Radio transmission apparatus and radio communication method

Details Radio transmission apparatus and radio communication method Radio transmission apparatus and radio communication method

2006-10-31

2006-10-31

Urban, Edward F. (Department: 2618)

Telecommunications

Transmitter

Diversity

C455S103000, C375S299000, C370S330000

Reexamination Certificate

active

07130592

ABSTRACT:
There is provided a radio transmitting apparatus capable of improving spectrum efficiency and a transmission rate while maintaining communication quality. The present apparatus adaptively selects space multiplex where different information (transmission signal A≠transmission signal B) is transmitted from a plurality of antennas with the same frequency, frequency multiplex where different information (transmission signal A≠transmission signal B) is transmitted from the plurality of antennas with different frequencies, space diversity where the same information is transmitted from the plurality of antennas with the same frequency, and frequency diversity where the same information (transmission signal A=transmission signal B) is transmitted from the plurality of antennas with different frequencies according to circumstances of a propagation path.

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T. Sugiyama, et al., “PDM-COFDM Scheme for Broadband Mobile Communication Systems”, SB-3-7, Section 2, Line 6, 2001, p. 578, English translation of related part.
International Search Report dated Feb. 4, 2003.

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