Power level convergence in a communications system
First Claim
1. A method for adjusting power in a base station, comprising the steps of:
- receiving a power instruction from a mobile station that is engaged in a macro-diversity communication with the base station;
ascertaining a current power of the base station;
determining a power adjustment amount responsive to the power instruction from the mobile station that is engaged in the macro-diversity communication with the base station and the current power of the base station; and
adjusting the current power of the base station based on the power adjustment amount, wherein said step of determining a power adjustment amount responsive to the power instruction and the current power of the base station comprises the steps of;
comparing the current power of the base station to a predetermined threshold; and
setting the power adjustment amount equal to a first amount that is less than a first nominal amount if the power instruction corresponds to an increase command and the current power of the base station is greater than the predetermined threshold;
setting the power adjustment amount equal to a second amount that is greater than a second nominal amount if the power instruction corresponds to an increase command and the current power of the base station is not greater than the predetermined threshold;
setting the power adjustment amount equal to a third amount that is less than a third nominal amount if the power instruction corresponds to a decrease command and the current power of the base station is less than the predetermined threshold;
or setting the power adjustment amount equal to a fourth amount that is greater than a fourth nominal amount if the power instruction corresponds to a decrease command and the current power of the base station is not less than the predetermined threshold.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, systems, and arrangements enable balanced base station transmitter output power levels with respect to a receiving mobile station in a macro-diversity communication by adjusting a base station transmitter output power level responsive to power control command(s) sent by the mobile station and the (current) transmitter output power level of the base station. In a fixed adjustment step embodiment, power level convergence is enabled by adjusting the transmitter output power level of a given base station by a greater amount (e.g., than the nominal amount) when a power control command orders a power adjustment of the transmitter output power level towards a reference level and by adjusting the transmitter output power level by a lesser amount when a power control command orders a power adjustment of the is transmitter output power level away from the reference level. A continuous adjustment step embodiment is also disclosed.
-
Citations
11 Claims
-
1. A method for adjusting power in a base station, comprising the steps of:
-
receiving a power instruction from a mobile station that is engaged in a macro-diversity communication with the base station;
ascertaining a current power of the base station;
determining a power adjustment amount responsive to the power instruction from the mobile station that is engaged in the macro-diversity communication with the base station and the current power of the base station; and
adjusting the current power of the base station based on the power adjustment amount, wherein said step of determining a power adjustment amount responsive to the power instruction and the current power of the base station comprises the steps of;
comparing the current power of the base station to a predetermined threshold; and
setting the power adjustment amount equal to a first amount that is less than a first nominal amount if the power instruction corresponds to an increase command and the current power of the base station is greater than the predetermined threshold;
setting the power adjustment amount equal to a second amount that is greater than a second nominal amount if the power instruction corresponds to an increase command and the current power of the base station is not greater than the predetermined threshold;
setting the power adjustment amount equal to a third amount that is less than a third nominal amount if the power instruction corresponds to a decrease command and the current power of the base station is less than the predetermined threshold;
orsetting the power adjustment amount equal to a fourth amount that is greater than a fourth nominal amount if the power instruction corresponds to a decrease command and the current power of the base station is not less than the predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification