Devices, methods and computer program products for beam ranking for positioning purposes are disclosed. A network node device transmits to a client device a beam ranking indication comprising beam specific first reference data and beam ranking criteria for positioning for downlink transmission beams between the network node device and the client device. In response to a received downlink transmission beam selection indication indicating a downlink transmission beam selected by the client device based on the transmitted beam ranking indication, the network node device transmits second reference data to the client device with at least one downlink transmission beam according to the received downlink transmission beam selection indication.