# US 10,455,533 B2 · Wireless network synchronization of cells and client devices on a network > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,455,533 B2 - Document ID: US10455533B2 - Status: Granted - Kind: B2 - Application number: 16/366,010 - Filed: 2019-03-27 - Published: 2019-09-19 - Granted: 2019-10-22 - Earliest claimed: 2006-01-06 - Assignees: Proxense, LLC - Applicants: Proxense, LLC - Inventors: David L. Brown - Web page: https://patentgrep.com/patent/US10455533B2 ## CPC - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 4/02: Services making use of location information - H04W 12/02: Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII] - H04W 12/04: Key management, e.g. using generic bootstrapping architecture [GBA] - H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame} - H04W 52/50: at the moment of starting communication in a multiple access environment - H04W 56/001: {Synchronization between nodes} - H04W 74/085: {collision avoidance} - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04W 8/005: {Discovery of network devices, e.g. terminals} - H04W 12/06: Authentication - H04W 12/08: Access security - H04W 12/47: using near field communication [NFC] or radio frequency identification [RFID] modules - H04W 24/00: Supervisory, monitoring or testing arrangements - H04W 48/08: Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) - H04W 56/00: Synchronisation arrangements - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## 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. ## Claims ### Claim 1 A system comprising: a first wireless device having a known physical location, the first wireless device including; a first wireless transceiver configured to transmit a beacon including a source identifier, the source identifier indicating a source of the beacon; a second wireless device including: a second wireless transceiver having an active mode in which power is consumed, and a sleep mode in which power is conserved; a timer operatively coupled to the second wireless transceiver used to indicate when to switch from sleep mode to active mode based on time slot information; processing circuitry operatively coupled to the second wireless transceiver and the timer, the processing circuitry arranged to switch the second wireless transceiver from the sleep mode to the active mode in response to input from the timer, the processing circuitry also arranged to monitor a first channel for the beacon during the active mode and, subsequently, to increase a channel number to a second channel and to reset the timer; and a server configured to receive data from the second wireless device when in proximity to the first wireless device. ### Claim 2 (depends on 1) The system of claim 1, wherein the server is further configured to track a location of the second wireless device. ### Claim 3 (depends on 2) The system of claim 2, wherein the location of the second wireless device is based on determining that the second wireless device is within a wireless coverage range of the first wireless device. ### Claim 4 (depends on 1) The system of claim 1, wherein the known physical location of the first wireless device is a fixed physical location. ### Claim 5 (depends on 1) The system of claim 1, wherein at least one of the first wireless device and the second wireless device include enable a user to access at least one of an application, an asset, and a service when the first wireless device and the second wireless device are within proximity. ### Claim 6 (depends on 1) The system of claim 1, wherein at least one of the first wireless device and the second wireless device wirelessly transmits data that completes a purchase transaction. ### Claim 7 (depends on 1) The system of claim 1, further the server is configured to gather information from the second wireless device. ### Claim 8 (depends on 1) The system of claim 1, wherein the second wireless device is one or more of a watch and a mobile computing device. ### Claim 9 (depends on 1) The system of claim 1, wherein the second wireless device is a cellular phone. ### Claim 10 (depends on 1) The system of claim 1, wherein the second wireless device includes a secure memory element storing a number assigned to the second wireless device. ### Claim 11 A method comprising: switching a wireless transceiver from a sleep mode in which power is conserved to an active mode in which power is consumed responsive to an expiration of a timer, the timer indicating when to switch from sleep mode to active mode based on time slot information, monitoring a first channel for a beacon during the active mode, wherein the beacon includes a source identifier, the source identifier indicating a source of the beacon, the source of the beacon having a known physical location; increasing a channel number to a second channel; subsequent to increasing the channel number to the second channel, resetting the timer; receiving, from a first wireless device, the beacon including the source identifier, the source identifier indicating the source of the beacon; and sending data to a server, when in proximity to the first wireless device. ### Claim 12 (depends on 11) The method of claim 11, wherein the server is further configured to track a location of a second wireless device, the second wireless device including the wireless transceiver. ### Claim 13 (depends on 12) The method of claim 12, wherein the location of the second wireless device is based on determining that the second wireless device is within a wireless coverage range of the first wireless device. ### Claim 14 (depends on 11) The method of claim 11, wherein the known physical location of the first wireless device is a fixed physical location. ### Claim 15 (depends on 11) The method of claim 11, wherein a second wireless device includes the wireless transceiver, wherein at least one of the first wireless device and the second wireless device include enabling a user to access at least one of an application, an asset when the first wireless device and the second wireless device are within proximity. ### Claim 16 (depends on 11) The method of claim 11, wherein a second wireless device includes the wireless transceiver, wherein at least one of the first wireless device and the second wireless device includes a wireless data transmission that completes a purchase transaction. ### Claim 17 (depends on 11) The method of claim 11, wherein the server is configured to gather information from a second wireless device, the second wireless device including the wireless transceiver. ### Claim 18 (depends on 11) The method of claim 11, wherein the wireless transceiver is incorporated into one or more of a watch and a mobile computing device. ### Claim 19 (depends on 11) The method of claim 11, wherein the wireless transceiver is integrated into a cellular phone. ### Claim 20 (depends on 11) The method of claim 11, wherein a second wireless device includes the wireless transceiver, the second wireless device includes a secure memory element storing a number assigned to the second wireless device.