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Mechanism for gateway discovery layer-2 mobility

A wireless access gateway, computer technology, applied in the direction of access restriction, network data management, connection management, etc.

Inactive Publication Date: 2015-12-16
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unlike device movement in 3GPP networks, there may be no explicit TWAG relocation via explicit signaling

Method used

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  • Mechanism for gateway discovery layer-2 mobility
  • Mechanism for gateway discovery layer-2 mobility
  • Mechanism for gateway discovery layer-2 mobility

Examples

Experimental program
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Embodiment Construction

[0022] This application describes techniques for gateway discovery and layer 2 mobility. In a trusted wireless local area network (WLAN) connected to an evolved packet core (EPC) network, multiple trusted wireless access gateways (TWAGs) may serve multiple access points. The UE sends a signaling message to the TWAG, and may need to discover the address of the TWAG. As the UE moves between different access points, the TWAG serving the UE may have changed. A UE may need to discover whether the same TWAG is serving the UE. The present application provides a technique for optimizing user equipment (UE) moving between different access points.

[0023] In this disclosure, the word "exemplary" is used to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a concre...

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PUM

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Abstract

A system and method for gateway discovery and Layer-2 mobility are operable by an access terminal that connects to an access point. The access terminal determines (820) security credentials and addressing and routing configurations used previously. The access terminal determines (830) whether the security credentials may be reused by the access terminal to perform authentication with an access network and also determines (840) whether the addressing and routing configurations may be reused by the access terminal. In a related system and method, a network entity receives an inquiry (1010) from an access terminal regarding whether a prior Trusted Wireless Access Gateway (TWAG) is reusable by the access terminal as a current TWAG. The network entity determines (1020) whether the prior TWAG is reusable and may send response (1030) to the access terminal indicating whether the prior TWAG is reusable.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application Serial No. 61 / 818,347, filed May 1, 2013, entitled "MECHANISMFORGATEWAYDISCOVERYANDLAYER2MOBILITYINWLANNETWORKSCONNECTEDTOANEPC." The entire contents of the above application are incorporated herein by reference. technical field [0003] Aspects of the present application relate generally to wireless communication systems, and more specifically, to techniques for gateway discovery. Background technique [0004] The present application relates to wireless communication systems, and more particularly, to methods and apparatus for gateway discovery and layer 2 mobility. [0005] Wireless networks can be deployed over a defined geographic area to provide various types of services (eg, voice, data, multimedia services, etc.) to users in the geographic area. A wireless communication network may include a number of base stations that can support commun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/18H04W36/12H04W48/20H04W48/18H04W76/02H04W88/16
CPCH04W8/18H04W36/12H04W48/18H04W48/20H04W88/16H04W76/10H04W12/062H04W12/082H04W36/0038
Inventor S·法钦
Owner QUALCOMM INC