Method of power control and cell site selection based upon path gain and interference level
First Claim
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1. A method of selecting an operating parameter for a device in a cellular communication system, the cellular communication system comprising one or more cell sites, each cell site having an associated interference level, the method comprising the steps of:
- determining, at the device, said operating parameter as a function of the interference level at each cell site in the cellular communications system and of the path gain between the device and each cell site, wherein said operating parameter is a selection of a particular one of the cell sites said device is to be assigned for communication, dividing the interference level at each cell site by the path gain between the respective cell site and the device;
determining which cell site corresponds to a minimum value in the dividing step; and
selecting a cell site corresponding to said minimum value as said one of said cell sites the device is to be assigned for communication.
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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.
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Citations
12 Claims
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1. A method of selecting an operating parameter for a device in a cellular communication system, the cellular communication system comprising one or more cell sites, each cell site having an associated interference level, the method comprising the steps of:
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determining, at the device, said operating parameter as a function of the interference level at each cell site in the cellular communications system and of the path gain between the device and each cell site, wherein said operating parameter is a selection of a particular one of the cell sites said device is to be assigned for communication, dividing the interference level at each cell site by the path gain between the respective cell site and the device;
determining which cell site corresponds to a minimum value in the dividing step; and
selecting a cell site corresponding to said minimum value as said one of said cell sites the device is to be assigned for communication. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for selecting an operating parameter for a device in a cellular communication system, the cellular communication system comprising one or more cell sites, each cell site having an associated interference level, the apparatus comprising:
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means for transmitting signals from the device to the cells and for receiving signals at the device from said cell sites; and
means for determining at the device said operating parameter as a function of the interference level at each cell site in the cellular communications system and of the path gain between the device and each cell site, wherein said operating parameter is a selection of a particular one of the cell sites to which the device is assigned for communication, and wherein said means for selecting selects said particular one of said cell sites by dividing the interference level at each cell site by the path gain between the respective cell site and the device and determines which cell site corresponds to a minimum value of the division, the cell site corresponding to the minimum value being the one of said cell sites the device is to be assigned for communication. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification