Network device for use in a wireless communication network and an end-to-end over-the-air test and measurment system for one or more network devices

The network device of 1, wherein the network device is configured to control an operation and/or a configuration of the another network device by means of the one or more control signals transmitted to the another network device via the control channel.

A network device for use within a wireless communication network,

• wherein the network device is configured to receive from another network device via a control channel one or more control signals for configuring the network device for a characterization of at least one of the network device and the another network device and/or for a characterization of one or more communication channels between the network device and the another network device.

An Over-the-Air Test and Measurement System for one or more network devices within a wireless communication network, the Over-the-Air Test and Measurement System comprising

• at least a first network device and at least a second network device,
• wherein the Over-the-Air Test and Measurement System is configured to provide a control channel between the first and the second network devices,
• and wherein at least the first network device is configured to transmit one or more control signals for controlling operation of a network device via said control channel to the second network device and/or to receive one or more control signals for controlling operation of a network device via said control channel from the second network device.