Transmission apparatus, reception apparatus, transmission method, and reception method

A reception apparatus, comprising:

• a receiver that receives a modulated signal including reference signals for phase noise estimation, for a plurality of reception apparatuses, where a correction coefficient of transmission power for the reference signals is associated with a pattern of a sequence used as the reference signals, on a one-to-one basis;
• and
• a circuit that estimates phase noise using the reference signals for the plurality of reception apparatuses included in the modulated signal.

A transmission method, comprising:

• Generating a modulated signal including reference signals for phase noise estimation, for a plurality of reception apparatuses, where a correction coefficient of transmission power for the reference signals is associated with a pattern of a sequence used as the reference signals, on a one-to-one basis;
• and
• transmitting the modulated signal.

A reception method, comprising:

• Receiving a modulated signal including reference signals for phase noise estimation, for a plurality of reception apparatuses, where a correction coefficient of transmission power for the reference signals is associated with a pattern of a sequence used as the reference signals, on a one-to-one basis;
• and
• estimating phase noise using the reference signals for the plurality of reception apparatuses included in the modulated signal.