Mechanism for repeater error mitigation

Details Mechanism for repeater error mitigation Mechanism for repeater error mitigation

1995-09-07

1998-09-08

Baker, Stephen M.

Excavating

H04L 100

Patent

active

058056122

ABSTRACT:
An APCO 25 radio communication system 200 includes a repeater 101 arranged to receive signals from an inbound repeater link 103, thereby forming received signals. The repeater 101 is arranged to forward the received signals to a subscriber 121 via an outbound radio frequency path 113. The received signals include two types of packets, namely, packets 105 with correctable errors 107, and "erasure packets"109 with detectable-but-uncorrectable errors 111. The inbound repeater link is equipped with error correcting means 110 for correcting the correctable errors 107. The inbound repeater link is also equipped with error mitigating means 130 for mitigating the detectable-but-uncorrectable errors 111. The error mitigation is performed in accordance with the improved multi-band excitation ("IMBE") process.

REFERENCES:
patent: 5517510 (1996-05-01), Kuban et al.
AP TIA/EIA Interim Standard, "APCO Project 25 Vocoder Description," document number IS-102.BABA, Jul. 1993, provided by the Telecommunications Industry Association, p. 1, lines 28-30, and also from p. 3, line 24 to p. 4, line 16.

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