Transmission apparatus and transmission method

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 channel 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 channel together with the control channel to the communicating opponent, the data channel 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.

A method, comprising the steps of:

• 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;
• determining a data modulation scheme and a channel coding rate for the communicating opponent based on the evaluation;
• generating a control channel indicative of the resource block to be used by the communicating opponent, the data modulation scheme and the channel coding rate;
• and
• transmitting a data channel together with the control channel to the communicating opponent, the data channel 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.

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 channel 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 channel together with the control channel to the communicating opponent, the data channel 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, and
• wherein the data modulation scheme and the channel coding rate are set uniformly over all resources blocks to be used by the communicating opponent on a per-transmission time interval.