Communication system, apparatus, method, and recording medium for mobile communication

A mobile communication apparatus for a mobile communication terminal apparatus for performing communication through a base station, comprising:

• a transmission/reception section for transmitting/receiving data between said base station and said mobile communication terminal apparatus;
• a measuring section for measuring a moving speed of said mobile communication terminal apparatus;
• and
• a data transfer rate designation section for instructing said base station to change a data transfer rate in communication in accordance with a moving speed of said mobile communication terminal apparatus which is measured by said measuring section,
• wherein communication with said base station is performed at a data transfer rate permitted in accordance with the moving speed of said mobile communication terminal apparatus.

A communication method of performing communication between a base station and a mobile communication terminal apparatus, comprising:

• the transmission/reception step of transmitting/receiving data between said base station and said mobile communication terminal apparatus;
• the measuring step of measuring a moving speed of said mobile communication terminal apparatus;
• the data transfer rate designation step of instructing said base station to change a data transfer rate in communication in accordance with the moving speed of said mobile communication terminal apparatus which is measured in the measuring step;
• and
• the communication step of performing communication at a data transfer rate permitted in accordance with the moving speed of said mobile communication terminal apparatus.

A recording medium on which a program for executing a communication method is recorded, the method comprising:

• the transmission/reception step of transmitting/receiving data between said base station and said mobile communication terminal apparatus;
• the measuring step of measuring a moving speed of said mobile communication terminal apparatus;
• the data transfer rate designation step of instructing said base station to change a data transfer rate in communication in accordance with the moving speed of said mobile communication terminal apparatus which is measured in the measuring step;
• and
• the communication step of performing communication at a data transfer rate permitted in accordance with the moving speed of said mobile communication terminal apparatus.

A mobile communication apparatus for a mobile communication terminal for performing communication through a base station, wherein said mobile communication terminal apparatus comprises;

• a transmission/reception section for transmitting/receiving data between said base station and said mobile communication terminal apparatus;
• a measuring section for measuring a moving speed of said mobile communication terminal apparatus;
• a data transfer rate designation section for instructing said base station to change a data transfer rate in communication in accordance with a moving speed of said mobile communication terminal apparatus which is measured by said measuring section;
• wherein communication with said base station is performed at a data transfer rate permitted in accordance with the moving speed of said mobile communication terminal apparatus;
• a global positioning system reception section for receiving electric waves from measurement satellites;
• a position measuring section for measuring a current position of said mobile communication terminal apparatus at predetermined time intervals on the basis of the received satellite electric waves;
• a moving speed calculation section/storage section for calculating a moving speed of said mobile communication terminal apparatus from changes in position calculated by said position measuring section over time;
• a data transfer rate input section for inputting a desired data transfer rate;
• a moving speed/maximum data transfer rate correspondence table in which the moving speed of said mobile communication terminal apparatus is made to correspond to a maximum data transfer rate permitted in accordance with the moving speed;
• a comparing section for reading out the moving speed of said mobile communication terminal apparatus from said moving speed calculation section/storage section, reading out a maximum data transfer rate in an air zone which corresponds to the current moving speed of said mobile communication terminal apparatus from said moving speed/maximum data transfer rate correspondence table, comparing the maximum data transfer rate correspondence table, comparing the maximum data transfer rate with the desired data transfer rate input from said data transfer rate input section, and outputting a lower data transfer rate;
• an origination request section for requesting an outgoing call upon multiplexing the data transfer rate output from said comparing section on a data transfer rate designation field of a signal format as an origination request message;
• and
• a transmission/section section for transmitting the origination request message from said origination request section through an antenna;
• wherein communication with said base station is performed at a data transfer rate permitted in accordance with the moving speed of said mobile communication terminal apparatus.