Method and apparatus for a frequency hopping-spread spectrum com

Details Method and apparatus for a frequency hopping-spread spectrum com Method and apparatus for a frequency hopping-spread spectrum com

1996-11-29

1999-03-23

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

370204, 370481, H04B 1500

Patent

active

058870237

ABSTRACT:
The spread spectrum communication system of the present invention is intended to equalize link capacity by taking deterioration of link quality so as to enable reliable communication which enhances the frequency diversity effect even if it is affected by the frequency selective fading or the like. Then, between a base station and a mobile station in a code division multiple access communication system which multiplexes the hopping frequencies by varying them with hopping series different for each channel, a same frequency band is used for a forward-link and a reverse-link, and the number of hopping frequencies and/or the number of hops per one data symbol being assigned is varied according to line quality. There is provided means for performing communication by multiplexing the forward- and reverse-links using the different hopping frequencies for transmission and receiving, so that the link capacity is equalized for the forward- and reverse-links.

REFERENCES:
patent: 5506863 (1996-04-01), Meidan et al.
patent: 5537416 (1996-07-01), MacDonald et al.
patent: 5640415 (1997-06-01), Pandula
patent: 5657343 (1997-08-01), Schilling
Wang, J. and Moeneclaey, M.:`Multiple hops/symbol FH-SSMA with coding for indoor radio`,IEE Proceedings-1, vol. 139, No. 1 pp. 95, and 101, Feb. 1992.

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