Mobile demodulator architecture for a spread spectrum multiple a

Details Mobile demodulator architecture for a spread spectrum multiple a Mobile demodulator architecture for a spread spectrum multiple a

1995-06-20

1998-06-09

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375349, 370335, H04B 1707, H04J 1304

Patent

active

057646872

ABSTRACT:
The present invention involves demodulating a signal in a spread spectrum multiple access system employing a pilot on the forward link. The rake receiver separates the signal processing based on the period over which the processing occurs. Symbol rate processing is performed by a single time-shared multiply-accumulate datapath that services multiple finger front ends and a searcher front end. The front ends are dedicated circuits that perform all chip rate processing, producing a data vector and asserting a flag indicating the results are ready to be serviced by the shared datapath. A datapath controller arbitrates use of the datapath between the finger front ends, the searcher front end, and combining functions, configuring the datapath to service them on a first-come, first-serve basis. The controller sequences the datapath through a fixed routine as dictated by the signal processing associated with the block being serviced.

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