IP Library Granted Patent US 10,772,067
Granted Patent B2
US 10,772,067 · App. 16/277,736 · Granted Sep 8, 2020

Systems and methods for precise radio frequency localization of a wireless arbitrary device

Inventor: Arnold Mark Bilstad (Los Altos, CA)
Assignee: Locix, Inc.
H04W64/003G01S5/0289G01S11/08H04W56/002H04W56/0055
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Quick Facts
Patent No.
US 10,772,067
App. No.
16/277,736
Granted
Sep 8, 2020
Kind
B2
Abstract

Systems and apparatuses for determining location of a wireless arbitrary device are disclosed herein. In one example, a computer implemented method for localization of a wireless arbitrary device in a wireless network architecture comprises initializing the wireless network architecture having a plurality of wireless anchor nodes and a plurality of wireless sensor nodes. The method further includes preparing, with the plurality of wireless anchor nodes, for localization of the wireless arbitrary device, waiting to receive a packet from the wireless arbitrary device, receiving a communication including a packet from the wireless arbitrary device, and transmitting a communication including a synchronization packet to other anchor nodes of the plurality of wireless anchor nodes.

Claims (24)

1. A computer implemented method for localization of a wireless arbitrary device in a wireless network architecture, comprising:

initializing the wireless network architecture having a plurality of wireless anchor nodes and a plurality of wireless sensor nodes;

preparing, with the plurality of wireless anchor nodes, for localization of the wireless arbitrary device;

waiting, with at least one anchor node, to receive a packet from the wireless arbitrary device;

receiving, with the at least one anchor node, a communication including a packet from the wireless arbitrary device; and

transmitting, with the at least one anchor node, a communication including a synchronization packet to other anchor nodes of the plurality of wireless anchor nodes to synchronize the anchor nodes with respect to each other in response to the at least one anchor node receiving the communication from the wireless arbitrary device.

2. The computer implemented method of claim 1 , further comprising:

obtaining, with the at least one wireless anchor node, ranging information including a receive timestamp and channel sense information (CSI) from the received communication including the packet from the wireless arbitrary device.

3. The computer implemented method of claim 1 , wherein for a reactive method the at least one anchor node includes a master node to transmit soon after receiving any packet that the wireless arbitrary device has transmitted when the master node is not integrated with an access point that is associated with the wireless arbitrary device.

4. The computer implemented method of claim 1 , wherein for a hybrid method the at least one anchor node includes a master node to wait for initial transmissions from the wireless arbitrary device before initiating transmissions at an interval when the master node is not integrated with an access point.

5. The computer implemented method of claim 4 , wherein for the hybrid method the at least one anchor node includes a master node to wait one interframe interval and this wait is terminated early upon receiving a packet from the wireless arbitrary device.

6. The computer implemented method of claim 1 , wherein the wireless network architecture comprises a wireless WAN architecture.

7. The computer implemented method of claim 1 , wherein the wireless network architecture comprises at least one of a wireless local area network (LAN) network architecture and a wireless WAN architecture.

8. The computer implemented method of claim 1 , wherein at least one anchor node includes a wireless wide area network (WAN) RF circuitry for transmitting and receiving wireless RF communications.

9. The computer implemented method of claim 1 , wherein the synchronization packet comprises an acknowledgement, a block acknowledgement, a clear to send frame, or a poll to suppress transmission from the plurality of anchor nodes.

10. An asynchronous system for localization of a wireless arbitrary device in a wireless network architecture, comprising:

a plurality of wireless sensor nodes having RF circuitry; and

at least one anchor node having RF circuitry for transmitting and receiving wireless RF communications and

one or more processing units that are configured to prepare for localization of a wireless arbitrary device, to wait to receive a packet from the wireless arbitrary device, to receive a communication including a packet from the wireless arbitrary device, and to transmit a communication including a synchronization packet to other anchor nodes of the plurality of wireless anchor nodes to synchronize the anchor nodes with respect to each other in response to the at least one anchor node receiving the communication from the wireless arbitrary device.

11. The asynchronous system of claim 10 , wherein the one or more processing units of at least one wireless anchor node are further configured to obtain ranging information including a receive timestamp and channel sense information (CSI) from the received communication including the packet from the wireless arbitrary device.

12. The asynchronous system of claim 10 , wherein for a reactive method the at least one anchor node includes a master node to transmit soon after receiving any packet that the wireless arbitrary device has transmitted when the master node is not integrated with an access point that is associated with the wireless arbitrary device.

13. The asynchronous system of claim 10 , wherein for a hybrid method the at least one anchor node includes a master node to wait for initial transmissions from the wireless arbitrary device before initiating transmissions at an interval when the master node is not integrated with an access point.

14. The asynchronous system of claim 10 , wherein the RF circuitry of the at least one anchor node comprises wireless wide area network (WAN) RF circuitry for transmitting WAN RF communications and wireless local area network (LAN) RF circuitry for transmitting LAN RF communications.

15. The asynchronous system of claim 10 , wherein the synchronization packet comprises an acknowledgement, a block acknowledgement, a clear to send frame, or a poll to suppress transmission from the plurality of anchor nodes.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2023
From: LOCIX, INC.
To: LOCIX, LLC
Reel/Frame 062835/0640 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 18, 2023
From: LOCIX, LLC
To: ZAINAR, INC.
Reel/Frame 062429/0861 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2019
From: BILSTAD, ARNOLD MARK
To: LOCIX, INC.
Reel/Frame 048664/0685 →
Continuity (2)
Continuation In Part 16260608 · Jan 29, 2019
Related Publication 20200245286A1 · Jul 30, 2020