METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING SPREAD CODE INFORMATION OF PACKET DATA CHANNEL IN COMMUNICATION SYSTEM

摘要

PURPOSE: A method and apparatus for transmitting/receiving spread code information of a packet data channel in a communication system are provided to enhance a performance of a packet data channel, that is, a data throughput of a system, by using every Walsh code available for the packet data channel. CONSTITUTION: A base station transmitter judges Walsh codes available for a packet data channel(401). The base station transmitter judges whether Walsh codes available for a packet data channel can be expressed only with an end point index of 5 bits(402). That is, it is judged whether there is a Walsh hole in a Walsh code list previously arranged with a receiver. If it is judged that there is no Walsh hole, the base station transmitter transmits only the end point information through a first packet data control channel(403). If there is a Walsh hole, the base station transmitter sets an MAC ID field(bit 1-bit 8) of a second packet data control channel with a predetermined value(404). The base station transmitter sets each value indicating availability or non-availability for the remaining 13 bits(bit 9-bit 21) of the second packet data control channel and transmits them(405).