name: SLSS
full_form: Sidelink synchronization signal
context: [16, clause 8.4.1.5]. See clause 6.2.3 for CSI. NR-V2X sidelink supports subcarrier spacings of 15, 30, 60 and 120 kHz. Their associations to CPs and frequency ranges are as for NR UL/DL, but using only the CP-OFDM waveform. The modulation schemes available are QPSK, 16-QAM, 64-QAM, and 256-QAM. PSBCH transmits the SL-BCH transport channel, which carries the sidelink V2X Master Information Block (MIB-V2X) from the RRC layer. When in use, PSBCH transmits MIB-V2X every 160 ms in 11 RBs of the SL bandwidth, with possible repetitions in the period. DMRS associated with PSBCH are transmitted in every symbol of the S-SSB slot. S-PSS and S-SSS are transmitted together with PSBCH in the S-SSB. They jointly convey the SLSS ID used by the UE. For further details of S-SSB, SLSS, and synchronization, refer to Clause 6.2.2. Sidelink control information (SCI) in NR V2X is transmitted in two stages. The first-stage SCI is carried on PSCCH and contains information to enable sensing operations,
description: The Sidelink Synchronization Signal (SLSS) is a signal transmitted by User Equipment (UE) to facilitate sidelink synchronization in Vehicle-to-Everything (V2X) systems. It enables UEs to derive their own synchronization from various sources, such as eNodeB or Global Navigation Satellite System (GNSS), and can be transmitted on one or multiple synchronization carriers.
explanation: SLSS is classified as a Channel based on the context that describes its transmission and reception characteristics, including its optional capability for V2X UEs, transmission on synchronization carriers, and conditions for transmission specified in TS 36.331.
section_title: 5.1.2.2	SLSS
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