Electronic device for supporting access to wireless media using target wake time (TWT) defined in IEEE 802.11 standard

Patent metadata

Field	Value
Publication number	US-11818003-B2
Application number	US-202117531451-A
Country	US
Kind code	B2
Filing date	Nov 19, 2021
Priority date	Sep 6, 2018
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

An electronic device is provided, which includes a housing, at least one wireless communication circuit located inside the housing and configured to transmit and receive a wireless signal in accordance with the IEEE 802.11 standard, a processor operatively connected to the wireless communication circuit, and a memory operatively connected to the processor and configured to store target wake time (TWT) configuration information based on a quality of service (QoS) individually related to at least one service type, wherein the memory, when executed, stores instructions to cause the processor to broadcast a signal including the TWT configuration information using the wireless communication circuit, receive, from an external electronic device, an authority request for a first TWT at least partly based on the broadcasted information, transmit an authority approval for the first TWT to the external electronic device based on the TWT configuration information and the authority request, and transmit and receive data with the external electronic device at a time selected by the TWT configuration information based on the first TWT. Other certain embodiments are possible.

First claim

What is claimed is:

1. An access point (AP) device for facilitating wireless communication, the AP device comprising:
one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors configured to cause:
generating a target wake time (TWT) element including information indicating a type of traffic and a priority of the traffic, the information being determined based on acceptable latency for the traffic;
transmitting, to a non-AP device, the TWT element through a wireless medium; and
receiving, from the non-AP device, the type of traffic indicated by the information at a time indicated by the TWT element through the wireless medium.

2. The AP device of claim 1 , wherein only the type of traffic indicated by the information is allowed for communication with the non-AP device at the time indicated by the TWT element through the wireless medium.

3. The AP device of claim 1 , wherein the information indicating the type of traffic is associated with an access category.

4. The AP device of claim 1 , wherein the type of traffic is a voice (VO), a video (VI), a best effort (BE), or a background (BK).

5. The AP device of claim 1 , wherein the information indicates one or more types of traffic.

6. The AP device of claim 1 , wherein the TWT element further includes a TWT identifier and a TWT service period.

7. The AP device of claim 6 , wherein the one or more processors are further configured to cause:
broadcasting a notice indicating that no access to the wireless medium is allowed by any non-AP devices other than the non-AP device during a period of time.

8. The AP device of claim 7 , wherein the period of time overlaps with the TWT service period.

9. A non-access point (non-AP) device for facilitating wireless communication, the non-AP device comprising:
one or more memories; and
one or more processors coupled to the one or more memories, the one or more processors configured to cause:
receiving, from an AP device through a wireless medium, a target wake time (TWT) element including information indicating a type of traffic and a priority of the traffic, the information being determined based on acceptable latency of the traffic;
in response to receiving the TWT element, transmitting the type of traffic indicated by the information at a time indicated by the TWT element through the wireless medium.

10. The non-AP device of claim 9 , wherein only the type of traffic indicated by the information is allowed for communication with the AP device at the time indicated by the TWT element through the wireless medium.

11. The non-AP device of claim 9 , wherein the information indicating the type of traffic is associated with an access category.

12. The non-AP device of claim 9 , wherein the type of traffic is a voice (VO), a video (VI), a best effort (BE), or a background (BK).

13. The non-AP device of claim 9 , wherein the information indicates one or more types of traffic.

14. The non-AP device of claim 9 , wherein the TWT element further includes a TWT identifier and a TWT service period.

15. The non-AP device of claim 14 , wherein the one or more processors are further configured to cause:
receiving, from the AP device, a notice indicating that no access to the wireless medium is allowed by any non-AP devices other than the non-AP device during a period of time.

16. The non-AP device of claim 15 , wherein the period of time overlaps with the TWT service period.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Junsu
• Min Hyunkee
• Oh Hyunah
• Lee Sunkee

Classifications

• H04L41/0816 Primary

  the condition being an adaptation, e.g. in response to network events · CPC title

• H04L41/50

  Network service management, e.g. ensuring proper service fulfilment according to agreements · CPC title

• H04W4/80 Primary

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H04W12/08

  Access security · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title