Telecommunications – Transmitter and receiver at separate stations
Patent
1993-06-08
1995-03-07
Urban, Edward F.
Telecommunications
Transmitter and receiver at separate stations
455 342, 455 542, 455 561, 379 59, H04Q 700
Patent
active
053966481
ABSTRACT:
A method and apparatus whereby a communication unit (10) transmits a communication channel request and the nearest base site (12) makes the communication channel grant or allocation. A base site receives the channel request signal, measures the received signal strength (RSSI) level of the received signal, and if that level is above a threshold level, a communication channel is allocated to the requesting communication unit, thus establishing a communication link. If the channel request signal does not have an RSSI level above the threshold, the base site delays the grant of a communication channel for a period inversely proportional to the measured RSSI level to allow other base sites the opportunity to grant a communication channel to the requesting communication unit. If the base site determines that another base site has granted a communication channel to the requesting communication unit, the allocation process is stopped, and the base site continues scanning for channel request signals.
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CT2 Common Air Interface Version 1.1, Jun. 30, 1991 "Common air interface specification to be used for the interworking between cordless telephone apparatus in the frequency band 864.1 MHz to 868.1 MHz, including public access services" European Telecommunications Standards Institute, Valbonne Cedex France.
D'Amico Thomas V.
Patsiokas Stelios J.
Pombo Raul A.
Suter Charles D.
Hernandez Pedro P.
Motorola Inc.
Urban Edward F.
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