Block Error Rate (BLER) is a ratio of the number of erroneous blocks to the total number of blocks transmitted on a digital circuit.
It is used in
measuring the error rate when extracting data frames from a
Compact Disc
The compact disc (CD) is a Digital media, digital optical disc data storage format co-developed by Philips and Sony to store and play digital audio recordings. It employs the Compact Disc Digital Audio (CD-DA) standard and was capable of hol ...
(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.
BLER is also used for
W-CDMA
The Universal Mobile Telecommunications System (UMTS) is a 3G mobile cellular system for networks based on the GSM standard. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency ...
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 determine the in-sync or out-of-sync indication during radio link monitoring (RLM). Normal BLER is 2% for an in-sync condition and 10% for an out-of-sync condition.
References
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Compact disc
Audio software