公开(公告)号：WO2010002166A2

公开(公告)日：2010-01-07

申请号：PCT/KR2009/003529

申请日：2009-06-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  LIM, Jong Soo ,  KIM, Young Su ,  YANG, Kyu Tae ,  BAE, Jae Hwui ,  BAE, Byungjun ,  KIM, Kwang-Yong ,  YUN, Joungil ,  CHOI, Seomee ,  LEE, Ji Bong ,  LEE, Soo In ,  HWANG, Seungku ,  AHN, Chieteuk

Inventor： LIM, Jong Soo ,  KIM, Young Su ,  YANG, Kyu Tae ,  BAE, Jae Hwui ,  BAE, Byungjun ,  KIM, Kwang-Yong ,  YUN, Joungil ,  CHOI, Seomee ,  LEE, Ji Bong ,  LEE, Soo In ,  HWANG, Seungku ,  AHN, Chieteuk

IPC: H04B7/005

CPC classification number: H04L25/0228 ,  H04L1/0056 ,  H04L5/0044 ,  H04L5/0048 ,  H04L25/03292 ,  H04L27/2601 ,  H04L27/2613 ,  H04L2025/03414

Abstract: The present invention provides a digital multimedia broadcasting transmitting apparatus, including: a pilot signal generator that is used in estimating a transmission channel in a receiving apparatus and generates a pilot signal including at least one information a; a subcarrier mapping unit that maps the pilot signal to a subcarrier corresponding thereto; and a modulating unit that modulates an output of the subcarrier mapping unit, wherein the pilot signal has a value for specific information rather than a predetermined value in the receiving apparatus.

Abstract translation: 本发明提供一种数字多媒体广播发送装置，包括：导频信号发生器，用于估计接收装置中的传输信道，并产生包括至少一个信息a的导频信号; 子载波映射单元，其将导频信号映射到与其对应的子载波; 以及调制单元，其对所述子载波映射单元的输出进行调制，其中，所述导频信号在所述接收装置中具有特定信息的值而不是预定值。

公开(公告)号：WO2008066258A1

公开(公告)日：2008-06-05

申请号：PCT/KR2007/005473

申请日：2007-10-31

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  LIM, Hyoungsoo ,  PARK, So-Ra ,  KIM, Sung-Hoon ,  BAE, Jae-Hwui ,  LIM, Jong-Soo ,  LEE, Soo-In

Inventor： LIM, Hyoungsoo ,  PARK, So-Ra ,  KIM, Sung-Hoon ,  BAE, Jae-Hwui ,  LIM, Jong-Soo ,  LEE, Soo-In

IPC: H04L27/36

CPC classification number: H04L27/2604 ,  H04L25/022 ,  H04L25/0236

Abstract: Provided are hierarchical modulation apparatus and method using a pilot signal and an apparatus and method for receiving a hierarchically modulated signal. The hierarchical modulation apparatus comprises a first encoder encoding a first layer signal sequence, a second encoder encoding a second layer signal sequence, a pilot inserting unit inserting a pilot signal into the signal sequence encoded by the second encoder, and a hierarchical modulator modulating the signals output from the first encoder and the pilot inserting unit and combining the modulated signals.

Abstract translation: 提供了使用导频信号的分级调制装置和方法以及用于接收分级调制信号的装置和方法。 分级调制装置包括编码第一层信号序列的第一编码器，编码第二层信号序列的第二编码器，将导频信号插入到由第二编码器编码的信号序列中的导频插入单元，以及调制信号 从第一编码器和导频插入单元输出并组合调制信号。

公开(公告)号：WO2006115319A1

公开(公告)日：2006-11-02

申请号：PCT/KR2005/004532

申请日：2005-12-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KIM, Ju-yeun ,  KIM, Young-su ,  BAE, Jae-hwui ,  LEE, Hyun ,  LIM, Jong-soo ,  LEE, Soo-in

Inventor： KIM, Ju-yeun ,  KIM, Young-su ,  BAE, Jae-hwui ,  LEE, Hyun ,  LIM, Jong-soo ,  LEE, Soo-in

IPC: H04B7/02

CPC classification number: H04B7/0808 ,  H04B7/0811

Abstract: This research provides a diversity receiving apparatus and a method thereof. The apparatus includes a switching units for sequentially scanning a plurality of directional antennas based on a first control signal and selecting a directional antenna having an optimal channel impulse response based on a second control signal; a radio frequency (RF) front end units for converting an RF signal into a digital intermediate frequency (IF) signal; a demodulating units for demodulating the digital IF signal into a baseband signal; a diversity signal processing units for transmitting the first control signal to the switching units, selecting a beam output signal having the optimal channel impulse response and transmitting the second control signal to the switching unit to select the directional antenna corresponding to the beam output signal; and a channel equalizing unit for compensating for remaining channel distortion of the selected beam output.

Abstract translation: 该研究提供了一种分集接收装置及其方法。 该装置包括用于基于第一控制信号顺序扫描多个定向天线的切换单元，并且基于第二控制信号选择具有最佳信道脉冲响应的定向天线; 用于将RF信号转换为数字中频（IF）信号的射频（RF）前端单元; 解调单元，用于将数字IF信号解调为基带信号; 分集信号处理单元，用于将第一控制信号发送到切换单元，选择具有最佳信道脉冲响应的波束输出信号，并将第二控制信号发送到切换单元，以选择对应于波束输出信号的定向天线; 以及用于补偿所选择的光束输出的剩余信道失真的信道均衡单元。

公开(公告)号：WO2009142373A1

公开(公告)日：2009-11-26

申请号：PCT/KR2008/006972

申请日：2008-11-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  LIM, Jong Soo ,  KIM, Young Su ,  YANG, Kyu Tae ,  BAE, Jae Hwui ,  BAE, Byung Jun ,  KIM, Kwang-Yong ,  YUN, Joung Il ,  CHOI, Seomee ,  LEE, Gwang Soon ,  LEE, Ji Bong ,  LEE, Soo In ,  HWANG, Seung Ku ,  AHN, Chie Teuk

Inventor： LIM, Jong Soo ,  KIM, Young Su ,  YANG, Kyu Tae ,  BAE, Jae Hwui ,  BAE, Byung Jun ,  KIM, Kwang-Yong ,  YUN, Joung Il ,  CHOI, Seomee ,  LEE, Gwang Soon ,  LEE, Ji Bong ,  LEE, Soo In ,  HWANG, Seung Ku ,  AHN, Chie Teuk

IPC: H04N7/015 ,  H04N7/12

CPC classification number: H04L23/02 ,  H04H20/95 ,  H04L5/0016 ,  H04L5/0048 ,  H04L25/0226

Abstract: The present invention relates to a multimedia broadcast signal transmitting/receiving method, and it generates a pilot signal by mapping transmission information on an orthogonal code, disperses the pilot signal in the frequency domain, modulates the dispersed pilot signal, and transmits the modulated pilot signal.

Abstract translation: 多媒体广播信号发送/接收方法技术领域本发明涉及一种多媒体广播信号发送/接收方法，并且通过映射正交码上的发送信息来生成导频信号，将导频信号分散在频域中，对分散的导频信号进行调制，并发送调制后的导频信号 。

公开(公告)号：WO2008136618A1

公开(公告)日：2008-11-13

申请号：PCT/KR2008/002509

申请日：2008-05-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  LEE, Gwang Soon ,  KIM, Young Su ,  BAE, Jae-Hwui ,  YANG, Kyu Tae ,  YUN, Joung il ,  KIM, Kwang-Yong ,  SEO, Jae Hyun ,  KIM, Heung Mook ,  KIM, Ju Yeun ,  CHOI, Seomee ,  KIM, Hyuk ,  LIM, Jong Soo ,  LEE, Soo In ,  AHN, Chie teuk

Inventor： LEE, Gwang Soon ,  KIM, Young Su ,  BAE, Jae-Hwui ,  YANG, Kyu Tae ,  YUN, Joung il ,  KIM, Kwang-Yong ,  SEO, Jae Hyun ,  KIM, Heung Mook ,  KIM, Ju Yeun ,  CHOI, Seomee ,  KIM, Hyuk ,  LIM, Jong Soo ,  LEE, Soo In ,  AHN, Chie teuk

IPC: H04N7/24

CPC classification number: H03M13/296 ,  H03M13/23 ,  H03M13/2771 ,  H03M13/2957 ,  H03M13/2996 ,  H03M13/356 ,  H03M13/3988 ,  H03M13/6368 ,  H04H20/95 ,  H04N21/234327 ,  H04N21/2383 ,  H04N21/6112 ,  H04N21/64792

Abstract: The present invention relates to a channel encoder for an enhancement layer of a digital-multimedia-broadcasting transmitting device, a digital broadcasting transmitting device, a digital broadcasting receiving device, and an extension structure of sub-channel configuration field (FIG0/1 ) for designating a protection level of sub-channel at the enhancement layer. In a channel encoder for the enhancement layer according to the invention, the channel encoder is included in a hierarchical DMB transmitting unit that modulates a base layer transport stream and a enhancement layer transport stream for video and audio by a base layer modulation system and an enhancement layer modulation system, respectively, and performs symbol mapping of the enhancement layer according to the position of a constellation based on the base layer modulation system. Furthermore, the hierarchical DMB transmitting unit includes an energy dispersal scrambler that disperses energy of the enhancement layer transport stream, and a turbo encoder that receives a double-binary input vector corresponding to an output of the energy dispersal scrambler and encodes it by using a double-binary circular recursive systematic code.

Abstract translation: 本发明涉及用于数字多媒体广播发送装置的增强层的信道编码器，数字广播发送装置，数字广播接收装置和子信道配置字段的扩展结构（图0/1），用于 在增强层指定子信道的保护级别。 在根据本发明的用于增强层的信道编码器中，信道编码器被包括在分层DMB发送单元中，该单元通过基本层调制系统和增强来调制用于视频和音频的基本层传输流和增强层传输流 分层调制方式，根据基本层调制方式的星座位置进行增强层的符号映射。 此外，分级DMB发送单元包括分散增强层传输流的能量的能量分散扰频器，以及接收与能量分散扰频器的输出相对应的双二进制输入向量的turbo编码器，并且通过使用双 二进制循环递归系统代码。

公开(公告)号：WO2006057526A1

公开(公告)日：2006-06-01

申请号：PCT/KR2005/003998

申请日：2005-11-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KIM, Ju-yeun ,  KIM, Young-su ,  BAE, Jae-hwui ,  LEE, Hyun ,  LIM, Jong-soo ,  LEE, Soo-in

Inventor： KIM, Ju-yeun ,  KIM, Young-su ,  BAE, Jae-hwui ,  LEE, Hyun ,  LIM, Jong-soo ,  LEE, Soo-in

IPC: H04N7/015

CPC classification number: H04B7/0897 ,  H04B7/0408 ,  H04B7/086 ,  H04L25/0206

Abstract: There are provided a method for selecting an optimal beam to improve digital broadcasting receiving performance, and a digital broadcasting receiving apparatus using the same. The method includes the steps of: a) calculating a mainpath Signal to Multipath signal and Noise Ratio (SMNR) based on a channel impulse response for a plurality of beams which are formed according to steering directions from output signals of antennas, wherein the output signal of each antenna has different phase shift according to location of antenna element; b) selecting a predetermined number of beams having a high SMNR value by comparing the calculated SMNR value for respective beam; c) calculating a mainpath Signal to Dominant Multipath signal Ratio (SDMR) based on a channel impulse response corresponding to the selected beam; and d) selecting a beam output signal having the biggest SDMR value by comparing SDMR values calculated in selecting a predetermined number of beams.

Abstract translation: 提供了一种用于选择最佳波束以改善数字广播接收性能的方法，以及使用该方法的数字广播接收装置。 该方法包括以下步骤：a）基于根据天线输出信号的转向方向形成的多个波束的信道脉冲响应，计算主路径信号与多径信号和噪声比（SMNR），其中输出信号 每个天线根据天线元件的位置具有不同的相移; b）通过比较所计算的各个光束的SMNR值来选择具有高SMNR值的预定数量的光束; c）基于对应于所选择的波束的信道脉冲响应来计算主路径信号到主导多径信号比（SDMR）; 以及d）通过比较在选择预定数量的光束中计算的SDMR值来选择具有最大SDMR值的光束输出信号。

公开(公告)号：WO2011159103A2

公开(公告)日：2011-12-22

申请号：PCT/KR2011004396

申请日：2011-06-16

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV NAT CHONNAM IND FOUND ,  BAE JAE HWUI ,  LEE GWANG SOON ,  LEE HYUN ,  LEE BONG HO ,  KIM YOUNG SU ,  SONG YUN JEONG ,  LEE SOO IN ,  JUNG TAE JIN ,  KIM JUN HO ,  KIM HO JUN ,  HUR NAMHO ,  LIM HYOUNG SOO ,  SEO JAE HYUN ,  KIM HEUNG MOOK

Inventor： BAE JAE HWUI ,  LEE GWANG SOON ,  LEE HYUN ,  LEE BONG HO ,  KIM YOUNG SU ,  SONG YUN JEONG ,  LEE SOO IN ,  JUNG TAE JIN ,  KIM JUN HO ,  KIM HO JUN ,  HUR NAMHO ,  LIM HYOUNG SOO ,  SEO JAE HYUN ,  KIM HEUNG MOOK

IPC: H04B7/04

CPC classification number: H04B7/0443 ,  H04B7/0682 ,  H04L27/0008 ,  H04L27/367

Abstract: Disclosed is a broadcast data transmission system. Said broadcast data transmission system transmits broadcast data by using a plurality of transmission antennas and a plurality of receiving antennas. A broadcast data transmission device comprised in the broadcast data transmission system determines different modulation techniques for each transmission antenna, determines different kinds of transmission power for each data stream according to the determined modulation techniques, and determines different precoding vectors.

Abstract translation: 公开了一种广播数据传输系统。 所述广播数据传输系统通过使用多个发送天线和多个接收天线发送广播数据。 包含在广播数据传输系统中的广播数据传输设备为每个发射天线确定不同的调制技术，根据确定的调制技术确定每个数据流的不同种类的发射功率，并且确定不同的预编码矢量。

公开(公告)号：WO2009157717A3

公开(公告)日：2010-12-29

申请号：PCT/KR2009003411

申请日：2009-06-24

Applicant: KOREA ELECTRONICS TELECOMM ,  LIM JONG SOO ,  KIM YOUNG SU ,  YANG KYU TAE ,  BAE JAE HWUI ,  BAE BYUNGJUN ,  KIM KWANG-YONG ,  YUN JOUNGIL ,  CHOI SEOMEE ,  LEE GWANG SOON ,  LEE JI BONG ,  SONG YUN JEONG ,  LEE SOO IN ,  HWANG SEUNGKU ,  AHN CHIETEUK ,  HUR NAMHO

Inventor： LIM JONG SOO ,  KIM YOUNG SU ,  YANG KYU TAE ,  BAE JAE HWUI ,  BAE BYUNGJUN ,  KIM KWANG-YONG ,  YUN JOUNGIL ,  CHOI SEOMEE ,  LEE GWANG SOON ,  LEE JI BONG ,  SONG YUN JEONG ,  LEE SOO IN ,  HWANG SEUNGKU ,  AHN CHIETEUK ,  HUR NAMHO

IPC: H04N7/173 ,  H04B1/707 ,  H04N7/015

CPC classification number: H04H60/07 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04H20/46 ,  H04H20/72 ,  H04H2201/11 ,  H04J13/18

Abstract: A digital multimedia broadcasting transmitting apparatus includes: a variable spreader (120) that spreads a pilot signal to a frequency domain and outputs a signal having a format where the pilot signal is partially inserted to the entire subcarriers; a modulator (130) that modulates the output of the variable spreader (120); and an antenna (140) that transmits the signal modulated by the modulator (130).

Abstract translation: 数字多媒体广播发送装置包括：可变扩展器（120），其将导频信号扩频到频域，并将具有导频信号部分插入的格式的信号输出到整个副载波; 调制器（130），其对所述可变扩展器（120）的输出进行调制; 以及发射由调制器（130）调制的信号的天线（140）。

公开(公告)号：WO2009157717A2

公开(公告)日：2009-12-30

申请号：PCT/KR2009/003411

申请日：2009-06-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  LIM, Jong Soo ,  KIM, Young Su ,  YANG, Kyu Tae ,  BAE, Jae Hwui ,  BAE, Byungjun ,  KIM, Kwang-Yong ,  YUN, Joungil ,  CHOI, Seomee ,  LEE, Gwang Soon ,  LEE, Ji Bong ,  SONG, Yun Jeong ,  LEE, Soo In ,  HWANG, Seungku ,  AHN, Chieteuk ,  HUR, Namho

Inventor： LIM, Jong Soo ,  KIM, Young Su ,  YANG, Kyu Tae ,  BAE, Jae Hwui ,  BAE, Byungjun ,  KIM, Kwang-Yong ,  YUN, Joungil ,  CHOI, Seomee ,  LEE, Gwang Soon ,  LEE, Ji Bong ,  SONG, Yun Jeong ,  LEE, Soo In ,  HWANG, Seungku ,  AHN, Chieteuk ,  HUR, Namho

IPC: H04N7/173

CPC classification number: H04H60/07 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04H20/46 ,  H04H20/72 ,  H04H2201/11 ,  H04J13/18

Abstract: A digital multimedia broadcasting transmitting apparatus includes: a variable spreader that spreads a pilot signal to a frequency domain and outputs a signal having a format where the pilot signal is partially inserted to the entire subcarriers; a modulator that modulates the output of the variable spreader; and an antenna that transmits the signal modulated by the modulator.

Abstract translation: 数字多媒体广播发送装置包括：可变扩展器，其将导频信号扩频到频域，并将具有导频信号部分插入的格式的信号输出到整个子载波; 调制可变扩展器的输出的调制器; 以及发送由调制器调制的信号的天线。

公开(公告)号：WO2007066904A1

公开(公告)日：2007-06-14

申请号：PCT/KR2006/004626

申请日：2006-11-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KIM, Ju-Yeun ,  KIM, Young-Su ,  BAE, Jae-Hwui ,  LEE, Hyun ,  LIM, Jong-Soo ,  LEE, Soo-In

Inventor： KIM, Ju-Yeun ,  KIM, Young-Su ,  BAE, Jae-Hwui ,  LEE, Hyun ,  LIM, Jong-Soo ,  LEE, Soo-In

IPC: H04B7/08

CPC classification number: H04B7/082

Abstract: Provided are an apparatus and method for selecting an optimal signal using auxiliary equalization in a diversity receiver. The optimal signal selecting apparatus includes: a plurality of sync recovery units for extracting sync information from baseband signals, which are candidate signals, except a baseband signal selected as a current optimal signal a plurality of auxiliary equalizers for channel-equalizing the candidate signals based on the extracted sync information; a plurality of SNR measuring units for measuring signal-to-noise ratios (SNRs) of the candidate signals inputted to the auxiliary equalizers and the candidates signals equalized in the auxiliary equalizers; and an optimal signal selector for selecting an optimal candidate signal from the candidate signals by using the extracted sync information and the measured SNRs, and replacing the optimal signal with the optimal candidate signal when reception quality of the current optimal signal is poor.

Abstract translation: 提供了一种用于在分集接收机中使用辅助均衡来选择最佳信号的装置和方法。 最佳信号选择装置包括：多个同步恢复单元，用于从作为候选信号的基带信号中提取同步信息，除了选择为当前最优信号的基带信号，多个辅助均衡器，用于对候选信号进行信道均衡，基于 提取的同步信息; 多个SNR测量单元，用于测量输入到辅助均衡器的候选信号的信噪比（SNR）和在辅助均衡器中均衡的候选信号; 以及最优信号选择器，用于通过使用所提取的同步信息和测量的SNR从候选信号中选择最佳候选信号，并且当当前最佳信号的接收质量差时，用最佳候选信号替换最佳信号。