Patent ID: 8451955

Claim:
A transmitting apparatus that assigns modulation and coding schemes respectively to a plurality of receiving apparatuses and transmits data to the receiving apparatuses by using the assigned modulation and coding schemes, the transmitting apparatus comprising: a control unit that identifies the amount of data to be transmitted to each receiving apparatus; selects, for each individual receiving apparatus, a modulation and coding scheme that transports a smaller amount of data per unit resource than the other modulation and coding schemes, from among a plurality of candidates for the modulation and coding schemes; determines whether necessary resources are allocable for transmission of the data to the receiving apparatuses, based on the amount of the data to be transmitted and the selected modulation and coding schemes; and when the resources are unallocable, changes the currently selected modulation and coding scheme of at least one of the receiving apparatuses to another modulation and coding scheme that transports a larger amount of data per unit resource than the currently selected modulation and coding scheme.