Abstract: Disclose is a synchronized wireless communication network (100) operating in single frequency network mode comprising a first base station (502) broadcasting, on a first channel, broadcast data and a common sequence (508) that is generated from a first channel identifier, and wherein the first base station transmits data on a common control channel. A second base station (510), adjacent to the first base station and synchronized with the first base station, the second base station simultaneously broadcasting on the first channel the broadcast data and the common sequence, and wherein the second base station transmits data on a common control channel.

Abstract: Disclose is a synchronized wireless communication network (100) operating in single frequency network mode comprising a first base station (502) broadcasting, on a first channel, broadcast data and a common sequence (508) that is generated from a first channel identifier, and wherein the first base station transmits data on a common control channel. A second base station (510), adjacent to the first base station and synchronized with the first base station, the second base station simultaneously broadcasting on the first channel the broadcast data and the common sequence, and wherein the second base station transmits data on a common control channel.

Abstract: A method and apparatus are provided for muting a audio signal in a digital communication system. The method includes the steps of integrating an indicated error per frame for a time interval and comparing the integrated value with a threshold. The method also includes the step of applying a heavy mute to a frame, with an indicated error, when the integrated value does not exceed the threshold and a light mute to a frame with an indicated error, when the integrated value exceeds the threshold. Integrating the indicated error allows a heavy mute to be applied to bad frames when errors are occasional in nature. Integration also allows a light mute to be applied in the case where the content of a signal has been highly corrupted with erroneous information thereby maximizing the information content of good frames while still allowing contributions from corrupted frames at a reduced signal level.

Abstract: A method and apparatus is offered of exchanging a communicated signal at a base site with a communication unit on an indexed frequency of a frequency hopping communication system. The method includes the steps of transceiving, through a first base site transceiver, a first communicated signal within a first frame on a first frequency of the indexed frequency; and, while transceiving within the first frame, tuning a second, extra base site transceiver to an indexed frequency of a second frame. The second transceiver may then be used to transceive a signal within the second frame while the first transceiver is tuned to the next indexed frequency. Additional communication units may be added by adding one base site transceiver per communication unit while maintaining a single extra transceiver per frame.

Abstract: A communication system which controls access to a single communications channel by a plurality of remote units arranged in predetermined groups is disclosed. Assignment of the channel is controlled by a central control station which provides time periods on the channel for remote units to request permission to transmit on the channel. As the channel becomes clear, the central control station transmits a grant of service to a requesting remote unit group permitting real time transmission of voice or data on the channel. At the conclusion of the transmission, the central control station detects an end-of-transmission condition and revokes the grant of service to the served remote unit group.

Abstract: A communications system central controller which regulates the access of a plurality of remote units to a single communications channel is disclosed. The central controller establishes a period of time wherein a remote unit may request service following the transmission of another remote unit. The central controller interprets the remote unit request for service, stores the request, and grants permission for the remote unit to transmit its message in accordance with the priority in the storage means. The grant of service is revoked by the central controller after a predetermined period of time following the conclusion of the remote unit transmission.

Abstract: A remote unit which transmits and receives messages within a fleet of remote units on a single communications channel shared by a plurality of remote unit fleets is disclosed. Access to the channel is regulated by a central control station which transmits control signals on the channel. To obtain service, a remote unit transmits a request synchronized by one of the control signals. Upon receiving a grant of service from the central control station, the remote unit may transmit a message to its fleet. At the conclusion of the message, an end-of-transmission condition is indicated by the remote unit.