公开(公告)号：US20170118766A1

公开(公告)日：2017-04-27

申请号：US15331371

申请日：2016-10-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung-Kwon BAEK ,  Young Jo KO ,  Eunkyung KIM ,  Chanho YOON

IPC: H04W72/12 ,  H04W28/02 ,  H04L1/18 ,  H04W72/04

CPC classification number: H04W72/1268 ,  H04L1/1816 ,  H04L1/1877 ,  H04L1/1887 ,  H04W72/1252

Abstract: Disclosed herein is a method for transmitting, by a terminal, an uplink signal using a first cell type representing a cell using a licensed band frequency and a second cell type representing a cell using an unlicensed band frequency. The terminal configures at least one first radio bearer (RB) being able to use a radio resource for the first cell type and a radio resource for the second cell type for an uplink transmission. The terminal configures at least one second RB being able to use a radio resource for the first cell type for an uplink transmission. The terminal includes at least one first logical channel corresponding to the at least one first RB in a first logical channel group, and the terminal includes at least one second logical channel corresponding to the at least one second RB in a second logical channel group.

公开(公告)号：US20160227425A1

公开(公告)日：2016-08-04

申请号：US15010855

申请日：2016-01-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung KIM ,  Seung-Kwon BAEK ,  Chanho YOON ,  Jae Sun CHA ,  Sung Cheol CHANG ,  Young Jo KO

IPC: H04W24/08 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04L1/1812 ,  H04L1/1819 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0073 ,  H04W74/0808

Abstract: A method and an apparatus for transmitting a resource, and a method for the HARQ retransmission using an unlicensed band include an operation of performing clear channel assessment (CCA) for the unlicensed band; and an operation of occupying a channel of the unlicensed band according to the CCA and determining whether or not the resource is transmitted based on a position of a transmission time interval (TTI) within a channel occupancy time (COT) for the channel.

Abstract translation: 一种用于发送资源的方法和装置，以及使用非许可频带进行HARQ重传的方法，包括为非许可频带执行清除信道评估（CCA）的操作; 以及根据CCA占用非许可频带的信道的操作，并且基于在该信道的信道占用时间（COT）内的传输时间间隔（TTI）的位置来确定是否发送资源。

公开(公告)号：US20170202018A1

公开(公告)日：2017-07-13

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

CPC classification number: H04W74/08 ,  H04W16/14 ,  H04W74/0816 ,  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：US20160330678A1

公开(公告)日：2016-11-10

申请号：US15148108

申请日：2016-05-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Chanho YOON ,  Young Jo KO ,  Eunkyung KIM ,  Seung-Kwon BAEK

IPC: H04W48/16 ,  H04W74/00 ,  H04W72/04 ,  H04W8/00 ,  H04W16/14

CPC classification number: H04W74/006 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0051 ,  H04W16/14 ,  H04W48/12 ,  H04W84/045

Abstract: Disclosed is a method for a base station to transmit a discovery reference signal (DRS) through a channel of an unlicensed band. The base station attempts a first access to the channel of the unlicensed band so as to transmit a first DRS in a first DRS measurement timing configuration (DMTC) period. When the first access fails, the base station attempts a second access to the channel of the unlicensed band with a shorter predetermined period than the first DMTC period so as to transmit a second DRS in the first DMTC period.

Abstract translation: 公开了一种用于基站通过未许可频带的信道发送发现参考信号（DRS）的方法。 基站尝试对未许可频带的信道的第一次接入，以便在第一DRS测量定时配置（DMTC）周期中发送第一DRS。 当第一接入失败时，基站以比第一DMTC周期更短的预定周期尝试第二次接入非许可频带的信道，以便在第一DMTC周期中发送第二DRS。

公开(公告)号：US20140112235A1

公开(公告)日：2014-04-24

申请号：US14058894

申请日：2013-10-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soojung JUNG ,  Sung Kyung KIM ,  Seungkwon CHO ,  Chanho YOON ,  Hyung Jin KIM ,  Sung Cheol CHANG ,  DongSeung KWON

IPC: H04W48/16 ,  H04W4/06

CPC classification number: H04W48/16 ,  H04W4/06 ,  H04W76/14

Abstract: A discovery signal that a first device joining in direct communication broadcasts through a radio channel is provided. The discovery signal includes a first field representing whether the discovery signal is a signal for discovering a device or a signal for discovering a service, and a second field including one of device identifier information of the first device and service information of a service that the first device provides according to a value of the first field.

Abstract translation: 提供了通过无线电信道广播直接通信的第一设备的发现信号。 发现信号包括表示发现信号是用于发现设备的信号还是用于发现服务的信号的第一字段，以及包括第一设备的设备标识符信息和第一设备的服务信息之一的第二字段 设备根据第一个字段的值提供。

公开(公告)号：US20190394804A1

公开(公告)日：2019-12-26

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: 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：US20190261388A1

公开(公告)日：2019-08-22

申请号：US16401491

申请日：2019-05-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chanho YOON ,  Young Jo KO ,  Seung-Kwon BAEK ,  Eunkyung KIM

IPC: H04W72/12 ,  H04W84/04 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04W56/00 ,  H04W28/26

Abstract: There is provided a method for transmitting, by a transmitter, a signal through an unlicensed band channel. The transmitter transmits an initial signal through the unlicensed band channel to preoccupy the unlicensed band channel when the unlicensed band channel is in an idle status. The transmitter includes a first partial subframe transmitted after the initial signal in a frame burst depending to transmission timing of the initial signal. Further, the transmitter transmits the frame burst through the unlicensed band channel.

公开(公告)号：US20160302226A1

公开(公告)日：2016-10-13

申请号：US15094864

申请日：2016-04-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung KIM ,  Chanho YOON ,  Seung-Kwon BAEK ,  Wooram SHIN ,  Kwang Jae LIM ,  Young Jo KO

IPC: H04W72/14 ,  H04W72/12 ,  H04W72/04

Abstract: A method and an apparatus for allocating uplink resources includes transmitting an uplink grant (UL Grant) for an unlicensed component carrier (UCC) to a plurality of terminals, wherein the UL Grant for a first terminal among the plurality of terminals includes a resource allocation information in which a transmission timing of the uplink data of a second terminal among the plurality of terminals is considered.

Abstract translation: 一种用于分配上行链路资源的方法和装置包括向多个终端发送用于非许可分量载波（UCC）的上行链路许可（UL Grant），其中，所述多个终端中的第一终端的UL授权包括资源分配信息 考虑多个终端中的第二终端的上行链路数据的发送定时。

公开(公告)号：US20160227571A1

公开(公告)日：2016-08-04

申请号：US15012190

申请日：2016-02-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Kwon BAEK ,  Chanho YOON ,  Eunkyung KIM ,  Jae Sun CHA ,  Sung Cheol CHANG ,  Young Jo KO

IPC: H04W72/12 ,  H04W16/14

CPC classification number: H04W16/14 ,  H04L5/0053 ,  H04W24/02 ,  H04W36/0069 ,  H04W48/12 ,  H04W48/20 ,  H04W52/0206 ,  H04W74/0808 ,  H04W88/06

Abstract: There are provided a method and apparatus for transmitting a discovery reference signal (DRS) through transmitting the DRS to a user equipment through a channel of an unlicensed band, receiving measurement report for measurement performed based on the DRS from the user equipment, and scheduling the cell of the unlicensed band based on the measurement report and providing a service to the user equipment through the cell of the unlicensed band.

Abstract translation: 提供了一种用于通过通过非授权频带的信道将用户设备发送到用户设备来发送发现参考信号（DRS）的方法和装置，接收基于来自用户设备的DRS进行测量的测量报告，并且调度 基于测量报告的非许可频带的小区，并且通过非许可频带的小区向用户设备提供服务。

公开(公告)号：US20160095114A1

公开(公告)日：2016-03-31

申请号：US14865968

申请日：2015-09-25

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: H04W72/04

CPC classification number: H04W74/0816

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.

Abstract translation: 提供了一种用于通过发送器发送具有通过非许可频带的信道的周期性的第一数据的方法：发送机调整第一数据的发送定时和用于信道占用的清除信道评估（CCA）定时中的至少一个 这个频道。 发射机通过在CCA定时在信道上执行CCA来确定信道是否可能被占用。 当确定可以占用信道时，发射机以第一数据的发送定时通过信道发送第一数据。