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    • 31. 发明授权
    • Method and apparatus for transmitting/receiving packet in wireless communication system
    • 用于在无线通信系统中发送/接收分组的方法和装置
    • US09167476B2
    • 2015-10-20
    • US13047477
    • 2011-03-14
    • Yun-Joo KimSok-Kyu Lee
    • Yun-Joo KimSok-Kyu Lee
    • H04W4/00H04W28/06H04W4/06
    • H04W72/005H04L45/74H04L69/22H04W4/06H04W28/06H04W72/0406
    • A method for simultaneously transmitting packets having different lengths to two or more users in a wireless communication system includes: generating the packets to transmit to the respective users, the packets containing information on the maximum transmission length of the packets having different lengths; and simultaneously transmitting the generated packets to the respective users. The maximum transmission length is represented by the number of symbols, and each of the packets sequentially contains control information required for transmitting the packet, data, a tail field, and a PHY pad field, and is generated by inserting a MAC pad between the control information and the data such that the tail field and the PHY pad field are positioned at the last byte of the last symbol of the maximum transmission length.
    • 一种用于在无线通信系统中同时向两个或多个用户发送具有不同长度的分组的方法包括:生成要发送给各个用户的分组,所述分组包含关于具有不同长度的分组的最大传输长度的信息; 同时将生成的分组发送给各个用户。 最大传输长度由符号数表示,并且每个分组顺序地包含用于发送分组所需的控制信息,数据,尾部字段和PHY填充字段,并且通过在控制器之间插入MAC垫来生成 信息和数据,使得尾部场和PHY垫场位于最大传输长度的最后一个符号的最后一个字节。
    • 34. 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。
    • 36. 发明授权
    • Method for managing resources in high capacity wireless communication system
    • 高容量无线通信系统资源管理方法
    • US08730884B2
    • 2014-05-20
    • US12908309
    • 2010-10-20
    • Yun-Joo Kim
    • Yun-Joo Kim
    • H04W4/00H04L12/413
    • H04W74/0816H04B7/0452H04L1/1614H04L1/1671H04W28/06H04W72/00H04W74/004H04W74/006
    • Provided is a method for managing resource in a high capacity wireless communication system capable of communicating with two or more users in a multi-input multi-output (MIMO) scheme when a base station transmits data. The includes: transmitting a MU-MIMO request-to-send (RTS) message to stations intending to transmit data in the MIMO scheme, and sequentially receiving a clear-to-send (CTS) message from stations intending to receive the data; transmitting a transmission ACK message to the stations, wherein the transmission ACK message includes information which prevents data collision during a time of data transmission to the stations and ACK signal; and configuring data to be transmitted to the stations into aggregated packets (A-MPDUs), transmitting the A-MPDUs to the stations in the MIMO scheme, and receiving a block ACK message from the stations.
    • 提供了一种用于在基站发送数据时能够以多输入多输出(MIMO)方案与两个以上的用户通信的高容量无线通信系统中的资源的方法。 包括:向正在MIMO方案中发送数据的站发送MU-MIMO请求发送(RTS)消息,以及顺序地接收来自旨在接收数据的站的清除发送(CTS)消息; 向所述站发送传输ACK消息,其中所述传输ACK消息包括在数据传输到所述站的时间期间防止数据冲突的信息和ACK信号; 并将要发送到站的数据配置为聚合报文(A-MPDU),在MIMO方案中将A-MPDU发送到站,以及从站接收块ACK消息。
    • 39. 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。