초록 ▼

An object of the present invention is to reduce the control time required when a channel handover is performed in a mobile communication system. The conventional system has such shortcomings that a long time is required for re-designating a channel when a channel handover procedure results in failur

An object of the present invention is to reduce the control time required when a channel handover is performed in a mobile communication system. The conventional system has such shortcomings that a long time is required for re-designating a channel when a channel handover procedure results in failure. Particularly, in the common access type system, there is such a problem that since a channel handover is required to be performed several times during a channel handover procedure, an extra time is required for performing the handover procedure. The present invention has a plurality of base stations for covering the service area, and a mobile station for performing a communication with the base stations through radio channels. Here, the present invention is characterized in that the base stations notify the mobile station of a plurality of candidates when the mobile station performs a handover procedure, thereby improving the problem inherent in the conventional system that a single candidate is notified when a channel handover procedure is performed. Therefore, the present invention makes it possible to change the channel to the next candidate channel at high speed when the previous channel handover procedure results in failure.

대표청구항 ▼

[ What is claimed is:] [1.] A method for determining a next radio communication channel for a mobile station to maintain a continuing communication with a fixed network, the fixed network including a plurality of base stations each forming a radio zone respectively in a mobile communication system,

[ What is claimed is:] [1.] A method for determining a next radio communication channel for a mobile station to maintain a continuing communication with a fixed network, the fixed network including a plurality of base stations each forming a radio zone respectively in a mobile communication system, comprising the steps of:designating in the mobile station, at least one radio zone as a candidate(s) from among radio zones peripheral to a radio zone in which the mobile station is located;transmitting information indicating the designated at least one candidate radio zone, from the mobile station to the fixed network;selecting in the network, at least one radio zone from the designated candidate radio zones and at least one candidate channel for each selected one of the designated candidate radio zones;transmitting information indicating a plurality of selected candidate channels, from the network to the mobile station; anddetermining in the mobile station, the next channel from the plurality of selected candidate channels for continuing a communication between the mobile station and the network as the mobile station travels from one radio zone to another.