Patent ID: 6047189
Filing Date: 2000-04-04
Classification: H04W

Abstract:
An adaptive method for use in a wireless cellular communication system having a cell station and a plurality of subscriber stations, the method for minimizing interference with any existing connections between the cell station and the subscriber stations by determining an acceptable low power level required for establishing a new connection between a subscriber station and the cell station in the presence of any existing connections, the method comprising:(a) the subscriber station requiring a new connection transmitting a first signal on the uplink traffic channel designated by the cell station at a prescribed power level;(b) the subscriber station listening for a second signal transmitted by the cell station on the downlink traffic channel indicating that the cell station received the first signal from the subscriber station requiring a new connection with acceptable quality, and if not received, incrementing the subscriber station transmitting power level by a prescribed amount until the second signal is received thus indicating that the last used transmitting power level is sufficient;(c) the cell station listening for the first signal transmitted by the subscriber station requiring a new connection and noting the elapsed time between the assignment of the traffic channel to the subscriber station requiring a new connection and the time an acceptable quality first signal was received at the cell station;(d) the cell station determining an acceptably low cell station transmitting power level for use in communicating with the subscriber station requiring a new connection based on the elapsed time between the assignment of the traffic channel to the subscriber station requiring a new connection and the time an acceptable quality first signal was received at the cell station.