name: ACK
full_form: Acknowledgement
context: 8.1.3.6.1.1 NACK to ACK detection 8.1.3.6.1.1.1 Definition and applicability The performance requirement of PUCCH format 1 for NACK to ACK detection is determined by the two parameters: probability of false detection of the ACK and the NACK to ACK detection probability. The performance is measured by the required SNR at probability of the NACK to ACK detection equal to 0.1% or less. The probability of false detection of the ACK shall be 0.01 or less. The probability of false detection of the ACK is defined as a conditional probability of erroneous detection of the ACK at particular bit position when input is only noise. Each false bit detection is counted as one error. The NACK to ACK detection probability is the probability of detecting an ACK bit when an NACK bit was sent on particular bit position. Each NACK bit erroneously detected as ACK bit is counted as one error. Erroneously detected NACK bits in the definition do not contain the NACK bits which are mapped from DTX, i.e. NACK
description: Acknowledgement (ACK) and Negative Acknowledgement (NACK) are types of messages used for signaling in telecommunications networks. They are specifically used in Hybrid Automatic Repeat Request (HARQ) processes to indicate the successful or unsuccessful reception of data packets.
explanation: The text explicitly states that ACK and NACK are 'types of messages used for signaling' within HARQ processes, classifying them as messages.
section_title: 8.1.3.6.1Performance requirements for multi-slot PUCCH format 1
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biotag_Description: B-Message,O,O,B-Message,I-Message,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Protocol,I-Protocol,I-Protocol,I-Protocol,O,O,O,O,O,O,O,O,O,O,O,O