Distributed multi-antenna collaborative phase stabilization method and apparatus for future broadband wireless communication

A distributed multi-antenna collaborative phase stabilization device for future broadband wireless communication, comprising a plurality of antenna terminals and a central station;

• the central station and each of the plurality of antenna terminals are interconnected through an optical fiber;
• the central station is configured to receive optical signals uploaded by the antenna terminals and demultiplex the optical signals through wavelength division multiplexing to obtain original received signals fri;
• the central station is configured to sequentially send jitter measurement signals to each antenna terminal for delay jitter measurement and obtain delay compensation values, and then to broadcast a control command to the antenna terminals to complete a phase stabilization operation;
• the antenna terminals are configured to modulate the original received signals fri into optical carriers λi with different wavelengths through optoelectronic modulation;
• the optical signals from the plurality of antenna terminals are coupled into the optical fiber through wavelength division multiplexing and transmitted to the central station;
• the antenna terminal i is capable of reflecting the jitter measurement signal back to the central station to complete the delay jitter measurement between the central station and antenna terminal i;
• the antenna terminal i is capable of receiving the control command from the central station to perform delay compensation for the optical fiber between the central station and antenna terminal i.