Mobile communication system and transmission mode switching method used therefor as well as recording medium having program of the same method recorded therein

A transmission mode switching method capable of selecting any one of a plurality of transmission modes used for data transmission of a unit of block between a base station controlled by a base station control apparatus and a mobile station, comprising:

• a first step of detecting occurrence of a receiving error of a unit of block in said data transmission in said mobile station;
• and
• a second step of performing switching of said transmission modes based on the occurrence of said receiving error to be detected in said first step.

A recording medium having recorded therein a program of a transmission mode switching method of a mobile communication system capable of selecting any one of a plurality of transmission mode used for data transmission of a unit of block between a base station controlled by a base station control apparatus and a mobile station,

• wherein the program causes a computer to execute processing for detecting occurrence of a receiving error of a unit of block in said data transmission in said mobile station and processing for performing switching of said transmission mode based on the occurrence of said receiving error to be detected.