公开(公告)号：US20220150971A1

公开(公告)日：2022-05-12

申请号：US17586638

申请日：2022-01-27

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: 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：US20150326371A1

公开(公告)日：2015-11-12

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: H04L5/00 ,  H04W16/32 ,  H04W48/12

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.

Abstract translation: 一种接收SeNB的系统信息的方法和装置，包括配置与MeNB的连接并接收包括由SeNB控制的SCG中包括的小区的系统信息的RRC连接重配置消息，以及共享帧间偏移的方法 由MeNB控制的MCG和由通过非理想回程连接到MeNB的SeNB控制的SCG，包括SCG中包括的小区的测量系统帧号（SFN）和子帧号（SN），并共享帧偏移，其中 基于SFN和SN确定，与MeNB或SeNB一起提供。

公开(公告)号：US20140334356A1

公开(公告)日：2014-11-13

申请号：US14274718

申请日：2014-05-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung KIM ,  Jae Sun CHA ,  Jae Joon PARK ,  Hyun LEE ,  Kwang Jae LIM ,  Sung Cheol CHANG

IPC: H04W72/08 ,  H04L5/00

CPC classification number: H04W72/082 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0053

Abstract: An exemplary embodiment of the present invention provides a resource management method performed by a coordinator for controlling interference between cells. The coordinator receives a channel state of a second base station neighboring a first base station from the first base station. The coordinator partitions a resource based on the channel state. The coordinator allocates the partitioned resource to the first base station. In addition, the coordinator transmits a first message requesting resource management to be set to the first base station. Here, the first message includes information on the allocated resource.

Abstract translation: 本发明的示例性实施例提供了一种由协调器执行的用于控制小区之间的干扰的资源管理方法。 协调器从第一基站接收与第一基站相邻的第二基站的信道状态。 协调器根据信道状态对资源进行分区。 协调器将分区资源分配给第一个基站。 此外，协调器发送请求资源管理的第一消息以设置到第一基站。 这里，第一消息包括关于分配的资源的信息。

公开(公告)号：US20140185592A1

公开(公告)日：2014-07-03

申请号：US14089200

申请日：2013-11-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun-jae KIM ,  Jung Hyun KIM ,  Jihyung KIM ,  Kwang Jae LIM ,  DongSeung KWON

IPC: H04W56/00

CPC classification number: H04W56/0015 ,  H04W56/00 ,  H04W84/18

Abstract: In a wireless communication system formed of a plurality of nodes, an arbitrary node receives messages broadcasted from neighbor nodes and calculates amounts of changes in receiving times that are differences between receiving times when the messages are currently received and receiving times when the messages are previously received with respect to the neighbor nodes. The node corrects reference time thereof based on the amounts of changes calculated with respect to the neighbor nodes.

Abstract translation: 在由多个节点形成的无线通信系统中，任意节点接收从邻居节点广播的消息，并且计算接收时间的变化量，这当前消息当前被接收的接收时间和接收时间之间的差异 相对于邻居节点。 该节点基于相对于相邻节点计算出的改变量来校正其参考时间。

公开(公告)号：US20240337760A1

公开(公告)日：2024-10-10

申请号：US18467506

申请日：2023-09-14

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Jae LIM

IPC: G01S19/43 ,  G01S19/40

CPC classification number: G01S19/43 ,  G01S19/40

Abstract: A method of a terminal may comprise: receiving satellite navigation augmentation information including phase offset correction information for a pair of two carriers among satellite navigation signals transmitted by each of satellites of a global navigation satellite system through multiple carriers; receiving satellite navigation signals from each of the satellites through the multiple carriers; calculating parameters for estimating a location of the terminal using the received satellite navigation signals; correcting the parameters based on the phase offset correction information for the pair of two carriers; and estimating the location of the terminal using the corrected parameters.

公开(公告)号：US20200278418A1

公开(公告)日：2020-09-03

申请号：US16733141

申请日：2020-01-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Jae LIM

IPC: G01S5/04 ,  H04W4/029 ,  H01Q21/08 ,  G01S5/02 ,  G05D1/10

Abstract: Disclosed is a method of identifying location information of a signal source, the method including: identifying, at a first position, first position information and first posture information of an UAV equipped with a linear array antenna; identifying, after identifying a first measured azimuth between the signal source and the antenna at the first position, a first corrected azimuth; identifying, at at least one second position, at least one piece of second position information and at least one of second posture information of the UAV; identifying, after identifying at least one second measured azimuth between the signal source and the antenna at the at least one second position, at least one second corrected azimuth; and estimating the location information of the signal source by using the first position information, the first posture information, the first corrected azimuth, the second position information, the second posture information, and the second corrected azimuth.

公开(公告)号：US20190389578A1

公开(公告)日：2019-12-26

申请号：US16403298

申请日：2019-05-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Jae LIM

IPC: B64C39/02 ,  G05D1/10 ,  H04B1/10 ,  H04B1/08 ,  H04W4/029

Abstract: Disclosed is a method of determining location information of a signal source. A method of determining location information of a signal source by using an unmanned aerial vehicle according to an embodiment of the present disclosure includes determining, at a first location, first location information and first posture information of the unmanned aerial vehicle provided with a linear array antenna; determining, at the first location, a first measurement azimuth between the signal source and the linear array antenna; determining, at least one second location, at least one second location information and at least one second posture information of the unmanned aerial vehicle having the linear array antenna; determining, at the at least one second location, at least one second measurement azimuth between the signal source and the linear array antenna; and predicting the location information of the signal source using the information described above.

公开(公告)号：US20170071010A1

公开(公告)日：2017-03-09

申请号：US15257271

申请日：2016-09-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Jae LIM ,  Yu Ro LEE

IPC: H04W72/12 ,  H04W72/04

CPC classification number: H04W72/1284 ,  H04W72/0413

Abstract: Provided are a method and an apparatus for requesting uplink persistent scheduling in a mobile communication system. A terminal generates a semi-persistent scheduling (SPS) buffer status report (BSR) including a size of data and further including at least one of an SPS transmission point in time and an SPS period after configuring SPS between the terminal and a base station, and requests SPS allocation while transmitting the SPS BSR to the base station. The size of the data indicates a size of data that are to be transmitted per SPS period.

Abstract translation: 提供了一种在移动通信系统中请求上行链路持续调度的方法和装置。 终端生成包括数据大小的半静态调度（SPS）缓冲器状态报告（BSR），并且在终端和基站之间配置SPS之后进一步包括SPS传输时间点和SPS周期中的至少一个， 并在将SPS BSR发送到基站时请求SPS分配。 数据的大小表示每个SPS周期要发送的数据的大小。

公开(公告)号：US20140133413A1

公开(公告)日：2014-05-15

申请号：US14075428

申请日：2013-11-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jihyung KIM ,  Jung Hyun KIM ,  Hyun-jae KIM ,  Kwang Jae LIM

IPC: H04W72/08

CPC classification number: H04L27/2657 ,  H04L25/03821 ,  H04L27/2691

Abstract: In order to reduce interference that may be generated when a plurality of signals having different subcarrier intervals are received, a method of controlling a signal having a larger subcarrier interval to be suitable for a signal having a smaller subcarrier interval and a method of removing CFO interference are provided. Subcarrier intervals of a plurality of signals to be transmitted by wireless terminals are compared with each other, and signals are designed so that a signal having the largest subcarrier interval may be repeatedly transmitted. Therefore, interference that may be generated among different kinds of signals when the base station simultaneously receives the different kinds of signals to perform Fourier transform may be mitigated. In addition, interference caused by a CFO may be removed by previously compensating the CFO estimated in a time domain to perform Fourier transform.

Abstract translation: 为了减少在接收到具有不同子载波间隔的多个信号时可能产生的干扰，一种控制具有较大子载波间隔的信号适合于具有较小子载波间隔的信号的方法和一种消除CFO干扰的方法 被提供。 将要由无线终端发送的多个信号的子载波间隔彼此进行比较，并且设计信号，使得可以重复发送具有最大子载波间隔的信号。 因此，可以减轻当基站同时接收不同种类的信号进行傅立叶变换时在不同种类的信号之间产生的干扰。 另外，由CFO导致的干扰可以通过预先补偿在时域中估计的CFO来执行傅立叶变换来消除。

公开(公告)号：US20130265898A1

公开(公告)日：2013-10-10

申请号：US13851570

申请日：2013-03-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Wooram SHIN ,  Hyun-jae KIM ,  Jihyung KIM ,  Anseok LEE ,  Kwang Jae LIM ,  DongSeung KWON

IPC: H04W72/08

CPC classification number: H04W72/082 ,  H04W72/12

Abstract: In a wireless communication system, a transmitting node selects a simultaneously transmit-unavailable node of a 1-hop node of the transmitting node, and allocates a transmitting resource in transmissible resources, except for a transmission scheduled resource of a simultaneously transmit-unavailable node. Further, a receiving node selects a simultaneously receive-unavailable node of a 1-hop node, which is a transmission target of the receiving node selects a simultaneously transmit-unavailable node of a 1-hop node of the receiving node, and allocates a receiving resource in receivable resources, except for a transmission scheduled resource to a simultaneously transmit-unavailable node of a simultaneously receive-unavailable node of the 1-hop node, which is a transmission target of the receiving node.

Abstract translation: 在无线通信系统中，发送节点选择发送节点的1跳节点的同时发送不可用节点，并且在可发送资源中分配发送资源，除了同时发送不可用节点的发送调度资源。 此外，接收节点选择作为接收节点的发送对象的1跳节点的同时接收不可用节点选择接收节点的1跳节点的同时发送不可用节点，并且分配接收 除了作为接收节点的传输对象的1跳节点的同时接收不可用节点的同时发送不可用节点的传输调度资源之外的可接收资源的资源。