Method and device used for positioning

A second node for wireless communications, characterized in comprising:

• a third receiver, receiving first configuration information;
• a fourth receiver, receiving a first signaling;
• and
• a second transmitter, transmitting a first candidate signal on a first candidate time-domain resource block;
• the second transmitter, transmitting a second positioning reference signal;
• wherein the first configuration information is used for indicating a first time-domain resource group, the first time-domain resource group comprising at least one time-domain resource block;
• the first signaling is used to determine whether the first candidate time-domain resource block belongs to the first time-domain resource group;
• a transmission timing of the first candidate signal is used to determine a transmission timing of the second positioning reference signal.

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

• receiving first configuration information;
• receiving a first candidate signal on a first candidate time-domain resource block;
• and
• transmitting a first positioning reference signal;
• wherein the first configuration information is used to indicate a first time-domain resource group, the first time-domain resource group comprising at least one time-domain resource block;
• a measurement result of the first candidate signal is greater than a first threshold;
• whether the first candidate time-domain resource block belongs to the first time-domain resource group is used to determine whether a transmitter of the first candidate signal is selected as a synchronization reference for the first positioning reference signal.