Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1995-12-13
1997-11-11
Kizou, Hassan
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
455 331, 455 541, 455 671, H04B 726, H04J 1300
Patent
active
056871716
ABSTRACT:
A device and method for allocating channels from a base station to a mobile station run with a CDMA Cellular System that includes a first step for measuring the strength of a signal received, a second step for calculating the margin allowed for signal strength by subtracting the size of a signal received, measured in the first step from the total interference allowed, a third step for evaluating whether the margin calculated in the previous step has not been exceeded upon receiving a new radio channel request from a mobile station, and a fourth step for allocating a radio channel to a requesting mobile station when the evaluation result shows that the required power is less than the margin. By utilizing the present invention to allocate a radio channel in accordance with the strength of a signal received by the receiving unit of the Base Station, the utilization of the radio resources of a CDMA System can be maximized and they can be easily used, and as a result, economic CDMA system services can be ensured.
REFERENCES:
CDMA Network Engineering Handbook, Draft Version X1; pp. 4-1 -4-20; Chapter 4.
Ganesh, et al.: "Traffic Capacity of Cellular Packet CDMA for Varying Cell Size and Propagation Scenarios"; pp. 805-809; IEEE Journal 1994.
Liu, et al.: "Sir-Based Call Admission Control for DS-CDMA Cellular Systems" pp. 638-644; IEEE Journal of Selected Areas in Communications, vol. 12, Nov. 4, May 1994.
Lee Hun
Shin Sung-Moon
Electronics and Telecommunications Research Institute
Kizou Hassan
LandOfFree
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