Portable information communication terminal, program, and...

Details Portable information communication terminal, program, and... Portable information communication terminal, program, and...

2008-05-13

2008-05-13

Liu, Shuwang (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C370S319000, C370S320000, C370S321000, C370S330000, C370S335000, C342S150000, C342S151000, C342S152000, C342S153000, C342S154000, C342S193000, C342S194000, C342S196000, C333S151000, C333S152000, C333S153000, C333S154000, C333S155000, C333S193000, C333S194000, C333S196000

Reexamination Certificate

active

07372897

ABSTRACT:
The number of times for averaging operation for averaging a correlation value of a received signal and a reference signal is properly controlled. When the correlation value is not averaged, since a lower limit value TH_A of a correlation level of a distribution of timings of which a path exists is larger than an upper limit value TH_B of a correlation level of a distribution of timings of which a path does not exist, the correlation value of a path is hidden by noise. Since the averaging operation is repeated until the relation of TH_A>TH_B is satisfied, the averaging operation is stopped when the relation is satisfied. The TH_A and TH_B are decided in accordance with RSCP and ISCP of a pilot channel and RSSI of a received base band signal.

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patent: 1 067 700 (2001-01-01), None

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