending GTP tunnel mark, i.e. called descending TEID-U；When adopting GTPv0, the called GTP tunnel of this SGSN distribution is designated between GGSN for the unique tunnel of called user terminal, and this called GTP tunnel identifies also referred to as called TID。
Step 307, GGSN send at this SGSN receiving call subscriber terminal ownership, after the caller PDP context activation request of call subscriber terminal, therefrom obtain the terminal iidentification of the call subscriber terminal carried, so that it is determined that call subscriber terminal and called user terminal all ask to activate respective PDP Context, and all prepare to be carried out data transmission by packet domain with the other side。
PDP context activation process is carried out, for instance respectively call subscriber terminal and called user terminal distribution IP address (may also be referred to as pdp address), such as IPv4 address for call subscriber terminal and called user terminal；And for example when adopting GTPv1, also will distribute caller up GTP tunnel mark for call subscriber terminal, distribute called up GTP tunnel mark for called user terminal。
Other concrete handling process referring to prior art, no longer can be described in detail at this。
Step 308, after carrying out PDP context activation process, the caller GTP tunnel mark for call subscriber terminal distribution will be obtained, identify with the called GTP tunnel distributed for called user terminal, in this step, then set up the corresponding relation of this caller GTP tunnel mark and called GTP tunnel mark。
Concrete, when adopting GTPv0, that obtain is the SGSN of call subscriber terminal ownership is that the caller GTP tunnel that call subscriber terminal distributes identifies, with the called GTP tunnel mark that the SGSN of called user terminal ownership is called user terminal distribution, then the corresponding relation set up is the corresponding relation of this caller GTP tunnel mark and called GTP tunnel mark。
When adopting GTPv1, that obtain is the SGSN of call subscriber terminal ownership is the descending GTP tunnel mark of caller that call subscriber terminal distributes, GGSN is the up GTP tunnel mark of caller of call subscriber terminal distribution, the SGSN of called user terminal ownership is the called descending GTP tunnel mark of called user terminal distribution, and the called up GTP tunnel mark that GGSN is called user terminal distribution；Accordingly, when setting up corresponding relation, specifically include:
Set up the corresponding relation of caller up GTP tunnel mark and called descending GTP tunnel mark, and set up called up GTP tunnel mark and the corresponding relation of the descending GTP tunnel mark of caller。
Step 309, after carrying out PDP context activation process, also to call subscriber terminal and called user terminal, correspondence returns caller PDP context activation success response and called PDP context activation success response respectively, and correspondence carries the IP address into call subscriber terminal distribution respectively wherein, with the IP address distributed for called user terminal, for the message transmissions between follow-up call subscriber terminal and called user terminal。
Embodiment 2:
After the corresponding relation of the GTP tunnel mark set up by above-mentioned tunnel binding method between call subscriber terminal and called user terminal, namely message can be transmitted between call subscriber terminal and called user terminal based on this corresponding relation, Fig. 4 is the message transmitting method in the packet domain of offer in the embodiment of the present invention 2, wherein, message can be sent to called user terminal by call subscriber terminal, message can also be sent to call subscriber terminal by called user terminal, for convenience of description, user terminal as sender is called first user terminal, user terminal as recipient is called the second user terminal, this message transmitting method specifically includes and processes step as follows:
Step 401, first user terminal will need to be sent to the message of the second user terminal, by the currently active PDP Context, are sent to the SGSN of first user terminal attaching。
Step 402, first user terminal attaching this SGSN receive first user terminal send this message after, use into this first user terminal distribution first GTP tunnel mark, to receive this message be packaged process, obtain the first GTP tunnel message。
Concrete, when adopting GTPv1, use the first up GTP tunnel mark into this first user terminal distribution, be packaged processing to this message received, obtain the first up GTP tunnel message。
Step 403, first user terminal attaching this SGSN by with first GTP tunnel corresponding with first user terminal set up between GGSN, send the first GTP tunnel message to GGSN。
Concrete, when adopting GTPv1, this SGSN of first user terminal attaching by with the first up GTP tunnel corresponding with first user terminal set up between GGSN, send the first up GTP tunnel message to GGSN。
Step 404, GGSN, after receiving this first GTP tunnel message, therefrom obtain the first GTP tunnel mark of the first GTP tunnel。
Concrete, when adopting GTPv1, from the first up GTP tunnel message received, obtain the first up GTP tunnel mark of the first up GTP tunnel。
In this step, it is also possible to obtain the message that will be sent to the second user terminal of encapsulation in the first GTP tunnel message。
The corresponding relation that the caller GTP tunnel mark that step 405, query GGSN have been set up identifies with called GTP tunnel, it is determined that the second GTP tunnel mark corresponding with the first GTP tunnel mark obtained。
Concrete, when adopting GTPv1, the up GTP tunnel that inquiry has been set up identifies and the corresponding relation of descending GTP tunnel mark, it is determined that the second descending GTP tunnel corresponding with the first up GTP tunnel mark obtained identifies。
The second GTP tunnel mark that step 406, use are determined, to what obtain from the first GTP tunnel message, the message that will be sent to the second user terminal is packaged processing, and obtains the second GTP tunnel message。
Concrete, when adopting GTPv1, use the second descending GTP tunnel mark determined, to what obtain from the first up GTP tunnel message, the message that will be sent to the second user terminal is packaged processing, and obtains the second descending GTP tunnel message。
Step 407, by second user terminal ownership SGSN between set up the second GTP tunnel, the second GTP tunnel message obtained is sent to second user terminal ownership SGSN。
Concrete, when adopting GTPv1, by the second descending GTP tunnel set up between the SGSN of the second user terminal ownership, the obtain second descending GTP tunnel message is sent to the SGSN of the second user terminal ownership。
This SGSN that step 408, the second user terminal belong to, after receiving this second GTP tunnel message, therefrom obtains the message that will be sent to the second user terminal carried, and this message obtained is transmitted to the second user terminal。
Concrete, when adopting GTPv1, from the second descending GTP tunnel message received, obtain the message that will be sent to the second user terminal carried, and this message obtained is transmitted to the second user terminal。
By the scheme provided in above-described embodiment 1 and embodiment 2, when being carried out data transmission by packet domain between user terminal, it is no longer necessary to carry out transfer through private server, but it is made directly data transmission by packet domain, namely achieve by the direct communication of packet domain between user terminal, thus improve the efficiency of data transmission。
And, in the technology that existing user terminal is communicated by packet domain, because IPv4 address depletion, user terminal is generally dynamically allocated private IP address in GPRS core net, can must interconnect with external packet data net through the conversion of NAT (NetworkAddressTranslation, network address translation) address。And private server is generally placed in external packet data net, the communication that prior art carries out between the ues necessarily refers at least 2 NAT address conversions, cause the delay that data are transmitted, add the consumption processing resource, and make many application layer business functions limited。
And adopting the such scheme that the embodiment of the present invention provides, GGSN, according only to the GTP tunnel mark corresponding relation set up, is namely capable of the forwarding of message, without resolving IP address, thus decreasing the delay of data transmission, and decreases the consumption processing resource。
Embodiment 3:
Based on requirement to block domain data message transmissions in existing standard agreement, the data message of transmission needs to carry the IP address of Correspondent Node, in order to meet this requirement, the embodiment of the present invention 3 also proposes the message transmitting method of a kind of packet domain, the method is applied to subscriber terminal side, and based on the GTP tunnel mark corresponding relation set up in above-described embodiment 1, and the message transmitting method provided in embodiment 2, step is processed as follows as it is shown in figure 5, specifically include:
Step 501, first user terminal are after receiving the GGSN PDP context activation success response returned, the IP address of self distribution it is retrieved as from this PDP context activation success response, and use this IP address of distribution as source address, use limited broadcast address as destination address, build the second limited broadcast message。
Step 502, the second limited broadcast message that will build, by SGSN, the GGSN of first user terminal attaching, and the SGSN of the second user terminal ownership, it is sent to the second user terminal。
The concrete transmitting procedure of this second limited broadcast message, can referring between the user terminal described in above-described embodiment 2 by the message transmission procedure of packet domain, be no longer described in detail at this。
Step 503, the second user terminal are after receiving the GGSN PDP context activation success response returned, the IP address of self distribution it is retrieved as from this PDP context activation success response, and use this IP address of distribution as source address, use limited broadcast address as destination address, build the first limited broadcast message。
Step 504, the first limited broadcast message that will build, by SGSN, the GGSN of the second user terminal ownership, and the SGSN of first user terminal attaching, it is sent to first user terminal。
The concrete transmitting procedure of this first limited broadcast message, can referring between the user terminal described in above-described embodiment 2 by the message transmission procedure of packet domain, be no longer described in detail at this。
Above-mentioned steps 501 and step 502, and between above-mentioned steps 503 and step 504, it does not have strict sequencing。
Step 505, first user terminal are after receiving the first limited broadcast message that the second user terminal sends, therefrom obtain the IP address of distribution during the second user terminal PDP context activation, and use this IP address as destination address, build and need to be sent to the data message of the second user terminal。
Step 506, need to be sent to this data message of the second user terminal by building, by SGSN, the GGSN of first user terminal attaching, and the SGSN of the second user terminal ownership, it is sent to the second user terminal。
Step 507, the second user terminal are after receiving the second limited broadcast message that first user terminal sends, therefrom obtain the IP address of distribution during first user terminal PDP context activation, and use this IP address as destination address, build and need to be sent to the data message of first user terminal。
Step 508, need to be sent to this data message of first user terminal by building, by SGSN, the GGSN of the second user terminal ownership, and the SGSN of first user terminal attaching, be sent to first user terminal。
Above-mentioned steps 505 and step 506, and between above-mentioned steps 507 and step 508, it does not have strict sequencing。
Embodiment 4:
Based on same inventive concept, according to the tunnel binding method that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention 4 additionally provides a kind of Gateway GPRS Support Node GGSN, and its structural representation as shown in Figure 6, specifically includes:
First receives unit 601, for receiving the caller packet data protocol PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in the request of described caller PDP context activation；
First processing unit 602, for the terminal iidentification according to described called user terminal, triggers described called user terminal and initiates the request of called PDP context activation；
Second processing unit 603, for carrying out PDP context activation process for described call subscriber terminal and described called user terminal, obtain the caller GPRS Tunnel Protocol GTP tunnel mark distributed for described call subscriber terminal, and the called GTP tunnel distributed for described called user terminal identifies；
Binding unit 604, for setting up the corresponding relation of described caller GTP tunnel mark and described called GTP tunnel mark。
Further, the first processing unit 602, specifically for the terminal iidentification according to described called user terminal, inquire about the Serving GPRS Support Node SGSN of described called user terminal ownership to attaching position register HLR；
By the SGSN that described called user terminal belongs to, send PDP context activation notification message to described called user terminal。
Further, second processing unit 603, specifically for carrying out PDP context activation process for described call subscriber terminal and described called user terminal, obtain the descending GTP tunnel mark of the caller that SGSN is the distribution of described call subscriber terminal of described call subscriber terminal ownership, described GGSN is the up GTP tunnel mark of caller of described call subscriber terminal distribution, the SGSN of described called user terminal ownership is the called descending GTP tunnel mark of described called user terminal distribution, and the called up GTP tunnel mark that described GGSN is the distribution of described called user terminal；
Binding unit 604, specifically for setting up the corresponding relation of described caller up GTP tunnel mark and described called descending GTP tunnel mark, and sets up described called up GTP tunnel mark and the corresponding relation of the descending GTP tunnel mark of described caller。
Embodiment 5:
Based on same inventive concept, according to the message transmitting method in the packet domain that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention 5 additionally provides a kind of GGSN based on above-mentioned corresponding relation, and its structural representation is as it is shown in fig. 7, specifically include:
Second receives unit 701, for the first GTP tunnel set up between the SGSN by first user terminal attaching, receive this SGSN the first GTP tunnel message sent, described first GTP tunnel message is packaged with described first user terminal and is sent to the message of the second user terminal；Wherein, described first user terminal is described call subscriber terminal, and described second user terminal is described called user terminal；Or, described first user terminal is described called user terminal, and described second user terminal is described call subscriber terminal；
Acquiring unit 702, for obtaining the first GTP tunnel mark of described first GTP tunnel from described first GTP tunnel message；
Query unit 703, for inquiring about the described corresponding relation of caller GTP tunnel mark and called GTP tunnel mark, it is determined that the second GTP tunnel mark corresponding with the described first GTP tunnel mark obtained；
Encapsulation unit 704, is used for using described second GTP tunnel mark, is packaged processing to the described message of encapsulation in described first GTP tunnel message, obtains the second GTP tunnel message；
First transmitting element 705, for the second GTP tunnel by setting up between the SGSN of described second user terminal ownership, is sent to the SGSN of described second user terminal ownership by described second GTP tunnel message。
Further, second receives unit 701, specifically for the first up GTP tunnel set up between the SGSN by first user terminal attaching, receives this SGSN the first up GTP tunnel message sent；
Acquiring unit 702, specifically for obtaining the first up GTP tunnel mark of described first up GTP tunnel from described first up GTP tunnel message；
Query unit 703, specifically for inquiring about the corresponding relation of up GTP tunnel mark and descending GTP tunnel mark, it is determined that the second descending GTP tunnel mark corresponding with the described first up GTP tunnel mark obtained；
Encapsulation unit 704, specifically for using described second descending GTP tunnel mark, is packaged processing to the described message of encapsulation in described first up GTP tunnel message, obtains the second descending GTP tunnel message；
First transmitting element 705, specifically for the second descending GTP tunnel by setting up between the SGSN of described second user terminal ownership, is sent to the SGSN of described second user terminal ownership by described second descending GTP tunnel message。
Embodiment 6:
Based on same inventive concept, according to the message transmitting method in the packet domain that the above embodiment of the present invention provides, correspondingly, the embodiment of the present invention 6 additionally provides a kind of user terminal based on the message transmitting method in above-mentioned packet domain, its structural representation as shown in Figure 8, specifically includes:
3rd receives unit 801, for receiving second user terminal SGSN by described second user terminal ownership, GGSN, and the SGSN of this user terminal ownership, the the first limited broadcast message sent, the IP address of distribution when the source address of described first limited broadcast message is described second user terminal PDP context activation, destination address is wired broadcasting address；
First message construction unit 802, is used for using the IP address of distribution during the described second user terminal PDP context activation carried in described first limited broadcast message, as destination address, builds data message；
Second transmitting element 803, for the described data message that will build, by the SGSN that this user terminal belongs to, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
Further, above-mentioned user terminal, also include:
Second message construction unit 804, is used for using the IP address of distribution during this user terminal PDP context activation as source address, to use limited broadcast address as destination address, build the second limited broadcast message；
Second transmitting element 803, is additionally operable to described second limited broadcast message, by the SGSN that this user terminal belongs to, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
In sum, the scheme that the embodiment of the present invention provides, including: GGSN receives the caller PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in the request of this caller PDP context activation；And the terminal iidentification according to called user terminal, trigger called user terminal and initiate the request of called PDP context activation；And carry out PDP context activation process for call subscriber terminal and called user terminal, obtain the caller GTP tunnel mark for call subscriber terminal distribution and the called GTP tunnel mark for called user terminal distribution；And set up the corresponding relation of this caller GTP tunnel mark and this called GTP tunnel mark。
Accordingly, when carrying out message transmissions in the packet domain, including: the GGSN the first GTP tunnel by setting up between the SGSN of first user terminal attaching, receive this SGSN the first GTP tunnel message sent, the first GTP tunnel message is packaged with first user terminal and is sent to the message of the second user terminal；Wherein, first user terminal is call subscriber terminal, and the second user terminal is called user terminal；Or, first user terminal is called user terminal, and the second user terminal is call subscriber terminal；And from the first GTP tunnel message, obtain the first GTP tunnel mark of the first GTP tunnel；And inquire about the corresponding relation of caller GTP tunnel mark and called GTP tunnel mark, it is determined that the second GTP tunnel mark corresponding with the first GTP tunnel mark obtained；And use the second GTP tunnel mark, it is packaged processing to the message of encapsulation in the first GTP tunnel message, obtains the second GTP tunnel message；And the second GTP tunnel set up between the SGSN by the second user terminal ownership, the second GTP tunnel message is sent to the SGSN of the second user terminal ownership。The scheme adopting the embodiment of the present invention to provide, improves the efficiency carried out data transmission between user terminal by packet domain。
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art。So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification。
Claims (12)
1. the message transmitting method in a packet domain, it is characterised in that including:
Gateway GPRS Support Node GGSN receives the caller packet data protocol PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in the request of described caller PDP context activation；
Terminal iidentification according to described called user terminal, triggers described called user terminal and initiates the request of called PDP context activation；
Carry out PDP context activation process for described call subscriber terminal and described called user terminal, obtain the caller GPRS Tunnel Protocol GTP tunnel mark distributed for described call subscriber terminal, and the called GTP tunnel distributed for described called user terminal identifies；
Set up the corresponding relation of described caller GTP tunnel mark and described called GTP tunnel mark；
The described GGSN the first GTP tunnel by setting up between the SGSN of first user terminal attaching, receives this SGSN the first GTP tunnel message sent, is packaged with described first user terminal and is sent to the message of the second user terminal in described first GTP tunnel message；Wherein, described first user terminal is described call subscriber terminal, and described second user terminal is described called user terminal；Or, described first user terminal is described called user terminal, and described second user terminal is described call subscriber terminal；
The first GTP tunnel mark of described first GTP tunnel is obtained from described first GTP tunnel message；
The described corresponding relation that inquiry caller GTP tunnel mark identifies with called GTP tunnel, it is determined that the second GTP tunnel mark corresponding with the described first GTP tunnel mark obtained；
Use described second GTP tunnel mark, be packaged processing to the described message of encapsulation in described first GTP tunnel message, obtain the second GTP tunnel message；
By the second GTP tunnel set up between the SGSN of described second user terminal ownership, described second GTP tunnel message is sent to the SGSN of described second user terminal ownership。
2. the method for claim 1, it is characterised in that the terminal iidentification according to described called user terminal, triggers described called user terminal and initiates the request of called PDP context activation, specifically include:
Terminal iidentification according to described called user terminal, inquires about the Serving GPRS Support Node SGSN of described called user terminal ownership to attaching position register HLR；
By the SGSN that described called user terminal belongs to, send PDP context activation notification message to described called user terminal。
3. the method for claim 1, it is characterized in that, PDP context activation process is carried out for described call subscriber terminal and described called user terminal, obtain the caller GTP tunnel mark distributed for described call subscriber terminal, identify with the called GTP tunnel distributed for described called user terminal, particularly as follows:
PDP context activation process is carried out for described call subscriber terminal and described called user terminal, obtain the descending GTP tunnel mark of the caller that SGSN is the distribution of described call subscriber terminal of described call subscriber terminal ownership, described GGSN is the up GTP tunnel mark of caller of described call subscriber terminal distribution, the SGSN of described called user terminal ownership is the called descending GTP tunnel mark of described called user terminal distribution, and the called up GTP tunnel mark that described GGSN is the distribution of described called user terminal；
Set up described caller GTP tunnel mark and the corresponding relation of described called GTP tunnel mark, specifically include:
Set up the corresponding relation of described caller up GTP tunnel mark and described called descending GTP tunnel mark, and set up described called up GTP tunnel mark and the corresponding relation of the descending GTP tunnel mark of described caller。
4. the method for claim 1, it is characterised in that the GGSN the first GTP tunnel by setting up between the SGSN of first user terminal attaching, receives this SGSN the first GTP tunnel message sent, particularly as follows:
The GGSN the first up GTP tunnel by setting up between the SGSN of first user terminal attaching, receives this SGSN the first up GTP tunnel message sent；
The first GTP tunnel mark of described first GTP tunnel is obtained from described first GTP tunnel message, particularly as follows:
The first up GTP tunnel mark of described first up GTP tunnel is obtained from described first up GTP tunnel message；
The corresponding relation that inquiry caller GTP tunnel mark identifies with called GTP tunnel, it is determined that the second GTP tunnel mark corresponding with the described first GTP tunnel mark obtained, particularly as follows:
Inquire about the corresponding relation of up GTP tunnel mark and descending GTP tunnel mark, it is determined that the second descending GTP tunnel mark corresponding with the described first up GTP tunnel mark obtained；
Use described second GTP tunnel mark, be packaged processing to the described message of encapsulation in described first GTP tunnel message, obtain the second GTP tunnel message, particularly as follows:
Use described second descending GTP tunnel mark, be packaged processing to the described message of encapsulation in described first up GTP tunnel message, obtain the second descending GTP tunnel message；
By the second GTP tunnel set up between the SGSN of described second user terminal ownership, described second GTP tunnel message is sent to the SGSN of described second user terminal ownership, particularly as follows:
By the second descending GTP tunnel set up between the SGSN of described second user terminal ownership, described second descending GTP tunnel message is sent to the SGSN of described second user terminal ownership。
5. one kind based on the message transmitting method in the packet domain of method described in claim 1, it is characterised in that including:
First user terminal receives second user terminal SGSN by described second user terminal ownership, GGSN, and the SGSN of described first user terminal attaching, the the first limited broadcast message sent, the IP address of distribution when the source address of described first limited broadcast message is described second user terminal PDP context activation, destination address is limited broadcast address；
Use the IP address of distribution during the described second user terminal PDP context activation carried in described first limited broadcast message, as destination address, build data message；
The described data message that will build, by the SGSN of described first user terminal attaching, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
6. method as claimed in claim 5, it is characterised in that also include:
First user terminal uses the IP address distributed during PDP context activation as source address, uses limited broadcast address as destination address, builds the second limited broadcast message；
By described second limited broadcast message, by the SGSN of described first user terminal attaching, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
7. a Gateway GPRS Support Node GGSN, it is characterised in that including:
First receives unit, for receiving the caller packet data protocol PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in the request of described caller PDP context activation；
First processing unit, for the terminal iidentification according to described called user terminal, triggers described called user terminal and initiates the request of called PDP context activation；
Second processing unit, for carrying out PDP context activation process for described call subscriber terminal and described called user terminal, obtain the caller GPRS Tunnel Protocol GTP tunnel mark distributed for described call subscriber terminal, and the called GTP tunnel distributed for described called user terminal identifies；
Binding unit, for setting up the corresponding relation of described caller GTP tunnel mark and described called GTP tunnel mark；
Second receives unit, for the first GTP tunnel set up between the SGSN by first user terminal attaching, receive this SGSN the first GTP tunnel message sent, described first GTP tunnel message is packaged with described first user terminal and is sent to the message of the second user terminal；Wherein, described first user terminal is described call subscriber terminal, and described second user terminal is described called user terminal；Or, described first user terminal is described called user terminal, and described second user terminal is described call subscriber terminal；
Acquiring unit, for obtaining the first GTP tunnel mark of described first GTP tunnel from described first GTP tunnel message；
Query unit, for inquiring about the described corresponding relation of caller GTP tunnel mark and called GTP tunnel mark, it is determined that the second GTP tunnel mark corresponding with the described first GTP tunnel mark obtained；
Encapsulation unit, is used for using described second GTP tunnel mark, is packaged processing to the described message of encapsulation in described first GTP tunnel message, obtains the second GTP tunnel message；
First transmitting element, for the second GTP tunnel by setting up between the SGSN of described second user terminal ownership, is sent to the SGSN of described second user terminal ownership by described second GTP tunnel message。
8. GGSN as claimed in claim 7, it is characterised in that described first processing unit, specifically for the terminal iidentification according to described called user terminal, inquires about the Serving GPRS Support Node SGSN of described called user terminal ownership to attaching position register HLR；
By the SGSN that described called user terminal belongs to, send PDP context activation notification message to described called user terminal。
9. GGSN as claimed in claim 7, it is characterized in that, described second processing unit, specifically for carrying out PDP context activation process for described call subscriber terminal and described called user terminal, obtain the descending GTP tunnel mark of the caller that SGSN is the distribution of described call subscriber terminal of described call subscriber terminal ownership, described GGSN is the up GTP tunnel mark of caller of described call subscriber terminal distribution, the SGSN of described called user terminal ownership is the called descending GTP tunnel mark of described called user terminal distribution, with the called up GTP tunnel mark that described GGSN is the distribution of described called user terminal；
Described binding unit, specifically for setting up the corresponding relation of described caller up GTP tunnel mark and described called descending GTP tunnel mark, and sets up described called up GTP tunnel mark and the corresponding relation of the descending GTP tunnel mark of described caller。
10. GGSN as claimed in claim 7, it is characterised in that described second receives unit, specifically for the first up GTP tunnel set up between the SGSN by first user terminal attaching, receives this SGSN the first up GTP tunnel message sent；
Described acquiring unit, specifically for obtaining the first up GTP tunnel mark of described first up GTP tunnel from described first up GTP tunnel message；
Described query unit, specifically for inquiring about the corresponding relation of up GTP tunnel mark and descending GTP tunnel mark, it is determined that the second descending GTP tunnel mark corresponding with the described first up GTP tunnel mark obtained；
Described encapsulation unit, specifically for using described second descending GTP tunnel mark, is packaged processing to the described message of encapsulation in described first up GTP tunnel message, obtains the second descending GTP tunnel message；
Described first transmitting element, specifically for the second descending GTP tunnel by setting up between the SGSN of described second user terminal ownership, is sent to the SGSN of described second user terminal ownership by described second descending GTP tunnel message。
11. the user terminal based on method described in claim 1, it is characterised in that including:
3rd receives unit, for receiving second user terminal SGSN by described second user terminal ownership, GGSN, and the SGSN of this user terminal ownership, the the first limited broadcast message sent, the IP address of distribution when the source address of described first limited broadcast message is described second user terminal PDP context activation, destination address is limited broadcast address；
First message construction unit, is used for using the IP address of distribution during the described second user terminal PDP context activation carried in described first limited broadcast message, as destination address, builds data message；
Second transmitting element, for the described data message that will build, by the SGSN that this user terminal belongs to, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
12. user terminal as claimed in claim 11, it is characterised in that also include:
Second message construction unit, is used for using the IP address of distribution during this user terminal PDP context activation as source address, to use limited broadcast address as destination address, build the second limited broadcast message；
Described second transmitting element, is additionally operable to described second limited broadcast message, by the SGSN that this user terminal belongs to, described GGSN, and the SGSN of described second user terminal ownership, it is sent to described second user terminal。
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