Wireless network synchronization of cells and client devices on a network

Patent metadata

Field	Value
Publication number	US-12446014-B2
Application number	US-202318462166-A
Country	US
Kind code	B2
Filing date	Sep 6, 2023
Priority date	Jan 6, 2006
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

A system and method for wireless synchronization on a network are disclosed. In one embodiment, the wireless device includes a wireless transceiver and processing circuitry. The wireless transceiver wirelessly receives synchronization information including a superframe from a first wireless, reader device, and wirelessly transmits the synchronization information to a second wireless, reader device and a portable wireless device, and to wirelessly detect a presence of a portable wireless device. The processing circuitry communicates synchronization information to the second wireless, reader device and portable wireless device. The superframe is used to synchronize a wireless data exchange between the third wireless, reader device and the portable wireless device.

First claim

What is claimed is:

1. A method, comprising:
detecting, by a wireless coordinator device, that a first wireless access device and a first wireless client device are within a first wireless range of coverage associated with the wireless coordinator device;
assigning, by the wireless coordinator device, a first specific channel frequency to the first wireless access device and the first wireless client device to wirelessly communicate with the wireless coordinator device;
detecting, by the first wireless access device, that the first wireless client device is within a second wireless range of coverage associated with the first wireless access device;
assigning, by the first wireless access device, a first specific time slot and a second specific channel frequency to the first wireless client device to wirelessly communicate with the first wireless access device;
detecting, by the first wireless access device, that the first wireless client device is no longer within the second wireless range of coverage associated with the first wireless access device; and
unassigning, by the first wireless access device, the first specific time slot and the second specific channel frequency from the first wireless client device to wirelessly communicate with the first wireless access device.

2. The method of claim 1 , wherein detecting that the first wireless client device is within the second wireless range of coverage associated with the first wireless access device comprises:
transmitting, by the first wireless access device, a beacon on the first specific channel frequency within the second wireless range of coverage associated with the first wireless access device; and
responsive to an acknowledgement of the beacon on the first specific channel frequency by the first wireless client device, requesting, by the fist wireless access device, the first wireless client device to switch from the first specific channel frequency to the second specific channel frequency for subsequent wireless communication.

3. The method of claim 1 , further comprising:
detecting, by the first wireless access device, that a second wireless client device is within the second wireless range of coverage associated with the first wireless access device; and
reassigning, by the first wireless access device, the first specific time slot and the second specific channel frequency to the second wireless client device to wirelessly communicate with the first wireless access device.

4. The method of claim 1 , further comprising:
detecting, by a second wireless access device, that the first wireless client device is within a third wireless range of coverage associated with the second wireless access device; and
assigning, by the second wireless access device, the second specific time slot and a third specific channel frequency to the first wireless client device to wirelessly communicate with the second wireless access device.

5. The method of claim 4 , wherein the second wireless range of coverage associated with the fist wireless access device and the third wireless range of coverage associated with the second wireless access device partially overlap with each other.

6. The method of claim 4 , further comprising:
detecting, by the wireless coordinator device, that the first wireless access device, the second wireless access device, and the first wireless client device is within the first wireless range of coverage associated with the wireless coordinator device; and
transmitting, by the wireless coordinator device, synchronization information to the first wireless access device, the second wireless access device, and the first wireless client device.

7. The method of claim 6 , wherein the first specific time slot and the second specific time slot are based on the synchronization information.

8. The method of claim 6 , wherein an operation of the first wireless access device, an operation of the second wireless access device, and an operation of the first wireless client device are coordinated based on the synchronization information.

9. The method of claim 1 , wherein the first wireless client device wirelessly communicates with the first wireless access device to access one of an application, an asset, and a service within the second wireless range of coverage associated with the first wireless access device.

10. The method of claim 1 , wherein a wireless communication between the first wireless access device and the first wireless client device is dependent on an IEEE 802 wireless network protocol.

11. A system, comprising:
one or more processors; and
a memory including instructions that, when executed by the one or more processors, cause the system to:
detect, by a wireless coordinator device, that a first wireless access device and a first wireless client device are within a first wireless range of coverage associated with the wireless coordinator device;
assign, by the wireless coordinator device, a first specific channel frequency to the first wireless access device and the first wireless client device to wirelessly communicate with the wireless coordinator device;
detect, by the first wireless access device, that the first wireless client device is within a second wireless range of coverage associated with the first wireless access device;
assign, by the first wireless access device, a first specific time slot and a second specific channel frequency to the first wireless client device to wirelessly communicate with the first wireless access device;
detect, by the first wireless access device, that the first wireless client device is no longer within the second wireless range of coverage associated with the first wireless access device; and
unassign, by the first wireless access device, the first specific time slot and the second specific channel frequency from the first wireless client device to wirelessly communicate with the first wireless access device.

12. The system of claim 11 , wherein to detect that the first wireless client device is within the second wireless range of coverage associated with the first wireless access device, the instructions, when executed by the one or more processors, further cause the system to:
transmit, by the first wireless access device, a beacon on the fist specific channel frequency within the second wireless range of coverage associated with the first wireless access device; and
responsive to an acknowledgement of the beacon on the first specific channel frequency by the first wireless client de vice, request, by the first wireless access device, the first wireless client device to switch from the first specific channel frequency to the second specific channel frequency for subsequent wireless communication.

13. The system of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the system to:
detect, by the first wireless access device, that a second wireless client device is within the second wireless range of coverage associated with the first wireless access device; and
reassign, by the first wireless access device, the first specific time slot and the second specific channel frequency to the second wireless client device to wirelessly communicate with the first wireless access device.

14. The system of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the system to:
detect, by a second wireless access device, that the first wireless client device is within a third wireless range of coverage associated with the second wireless access device; and
assign, by the second wireless access device, a second specific time slot

Assignees

• Proxense Llc

Inventors

• Brown David L
• Hirt Fred S

Classifications

• H04W74/085

  collision avoidance · CPC title

• H04W56/001

  Synchronization between nodes · CPC title

• H04W56/00

  Synchronisation arrangements · CPC title

• H04W52/50

  at the moment of starting communication in a multiple access environment · CPC title

• H04W52/0216 Primary

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title