Communication System, Base Station Apparatus, Server Apparatus, Mobile Station Apparatus, and Transmission Data Amount Determining Method

A server apparatus communicating with a mobile station apparatus by using a plurality of links relayed by a plurality of base station apparatus, respectively, wherein a part between each of the base station apparatuses and the mobile station apparatuses in each of the links is a radio link, said server apparatus comprising:

• transmittable data amount information acquiring means for acquiring transmittable data amount information representing amounts of data able to be transmitted through each radio link from each of said base station apparatuses to said mobile station apparatus;
• distribution rate determining means for determining rates of distribution of communication data to the respective links, based on amounts of transmittable data represented by the transmittable data amount information;
• and
• communication data transmitting means for transmitting communication data of amounts corresponding to the determined rates of distribution to each of said links.

A mobile station apparatus for making a communication by using a plurality of links relayed by a plurality of base station apparatuses, respectively, wherein a part between each of the base station apparatuses and the mobile station apparatus in each of the links is a radio link, said mobile station apparatus comprising:

• transmittable data amount information acquiring means for acquiring transmittable data amount information representing amounts of data able to be transmitted through each radio link from the mobile station apparatus to each of said base station apparatuses;
• distribution rate determining means for determining rates of distribution of communication data to the respective links, based on amounts of transmittable data represented by the transmittable data amount information;
• and
• communication data transmitting means for transmitting communication data of amounts corresponding to the determined rates of distribution to each of said links.

A transmission data amount determining method of determining an amount of transmission data for each link in a communication system for making a multilink communication by using a plurality of links, each of the links partially includes a radio link, said transmission data amount determining method comprising:

• a transmittable data amount information acquisition step of acquiring transmittable data amount information representing amounts of data able to be transmitted through the radio link included in each of said links, based on radio band information on the radio link;
• a distribution rate determination step of determining rates of distribution of transmission data to the respective links, based on amounts of transmittable data represented by the transmittable data amount information;
• and
• a data transmission step of transmitting transmission data of amounts corresponding to the determined rates of distribution to each of said links.