Telecommunications – Transmitter and receiver at separate stations – Single message via plural carrier wave transmission
Patent
1992-01-30
1996-01-09
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
Single message via plural carrier wave transmission
455 561, 455343, H04B 726
Patent
active
054836727
ABSTRACT:
In a communication system, a communication unit may conserve source energy when it is inactive in the following manner. The control channel is partitioned into a predetermined number of windows and a system window which are transmitted on the control channel in a round robin manner. When the communication unit registers with the communication system, it is assigned to a window group. The communication unit then monitors only the system window to determine whether the window group that its been assigned to is also assigned to one of the predetermined number of windows. When the window that has been assigned to the window group is being transmitted on the control channel, the communication unit activates to monitor that window. Once the window is no longer being transmitted, the communication unit deactivates until the system window is being transmitted or the window assigned to the window group is being transmitted.
REFERENCES:
patent: 4398192 (1983-08-01), Moore et al.
patent: 5060296 (1991-10-01), Grube et al.
patent: 5095529 (1992-03-01), Comroe et al.
patent: 5109527 (1992-04-01), Akenberg
patent: 5159593 (1992-10-01), D'Amico et al.
patent: 5175870 (1992-12-01), Mabey et al.
patent: 5241542 (1993-08-01), Natarajan et al.
Crilly Daniel C.
Eisenzopf Reinhard J.
Markison Timothy W.
Motorola Inc.
Vo Nguyen
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