Focusing pulsed signal transmissions in multipath wireless power delivery environments
Techniques are described herein for enabling, among other features, more effective wireless charging of devices in wireless power delivery environments through enhanced signal focusing over multiple paths in a multipath wireless power delivery environment. More specifically, the systems and methods discussed herein describe techniques for increasing effective charging of devices, including enhanced ability to focus charging utilizing multiple pathways, phase detection of incoming signals allowing for movement detection in a wireless environment, phase synchronization, and directional arrays.
1. A method comprising:
receiving, by an antenna, an incoming signal transmitted from a client device over a first path and at least a second path in a multipath wireless environment,
wherein the incoming signal is received via the first path and the at least a second path with differing phases and arrival times;
identifying phase and timing information corresponding to the incoming signal received by the antenna via the first path and the at least a second path;
determining transmission settings for the antenna based on the phase and timing information to facilitate inversing the timing information for transmission of a sequence of response signals from the antenna to, and focused on, the client device over a reverse of the first path and the at least a second path; and
transmitting, by the antenna and according to the transmission settings, the sequence of response signals to the client device over the reverse of the first path and the at least a second path for simultaneous reception of the sequence of response signals by the client device.
2. The method of claim 1 further comprising calculating respective lengths of the first path and the at least a second path.
3. The method of claim 2 further comprising identifying a location of the client device in the multipath wireless environment based on the calculating.
4. The method of claim 1 further comprising determining movement of the client device or other objects in the multipath wireless environment based on the phase information.
5. The method of claim 1 further comprising monitoring a received signal strength for the sequence of response signals received by the client device.
6. A transceiver comprising:
an antenna configured to receive an incoming signal transmitted from a client device over a first and at least a second path in a multipath wireless environment,
wherein the antenna is capable of receiving the incoming signal via the first path and the at least a second path with differing phases and arrival times; and
control circuitry configured to:
identify timing information corresponding to the incoming signal received via the first and the at least a second path;
determine transmission settings based on the timing information to facilitate inversing the timing information for simultaneous reception of a sequence of response signals by, and focused on, the client device over a reverse of the first path and the at least a second path; and
cause the antenna to transmit, according to the transmission settings, the sequence of response signals to the client device over the reverse of the first path and the at least a second path.
7. The transceiver of claim 6 , wherein the control circuitry is further configured to identify phase information corresponding to the incoming signal received via the first path and the at least a second path.
8. The transceiver of claim 7 , wherein to determine transmission settings, the control circuitry is further configured to determine the transmission settings further based on the phase information to facilitate in-phase reception of the sequence of response signals by, and focused on, the client device.
9. The transceiver of claim 6 , wherein the control circuitry is further configured to calculate respective lengths of the first path and the at least a second path.
10. The transceiver of claim 9 , wherein the control circuitry is further configured to identify a location of the client device in the multipath wireless environment based on the respective lengths.
11. The transceiver of claim 6 , wherein the control circuitry is further configured to determine movement of the client device or other objects in the multipath wireless environment based on the timing information.
12. The transceiver of claim 6 further comprising means for monitoring a received signal strength for the sequence of response signals received by the client device.
13. One or more non-transitory computer readable storage media having instruction code stored thereon which when executed by one or more processors causes a machine to:
receive, by an antenna, an incoming signal transmitted from a client device over a first path and at least a second path in a multipath wireless environment,
wherein the incoming signal is received via the first path and the at least a second path with differing phases and arrival times;
identify phase and timing information corresponding to the incoming signal received by the antenna via the first path and the at least a second path;
determine transmission settings for the antenna based on the phase and timing information to facilitate inversing the timing information for transmission of a sequence of response signals from the antenna to, and focused on, the client device over a reverse of the first path and the at least a second path; and
direct the antenna to transmit, according to the transmission settings, the sequence of response signals to the client device over the reverse of the first path and the at least a second path for simultaneous reception of the sequence of response signals by the client device.
14. The one or more non-transitory computer readable storage media of claim 13 , wherein when executed by the one or more processors to determine transmission settings, the instruction code further causes the machine to calculate respective lengths of the first path and the at least a second path.
15. The one or more non-transitory computer readable storage media of claim 14 , wherein when executed by the one or more processors, the instruction code further causes the machine to identify a location of the client device in the multipath wireless environment based on the respective lengths.
16. The one or more non-transitory computer readable storage media of claim 13 , wherein when executed by the one or more processors, the instruction code further causes the machine to determine movement of the client device or other objects in the multipath wireless environment based on the phase information.