Patent ID: 8279742

Claim:
A transmitter, comprising: a resource block determination unit evaluating a channel condition for each of multiple resource blocks in each subframe and determining a resource block to be used by a communicating opponent based on the evaluation; a data modulation scheme and channel coding rate determination unit determining a data modulation scheme and a channel coding rate for the communicating opponent based on the evaluation; a control channel generation unit generating a control signal indicative of the resource block to be used by the communicating opponent, the data modulation scheme and the channel coding rate; and a transmission unit transmitting a data signal over a data channel together with the control signal over a control channel to the communicating opponent, the data signal being encoded at the channel coding rate and being modulated with the data modulation scheme, wherein the respective determinations of the resource block, the data modulation scheme and the channel coding rate are made based on a selected one of methods for achieving different levels of overhead and transmission efficiency, each of the methods being defined by a combination of a per-resource block basis, a per-transmission time interval basis and a per-packet basis.