Telecommunications network node and methods
First Claim
1. A method of generating, by genetic programming, evolved algorithms for adjusting base station transmission power to control coverage of a cell to assist in providing desired base station operating characteristics, said method comprising:
- generating, using predetermined functions and terminals defined in a functions and terminals list, a plurality of evolved algorithms each of which determine whether, for any particular base station operating conditions, to adjust said base station transmission power;
determining a fitness level indicative of each evolved algorithm'"'"'s ability to adjust base station transmission power to control coverage to achieve said desired base station operating characteristics under expected operating conditions, wherein the determining comprises simulating operation of a base station when using each of said evolved algorithms under said expected operating conditions to generate simulated operating metrics and applying those simulated operating metrics to a fitness function representing said desired base station operating characteristics to determine said fitness level; and
iteratively performing the generating and determining to generate further evolved algorithms using at least one of said evolved algorithms determined to have achieved a particular fitness level.
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Accused Products
Abstract
A telecommunications network node and methods are disclosed. The method is for generating, by genetic programming, evolved algorithms for adjusting base station transmission power to control coverage of a cell to assist in providing desired base station operating characteristics. The method comprises the steps of: generating, using predetermined functions and terminals defined in a functions and terminals list, a plurality of evolved algorithms each of which determine whether, for any particular base station operating conditions, to adjust said base station transmission power; determining a fitness level indicative of each evolved algorithm'"'"'s ability to adjust base station transmission power to control coverage to achieve said desired base station operating characteristics under expected operating conditions; and iteratively performing said steps of generating and determining to generate further evolved algorithms using at least one of said evolved algorithms determined to have achieved a particular fitness level. In this way, it can be seen that algorithms can be assembled and then tested to see how suitable they are at controlling base station power to achieve particular operating characteristics under particular operating conditions. Those algorithms which are determined to be the best at achieving those characteristics under those particular operating conditions may then be used to generate further algorithms which, in turn, are also then assessed. Hence, those individual algorithms which are suited to the operating characteristics and the operating conditions can rapidly be generated thereby avoiding the need to manually design new algorithms which are specialized to particular environments.
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Citations
15 Claims
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1. A method of generating, by genetic programming, evolved algorithms for adjusting base station transmission power to control coverage of a cell to assist in providing desired base station operating characteristics, said method comprising:
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generating, using predetermined functions and terminals defined in a functions and terminals list, a plurality of evolved algorithms each of which determine whether, for any particular base station operating conditions, to adjust said base station transmission power; determining a fitness level indicative of each evolved algorithm'"'"'s ability to adjust base station transmission power to control coverage to achieve said desired base station operating characteristics under expected operating conditions, wherein the determining comprises simulating operation of a base station when using each of said evolved algorithms under said expected operating conditions to generate simulated operating metrics and applying those simulated operating metrics to a fitness function representing said desired base station operating characteristics to determine said fitness level; and iteratively performing the generating and determining to generate further evolved algorithms using at least one of said evolved algorithms determined to have achieved a particular fitness level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of utilizing an evolved algorithm for adjusting base station transmission power to control coverage of a cell to assist in providing desired base station operating characteristics, said method comprising:
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determining base station operating conditions; and applying said base station operating conditions to said evolved algorithm to determine whether to adjust said base station transmission power, wherein said base station operating conditions comprise at least one of a base station load, a coverage overlap and a coverage gap, and determining comprises a corresponding at least one of; determining said base station load by measuring a highest load experienced by a base station over a predetermined period; determining said coverage overlap from received measurement reports indicating transmissions received from other base stations having a power greater than a predetermined threshold; and determining said coverage gap from information received indicative of at least one of numbers of handovers and numbers of dropped calls due to lack of coverage which have occurred.
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14. A network node operable to generate, by genetic programming, evolved algorithms for adjusting base station transmission power to control coverage of a cell to assist in providing desired base station operating characteristics, said network node comprising:
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generating logic operable to generate, using predetermined functions and terminals defined in a functions and terminals list, a plurality of evolved algorithms each of which determine whether, for any particular base station operating conditions, to adjust said base station transmission power; determining logic operable to determine a fitness level indicative of each evolved algorithm'"'"'s ability to adjust base station transmission power to control coverage to achieve said desired base station operating characteristics under expected operating conditions, wherein the determining logic simulates operation of a base station when using each of the evolved algorithms under the expected operating conditions to generate simulated operating metrics and applies the simulated operating metrics to a fitness function representing the desired base station operating characteristics to determine the fitness level; and control logic operable to control said generating logic and determining logic to iteratively generate a further plurality of evolved algorithms using at least one of said evolved algorithms determined to have achieved a particular fitness level. - View Dependent Claims (15)
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Specification