name: BLER
full_form: Block Error Ratio
context: This annex is applicable for subclause 7.8.1, 7.8.1A and 7.8.1B Power control in the downlink constant BLER target, subclause 7.8.4 and 7.8.4A Power control in the downlink, different transport formats and subclause 7.9 Downlink compressed mode. In this tests the BLER shall stay between two limits. Table F.6.1.10. Parameters for single and dual limit BLER Parameters for single limit Parameters for dual limits Specified BLER * 1.3 (upper test requirement) Specified BER BLER Specified BLER * 0.7 (lower test requirement) Bad DUT BLER *1.3 Bad DUT BER BLER Bad DUT BLER *0.7 Upper Test limit Test limit Lower Test limit Fail_high Early fail and Pass_high Early pass Pass_low Fail_low Figure F.6.1.10: Dual limit BLER
description: Block Error Ratio (BLER) is a network performance metric used to measure the ratio of erroneous blocks received to the total number of blocks transmitted in a telecommunications system.
explanation: The context explicitly mentions BLER as a parameter for testing power control in downlink transmissions, indicating its role as a measurement of network performance. The provided text from 3GPP TS 34.121 further solidifies this classification by detailing the use of BLER in setting test limits and evaluating the performance of devices under test (DUT).
section_title: F.6.1.10Dual limit BLER tests
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