Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2008-01-22
2008-01-22
Tran, CongVan (Department: 2617)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S441000, C455S114200, C455S296000
Reexamination Certificate
active
07321563
ABSTRACT:
A apparatus and method for estimating a channel condition of a forward link by a mobile station in a mobile communication system including the mobile station and a base station for performing an operation of transmitting/receiving data using a plurality of subcarriers having mutual orthogonality. The method comprises measuring carrier-to-interference ratio (C/I) values of the subcarriers using a signal received from the base station; determining from the received signal a subcarrier for transmitting feedback information in a given coherence bandwidth; generating feedback information to be transmitted over the determined subcarrier; and transmitting the generated feedback information to the base station as information for estimating a channel condition of the forward link.
REFERENCES:
patent: 2001/0040877 (2001-11-01), Love et al.
patent: 2003/0103445 (2003-06-01), Steer et al.
patent: 2003/0161285 (2003-08-01), Tiedemann et al.
patent: 2004/0057394 (2004-03-01), Holtzman
patent: 2004/0095906 (2004-05-01), Rajkotia
Choi Ho-Kyu
Joo Pan-Yuh
Kim Dong-Hee
Kim Youn-Sun
Kwon Hwan-Joon
Samsung Electronics Co,. Ltd.
The Farrell Law Firm PC
Tran Congvan
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