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    • 1. 发明授权
    • Apparatus and method for reducing Bit Error Rates (BER) and Frame Error Rates (FER) using turbo decoding in a digital communication system
    • 用于在数字通信系统中使用turbo解码来降低误码率(BER)和帧错误率(FER)的装置和方法
    • US07032156B2
    • 2006-04-18
    • US10622508
    • 2003-07-21
    • Nam-Yul YuMin-Goo KimSang-Hyuck Ha
    • Nam-Yul YuMin-Goo KimSang-Hyuck Ha
    • H03M13/45
    • H03M13/3905H03M13/2957H03M13/3911
    • An Forward Error Correction (FEC) apparatus and method for reducing Bit error rates (BER) and Frame Error Rates (FER) using turbo decoding in a digital communication system. In a constituent decoder for decoding a turbo code, a first adder calculates the LLR of a received code symbol by calculating the difference between the probability of the code symbol being 1 and that of the code symbol being 0 at an arbitrary state of a turbo decoding trellis. A second adder adds the transmission information and a priori information of the code symbol. A third adder calculates the difference between the outputs of the first and second adders as extrinsic information. A first multiplier multiplies the output of the third adder by a predetermined weighting factor as a feedback gain. A correction value calculator calculates a correction value using the difference between the best metric and the second best metric of the code symbol. A fourth adder adds the correction value to the output of the first multiplier.
    • 一种用于在数字通信系统中使用turbo解码来降低误码率(BER)和帧错误率(FER)的前向纠错(FEC)装置和方法。 在用于解码turbo码的构成解码器中,第一加法器通过在Turbo解码的任意状态下计算代码符号为1的概率与代码符号为0的概率之间的差来计算接收到的代码符号的LLR 格子 第二加法器将传输信息和代码符号的先验信息相加。 第三加法器计算第一和第二加法器的输出之间的差作为外在信息。 第一乘法器将第三加法器的输出乘以预定的加权因子作为反馈增益。 校正值计算器使用代码符号的最佳度量和第二最佳度量之间的差来计算校正值。 第四加法器将校正值与第一乘法器的输出相加。
    • 2. 发明授权
    • Method and apparatus for controlling turbo decoder input
    • 用于控制turbo解码器输入的方法和装置
    • US07505535B2
    • 2009-03-17
    • US10718816
    • 2003-11-24
    • Sang-Hyuck HaNam-Yul YuMin-Goo Kim
    • Sang-Hyuck HaNam-Yul YuMin-Goo Kim
    • H03D1/00
    • H04L1/0059H03M13/2771H03M13/2957H03M13/6566H04L1/0066H04L1/0071
    • A method and apparatus for effectively controlling data input to a turbo decoder for decoding forward packet data traffic in a 1xEV-DV mobile station (MS) are disclosed. After received code symbols are stored in one of several memories and read in deinterleaving order, read addresses and chip select signals are generated for the memories based on encoder packet size in synchronization to a decoder clock signal. The decoding starts by inputting a predetermined number of code symbols to the turbo decoder in an appropriate order. The decoder input apparatus reads demodulated forward packet data from decoder input buffers in an appropriate order using the read addresses and chip select signals to generate turbo decoder input data in an appropriate form. Thus, a small-size, low-cost, low-power consumption MS is achieved by processing channel-interleaved data at high speed and with reduced process delay and providing them to a decoder.
    • 公开了一种用于有效地控制输入到turbo解码器的数据的方法和装置,用于解码1xEV-DV移动台(MS)中的前向分组数据业务。 在接收到的代码符号被存储在几个存储器中的一个并以解交错顺序读取时,基于与解码器时钟信号同步的编码器分组大小,为存储器生成读取地址和片选信号。 通过以适当的顺序向turbo解码器输入预定数量的码符号开始解码。 解码器输入装置使用读取的地址和芯片选择信号以适当的顺序从解码器输入缓冲器读取解调的前向分组数据,以适当的形式产生turbo解码器输入数据。 因此,通过以高速和减少的处理延迟处理信道交错数据并将其提供给解码器来实现小尺寸,低成本,低功耗的MS。
    • 5. 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。
    • 7. 发明授权
    • Apparatus and method for controlling an output buffer in a hybrid automatic repeat request (HARQ) mobile communication system
    • 用于控制混合自动重传请求(HARQ)移动通信系统中的输出缓冲器的装置和方法
    • US07499417B2
    • 2009-03-03
    • US10752101
    • 2004-01-07
    • Min-Goo KimSang-Hyuck HaJin-Woo Heo
    • Min-Goo KimSang-Hyuck HaJin-Woo Heo
    • H04B7/00
    • H04L1/005H04L1/0066H04L1/16H04L1/1819H04L1/1835H04L1/1854
    • A mobile station apparatus and method provide for receiving packet data transmitted over a packet data channel, decoding the received packet data and delivering the decoded packet data to an upper layer in a mobile communication system transmitting packet data transmitted over a forward packet data channel and transmitting, over a forward packet data control channel, demodulation and decoding information of packet data transmitted over the forward packet data channel. The apparatus and method comprise a fast turbo decoder for decoding packet data received over the packet data channel depending on information received over the forward packet data control channel, storing the decoded data, and outputting buffer information of the stored data; an output buffer for storing the received packet data, and outputting the packet data upon receiving a read request. The apparatus and method further comprise an output buffer controller for receiving information on the decoded data and the buffer information from the fast turbo decoder, and generating an interrupt signal and a read address for reading data stored in the output buffer using the received data information and buffer information; and a processor for reading data stored in the output buffer according to the read address upon receiving the interrupt signal from the output buffer controller.
    • 一种移动站装置和方法,用于接收通过分组数据信道发送的分组数据,对接收到的分组数据进行解码,并将解码的分组数据传送到移动通信系统中的上层,该移动通信系统发送通过前向分组数据信道发送的分组数据,并发送 在前向分组数据控制信道上,通过前向分组数据信道发送的分组数据的解调和解码信息。 该装置和方法包括:快速turbo解码器,用于根据在前向分组数据控制信道上接收的信息,解码分组数据信道上接收的分组数据,存储解码数据,并输出所存储数据的缓冲器信息; 用于存储所接收的分组数据的输出缓冲器,以及在接收到读取请求时输出分组数据。 该装置和方法还包括输出缓冲器控制器,用于从快速turbo解码器接收关于解码数据和缓冲器信息的信息,并且使用所接收的数据信息产生用于读取存储在输出缓冲器中的数据的中断信号和读地址;以及 缓冲信息; 以及处理器,用于在从输出缓冲器控制器接收到中断信号时,根据读取地址读取存储在输出缓冲器中的数据。
    • 9. 发明授权
    • Method and device for transmitting packet data in mobile communication system
    • 用于在移动通信系统中发送分组数据的方法和装置
    • US07366272B2
    • 2008-04-29
    • US09986210
    • 2001-10-22
    • Min-Goo KimSang-Hyuck Ha
    • Min-Goo KimSang-Hyuck Ha
    • H04L23/00H04L27/00H03M13/03
    • H04L1/0083H04L1/0069H04L1/0071H04L1/1819H04L1/1845H04L1/1867
    • There is provided a device and method for transmitting packet data in a mobile communication system. A sub-code generator generates a plurality of sub-codes with the same or different code rates for the input of a PLP (Physical Layer Packet) information bit stream. A controller determines a minimum data rate by which the number of the modulation symbols of a sub-code generated by a predetermined modulation method is equal to or greater than the number of transmittable modulation symbols for each time period. A symbol pruner prunes part of the modulation symbols of the sub-code to make the number of the modulation symbols of the sub-code equal to the number of transmittable modulation symbols for the time period, if the number of the modulation symbols of the sub-code is greater than the number of transmittable modulation symbols for the time period.
    • 提供了一种用于在移动通信系统中发送分组数据的设备和方法。 子代码生成器产生用于输入PLP(物理层分组)信息比特流的相同或不同代码率的多个子代码。 控制器确定通过预定调制方法生成的子码的调制符号的数量等于或大于每个时间段的可发送调制符号的数量的最小数据速率。 符号修剪器修剪子代码的调制符号的一部分,以使子码的调制符号的数量等于该时间段的可发送调制符号的数量,如果子信道的调制符号的数目 -code大于该时间段的可传输调制符号的数量。