Pulse or digital communications – Spread spectrum – Direct sequence
Reexamination Certificate
2005-10-20
2009-10-13
Tran, Khai (Department: 2611)
Pulse or digital communications
Spread spectrum
Direct sequence
C375S267000
Reexamination Certificate
active
07602837
ABSTRACT:
A wireless communication system noncollaborative, multiple input, multiple output (MIMO) space division multiple access (SDMA) system determines subscriber station combining and weighting vectors that yield a high average signal-to-interference plus noise ratio (SINR). Each subscriber station independently transmits information to a base station that allows the base station to determine a weight vector wifor each subscriber station using the determined combining vector of the subscriber station. The ithcombining vector corresponds to a right singular vector corresponding to a maximum singular value of a channel matrix between a base station and the ithsubscriber station. Each subscriber station transmits signals using a weight vectorvi, which corresponds to a left singular vector corresponding to a maximum singular value of a channel matrix between the ithsubscriber station and the base station. The base station uses the weight vector wito determine the signal transmitted by the ithsubscriber station.
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Kotecha Jayesh H.
Mundarath Jayakrishnan C.
Cannatti Michael Rocco
Freescale Semiconductor Inc.
Hamilton & Terrile LLP
Tran Khai
LandOfFree
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