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    • 3. 发明授权
    • Apparatus and method for transmitting/receiving data in communication system
    • 在通信系统中发送/接收数据的装置和方法
    • US08824402B2
    • 2014-09-02
    • US13446448
    • 2012-04-13
    • Jee-Yon ChoiJae-Seung LeeJong-Ee OhSok-Kyu Lee
    • Jee-Yon ChoiJae-Seung LeeJong-Ee OhSok-Kyu Lee
    • H04W4/00H04B7/06H04B7/04H04W48/16H04W84/12
    • H04B7/0617H04B7/0417H04B7/0639H04B7/0643H04W48/16H04W84/12
    • Disclosed are an apparatus and a method for transmitting/receiving data by acquiring channel information of a terminal receiving data in a communication system providing services to users through beamforming according to a multi-input multi-output (MIMO) scheme, wherein so as to acquire channel information of the terminal for transmitting/receiving data through the beamforming according to the MIMO scheme, a null data packet announcement (NDPA) frame and a null data packet (NDP) frame are transmitted to the terminal, the beamforming frame is received from the terminal as a response of the null data packet announcement frame and the null data packet frame, and the channel information of the terminal included in the beamforming frame and the indication information on which the null data packet frame included in a control information field of the beamforming frame is normally received are checked.
    • 公开了一种通过获取通过根据多输入多输出(MIMO)方案通过波束形成向用户提供服务的通信系统中的接收数据的终端的信道信息来发送/接收数据的装置和方法,其中, 通过根据MIMO方案的波束形成发送/接收数据的终端的信道信息,空值数据分组通知(NDPA)帧和空数据分组(NDP)帧被发送到终端,波束形成帧从 终端作为空数据分组公告帧和空数据分组帧的响应,以及包括在波束成形帧中的终端的信道信息和包括在波束形成的控制信息字段中的空数据分组帧的指示信息 正常接收的帧被检查。
    • 4. 发明申请
    • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN COMMUNICATION SYSTEM
    • 用于在通信系统中发送/接收数据的装置和方法
    • US20120263126A1
    • 2012-10-18
    • US13446448
    • 2012-04-13
    • Jee-Yon CHOIJae-Seung LeeJong-Ee OhSok-Kyu Lee
    • Jee-Yon CHOIJae-Seung LeeJong-Ee OhSok-Kyu Lee
    • H04W72/04
    • H04B7/0617H04B7/0417H04B7/0639H04B7/0643H04W48/16H04W84/12
    • Disclosed are an apparatus and a method for transmitting/receiving data by acquiring channel information of a terminal receiving data in a communication system providing services to users through beamforming according to a multi-input multi-output (MIMO) scheme, wherein so as to acquire channel information of the terminal for transmitting/receiving data through the beamforming according to the MIMO scheme, a null data packet announcement (NDPA) frame and a null data packet (NDP) frame are transmitted to the terminal, the beamforming frame is received from the terminal as a response of the null data packet announcement frame and the null data packet frame, and the channel information of the terminal included in the beamforming frame and the indication information on which the null data packet frame included in a control information field of the beamforming frame is normally received are checked.
    • 公开了一种通过获取通过根据多输入多输出(MIMO)方案通过波束形成向用户提供服务的通信系统中的接收数据的终端的信道信息来发送/接收数据的装置和方法,其中, 通过根据MIMO方案的波束形成发送/接收数据的终端的信道信息,空值数据分组通知(NDPA)帧和空数据分组(NDP)帧被发送到终端,波束形成帧从 终端作为空数据分组公告帧和空数据分组帧的响应,以及包括在波束成形帧中的终端的信道信息和包括在波束形成的控制信息字段中的空数据分组帧的指示信息 正常接收的帧被检查。
    • 7. 发明授权
    • Method for protecting data in a MU-MIMO based wireless communication system
    • 一种用于在基于MU-MIMO的无线通信系统中保护数据的方法
    • US08861495B2
    • 2014-10-14
    • US13511363
    • 2010-11-24
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • H04W72/14H04B7/04H04W74/08
    • H04B7/0452H04W74/0816
    • The present invention relates to a method for protecting MU-MIMO (Multi User-Multiple Input Multiple Output) data through a multi-RTS/CTS frame exchange in a MU-MIMO based wireless communication system. The method of the present invention comprises: a process where an indicator for VHT data protection is added to an RTS frame, using the structure of an RTS/CTS frame for an existing legacy terminal during the multi RTS/CTS frame exchange; a process where an access point designates and then transmits the duration period of the RTS frame while transmitting the RTS frame; and a process where wireless terminals up to the (n−1)th terminal designate the duration period of the CTS frame as ‘0’ and send the designated duration period, while only the n-th wireless terminal designates NAV for data protection.
    • 本发明涉及在基于MU-MIMO的无线通信系统中通过多RTS / CTS帧交换来保护MU-MIMO(多用户多输入多输出)数据的方法。 本发明的方法包括:在多RTS / CTS帧交换期间,使用RTS / CTS帧的结构为现有的传统终端,将用于VHT数据保护的指示符添加到RTS帧的过程; 其中接入点指定然后在发送RTS帧的同时发送RTS帧的持续时间段的过程; 以及直到第(n-1)个终端的无线终端将CTS帧的持续时间指定为“0”并发送指定的持续时间的过程,而仅第n个无线终端指定用于数据保护的NAV。
    • 8. 发明申请
    • METHODS FOR TRANSMITTING A FRAME IN A MULTI-USER BASED WIRELESS COMMUNICATION SYSTEM
    • 在多用户无线通信系统中发送帧的方法
    • US20120230242A1
    • 2012-09-13
    • US13478069
    • 2012-05-22
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • H04W4/06
    • H04B7/0452H04W4/08H04W8/186H04W84/12
    • The present invention relates to methods for transmitting a frame by grouping a plurality of wireless terminals in a multiuser based wireless communication system. The present invention includes a method for transmitting a frame by including information about multiple receiver terminals in a MAC frame, another method for transmitting a frame by allocating group addresses and then using a corresponding group address for frame transmission, and yet another method for transmitting a frame by using a unique group sequence number that is allocated to each group and group control information that contains bitmap information. The group control information is included in a destination address field of a MAC layer, or in a signal field of a physical layer, or in both the MAC layer and the physical layer.
    • 本发明涉及通过在多用户无线通信系统中对多个无线终端进行分组来发送帧的方法。 本发明包括一种通过在MAC帧中包含关于多个接收机终端的信息来发送帧的方法,用于通过分配组地址然后使用相应的组地址进行帧传输来发送帧的另一种方法,以及另一种用于发送帧 帧,通过使用分配给每个组的唯一组序列号和包含位图信息的组控制信息。 组控制信息包括在MAC层的目的地地址字段中,或者在物理层的信号字段中,或MAC层和物理层中。
    • 9. 发明授权
    • Methods for transmitting a frame in a multi-user based wireless communication system
    • 用于在基于多用户的无线通信系统中发送帧的方法
    • US08989161B2
    • 2015-03-24
    • US13478069
    • 2012-05-22
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • H04B7/04H04W4/08H04W8/18
    • H04B7/0452H04W4/08H04W8/186H04W84/12
    • The present invention relates to methods for transmitting a frame by grouping a plurality of wireless terminals in a multiuser based wireless communication system. The present invention includes a method for transmitting a frame by including information about multiple receiver terminals in a MAC frame, another method for transmitting a frame by allocating group addresses and then using a corresponding group address for frame transmission, and yet another method for transmitting a frame by using a unique group sequence number that is allocated to each group and group control information that contains bitmap information. The group control information is included in a destination address field of a MAC layer, or in a signal field of a physical layer, or in both the MAC layer and the physical layer.
    • 本发明涉及通过在多用户无线通信系统中对多个无线终端进行分组来发送帧的方法。 本发明包括一种通过在MAC帧中包含关于多个接收机终端的信息来发送帧的方法,用于通过分配组地址然后使用相应的组地址进行帧传输来发送帧的另一种方法,以及另一种用于发送帧 帧,通过使用分配给每个组的唯一组序列号和包含位图信息的组控制信息。 组控制信息包括在MAC层的目的地地址字段中,或者在物理层的信号字段中,或MAC层和物理层中。
    • 10. 发明申请
    • METHOD FOR PROTECTING DATA IN A MU-MIMO BASED WIRELESS COMMUNICATION SYSTEM
    • 用于在基于MU-MIMO的无线通信系统中保护数据的方法
    • US20120236840A1
    • 2012-09-20
    • US13511363
    • 2010-11-24
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • Yun-Joo KimJae-Seung LeeSok-Kyu Lee
    • H04W84/12
    • H04B7/0452H04W74/0816
    • The present invention relates to a method for protecting MU-MIMO (Multi User-Multiple Input Multiple Output) data through a multi-RTS/CTS frame exchange in a MU-MIMO based wireless communication system. The method of the present invention comprises: a process where an indicator for VHT data protection is added to an RTS frame, using the structure of an RTS/CTS frame for an existing legacy terminal during the multi RTS/CTS frame exchange; a process where an access point designates and then transmits the duration period of the RTS frame while transmitting the RTS frame; and a process where wireless terminals up to the (n-1)th terminal designate the duration period of the CTS frame as ‘0’ and send the designated duration period, while only the n-th wireless terminal designates NAV for data protection.
    • 本发明涉及在基于MU-MIMO的无线通信系统中通过多RTS / CTS帧交换来保护MU-MIMO(多用户多输入多输出)数据的方法。 本发明的方法包括:在多RTS / CTS帧交换期间,使用RTS / CTS帧的结构为现有的传统终端,将用于VHT数据保护的指示符添加到RTS帧的过程; 其中接入点指定然后在发送RTS帧的同时发送RTS帧的持续时间段的过程; 以及直到第(n-1)个终端的无线终端将CTS帧的持续时间指定为“0”并发送指定的持续时间的过程,而仅第n个无线终端指定用于数据保护的NAV。