Patent ID: 7020176
Filing Date: 2006-03-28
Classification: H04J

Abstract:
1. A method for determining an optimal channelization code for assignment to a channel in a Universal Mobile Telecommunication System (UMTS), said method comprising the steps of: extending a plurality of channelization codes in the form of a tree structure having a plurality of sub-trees; determining if a flag of at least one of a plurality of channelization code numbers corresponding to respective channelization codes of the plurality of channelization codes should be set or released; receiving a spreading factor, if it is determined that the flag of the at least one of the plurality of channelization code numbers should be set; determining the optimal channelization code using the spreading factor and the tree structure, comprising the steps of: generating and assigning a channelization code number for the optimal channelization code; and setting the flag of at least the generated channelization code number, by setting the flag of a channelization code number corresponding to the optimal channelization code and setting the flags corresponding to channelization code numbers assigned to a particular sub-tree of the tree structure.