公开(公告)号：US20160192236A1

公开(公告)日：2016-06-30

申请号：US14929630

申请日：2015-11-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyung Yeol SOHN ,  Seung Jae BAHNG ,  Hoon LEE

IPC: H04W28/06 ,  H04W74/08

CPC classification number: H04L27/00 ,  H04J13/0062 ,  H04L27/2613 ,  H04L27/2636 ,  H04L27/2692

Abstract: Disclosed are a method and an apparatus that efficiently generate a DFT-ed preamble sequence used in uplink PRACH transmission of a wireless communication system. The method for generating a DFT-ed preamble sequence in a wireless communication system includes: calculating a first index value corresponding to the length of a DFT-ed preamble sequence by using control information; extracting a value on a unit circle corresponding to the first index value or a value on the unit circle corresponding to a second index value acquired by transforming the first index value according to a preamble format; reflecting a sign on the unit circle including the corresponding index value to the extracted value on the unit circle; and multiplying a value to which the sign is reflected by an initial sequence value according to a root index.

Abstract translation: 公开了一种有效地生成在无线通信系统的上行链路PRACH传输中使用的DFT编辑的前同步码序列的方法和装置。 用于在无线通信系统中生成DFT编辑的前同步码序列的方法包括：通过使用控制信息来计算与DFT编辑的前导序列的长度对应的第一索引值; 提取与第一索引值相对应的单位圆上的值或通过根据前导码格式变换第一索引值而获得的与第二索引值对应的单位圆上的值; 将单位圆上的符号反映为单位圆上提取的值的相应指标值; 并且根据根指数将符号反映的初始序列值乘以该值。

公开(公告)号：US20150229396A1

公开(公告)日：2015-08-13

申请号：US14615454

申请日：2015-02-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoon LEE ,  Hyeong Sook PARK ,  Kyung Yeol SOHN ,  Youn Ok PARK

IPC: H04B10/2575 ,  H04W72/04

CPC classification number: H04J14/0272 ,  H04B10/25753 ,  H04B2210/07

Abstract: The present invention relates to a signal processing apparatus and method of a basestation. The apparatus according to the present invention includes a plurality of first processing units which allocates transmission data to a predetermined frequency band and transmits a transmission signal in which control information is allocated to a guard band in the predetermined frequency band; a plurality of second processing units which extracts the control information from the guard band in the predetermined frequency band for a reception signal to perform a corresponding operation and extracts the transmission data from the predetermined frequency band to transmit the transmission data through the antenna; and an optical transmitting unit which combines a plurality of transmission signals received from the plurality of first processing units into one signal to transmit the signal to the plurality of second processing units through the optical cable.

Abstract translation: 本发明涉及基站的信号处理装置和方法。 根据本发明的装置包括：多个第一处理单元，其向预定频带分配传输数据，并将控制信息分配给预定频带中的保护频带的发送信号; 多个第二处理单元，从接收信号的规定频带的保护频带中提取控制信息，进行相应的动作，从规定的频带取出发送数据，通过天线发送发送数据; 以及光发送单元，其将从所述多个第一处理单元接收的多个发送信号组合成一个信号，以通过所述光缆将所述信号发送到所述多个第二处理单元。

公开(公告)号：US20230353222A1

公开(公告)日：2023-11-02

申请号：US18304920

申请日：2023-04-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyung Yeol SOHN

IPC: H04B7/06

CPC classification number: H04B7/06952 ,  H04W84/005

Abstract: A beam management method performed by a moving backhaul hub may comprise: calculating, based on location information at a first time, a first separation distance between the moving backhaul hub and a moving backhaul terminal, a first azimuth angle to which a beam of the moving backhaul hub is directed, and a first elevation angle in which the beam of the moving backhaul hub is directed; determining an operation mode of the moving backhaul terminal using the first separation distance, the first azimuth angle, and/or the first elevation angle; determining whether to transmit a beam search command message to the moving backhaul terminal based on the operation mode of the moving backhaul terminal; and transmitting signals to the moving backhaul terminal in consideration of the operation mode when the beam search command message is transmitted to the moving backhaul terminal.

公开(公告)号：US20160192400A1

公开(公告)日：2016-06-30

申请号：US14949168

申请日：2015-11-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyung Yeol SOHN ,  Youn Ok PARK

IPC: H04W74/08 ,  H04W24/08

CPC classification number: H04W74/0833 ,  H04B7/0695 ,  H04B7/088

Abstract: Provided is a method of transmitting and receiving a signal in a wireless communication. The method of transmitting and receiving a signal in a wireless communication includes: transmitting a transmission beam to a terminal in an area which exists within a preset cluster; receiving a random access channel signal including a random access code mapped to the cluster; and detecting the random access code by using the random access channel signal.

Abstract translation: 提供了一种在无线通信中发送和接收信号的方法。 在无线通信中发送和接收信号的方法包括：将传输波束发送到存在于预设簇内的区域中的终端; 接收包括映射到所述簇的随机接入码的随机接入信道信号; 以及通过使用随机接入信道信号来检测随机接入码。

公开(公告)号：US20160150541A1

公开(公告)日：2016-05-26

申请号：US14952412

申请日：2015-11-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jisoo PARK ,  Youn Ok PARK ,  Young Jo BANG ,  Kyung Yeol SOHN

IPC: H04W72/04 ,  H04W74/08

CPC classification number: H04W72/0453 ,  H04W74/0833

Abstract: A base station of a wireless communication system determines an index of radio resource blocks to which a plurality of random access channels are allocated, and allocates the plurality of random access channels to locations of the determined index of the radio resource blocks such that the radio resource blocks of the plurality of random access channels have a symmetrical structure in available uplink radio resource blocks.

Abstract translation: 无线通信系统的基站确定分配有多个随机接入信道的无线资源块的索引，并将多个随机接入信道分配给所确定的无线资源块的索引的位置，使得无线资源 多个随机接入信道的块在可用的上行链路无线资源块中具有对称的结构。

公开(公告)号：US20230080611A1

公开(公告)日：2023-03-16

申请号：US17942522

申请日：2022-09-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyung Yeol SOHN ,  Jung Sook BAE ,  Heesoo LEE

IPC: H04B7/06 ,  H04W24/10 ,  H04B17/318 ,  G01S19/51 ,  H04W16/28

Abstract: A method for setting up a mobile backhaul link, performed by a hub in a mobile backhaul system, may comprise: calculating a separation distance between the hub and a mobile backhaul terminal using GPS position information; selecting a beam width and a beam search scheme of at least one beam to be used for setting up the mobile backhaul link according to the separation distance; transmitting ID(s) of the at least one beam to the mobile backhaul terminal through the at least one beam having the beam width according to the beam search scheme; receiving the ID(s) of the at least one beam and a measurement result of the at least one beam from the mobile backhaul terminal; and selecting a first beam having a largest signal strength according to the measurement result, wherein the first beam is used for setting up the mobile backhaul link.

公开(公告)号：US20210075493A1

公开(公告)日：2021-03-11

申请号：US17009254

申请日：2020-09-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyung Yeol SOHN

IPC: H04B7/10 ,  H04W88/14 ,  H04W24/10 ,  H04W72/04

Abstract: An operation method of a first node belonging to an Xhaul network in a wireless backhaul system including the Xhaul network may comprise transmitting first resource allocation information to a second node and third nodes; receiving, from the second node, information of cross polarization interferences (XPIs) measured for wireless signals through wireless links generated based on the first resource allocation information; generating second resource allocation information indicating resources allocated to each of the second node and the third nodes based on the information of the XPIs; and transmitting the second resource allocation information to the second node and the third nodes, wherein the XPIs for the wireless signals are measured by the third nodes.

公开(公告)号：US20170201974A1

公开(公告)日：2017-07-13

申请号：US15223369

申请日：2016-07-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyung Yeol SOHN ,  Jisoo PARK ,  Hoon LEE

IPC: H04W72/04 ,  H04W74/00

CPC classification number: H04W72/046 ,  H04L5/0023 ,  H04W72/0413 ,  H04W72/048 ,  H04W74/004 ,  H04W74/008

Abstract: A base station uses a plurality of transmitting/receiving beams to divide a service region into a plurality of sub-regions, transmits a sub-region reference signal for identifying sub-regions and a beam-identifying reference signal for identifying transmitting/receiving beams in sub-regions, uses transmitting beams belonging to sub-regions to transmit a system information block including random access information of sub-regions, uses random access information of the sub-region to which the terminal belongs to receive a random access preamble transmitted by the terminal and determine the transmitting/receiving beam to which the terminal belongs, and transmits a random access response message including resource allocation information of the transmitting/receiving beam to which the terminal belongs to the terminal.

公开(公告)号：US20160219559A1

公开(公告)日：2016-07-28

申请号：US15005138

申请日：2016-01-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kyung Yeol SOHN ,  Youn Ok PARK

IPC: H04W72/04

CPC classification number: H04L27/2628 ,  H04B10/25753 ,  H04L5/0053 ,  H04L27/2602 ,  H04W88/085

Abstract: Disclosed are a method and an apparatus for transmitting control information and status information. In a distributed base station where a digital unit and a radio unit transmit/receive a signal through an optical transceiver, the digital unit inserts control information for controlling the radio unit into a guard band of a downlink transmission signal to be transmitted through an antenna. The radio unit inserts status information into a guard band of an uplink reception signal received through the antenna and to transmit an uplink reception signal including the status information to the digital unit.

Abstract translation: 公开了一种用于发送控制信息和状态信息的方法和装置。 在数字单元和无线单元通过光收发器发送/接收信号的分布式基站中，数字单元将用于控制无线单元的控制信息插入将通过天线发送的下行链路传输信号的保护带。 无线单元将状态信息插入通过天线接收的上行接收信号的保护频带，并将包含状态信息的上行接收信号发送到数字单元。

公开(公告)号：US20170367097A1

公开(公告)日：2017-12-21

申请号：US15625071

申请日：2017-06-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyung Yeol SOHN ,  Jisoo PARK ,  Hoon LEE

IPC: H04W72/04 ,  H04W76/02 ,  H04W56/00 ,  H04W72/08 ,  H04W74/00 ,  H04W74/08 ,  H04W88/10

CPC classification number: H04W72/0466 ,  H04W56/001 ,  H04W72/042 ,  H04W72/085 ,  H04W74/006 ,  H04W74/0833 ,  H04W76/18 ,  H04W88/10

Abstract: A base station (BS) of a mobile communication system receives a candidate list including a candidate remote radio head (RRH) adjacent to the UE, excluding at least one serving RRH connected to the UE, among a plurality of RRHs, from the UE, allocates a random access code index to at least one candidate RRH included in the candidate list, and subsequently transmits the random access code index allocated to the at least one candidate RRH to the UE.