Look-up table implementation of WCDMA frame synchronization...

Details Look-up table implementation of WCDMA frame synchronization... Look-up table implementation of WCDMA frame synchronization...

2007-09-18

2007-09-18

Nguyen, Duc M. (Department: 2617)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C370S335000, C370S350000, C375S149000

Reexamination Certificate

active

10437866

ABSTRACT:
The present invention is directed towards a look-up table implementation of a WCDMA frame synchronization and a cell group ID detection (both of which are comprised within a “secondary search” process). The secondary search process receives a signal (which is formatted as slots within a frame) and determines (“decides”) information encoded in the received signal according to the slots of the received signal. The determined information is used to produce a sequence of values. A sequence of values (which have been determined from successive slots) is used to produce an index into a table that stores secondary search results. The secondary search codes are arranged such that a minimum sequence of values can be used to determine frame synchronization and group identification. The table is configured to return information that is sufficient for determining frame synchronization and the group ID of the received signal.

REFERENCES:
patent: 4979169 (1990-12-01), Almond et al.
patent: 6480504 (2002-11-01), Wang et al.

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