Control channel transmitting method, base station and terminal

A base station, comprising:

• a selecting part configured to select one control channel format from among a plurality of control channel formats having different numbers of control points, according to whether to carry out multiple input multiple output transmission;
• and
• a transmitting part configured to transmit a control channel to a terminal with the use of the selected control channel format.

A terminal comprising:

• a control channel demodulating part configured to have a control channel format notified from a base station which transmits a control channel with the use of the control channel format which is selected from among a plurality of control channel formats having different numbers of control points according to whether to carry out multiple input multiple output transmission, and demodulate the control channel received from the base station with the use of the notified control channel format;
• and
• a data channel demodulating part configured to demodulate a data channel received from the base station with the use of a result of the demodulation of the control channel carried out by the control channel demodulating part.

A terminal comprising:

• a transmitting part configured to have a control channel format notified from a base station, selected from among a plurality of control channel formats having different number of control points according to whether to carry out multiple input multiple output transmission, and transmit a control channel to the base station with the use of the notified control channel format.

A control channel transmitting method, comprising:

• selecting one control channel format from among a plurality of control channel formats having different numbers of bits of modulation method information in the control channel formats, according to whether to carry out multiple input multiple output transmission;
• and
• transmitting a control channel with the use of the selected control channel format.

A base station, comprising:

• a selecting part configured to select one control channel format from among a plurality of control channel formats having different numbers of bits of modulation method information in the control channel formats, according to whether to carry out multiple input multiple output transmission;
• and
• a transmitting part configured to transmit a control channel to a terminal with the use of the selected control channel format.

A terminal comprising:

• a control channel demodulating part configured to have a control channel format notified from a base station which transmits a control channel with the use of the control channel format which is selected from among a plurality of control channel formats having different numbers of bits of modulation method information in the control channel formats according to whether to carry out multiple input multiple output transmission, and demodulate the control channel received from the base station with the use of the notified control channel format;
• and
• a data channel demodulating part configured to demodulate a data channel received from the base station with the use of a result of the demodulation of the control channel carried out by the control channel demodulating part.