Method and device for signaling information related to TDD slot configuration in NR V2X

A first device for performing wireless communication, the first device comprising:

• one or more memories storing instructions;
• one or more transceivers;
• and
• one or more processors connected to the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to:
• obtain information related to a time division duplex (TDD) configuration;
• obtain information related to a starting symbol used for sidelink and information related to a number of symbols used for sidelink;
• determine a set of slots assigned to a sidelink resource pool, based on a bitmap related to the sidelink resource pool and based on the information related to the TDD configuration;
• transmit, to a second device, a sidelink-synchronization signal block (S-SSB),
• wherein the S-SSB includes a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS), and a physical sidelink broadcast channel (PSBCH) including a sidelink TDD configuration, and
• transmitting, to the second device, a physical sidelink shared channel (PSSCH) based on the sidelink TDD configuration in the PSBCH,
• wherein the sidelink resource pool includes a plurality of slots, and
• wherein the starting symbol used for sidelink included in each of the plurality of slots and the number of symbols used for sidelink included in each of the plurality of slots are configured to be constant in the sidelink resource pool.

A device adapted to control a first user equipment (UE), the device comprising:

• one or more processors;
• and
• one or more memories being operably connectable to the one or more processors and storing instructions, wherein the one or more processors execute the instructions to:
• obtain information related to a time division duplex (TDD) configuration;
• obtain information related to a starting symbol used for sidelink and information related to a number of symbols used for sidelink;
• determine a set of slots assigned to a sidelink resource pool, based on a bitmap related to the sidelink resource pool and based on the information related to the TDD configuration;
• transmit, to a second UE, a sidelink-synchronization signal block (S-SSB),
• wherein the S-SSB includes a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS) and a physical sidelink broadcast channel (PSBCH) including a sidelink TDD configuration, and
• transmit, to the second UE, a physical sidelink shared channel (PSSCH) based on the sidelink TDD configuration in the PSBCH,
• wherein the sidelink resource pool includes a plurality of slots, and
• wherein the starting symbol used for sidelink included in each of the plurality of slots and the number of symbols used for sidelink included in each of the plurality of slots are configured to be constant in the sidelink resource pool.