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Method and system for realizing multi-access

A multi-access, access network technology, which is applied in the communication, connection management, network traffic/resource management and other directions between multiple stations, and can solve the multi-access scenario where multi-access cannot be realized and the P-GW cannot learn about multi-access. and other issues to achieve the effect of multiple access

Active Publication Date: 2009-11-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, multi-access cannot be realized yet, UE can only access EPC through one access network at a certain moment, and P-GW can only identify initial access and handover
After the UE accesses the EPC, if it attaches to the EPC through another access network, the P-GW cannot know that the current multi-access scenario

Method used

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  • Method and system for realizing multi-access
  • Method and system for realizing multi-access
  • Method and system for realizing multi-access

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 2 Shown is the method for the present invention to attach to the EPC through a trusted non-3GPP IP access network after the UE has accessed the PDN through the 3GPP access network (such as E-UTRAN), including the following steps:

[0029] Step 201: UE accesses EPC through 3GPP access network;

[0030] Wherein, the tunnel binding is performed between the S-GW and the P-GW through the GTP (GPRS Tunnel Protocol, General Packet Radio Service Tunneling Protocol) protocol or PMIPv6 (Proxy Mobile Internet Protocol version 6, proxy mobile Internet protocol version 6), and There may already be traffic transmitted on this tunnel.

[0031]Step 202: The UE establishes an air interface link with the gateway of the trusted non-3GPP IP access network;

[0032] Step 203: The UE interacts with the AAA through the gateway of the trusted non-3GPP IP access network to complete access authentication and authorization;

[0033] Step 204: UE sends an attach request to the gateway o...

Embodiment 2

[0044] image 3 For the present invention, after the UE has accessed the PDN through the 3GPP access network, the method for attaching to the EPC through the untrusted non-3GPP IP access network includes the following steps:

[0045] Step 301: UE accesses EPC through 3GPP access network;

[0046] Wherein, tunnel binding is performed between the S-GW and the P-GW through the GTP protocol or the PMIPv6 protocol, and services may already be transmitted on the tunnel.

[0047] Step 302: The UE sends a secure tunnel establishment request signaling to the ePDG, and adds a multi-access indication identifier to the PCO of the secure tunnel establishment request signaling, and the secure tunnel establishment request signaling passes through an untrusted non-3GPP IP access network gateway Transparently transmit to ePDG, ePDG and UE establish IPSec (Internet Protocol Security, Internet security) tunnel;

[0048] Step 303: UE interacts with AAA through the untrusted non-3GPP IP access n...

Embodiment 3

[0056] Figure 4 Shown is the method of the present invention after the UE has access to the PDN through the non-3GPP IP access network, and then attaches to the EPC through the E-UTRAN, and the tunnel binding is performed between the S-GW and the P-GW through the GTP protocol, Including the following steps:

[0057] Step 401: The UE accesses the EPC through a non-3GPP IP access network;

[0058] Among them, the PMIPv6 protocol is used for tunnel binding between the gateway of the trusted non-3GPP IP access network and the P-GW, and between the ePDG and the P-GW, and services may be transmitted on the tunnel.

[0059] Step 402: The UE sends an attach request to the MME, adds a multi-access indication identifier in the PCO of the attach request, and forwards the attach request signaling to the MME through the eNB;

[0060] Step 403: At the same time, UE interacts with AAA through E-UTRAN, MME and completes access authentication and authorization;

[0061] Step 404: After rec...

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Abstract

The invention discloses a method for realizing multi-access, which is applied in an evolved packet system EPS of a 3rd generation partnership project 3GPP. When user equipment UE gets access to a packet data network PDN through a first access network and then requests adhesion to an evolved packet core network EPC through a second access network, the UE tells a packet data gateway P-GW to perform the multi-binding of an access network gateway by carrying multi-access indicator identification in signaling sent for requesting adhesion; and the P-GW executes the multi-binding of a first access network gateway and a second access network gateway according to the received multi-access indicator identification. When the UE initiates adhesion to the EPC, the UE informs the P-GW about the adhesion as a multi-access scene, and the P-GW executes the multi-binding of a plurality of different access network gateways. The invention realizes the multi-access of the UE under the condition of having little influence on the access networks.

Description

technical field [0001] The present invention relates to a method and system for realizing multiple access, in particular to a method and system for realizing multiple access in 3GPP (3rdGeneration Partnership Project) EPS (Evolved Packet System, evolved packet system) . Background technique [0002] Such as figure 1 As shown, the EPS is composed of an access network and an evolved packet core network (EPC). The access network may be E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network), etc. The EPC includes: MME (Mobility Management Entity), S-GW (Serving Gateway, Serving Gateway), P-GW (PacketData Network GateWay, packet data network gateway), HSS (Home Subscriber Server), 3GPP AAA server (3GPP Authentication Authorization Accounting Server), PCRF (Policy and Charging Rules Function, Policy and Charging Rules Function) and other supporting nodes. [0003] Among them, MME is responsible for mobility management, n...

Claims

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Application Information

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IPC IPC(8): H04W28/00H04B7/26H04W88/16
CPCH04W76/02H04W80/04H04W76/10
Inventor 毕以峰刘军周晓云宗在峰
Owner ZTE CORP
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