Apparatus, measurement system and measurement setup and methods for testing an apparatus

A measurement system comprising:

• a measurement interface configured for communicating with an apparatus configured for performing wireless communication in a wireless communications network, so as to control the apparatus during a test procedure of the measurement system;
• a signal generator configured for generating a locking signal indicating a request for locking a beam pattern and at least one communication parameter of the wireless communication in the wireless communications network;
• and
• a transmission interface configured for transmitting the locking signal to the apparatus,
• wherein the measurement system is configured for iteratively in at least a first and a second iteration:
• locking the beam pattern and the at least one communication parameter of the apparatus;
• determining a characteristic of the apparatus after having locked the beam pattern and the at least one communication parameter, the characteristic being dependent on the at least one communication parameter;
• and
• unlocking the beam pattern and the at least one communication parameter.

A method for testing an apparatus, the method comprising:

• transmitting, to the apparatus, a locking signal indicating a request for locking at least a part of a beam pattern formed by the apparatus and at least one communication parameter of the apparatus;
• and
• locking the part of the beam pattern and the at least one communication parameter responsive to the locking signal, and at least one of:
• wherein the beam pattern comprises at least one beam, wherein the method comprises controlling a direction along which the at least one beam is emitted relative from a wireless interface, wherein, for locking at least the part of the beam pattern, the direction is maintained;
• and/or wherein the beam pattern comprises at least a null formed in a specific direction, wherein the method comprises controlling a direction along which the null is formed from the wireless interface, wherein, for locking at least the part of the beam pattern, the direction is maintained;
• forming the beam pattern with the wireless interface, the beam pattern comprising at least a first lobe, a second lobe and a null, and locking at least one of the first lobe, the second lobe and the null whilst remaining at least one of the first lobe, the second lobe and the null unlocked;
• and
• wherein the beam pattern comprises a plurality of lobes and/or a plurality of nulls between the plurality of lobes, wherein the method comprises time variably deactivating at least a first lobe of the plurality of lobes or a first null of the plurality of nulls during a first time interval and deactivating at least a second lobe of the plurality of lobes or a second null of the plurality of nulls during a second time interval responsive to the locking signal.