Method and device in communication node used for wireless communication

A second communication node for wireless communications, comprising:

• a second transmitter, transmitting first information and second information;
• and
• a second receiver, receiving a first radio signal, an SCS of a subcarrier occupied by the first radio signal in frequency domain being equal to a first SCS;
• wherein a sum of a first timing adjustment and a second timing adjustment is used to determine a transmission timing for the first radio signal, and the first timing adjustment is used to determine a transmission timing for a radio signal transmitted earlier than the first radio signal;
• the second timing adjustment is equal to a sum of a first sub-adjustment and a second sub-adjustment, the first information is used to determine the first sub-adjustment, and the second information is used to determine the second sub-adjustment;
• for the first SCS, an absolute value of the first sub-adjustment is equal to a time length of one or multiple multicarrier symbols, and a minimum step-size corresponding to the second sub-adjustment is less than a time length of one multicarrier symbol.

A method in a first communication node for wireless communications, comprising:

• receiving first information and second information;
• and
• transmitting a first radio signal, an SCS of a subcarrier occupied by the first radio signal in frequency domain being equal to a first SCS;
• wherein a sum of a first timing adjustment and a second timing adjustment is used to determine a transmission timing for the first radio signal, and the first timing adjustment is used to determine a transmission timing for a radio signal transmitted earlier than the first radio signal;
• the second timing adjustment is equal to a sum of a first sub-adjustment and a second sub-adjustment, the first information is used to determine the first sub-adjustment, and the second information is used to determine the second sub-adjustment;
• for the first SCS, an absolute value of the first sub-adjustment is equal to a time length of one or multiple multicarrier symbols, and a minimum step-size corresponding to the second sub-adjustment is less than a time length of one multicarrier symbol.