Capacity optimization sub-system for distributed antenna system
First Claim
1. A capacity optimization sub-system for distributing capacity in a distributed antenna system, the capacity optimization sub-system comprising:
- a switch matrix having a plurality of variable attenuators and a plurality of switches, the switch matrix configured to receive a plurality of sectors from a plurality of base stations and to provide the plurality of sectors to a plurality of coverage zones, and being communicatively coupled to a plurality of remote antenna units providing service to the plurality of coverage zones; and
a controller communicatively coupled to the switch matrix, the controller configured to;
determine that a number of wireless devices in one or more of the plurality of coverage zones is outside a specified range of threshold traffic levels, andin response to determining that the number of wireless devices is outside the specified range of threshold traffic levels, configure one or more of the plurality of variable attenuators and one or more corresponding switches to redistribute capacity among the plurality of coverage zones.
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Accused Products
Abstract
Certain aspects are directed to a capacity optimization sub-system for a distributed antenna system. The capacity optimization sub-system includes a switch matrix and a controller. The switch matrix includes variable attenuators and switches. The switch matrix can receive sectors from base stations. The switch matrix can provide the sectors to coverage zones. The controller can communicate with the switch matrix. The controller can determine that a number of wireless devices in one or more of the coverage zones is outside a specified range of threshold traffic levels. In response to determining that the number of wireless devices is outside the specified range of threshold traffic levels, the controller can configure one or more of the variable attenuators and corresponding switches to redistribute capacity among the coverage zones by, for example, increasing and/or decreasing capacity in one or more of the coverage zones.
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Citations
20 Claims
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1. A capacity optimization sub-system for distributing capacity in a distributed antenna system, the capacity optimization sub-system comprising:
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a switch matrix having a plurality of variable attenuators and a plurality of switches, the switch matrix configured to receive a plurality of sectors from a plurality of base stations and to provide the plurality of sectors to a plurality of coverage zones, and being communicatively coupled to a plurality of remote antenna units providing service to the plurality of coverage zones; and a controller communicatively coupled to the switch matrix, the controller configured to; determine that a number of wireless devices in one or more of the plurality of coverage zones is outside a specified range of threshold traffic levels, and in response to determining that the number of wireless devices is outside the specified range of threshold traffic levels, configure one or more of the plurality of variable attenuators and one or more corresponding switches to redistribute capacity among the plurality of coverage zones. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A distributed antenna system comprising:
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a plurality of remote antenna units configured to provide service to a plurality of coverage zones, wherein at least one remote antenna unit in each coverage zone comprises a signal detection device; and a capacity optimization sub-system comprising; a switch matrix having a plurality of variable attenuators and a plurality of switches, the switch matrix configured to receive a plurality of sectors from a plurality of base stations and to provide the plurality of sectors to the plurality of coverage zones, and being communicatively coupled to the plurality of remote antenna units providing service to the plurality of coverage zones; and a controller communicatively coupled to the switch matrix and to the plurality of remote antenna units, the controller configured to; determine, based on data received from each signal detection device describing a traffic level in a respective coverage zone, cumulative traffic levels in the plurality of coverage zones, in response to determining that the cumulative traffic levels in a first set of coverage zones of the plurality of coverage zones is below a low threshold traffic level, configure one or more of the plurality of variable attenuators and one or more corresponding switches to decrease capacity in the first set of coverage zones, and in response to determining that the cumulative traffic levels in a second set of coverage zones of the plurality of coverage zones is above a high threshold traffic level, configure one or more of the plurality of variable attenuators and one or more corresponding switches to increase capacity in the second set of coverage zones. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method for optimizing capacity in a distributed antenna system, the method comprising:
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determining, by a processor, that a number of wireless devices in one or more coverage zones receiving a plurality of sectors from a plurality of base stations is below a threshold corresponding to a low traffic level; and in response to determining that the number of wireless devices is below the threshold corresponding to the low traffic level, configuring, by the processor, one or more variable attenuators and one or more corresponding switches of a switch matrix being operatively coupled to a plurality of remote antenna units providing service to the one or more coverage zones of the distributed antenna system to decrease capacity in the one or more coverage zones, wherein decreasing capacity comprises attenuating signals from a first source of capacity in at least one coverage zone at a rate sufficient to induce one or more wireless devices in the at least one coverage zone to switch from the first source of capacity to a second source of capacity; determining, by the processor, that the number of wireless devices in the one or more coverage zones receiving the plurality of sectors exceeds a threshold corresponding to a high traffic level; and in response to determining that the number of wireless devices exceeds the threshold corresponding to the high traffic level, configuring, by the processor, the one or more variable attenuators and the one or more corresponding switches of the switch matrix of the distributed antenna system to increase capacity in the one or more coverage zones. - View Dependent Claims (17, 18, 19, 20)
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Specification