A METHOD FOR TRANSMITTING RESPONSE MESSAGE OF RANDOM ACCESS IN CELLULAR SYSTEM AND A METHOD OF RANDOM ACCESS USING THE SAME

摘要

A method for transmitting a response message of random access in a cellular system and a random access method using the same are provided to assign and manage a mobile station identifier by using minimum random access delay and minimum radio resources. A method for transmitting a response message of random access comprises the followings steps of: receiving a preamble from a mobile station(S301); confirming whether the mobile station includes a mobile station identifier, assigned by a base station, by using the receiving preamble(S303); if not so, allocating first scheduling information to a control information block, allocating a first response message including a mobile station identifier assigned by the base station to a downlink shared channel, and transmitting the control information block and the downlink shared channel to the mobile station(S304); and if so, allocating second scheduling information to the control information block, allocating a second response message including no mobile station identifier to the downlink shared channel, and transmitting the control information block and the downlink shared channel to the mobile station(S305).