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Block Error Rate

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Block Error Rate (BLER) is used in measuring the error rate when extracting data frames from a Compact Disc (CD). The BLER measurement is often used as a quality control measure with regards to how well audio is retained on a compact disc over time.

Block Error Rate (BLER) is a ratio of the number of erroneous blocks to the total number of blocks received on a digital circuit. Block error rate (BLER) is used for W-CDMA performance requirements tests (demodulation tests in multipath conditions, etc). BLER is measured after channel de-interleaving and decoding by evaluating the Cyclic Redundancy Check (CRC) on each transport block.

Block Error Rate (BLER) is used in LTE/4G technology to know the in-sync or out-of-sync indication during radio link monitoring(RLM).

BLER (in LTE) = No of erroneous blocks / Total no of Received Blocks. Normal in-sync condition is 2% of BLER and for out-of-sync is 10%.

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