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Self-adapted routing information broadcast and routing method in relay system

A relay system and self-adaptive technology, which is applied in the field of communication systems, can solve problems such as system occupancy and system performance degradation, and achieve the effects of improving performance, solving transmission overhead, and reducing transmission power consumption

Inactive Publication Date: 2008-06-04
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the broadcast of the routing table needs to occupy system resources, when the system business load is relatively large, the broadcast of the fixed routing table will reduce the performance of the system

Method used

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  • Self-adapted routing information broadcast and routing method in relay system
  • Self-adapted routing information broadcast and routing method in relay system
  • Self-adapted routing information broadcast and routing method in relay system

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Embodiment Construction

[0018] In a multi-hop communication system, broadcasting routing information will bring a relatively large system overhead. Adaptive routing broadcast information method:

[0019] When the system load is heavy, the simplified routing information is used to send, that is, the simplified information of the routing tree is sent. For example, only send routing information graphs containing first-level nodes. In this way, the newly added relay station and / or user station can obtain the most basic system routing information. Since the first-level nodes are usually fixed relay stations, the update frequency of routing information can be reduced, thereby greatly reducing the broadcast overhead of routing information.

[0020] When the system load is small, the extended (up to all) routing information is used to send, so that the newly added relay station and / or subscriber station can obtain more system routing information, thereby improving the efficiency of routing selection.

[0021...

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Abstract

The invention relates to an adaptive routing information broadcasting and a routing method in a relay system, which comprises the following steps: a base station adaptively selects the broadcasting of the routing information according to the condition of the system load; the base station informs a relay station within the coverage range of the adaptively generated routing information; a relay station which is ready for accessing the system carries out the information relay sending according to the new information of a routing table. The invention solves better the contradiction between the transmission overhead of the routing information and the system performance, and the corresponding routing algorithm reduces the emissive power consumption under the same link throughput, thus enhancing the performance of the system.

Description

Technical field [0001] The invention relates to a communication system, in particular to an adaptive routing information broadcasting and routing method in a relay system. Background technique [0002] In the relay system, there is a multi-hop wireless communication link from the user station to the base station via the relay station. Multi-hop wireless communication means that the number of communication hops between the originating node and the target node is greater than or equal to two hops, that is, the communication between the two is not directly from the originating node to the target node, but needs to pass between the originating node This is done by the relay to the relay node between the target nodes. Therefore, for a multi-hop wireless communication system, since a communication process requires multiple (≥1) receiving and sending operations, it is more difficult to accurately transmit end-to-end digital information. [0003] For a multi-hop wireless communication sy...

Claims

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Application Information

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IPC IPC(8): H04B7/15H04L12/56H04Q3/00H04W4/06H04W40/02
CPCY02D30/70
Inventor 郑旭峰何宏
Owner BEIJING SAMSUNG TELECOM R&D CENT
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