Title of Invention | FRACTIONALLY-SPACED EQUALIZERS FOR SPREAD SPECTRUM WIRELESS COMMUNICATION |
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Abstract | This disclosure describes equalization techniques for spread spectrum wireless communication. The techniques may involve estimating a channel impulse response, estimating channel variance, and selecting filter coefficients for an equalizer based on the estimated channel impulse response and the estimated channel variance. Moreover, in accordance with this disclosure, the channel variance estimation involves estimation of two or more co-variances for different received samples. Importantly, the equalizer is 'fractionally spaced' which means that the equalizer defines fractional filtering coefficients (filter taps), unlike conventional equalizers that presume that filter coefficients are defined at integer chip spacing. The techniques can allow the equalizer to account for antenna diversity, such as receive diversity, transmit diversity, or possibly both. |
Full Text | A number of spread spectrum wirless communication techniques have been developed. For example, one common spread spectrum technique used in wirless communication........................... |
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562-MUMNP-2008-ABSTRACT(25-3-2008).pdf
562-MUMNP-2008-CLAIMS(25-3-2008).pdf
562-MUMNP-2008-CLAIMS(AMENDED)-(25-2-2013).pdf
562-MUMNP-2008-CLAIMS(AMENDED)-(29-6-2012).pdf
562-MUMNP-2008-CLAIMS(MARKED COPY)-(25-2-2013).pdf
562-MUMNP-2008-CORRESPONDENCE 12-6-2008.pdf
562-MUMNP-2008-CORRESPONDENCE(12-2-2013).pdf
562-MUMNP-2008-CORRESPONDENCE(12-6-2008).pdf
562-MUMNP-2008-CORRESPONDENCE(17-9-2008).pdf
562-MUMNP-2008-CORRESPONDENCE(4-9-2012).pdf
562-MUMNP-2008-DESCRIPTION(COMPLETE)-(25-3-2008).pdf
562-MUMNP-2008-DRAWING(25-3-2008).pdf
562-MUMNP-2008-DRAWING(29-6-2012).pdf
562-MUMNP-2008-EP DOCUMENT(29-6-2012).pdf
562-MUMNP-2008-FORM 1(25-3-2008).pdf
562-MUMNP-2008-FORM 1(29-6-2012).pdf
562-MUMNP-2008-FORM 1(4-9-2012).pdf
562-MUMNP-2008-FORM 13(4-9-2012).pdf
562-MUMNP-2008-FORM 18(2-5-2008).pdf
562-MUMNP-2008-FORM 2(COMPLETE)-(25-3-2008).pdf
562-MUMNP-2008-FORM 2(TITLE PAGE)-(25-3-2008).pdf
562-MUMNP-2008-FORM 26(12-6-2008).pdf
562-MUMNP-2008-FORM 26(29-6-2012).pdf
562-MUMNP-2008-FORM 3(17-9-2008).pdf
562-MUMNP-2008-FORM 3(25-3-2008).pdf
562-MUMNP-2008-FORM 5(25-3-2008).pdf
562-MUMNP-2008-MARKED COPY(29-6-2012).pdf
562-MUMNP-2008-POWER OF ATTORNEY 12-6-2008.pdf
562-MUMNP-2008-REPLY TO EXAMINATION REPORT(29-6-2012).pdf
562-MUMNP-2008-REPLY TO HEARING(25-2-2013).pdf
562-MUMNP-2008-SPECIFICATION(AMENDED)-(25-2-2013).pdf
562-MUMNP-2008-SPECIFICATION(AMENDED)-(29-6-2012).pdf
562-MUMNP-2008-US DOCUMENT29-6-2012).pdf
562-MUMNP-2008-WO INTERNATIONAL PUBLICATION REPORT(25-3-2008).pdf
Patent Number | 255740 | |||||||||||||||
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Indian Patent Application Number | 562/MUMNP/2008 | |||||||||||||||
PG Journal Number | 12/2013 | |||||||||||||||
Publication Date | 22-Mar-2013 | |||||||||||||||
Grant Date | 19-Mar-2013 | |||||||||||||||
Date of Filing | 25-Mar-2008 | |||||||||||||||
Name of Patentee | QUALCOMM INCORPORATED | |||||||||||||||
Applicant Address | 5775 MOREHOUSE DRIVE, SAN DIEGO, CALIFORNIA 92121-1714, | |||||||||||||||
Inventors:
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PCT International Classification Number | H04B1/707 | |||||||||||||||
PCT International Application Number | PCT/US2006/036137 | |||||||||||||||
PCT International Filing date | 2006-09-15 | |||||||||||||||
PCT Conventions:
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