Arrangement for remote control of repeater stations
First Claim
1. In a radio communication system for providing communication among mobile stations and between a central station and at least one mobile station, said system having multiple repeater stations each having a transmitter and a receiver providing detected signals from said mobile stations, and said system having at least one voter for selecting one of the detected signals in accordance with predetermined criteria and identifying the repeater station providing the selected signal, the improvement comprising:
- remote means for causing the repeater station so identified by said voter to transmit the selected signal without the selected signal being coupled through said voter, thereby minimizing signal degradation; and
means for alternatively causing the repeater station so identified to transmit a signal originated by the central station.
1 Assignment
0 Petitions
Accused Products
Abstract
A control arrangement for a radio communication system in which mobile users communicate with one another and with a central dispatcher via repeaters. In a first embodiment, the repeater station providing the best quality received signal from a mobile station is caused to re-transmit that signal without the signal traversing lengthy telephone lines to and from a central station. A second embodiment, a repeater station having a local and plural satellite receivers selects the best quality signal among those received by its local receiver and its satellites for re-transmission.
39 Citations
32 Claims
-
1. In a radio communication system for providing communication among mobile stations and between a central station and at least one mobile station, said system having multiple repeater stations each having a transmitter and a receiver providing detected signals from said mobile stations, and said system having at least one voter for selecting one of the detected signals in accordance with predetermined criteria and identifying the repeater station providing the selected signal, the improvement comprising:
-
remote means for causing the repeater station so identified by said voter to transmit the selected signal without the selected signal being coupled through said voter, thereby minimizing signal degradation; and means for alternatively causing the repeater station so identified to transmit a signal originated by the central station. - View Dependent Claims (2, 3)
-
-
4. In a radio communication system having multiple repeater stations for providing communication among mobile or portable radio stations and between mobile or portable radio stations and a central radio station, wherein each repeater includes a transmitter and a receiver, the improvement comprising:
-
means within each repeater receiver for detecting a mobile or portable originated signal; means, coupled to each of said means for detecting, for selecting one of the detected signals and identifying the repeater station providing the selected signal; and means, coupled to said means for selecting, for causing the identified repeater station to transmit via its transmitter the selected signal without the selected signal being coupled through said means for selecting, thereby minimizing signal degradation. - View Dependent Claims (5, 6, 7)
-
-
8. In a radio communication system having a repeater station including a transmitter, a co-located receiver, and at least one additional remote receiver, each of the receivers providing a detected signal originated by a mobile or portable radio station, the improvement comprising:
-
first means for comparing all of the detected signals and first selecting one such signal from among them; second means for comparing the audio signal from said co-located receiver with said selected signal and second selecting between them; and means for causing said transmitter to transmit said second selected signal. - View Dependent Claims (9, 10, 11, 12)
-
-
13. A radio repeater arrangement for providing communication among mobile or portable radio stations and between such mobile or portable stations and a central radio station comprising:
-
first and second remote repeater stations each repeater station having a receiver for receiving and detecting a signal originated by a mobile or portable station and providing a detected signal, each of said remote repeater stations further including a repeater transmitter for transmitting a dispatcher-originated signal or for re-transmitting a signal detected by its associated receiver; a voter, coupled to each receiver, for selecting a particular signal from among all such signals coupled thereto, for providing the selected signal, for generating a selection signal uniquely identifying the remote station associated with the selected signal, and for providing a keying control signal whenever any mobile or portable originated signal is coupled thereto; a remote keying unit (RKU) coupled to the keying control signal and for generating in response thereto a repeater control signal for controlling the operating mode of a remote repeater station; a transmitter selection unit (TSU) responsive to the selection signal from said voter for selectively dispatching a repeater control signal from said RKU to the remote station associated with the receiver providing the selected signal; and control means within each remote station responsive to the RKU originated repeater control signal for coupling the output of its associated receiver to a signal input of its associated transmitter thereby causing the transmitter to retransmit the received audio signal therefrom. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
-
21. A radio repeater arrangement providing communication among mobile or portable radio stations and between such mobile or portable stations and a central station comprising:
-
first and second repeater stations each having a receiver for receiving and demodulating a signal transmitted by a mobile or portable station, at least one of which repeater stations includes a transmitter for transmitting a radio signal modulated by dispatcher originated audio, or for retransmitting the information of a signal received by a receiver; a voter, coupled to each receiver for selecting a particular one of said received signals from among all such signals coupled thereto, for generating a selection signal uniquely identifying the repeater station associated with the selected signal, and for providing a keying control signal whenever any detected audio signal is coupled thereto; a remote keying unit (RKU), coupled to the voter so as to receive the keying control signal and the selected signal, said RKU for generating a composite signal including an RKU originated repeater control signal for controlling the operating mode of said at least one remote repeater station and also including the received signal selected by said voter; a transmitter selection unit (TSU) responsive to the selection signal from said voter for selectively dispatching the composite signal from said RKU to the remote station associated with the received signal selected by said voter; and control means within each remote station responsive to the RKU originated mode control signal within the composite signal for coupling the received signal, selected by said voter, directly from the receiver associated therewith to a signal input of the transmitter thereby causing the transmitter to transmit the selected signal. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
Specification