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

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

• transmitting first information and a first target signal, the first information indicates a listening type;
• monitoring a first radio signal on a first time-frequency resource;
• wherein the listening type indicated by the first information is used for determining whether a first time-frequency resource is used for wireless transmission;
• if it is determined that the first time-frequency resource is used for wireless transmission, the first radio signal is transmitted with a first power on the first time-frequency resource;
• otherwise, wireless transmission on the first time-frequency resource is dropped, if the listening type indicated by the first information is a first listening type, the first power cannot exceed a first maximum transmitting power, and reception quality of the first target signal is used for determining the first maximum transmitting power;
• if the listening type indicated by the first information is a second listening type, the first power cannot exceed a second maximum transmitting power, the second maximum transmitting power is greater than the first maximum transmitting power;
• transmitting one or more signalings;
• and
• wherein any signaling of the one or more signalings indicates a listening type and a power offset;
• for any signaling of the one or more signalings,
• if the listening type indicated by the any signaling is the same as the listening type indicated by the first information, the first power is related to the power offset indicated, otherwise, the first power is not related to the power offset indicated.

A UE used for wireless communication, comprising:

• a first receiver:
• receiving first information and a first target signal, the first information indicates a listening type;
• a first determiner:
• determining whether a first time-frequency resource is used for wireless transmission based on the listening type indicated by the first information;
• and
• a first transmitter:
• if it is determined that the first time-frequency resource is used for wireless transmission, a first radio signal is transmitted with a first power on the first time-frequency resource;
• otherwise, wireless transmission on the first time-frequency resource is dropped;
• wherein if the listening type indicated by the first information is a first listening type, the first power cannot exceed a first maximum transmitting power, and reception quality of the first target signal is used for determining the first maximum transmitting power;
• if the listening type indicated by the first information is a second listening type, the first power cannot exceed a second maximum transmitting power, the second maximum transmitting power is greater than the first maximum transmitting power;
• wherein the first receiver receives one or more signalings;
• and
• wherein any signaling of the one or more signalings indicates a listening type and a power offset;
• for any signaling of the one or more signalings,
• if the listening type indicated by the any signaling is the same as the listening type indicated by the first information, the first power is related to the power offset indicated, otherwise, the first power is not related to the power offset indicated.

A base station used for wireless communication, comprising:

• a second transmitter:
• transmitting first information and a first target signal, the first information indicates a listening type;
• and
• a second receiver:
• monitoring a first radio signal on a first time-frequency resource;
• wherein the listening type indicated by the first information is used for determining whether a first time-frequency resource is used for wireless transmission;
• if it is determined that the first time-frequency resource is used for wireless transmission, the first radio signal is transmitted with a first power on the first time-frequency resource;
• otherwise, wireless transmission on the first time-frequency resource is dropped,
• if the listening type indicated by the first information is a first listening type, the first power cannot exceed a first maximum transmitting power, and reception quality of the first target signal is used for determining the first maximum transmitting power;
• if the listening type indicated by the first information is a second listening type, the first power cannot exceed a second maximum transmitting power, the second maximum transmitting power is greater than the first maximum transmitting power;
• wherein the second transmitter transmits one or more signalings;
• or, transmits fourth information;
• wherein any signaling of the one or more signalings indicates a listening type and a power offset;
• for any signaling of the one or more signalings, if the listening type indicated by the any signaling is the same as the listening type indicated by the first information, the first power is related to the power offset indicated, otherwise, the first power is not related to the power offset indicated;
• the first target signal occupies a first resource element set, the fourth information is used for indicating first resource element set.