Reduction of synchronous fading effects by time hopping of user

Details Reduction of synchronous fading effects by time hopping of user Reduction of synchronous fading effects by time hopping of user

1989-05-02

1991-05-28

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 951, 455 52, H04J 316

Patent

active

050200569

ABSTRACT:
A method for the reduction of synchronous fading effects in a time-diversity multiple-access communications system, in which the data to/from a particular user is to appear in a particular assigned slot, varies the position of the time slot assigned to that particular user, so that the slot has a different position in each successive frame in which that assigned slot appears. The position may be set relative to a frame feature, such as its start time and the like. Selected-schedule patterns may be used, with the pattern either being preset at the various stations or being sent to the stations prior to use, as part of a preamble, in-band supervisory signaling and the like.

REFERENCES:
patent: 3499995 (1970-03-01), Clark
patent: 4215244 (1980-07-01), Gutleber
patent: 4641304 (1987-03-01), Raychaudhuri
patent: 4686670 (1987-08-01), Kessels et al.
patent: 4745599 (1988-05-01), Raychaudhuri
patent: 4785450 (1988-11-01), Bolgiano et al.

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