公开(公告)号：US10051625B2

公开(公告)日：2018-08-14

申请号：US14406068

申请日：2013-06-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee Jung Yu ,  Min Ho Cheong ,  Jae Seung Lee ,  Hyoung Jin Kwon ,  Sok Kyu Lee

IPC: H04W72/04 ,  H04L12/24 ,  H04W84/12

Abstract: Provided is an apparatus and method for communication in a wireless local area network (LAN) system supporting a multi-bandwidth in which a communication apparatus supporting a multi-bandwidth includes generating a base frame based on at least one of a first bandwidth having the lowest signal-to-noise ratio (SNR) among predetermined bandwidths and a second bandwidth that is two times greater than the first bandwidth, configuring a duplication mode frame based on the base frame, and transmitting the duplication mode frame through a plurality of bands.

公开(公告)号：US09832704B2

公开(公告)日：2017-11-28

申请号：US14591881

申请日：2015-01-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Je Hun Lee ,  Joon Soo Lee ,  Sok Kyu Lee

IPC: H04W40/04 ,  H04W88/06 ,  H04W40/02 ,  H04W28/02 ,  H04W40/16 ,  H04W48/18 ,  H04L12/707

CPC classification number: H04W40/02 ,  H04L45/24 ,  H04W28/0284 ,  H04W40/04 ,  H04W40/16 ,  H04W48/18 ,  H04W88/06

Abstract: A method and user terminal for dynamically controlling routing are provided. The method may provide an effective routing mechanism in a system to which a plurality of radio access technologies (RATs) are applied. The method may perform routing based on characteristics of the RATs, a degree of a generated traffic load, a user preference of a RAT, and the like.

公开(公告)号：US09794929B2

公开(公告)日：2017-10-17

申请号：US14438184

申请日：2013-10-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Ho Cheong ,  Hyoung Jin Kwon ,  Jae Seung Lee ,  Jae woo Park ,  Sok Kyu Lee

IPC: H04W72/04 ,  H04W56/00 ,  H04W84/12 ,  H04W74/00

CPC classification number: H04W72/044 ,  H04W56/0015 ,  H04W74/006 ,  H04W84/12

Abstract: Provided is a method and apparatus for allocating resources in a wireless local area network (WLAN) system, the method including determining a restricted access bandwidth (RAB) interval based on at least a bandwidth or a partial bandwidth among a plurality of bandwidths, and setting a restricted access window (RAW) of a time domain based on the RAB interval.

公开(公告)号：US09781741B2

公开(公告)日：2017-10-03

申请号：US14409456

申请日：2013-06-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyoung Jin Kwon ,  Jae Seung Lee ,  Min Ho Cheong ,  Hee Jung Yu ,  Sok Kyu Lee

IPC: H04B7/00 ,  H04W72/12 ,  H04W72/04 ,  H04W84/12 ,  H04W74/04

CPC classification number: H04W72/1289 ,  H04W72/0446 ,  H04W74/04 ,  H04W84/12

Abstract: An apparatus and a method of controlling slot-based channel access by an access point (AP) to manage a network in a wireless local area network (WLAN) environment and a slot-based channel access terminal are disclosed. A slot-based channel access control apparatus of a WLAN system according to an exemplary embodiment determines one of each terminal and a group of terminals as a slot allocation target, allocates a slot defined in a beacon interval to the determined terminal or group to distinguish channel access time, and transmits a beacon including information on the allocated slot.

公开(公告)号：US09674860B2

公开(公告)日：2017-06-06

申请号：US14178960

申请日：2014-02-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Gu Park ,  Sok Kyu Lee

IPC: H04W72/12 ,  H04N21/85 ,  H04N21/8547 ,  H04L12/851 ,  H04L12/841 ,  H04L12/823 ,  H04L29/08

CPC classification number: H04W72/1242 ,  H04L47/2441 ,  H04L47/28 ,  H04L47/32 ,  H04L67/325 ,  H04N21/8547

Abstract: Provided is a method and apparatus for efficient aggregation scheduling in a wireless local area network (WLAN) system, the apparatus including a delay setting unit to set a required delay time for each access category (AC), a storing unit to store a traffic identification (TID) of a packet in a queue of a corresponding AC when the packet arrives, a delay time calculator to calculate a maximum delay time predicted when the packet arriving at the queue is configured to be an A-MPDU and the configured A-MPDU is transmitted, and an A-MPDU configuring unit to compare the calculated maximum delay time and the required delay time, and configure a corresponding A-MPDU when the calculated maximum delay time is greater than the required delay time.

公开(公告)号：US09641412B2

公开(公告)日：2017-05-02

申请号：US14663796

申请日：2015-03-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hong Soog Kim ,  Sok Kyu Lee

IPC: H04L1/00 ,  H04L12/26 ,  H04W72/12 ,  H04W84/12

CPC classification number: H04L43/0876 ,  H04L43/0852 ,  H04W72/1215 ,  H04W84/12

Abstract: Provided is a communication control apparatus for controlling data transmission performed by a first communication module and a second communication module, each using a different communication scheme, the apparatus including a receiver to receive traffic information associated with the first communication module, an operating unit to calculate, based on the traffic information, a slack time, starting from a first point in time and ending at a second point in time at which traffic relating to the first communication module occurs, and a transmitter to transmit the slack time to the second communication module, wherein the first point in time is a point in time at which the second communication module requests the slack time from the communication control apparatus in order to transmit data.

公开(公告)号：US09622218B2

公开(公告)日：2017-04-11

申请号：US14564032

申请日：2014-12-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Seung Lee ,  Hyoung Jin Kwon ,  Min Ho Cheong ,  Sok Kyu Lee

IPC: H04W72/04 ,  H04W84/12 ,  H04W28/16 ,  H04W24/02

CPC classification number: H04W72/04 ,  H04W24/02 ,  H04W28/16 ,  H04W84/12

Abstract: A method and system for managing a channel in a wireless local area network is disclosed. The method includes detecting adjacent access points, transmitting a resource allocation request frame including candidate channel information which the first access points wants to a master access point among the detected adjacent access points, receiving a resource allocation response frame which is a response with respect to the resource allocation request frame from the master access point, and configuring the BSS based on channel related information included in the resource allocation response frame. Accordingly, performance of the wireless local area network can be improved.

公开(公告)号：US09585146B2

公开(公告)日：2017-02-28

申请号：US14592642

申请日：2015-01-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon Soo Lee ,  Sok Kyu Lee

IPC: H04W72/04 ,  H04W74/00 ,  H04W76/02 ,  H04W74/04 ,  H04W74/08

CPC classification number: H04W72/0446 ,  H04W74/002 ,  H04W74/04 ,  H04W74/0825

Abstract: A method of assigning a slot and accessing a channel in a wireless local area network (WLAN) is provided. A station may attempt to access a channel based on a plurality of candidate slots assigned to the station.

Abstract translation: 提供了一种在无线局域网（WLAN）中分配时隙和访问信道的方法。 站可以尝试基于分配给站的多个候选时隙来访问信道。

公开(公告)号：US09516592B2

公开(公告)日：2016-12-06

申请号：US14407385

申请日：2013-06-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyoung Jin Kwon ,  Jae Seung Lee ,  Min Ho Cheong ,  Hee Jung Yu ,  Sok Kyu Lee

IPC: H04W52/02 ,  H04W84/12

CPC classification number: H04W52/0216 ,  H04W52/0219 ,  H04W84/12 ,  Y02D70/142

Abstract: Disclosed is a technology that enables an access point, configured to manage a network, to control a transmission schedule of buffered data and enables a terminal to obtain information associated with the transmission schedule in a wireless local area network (WLAN) environment. An apparatus for controlling a transmission schedule of buffered data in a WLAN according to an embodiment may group terminals based on at least one of a service characteristic and a traffic characteristic of each of the terminals, assign group information to each of the grouped groups to wake up in a different time, and transmit at least one of delivery traffic indication map (DTIM) information and the buffered data based on the assigned group information.

Abstract translation: 公开了一种技术，其使能被配置为管理网络的接入点来控制缓冲数据的传输调度并使得终端能够在无线局域网（WLAN）环境中获得与传输调度相关联的信息。 根据实施例的用于控制WLAN中的缓冲数据的传输调度的装置可以基于每个终端的服务特性和业务特性中的至少一个来对终端进行分组，将组信息分配给每个分组组以唤醒 并且基于所分配的组信息发送传送业务指示映射（DTIM）信息和缓冲数据中的至少一个。

公开(公告)号：US09357570B2

公开(公告)日：2016-05-31

申请号：US14067772

申请日：2013-10-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyoung Jin Kwon ,  Min Ho Cheong ,  Jae Seung Lee ,  Sok Kyu Lee

IPC: H04W4/00 ,  H04W76/02 ,  H04W74/08 ,  H04W92/20 ,  H04W72/12 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W76/10 ,  H04W72/12 ,  H04W74/0808 ,  H04W76/15 ,  H04W84/12 ,  H04W88/08 ,  H04W92/20

Abstract: An operating method of an access point (AP) for a coexistence of basic service sets (BSSs) having different bandwidths includes detecting at least one of a first signal having a channel bandwidth of the AP and a second signal having a channel bandwidth narrower than the channel bandwidth of the AP, establishing a BSS having the channel bandwidth of the AP, based on a result of the detecting, and reporting the establishment of the BSS to an adjacent BSS.

Abstract translation: 用于具有不同带宽的基本服务集（BSS）的共存的接入点（AP）的操作方法包括：检测具有AP的信道带宽的第一信号和具有窄于该信道带宽的信道带宽的第二信号中的至少一个 AP的信道带宽，基于检测结果建立具有AP的信道带宽的BSS，并将BSS的建立报告给相邻的BSS。