Mobile communications system and method for controlling transmission power

Abstract

A mobile communications system, designed to enable the overall amount of power emitted to be kept down, provided with a mobile station location information generating unit for generating location information indicating a present location of a mobile station when transmitting a request for increasing the transmission power from the mobile station in the middle of handover with base transceiver stations, a base transceiver station location information generating unit for generating location information indicating a present location of the base transceiver stations, a base transceiver station specifying unit for specifying one base transceiver station nearest to the mobile station from said location information, and a transmission power control unit for instructing an increase of the transmission power in only the specified base transceiver station.

1 . A mobile station used in a mobile communication system comprising: 
 a mobile station location information generating unit that generates location information indicating a geographical location of the mobile station; and    a transmitter that transmits the location information to a base station.    
   
   
       2 . The mobile station according to  claim 1 , wherein the mobile station location information generating unit generates the location information based on a GPS unit.  
   
   
       3 . The mobile station according to  claim 1 , wherein the location information is used to decide which base station is the closest to the mobile station.  
   
   
       4 . The mobile station according to  claim 1 , wherein the transmitter transmits the location information while the mobile station executes a handover.  
   
   
       5 . The mobile station according to  claim 1 , wherein the transmitter transmits the location information periodically.  
   
   
       6 . The mobile station according to  claim 1 , wherein the transmitter transmits the location information with a reception quality measuring report.  
   
   
       7 . The mobile station according to  claim 1 , wherein the transmitter starts to transmit the location information when a condition for a handover of the mobile station is satisfied.