KR20120120489A

5G,4G,3G

Title

Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system

Application Number:

KR20120101169

Publication Date:

01-11-2012

Current Assignee:

NOT AVAILABLE

Family ID:

35908129

Application Date:

12-09-2012

Declaring Company:

INTERDIGITAL INC

Publication Country:

US

Priority Date:

12-08-2004

View on Espacenet goto-link

Title

Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system

Application Number:

KR20120101169

Family ID:

35908129

Publication Country:

US

Publication Date:

01-11-2012

Application Date:

12-09-2012

Priority Date:

12-08-2004

Current Assignee:

NOT AVAILABLE

Declaring Company:

INTERDIGITAL INC

View on Espacenet goto-link

Abstract  Abstract

PURPOSE: A method and apparatus for performing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system are provided to allow powerful channel estimation under all channel conditions regardless of channel information feedbacks. CONSTITUTION: A transmitter(110) includes a plurality of transmission antennas and a circuit which generates a data stream coded by a primary channel. The circuit generates data by performing SFBC(space frequency block coding) for a data stream which is coded by a primary channel. The circuit applies a precoding matrix to data encoded by SFBC in order to map the data with a transmission antenna. The circuit transmits the mapped data through multiple subcarriers as an OFDM(orthogonal frequency division multiplexing) signal. (Reference numerals) (112) Channel coder; (114) Multiplexer; (116) Power load unit; (118) SFBC encoding unit; (120) S/P converter; (122,134) Eigen beamformer; (124) IFFT unit; (132) FFT unit; (136) SFBC decoding unit; (138) Coupler; (140) Channel estimator; (142) CSI generation unit; (144) Channel decoder; (146) CQI generator; (AA) Channel; (BB) Feedback

Note:

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