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11.发明授权公开(公告)号：US09143300B2
公开(公告)日：2015-09-22
申请号：US13652410
申请日：2012-10-15
Inventor： Hee-Jung Yu , Sok-Kyu Lee
CPC classification number: H04W4/00 , H04B7/2656 , H04L5/0048 , H04L5/0053 , H04L5/0092 , H04L27/2613 , H04W56/00
Abstract: A data transmission apparatus in a communication system includes a verification unit configured to verify a new frequency band for transmitting and receiving data to and from a plurality of terminals; a generation unit configured to generate a frame in the new frequency band; and a transmission unit configured to transmit data through the new frequency band by using the frame, wherein the frame includes data fields in which data corresponding to the terminals are included, and control fields in which control information for receiving the data included in the data field in the terminals is included, and wherein the control fields include a VHT-STF (very high throughput short training field), a VHT-SIG (very high throughput signal field) A1, a VHT-SIG A2, a plurality of VHT-LTFs (very high throughput long training fields), and a VHT-SIG B.
Abstract translation: 通信系统中的数据发送装置包括：验证部，其对多个终端进行数据发送接收的新频带进行验证; 生成单元，被配置为生成新频带中的帧; 以及发送单元，被配置为通过使用所述帧来发送通过所述新频带的数据，其中，所述帧包括其中包括与所述终端相对应的数据的数据字段，以及控制字段，其中用于接收包括在所述数据字段中的数据的控制信息 包括终端，并且其中控制字段包括VHT-STF（非常高吞吐量的短训练场），VHT-SIG（超高吞吐量信号场）A1，VHT-SIG A2，多个VHT-LTF （非常高吞吐量的长训练场）和VHT-SIG B.
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公开(公告)号：US11956781B2
公开(公告)日：2024-04-09
申请号：US17113048
申请日：2020-12-06
Inventor： Il-Gu Lee , Sok-Kyu Lee , Hyun-Kyu Chung , Dae-Sik Kim
CPC classification number: H04W72/20 , H04L5/0094 , H04L47/70 , H04W74/002 , H04L1/0002 , H04L1/0006 , H04W24/02
Abstract: A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.
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公开(公告)号：US11496187B2
公开(公告)日：2022-11-08
申请号：US17128013
申请日：2020-12-19
Inventor： Jong-Ee Oh , Minho Cheong , Sok-Kyu Lee
IPC: H04B7/0452 , H04L1/00 , H04L1/08 , H04L1/06 , H04L5/00 , H04W28/06 , H04W84/12 , H04B7/0413
Abstract: The present invention relates to a method and apparatus for transmitting and receiving data. A data transmission method from a sender terminal to a receiver terminal in a MIMO system using a variable frequency band according to one embodiment of the present invention comprises: repeatedly generating a signal field depending on a frequency band that is applied to the transmission of a data frame; generating a data field including the data; generating a data frame including the signal field and the data field; and transmitting the data frame to the receiver terminal. The present invention is advantageous in that a signal field which is transmitted together with the data being transmitted from the sender terminal to the receiver terminal in the MIMO system can be sent more efficiently.
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公开(公告)号：US20210127384A1
公开(公告)日：2021-04-29
申请号：US17113048
申请日：2020-12-06
Inventor： Il-Gu Lee , Sok-Kyu Lee , Hyun-Kyu Chung , Dae-Sik Kim
Abstract: A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.
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公开(公告)号：US10820315B2
公开(公告)日：2020-10-27
申请号：US15457891
申请日：2017-03-13
Inventor： Hee-Jung Yu , Min-Ho Cheong , Sok-Kyu Lee
Abstract: A data transmission apparatus in a communication system includes a reception unit configured to receive terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the plurality of terminals and an AP (access point); a determination unit configured to determine access timing of the terminals to the AP by using the terminal information, and generate terminal access information including information on the access timing; and a transmission unit configured to transmit the terminal access information and beacon frames to the terminals, wherein the terminals access the AP and transmit data frames to the AP, at the access timing based on the beacon frames.
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Patent Agency Ranking
公开(公告)号：US10728069B2
公开(公告)日：2020-07-28
申请号：US16050910
申请日：2018-07-31
Inventor： IL-Gu Lee , Eun-Young Choi , Sok-Kyu Lee
Abstract: A method for automatically detecting a packet mode in a wireless communication system supporting a multiple transmission mode includes: acquiring at least one of data rate information, packet length information and channel bandwidth information from a transmitted frame; and determining the packet mode on the basis of the phase rotation check result of a symbol transmitted after a signal field signal and at least one of the data rate information, the packet length information and the channel bandwidth information acquired from the transmitted frame.
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17.发明授权公开(公告)号：US10230435B2
公开(公告)日：2019-03-12
申请号：US14051355
申请日：2013-10-10
Inventor： Yun-Joo Kim , Jae-Seung Lee , Sok-Kyu Lee
IPC: H04B7/04 , H04B7/0452 , H04L1/06 , H04L1/16 , H04L1/18
Abstract: A method and apparatus of transmitting in a wireless communication system is provided. A transmitter generates a group management frame including a group information and position information and a data frame including a group control information having a group identifier for each of a plurality of groups. The group information indicates whether the receiver is a member of each of the plurality of groups. The position information indicates a position of at least one stream corresponding to at least one group of which the receiver is a member.
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公开(公告)号：US10090894B2
公开(公告)日：2018-10-02
申请号：US15486123
申请日：2017-04-12
Inventor： Jae Woo Park , Jong Ee Oh , IL-Gu Lee , Sok-Kyu Lee , Min Ho Cheong , Jee Yon Choi , Jae Seung Lee , Yun Joo Kim
IPC: H04J11/00 , H04B7/0452 , H04L1/00 , H04L1/08 , H04B7/0413 , H04L27/20 , H04L27/18 , H04L29/06 , H04W84/12 , H04L29/08
Abstract: The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.
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公开(公告)号：US09949256B2
公开(公告)日：2018-04-17
申请号：US14555425
申请日：2014-11-26
Inventor： Jeeyon Choi , Jae Woo Park , Sok-Kyu Lee
CPC classification number: H04W72/044 , H04B7/2656 , H04L1/0083 , H04L29/06068 , H04L69/08 , H04L69/22 , H04L69/324
Abstract: The present invention relates to a technique relating to a method and apparatus for generating, transmitting, and receiving a data frame having a newly proposed format in a wireless communication system. According to the technique, the method for generating a data frame in a wireless communication system comprises the following steps: generating at least one first subframe; generating at least one second subframe; and generating a data frame including the first and second subframes, wherein the first and second subframes include length information of a MAC protocol data unit (MPDU) contained in the first and second subframes, and the length information of the MPDU contained in the second subframe is zero.
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20.发明申请METHOD FOR PROTECTING OPPORTUNITY TO TRANSMIT DATA FRAME IN WIRELESS LAN SYSTEM 审中-公开用于保护在无线局域网系统中发送数据帧的机会的方法公开(公告)号：US20160143056A1
公开(公告)日：2016-05-19
申请号：US15005766
申请日：2016-01-25
Inventor： Il-Gu Lee , Sok-Kyu Lee
IPC: H04W74/04
CPC classification number: H04W74/04 , H04W74/0816 , H04W74/0875
Abstract: A method for guaranteeing a data frame transmit opportunity in a wireless LAN system having three different transmission modes includes: setting a first transmission protection interval based on a lowest transmission mode, when a node of a mode having a lowest transmission rate among the three transmission modes exists in the wireless LAN system, aggregating a data frame to be transmitted within time of the set transmission protection interval, and transmitting the data frame; and setting a second transmission protection interval based on a mode having a highest transmission rate, when only nodes of a mode having a highest transmission rate among the three transmission modes exist, aggregating a data frame to be transmitted within time of the set transmission protection interval, and transmitting the data frame.
Abstract translation: 一种用于在具有三种不同传输模式的无线LAN系统中保证数据帧发送机会的方法包括：当在三种传输模式中具有最低传输速率的模式的节点时，基于最低传输模式设置第一传输保护间隔 存在于无线LAN系统中，在设定的传输保护间隔的时间内聚合要发送的数据帧，并发送数据帧; 并且当仅存在三个传输模式中具有最高传输速率的模式的节点时，基于具有最高传输速率的模式设置第二传输保护间隔，在设置的传输保护间隔的时间内聚合要传输的数据帧 ，并发送数据帧。
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