公开(公告)号：US09629168B2

公开(公告)日：2017-04-18

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: H04W4/00 ,  H04W72/08 ,  H04W74/02 ,  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.

公开(公告)号：US09503304B2

公开(公告)日：2016-11-22

申请号：US14842623

申请日：2015-09-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Il-Gu Lee ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC: H04L27/34 ,  H04L27/00 ,  H04L27/22 ,  H04W72/04 ,  H04L5/00 ,  H04L27/227 ,  H04L27/26

CPC classification number: H04L27/2601 ,  H04L5/0048 ,  H04L27/0012 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/3444 ,  H04W72/042 ,  H04W84/12

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.

公开(公告)号：US09432940B2

公开(公告)日：2016-08-30

申请号：US13779475

申请日：2013-02-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il-Gu Lee ,  Sok-Kyu Lee ,  Hyun-Kyu Chung ,  Dae-Sik Kim

IPC: H04W4/00 ,  H04W52/02 ,  H04W52/26 ,  H04L1/16

CPC classification number: H04W52/262 ,  H04B7/0626 ,  H04L1/1671 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/26

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.

公开(公告)号：US09154359B2

公开(公告)日：2015-10-06

申请号：US14676551

申请日：2015-04-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il-Gu Lee ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC: H04L27/22 ,  H04L27/34 ,  H04L27/227 ,  H04L5/00

CPC classification number: H04L27/2601 ,  H04L5/0048 ,  H04L27/0012 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/3444 ,  H04W72/042 ,  H04W84/12

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.

公开(公告)号：US09001637B2

公开(公告)日：2015-04-07

申请号：US14044803

申请日：2013-10-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il-Gu Lee ,  Eun-Young Choi ,  Sok-Kyu Lee

IPC: H04J9/00 ,  H04B7/208 ,  H04B7/216 ,  H04B7/12 ,  H04W72/04 ,  H04L27/00 ,  H04L27/22

CPC classification number: H04L27/2601 ,  H04L5/0048 ,  H04L27/0012 ,  H04L27/22 ,  H04L27/2273 ,  H04L27/3444 ,  H04W72/042 ,  H04W84/12

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.

Abstract translation: 一种在支持多传输模式的无线通信系统中自动检测分组模式的方法包括：从发送的帧中获取数据速率信息，分组长度信息和信道带宽信息中的至少一个; 以及根据在信号场信号之后发送的符号的相位旋转检查结果和从发送帧获取的数据速率信息，分组长度信息和信道带宽信息中的至少一个来确定分组模式。

公开(公告)号：US08948148B2

公开(公告)日：2015-02-03

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: H04W4/00 ,  H04B7/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

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：US08861470B2

公开(公告)日：2014-10-14

申请号：US13722996

申请日：2012-12-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Min-Ho Cheong ,  Hee-Jung Yu ,  Sok-Kyu Lee

IPC: H04W4/00 ,  H04W72/04 ,  H04W16/14 ,  H04W84/12

CPC classification number: H04W72/04 ,  H04W16/14 ,  H04W84/12

Abstract: A resource allocation apparatus in a communication system includes an identification unit configured to identify a new frequency band for transmission and reception of data between a plurality of terminals and a first access point, and identify a first frequency band which is being used by a second access point in the new frequency band; a setting unit configured to divide the new frequency band into sub bands of a basic frequency band, and set priorities of the sub bands; and an allocation unit configured to allocate the sub bands in correspondence to the priorities, for transmission and reception of data between the plurality of terminals and the first access point.

Abstract translation: 通信系统中的资源分配装置包括：识别单元，被配置为识别用于多个终端与第一接入点之间的数据的发送和接收的新频带，并且识别正在被第二接入使用的第一频带 指向新频段; 设置单元，被配置为将所述新频带划分为基本频带的子频带，并设置所述子频带的优先级; 以及分配单元，被配置为对应于所述优先级分配所述子带，用于在所述多个终端与所述第一接入点之间发送和接收数据。