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An alternate home channel for a land mobile transmission trunked communication system designates one of a plurality of repeaters for a given site or coverage zone as an alternate home repeater. The control signals transmitted over the subaudio band for all home channels repeaters in that site are al

An alternate home channel for a land mobile transmission trunked communication system designates one of a plurality of repeaters for a given site or coverage zone as an alternate home repeater. The control signals transmitted over the subaudio band for all home channels repeaters in that site are also duplicatively transmitted over the subaudio band of the alternate home repeater. Each mobile transceiver will be programmed with two channel numbers. One for the home repeater and the other for the site alternate home repeater. When the power is turned on, the mobile transceiver determines which repeater to monitor by scanning both the home and alternate home channels. When a valid control message is detected on either channel, that channel becomes the monitor channel. Operation of the mobile transceiver is then generally similar to prior operation, with the exception that the monitor channel (either home or alternate home channel) is used instead of just the home channel.

대표청구항 ▼

A land mobile transmission trunked communication system for providing radio communications among a plurality of transceivers in a give coverage zone, the system comprising: a plurality of repeater means operably connected together for establishing radio communications in the coverage zone, each repe

A land mobile transmission trunked communication system for providing radio communications among a plurality of transceivers in a give coverage zone, the system comprising: a plurality of repeater means operably connected together for establishing radio communications in the coverage zone, each repeater means having a preselected channel for communicating transmission trunked radio communications on that channel to the transceivers in the coverage zone, the transmission trunked radio communications comprising: information signals including voice information, data information, or both that are communicated with one or more transceivers on the preselected channel; and control signals that are simultaneously communicated with the transceivers according to a predefined signaling protocol in a subaudio band of the same channel over which the information signals are communicated; each transceiver including a preassigned home channel designating one of the preselected channels of one of the repeater means that will be monitored by the transceiver for control signals and a preassigned alternate home channel designating another of the preselected channels of a different one of the repeater means that will also be monitored by the transceiver for control signals, wherein the communication system uses the control signals to distributively select among all available channels the channel to be used for a particular transmission trunked radio communication.