The transmitter, the receiver and transmitter-receiver null of the mobile radio communication system, and this mobile radio communication system which use the manner and signal transmission manner and these manners of the diffusion signal allocation in the direct diffusion CDMA portable

摘要

The present invention devises the assignment of a second spreading code in a direct spread CDMA mobile communication system, and provides a variety of services for spreading signal allocation method and signal transmission method in direct spread CDMA mobile communication system, and mobile radio communication using these methods With respect to the transmitter system, the transmitter, the receiver, and the transmitter and receiver of the mobile radio communication system, as the second spread code, the code corresponding to the base station group or the code corresponding to the network type belonging to the base station group are assigned The second spreading code is transmitted between the base station and the mobile station.