Method and apparatus for determining power required for data transmission in communication systems
First Claim
1. A method of communication, comprising:
- determining at a source of data a quality metric of a link over which data is to be transmitted;
determining a desired data rate for transmission of the data from a plurality of transmission powers;
modifying the quality metric by a quality metric margin based at least in part on an outage event; and
determining a power required for transmission of data in accordance with the modified quality metric and the desired data rate.
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Abstract
Methods and apparatus for estimating a transmission power required for data transmission in a communication system are disclosed. A terminal determines a quality metric of a communication link, over which data are to be transmitted, and modifies the determined quality metric by a quality metric margin. The terminal then estimates the maximum rate of data in accordance with the modified quality metric. Alternatively, the terminal estimates transmission power required for data transmission with a data rate in accordance with the modified quality metric. The quality metric margin may be a pre-determined or dynamically adjusted. The terminal dynamically adjusts the quality metric margin in accordance with a result of comparison of a transmit power corresponding to the estimated maximum rate of data with an actual transmit power used to transmit the data.
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Citations
29 Claims
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1. A method of communication, comprising:
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determining at a source of data a quality metric of a link over which data is to be transmitted; determining a desired data rate for transmission of the data from a plurality of transmission powers; modifying the quality metric by a quality metric margin based at least in part on an outage event; and determining a power required for transmission of data in accordance with the modified quality metric and the desired data rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for communication, comprising:
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means for determining at a source of data a quality metric of a link over which data is to be transmitted; means for determining a desired data rate for transmission of the data from a plurality of transmission powers; means for modifying the quality metric by a quality metric margin based at least in part on an outage event; and means for determining a power required for transmission of data in accordance with the modified quality metric and the desired data rate. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An apparatus for communication, comprising:
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an estimator configured to determine at a source of data a quality metric of a link over which data is to be transmitted; a combiner communicatively coupled to said estimator and configured to modify the quality metric by a quality metric margin, wherein the quality metric margin is based at least in part on an outage event; and a processing block communicatively coupled to said combiner and configured to determine a desired data rate for transmission of the data from a plurality of transmission powers and to determine power required for transmission of data in accordance with said modified quality metric and the desired data rate. - View Dependent Claims (24, 25, 26, 27, 28)
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29. A computer-readable storage medium including executable instructions that cause a computer to:
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determine at a source of data a quality metric of a link over which data is to be transmitted; determine a desired data rate for transmission of the data from a plurality of transmission powers; modify the quality metric by a quality metric margin based at least in part on an outage event; and determine power required for transmission of a data in accordance with the modified quality metric and the desired data rate.
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Specification