会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 81. 发明授权
    • Apparatus and method for recovering frequency in an orthogonal frequency division multiplexing system
    • 在正交频分复用系统中恢复频率的装置和方法
    • US07733971B2
    • 2010-06-08
    • US11606353
    • 2006-11-30
    • Hee-Jin RohSu-Jin YoonMin-Goo Kim
    • Hee-Jin RohSu-Jin YoonMin-Goo Kim
    • H04K1/10
    • H04L27/266H04L27/2659H04L27/2675H04L27/2686
    • An apparatus and method for recovering a carrier frequency of a received signal using a predefined symbol in an OFDM system is provided. A maximum value detector detects at least three values and their corresponding offsets in descending order among auto-correlation values calculated within a specific frequency offset range between a received signal and a predefined symbol. A frequency offset corrector compares a ratio of a first auto-correlation value to a second auto-correlation value with a predetermined first threshold, determines whether first and second frequency offsets corresponding to the first and second auto-correlation values are adjacent to each other if the ratio of the auto-correlation values is less than the first threshold, and determines an initial carrier frequency offset using a difference between the first frequency offset and a frequency offset correction value determined according to system, if the first and second frequency offsets are adjacent to each other and a ratio of the second auto-correlation value and a third auto-correlation value is greater than a predetermined second threshold.
    • 提供了一种用于在OFDM系统中使用预定符号来恢复接收信号的载波频率的装置和方法。 最大值检测器在接收信号和预定义符号之间的特定频率偏移范围内计算的自相关值之中以降序检测至少三个值及其相应的偏移。 频率偏移校正器将第一自相关值与第二自相关值的比率与预定的第一阈值进行比较,确定与第一和第二自相关值对应的第一和第二频率偏移是否彼此相邻如果 所述自相关值的比率小于所述第一阈值,并且如果所述第一和第二频率偏移相邻,则使用根据系统确定的所述第一频率偏移和频率偏移校正值之间的差来确定初始载波频率偏移 并且第二自相关值和第三自相关值的比率大于预定的第二阈值。
    • 83. 发明授权
    • Apparatus for controlling hybrid automatic repeat request (HARQ) in a mobile communication system
    • 用于在移动通信系统中控制混合自动重传请求(HARQ)的装置
    • US07594153B2
    • 2009-09-22
    • US10691644
    • 2003-10-24
    • Min-Goo KimSang-Hyuck HaJin-Woo Heo
    • Min-Goo KimSang-Hyuck HaJin-Woo Heo
    • H03M13/00
    • H04L1/008H04L1/1812
    • An apparatus for controlling a Hybrid Automatic Repeat Request (HARQ) is provided. In the apparatus, a physical layer includes a decoder for decoding a control message received over the packet data control channel, a demodulator for demodulating packet data received over the packet data channel, and a turbo decoder for decoding the demodulated packet data. A physical layer's HARQ controller determines whether to demodulate and decode the received packet data depending on a decoding result of the control message, outputs the decoded control message to the demodulator and the turbo decoder for demodulation and decoding of the received packet data, controls output of a response signal according to decoding result of the packet data, and delivers the turbo-decoded packet data to an upper layer.
    • 提供了一种用于控制混合自动重传请求(HARQ)的装置。 在该装置中,物理层包括用于解码通过分组数据控制信道接收的控制消息的解码器,用于解调通过分组数据信道接收的分组数据的解调器,以及用于对解调的分组数据进行解码的turbo解码器。 物理层的HARQ控制器根据控制消息的解码结果确定是否对接收到的分组数据进行解调和解码,将解码的控制消息输出到解调器和turbo解码器,以便对接收的分组数据进行解调和解码, 响应信号,根据分组数据的解码结果,将turbo解码的分组数据传送到上层。
    • 86. 发明授权
    • Method and apparatus for receiving and deshuffling shuffled data in a high-rate packet data telecommunication system
    • 用于在高速率分组数据电信系统中接收和去混洗洗牌数据的方法和装置
    • US07349494B2
    • 2008-03-25
    • US10671553
    • 2003-09-29
    • Nam-Yul YuSang-Hyuck HaMin-Goo Kim
    • Nam-Yul YuSang-Hyuck HaMin-Goo Kim
    • H04L27/00
    • H04L1/0071H04L1/0003H04L1/007H04L1/0083H04L27/18H04L27/34
    • A method and apparatus for deshuffling received shuffled data in a communication system supporting multi-level modulation. A transmitter encodes information bits and shuffles code symbols so that systematic symbols having a relatively high priority are disposed at high-transmission reliability positions and parity symbols having a relatively low priority are disposed at low-transmission reliability positions in a modulation symbol. A receiver demodulates received data and outputs a modulation symbol having a plurality of code symbols, stores the code symbols separately as systematic symbols and parity symbols in corresponding memory areas according to a deshuffling order corresponding to the shuffling, reads the stored code symbols, decodes the stored code symbols at a predetermined code rate, and thus outputs an packet.
    • 一种在支持多级调制的通信系统中对混洗数据进行混洗的方法和装置。 发送器对信息比特进行编码并混合编码符号,使得具有较高优先级的系统符号被布置在高传输可靠性位置,并且具有较低优先级的奇偶校验符号被布置在调制符号中的低传输可靠性位置。 接收机对接收到的数据进行解调并输出具有多个码符号的调制符号,根据与洗牌相对应的混洗顺序将代码符号分别存储在相应的存储区域中作为系统符号和奇偶校验符号,读出存储的码元,对 以预定的码率存储代码符号,从而输出分组。
    • 89. 发明授权
    • Apparatus and method for symbol combining in a mobile communication system
    • 移动通信系统中符号组合的装置和方法
    • US07302012B2
    • 2007-11-27
    • US10299225
    • 2002-11-19
    • Min-Goo KimSang-Hyuck Ha
    • Min-Goo KimSang-Hyuck Ha
    • H03K9/00H04L27/00
    • H04L1/0045H04L1/0003H04L1/0066H04L1/1816H04L1/1819H04L1/1845
    • An apparatus and method for soft-combining demodulated symbols in a mobile communication system. In the mobile communication system, a transmitting apparatus modulates symbols in different modulation schemes and a receiving apparatus demodulates the modulation symbols in correspondence with the modulation schemes. The soft symbol combining apparatus includes an RWF calculator, an RWF controller, and a soft symbol controller. The RWF calculator calculates an energy of a modulation symbol from each of the modulation schemes and determines relative ratios of the energies to be RWFs for the modulation schemes. The RWF controller multiplies soft metrics of the demodulated soft symbols by the RWFs. Finally, the soft symbol controller combines the multiplied soft metrics.
    • 一种用于在移动通信系统中软解组合符号的装置和方法。 在移动通信系统中,发送装置以不同的调制方式对符号进行调制,接收装置根据调制方式对调制符号进行解调。 软符号组合装置包括RWF计算器,RWF控制器和软符号控制器。 RWF计算器从每个调制方案计算调制符号的能量,并确定用于调制方案的能量为RWF的相对比率。 RWF控制器将解调的软符号的软度乘以RWF。 最后,软符号控制器组合乘法软度量。
    • 90. 发明申请
    • Reverse transmission apparatus and method for improving transmission throughput in a data communication system
    • 用于提高数据通信系统中的传输吞吐量的反向传输装置和方法
    • US20070168831A1
    • 2007-07-19
    • US11708775
    • 2007-02-21
    • Min-Goo KimSang-Hyuck Ha
    • Min-Goo KimSang-Hyuck Ha
    • H03M13/00
    • H04L1/1845H04L1/0003H04L1/0017H04L1/0066H04L1/0071H04L1/1819
    • There is provided a method for encoding input information bits by a quasi-complementary turbo code (QCTC) at a predetermined code rate to generate codeword symbols and transmitting the generated codeword symbols. The method comprises selecting one pattern among predetermined patterns corresponding to at least one of the generated codeword symbols in order to transmit the generated codeword symbols by a sub-packet length determined according to a data rate; reading information corresponding to the data rate, the sub-packet length and the selected pattern from a table in which identification information indicating the data rate, the sub-packet length and the selected pattern is previously mapped to given information; and transmitting the generated codeword symbols according to the read information and the selected pattern.
    • 提供了一种用于以预定码率对准互补turbo码(QCTC)对输入信息比特进行编码以产生码字符号并发送所生成的码字符号的方法。 该方法包括在与所生成的码字符号中的至少一个相对应的预定模式中选择一个模式,以便根据数据速率确定生成的码字符号以发送子分组长度; 从表中预先映射了表示数据速率,子分组长度和所选择的模式的识别信息的表中读取与数据速率对应的信息,子分组长度和所选择的模式; 以及根据读取的信息和所选择的模式发送所生成的码字符号。