Method and device in nodes used for wireless communication

A second node for wireless communications, comprising:

• a third transmitter, transmitting first information, the first information being used to determine X candidate formats, X being a positive integer greater than 1;
• a second receiver, detecting a first signal, the first signal using a first format;
• and
• a third receiver, detecting a second signal, the second signal using a second format;
• wherein the first format is a candidate format among the X candidate formats, and the second format is a candidate format among the X candidate formats, the first format is different from the second format;
• a first timing offset value is used to determine a transmission timing for the first signal, and a second timing offset value is used to determine a transmission timing for the second signal, the first timing offset value is unequal to the second timing offset value;
• the first format is related to the first timing offset value, while the second format is related to the second timing offset value;
• the first signal and the second signal are both used for random access;
• capabilities of a transmitter for the first signal are used to determine the first timing offset, the first timing offset being used to determine the first format out of the X candidate formats.

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

• receiving first information, the first information being used to determine X candidate formats, X being a positive integer greater than 1;
• transmitting a first signal, the first signal using a first format;
• and
• transmitting a second signal, the second signal using a second format;
• wherein the first format is a candidate format among the X candidate formats, and the second format is a candidate format among the X candidate formats, the first format is different from the second format;
• a first timing offset value is used to determine a transmission timing for the first signal, and a second timing offset value is used to determine a transmission timing for the second signal, the first timing offset value is unequal to the second timing offset value;
• the first format is related to the first timing offset value, while the second format is related to the second timing offset value;
• the first signal and the second signal are both used for random access;
• capabilities of the first node are used to determine the first timing offset, the first timing offset being used to determine the first format out of the X candidate formats.