Method and apparatus for allocating and processing sequences in communication system

摘要

A method and apparatus for allocating and processing sequences in a communication system is disclosed. The method includes: dividing sequences in a sequence group into multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the n sequences making a |ri/Ni−ck/Np1| or |(ri/Ni−ck/Np1) modu mk,i| function value the smallest, second smallest, till the nth smallest respectively; allocating the sequence group to cells, users or channels. It prevents the sequences highly correlated with the sequences of a specific length from appearing in other sequence groups, thus reducing interference, avoiding the trouble of storing the lists of massive sequence groups.

主权项

1. A method for allocating sequences in a communication system, comprising:
dividing, by a communication system, sequences in a sequence group into multiple sub-groups, each sub-group corresponding to a mode of occupying time frequency resources; allocating, by the communication system, a sequence of the sub-groups in a sequence group k to at least one of: a base station, a cell, a user equipment, and a channel; wherein the sequence of a sub-group i satisfies ri=└Nick/31+1/2┘, wherein ri is a basic sequence index in a candidate sequence collection, and Ni is a length of a sequence in the candidate sequence collection, and ck is a basic sequence index of a sequence with a length of 31 determined by the sequence group k.