公开(公告)号：US10673576B2

公开(公告)日：2020-06-02

申请号：US15576739

申请日：2016-08-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jung Sun Um ,  Sung Jin Yoo ,  Hoi Yoon Jung ,  Seung Keun Park

IPC: H04L1/18 ,  H04W24/10 ,  H04W72/14 ,  H04W16/14 ,  H04L1/02 ,  H04W74/08

Abstract: An operating method of a communication node in a network supporting licensed and unlicensed bands is disclosed. An operation method of a base station comprises the steps of: transmitting a PDSCH to a UE in an unlicensed band; receiving an HARQ response to the PDSCH from the UE; and determining a size of a CW on the basis of a proportion of NACKs in HARQ responses. Therefore, a performance of a communication network can be improved.

公开(公告)号：US10595335B2

公开(公告)日：2020-03-17

申请号：US15573753

申请日：2016-10-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon Jung ,  Jung Sun Um ,  Sung Jin Yoo ,  Seung Keun Park

IPC: H04W72/12 ,  H04L5/00 ,  H04L5/14 ,  H04W16/14 ,  H04W88/10

Abstract: A scheduling method for a communication network supporting an unlicensed band is disclosed. An operation method of UE comprises the steps of: receiving, from a base station, an unlicensed band burst including a plurality of subframes in an unlicensed band; acquiring control information from the unlicensed band burst; and acquiring data from the unlicensed band burst on the basis of the control information. Therefore, the performance of the communication network can be improved.

公开(公告)号：US10135594B2

公开(公告)日：2018-11-20

申请号：US15234278

申请日：2016-08-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hoi Yoon Jung ,  Sung Jin Yoo ,  Jung Sun Um ,  Seung Keun Park

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/00 ,  H04W72/04

Abstract: Disclosed is a scheduling method for a communication network supporting an unlicensed band. An operation method of a user equipment (UE) may comprise obtaining a control channel from a partial subframe having a length of less than 1 millisecond in an unlicensed band; obtaining scheduling information from the control channel; and obtaining a data channel indicated by the scheduling information from the partial subframe. Therefore, performance of the communication network can be enhanced.

公开(公告)号：US09814093B2

公开(公告)日：2017-11-07

申请号：US14597482

申请日：2015-01-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Sun Um ,  Hoi Yoon Jung ,  Byung Jang Jeong ,  Sung Jin Yoo ,  Jae Ick Choi

IPC: H04L5/14 ,  H04W84/12 ,  H04B7/26 ,  H04W16/14 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W84/12 ,  H04B7/2656 ,  H04L5/0048 ,  H04L5/14 ,  H04W16/14 ,  H04W56/001

Abstract: Provided are a data frame structure of a wireless communication system, which follows a sharing protocol which may be operated to coexist with a system that operates in an unlicensed spectrum, such as a WiFi system, and the like in the wireless communication system using a licensed spectrum such as an LTE system and an operation method of the system, and a terminal and a device of a base station for the operation.

公开(公告)号：US09553710B2

公开(公告)日：2017-01-24

申请号：US14524448

申请日：2014-10-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Hyun Hwang ,  Sung Jin Yoo ,  Jung Sun Um ,  Byung Jang Jeong ,  Jae Ick Choi

IPC: H04W72/08 ,  H04L5/00

CPC classification number: H04L5/0062 ,  H04L5/001

Abstract: Provided herein is a method and apparatus for heterogeneous carrier aggregation, the method including calculating interferences regarding a plurality of interference paths between an adjacent cell and serving cell; determining weighted values for the plurality of interference paths in the serving cell; calculating an accumulated value (accumulated margin or accumulated interference) regarding the plurality of interference paths based on the weighted values in the serving cell; determining a component carrier to be used in the carrier aggregation based on the accumulated value calculated in the serving cell; and performing the carrier aggregation based on the component carrier determined.

Abstract translation: 本文提供了一种用于异构载波聚合的方法和装置，所述方法包括：计算关于相邻小区和服务小区之间的多个干扰路径的干扰; 确定所述服务小区中的所述多个干扰路径的加权值; 基于所述服务小区中的加权值来计算关于所述多个干扰路径的累积值（累积容限或累积干扰）; 基于在所述服务小区中计算出的累计值，确定要在所述载波聚合中使用的分量载波; 以及基于所确定的分量载波来执行载波聚合。

公开(公告)号：US09532381B2

公开(公告)日：2016-12-27

申请号：US14461124

申请日：2014-08-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Jin Yoo ,  Jin Suk Pak ,  Byung Jang Jeong ,  Sung Hyun Hwang

IPC: H04W4/00 ,  H04W74/08

CPC classification number: H04W74/0816

Abstract: Provided is a hidden node detection method and apparatus in a wireless communication system, the apparatus including a sensing unit to sense a first communication device transmitting a data signal from among a plurality of communication devices sharing a wireless channel, a transmitter to generate a reception notification signal in response to the sensing, and transmit the reception notification signal to the a plurality of communication devices through a band identical to a transmission band of the data signal, and a controller to prevent a collision with the data signal transmitted from the first communication device through the wireless channel by delaying processing of a data transmission request when the data transmission request is input from a second communication device among the plurality of communication devices while maintaining the transmitting of the reception notification signal.

Abstract translation: 提供了一种无线通信系统中的隐藏节点检测方法和装置，该装置包括：感测单元，用于感测从共享无线信道的多个通信设备中发送数据信号的第一通信设备;发送器，用于生成接收通知 信号，并且通过与数据信号的传输频带相同的频带向多个通信设备发送接收通知信号;以及控制器，用于防止与从第一通信设备发送的数据信号的冲突 在保持发送接收通知信号的同时，在多个通信装置中从第二通信装置输入数据发送请求时，通过延迟数据发送请求的处理，通过无线信道。