HYBRID LAND MOBILE RADIO SYSTEM INCORPORATING MOBILITY MANAGEMENT AND OUT-OF-COVERAGE INDICATION

摘要

The present disclosure provides a system and a method for providing mobility management and out-of-coverage indication in a hybrid system comprised of conventional LMR sites and trunking LMR sites. If a radio is located at a conventional site, the radio provides its location and user group data to the disclosed system through its traffic channel when the channel is idle. If the radio is located at a trunking site, the radio provides its location and user group data to the disclosed system through the trunking site's control channel. Knowledge of the radio's current location and user group data is used to provide dynamic call routing and data management within the disclosed system. The disclosed system and method provides seamless communication between a trunking site and a conventional site while concurrently enhancing the hybrid system to provide mobility management and out-of-coverage indication features typically associated with a stand-alone trunking system.

主权项

1. A method for providing mobility management and out-of-coverage indication in a hybrid land mobile radio system that includes a conventional land mobile radio site and a trunking land mobile radio site, the method comprising:
monitoring a traffic channel of the conventional land mobile radio site of the hybrid land mobile radio system; communicating, over the traffic channel, data packets between the conventional land mobile radio site and a radio, wherein receipt of the data packets indicates that the radio is within coverage of the hybrid land mobile radio system; communicating, over the traffic channel, radio data between the radio and the conventional land mobile radio site when the traffic channel is idle; and indicating that the radio is out-of-coverage if communication between the radio and the conventional land mobile radio site is not detected on the traffic channel for an allotted amount of time.