Patent ID: 6885653
Filing Date: 2005-04-26
Classification: H04J

Abstract:
1. A channel allocation method in a CDMA (Code Division Multiple Access) communication system, comprising the steps of: receiving from a UTRAN (UMTS (Universal Mobile Terrestrial System) Terrestrial Radio Access Network) one SF (Spreading Factor) node C searching a group including the received SF node C spreading a signal on a dedicated physical data channel (DPDCH) with an OVSF (Orthogonal Variable Spreading Factor) code corresponding to a selected one of the received SF node and its child nodes in the searched group; and spreading a signal on a dedicated physical control channel (DPCCH) with an OVSF code corresponding to an SF node determined by if the n of the received SF node is the first half value having (2 m −1)/4 and if the n thereof is the latter half value halving the same.