초록 ▼

A mobile communication system wherein a mobile station measures the distances between the mobile station and a plurality of adjacent radio base stations each from a time difference, eliminated by a fixed time difference, between the top time position of a time-divided CDMA burst signal received from

A mobile communication system wherein a mobile station measures the distances between the mobile station and a plurality of adjacent radio base stations each from a time difference, eliminated by a fixed time difference, between the top time position of a time-divided CDMA burst signal received from a radio base station and the top time position of a time-divided CDMA burst signal transmitted to the radio base station in response to an instruction from the radio base station so that the top of the time-divided CDMA burst signal may come to the top time position of a time slot, and utilizes a result of the measurement for a hand-over discrimination, and frame synchronization between the radio base stations is established with a high degree of accuracy so that a plurality of radio base stations may operate in a same frame synchronization condition.

대표청구항 ▼

[ What is claimed is:] [1.]1. A mobile communication system having a plurality of mobile stations and at least one radio base station in which bidirectional communication using a time-divided CDMA system is performed between said mobile stations and said at least one radio base station,wherein each

[ What is claimed is:] [1.]1. A mobile communication system having a plurality of mobile stations and at least one radio base station in which bidirectional communication using a time-divided CDMA system is performed between said mobile stations and said at least one radio base station,wherein each of said mobile stations measures a time difference having a fixed period of time subtracted therefrom, between a time that a time-divided CDMA burst signal is received from said radio base station and a time that a time-divided CDMA burst signal is transmitted by that respective mobile station in response to an instruction of said radio base station so that the transmitted time-divided CDMA burst signal may arrive at said radio base station at a start time position of a time slot of said time-divided CDMA system, and transmits information of the measured time difference to said radio base station.