Method and apparatus for multi-path delay spread detection...

Details Method and apparatus for multi-path delay spread detection... Method and apparatus for multi-path delay spread detection...

2008-04-01

2008-04-01

Pham, Brenda (Department: 2616)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S487000

Reexamination Certificate

active

07352704

ABSTRACT:
A fast, low-complexity detection scheme for determining the delays and gains of different propagation paths (i.e., multi-paths) of a received WCDMA signal. The method utilizes a continuous pilot channel that is scrambled by an known pseudo-random sequence. The received signal is provided to a multi-path searcher that passes the received signal through a matched filter with a specified number of taps. The matched filter correlates the received signal with the pilot channel. The multi-path gain and delay detection is then performed, and the delays and gains are reported for use in the WCDMA system.

REFERENCES:
patent: 5448600 (1995-09-01), Lucas
patent: 6865218 (2005-03-01), Sourour
patent: 2004/0213363 (2004-10-01), Bottomley et al.

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