公开(公告)号：US20230189013A1

公开(公告)日：2023-06-15

申请号：US17961767

申请日：2022-10-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soon Gi PARK ,  Young-Jo KO ,  Il Gyu KIM ,  Jun Sik KIM ,  Sung Cheol CHANG ,  Sun Mi JUN ,  Yong Seouk CHOI

IPC: H04W16/24 ,  H04W24/10

CPC classification number: H04W16/24 ,  H04W24/10

Abstract: An operation method of a first cell in a communication system may include: receiving, from a first communication node that is an upper node of the first cell, a first signal including second cell configuration information of a second cell connected with the first communication node and a second communication node that is a lower node of the first cell; identifying, based on the first signal, that the first cell and the second cell are jointly operated by the first communication node as coordinative PCells; transmitting, to the second communication node, a second signal including information on joint operations of the coordinative PCells by the first communication node; and performing communication with the first communication node and the second communication node based on the joint operations of the coordinative PCells.

公开(公告)号：US20220264280A1

公开(公告)日：2022-08-18

申请号：US17671810

申请日：2022-02-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Cheol CHANG ,  Jae Heung KIM

IPC: H04W8/00 ,  H04W68/00 ,  H04W74/08

Abstract: An operation method of a relay terminal for relaying radio communication between a base station and a remote terminal may comprise: recognizing a relay request of the remote terminal for system information provided by the base station; acquiring the system information from the base station; and transmitting the system information to the remote terminal.

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：US20170245171A1

公开(公告)日：2017-08-24

申请号：US15439362

申请日：2017-02-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soojung JUNG ,  Sung Cheol CHANG ,  Won-Ik KIM ,  Seungkwon CHO

IPC: H04W28/02 ,  H04W72/04 ,  H04L12/26

CPC classification number: H04W28/0278 ,  H04L43/0852 ,  H04L47/24 ,  H04L47/32 ,  H04W28/0268 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1236 ,  H04W72/1284 ,  H04W76/10

Abstract: Disclosed herein are a method and an apparatus for a buffer status report in a mobile communication system. The method for a buffer status report includes setting a new QoS class identifier (QCI) value for supporting a radio bearer (RB) added for a low latency service; and allocating a logical channel of a RB for an existing service and a logical channel of a RB for the low latency service to logical channel groups (LCGs) in consideration of the newly set QCI value. Further the buffer status report for each logical channel performed in an LCG unit is received.

公开(公告)号：US20170142704A1

公开(公告)日：2017-05-18

申请号：US15349599

申请日：2016-11-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Soojung JUNG ,  Won-Ik KIM ,  Sung Cheol CHANG ,  Seungkwon CHO

IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00

CPC classification number: H04L5/001 ,  H04L5/0044 ,  H04L5/0053 ,  H04W72/0446

Abstract: A terminal transmits and receives data by using legacy transport channels and legacy physical channels, which operate based on a first TTI, configures, when a service requiring an operation of a new second TTI is generated, new transport channels and new physical channels which operate based on the second TTI while configuring a new radio bearer, and thereafter, transmits and receives data of the service by using the new transport channels and the new physical channels.

公开(公告)号：US20170048727A1

公开(公告)日：2017-02-16

申请号：US15235956

申请日：2016-08-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seungkwon CHO ,  Soojung JUNG ,  Taegyun NOH ,  Anseok LEE ,  Sung Cheol CHANG

IPC: H04W24/02 ,  H04W74/08 ,  H04W28/02 ,  H04W72/04 ,  H04L1/00

Abstract: A terminal of a communication system transmits a first signal through a physical uplink channel that is allocated within a first radio resource based on a first Transmission Time Interval (TTI) having a first time length at a first step for uplink access, performs the remaining steps for the uplink access using a second radio resource based on the second TTI from a base station, when the terminal may operate based on a second TTI having a second time length smaller than the first time length, and transmits uplink data.

Abstract translation: 通信系统的终端基于在第一步骤的第一时间长度的第一传输时间间隔（TTI）在第一无线电资源内分配的物理上行链路信道发送第一信号，用于上行链路接入，执行剩余步骤 用于基于来自基站的基于第二TTI的第二无线电资源的上行链路接入，当终端可以基于具有小于第一时间长度的第二时间长度的第二TTI进行操作时，发送上行链路数据。

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：US20150009858A1

公开(公告)日：2015-01-08

申请号：US14271872

申请日：2014-05-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soojung JUNG ,  Seungkwon CHO ,  Hyung Jin KIM ,  Seokki KIM ,  Hyun LEE ,  Sung Cheol CHANG

IPC: H04W48/14

CPC classification number: H04W48/12 ,  H04L41/0806 ,  H04L45/02 ,  H04W48/16 ,  H04W84/18

Abstract: A discovery method is provided by a device in a D2D direction communication. The device selects a discovery resource unit from among discovery resource units which are not being used after listening during one or more discovery resource periods. The device transmits a first discovery signal through the selected discovery resource unit in a broadcasting manner at a first discovery resource period, and transmits a second discovery signal through the selected discovery resource unit in a query-based manner at a second discovery resource period.

Abstract translation: 发现方法由D2D方向通信中的设备提供。 设备从在一个或多个发现资源周期内的监听之后未被使用的发现资源单元中选择发现资源单元。 设备在第一发现资源周期以广播方式通过所选择的发现资源单元发送第一发现信号，并且在第二发现资源周期以基于查询的方式通过所选择的发现资源单元发送第二发现信号。

公开(公告)号：US20140376463A1

公开(公告)日：2014-12-25

申请号：US14309354

申请日：2014-06-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Jin KIM ,  Seungkwon CHO ,  Soojung JUNG ,  Seokki KIM ,  Hyun LEE ,  Sung Cheol CHANG

IPC: H04W76/02 ,  H04W74/08

CPC classification number: H04W76/023 ,  H04W8/00 ,  H04W8/005 ,  H04W52/02 ,  H04W56/002 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

Abstract: A D2D direct communication method is provided. The device sets at least one frame among a plurality of frames included in a superframe to a frame type 0 which is sectionized into a synchronization region for performing a synchronization procedure, a discovery region for discovering devices, a peering region for a connection, and a data region for scheduling of resources and data transmission. The device sets remaining frames among the plurality of frames to a frame type 1 which is sectionized into the synchronization region and the data region.

Abstract translation: 提供D2D直接通信方式。 设备将包括在超帧中的多个帧中的至少一个帧设置为帧类型0，帧类型0被划分为用于执行同步过程的同步区域，用于发现设备的发现区域，用于连接的对等区域，以及 数据区用于资源调度和数据传输。 该设备将多个帧中的剩余帧设置为被分成同步区域和数据区域的帧类型1。

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。