Sequence-based signal processing method and apparatus

An apparatus comprising:

• a storage medium including processor-executable instructions;
• and
• a processor coupled to the storage medium;
• wherein the processor-executable instructions, when executed by the processor, cause the apparatus to:
• determine, by a terminal, a sequence {fn} consisting of 18 elements, wherein fn is an element in the sequence {fn}, fn meets fn=xn−e2π·j·a·n, 0≤n≤17, n is an integer, a is a real number, xn=u·e·π·j·sn/4, u is a non-zero complex number, sn is an element in a sequence {sn} consisting of 18 elements, the sequence {sn} belongs to a sequence set, and the sequence set comprises {−3, 3, −1, 1, 3, 1, −3, −1, 1, 1, −3, 1, 3, 3, −1, −3, −3, −3};
• map the sequence {fn} to 18 subcarriers to generate a first signal;
• and
• send the first signal.

A non-transitory computer-readable storage medium, comprising processor-executable instructions, wherein the processor-executable instructions, when executed by a processor of a computer, cause the computer to:

• determine, by a terminal, a sequence {fn} consisting of 18 elements, wherein fn is an element in the sequence {fn}, fn meets fn=xn−e2π·j·a·n, 0≤n≤17, n is an integer, a is a real number, xn=u·e·π·j·sn/4, U is a non-zero complex number, sn is an element in a sequence {sn} consisting of 18 elements, the sequence {sn} belongs to a sequence set, and the sequence set comprises {−3, 3, −1, 1, 3, 1, −3, −1, 1, 1, −3, 1, 3, 3, −1, −3, −3, −3};
• map the sequence {fn} to 18 subcarriers to generate a first signal;
• and
• send the first signal.