Device discovery of second user equipments in a second network for D2D communication

A first network node for handling device discovery of second user equipments in a second network for Device to Device, D2D, communication, wherein the first network node is comprised in a first network, the first network node comprising a processing circuit configured to:

• obtain from a second network node within the second network, information about resources for sending device discovery beacon signals in a second network, and
• send to a first user equipment within the first network and served by the first network node, the obtained information about resources for sending device discovery beacon signals in the second network, which information enables the first user equipment to discover beacon signals from the second user equipments in the second network, and/or to send beacon signals to be discovered by the second user equipments in the second network,
• wherein a first operator operates the first network and a second operator, different from the first operator, operates the second network.

A first user equipment for handling device discovery of second user equipments in a second network for Device to Device, D2D, communication, wherein the first user equipment is within a first network and served by a first network node comprised in the first network, the first user equipment comprising a processing circuit configured to:

• receive from the first network node, information received by the first network node from a second network node in the second network about resources for sending device discovery beacon signals in the second network, and
• listen to beacon signals according to the received information to discover beacon signals from the second user equipments in the second network, or send beacon signals according to the received information to be discovered by the second user equipments in the second network,
• wherein a first operator operates the first network and a second operator, different from the first operator, operates the second network.