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Trusted non-3gpp access network element, access to mobile network and detachment method

A mobile network and access network technology, applied in wireless network protocols, connection management, electrical components, etc., can solve problems such as ambiguity

Active Publication Date: 2017-08-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the L3 message is used as a way to trigger TNAN and P-GW to establish a tunnel, but this message is not clear

Method used

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  • Trusted non-3gpp access network element, access to mobile network and detachment method
  • Trusted non-3gpp access network element, access to mobile network and detachment method
  • Trusted non-3gpp access network element, access to mobile network and detachment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] In this embodiment, it is mainly described that the TNAN network element itself acts as a DHCP server for the IPv4 address request under the premise that the UE signs both IPv4 and IPv6 address types at the same time. The TNAN network element establishes a session with the P-GW, and the P-GW allocates two IP addresses to the UE through a session. The TNAN network element temporarily stores the two IP addresses allocated by the P-GW for the UE; when the UE only requests the IPv6 address At this time, the TNAN network element updates the bearer message so that the unused IPv4 address can be recycled by the P-GW in time. Such as image 3 Shown.

[0097] For the UE only requests the IPv4 address, there is no need to consider how to deal with the IPv6 address, because the current 3GPP standard believes that IPv6 addresses are sufficient, and there is no need to consider how to deal with unused IPv6 addresses. IPv6 addresses will be in TNAN When the session between the network ...

Embodiment 2

[0111] This embodiment is the same as Embodiment 1. For the IPv4 address request, the TNAN network element itself acts as a DHCP server, and the TNAN network element establishes a session with the P-GW. However, the UE only subscribes to one IPv4 address type, and the TNAN network element temporarily stores an IPv4 address allocated by the P-GW for the UE; the main solution is that the specific processing when the UE only requests an IPv6 address and the unused IPv4 address is reasonably recycled problem.

[0112] Step 401: The UE and the TNAN network element execute a non-3GPP-specific process;

[0113] Steps 402-403: The UE performs 3GPP-based EAP access authentication. During the EAP access authentication process, the TNAN network element obtains the type of PDN contracted by the UE as IPv4 and IPv6. The TNAN network element receives the successful authentication returned by the HSS / AAA After the message or the authentication success trigger message returned by the HSS / AAA is r...

Embodiment 3

[0122] The difference between this embodiment and embodiment 1 is that the tunnel session created between the TNAN network element and the P-GW includes two, one is used to transfer the IPv4 address, and the other is used to transfer the IPv6 address; therefore, when the UE only requests one of them The process of how to handle the IPv4 address is also different when the IPv6 address is used. Such as Figure 5 Shown, including:

[0123] Steps 501-502: same as steps 301-302.

[0124] Step 503: During the EAP access authentication process, the TNAN network element obtains the PDN types of the UE contracted as IPv4 and IPv6, and the TNAN network element receives the authentication success message returned by HSS / AAA or is triggered by the authentication success returned by HSS / AAA After the message, a session creation request is initiated to the P-GW, and the message carries the type of PDN subscribed by the UE as IPv4.

[0125] Steps 504-505: Same as steps 304-305.

[0126] Step 506: ...

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Abstract

The present invention provides a method for accessing a mobile network through a trusted non-3GPP network. The trusted non-3GPP access network (TNAN) network element is triggered by an Extensible Authentication Protocol (EAP) authentication success message or receives EAP authentication Successfully trigger the message, establish a session with the packet data network gateway (P-GW) of the mobile network, and save the IP address assigned by the P-GW to the UE; after the TNAN network element receives the UE's IP address request message, if there is a local An IP address of the same type as the requested Packet Data Network (PDN) is allocated to the UE. The invention also provides a detachment method. The invention also provides a TNAN network element.

Description

Technical field [0001] The present invention relates to the field of mobile communications, in particular to a method for user equipment (User Equipment, UE) to access a mobile network through a trusted non-third generation partnership project (3rd Generation Partnership Project, 3GPP) and a trusted non-3GPP access network Yuan and detachment method. Background technique [0002] 3GPP’s Evolved Packet System (EPS) consists of the Evolved Universal Terrestrial Radio Access Network (E-UTRAN), Mobility Management Entity (MME), and Serving Gateway (Serving Gateway). Gateway, S-GW), Packet Data Network Gateway (P-GW) and Home Subscriber Server (HSS). [0003] EPS supports interworking with non-3GPP systems (such as figure 1 As shown), where the intercommunication with the non-3GPP system is realized through the S2a / b / c interface, and the P-GW serves as the anchor point between the 3GPP and the non-3GPP system. In the EPS system architecture diagram, non-3GPP system access is divided i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/06H04W76/02H04W76/06
CPCH04W12/06H04L63/0892H04L63/162H04L61/5014H04L61/5007H04L65/1069H04W60/00H04W80/10
Inventor 刘国燕朱春晖梁爽涂杨巍
Owner ZTE CORP
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