Methods and techniques in channel assignment in a cellular network
First Claim
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1. A method for associating frequencies with sectors in a cellular network, the method comprising:
- receiving requests for associating the frequencies with each of the sectors in the cellular network, each request specifying a requested number of frequencies to be associated with a sector,providing frequency selection criteria,providing sector selection criteria, the sector selection criteria including a threshold representing a minimum fraction of a request that must be fulfilled,based on the sector selection criteria and the frequency selection criteria, associating the frequencies with the sectors to fulfill the requests,determining whether all of the requests can be fulfilled based on the sector selection criteria and the frequency selection criteria,based on all of the requests not being fulfilled, modifying at least one of the requests to specify a different number of frequencies to be associated with at least one sector, the different number being less than the requested number but not less than the minimum fraction of the requested number, anditeratively returning to associating the frequencies with the sectors to fulfill the requests.
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Abstract
A cellular network configuration tool is described that performs frequency assignments for use in a cellular network. The channels are assigned in accordance with input configuration data such as a channel separation matrix, geographic data, and requested channel assignments for each sector included in the cellular network being configured. The configuration is performed in accordance with predetermined constraints and criteria and quality of service input. The tool uses frequency assignment techniques to perform the channel assignments in accordance with varying constraints and criteria.
24 Citations
18 Claims
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1. A method for associating frequencies with sectors in a cellular network, the method comprising:
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receiving requests for associating the frequencies with each of the sectors in the cellular network, each request specifying a requested number of frequencies to be associated with a sector, providing frequency selection criteria, providing sector selection criteria, the sector selection criteria including a threshold representing a minimum fraction of a request that must be fulfilled, based on the sector selection criteria and the frequency selection criteria, associating the frequencies with the sectors to fulfill the requests, determining whether all of the requests can be fulfilled based on the sector selection criteria and the frequency selection criteria, based on all of the requests not being fulfilled, modifying at least one of the requests to specify a different number of frequencies to be associated with at least one sector, the different number being less than the requested number but not less than the minimum fraction of the requested number, and iteratively returning to associating the frequencies with the sectors to fulfill the requests. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for associating frequencies with sectors in a cellular network, the method comprising:
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receiving requests for associating the frequencies with each of the sectors in the cellular network, each request specifying a requested number of frequencies to be associated with a sector, providing frequency selection criteria, providing sector selection criteria, the sector selection criteria including a threshold representing a maximum fraction of a request that may not be fulfilled, based on the sector selection criteria and the frequency selection criteria, associating the frequencies with the sectors to fulfill the requests, determining whether all of the requests can be fulfilled based on the sector selection criteria and the frequency selection criteria, based on all of the requests not being fulfilled, modifying at least one of the requests to specify a different number of frequencies to be associated with at least one sector, the different number being less than the requested number but not less than the difference between the requested number and the maximum fraction of the requested number, and iteratively returning to associating the frequencies with the sectors to fulfill the requests. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A processor-readable medium including instructions to cause a processor to:
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receive requests for associating frequencies with each sector in a cellular network, each request specifying a requested number of frequencies to be associated with a sector, based on sector selection criteria including a threshold representing a minimum fraction of a request that must be fulfilled and frequency selection criteria, associate the frequencies with the sectors to fulfill the requests, determine whether all of the requests can be fulfilled based on the sector selection criteria and the frequency selection criteria, based on all of the requests not being fulfilled, modify at least one of the requests to specify a different number of frequencies to be associated with at least one sector, the different number being less than the requested number but not less than the minimum fraction of the requested number, and iteratively return to associating the frequencies with the sectors to fulfill the requests. - View Dependent Claims (14, 15)
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16. A processor-readable medium including instructions to cause a processor to:
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receive requests for associating frequencies with each sector in a cellular network, each request specifying a requested number of frequencies to be associated with a sector, based on sector selection criteria including a threshold representing a maximum fraction of a request that may not be fulfilled and frequency selection criteria, associate the frequencies with the sectors to fulfill the requests, determine whether all of the requests can be fulfilled based on the sector selection criteria and the frequency selection criteria, based on all of the requests not being fulfilled, modify at least one of the requests to specify a different number of frequencies to be associated with at least one sector, the different number being less than the requested number but not less than the difference between the requested number and the maximum fraction of the requested number, and iteratively return to associating the frequencies with the sectors to fulfill the requests. - View Dependent Claims (17, 18)
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Specification