公开(公告)号：US20130159458A1

公开(公告)日：2013-06-20

申请号：US13654362

申请日：2012-10-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04L29/08

CPC classification number: H04L67/10 ,  H04W48/08 ,  H04W48/10 ,  H04W72/042

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 transmitting and receiving data between the plurality of terminals and one AP (access point); a verification unit configured to verify the terminal information, group the terminals into terminal groups by using the terminal information, and verify virtual APs which respectively correspond to the terminal groups, in the AP; and a transmission unit configured to transmit beacon frames in the virtual APs, to the terminals included in the terminal groups, wherein the beacon frames include beacon interval information, beacon duration information, beacon offset information, and terminal group information.

Abstract translation: 通信系统中的数据发送装置包括：接收单元，被配置为通过用于在所述多个终端与一个AP（接入点）之间发送和接收数据的新频带从多个终端接收终端信息; 被配置为验证终端信息的验证单元，通过使用终端信息将终端分组成终端组，并且在AP中验证分别对应于终端组的虚拟AP; 以及传输单元，被配置为将虚拟AP中的信标帧发送到包括在终端组中的终端，其中信标帧包括信标间隔信息，信标持续时间信息，信标偏移信息和终端组信息。

公开(公告)号：US20150230256A1

公开(公告)日：2015-08-13

申请号：US14691215

申请日：2015-04-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/08 ,  H04W72/04

CPC classification number: H04W72/0446 ,  H04W72/0406 ,  H04W72/08 ,  H04W74/02

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.

Abstract translation: 通信系统中的数据发送装置包括：接收单元，被配置为通过新的频带从多个终端接收终端信息，用于在所述多个终端与AP（接入点）之间发送和接收数据; 确定单元，被配置为通过使用终端信息来确定终端到AP的接入定时，并且生成包括关于接入定时的信息的终端接入信息; 以及发送单元，被配置为向终端发送终端接入信息和信标帧，其中终端基于信标帧在接入定时接入AP并向AP发送数据帧。

公开(公告)号：US20130136097A1

公开(公告)日：2013-05-30

申请号：US13654359

申请日：2012-10-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/04

CPC classification number: H04W72/044 ,  H04W72/121 ,  H04W74/0808

Abstract: A data transmission apparatus in a communication system includes a reception unit configured to receive adjacent terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the terminals and one AP (access point); a verification unit configured to identify positions of the terminals within a service coverage of the AP through the adjacent terminal information, group the terminals into terminal groups through position-based grouping, and verify transmission possible times to the AP, in terminals included in the terminal groups; and a transmission unit configured to transmit the transmission possible times to the terminals included in the terminal groups through beacon frames in the AP, wherein, as the transmission possible times for the terminal groups, different time intervals are allocated in a beacon interval of the beacon frames.

Abstract translation: 通信系统中的数据发送装置包括：接收单元，被配置为通过新的频带从多个终端接收相邻的终端信息，用于在终端与一个AP（接入点）之间发送和接收数据; 验证单元，被配置为通过相邻终端信息来识别AP的服务覆盖范围内的终端的位置，通过基于位置的分组将终端组合成终端组，并且在终端中包括的终端中验证到AP的传输可能时间 团体 以及发送单元，被配置为通过AP中的信标帧向包括在终端组中的终端发送可能的时间，其中，作为终端组的传输可能时间，在信标的信标间隔中分配不同的时间间隔 框架。

公开(公告)号：US20170188360A1

公开(公告)日：2017-06-29

申请号：US15457891

申请日：2017-03-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/04

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.

公开(公告)号：US20130176986A1

公开(公告)日：2013-07-11

申请号：US13662316

申请日：2012-10-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/08

CPC classification number: H04W72/0446 ,  H04W72/0406 ,  H04W72/08 ,  H04W74/02

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.

公开(公告)号：US20130188506A1

公开(公告)日：2013-07-25

申请号：US13717622

申请日：2012-12-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04W16/14 ,  H04W72/04

Abstract: A channel allocation apparatus in a communication system includes: a measuring unit configured to measure clear channel assessments (CCA) of a plurality of stations (STAs) included in the communication system; a checking unit configured to compare the measured CCAs to preset reference CCA, and check fairness and unfairness in the STAs; and an allocating unit configured to change and allocate channels allocated to STAs corresponding to unfairness, according to the measured CCA and the reference CCA.

Abstract translation: 通信系统中的信道分配装置包括：测量单元，被配置为测量包括在通信系统中的多个站（STA）的清除信道评估（CCA）; 检查单元，被配置为将所测量的CCA与预设的参考CCA进行比较，并且检查STA中的公平性和不公平性; 以及分配单元，被配置为根据所测量的CCA和参考CCA来改变和分配分配给不对称的STA的信道。

公开(公告)号：US20130188747A1

公开(公告)日：2013-07-25

申请号：US13717639

申请日：2012-12-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04L25/02

CPC classification number: H04L25/02 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0031 ,  H04L1/0675

Abstract: An apparatus for transmitting data in a communication system includes: a receiving unit configured to receive feedback information for each of a plurality of stations (STAB) in response to a control frame; an adjusting unit configured to adjust links of the STAB at frequency channels based on the feedback information, and set optimal links for the respective STAB; and a transmitting unit configured to transmit data to the STAB through the optimal links, wherein the feedback information comprises one or more of optimal stream number information, optimal modulation and coding scheme (MCS) information, optimal bandwidth information, average signal-to-noise ratio (SNR) information, space-time information, optimal space-time block coding (STBC) information, group ID information, coding type information, and FB Tx type information.

Abstract translation: 一种用于在通信系统中发送数据的装置，包括：接收单元，被配置为响应于控制帧接收多个站（STAB）中的每一个的反馈信息; 调整单元，被配置为基于所述反馈信息来调整所述STAB在频率信道上的链路，并且为所述STAB设置最佳链路; 以及发送单元，被配置为通过所述最佳链路向所述STAB发送数据，其中所述反馈信息包括最佳流号信息，最佳调制和编码方案（MCS）信息，最佳带宽信息，平均信噪比 比率（SNR）信息，时空信息，最佳时空块编码（STBC）信息，组ID信息，编码类型信息和FB Tx类型信息。

公开(公告)号：US20130136075A1

公开(公告)日：2013-05-30

申请号：US13652412

申请日：2012-10-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L1/0026 ,  H04L1/0061 ,  H04L1/0643

Abstract: A data transmission apparatus in a communication system includes a verification unit configured to verify a basic frequency band capable of being used for transmitting and receiving data to and from a plurality of terminals, and a multi-bandwidth mode in the basic frequency band; a generation unit configured to generate data packets in the multi-bandwidth mode; and a transmission unit configured to transmit the data packets in the multi-bandwidth mode, wherein the multi-bandwidth mode includes a ½× bandwidth of the basic frequency band, a basic bandwidth, a 2× bandwidth of the basic frequency band, a 4× bandwidth of the basic frequency band and an 8× bandwidth of the basic frequency band.

Abstract translation: 一种通信系统中的数据发送装置，具备：验证部，其对能够用于从多个终端发送数据的基本频带和基本频带的多带宽模式进行验证; 生成单元，被配置为以多带宽模式生成数据分组; 以及发送单元，被配置为以多带宽模式发送数据分组，其中所述多带宽模式包括所述基本频带的1/2×带宽，基本带宽，所述基本频带的2×带宽，4 ×基本频带的带宽和基本频带的8×带宽。