公开(公告)号：US09294135B2

公开(公告)日：2016-03-22

申请号：US13609638

申请日：2012-09-11

申请人： Ik Soo Eo ,  Sang-Kyun Kim ,  Mun Yang Park ,  Seon-Ho Han ,  Hyun Kyu Yu

发明人： Ik Soo Eo ,  Sang-Kyun Kim ,  Mun Yang Park ,  Seon-Ho Han ,  Hyun Kyu Yu

IPC分类号： H04B1/00

CPC分类号： H04B1/0021

摘要： A digital RF receiver does not use a separate receiver according to a mode and a band for multi-mode reception, MIMO reception, and bandwidth extension reception, and changes only setting variables in a single receiver structure so as to implement multi-mode reception, MIMO reception, bandwidth extension reception, and/or simultaneous multi-mode operation, such that complexity of the receiver, development cost, and power consumption can be reduced.

摘要翻译： 数字RF接收机根据用于多模式接收，MIMO接收和带宽扩展接收的模式和频带不使用单独的接收机，并且仅改变单个接收机结构中的设置变量以便实现多模式接收， MIMO接收，带宽扩展接收和/或同时多模式操作，从而可以减少接收机的复杂性，开发成本和功耗。

公开(公告)号：US09276800B2

公开(公告)日：2016-03-01

申请号：US13608677

申请日：2012-09-10

申请人： Hyun Ho Boo ,  Seon-Ho Han ,  Jang Hong Choi ,  Ik Soo Eo ,  Hyun Kyu Yu

发明人： Hyun Ho Boo ,  Seon-Ho Han ,  Jang Hong Choi ,  Ik Soo Eo ,  Hyun Kyu Yu

IPC分类号： H04J1/02 ,  H04L27/38 ,  H04L27/20 ,  H04L27/233 ,  H04L27/36 ,  H04B1/00

CPC分类号： H04L27/3836 ,  H04B1/0007 ,  H04L27/206 ,  H04L27/2092 ,  H04L27/2332 ,  H04L27/362 ,  H04L27/3854

摘要： The present invention relates to a single frequency synthesizer based FDD transceiver. A single frequency synthesizer generates and provides a carrier frequency so that frequency up-conversion and frequency down-conversion can be performed at the time of transmission and reception. Accordingly, the area, power consumption, and design complexity of the entire system can be reduced, and the performance of the system can be improved.

摘要翻译： 本发明涉及一种基于单频合成器的FDD收发器。 单个频率合成器产生并提供载波频率，使得可以在发送和接收时执行上变频和下变频。 因此，可以降低整个系统的面积，功耗和设计复杂性，并且可以提高系统的性能。

公开(公告)号：US08909276B2

公开(公告)日：2014-12-09

申请号：US13527001

申请日：2012-06-19

申请人： Chi-Woo Lim ,  Hyun-Kyu Yu ,  Kyung-Kyu Kim ,  Su-Ryong Jeong

发明人： Chi-Woo Lim ,  Hyun-Kyu Yu ,  Kyung-Kyu Kim ,  Su-Ryong Jeong

IPC分类号： H04B7/00 ,  H04W56/00

CPC分类号： H04W56/002 ,  H04W76/14

摘要： A method and an apparatus for obtaining synchronization of a terminal for communication between devices when a base station collapses are provided. The method includes, when a preamble signal is not received from the base station, maintaining a first synchronization for a predetermined time using a timer, transmitting a first preamble signal at a first synchronization point, performing a synchronization procedure with at least one neighbor terminal based on the first preamble signal, and, after the synchronization procedure, performing communication with the at least one neighbor terminal. In addition, when a preamble signal is not received from a base station, a first preamble signal from a relevant neighbor terminal is monitored for a predetermined time. When the first preamble signal is not received from the relevant neighbor terminal for the predetermined time, a second preamble signal is transmitted at an arbitrary point.

摘要翻译： 提供了一种用于当基站崩溃时获得终端用于通信的终端的同步的方法和装置。 该方法包括：当没有从基站接收到前同步信号时，使用定时器保持预定时间的第一同步，在第一同步点发送第一前导信号，与至少一个相邻终端进行同步过程 在第一前导信号上，并且在同步过程之后，执行与至少一个相邻终端的通信。 此外，当没有从基站接收到前导信号时，来自相关邻居终端的第一前导信号被监视预定时间。 当在预定时间内没有从相关邻居终端接收到第一前导信号时，在任意点发送第二前同步码信号。

公开(公告)号：US08582594B2

公开(公告)日：2013-11-12

申请号：US13304467

申请日：2011-11-25

申请人： Chi-Woo Lim ,  Hyun-Kyu Yu ,  Hyun-Jeong Kang

发明人： Chi-Woo Lim ,  Hyun-Kyu Yu ,  Hyun-Jeong Kang

IPC分类号： H04J3/26

CPC分类号： H04L1/1854 ,  H04L2001/0093 ,  H04W8/26 ,  H04W72/0406 ,  H04W72/121

摘要： An apparatus and a method for supporting periodic multicast transmission in a machine type communication system are provided. A method for operating a Base Station (BS) in a communication system includes allocating persistent resources for data transmission of a service group, selecting at least one MS to feed back a success/failure in receiving a map including the persistent resource allocation information, among Mobile Stations (MSs) to receive the persistent resource allocation information, and transmitting the map including the persistent resource allocation information and information indicating the selected MS.

摘要翻译： 提供一种用于在机器型通信系统中支持周期性多播传输的装置和方法。 一种用于在通信系统中操作基站（BS）的方法包括为服务组的数据传输分配持久资源，在接收包括持续资源分配信息的映射之间选择至少一个MS以反馈成功/失败，其中 移动站（MS），用于接收持续资源分配信息，并发送包括持久资源分配信息和指示所选MS的信息的映射。

公开(公告)号：US08471739B2

公开(公告)日：2013-06-25

申请号：US13312449

申请日：2011-12-06

申请人： Jang Hong Choi ,  Hyun Kyu Yu

发明人： Jang Hong Choi ,  Hyun Kyu Yu

IPC分类号： H03M1/10

CPC分类号： H03M1/0653 ,  H03M1/685 ,  H03M1/747

摘要： Provided is a digital analog converter that output currents having different magnitudes for a digital input value according to a mapping table. The digital analog converter includes: a plurality of current sources; and a calibration unit configured to sort index values for identifying the plurality of current sources according to current magnitudes of the current sources, couple each two current sources which are symmetrical left and right about the center of the sorted index values, and map the current source pairs into a mapping table.

摘要翻译： 提供了一种数字模拟转换器，其根据映射表输出对数字输入值具有不同幅度的电流。 数字模拟转换器包括：多个电流源; 以及校准单元，被配置为根据当前源的当前幅度对用于识别多个电流源的索引值进行排序，将关于分选的索引值的中心的左右对称的两个电流源耦合，并且将当前源 成对映射表。

公开(公告)号：US20130064239A1

公开(公告)日：2013-03-14

申请号：US13606773

申请日：2012-09-07

申请人： Hyun-Kyu Yu ,  Tae-Young Kim ,  Jae-Weon Cho

发明人： Hyun-Kyu Yu ,  Tae-Young Kim ,  Jae-Weon Cho

IPC分类号： H04J3/06

CPC分类号： H04W56/001 ,  H04W16/28 ,  H04W48/12 ,  H04W72/046

摘要： A base station and terminal use methods of obtaining synchronization and system information in a wireless communication system. An operation of a base station includes generating a synchronization signal to be transmitted through a Synchronization Channel (SCH), generating a broadcast signal to be transmitted through a Broadcast Channel (BCH), and transmitting repetitively the SCH and the BCH by performing beamforming on the channels with different transmission beams.

摘要翻译： 基站和终端使用在无线通信系统中获得同步和系统信息的方法。 基站的动作包括生成通过同步信道（SCH）发送的同步信号，生成要通过广播信道（BCH）发送的广播信号，并且通过在该信道上进行波束成形来重复发送SCH和BCH 具有不同透射光束的通道。

公开(公告)号：US20130040684A1

公开(公告)日：2013-02-14

申请号：US13569550

申请日：2012-08-08

申请人： Hyun-Kyu YU ,  Tae-Young KIM ,  Jeong-Ho PARK

发明人： Hyun-Kyu YU ,  Tae-Young KIM ,  Jeong-Ho PARK

IPC分类号： H04W24/00

CPC分类号： H04B7/0617 ,  H04B7/0623 ,  H04B7/0684 ,  H04L1/189 ,  H04L5/0048 ,  H04W72/042 ,  H04W88/02

摘要： A method and an apparatus for tracking a beam in a wireless communication system are provided. In the method, a plurality of downlink reference signals are received from a base station and at least one downlink transmission beam pattern is determined. A plurality of uplink reference signals are transmitted to the base station, each includes identifier information corresponding to the determined at least one downlink transmission beam pattern. ACKnowledgement (ACK) information indicating that the base station has successfully received an identifier included in the identifier information corresponding to the determined at least one downlink transmission beam pattern from identifier information corresponding to an uplink transmission beam pattern and that the plurality of uplink reference signals from the base station is received.

摘要翻译： 提供了一种在无线通信系统中跟踪光束的方法和装置。 在该方法中，从基站接收多个下行链路参考信号，并且确定至少一个下行链路传输波束图案。 将多个上行链路参考信号发送到基站，每个包括与所确定的至少一个下行链路传输波束模式对应的标识符信息。 确认（ACK）信息，其指示基站已经从对应于上行链路传输波束模式的标识符信息中成功接收到包含在与所确定的至少一个下行链路传输波束模式相对应的标识符信息中的标识符，并且所述多个上行链路参考信号来自 接收基站。

公开(公告)号：US20130021952A1

公开(公告)日：2013-01-24

申请号：US13554291

申请日：2012-07-20

申请人： Su-Ryong JEONG ,  Jeong-Ho PARK ,  Tae-Young KIM ,  Hyun-Kyu YU

发明人： Su-Ryong JEONG ,  Jeong-Ho PARK ,  Tae-Young KIM ,  Hyun-Kyu YU

IPC分类号： H04W72/04 ,  H04W88/00

CPC分类号： H04W74/006 ,  H04B7/0617 ,  H04B7/086 ,  H04W16/28 ,  H04W72/046

摘要： A method and a Base Station (BS) of transmitting information for Random Access (RA) by a base station in a wireless communication system are provided. The BS generates RA information for beam alignment between the base station and each of a plurality of mobile terminals based on a number of reception beam forming patterns of the base station used for each of one or more RA channels and broadcasts the RA information to the plurality of mobile terminals. The RA information comprises information related to the number of reception beam forming patterns of the base station used for each of the one or more RA channels.

摘要翻译： 提供了一种在无线通信系统中由基站发送用于随机接入（RA）的信息的方法和基站（BS）。 BS基于用于一个或多个RA信道中的每一个的基站的接收波束形成模式的数量，生成基站与多个移动终端中的每一个之间的波束对准的RA信息，并将RA信息广播到多个 的移动终端。 RA信息包括与用于一个或多个RA信道中的每一个的基站的接收波束形成模式的数量有关的信息。

公开(公告)号：US08295405B2

公开(公告)日：2012-10-23

申请号：US12629018

申请日：2009-12-01

申请人： Hyun Kyu Yu ,  Mun Yang Park ,  Jae Hoon Shim

发明人： Hyun Kyu Yu ,  Mun Yang Park ,  Jae Hoon Shim

IPC分类号： H04L27/22

CPC分类号： H04L27/3863

摘要： There is provided an apparatus and method for In-phase/Quadrature-phase (I/Q) mismatch calibration. The apparatus includes: a symmetrical point extracting part receiving continuous wave signals and extracting an I/Q channel average locus of the continuous wave signals; an error extracting part extracting a degree of distortion of the continuous wave signals from the extracted I/Q channel average locus; and a calibrating part calibrating a mismatch between I-channel signals and Q-channel signals of the continuous wave signals using the degree of distortion of the continuous wave signals.

摘要翻译： 提供了用于同相/正交相（I / Q）不匹配校准的装置和方法。 该装置包括：对称点提取部分，接收连续波信号并提取连续波信号的I / Q信道平均轨迹; 从所提取的I / Q通道平均轨迹提取连续波信号的失真程度的误差提取部分; 以及使用连续波信号的失真程度来校准连续波信号的I信道信号和Q信道信号之间的失配的校准部分。

公开(公告)号：US08274420B2

公开(公告)日：2012-09-25

申请号：US12970861

申请日：2010-12-16

申请人： Hyun Kyu Yu ,  Seon Ho Han ,  Young Hwa Kim ,  Seong Hwan Cho

发明人： Hyun Kyu Yu ,  Seon Ho Han ,  Young Hwa Kim ,  Seong Hwan Cho

IPC分类号： H03M1/38

CPC分类号： H03M1/46 ,  H03M1/827

摘要： There is provided a successive approximation analog-to-digital converter including only minimal capacitors to perform an analog-to-digital conversion operation, thereby making it possible to have very strong process change resistance characteristics while having reduced capacitance and circuit area. The successive approximation analog-to-digital converter may include a reference current supplying unit that supplies a reference current; a signal storage unit that stores a reference signal generated by charging the reference current and an input signal input from the outside; a comparing unit that compares the reference signal and the input signal; and a controller that controls the reference current supplying unit while generating the digital output signal based on the comparison result of the comparing unit to change the supply amount of the reference current supplied to the signal storage unit in proportion to the binary code.

摘要翻译： 提供了仅包括最小电容器以执行模数转换操作的逐次逼近模数转换器，从而使得可以具有非常强的工艺变化电阻特性，同时具有减小的电容和电路面积。 逐次逼近模数转换器可以包括提供参考电流的参考电流提供单元; 信号存储单元，存储通过对参考电流进行充电而产生的参考信号和从外部输入的输入信号; 比较单元，其比较所述参考信号和所述输入信号; 以及控制器，其基于所述比较单元的比较结果来控制所述参考电流供给单元，同时根据所述二进制码来改变提供给所述信号存储单元的参考电流的供给量。