Patent ID: 8050211

Claim:
A communication system in which a first communication apparatus and a second communication apparatus make a multilink communication by simultaneously using a plurality of links, each of the links partially includes a radio link, wherein each of said links is a link through which data is relayed by each of a plurality of relay communication apparatuses, each of said relay communication apparatuses comprising: transmittable data amount information determining means for determining transmittable data amount information representing an amount of data able to be transmitted from the first communication apparatus to the second communication apparatus through the link relayed by said relay communication apparatus; and transmittable data amount information transmitting means for transmitting the transmittable data amount information to said first communication apparatus, and said first communication apparatus comprising: transmittable data amount information receiving means for receiving the transmittable data amount information transmitted thereto; 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 relative to a sum of the amounts; and communication data transmitting means for transmitting communication data of amounts corresponding to the determined rates of distribution each of said links, wherein the radio link is a part between each of the relay communication apparatuses and the second communication apparatus in each of the links, and the transmittable data amount information is information representing amounts of data able to be transmitted through the radio link from each of the relay communication apparatuses to the second communication apparatus.