| 摘要 |
A method of assigning initial uplink and downlink power levels for a transaction of a data package between a mobile station (12) and a base station (11) in a radio telecommunications network. A historical database (13) of signal strength measurements, interference measurements, and uplink and downlink power level settings in the network is maintained. To set downlink power, an uplink signal strength (16) of an initial access signal (15) sent from the mobile station to the base station is measured at the base station. The measured uplink signal strength (16) is sent to the historical database where it is correlated with an associated downlink power level setting. The correlated downlink power level setting (17) is sent to the base station where it is utilized as the initial downlink power level setting for a first transmission (19) from the base station to the mobile station. To set uplink power, the signal strength (42) of an initial packet channel request (41) on the control channel is sent to the historical database along with an interference measurement (43) on the packet date channel. An associated mobile station uplink power level setting (44) is retrieved from the database and sent to the mobile station where it is utilized for the first data transmission (46). A closed loop power control method may be utilized to adjust either the uplink or the downlink power level to an optimum level. |
