name: SSB
full_form: Synchronization Signal Block
context: eNB, see TS 36.314 [13]. QCI values of the RABs that have contributed to a measurement value are logged with the measurement values. - M6: Packet Delay measurement, separately for DL and UL, per QCI per UE, see UL PDCP Delay, by the UE, and Packet Delay in the DL per QCI, by the eNB, TS 36.314 [13]. NOTE 1: If the UE does not detect any UL PDCP delay based on the delay threshold and delay report interval configured by the network, the UE does not report any UL PDCP delay measurement within that period. NOTE 2: A UE in EN-DC mode of operation can be configured with UL PDCP Packet Average Delay (ul-DelayValueConfig), if UE is capable of performing the UL average PDCP queueing delay. - M7: Packet Loss rate measurement, separately for DL and UL per QCI per UE, by the eNB, see Packet Loss rate in the UL and Packet Uu Loss rate in the DL TS 36.314 [13]. - M8: RSSI measurement by UE, see TS 36.331 [5]. - M9: RTT measurement by UE, see TS 36.331 [5]. Measurement collection triggers: - For M1:
description: The Synchronization Signal Block (SSB) is a key component in the 5G New Radio (NR) system, containing synchronization signals (PSS and SSS) that enable User Equipment (UE) to synchronize and connect to the Base Station (BS). The SSB occupies specific resources in the frequency and time domains, with its structure defined for different subcarrier spacings (SCS). Its placement is crucial as it restricts options for Narrowband Internet of Things (NB-IoT) deployment to avoid impacting NR UE synchronization performance.
explanation: The context describes the SSB as carrying synchronization signals (PSS and SSS) essential for User Equipment (UE) to connect to the Base Station (BS). This function aligns with the definition of a 'Channel' as a medium for data transmission, specifically in this case, synchronization information.
section_title: 5.2.1.4	NR SS Blocks
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