Searching method and apparatus for processing digital communication signals
View Patent ↗A method of searching digital communication signals in a system includes combining a plurality of channel measurements, providing output of the combining of channel measurements as an added input to the plurality of channel measurements, and acquiring a signal symbol based on results from the combining of channel measurements without addressing all timing hypothesis individually via a correlation operation.
1. A method of processing digital communication signals in a digital communication system, the method comprising:
receiving digital chip samples;
storing even phase samples of the digital chip samples in a first buffer of a plurality of buffers of the digital communication system;
storing odd phase samples of the digital chip samples in a second buffer of the plurality of buffers;
providing the even phase digital samples or the odd phase digital samples to a demodulator, wherein the demodulator is adapted to produce a symbol estimate based on the even phase digital samples or the odd phase digital samples; and
providing other ones of the even phase digital samples or the odd phase digital samples, whichever are not used by the demodulator, to a searcher, wherein the searcher is adapted to determine multi-path components in the digital communication signals.
2. The method of claim 1 , further comprising entering a power down state upon providing a sufficient number of digital samples to the searcher.
3. The method of claim 2 , further comprising leaving the power down state when a new block of data is available.