公开(公告)号：US11895603B2

公开(公告)日：2024-02-06

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

CPC classification number: H04W56/001 ,  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：US11272541B2

公开(公告)日：2022-03-08

申请号：US16537365

申请日：2019-08-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung Kim ,  Jae Sun Cha ,  Chanho Yoon ,  Seung-Kwon Baek ,  Jae Joon Park ,  Kwang Jae Lim ,  Sung Cheol Chang

IPC: H04W4/00 ,  H04W74/08

Abstract: Provided is a method for transmitting, by a transmitter, a first data having periodicity through a channel of an unlicensed band:
The transmitter adjusts at least one of transmission timing of the first data and clear channel assessment (CCA) timing for the channel to occupy the channel. The transmitter determines whether the channel may be occupied by performing a CCA on the channel at the CCA timing. The transmitter transmits the first data through the channel at the transmission timing of the first data, when it is determined that the channel may be occupied.

公开(公告)号：US09319127B2

公开(公告)日：2016-04-19

申请号：US14455399

申请日：2014-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung Kim ,  Jae Sun Cha ,  Jae Joon Park ,  Hyun Lee ,  Kwang Jae Lim ,  Sung Cheol Chang

IPC: H04W36/00 ,  H04B7/155 ,  H04W88/04

CPC classification number: H04B7/15507 ,  H04W36/00 ,  H04W88/04

Abstract: A data relay method includes receiving a relay request from a BS, and when the relay request is accepted, relaying data between the BS and at least one external terminal, or the data relay method includes determining relaying between a first terminal among a plurality of terminals, and other remaining terminals excluding the first terminal among the plurality of terminals, and relaying data between the first terminal and the other remaining terminals.

Abstract translation: 数据中继方法包括从BS接收中继请求，当接收到中继请求时，BS与至少一个外部终端之间的中继数据或数据中继方法包括：确定多个终端中的第一终端之间的中继 ，以及在多个终端之中除了第一终端之外的其他剩余终端，并且在第一终端和其他剩余终端之间中继数据。

公开(公告)号：US10440744B2

公开(公告)日：2019-10-08

申请号：US15469558

申请日：2017-03-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Sun Cha ,  Eunkyung Kim ,  Jae Joon Park ,  Seung-Kwon Baek ,  Pyeong Jung Song ,  Chanho Yoon ,  Sung Cheol Chang

IPC: H04W74/08 ,  H04W16/14 ,  H04W88/08

Abstract: Disclosed are a base station and a channel access method performing a channel access in a unlicensed band. The channel access method includes: performing channel sensing at least once on a channel of the unlicensed band in a channel sensing period of a frame; and broadcasting a reservation signal for the channel when the channel is empty.

公开(公告)号：US09749098B2

公开(公告)日：2017-08-29

申请号：US14707821

申请日：2015-05-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Kwon Baek ,  Eunkyung Kim ,  Kwang Jae Lim ,  Jae Sun Cha ,  Sung Cheol Chang

IPC: H04W72/00 ,  H04L5/00 ,  H04W16/32 ,  H04W48/12 ,  H04W84/04

CPC classification number: H04L5/00 ,  H04L5/0058 ,  H04W16/32 ,  H04W48/12 ,  H04W84/042

Abstract: A method and apparatus of receiving system information of an SeNB, including configuring connection to an MeNB and receiving a RRC Connection Reconfiguration message including the system information of a cell included in a SCG controlled by the SeNB, and a method of sharing frame offset between a MCG controlled by an MeNB and an SCG controlled by an SeNB connected to the MeNB through non-ideal backhaul, including measuring system frame number (SFN) and subframe number (SN) of a cell included in the SCG and sharing the frame offset, which is determined based on the SFN and the SN, with the MeNB or the SeNB are provided.

公开(公告)号：US09433024B2

公开(公告)日：2016-08-30

申请号：US13944390

申请日：2013-07-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Anseok Lee ,  Eunkyung Kim ,  Wooram Shin ,  Jae Sun Cha ,  Kwang Jae Lim

IPC: H04W76/02

CPC classification number: H04W76/14

Abstract: A communication method of a terminal and a communication method of a base station for a direct communication link between terminals are disclosed. A base station schedules a reference terminal to transmit a ranging code, and schedules target terminals to receive the ranging code. The reference terminal measures the ranging code received from the target terminals, and transmits a ranging code measurement result to the base station. The base station selects a terminal from among the target terminals to form the direct communication link with the reference terminal among the target terminals based on the ranging code measurement result.

Abstract translation: 公开了一种用于终端之间的直接通信链路的终端的通信方法和基站的通信方法。 基站调度参考终端来发送测距码，并且调度目标终端以接收测距码。 参考终端测量从目标终端接收的测距码，并将测距码测量结果发送到基站。 基站从目标终端中选择终端，基于测距码测量结果，与目标终端之间的基准终端形成直接通信链路。

公开(公告)号：US09338808B2

公开(公告)日：2016-05-10

申请号：US14073180

申请日：2013-11-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung Kim ,  Anseok Lee ,  Wooram Shin ,  Jae Sun Cha ,  Kwang Jae Lim

IPC: H04W76/02 ,  H04W8/00

CPC classification number: H04W76/14 ,  H04W8/005

Abstract: A method for a first terminal communicating with a base station to perform direct communication with a second terminal is provided. The first terminal determines first timing for transmitting or receiving a first signal to or from the base station. Next, the first terminal determines second timing for transmitting a second signal for terminal discovery to the second terminal. When the first timing and the second timing overlap, the first terminal then changes either the first timing or the second timing.

Abstract translation: 提供了一种用于与基站通信以与第二终端进行直接通信的第一终端的方法。 第一终端确定向基站发送或从基站接收第一信号的第一定时。 接下来，第一终端确定用于向第二终端发送用于终端发现的第二信号的第二定时。 当第一定时和第二定时重叠时，第一终端然后改变第一定时或第二定时。

公开(公告)号：US20140038580A1

公开(公告)日：2014-02-06

申请号：US14050989

申请日：2013-10-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Won-Ik KIM ,  Eunkyung Kim ,  Sung Kyung Kim ,  Sung Cheol Chang ,  Jae Sun Cha ,  Mi Young Yun ,  Hyun Lee ,  Chul Sik Yoon ,  Kwang Jae Lim

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04W8/22 ,  H04W24/04 ,  H04W84/20 ,  H04W88/04

Abstract: A method of performing communication of a terminal includes the terminal transmitting state information thereof to a base station, and the terminal receiving a mode change request from the base station when the terminal is selected by the base station.

Abstract translation: 执行终端的通信的方法包括终端向基站发送其状态信息，并且终端在由基站选择终端时从基站接收模式改变请求。

公开(公告)号：US20140024384A1

公开(公告)日：2014-01-23

申请号：US13944390

申请日：2013-07-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Anseok LEE ,  Eunkyung Kim ,  Wooram Shin ,  Jae Sun Cha ,  Kwang Jae Lim

IPC: H04W76/02

CPC classification number: H04W76/14

Abstract: A communication method of a terminal and a communication method of a base station for a direct communication link between terminals are disclosed. A base station schedules a reference terminal to transmit a ranging code, and schedules target terminals to receive the ranging code. The reference terminal measures the ranging code received from the target terminals, and transmits a ranging code measurement result to the base station. The base station selects a terminal from among the target terminals to form the direct communication link with the reference terminal among the target terminals based on the ranging code measurement result.

Abstract translation: 公开了一种用于终端之间的直接通信链路的终端的通信方法和基站的通信方法。 基站调度参考终端来发送测距码，并且调度目标终端以接收测距码。 参考终端测量从目标终端接收到的测距码，并将测距码测量结果发送到基站。 基站从目标终端中选择终端，基于测距码测量结果，与目标终端之间的基准终端形成直接通信链路。

公开(公告)号：US09526122B2

公开(公告)日：2016-12-20

申请号：US13940711

申请日：2013-07-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Wooram Shin ,  Eunkyung Kim ,  Anseok Lee ,  Jae Sun Cha ,  Kwang Jae Lim ,  DongSeung Kwon

IPC: H04W76/02 ,  H04W88/08

CPC classification number: H04W76/021 ,  H04W76/11 ,  H04W76/14 ,  H04W88/08

Abstract: A communication method for a third device that controls a first link established directly between a first device and a second device is provided. The third device allocates a first link identifier for identifying the first link. The third device transmits first information including the first link identifier to the first device and the second device. The third device receives, from the first device and the second device, second information including allocation acceptance information indicating the acceptance or rejection of allocation of the first link identifier.

Abstract translation: 提供了一种用于控制直接在第一设备和第二设备之间建立的第一链路的第三设备的通信方法。 第三设备分配用于识别第一链路的第一链路标识符。 第三设备向第一设备和第二设备发送包括第一链路标识符的第一信息。 第三设备从第一设备和第二设备接收包括指示接受或拒绝第一链路标识符的分配的分配接受信息的第二信息。