Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2007-11-27
2007-11-27
Payne, David C. (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S229000
Reexamination Certificate
active
10371795
ABSTRACT:
Techniques for performing equalization of multiple signals received by a terminal in soft handoff with multiple base stations. The received signal at the terminal is conditioned and digitized to provide a stream of received samples, which is then equalized/filtered with multiple sets of coefficients to provide multiple streams of transmit chip estimates. One set of coefficients is provided for each base station and is used to provide a corresponding stream of transmit chip estimates. The multiple streams of transmit chip estimates are further processed to provide multiple streams of data symbol estimates, one stream of data symbol estimates for each base station. The multiple streams of data symbol estimates are then scaled with multiple scaling factors and combined to provide a stream of combined data symbol estimates. The processing for the multiple base stations may be performed by a single hardware unit in a time division multiplexed manner.
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Fernandez-Corbaton Ivan Jesus
Jayaraman Srikant
Smee John
Ettehadieh Aslan
Harnois, Jr. Albert J.
Payne David C.
QUALCOMM Incorporated
Rouse Thomas R.
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