Method and device in a node used for wireless communication

A first-type communication node used for wireless communication, comprising:

• a first measurer, performing X measurements respectively in X time-frequency units, the X measurements respectively being used for acquiring X first-type measurement values, the X being a positive integer;
• a second measurer, performing a first measurement, the first measurement being used for acquiring a second-type measurement value;
• and
• a first transceiver, transmitting a first radio signal;
• wherein the X first-type measurement values are used for the first measurement, a second-type measurement value acquired by performing the first measurement is used for determining at least one of an MCS employed by the first radio signal or time-frequency resources occupied by the first radio signal;
• a number of time-frequency resources occupied by a time-frequency unit of the X time-frequency units is related to a subcarrier spacing of subcarriers occupied by the first radio signal;
• wherein:
• a characteristic measurement value is a first-type measurement value of the X first-type measurement values;
• a measurement of the X measurements used for acquiring the characteristic measurement value is performed in a characteristic time-frequency unit;
• the characteristic time-frequency unit is a time-frequency unit of the X time-frequency units;
• the characteristic time-frequency unit comprises X2 multicarrier symbols in time domain;
• and
• the characteristic measurement value is an average value of receiving power values of the X2 multicarrier symbols within frequency domain resources occupied by the characteristic time-frequency unit;
• any of the X time-frequency units occupies a sub-channel in frequency domain and occupies a positive integer number of consecutive multicarrier symbols in time domain;
• any two of the X time-frequency units comprise equal numbers of time-frequency resources, the X is greater than 1;
• each of the X time-frequency units comprises X2 multicarrier symbols which can be used for one of the X measurements in time domain;
• the characteristic time-frequency unit comprises a multicarrier other than the X2 multicarrier symbols in time domain.