Channel setting method in mobile communication system

Abstract

The present invention relates to a mobile communication system in which variable bandwidths are set in this manner, and a base station controller for setting these variable bandwidths. A base station controller sends a value indicating a requested bandwidth required for a channel of variable bandwidth to a base station. The base station, upon receiving the request, returns a response of an allocatable bandwidth equal to or lower than the requested bandwidth, to the base station controller. The base station controller, upon receiving the response, sets the channel of variable bandwidth between a mobile station and the base station, and between the base station and the base station controller, according to the allocatable bandwidth.

1 . A method for processing handover in a base station, which performing radio communications with a mobile station by using first and second channels, comprising the steps of: 
 in the case where said base station performs as an handover source base station,    regarding the first channel, not performing a process of stopping of a transmission from the handover source base station, and shifting to a status such that both the handover source base station and a handover target base station perform transmissions; and    regarding the second channel, stopping the transmission from the handover source base station.    
   
   
       2 . The method for processing handover in a base station, according to  claim 1 , wherein 
 said first channel is used for transmission of voices, and said second channel is used for transmission of packets.    
   
   
       3 . The method for processing handover in a base station, according to  claim 1 , wherein a transmission rate of the second channel is variable.  
   
   
       4 . The method for processing handover in a base station, according to  claim 1 , wherein 
 said first channel is used for transmission of voices, but said second channel is not used for transmission of voices.    
   
   
       5 . The method for processing handover in a base station, according to  claim 1 , wherein 
 the maximum transmission speed of the second channel is faster than a transmission speed which is available by the first channel.    
   
   
       6 . A method for processing handover in a base station, which performing radio communications with a mobile station by using first and second channels, comprising the steps of 
 in the case where said base station performs as an handover source base station,    regarding the first channel, not performing a process of stopping of a reception from the handover source base station, and shifting to a status of receiving radio signals from both the handover source base station and a handover target base station; and regarding the second channel, stopping the reception from the handover source base station.    
   
   
       7 . The method for processing handover in a base station, according to  claim 6 , wherein after the stop of the reception, a newly set channel is used as the second channel for the reception of radio signals.