A SINGLE CARRIER/DS-CDMA PACKET TRANSMISSION METHOD, AN UPLINK PACKET TRANSMISSION METHOD IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM, AND A STRUCTURE OF A DOWNLINK CHANNEL IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM

摘要

A SINGLE CARRIER/DS-CDMA PACKET TRANSMISSION METHOD, AN UPLINK PACKET TRANSMISSION METHOD IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM, AND A STRUCTURE OF A DOWNLINK CHANNEL IN A. MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM A downlink channel structure is provided in a multi-carrier/DS-CDMA mobile communication system that expands a bandwidth of information symbols by a sequence of spreading codes and transmits spreading information signal obtained by the bandwidth expansion by using a plurality of subcarriers having predetermined frequency intervals. In the downlink channel structure, a plurality of ommunication channels assigned to the respective subcarrie:rs are divided into predetermined time frames and multiplexed, and the plurality of communication channels assigned to the respective subcarriers are configured to. include a common control channel shared by a plurality of users and communication channels specific to the respective users.