公开(公告)号：US06950461B2

公开(公告)日：2005-09-27

申请号：US09961839

申请日：2001-09-24

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H04L1/00 ,  H04L27/26 ,  H04B1/38 ,  H04L5/16

CPC classification number: H04L1/0041 ,  H03M13/1148 ,  H04L1/0057 ,  H04L27/2602

Abstract: A modem includes an LDPC encoder which utilizes a deterministic H-matrix, optionally via a generation matrix, to generate redundant parity bits for a bit block. Ones are placed into the H-matrix in a completely diagonal manner with diagonals subdivided into sets of diagonals. The first diagonal in each set i begins with coordinates H(1,k), where k=(1+(i*Mj)). The remaining diagonals in the sets are offset from the first diagonals so that the column distances between any two pairs of diagonals is unique. In another embodiment, the H-matrix is determined by assigning “1s” in a first column, and then assigning “1s” of subsequent columns deterministically by causing each “1” in a previous ancestor column to generate a “1” in the next descendant column based on the rule that a descendant is placed one position below an ancestor except where rectangles would be generated. Interrupted descending diagonals are generated.

Abstract translation: 调制解调器包括LDPC编码器，其可选地通过生成矩阵来利用确定性H矩阵来产生位块的冗余奇偶校验位。 将对象以完全对角线方式放置在H矩阵中，将对角线细分成一组对角线。 每组i中的第一个对角线以坐标H（1，k）开始，其中k =（1+（i * M））。 组中的剩余对角线与第一对角线偏移，使得任何两对对角线之间的列距离是唯一的。 在另一个实施例中，通过在第一列中分配“1”来确定H矩阵，然后通过使先前的祖先列中的每个“1”在下一个子序列中产生“1”来确定地分配后续列的“1” 后代列基于规则，后代被放置在祖先以下的一个位置，除了生成矩形。 产生中断下降的对角线。

公开(公告)号：US20050085249A1

公开(公告)日：2005-04-21

申请号：US10685615

申请日：2003-10-16

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H04B1/00 ,  H04B7/00 ,  H04B7/005 ,  H04B15/00 ,  H04L27/26

CPC classification number: H04L27/2657 ,  H04L27/2679

Abstract: Apparatus, methods and systems for frequency offset compensation in multipoint-to-point orthogonal frequency division multiplexing (OFDM) systems are provided. In the hub, frequency offset estimates are made in the frequency domain for each group of carriers of the OFDM system. The hub then transmits indications (parameters) of the frequency offset for each group of carriers to the nodes. Frequency offset compensation is then accomplished in each node, preferably in the time domain.

Abstract translation: 提供了多点对点正交频分复用（OFDM）系统中用于频偏补偿的装置，方法和系统。 在集线器中，在OFDM系统的每个载波组的频域中进行频偏估计。 然后，中枢向每个节点发送每组载波的频率偏移的指示（参数）。 然后，在每个节点中，优选在时域中实现频偏补偿。

公开(公告)号：US06862552B2

公开(公告)日：2005-03-01

申请号：US10342519

申请日：2003-01-15

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H04L25/06 ,  H04L27/26 ,  G06F15/04

CPC classification number: H04L25/067 ,  H04L27/2647

Abstract: An easily implementable soft decision decoding (SDD) metric is provided for telecommunications systems and apparatus. The SDD metric is based on weighted average distances or weighted minimum distances between scaled received signals and all reference signals related to the corresponding binary symbol. An important property of the SDD metric of the invention is that the distance weight is completely defined by the received signal scaling factor which is readily available as a result of conventional frequency domain equalization procedures. The invention is particularly advantageous in wireless systems having variable parameters such as wireless OFDM systems with selective fading.

Abstract translation: 为电信系统和设备提供了一种易于实现的软判决解码（SDD）度量。 SDD度量基于缩放的接收信号与与相应二进制符号相关的所有参考信号之间的加权平均距离或加权最小距离。 本发明的SDD度量的一个重要特性是距离权重由接收到的信号缩放因子完全定义，该缩放因子可以作为常规频域均衡过程的结果容易获得。 本发明在具有可变参数的无线系统中是特别有利的，例如具有选择性衰落的无线OFDM系统。

公开(公告)号：US5822371A

公开(公告)日：1998-10-13

申请号：US801066

申请日：1997-02-14

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H03M7/00 ,  H04B14/02 ,  H04B14/04 ,  H04L25/49 ,  H04L27/00 ,  H04L27/02 ,  H04L27/34

CPC classification number: H04L27/3411 ,  H04B14/023 ,  H04B14/048 ,  H04L25/4927

Abstract: A pulse amplitude modulated (PAM) mapper includes a constellation matrix memory which stores indications of a plurality of different constellations, wherein at least one of the different stored constellations is of different dimension than another of the stored constellations. The constellations are used individually or together to support a plurality of different modem data rates. In a preferred embodiment, in addition to the constellation matrix memory, the mapper includes a logic block, a constellation controller, a PAM code generation block, and an output register. The logic block receives incoming bits of information, groups the bits as a function of the desired or agreed upon bit rate as indicated by the constellation controller, and provides a plurality of each group of bits to the PAM code generation block, and one or more sign bits to the output register. The PAM code generation block uses the provided bits to choose at least one point from one of the constellations, and uses each chosen constellation point to generate a seven-bit PAM code (typically .mu.-law or A-law code value) word. Each seven-bit output is provided to the output register, and together with associated sign bits generates output bytes. Algorithms are provided for choosing multiple points from the 2D and higher dimensional constellations from provided groups of bits.

Abstract translation: 脉冲幅度调制（PAM）映射器包括存储多个不同星座的指示的星座矩阵存储器，其中不同存储的星座中的至少一个与所存储的星座中的另一个具有不同的维度。 星座单独或一起用于支持多种不同的调制解调器数据速率。 在优选实施例中，除了星座矩阵存储器之外，映射器包括逻辑块，星座控制器，PAM码生成块和输出寄存器。 逻辑块接收输入的信息比特，将比特分组为由星座控制器指示的所需或约定的比特率的函数，并且向PAM码生成块提供多个每组比特，并且提供一个或多个 符号位到输出寄存器。 PAM代码生成块使用提供的位从一个星座中选择至少一个点，并使用每个选择的星座点来生成七位PAM码（通常为μ-或A律代码值）字。 每个七位输出都提供给输出寄存器，与相关的符号位一起生成输出字节。 提供算法用于从提供的位组的2D和更高维度星座中选择多个点。

公开(公告)号：US07308049B2

公开(公告)日：2007-12-11

申请号：US10772962

申请日：2004-02-05

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H03D3/22

CPC classification number: H04L27/2332

Abstract: Methods, apparatus and systems for implementing an algorithm for N-symbol noncoherent processing of M-ary DPSK signals in a pilotless, wireless system is provided. The algorithm is carried out with (N−1) recurrent steps (iterations) plus a decision step. Each iterative step includes simple trigonometrical transformation of quadrature components of the current symbol and summation of the transforms with results of the previous step. A final N-symbol decision regarding the current transmitted symbol corresponds to the vector of maximum length, calculated after the (N−1)-th step of the iterative procedure. The general algorithm is optionally implemented with one or more intersymbol processors, one or more memory blocks for saving results of the intersymbol processors, and a decision block. In addition, shift registers for quadrature components of the received signal may be utilized.

Abstract translation: 提供了一种用于在无人驾驶无线系统中实现M-DY DPSK信号的N符号非相干处理算法的方法，装置和系统。 该算法用（N-1）循环步骤（迭代）加上决策步骤进行。 每个迭代步骤包括当前符号的正交分量的简单三角变换和变换的求和与前一步骤的结果。 关于当前发送符号的最终N符号判定对应于在迭代过程的第（N-1）步之后计算的最大长度向量。 一般算法可选地使用一个或多个符号间处理器，用于保存符号间处理器的结果的一个或多个存储器块以及判定块来实现。 此外，可以利用接收信号的正交分量的移位寄存器。

公开(公告)号：US07203459B2

公开(公告)日：2007-04-10

申请号：US10406776

申请日：2003-04-03

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H04B17/00

CPC classification number: H04L1/0003 ,  H04B17/26 ,  H04B17/336 ,  H04B17/382 ,  H04L1/0009 ,  H04L1/0021 ,  H04L1/0025 ,  H04L1/0045 ,  H04L1/208 ,  H04L5/0007 ,  H04L5/0046 ,  H04L27/2647

Abstract: Methods, apparatus, and systems for mode assignment and mode adaptation to channel conditions are provided which are based on estimations of real signal-to-noise ratios (SNR) for each frequency carrier bearing information during a data transmission session. The invention utilizes two principal procedures: signal-to-noise ratio (SNR) estimation, and a corresponding mode assignment. SNR estimation is obtained by an averaging of squared Euclidean distances between normalized received signals and reference signals corresponding to either current hard decisions from the output of a demodulator or soft decisions provided by a decoder, for each frequency carrier bearing random information. Using the SNR estimations, various algorithms for determining mode assignment are provided.

Abstract translation: 提供了用于模式分配和对信道条件的模式适配的方法，装置和系统，其基于在数据传输会话期间针对每个承载载波信息的实际信噪比（SNR）的估计。 本发明利用两个主要程序：信噪比（SNR）估计和对应的模式分配。 SNR估计是通过归一化的接收信号与对应于来自解调器的输出的当前硬判决的参考信号之间的平方欧几里德距离获得的，或者对于承载随机信息的每个频率载波，由解码器提供的软判决的平均。 使用SNR估计，提供用于确定模式分配的各种算法。

公开(公告)号：US06542551B1

公开(公告)日：2003-04-01

申请号：US09315475

申请日：1999-05-20

Applicant: Yuri Okunev ,  Vitaly Drucker ,  Qin Wang ,  Yuri Goldstein

Inventor： Yuri Okunev ,  Vitaly Drucker ,  Qin Wang ,  Yuri Goldstein

IPC: H04B1404

CPC classification number: H04L25/4927 ,  H04B14/048 ,  H04J3/125

Abstract: The receiver of a PCM modem utilizes the V.90 TRN1d training signal for detecting whether any of the six slots of the received signal may be subject to alternating robbed bit signaling (ARBS), and what the alternating robbed bit signaling pattern may be. This is accomplished by accumulating the received level over a plurality of frames for each slot and by comparing the received levels for each slot to an average level for that slot. If the difference between the received levels and the average levels exceeds a threshold, the slot is determined to be subject to ARBS. Where a slot is subject to ARBS, DIL sequence signals for frames of the alternating robbed bit signaling slot having LSB=0 and LSB=1 are accumulated separately (if available) in order to generate two translation tables (TRT0, TRT1) for that slot. Where the DIL sequence is found only in the frames having the alternating robbed bit signaling slot having LSB=0 or having LSB=1, only one translation table can be generated. Different algorithms are provided for designing a constellation for the alternating robbed bit signaling slot depending on (a) whether two translation tables were generated for the slot, (b) whether the frame-to-TRT correspondence is known, and (c) where only one translation table is generated, whether the translation table generated was TRT0 or TRT1.

Abstract translation: PCM调制解调器的接收机利用V.90 TRN1d训练信号来检测接收信号的六个时隙中的任一个是否可能经历交替的抢占位信令（ARBS），以及交替的抢占位信令模式可能是什么。 这是通过在每个时隙的多个帧上累积接收的电平并且通过将每个时隙的接收电平与该时隙的平均电平进行比较来实现的。 如果接收电平和平均电平之间的差异超过阈值，则确定该时隙被接受ARBS。 在时隙经受ARBS的情况下，具有LSB = 0和LSB = 1的交替抢占位信令时隙的帧的DIL序列信号被分别累积（如果可用），以便为该时隙产生两个转换表（TRT0，TRT1） 。 在仅具有LSB = 0或具有LSB = 1的交替抢夺位信令时隙的帧中找到DIL序列的情况下，只能生成一个转换表。 提供了不同的算法用于设计用于交替抢夺位信令时隙的星座，这取决于（a）是否为时隙生成了两个转换表，（b）帧到TRT对应是否已知，以及（c） 生成一个转换表，生成的转换表是否为TRT0或TRT1。

公开(公告)号：US06272171B1

公开(公告)日：2001-08-07

申请号：US09238302

申请日：1999-01-28

Applicant: Yuri Okunev ,  Vitaly Drucker ,  Qin Wang ,  Yuri Goldstein

Inventor： Yuri Okunev ,  Vitaly Drucker ,  Qin Wang ,  Yuri Goldstein

IPC: H04B138

CPC classification number: H04L25/4927 ,  H04J3/125

Abstract: Methods are provided for determining whether any slots of a modem frame are subject to robbed bit signaling (RBS), and whether the robbed bit signaling is &bgr;-codec robbed bit signaling. From an obtained DIL sequence, an ordered table of level values for each slot is generated. In determining whether any slots are RBS slots, distances between adjacent levels of the table for each slot are obtained and are compared to a “zero distance” threshold value in order to determine the number of distances which exceed the “zero distance” value. For each slot, the number of zero distances are compared to a threshold value, and if the number of zero distances exceeds the threshold value, the slot is declared to be a RBS slot. Zero distance thresholds for each slot are generated by finding a function of a maximum distance for that slot among the adjacent levels. In determining whether any RBS slots are &bgr;-codec slots, distances are found between corresponding levels of the ordered tables. If substantially more than half of the distances from one slot to the others are found to be greater than a zero distance threshold value, the slot is determined to be a &bgr;-codec slot.

Abstract translation: 提供了用于确定调制解调器帧的任何时隙是否遭受抢占比特信令（RBS）以及抢占比特信令是否为β-codec抢夺比特信令的方法。 从获得的DIL序列中，生成每个时隙的级别值的有序表。 在确定任何时隙是否是RBS时隙时，获得每个时隙的表的相邻电平之间的距离，并将其与“零距离”阈值进行比较，以便确定超过“零距离”值的距离数。 对于每个时隙，将零距离的数量与阈值进行比较，并且如果零距离的数量超过阈值，则该时隙被声明为RBS时隙。 通过找到相邻级别中该时隙的最大距离的函数来生成每个时隙的零距离阈值。 在确定任何RBS时隙是否为β编解码器插槽时，在有序表的相应级别之间找到距离。 如果发现从一个时隙到另一个时隙的距离的大致一半大于零距离阈值，那么该时隙被确定为β-codec时隙。

公开(公告)号：US5825823A

公开(公告)日：1998-10-20

申请号：US870684

申请日：1997-06-06

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H04L1/24 ,  H04L5/14 ,  H04L25/49

CPC classification number: H04L25/4927 ,  H04L1/241 ,  H04L1/242 ,  H04L5/1438

Abstract: A two-level or three-level probing signal is generated by a transmitter for transmission over a channel and for detection and analysis by a receiver. The two-level probing signal is a signal having a first PCM .mu.-law level over a first frame, and a second PCM .mu.-law level over a second frame. The two-level probing signal when combined with detection and analysis is generally sufficient for determining the presence and order of RB-signaling and PAD attenuation, and the extent of PAD attenuation may also be determined. The three-level probing signal is similar to the two-level probing signal but includes a third .mu.-law level over a third frame. A preferred two-level probing signal is a signal having a PCM .mu.-law level of .+-.975 for a first frame, and a signal having a PCM .mu.-law level of .+-.1023 for a second frame (or vice versa), although other sets of signals such as .+-.1087 and .+-.879 can be utilized. One preferred three-level probing signal is a signal having a PCM .mu.-law level of .+-.975 for a first frame, and a signal having a PCM .mu.-law level of .+-.1023 for a second frame, and a signal having a PCM .mu.-law level of .+-.1151 for a third frame, although other sets of signals (e.g., 911, 943, and 1151; 943, 975 and 1151; 911, 975, and 1151) can be utilized. At the receiver, the received signals are compared to a set of predetermined threshold values, and based on those comparisons, decisions as to the presence and order of RB-signaling and PAD attenuation are made.

Abstract translation: 两级或三级探测信号由发射机产生，用于通过信道进行传输并由接收机进行检测和分析。 两级探测信号是在第一帧上具有第一PCMμ-law电平的信号，以及在第二帧上的第二PCMμ-level电平。 当与检测和分析结合时，两级探测信号通常足以确定RB信令和PAD衰减的存在和顺序，并且也可以确定PAD衰减的程度。 三电平探测信号类似于两电平探测信号，但是在第三帧上包括第三个mu-level电平。 优选的两电平探测信号是对于第一帧具有+/- 975的PCMμ-law电平的信号，以及对于第二帧具有+/- 10 3 3的PCMμ-level电平的信号（或反之亦然） ），尽管可以使用诸如+/- 1087和+/- 879的其它信号集合。 一个优选的三电平探测信号是对于第一帧具有+/- 975的PCMμ-law电平的信号，以及对于第二帧具有+/- 1033的PCMμ-law电平的信号，以及信号 尽管可以使用其他信号集（例如911,943和1151; 943,975和1151; 911,975和1151），但是对于第三帧具有+/- 1/1151的PCM mu-level电平。 在接收机处，将接收的信号与一组预定阈值进行比较，并且基于这些比较，作出关于RB信令和PAD衰减的存在和顺序的决定。

公开(公告)号：US20050026565A1

公开(公告)日：2005-02-03

申请号：US10638980

申请日：2003-08-12

Applicant: Yuri Goldstein ,  Yuri Okunev

Inventor： Yuri Goldstein ,  Yuri Okunev

IPC: H04L27/00 ,  H04L27/26 ,  H04L27/38 ,  H04Q7/20

CPC classification number: H04L27/3872 ,  H04L27/2657 ,  H04L27/2676 ,  H04L2027/003

Abstract: Systems, methods and apparatus are provided for equalizing a received multicarrier wireless telecommunications data signal. The wireless signal includes data without accompanying pilot signals, and equalization is accomplished by extracting information from the data, by processing the information in order to obtain equalization indications, and by equalizing the multicarrier wireless telecommunications data signal by modifying indications of the wireless telecommunications data signal using the equalization indications.

Abstract translation: 提供了系统，方法和装置，用于均衡所接收的多载波无线电信数据信号。 无线信号包括没有伴随的导频信号的数据，并且通过从数据中提取信息，通过处理该信息以获得均衡指示，并且通过修改无线电信数据信号的指示来均衡多载波无线电信数据信号来实现均衡 使用均衡指示。