Technique to permit rapid acquisition and alert channel signalli

Details Technique to permit rapid acquisition and alert channel signalli Technique to permit rapid acquisition and alert channel signalli

1994-11-18

1998-02-10

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375206, 375367, 370209, 370342, 370441, H04B 1500, H04K 100, H04L 2730

Patent

active

057177139

ABSTRACT:
An OCDMA spread spectrum communication system is provided with a PN encoded acquisition channel signal which is free of Radamacher functions. This provides a technique for very rapid acquisition of the PN code and data symbol timing; enables accurate PN chip time tracking with a minimum of power; enables accurate frequency tracking with a minimum of power; provides a technique for accurate signal power measurement at the receiver; enables the receiver to maintain code lock during deep fades; and penetrates into areas of high attenuation for paging or to alert user that he has a call waiting.

REFERENCES:
patent: 5260967 (1993-11-01), Schilling
patent: 5375140 (1994-12-01), Bustamante et al.
patent: 5383219 (1995-01-01), Whetley, III et al.
patent: 5410568 (1995-04-01), Schilling
patent: 5416797 (1995-05-01), Gilhousen et al.

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