Multi-hop wireless transmission system as well as relay method and relay station in same

Abstract

The invention provides a relay method in a multi-hop wireless transmission system as well as the multi-hop wireless transmission system and a relay station applying the same. In the invention, a relay station which is originally deployed for relaying communication between a base station and a movable station in the multi-hop wireless transmission system is named as a common relay station. The relay station of the invention is called as a help relay station which can solely decide whether to provide help for the common relay station or not and can be unseen by the base station and the movable station, i.e. the help relay station can not generate a signaling between the help relay station and the base station or the movable station so that the help relay station in implementation can not generate additional signaling overload in the multi-hop wireless transmission system. Meanwhile, a helped relay station with poor relay quality can effectively improve the relay quality by the help of the help relay station, and accordingly, the system performance of the multi-hop wireless transmission system is improved.

Description

Technical field [0001] The present invention relates to wireless communication technology, in particular to a multi-hop wireless communication system and a relay method and relay station in the system. Background technique [0002] Multihop wireless communication technology is one of the current research and development hotspots in the field of wireless communication technology. The multihop wireless communication system represents a development trend of future wireless communication systems. For example, the Institute of Electrical and Electronics Engineers (IEEE) has established a Relay Task Group to devote itself to introducing the concept of relay stations into wireless communication systems based on the IEEE802.16 series of standards. [0003] The powerful advantage of multi-hop wireless communication systems lies in the adoption of relay stations. By adopting the relay station, the coverage of the base station in the traditional wireless cellular communication system can be ...

AI Technical Summary

Problems solved by technology

Although this distributed link management method can reduce part of the signaling overhead of the base station for link management, the base station still has to manage the communication link between itself and the relay station. Therefore, when the number of relay stations increases, the use of Growth in signaling overhead for link management is still unavoidable

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