IP Library Granted Patent US 10,917,844
Granted Patent B2
US 10,917,844 · App. 16/163,613 · Granted Feb 9, 2021

Wireless local area network power saving method and access point

Inventors: Kyung Sik Cho (Seongnam-si, KR); Beom Jin Kim (Seongnam-si, KR)
Assignee: Dialog Semiconductor Korea Inc.
H04W52/0206H04W52/0229H04W84/12H04W88/08
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Quick Facts
Patent No.
US 10,917,844
App. No.
16/163,613
Granted
Feb 9, 2021
Kind
B2
Abstract

A wireless local area network power saving method and an access point are provided. The access point implements a sleep mode regardless of whether the access point connects to a station. Furthermore, the access point sets different access point wake-up time period depending on the situation whether the access point connects to the base station or not such that power saving effect is enhanced.

Claims (23)

1. An access point, comprising:

at least one processor;

a memory connected with the at least one processor, wherein the memory

comprises at least one program instruction and the at least one processor executes the at least one program instruction to:

disable a sleep mode of the access point and enable a radio frequency (RF) communication module during a power saving timeout time period of each power saving timeout cycle set by the access point;

check whether data transmission or reception occurs during the power saving timeout time period; and

extend or shorten the power saving timeout time period of a next power saving timeout cycle depending on a result of the checking, wherein the power saving timeout time period of the next power saving timeout cycle is shortened in a condition of no occurrence of the data transmission or reception such that the access point lowers a power consumption by increasing the time which the access point is in the sleep mode,

wherein the sleep mode is enabled or disabled based on the power saving timeout time period of the power saving timeout cycle regardless of whether the access point connects to a station, and

wherein the power saving timeout time period is set irrelevantly to a period of the data transmission or reception.

2. The access point as claimed in claim 1 , wherein the access point, during an interval in which the sleep mode is disabled and the RF communication module is enabled, extends the power saving timeout time period of a next power saving timeout cycle depending on a condition of the data transmission or reception between the access point and the station occurring over the power saving timeout time period set initially.

3. The access point as claimed in claim 2 , wherein the access point disables the sleep mode, and enables the RF communication module during the extended power saving timeout time period at a time point of arrival of the power saving timeout cycle.

4. The access point as claimed in claim 3 , wherein the access point, at a time point of arrival of the power saving timeout cycle, compares to the extended power saving timeout time period and then shortens a next power saving timeout time period depending on a condition of a time of the data transmission or reception between the access point and the station not reaching the extended power saving timeout time period.

5. The access point as claimed in claim 1 , wherein the at least one processor further executes the at least one program instruction to:

set the power saving timeout cycle depending on whether the access point connecting to the stations.

6. The access point as claimed in claim 5 , wherein the access point, depending on a condition of the access point not connecting to the station, sets the power saving timeout cycle to be longer than a standard value, such that the access point disables the sleep mode and enables the RF communication module during the power saving timeout time period of the longer power saving timeout cycle.

7. The access point as claimed in claim 5 , wherein the access point, depending on a condition of the access point connecting to the station, sets the power saving timeout cycle to be shorter than the standard value such that the access point disables the sleep mode and enables the RF communication module during the power saving timeout time period of the longer power saving timeout cycle.

8. The access point as claimed in claim 1 , wherein the access point, even in a condition of existence of a data packet to be transmitted or received during the interval in which the sleep mode is enabled, changes the sleep mode to be disabled, and enables the RF communication module such that the access point transmits data corresponding to the data packet to or receives data corresponding to the data packet from the station.

9. A power saving method of an access point, comprising:

disabling a sleep mode of the access point and enabling a radio frequency (RF) communication module during a power saving timeout time period of each power saving timeout cycle set by the access point;

checking whether data transmission or reception occurs during the power saving timeout time period; and

extending or shortening the power saving timeout time period of a next power saving timeout cycle depending on a result of the checking, wherein the power saving timeout time period of the next power saving timeout cycle is shortened in a condition of no occurrence of the data transmission or reception such that the access point lowers a power consumption by increasing the time which the access point is in the sleep mode,

wherein the sleep mode is enabled or disabled based on the power saving timeout time period of the power saving timeout cycle regardless of whether the access point connects to a station, and

wherein the power saving timeout time period is set irrelevantly to a period of the data transmission or reception.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2026
From: RENESAS DESIGN KOREA INC.
To: RENESAS ELECTRONIC AMERICA INC.
Reel/Frame 074176/0251 →
CHANGE OF NAME Recorded Nov 8, 2025
From: DIALOG SEMICONDUCTOR KOREA INC.
To: RENESAS DESIGN KOREA INC.
Reel/Frame 073513/0861 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2020
From: FCI INC.
To: DIALOG SEMICONDUCTOR KOREA INC.
Reel/Frame 053687/0698 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2018
From: CHO, KYUNG SIK; KIM, BEOM JIN
To: FCI INC.
Reel/Frame 047207/0975 →
Priority Claims (1)
KR 10-2017-0157561 · Nov 23, 2017 · national
Continuity (1)
Related Publication 20190159124A1 · May 23, 2019