Wireless communication method and device

A wireless communication method, comprising:

• receiving, by a second terminal, a sidelink synchronization signal block (S-SSB) transmitted by a first terminal on time domain symbols available for transmitting the S-SSB in a first time unit;
• wherein the first time unit comprises M slots, a first time domain symbol available for transmitting the S-SSB in the first time unit is an (A+1)-th time domain symbol, and last B time domain symbols in the first time unit are used as guard symbols, M, A and B being all positive integers, and M≥1, A>1, B>1;
• and
• the S-SSB transmitted in the first time unit comprises a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS) and a physical sidelink broadcast channel (PSBCH).

A first terminal, comprising:

• a processor and a memory, wherein the memory is configured to store a computer program, and the processor is configured to call and run the computer program stored in the memory, to cause the first terminal to perform:
• transmitting a sidelink synchronization signal block (S-SSB) on time domain symbols available for transmitting the S-SSB in a first time unit;
• wherein the first time unit comprises M slots, a first time domain symbol available for transmitting the S-SSB in the first time unit is an (A+1)-th time domain symbol, and last B time domain symbols in the first time unit are used as guard symbols, M, A and B being all positive integers, and M≥1, A>1, B>1;
• and
• the S-SSB transmitted in the first time unit comprises a sidelink primary synchronization signal (S-PSS), a sidelink secondary synchronization signal (S-SSS) and a physical sidelink broadcast channel (PSBCH).