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Method of controlling wireless access gateway, wireless access gateway and wireless network

A wireless access gateway and network technology, applied in the direction of wireless network protocol, wireless communication, electrical components, etc., can solve problems such as complexity, data path removal, and IP address conflicts

Active Publication Date: 2019-09-24
BRITISH TELECOMM PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Layer 2 integration can be complex to implement and requires the WAG to be part of the radio access network
Since the same IP address is associated with both UEs, this IP address conflict will create problems when the WAG routes IP traffic to UEs in non-3GPP domains
[0008] In addition, the prior art provides a method for establishing a data path between the UE and the cellular data network, but if the UE roams out of a non-3GPP network (for example, to a different non-3GPP network), the data path must be tear down
Therefore, IP address sensitive applications cannot continue to run when the UE roams between non-3GPP networks

Method used

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  • Method of controlling wireless access gateway, wireless access gateway and wireless network
  • Method of controlling wireless access gateway, wireless access gateway and wireless network
  • Method of controlling wireless access gateway, wireless access gateway and wireless network

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Embodiment Construction

[0033] will now refer to figure 1 and image 3 A first embodiment of the present invention will be described. figure 1 A wireless network 1 is illustrated comprising a wireless access gateway (WAG 10), a first Wi-Fi operator 20, a first and a second mobile network operator MNO 30, an MNO 40, and a first UE 50 and a second UE 50. Two UE 60. The WAG 10 interconnects the first Wi-Fi operator 20 with the first MNO 30 and the second MNO 40 .

[0034] WAG 10 includes: Authentication, Authorization and Accounting (AAA) proxy server 11, DCHP server 13 and GPRS gateway GTP GW 15 (including Network Address Translation NAT module 17). The WAG 10 also comprises a first communication interface adapted to communicate with the Wi-Fi operator 20 and a second communication interface adapted to communicate with the first MNO 30 and / or the second MNO 40 .

[0035] The first Wi-Fi operator 20 includes an access point 21 and an Authentication, Authorization and Accounting (AAA) server 23 . Th...

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Abstract

A wireless network including a wireless access gateway WAG and a method for routing traffic between a non-cellular network and a cellular network are provided. The WAG receives the first IP address of the UE in the cellular domain, and the WAG allocates the second IP address of the UE in the non-cellular domain from a pool of dedicated IP addresses in the non-cellular domain. The WAG also creates routing rules between the first IP address and the second IP address.

Description

technical field [0001] The present invention relates to a wireless network comprising a wireless access gateway and a method for controlling traffic roaming between a cellular network and a non-cellular network. Background technique [0002] In recent years, mobile network operators (MNOs) have become increasingly eager to integrate their cellular and non-cellular (eg, Wi-Fi) networks. This provides a mechanism for MNOs to offload cellular data traffic onto a Wi-Fi network with a wired data connection (which is often better suited for higher data demands), while seamlessly "loading" traffic back onto the cellular network . As a result, modern cellular technologies such as 3rd Generation Partnership Project (3GPP), LTE networks have evolved to include tight integration between cellular and non-cellular networks such that handovers between the two networks are properly authenticated and consistently policy and billing controls. [0003] 4G network standards provide for the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/16
CPCH04W88/16H04W12/062H04L61/5007H04W40/02H04W80/04
Inventor S·约翰逊F·斯卡希尔
Owner BRITISH TELECOMM PLC