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Rerouting method and apparatus for mobile gateway

A technology for mobile gateways and gateways, which is applied in the direction of selecting devices, network connections, radio/inductive link selection arrangements, etc., and can solve problems such as loops, data packet loss, and unsatisfactory performance, and achieve high performance, low overhead, and reduced Effects of Latency and Packet Loss

Inactive Publication Date: 2008-01-30
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the path extension method needs to continuously extend the original route, this will lead to unreasonable new routes and even loops.
In addition, in this case, the time delay of establishing a new route cannot be ignored, and when transmitting multimedia high-speed data streams, there is still a large amount of data packet loss
Therefore, the performance of the traditional scheme of re-establishing the route to the mobile gateway is not ideal

Method used

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  • Rerouting method and apparatus for mobile gateway
  • Rerouting method and apparatus for mobile gateway
  • Rerouting method and apparatus for mobile gateway

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Embodiment Construction

[0025] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and unnecessary details and functions for the present invention will be omitted during the description to prevent confusion in the understanding of the present invention.

[0026] In order to explain the technical solution of the present invention, it is necessary to describe the state of the mobile gateway in the wireless local network.

[0027] In wireless local networks, nodes can be divided into three states according to the relationship between nodes and mobile gateways. As an example, a node may be a mobile terminal such as a mobile phone, a personal digital assistant, a portable computer. The mobile gateway is a mobile device that acts as a gateway in a wireless local network, and these mobile devices have stronger processing capabilities and comprehensive performance.

[0028] According to the present invention, based on the relationship between t...

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Abstract

The invention provides a routing reconstruction method of a movable gateway and comprises the following steps that: when a gateway adjacent node starts to transmit data to a movable gateway, the gateway adjacent node becomes a first node and broadcasts the first initiated information to all the neighboring nodes which sends back the first adjacency update information to the first node after receiving the first initiated information to inform the first node of the respective present condition. A gateway non-adjacency node which transmits data to the movable gateway is reconstructed on the routing of the movable gateway through the nodes. According to the method of the invention, seamless routing can be achieved or the outcome of data transmitting can be smoothed.

Description

technical field [0001] The invention relates to a method and a device for re-establishing a route of a mobile gateway in a wireless mobile network. In particular, it relates to a method and device for realizing fast re-routing of a mobile gateway in a wireless mobile network, which can reduce the delay in establishing a new route and reduce the loss of data packets caused by re-establishing a route during the moving process of the mobile gateway. Background technique [0002] In future wireless environments, nodes in the local network access the backbone network through mobile gateways. Due to the mobile nature of the gateway, it is necessary to solve the problem of how to maintain the mobile link in the wireless network. [0003] In the wireless local network, in order to save energy and increase the transmission rate, all mobile terminals can be connected to the Internet through the mobile gateway in a multi-hop manner. In this case, the mobile gateway is the egress of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/66H04L29/06H04Q7/22H04W40/34H04W88/16
Inventor 黄卿白勇陈岚
Owner NTT DOCOMO INC