Signaling for inter-cell d2d discovery in an lte network

A non-transitory computer readable storage device including instructions stored thereon, which when executed by one or more processors of a User Equipment (UE), cause the UE to perform operations to:

• decode signaling with discovery configuration information of a first cell, the discovery configuration information including a sidelink synchronization signal;
• decode signaling indicating a synchronization offset between the sidelink synchronization signal of the first cell and a sidelink synchronization signal of a second cell;
• and
• support inter-cell device-to-device (D2D) discovery by encoding for transmission to the second cell, the discovery configuration information of the first cell, based on the sidelink synchronization signal of the second cell acquired using the indicated synchronization offset.

An evolved Node-B (eNB), comprising:

• hardware processing circuitry configured to:
• support sidelink discovery by encoding signaling for transmission to a first user equipment (UE) within a first cell associated with the eNB, to indicate configuration information for a discovery resource pool that has been configured by a second cell, wherein the configuration information includes a timing offset between the first cell of the first UE and the second cell, the timing offset indicative of a difference in timing synchronization between the first cell and the second cell;
• and
• memory coupled to the hardware processing circuitry, the memory configured to store the timing offset.