Device for synchronizing a receiver and a transmitter in a...

Details Device for synchronizing a receiver and a transmitter in a... Device for synchronizing a receiver and a transmitter in a...

2007-11-13

2007-11-13

Payne, David C. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C370S210000, C370S320000, C370S324000, C370S479000, C370S503000

Reexamination Certificate

active

10474785

ABSTRACT:
The present invention relates to a device (D) and an associated method for the synchronization of a DS-CDMA receiver with a synchronization code being sent periodically and discontinuously by a DS-CDMA transmitter. Said device (D) comprises partial correlation calculation means (PC) for applying partial correlation to the received sequence of data and for providing output correlation signals, transform computation means (FFT8) with half inputs being zeros for applying a transform to said output correlation signals and for providing complex output signals, a square absolute value circuit (SQUARE) for calculating the square of absolute values of said complex output signals, slot-wise non-coherent integration means (INT) for applying a non-coherent integration to said square absolute values, and, selecting means (SELMAX) for selecting a maximum from the integrated values. Thus, with the maximum selected, a slot timing and a frequency offset estimate are determined for the synchronization.

REFERENCES:
patent: 4701934 (1987-10-01), Jasper
patent: 0892528 (1999-01-01), None
patent: 0044117 (2000-07-01), None
Bian, Y.Q., Nix, A.R.; Channel adaptive multiple access and intersymbol interference cancellation techniques for TDD-mode UMTS receivers; Mar. 26-28, 2001 ; Second International Conference on 3G Mobile Communication Technologies.

Affiliated with

Also associated with

Rating

Device for synchronizing a receiver and a transmitter in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for synchronizing a receiver and a transmitter in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for synchronizing a receiver and a transmitter in a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3841358