초록 ▼

In a code division multiple access (CDMA) cellular type mobile radio communication system, in order to realize effective system operation with neither more nor less of radio base stations which are simultaneously communicated with a mobile station on carrying out soft handoff, it is possible for the

In a code division multiple access (CDMA) cellular type mobile radio communication system, in order to realize effective system operation with neither more nor less of radio base stations which are simultaneously communicated with a mobile station on carrying out soft handoff, it is possible for the mobile station to communicate with the radio base stations having proper numbers in accordance with propagation environment and a moving speed of the mobile station by changing threshold levels for selection of the radio base stations and a hysteresis margin therefor on the basis of a variation rate in a propagation loss estimated by a reception level of a pilot signal.

대표청구항 ▼

1. A method of selecting radio base stations in a single mobile station of a code division multiple access (CDMA) mobile radio communication system in which several radio base stations are simultaneously connected to said single mobile station, said method comprising the steps of:selecting the radio

1. A method of selecting radio base stations in a single mobile station of a code division multiple access (CDMA) mobile radio communication system in which several radio base stations are simultaneously connected to said single mobile station, said method comprising the steps of:selecting the radio base stations to be connected so as to become more by increasing a connection threshold level when a level of propagation loss in said single mobile station changes rapidly, the connection threshold level being given by a function of a variation rate of a relative propagation loss; and selecting the radio base stations to be connected to so as to become less by decreasing the connection threshold level when the level of the propagation loss in said single mobile station changes slowly, thereby ensuring connection of the radio base station having a minimum propagation loss.