| 摘要 |
Control techniques for adaptive modulation and coding are provided to select appropriate modulation and coding schemes, considering also the viewpoint of remote communication apparatuses. A reception unit (1a) receives data from communication apparatuses (2, 3, 4). A transmission unit (1b) transmits data to the communication apparatuses (2, 3, 4). A control unit (1c) determines, in an adaptive way, which modulation and coding schemes to use to transmit and receive data. At a first stage, a modulation and coding scheme with a low transmission rate or a modulation and coding scheme that minimizes power requirements is selected from among a plurality of candidates therefor. At a second stage, the modulation and coding scheme of at least one of the communication apparatuses is changed to another scheme having a higher transmission rate, when it is impossible to allocate sufficient resources for the modulation and coding schemes selected at the first stage. |
