Power allocation in a wireless system with base stations having antenna arrays
AssigneeAlcatel Lucent
InventorsAlexei Ashikhmin, Thomas Marzetta
Life of this patent
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Abstract
Provided is a method and apparatus for allocating transmit power in a wireless network. The method includes determining powers at which a base station transmits downlink signals to each active user equipment associated with the base station such that each of the downlink signals is associated with a different active user and the base station is permitted to transmit downlink signals with different powers to the associated active user equipments. The method further includes transmitting the associated downlink signals, by the base station, to the active user equipments at the determined powers.
Claims20
A method for allocating transmit power in a wireless network, the method comprising:
- assigning a transmit power to each active user equipment associated with a base station;
- calculating signal to interference ratios for each of the active user equipments associated with the base station;
- determining, based on the calculated signal to interference ratios, powers at which the base station transmits downlink signals to each active user equipment associated with the base station such that each of the downlink signals is associated with a different active user and the base station is permitted to transmit downlink signals with different powers to the associated active user equipments;
- and
- transmitting the associated downlink signals, by the base station, to the active user equipments at the determined powers.
A controller, comprising:
- a processor configured to,
- assign a transmit power to each active user equipment associated with a base station,
- calculate signal to interference ratios for each of the active user equipments associated with the base station, and
- determine, based on the calculated signal to interference ratios, powers at which the base station transmits downlink signals to each active user equipment associated with the base station such that each of the downlink signals is associated with a different active user and the base station is permitted to transmit downlink signals with different powers to the associated active user equipments.
Dependencies are inferred from the claim text.