Handoff free wireless network architecture

A technology of wireless network connection and IP communication, applied in the field of IP wireless communication network

Active Publication Date: 2016-02-03
THE HONG KONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This network architecture also solves the problem of user authentication

Method used

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  • Handoff free wireless network architecture
  • Handoff free wireless network architecture
  • Handoff free wireless network architecture

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Embodiment Construction

[0023] This application proposes a brand new wireless communication network architecture. In this network architecture, mobile devices can roam freely without going through traditional handover. Handover in traditional IP wireless communication networks usually involves operations at two layers, usually referred to as layer-2 handover and layer-3 handover. Layer-2 handover operations include channel probing, user authentication, channel association, and creation of new encryption keys. The operations of a layer-3 handover include obtaining a new IP address, establishing a new tunnel, user authentication, and location update. It usually takes 3 to 15 seconds to perform the switchover. Many packets are thus lost during the handover.

[0024] The IP wireless network architecture proposed in this application eliminates these time-consuming handover procedures. This network architecture includes a thin wireless access layer (accesslayer) and a registration server (registrations...

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Abstract

An Internet protocol (IP) based wireless communication network is provided that enables device mobility without handoffs. In an aspect, mobile device of the network is configured to broadcast, via a multicast channel, an anchor router solicitation message comprising a mobile device identifier that identifies the mobile device. The mobile device then receives, via the multicast channel, an assigned IP address from an anchor router device near the mobile device based on detection of the anchor router solicitation message by the anchor router device. The mobile device further employs the assigned IP address to connect with one or more other router devices in response to movement of the mobile device to cell areas of the one or more other router devices of the network.

Description

technical field [0001] This patent relates to a wireless communication network, and relates to an IP wireless communication network without switching. Background technique [0002] Internet telephony has successfully overcome the initial hurdle of low quality, lack of interconnection. Today, VoIP quality is approaching that of wired voice. Because the cost of the Internet is lower in every respect than traditional telephone networks (eg, transmission costs, switching costs, etc.), the low cost of the Internet has driven many traditional telephone operators out of business. [0003] Current wireless cellular networks share many common characteristics with traditional telephone networks: complex structures, inefficient bandwidth utilization, and high transportation costs. IP-based mobile networks, such as mobile IP (MIP) + (WiFi) networks, can provide each user with 10 to 50 times higher capacity than wireless cellular networks. And its infrastructure cost is only one perce...

Claims

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Application Information

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IPC IPC(8): H04W12/06H04L45/74
CPCH04W12/06H04W36/18H04L12/189H04W84/18H04W12/033H04W12/50H04W12/062H04L61/5007H04W12/04H04W12/02
Inventor 李景涛
Owner THE HONG KONG UNIV OF SCI & TECH
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