Method and device used in UE and base station for wireless communication

A method in a base station for wireless communications, comprising:

• transmitting a first signaling;
• and
• receiving a first radio signal;
• wherein the first signaling comprises scheduling information of the first radio signal;
• the first signaling is used to determine a first index, and the first index is used to determine a transmitting antenna port of the first radio signal;
• transmit power of the first radio signal is first power, and a linear value of the first power is equal to a product of a linear value of second power and a first coefficient;
• the first coefficient is one of K candidate coefficients, K being a positive integer greater than 1;
• any of the K candidate coefficients is related to a first value, the first value is a number of non-zero-power antenna ports occupied by the first radio signal among antenna ports configured to a PUSCH bearing the first radio signal;
• the first index is used to determine the first coefficient out of the K candidate coefficients.

A UE for wireless communications, comprising:

• a first receiver, which receives a first signaling;
• and
• a first transmitter, which transmits a first radio signal;
• wherein the first signaling comprises scheduling information of the first radio signal;
• the first signaling is used to determine a first index, and the first index is used to determine a transmitting antenna port of the first radio signal;
• transmit power of the first radio signal is first power, and a linear value of the first power is equal to a product of a linear value of second power and a first coefficient;
• the first coefficient is one of K candidate coefficients, K being a positive integer greater than 1;
• any of the K candidate coefficients is related to a first value, the first value is a number of non-zero-power antenna ports occupied by the first radio signal among antenna ports configured to a PUSCH bearing the first radio signal;
• the first index is used to determine the first coefficient out of the K candidate coefficients.

A base station for wireless communications, comprising:

• a second transmitter, which transmits a first signaling;
• and
• a second receiver, which receives a first radio signal;
• wherein the first signaling comprises scheduling information of the first radio signal;
• the first signaling is used to determine a first index, and the first index is used to determine a transmitting antenna port of the first radio signal;
• transmit power of the first radio signal is first power, and a linear value of the first power is equal to a product of a linear value of second power and a first coefficient;
• the first coefficient is one of K candidate coefficients, K being a positive integer greater than 1;
• any of the K candidate coefficients is related to a first value, the first value is a number of non-zero-power antenna ports occupied by the first radio signal among antenna ports configured to a PUSCH bearing the first radio signal;
• the first index is used to determine the first coefficient out of the K candidate coefficients.