Abstract: An improved method for effectively transmitting a PSMM in a communication system is provided. According to the present invention, a mobile station decides whether s message generated in itself is a PSMM. If the message is the PSMM, the mobile station decides whether the PSMM is the most recent PSMM. If the PSMM is not the most recent PSMM, the mobile station waits until the most recent PSMM is generated. If the PSMM is the most recent PSMM, the mobile station transmits only the most recent PSMM to the base station in order to gain an acknowledgment from the base station.

Abstract: The present invention is to provide a method for controlling a handoff in a communication system. The pilot strength of a base station and the frame quality of a forward link are measured by a mobile station. The mobile station checks whether the measured pilot strength is higher than a parameter (T-ADD) that is a threshold value for the pilot strength of the base station to which a new communication path is supposed to be added. Furthermore, it is checked whether or not the measured frame quality of the forward link is good as compared with a preset parameter (T_QUALITY). It is also checked whether or not the measured pilot strength is higher than the T_PRANKth strength of the pilots of the currently active base stations. The mobile station sends a pilot strength measurement message (PSMM) to a handoff control system in order to establish a new communication path through the base station according to the above checking results.