专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20050276317A1 Apparatus and method for controlling transmission mode in a MIMO mobile communication system 有权
标题翻译：用于控制MIMO移动通信系统中的传输模式的装置和方法
公开(公告)号：US20050276317A1
公开(公告)日：2005-12-15
申请号：US11152456
申请日：2005-06-14
申请人： Hong-Sil Jeong , Chan-Byoung Chae , Jae-Yoel Kim
发明人： Hong-Sil Jeong , Chan-Byoung Chae , Jae-Yoel Kim
IPC分类号： H04J99/00 , H04B7/04 , H04B7/06 , H04B7/26 , H04L1/00 , H04L1/06 , H04L1/16 , H04W16/28 , H04W28/04 , H04W28/18 , H04L27/06
CPC分类号： H04L1/0021 , H04B7/0632 , H04B7/0689 , H04B17/24 , H04L1/0003 , H04L1/0026 , H04L1/0643
摘要： An apparatus and method for controlling a transmission mode in a MIMO mobile communication system are provided. In a receiver in the MIMO mobile communication system, an error checker checks errors in received data and outputting an error check result. A feedback portion adaptively changes a threshold associated with a channel state according to the error check result, and determines a transmission mode by comparing the changed threshold with a measured CQI, and feeds back transmission mode information to a transmitter.
摘要翻译：提供了一种用于控制MIMO移动通信系统中的传输模式的装置和方法。在MIMO移动通信系统的接收机中，错误检查器检查接收到的数据中的错误并输出错误检查结果。反馈部分根据错误检查结果自适应地改变与信道状态相关联的阈值，并且通过将改变的阈值与测量的CQI进行比较来确定发送模式，并将发送模式信息反馈到发送器。

52. 发明申请

US20050238110A1 Apparatus and method for reducing peak-to-average power ratio in orthogonal frequency division multiplexing communication system 有权
标题翻译：在正交频分复用通信系统中降低峰均功率比的装置和方法
公开(公告)号：US20050238110A1
公开(公告)日：2005-10-27
申请号：US11111217
申请日：2005-04-21
申请人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
发明人： Sung-Ryul Yun , Sung-Eun Park , Jae-Yoel Kim
IPC分类号： H04J11/00 , H04K1/10 , H04L27/26
CPC分类号： H04L27/2618
摘要： Provided is a method for reducing a PAPR (Peak-to-Average Power Ratio) of a transmit signal in a broadband wireless communication. The method includes the steps of: assigning information signals to remaining tones except L reserved tones that are previously appointed among N tones, and performing an IFFT operation on the tones; detecting peaks that are greater than a predefined reference value from the IFFT-ed signal; generating signals for removing the detected peaks using P-waveform having impulse characteristic, the P-waveform being produced using the L reserved tones; generating a clipping signal by accumulating the signals; and simultaneously removing the peaks by adding the IFFT-ed signal and the clipping signal.
摘要翻译：提供了一种用于降低宽带无线通信中的发送信号的PAPR（峰均功率比）的方法。该方法包括以下步骤：将信息信号分配给除N个音调之前预先指定的L个保留音之外的剩余音调，并对该音调执行IFFT操作; 检测大于来自IFFT-ed信号的预定参考值的峰值; 产生用于使用具有脉冲特性的P波形去除检测到的峰值的信号，该P波形使用L个保留音产生; 通过累积信号产生限幅信号; 并通过加入IFFT-ed信号和限幅信号同时去除峰。

53. 发明授权

US06928066B1 RSMA control device and method for mobile communication system 有权
标题翻译： RSMA控制装置及移动通信系统方法
公开(公告)号：US06928066B1
公开(公告)日：2005-08-09
申请号：US09436902
申请日：1999-11-09
申请人： Hi-Chan Moon , Jae-Min Ahn , Jae-Yoel Kim , Hee-Won Kang
发明人： Hi-Chan Moon , Jae-Min Ahn , Jae-Yoel Kim , Hee-Won Kang
IPC分类号： H04B7/216 , H04J11/00 , H04W8/26 , H04W28/26 , H04W52/00 , H04W52/02 , H04W52/04 , H04W52/14 , H04W52/44 , H04W72/04 , H04W74/00
CPC分类号： H04W74/002 , H04J13/0048 , H04W8/26 , H04W28/26 , H04W52/0235 , H04W52/04 , H04W52/146 , H04W52/44 , H04W72/04 , H04W74/004 , H04W74/0833 , Y02D70/00
摘要： An access request message transmission device for a mobile station in a CDMA communication system employing RSMA in which a base station assigns a reverse common channel in response to an access request message from the mobile station, and the mobile station transmits a message to the base station over the assigned reverse common channel. The access request message transmission device includes a hash ID generator for generating a multi-bit hash ID for exclusively using the reverse common channel; a traffic information generator for generating multi-bit traffic information representing traffic information on the reverse common channel; and an access channel transmitter for generating the access request message using the hash ID and the traffic information, and transmitting the generated access request message to the base station over an access channel.
摘要翻译：一种在采用RSMA的CDMA通信系统中的移动站的接入请求消息发送装置，其中基站响应于来自移动台的接入请求消息分配反向公共信道，并且移动台向基站发送消息通过分配的反向公共通道。访问请求消息发送装置包括散列ID生成器，用于生成专用于反向公共信道的多位散列ID; 用于产生表示所述反向公共信道上的交通信息的多比特业务信息的交通信息发生器; 以及接入信道发射机，用于使用所述散列ID和所述业务信息来生成所述接入请求消息，并且通过接入信道将所生成的接入请求消息发送到所述基站。

54. 发明授权

US06882636B1 Apparatus and method for encoding/decoding transport format combination indicator in CDMA mobile communication system 有权
标题翻译： CDMA移动通信系统中传输格式组合指示符的编码/解码装置及方法
公开(公告)号：US06882636B1
公开(公告)日：2005-04-19
申请号：US09611069
申请日：2000-07-06
申请人： Jae-Yoel Kim , Hee-Won Kang
发明人： Jae-Yoel Kim , Hee-Won Kang
IPC分类号： H03M13/00 , H04B1/707 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/12 , H04L1/00 , H04L9/06 , H04Q7/38 , H04B7/216
CPC分类号： H04L1/0072 , H03M13/136 , H03M13/47 , H03M13/618 , H04B1/707 , H04B2201/70705 , H04J13/0048 , H04J13/12 , H04L1/0025 , H04L1/0028 , H04L1/0039 , H04L1/0041 , H04L1/0045 , H04L1/0057
摘要： An apparatus and method for encoding/decoding a transport format combination indicator (TFCI) in a CDMA mobile communication system. In the TFCI encoding apparatus, a one-bit generator generates a sequence having the same symbols. A basis orthogonal sequence generator generates a plurality of basis orthogonal sequences. A basis mask sequence generator generates a plurality of basis mask sequences. An operation unit receives TFCI bits that are divided into a first information part representing biorthogonal sequence conversion, a second information part representing orthogonal sequence conversion, and a third information part representing mask sequence conversion and combines an orthogonal sequence selected from the basis orthogonal sequence based on the second information, a biorthogonal sequence obtained by combining the selected orthogonal sequence with the same symbols selected based on the first information part, and a mask sequence selected based on the biorthogonal sequence and the third information part, thereby generating a TFCI sequence.
摘要翻译：一种用于在CDMA移动通信系统中对传输格式组合指示符（TFCI）进行编码/解码的装置和方法。在TFCI编码装置中，1比特发生器产生具有相同符号的序列。基准正交序列生成器生成多个基本正交序列。基屏蔽序列发生器产生多个基本掩码序列。操作单元接收被分成表示双正交序列转换的第一信息部分，表示正交序列转换的第二信息部分和表示掩码序列转换的第三信息部分的TFCI比特，并且将基于正交序列的正交序列基于第二信息，通过将所选择的正交序列与基于第一信息部分选择的相同符号组合而获得的双正交序列，以及基于双正交序列和第三信息部分选择的掩码序列，从而生成TFCI序列。

55. 发明申请

US20050078765A1 Method and apparatus for space-time coding using lifting low density parity check codes in a wireless communication system 有权
标题翻译：在无线通信系统中使用提升低密度奇偶校验码进行时空编码的方法和装置
公开(公告)号：US20050078765A1
公开(公告)日：2005-04-14
申请号：US10964275
申请日：2004-10-13
申请人： Hong-Sil Jeong , Jae-Yoel Kim , Chan-Byoung Chae
发明人： Hong-Sil Jeong , Jae-Yoel Kim , Chan-Byoung Chae
IPC分类号： H04B7/02 , H04J99/00 , H04L1/00 , H04L1/06
CPC分类号： H04L1/0057 , H04L1/0071 , H04L1/0656
摘要： A mobile communication system and method for transmitting signals through a plurality of transmission antennas by space-time coding the signals. The signals are transmitted using a low density parity check code. A lifting low density parity check matrix is formed by expanding values of elements in a low density parity check matrix with a sub-matrix corresponding to a number of the transmission antennas. The signals to be transmitted are coded using the lifting low density parity check matrix. Thereafter, the coded signals are serial/parallel converted and transmitted through the transmission antennas.
摘要翻译：一种用于通过对信号进行空时编码来通过多个发送天线发送信号的移动通信系统和方法。使用低密度奇偶校验码传输信号。通过使用与多个发送天线对应的子矩阵在低密度奇偶校验矩阵中扩展元素的值来形成提升低密度奇偶校验矩阵。要发送的信号使用提升低密度奇偶校验矩阵进行编码。此后，编码信号被串行/并行转换并通过发送天线发送。

56. 发明申请

US20050050435A1 Apparatus and method for coding/decoding block low density parity check code in a mobile communication system 有权
标题翻译：在移动通信系统中对低密度奇偶校验码进行编码/解码的装置和方法
公开(公告)号：US20050050435A1
公开(公告)日：2005-03-03
申请号：US10926932
申请日：2004-08-26
申请人： Gyu-Bum Kyung , Hong-Sil Jeong , Jae-Yoel Kim , Sung-Eun Park , Kyeong-Cheol Yang , Se-Ho Myung
发明人： Gyu-Bum Kyung , Hong-Sil Jeong , Jae-Yoel Kim , Sung-Eun Park , Kyeong-Cheol Yang , Se-Ho Myung
IPC分类号： H04L1/00 , H03M13/11 , H03M13/00 , G06F11/00
CPC分类号： H03M13/1105 , H03M13/1102 , H03M13/1151 , H03M13/1162 , H03M13/1171 , H03M13/118 , H03M13/1185 , H03M13/1188 , H03M13/1194
摘要： A method for generating a parity check matrix of a block LDPC code is disclosed. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.
摘要翻译：公开了一种用于生成块LDPC码的奇偶校验矩阵的方法。奇偶校验矩阵包括对应于信息字的信息部分和对应于奇偶校验的第一奇偶校验部分和第二奇偶校验部分。该方法包括基于在使用块LDPC码对信息字进行编码时应用的编码率和码字长度来确定奇偶校验矩阵的大小; 将具有所确定的大小的奇偶校验矩阵除以预定数量的块; 将块分类为对应于信息部分的块，对应于第一奇偶校验部分的块，以及对应于第二奇偶校验部分的块; 从分类为第一奇偶校验部分的块中将预定块中的置换矩阵排列在预定块中的整个下三角形形式中的单位矩阵，从被分类为第二奇偶校验部分的块中排列; 以及将排列矩阵排列在分组为信息部分的块中，使得最小周期长度最大化，权重值在块LDPC码的因子图上是不规则的。

57. 发明授权

US06768728B1 Device and method for exchanging frame messages of different lengths in CDMA communication system 有权
标题翻译：用于在CDMA通信系统中交换不同长度的帧消息的装置和方法
公开(公告)号：US06768728B1
公开(公告)日：2004-07-27
申请号：US09268242
申请日：1999-03-15
申请人： Young-Ky Kim , Jae-Min Ahn , Soon-Young Yoon , Hee-Won Kang , Hyun-Suk Lee , Jin-Soo Park , Jae-Yoel Kim
发明人： Young-Ky Kim , Jae-Min Ahn , Soon-Young Yoon , Hee-Won Kang , Hyun-Suk Lee , Jin-Soo Park , Jae-Yoel Kim
IPC分类号： H04B7216
CPC分类号： H04J13/0003 , H04B7/2628 , H04J13/00 , H04J13/0022 , H04J13/0048
摘要： In a transmission device and method for a CDMA communication system, when a shorter frame message is generated during transmission of a longer frame message, the transmission of the longer frame message is interrupted, whereupon the shorter frame message is immediately transmitted in place of a portion of the longer frame message. In one embodiment, after the longer frame message is interrupted and the shorter frame message is transmitted, only the tail portion of the longer frame message is transmitted thereafter. That is, the replaced portion of the longer frame message is not transmitted following the shorter frame message transmission. In an alternative embodiment, following the shorter frame message transmission, the remainder of the longer frame message, from the point of interruption, is transmitted in its entirety. In the latter case, the longer frame message is delayed by the length of the shorter frame message.
摘要翻译：在用于CDMA通信系统的传输设备和方法中，当在较长帧消息的传输期间产生较短的帧消息时，较长帧消息的传输被中断，因此较短的帧消息被立即发送，代替部分的较长帧消息。在一个实施例中，在更长的帧消息被中断并且发送较短的帧消息之后，仅在其后发送较长帧消息的尾部。也就是说，更短帧消息的更换部分在更短的帧消息传输之后不被发送。在替代实施例中，在更短的帧消息传输之后，从中断点开始，更长的帧消息的其余部分被全部传输。在后一种情况下，较长帧消息被延迟较短帧消息的长度。

58. 发明授权

US06512753B1 Device and method for spreading channels in mobile communication system 失效
标题翻译：用于在移动通信系统中传播信道的装置和方法
公开(公告)号：US06512753B1
公开(公告)日：2003-01-28
申请号：US09473766
申请日：1999-12-29
申请人： Jae-Yoel Kim , Jae-Min Ahn , Hoe-Won Kang , Seung-Joo Maeng
发明人： Jae-Yoel Kim , Jae-Min Ahn , Hoe-Won Kang , Seung-Joo Maeng
IPC分类号： H04B7216
CPC分类号： H04J13/102 , H04B7/264 , H04B2201/70703
摘要： Disclosed is a channel spreading device for a base station device in a CMDA communication system for spreading input symbols using a first quasi-orthogonal code having a first length or channel spreading the input symbols using a second quasi-orthogonal code having a second length which is a multiple of the first length. The device comprises a spreading code generator for generating the second quasi-orthogonal code; a channel spreader for providing a plurality of durations by dividing a duration of the second quasi-orthogonal code by said multiple of the length of the first quasi-orthogonal code, and spreading channel coded symbols with the quasi-orthogonal codes divided to have a length corresponding to the divided durations so as to spread the symbols identical in number to said multiple of the first quasi-orthogonal code duration at the duration of the second quasi-orthogonal; and a PN spreader for spreading the channel spread signal with a PN code.
摘要翻译：公开了一种用于CMDA通信系统中的基站装置的信道扩展装置，用于使用具有第一长度或信道的第一准正交码扩展输入符号，该第一准正交码具有使用第二长度的第二准正交码扩展输入符号，第二准正交码是第二长度，第一个长度的倍数。该装置包括用于产生第二准正交码的扩展码发生器; 通道扩展器，用于通过将所述第二准正交码的持续时间除以所述第一准正交码的长度的所述倍数来提供多个持续时间，以及扩展信道编码符号与准正交码被划分为具有长度对应于划分的持续时间，以便在第二准正交的持续时间内将与数字相同的符号扩展到第一准正交码持续时间的所述倍数; 以及用于使用PN码扩展信道扩展信号的PN扩展器。

59. 发明授权

US08321745B2 Apparatus and method for channel encoding and decoding in communication system using low-density parity-check codes 有权
标题翻译：使用低密度奇偶校验码的通信系统中信道编码和解码的装置和方法
公开(公告)号：US08321745B2
公开(公告)日：2012-11-27
申请号：US12396960
申请日：2009-03-03
申请人： Seho Myung , Hwan-Joon Kwon , Jae-Yoel Kim , Yeon-Ju Lim , Sung-Ryul Yun , Hak-Ju Lee , Hong-Sii Jeong
发明人： Seho Myung , Hwan-Joon Kwon , Jae-Yoel Kim , Yeon-Ju Lim , Sung-Ryul Yun , Hak-Ju Lee , Hong-Sii Jeong
IPC分类号： G06F11/00
CPC分类号： H03M13/1185 , H03M13/1105 , H03M13/618 , H03M13/6362 , H03M13/6393
摘要： An apparatus and a method for channel encoding/decoding in a communication system are provided. The apparatus and the method generate LDPC-encoded blocks with various lengths from an LDPC code with fixed length in a communication system using a Low-Density Parity-Check (LDPC) code. The apparatus and the method perform shortening using a predetermined number of shortened bits and perform LDPC encoding. The apparatus and the method apply predetermined rules according to the predetermined number of shortened bits and determine the number of bits to be punctured, and perform puncturing based on the determined number of punctured bits.
摘要翻译：提供了一种用于通信系统中的信道编码/解码的装置和方法。该装置和方法在使用低密度奇偶校验（LDPC）码的通信系统中从具有固定长度的LDPC码生成具有各种长度的LDPC编码块。该装置和方法使用预定数量的缩短比特来执行缩短并执行LDPC编码。该装置和方法根据预定数量的缩短比特来应用预定规则，并确定要被删截的比特数，并且基于确定的穿孔比特数进行删截。

60. 发明授权

US08300714B2 Apparatus and method for reducing peak to average power ratio in an orthogonal frequency division multiplexing system 有权
标题翻译：在正交频分复用系统中降低峰均功率比的装置和方法
公开(公告)号：US08300714B2
公开(公告)日：2012-10-30
申请号：US12133108
申请日：2008-06-04
申请人： Sung-Ryul Yun , Jae-Yoel Kim , Hak-Ju Lee , Hong-Sil Jeong , Se-Ho Myung
发明人： Sung-Ryul Yun , Jae-Yoel Kim , Hak-Ju Lee , Hong-Sil Jeong , Se-Ho Myung
IPC分类号： H04K1/10
CPC分类号： H04L27/2618 , H04L5/0048
摘要： A method for reducing a Peak to Average Power Ratio (PAPR) using reserved tones in a transmission apparatus of an Orthogonal Frequency Division Multiplexing (OFDM) communication system is provided. The method includes detecting a subcarrier spacing interval and the number of spaced symbols based on a predetermined pilot pattern upon signal reception, and determining positions of shifted reserved tones obtained by shifting positions of reserved tones allocated to a predetermined symbol during the number of the spaced symbols at intervals of the spacing interval; determining an impulse waveform obtained by rotating a phase of a complex value of an impulse stored in a memory, using the determined positions of frequency-domain reserved tones of each symbol; calculating a subtrahend for a PAPR of an output signal using the phase-rotated impulse waveform; and reducing a PAPR of an input signal by performing a gradient algorithm using the phase-rotated impulse waveform.
摘要翻译：提供了一种在正交频分复用（OFDM）通信系统的发送装置中使用保留音降低峰均功率比（PAPR）的方法。该方法包括在信号接收时基于预定导频模式检测子载波间隔间隔和间隔符号数，以及确定在间隔符号的数量期间通过移位分配给预定符号的保留音调的位置而获得的移位保留音的位置间隔间隔的间隔; 使用确定的每个符号的频域保留音调的位置来确定通过旋转存储在存储器中的脉冲的复数值的相位而获得的脉冲波形; 使用相位旋转脉冲波形计算输出信号的PAPR的减数; 以及通过使用相位旋转的脉冲波形执行梯度算法来减小输入信号的PAPR。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式