Patent ID: 9596070
Date: 2017-03-14
CPC Classifications: H04L,H04W

Claim:
1. A user equipment (UE) for a cellular communication network configured to communicate in a duplex mode with a network node of the cellular communication network, transmitting data to the network node in an up-link (UL) duplex resource, and receiving data from the network node in a down-link (DL) duplex resource; wherein the UE is further capable of direct device-to-device (D2D) communication with an other UE of the cellular communication network using the UL duplex resource; and the UE comprises a transceiver configured to, as part of a D2D control procedure: receive, from the network node, a grant to listen to a transmission in the UL duplex resource from the other UE to the network node; in response to receiving said grant, listen to said transmission in the UL duplex resource from the other UE; and determine a quality metric of said transmission from the other UE as received by the transceiver of the UE.