Title of Invention

METHOD AND APPARATUS IN A WIRELESS TERMINAL FOR MEASURING AND COMPENSATION DC NOISE ON THE DC TONE OF A MULTI-CARRIER COMMUNICATION

Abstract

Special DC tone treatment in a wireless communications system, e.g., an OFDM system, is discussed. In the downlink, a wireless terminal receiver introduces self -interference at the DC tone from the RP/ baseband conversion. A base station thus does not transmit on the downlink DC tone according to a predetermined pattern while continuing to transmit on other downlink tones. Wireless terminals measure received signal on the downlink DC tone during the time of suspended DC tone transmission, estimate self-interference and apply a correction to other received downlink DC tones, hi the uplink DC tone interference is a composite of the assigned wireless terminal transmitter's baseband/RF conversion self-interference and air link noise. During one symbol interval of an N symbol interval dwell, the uplink DC tone is reserved for a special modulation symbol, which is a predetermined function of the other N-I modulation symbols. At the base station, its receiver receives a set of modulation symbols conveyed by the uplink DC tone for a dwell, calculates the average DC component and corrects the received N-I modulation symbols.

Full Text	The present invention relates to methods and apparatus for improving the communications for wireless communication devices using a DC tone.

Documents:

213-MUMMNP-2008-CORRESPONDENCE 11-6-2008.pdf

213-MUMMNP-2008-FORM 3 11-6-2008.pdf

213-mumnp-2008-abstract(5-2-2008).pdf

213-mumnp-2008-assignment(16-5-2008).pdf

213-mumnp-2008-claims(5-2-2008).pdf

213-MUMNP-2008-CLAIMS(AMENDED)-(18-6-2012).pdf

213-MUMNP-2008-CLAIMS(AMENDED)-(30-11-2012).pdf

213-MUMNP-2008-CLAIMS(MARKED COPY)-(18-6-2012).pdf

213-MUMNP-2008-CLAIMS(MARKED COPY)-(30-11-2012).pdf

213-mumnp-2008-correspondence(11-7-2008).pdf

213-MUMNP-2008-CORRESPONDENCE(15-10-2012)-.pdf

213-MUMNP-2008-CORRESPONDENCE(15-10-2012).pdf

213-MUMNP-2008-CORRESPONDENCE(15-12-2008).pdf

213-MUMNP-2008-CORRESPONDENCE(16-5-2008).pdf

213-MUMNP-2008-CORRESPONDENCE(30-8-2012).pdf

213-mumnp-2008-description(complete)-(5-2-2008).pdf

213-MUMNP-2008-DRAWING(13-6-2012).pdf

213-mumnp-2008-drawing(5-2-2008).pdf

213-MUMNP-2008-FORM 1(13-6-2012).pdf

213-MUMNP-2008-FORM 1(15-10-2012).pdf

213-MUMNP-2008-FORM 1(15-12-2008).pdf

213-mumnp-2008-form 1(5-2-2008).pdf

213-MUMNP-2008-FORM 13(15-10-2012).pdf

213-mumnp-2008-form 18(12-2-2008).pdf

213-mumnp-2008-form 2(5-2-2008).pdf

213-MUMNP-2008-FORM 2(TITLE PAGE)-(15-12-2008).pdf

213-mumnp-2008-form 2(title page)-(5-2-2008).pdf

213-MUMNP-2008-FORM 26(13-6-2012).pdf

213-MUMNP-2008-FORM 26(16-5-2008).pdf

213-MUMNP-2008-FORM 3 (13-6-2012).pdf

213-MUMNP-2008-FORM 3(13-6-2012).pdf

213-mumnp-2008-form 3(5-2-2008).pdf

213-mumnp-2008-form 5(5-2-2008).pdf

213-mumnp-2008-form 6(16-5-2008).pdf

213-MUMNP-2008-PETITION UNDER RULE 137(13-6-2012).pdf

213-MUMNP-2008-PETITION UNDER RULE 137-(13-6-2012).pdf

213-MUMNP-2008-PROSECUTION HISTORY OF THE CORRESPONDING EP DOCUMENT(13-6-2012).pdf

213-MUMNP-2008-PROSECUTION HISTORY OF THE CORRESPONDING US DOCUMENT(13-6-2012).pdf

213-MUMNP-2008-REPLY TO EXAMINATION REPORT(13-6-2012).pdf

213-MUMNP-2008-REPLY TO EXAMINATION REPORT(18-6-2012).pdf

213-MUMNP-2008-REPLY TO HEARING(30-11-2012).pdf

213-MUMNP-2008-US ASSIGNMENT(16-5-2008).pdf

213-mumnp-2008-wo international publication report(5-2-2008).pdf

abstract1.jpg

Drawings.pdf

Form-1.pdf

Form-3.pdf

Form-5.pdf