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11. 发明授权

US07609609B2 Apparatus and method for processing digital signal in an OFDMA wireless communication system 失效
标题翻译：用于在OFDMA无线通信系统中处理数字信号的装置和方法
公开(公告)号：US07609609B2
公开(公告)日：2009-10-27
申请号：US11274900
申请日：2005-11-16
申请人： Seong-Wook Song , Yong-Chul Song , Young-Mo Gu , Min-Goo Kim
发明人： Seong-Wook Song , Yong-Chul Song , Young-Mo Gu , Min-Goo Kim
IPC分类号： H04J9/00
CPC分类号： H04L27/263 , H04L27/2608
摘要： An apparatus and method is provided to process a digital signal in an orthogonal frequency division multiple access (OFDMA) wireless communication system. In the apparatus, a memory stores the number of subcarriers allocated to a mobile terminal and stores an inverse discrete Fourier transform (IDFT) coefficient. A controller outputs a mode selection signal indicating a transmission mode or a reception mode. An inverse fast Fourier transform (IFFT) block multiplies a first result obtained by determining a bitwidth for the IDFT coefficient according to the number of subcarriers by a second result obtained by determining a bitwidth for data according to the number of subcarriers.
摘要翻译：提供了一种在正交频分多址（OFDMA）无线通信系统中处理数字信号的装置和方法。在该装置中，存储器存储分配给移动终端的子载波的数量，并且存储逆离散傅里叶变换（IDFT）系数。控制器输出指示发送模式或接收模式的模式选择信号。逆快速傅立叶变换（IFFT）块将通过根据副载波的数量确定IDFT系数的位宽获得的第一结果乘以通过根据子载波的数量确定数据的位宽而获得的第二结果。

12. 发明授权

US07539928B2 Method and apparatus for decoding inner and outer codes in a mobile communication system 有权
标题翻译：用于解码移动通信系统中的内部和外部代码的方法和装置
公开(公告)号：US07539928B2
公开(公告)日：2009-05-26
申请号：US11140077
申请日：2005-05-31
申请人： Jong-Hun Rhee , Su-Yean Kim , Min-Goo Kim
发明人： Jong-Hun Rhee , Su-Yean Kim , Min-Goo Kim
IPC分类号： H03M13/00
CPC分类号： H03M13/091 , H03M13/151 , H03M13/251 , H03M13/2936
摘要： A method and apparatus for decoding inner and/or outer codes in a mobile communication system. The inner and/or outer codes are decoded at low power and high speed. An inner decoder performs channel decoding and cyclic redundancy checking (CRC) on symbols received through a wireless network. An outer decoder performs outer coding on the received symbols. An erasure symbol identifier outputs information of erasure symbols in which a reception error has occurred. The reception error is determined from a result of the CRC on the received symbols. A controller counts the number of received symbols and the number of erasure symbols, and stops an operation of at least one of the inner and outer decoders when at least one of the number of received symbols and the number of erasure symbols is equal to a preset reference value.
摘要翻译：一种用于在移动通信系统中解码内部和/或外部代码的方法和装置。内部和/或外部代码以低功率和高速度进行解码。内部解码器对通过无线网络接收的符号执行信道解码和循环冗余校验（CRC）。外部解码器对所接收的符号执行外部编码。擦除符号标识符输出已经发生接收错误的擦除符号的信息。从接收到的符号上的CRC的结果确定接收错误。控制器对接收到的符号的数量和擦除符号的数量进行计数，并且当至少一个接收符号和擦除符号的数量等于预设值时，停止内部和外部解码器中的至少一个的操作参考值。

13. 发明授权

US07536623B2 Method and apparatus for generating a low-density parity check code 有权
标题翻译：用于生成低密度奇偶校验码的方法和装置
公开(公告)号：US07536623B2
公开(公告)日：2009-05-19
申请号：US11289300
申请日：2005-11-30
申请人： Sang-Hyo Kim , Han-Ju Kim , Min-Goo Kim , Young-Mo Gu
发明人： Sang-Hyo Kim , Han-Ju Kim , Min-Goo Kim , Young-Mo Gu
IPC分类号： H03M13/13
CPC分类号： H03M13/6362 , H03M13/116 , H03M13/118 , H03M13/1185 , H03M13/1188
摘要： A low density parity check (LDPC) code generating method and apparatus are provided. A parity check matrix with (N−K) rows for check nodes and N columns for variable nodes are formed to encode an information sequence of length K to a codeword of length N. The parity check matrix is divided into an information part matrix with K columns and a parity part matrix with (N−k) columns. The parity part is divided into P×P subblocks. P is a divisor of (N−K). First and second diagonals are defined in the parity part matrix and the second diagonal is a shift of the first diagonal by f subblocks. Shifted identity matrices are placed on the first and second diagonals and zero matrices are filled elsewhere. An odd number of delta matrices each having only one element of 1 are placed in one subblock column of the parity part matrix. The parity check matrix is stored.
摘要翻译：提供了一种低密度奇偶校验（LDPC）码生成方法和装置。形成具有用于校验节点的（NK）行和用于可变节点的N列的奇偶校验矩阵，以将长度为K的信息序列编码为长度为N的码字。奇偶校验矩阵被划分为具有K列的信息部分矩阵，具有（Nk）列的奇偶校验部分矩阵。奇偶校验部分分为PxP子块。 P是（N-K）的除数。在奇偶校验部分矩阵中定义第一和第二对角线，第二对角线是第一对角线由f子块的移位。移位的身份矩阵放置在第一和第二个对角线上，零矩阵填充到别处。每个仅具有1个元素的奇数数量的Δ矩阵被放置在奇偶校验部分矩阵的一个子块列中。存储奇偶校验矩阵。

14. 发明授权

US07505535B2 Method and apparatus for controlling turbo decoder input 有权
标题翻译：用于控制turbo解码器输入的方法和装置
公开(公告)号：US07505535B2
公开(公告)日：2009-03-17
申请号：US10718816
申请日：2003-11-24
申请人： Sang-Hyuck Ha , Nam-Yul Yu , Min-Goo Kim
发明人： Sang-Hyuck Ha , Nam-Yul Yu , Min-Goo Kim
IPC分类号： H03D1/00
CPC分类号： H04L1/0059 , H03M13/2771 , H03M13/2957 , H03M13/6566 , H04L1/0066 , H04L1/0071
摘要： 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.
摘要翻译：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。

15. 发明申请

US20080288850A1 METHOD AND APPARATUS FOR CODE BLOCK SEGMENTATION IN A MOBILE COMMUNICATION SYSTEM 有权
标题翻译：移动通信系统中代码块分割的方法和装置
公开(公告)号：US20080288850A1
公开(公告)日：2008-11-20
申请号：US12023477
申请日：2008-01-31
申请人： Jong-Hun Rhee , Min-Goo Kim
发明人： Jong-Hun Rhee , Min-Goo Kim
IPC分类号： H03M13/07 , G06F11/10
CPC分类号： H04L1/0066 , H04L1/0008
摘要： A method for segmenting an information word into code blocks in a mobile communication system. The method includes setting a number C of code blocks to a minimum integer not less than a value obtained by dividing X by Z; when sizes K of all code blocks are determined to be equal when a length X of the information word is greater than a maximum length Z of each code block, determining a minimum integer value T not less than a value obtained by dividing a size of the information word by a number of code blocks, and determining, as K, a maximum value most approaching the value T among the values based on which a size of the code block can be set in units of eight bits; and generating a code block by inserting filler bits into a specific code block when a value obtained by multiplying K by C is greater than X.
摘要翻译：一种在移动通信系统中将信息字分割为码块的方法。该方法包括将代码块的数量C设置为不小于通过将X除以Z而获得的值的最小整数; 当信息字的长度X大于每个码块的最大长度Z时，当所有码块的大小K被确定为相等时，确定最小整数值T不小于通过将信息字由多个代码块组成，并且基于可以以8位为单位设置代码块的大小的值，确定最接近值T的最大值; 并且当通过将K乘以C获得的值大于X时，通过将填充比特插入到特定代码块中来生成代码块。

16. 发明授权

US07454685B2 Method and apparatus for decoding low density parity check code using united node processing 有权
标题翻译：使用联合节点处理解码低密度奇偶校验码的方法和装置
公开(公告)号：US07454685B2
公开(公告)日：2008-11-18
申请号：US11283732
申请日：2005-11-22
申请人： Sang-Hyo Kim , Sung-Jin Park , Han-Ju Kim , Min-Goo Kim
发明人： Sang-Hyo Kim , Sung-Jin Park , Han-Ju Kim , Min-Goo Kim
IPC分类号： H03M13/00
CPC分类号： H03M13/1137 , H03M13/1114 , H03M13/114 , H03M13/116
摘要： A method and apparatus are provided for decoding an LDPC code including a plurality of check nodes and a plurality of variable nodes. The apparatus includes a check node selection scheduler that selects at least one of the check nodes, an LLR memory that stores an input LLR value for the variable nodes as an initial LLR value and stores updated LLR values for variable nodes connected to the selected check node, and a check node message memory that stores a check node message indicating a result value of check node processing on the selected check node. The apparatus further includes at least one united node processor that generates a variable node message by subtracting the check node message of the selected check node from corresponding LLR values read from the LLR memory, performs check node processing on the variable node message, calculates an LLR value updated by adding the variable node message to the check node processing result value, and delivers the calculated LLR value to the LLR memory.
摘要翻译：提供了一种解码包括多个校验节点和多个可变节点的LDPC码的方法和装置。该装置包括校验节点选择调度器，该校验节点选择调度器选择校验节点中的至少一个，将可变节点的输入LLR值存储为初始LLR值的LLR存储器，并且存储用于连接到所选校验节点的变量节点的更新的LLR值以及检查节点消息存储器，其将选择的校验节点上指示校验节点处理的结果值的校验节点消息存储。该装置还包括至少一个联合节点处理器，其通过从从LLR存储器读取的相应LLR值中减去所选择的校验节点的校验节点消息来生成变量节点消息，对变量节点消息执行校验节点处理，计算LLR 通过将变量节点消息添加到校验节点处理结果值来更新值，并将计算出的LLR值传递给LLR存储器。

17. 发明申请

US20080144752A1 CHANNEL ENVIRONMENT-ADAPTED MMSE RECEPTION METHOD AND APPARATUS USING MULTIPLE RECEIVE ANTENNAS 有权
标题翻译：频道环境适应MMSE接收方法和使用多种接收天线的设备
公开(公告)号：US20080144752A1
公开(公告)日：2008-06-19
申请号：US11945636
申请日：2007-11-27
申请人： Huigiang Zhou , Jong-Hun Rhee , Min-Goo Kim , Sung-Soo Kim
发明人： Huigiang Zhou , Jong-Hun Rhee , Min-Goo Kim , Sung-Soo Kim
IPC分类号： H04B7/10 , H04L1/02
CPC分类号： H04B7/0854 , H04L27/2647
摘要： Method and Apparatus for controlling combining coefficients of multiple receive antennas according to the channel conditions in a mobile communication system, to improve data restoration performance. A mobile station detects preamble, pilot and data from a signal received from a base station via the multiple receive antennas, measures a channel correlation from the detected preamble, classifies time-domain/frequency-domain intervals having a channel correlation exceeding a predetermined threshold as calculation regions, and calculates MMSE coefficients for the calculation regions. In this way, the mobile station finds the optimal coefficients for combining the signal received via the multiple receive antennas, thereby optimizing the reception performance.
摘要翻译：根据移动通信系统中的信道条件控制多个接收天线的组合系数的方法和装置，以提高数据恢复性能。移动站通过多个接收天线从基站接收到的信号中检测前导码，导频和数据，根据检测到的前导码测量信道相关性，将具有超过预定阈值的信道相关性的时域/频域间隔分类为计算区域，并计算计算区域的MMSE系数。以这种方式，移动台找到用于组合经由多个接收天线接收的信号的最佳系数，从而优化接收性能。

18. 发明授权

US07327714B2 Apparatus and method for detecting a time division multiplexing frame in a mobile communication system 有权
标题翻译：用于在移动通信系统中检测时分多路复用帧的装置和方法
公开(公告)号：US07327714B2
公开(公告)日：2008-02-05
申请号：US11142353
申请日：2005-06-02
申请人： Hee-Jin Roh , Min-Goo Kim
发明人： Hee-Jin Roh , Min-Goo Kim
IPC分类号： H04B7/212
CPC分类号： H04L1/0054 , H04L1/0061 , H04L1/0068 , H04L1/0072 , H04L1/20 , H04L1/201
摘要： An apparatus and a method are provided for improving reception reliability for control channels by detecting time division multiple (TDM) frames transmitted through the control channels in a TDM mobile communication system. The apparatus and method include receiving the frame through the forward control channel and performing a cyclic redundancy checking (CRC) with respect to the frame, thereby outputting a first error detection bit, measuring reception power for the frame, calculating a first path metric when decoding a channel of the frame, estimating a second path metric by using the first path metric and the reception power, and outputting a second error detection bit by comparing the second path metric with a predetermined threshold value, and creating and outputting a frame quality bit for detecting validity of the frame based on the first and second error detection bits.
摘要翻译：提供了一种通过检测通过TDM移动通信系统中的控制信道发送的时分复用（TDM）帧来提高控制信道的接收可靠性的装置和方法。该装置和方法包括：通过前向控制信道接收帧，对该帧执行循环冗余校验（CRC），从而输出测量该帧的接收功率的第一错误检测比特，当解码时计算第一路径量度帧的信道，通过使用第一路径度量和接收功率来估计第二路径量度，并且通过将第二路径度量与预定阈值进行比较来输出第二错误检测比特，并且创建并输出帧质量比特，基于第一和第二错误检测位来检测帧的有效性。

19. 发明授权

US07302620B2 Interleaving.deinterleaving device and method for communication system 有权
标题翻译：交错设备和通信系统的方法
公开(公告)号：US07302620B2
公开(公告)日：2007-11-27
申请号：US10975661
申请日：2004-10-28
申请人： Min-Goo Kim
发明人： Min-Goo Kim
IPC分类号： G06F11/00
CPC分类号： H03M13/2789 , H03M13/2703 , H03M13/275 , H03M13/2764
摘要： A device for sequentially storing input bit symbols of a given interleaver size N in a memory at an address from 0 to N−1 and reading the stored bit symbols from the memory. The device comprises a look-up table for providing a first variable m and a second variable J satisfying the equation N=2m×J; and an address generator for generating a read address depending on the first and second variables m and J provided from the look-up table. The read address is determined by 2m(K mod J)+BROm(K/J), where K (0≦K≦(N−1)) denotes a reading sequence, BROm(y) is the bit-reversed m-bit value of y and / is a function in which a quotient of K divided by d is obtained, the quotient being an integer.
摘要翻译：一种用于在0至N-1的地址处将存储器中的给定交织器大小N的输入比特符号顺序存储并从存储器读取存储的比特符号的装置。该装置包括用于提供第一变量m的查找表和满足方程式N = 2×XJ的第二变量J; 以及用于根据从查找表提供的第一和第二变量m和J生成读取地址的地址发生器。读取地址由2 K（K mod J）+ BRO m（K / J）确定，其中K（0≤K≤=（N-1））表示读取序列，BROY（y）是y的位反转m比特值，和/是其中K除以d的商被获得的函数，商是整数。

20. 发明申请

US20070135125A1 Apparatus and method for hard handover in a wireless communication system 有权
标题翻译：无线通信系统中硬切换的装置和方法
公开(公告)号：US20070135125A1
公开(公告)日：2007-06-14
申请号：US11636456
申请日：2006-12-11
申请人： Min-Goo Kim , Young-Mo Gu , Sung-Soo Kim , Byung-Sik Kim
发明人： Min-Goo Kim , Young-Mo Gu , Sung-Soo Kim , Byung-Sik Kim
IPC分类号： H04Q7/20
CPC分类号： H04W36/30 , H04B1/7105 , H04B2201/70702
摘要： Provided is a hard handover method in a wireless communication system. The hard handover method includes checking a signal-to-noise ratio (SNR) of a signal received from each of at least one neighboring base station (BS) while in communication with a serving BS, and canceling interference if the SNR of the signal received from each of the at least one neighboring BSs satisfies a select condition; sending a handover request to the serving BS, if a difference between a SNR of the interference-canceled signal and a SNR of the interference signal reaches a handover request threshold; and upon receipt of a handover approval from the serving BS, releasing a communication channel to the serving BS, and connecting a call to a BS that provides an interference signal whose SNR has reached the threshold.
摘要翻译：提供了一种在无线通信系统中的硬切换方法。硬切换方法包括在与服务BS进行通信时检查从至少一个相邻基站（BS）中的每一个接收的信号的信噪比（SNR），以及如果接收到的信号的SNR被消除则消除干扰从所述至少一个相邻BS中的每一个满足选择条件; 如果所述干扰消除信号的SNR与所述干扰信号的SNR之间的差达到切换请求阈值，则向所述服务BS发送切换请求; 并且在从服务BS接收到切换批准时，向服务BS发布通信信道，并且将呼叫连接到提供SNR达到阈值的干扰信号的BS。

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