Electronic device for changing communication frequency on basis of detection of hidden interference and method for operating same

Patent metadata

Field	Value
Publication number	US-12471126-B2
Application number	US-202217954847-A
Country	US
Kind code	B2
Filing date	Sep 28, 2022
Priority date	Apr 3, 2020
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

An electronic device is provided. The electronic device includes a communication module, a processor operatively connected to the communication module, and a memory operatively connected to the processor, the memory include instructions that, when executed, cause the processor to receive a first signal by using a plurality of sub-frequency bands through the communication module, identify at least one sub-frequency band in which hidden interference is identified on the basis of a pre-high efficiency modulated field (pre-HE modulated field) of a packet indicated by the first signal, and change a communication frequency by transmitting a second signal including information indicating the at least one identified sub-frequency band to an external electronic device in which a wireless communication connection has been established.

First claim

What is claimed is:

1 . An electronic device comprising:
a communication circuit; at least one processor electrically connected to the communication circuit; and memory storing instructions that, when executed by the at least one processor individually or collectively, cause the electronic device to: receive, from an external electronic device, first data using a plurality of sub-frequency bands of a frequency band via the communication circuit, identify at least one sub-frequency band in which an interference occurs among the plurality of sub-frequency bands, based on whether first information on a basic service set (BSS) of the external electronic device is included in the first data, and transmit, to the external electronic device, second data including information related to at least a portion of the plurality of sub-frequency bands, wherein the at least one sub-frequency band is set not to be used for a wireless communication with the external electronic device based on the second data.

2 . The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, further cause the electronic device to:
identify whether the first information and second information are included in a pre-high efficiency (pre-HE) modulated field of the first data, wherein the second information indicates the first data is downlink data, and in case that the first information and the second information are not included in the first data, identify that the interference exists in a sub-frequency band in which the first data is received.

3 . The electronic device of claim 2 , wherein the instructions, when executed by the at least one processor, further cause the electronic device to:
identify the first information and the second information in a high-efficiency signal A (HE-SIG A) field of the pre-HE modulated field.

4 . The electronic device of claim 2 , wherein the instructions, when executed by the at least one processor, further cause the electronic device to:
identify a sub-frequency band in which information comprised in the pre-HE modulated field is not identified among the plurality of sub-frequency bands, as the at least one sub-frequency band in which the interference exists.

5 . The electronic device of claim 2 ,
wherein the first information includes identification information of the BSS of the external electronic device, and wherein the identification information includes a BSS color of the external electronic device.

6 . The electronic device of claim 1 ,
wherein the instructions, when executed by the at least one processor, further cause the electronic device to: count a number of times in which the interference occurs in each of the plurality of sub-frequency bands, based on the first data received at every specified time, and transmit, to the external electronic device, the second data based on the number of times, and wherein the information related to the at least a portion of the plurality of sub-frequency bands indicates the at least one sub-frequency band in which the interference occurs.

7 . The electronic device of claim 6 , wherein the instructions, when executed by the at least one processor, further cause the electronic device to:
transmit the second data to the external electronic device, in case that the number of times exceeds a threshold.

8 . The electronic device of claim 7 , wherein the threshold is set based on an application that is currently transmitting or receiving data with the external electronic device.

9 . The electronic device of claim 1 , wherein the second data is a packet comprising a target wake time (TWT) element.

10 . The electronic device of claim 9 , wherein the information related to the at least a portion of the plurality of sub-frequency bands is comprised in a TWT channel field of a packet comprising the TWT element.

11 . The electronic device of claim 1 , wherein the second data is a packet of a format for indicating a bandwidth query report (BQR).

12 . The electronic device of claim 11 , wherein the second data is transmitted in response to receiving a bandwidth query report poll (BQRP) from the external electronic device.

13 . A method performed by an electronic device, method comprising:
receiving, from an external electronic device, first data using a plurality of sub-frequency bands of a frequency band, via a communication circuit of the electronic device; identifying at least one sub-frequency band in which an interference occurs among the plurality of sub-frequency bands, based on whether first information on a basic service set (BSS) of the external electronic device is included in the first data; and transmitting, to the external electronic device, second data including information related to at least a portion of the plurality of sub-frequency bands, wherein the at least one sub-frequency band is set not to be used for a wireless communication with the external electronic device based on the second data.

14 . The method of claim 13 , further comprising:
identifying whether the first information and second information are included in a pre-high efficiency (pre-HE) modulated field of the first data, wherein the second information indicates the first data is downlink data; and in case that the first information and the second information are not included in the first data, identifying that the interference exists in a sub-frequency band in which the first data is received.

15 . The method of claim 13 , further comprising:
counting a number of times in which the interference occurs in each of the plurality of sub-frequency bands, based on the first data received at every specified time; and transmitting, to the external electronic device, the second data based on the number of times, wherein the information related to the at least a portion of the plurality of sub-frequency bands indicates the at least one sub-frequency band in which the interference occurs.

16 . The method of claim 15 , further comprising:
determining that the number of times exceeds a threshold.

17 . The method of claim 16 , wherein the threshold is set differently for different applications.

18 . The method of claim 17 , wherein the specified threshold-for voice over Internet protocol (VOIP) is 5 times per second, the specified threshold for video streaming is 10 times per second, and the specified-threshold for web browsing is 20 times per second.

19 . The method of claim 13 , wherein the second data is a packet of a format for indicating a bandwidth query report (BQR).

20 . The method of claim 13 , wherein the second data is transmitted in response to receiving a bandwidth query report poll (BQRP) from the external electronic device.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Junsu
• Na Hyoseok
• Nam Janghyun
• Lee Woosup
• Hwang Minsik

Classifications

• H04W24/08

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title

• H04W72/0453 Primary

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W72/541 Primary

  using the level of interference · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title