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公开(公告)号：US11219058B2
公开(公告)日：2022-01-04
申请号：US16730648
申请日：2019-12-30
Inventor： Hyoung Jin Kwon , Jae Seung Lee , Min ho Cheong , Hee Jung Yu , Sok Kyu Lee
Abstract: The present invention relates to a terminal for requesting and acquiring information relating to channel access in a wireless LAN, and to an apparatus for providing information relating to channel access in a wireless LAN. The terminal for requesting and acquiring information relating to channel access in a wireless LAN according to one embodiment of the invention verifies the reception of a beacon during a preset beacon interval, if it is verified that the beacon has not been received, transmits a group and slot information request signal, and receives, from an access point, a group and slot information response signal as a response to the group and slot information request signal.
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公开(公告)号：US11219038B2
公开(公告)日：2022-01-04
申请号：US16869374
申请日：2020-05-07
Inventor： Hyoung Jin Kwon , Sok Kyu Lee , Jae Seung Lee , Min ho Cheong
IPC: H04W72/12 , H04L25/02 , H04L5/00 , H04B7/0452 , H04L27/26 , H04W84/12 , H04B7/0417
Abstract: Disclosed are a wireless communication method, and an access point and a station which perform the wireless communication method. A wireless communication method performed by an access point according to an embodiment may include performing channel sounding on a plurality of subchannels, identifying subchannels selected by stations among the subchannels, scheduling communications between the AP and the stations based on the selected subchannels, and transmitting a data frame to the stations through the subchannels based on a scheduling result.
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公开(公告)号：US10897736B2
公开(公告)日：2021-01-19
申请号：US16124009
申请日：2018-09-06
Inventor： Jae Seung Lee , Min ho Cheong , Hyoung Jin Kwon , Jae Woo Park , Sok Kyu Lee
Abstract: Provided is a sector discovery apparatus and method, the method including setting, by an AP in a WLAN system, an omni-beacon interval for transmitting an omnidirectional beacon and sector beacon intervals for transmitting a sector beacon with respect to one of a plurality of sectors which are spatially divided, transmitting the sector beacon to a current sector among the plurality of sectors, transmitting, to the current sector, a transmission frame indicating sectorized transmission or a transmission frame indicating omnidirectional transmission, in a sector interval between the sector beacon intervals, and receiving, from a terminal located in the current sector, a response frame indicating an association performed by receiving the transmission frame indicating the sectorized transmission.
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公开(公告)号：US10779318B2
公开(公告)日：2020-09-15
申请号：US16430222
申请日：2019-06-03
Inventor： Hyoung Jin Kwon , Jae Seung Lee , Min ho Cheong , Hee Jung Yu , Sok Kyu Lee
Abstract: An apparatus and a method of controlling slot-based channel access by an access point (AP) to manage a network in a wireless local area network (WLAN) environment and a slot-based channel access terminal are disclosed. A slot-based channel access control apparatus of a WLAN system according to an exemplary embodiment determines one of each terminal and a group of terminals as a slot allocation target, allocates a slot defined in a beacon interval to the determined terminal or group to distinguish channel access time, and transmits a beacon including information on the allocated slot.
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公开(公告)号：US10375682B2
公开(公告)日：2019-08-06
申请号：US14890303
申请日：2014-05-12
Inventor： Min ho Cheong , Hyoung Jin Kwon , Jae Seung Lee , Sok Kyu Lee
IPC: H04W72/04 , H04B17/309 , H04W48/12 , H04W84/12 , H04W74/00
Abstract: A method for channel sounding in a wireless local area network (WLAN) system and apparatus for the same is disclosed. An access point (AP) to perform the method for channel sounding broadcasts information on a restricted access window (RAW) for channel sounding included in a beacon, and transmits null data packets (NDP) for channel estimation in the RAW to a station (STA). The STA estimates channel information based on the NDPs, and transmits the estimated channel information to the AP.
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Patent Agency Ranking
公开(公告)号：US11304186B2
公开(公告)日：2022-04-12
申请号：US16455385
申请日：2019-06-27
Inventor： Min ho Cheong , Hyoung Jin Kwon , Jae Seung Lee , Sok Kyu Lee
IPC: H04W72/04 , H04W48/12 , H04B17/309 , H04W74/00 , H04W84/12
Abstract: A method for channel sounding in a wireless local area network (WLAN) system and apparatus for the same is disclosed. An access point (AP) to perform the method for channel sounding broadcasts information on a restricted access window (RAW) for channel sounding included in a beacon, and transmits null data packets (NDP) for channel estimation in the RAW to a station (STA). The STA estimates channel information based on the NDPs, and transmits the estimated channel information to the AP.
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公开(公告)号：US10897759B2
公开(公告)日：2021-01-19
申请号：US16418764
申请日：2019-05-21
Inventor： Min ho Cheong , Hyoung Jin Kwon , Jae Seung Lee , Jae Woo Park , Sok Kyu Lee
Abstract: Provided is a method and apparatus for allocating resources in a wireless local area network (WLAN) system, the method including determining a restricted access bandwidth (RAB) interval based on at least a bandwidth or a partial bandwidth among a plurality of bandwidths, and setting a restricted access window (RAW) of a time domain based on the RAB interval.
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公开(公告)号：US10681634B2
公开(公告)日：2020-06-09
申请号：US16379629
申请日：2019-04-09
Inventor： Jae Seung Lee , Hyoung Jin Kwon , Min ho Cheong , Hee Jung Yu , Sok Kyu Lee
Abstract: An operating mode change method of a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting, by a station (STA) to an access point (AP), an operating mode change request frame comprising at least one of information on a change of a traffic indication map (TIM) mode, a request for a change of a power save parameter, and information on a change of a service type of the STA, receiving, from the AP, an operating mode change response frame comprising at least one of a TIM mode allowed by the AP, a reallocated association identification (AID), and information on a changed power save parameter, and performing at least one of the change of the TIM mode and the change of the power save parameter based on the information included in the operating mode change.
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公开(公告)号：US11284345B2
公开(公告)日：2022-03-22
申请号：US16870402
申请日：2020-05-08
Inventor： Jae Seung Lee , Hyoung Jin Kwon , Min ho Cheong , Hee Jung Yu , Sok Kyu Lee
Abstract: An operating mode change method of a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting, by a station (STA) to an access point (AP), an operating mode change request frame comprising at least one of information on a change of a traffic indication map (TIM) mode, a request for a change of a power save parameter, and information on a change of a service type of the STA, receiving, from the AP, an operating mode change response frame comprising at least one of a TIM mode allowed by the AP, a reallocated association identification (AID), and information on a changed power save parameter, and performing at least one of the change of the TIM mode and the change of the power save parameter based on the information included in the operating mode change.
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公开(公告)号：US11172434B2
公开(公告)日：2021-11-09
申请号：US16431487
申请日：2019-06-04
Inventor： Jae Seung Lee , Min ho Cheong , Je Hun Lee , Ja Beom Gu , Jae Woo Park , Sok Kyu Lee
Abstract: A scanning method in a wireless local area network (WLAN) system is provided. The scanning method includes transmitting, by a station, a probe request frame and receiving, by the station, a probe response frame from an access point (AP). The AP determines whether to transmit the probe response frame in response to the probe request frame using information indicated by the probe request frame.
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