Apparatus and method for allocating connection identifier in a communication system

An apparatus for allocating connection identifiers in a communication system and a method therefor are provided to remove the necessity of performing a procedure for updating transmission connection identifiers, thereby making fast handover possible. A method for allocating connection identifiers of a base station in a communication system comprises the following steps of: checking whether the use of an individual connection identifier is possible in a terminal(413); and assigning at least one individual connection identifier to the terminal, if the use of an individual connection identifier is possible in the terminal(415).