Wireless transmission apparatus and wireless transmission...

Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater

Reexamination Certificate

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C375S240270

Reexamination Certificate

active

08000651

ABSTRACT:
A wireless transmission apparatus capable of suppressing a reduction in coverage area of a base station apparatus and improving the transmission rate in the coverage area. According to this apparatus, a mobile station (10) generates a transport signal addressed to a base station (30) and transmits it to a plurality of relay stations (20-1,20-2), each of which then generates a relay signal from the transport signal and transmits the relay signal to the base station (30). A relay instructing part (115) of the mobile station (10) decides first and second different instructions having their respective instruction contents for the generation of the relay signals. The relay instructing part (115) then sends the first instruction to the relay station (20-1), which is one of the plurality of relay stations (20-1,20-2), while sending the second instruction to the relay station (20-2), which is another one of the plurality of relay stations (20-1,20-2).

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B. Zhao, et al., “Distributed turbo coded diversity for relay channel,” Electronics Letters, IEEE, vol. 39, No. 10, May 2003, pp. 786-787.
PCT International Search Report dated Mar. 20, 2006.

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