Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1993-11-05
1996-11-26
Coles, Sr., Edward L.
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 58, 379 60, 455 331, 455 332, H04M 1100
Patent
active
055793738
ABSTRACT:
A transmission power control method in a cellular radiotelephone system that includes, within at least one cell site, first and second stations, each having a transmitter and a receiver for a predetermined radio channel, and dynamically adjusts transmission power levels, comprising the steps of forming location groups by dividing radio channels within the cell site around the first station into a plurality of groups which are from lowest group to highest group, measuring, in the first station, levels of signals received from the second station, allotting the second station to a location group corresponding to the measured signal level, assigning an idle traffic channel to the second station by checking traffic channels according to a location group of the second station, determining a normal operation state in case of being within a level range, a power decrease requiring state in case of being over a maximum value of level range, and a power increase requiring state in case of being below a minimum value of level range, by comparing a signal level received from the first station and measured in the second station with the level range received and determined in the first station, decreasing a transmission power of the second station by the determination of the power decrease requiring state to allot the second station to a lower location group and checking traffic channels according to the location group to decrease a transmission power of the first station when there is no idle channel, and increasing a transmission power of the second station by the determination of the power increase requiring state to allot the second station to a higher location group and checking traffic channels according to the location group to increase a transmission power of the first station when there is no idle channel.
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Bushnell Esq. Robert E.
Coles Sr. Edward L.
Samsung Electronics Co,. Ltd.
Stoll Thomas L.
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