Method for measuring received signal quality in a mobile wireles

Details Method for measuring received signal quality in a mobile wireles Method for measuring received signal quality in a mobile wireles

1998-04-24

2000-12-19

Bocure, Tesfaldet

Pulse or digital communications

Testing

Data rate

375340, H04B 346, H04B 1700

Patent

active

061635715

ABSTRACT:
A received signal processing circuit for a receiver in a digital communication system uses a re-encode and compare scheme to measure received signal quality. The received signal is demodulated and decoded to produce an estimate of the original information bit sequence. The estimate of the information bit sequence is re-encoded using the same channel code as the transmitter. The re-encoded bits are compared to the demodulated bits output from the demodulator to yield an initial estimate of the channel bit error rate caused by the communication channel. Bias in th4e initial estimate of the channel bit error rate is removed to produce a refined estimate of the channel bit error rate.

REFERENCES:
patent: 5278404 (1994-01-01), Yeats
patent: 5414737 (1995-05-01), Uesugi et al.
patent: 5581577 (1996-12-01), Abe
patent: 5781588 (1998-07-01), Abe et al.

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