Directional wireless power and wireless data communication
Methods and apparatus are disclosed of a wireless power transmission system (WPTS) and wireless power receiver client (WPRC). The WPTS may directionally transmit wireless power to a first WPRC while concurrently directionally transmitting wireless data to at least a second WRPC. The WPTS and WPRC may reuse circuitry configured to transmit/receive wireless power to also transmit/receive wireless data.
1. A wireless power receiver client (WPRC) comprising:
a wireless transmitter configured to transmit a first wireless beacon, wherein the first wireless beacon includes a first in-phase component and a first quadrature-phase component; and
a wireless receiver configured to receive wireless data from a wireless power transmission system (WPTS), wherein the wireless data is directionally focused at a location of the WPRC;
wherein the received wireless data is received as part of a sum transmission from the WPTS, wherein the sum transmission includes a sum in-phase component and a sum quadrature-phase component, wherein the sum in-phase component is based on a sum of an in-phase component of a complex conjugate of a second wireless beacon that is transmitted by a second WPRC and a scaled-down version of an in-phase component of a complex conjugate of the first wireless beacon, and wherein the sum quadrature-phase component is based on a sum of a quadrature-phase component of the complex conjugate of the second wireless beacon and a scaled-down version of a quadrature-phase component of the complex conjugate of the first wireless beacon.
2. The WPRC of claim 1 , wherein a wireless power directionally focused at a location of the second WPRC is received by the second WPRC simultaneously to the wireless data being received by the WPRC.
3. The WPRC of claim 2 , wherein the wireless power is received as part of the sum transmission based at least in part on the in-phase component of the complex conjugate of the second wireless beacon and the quadrature-phase component of the complex conjugate of the second wireless beacon.
4. The WPRC of claim 3 , wherein a power level of the wireless data directionally focused at the location of the WPRC is relatively lower than a power level of the wireless power directionally focused at the location of the second WPRC.
5. The WPRC of claim 1 , wherein the scaled-down version of the in-phase component of the complex conjugate of the first wireless beacon and the scaled-down version of the quadrature-phase component of the complex conjugate of the first wireless beacon are scaled-down by a selected amount.
6. The WPRC of claim 1 , wherein the sum transmission further includes other wireless data that is directionally focused at a location of a third WPRC.
7. The WPRC of claim 1 , wherein the first wireless beacon is a coded with at least one of a preamble, an identity of the WPTS, an identity of the WPRC, a session ID, a message type, or a payload.
8. A method performed by a wireless power receiver client (WPRC), the method comprising:
transmitting a first wireless beacon, wherein the first wireless beacon includes a first in-phase component and a first quadrature-phase component; and
receiving wireless data from a wireless power transmission system (WPTS), wherein the wireless data is directionally focused at a location of the WPRC;
wherein the received wireless data is received as part of a sum transmission from the WPTS, wherein the sum transmission includes a sum in-phase component and a sum quadrature-phase component, wherein the sum in-phase component is based on a sum of an in-phase component of a complex conjugate of a second wireless beacon that is transmitted by a second WPRC and a scaled-down version of an in-phase component of a complex conjugate of the first wireless beacon, and wherein the sum quadrature-phase component is based on a sum of a quadrature-phase component of the complex conjugate of the second wireless beacon and a scaled-down version of a quadrature-phase component of the complex conjugate of the first wireless beacon.
9. The method of claim 8 , wherein the receiving the wireless data is simultaneous to a wireless power directionally focused at a location of the second WPRC being received by the second WPRC.
10. The method of claim 9 , wherein the wireless power is received as part of the sum transmission based at least in part on the in-phase component of the complex conjugate of the second wireless beacon and the quadrature-phase component of the complex conjugate of the second wireless beacon.
11. The method of claim 10 , wherein a power level of the wireless data directionally focused at the location of the WPRC is relatively lower than a power level of the wireless power directionally focused at the location of the second WPRC.
12. The method of claim 8 , wherein the scaled-down version of the in-phase component of the complex conjugate of the first wireless beacon and the scaled-down version of the quadrature-phase component of the complex conjugate of the first wireless beacon are scaled-down by a selected amount.
13. The method of claim 8 , wherein the sum transmission further includes other wireless data that is directionally focused at a location of a third WPRC.
14. The method of claim 8 , wherein the first wireless beacon is a coded with at least one of a preamble, an identity of the WPTS, an identity of the WPRC, a session ID, a message type, or a payload.
15. A wireless power receiver client (WPRC) comprising:
a wireless transmitter configured to transmit a first wireless beacon, wherein the first wireless beacon includes a first in-phase component and a first quadrature-phase component; and
a wireless receiver configured to receive wireless power from a wireless power transmission system (WPTS), wherein the wireless power is directionally focused at a location of the WPRC;
wherein the received wireless power is received as part of a sum transmission from the WPTS, wherein the sum transmission includes a sum in-phase component and a sum quadrature-phase component, wherein the sum in-phase component is based on a sum of a scaled-down version in-phase component of a complex conjugate of a second wireless beacon that is transmitted by a second WPRC and an in-phase component of a complex conjugate of the first wireless beacon, and wherein the sum quadrature-phase component is based on a sum of a scaled-down version of a quadrature-phase component of the complex conjugate of the second wireless beacon and a quadrature-phase component of the complex conjugate of the first wireless beacon.
16. The WPRC of claim 15 , wherein the wireless power directionally focused at the location of the WPRC is received simultaneously to wireless data directionally focused at a location of the second WPRC being received by the second WPRC.
17. The WPRC of claim 16 , wherein the wireless data is part of the sum transmission based at least in part on the scaled-down version of the in-phase component of the complex conjugate of the second wireless beacon and the scaled-down version of the quadrature-phase component of the complex conjugate of the second wireless beacon.
18. The WPRC of claim 17 , wherein a power level of the wireless data directionally focused at the location of the second WPRC is relatively lower than a power level of the wireless power directionally focused at the location of the WPRC.
19. The WPRC of claim 15 , wherein the scaled-down version of the in-phase component of the complex conjugate of the second wireless beacon and the scaled-down version of the quadrature-phase component of the complex conjugate of the second wireless beacon are scaled-down by a selected amount.
20. The WPRC of claim 15 , wherein the sum transmission further includes other wireless data that is directionally focused at a location of a third WPRC.