Wireless systems frequency reuse planning using simulated annealing
First Claim
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1. A method for generating a frequency reuse plan for use in a radio communications system, the method comprising:
- calculating a metric based upon an initial frequency reuse plan that specifies frequency assignments to a plurality of sectors, each of the plurality of sectors being associated with a signal level value;
ordering the plurality of sectors based upon the corresponding signal level values; and
iteratively modifying the frequency assignments to improve the metric according to the order of the plurality of sectors.
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Abstract
An approach is provided for generating a frequency reuse plan for use in a radio communications system. A metric is calculated metric based upon an initial frequency reuse plan that specifies frequency assignments to a plurality of sectors. Each of the plurality of sectors is associated with a signal level value. The plurality of sectors are ordered based upon the corresponding signal level values. The frequency assignments are iteratively modifying to improve the metric according to the order of the plurality of sectors. The present invention has application to radio communications systems.
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Citations
30 Claims
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1. A method for generating a frequency reuse plan for use in a radio communications system, the method comprising:
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calculating a metric based upon an initial frequency reuse plan that specifies frequency assignments to a plurality of sectors, each of the plurality of sectors being associated with a signal level value;
ordering the plurality of sectors based upon the corresponding signal level values; and
iteratively modifying the frequency assignments to improve the metric according to the order of the plurality of sectors. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A computing system for generating a frequency reuse plan for use in a radio network, the computing system comprising:
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means for calculating a metric based upon an initial frequency reuse plan that specifies frequency assignments to a plurality of sectors, each of the plurality of sectors being associated with a signal level value;
means for ordering the plurality of sectors based upon the corresponding signal level values; and
means for iteratively modifying the frequency assignments to improve the metric according to the order of the plurality of sectors. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A computer-readable medium carrying one or more sequences of one or more instructions for generating a frequency reuse plan for use in a radio communications system, when executed by one or more processors, cause the one or more processors to perform the steps of:
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calculating a metric based upon an initial frequency reuse plan that specifies frequency assignments to a plurality of sectors, each of the plurality of sectors being associated with a signal level value;
ordering the plurality of sectors based upon the corresponding signal level values; and
iteratively modifying the frequency assignments to improve the metric according to the order of the plurality of sectors. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A signal for use in a radio communications system, the signal comprising:
a frequency assigned according to a frequency reuse plan, wherein the frequency reuse plan is generated based upon a simulated annealing process that includes, calculating a metric based upon an initial frequency reuse plan that specifies frequency assignments to a plurality of sectors, each of the plurality of sectors being associated with a signal level value;
ordering the plurality of sectors based upon the corresponding signal level values; and
iteratively modifying the frequency assignments to improve the metric according to the order of the plurality of sectors. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A radio communications system comprising:
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a first terminal operating at a first frequency that is based upon a frequency reuse plan; and
a second terminal operating at a second frequency that is based upon the frequency reuse plan, wherein the frequency reuse plan is generated by calculating a metric based upon an initial frequency reuse plan that specifies frequency assignments that include the first frequency and the second frequency, the metric being optimized according to a simulated annealing process. - View Dependent Claims (26, 27)
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28. A terminal for communicating in a radio communications system, the terminal comprising:
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a transceiver configured to receive a signal having a predetermined frequency that is based upon a frequency reuse plan; and
a modulator operating at the predetermined frequency, wherein the frequency reuse plan is generated by calculating a metric based upon an initial frequency reuse plan that specifies frequency assignments that include the predetermined frequency, the metric being optimized according to a simulated annealing process. - View Dependent Claims (29, 30)
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Specification