Method of saving power of station in wireless network

Patent metadata

Field	Value
Publication number	US-10045295-B2
Application number	US-201715585736-A
Country	US
Kind code	B2
Filing date	May 3, 2017
Priority date	Sep 4, 2015
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

A method of saving power of a station in wireless network is provided. The station comprises a connectivity module, a central processing unit, and peripheral devices. The method includes: upon receiving a wake-up signal, powering on the connectivity module, the central processing unit, and the peripheral devices; performing the central processing unit and the peripheral devices in a connection state; performing the connectivity module in an authenticated state; and upon a condition that there is no data to be transferred to the station or after the station transmits and receives all needed data, performing a sleep mode to power off the connectivity module, the central processing unit, and the peripheral devices.

First claim

What is claimed is:

1. A method of saving power of a station in wireless network, the method comprising:
upon receiving a first wake-up signal, performing data transmission;
upon a condition that there is no data to be transferred to the station, performing a sleep mode; and
upon receiving a second wake-up signal, performing data transmission;
wherein an interval between the first and second wake-up signals is longer than an interval between two delivery traffic indication messages (DTIMs).

2. The method of claim 1 , wherein the delivery traffic indication messages are received from an access point.

3. The method of claim 1 , wherein the station comprises a general purpose input/output (GPIO) device, and the wake-up signal is sent from the GPIO device in response to an external event.

4. The method of claim 1 , wherein the station comprises a connectivity module, and the method further comprises:
upon a condition that there is data to be transferred by a delivery traffic indication message (DTIM) from an access point, performing the connectivity module in an authenticated state.

5. The method of claim 1 wherein the station comprises a timer, and the first and second wake-up signals are generated by the timer.

6. The method of claim 1 , wherein the station comprises a connectivity module and a retention memory, the retention memory is used for storing information relating to authenticated states of the connectivity module in a previous operation occurred before the last sleep mode, and the method further comprises:
performing the connectivity module in the authenticated state complying with the previous operation.

7. The method of claim 1 , wherein the station comprises a connectivity module and the connectivity module comprises a modulator/demodulator, a radio frequency (RF) transceiver, an analog-to-digital converter, a digital-to-analog converter, and a media access controller.

8. The method of claim 1 , wherein the station comprises a connectivity module and the station connects to another station by using WiFi, Bluetooth, Zigbee, and ZWAVE wireless technology protocol through the connectivity module.

9. The method of claim 1 , wherein the station comprises a connectivity module, a central processing unit (CPU), and peripheral devices, and the method further comprises:
upon receiving the first or second wake-up signal, powering on the connectivity module, the central processing unit, and the peripheral devices.

10. The method of claim 1 , wherein the station comprises a connectivity module, a central processing unit (CPU), and peripheral devices, and the method further comprises:
upon performing the sleep mode, powering off the connectivity module, the central processing unit, and the peripheral devices.

Assignees

• Fci Inc

Inventors

• Kim Beomjin
• Cohen David

Classifications

• G06F21/81

  by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations · CPC title

• H04W52/0216 Primary

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

• H04W12/06

  Authentication · CPC title

• H04W52/0222

  in packet switched networks · CPC title

• G06F21/74

  operating in dual or compartmented mode, i.e. at least one secure mode · CPC title