Data transmission system
First Claim
1. A data transmission system, comprising:
- a base station;
at least one mobile station and a repeater station, each of said stations operating to transmit and to receive;
computer means associated with said repeater station,said computer means determining, based on contents of a message transmitted by a transmitting station which is one of said base and mobile stations and received by said repeater station, how many times said message had been transmitted by said transmitting station; and
trigger means for causing said repeater station to retransmit said message solely when said computer means determines that said message has been retransmitted a preset number of times by said transmitting station.
2 Assignments
0 Petitions
Accused Products
Abstract
Data is transmitted from a mobile or a base station to a booster or repeater station which, if it identifies that the same message has been retransmitted a preset number of times by the mobile or base station it automatically retransmits the data. The number of times a message has been retransmitted may be coded on each message or determined by comparing the retransmitted messages with a previously sent message that will have been stored in memory by the repeater and when the message in memory and retransmitted message are the same, registering another transmission of the message until the preset number is registered and then retransmitting the message preferrably from memory. In another arrangement the relay station receives and stores or otherwise identifies data from the mobile or base and listens for an acknowledgement from the receiving station, if no acknowledgement is received within a preset period of time the message is automatically retransmitted by the relay station. In either case the first time a message is received it will not except in certain circumstances be retransmitted by the repeater.
104 Citations
15 Claims
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1. A data transmission system, comprising:
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a base station; at least one mobile station and a repeater station, each of said stations operating to transmit and to receive; computer means associated with said repeater station, said computer means determining, based on contents of a message transmitted by a transmitting station which is one of said base and mobile stations and received by said repeater station, how many times said message had been transmitted by said transmitting station; and trigger means for causing said repeater station to retransmit said message solely when said computer means determines that said message has been retransmitted a preset number of times by said transmitting station. - View Dependent Claims (2, 3, 4)
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5. A method of transmitting data in a system having a base station, at least one mobile station and a repeater station, each of said stations operating to transmit and to receive, said method comprising:
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identifying each message with a code indicating how many times the transmission of that message has been repeated by the transmitting station; transmitting said code with said message; and identifying said code at said repeater station and retransmitting said message by said repeater station solely when said code identified at said repeater station indicates said message has been retransmitted by said transmitting station a preset number of times. - View Dependent Claims (6, 7)
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8. A data transmission system comprising:
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a base station operating to transmit on a first frequency and receive on a second frequency different from said first frequency; at least one mobile station receiving on said first frequency and transmitting on said second frequency and retransmitting on said second frequency; computer means associated with said repeater station, said computer means temporarily storing in a memory a first message received on said second frequency from one of said at least one mobile stations; means to determine if a subsequent message received on said second frequency within a preset time of receipt by said repeater station of said first message from said one mobile station is a repeat of said first message; and means to cause said repeater station to retransmit said first message solely if such a subsequent repeat message is received from said one of said mobile stations within said preset time. - View Dependent Claims (9)
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10. A method for operating a repeater station in a data transmission system including a base station transmitting on a first frequency and receiving on a second frequency different from said first frequency, at least one mobile station receiving on said first frequency and transmitting on said second frequency, said repeater station receiving on said second frequency and retransmitting on said second frequency, said method comprising:
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temporarily storing in a memory a first message received by said repeater station on said second frequency from a mobile station; determining if a subsequent message received on said second frequency by said repeater station within a preset time from receipt of said first message is a repeat of said first message; and retransmitting said first message from memory by said repeater station solely if such subsequent message is a repeat of said first message from said mobile and said subsequent message is received by said repeater station within said preset time. - View Dependent Claims (11)
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12. A data transmission system comprising:
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a base station transmitting on a first frequency and receiving on a second frequency different from said first frequency; at least one mobile station receiving on said first frequency and transmitting on said second frequency and a repeater station receiving on said second frequency; transmitting on said second frequency and receiving acknowledgements on said first frequency; computer means associated with said repeater station, said computer means temporarily storing in memory a first message received on said second frequency from a mobile station; means to detect an acknowledgement signal for said first message transmitted on said first frequency; and means in said computer means to trigger retransmission of said first message from memory solely if no acknowledgement is received within said preset period of time. - View Dependent Claims (13)
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14. A method of operating a repeater station in a data transmission system including a base station transmitting on a first frequency and receiving on a second frequency and at least one mobile station receiving on said first frequency and transmitting on said second frequency, said repeater station receiving on said second frequency, retransmitting on said second frequency and receiving acknowledgement signals on said first frequency, said method comprising:
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temporarily storing in memory a first message received on said second frequency by said repeater station from a mobile station; sensing for an acknowledgement of said first message received by said repeater station on said first frequency; and retransmitting said first message stored in memory by said repeater station solely if such acknowledgement is not sensed within a preset period of time from receipt of said first message by said repeater station. - View Dependent Claims (15)
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Specification