Distributed land mobile radio architectures
A system for providing communication in a distributed land mobile radio (LMR) system architecture. In some embodiments, the system includes a first controller associated with an LMR site. The first controller may be configured to control communication, via a communication channel, of a plurality of LMRs. In some embodiments, the system further includes a first repeater of a plurality of repeaters associated with the LMR site. The first repeater may include at least an active mode. The first repeater may be in the active mode to initiate a simulcast controller operation using the communication channel of the plurality of repeaters.
1. A system for providing communication in a distributed land mobile radio (LMR) system architecture, the system comprising:
a first voter comparator configured to receive at least a first signal from a device;
a second voter comparator configured to receive at least a second signal from the device; and
a third voter comparator configured to receive at least a third signal from the device,
wherein an active voter comparator of one of the first voter comparator, the second voter comparator, or the third voter comparator receives a plurality of signals comprising the first signal, the second signal, and the third signal, compares signal strengths of the plurality of signals, and transmits a signal of the plurality of signals that has greatest signal strength,
wherein the system comprises two standby voter comparators comprising two of the first voter comparator, the second voter comparator, or the third voter comparator, the two standby voter comparators excluding the active voter comparator, and
wherein one of the two standby voter comparators is configured to switch to an active mode from a standby mode upon failure of the active voter comparator operating.
2. The system of claim 1 , wherein the plurality of signals are radio frequency signals.
3. The system of claim 1 , wherein at least two of the first voter comparator, the second voter comparator, or the third voter comparator communicate to determine which of the first voter comparator, the second voter comparator, or the third voter comparator is the active voter comparator.
4. The system of claim 1 , further comprising a network management system configured to select which one of the first voter comparator, the second voter comparator, or the third voter comparator is the active voter comparator.
5. A system for providing communication in a distributed land mobile radio (LMR) system architecture that includes a plurality of devices configured to communicate with one another via the system, the system comprising:
a first controller configured to selectively control communication between the plurality of devices;
a second controller configured to selectively control communication between the plurality of devices; and
a third controller configured to selectively control communication between the plurality of devices,
wherein an active controller of one of the first controller, the second controller, or the third controller provides communication in the LMR system architecture,
wherein providing communication in the LMR system architecture comprises controlling transmission of a plurality of signals between the plurality of devices,
wherein the system comprises two standby controllers comprising two of the first controller, the second controller, or the third controller, the two standby controllers excluding the active controller, and
wherein one of the two standby controllers is configured to switch to an active mode from a standby mode upon failure of the active controller operating.
6. The system of claim 5 , wherein at least one of the plurality of devices comprises one of a LMR, a repeater, a radio receiver, a radio tower, a fire truck, an ambulance, a police vehicle, or an emergency vehicle.
7. The system of claim 5 , wherein at least one of the first controller or the second controller is configured to, prior to failure, generate a communication channel.
8. The system of claim 7 , wherein the at least one of the first controller or the second controller is further configured to, prior to failure, transfer one or more calls from at least one device of the plurality of devices to the third controller via the communication channel.
9. The system of claim 8 , wherein the first controller operates at a first frequency and the third controller operates at a second frequency different from the first frequency.
10. The system of claim 8 , wherein the first controller and the third controller operate at a same frequency.
11. A system for providing communication in a distributed land mobile radio (LMR) system architecture that includes a plurality of devices configured to communicate with one another via the system, the system comprising:
a controller configured to control transmission of a plurality of signals between the plurality of devices;
a first repeater configured to selectively receive at least a first signal of the plurality of signals, assign a first launch time to the first signal of the plurality of signals, and transmit the first signal of the plurality of signals;
a second repeater configured to selectively receive at least a second signal of the plurality of signals, assign a second launch time to the second signal of the plurality of signals, and transmit the second signal of the plurality of signals;
a third repeater configured to selectively receive at least a third signal of the plurality of signals, assign a third launch time to the third signal of the plurality of signals, and transmit the third signal of the plurality of signals; and
a transmitter configured to transmit at least one of the first signal, the second signal, or the third signal to the controller that is configured to control transmission of the plurality of signals between the plurality of devices at at least one of the first launch time, the second launch time, or the third launch time,
wherein an active repeater of one of the first repeater, the second repeater, or the third repeater provides communication in the LMR system architecture,
wherein the system comprises two standby repeaters comprising two of the first repeater, the second repeater, or the third repeater, the two standby repeaters excluding the active repeater, and
wherein one of the two standby repeaters is configured to switch to an active mode from a standby mode upon failure of the active repeater operating.
12. The system of claim 11 , wherein the active repeater is configured to initiate a simulcast controller operation.
13. The system of claim 12 , wherein the simulcast controller operation comprises synchronizing a transmit time of calls transmitted by the active repeater.
14. The system of claim 13 , wherein the simulcast controller operation further comprises transmitting a radio call at least substantially simultaneously.
15. The system of claim 11 , wherein the controller is configured to provide a communication channel.
16. The system of claim 15 , wherein the active repeater is configurable to perform a simulcast controller operation for the communication channel.
17. The system of claim 16 , wherein the active repeater is configurable to perform the simulcast controller operation when the active repeater operates in the active mode.
18. The system of claim 17 , wherein, while the active repeater is in the active mode, the standby repeaters operate in the standby mode.