Patent ID: 8644239

Claim:
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; selecting, by the communication system, a sequence from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: selecting, by the communication system, n sequences in the candidate sequence collection to form sequences in a sub-group i in a sequence group k, wherein n is a natural number, i is a serial number of the sub-group, k is a serial number of the sequence group, determining by the communication system, a value of a basic sequence index r i in the sub-group i in the sequence group k, the value of r i ; is at least one of └k·N i /N 1 ┘, ┌k·N i /N 1 ┐, └k·N i /N 1 ┘+1 and ┌k·N i /N 1 ┐−1, wherein N i is a length of a sequence in the candidate sequence collection, N 1 is a length of a reference sub-group sequence; allocating, by the communication system, the sequence group to at least one of: a base station, a cell, a user equipment and a channel.