Method and device in nodes used for wireless communication

A second node for wireless communications, comprising:

• a first receiver, receiving a target signaling;
• a second receiver, receiving a first signaling and a second signaling;
• and
• a third transceiver, receiving a first signal in a first radio resource set;
• wherein the target signaling is used to determine a target reference signal;
• the first signaling and the second signaling are respectively used to indicate a first radio resource pool and a second radio resource pool;
• the first radio resource pool comprises M1 multicarrier symbols, any of the M1 multicarrier symbols being of a first type;
• the second radio resource pool comprises M2 multicarrier symbols, there is at least one multicarrier symbol among the M2 multicarrier symbols being of a type other than the first type;
• when the first radio resource set belongs to the first radio resource pool, the first signal is associated with a first reference signal;
• when the first radio resource set belongs to the second radio resource pool, the first signal is associated with a target reference signal, the target reference signal being unrelated to the first reference signal;
• the first signal is transmitted in sidelink;
• M1 and M2 are both positive integers greater than 1.

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

• transmitting a target signaling;
• transmitting a first signaling and a second signaling;
• and
• transmitting a first signal in a first radio resource set;
• wherein the target signaling is used to determine a target reference signal;
• the first signaling and the second signaling are respectively used to indicate a first radio resource pool and a second radio resource pool;
• the first radio resource pool comprises M1 multicarrier symbols, any of the M1 multicarrier symbols being of a first type;
• the second radio resource pool comprises M2 multicarrier symbols, there is at least one multicarrier symbol among the M2 multicarrier symbols being of a type other than the first type;
• when the first radio resource set belongs to the first radio resource pool, the first signal is associated with a first reference signal;
• when the first radio resource set belongs to the second radio resource pool, the first signal is associated with a target reference signal, the target reference signal being unrelated to the first reference signal;
• the first signal is transmitted in sidelink;
• M1 and M2 are both positive integers greater than 1.

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

• receiving a target signaling;
• receiving a first signaling and a second signaling;
• and
• receiving a first signal in a first radio resource set;
• wherein the target signaling is used to determine a target reference signal;
• the first signaling and the second signaling are respectively used to indicate a first radio resource pool and a second radio resource pool;
• the first radio resource pool comprises M1 multicarrier symbols, any of the M1 multicarrier symbols being of a first type;
• the second radio resource pool comprises M2 multicarrier symbols, there is at least one multicarrier symbol among the M2 multicarrier symbols being of a type other than the first type;
• when the first radio resource set belongs to the first radio resource pool, the first signal is associated with a first reference signal;
• when the first radio resource set belongs to the second radio resource pool, the first signal is associated with a target reference signal, the target reference signal being unrelated to the first reference signal;
• the first signal is transmitted in sidelink;
• M1 and M2 are both positive integers greater than 1.