SYSTEM AND METHOD FOR DYNAMIC CHANNEL ALLOCATON

摘要

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.

主权项

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.