Mobile station, base station, communications system, and communication method

Abstract

A mobile station comprises a reception unit configured to receive a signal transmitted from a base station; a selection unit configured to select a communication area to perform communication from a plurality of communication areas based on traffic load in the plurality of communication areas where the reception unit can receive the signal; and a notification unit configured to notify the base station of the communication area selected. Another mobile station comprises a reception unit configured to receive a signal transmitted from a base station; a calculation unit configured to calculate a ratio of an average reception quality value over a short period to an average reception quality value over a long period; and a selection unit configured to select a communication area to perform communication from a plurality of communication areas where the reception unit can receive the signal, based on the ratio.

1 . A mobile station comprising: 
 a reception unit configured to receive a signal transmitted from a base station;    a selection unit configured to select a communication area to perform communication from a plurality of communication areas based on traffic load in the plurality of communication areas where the reception unit can receive the signal; and    a notification unit configured to notify the base station of the communication area selected by the selection unit.    
   
   
       2 . The mobile station of  claim 1 , wherein 
 the reception unit receives a control signal including the traffic load in the communication area transmitted from the base station through a control channel;    wherein the selection unit selects the communication area based on the traffic load included in the control signal.    
   
   
       3 . The mobile station of  claim 1 , further comprising 
 an estimation unit configured to estimate the traffic load in the plurality of communication areas based on received power of the signal received by the reception unit,    wherein the selection unit selects the communication area based on the traffic load estimated by the estimation unit.    
   
   
       4 . (canceled)  
   
   
       5 . A base station comprising: 
 a transmission unit configured to transmit a control signal including traffic load in a communication area to a mobile station through a control channel; and    a control unit configured to control to communicate with the mobile station in a communication area selected by the mobile station.    
   
   
       6 . (Canceled).  
   
   
       7 . A communication system comprising: 
 a mobile station that includes a reception unit configured to receive a signal transmitted from a base station, a selection unit configured to select a communication area to perform communication from a plurality of communication areas based on traffic load in the plurality of communication areas where the reception unit can receive the signal, and a notification unit configured to notify the base station of the communication area selected by the selection unit; and    the base station that includes a control unit configured to control to communicate with the mobile station in the communication area notified from the notification unit.    
   
   
       8 . A communication method, comprising 
 selecting by a mobile station, a communication area where the mobile station performs communication, from a plurality of communication areas, based on traffic load in the plurality of communication areas capable of receiving a signal transmitted from a base station;    notifying the base station of the selected communication area; and    controlling by the base station, to communicate with the mobile station in the communication area notified from the mobile station.    
   
   
       9 . The communication method of  claim 8 , wherein 
 the base station transmits a control signal including the traffic load in the communication area to the mobile station through a control channel; and    the mobile station receives the control signal and selects the communication area based on the traffic load included in the control signal.    
   
   
       10 . The communication method of  claim 8 , wherein 
 the mobile station estimates the traffic load in the plurality of communication areas based on received power of a received signal; and    selects the communication area based on the estimated traffic load.    
   
   
       11 . The communication method of  claim 8 , wherein the mobile station selects the communication area based on reception quality of a received signal and the traffic load in the plurality of communication areas.  
   
   
       12 . (canceled)