Method of optimizing the transmission of idle beacon messages an

Details Method of optimizing the transmission of idle beacon messages an Method of optimizing the transmission of idle beacon messages an

1991-02-25

1993-08-31

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

Single message via plural carrier wave transmission

455 383, 455 63, 455 671, 455343, H04B 726, H04B 1700

Patent

active

052416917

ABSTRACT:
A time division communications system for radio communication between primary stations and a plurality of secondary stations, having a normal idle beacon message transmitted by the primary station when it has an otherwise idle period. To reduce interference with stations in adjacent areas, and power consumption, during long idle periods the primary station ascertains whether secondary stations which are in range are experiencing sufficiently low interference that the primary station can switch to a low duty cycle link mode. In the low duty cycle mode paging messages are transmitted as required, and low duty link reassurance messages are transmitted at relatively long intervals. If either the primary or secondary stations detect sufficient increase in interference, the system reverts to the normal idle state.

REFERENCES:
patent: 4449248 (1984-05-01), Leslie et al.
patent: 4964121 (1990-10-01), Moore

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