Method and apparatus for controlling transmission power while in soft handoff
First Claim
1. A method, comprising:
- generating a first transmission power message for determining a power level of a transmission of a forward link signal between a mobile station and a first base station;
transmitting a redundant version of said forward link signal to said mobile station from a second base station;
generating a second transmission power message for determining a power level of transmission of said redundant version of said forward link signal; and
receiving said first and second transmission power messages, and sending an aligned power control command to said first base station and said second base station, wherein said aligned power control command is for producing correlating patterns of power control adjustments at said first and second base stations for transmissions of said forward link signal from said first base station and said redundant version of said forward link from said second base station to said mobile station.
1 Assignment
0 Petitions
Accused Products
Abstract
Method and apparatus for adjusting the transmission power of base stations in simultaneous communication with a mobile station. The methods described provide for the transmission power of the base stations to be aligned. In the first exemplary embodiment, the transmitters are attached to a separate control unit through communication links. The control unit then derives the most likely command stream and send that to the base stations. In the second exemplary embodiment, the control unit periodically receives the final or average transmit level in a period and an aggregate quality measure for the feedback during a period from each of the transmitters. The control unit determines the aligned power level and transmits a message indicative of the aligned power level to the transmitters.
134 Citations
4 Claims
-
1. A method, comprising:
-
generating a first transmission power message for determining a power level of a transmission of a forward link signal between a mobile station and a first base station;
transmitting a redundant version of said forward link signal to said mobile station from a second base station;
generating a second transmission power message for determining a power level of transmission of said redundant version of said forward link signal; and
receiving said first and second transmission power messages, and sending an aligned power control command to said first base station and said second base station, wherein said aligned power control command is for producing correlating patterns of power control adjustments at said first and second base stations for transmissions of said forward link signal from said first base station and said redundant version of said forward link from said second base station to said mobile station. - View Dependent Claims (2)
-
-
3. An apparatus, comprising:
-
means for generating a first transmission power message for determining a power level of a transmission of a forward link signal between a mobile station and a first base station;
means for transmitting a redundant version of said forward link signal to said mobile station from a second base station;
means for generating a second transmission power message for determining a power level of transmission of said redundant version of said forward link signal; and
means for receiving said first and second transmission power messages, and sending an aligned power control command to said first base station and said second base station, wherein said aligned power control command is for producing correlating patterns of power control adjustments at said first and second base stations for transmissions of said forward link signal from said first base station and said redundant version of said forward link from said second base station to said mobile station. - View Dependent Claims (4)
-
Specification