Method and apparatus for performing neighbor discovery

A first wireless transmit/receive unit (WTRU) for neighbor discovery, the WTRU comprising:

• a processor configured to generate a primary synchronization signal and a secondary synchronization signal, wherein collectively the primary synchronization signal and the secondary synchronization signal indicate an identification for device-to-device communication with the first WTRU;
• the processor configured to generate a discovery signal;
• and
• the processor operatively coupled to a transceiver, the processor and the transceiver configured to transmit the primary synchronization signal, the secondary synchronization signal and the discovery signal.

A first wireless transmit/receive unit (WTRU) for neighbor discovery, the WTRU comprising:

• a transceiver configured to receive a primary synchronization signal and a secondary synchronization signal from a second WTRU;
• a processor operatively coupled to the transceiver, the processor configured to determine whether to associate with the second WTRU for device-to-device communications;
• the transceiver configured to receive a discovery signal from the second WTRU;
• the processor configured to generate a discovery report based on the received discovery signal;
• and
• the processor and the transceiver configured to transmit the discovery report to a base station.