A method and device for angular positioning

A method, performed by a network node, the method comprising:

• transmitting, to a wireless device, control signalling indicating to the wireless device that, upon receiving a downlink signal from the network node, the wireless device is to respond by transmitting an uplink signal;
• wherein the downlink signal comprises a first downlink polarisation and a second downlink polarisation, and the uplink signal comprises a first uplink polarisation and a second uplink polarisation;
• wherein the downlink signal has a measured downlink characteristic, the measured downlink characteristic comprising a downlink amplitude ratio between the amplitude of the downlink signal in the first downlink polarisation and the amplitude of the downlink signal in the second downlink polarisation, and the measured downlink characteristic comprising a downlink phase difference between the phase of the downlink signal in the first downlink polarisation and the phase of the downlink signal in the second downlink polarisation;
• wherein the uplink signal has a transmitted uplink characteristic, the transmitted uplink characteristic comprising an uplink amplitude ratio between the amplitude of the uplink signal in the first uplink polarisation and the amplitude of the uplink signal in the second uplink polarisation, and the transmitted uplink characteristic comprising an uplink phase difference between the phase of the uplink signal in the first uplink polarisation and the phase of the uplink signal in the second uplink polarisation;
• wherein the transmitted uplink characteristic is the same as the measured downlink characteristic.