Excavating
Patent
1996-04-01
1997-12-23
Baker, Stephen M.
Excavating
H04L 108
Patent
active
057013128
ABSTRACT:
A communication system (100) for selectively providing repeat messages includes a message transmission device (105) for normally transmitting messages a single time, for receiving repeat requests indicating that a previously transmitted message should be transmitted again, and for automatically transmitting future messages more than once in response to determining that a number of repeat requests exceeds a transmission threshold. A radio communication device (110) is included in the communication system (100) for receiving the messages and for generating a repeat request in response to determining that the previously transmitted message has not been correctly received.
REFERENCES:
Sastry, A. R. K., "Improving Automatic Repeat-Request (ARQ) Performance on Satellite Channels Under High Error Rate Conditions", IEEE Trans. on Communications, Apr. 1975, pp. 436-439.
Bruneel, H. et al., "On the Throughput Performance of Some Continuous ARQ Strategies with Repeated Transmissions", IEEE Trans. on Communications, vol. COM-34, No. 3, Mar. 1986, pp. 244-249.
Kallel, S., "Efficient Adaptive Coding Rate Hybrid ARQ Protocols", ICC '92, pp. 953-957, Dec. 1992.
DeLuca Michael J.
Mittel James G.
Baker Stephen M.
Motorola Inc.
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