Synchronization signal transmission method and apparatus

An apparatus, comprising:

• one or more processors;
• and
• a memory, wherein the memory stores a computer program executable by the one or more processors, and when the computer program stored in the memory is executed, the one or more processors execute operations comprising:
• generating a sidelink primary synchronization sequence d1(n), wherein the sidelink primary synchronization sequence d1(n) satisfies:
• d1(n)=1−2x(m′), wherein:
• m′=(n+Δ+43NID(2)′)mod 127, 0≤n<127, NID(2)′∈{0,1,2}, and Δ=22, wherein
• x(i+7)=(x(i+4)+x(i))mod 2, and
• [x(6) x(5) x(4) x(3) x(2) x(1) x(0)]=[1 1 1 0 1 1 0];
• and
• transmitting a sidelink primary synchronization signal corresponding to the sidelink primary synchronization sequence d1(n).

A non-transitory computer-readable storage medium storing instructions which, when executed by at least one processor of an apparatus, cause the apparatus to perform operations comprising:

• generating a sidelink primary synchronization sequence d1(n), wherein the sidelink primary synchronization sequence satisfies:
• d1(n)=1−2x(m′), wherein
• m′=(n+Δ+43NID(2)′)mod 127, 0≤n<127, NID(2)′∈{0,1,2}, and Δ=22, wherein
• x(i+7)=(x(i+4)+x(i))mod 2, and
• [x(6) x(5) x(4) x(3) x(2) x(1) x(0)]=[1 1 1 0 1 1 0];
• and
• transmit a sidelink primary synchronization signal corresponding to the sidelink primary synchronization sequence d1(n).