System and method for dynamic channel allocaton
First Claim
1. A method for dynamic channel allocation in a land mobile radio communications system, the method comprising:
- determining one or more preference indicators for each of a plurality of channels for use in allocating the plurality of channels, wherein each of the plurality of channels is associated with one or more repeaters of a plurality of repeaters located at a plurality of sites of the land mobile radio communications system;
determining a priority ranking for use in allocating each of the plurality of channels based at least in part on the one or more preference indicators;
receiving a first channel allocation request to allocate one of the plurality of channels as a control channel;
allocating a first one of the plurality of channels as the control channel in response to the first channel allocation request by selecting the first one of the plurality of channels based on a then highest ranked channel of the priority ranking used in allocating each of the plurality of channels;
receiving a second channel allocation request to allocate one of the plurality of channels as a traffic channel while the first one of the plurality of channels is allocated as the control channel; and
allocating a second one of the plurality of channels as the traffic channel in response to the second channel allocation request by selecting the second one of the plurality of channels based on a currently highest ranked channel of the priority ranking used in allocating each of the plurality of channels.
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Abstract
An exemplary system and method for dynamic channel allocation in an LMR system includes using one or more preference indicators to dynamically determine a channel allocation priority to be used for channel allocation when channel allocation requests are received. The preference indicators may include a channel failure indicator (e.g. a channel health indicator based on repeater failures), a channel priority indicator, a radio frequency interference indicator, a high reflected power indicator, an excessive current drain indicator, a loss of backbone communications indicator, and a channel usage indicator. If more than one preference indicator is used, the channel priority ranking may be determined using any of a variety of weightings and prioritizations of the various preference indicators to dynamically generate the channel allocation priority. The dynamic channel allocation system may include one or more site controllers, servers, and/or one or more processors configured to implement the method of dynamic channel allocation.
82 Citations
41 Claims
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1. A method for dynamic channel allocation in a land mobile radio communications system, the method comprising:
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determining one or more preference indicators for each of a plurality of channels for use in allocating the plurality of channels, wherein each of the plurality of channels is associated with one or more repeaters of a plurality of repeaters located at a plurality of sites of the land mobile radio communications system; determining a priority ranking for use in allocating each of the plurality of channels based at least in part on the one or more preference indicators; receiving a first channel allocation request to allocate one of the plurality of channels as a control channel; allocating a first one of the plurality of channels as the control channel in response to the first channel allocation request by selecting the first one of the plurality of channels based on a then highest ranked channel of the priority ranking used in allocating each of the plurality of channels; receiving a second channel allocation request to allocate one of the plurality of channels as a traffic channel while the first one of the plurality of channels is allocated as the control channel; and allocating a second one of the plurality of channels as the traffic channel in response to the second channel allocation request by selecting the second one of the plurality of channels based on a currently highest ranked channel of the priority ranking used in allocating each of the plurality of channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for dynamic channel allocation in a land mobile radio communications system, the method comprising:
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determining a first preference indicator for each of a plurality of channels for use in allocating the plurality of channels, wherein each of the plurality of channels is associated with one or more repeaters located at a plurality of sites of the land mobile radio communications system, and wherein the first preference indicator includes a channel failure indicator for each of the plurality of channels that corresponds to a current operational state of the one or more repeaters associated with each such channel; determining a priority ranking for use in allocating each of the plurality of channels based at least in part on the first preference indicator that includes the channel failure indicator for each of the plurality of channels; receiving a channel allocation request; and allocating a channel in response to the channel allocation request by selecting an available channel based on the priority ranking for allocating each of the plurality of channels. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A land mobile radio communications system with dynamic channel allocation to provide mobile communications between at least two of a plurality of radio subscriber units, the land mobile radio communications system comprising:
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a plurality of sites positioned at separate locations in data communication with one another using a data network, and wherein each of the plurality of sites includes a plurality of repeaters configured to provide a plurality of channels for communications between at least two of the plurality of radio subscriber units; and one or more processors configured to provide dynamic channel allocation, the one or more processors configured to; determine one or more preference indicators for each of the plurality of channels for use in allocating the plurality of channels, wherein each of the plurality of channels is associated with one or more repeaters of the plurality of repeaters located at the plurality of sites of the land mobile radio communications system; determine a priority ranking for use in allocating each of the plurality of channels based at least in part on the one or more preference indicators; receive a first channel allocation request to allocate one of the plurality of channels as a control channel; allocate a first one of the plurality of channels as the control channel in response to the first channel allocation request by selecting the first one of the plurality of channels based on the highest ranked channel of the priority ranking for use in allocating each of the plurality of channels; receive a second channel allocation request to allocate one of the plurality of channels as a traffic channel while the first one of the plurality of channels is allocated as the control channel; and allocate a second one of the plurality of channels as the traffic channel in response to the second channel allocation request by selecting the second one of the plurality of channels based on the then highest ranked channel of the priority ranking for use in allocating each of the plurality of channels. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A dynamic channel allocation system configured for use in a land mobile radio communications system that provides mobile communications between at least two of a plurality of radio subscriber units, the land mobile radio communications system including a plurality of sites in communication with one another and positioned at separate locations, and wherein each of the plurality of sites includes a plurality of repeaters configured to provide a plurality of channels for communication between the at least two of the plurality of radio subscriber units, the dynamic channel allocation system comprises:
one or more processors configured to provide dynamic channel allocation, the one or more processors configured to; determine one or more preference indicators for each of the plurality of channels for use in allocating the plurality of channels, wherein each of the plurality of channels is associated with one or more repeaters of the plurality of repeaters located at the plurality of sites of the land mobile radio communications system; determine a priority ranking for use in allocating each of the plurality of channels based at least in part on the one or more preference indicators; receive a first channel allocation request to allocate one of the plurality of channels as a control channel; allocate a first one of the plurality of channels as the control channel in response to the first channel allocation request by selecting the first one of the plurality of channels based on the highest ranked channel of the priority ranking for use in allocating each of the plurality of channels; receive a second channel allocation request to allocate one of the plurality of channels as a traffic channel while the first one of the plurality of channels is allocated as the control channel; and allocate a second one of the plurality of channels as the traffic channel in response to the second channel allocation request by selecting the second one of the plurality of channels based on the then highest ranked channel of the priority ranking for use in allocating each of the plurality of channels. - View Dependent Claims (40, 41)
Specification