Radio transmission apparatus and methods for transmitting a single or a plurality of modulation signals from one or more antenna

A radio transmission apparatus comprising:

• a plurality of antenna and circuitry configured to:
• determine information indicative of an estimated communications channel condition;
• generate, based on the information indicative of the estimated communications channel condition, a single modulation signal or a plurality of modulation signals;
• and
• transmit, based on the generation of the single modulation signal or the plurality of modulation signals, the single modulation signal from a first antenna of the plurality of antenna or the plurality of modulation signals from the first antenna and at least a second antenna of the plurality of antenna,
• wherein the plurality of modulation signals include different information from each other and are transmitted over an identical frequency band and at an identical temporal point, and
• wherein the single modulation signal and the plurality of modulation signals contain parameter information indicating a number of modulation signals transmitted at the same time.