Wireless communication system

Telecommunications – Transmitter – Power control – power supply – or bias voltage supply

Reexamination Certificate

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Details

C455S343100, C370S311000

Reexamination Certificate

active

10550234

ABSTRACT:
A sleep length calculation unit410of a terminal calculates a sleep length based on what is contained in a PLCP header of a frame, and sets the calculated length on a timer430. An address detection unit420of the terminal detects a destination address from inside a MAC header of the frame to see if this frame is destined for another terminal. If the frame is found destined for another terminal, then this terminal gives a power supply unit180an instruction to start sleeping while causing the timer430to start counting time. When the sleep length is found to have elapsed on the timer430, the terminal gives the power supply unit180an instruction to stop sleeping. If what is contained in the PLCP header or MAC header is not deemed reliable, then a sleep inhibit determination unit440inhibits the power supply unit180from going to sleep. The structure allows a wireless communication system to effect a transition into power-saving mode upon acquiring necessary information, without making changes to existing standards.

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patent: 5559804 (1996-09-01), Amada et al.
patent: 5740517 (1998-04-01), Aoshima
patent: 5805990 (1998-09-01), Ohki
patent: 7020102 (2006-03-01), Tuomainen et al.
patent: 2004/0190467 (2004-09-01), Liu et al.
patent: 6-311160 (1994-11-01), None
patent: 8-181702 (1996-07-01), None
patent: 2000-261462 (2000-09-01), None
patent: 2002-198974 (2002-07-01), None

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