Transmission power correcting method, mobile communications system and mobile station

Abstract

A mobile station in a mobile communications system directs a base station to raise a transmission power using identification data, when a reception quality measured by the mobile station is lower than a desired reception quality. The mobile station also directs the base station to lower the transmission power using identification data, when the reception quality measured by the mobile station is higher than the desired reception quality.

1 - 7 . (canceled)  
   
   
       8 . A method of transmission power control, comprising the step of: 
 identifying, by a mobile station, a transport block set size and a modulation scheme to a base station, said transport block set size and said modulation scheme being based on a quality of a signal transmitted from base station and received by the mobile station;    identifying, by a mobile station, a transmission power correction value to the base station, wherein said transmission power correction value corresponds to the transport block set size and the modulation scheme, and said transmission power correction value is a negative value when the transport block set size is a predetermined maximum size, and when the modulation scheme is 16 QAM; and    correcting a transmission power from the base station to the mobile station based on the identified transmission power correction value.    
   
   
       9 . The transmission power control method according to  claim 8 , 
 wherein said step of identifying a transmission power correction value comprises:    identifying the negative value only when the transport block set size to be determined is the predetermined maximum size.    
   
   
       10 . The transmission power control method according to  claim 8 , 
 wherein said step of identifying a transmission power correction value comprises:    identifying the transmission power correction value as identification data.    
   
   
       11 . The transmission power control method according to  claim 9 , 
 wherein said step of identifying a transmission power correction value comprises:    identifying the transmission power correction value as identification data.    
   
   
       12 . A mobile station, comprising: 
 an identification device configured to identify a transport block set size and a modulation scheme to a base station, said transport block set size and said modulation scheme being based on a quality of a signal transmitted from base station and received by the mobile station; and    an identification device configured to identify a transmission power correction value to the base station, wherein said transmission power correction value corresponds to the transport block set size and the modulation scheme, and said transmission power correction value is a negative value when the transport block set size is a predetermined maximum size, and when the modulation scheme is 16 QAM.    
   
   
       13 . A base station, comprising: 
 a correction device configured to correct a transmission power from the base station to a mobile station based on a transmission power correction value identified by mobile,    wherein    said transmission power correction value corresponds to the transport block set size and the modulation scheme,    said transmission power correction value is a negative value when the transport block set size is a predetermined maximum size, and when the modulation scheme is 16 QAM, and    said transport block set size and said modulation scheme is based on a quality of a signal transmitted from the base station and received by the mobile station.