Selecting delay values for a rake receiver

Details Selecting delay values for a rake receiver Selecting delay values for a rake receiver

2006-08-31

2011-11-22

Timory, Kabir A (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S136000, C375S142000, C375S144000, C375S147000, C375S150000, C375S152000

Reexamination Certificate

active

08064497

ABSTRACT:
Multipath components of transmitted data symbols are received with individual delays and processed by a RAKE having a number of fingers. A delay profile indicating magnitudes for a first number of delay values is provided. Estimated magnitudes for a second number of delay values located between the first number of delay values are calculated by interpolation, and a combined delay profile is provided by combining the magnitudes for the first and second number of delay values. Delay values for peaks in the combined delay profile are determined, and a number of peak delay values (P1, P2, P) comprising the largest peak are selected from the combined delay profile. At least some of the selected peak delay values are provided to the RAKE and assigned to the fingers. This allows a reduction of current consumption and dye area, while still providing delay values with sufficient resolution for the RAKE.

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