CN103327481A

CN103327481A - Method, device and system for establishing data connection

Info

Publication number: CN103327481A
Application number: CN2012100763507A
Authority: CN
Inventors: 梁爽; 陈淑; 朱春晖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2013-09-25
Anticipated expiration: 2032-03-21
Also published as: CN103327481B

Abstract

The invention discloses a method, device and system for establishing data connection. The method comprises the steps that an iAGW receives an address request message sent by a terminal; the iAGW obtains an address which the network side distributes to the terminal; after the iAGW establishes data connection between the terminal and the network side, the iAGW sends the address to the terminal, wherein the data connection established between the terminal and the network side is the data connection established between the iAGW and the network side. The method, device and system for establishing data connection solves the technical problem that network resources of a wireless access network are wasted due to the fact that in the prior art, the types of terminals which can be accessed to the same wireless access network are few, realizes the technical effect that different types of terminals are accessed to the same wireless network through the iAGW, and improves the resource use ratio of the wireless access network.

Description

Set up method, device and system that data connect

Technical field

The present invention relates to the communications field, in particular to a kind of method, device and system that sets up the data connection.

Background technology

In order to keep the competitiveness of 3-G (Generation Three mobile communication system) in the communications field, providing for the user that speed is faster, time delay is lower and more in the Extraordinary Mobile Communication Service, also needing to reduce the operation cost of operator.Third generation partner program (3rd Generation Partnership Project is referred to as 3GPP) standard operation group just is being devoted to the research of evolved packet system (Evolved Packet System is referred to as EPS).

Whole EPS system as shown in Figure 1, universal terrestrial access network (the Evolved Universal Terrestrial Radio Access Network that mainly comprises evolution, referred to as E-UTRAN) and packet-based core networks (Evolved Packet Core is referred to as EPC) two parts of evolution.The EPC of this system can support the user from GSM EDGE wireless access network (GSM EDGE radio access network, referred to as GERAN) and the access of universal land radio access web (Universal Terrestrial Radio Access Network is referred to as UTRAN).

In the EPC packet-based core networks, comprised home subscriber data server (Home Subscriber Server, referred to as HSS), mobility management unit (Mobility Management Entity, referred to as MME), gateway (Serving Gateway, referred to as S-GW), grouped data network gateway (PDN Gateway, referred to as P-GW), Serving GPRS Support Node (Serving GPRS SupportNode, referred to as SGSN) and strategy and charging regulation function entity (Policy and Charging Enforcement Function, referred to as PCRF), wherein:

HSS (Home Subscriber Server): the home subscriber data server is the permanent storage place of user contracting data, is positioned at the home network that the user contracts;

MME (Mobility Management Entity): Mobility Management Entity, that user contracting data is at the storage place of current network, be responsible for Non-Access Stratum (Non-Access Stratum is referred to as the NAS layer) signaling management of terminal to network, tracking and paging management function and the bearer management under user's idle pulley;

S-GW (Serving Gateway): gateway, be the gateway that core net arrives wireless system, mainly be responsible for terminal to the user plane bearer of core net, the data buffer storage under the terminal idle pulley, the function of network side initiating business request, legal eavesdropping, packet routing and forwarding capability;

P-GW (PDN Gateway): grouped data network gateway is the grouping domain system (EPS) of evolution and the gateway of this system's external network, is responsible for the functions such as IP address assignment, billing function, grouping packet filtering and application of policies of terminal.

SGSN (Serving GPRS SupportNode): Serving GPRS Support Node, be the business support point that GERAN and UTRAN user access the EPC network, similar with MME on the function, be responsible for user's the functions such as position renewal, paging management and bearer management.

PCRF (Policy and Charging Enforcement Function): strategy and charging regulation function entity, be responsible for providing policy control and charging regulation to PCEF.

In above-mentioned framework, although EUTRAN can provide access bandwidth at a high speed, because EUTRAN belongs to emerging access technology, support in the market that the terminal quantity of EUTRAN is considerably less.Professional when the mass data that a large amount of intelligent terminals bring, also can't obtain to satisfy from supporting the UTRAN/GERAN access, thereby cause a large amount of LTE networks of disposing of operator to bring very large income for it.

Yet the most intelligent terminals in the existing market are all supported the WLAN access, and the free WLAN technology of frequency range also can provide the very high transmission rate of eating dishes without rice or wine.If can be by the WLAN terminal by access in the LTE EUTRAN system, operator just can attract a large amount of WLAN terminals to add the LTE network so, thereby accelerates the capital input repayment.

For above-mentioned problem, effective solution is proposed not yet at present.

Summary of the invention

The invention provides a kind of method, device and system that data connect that set up, with the technical problem of the waste of the Internet resources that solved at least the less wireless access network that causes of terminal type that can access same wireless access network in the prior art.

According to an aspect of the present invention, provide a kind of method that data connect of setting up, the address request that the iAGW receiving terminal sends; IAGW obtains the address that network side is terminal distribution; IAGW sets up data and is connected between terminal and network side after, the address is sent to terminal; Wherein, to be connected what use be that iAGW is connected with the data of network side foundation to the data set up of terminal and network side.

Preferably, network side is the converged CN that wireless access network and core net form.

Preferably, after the address request that the iAGW receiving terminal sends, also comprise: when iAGW determines that the service quality QoS requirements of terminal request is not satisfied in carrying that network side has been set up, iAGW initiates resource allocation request or resource modifying request according to the QoS of terminal request, wherein, resource allocation request or resource modifying request carry qos-related information.

Preferably, when address request is DHCP request or route requests, after the address request that the iAGW receiving terminal sends, the method also comprises: iAGW generates resource allocation request or resource modifying request according to DHCP request or route requests, wherein, resource allocation request or resource modifying request carry following one of at least: the QoS information of the sign of terminal, request type, grouped data network PDN type, terminal request, the APN of terminal and the access style of terminal; IAGW sends to network side with resource allocation request or resource modifying request; IAGW receives carrying foundation request or the bearing modification request that network side returns; IAGW sets up request or bearing modification request according to carrying, sets up data for terminal and connects.

Preferably, the carrying that iAGW reception network side returns is set up before request or the bearing modification request, also comprises: the packet data gateway P-GW of network side sends carrying foundation request or bearing modification request to the mobile management unit MME of network side; MME returns carrying by the base station to iAGW and sets up request or bearing modification request; IAGW sets up data for terminal and connects according to the carrying request of setting up or bearing modification request, comprising: P-GW, MME are connected terminal and are connected with the data that network side is set up with iAGW, the binding that is connected with the data of network side foundation with iAGW.

Preferably, iAGW obtains the address that network side is terminal distribution, comprise: iAGW sets up request or the bearing modification request from carrying and obtains the address allocation server address, and wherein, request is set up in carrying or the bearing modification request carries the address allocation server address that network side issues; IAGW is retrieved as the IP address of terminal distribution from address allocation server corresponding to address allocation server address.

Preferably, the carrying that iAGW reception network side returns is set up before request or the bearing modification request, and also comprise: MME receives resource allocation request or the resource modifying request that iAGW sends; MME sends the bearing resource order to the P-GW of network side; P-GW generating QoS policy and charging policy, and according to qos policy and charging policy generation bearing modification request or carrying foundation request.

Preferably, when network side had been disposed strategy and charging control PCC, P-GW is generating QoS policy and charging policy in such a way: P-GW is that terminal is selected a policy charging rule functional entity PCRF; P-GW sends the session request that creates to PCRF; It is qos policy and the charging policy that terminal generates that P-GW receives chosen PCRF.

Preferably, after P-GW generating QoS policy and the charging policy, also comprise: when network side determines that qos requirement in the qos policy that network side generates is not satisfied in carrying that iAGW has set up, network side is initiated carrying and is set up request or bearing modification request, wherein, carrying foundation request or bearing modification request carry the qos-related information of iAGW.

Preferably, P-GW generating QoS policy and charging policy comprise: P-GW is according to access style generating QoS policy and the charging policy of terminal; Wherein, P-GW obtains the access style of terminal in the following manner: resource allocation request or resource modifying request carry the access style of terminal; Perhaps MME obtains the terminal access style that iAGW supports when iAGW and network side are set up data and be connected, and in the bearing resource order the current access style of carried terminal.

Preferably, iAGW sets up between terminal and network side after data are connected, and also comprise: when stopping transfer of data between terminal and network side, iAGW discharges the resource of this terminal.

Preferably, iAGW discharges the resource of this terminal, comprise: iAGW receives the notification message of the coverage of terminal deviated from network side, when perhaps iAGW detects terminal deviated from network side coverage, iAGW sends resource release request to network side, and resource release request carries sign and/or the request type of terminal; Network side discharges the resource of terminal.

Preferably, iAGW discharges the resource of this terminal, also comprise: when the resource of determining to discharge this terminal when iAGW or network side had influence on iAGW and data that network side is set up are connected, iAGW or network side initiation were to the modification of the QoS of the carrying of setting up between iAGW and the network side.

Preferably, iAGW discharges the resource of this terminal, also comprises: iAGW receives the indication information that network side discharges the resource of terminal, and wherein, indication information carries sign and/or the request type of terminal; IAGW discharges the resource of this terminal according to indication information.

Preferably, iAGW sets up between terminal and network side after data are connected, and also comprises: when iAGW and terminal were consulted again to QoS, iAGW sent QoS to network side and revises request, and wherein, QoS revises sign and/or the request type that request carries terminal; The QoS that iAGW returns according to network side revises request response the QoS of iAGW and/or the QoS of terminal is made amendment.

Preferably, iAGW sets up between terminal and network side after data are connected, and also comprise: network side is that terminal generates new QoS information; IAGW receives network side and revises the indication information that terminal data connects, wherein, carry in the indication information following one of at least: the sign of terminal, request type and network side are that terminal generates new QoS information; IAGW revises the data of setting up between terminal and the network side according to indication information and is connected.

Preferably, iAGW revises the data of setting up between terminal and the network side according to indication information and is connected, also comprise: when the data of setting up between iAGW or network side determine to revise terminal and network side were connected the QoS that has influence on the carrying that iAGW and network side set up, iAGW or network side initiation were to the modification of the QoS of the carrying of iAGW and network side foundation.

Preferably, network side is that terminal generates new QoS information, and comprising: the P-GW of network side generates new QoS information; Perhaps when network side had been disposed PCC, PCRF generated new QoS information, and new QoS information is sent to P-GW.

According to another aspect of the present invention, provide a kind of device that data connect of setting up, this device is arranged in iAGW, comprising: the first receiving element is used for the address request that receiving terminal sends; Acquiring unit is used for obtaining the address that network side is terminal distribution; The first transmitting element after being used for setting up data between terminal and network side and being connected, is sent to terminal with the address; Wherein, to be connected what use be that iAGW is connected with the data of network side foundation to the data set up of terminal and network side.

Preferably, the device of setting up the data connection also comprises: generation unit, be used for generating resource allocation request or resource modifying request according to DHCP request or route requests, wherein, resource allocation request or resource modifying request carry following one of at least: the QoS information of the sign of terminal, request type, grouped data network PDN type, terminal request, the APN of terminal and the access style of terminal; The second transmitting element is used for resource allocation request or resource modifying request are sent to network side; The second receiving element is used for receiving carrying foundation request or the bearing modification request that network side returns; First sets up the unit, is used for setting up request or bearing modification request according to carrying, sets up data for terminal and connects.

Preferably, the device of setting up the data connection also comprises: releasing unit when being used for stopping transfer of data between terminal and network side, discharges the resource of this terminal.

Preferably, set up the device that data connect and also comprise: the 3rd transmitting element, be used for when iAGW consults QoS again with terminal, sending QoS to network side and revising request, wherein, the QoS modification asks to carry sign and/or the request type of terminal; Revise the unit, the QoS that is used for returning according to network side revises request response the QoS of iAGW and/or the QoS of terminal is made amendment.

Preferably, the device of setting up the data connection also comprises: the 3rd receiving element, being used at network side is that terminal is when generating new QoS information, receive network side and revise the indication information that terminal data connects, wherein, carry in the indication information following one of at least: the sign of terminal, request type and network side are that terminal generates new QoS information; Second sets up the unit, is used for revising the data of setting up between terminal and the network side according to indication information and is connected.

According to a further aspect of the invention, provide a kind of system that data connect that sets up, comprised terminal, iAGW and network side, wherein, network side is used to the terminal distribution address; Terminal is used for sending address request; IAGW is used for the address request that receiving terminal sends; Obtain the address that network side is terminal distribution; After between terminal and network side, setting up data and being connected, the address is sent to terminal; Wherein, to be connected what use be that iAGW is connected with the data of network side foundation to the data set up of terminal and network side.

Preferably, iAGW also is used for generating resource allocation request or resource modifying request according to DHCP request or route requests, wherein, resource allocation request or resource modifying request carry following one of at least: the QoS information of the sign of terminal, request type, grouped data network PDN type, terminal request, the APN of terminal and the access style of terminal; Resource allocation request or resource modifying request are sent to network side; Receive carrying foundation request or bearing modification request that network side returns; Set up request or bearing modification request according to carrying, set up data for terminal and connect.

Preferably, network side comprises MME and P-GW, and wherein, P-GW is used for sending carrying to the mobile management unit MME of network side and sets up request or bearing modification request; MME is used for returning carrying by the base station to iAGW and sets up request or bearing modification request; P-GW, MME are connected with iAGW and are used for finishing terminal and are connected with the data that network side is set up, the binding that is connected with the data of network side foundation with iAGW.

Preferably, MME also is used for receiving resource allocation request or the resource modifying request that iAGW sends; MME also is used for sending the bearing resource order to P-GW; P-GW also is used for generating QoS policy and charging policy, and generates bearing modification request or carrying foundation request according to qos policy and charging policy.

Preferably, iAGW also is used for setting up between terminal and network side after data are connected, and between terminal and network side during the termination transfer of data, discharges the resource of this terminal.

Preferably, when iAGW also is used for terminal QoS being consulted again, sends QoS to network side and revise request, wherein, QoS revises sign and/or the request type that request carries terminal; According to the QoS modification request response that network side returns the QoS of iAGW and/or the QoS of terminal are made amendment.

Preferably, network side also is used for setting up between terminal and network side after data are connected at iAGW, is the new QoS information of terminal generation; IAGW also be used for to receive network side and revises the indication information that terminal data connects, wherein, carry in the indication information following one of at least: the sign of terminal, request type and network side are that terminal generates new QoS information; Revising the data of setting up between terminal and the network side according to indication information is connected.

In the present invention, iAGW is retrieved as the address information of terminal distribution from network side after receiving the Address requests of terminal, thereby realizes the data establishment of connection between terminal and the network side.In the process that connects, iAGW adopts iAGW to be connected with the data of network side foundation, thereby can reduce the change to original network system, has realized multiplexing to original carrying.By the way, solved the technical problem of waste of the Internet resources of the less wireless access network that causes of terminal type that can access same wireless access network in the prior art, realize by iAGW dissimilar terminal being accessed the technique effect of same wireless network, improved the resource utilization of Radio Access Network.

Description of drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:

Fig. 1 is the structural representation of evolution grouping domain system in the correlation technique.

Fig. 2 is a kind of preferred flow charts according to the method for setting up the data connection of the embodiment of the invention;

Fig. 3 is the another kind of preferred flow charts according to the method for setting up the data connection of the embodiment of the invention;

Fig. 4 returns a kind of preferred flow charts that request or bearing modification request are set up in carrying according to setting up in the method that data connect of the embodiment of the invention;

Fig. 5 sets up a kind of preferred flow charts of request or bearing modification request according to generation carrying in the method for setting up the data connection of the embodiment of the invention;

Fig. 6 is a kind of preferred schematic diagram according to the network architecture diagram of the embodiment of the invention;

Fig. 7 is the another kind of preferred schematic diagram according to the network architecture diagram of the embodiment of the invention;

Fig. 8 is a kind of preferred flow charts of setting up the method for data connection according to the terminal of the embodiment of the invention;

Fig. 9 is a kind of preferred flow charts according to the release terminal data connection of the embodiment of the invention;

Figure 10 is the another kind of preferred flow charts according to the release terminal data connection of the embodiment of the invention;

Figure 11 is a kind of preferred flow charts that network side discharges or Update Table connects according to the embodiment of the invention;

Figure 12 is a kind of preferred flow charts according to the terminal of the embodiment of the invention or the connection of iAGW Update Table;

Figure 13 is a kind of preferred structure block diagram according to the device of setting up the data connection of the embodiment of the invention;

Figure 14 is the another kind of preferred structure block diagram according to the device of setting up the data connection of the embodiment of the invention;

Figure 15 is another the preferred structure block diagram according to the device of setting up the data connection of the embodiment of the invention;

Figure 16 is another the preferred structure block diagram according to the device of setting up the data connection of the embodiment of the invention;

Figure 17 is a kind of preferred structure schematic diagram according to the system that sets up the data connection of the embodiment of the invention.

Embodiment

Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.

Although EUTRAN can provide access bandwidth at a high speed, because EUTRAN belongs to emerging access technology, support in the market that the terminal quantity of EUTRAN is considerably less.When a large amount of intelligent terminals brought mass data professional, the UTRAN/GERAN access can't provide satisfied system bandwidth, thereby caused a large amount of LTE networks of disposing of operator to bring very large income for it.The method that the embodiment of the invention provides the terminal of one kind of multiple types can access EUTRAN so that the terminal of the types such as WLAN can access EUTRAN, has increased the flexibility of network insertion, has improved the utilization rate of EUTRAN.

The present invention proposes a kind of core net framework of fusion, allow polytype terminal can access the EUTRAN network, the realization core net is carried out unified management to it.Carrier network finally can be identified separately these terminals, and it is carried out charging and QoS control.Wherein, the IAD of fusion (integrated Access Gateway is referred to as iAGW) is placed between terminal and the base station, and the interface between terminal and the iAGW is for eating dishes without rice or wine, and the interface between iAGW and the base station is for eating dishes without rice or wine.Terminal just is modeled into the packet-based core networks (Evolved Packet Core is referred to as EPC) that a 3GPP UE is linked into EUTRAN and evolution.

Embodiment 1

The present embodiment provides a kind of method that data connect of setting up, and as shown in Figure 2, comprising:

The address request that the S202:iAGW receiving terminal sends, wherein, address request is used for obtaining the address that network side is terminal distribution;

S204:iAGW obtains the address that network side is terminal distribution;

S206:iAGW sets up data and is connected between terminal and network side after, the address is sent to terminal; Wherein, to be connected what use be that iAGW is connected with the data of network side foundation to the data set up of terminal and network side.

In this preferred implementation, iAGW is retrieved as the address information of terminal distribution from network side after receiving the Address requests of terminal, thereby realizes the data establishment of connection between terminal and the network side.In the process that connects, iAGW adopts iAGW to be connected with the data of network side foundation, thereby can reduce the change to original network system, has realized multiplexing to original carrying.By the way, solved the technical problem of waste of the Internet resources of the less wireless access network that causes of terminal type that can access wireless access network in the prior art, realize by iAGW dissimilar terminal being accessed the technique effect of same wireless network, improved the resource utilization of Radio Access Network.

In each preferred implementation of the present embodiment, network side is the converged CN that wireless access network and core net form, thereby so that terminal can access in the converged CN network by iAGW, realizes effective utilization of converged CN bandwidth resources.

In a preferred implementation, after step S202, the method also comprises: when iAGW determines that carrying that network side has been set up is difficult to satisfy the qos requirement of terminal request, iAGW initiates resource allocation request or resource modifying request according to the QoS of terminal request, wherein, resource allocation request or resource modifying request carry qos-related information.

In a preferred implementation, the address request that terminal sends is according to the type of terminal and network and fixed, for example, when terminal is the WLAN terminal, address request is DHCP (Dynamic Host Configuration Protocol, referred to as DHCP) request or route requests, after step S202, the method also comprises flow process shown in Figure 3:

S302:iAGW generates resource allocation request or resource modifying request according to DHCP request or route requests;

Wherein, resource allocation request or resource modifying request carry but be not limited to following one of at least: the QoS information of the sign of terminal, request type, grouped data network PDN type, terminal request, the APN of terminal and the access style of terminal;

S304:iAGW sends to network side with resource allocation request or resource modifying request;

S306:iAGW receives carrying foundation request or the bearing modification request that network side returns;

S308:iAGW sets up request or bearing modification request according to carrying, sets up data for terminal and connects.

In a preferred implementation, above-mentioned network side can return in the following way carrying and set up request or bearing modification request, and concrete steps comprise as shown in Figure 4:

S402: the P-GW of network side sends carrying foundation request or bearing modification request to the MME of network side;

S404:MME returns carrying by the base station to iAGW and sets up request or bearing modification request.

In above-mentioned each preferred implementation, P-GW, MME are connected with iAGW and are finished the data that terminal and network side set up and is connected, the binding that is connected with the data of network side foundation with iAGW.

Binding above refers to, the record terminal is connected with the data of network side foundation in P-GW, MME and iAGW, and the mapping relations of the data set up of iAGW and network side between being connected, so that follow-up data terminal and network side are set up is connected discharge or the operation such as modification in, can find the data of corresponding iAGW and network side foundation to be connected and operate.

In the carrying request of setting up or bearing modification request, may only carry the address allocation server address and directly not carry address into terminal distribution, in these cases, iAGW can obtain in the following manner the address that network side is terminal distribution: iAGW and obtain the address allocation server address from carrying foundation request or bearing modification request, wherein, carrying foundation request or bearing modification request carry the address allocation server address that network side issues; IAGW is retrieved as the IP address of terminal distribution from address allocation server corresponding to address allocation server address.

In a preferred implementation, network side can generate in the following manner the bearing modification request or request is set up in carrying, and concrete steps comprise as shown in Figure 5:

S502:MME receives resource allocation request or the resource modifying request that iAGW sends;

S504:MME sends the bearing resource order to the P-GW of network side;

S506:P-GW generating QoS policy and charging policy, and according to qos policy and charging policy generation bearing modification request or carrying foundation request.

In above-mentioned steps S506, when network side had been disposed strategy and charging control PCC, P-GW is generating QoS policy and charging policy in such a way: P-GW is that terminal is selected a policy charging rule functional entity PCRF; P-GW sends the session request that creates to PCRF; It is qos policy and the charging policy that terminal generates that P-GW receives chosen PCRF.

After step S506P-GW generating QoS policy and charging policy, network side judges whether carrying that iAGW set up satisfies the qos requirement in the qos policy not, if do not satisfy, network side is initiated carrying and is set up request or bearing modification request, wherein, carrying foundation request or bearing modification request carry the qos-related information of iAGW.

P-GW also needs to obtain the access style of terminal when generating QoS policy and charging policy, particularly, P-GW can obtain according to following dual mode the access style of terminal: 1) resource allocation request or resource modifying request carry the access style of terminal; 2) MME obtains the terminal access style that iAGW supports when iAGW and network side are set up data and be connected, and in the bearing resource order the current access style of carried terminal.

Setting up between terminal and network side after data are connected at iAGW, the situation of transfer of data may occur stopping between terminal and network side, at this moment, iAGW discharges the resource of this terminal.IAGW can adopt and stop transfer of data between following several mode perception terminal and network side:

1) iAGW receives the notification message of the coverage of terminal deviated from network side;

2) iAGW detects terminal deviated from network side coverage;

3) iAGW receives the indication information that network side discharges the resource of terminal.

For mode 1) and 2) iAGW sends resource release request to network side, this resource release request carries sign and/or the request type of terminal; Network side discharges the resource of terminal.When the resource of determining to discharge this terminal when iAGW or network side had influence on iAGW and data that network side is set up are connected, iAGW or network side initiation were to the modification of the QoS of the carrying of setting up between iAGW and the network side.

For mode 3) carry sign and/or the request type of terminal in this indication information; IAGW discharges the resource of this terminal according to indication information.

In actual applications, iAGW sets up between terminal and network side after data are connected, iAGW and terminal can also be consulted again to QoS, when iAGW and terminal are consulted again to QoS, iAGW sends QoS to network side and revises request, wherein, QoS revises sign and/or the request type that request carries terminal; The QoS that iAGW returns according to network side revises request response the QoS of iAGW and/or the QoS of terminal is made amendment.In above-mentioned preferred implementation, iAGW and terminal can be according to demand carried out again negotiation to QoS, and then the trigger network side is made amendment to its QoS, better utilizes Internet resources in order to satisfy, and further improves the quality that terminal is carried out transfer of data.

IAGW sets up between terminal and network side after data are connected, also may have network side is the situation that terminal generates new QoS information, at this moment, iAGW receives network side and revises the indication information that terminal data connects, wherein, carry in the indication information following one of at least: the sign of terminal, request type and network side are that terminal generates new QoS information; IAGW revises the data of setting up between terminal and the network side according to indication information and is connected.In a preferred implementation, it is that terminal generates new QoS information that network side can adopt following dual mode: 1) P-GW of network side generates new QoS information; 2) when network side has been disposed PCC, PCRF generates new QoS information, and new QoS information is sent to P-GW.

No matter be that data connect, discharge the data connection or Update Table connects in above-mentioned setting up, all may have influence on the QoS of the carrying of iAGW and network side foundation, when having influence on the QoS of the carrying that iAGW and network side set up, iAGW or network side can be initiated the modification with the QoS of the carrying of network side foundation to iAGW.

Embodiment 2

The invention provides a kind of preferred embodiment and come further the present invention to be made an explanation, but it should be noted that the preferred embodiment just limits the present invention improperly in order better to describe the present invention, not consist of.

Fig. 6 is that the present embodiment provides a kind of network architecture diagram.As shown in Figure 6, in this framework, mainly comprise following network element: HSS, mobile management unit, SGW, P-GW, the base station, iAGW and terminal, wherein, these network elements have also increased following function on the basis of existing technology:

HSS is used for contracting and security information of storage iAGW and terminal.

P-GW can be iAGW and UE service simultaneously, and finishes the bearer context mapping relations of iAGW and UE.

Mobile management unit can be SGSN or MME, and the type of mobile management unit mainly is to determine by the type of iAGW and base station.If iAGW and base station are the EUTRAN accesses, then mobile management unit is MME; If iAGW and base station are the UTRAN accesses, then mobile management unit is SGSN.The similar functions of this network element in having existing framework, can also finish the mapping between iAGW and the UE bearer context.

IAGW provides access for dissimilar terminal, on the one hand on the other hand as the UE access network.Finish the contextual mapping of own context and UE, and the contextual maintenance of UE.

Fig. 7 is the alternative network architecture diagram that the present embodiment provides, this framework is that difference is that access technology is different from Fig. 6, because of as 7 in iAGW and the base station supported all be the UTRAN access, so the mobile management unit in the framework is SGSN, uses the GTPv1 agreement between SGSN and the GGSN.Other and Fig. 6 are similar, do not repeat them here.

It should be noted that the base station in Fig. 6 and Fig. 7 can be base station from home also for ordinary base station, the function that provides all is similarly, therefore describes all to be example take the base station.IAGW also can support polytype RAT simultaneously in addition.

Based on Fig. 6 and the network architecture shown in Figure 7, the present embodiment also provides a kind of preferred terminal to set up the method that data connect, and as shown in Figure 8, concrete steps comprise:

Step S800:iAGW access network, wherein the process of the flow process of AGW access network and ordinary terminal access network is similar, does not repeat them here.IAGW finishes the relevant configuration as the base station in this course simultaneously.After this process, iAGW can provide for the terminal of rear end the service of access network.

Preferably, when iAGW only supports a RAT (RadioAccess Type, wireless access type), when being linked in the network, iAGW the RAT type of oneself can be reported mobile management unit.Mobile management unit can report the SGW/P-GW of iAGW after connecting for iAGW.

Step S802: terminal is set up with iAGW and is eated dishes without rice or wine to be connected.

Step S804: terminal is carried out the authentication flow process by the iAGW access network.

Step S806: terminal is sent out DHCP request message or route request information to iAGW, is used for trigger network and sets up the data connection for this terminal.

In the foregoing description take the WLAN terminal as example, but the invention is not restricted to this, when iAGW supported the terminal of other access styles, the message that terminal is initiated the data connection can not be DHCP or route request information, but the message that connects in other access styles.For example, when iAGW supported the 3G access, this message can be the PDP context activation request.For fear of the change to terminal, these message can adopt related news of the prior art, do not repeat them here.

Step S808, if carried the QoS information of terminal in the above-mentioned request, perhaps the current own carrying of setting up of iAGW judgement can't be satisfied the QoS message of UE, then iAGW can initiate independent resource modifying flow process, the resource modifying flow process that terminal is initiated in this process and the prior art is similar, does not do here and gives unnecessary details.

IAGW sends resource by the base station to mobile management unit and distributes or the resource modifying request, carry the sign (for example IMSI or NAI) of UE in this request, request type (being designated as UE connects), preferably, also be included as the QoS information of UE request in this request, be the QoS information that iAGW upgrades, PDN type.Optionally, can also carry the RAT information of the current access of UE in this message.

Step S810, mobile management unit is judged as terminal according to request type and connects.

Step S812, mobile management unit sends the bearing resource order by SGW to P-GW, (for example wherein carries the sign of UE, IMSI or NAI), request type (being designated as UE connects) optionally also is included as the QoS information that UE asks, and is the QoS information that iAGW upgrades.Optionally, can also carry the RAT information of the current access of UE in this message.

Step S814, P-GW judges that according to request type needs are that terminal connects.

Step S816, if disposed PCC, then P-GW is that terminal is selected a policy charging rule function (Policy andCharging Rule Function is referred to as PCRF), and initiates the IPCAN session establishment to PCRF.

Optionally, can also carry the RAT information of the current access of UE in the IPCAN session establishment.This information can be carried in the above-mentioned flow process, also can be that P-GW obtains the RAT information that iAGW supports from the iAGW connection building process, and according to the local access style of judging UE of request type.

PCRF is terminal generating QoS policy and charging policy, and returns to P-GW.If do not dispose PCC, then P-GW this locality generates above-mentioned information.

In addition, if this process has been revised the QoS of iAGW, then P-GW also can initiate iAGW to the IPCAN session modification process of PCRF.

Step S818, if support to switch to the access way of 3GPP definition, then P-GW also initiates registration process to HSS or AAA Server, HSS/AAA server is the corresponding relation that UE preserves P-GW and APN.

Step S820, P-GW are that UE sets up context, and preserve the mapping relations of iAGW and UE bearer context.

P-GW sends bearing modification request or carrying foundation request by SGW to mobile management unit, wherein, carry IP address that promising UE distributes in this bearing modification request or the carrying request of setting up, be TFT, the QoS of UE distribution, and may upgrade the QoS of iAGW.

When supporting the scene of PMIP between P-GW and the SGW, SGW also can preserve above-mentioned information, and preserves the context mapping relation between iAGW and the UE.

Step S822, mobile management unit is preserved address, the QoS information of UE, and TFT information.Optionally, mobile management unit is also preserved the contextual mapping relations of iAGW and UE, and is UE distribution bearing identification.

Step S824, what send as P-GW is carrying when setting up request, and mobile management unit need to be initiated carrying and be set up request to base station and iAGW, and this request requires the base station also to set up corresponding radio bearer.

When P-GW send be the bearing modification request time, whether mobile management unit changes to judge whether that according to the QoS of iAGW the needs informing base station revises radio bearer.If unchanged, then mobile management unit is issued iAGW by direct-sending message with the bearing modification request, otherwise mobile management unit is initiated the bearing modification request to base station and iAGW, and this request requires the base station also to revise corresponding radio bearer.

Step S826, iAGW returns bearing modification response or carrying foundation response by the base station to mobile management unit.

Step S828, mobile management unit returns bearing modification response or carrying foundation response by SGW to P-GW, wherein, carries the bearing identification information of UE in above-mentioned response.

Be that the different modes of terminal distribution address is determined follow-up execution in step according to P-GW, if P-GW has been terminal distribution in said process IP address, then execution in step S516; If P-GW is terminal distribution IP address, then execution in step S515 by DHCP or RS/RA mode.

Step S830, the DHCP server address that iAGW issues according to P-GW sends the DHCP request, and iAGW is retrieved as the IP address that UE distributes from the corresponding DHCP server in DHCP server address.

Step S832, iAGW returns dhcp response or routing broadcast to terminal, is that the IP address notification that distributes of UE is to UE by dhcp response or routing broadcast with P-GW.

Based on Fig. 6 and the network architecture shown in Figure 7, the present embodiment also provides a kind of method that terminal data connects that discharges, and as shown in Figure 9, concrete steps comprise:

Step S902, terminal has been set up the data connection.

Step S904, iAGW receive the notice that terminal is left, and perhaps iAGW detects the overlay area of terminal deviated from network.

Step S906, iAGW sends the resource modifying request by the base station to mobile management unit, wherein, the sign of carrying request type and/or UE in this resource modifying request.Wherein, request type is used to indicate and is UE attachment removal or UE Connection Release, and the sign of UE is used to indicate the operation which terminal is carried out, and also can indicate above-mentioned two kinds of information with the sign of UE.The optional QoS that also comprises the iAGW of renewal.IAGW can finish the process into terminal release connection and resource modifying.

If above-mentioned resource modifying request has affected the QoS of iAGW carrying, then iAGW initiates independent resource modifying flow process, and the resource modifying flow process that terminal is initiated in this process and the prior art is similar, repeats no more here.

Step S908, mobile management unit is judged as the terminal release connection according to request type.

Step S910, mobile management unit sends the bearing resource order by SGW to P-GW, wherein, comprises the sign of request type and/or UE in this bearing resource order.Wherein, request type is used to indicate and is UE attachment removal or UE Connection Release, and the sign of UE is used to indicate the operation which terminal is carried out, and also can indicate above-mentioned two kinds of information with the sign of UE.The optional QoS that also comprises the iAGW of renewal.

Step S912, P-GW judges that according to request type needs are the terminal release connection.

Step S914, if network side has been disposed PCC, then P-GW initiates the IPCAN session termination to PCRF.If this process has been revised the QoS of iAGW, then P-GW also can be initiated to the IPCAN session modification process of the PCRF of iAGW.

Step S916, P-GW discharges the context of UE, and the mapping relations between iAGW and the UE context.

P-GW returns bearing modification or carrying deactivation request by SGW to mobile management unit, wherein carries the bearing identification of the carrying relevant with UE, request type, the sign of UE, and the QoS of the iAGW that may upgrade.Wherein, request type is used to indicate and is UE attachment removal or UE Connection Release, and it is the operation which terminal is carried out that the sign of UE is used to indicate, and also can indicate above-mentioned two kinds of information with the sign of UE.

Step S918, mobile management unit discharges the context of UE, and the mapping relations between iAGW and the UE context.

Step S920, if the QoS of iAGW does not upgrade, then mobile management unit sends bearing modification request or carrying deactivation request by direct-sending message to iAGW, wherein, carry the bearing identification of the carrying relevant with UE in bearing modification request or the carrying deactivation request, request type, the sign of UE, and the QoS of the iAGW that may upgrade.Wherein, request type is used to indicate as the UE resource discharges or modification, and it is the operation which terminal is carried out that the sign of UE is used to indicate, and also can indicate above-mentioned two kinds of information with the sign of UE.Otherwise mobile management unit is initiated the bearing modification request to base station and iAGW, and this request requires the base station also to revise corresponding radio bearer.

Step S922 if iAGW this moment also exists with terminal is connected, and then discharges this connection.

Step S924, iAGW returns bearing modification or carrying deactivation response by the base station to mobile management unit.

Step S926, mobile management unit returns bearing modification or carrying deactivation response by SGW to P-GW.

The present embodiment also provides another kind of network to discharge the mode that terminal data connects, as shown in figure 10, this flow process and Fig. 9 are similar, the difference with step S1004～S1008, the step of S910～S926 among step S1010～1026 and Fig. 9 is similar, does not repeat them here.

Step S1004～S1006, HSS launch position cancellation process or subscription data modification process.

Step S1008, by step 1004～1006 so that mobile management unit thinks that the connection of UE is invalid, thereby trigger to discharge the connection of UE, can also be MME because management or configuration reason discharge UE connects.

The present embodiment also provides a kind of network side to discharge or the Update Table connected mode, and as shown in figure 11, concrete steps comprise:

Step S1102, terminal has been set up the data connection.

Step S1104, if disposed PCC, then PCRF initiates IPCAN session modification or IPCAN session release, triggers the QoS modification of UE or the Connection Release of UE.

Step S1106, P-GW judge that this process revised the QoS of iAGW.If above-mentioned request has affected the QoS of iAGW carrying, then P-GW can initiate independent resource modifying flow process, and the resource modifying flow process that terminal is initiated in this process and the prior art is similar, does not repeat them here.And after this process, carry out again the subsequent step of this flow process.P-GW also can finish simultaneously to the bearing modification of iAGW with to the modification process of the carrying of terminal.In addition, P-GW can also be initiated to the IPCAN session modification process of the PCRF of iAGW, is used for request to the mandate of the QoS modification of iAGW.

Step S1108, P-GW returns bearing modification or carrying deactivation request by SGW to mobile management unit, wherein carries the bearing identification of the carrying relevant with UE, request type, the sign of UE, the QoS of the iAGW that may upgrade.Wherein, request type is used to indicate as the UE resource discharges or modification, and it is the operation which terminal is carried out that the sign of UE is used to indicate, and also can indicate above-mentioned two kinds of information with the sign of UE.

Step S1110, if the QoS of iAGW does not upgrade, then mobile management unit sends to carry to iAGW by direct-sending message and revises or carrying deactivation request.Otherwise mobile management unit need to be initiated the bearing modification request to base station and iAGW, and this request requires the base station also to revise corresponding radio bearer simultaneously.

Step S1112, iAGW initiate the QoS modification of terminal or the release that terminal is connected.

Step S1114, iAGW thinks that by the base station mobile management unit returns bearing modification or carrying deactivation response.

The method that the present embodiment also provides a kind of terminal or iAGW Update Table to connect, as shown in figure 12, concrete steps comprise:

Step S1202, terminal has been set up the data connection.

Step S1204, iAGW and UE consult again to QoS on eating dishes without rice or wine, and perhaps iAGW initiates the QoS modification process to UE.

Step S1206, if above-mentioned request has influence on the QoS of iAGW carrying, then iAGW initiates independent resource modifying flow process, the resource modifying flow process that terminal is initiated in this process and the prior art is similar, does not repeat them here.And after this process, carry out again the subsequent step of this flow process.Perhaps, iAGW can finish the process into terminal and the resource modifying of oneself.

IAGW sends resource allocation request or revises request to mobile management unit by the base station, carries request type in the request, the sign of UE.Wherein, this request type indicates this request for UE and/or iAGW modification/request resource, and it is that operation to which terminal also can be indicated above-mentioned two kinds of information with the sign of UE that the sign of UE is used to indicate.Preferably, can also comprise the QoS information of renewal and the information such as RAT of the current access of UE in the above-mentioned request.

Step S1208, mobile management unit sends the bearing resource order by SGW to P-GW, comprises request type in this bearing resource order, the sign of UE.Wherein, this request type is designated as UE and/or iAGW modification/request resource, and it is that operation to which terminal also can be indicated above-mentioned two kinds of information with the sign of UE that the sign of UE is used to indicate.The QoS information that preferably, can also comprise renewal in the bearing resource order.

Step S1210, P-GW judges that according to request type needs are that terminal and/or iAGW revise QoS.

Step S1212, if network side has been disposed PCC, then P-GW initiates the IPCAN session modification to PCRF.Preferably, P-GW can also be initiated to the IPCAN session modification process of the PCRF of iAGW, is used for request to the mandate of the QoS modification of iAGW.

Preferably, can also carry the RAT information of the current access of UE in the IPCAN session modification, RAT information can be carried up in this flow process, also can be that P-GW obtains the RAT information that iAGW supports from the iAGW connection building process, and according to the local access style of judging UE of request type.

Step S1214 carries out the correlation step after the S1104 among embodiment Figure 11.

Embodiment 3

The embodiment of the invention also provides a kind of device that data connect of setting up, and this device is arranged in iAGW, as shown in figure 13, comprise: the first receiving element 1302, be used for the address request that receiving terminal sends, wherein, address request is used for obtaining the address that network side is terminal distribution; Acquiring unit 1304 is used for obtaining the address that network side is terminal distribution; The first transmitting element 1306 after being used for setting up data between terminal and network side and being connected, is sent to terminal with the address; Wherein, to be connected what use be that iAGW is connected with the data of network side foundation to the data set up of terminal and network side.

In a preferred implementation, as shown in figure 14, the device of setting up the data connection also comprises: generation unit 1402, be used for generating resource allocation request or resource modifying request according to DHCP request or route requests, wherein, resource allocation request or resource modifying request carry following one of at least: the QoS information of the sign of terminal, request type, grouped data network PDN type, terminal request, the APN of terminal and the access style of terminal; The second transmitting element 1404 is used for resource allocation request or resource modifying request are sent to network side; The second receiving element 1406 is used for receiving carrying foundation request or the bearing modification request that network side returns; First sets up unit 1408, is used for setting up request or bearing modification request according to carrying, sets up data for terminal and connects.

In a preferred implementation, the device of setting up the data connection also comprises: releasing unit when being used for stopping transfer of data between terminal and network side, discharges the resource of this terminal.

In a preferred implementation, as shown in figure 15, the device of setting up the data connection also comprises: the 3rd transmitting element 1502, be used for when iAGW and terminal are consulted again to QoS, send QoS to network side and revise request, wherein, QoS revises sign and/or the request type that request carries terminal; Revise unit 1504, the QoS that is used for returning according to network side revises request response the QoS of iAGW and/or the QoS of terminal is made amendment.

In a preferred implementation, as shown in figure 16, the device of setting up the data connection also comprises: the 3rd receiving element 1602, being used at network side is that terminal is when generating new QoS information, receive network side and revise the indication information that terminal data connects, wherein, carry in the indication information following one of at least: the sign of terminal, request type and network side are that terminal generates new QoS information; Second sets up unit 1604, is used for revising the data of setting up between terminal and the network side according to indication information and is connected.

In the present embodiment set up the concrete execution in step that device that data connect carries out the data establishment of connection of terminal can be described such as above-mentioned each embodiment, do not repeat them here.

The embodiment of the invention also provides a kind of system that data connect that sets up, and as shown in figure 17, comprises terminal, iAGW and network side, and wherein, network side is used to the terminal distribution address; Terminal is used for sending address request, and wherein, address request is used for obtaining the address that network side is terminal distribution; IAGW is used for the address request that receiving terminal sends; Obtain the address that network side is terminal distribution; After between terminal and network side, setting up data and being connected, the address is sent to terminal; Wherein, to be connected what use be that iAGW is connected with the data of network side foundation to the data set up of terminal and network side.

In a preferred implementation, iAGW also is used for generating resource allocation request or resource modifying request according to DHCP request or route requests, wherein, resource allocation request or resource modifying request carry following one of at least: the QoS information of the sign of terminal, request type, grouped data network PDN type, terminal request, the APN of terminal and the access style of terminal; Resource allocation request or resource modifying request are sent to network side; Receive carrying foundation request or bearing modification request that network side returns; Set up request or bearing modification request according to carrying, set up data for terminal and connect.

In a preferred implementation, network side comprises MME and P-GW, and wherein, P-GW is used for sending carrying to the mobile management unit MME of network side and sets up request or bearing modification request; MME is used for returning carrying by the base station to iAGW and sets up request or bearing modification request; P-GW, MME are connected with iAGW and are used for finishing terminal and are connected with the data that network side is set up, the binding that is connected with the data of network side foundation with iAGW.

In a preferred implementation, MME also is used for receiving resource allocation request or the resource modifying request that iAGW sends; MME also is used for sending the bearing resource order to P-GW; P-GW also is used for generating QoS policy and charging policy, and generates bearing modification request or carrying foundation request according to qos policy and charging policy.

In a preferred implementation, iAGW also is used for setting up between terminal and network side after data are connected, and between terminal and network side during the termination transfer of data, discharges the resource of this terminal.

In a preferred implementation, when iAGW also is used for terminal QoS being consulted again, sends QoS to network side and revise request, wherein, QoS revises sign and/or the request type that request carries terminal; According to the QoS modification request response that network side returns the QoS of iAGW and/or the QoS of terminal are made amendment.

In a preferred implementation, network side also is used for setting up between terminal and network side after data are connected at iAGW, is the new QoS information of terminal generation; IAGW also be used for to receive network side and revises the indication information that terminal data connects, wherein, carry in the indication information following one of at least: the sign of terminal, request type and network side are that terminal generates new QoS information; Revising the data of setting up between terminal and the network side according to indication information is connected.

In the present embodiment set up the concrete execution in step that system that data connect carries out the data establishment of connection of terminal can be described such as above-mentioned each embodiment, do not repeat them here.

It should be noted that: the base station in above-described embodiment can be ordinary base station, perhaps base station from home.It is the access of EUTRAN or UTRAN that the method that above-described embodiment provides is applicable between iAGW and base station, and when mobile management unit was SGSN, GW can be that SGW/P-GW also can be GGSN.When GW was SGW/P-GW, the message between MME and SGSN and the SGW all was GTPv2 message, and the message between SGW and the P-GW can be GTPv2 message, also can be PMIP message.When mobile management unit was GGSN, mobile management unit only may be SGSN, and the message of using between them does not repeat them here as GTPv1 message.In above-described embodiment all various message done corresponding expansion or newly-increased message is finished above-mentioned expanded function.

Above-described embodiment only describes as an example of the access of support WLAN terminal example, the invention is not restricted to this, iAGW is not limited to and supports WLAN, can also support the terminal of other types, iAGW can also support eating dishes without rice or wine of UTRAN/GERAN, what perhaps other non-3GPP defined eats dishes without rice or wine, for example: CDMA, WiMAX etc.Eating dishes without rice or wine of using between terminal and the iAGW all is defined message and mechanism in the prior art, and the present invention only pays close attention to these terminals and how to be linked in the 3GPP network by iAGW.

As can be seen from the above description, the present invention has realized following technique effect:

IAGW is retrieved as the address information of terminal distribution from network side after receiving the Address requests of terminal, thereby realize the data establishment of connection between terminal and the network side.In the process that connects, iAGW adopts iAGW to be connected with the data of network side foundation, thereby can reduce the change to original network system, has realized multiplexing to original carrying.By the way, solved the technical problem of waste of the Internet resources of the less wireless access network that causes of terminal type that can access wireless access network in the prior art, realize by iAGW dissimilar terminal being accessed the technique effect of same wireless network, improved the resource utilization of Radio Access Network.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. set up the method that data connect for one kind, it is characterized in that, comprising:

The address request that the IAD iAGW receiving terminal that merges sends;

Described iAGW obtains the address that network side is described terminal distribution;

Described iAGW sets up data and is connected between described terminal and described network side after, described address is sent to described terminal;

Wherein, is connected what use with described data that described network side is set up be that described iAGW is connected with the data of described network side foundation to described terminal.

2. method according to claim 1 is characterized in that, described network side is the converged CN that wireless access network and core net form.

3. method according to claim 1 is characterized in that, after the address request that the iAGW receiving terminal sends, also comprises:

When described iAGW determines that the service quality QoS requirements of described terminal request is not satisfied in carrying that described network side has been set up, described iAGW initiates resource allocation request or resource modifying request according to the QoS of described terminal request, wherein, described resource allocation request or resource modifying request carry qos-related information.

4. method according to claim 1 is characterized in that, when described address request was dynamic host configuration protocol DHCP request or route requests, after the address request that described iAGW receiving terminal sends, described method also comprised:

Described iAGW generates resource allocation request or resource modifying request according to described DHCP request or route requests, wherein, described resource allocation request or resource modifying request carry following one of at least: the sign of terminal, request type, grouped data network PDN type, the QoS information of described terminal request, the APN of described terminal and the access style of described terminal;

Described iAGW sends to described network side with described resource allocation request or resource modifying request;

Described iAGW receives carrying foundation request or the bearing modification request that described network side returns;

Described iAGW sets up request or bearing modification request according to described carrying, sets up data for described terminal and connects.

5. method according to claim 4 is characterized in that,

Described iAGW receives the carrying that described network side returns and sets up before request or the bearing modification request, also comprises:

The packet data gateway P-GW of described network side sends described carrying foundation request or bearing modification request to the mobile management unit MME of described network side;

Described MME returns described carrying by the base station to described iAGW and sets up request or bearing modification request;

Described iAGW sets up request or bearing modification request according to described carrying, sets up data for described terminal and connects, and comprising:

Described P-GW, described MME be connected iAGW and finish described terminal and is connected with the described data that described network side is set up, the binding that is connected with the data of described network side foundation with described iAGW.

6. method according to claim 4 is characterized in that, described iAGW obtains the address that network side is described terminal distribution, comprising:

Described iAGW sets up request or the bearing modification request from described carrying and obtains the address allocation server address, and wherein, request is set up in described carrying or the bearing modification request carries the address allocation server address that described network side issues;

Described iAGW is retrieved as the IP address of described terminal distribution from address allocation server corresponding to described address allocation server address.

7. method according to claim 4 is characterized in that, described iAGW receives the carrying that described network side returns and sets up before request or the bearing modification request, also comprises:

Described MME receives described resource allocation request or the resource modifying request that described iAGW sends;

Described MME sends the bearing resource order to the P-GW of described network side;

Described P-GW generating QoS policy and charging policy, and according to described qos policy and charging policy generation bearing modification request or carrying foundation request.

8. method according to claim 7 is characterized in that, when described network side had been disposed strategy and charging control PCC, described P-GW generated described qos policy and charging policy in such a way:

Described P-GW is that described terminal is selected a policy charging rule functional entity PCRF;

Described P-GW sends the session request that creates to described PCRF;

It is qos policy and the charging policy that described terminal generates that described P-GW receives chosen PCRF.

9. method according to claim 7 is characterized in that, after described P-GW generating QoS policy and the charging policy, also comprises:

When described network side determines that qos requirement in the described qos policy that described network side generates is not satisfied in carrying that described iAGW has set up, described network side is initiated described carrying and is set up request or bearing modification request, wherein, described carrying foundation request or bearing modification request carry the qos-related information of iAGW.

10. according to claim 7 or 8 described methods, it is characterized in that, described P-GW generating QoS policy and charging policy comprise:

Described P-GW is according to access style generating QoS policy and the charging policy of described terminal;

Wherein, described P-GW obtains the access style of described terminal in the following manner:

Described resource allocation request or resource modifying request carry the access style of described terminal; Perhaps

Described MME obtains the terminal access style that iAGW supports, and carry the current access style of described terminal in described bearing resource order when described iAGW and described network side are set up data and be connected.

11. method according to claim 1 is characterized in that, described iAGW sets up between described terminal and described network side after data are connected, and also comprises:

When stopping transfer of data between described terminal and described network side, described iAGW discharges the resource of this terminal.

12. method according to claim 11 is characterized in that, described iAGW discharges the resource of this terminal, comprising:

Described iAGW receives that described terminal leaves the notification message of the coverage of described network side, when perhaps described iAGW detects described terminal and leaves described network side coverage, described iAGW sends resource release request to described network side, and described resource release request carries sign and/or the request type of terminal;

Described network side discharges the resource of described terminal.

13. method according to claim 11 is characterized in that, described iAGW discharges the resource of this terminal, also comprises:

When the resource of determining to discharge this terminal when described iAGW or described network side had influence on described iAGW and data that described network side is set up are connected, described iAGW or the initiation of described network side were to the modification of the QoS of the carrying of setting up between described iAGW and the described network side.

14. method according to claim 11 is characterized in that, described iAGW discharges the resource of this terminal, also comprises:

Described iAGW receives the indication information that network side discharges the resource of described terminal, and wherein, described indication information carries sign and/or the request type of terminal;

Described iAGW discharges the resource of this terminal according to described indication information.

15. method according to claim 1 is characterized in that, described iAGW sets up between described terminal and described network side after data are connected, and also comprises:

When described iAGW and described terminal were consulted again to QoS, described iAGW sent QoS to described network side and revises request, and wherein, described QoS revises sign and/or the request type that request carries terminal;

The QoS that described iAGW returns according to described network side revises request response the QoS of described iAGW and/or the QoS of described terminal is made amendment.

16. method according to claim 1 is characterized in that, described iAGW sets up between described terminal and described network side after data are connected, and also comprises:

Described network side is that terminal generates new QoS information;

Described iAGW receives described network side and revises the indication information that described terminal data connects, wherein, carry in the described indication information following one of at least: the sign of terminal, request type and described network side are that terminal generates new QoS information;

Described iAGW revises the data of setting up between described terminal and the described network side according to described indication information and is connected.

17. according to claim 15 or 16 described methods, it is characterized in that, described iAGW revises the data of setting up between described terminal and the described network side according to described indication information and is connected, and also comprises:

When the data of setting up between described iAGW or described network side are determined described modification terminal and network side were connected the QoS that has influence on the carrying that described iAGW and described network side set up, described iAGW or described network side were initiated the modification with the QoS of the carrying of described network side foundation to described iAGW.

18. method according to claim 16 is characterized in that, described network side is that terminal generates new QoS information, comprising:

The P-GW of described network side generates new QoS information; Perhaps

When described network side had been disposed PCC, described PCRF generated new QoS information, and described new QoS information is sent to described P-GW.

19. set up the device that data connect for one kind, it is characterized in that, be arranged in and merge IAD iAGW, comprising:

The first receiving element is used for the address request that receiving terminal sends;

Acquiring unit is used for obtaining the address that network side is described terminal distribution;

The first transmitting element after being used for setting up data between described terminal and described network side and being connected, is sent to described terminal with described address; Wherein, is connected what use with described data that described network side is set up be that iAGW is connected with the data of described network side foundation to described terminal.

20. device according to claim 19 is characterized in that, also comprises:

Generation unit, be used for generating resource allocation request or resource modifying request according to dynamic host configuration protocol DHCP request or route requests, wherein, described resource allocation request or resource modifying request carry following one of at least: the sign of terminal, request type, grouped data network PDN type, the service quality QoS information of described terminal request, the APN of described terminal and the access style of described terminal;

The second transmitting element is used for described resource allocation request or resource modifying request are sent to described network side;

The second receiving element is used for receiving carrying foundation request or the bearing modification request that described network side returns;

First sets up the unit, is used for setting up request or bearing modification request according to described carrying, sets up data for described terminal and connects.

21. device according to claim 19 is characterized in that, also comprises:

Releasing unit when being used for stopping transfer of data between described terminal and described network side, discharges the resource of this terminal.

22. device according to claim 19 is characterized in that, also comprises:

The 3rd transmitting element is used for sending QoS to described network side and revising request when described iAGW consults QoS again with described terminal, and wherein, described QoS modification asks to carry sign and/or the request type of terminal;

Revise the unit, the QoS that is used for returning according to described network side revises request response the QoS of described iAGW and/or the QoS of described terminal is made amendment.

23. device according to claim 19 is characterized in that, also comprises:

The 3rd receiving element, being used at described network side is that terminal is when generating new QoS information, receive described network side and revise the indication information that described terminal data connects, wherein, carry in the described indication information following one of at least: the sign of terminal, request type and described network side are that terminal generates new QoS information;

Second sets up the unit, is used for revising the data of setting up between described terminal and the described network side according to described indication information and is connected.

24. set up the system that data connect for one kind, it is characterized in that, comprise terminal, merge IAD iAGW and network side, wherein,

Described network side is used to described terminal distribution address;

Described terminal is used for sending address request;

Described iAGW is used for receiving the address request that described terminal sends; Obtain the address that described network side is described terminal distribution; After between described terminal and described network side, setting up data and being connected, described address is sent to described terminal; Wherein, is connected what use with described data that described network side is set up be that described iAGW is connected with the data of described network side foundation to described terminal.

25. system according to claim 24 is characterized in that,

Described iAGW also is used for generating resource allocation request or resource modifying request according to dynamic host configuration protocol DHCP request or route requests, wherein, described resource allocation request or resource modifying request carry following one of at least: the sign of terminal, request type, grouped data network PDN type, the service quality QoS information of described terminal request, the APN of described terminal and the access style of described terminal; Described resource allocation request or resource modifying request are sent to described network side; Receive carrying foundation request or bearing modification request that described network side returns; Set up request or bearing modification request according to described carrying, set up data for described terminal and connect.

26. system according to claim 25 is characterized in that, described network side comprises mobile management unit MME and packet data gateway P-GW, wherein,

Described P-GW is used for sending described carrying to the mobile management unit MME of described network side and sets up request or bearing modification request;

Described MME is used for returning described carrying by the base station to described iAGW and sets up request or bearing modification request;

Described P-GW, described MME be connected iAGW and also be used for finishing described terminal and be connected with the described data that described network side is set up, the binding that is connected with the data of described network side foundation with described iAGW.

27. method according to claim 25 is characterized in that,

Described MME also is used for receiving described resource allocation request or the resource modifying request that described iAGW sends;

Described MME also is used for sending the bearing resource order to described P-GW;

Described P-GW also is used for generating QoS policy and charging policy, and generates bearing modification request or carrying foundation request according to described qos policy and charging policy.

28. system according to claim 24 is characterized in that, described iAGW also is used for setting up between described terminal and described network side after data are connected, and between described terminal and described network side during the termination transfer of data, discharges the resource of this terminal.

29. system according to claim 24 is characterized in that,

When described iAGW also is used for described terminal QoS being consulted again, sends QoS to described network side and revise request, wherein, described QoS revises sign and/or the request type that request carries terminal; According to the QoS modification request response that described network side returns the QoS of described iAGW and/or the QoS of described terminal are made amendment.

30. system according to claim 24 is characterized in that,

Described network side also is used for setting up between described terminal and described network side after data are connected at described iAGW, is the new QoS information of terminal generation;

Described iAGW also is used for receiving described network side and revises the indication information that described terminal data connects, wherein, carry in the described indication information following one of at least: the sign of terminal, request type and described network side are that terminal generates new QoS information; Revising the data of setting up between described terminal and the described network side according to described indication information is connected.