E.f. Johnson Company

Larry Emmett

Arindam Roy

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.

Distributed land mobile radio architectures

A system and method for providing communication in a distributed LMR system architecture is provided herein, wherein the system includes a plurality of LMR subsystems interconnected by a data network. In some embodiments, a subsystem may include a distributed simulcast architecture comprising a plurality of LMR sites, each site having a subsystem controller and a plurality of repeaters. In one embodiment, one subsystem controller operates in an active mode and the remaining subsystem controllers operate in standby to provide redundancy. The repeaters include integrated voter comparator and simulcast controller functionality and circuitry. In some embodiments, the repeaters are operable in an active or standby mode, wherein repeaters in the active mode perform voter comparator and simulcast controller functionality. The distributed simulcast architecture provides simulcast controller and voter comparator redundancy, network failure redundancy, and site redundancy.

Growing community of inventors

Dallas, TX, United States of America

Larry Emmett