Non-line-of-sight (NLOS) coverage for millimeter wave communication
A system, in an active reflector device, adjusts a first amplification gain of each of a plurality of radio frequency (RF) signals received at a receiver front-end from a first equipment via a first radio path of an NLOS radio path. A first phase shift is performed on each of the plurality of RF signals with the adjusted first amplification gain. A combination of the plurality of first phase-shifted RF signals is split at a transmitter front-end. A second phase shift on each of the split first plurality of first phase-shifted RF signals is performed. A second amplification gain of each of the plurality of second phase-shifted RF signals is adjusted.
1. A system, comprising:
a first plurality of circuits in a receiver front-end of a reflector device, wherein the reflector device is at a distance from a physical obstructing object at a line-of-sight radio path between a first equipment and a second equipment, wherein the first plurality of circuits are configured to:
adjust a first amplification gain of each radio frequency (RF) signal of a plurality of RF signals received from the first equipment via a first radio path of a non-line-of-sight (NLOS) radio path,
determine a plurality of first phase-shifted RF signals that corresponds to a first phase shift on each RF signal of the plurality of RF signals with the adjusted first amplification gain, and
communicate a combination of the plurality of first phase-shifted RF signals to a second plurality of circuits, wherein:
the second plurality of circuits are configured to:
determine a plurality of second phase-shifted RF signals that corresponds to a second phase shift on each first phase-shifted RF signal of the plurality of first phase-shifted RF signals; and
adjust a second amplification gain of each second phase-shifted RF signal of the plurality of second phase-shifted RF signals.
2. The system according to claim 1 ,
wherein the second plurality of circuits are further configured to split the combination of the plurality of first phase-shifted RF signals, and
wherein the second phase shift is on each first phase-shifted RF signal of the plurality of first phase-shifted RF signals based on the split of the combination of the plurality of first phase-shifted RF signals.
3. The system according to claim 1 ,
wherein the second plurality of circuits is in a transmitter front-end of the reflector device, and
wherein the second plurality of circuits are isolated from the first plurality of circuits in the receiver front-end.
4. The system according to claim 3 , wherein the receiver front-end of the reflector device is isolated from the transmitter front-end of the reflector device at a specified distance.
5. The system according to claim 1 , wherein the second plurality of circuits are further configured to transmit the plurality of RF signals with the adjusted second amplification gain as a directed beam to the second equipment via a second radio path of the NLOS radio path.
6. The system according to claim 1 , wherein the first plurality of circuits are further configured to create a baseband signal based on demodulation of the combination of the plurality of first phase-shifted RF signals.
7. The system according to claim 6 , wherein the system further comprises a third plurality of circuits configured to decompose variable amplitudes of the baseband signals into constant amplitude decomposed analog signals.
8. The system according to claim 7 , wherein the second plurality of circuits are further configured to create constant amplitude decomposed RF signals based on modulation and mix of the constant amplitude decomposed analog signals.
9. A system, comprising:
a radio frequency (RF) transmitter device configured to transmit a plurality of RF signals via a first radio signal path of a non-line-of-sight (NLOS) radio path;
a first equipment, wherein the first equipment is communicatively coupled to the RF transmitter device via the first radio signal path, and
wherein the first equipment is selected from a plurality of equipments based on a first set of criteria, wherein the first equipment is configured to:
receive the plurality of RF signals from the RF transmitter device via the first radio signal path; and
passively transmit the received plurality of RF signals via a second radio path of the NLOS radio path; and
a second equipment, wherein the second equipment is communicatively coupled to the first equipment over a second radio signal path, and
wherein the second equipment is selected from the plurality of equipments based on a second set of criteria, wherein the second equipment is configured to:
receive the plurality of RF signals transmitted by the first equipment; and
transmit a directed beam of RF signals via a third radio path of the NLOS radio path to an RF receiver device based on the received plurality of RF signals.
10. The system according to claim 9 , wherein the first equipment is a passive reflector device at an incident angle with respect to the RF transmitter device,
wherein the second equipment is an active reflector device, and
wherein the first equipment and the second equipment are selected by the RF transmitter device.
11. The system according to claim 10 , wherein a size of the first equipment is based on at least one of the incident angle, a scanning angle, or a distance between the first equipment and the RF transmitter device.
12. The system according to claim 9 , wherein the first equipment is at first distance from a first physical obstructing object and the second equipment is at a second distance from a second physical obstructing object, and
wherein the first physical obstructing object is a completely obstructing object and the second physical obstructing object is a partially obstructing object.
13. The system according to claim 12 , wherein the first set of criteria corresponds to one of a location of the first equipment, a relative distance of the first equipment with respect to the RF transmitter device, a type of the first physical obstructing object, or a passive reflection of the received plurality of RF signals.
14. The system according to claim 12 , wherein the second set of criteria corresponds to one of a location of the second equipment, a relative distance of the second equipment with respect to the RF transmitter device, the RF receiver device and the first equipment, a type of the second physical obstructing object, or an active reflection of the received plurality of RF signals.
15. The system according to claim 9 , wherein the second equipment is further configured to at least one of adjust an amplitude gain, adjust phase shift, generate the directed beam based on beam forming operation, or beam steering operation on the received plurality of RF signals.
16. The system according to claim 9 , wherein the RF transmitter device is further configured to coordinate communication of configuration information to configure the second equipment or reconfigure the second equipment.
17. A non-transitory computer-readable medium having stored thereon, computer executable instruction that when executed by a computer, cause the computer to execute operations, the operations comprising:
in a reflector device:
adjusting a first amplification gain of each radio frequency (RF) signal of a plurality of RF signals received from a first equipment via a first radio path of a non-line-of-sight radio path;
determining a plurality of first phase-shifted RF signals that corresponds to a first phase shift on each of the plurality of RF signals with the adjusted first amplification gain;
communicating a combination of the plurality of first phase-shifted RF signals to a second plurality of circuits;
determining a plurality of second phase-shifted RF signals that corresponds to a second phase shift on each first phase-shifted RF signal of the plurality of first phase-shifted RF signals; and
adjusting a second amplification gain of each second phase-shifted RF signal of the plurality of second phase-shifted RF signals.