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Method and device for topology learning and update

A technology of topology and topology information, applied in the field of communication, can solve problems such as consuming large wireless resources, and achieve the effect of reducing complexity and cost

Active Publication Date: 2008-03-26
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If these existing solutions are used directly in wireless access networks such as those focused by the IEEE 802.16j working group, all network nodes, including BSs and RSs, must have complex functions to support these solutions, and in the topology information Switching consumes a lot of wireless resources

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  • Method and device for topology learning and update
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  • Method and device for topology learning and update

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Embodiment Construction

[0020] Preferred embodiments of the present invention are described in detail below.

[0021] Fig. 1 shows a radio access network 100 according to one embodiment of the present invention. The wireless access network 100 is, for example, a wireless access network concerned by the IEEE 802.16j working group, including a base station (BS), a relay station (RS), and a mobile station (MS). It should be understood that, for simplicity, only one cell is shown here, that is, all BSs, RSs and MSs shown in FIG. 1 belong to one cell. The relay stations include fixed relay stations and mobile relay stations. A relay station has the basic functions of a base station, but with a smaller coverage area. The use of relay stations can not only expand the coverage of the cell, but also increase the user transmission rate and increase the capacity of the cell. The fixed relay station is generally deployed at the edge of the coverage of the base station to which it belongs, to expand the covera...

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Abstract

The invention discloses a method for topological learning and updating in a radio communication network with a relay station, comprising steps: detecting the event needs topological learning and updating; judging the type of the event; topological learning and updating according to the type judgement of the event. The invention also discloses a method for topological learning and updating in a radio communication network with a relay station, comprising steps:determing an event needs topological learning and updating; reporting the event. The invention also discloses corresponding devices for the method.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, the present invention relates to a method and device for topology learning and updating. Background technique [0002] In the wireless access network, in order to improve the wireless signal coverage and increase the access rate of the mobile station (MS), a relay station (RS) can be introduced in the cell of the base station (BS). For example, the IEEE 802.16j working group was established for such wireless access networks. In such a radio access network, MAC (Media Access Control) layer / PHY (Physical) layer functions of BS and RS need to be enhanced to support RS. The interconnection between RSs can form a chain, tree or even mesh topology, so the base station must perform topology learning and updating functions in its own cell in order to control and manage the relay station located in the cell. [0003] The topology learning and updating solution in the Ad hoc (self...

Claims

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Application Information

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IPC IPC(8): H04Q7/36H04Q7/38H04B7/26
CPCH04L12/66
Inventor 金珊刘继民沈钢邹伟
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD