Wireless communication system and method of managing energy consumption of a wireless device

Patent metadata

Field	Value
Publication number	US-11166233-B2
Application number	US-201816490291-A
Country	US
Kind code	B2
Filing date	Mar 1, 2018
Priority date	Mar 2, 2017
Publication date	Nov 2, 2021
Grant date	Nov 2, 2021

Abstract

A wireless communication system includes gateway, a server, and a wireless device. The server is configured to send a heartbeat of a plurality of heartbeats to the wireless device upon expiration of a respective heartbeat interval of a plurality of heartbeat intervals. The wireless device is configured to send a plurality of Power Save polls to the Access Point device, wherein each Power Save poll of the plurality of Power Save polls retrieves a respective heartbeat of the plurality of heartbeats.

First claim

What is claimed is:

1. A method of operating a wireless communication system comprising:
sending a first heartbeat from a server, through a gateway, and to a wireless device, wherein the first heartbeat includes at least a heartbeat interval;
sending a first heartbeat response from the wireless device, through the gateway, and to the server for synchronizing the wireless device with the server; and
changing from a first awake state to a first sleep state, wherein the first sleep state extends for a duration associated with the heartbeat interval, wherein the first heartbeat is buffered by the gateway and the wireless device is a PSM device.

2. The method set forth in claim 1 , further comprising:
broadcasting an acknowledgement signal from the gateway to the PSM device in response to the Wi-Fi Enable PSM signal, and when in the awake state.

3. A method of operating a wireless communication system comprising:
sending a first heartbeat from a server, through a gateway, and to a wireless device, wherein the first heartbeat includes at least a heartbeat interval;
sending a first heartbeat response from the wireless device, through the gateway, and to the server for synchronizing the wireless device with the server; and
changing from a first awake state to a first sleep state, wherein the first sleep state extends for a duration associated with the heartbeat interval, wherein the heartbeat interval is about equal to combined durations of the first awake state and the first sleep state.

4. A method of operating a wireless communication system comprising:
sending a first heartbeat from a server, through a gateway, and to a wireless device, wherein the first heartbeat includes at least a heartbeat interval;
sending a first heartbeat response from the wireless device, through the gateway, and to the server for synchronizing the wireless device with the server;
changing from a first awake state to a first sleep state, wherein the first sleep state extends for a duration associated with the heartbeat interval;
sending a Wi-Fi Enable Power Save Mode (PSM) signal from the wireless device to the gateway when in the awake state, wherein the gateway is an Access Point (AP) device and the wireless device is a PSM device;
sending an application command to the server;
buffering the application command by the server; and
sending a second heartbeat that includes the application command from the server to the wireless device, upon expiration of the time interval.

5. The method set forth in claim 4 , further comprising:
buffering the application command by the gateway;
entering a second awake state from the first sleep state approximately upon expiration of the heartbeat time interval;
sending a Power Save (PS) poll from the wireless device to the gateway; and
broadcasting the second heartbeat from the gateway and to the wireless device.

6. The method set forth in claim 5 , wherein the application command is sent to the server by a mobile application.

7. The method set forth in claim 6 , further comprising:
sending a second heartbeat response from the wireless device, through the gateway, through the server, and to the mobile application; and
entering a second sleep state from the second awake state.

8. The method set forth in claim 7 , wherein the wireless device is configured to ignore any beacons broadcasted by the gateway.

9. A wireless communication system comprising:
a gateway;
a server configured to send a heartbeat of a plurality of heartbeats to the gateway upon expiration of a respective heartbeat interval of a plurality of heartbeat intervals; and
a wireless device configured to retrieve a heartbeat of the plurality of heartbeats, wherein the wireless device is a Power Save Mode (PSM) device configured to send a plurality of PS polls to the gateway, wherein each PS poll of the plurality of PS polls retrieves a respective heartbeat of the plurality of heartbeats.

10. The wireless communication system set forth in claim 9 , wherein each heartbeat interval of the plurality of heartbeat intervals equals the combined duration of an awake state and a sleep state.

11. The wireless communication system set forth in claim 9 , further comprising:
a mobile application configured to send a mobile command to the server, wherein the server is configured to buffer the mobile command until the next heartbeat of the plurality of heartbeats is sent to the wireless device and buffered by the gateway, whereupon the mobile command becomes part of the next heartbeat.

12. The wireless communication system set forth in claim 11 , wherein the server is part of a cloud.

13. The wireless communication system set forth in claim 11 , wherein each PS poll of the plurality of PS polls is sent to the gateway approximately upon expiration of a respective heartbeat time duration of the plurality of heartbeat time durations.

Assignees

• Carrier Corp

Inventors

• Moner Poy Hector
• Tiwari Ankit
• Campana Daniele
• Fernandez Orellana Pedro

Classifications

• H04W52/0216 Primary

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

• H04W52/0219

  where the power saving management affects multiple terminals · CPC title

• H04L43/10

  Active monitoring, e.g. heartbeat, ping or trace-route · CPC title

• H04W52/0235

  where the received signal is a power saving command · CPC title

• Y02D30/70

  in wireless communication networks · CPC title