| 摘要 |
Macrocell communication resources 121 are used to exchange signals between a base station 102 and at least one wireless communication device 104, 106 to establish a device-to-device (D2D) communication link 122 between a first wireless communication device 104 and a second wireless communication device 106. A call, or other communication session, may be initiated by the first wireless communication device by sending a D2D call initiation message over uplink macrocell communication resources to the core network of a cellular communication system. The first wireless communication device may also transmit D2D link information regarding the wireless D2D communication link between the wireless communication devices. The core network sends D2D link establishment information over macrocell downlink communication resources to at least one of the wireless communication devices where the link establishment information allows the wireless communication devices to establish and communication over the D2D communication link. |
