Listen-before-talk for discovery signal in license-assisted access lte

A user equipment, UE, operating in a telecommunications system, the UE comprising:

• a transceiver configured to provide radio communications with a network node of the telecommunications system;
• and
• a processor coupled to the transceiver, wherein the processor is configured to,
• determine whether a discovery signal was received from the network node through the transceiver based on detection of another signal received from the network node;
• based on detecting that the another signal was received, determine whether a grant is present based on processing an Evolved Physical Downlink Control CHannel, ePDCCH;
• and
• based on determining that a grant is present, decode a Physical Downlink Shared Channel, PDSCH, using the ePDCCH and the discovery signal.

A user equipment, UE, operating in a telecommunications system, wherein the UE is adapted to:

• determine whether a discovery signal was received from the network node through the transceiver based on detection of another signal received from the network node;
• based on detecting that the another signal was received, determine whether a grant is present based on processing an Evolved Physical Downlink Control CHannel, ePDCCH;
• and
• based on determining that a grant is present, decode a Physical Downlink Shared Channel, PDSCH, using the ePDCCH, and the discovery signal.