Method of power control and cell site selection
First Claim
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1. A method of assigning a device to a particular cell site in a plurality of cell sites in a spread spectrum cellular communications system, each cell site having an associated interference level, the method comprising the steps of:
- receiving at the device a signal indicating the interference level associated with each cell site in the plurality of cell sites in the spread spectrum cellular communications system;
determining a path gain from the device to each cell site in the spread spectrum cellular communications system, andassigning the device to the particular cell site in the spread spectrum cellular communications system as a function of the interference level and the path gain.
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Abstract
A method for use in a cellular communication system is disclosed which dynamically assigns a communication device to a cell site and which dynamically assigns transmit power levels to the communication device. The method is based on measurements of interference levels at cell sites and on the path gain between the communication device and the cell site.
79 Citations
17 Claims
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1. A method of assigning a device to a particular cell site in a plurality of cell sites in a spread spectrum cellular communications system, each cell site having an associated interference level, the method comprising the steps of:
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receiving at the device a signal indicating the interference level associated with each cell site in the plurality of cell sites in the spread spectrum cellular communications system; determining a path gain from the device to each cell site in the spread spectrum cellular communications system, and assigning the device to the particular cell site in the spread spectrum cellular communications system as a function of the interference level and the path gain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of assigning a transmit power level to a device for transmitting to an assigned cell site in a spread spectrum cellular communications system, the assigned cell site having an interference level, the device having an associated quality of service requirement, the method comprising the steps of:
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receiving from the assigned cell site the interference level at the assigned cell site in the spread spectrum cellular communications system, determining the path gain from the device to the assigned cell site in the spread spectrum cellular communications system, and assigning the transmitted power level as a function of the interference level, quality of service requirement and path gain. - View Dependent Claims (12, 13, 14, 15)
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16. A method of selecting, for a device having an associated quality of service requirement, a particular cell site in a plurality of cell sites in a spread spectrum cellular communications system, each cell site in the spread spectrum cellular communications system having an associated interference level, and of selecting a transmit power for transmitting to the particular cell site comprising the steps of:
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receiving at the device a signal indicating the interference level associated with each cell site in the spread spectrum cellular communications system, determining the path gain from the device to each cell site in the spread spectrum cellular communications system, selecting the particular cell site as a function of the interference level associated with the particular cell site and the path gain, and selecting the transmit power to the particular cell site as a function of the interference level associated with the particular cell site, quality of service required and the path gain. - View Dependent Claims (17)
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Specification