Method and apparatus for downlink joint detection in a communication system
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United States of America Patent
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Jan 9, 2007
Grant Date -
May 22, 2003
app pub date -
Jun 3, 2002
filing date -
Jun 1, 2001
priority date (Note) -
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Abstract
A ZF joint detection apparatus for a downlink receiver, the apparatus comprising: a channel estimator for estimating a channel impulse response of a multipath fading channel of a received signal; a channel equalizer for estimating a transmission signal by performing channel compensation and removing multipath interference by a deconvolution technique based on the estimated channel impulse response; and a user detector for detecting a symbol-level data sequence transmitted by a specific user by despreading the transmission signal estimated by the channel equalizer with a spreading code for the specific user and a scrambling code.
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