Radio communication apparatus having more channel capacity...

Details Radio communication apparatus having more channel capacity... Radio communication apparatus having more channel capacity...

2005-09-06

2005-09-06

Vo, Nguyen T. (Department: 2685)

Telecommunications

Transmitter and receiver at separate stations

Plural transmitters or receivers

C455S069000, C455S103000

Reexamination Certificate

active

06941153

ABSTRACT:
A radio communication apparatus having maximized channel capacity, and a method thereof, preferably includes a transmitter having a plurality of transmitting antennae, wherein each transmitting antenna transmits on a channel using a transmission power that is allocated and a base-band signal that is modulated according to a feedback signal from a receiver. The feedback signal is preferably derived in the receiver using an algorithm that analyzes and processes a previously received signal from the plurality of transmitting antennae. Only information on the amount of transmission power to be allocated to a first transmitting antenna from the plurality of transmitting antennae is fed back. Therefore, the channel capacity may be maximized while minimizing the amount of information in a feedback signal. Further, decoupling conversion is not required, thereby reducing the size and cost of manufacturing hardware.

REFERENCES:
patent: 6192256 (2001-02-01), Whinnett
patent: 2004/0077378 (2004-04-01), Kim et al.
patent: 0973283 (2000-01-01), None
patent: 1207645 (2002-05-01), None
patent: 00/72464 (2000-11-01), None
Foschini et al., On Limits of Wireless Communications in a Fading Environment, etc.. 1998, pp.: 311-335.
Shiu et al., Fading Correlation and its Effect on the Capacity of Multielement, etc., Mar. 2000 vol. 48, No. 3, pp. 502-513.
Calculation of the Rate Distortion Function, 13.3.3 Simultaneous Description of Independent Gaussian Random Variables, pp. 347-349.
Matrix Computations—Interative Methods for Linear Systems, pp. 362-372.

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