公开(公告)号：US20170273004A1

公开(公告)日：2017-09-21

申请号：US15402364

申请日：2017-01-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Joon PARK ,  Myung Eun KIM ,  Sun Jin KIM ,  Myung Nam BAE ,  Dong Beom SHIN ,  Hoe Sung YANG ,  Kang Bok LEE ,  Sang Yeoun LEE ,  Hye Sun LEE ,  Jin Chul CHOI ,  Sang Gi HONG ,  Hyo Chan BANG ,  Jong Hyun PARK

IPC: H04W40/24 ,  H04W72/04 ,  H04W40/02

CPC classification number: H04W40/248 ,  H04L45/304 ,  H04W40/02 ,  H04W72/0406 ,  H04W84/18

Abstract: Provided are an apparatus and method for performing routing for multi-hop communication. A mobile ad-hoc routing apparatus includes a control information manager configured to generate control information for managing a topology in a mobile ad-hoc network, a control information transceiver configured to transmit the control information or information for generating the control information to other nodes and receives control information of the other nodes or information for generating the control information from the other nodes, a data path manager configured to set a path for transmitting and receiving data using the generated control information and the received control information or the information for generating the control information, and a data transceiver configured to transmit and receive the data through the set path. The path for transmitting and receiving the data and a path for transmitting and receiving the control information use channels that are physically different from each other.

公开(公告)号：US20140341206A1

公开(公告)日：2014-11-20

申请号：US14278340

申请日：2014-05-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chang Sub SHIN ,  Wun-Cheol JEONG ,  Tae Joon PARK ,  Hoyong KANG ,  Cheol Sig PYO

IPC: H04J3/06 ,  H04W74/04 ,  H04W56/00

CPC classification number: H04J3/0673 ,  H04B7/2656 ,  H04W56/001 ,  H04W74/04 ,  H04W74/08 ,  H04W84/18

Abstract: According to an exemplary embodiment of the present invention, a method for time synchronization of a first node in a peer aware communication (PAC) environment is provided. The first node obtains medium access control authority by performing contention with a second node neighboring the first node. The first node adds a time synchronization offset to the first beacon frame. In addition, the first node transmits the first beacon frame in a beacon period of a superframe when obtaining the media access control authority.

Abstract translation: 根据本发明的示例性实施例，提供了一种用于对等感知通信（PAC）环境中的第一节点的时间同步的方法。 第一节点通过与第一节点相邻的第二节点执行争用来获得媒体访问控制权限。 第一节点向第一信标帧添加时间同步偏移。 此外，当获取媒体访问控制权限时，第一节点在超帧的信标周期中发送第一信标帧。

公开(公告)号：US20240188123A1

公开(公告)日：2024-06-06

申请号：US18526211

申请日：2023-12-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Sun CHA ,  Eun Hee KIM ,  Tae Joon PARK ,  Kye Seon LEE

IPC: H04W74/08

CPC classification number: H04W74/08

Abstract: Provided is a method of transmitting an anisochronous packet between devices in a time-sensitive wireless network. The method includes determining whether a whole packet to be transmitted is transmittable within a residual time of a contention period (CP), when the whole packet to be transmitted is not transmittable within the residual time of the CP, segmenting the packet to be transmitted into packet fragments with a length which is transmittable within the residual time of the CP, adding packet fragment information to the packet fragments, and transmitting one of the packet fragments within the residual time of the CP.

公开(公告)号：US20240107373A1

公开(公告)日：2024-03-28

申请号：US18230742

申请日：2023-08-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Sun CHA ,  Tae Joon PARK ,  Eun-Hee KIM ,  Kyeseon LEE

IPC: H04W28/06 ,  H04W76/10

CPC classification number: H04W28/06 ,  H04W76/10

Abstract: Provided is a communication method and an electronic device performing the communication method. The communication method includes establishing a wireless connection for transmission of data, generating a medium access control (MAC) frame including a header formed only of a frame control field based on a type of the data, and transmitting the MAC frame including the data.

公开(公告)号：US20230171718A1

公开(公告)日：2023-06-01

申请号：US17993095

申请日：2022-11-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ja Beom GU ,  Tae Joon PARK ,  Jae Sun CHA

IPC: H04W56/00

CPC classification number: H04W56/0015 ,  H04W84/12

Abstract: Disclosed herein is a method and apparatus for synchronizing timeslots in a wireless LAN system. The timeslot synchronization method includes: setting, by a first node, a timeslot synchronization reference based on a time synchronization function (TSF) value, followed by transmitting information about a reference of synchronization to a second node; and setting, by the second node, a timeslot synchronization reference based on a TSF value corresponding to the reference of synchronization based on the information transmitted from the first node.

公开(公告)号：US20220167287A1

公开(公告)日：2022-05-26

申请号：US17533833

申请日：2021-11-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Joon PARK ,  Eun Hee KIM ,  Jae Sun CHA ,  Jung Hoon OH ,  Kye Seon LEE

IPC: H04W56/00 ,  H04W28/04

Abstract: An operation method of an access point (AP) and a terminal, in a wireless time sensitive network (WTSN), may comprise: receiving, by an AP, an uplink frame from a first terminal; generating compensation indication information for compensation to be performed in the first terminal according to channel information between the first terminal and the AP estimated based on the uplink frame; transmitting the compensation indication information to the first terminal through a downlink frame; and performing, by the first terminal, the compensation based on the compensation indication message transmitted through the downlink frame.

公开(公告)号：US20140153587A1

公开(公告)日：2014-06-05

申请号：US14056359

申请日：2013-10-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Joon PARK ,  Hoyong Kang ,  Wun-Cheol Jeong ,  Chang Sub Shin ,  In Hwan Lee ,  Cheol Sig Pyo

IPC: H04J13/00

CPC classification number: H04L1/004 ,  H04L1/0071

Abstract: A method and apparatus for encoding a constant amplitude that is applied to a code division multiplexing communication system are provided. By dividing a data bit into a block unit, the receiving side can easily determine an error, and by reducing power consumption in outdoor wide area communication using a bit string of a small length in a basic unit of an input frame, efficiency can be improved, and thus a physical layer of a ubiquitous sensor network can be optimized.

Abstract translation: 提供了一种用于对应用于码分复用通信系统的恒定幅度进行编码的方法和装置。 通过将数据位分割为块单位，接收侧可以容易地确定错误，并且通过使用输入帧的基本单位中的小长度的位串减少户外广域通信中的功耗，可以提高效率 ，因此可以优化普遍存在的传感器网络的物理层。

公开(公告)号：US20180167973A1

公开(公告)日：2018-06-14

申请号：US15822403

申请日：2017-11-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Wun Cheol JEONG ,  Byeong Cheol CHOI ,  Tae Joon PARK ,  Kye Seon LEE

IPC: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0808 ,  H04W8/186 ,  H04W72/044 ,  H04W88/08

Abstract: A method of controlling a wireless communication network, performed by a server, includes determining neighbor base stations adjacent to a target base station based on a connection relationship between a plurality of base stations; setting at least two reference base stations based on hop distances between the neighbor base stations; grouping terminals connected to the target base station into at least two groups based on information of the at least two reference base stations, and allocating a different time resource to each of the at least two groups.

公开(公告)号：US20160170014A1

公开(公告)日：2016-06-16

申请号：US14533939

申请日：2014-11-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Juderk PARK ,  Yong Sun KIM ,  Wun-Cheol JEONG ,  Tae Joon PARK ,  Hoyong KANG ,  CHEOL SIG PYO

IPC: G01S13/42 ,  G01S13/86 ,  G01S7/04

CPC classification number: G01S13/42 ,  G01S5/0072 ,  G01S7/04 ,  G01S13/872

Abstract: An apparatus for wireless identification receives position information on recognition objects searched by a radar from the radar and identifies recognition objects within a communication area of antennas using signals responding to wireless frequency signals which are transmitted while changing beam directions of the antennas, for the recognition objects searched by the radar.

Abstract translation: 用于无线识别的装置从雷达接收由雷达搜索到的识别对象的位置信息，并使用响应于在改变天线的波束方向的同时发送的无线频率信号的信号识别天线的通信区域内的识别对象，以识别对象 被雷达搜索。

公开(公告)号：US20150036675A1

公开(公告)日：2015-02-05

申请号：US14065459

申请日：2013-10-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Joon PARK ,  Chang Sub SHIN ,  Wun-Cheol JEONG ,  Hoyong KANG ,  In Hwan LEE ,  Cheol Sig PYO

IPC: H04W56/00

CPC classification number: H04W56/001

Abstract: A multi-channel wireless network acquires reference time information that is commonly applied to all multi-channels and acquires packet receiving time information of a received packet on each channel basis based on the reference time information by spreading and applying the reference time information to each channel.

Abstract translation: 多信道无线网络获取通常应用于所有多信道的参考时间信息，并且基于参考时间信息在每个信道基础上获取接收分组的分组接收时间信息，并通过扩频并将参考时间信息应用于每个信道 。