公开(公告)号：US20150181561A1

公开(公告)日：2015-06-25

申请号：US14577219

申请日：2014-12-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Hyung OH ,  Gwang Zeen KO ,  Hyun Duk KANG ,  Igor KIM ,  Myung Sun SONG

IPC: H04W72/04

CPC classification number: H04W80/02 ,  H04L1/1861 ,  H04W28/06 ,  H04W72/00 ,  H04W84/12

Abstract: Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).

Abstract translation: 提供了在接入点（AP）中执行的帧发送方法，在终端中执行的帧接收方法和AP。 在AP中执行的帧发送方法包括：当要发送到除了第一终端之外的至少一个终端的数据单元在AP中时，获取用于发送第一终端的第一数据单元的信道，生成物理层收敛 程序（PLCP）协议数据单元（PPDU），包括要发送到至少一个终端的第一数据单元和数据单元，以及将PPDU发送到第一终端和至少一个终端。 因此，可以提高无线局域网（WLAN）的性能。

公开(公告)号：US20150139031A1

公开(公告)日：2015-05-21

申请号：US14548826

申请日：2014-11-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Duk KANG ,  Gwang Zeen KO ,  Igor KIM ,  Myung Sun SONG ,  Jin Hyung OH

IPC: H04W48/16 ,  H04W8/00

CPC classification number: H04W16/10 ,  H04W84/12 ,  H04W92/20

Abstract: Disclosed is a discovery method of neighbor node in a wireless local area network (LAN). The discovery method includes performing a scanning procedure, performing an authentication procedure with a first terminal detected through the scanning procedure, performing an association procedure with the first terminal in which the authentication procedure has been performed, acquiring, from the first terminal, a scanning result of a scanning procedure having been performed in the first terminal, and generating a first AP list based on a scanning result of a scanning procedure having been performed in the first AP and the scanning result of the scanning procedure having been performed in the first terminal Therefore, interference problems between neighbor access points (APs) may be solve.

Abstract translation: 公开了无线局域网（LAN）中的邻居节点的发现方法。 该发现方法包括执行扫描过程，对通过扫描过程检测到的第一终端执行认证过程，对已执行认证过程的第一终端执行关联过程，从第一终端获取扫描结果 已经在第一终端中执行了扫描过程，并且基于在第一AP中执行的扫描过程的扫描结果和在第一终端中执行的扫描过程的扫描结果来生成第一AP列表。因此 可以解决邻居接入点（AP）之间的干扰问题。

公开(公告)号：US20140146736A1

公开(公告)日：2014-05-29

申请号：US14010760

申请日：2013-08-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Igor KIM ,  Jinhyung OH ,  Gwangzeen KO ,  Myung Sun SONG

IPC: H04W4/08

CPC classification number: H04W4/08

Abstract: An apparatus for grouping a plurality of stations in a multi-transmission environment includes an SNR (Signal to Noise Ratio) measuring unit configured to measure SNR values of the stations existing in the multi-transmission environment. Further, the apparatus includes a grouping unit configured to group the stations into several subgroups depending on the SNR values, wherein a leader is defined in each subgroup. Furthermore, the apparatus includes a control unit configured to determine an MCS (Modulation and Coding Scheme) intended for each subgroup and form different A-MPDU (Aggregated MAC Protocol Data Unit) for each subgroup separately to send to each subgroup in a multicast transmission.

Abstract translation: 用于在多传输环境中对多个站进行分组的装置包括：被配置为测量存在于多传输环境中的站的SNR值的SNR（信噪比）测量单元。 此外，该设备包括分组单元，其被配置为根据SNR值将站分组成几个子组，其中在每个子组中定义了一个引导者。 此外，该装置包括：控制单元，被配置为确定针对每个子组的MCS（调制和编码方案），并且针对每个子组分别形成用于在多播传输中发送给每个子组的不同A-MPDU（聚合MAC协议数据单元）。