Wireless communication method and apparatus

A wireless communication apparatus, comprising:

• at least one processor
• a non-transitory computer-readable storage medium storing a program to be executed by the at least one processor, the program including instructions to:
• obtain a first sequence, wherein a value of a length of the first sequence is 2m;
• and
• pad or truncate the first sequence to determine a second sequence having a reference signal length, wherein the reference signal length is determined based on first resource information;
• and
• a transceiver unit, configured to output the second sequence, wherein the second sequence identifies at least one of active users or channel estimation,
• wherein the first resource information comprises at least one of a number of resource blocks, a resource element, or reference signal pattern indication information,
• wherein the first sequence comprises at least one of a short first sequence or a long first sequence, wherein a length Lshort the short first sequence is a value 2m that is not greater than and closest to the reference signal length L, and wherein a length Llong of the long first sequence is a value 2m+1 that is greater than and closest to the reference signal length L, and
• wherein program instructions to pad or truncate the first sequence comprise program instructions to:
• determine at least one of a first sequence second length to be matched as Lshort-gap=L−Lshort or a first sequence third length to be matched as Llong-gap=Llong−L;
• and
• perform at least one of:
• comparing a ratio of Lshort-gap to Llong-gap with a first determining threshold, and determining to pad or truncate the first sequence based on a first comparison result;
• comparing a ratio of Lshort-gap to L with a second determining threshold, and determining to pad or truncate the first sequence based on a second comparison result;
• comparing a ratio of Llong-gap to L with a third determining threshold, and determining to pad or truncate the first sequence based on a third comparison result;
• comparing a ratio of Lshort-gap to Lshort with a fourth determining threshold, and determining to pad or truncate the first sequence based on a fourth comparison result;
• or
• comparing a ratio of Llong-gap to Llong with a fifth determining threshold, and determining to pad or truncate the first sequence based on a fifth comparison result.

A wireless communication apparatus, comprising:

• a transceiver configured to obtain a first sequence, wherein a length of the first sequence is 2m, and m is a positive integer;
• and
• a logic circuit configured to determine a second sequence based on the first sequence by:
• padding or truncating the first sequence to determine the second sequence having a reference signal length, wherein the reference signal length is determined based on first resource information, and wherein the second sequence identifies at least one of active users or channel estimation,
• wherein the transceiver is further configured to output the second sequence, and
• wherein the first resource information comprises at least one of a number of resource blocks, a resource element, or reference signal pattern indication information,
• wherein the first sequence comprises at least one of a short first sequence or a long first sequence, wherein a length Lshort of the short first sequence is a value 2m that is not greater than and closest to the reference signal length L, and wherein a length Llong of the long first sequence is a value 2m+1 that is greater than and closest to the reference signal length L, and
• wherein padding or truncating the first sequence comprises:
• determining at least one of a first sequence second length to be matched as Lshort-gap=L−Lshort or a first sequence third length to be matched as Llong-gap=Llong−L;
• and
• performing at least one of:
• comparing a ratio of Lshort-gap to Llong-gap with a first determining threshold, and determining to pad or truncate the first sequence based on a first comparison result;
• comparing a ratio of Lshort-gap to L with a second determining threshold, and determining to pad or truncate the first sequence based on a second comparison result;
• comparing a ratio of Llong-gap to L with a third determining threshold, and determining to pad or truncate the first sequence based on a third comparison result;
• comparing a ratio of Lshort-gap to Lshort with a fourth determining threshold, and L determining to pad or truncate the first sequence based on a fourth comparison result;
• or
• comparing a ratio of Llong-gap to Llong with a fifth determining threshold, and determining to pad or truncate the first sequence based on a fifth comparison result.