Sleep mode and contention resolution within a common channel med

Details Sleep mode and contention resolution within a common channel med Sleep mode and contention resolution within a common channel med

1992-03-20

1995-08-08

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 858, 34082508, 455 383, 455343, H04J 316

Patent

active

054405602

ABSTRACT:
A method of sleep mode and contention resolution provides management of a sleep mode in stations and backup for resolution of contention on request for service messages. This reduces the possibility of excessively delayed access to infrastructure services by providing a backup non-contending POLL for service REQUESTs which are invoked at the Access-point Hub Controller upon indication of possible contention. A fast POLL of Stations registered to that Access-point is made in the following available time with a possibility of carry-over to the next access opportunity. The length of the POLL is minimized by addressing only "awake" Stations and omitting those in sleep mode. A slow POLL is used to transfer Stations in and out of sleep mode, and for other purposes.

REFERENCES:
patent: 4577315 (1986-03-01), Otsuku
patent: 4679244 (1987-07-01), Kawasaki et al.
patent: 4736461 (1988-04-01), Kawasaki et al.
patent: 5061922 (1991-10-01), Nishijima et al.
patent: 5241542 (1993-08-01), Natarajan et al.

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