Multiplex communications – Generalized orthogonal or special mathematical techniques – Fourier transform
Reexamination Certificate
2006-07-04
2006-07-04
Chin, Wellington (Department: 2664)
Multiplex communications
Generalized orthogonal or special mathematical techniques
Fourier transform
C708S403000, C370S320000, C370S335000, C370S342000, C370S441000
Reexamination Certificate
active
07072290
ABSTRACT:
A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined signal is sampled at a multiple of the chip rate. A channel response is estimated. A column of a channel correlation matrix is determined using the estimated channel response. A spread data vector is determined using the determined column, the estimated channel response, the received combined signal and a fourier transform. Data of the data signals is estimated using the spread data vector.
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De Parthapratim
Misra Raj Mani
Pan Jung-Lin
Zeira Ariela
Chin Wellington
Fox Jamal A.
InterDigital Technology Corporation
Volpe & Koenig P.C.
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