Integrated circuit for controlling a communication scheme
AssigneeSun Patent Trust
InventorsYutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
Life of this patent
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Abstract
Disclosed is a relay method including: receiving, as input, respective reception signals by two receive antennas, the reception signals each including a reception signal resulting from multiplexing respective transmission signals transmitted by two transmission antennas in a first frequency band; performing frequency conversion on the reception signal received by one of the receive antennas so as to obtain a signal of a third frequency band; and performing frequency multiplexing on the signal having the third frequency band and the reception signal received by the other of the receive antennas.
Claims4
An integrated circuit comprising:
- generation circuitry, which, in operation, controls generating one or more transmission signals;
- and
- transmission circuitry, which, in operation, controls transmitting control information and the one or more transmission signals to a communication apparatus, the control information indicating a transmission scheme among a plurality of transmission schemes;
- wherein
- in a first scheme of the plurality of transmission schemes, the one or more transmission signals is generated by precoding first modulation signals and second modulation signals with precoding matrixes being changed among each symbol, and
- in a second scheme of the plurality of transmission schemes, the one or more transmission signals is generated by precoding the first modulation signal and the second modulation signal with a precoding matrix being same among each symbol.
An integrated circuit comprising:
- reception circuitry, which, in operation, controls receiving control information and one or more transmission signals from a base station, the control information indicating a transmission scheme among a plurality of transmission schemes;
- and
- decode circuitry, which, in operation, controls decoding the one or more transmission signals based on the control information, wherein
- in a first scheme of the plurality of transmission schemes, the one or more transmission signals is generated by precoding first modulation signals and second modulation signals with precoding matrixes being changed among each symbol, and
- in a second scheme of the plurality of transmission schemes, the one or more transmission signals is generated by precoding the first modulation signal and the second modulation signal with a precoding matrix being the same among each symbol.
Dependencies are inferred from the claim text.