CN103686846A

CN103686846A - Data message transmission method, and PDN (Public Data Network) connection identifier processing method and device

Info

Publication number: CN103686846A
Application number: CN201210330317.2A
Authority: CN
Inventors: 刘国燕; 朱春晖; 涂杨巍; 周星月
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-09-07
Filing date: 2012-09-07
Publication date: 2014-03-26
Anticipated expiration: 2032-09-07
Also published as: CN103686846B; WO2013166817A1

Abstract

The invention discloses a data message transmission method, and a PDN (Public Data Network) connection identifier processing method and device. The data message transmission method comprises the following steps: first IP (Internet Protocol) address request information is sent by UE (User Equipment) to a reliable non-3GPP (3rd Generation Partnership Project) access network, and the reliable non-3GPP access network is received as a first IP address distributed by the UE; second IP address request information is sent by the UE to the reliable non-3GPP access network, and a 3GPP core network is received as a second IP address distributed by the UE; the data message encapsulated by a tunnel is transmitted by the UE, wherein a source IP address or a target IP address of the data message is the second IP address, and the source IP address or the target IP address of the tunnel is the first IP address. According to the invention, the reliability of message transmission carried out through the non-3GPP access network by the UE is increased.

Description

Data message transmission method, PDN connection identifier processing method and device

Technical field

The present invention relates to the communications field, in particular to a kind of data message transmission method, packet data network (Packet Data Network, referred to as PDN) connection identifier processing method and device.

Background technology

Third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) grouping system (the Evolved Packet System of evolution, referred to as EPS) by Universal Terrestrial Radio Access Network (the Evolved Universal Terrestrial Radio Access Network of evolution, referred to as E-UTRAN), mobile management unit (Mobility Management Entity, referred to as MME), gateway (Serving Gateway, referred to as S-GW), grouped data network gateway (Packet Data Network Gateway, referred to as PDN GW or P-GW) and home subscriber server (Home Subscriber Server, referred to as HSS) form.

Fig. 1 is the 3GPP network of correlation technique and the network structure of non-3GPP network interworking, as shown in Figure 1, EPS supports the intercommunication with non-3 GPP system, wherein, by S2a/b/c Interface realization, PDN GW is as the anchor point between 3GPP and non-3 GPP system with the intercommunication of non-3 GPP system.In the system architecture diagram of EPS, non-3 GPP system access is divided into trustless non-3GPP access and the non-3GPP access of trusted.Wherein, trustless non-3GPP access needs to be connected with PDN GW through the packet data gateway (Evolved Packet Data Gateway, referred to as ePDG) of evolution, and the interface between ePDG and PDN GW is S2b; The non-3GPP access of trusted can directly be connected with PDN GW by S2a interface, and S2a interface adopts proxy mobile internet protocol (Proxy Mobile Internet Protocol, referred to as PMIP) agreement to carry out information interaction; In addition, S2c interface provides subscriber equipment (User Equipment, referred to as UE) control and the mobility support relevant to user's face between PDN GW, the mobility management protocol of its support is for supporting mobile IP v 6 (the Double Supported Moblie IPv6 Support for Dual Stack Hosts and Routers of two stacks, referred to as DSMIPv6), it can be for trustless non-3GPP and the non-3GPP access of trusted.

At present, many operators are thought, WLAN (Wireless Local Area Network, referred to as WLAN) can be used as non-3 GPP system trusty, therefore, UE is taken seriously gradually and is begun one's study by the problem that interconnects of WLAN access EPS trusty, and the existing relevant framework of prior art produces.Logical ne of WLAN and the P-GW of 3GPP are by the intercommunication of S2a interface, and S2a interface is supported general tunnel protocol (Generic Tunneling Protocol, referred to as GTP)/PMIP agreement.In order to avoid (the Access Control of the access controller in existing network as far as possible, referred to as AC)/wideband network gateway (Broadband network Gateway, referred to as BNG) equipment upgrades, (for example introduced WLAN IAD, WLAN IAD trusty (Trusted WLAN Access Gateway, referred to as TWAG '), thus the upgrading to existing network equipment reduced, and the schematic network structure after introducing TWAG ' is as shown in Figure 2.Realize like this, TWAG ' needs the S2a interface function between support and P-GW.

After stipulating in 3GPP agreement that UE accesses by WLAN, likely can access different mobile service packet networks simultaneously, now can set up a plurality of packet data network (Packet Data Network, referred to as PDN) and connect.In correlation technique, UE can distinguish different PDN by business five-tuple and connect, yet the PDN that identical UE is different connects may distribute identical IP address.Therefore,, for this scene, problem how to distinguish different PDN connections needs further to be solved.

For UE in correlation technique, by non-3 GPP access network trusty, carry out the poor problem of data-message transmission reliability, not yet propose at present effective solution.

Summary of the invention

For UE in correlation technique, by non-3 GPP access network trusty, carry out the poor problem of data-message transmission reliability, the invention provides data message transmission method, PDN connection identifier processing method and device, at least to address this problem.

According to an aspect of the present invention, a kind of data message transmission method is provided, comprise: UE sends an IP address request to non-third generation affiliate 3GPP Access Network trusty, receiving described non-3 GPP access network trusty is the IP address that described UE distributes; Described UE sends the 2nd IP address request to described non-3 GPP access network trusty, and receiving 3GPP core net is the 2nd IP address that described UE distributes; Described UE transmission is by the data message of tunnel encapsulation, and wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, and the source IP address in described tunnel or object IP address are IP addresses.

Preferably, UE sends an IP address request to non-3 GPP access network trusty, receiving described non-3 GPP access network trusty is that the IP address that described UE distributes comprises: described UE sends an IP address request to access controller/wideband network gateway AC/BNG, and obtaining described AC/BNG is the IP address that described UE distributes; Or described UE is to WLAN (wireless local area network) WLAN IAD TWAG ' transmission trusty the one IP address request, obtains the IP address that described TWAG ' distributes for described UE.

Preferably, before the data message of tunnel encapsulation is passed through in described UE transmission, also comprise: described UE receives the information that described non-3 GPP access network trusty is the described tunnel of described UE distribution, wherein, described tunnel information is that described non-3 GPP access network trusty receives after the described IP address request that described UE sends as this UE distribution.

Preferably, when described UE sends a described IP address request to AC/BNG, AC/BNG sends Radius request message to WLAN (wireless local area network) IAD TWAG ' trusty, receives the information in the described tunnel of described TWAG ' distribution.

Preferably, the information in described tunnel comprises: the local terminal IP address in the key in described tunnel and/or described tunnel.

Preferably, a described IP address request is all undertaken associated or is carried out association by the information in described tunnel by packet data network PDN connection identifier with described the 2nd IP address request.

Preferably, a described IP address request comprises: DynamicHost arranges agreement (DHCP) message; Described the 2nd IP address request comprises: described dhcp message.

Preferably, described UE sends before a described IP address request or when described UE sends a described IP address request to described non-3 GPP access network trusty to described non-3 GPP access network trusty, and described UE is by following message transmission APN (APN) information one of at least: Institute of Electrical and Electric Engineers (IEEE) 802.11 message, DynamicHost arrange agreement (DHCP) message, Extensible Authentication Protocol (EAP) message.

According to another aspect of the invention, a kind of data message transmission method is provided, comprise: non-third generation affiliate 3GPP Access Network trusty receives the first Internet Protocol IP address request that user equipment (UE) sends, for described UE distributes an IP address; Described non-3 GPP access network trusty receives the 2nd IP address request that described UE sends, and to 3GPP core net, sends conversation request message, and receives the 2nd IP address that described 3GPP core net is described UE distribution; Described non-3 GPP access network transmission trusty is by the data message of tunnel encapsulation, and wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, and the source IP address in described tunnel or object IP address are IP addresses.

Preferably, before the data message of tunnel encapsulation is passed through in described non-3 GPP access network transmission trusty, also comprise: after described non-3 GPP access network trusty receives the described IP address request that described UE sends, the information of distributing described tunnel for described UE.

Preferably, a described IP address request comprises: DynamicHost arranges protocol DHCP message; Described the 2nd IP address request comprises: described dhcp message.

According to another aspect of the invention, provide a kind of processing method of PDN connection identifier, having comprised: subscriber equipment (UE) has sent to AC/BNG by AP/RG by the message that carries APN APN information; Described UE receives a PDN connection identifier corresponding to described APN information of the described AC/BNG distribution of WLAN (wireless local area network) IAD TWAG ' forwarding trusty; Or the 2nd PDN connection identifier corresponding to described APN information of described UE reception TWAG ' distribution, wherein, described the 2nd PDN connection identifier is that described TWAG ' distributes after the message that carries described APN information that receives described AC/BNG transmission.

Preferably, UE sends to AC/BNG to comprise the message that carries APN APN information by AP/RG: described UE sends to described AP/RG by the GAS-ANQP initial request message that carries described APN information, triggers described AP/RG the CAPWAP WTP event request or the Radius request message that carry described APN information are sent to described AC/BNG.

Preferably, described UE receives a PDN connection identifier corresponding to described APN information that described AC/BNG that TWAG ' trusty forwards distributes and comprises: described UE receives the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that AP/RG sends; Wherein, described GAS-ANQP initial communication message is after described AP/RG receives the CAPWAP WTP event response corresponding to described CAPWAP WTP event request or the Radius response message corresponding to described Radius request message of described AC/BNG transmission, to described AP/RG, send, and described CAPWAP WTP event response and Radius response message all carry a described PDN connection identifier; Described CAPWAP WTP event response and Radius response message are, after described AC/BNG receives the Radius authentication response message that carries a described PDN connection identifier of described TWAG ' transmission, to described AC/BNG, to send.

Preferably, the 2nd PDN connection identifier corresponding to described APN information that described UE reception TWAG ' distributes comprises: described UE receives the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that described AP/RG sends; Wherein, described GAS-ANQP initial communication message is after described AP/RG receives the CAPWAP WTP event response corresponding to described CAPWAP WTP event request or the Radius response message corresponding to described Radius request message of described AC/BNG transmission, to described AP/RG, send, and described CAPWAP WTP event response and Radius response message all carry described the 2nd PDN connection identifier; Described CAPWAP WTP event response and Radius response message are, after described AC/BNG receives the Radius authentication response message that carries described the 2nd PDN connection identifier of described TWAG ' transmission, to described AC/BNG, to send.

Preferably, a described PDN connection identifier and the 2nd PDN connection identifier are one of following, and: PDN is connected and triggers the default bearer sign of first GTP session of setting up or session identification, Institute of Electrical and Electric Engineers IEEE 802.11u message identifier, the xid of dhcp message, client connection identifier client id, the interface identifier interferce id of PMIP session.

In accordance with a further aspect of the present invention, the processing method that a kind of PDN connection identifier is also provided, comprising: access controller/wideband network gateway (AC/BNG) receives the message that carries APN (APN) information that subscriber equipment (UE) forwards by AP/RG; Described AC/BNG is a PDN connection identifier corresponding to described APN information distribution; Or described AC/BNG sends to WLAN (wireless local area network) IAD TWAG ' trusty by the message that carries described APN information, receive the 2nd PDN connection identifier corresponding to described APN information that described TWAG ' distributes; Described AC/BNG sends to described UE by a described PDN connection identifier or described the 2nd PDN connection identifier.

Preferably, the message that carries APN information that AC/BNG reception user equipment (UE) forwards by AP/RG comprises: described AC/BNG receives the CAPWAP WTP event request that carries described APN information or the Radius request message that described AP/RG sends, wherein, described CAPWAP WTP event request or Radius request message are described AP/RG after receiving the GAS-ANQP initial request message that carries described APN information that described UE sends, and to described AP/RG, send.

Preferably, described AC/BNG sends to TWAG ' to comprise the message that carries described APN information: described AC/BNG sends to described TWAG ' by the Radius authentication request message that carries described APN information; The 2nd PDN connection identifier corresponding to described APN information that described AC/BNG receives described TWAG ' distribution comprises: described AC/BNG receives the Radius authentication response message corresponding to described Radius authentication request message that described TWAG ' sends, wherein, in described Radius authentication response message, carry the 2nd PDN connection identifier.

Preferably, described AC/BNG sends to described UE to comprise a described PDN connection identifier or the 2nd PDN connection identifier: described AC/BNG sends to AP/RG by the CAPWAP WTP event response corresponding to CAPWAP WTP event request or corresponding to the Radius response message of described Radius request message, trigger described AP/RG, by the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message, a described PDN connection identifier or described the 2nd PDN connection identifier are sent to described UE, wherein, described CAPWAP WTP event response and described Radius response message all carry a described PDN connection identifier or described the 2nd PDN connection identifier.

According to a further aspect in the invention, provide a kind of data-message transmission device, be applied to UE, having comprised: the first sending module, for sending the first Internet Protocol IP address request to non-third generation affiliate 3GPP Access Network trusty; The first receiver module is the IP address that described UE distributes for receiving described non-3 GPP access network trusty; The second sending module, for sending the 2nd IP address request to described non-3 GPP access network trusty; The second receiver module is the 2nd IP address that described UE distributes for receiving 3GPP core net; The first transport module, for transmitting the data message by tunnel encapsulation, wherein, wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, the source IP address in described tunnel or object IP address are IP addresses.

Preferably, described the first sending module is for sending an IP address request to AC/BNG; Described the first receiver module is the IP address that described UE distributes for obtaining described AC/BNG; Or described the first sending module is for sending a described IP address request to WLAN (wireless local area network) IAD TWAG ' trusty; Described the first receiver module is used for obtaining the described IP address that described TWAG ' distributes for described UE.

Preferably, said apparatus also comprises: the 3rd receiver module, for receiving described non-3 GPP access network trusty, it is the tunnel information that described UE distributes, wherein, described tunnel information is after described non-3 GPP access network trusty receives the described IP address request that described UE sends, for this UE distributes.

According to a further aspect in the invention, a kind of data-message transmission device is provided, be applied to non-third generation affiliate 3GPP Access Network trusty, comprise: the 4th receiver module, the first Internet Protocol IP address request sending for receiving user equipment (UE); The first distribution module, is used to described UE to distribute an IP address; The 5th receiver module, the 2nd IP address request sending for receiving described UE; The 3rd sending module, for sending conversation request message to 3GPP core net; The 6th receiver module is the 2nd IP address that described UE distributes for obtaining described 3GPP core net; The second transport module, for transmitting the data message by tunnel encapsulation, wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, the source IP address in described tunnel or object IP address are IP addresses.

Preferably, said apparatus also comprises: the second distribution module, and after receiving the described IP address request that described UE sends, the information of distributing described tunnel for described UE.

In accordance with a further aspect of the present invention, also provide a kind of processing unit of PDN connection identifier, be applied to UE, having comprised: the 4th sending module, for the message that carries APN APN information being sent to AC/BNG by AP/RG;

The 7th receiver module, a PDN connection identifier corresponding to described APN information distributing for receiving the described AC/BNG of WLAN (wireless local area network) IAD TWAG ' forwarding trusty; Or the 8th receiver module, be used for receiving the 2nd PDN connection identifier corresponding to described APN information that TWAG ' distributes, wherein, described the 2nd PDN connection identifier is that described TWAG ' distributes after the message that carries described APN information that receives described AC/BNG transmission.

Preferably, described the 4th sending module comprises: the 5th sending module, for the GAS-ANQP initial request message that carries described APN information is sent to described AP/RG, trigger described AP/RG the CAPWAP WTP event request or the Radius request message that carry described APN information are sent to described AC/BNG.

Preferably, the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that described the 7th receiver module sends for receiving AP/RG; Wherein, described GAS-ANQP initial communication message is after described AP/RG receives the CAPWAP WTP event response corresponding to described CAPWAP WTP event request or the Radius response message corresponding to described Radius request message of described AC/BNG transmission, to described AP/RG, send, and described CAPWAP WTP event response and Radius response message all carry a described PDN connection identifier; Described CAPWAP WTP event response and Radius response message are, after described AC/BNG receives the Radius authentication response message that carries a described PDN connection identifier of described TWAG ' transmission, to described AC/BNG, to send.

Preferably, the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that described the 8th receiver module sends for receiving described AP/RG; Wherein, described GAS-ANQP initial communication message is after described AP/RG receives the CAPWAP WTP event response corresponding to described CAPWAP WTP event request or the Radius response message corresponding to described Radius request message of described AC/BNG transmission, to described AP/RG, send, and described CAPWAP WTP event response and Radius response message all carry described the 2nd PDN connection identifier; Described CAPWAP WTP event response and Radius response message are, after described AC/BNG receives the Radius authentication response message that carries described the 2nd PDN connection identifier of described TWAG ' transmission, to described AC/BNG, to send.

In accordance with a further aspect of the present invention, a kind of processing unit of PDN connection identifier is also provided, be applied to access controller/wideband network gateway (AC/BNG), comprise: the 9th receiver module, the message that carries APN APN information forwarding by AP/RG for receiving UE; The 3rd distribution module, is used to a PDN connection identifier corresponding to described APN information distribution; Or the 6th sending module, for the message that carries described APN information being sent to WLAN (wireless local area network) IAD TWAG ' trusty, the tenth receiver module, the 2nd PDN connection identifier corresponding to described APN information distributing for receiving described TWAG '; The 7th sending module, for sending to described UE by a described PDN connection identifier or described the 2nd PDN connection identifier.

Preferably, the CAPWAP WTP event request that carries described APN information or Radius request message that described the 9th receiver module sends for receiving described AP/RG, wherein, described CAPWAP WTP event request or Radius request message are described AP/RG after receiving the GAS-ANQP initial request message that carries described APN information that described UE sends, and to described AP/RG, send.

Preferably, described the 6th sending module, for sending to described TWAG ' by the Radius authentication request message that carries described APN information; Described the tenth receiver module, being used for receiving the 2nd PDN connection identifier corresponding to described APN information that described TWAG ' distributes comprises: described AC/BNG receives the Radius authentication response message corresponding to described Radius authentication request message that described TWAG ' sends, wherein, in described Radius authentication response message, carry the 2nd PDN connection identifier.

Preferably, described the 7th sending module is for sending to AP/RG by the CAPWAP WTP event response corresponding to CAPWAP WTP event request or corresponding to the Radius response message of described Radius request message, trigger described AP/RG, by the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message, a described PDN connection identifier or described the 2nd PDN connection identifier are sent to described UE, wherein, described CAPWAP WTP event response and described Radius response message all carry a described PDN connection identifier or described the 2nd PDN connection identifier.

By the present invention, adopt UE by sending an IP address request to non-3 GPP access network trusty, receiving non-3 GPP access network trusty is the IP address that UE distributes, then UE is by sending the 2nd IP address request to non-3 GPP access network trusty, obtain the 2nd IP address that 3GPP core net is distributed for this UE, having realized the different PDN of UE distinguishes by different IP addresses, thereby in solution correlation technique, UE carries out the poor problem of data-message transmission reliability by non-3 GPP access network trusty, improved the reliability of data-message transmission, solve UE in correlation technique and carried out the poor problem of data-message transmission reliability by non-3 GPP access network, and then reached raising UE by the effect of the reliability of non-3 GPP access network data message transmission.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the 3GPP network of correlation technique and the network structure of non-3GPP network interworking;

Fig. 2 is that the UE of correlation technique accesses the schematic diagram of the framework of EPC by WLAN trusty;

Fig. 3 is the first pass figure according to the data message transmission method of the embodiment of the present invention;

Fig. 4 is the second flow chart according to the data message transmission method of the embodiment of the present invention;

Fig. 5 is according to the first structured flowchart of the data-message transmission device of the embodiment of the present invention;

Fig. 6 is preferred the first structured flowchart according to the data-message transmission device of the embodiment of the present invention;

Fig. 7 is according to the second structured flowchart of the data-message transmission device of the embodiment of the present invention;

Fig. 8 is preferred the second structured flowchart according to the data-message transmission device of the embodiment of the present invention;

Fig. 9 is according to the first pass figure of the PDN connection identifier processing method of the embodiment of the present invention;

Figure 10 is according to the second flow chart of the connection identifier processing method of the embodiment of the present invention;

Figure 11 is according to the first structured flowchart of the connection identifier processing unit of the embodiment of the present invention;

Figure 12 is preferred the first structured flowchart according to the connection identifier processing unit of the embodiment of the present invention;

Figure 13 is according to the second structured flowchart of the connection identifier processing unit of the embodiment of the present invention;

Figure 14 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart one of the flow process of access EPC;

Figure 15 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flowchart 2 of the flow process of access EPC;

Figure 16 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart 3 of the flow process of access EPC;

Figure 17 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart four of the flow process of access EPC;

Figure 18 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart five of the flow process of access EPC;

Figure 19 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart six of the flow process of access EPC;

Figure 20 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart seven of the flow process of access EPC;

Figure 21 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart eight of the flow process of access EPC;

Figure 22 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart nine of the flow process of access EPC;

Figure 23 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart ten of the flow process of access EPC;

Figure 24 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart ten of the flow process of access EPC;

Figure 25 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart 11 of the flow process of access EPC; And

Figure 26 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart 12 of the flow process of access EPC.

Embodiment

Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.

The present embodiment provides a kind of data message transmission method, and Fig. 3 is the first pass figure according to the data message transmission method of the embodiment of the present invention, and as shown in Figure 3, the method comprises the steps that S302 is to step S306.

Step S302:UE sends an IP address request to non-3 GPP access network trusty, receives the IP address that this non-3 GPP access network trusty distributes for this UE.

Step S304:UE sends the 2nd IP address request to this non-3 GPP access network trusty, receives the 2nd IP address that 3GPP core net is distributed for this UE.

Step S306:UE transmission is by the data message of tunnel encapsulation, and wherein, the source IP address of this data message or object IP address are the 2nd IP addresses, and the source IP address in this tunnel or object IP address are IP addresses.

Pass through above-mentioned steps, UE is by sending an IP address request to non-3 GPP access network trusty, receiving non-3 GPP access network trusty is the IP address that UE distributes, then UE is by sending the 2nd IP address request to non-3 GPP access network trusty, receive the 2nd IP address that 3GPP core net is distributed for this UE, having realized the different PDN of UE distinguishes by different IP addresses, thereby in solution correlation technique, UE carries out the poor problem of data-message transmission reliability by non-3 GPP access network trusty, improved the reliability of data-message transmission.

In order to realize UE, receive the flexibility of an IP address, can to non-3 GPP access network trusty, send an IP address request in the following way, receive an IP address:

Mode one: UE sends an IP address request to AC/BNG, and obtaining described AC/BNG is the IP address that described UE distributes.

Mode two: UE sends an IP address request to WLAN (wireless local area network) WLAN IAD TWAG ' trusty, obtains the IP address that described TWAG ' distributes for described UE.

The reliability sending in order to realize data message, before step S306, UE receives the information that non-3 GPP access network trusty is the described tunnel of described UE distribution, wherein, this tunnel information is after this non-3 GPP access network trusty receives the IP address request that this UE sends to be this UE distribution.

Preferably, the information in tunnel comprises: the local terminal IP address in the key in described tunnel and/or described tunnel.

Preferably, an IP address request is all undertaken associated or is carried out association by the information in described tunnel by packet data network PDN connection identifier with described the 2nd IP address request.

When implementing, can adopt multiple message for example, as an IP address request: DynamicHost arranges agreement (DHCP) message.

When implementing, can adopt multiple message as the 2nd IP address request.For example: dhcp message.

As an execution mode preferably, this UE sends before an IP address request or when this UE sends an IP address request to this non-3 GPP access network trusty to this non-3 GPP access network trusty, and this UE is by following message transmission APN APN information one of at least: Institute of Electrical and Electric Engineers (IEEE) 802.11 message, DynamicHost arrange agreement (DHCP) message, Extensible Authentication Protocol EAP message.

The present embodiment provides a kind of data message transmission method, and Fig. 4 is the second flow chart according to the data message transmission method of the embodiment of the present invention, and as shown in Figure 4, the method comprises the steps that S402 is to step S406.

Step S402: non-3 GPP access network trusty receives the IP address request that user equipment (UE) sends, for this UE distributes an IP address.

Step S404: non-3 GPP access network trusty receives the 2nd IP address request that UE sends, sends conversation request message to 3GPP core net, and receives the 2nd IP address that 3GPP core net is UE distribution.

Step S406: non-3 GPP access network transmission trusty is by the data message of tunnel encapsulation, and wherein, the source IP address of this data message or object IP address are the 2nd IP addresses, and the source IP address in this tunnel or object IP address are IP addresses.

By above-mentioned steps, realized the different PDN of UE and distinguished by different IP addresses, thereby solve UE in correlation technique, by non-3 GPP access network trusty, carry out the poor problem of data-message transmission reliability, improved the reliability of data-message transmission.

The reliability sending in order to realize data message, before the data message of tunnel encapsulation is passed through in this non-3 GPP access network transmission trusty, after described non-3 GPP access network trusty receives the described IP address request that described UE sends, the information of distributing described tunnel for UE.

Preferably, the information in this tunnel comprises: the local terminal IP address in the key in tunnel and/or tunnel.

Preferably, an IP address can be undertaken associated or be carried out association by the information in tunnel by PDN connection identifier with the 2nd IP address.

It should be noted that, in the step shown in the flow chart of accompanying drawing, can in the computer system such as one group of computer executable instructions, carry out, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.

In another embodiment, also provide a kind of data-message transmission software, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.

In another embodiment, also provide a kind of storage medium, stored above-mentioned data-message transmission software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.

The embodiment of the present invention also provides a kind of data-message transmission device, this device can be applied to UE, this data-message transmission device can be for realizing above-mentioned data message transmission method and preferred implementation, carried out explanation, repeat no more, below the module relating in this data-message transmission device is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.

Fig. 5 is according to the first structured flowchart of the data-message transmission device of the embodiment of the present invention, and as shown in Figure 5, this device comprises: the first sending module 52, the first receiver module 54, the second sending module 56, the second receiver modules 58, the first transport module 59, is described in detail said structure below.

The first sending module 52, for sending the first Internet Protocol IP address request to non-third generation affiliate 3GPP Access Network trusty; The first receiver module 54, is connected to the first sending module 52, for receiving described non-3 GPP access network trusty, is the IP address that described UE distributes; The second sending module 56, for sending the 2nd IP address request to this non-3 GPP access network trusty; The second receiver module 58, is connected to the second sending module 56, the 2nd IP address of distributing for this UE for receiving 3GPP core net; The first transport module 59, be connected to the first receiver module 54 and the second receiver module 58, for transmitting the data message by tunnel encapsulation, wherein, the source IP address of this data message or object IP address are the 2nd IP addresses, and the source IP address in described tunnel or object IP address are IP addresses.

Preferably, the first sending module 52 is for sending an IP address request to AC/BNG; The IP address that this first receiver module 54 distributes for this UE for obtaining this AC/BNG.

Preferably, the first sending module 52 is for sending an IP address request to WLAN IAD TWAG ' trusty; The IP address that the first receiver module 54 distributes for this UE for obtaining TWAG '.

Fig. 6 is preferred the first structured flowchart according to the data-message transmission device of the embodiment of the present invention, as shown in Figure 6, this device also comprises: the 3rd receiver module 62, be connected to the first transport module 59, for receiving non-3 GPP access network trusty, it is the tunnel information that described UE distributes, wherein, this tunnel information is after described non-3 GPP access network trusty receives the described IP address request that described UE sends, for this UE distributes.

The embodiment of the present invention also provides a kind of data-message transmission device, this device can be applied to non-3 GPP access network trusty, this data-message transmission device can be for realizing above-mentioned data message transmission method and preferred implementation, carried out explanation, repeat no more, below the module relating in this data-message transmission device is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.

Fig. 7 is according to the second structured flowchart of the data-message transmission device of the embodiment of the present invention, as shown in Figure 7, this device comprises: the 4th receiver module 72, the first distribution module 74, the 5th receiver module 76, the three sending module 78, the six receiver modules 79, the second transport module 70, is described in detail said structure below.

The 4th receiver module 72, the first Internet Protocol IP address request sending for receiving UE; The first distribution module 74, is connected to the second receiver module 72, is used to this UE to distribute an IP address; The 5th receiver module 76, the 2nd IP address request sending for this UE receiving, the 3rd sending module 78, is connected to the 5th receiver module 76, for sending conversation request message to 3GPP core net; The 6th receiver module 79, is connected to the 3rd sending module 76, the 2nd IP address of distributing for this UE for obtaining this 3GPP core net; The second transport module 70, be connected to the first distribution module 74 and the 6th and receive acquisition module 78, for transmitting the data message by tunnel encapsulation, wherein, the source IP address of this data message or object IP address are the 2nd IP addresses, and the source IP address in tunnel or object IP address are IP addresses.

Fig. 8 is preferred the second structured flowchart according to the data-message transmission device of the embodiment of the present invention, as shown in Figure 8, this device also comprises: the second distribution module 82, be connected to the second transport module 79, for after receiving the described IP address request that UE sends, the information of distributing described tunnel for described UE.

The present embodiment provides a kind of processing method of PDN connection identifier, and Fig. 9 is according to the first pass figure of the processing method of the PDN connection identifier of the embodiment of the present invention, and as shown in Figure 9, the method comprises the steps that S902 is to step S904.

Step S902:UE sends to AC/BNG by access point apparatus/home gateway (Access Point/Residential Gateway, referred to as AP/RG) by the message that carries APN information.

Step S904:UE receives a PDN connection identifier corresponding to this APN information of this AC/BNG distribution of TWAG ' forwarding; Or the 2nd PDN connection identifier corresponding to this APN information of this UE reception TWAG ' distribution, wherein, the 2nd PDN connection identifier is that this TWAG ' distributes after the message that carries this APN information that receives this AC/BNG transmission.

Pass through above-mentioned steps, UE sends to AC/BNG by AP/RG by the message that carries APN APN information, then receive a PDN connection identifier corresponding to this APN information that this AC/BNG that TWAG ' forwards distributes or receive the 2nd PDN connection identifier corresponding to this APN information that TWAG ' distributes, solve AC/BNG in correlation technique and cannot obtain APN, and cannot distribute the problem of PDN connection identifier.

When implementing, UE can be accomplished in several ways by AP/RG the message that carries APN APN information is sent to AC/BNG, in this preferred embodiment, realize in the following way: UE sends to this AP/RG by the GAS-ANQP initial request message that carries this APN information, triggers this AP/RG the CAPWAP WTP event request or the Radius request message that carry APN information are sent to this AC/BNG.

Corresponding to above preferred embodiment, when implementing, UE can realize in the following way receive that PDN connection identifier a: UE corresponding to this APN information that this AC/BNG that TWAG ' trusty forwards distributes receive that AP/RG sends corresponding to universal advertising business (Generic Advertisement Service, referred to as GAS)-access network vlan query protocol VLAN (Access Network Query Protocol, referred to as ANQP) the GAS-ANQP initial communication message of initial request message, wherein, this GAS-ANQP initial communication message carries a PDN connection identifier, this GAS-ANQP initial communication message is that this AP/RG receives the control corresponding to this WAP (wireless access point) of this AC/BNG transmission and (Control And Provisioning of Wireless Access Points is provided, referred to as CAPWAP) wireless terminating point (Wireless Termination Point, referred to as WTP) after the CAPWAP WTP event response or the Radius response message corresponding to this Radius request message of event request, to this AP/RG, send, and this CAPWAP WTP event response and remote identification dial user service (Remote Authentication DialIn User Service, referred to as Radius) response message all carries a PDN connection identifier, this CAPWAP WTP event response and Radius response message are, after this AC/BNG receives the Radius authentication response message that carries a PDN connection identifier of this TWAG ' transmission, to this AC/BNG, to send.

As an execution mode preferably, the 2nd PDN connection identifier: UE corresponding to APN information that this UE can receive TWAG ' distribution in the following way receives the GAS-ANQP initial communication message corresponding to this GAS-ANQP initial request message that this AP/RG sends, in this GAS-ANQP initial communication message, carry the 2nd PDN connection identifier, this GAS-ANQP initial communication message is after this AP/RG receives the CAPWAP WTP event response corresponding to this CAPWAP WTP event request or the Radius response message corresponding to this Radius request message of this AC/BNG transmission, to this AP/RG, send, and this CAPWAP WTP event response and Radius response message all carry the 2nd PDN connection identifier, this CAPWAP WTP event response and Radius response message are, after this AC/BNG receives the Radius authentication response message that carries the 2nd PDN connection identifier of this TWAG ' transmission, to this AC/BNG, to send.

When implementing, can adopt the multiple information that can identify PDN connection for example, as a PDN connection identifier and the 2nd PDN connection identifier: PDN connects the default bearer sign of first GTP session that triggers foundation or session identification, Institute of Electrical and Electric Engineers (IEEE) 802.11u message identifier, the xid of dhcp message, client connection identifier (clientid), the interface identifier (interferce id) of PMIP session.

This preferred embodiment provides a kind of PDN connection identifier processing method, and Figure 10 is according to the second flow chart of the PDN connection identifier processing method of the embodiment of the present invention, and as shown in figure 10, the method comprises the steps that S1002 is to step S1006.

Step S1002:AC/BNG receives the message that carries APN information that UE forwards by AP/RG.

Step S1004:AC/BNG is a PDN connection identifier corresponding to this APN information distribution; Or this AC/BNG sends to TWAG ' by the message that carries this APN information, receive the 2nd PDN connection identifier corresponding to this APN information that this TWAG ' distributes.

Step S1006:AC/BNG sends to this UE by a PDN connection identifier or the 2nd PDN connection identifier.

Pass through above-mentioned steps, AC/BNG receives the message that carries APN information that AP/RG forwards, then be a PDN connection identifier corresponding to this APN information distribution or the 2nd PDN connection identifier corresponding to this APN information that receives TWAG ' distribution, solve AC/BNG in correlation technique and cannot obtain APN, and cannot distribute the problem of PDN connection identifier.

When implementing, AC/BNG can be accomplished in several ways and receive the message that carries APN information that UE forwards by AP/RG, this preferred implementation provides following execution mode: AC/BNG to receive the CAPWAP WTP event request that carries this APN information or Radius request message that this AP/RG sends, wherein, this CAPWAP WTP event request or Radius request message are this AP/RG after receiving the GAS-ANQP initial request message that carries this APN information that this UE sends, and to this AP/RG, send.

As one preferably execution mode: AC/BNG can in the following way the message that carries this APN information be sent to TWAG ': this AC/BNG can send to this TWAG by the Radius authentication request message that carries this APN information.Corresponding to the preferred embodiment mode, AC/BNG can receive the 2nd PDN connection identifier corresponding to this APN information that this TWAG ' distributes in the following way: this AC/BNG receives the Radius authentication response message corresponding to this Radius authentication request message that this TWAG ' sends, wherein, in this Radius authentication response message, carry the 2nd PDN connection identifier.

When implementing, AC/BNG can send to this UE by a PDN connection identifier or the 2nd PDN connection identifier by numerous embodiments, in this preferred embodiment, this AC/BNG sends to AP/RG by the CAPWAP WTP event response corresponding to CAPWAP WTP event request or corresponding to the Radius response message of this Radius request message, trigger this AP/RG, by the GAS-ANQP initial communication message corresponding to this GAS-ANQP initial request message, the one PDN connection identifier or the 2nd PDN connection identifier are sent to this UE, wherein, this CAPWAP WTP event response and this Radius response message all carry a PDN connection identifier or the 2nd PDN connection identifier.

When implementing, can adopt the multiple information that can identify PDN connection as a PDN connection identifier and the 2nd PDN connection identifier, for example: PDN connects first general packet wireless service tunnel protocol (the General Packet Radio Service Tunnelling Protocol that triggers foundation, referred to as GTP) session identification of the default bearer of session sign or PMIP session, Institute of Electrical and Electric Engineers (IEEE) 802.11u message identifier, the xid of dhcp message, client connection identifier (clientid), interface identifier (interferce id).

In another embodiment, also provide a kind of PDN connection identifier process software, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.

In another embodiment, also provide a kind of storage medium, stored above-mentioned PDN connection identifier process software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.

The embodiment of the present invention also provides a kind of PDN connection identifier processing unit, this device can be applied to UE, this PDN connection identifier processing unit can be for realizing above-mentioned PDN connection identifier processing method and preferred implementation, carried out explanation, repeat no more, below the module relating in this PDN connection identifier processing unit is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.

Figure 11 is that as shown in figure 11, this device comprises according to the first structured flowchart of the PDN connection identifier processing unit of the embodiment of the present invention: the 4th sending module 112, the seven receiver module 114, the eight receiver modules 116, are described in detail said structure below.

The 4th sending module 112, for sending to AC/BNG by AP/RG by the message that carries APN APN information; The 7th receiver module 114, is connected to the 4th sending module 112, a PDN connection identifier corresponding to this APN information distributing for receiving this AC/BNG of TWAG ' forwarding; Or the 8th receiver module 116, be connected to the 4th sending module 112, be used for receiving the 2nd PDN connection identifier corresponding to this APN information that TWAG ' distributes, wherein, the 2nd PDN connection identifier is that this TWAG ' distributes after the message that carries this APN information that receives this AC/BNG transmission.

Figure 12 is preferred the first structured flowchart according to the data-message transmission device of the embodiment of the present invention, as shown in figure 12, the 4th sending module 112 comprises: the 5th sending module 1122, be connected to for the GAS-ANQP initial request message that carries APN information is sent to this AP/RG, trigger this AP/RG the CAPWAP WTP event request or the Radius request message that carry this APN information are sent to this AC/BNG.

Preferably, the GAS-ANQP initial communication message corresponding to this GAS-ANQP initial request message that the 7th receiver module 114 sends for receiving AP/RG; Wherein, this GAS-ANQP initial communication message is after this AP/RG receives the CAPWAP WTP event response corresponding to this CAPWAP WTP event request or the Radius response message corresponding to this Radius request message of this AC/BNG transmission, to this AP/RG, send, and this CAPWAP WTP event response and Radius response message all carry a PDN connection identifier; This CAPWAP WTP event response and Radius response message are, after this AC/BNG receives the Radius authentication response message that carries a PDN connection identifier of this TWAG ' transmission, to this AC/BNG, to send.

Preferably, the GAS-ANQP initial communication message corresponding to this GAS-ANQP initial request message that the 8th receiver module 116 sends for receiving this AP/RG; Wherein, this GAS-ANQP initial communication message is after this AP/RG receives the CAPWAP WTP event response corresponding to this CAPWAP WTP event request or the Radius response message corresponding to this Radius request message of this AC/BNG transmission, to this AP/RG, send, and this CAPWAP WTP event response and Radius response message all carry the 2nd PDN connection identifier; This CAPWAP WTP event response and Radius response message are, after this AC/BNG receives the Radius authentication response message that carries the 2nd PDN connection identifier of this TWAG ' transmission, to this AC/BNG, to send.

The embodiment of the present invention also provides a kind of PDN connection identifier processing unit, this device can be applied to AC/BNG, this PDN connection identifier processing unit can be for realizing above-mentioned PDN connection identifier processing method and preferred implementation, carried out explanation, repeat no more, below the module relating in this PDN connection identifier processing unit is described.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.

Figure 13 is according to the second structured flowchart of the data-message transmission device of the embodiment of the present invention, as shown in figure 13, this device comprises: the 9th receiver module 131, the 3rd distribution module 132, the 6th sending module 133, the tenth receiver module 134, the seven sending modules 135, are described in detail said structure below.

The 9th receiver module 131, the message that carries APN APN information forwarding by AP/RG for receiving user equipment (UE); The 3rd distribution module 132, is connected to the 9th receiver module 131, is used to a PDN connection identifier corresponding to this APN information distribution; Or the 6th sending module 133, be connected to the 9th receiver module 131, for the message that carries this APN information is sent to TWAG ', the tenth receiver module 134, the 2nd PDN connection identifier corresponding to this APN information distributing for receiving this TWAG '; The 7th sending module 135, is connected to the 3rd distribution module 132 and the tenth sending module 134, and the 2nd PDN connection identifier receiving for a PDN connection identifier that the 3rd distribution module 132 is distributed or the tenth receiver module 134 sends to this UE.

Preferably, the CAPWAP WTP event request that carries this APN information or Radius request message that the 9th receiver module 131 sends for receiving this AP/RG, wherein, this CAPWAP WTP event request or Radius request message are this AP/RG after receiving the GAS-ANQP initial request message that carries this APN information that this UE sends, and to this AP/RG, send.

Preferably, the 6th sending module 133, for sending to this TWAG ' by the Radius authentication request message that carries this APN information; The tenth receiver module 134, being used for receiving the 2nd PDN connection identifier corresponding to this APN information that this TWAG ' distributes comprises: this AC/BNG receives the Radius authentication response message corresponding to this Radius authentication request message that this TWAG ' sends, wherein, in this Radius authentication response message, carry the 2nd PDN connection identifier.

Preferably, the 7th sending module 135 is for sending to AP/RG by the CAPWAP WTP event response corresponding to CAPWAP WTP event request or corresponding to the Radius response message of this Radius request message, trigger this AP/RG, by the GAS-ANQP initial communication message corresponding to this GAS-ANQP initial request message, the one PDN connection identifier or the 2nd PDN connection identifier are sent to this UE, wherein, this CAPWAP WTP event response and this Radius response message all carry a PDN connection identifier or the 2nd PDN connection identifier.

Below in conjunction with preferred embodiment, describe, following preferred embodiment combines above-described embodiment and preferred implementation.

Preferred embodiment one

The invention provides UE by non-3GPP access to mobile network trusty, the method for carrying out many PDN connection.

For UE side, the method comprises the steps that S1 is to step S5.

Step S1:UE sends first IP address request to network, to ask to distribute local ip address.

Step S3:UE obtains after local ip address, can send second IP address request to network, take and obtains the IP address that 3GPP core net is its distribution.

Step S5:UE sends by the uplink user data message of tunnel encapsulation.

For network side: the method comprises the steps that S2 is to step S6.

Step S2: network receives first IP address request that UE sends, and this locality is UE distributing IP address.

Step S4: network receives second IP address request that UE distributes, sends and sets up S2a conversation request message to 3GPP core net, obtains 3GPP core net for the IP address of its distribution.

Step S6: network sends by the down user data message of tunnel encapsulation.

Preferred embodiment two

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, wherein, DynamicHost arranges agreement (Dynamic Host Configuration Protocol, referred to as DHCP) transmission access point (Access Point Name, referred to as APN) etc. information, TWAG ' carries out association for UE distributes tunnel twice DHCP request message of outer IP(by PDN connection identifier), Figure 14 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart of the flow process of access EPC, as shown in figure 14, the method comprises the steps that S1401 is to step S1416.

Between step S1401:UE and WLAN Access Network trusty, carry out the distinctive flow process of non-3GPP.

Step S1402:AP/RG, as EAP authenticator, carries out EAP identifying procedure, and wherein, AC/BNG, TWAG ' can be used as AAA agency; In EAP authentication response message, AC/BNG can obtain the type of service of decision-making from 3GPP aaa server, specifically comprise: seamed service distributing, or access EPC, or both allow.

Step S1403-S1403a:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, in this message, may carry APN information.After AC/BNG receives this message, can carry out the operation of lower mask body:

If do not carry APN in DHCP request message, so, it can further judge according to the type of service of decision-making, if seamed service distributing, directly this locality is UE distributing IP address; If allow access EPC, it,, as DHCP relay, is forwarded to TWAG ' by DHCP request message.

If carry APN in DHCP request message, so, it thinks to allow access EPC, and it,, as DHCP relay, is forwarded to TWAG ' by DHCP request message.

Step S1404a-step S1404:TWAG ' sends notice (DHCPv6)/DHCP by AC/BNG to UE and gives information (DHCPv4), may comprise UE IP address 1 in message.

Step S1405-step S1405a:UE sends request (DHCPv6)/DHCP request (DHCPv4) by AC/BNG to TWAG ', comprises the GRE key of UE IP address 1 and UE side in this message.

Step S1406a-step S1406:TWAG ' is according to the APN information of receiving, the local PDN connection identifier that generates, specifically generates principle as follows:

If in TWAG ', there is not the PDN connection identifier of this APN association, a newly-generated PDN connection identifier;

If in TWAG ', there is the PDN connection identifier of this APN association, TWAG ' thinks that the extra PDN under identical APN connects the request of foundation, also can a newly-generated PDN connection identifier.

PDN connection identifier can trigger the default bearer sign of first GTP session of setting up or the session identification of PMIP session for this PDN connects, also can be the authentication protocol EAP route certificate authority information of expansion, xid, client connection identifier client id, the interface identifier interferce id that DynamicHost arranges protocol DHCP message, or newly-increased sign.

Then, TWAG ' replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises GRE key, PDN connection identifier, TWAG ' the user face address of UEIP address 1, TWAG ' side in this message; Local the associated of the information such as GRE key, PDN connection identifier, TWAG ' user face address and APN of preserving of TWAG '.

Step S1407:UE again sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, can carry PDN connection identifier information in this message.After AC/BNG receives this message, according to the PDN connection identifier carrying in message, it is forwarded to TWAG ' as DHCP relay by DHCP request message.

After step S1408:TWAG ' receives DHCP request message, can find the associated information such as APN according to PDN connection identifier, then to PDN GW, send and create session request or agent binding update messages, in this message, comprise APN.

Between step S1409:PDN GW and PCRF, carry out the operation of IP-CAN session establishment.

Step S1410:PDN GW, by AAA Server, upgrades PDN GW address to HSS.

Step S1411:PDN GW sends and creates conversational response or proxy binding acknowledgment messages to non-3 GPP access network trusty, and in message, carrying PDN GW is the IP address 2 that UE distributes.

Step S1412-S1413:TWAG ' sends notice (DHCPv6)/DHCP by AC/BNG to UE and gives information (DHCPv4), comprises UE IP address 2 in message.

Step S1414:UE sends request (DHCPv6)/DHCP request (DHCPv4) by AC/BNG to TWAG ', comprises UE IP address 2 in this message.

Step S1415:TWAG ' replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises UE IP address 2 in this message; TWAG ' is local can preserve the associated of APN and UE IP address 2.

Between step S1416:UE and TWAG ', by gre tunneling, encapsulate the transmission of carrying out uplink and downlink data, UE is responsible for the encapsulation of upstream data and the decapsulation of downlink data, and TWAG ' is responsible for the encapsulation of downlink data and the decapsulation of upstream data.

It should be noted that, in above-described embodiment, GRE key and TWAG ' user face address are the information for gre tunneling encapsulation.

Above-mentioned dhcp message may only be used for distributing some other parameters except IP address, by route requests/route response message, ask distributing IP address, after step S1406 and S1415, need to increase the flow process of route requests/route response message, ask distributing IP address, other flow process below, after obtaining IP address, continues to carry out.

When 3GPP network is UMTS, GGSN replaces the PDN GW in this embodiment, and the function that strengthen is identical.

Preferred embodiment three

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, wherein, wherein, DHCP transmits the information such as APN, AC/BNG is that UE distributes the outer IP in tunnel, between UE and TWAG, realize the tunnel encapsulation to data message, twice DHCP request message carries out association by PDN connection identifier, Figure 15 is by WLAN trusty according to the UE of the embodiment of the present invention, the flowchart 2 of the flow process of access EPC, as shown in figure 15, the method comprises the steps that S1501 is to step S1518.

Between step S1501:UE and WLAN Access Network trusty, carry out the distinctive flow process of non-3GPP.

Step S1502:AP/RG, as EAP authenticator, carries out EAP identifying procedure, and wherein, AC/BNG can be used as AAA agency; In EAP authentication response message, AC/BNG can obtain the type of service of decision-making from 3GPPAAA server, specifically comprise: seamed service distributing, or access EPC, or both allow.

Step S1503:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, in this message, may carry APN information.After AC/BNG receives this message, can locally preserve the APN that UE carries, it may represent that this APN is that UE transmits by a flag bit, or the source of the APN carrying by UE own and signing different differentiation of APN information source, can locally be then an IP address 1 of UE distribution.

Step S1504:AC/BNG sends notice (DHCPv6)/DHCP to UE and gives information (DHCPv4), may comprise UE IP address 1 in message.

Step S1505:UE sends request (DHCPv6)/DHCP request (DHCPv4) to AC/BNG, comprises the GRE key of UE IP address 1 and UE side in this message.AC/BNG can carry out the operation of lower mask body:

If the local APN preserving is from AAA, so, it can further judge according to the type of service of decision-making, if seamed service distributing directly performs step S1508; If allow access EPC, perform step S1506.

If the local APN preserving, from UE, performs step S1506.

Step S1506:AC/BNG sends Radius authentication request message to TWAG ', carries the GRE key of APN, UE IP address 1 and UE side in message.

Step S1507:TWAG ' replys Radius authentication response message to AC/BNG, and the local PDN connection identifier that generates, specifically generates principle referring to the associated description of embodiment 1; In message, carry TWAG ' user face address, the GRE key of UE side, PDN connection identifier.

Step S1508:AC/BNG replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises GRE key, PDN connection identifier, TWAG ' the user face address of UE IP address 1, TWAG ' side in this message; Local the associated of the information such as GRE key, PDN connection identifier, TWAG ' user face address and APN of preserving of TWAG '.

Step S1509-S1518: specifically describe referring to step S1407-step S1416.

Dhcp message above may only be used for distributing some other parameters except IP address, by route requests/route response message, ask distributing IP address, at step S1508 and step S1517a, after S1517b, need to increase the flow process of route requests/route response message, ask distributing IP address, other flow process below, after obtaining IP address, continues to carry out.

Preferred embodiment four

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, DHCP transmits the information such as APN, AC/BNG is that UE distributes tunnel outer IP (UE and AC/BNG, between AC/BNG and TWAG, segmentation realizes the tunnel encapsulation to data message, twice DHCP request message carries out association by PDN connection identifier), the difference of the preferred embodiment and preferred embodiment three is, user data is at UE and AC/BNG, between AC/BNG and TWAG, gre tunneling encapsulation is carried out in segmentation, Figure 16 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart 3 of the flow process of access EPC, as shown in figure 16, the method comprises the steps that S1601 is to step S1618.

Between step S1601:UE and WLAN Access Network trusty, carry out the distinctive flow process of non-3GPP.

Step S1602:AP/RG, as EAP authenticator, carries out EAP identifying procedure, and wherein, AC/BNG can be used as AAA agency; In EAP authentication response message, AC/BNG can obtain the type of service of decision-making from 3GPPAAA server, specifically comprise: seamed service distributing, or access EPC, or both allow.

Step S1603:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, in this message, may carry APN information.After AC/BNG receives this message, can locally preserve the APN that UE carries, it may represent that this APN is that UE transmits by a flag bit, or the source of the APN carrying by UE own and signing different differentiation of APN information source, can locally be then an IP address 1 of UE distribution.

Step S1604:AC/BNG sends notice (DHCPv6)/DHCP to UE and gives information (DHCPv4), may comprise UE IP address 1 in message.

Step S1605:UE sends request (DHCPv6)/DHCP request (DHCPv4) to AC/BNG, comprises the GRE key 1 of UE IP address 1 and UE side in this message.AC/BNG can carry out the operation of lower mask body:

1) if the local APN preserving from AAA, so, it can further judge according to the type of service of decision-making, if seamed service distributing directly performs step S1608; If allow access EPC, perform step S1606 or S1606a.

2) if the local APN preserving, from UE, performs step S1608.

If the local PDN connection identifier that distributes of TWAG ', performs step S1606 and S1607.

Step S1606:AC/BNG sends Radius authentication request message to TWAG ', carries the GRE key 2 of APN, UE IP address 1 and AC/BNG side in message.

Step S1607:TWAG ' replys Radius authentication response message to AC/BNG, and the local PDN connection identifier that generates, specifically generates principle with preferred embodiment two, does not repeat them here; In message, carry TWAG ' user face address, the GRE key 2 of TWAG ' side, PDN connection identifier.

If the local PDN connection identifier that distributes of AC/BNG, performs step S1606a and S1607a.

The local PDN connection identifier that generates of step S1606a:AC/BNG,, specifically generate principle referring to the associated description of embodiment 1; Then, to TWAG ', send Radius authentication request message, in message, carry the GRE key 2 of APN, PDN connection identifier, UE IP address 1 and AC/BNG side.

Step S1607a:TWAG ' replys Radius authentication response message to AC/BNG, carries TWAG ' user face address, the GRE key 2 of TWAG ' side in message.

Step S1608:AC/BNG replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises GRE key 1, PDN connection identifier, AC/BNG user's face address of UE IP address 1, AC/BNG side in this message; AC/BNG can carry out the association between GRE key 1 and GRE key 2.

Step S1609-S1617: with step S1407-S1415.

When step S1618:UE sends upstream data, meeting wrapper contains the gre tunneling of GRE key 1, after AC/BNG receives, and this gre tunneling of meeting decapsulation, and find associated GRE key 2, and wrapper is containing the gre tunneling of GRE key 2, then sends to TWAG '; Otherwise downlink data is as the same.

It should be noted that: GRE key 1 is for the tunnel encapsulation between UE and AC/BNG, and GRE key 2 is for the tunnel encapsulation between AC/BNG and TWAG ', and other tunnel encapsulation illustrates with preferred embodiment two.

Preferred embodiment five

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, wherein, DHCP transmits the information such as APN, TWAG ' carries out association for UE distributes tunnel twice DHCP request message of outer IP(by tunnel key information), the difference of the preferred embodiment and preferred embodiment two is, twice DHCP request message carries out association by tunnel information, Figure 17 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart four of the flow process of access EPC, as shown in figure 17, the method comprises the steps that S1701 is to step S1715.

Step S1701-S1706: referring to the step S1401-S1406 of preferred embodiment two, difference is, TWAG ' can locally not generate PDN connection identifier, and can not transmit this information.

Step S1707:UE again sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to TWAG ', and this message, by the gre tunneling information in step S1201-S1206, is carried out gre tunneling encapsulation.

After step S1708:TWAG ' receives DHCP request message, can find associated APN information according to GRE key, then to PDN GW, send and create session request or agent binding update messages, in this message, comprise APN.

Between step S1709:PDN GW and PCRF, carry out the operation of IP-CAN session establishment.

Step S1710:PDN GW, by AAA Server, upgrades PDN GW address to HSS.

Step S1711:PDN GW sends and creates conversational response or proxy binding acknowledgment messages to non-3 GPP access network trusty, and in message, carrying PDN GW is the IP address 2 that UE distributes.

Step S1712-S1713:TWAG ' sends notice (DHCPv6)/DHCP to UE and gives information (DHCPv4), comprises UE IP address 2 in message; This message, by the gre tunneling information in step S1701-S1706, is carried out gre tunneling encapsulation.

Step S1714:TWAG ' replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises UE IP address 2 in this message; TWAG ' is local can preserve the associated of APN and UE IP address 2.This message, by the gre tunneling information in step S1701-S1706, is carried out gre tunneling encapsulation.

Between step S1715:UE and TWAG ', by gre tunneling, encapsulate the transmission of carrying out uplink and downlink data, UE is responsible for the encapsulation of upstream data and the decapsulation of downlink data, and TWAG ' is responsible for the encapsulation of downlink data and the decapsulation of upstream data.

Preferred embodiment six

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, wherein, DHCP transmits the information such as APN, AC/BNG is that UE distributes the outer IP in tunnel (between UE and TWAG, to realize the tunnel encapsulation to data message, twice DHCP request message carries out association by tunnel key information), the difference of this embodiment and preferred embodiment three is, twice DHCP request message carries out association by tunnel information, Figure 13 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart five of the flow process of access EPC, as shown in figure 18, the method comprises the steps that S1801 is to step S1815.

Step S1801-S1808: with the step S1501-S1508 of preferred embodiment three, difference is, TWAG ' can locally not generate PDN connection identifier, and can not transmit this information.

Step S1807-S1815: with the step S1707-S1715 of preferred embodiment five.

It should be noted that: in above-described embodiment, GRE key and TWAG ' user face address are the information for gre tunneling encapsulation.

Preferred embodiment seven

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, wherein, DHCP transmits the information such as APN, AC/BNG is that UE distributes tunnel outer IP (UE and AC/BNG, between AC/BNG and TWAG, segmentation realizes the tunnel encapsulation to data message, twice DHCP request message carries out association by tunnel key information), this embodiment is with the difference of preferred embodiment four: twice DHCP request message undertaken associated by tunnel information, Figure 19 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart six of the flow process of access EPC, as shown in figure 19, the method comprises the steps that S1901 is to step S1918.

Step S1901-S1908: referring to the step S1601-S1108 of preferred embodiment four, difference is, TWAG ' can locally not generate PDN connection identifier, and can not transmit this information.

Step S1909:UE again sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, and this message is that the gre tunneling by comprising GRE key 1 encapsulates between UE and AC/BNG.

After step S1910:AC/BNG receives this message, the gre tunneling that decapsulation comprises GRE key 1, then finds associated GRE key 2, encapsulates, and send to TWAG ' by the gre tunneling that comprises GRE key 2.

After step S1911:TWAG ' receives DHCP request message, can find the associated information such as APN according to GRE key 2, then to PDN GW, send and create session request or agent binding update messages, in this message, comprise APN.

Step S1912-S1914: with step S1612-S1614.

Step S1915:TWAG ' sends notice (DHCPv6)/DHCP to AC/BNG and gives information (DHCPv4), comprises UE IP address 2 in message; This message encapsulates by the gre tunneling that comprises GRE key 2, and sends to TWAG '.

Step S1916:AC/BNG receives that notice (DHCPv6)/DHCP gives information after (DHCPv4), and the gre tunneling that decapsulation comprises GRE key 2, then finds associated GRE key 1, encapsulates, and send to UE by the gre tunneling that comprises GRE key 1.

Step S1917a:UE completes DHCP request/DHCP and confirms operation (DHCPv4).Tunnel encapsulation is referring to step S1915-S1916.

Step S1917b:UE completes request/answer operation (DHCPv6).Tunnel encapsulation is referring to step S1915-S1916.

When step S1918:UE sends upstream data, meeting wrapper contains the gre tunneling of GRE key 1, after AC/BNG receives, and this gre tunneling of meeting decapsulation, and find associated GRE key 2, and wrapper is containing the gre tunneling of GRE key 2, then sends to TWAG '; Otherwise downlink data is as the same.

It should be noted that: in above-described embodiment, GRE key 1 is for the tunnel encapsulation between UE and AC/BNG, and GRE key 2 is for the tunnel encapsulation between AC/BNG and TWAG '.The explanation of other tunnel encapsulation, with preferred embodiment two, does not repeat them here.。

Above-mentioned dhcp message may only be used for distributing some other parameters except IP address, by route requests/route response message, ask distributing IP address, after correlation step, need to increase the flow process of route requests/route response message, ask distributing IP address, other flow process below, after obtaining IP address, continues to carry out.

Preferred embodiment eight

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, wherein, EAP message is transmitted the information such as APN, TWAG ' is the outer IP in UE distribution tunnel, twice DHCP request message carries out association by PDN connection identifier, Figure 20 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart seven of the flow process of access EPC, as shown in figure 20, the method comprises the steps that S2001 is to step S2018.

Between step S2001:UE and WLAN Access Network trusty, carry out the distinctive flow process of non-3GPP.

Step S2002-S2008:AP/RG, as EAP authenticator, carries out EAP identifying procedure, and wherein, AC/BNG, TWAG ' can be used as AAA agency.

In EAP authentication request message, UE may carry APN;

In EAP authentication response message, AC/BNG can obtain the type of service of decision-making from 3GPPAAA server, specifically comprise: seamed service distributing, or access EPC, or both allow.And TWAG ' can distribute a PDN connection identifier for UE, and by EAP response message, passes to UE.

Wherein, if trigger S2a session establishment by EAP authentication success, perform step S2003-S2006, specifically describe referring to step S1408-S1411, PDN GW can return to IP address 2 to TWAG ', TWAG ' is local preserve its with APN between associated.

Step S2009:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, may carry IP Address requests subtype and PDN connection identifier information in this message.If seamed service distributing is defined as a special PDN, connect, in the PDN connection identifier at this place or other newly-increased flag information, is used for distinguishing seamed service distributing and other PDN that accesses EPC are connected; If seamed service distributing is not defined as a special PDN, do not connect, can not carry so IP Address requests subtype and PDN connection identifier information this time.

Wherein, IP Address requests subtype represents local distributing IP or PDN GW distributing IP.

AC/BNG receives that soliciting (DHCPv6)/DHCP finds after (DHCPv4) message, if seamed service distributing is not defined as a special PDN, connects, and whether basis is carried PDN connection identifier and determined whether to be transmitted to TWAG '; If seamed service distributing is defined as a special PDN, connect,, according to the flag bit that is used for distinguishing seamed service distributing and other PDN that accesses EPC and is connected, define and whether be transmitted to TWAG '.

The PDN that accesses if EPC connects, and performs step S2009a.

Step S2009a:AC/BNG forwards and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to TWAG '.

Step S2010a-S2010:TWAG ' is according to IP Address requests subtype, confirm as local distributing IP address, distributing IP address 1, and gives information (DHCPv4) to UE transmission notice (DHCPv6)/DHCP by AC/BNG, may comprise UE IP address 1 in message.

Step S2011-S2012:UE and TWAG ' carry out request (DHCPv6)/DHCP request (DHCPv4) and answer (DHCPv6)/DHCP and confirm (DHCPv4) operation, for IP address 1 is further confirmed.

Step S2013-S2013a:UE again sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, can carry IP Address requests subtype and PDN connection identifier information in this message.After AC/BNG receives this message, according to the PDN connection identifier carrying in message, be confirmed to be access EPC, it,, as DHCP relay, is forwarded to TWAG ' by DHCP request message.

Step S2014:TWAG ' is according to IP Address requests subtype, and confirmation will be to PDN GW request distributing IP address.

If step S2003-S2006 does not carry out, TWAG ' can find the associated information such as APN according to PDN connection identifier, then to PDN GW, sends and creates session request or agent binding update messages, in this message, comprises APN.Specifically referring to step S2003-S2006.

Step S2015-S2016:TWAG ' sends notice (DHCPv6)/DHCP by AC/BNG to UE and gives information (DHCPv4), comprises UE IP address 2 in message;

Step S2017-S2017a:UE sends request (DHCPv6)/DHCP request (DHCPv4) by AC/BNG to TWAG ', comprises UE IP address 2 in this message;

TWAG ' replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises UE IP address 2 in this message; TWAG ' is local can preserve the associated of APN and UE IP address 2.

Between step S2018:UE and TWAG ', by gre tunneling, encapsulate the transmission of carrying out uplink and downlink data, UE is responsible for the encapsulation of upstream data and the decapsulation of downlink data, and TWAG ' is responsible for the encapsulation of downlink data and the decapsulation of upstream data.

Above-mentioned dhcp message may only be used for distributing some other parameters except IP address, by route requests/route response message, ask distributing IP address, behind step 306 and 315, need to increase the flow process of route requests/route response message, ask distributing IP address, other flow process below, after obtaining IP address, continues to carry out.

Preferred embodiment nine

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, wherein, EAP message is transmitted the information such as APN, AC/BNG is that UE distributes the outer IP in tunnel, twice DHCP request message carries out association by PDN connection identifier, Figure 21 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart eight of the flow process of access EPC, as shown in figure 21, the method comprises the steps that S2101 is to step S2120.

Between step S2101:UE and WLAN Access Network trusty, carry out the distinctive flow process of non-3GPP.

Step S2102-S2108: referring to step S2002-step S2008.

Step S2109:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, may carry IP Address requests subtype and PDN connection identifier information in this message.If seamed service distributing is defined as a special PDN, connect, in the PDN connection identifier at this place or other newly-increased flag information, is used for distinguishing seamed service distributing and other PDN that accesses EPC are connected; If seamed service distributing is not defined as a special PDN, do not connect, can not carry so IP Address requests subtype and PDN connection identifier information this time.

AC/BNG receives that soliciting (DHCPv6)/DHCP finds after (DHCPv4) message, if seamed service distributing is not defined as a special PDN, connects, and according to whether carrying PDN connection identifier, determines whether subsequent treatment is transmitted to TWAG '; If seamed service distributing is defined as a special PDN, connect,, according to the flag bit that is used for distinguishing seamed service distributing and other PDN that accesses EPC and is connected, define and whether forward subsequent treatment to TWAG '.

Step S2110:AC/BNG sends notice (DHCPv6)/DHCP to UE and gives information (DHCPv4), may comprise UE IP address 1 in message.

Step S2111:UE sends request (DHCPv6)/DHCP request (DHCPv4) to AC/BNG, comprises the GRE key of UE IP address 1 and UE side in this message.

AC/BNG judges that it is access EPC that this PDN connects, and performs step S2112-S2113.

Step S2112:AC/BNG sends Radius authentication request message to TWAG ', carries the GRE key of PDN connection identifier, UEIP address 1 and AC/BNG side in message.

Step S2113:TWAG ' replys Radius authentication response message to AC/BNG, carries TWAG ' user face address, the GRE key of TWAG ' side in message.

Step S2114:TWAG ' sends and answers (DHCPv6)/DHCP confirmation (DHCPv4) operation to UE, for IP address 1 is further confirmed.

Step S2115-S2120: referring to step S2013-S2018.

Dhcp message above may only be used for distributing some other parameters except IP address, by route requests/route response message, ask distributing IP address, after correlation step, need to increase the flow process of route requests/route response message, ask distributing IP address, other flow process below, after obtaining IP address, continues to carry out.

Preferred embodiment ten

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, the difference of this embodiment and preferred embodiment nine is, gre tunneling encapsulation is carried out in user data segmentation between UE and AC/BNG, AC/BNG and TWAG, Figure 22 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart nine of the flow process of access EPC, as shown in figure 22, the method comprises the steps that S2201 is to step S2220.

Step S2201-S2210: with step S2101-S2110.

Step S2211:UE sends request (DHCPv6)/DHCP request (DHCPv4) to AC/BNG, comprises the GRE key 1 of UE IP address 1 and UE side in this message.

AC/BNG judges that it is access EPC that this PDN connects, and performs step S2212-S2213.

Step S2212:AC/BNG sends Radius authentication request message to TWAG ', carries the GRE key 2 of AC/BNG user's face address, PDN connection identifier and AC/BNG side in message.

Step S2213:TWAG ' replys Radius authentication response message to AC/BNG, carries TWAG ' user face address, the GRE key 2 of TWAG ' side in message.

Step S2214:AC/BNG replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises GRE key 1, AC/BNG user's face address of UE IP address 1, AC/BNG side in this message; AC/BNG can carry out the association between GRE key 1 and GRE key 2.

Step S2215-S2219a: referring to step S2013-S2017.

When step S2220:UE sends upstream data, meeting wrapper contains the gre tunneling of GRE key 1, after AC/BNG receives, and this gre tunneling of meeting decapsulation, and find associated GRE key 2, and wrapper is containing the gre tunneling of GRE key 2, then sends to TWAG '; Otherwise downlink data is as the same.

Preferred embodiment 11

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, the difference of this embodiment and preferred embodiment eight is, twice DHCP request message carries out association by tunnel information, Figure 23 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart ten of the flow process of access EPC, as shown in figure 23, the method comprises the steps that S2301 is to step S2318.

Step S2301-S2308: referring to the step S2001-S2008 of preferred embodiment eight.

Step S2309-S2309a:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, may carry PDN connection identifier information in this message.If seamed service distributing is not defined as a special PDN, connect, whether basis is carried PDN connection identifier and is determined whether to be transmitted to TWAG '; If seamed service distributing is defined as a special PDN, connect,, according to the type of service of the decision-making of this PDN connection identifier association, determine whether being transmitted to TWAG '.If the type of service of decision-making, for allowing access EPC, determines to forward this message to TWAG '.

Step S2310:TWAG ' sends notice (DHCPv6)/DHCP by AC/BNG to UE and gives information (DHCPv4), may comprise UE IP address 1 in message.

Step S2311:UE sends request (DHCPv6)/DHCP request (DHCPv4) by AC/BNG to TWAG ', comprises the GRE key of UE IP address 1 and UE side in this message.

TWAG ' replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises GRE key, TWAG ' the user face address of UE IP address 1, TWAG ' side in this message; Local the associated of the information such as GRE key, PDN connection identifier, TWAG ' user face address and APN of preserving of TWAG '.

Step S2312:UE again sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to TWAG ', and this message, by gre tunneling information, is carried out gre tunneling encapsulation.

After step S2313:TWAG ' receives DHCP request message, can find associated APN information according to GRE key, then to PDN GW, send and create session request or agent binding update messages, in this message, comprise APN.Other steps are referring to step S2303-S2306.

Step S2314:TWAG ' sends notice (DHCPv6)/DHCP to UE and gives information (DHCPv4), comprises UEIP address 2 in message; This message, by gre tunneling information, is carried out gre tunneling encapsulation.

Step S2315:UE sends request (DHCPv6)/DHCP request (DHCPv4) to TWAG ', comprises UE IP address 2 in this message;

TWAG ' replys and answers (DHCPv6)/DHCP confirmation (DHCPv4) to UE, comprises UE IP address 2 in this message; TWAG ' is local can preserve the associated of APN and UE IP address 2.This message, by gre tunneling information, is carried out gre tunneling encapsulation.

Between step S2316:UE and TWAG ', by gre tunneling, encapsulate the transmission of carrying out uplink and downlink data, UE is responsible for the encapsulation of upstream data and the decapsulation of downlink data, and TWAG ' is responsible for the encapsulation of downlink data and the decapsulation of upstream data.

Preferred embodiment 12

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, the difference of this embodiment and preferred embodiment nine is, twice DHCP request message carries out association by tunnel information, Figure 24 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart ten of the flow process of access EPC, as shown in figure 24, the method comprises the steps that S2401 is to step S2420.

Step S2401-S2408: referring to the step S2301-S2308 of preferred embodiment eight.

Step S2409:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, may carry PDN connection identifier information in this message.If seamed service distributing is not defined as a special PDN, connect, according to whether carrying PDN connection identifier, determine whether subsequent treatment is transmitted to TWAG '; If seamed service distributing is defined as a special PDN, connect, according to the type of service of the decision-making of this PDN connection identifier association, decide subsequent treatment whether to be transmitted to TWAG '.If the type of service of decision-making, for allowing access EPC, determines to forward this message to TWAG '.

Step S2410:TWAG ' sends notice (DHCPv6)/DHCP by AC/BNG to UE and gives information (DHCPv4), may comprise UE IP address 1 in message.

Step S2411:UE sends request (DHCPv6)/DHCP request (DHCPv4) by AC/BNG to TWAG ', comprises the GRE key of UE IP address 1 and UE side in this message.

Step S2412:AC/BNG sends Radius authentication request message to TWAG ', carries the GRE key of PDN connection identifier, UEIP address 1 and AC/BNG side in message.

Step S2413:TWAG ' replys Radius authentication response message to AC/BNG, carries TWAG ' user face address, the GRE key of TWAG ' side in message.

Step S2414:TWAG ' sends and answers (DHCPv6)/DHCP confirmation (DHCPv4) operation to UE, for IP address 1 is further confirmed.

Step S2415-S2420: referring to step S2312-S2316.

Illustrate: in above-described embodiment, GRE key and TWAG ' user face address are the information for gre tunneling encapsulation.

Preferred embodiment 13

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, UE has been described by WLAN trusty, access EPC, the difference of this embodiment and preferred embodiment ten is, twice DHCP request message carries out association by tunnel information, Figure 25 is by WLAN trusty according to the UE of the embodiment of the present invention, the flow chart 11 of the flow process of access EPC, as shown in figure 25, the method comprises the steps that S2501 is to step S2520.

Step S2501-S2508: with the step S2001-S2008 of preferred embodiment eight.

Step S2509:UE sends and solicits (DHCPv6)/DHCP discovery (DHCPv4) message to AC/BNG, may carry PDN connection identifier information in this message.If seamed service distributing is not defined as a special PDN, connect, according to whether carrying PDN connection identifier, determine whether subsequent treatment is transmitted to TWAG '; If seamed service distributing is defined as a special PDN, connect, according to the type of service of the decision-making of this PDN connection identifier association, decide subsequent treatment whether to be transmitted to TWAG '.If the type of service of decision-making, for allowing access EPC, determines to forward this message to TWAG '.

Step S2510:TWAG ' sends notice (DHCPv6)/DHCP by AC/BNG to UE and gives information (DHCPv4), may comprise UE IP address 1 in message.

Step S2511:UE sends request (DHCPv6)/DHCP request (DHCPv4) by AC/BNG to TWAG ', comprises the GRE key 1 of UE IP address 1 and UE side in this message.

Step S2512:AC/BNG sends Radius authentication request message to TWAG ', carries the GRE key 2 of PDN connection identifier, AC/BNG user's face address and AC/BNG side in message.

Step S2513:TWAG ' replys Radius authentication response message to AC/BNG, carries TWAG ' user face address, the GRE key 2 of TWAG ' side in message.

Step S2514:TWAG ' sends and answers (DHCPv6)/DHCP confirmation (DHCPv4) operation to UE, and this message comprises AC/BNG user's face address, the GRE key 1 of AC/BNG side.

Step S2515-S2520: specifically referring to preferred embodiment seven step S1909-S1918.

Embodiment 14

This preferred embodiment provides a kind of UE by non-3 GPP access network access to mobile network, in the present embodiment, has described UE by WLAN trusty, access EPC, wherein, 802.11u message is transmitted the information such as APN, and EAP message to transmit other flow processs of the information such as APN similar.Figure 26 passes through WLAN trusty according to the UE of the embodiment of the present invention, the flow chart 12 of the flow process of access EPC, and as shown in figure 26, the method comprises the steps that S2601 is to step S2610.

Between step S2601:UE and WLAN Access Network trusty, carry out the flow processing of WLAN inside, such as comprising: the probe operation between UE and AP, the CAPWAP session establishment between AP and AC, or the operation between UE and RG etc.;

Between step S2602-S2603:UE and AP/RG, carry out the operation of GAS-ANQP request/response.

Step S2604:UE may be at inner some the operation associated and identifying procedures of carrying out of WLAN.

Between step S2605:UE and 3GPPAAA, complete EAP authentication and authorization flow process.

Step S2606:UE sends GAS-ANQP initial request message to AP/RG, carries APN information in this message;

Step S2607:AP/RG receives after above-mentioned message, to AC/BNG, sends CAPWAP WTP event request/Radius authentication request message, carries APN information in message.

After AC/BNG receives above-mentioned message, can send Radius authentication request message to TWAG ', if AC/BNG distributes PDN connection identifier, perform step S2108a-S2109a, if TWAG ' distributes PDN connection identifier, perform step S2608b-S2609b.

Step S2608a-S2609a:AC/BNG can send Radius authentication request message to TWAG ', comprises APN and PDN connection identifier information in message.

Step S2608b-S2609b:AC/BNG can send Radius authentication request message to TWAG ', comprises APN information in message; In Radius authentication response message, TWAG ' can return to PDN connection identifier to AC/BNG.

The concrete principle of PDN connection identifier of distributing is as follows:

1) if there is no the PDN connection identifier of this APN association, a newly-generated PDN connection identifier;

2), if there is the PDN connection identifier of this APN association, TWAG ' thinks that the extra PDN under identical APN connects the request of foundation, also can a newly-generated PDN connection identifier.

3) PDN connection identifier can trigger the default bearer sign of first GTP session of setting up or the session identification of PMIP session for this PDN connects, also xid, client connection identifier client id, the interface identifier interferce id of protocol DHCP message or newly-increased sign can be set for 802.11u message, DynamicHost.

Step S2608:AC/BNG receives after above-mentioned message, to AP/RG, sends CAPWAP/Radius authentication response message, and this message is carried PDN connection identifier.

Step S2609:AP/RG sends GAS-ANQP initial communication message to UE, and this message is carried PDN connection identifier.

Step S2610: with step S2009-S2018 or S2109-S2120 or S2209-S2220 or S2309-S2316 or S2409-S2419 or S2509-S2520.

Pass through above-described embodiment, data message transmission method is provided, PDN connection identifier processing method, and device, by UE, pass through to send an IP address request to non-3 GPP access network trusty, receiving non-3 GPP access network trusty is the IP address that UE distributes, then UE is by sending the 2nd IP address request to non-3 GPP access network trusty, obtain the 2nd IP address that 3GPP core net is distributed for this UE, having realized the different PDN of UE distinguishes by different IP addresses, thereby in solution correlation technique, UE carries out the poor problem of data-message transmission reliability by non-3 GPP access network trusty, and improved the reliability of data-message transmission, it should be noted that, these technique effects are not that above-mentioned all execution modes have, some technique effect is that some preferred implementation just can obtain.

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 single calculation element, or 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 storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.

This is only the preferred embodiments of the present invention above, 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., within all should being included in protection scope of the present invention.

Claims

1. a data message transmission method, is characterized in that comprising:

User equipment (UE) sends the first Internet Protocol IP address request to non-third generation affiliate 3GPP Access Network trusty, and receiving described non-3 GPP access network trusty is the IP address that described UE distributes;

Described UE sends the 2nd IP address request to described non-3 GPP access network trusty, and receiving 3GPP core net is the 2nd IP address that described UE distributes;

Described UE transmission is by the data message of tunnel encapsulation, and wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, and the source IP address in described tunnel or object IP address are IP addresses.

2. method according to claim 1, is characterized in that, UE sends an IP address request to non-3 GPP access network trusty, and receiving described non-3 GPP access network trusty is that the IP address that described UE distributes comprises:

Described UE sends an IP address request to access controller/wideband network gateway AC/BNG, and obtaining described AC/BNG is the IP address that described UE distributes; Or

Described UE sends an IP address request to WLAN (wireless local area network) WLAN IAD TWAG ' trusty, obtains the IP address that described TWAG ' distributes for described UE.

3. method according to claim 1, is characterized in that, in described UE transmission, by before the data message of tunnel encapsulation, also comprises:

Described UE receives the information that described non-3 GPP access network trusty is the described tunnel of described UE distribution, wherein, described tunnel information is that described non-3 GPP access network trusty receives after the described IP address request that described UE sends as this UE distribution.

4. according to the method in claim 2 or 3, it is characterized in that,

When described UE sends a described IP address request to AC/BNG, AC/BNG sends Radius request message to WLAN (wireless local area network) IAD TWAG ' trusty, receives the information in the described tunnel of described TWAG ' distribution.

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

The information in described tunnel comprises: the local terminal IP address in the key in described tunnel and/or described tunnel.

6. according to the method described in any one in claims 1 to 3,5, it is characterized in that,

A described IP address request is all undertaken associated or is carried out association by the information in described tunnel by packet data network PDN connection identifier with described the 2nd IP address request.

7. method according to claim 6, is characterized in that,

A described IP address request comprises: DynamicHost arranges protocol DHCP message;

Described the 2nd IP address request comprises: described dhcp message.

8. method according to claim 1, is characterized in that,

Described UE sends before a described IP address request or when described UE sends a described IP address request to described non-3 GPP access network trusty to described non-3 GPP access network trusty, and described UE is by following message transmission APN APN information one of at least: Institute of Electrical and Electric Engineers IEEE 802.11 message, DynamicHost arrange protocol DHCP message, Extensible Authentication Protocol EAP message.

9. a data message transmission method, is characterized in that comprising:

Non-third generation affiliate 3GPP Access Network trusty receives the first Internet Protocol IP address request that user equipment (UE) sends, for described UE distributes an IP address;

Described non-3 GPP access network trusty receives the 2nd IP address request that described UE sends, and to 3GPP core net, sends conversation request message, and receives the 2nd IP address that described 3GPP core net is described UE distribution;

Described non-3 GPP access network transmission trusty is by the data message of tunnel encapsulation, and wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, and the source IP address in described tunnel or object IP address are IP addresses.

10. method according to claim 9, is characterized in that, in described non-3 GPP access network transmission trusty, by before the data message of tunnel encapsulation, also comprises:

After described non-3 GPP access network trusty receives the described IP address request that described UE sends, the information of distributing described tunnel for described UE.

11. methods according to claim 10, is characterized in that,

12. according to the method described in any one in claim 9 to 11, it is characterized in that,

13. according to the method described in any one in claim 9 to 11, it is characterized in that,

Described the 2nd IP address request comprises: described dhcp message.

The processing method of 14. 1 kinds of packet data network PDN connection identifier, is characterized in that comprising:

User equipment (UE) sends to AC/BNG by access point apparatus/home gateway AP/RG by the message that carries APN APN information;

Described UE receives a PDN connection identifier corresponding to described APN information of the described AC/BNG distribution of WLAN (wireless local area network) IAD TWAG ' forwarding trusty; Or the 2nd PDN connection identifier corresponding to described APN information of described UE reception TWAG ' distribution, wherein, described the 2nd PDN connection identifier is that described TWAG ' distributes after the message that carries described APN information that receives described AC/BNG transmission.

15. methods according to claim 14, is characterized in that, UE sends to AC/BNG to comprise the message that carries APN APN information by AP/RG:

Described UE sends to described AP/RG by the universal advertising business-access network vlan query protocol VLAN GAS-ANQP initial request message that carries described APN information, triggers described AP/RG the CAPWAP WTP event request or the remote identification dial user service Radius request message that carry described APN information are sent to described AC/BNG.

16. methods according to claim 15, is characterized in that, a PDN connection identifier corresponding to described APN information that described UE receives the described AC/BNG distribution of TWAG ' forwarding trusty comprises:

Described UE receives the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that AP/RG sends;

Wherein, described GAS-ANQP initial communication message is after described AP/RG receives the CAPWAP WTP event response corresponding to described CAPWAP WTP event request or the Radius response message corresponding to described Radius request message of described AC/BNG transmission, to described AP/RG, send, and described CAPWAP WTP event response and Radius response message all carry a described PDN connection identifier; Described CAPWAP WTP event response and Radius response message are, after described AC/BNG receives the Radius authentication response message that carries a described PDN connection identifier of described TWAG ' transmission, to described AC/BNG, to send.

17. methods according to claim 15, is characterized in that, the 2nd PDN connection identifier corresponding to described APN information that described UE receives TWAG ' distribution comprises:

Described UE receives the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that described AP/RG sends;

Wherein, described GAS-ANQP initial communication message is after described AP/RG receives the CAPWAP WTP event response corresponding to described CAPWAP WTP event request or the Radius response message corresponding to described Radius request message of described AC/BNG transmission, to described AP/RG, send, and described CAPWAP WTP event response and Radius response message all carry described the 2nd PDN connection identifier; Described CAPWAP WTP event response and Radius response message are, after described AC/BNG receives the Radius authentication response message that carries described the 2nd PDN connection identifier of described TWAG ' transmission, to described AC/BNG, to send.

18. according to claim 14 to the method described in any one in 17, it is characterized in that,

It is one of following that a described PDN connection identifier and the 2nd PDN connection identifier are:

PDN connects the default bearer sign of first GTP session that triggers foundation or session identification, Institute of Electrical and Electric Engineers IEEE 802.11u message identifier, the xid of dhcp message, client connection identifier client id, the interface identifier interferce id of PMIP session.

The processing method of 19. 1 kinds of packet data network PDN connection identifier, is characterized in that comprising:

Access controller/wideband network gateway AC/BNG receives the message that carries APN APN information that user equipment (UE) forwards by AP/RG;

Described AC/BNG is a PDN connection identifier corresponding to described APN information distribution; Or described AC/BNG sends to WLAN (wireless local area network) IAD TWAG ' trusty by the message that carries described APN information, receive the 2nd PDN connection identifier corresponding to described APN information that described TWAG ' distributes;

Described AC/BNG sends to described UE by a described PDN connection identifier or described the 2nd PDN connection identifier.

20. methods according to claim 19, is characterized in that, the message that carries APN information that AC/BNG reception user equipment (UE) forwards by AP/RG comprises:

Described AC/BNG receives the CAPWAP WTP event request that carries described APN information or the Radius request message that described AP/RG sends, wherein, the control of described WAP (wireless access point) and CAPWAP wireless terminating point WTP event request or Radius request message are provided is described AP/RG after receiving the GAS-ANQP initial request message that carries described APN information that described UE sends, sends to described AP/RG.

21. methods according to claim 19, is characterized in that,

Described AC/BNG sends to TWAG ' to comprise the message that carries described APN information: described AC/BNG sends to described TWAG ' by the Radius authentication request message that carries described APN information;

The 2nd PDN connection identifier corresponding to described APN information that described AC/BNG receives described TWAG ' distribution comprises: described AC/BNG receives the Radius authentication response message corresponding to described Radius authentication request message that described TWAG ' sends, wherein, in described Radius authentication response message, carry the 2nd PDN connection identifier.

22. methods according to claim 19, is characterized in that, described AC/BNG sends to described UE to comprise a described PDN connection identifier or the 2nd PDN connection identifier:

Described AC/BNG sends to AP/RG by the CAPWAP WTP event response corresponding to CAPWAP WTP event request or corresponding to the Radius response message of described Radius request message, trigger described AP/RG, by the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message, a described PDN connection identifier or described the 2nd PDN connection identifier are sent to described UE, wherein, described CAPWAPWTP event response and described Radius response message all carry a described PDN connection identifier or described the 2nd PDN connection identifier.

23. according to claim 19 to the method described in any one in 22, it is characterized in that,

PDN connects the default bearer sign of first general packet wireless service tunnel protocol GTP session that triggers foundation or session identification, Institute of Electrical and Electric Engineers IEEE 802.11u message identifier, the xid of dhcp message, client connection identifier client id, the interface identifier interferce id of PMIP session.

24. 1 kinds of data-message transmission devices, are applied to UE, it is characterized in that comprising:

The first sending module, for sending the first Internet Protocol IP address request to non-third generation affiliate 3GPP Access Network trusty;

The first receiver module is the IP address that described UE distributes for receiving described non-3 GPP access network trusty;

The second sending module, for sending the 2nd IP address request to described non-3 GPP access network trusty;

The second receiver module is the 2nd IP address that described UE distributes for receiving 3GPP core net;

The first transport module, for transmitting the data message by tunnel encapsulation, wherein, wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, the source IP address in described tunnel or object IP address are IP addresses.

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

Described the first sending module is for sending an IP address request to AC/BNG; Described the first receiver module is the IP address that described UE distributes for obtaining described AC/BNG; Or

Described the first sending module is for sending a described IP address request to WLAN (wireless local area network) IAD TWAG ' trusty; Described the first receiver module is used for obtaining the described IP address that described TWAG ' distributes for described UE.

26. devices according to claim 24, is characterized in that, also comprise:

The 3rd receiver module, for receiving described non-3 GPP access network trusty, it is the tunnel information that described UE distributes, wherein, described tunnel information is after described non-3 GPP access network trusty receives the described IP address request that described UE sends, for this UE distributes.

27. 1 kinds of data-message transmission devices, are applied to non-third generation affiliate 3GPP Access Network trusty, it is characterized in that comprising:

The 4th receiver module, the first Internet Protocol IP address request sending for receiving user equipment (UE);

The first distribution module, is used to described UE to distribute an IP address;

The 5th receiver module, the 2nd IP address request sending for receiving described UE;

The 3rd sending module, for sending conversation request message to 3GPP core net;

The 6th receiver module is the 2nd IP address that described UE distributes for obtaining described 3GPP core net;

The second transport module, for transmitting the data message by tunnel encapsulation, wherein, the source IP address of described data message or object IP address are the 2nd IP addresses, the source IP address in described tunnel or object IP address are IP addresses.

28. devices according to claim 27, is characterized in that, also comprise:

The second distribution module, after receiving the described IP address request that described UE sends, the information of distributing described tunnel for described UE.

29. 1 kinds of packet data network PDN connection identifier processing unit, are applied to user equipment (UE), it is characterized in that comprising:

The 4th sending module, for sending to AC/BNG by AP/RG by the message that carries APN APN information;

30. devices according to claim 29, is characterized in that, described the 4th sending module comprises:

The 5th sending module, for the GAS-ANQP initial request message that carries described APN information is sent to described AP/RG, trigger described AP/RG the CAPWAP WTP event request or the Radius request message that carry described APN information are sent to described AC/BNG.

31. devices according to claim 30, is characterized in that,

The GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that described the 7th receiver module sends for receiving AP/RG;

32. devices according to claim 30, is characterized in that,

The GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message that described the 8th receiver module sends for receiving described AP/RG;

33. 1 kinds of packet data network PDN connection identifier processing unit, are applied to access controller/wideband network gateway AC/BNG, it is characterized in that comprising:

The 9th receiver module, the message that carries APN APN information forwarding by AP/RG for receiving user equipment (UE);

The 3rd distribution module, is used to a PDN connection identifier corresponding to described APN information distribution; Or the 6th sending module, for the message that carries described APN information being sent to WLAN (wireless local area network) IAD TWAG ' trusty, the tenth receiver module, the 2nd PDN connection identifier corresponding to described APN information distributing for receiving described TWAG ';

The 7th sending module, for sending to described UE by a described PDN connection identifier or described the 2nd PDN connection identifier.

34. devices according to claim 33, is characterized in that,

The CAPWAP WTP event request that carries described APN information or Radius request message that described the 9th receiver module sends for receiving described AP/RG, wherein, described CAPWAP WTP event request or Radius request message are described AP/RG after receiving the GAS-ANQP initial request message that carries described APN information that described UE sends, and to described AP/RG, send.

35. devices according to claim 34, is characterized in that,

Described the 6th sending module, for sending to described TWAG ' by the Radius authentication request message that carries described APN information;

Described the tenth receiver module, being used for receiving the 2nd PDN connection identifier corresponding to described APN information that described TWAG ' distributes comprises: described AC/BNG receives the Radius authentication response message corresponding to described Radius authentication request message that described TWAG ' sends, wherein, in described Radius authentication response message, carry the 2nd PDN connection identifier.

36. devices according to claim 34, is characterized in that,

Described the 7th sending module is for sending to AP/RG by the CAPWAP WTP event response corresponding to CAPWAP WTP event request or corresponding to the Radius response message of described Radius request message, trigger described AP/RG, by the GAS-ANQP initial communication message corresponding to described GAS-ANQP initial request message, a described PDN connection identifier or described the 2nd PDN connection identifier are sent to described UE, wherein, described CAPWAP WTP event response and described Radius response message all carry a described PDN connection identifier or described the 2nd PDN connection identifier.