CN103369592A - Tunnel binding method, message transmission method in packet domain and related equipment - Google Patents
Tunnel binding method, message transmission method in packet domain and related equipment Download PDFInfo
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Abstract
The invention discloses a tunnel binding method, a message transmission method in a packet domain and related equipment. The tunnel binding method comprises the following steps: a GGSN receives a calling PDP context activation request of a calling user terminal, wherein the calling PDP context activation request carries a terminal identifier of a called user terminal; the GGSN triggers the called user terminal to initiate a called PDP context activation request according to the terminal identifier of the called user terminal; the GGSN carries out PDP context activation processing for the calling user terminal and the called user terminal to obtain a calling GTP tunnel identifier assigned for the calling user terminal and a called GTP tunnel identifier assigned for the called user terminal; and the GGSN establishes a corresponding relationship between the calling GTP tunnel identifier and the called GTP tunnel identifier. Therefore, a report between the user terminals can be transmitted in a packet domain based on the established corresponding relationship, and the efficiency of data transmission between the user terminals through the packet domain is improved.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to message transmitting method and relevant device in a kind of tunnel binding method, the packet domain.
Background technology
At present, at GPRS (General Packet Radio Service, general packet radio service) in the network, by SGSN (Serving GPRS Support Node, Serving GPRS Support Node), GGSN (Gateway GPRS Support Node, Gateway GPRS Support Node) and DNS (Domain Name System, domain name system) equipment such as, can provide (the Internet Protocol based on IP for user terminal, Internet protocol) packet switch domain service, process is as follows:
User terminal is when initiatively accessing the external packet data network, at first pass through wireless access network with PDP (Packet Data Protocol, packet data protocol) the context activation request is sent to the SGSN that self belongs to, SGSN is according to the information of carrying in this PDP context activation request, obtain corresponding GGSN from dns resolution, and this PDP context activation request is sent to this GGSN, carrying out PDP context activation by GGSN processes, set up a bearing link from this user terminal to GGSN, so that follow-up this user terminal can be based on this bearing link access external data network.
According to the existing standard agreement, user terminal is by in the process of GPRS network accessing group data net, and setting up for user terminal between from SGSN to GGSN has GTP (GPRS Tunnel Protocol, GPRS Tunnel Protocol) tunnel.GTP tunnel terminates at GGSN, is isolated the original message of user terminal transmission from the channel message that receives by GTP tunnel by GGSN, and transmits to Packet Data Network.
In the scheme of above-mentioned user terminal by packet domain core network access external packet data network, a user terminal can't directly be accessed another user terminal by packet domain, can pass through the packet domain direct communication for making between the user terminal, existing technical scheme is the mode by the private server transfer, for example:
When sending multimedia message between the user terminal, multimedia message is from the user terminal of transmit leg, through GPRS core net and WAP (Wireless Application Protocol, WAP (wireless application protocol)) gateway, be delivered to multimedia message server, and store at multimedia message server, then notify recipient's user terminal initiatively to download with short message mode and obtain.
In the application of instant communication traffic, the service customer end on the user terminal must sign in to service server before use, registers the information such as its address and state.The data of transmitting between the user terminal, need the core net through GPRS, reach on the service server that is in the external packet data network, temporarily store data content by service server, behind the address that inquires recipient's user terminal, pass through again the GPRS core net the user terminal of data retransmission to the recipient.
In the scheme that between the terminal of above-mentioned family, communicates by packet domain employing private server transfer mode, because the data of transmitting between the user terminal all need to carry out transfer through private server, reduced the efficient of transfer of data.
Summary of the invention
The embodiment of the invention provides message transmitting method and the relevant device in a kind of tunnel binding method, the packet domain, carries out the low problem of data transmission efficiency in order to solve between the user terminal that exists in the prior art by packet domain.
The embodiment of the invention provides a kind of tunnel binding method, comprising:
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;
According to the terminal iidentification of described called user terminal, trigger described called user terminal and initiate called PDP context activation request;
Carry out the PDP context activation processing for described call subscriber terminal and described called user terminal, the caller GPRS Tunnel Protocol GTP tunnel that obtains distributing into described call subscriber terminal identifies, and is the called GTP tunnel sign that described called user terminal distributes;
Set up the corresponding relation of described caller GTP tunnel sign and described called GTP tunnel sign.
It is a kind of based on the message transmitting method in the packet domain of the corresponding relation in the above-mentioned tunnel binding method that the embodiment of the invention also provides, and comprising:
GGSN by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the message that described first user terminal sends to the second user terminal in described the first GTP tunnel message; Wherein, described first user terminal is described call subscriber terminal, and described the second user terminal is described called user terminal; Perhaps, described first user terminal is described called user terminal, and described the second user terminal is described call subscriber terminal;
From described the first GTP tunnel message, obtain the first GTP tunnel sign of described the first GTP tunnel;
Inquiry caller GTP tunnel sign and the described corresponding relation that called GTP tunnel identifies are determined the second GTP tunnel sign corresponding with described the first GTP tunnel sign of obtaining;
Use described the second GTP tunnel sign, the described message that encapsulates in described the first GTP tunnel message is carried out encapsulation process, obtain the second GTP tunnel message;
By and the SGSN of described the second user terminal ownership between the second GTP tunnel of setting up, described the second GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
The embodiment of the invention also provides the message transmitting method in a kind of packet domain, comprising:
The first user terminal receives the second user terminal by the SGSN of described the second user terminal ownership, GGSN, and the SGSN of described first user terminal attaching, the the first limited broadcast message that sends, the IP address of distributing when the source address of described the first limited broadcast message is described the second user terminal PDP context activation, destination address are the wired broadcasting address;
The IP address of distributing when using described the second user terminal PDP context activation that carries in described the first limited broadcast message as destination address, makes up data message;
With the described data message that makes up, by the SGSN of described first user terminal attaching, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
The embodiment of the invention also provides a kind of Gateway GPRS Support Node GGSN, comprising:
The first receiving element is used 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;
The first processing unit is used for the terminal iidentification according to described called user terminal, triggers described called user terminal and initiates called PDP context activation request;
The second processing unit, be used for carrying out the PDP context activation processing for described call subscriber terminal and described called user terminal, the caller GPRS Tunnel Protocol GTP tunnel that obtains distributing for described call subscriber terminal identifies, and is the called GTP tunnel sign that described called user terminal distributes;
The binding unit is used for setting up described caller GTP tunnel and identifies the corresponding relation that identifies with described called GTP tunnel.
The embodiment of the invention also provides a kind of GGSN based on above-mentioned corresponding relation, comprising:
The second receiving element, be used for by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the message that described first user terminal sends to the second user terminal in described the first GTP tunnel message; Wherein, described first user terminal is described call subscriber terminal, and described the second user terminal is described called user terminal; Perhaps, described first user terminal is described called user terminal, and described the second user terminal is described call subscriber terminal;
Acquiring unit is for the first GTP tunnel sign of obtaining described the first GTP tunnel from described the first GTP tunnel message;
Query unit is used for inquiry caller GTP tunnel sign and the described corresponding relation that called GTP tunnel identifies, and determines the second GTP tunnel sign corresponding with described the first GTP tunnel sign of obtaining;
Encapsulation unit is used for using described the second GTP tunnel sign, and the described message that encapsulates in described the first GTP tunnel message is carried out encapsulation process, obtains the second GTP tunnel message;
The first transmitting element, be used for by and the SGSN of described the second user terminal ownership between the second GTP tunnel of setting up, described the second GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
The embodiment of the invention also provides a kind of user terminal, comprising:
The 3rd receiving element, be used for receiving the second user terminal by the SGSN of described the second user terminal ownership, GGSN, and the SGSN of this user terminal ownership, the the first limited broadcast message that sends, the IP address of distributing when the source address of described the first limited broadcast message is described the second user terminal PDP context activation, destination address are the wired broadcasting address;
The first message construction unit, the IP address of distributing when being used for using described the second user terminal PDP context activation that described the first limited broadcast message carries as destination address, makes up data message;
The second transmitting element, for the described data message that will make up, by the SGSN of this user terminal ownership, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
Beneficial effect of the present invention comprises:
In the method that the embodiment of the invention provides, call subscriber terminal will and called user terminal between when carrying out transfer of data by packet domain, carried the terminal iidentification of called user terminal in the caller PDP context activation request of initiating, GGSN in the core net is according to the terminal iidentification of this called user terminal, trigger called user terminal and initiate called PDP context activation request, and carry out PDP context activation for call subscriber terminal and called user terminal and process, the caller GTP tunnel that obtains distributing for call subscriber terminal identifies, with the called GTP tunnel sign of distributing for called user terminal, and the corresponding relation of setting up this caller GTP tunnel sign and called GTP tunnel sign.Accordingly, when between follow-up this call subscriber terminal and called user terminal, carrying out transfer of data by packet domain, GGSN by and SGSN as the first user terminal attaching of transmit leg between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the first user terminal in the first GTP tunnel message and send to message as the second user terminal of recipient, and the first GTP tunnel that obtains the first GTP tunnel from the first GTP tunnel message identifies, inquire about above-mentioned corresponding relation, the second GTP tunnel sign that the first GTP tunnel sign of determining and obtaining is corresponding, and use this second GTP tunnel to identify, message to transmission carries out encapsulation process, obtain the second GTP tunnel message, then by and the SGSN of the second user terminal ownership between the second GTP tunnel of setting up, the second GTP tunnel message is sent to the SGSN of the second user terminal ownership, thereby realize obtaining the message that encapsulates in the second GTP tunnel message by the SGSN of the second user terminal ownership, and be forwarded to the second user terminal, namely realized directly carrying out transfer of data by packet domain in the middle of the user terminal, compared to existing technology, no longer need private server to carry out transfer, improved the efficient of transfer of data.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, and consists of the part of specification, is used from explanation the present invention with the embodiment of the invention one, is not construed as limiting the invention.In the accompanying drawings:
The flow chart of the tunnel binding method that Fig. 1 provides for the embodiment of the invention;
The flow chart based on the message transmitting method in the packet domain of the corresponding relation of setting up in the above-mentioned tunnel binding method that Fig. 2 provides for the embodiment of the invention;
The flow chart of the tunnel binding method that provides in the embodiment of the invention 1 is provided Fig. 3;
The flow chart of the message transmitting method in the packet domain that provides in the embodiment of the invention 2 is provided Fig. 4;
The flow chart of the message transmitting method in the packet domain that provides in the embodiment of the invention 3 is provided Fig. 5;
The structural representation of the GGSN that provides in the embodiment of the invention 4 is provided Fig. 6;
The structural representation of the GGSN that provides in the embodiment of the invention 5 is provided Fig. 7;
The structural representation of the user terminal that provides in the embodiment of the invention 6 is provided Fig. 8.
Embodiment
Improve the implementation that carries out the efficient of transfer of data between the user terminal by packet domain in order to provide, the embodiment of the invention provides message transmitting method and the relevant device in a kind of tunnel binding method, the packet domain, below in conjunction with Figure of description the preferred embodiments of the present invention are described, be to be understood that, preferred embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.And in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention provides a kind of tunnel binding method, as shown in Figure 1, comprising:
Step 101, GGSN receive the caller PDP context activation request of call subscriber terminal, carry the terminal iidentification of called user terminal in this caller PDP context activation request.
Step 102, according to the terminal iidentification of called user terminal, trigger called user terminal and initiate called PDP context activation request.
Step 103, carry out PDP context activation for call subscriber terminal and called user terminal and process, obtain the caller GTP tunnel sign of distributing into call subscriber terminal, and the called GTP tunnel that distributes for called user terminal identifies.
Step 104, set up this caller GTP tunnel sign and the corresponding relation that should called GTP tunnel identifies.
Accordingly, based on the corresponding relation of setting up in the above-mentioned tunnel binding method, the embodiment of the invention also provides the message transmitting method in a kind of packet domain, as shown in Figure 2, comprising:
Step 201, GGSN by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the message that the first user terminal sends to the second user terminal in the first GTP tunnel message; Wherein, the first user terminal is call subscriber terminal, and the second user terminal is called user terminal; Perhaps, the first user terminal is called user terminal, and the second user terminal is call subscriber terminal.
Step 202, from the first GTP tunnel message, obtain the first GTP tunnel sign of the first GTP tunnel.
Step 203, inquiry caller GTP tunnel sign and the corresponding relation that called GTP tunnel identifies are determined the second GTP tunnel sign corresponding with the first GTP tunnel sign of obtaining.
Step 204, use the second GTP tunnel sign are carried out encapsulation process to the message that encapsulates in the first GTP tunnel message, obtain the second GTP tunnel message.
Step 205, by and the SGSN of the second user terminal ownership between the second GTP tunnel of setting up, the second GTP tunnel message is sent to the SGSN of the second user terminal ownership.
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 tunnel binding side that provides in the embodiment of the invention 1 is provided Fig. 3, specifically comprises following treatment step:
Step 301, call subscriber terminal send the PDP context activation request to the SGSN that self belongs to, for ease of distinguishing, this PDP context activation request is called the request of caller PDP context activation, carries the terminal iidentification of called user terminal in this caller PDP context activation request.
Concrete, can be with the terminal iidentification of called user terminal, APN in the request of caller PDP context activation (Access Point Name, access point) carries in the domain name, for example, the APN domain name is comprised of Subscriber Number MSISDN (Mobile Subscriber International ISDN/PSTN number) and the special-purpose 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 of carrying, and based on the special-purpose APN in the APN domain name, parsing obtains corresponding GGSN address, and transmit this caller PDP context activation request to GGSN corresponding to this GGSN address, and in the caller PDP context activation request of transmitting, carry the terminal iidentification of call subscriber terminal, for example, the MSISDN of call subscriber terminal, or IMSI (International Mobile Subscriber Identification Number, international mobile subscriber identity).
In this step, this SGSN can also distribute caller GTP tunnel sign for this call subscriber terminal, and this caller GTP tunnel sign that will distribute sends to GGSN.
Concrete, when adopting GTPv1, GTP tunnel is divided into up GTP tunnel and descending GTP tunnel, accordingly, the GTP tunnel tag slot is divided into up GTP tunnel sign and descending GTP tunnel sign, so, what SGSN distributed is the descending GTP tunnel sign of caller, i.e. the descending TEID-U of caller; When adopting GTPv0, do not distinguish up GTP tunnel and descending GTP tunnel, so, the caller GTP tunnel sign that SGSN distributes, for and GGSN between the GTP tunnel sign of unique GTP tunnel of setting up for call subscriber terminal, this caller GTP tunnel sign is also referred to as caller TID.
Step 303, GGSN send at this SGSN that receives the 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 that carries, and according to this terminal iidentification that obtains, inquire about the SGSN of this called user terminal ownership to attaching position register HLR.
In this step, GGSN can also receive that this SGSN of call subscriber terminal ownership sends, and is the caller GTP tunnel sign that call subscriber terminal distributes, and records this caller GTP tunnel sign.
In this step, GGSN can also carry out other handling process based on the caller PDP context activation request that receives, and for example, the special-purpose APN in the APN domain name of carrying such as is checked at the processing, this is the handling process in the present standard agreement, no longer is described in detail at this.
The SGSN that step 304, GGSN belong to by the called user terminal that inquires, send the PDP context activation notification message to called user terminal, can carry the terminal iidentification of call subscriber terminal in this PDP context activation notification message, such as the MSISDN of call subscriber terminal.
Step 305, called user terminal are after receiving this PDP context activation notification message, determine the call subscriber terminal wish and self carry out transfer of data by packet domain, and after definite and call subscriber terminal carry out transfer of data by packet domain, make up the PDP context activation request of self, for ease of distinguishing, this PDP context activation request is called called PDP context activation request, and sends this called PDP context activation request that makes up to the SGSN that self belongs to.
Concrete, the terminal iidentification of call subscriber terminal can be carried in the APN domain name in called PDP context activation request, for example, the APN domain name is comprised of MSISDN and the special-purpose APN of call subscriber terminal.
The SGSN of step 306, called user terminal ownership is after receiving called PDP context activation request, transmit this called PDP context activation request to this GGSN, and in the called PDP context activation request of transmitting, carry the terminal iidentification of called user terminal, for example, the MSISDN of called user terminal, or IMSI.
In this step, this SGSN can also distribute called GTP tunnel sign for this called user terminal, and this called GTP tunnel sign that will distribute sends to this GGSN.
Concrete, when adopting GTPv1, that this SGSN distributes is called descending GTP tunnel sign, i.e. called descending TEID-U; When adopting GTPv0, the called GTP tunnel that this SGSN distributes be designated and GGSN between for the unique tunnel of called user terminal, this called GTP tunnel sign is also referred to as called TID.
Step 307, GGSN send at this SGSN that receives the 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 that carries, thereby definite call subscriber terminal and called user terminal all ask to activate PDP Context separately, and all prepare to carry out transfer of data with the other side by packet domain.
Carry out the PDP context activation processing for call subscriber terminal and called user terminal, for example be respectively call subscriber terminal and called user terminal distributing IP address (may also be referred to as pdp address), such as the IPv4 address; And for example when adopting GTPv1, also will for call subscriber terminal distributes the up GTP tunnel sign of caller, for distributing called up GTP tunnel, called user terminal identify.
Other concrete handling process can referring to prior art, no longer be described in detail at this.
Step 308, carrying out after PDP context activation processes, with the caller GTP tunnel sign that obtains distributing for call subscriber terminal, with the called GTP tunnel sign of distributing for called user terminal, in this step, then set up the corresponding relation of this caller GTP tunnel sign and called GTP tunnel sign.
Concrete, when adopting GTPv0, what obtain is that the SGSN that call subscriber terminal belongs to is the caller GTP tunnel sign that call subscriber terminal distributes, the SGSN that belongs to called user terminal is the called GTP tunnel sign that called user terminal distributes, and the corresponding relation of then setting up is the corresponding relation of this caller GTP tunnel sign and called GTP tunnel sign.
When adopting GTPv1, what obtain is that the SGSN that call subscriber terminal belongs to is the descending GTP tunnel sign of caller that call subscriber terminal distributes, GGSN is the up GTP tunnel sign of caller that call subscriber terminal distributes, the SGSN of called user terminal ownership is the called descending GTP tunnel sign that called user terminal distributes, and GGSN is the called up GTP tunnel sign that called user terminal distributes; Accordingly, when setting up corresponding relation, specifically comprise:
Set up the corresponding relation of the up GTP tunnel sign of caller and called descending GTP tunnel sign, and the corresponding relation of setting up called up GTP tunnel sign and the descending GTP tunnel sign of caller.
Step 309, carrying out after PDP context activation processes, also to call subscriber terminal and called user terminal, correspondence is returned the success response of caller PDP context activation and called PDP context activation success response respectively, and the corresponding IP address of distributing into call subscriber terminal of carrying respectively therein, with the IP address of distributing for called user terminal, be used for the message transmissions between follow-up call subscriber terminal and the called user terminal.
Embodiment 2:
Behind the corresponding relation of setting up the GTP tunnel sign between call subscriber terminal and the called user terminal by above-mentioned tunnel binding method, namely can be based on this corresponding relation message transmission between call subscriber terminal and called user terminal, message transmitting method in the packet domain that provides in the embodiment of the invention 2 is provided Fig. 4, wherein, can send message to called user terminal by call subscriber terminal, also can send message to call subscriber terminal by called user terminal, for convenience of description, to be called as the user terminal of transmit leg the first user terminal, to be called as recipient's user terminal the second user terminal, this message transmitting method specifically comprises following treatment step:
Step 401, first user terminal send to needs the message of the second user terminal, by the PDP Context of current activation, send to the SGSN of first user terminal attaching.
This SGSN of step 402, first user terminal attaching uses the first GTP tunnel sign into this first user terminal distribution behind this message that receives the transmission of first user terminal, this message that receives is carried out encapsulation process, obtains the first GTP tunnel message.
Concrete, when adopting GTPv1, use the first up GTP tunnel sign into this first user terminal distribution, this message that receives is carried out encapsulation process, obtain the first up GTP tunnel message.
This SGSN of step 403, first user terminal attaching by with GGSN between first GTP tunnel corresponding with the first user terminal set up, send the first GTP tunnel message to GGSN.
Concrete, when adopting GTPv1, this SGSN of first user terminal attaching by with GGSN between the first up GTP tunnel corresponding with the first user terminal set up, send the first up GTP tunnel message to GGSN.
Step 404, GGSN therefrom obtain the first GTP tunnel sign of the first GTP tunnel after receiving this first GTP tunnel message.
Concrete, when adopting GTPv1, from the first up GTP tunnel message that receives, obtain the first up GTP tunnel sign of the first up GTP tunnel.
In this step, can also obtain the message that will send to the second user terminal that encapsulates in the first GTP tunnel message.
The caller GTP tunnel sign that step 405, GGSN inquiry have been set up and the corresponding relation of called GTP tunnel sign are determined the second GTP tunnel sign corresponding with the first GTP tunnel sign of obtaining.
Concrete, when adopting GTPv1, the up GTP tunnel sign that inquiry has been set up and the corresponding relation of descending GTP tunnel sign are determined the second descending GTP tunnel sign corresponding with the first up GTP tunnel sign of obtaining.
The second GTP tunnel sign that step 406, use are determined, to what obtain from the first GTP tunnel message, the message that will send to the second user terminal carries out encapsulation process, obtains the second GTP tunnel message.
Concrete, when adopting GTPv1, use the second descending GTP tunnel sign of determining, to what obtain from the first up GTP tunnel message, the message that will send to the second user terminal carries out encapsulation process, obtains the second descending GTP tunnel message.
Step 407, by and the SGSN of the second user terminal ownership between the second GTP tunnel of setting up, the second GTP tunnel message that obtains is sent to the SGSN of the second user terminal ownership.
Concrete, when adopting GTPv1, by and the SGSN of the second user terminal ownership between the second descending GTP tunnel of setting up, the second descending GTP tunnel message that obtains is sent to the SGSN of the second user terminal ownership.
This SGSN of step 408, the second user terminal ownership therefrom obtains the message that will send to the second user terminal that carries after receiving this second GTP tunnel message, and this message repeating that will obtain is given the second user terminal.
Concrete, when adopting GTPv1, from the second descending GTP tunnel message that receives, obtain the message that will send to the second user terminal that carries, and this message repeating that will obtain is given the second user terminal.
By the scheme that provides among above-described embodiment 1 and the embodiment 2, when carrying out transfer of data by packet domain between the user terminal, no longer need to carry out transfer through private server, but directly carry out transfer of data by packet domain, namely realize between the user terminal direct communication by packet domain, thereby improved the efficient of transfer of data.
And, in the technology that existing user terminal communicates by packet domain, because IPv4 address depletion, user terminal is dynamically allocated private IP address usually in the GPRS core net, must can be interconnected with the external packet data net through NAT (Network Address Translation, network address translation) address transition.And private server generally all is arranged in the external packet data net, the communication that prior art is carried out between user terminal must relate to the NAT address transition at least 2 times, cause the delay of transfer of data, increased and processed the consumption of resource, and made many application layer business functions limited.
And the such scheme that adopts the embodiment of the invention to provide, GGSN only according to the GTP tunnel sign corresponding relation of having set up, namely can realize the forwarding of message, and not need to resolve the IP address, thereby reduced the delay of transfer of data, and reduced the consumption of processing resource.
Embodiment 3:
Based in the existing standard agreement to the requirement of block domain data message transmissions, the IP address that needs to carry Correspondent Node in the data message of transmission, in order to satisfy this requirement, a kind of message transmitting method of packet domain is also proposed in the embodiment of the invention 3, the method is applied to subscriber terminal side, and based on the GTP tunnel sign corresponding relation of setting up in above-described embodiment 1, and the message transmitting method that provides among the embodiment 2, as shown in Figure 5, specifically comprise following treatment step:
Step 501, first user terminal are after receiving the PDP context activation success response that GGSN returns, from this PDP context activation success response, be retrieved as the IP address of self distributing, and use this IP address of distributing as source address, use the limited broadcast address as destination address, make up the second limited broadcast message.
Step 502, the second limited broadcast message that will make up, by the SGSN of first user terminal attaching, GGSN, and the SGSN of the second user terminal ownership send to the second user terminal.
The concrete transmission course of this second limited broadcast message, can referring between the user terminal of describing in above-described embodiment 2 by the message transmission procedure of packet domain, no longer be described in detail at this.
Step 503, the second user terminal are after receiving the PDP context activation success response that GGSN returns, from this PDP context activation success response, be retrieved as the IP address of self distributing, and use this IP address of distributing as source address, use the limited broadcast address as destination address, make up the first limited broadcast message.
Step 504, the first limited broadcast message that will make up, by the SGSN of the second user terminal ownership, GGSN, and the SGSN of first user terminal attaching send to the first user terminal.
The concrete transmission course of this first limited broadcast message, can referring between the user terminal of describing in above-described embodiment 2 by the message transmission procedure of packet domain, no longer be described in detail at this.
Above-mentioned steps 501 and step 502, and between above-mentioned steps 503 and the step 504, do not have strict sequencing.
Step 505, first user terminal are behind the first limited broadcast message that receives the transmission of the second user terminal, the IP address of distributing when therefrom obtaining the second user terminal PDP context activation, and using this IP address as destination address, structure need to send to the data message of the second user terminal.
Step 506, will make up this data message that need to send to the second user terminal, by the SGSN of first user terminal attaching, GGSN, and the SGSN of the second user terminal ownership send to the second user terminal.
Step 507, the second user terminal are behind the second limited broadcast message that receives the transmission of first user terminal, the IP address of distributing when therefrom obtaining first user terminal PDP context activation, and using this IP address as destination address, structure need to send to the data message of first user terminal.
Step 508, will make up this data message that need to send to the first user terminal, by the SGSN of the second user terminal ownership, GGSN, and the SGSN of first user terminal attaching send to the first user terminal.
Above-mentioned steps 505 and step 506, and between above-mentioned steps 507 and the step 508, do 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 invention 4 also provides a kind of Gateway GPRS Support Node GGSN, and its structural representation specifically comprises as shown in Figure 6:
The first receiving element 601 is used 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;
The first processing unit 602 is used for the terminal iidentification according to described called user terminal, triggers described called user terminal and initiates called PDP context activation request;
The second processing unit 603, be used for carrying out the PDP context activation processing for described call subscriber terminal and described called user terminal, the caller GPRS Tunnel Protocol GTP tunnel that obtains distributing for described call subscriber terminal identifies, and is the called GTP tunnel sign that described called user terminal distributes;
Binding unit 604 is used for setting up described caller GTP tunnel and identifies the corresponding relation that identifies with described called GTP tunnel.
Further, the first processing unit 602, the concrete terminal iidentification that is used for according to described called user terminal is inquired about the Serving GPRS Support Node SGSN of described called user terminal ownership to attaching position register HLR;
SGSN by described called user terminal ownership sends the PDP context activation notification message to described called user terminal.
Further, the second processing unit 603, concrete being used for carried out the PDP context activation processing for described call subscriber terminal and described called user terminal, the SGSN that obtains described call subscriber terminal ownership is the descending GTP tunnel sign of caller that described call subscriber terminal distributes, described GGSN is the up GTP tunnel sign of caller that described call subscriber terminal distributes, the SGSN of described called user terminal ownership is the called descending GTP tunnel sign that described called user terminal distributes, and described GGSN is the called up GTP tunnel sign that described called user terminal distributes;
Binding unit 604, the concrete corresponding relation that is used for setting up the up GTP tunnel sign of described caller and described called descending GTP tunnel sign, and the corresponding relation of setting up described called up GTP tunnel sign and the descending GTP tunnel sign of described caller.
Embodiment 5:
Based on same inventive concept, the message transmitting method in the packet domain that provides according to the above embodiment of the present invention, correspondingly, the embodiment of the invention 5 also provides a kind of GGSN based on above-mentioned corresponding relation, and its structural representation specifically comprises as shown in Figure 7:
The second receiving element 701, be used for by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the message that described first user terminal sends to the second user terminal in described the first GTP tunnel message; Wherein, described first user terminal is described call subscriber terminal, and described the second user terminal is described called user terminal; Perhaps, described first user terminal is described called user terminal, and described the second user terminal is described call subscriber terminal;
Acquiring unit 702 is for the first GTP tunnel sign of obtaining described the first GTP tunnel from described the first GTP tunnel message;
The first transmitting element 705, be used for by and the SGSN of described the second user terminal ownership between the second GTP tunnel of setting up, described the second GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
Further, the second receiving element 701, concrete be used for by and the SGSN of first user terminal attaching between the first up GTP tunnel of setting up, receive the first up GTP tunnel message that this SGSN sends;
Acquiring unit 702, concrete the first up GTP tunnel sign that is used for obtaining from the described first up GTP tunnel message described the first up GTP tunnel;
The first transmitting element 705, concrete be used for by and the SGSN of described the second user terminal ownership between the second descending GTP tunnel of setting up, the described second descending GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
Embodiment 6:
Based on same inventive concept, message transmitting method in the packet domain that provides according to the above embodiment of the present invention, correspondingly, the embodiment of the invention 6 also provides a kind of user terminal based on the message transmitting method in the above-mentioned packet domain, its structural representation specifically comprises as shown in Figure 8:
The 3rd receiving element 801, be used for receiving the second user terminal by the SGSN of described the second user terminal ownership, GGSN, and the SGSN of this user terminal ownership, the the first limited broadcast message that sends, the IP address of distributing when the source address of described the first limited broadcast message is described the second user terminal PDP context activation, destination address are the wired broadcasting address;
The first message construction unit 802, the IP address of distributing when being used for using described the second user terminal PDP context activation that described the first limited broadcast message carries as destination address, makes up data message;
The second transmitting element 803, for the described data message that will make up, by the SGSN of this user terminal ownership, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
Further, above-mentioned user terminal also comprises:
The second message construction unit 804, the IP address of distributing when being used for using this user terminal PDP context activation use the limited broadcast address as destination address as source address, make up the second limited broadcast message;
The second transmitting element 803 also is used for described the second limited broadcast message, and by the SGSN of this user terminal ownership, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
In sum, the scheme that the embodiment of the invention provides comprises: GGSN receives the caller PDP context activation request of call subscriber terminal, carries the terminal iidentification of called user terminal in this caller PDP context activation request; And according to the terminal iidentification of called user terminal, trigger called user terminal and initiate called PDP context activation request; And carry out PDP context activation for call subscriber terminal and called user terminal and process, obtain the caller GTP tunnel sign of distributing into call subscriber terminal, and the called GTP tunnel that distributes for called user terminal identifies; And the corresponding relation of setting up this caller GTP tunnel sign and this called GTP tunnel sign.
Accordingly, when in packet domain, carrying out message transmissions, comprise: GGSN by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the message that the first user terminal sends to the second user terminal in the first GTP tunnel message; Wherein, the first user terminal is call subscriber terminal, and the second user terminal is called user terminal; Perhaps, the first user terminal is called user terminal, and the second user terminal is call subscriber terminal; And the first GTP tunnel that obtains the first GTP tunnel from the first GTP tunnel message identifies; And inquiry caller GTP tunnel sign and the corresponding relation that called GTP tunnel identifies, determine the second GTP tunnel sign corresponding with the first GTP tunnel sign of obtaining; And use the second GTP tunnel sign, and the message that encapsulates in the first GTP tunnel message is carried out encapsulation process, obtain the second GTP tunnel message; And by and the SGSN of the second user terminal ownership between the second GTP tunnel of setting up, the second GTP tunnel message is sent to the SGSN of the second user terminal ownership.The scheme that adopts the embodiment of the invention to provide has improved the efficient of carrying out transfer of data between the user terminal by packet domain.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1. a tunnel binding method is characterized in that, comprising:
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;
According to the terminal iidentification of described called user terminal, trigger described called user terminal and initiate called PDP context activation request;
Carry out the PDP context activation processing for described call subscriber terminal and described called user terminal, the caller GPRS Tunnel Protocol GTP tunnel that obtains distributing into described call subscriber terminal identifies, and is the called GTP tunnel sign that described called user terminal distributes;
Set up the corresponding relation of described caller GTP tunnel sign and described called GTP tunnel sign.
2. the method for claim 1 is characterized in that, according to the terminal iidentification of described called user terminal, triggers described called user terminal and initiates called PDP context activation request, specifically comprises:
According to the terminal iidentification of described called user terminal, inquire about the Serving GPRS Support Node SGSN of described called user terminal ownership to attaching position register HLR;
SGSN by described called user terminal ownership sends the PDP context activation notification message to described called user terminal.
3. the method for claim 1, it is characterized in that, carry out the PDP context activation processing for described call subscriber terminal and described called user terminal, the caller GTP tunnel that obtains distributing for described call subscriber terminal identifies, called GTP tunnel sign with being described called user terminal distribution is specially:
Carry out the PDP context activation processing for described call subscriber terminal and described called user terminal, the SGSN that obtains described call subscriber terminal ownership is the descending GTP tunnel sign of caller that described call subscriber terminal distributes, described GGSN is the up GTP tunnel sign of caller that described call subscriber terminal distributes, the SGSN of described called user terminal ownership is the called descending GTP tunnel sign that described called user terminal distributes, and described GGSN is the called up GTP tunnel sign that described called user terminal distributes;
Set up described caller GTP tunnel sign and the corresponding relation that described called GTP tunnel identifies, specifically comprise:
Set up the corresponding relation of the up GTP tunnel sign of described caller and described called descending GTP tunnel sign, and the corresponding relation of setting up described called up GTP tunnel sign and the descending GTP tunnel sign of described caller.
4. one kind based on the message transmitting method in the packet domain of corresponding relation claimed in claim 1, it is characterized in that, comprising:
GGSN by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the message that described first user terminal sends to the second user terminal in described the first GTP tunnel message; Wherein, described first user terminal is described call subscriber terminal, and described the second user terminal is described called user terminal; Perhaps, described first user terminal is described called user terminal, and described the second user terminal is described call subscriber terminal;
From described the first GTP tunnel message, obtain the first GTP tunnel sign of described the first GTP tunnel;
Inquiry caller GTP tunnel sign and the described corresponding relation that called GTP tunnel identifies are determined the second GTP tunnel sign corresponding with described the first GTP tunnel sign of obtaining;
Use described the second GTP tunnel sign, the described message that encapsulates in described the first GTP tunnel message is carried out encapsulation process, obtain the second GTP tunnel message;
By and the SGSN of described the second user terminal ownership between the second GTP tunnel of setting up, described the second GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
5. method as claimed in claim 4 is characterized in that, GGSN by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be specially:
GGSN by and the SGSN of first user terminal attaching between the first up GTP tunnel of setting up, receive the first up GTP tunnel message that this SGSN sends;
From described the first GTP tunnel message, obtain the first GTP tunnel sign of described the first GTP tunnel, be specially:
From the described first up GTP tunnel message, obtain the first up GTP tunnel sign of described the first up GTP tunnel;
Inquiry caller GTP tunnel sign and the corresponding relation that called GTP tunnel identifies are determined the second GTP tunnel sign corresponding with described the first GTP tunnel sign of obtaining, are specially:
Inquire about up GTP tunnel sign and the corresponding relation that descending GTP tunnel identifies, determine the second descending GTP tunnel sign corresponding with the described first up GTP tunnel sign of obtaining;
Use described the second GTP tunnel sign, the described message that encapsulates in described the first GTP tunnel message carried out encapsulation process, obtain the second GTP tunnel message, be specially:
Use the described second descending GTP tunnel sign, the described message that encapsulates in the described first up GTP tunnel message is carried out encapsulation process, obtain the second descending GTP tunnel message;
By and the SGSN of described the second user terminal ownership between the second GTP tunnel of setting up, described the second GTP tunnel message is sent to the SGSN of described the second user terminal ownership, be specially:
By and the SGSN of described the second user terminal ownership between the second descending GTP tunnel of setting up, the described second descending GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
6. one kind based on the message transmitting method in the packet domain of the described method of claim 4, it is characterized in that, comprising:
The first user terminal receives the second user terminal by the SGSN of described the second user terminal ownership, GGSN, and the SGSN of described first user terminal attaching, the the first limited broadcast message that sends, the IP address of distributing when the source address of described the first limited broadcast message is described the second user terminal PDP context activation, destination address are the wired broadcasting address;
The IP address of distributing when using described the second user terminal PDP context activation that carries in described the first limited broadcast message as destination address, makes up data message;
With the described data message that makes up, by the SGSN of described first user terminal attaching, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
7. method as claimed in claim 6 is characterized in that, also comprises:
The IP address of distributing when the first user terminal is used PDP context activation uses the limited broadcast address as destination address as source address, makes up the second limited broadcast message;
With described the second limited broadcast message, by the SGSN of described first user terminal attaching, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
8. a Gateway GPRS Support Node GGSN is characterized in that, comprising:
The first receiving element is used 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;
The first processing unit is used for the terminal iidentification according to described called user terminal, triggers described called user terminal and initiates called PDP context activation request;
The second processing unit, be used for carrying out the PDP context activation processing for described call subscriber terminal and described called user terminal, the caller GPRS Tunnel Protocol GTP tunnel that obtains distributing for described call subscriber terminal identifies, and is the called GTP tunnel sign that described called user terminal distributes;
The binding unit is used for setting up described caller GTP tunnel and identifies the corresponding relation that identifies with described called GTP tunnel.
9. GGSN as claimed in claim 8 is characterized in that, described the first processing unit, and the concrete terminal iidentification that is used for according to described called user terminal is inquired about the Serving GPRS Support Node SGSN of described called user terminal ownership to attaching position register HLR;
SGSN by described called user terminal ownership sends the PDP context activation notification message to described called user terminal.
10. GGSN as claimed in claim 8, it is characterized in that, described the second processing unit, concrete being used for carried out the PDP context activation processing for described call subscriber terminal and described called user terminal, the SGSN that obtains described call subscriber terminal ownership is the descending GTP tunnel sign of caller that described call subscriber terminal distributes, described GGSN is the up GTP tunnel sign of caller that described call subscriber terminal distributes, the SGSN of described called user terminal ownership is the called descending GTP tunnel sign that described called user terminal distributes, and described GGSN is the called up GTP tunnel sign that described called user terminal distributes;
Described binding unit, the concrete corresponding relation that is used for setting up the up GTP tunnel sign of described caller and described called descending GTP tunnel sign, and the corresponding relation of setting up described called up GTP tunnel sign and the descending GTP tunnel sign of described caller.
11. the GGSN based on corresponding relation claimed in claim 1 is characterized in that, comprising:
The second receiving element, be used for by and the SGSN of first user terminal attaching between the first GTP tunnel of setting up, receive the first GTP tunnel message that this SGSN sends, be packaged with the message that described first user terminal sends to the second user terminal in described the first GTP tunnel message; Wherein, described first user terminal is described call subscriber terminal, and described the second user terminal is described called user terminal; Perhaps, described first user terminal is described called user terminal, and described the second user terminal is described call subscriber terminal;
Acquiring unit is for the first GTP tunnel sign of obtaining described the first GTP tunnel from described the first GTP tunnel message;
Query unit is used for inquiry caller GTP tunnel sign and the described corresponding relation that called GTP tunnel identifies, and determines the second GTP tunnel sign corresponding with described the first GTP tunnel sign of obtaining;
Encapsulation unit is used for using described the second GTP tunnel sign, and the described message that encapsulates in described the first GTP tunnel message is carried out encapsulation process, obtains the second GTP tunnel message;
The first transmitting element, be used for by and the SGSN of described the second user terminal ownership between the second GTP tunnel of setting up, described the second GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
12. GGSN as claimed in claim 11 is characterized in that, described the second receiving element, concrete be used for by and the SGSN of first user terminal attaching between the first up GTP tunnel of setting up, receive the first up GTP tunnel message that this SGSN sends;
Described acquiring unit, concrete the first up GTP tunnel sign that is used for obtaining from the described first up GTP tunnel message described the first up GTP tunnel;
Described query unit, the concrete corresponding relation that is used for inquiring about up GTP tunnel sign and descending GTP tunnel sign is determined the second descending GTP tunnel sign corresponding with the described first up GTP tunnel sign of obtaining;
Described encapsulation unit specifically is used for using the described second descending GTP tunnel sign, and the described message that encapsulates in the described first up GTP tunnel message is carried out encapsulation process, obtains the second descending GTP tunnel message;
Described the first transmitting element, concrete be used for by and the SGSN of described the second user terminal ownership between the second descending GTP tunnel of setting up, the described second descending GTP tunnel message is sent to the SGSN of described the second user terminal ownership.
13. the user terminal based on the described method of claim 4 is characterized in that, comprising:
The 3rd receiving element, be used for receiving the second user terminal by the SGSN of described the second user terminal ownership, GGSN, and the SGSN of this user terminal ownership, the the first limited broadcast message that sends, the IP address of distributing when the source address of described the first limited broadcast message is described the second user terminal PDP context activation, destination address are the wired broadcasting address;
The first message construction unit, the IP address of distributing when being used for using described the second user terminal PDP context activation that described the first limited broadcast message carries as destination address, makes up data message;
The second transmitting element, for the described data message that will make up, by the SGSN of this user terminal ownership, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
14. user terminal as claimed in claim 13 is characterized in that, also comprises:
The second message construction unit, the IP address of distributing when being used for using this user terminal PDP context activation use the limited broadcast address as destination address as source address, make up the second limited broadcast message;
Described the second transmitting element also is used for described the second limited broadcast message, and by the SGSN of this user terminal ownership, described GGSN, and the SGSN of described the second user terminal ownership send to described the second user terminal.
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