Method and device in UE and base station used for wireless communication

A User Equipment (UE) for wireless communication, comprising:

• a first processing module, to receive a first signaling and a second radio signal;
• a second processing module, to transmit a first radio signal on a sidelink;
• wherein:
• the first signaling is correlated to a first synchronization sequence, the first signaling indicates a first feature identity and a second identity, and a first signature sequence is used for generating the first radio signal, a second synchronization sequence corresponds to the second identity;
• the first synchronization sequence corresponds to a first identity, the first identity differs from the second identity;
• the first identity is a Physical Cell Identifier and the second identity is a Physical Cell Identifier;
• the first radio signal is transmitted on a first time-frequency resource set, and the first signaling explicitly indicates the first time-frequency resource set;
• the first signaling is Radio Resource Control signalling;
• the first feature identity is a Sidelink Synchronization Sequence Identity;
• the first feature identity is used for generating the first signature sequence;
• the receiving timing of the second radio signal is used for determining the transmitting timing of the first radio signal;
• the second radio signal is associated with the second synchronization sequence, the first synchronization sequence differs from the second synchronization sequence;
• a transmitter of the first signaling corresponds to a first node, and a transmitter of the second radio signal corresponds to a second node;
• and
• the first node is a serving cell corresponding to the UE, the second node is a neighbor cell of the serving cell corresponding to the UE.