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-11206184-B2
Application number	US-201916550705-A
Country	US
Kind code	B2
Filing date	Aug 26, 2019
Priority date	Sep 6, 2018
Publication date	Dec 21, 2021
Grant date	Dec 21, 2021

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 comprising:
a housing;
at least one wireless communication circuit located inside the housing and configured to transmit and receive a wireless signal in accordance with a short range wireless communication protocol;
at least one processor operatively connected to the wireless communication circuit; and
a memory operatively connected to the at least one processor,
wherein the memory stores instructions that, when executed by the at least one processor, cause the at least one processor to:
store, in the memory, target wake time (TWT) configuration information based on a quality of service (QoS) individually related to at least one service type,
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 based at least in part on the broadcasted signal,
transmit an authority approval for the first TWT to the external electronic device based on the TWT configuration information and the authority request,
transmit and receive data with the external electronic device at a time selected by the TWT configuration information based on the first TWT, and
transmit, to the external electronic device, a notification message indicating that authority of the external electronic device on the first TWT is released when a designated retention period is exceeded after the authority approval.

2. The access point of claim 1 , wherein the TWT configuration information is generated based on a latency or a service period for the at least one service type.

3. The access point of claim 1 , wherein the TWT configuration information includes the at least one service type supported by the access point or an ID of the first TWT.

4. The access point of claim 1 , wherein the instructions cause the at least one processor to generate the first TWT if the first TWT is not included in the TWT configuration information.

5. The access point of claim 1 , wherein the at least one service type supported by the access point includes a voice (VO), a video (VI), a best effect (BE), and a background (BK) in accordance with the short range communication protocol, and the TWT configuration information includes information indicating an ID of the first TWT, a service period of the first TWT, a service type allocated to the first TWT, and an interval of the first TWT.

6. The access point of claim 5 , wherein the instructions cause the at least one processor to: adjust the service period of the first TWT based on a data throughput for the service period of the first TWT, and broadcast another signal including information indicating the adjusted service period of the first TWT using the wireless communication circuit.

7. The access point of claim 6 , wherein the instructions cause the at least one processor to:
update the TWT configuration information by deleting the first TWT from the TWT configuration information if the data throughput is equal to or lower than a designated critical value, and
broadcast the updated TWT configuration information using the wireless communication circuit.

8. The access point of claim 7 , wherein the instructions cause the at least one processor to:
update the TWT configuration information by lengthening a service period allocated to a second TWT by an amount substantially equal to the period of the deleted first TWT, and
broadcast the updated TWT configuration information using the wireless communication circuit.

9. The access point of claim 5 , wherein the instructions cause the at least one processor to configure the interval of the first TWT based on a latency defined by a period between a time when a packet is sent from the external electronic device and a time when the packet arrives at another external electronic device that is a destination of the packet.

10. The access point of claim 9 , wherein the instructions cause the at least one processor to configure the interval of the first TWT shorter than a designated critical latency.

11. The access point of claim 1 , wherein the instructions cause the at least one processor to transmit, to the external electronic device, a participation approval for another second TWT having a same service type as that of the first TWT and having a different service period from that of the first TWT if a number of external electronic devices authorized on the first TWT on which the external electronic device requests to have authority equal or exceeds a designated value.

12. The access point of claim 1 , wherein the instructions cause the at least one processor to:
update the TWT configuration information by shortening a period allocated to a second TWT by an amount equal to the period allocated to the first TWT, and
broadcast the updated TWT configuration information using the wireless communication circuit.

13. An electronic device comprising:
a housing;
a display configured to be shown through a part of the housing;
at least one wireless communication circuit located inside the housing and configured to transmit and receive a wireless signal in accordance with a short range wireless protocol;
at least one processor operatively connected to the display and the wireless communication circuit; and
a memory operatively connected to the at least one processor,
wherein the memory stores instructions that, when executed by the at least one processor, cause the at least one processor to:
receive a signal including target wake time (TWT) configuration information from an access point through the wireless communication circuit,
transmit an authority request for a first TWT based on a first service type supported by the access point,
receive an authority approval for the first TWT from the access point,
transmit and receive data with the access point at a time selected by the TWT configuration information based on the first TWT, and
receive, from the access point, a notification message indicating that authority on the first TWT is released when a designated retention period is exceeded after the authority approval.

14. The electronic device of claim 13 , wherein the TWT configuration information is generated based on a latency and/or a service period for the service type.

15. The electronic device of claim 13 , wherein the TWT configuration information includes the service type supported by the access point or an ID of the first TWT.

16. The of claim 13 , wherein the instructions cause the at least one processor to:
transmit, to the access point, a message requesting generation of the first TWT if the first TWT is not included in the TWT configuration information.

17. The electronic device of claim 13 , wherein the instructions cause the at least one processor to:
identify a type of a service to be provided by an application being executed, and
identify, as the first TWT, a TWT for the identified type of the service based on the TWT configuration information received from the access point.

Assignees

• Samsung Electronics Co Ltd

Inventors

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

Classifications

• H04W72/30

  Resource management for broadcast services · CPC title

• H04W72/542

  using measured or perceived quality · CPC title

• H04W74/002 Primary

  Transmission of channel access control information · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W74/08

  Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02) · CPC title