Methods and apparatuses for s-ssb transmission in an unlicensed spectrum

A base station (BS), comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the base station to:
• transmit configuration information for sidelink synchronization signal block (S-SSB) in an unlicensed spectrum, wherein the configuration information includes at least one of the following:
• a first configuration associated with a time interval between adjacent S-SSB occasions sharing a same channel occupancy time (COT);
• a second configuration for performing listen before talk (LBT) type 2;
• or
• a third configuration for performing LBT type 1.

A method performed by a user equipment (UE), the method comprising:

• obtaining configuration information for sidelink synchronization signal block (S-SSB) in an unlicensed spectrum, wherein the configuration information includes at least one of the following:
• a first configuration associated with a time interval between adjacent S-SSB occasions sharing a same channel occupancy time (COT);
• a second configuration for performing listen before talk (LBT) type 2;
• or
• a third configuration for performing LBT type 1;
• performing an LBT procedure associated with an S-SSB occasion based on the configuration information;
• and
• transmitting an S-SSB on the S-SSB occasion in response to the LBT procedure being successful.

A processor for wireless communication, comprising:

• at least one controller coupled with at least one memory and configured to cause the processor to:
• obtain configuration information for sidelink synchronization signal block (S-SSB) in an unlicensed spectrum, wherein the configuration information includes at least one of the following:
• a first configuration associated with a time interval between adjacent S-SSB occasions sharing a same channel occupancy time (COT);
• a second configuration for performing listen before talk (LBT) type 2;
• or
• third configuration for performing LBT type 1;
• perform an LBT procedure associated with an S-SSB occasion based on the configuration information;
• and
• transmit an S-SSB on the S-SSB occasion in response to the LBT procedure being successful.