The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2000
Filed:
Apr. 24, 1998
Ram Asokan, Cary, NC (US);
Kumar Balachandran, Cary, NC (US);
Ericsson Inc., Research Triangle Park, NC (US);
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.