the present invention provides for managing channel configuration information in a wireless communication system . preferably , the present invention receives transport channel configuration information for configuring at least one transport channel currently not mapping a point - to - multipoint service , wherein the at least one transport channel is capable of mapping at least one new point - to - multipoint service at the start or before the stop of the at least one new point - to - multipoint service , determines whether to receive the at least one new point - to - multipoint service , and reads configuration information for the at least one new point - to - multipoint service at the start of the at least one new point - to - multipoint service if it is determined that the at least one new point - to - multipoint service is to be received .