Phase control device for continuous beam scanning in effective scan range and method therefor
The present specification provides a method for transmitting at least one beam, performed by a device, in a wireless communication system, in which the at least one beam is transmitted to another device and a measurement result of the at least one beam is received from the another device, wherein the at least one beam is a beam generated on the basis of a laser signal being incident on the metasurface, the laser signal passing through a phase controller or a delay controller before being incident on the metasurface.
1. A method for transmitting at least one signal in a wireless communication system, the method performed by an apparatus and comprising:
connecting with access and mobility management function (AMF),
wherein the apparatus connects with the AMF via NG control plane (NG-C) interface;
connecting with user plane function (UPF),
wherein the apparatus connects with the UPF via NG user plane (NG-U) interface;
transmitting the at least one signal to another apparatus; and
receiving information for a measurement result of the at least one signal from the another apparatus,
wherein the at least one signal is a signal generated based on a reference signal being incident on a metasurface.
2. The method of claim 1 , wherein the reference signal passes through a phase controller or a delay controller before being incident on the metasurface.
3. The method of claim 1 , wherein the reference signal is generated by a laser source of the apparatus, and
wherein the apparatus includes the laser source, the metasurface, the phase controller or the delay controller.
4. The method of claim 1 , wherein the phase controller:
divides the reference signal into N signals based on a 1:N coupler,
wherein N is a natural number;
based on N filters, selects N components corresponding to frequencies of each of the N filters from each of the N signals;
phase-shifts each of the N components; and
synthesizes the phase-shifted N components into one signal based on an N:1 coupler.
5. The method of claim 4 , wherein a magnitude of the reference signal is N times greater than a magnitude of the synthesized one signal.
6. The method of claim 4 , wherein the one signal is incident on the metasurface.
7. The method of claim 1 , wherein the phase controller:
divides the reference signal into N components having different frequencies based on an arrayed waveguide grating (AWG),
wherein the N is a natural number;
phase-shifts each of the N components;
synthesizes the phase-shifted N components into one signal based on an N:1 coupler.
8. The method of claim 7 , wherein the one signal is incident on the metasurface.
9. The method of claim 1 , wherein the delay controller:
divides the reference signal into N signals based on a 1:N coupler,
wherein the N is a natural number;
phase-shifts each of the N signals based on N delay values;
synthesizes the phase-shifted N signals into one signal based on an N:1 coupler.
10. The method of claim 9 , wherein the one signal is incident on the metasurface.
11. The method of claim 1 , wherein a signal tracking time is previously shared between the apparatus and the another apparatus.
12. An apparatus, comprising:
a transceiver;
at least one memory; and
at least one processor operably coupled with the at least one memory and the transceiver, wherein the at least one processor is configured to:
connect with access and mobility management function (AMF),
wherein the apparatus connects with the AMF via NG control plane (NG-C) interface;
connect with user plane function (UPF),
wherein the apparatus connects with the UPF via NG user plane (NG-U) interface;
control the transceiver to transmit at least one signal to another apparatus; and
control the transceiver to receive information for a measurement result of the at least one signal from the another apparatus,
wherein the at least one signal is a signal generated based on a reference signal being incident on a metasurface.
13. An apparatus, comprising:
at least one memory; and
at least one processor operably coupled to the at least one memory, wherein the at least one processor is configured to:
connect with access and mobility management function (AMF),
wherein the apparatus connects with the AMF via NG control plane (NG-C) interface;
connect with user plane function (UPF),
wherein the apparatus connects with the UPF via NG user plane (NG-U) interface;
control a transceiver to transmit at least one signal to another apparatus; and
control the transceiver to receive information for a measurement result of the at least one signal from the another apparatus,
wherein the at least one signal is a signal generated based on a reference signal being incident on a metasurface.