Method and apparatus for allocating and processing sequences in communication system

An apparatus, comprising a processor coupled with a non-transitory storage medium storing executable instructions, wherein the executable instructions, when executed by the processor, cause the apparatus to:

• obtain a group number of a sequence group;
• determine a sequence index based on the group number, a reference length, and a length of a Zadoff-Chu sequence corresponding to a reference signal sequence;
• and
• generate the reference signal sequence based on the sequence index;
• wherein determining the sequence index comprises:
• determining the sequence index based on a relation
• k
• *
• N
• i
• N
• 1
• ,
• wherein Ni is the length of the Zadoff-Chu sequence, N1 is the reference length, and the length of the Zadoff-Chu sequence is a maximum prime number less than a length of the reference signal sequence.

A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out steps of:

• obtaining a group number of a sequence group;
• determining a sequence index based on the group number, a reference length, and a length of a Zadoff-Chu sequence corresponding to a reference signal sequence;
• and
• generating the reference signal sequence based on the sequence index;
• wherein determining the sequence index comprises:
• determining the sequence index based on a relation
• k
• *
• N
• i
• N
• 1
• .
• wherein Ni is the length of the Zadoff-Chu sequence, N1 is the reference length, and the length of the Zadoff-Chu sequence is a maximum prime number less than a length of the reference signal sequence.