Hyper-precise positioning and communications system and network
View Patent ↗A hyper-precise positioning and communications (HPPC) system and network are provided. The HPPC system is a next-generation positioning technology that promises a low-cost, high-performance solution to the need for more sophisticated positioning technologies in increasingly cluttered environments. The HPPC system is a joint positioning-communications radio technology that simultaneously performs relative positioning and secure communications. Both of these tasks are performed with a single, co-use waveform, which efficiently utilizes limited resources and supports higher user densities. Aspects of this disclosure include an HPPC system for a network which includes an arbitrary number of network nodes (e.g., radio frequency (RF) devices communicating over a joint positions-communications waveform). As such, networking protocols and design of data link and physical layers are described herein. An exemplary embodiment extends the HPPC system for use with existing cellular networks, such as third generation partnership project (3GPP) long term evolution (LTE) and fifth generation (5G) networks.
1. A method for receiving and processing joint positioning and communications, the method comprising:
receiving a first signal comprising a joint positioning-communications waveform from a network node, the joint positioning-communications waveform comprising:
a preamble;
a data payload, wherein the data payload of the first signal comprises a first position state of the network node;
a first positioning sequence; and
a second positioning sequence; and
estimating a second position state relative to the network node from the first signal.
2. The method of claim 1 , wherein the second position state is estimated based on the first positioning sequence and the second positioning sequence.
3. The method of claim 2 , wherein the second position state is further estimated based on the first position state.
4. The method of claim 2 , wherein:
the joint positioning-communications waveform further comprises:
a third positioning sequence; and
a fourth positioning sequence; and
the second position state is further estimated based on the third positioning sequence and the fourth positioning sequence.
5. The method of claim 1 , wherein:
receiving the first signal comprises receiving the first signal at each of a plurality of antennas; and
estimating the second position state comprises using estimating a time of flight from the network node to each of the plurality of antennas using the first positioning sequence and the second positioning sequence.
6. The method of claim 1 , wherein the first positioning sequence is received simultaneously with the second positioning sequence.
7. The method of claim 1 , wherein the second positioning sequence is received sequentially after the first positioning sequence.
8. The method of claim 1 , wherein the joint positioning-communications waveform further comprises:
a first post-amble sequenced between the data payload and the first positioning sequence; and
a second post-amble sequenced after the second positioning sequence.
9. The method of claim 1 , further comprising transmitting a second signal comprising the joint positioning-communications waveform in which the data payload comprises the second position state.
10. The method of claim 9 , wherein transmitting the second signal comprises:
transmitting the first positioning sequence from a first antenna; and
transmitting the second positioning sequence from a second antenna.
11. The method of claim 10 , wherein transmitting the second signal further comprises transmitting the preamble and the data payload from the first antenna.
12. The method of claim 10 , wherein the first positioning sequence is transmitted simultaneously with the second positioning sequence.
13. The method of claim 10 , wherein the second positioning sequence is transmitted sequentially after the first positioning sequence.
14. The method of claim 10 , wherein transmitting the second signal comprising the joint positioning-communications waveform further comprises:
transmitting a third positioning sequence from a third antenna; and
transmitting a fourth positioning sequence from a fourth antenna.
15. The method of claim 10 , wherein the joint positioning-communications waveform further comprises:
a first post-amble sequenced between the data payload and the first positioning sequence; and
a second post-amble sequenced after the second positioning sequence.
16. The method of claim 9 , wherein the data payload of the second signal comprises additional information.
17. The method of claim 16 , wherein the additional information comprises inertial information received from at least one of an inertial navigation unit, an accelerometer, a gyroscope, a global positioning system (GPS) device, or a camera.
18. The method of claim 17 , wherein the additional information comprises at least one of distributed coherence information or beamforming information based on the second position state.
19. A network for joint positioning and communications, the network comprising:
a first network node, comprising:
a first signal transceiver configured to communicate wirelessly with a second network node; and
a first signal processor operable to:
estimate a first position state of the first network node relative to the second network node;
generate a joint positioning-communications waveform comprising:
a preamble;
a data payload;
a first positioning sequence; and
a second positioning sequence; and
cause the first signal transceiver to transmit a first signal comprising the joint positioning-communications waveform, wherein the data payload of the first signal comprises the first position state.
20. The network of claim 19 , further comprising:
the second network node, comprising:
a second signal transceiver configured to communicate wirelessly with the first network node; and
a second signal processor operable to:
receive the first signal from the first network node;
estimate a second position state of the second network node relative to the first network node from the first signal; and
cause the second signal transceiver to transmit a second signal comprising the joint positioning-communications waveform, wherein the data payload of the second signal comprises the second position state.