公开(公告)号：US06999445B1

公开(公告)日：2006-02-14

申请号：US09979834

申请日：1999-05-27

申请人： Alexander Sergeevich Dmitriev ,  Sergey Olegovich Starkov ,  Maxim Evgenyevich Shirokov ,  Andrey Ivanovich Panas ,  Yong Li ,  Wen Tong ,  Rui R. Wang

发明人： Alexander Sergeevich Dmitriev ,  Sergey Olegovich Starkov ,  Maxim Evgenyevich Shirokov ,  Andrey Ivanovich Panas ,  Yong Li ,  Wen Tong ,  Rui R. Wang

IPC分类号： H04L27/00

CPC分类号： H04L27/001 ,  H04L5/02

摘要： A multiple access telecommunication system is provided, which makes use of chaotic signals. Each transmitter has a chaotic system, which has at least one strange attractor in its phase space, and each receiver has chaotic systems, which corresponds to those in the transmitters from which it may receive signals. Each pair of users is assigned a set of periodic unstable orbits from a strange attractor, which that pair of users may use for signalling. At the transmitter side, a multiplexer receives data from plurality of users. These data are multiplexed in time, to produce an asynchronous data stream. The data stream is then mapped to a sequence of chaotic signals, in accordance with the set of trajectories for each transmitter and receiver pair.

摘要翻译： 提供了一种利用混沌信号的多址电信系统。 每个发射机具有混沌系统，其相位空间中至少有一个奇怪的吸引子，每个接收机具有混沌系统，这些系统对应于发射机中可能接收信号的混沌系统。 每对用户被分配一组来自奇怪吸引子的周期性不稳定轨道，该对用户可以用于信令。 在发射机侧，多路复用器从多个用户接收数据。 这些数据在时间上被多路复用，以产生异步数据流。 然后根据每个发射机和接收机对的一组轨迹将数据流映射到一系列混沌信号。

公开(公告)号：US06625234B1

公开(公告)日：2003-09-23

申请号：US09359539

申请日：1999-07-22

申请人： Jian Cui ,  Bin Li ,  Wen Tong ,  Rui R. Wang

发明人： Jian Cui ,  Bin Li ,  Wen Tong ,  Rui R. Wang

IPC分类号： H04L2706

CPC分类号： H03M13/2957 ,  H03M13/2703 ,  H03M13/271 ,  H03M13/2735 ,  H03M13/2771 ,  H04J13/0022

摘要： The invention relates to methods and apparatus for Turbo Code interleavers for use with third generation code division multiple access (3G CDMA) data. The apparatus includes a memory for receiving and temporarily storing the data, a counter and a clock coupled to the memory and counter for synchronization. The apparatus also includes a table containing a addresses that are selected by the counter. A puncturing device coupled to the table discards addresses if they are greater than a frame size. A buffer is coupled to the memory and the clock. The memory is configured to retrieve data from the selected addresses which are not discarded and forward it to the buffer for output.

摘要翻译： 本发明涉及用于与第三代码分多址（3G CDMA）数据一起使用的Turbo码交织器的方法和装置。 该装置包括用于接收和临时存储数据的存储器，连接到存储器的计数器和时钟以及用于同步的计数器。 该装置还包括包含由计数器选择的地址的表。 耦合到表的打孔设备如果大于帧大小则丢弃地址。 缓冲器耦合到存储器和时钟。 存储器被配置为从未被丢弃的所选择的地址检索数据并将其转发到缓冲器以进行输出。

公开(公告)号：US06724719B1

公开(公告)日：2004-04-20

申请号：US09502050

申请日：2000-02-11

申请人： Wen Tong ,  Rui R. Wang

发明人： Wen Tong ,  Rui R. Wang

IPC分类号： H04J1100

CPC分类号： H04W52/343 ,  H04W52/346 ,  H04W72/08

摘要： A plurality of data channels provide respective data rates and maximum error rates from a mobile station to a base station of a CDMA system; a pilot channel facilitates recovery of the data channels. For each data channel there is determined a channel energy to noise ratio (ENR) and a required pilot channel ENR. A maximum one of the required pilot channel ENRs is selected as an ENR for transmission of the pilot channel. A relative gain, and hence transmit signal power, for each data channel is determined from the ENR determined for the data channel and the selected maximum ENR for transmission of the pilot channel, thereby minimizing the total transmitted signal power of the mobile station. The data channel signals are spread using orthogonal Walsh codes and are combined with their determined relative gains.

摘要翻译： 多个数据信道提供从CDMA系统的移动台到基站的相应数据速率和最大误码率; 导频信道便于恢复数据信道。 对于每个数据信道，确定信道能量噪声比（ENR）和所需的导频信道ENR。 选择所需导频信道ENR中的最大一个作为用于传输导频信道的ENR。 从针对数据信道确定的ENR和用于传输导频信道的所选择的最大ENR确定每个数据信道的相对增益，并因此传输信号功率，从而最小化移动台的总发射信号功率。 数据信道信号使用正交沃尔什码进行扩展，并与其确定的相对增益相结合。

公开(公告)号：US06427214B1

公开(公告)日：2002-07-30

申请号：US09409317

申请日：1999-09-28

申请人： Bin Li ,  Wen Tong ,  Jian Cui ,  Rui R. Wang

发明人： Bin Li ,  Wen Tong ,  Jian Cui ,  Rui R. Wang

IPC分类号： H03M1327

CPC分类号： H03M13/2957 ,  H03M13/271 ,  H03M13/2735 ,  H03M13/2742 ,  H03M13/2771 ,  H03M13/6362

摘要： Construction of a Turbo code interleaver for blocks of any size is facilitated by partitioning the block into co-sets of predetermined size, permuting each co-set with an interleaver whose parameters are selected and optimized for the predetermined size, and recombining the elements of the permuted co-sets according to a predetermined order. Partitioning of the block into co-sets is accomplished by choosing a value n for the number of co-set, and assigning to each co-set those positions of the block having a common value for modulo-n of the block size. The permuted output may be punctured to maintain a desired ratio.

摘要翻译： 通过将块划分为预定大小的协同集合来促进对任何大小的块的Turbo码交织器的构造，将交织器置换为与预定大小相关的参数被选择和优化的交织器，并且将 根据预定顺序排列组合。 通过为共同组合的数量选择值n，并且为每个组合赋予具有块大小的模n的公共值的块的这些位置来实现块到组合的分割。 可以对置换的输出进行穿孔以保持期望的比率。

公开(公告)号：US06311070B1

公开(公告)日：2001-10-30

申请号：US09273411

申请日：1999-03-22

申请人： Wen Tong ,  Rui R. Wang

发明人： Wen Tong ,  Rui R. Wang

IPC分类号： H04B700

CPC分类号： H04W52/367 ,  H04W52/362

摘要： The invention provides a system and method for controlling transmission power of a mobile unit in a wireless communication system which minimizes transmission power overshoot caused by counteracting the effects of deep fading. The power control bits are received by the mobile unit then examined on an individual basis and also as a block of bits. Initially, each time a request to increase power is received the mobile unit increases the transmission power by 1 dB. When the mobile unit determines that a predetermined number of bits in a block each indicates a request to increase power is received the mobile unit increases the transmission power by 2 dB. After the block of increase requests, if the mobile receives a request to decrease the transmission power it increases the transmission power by 2 dB, then decreases the transmission power for the next two power control periods by 3 dB each.

摘要翻译： 本发明提供一种用于控制无线通信系统中的移动单元的发送功率的系统和方法，其最小化通过抵消深衰落的影响而导致的发送功率过冲。 功率控制位由移动单元接收，然后在单独的基础上检测并且还作为位块。 最初，每当接收到增加功率的请求时，移动单元将发射功率提高1dB。 当移动单元确定块中的预定数量的比特指示增加功率的请求被接收时，移动单元将发射功率提高2dB。 在增加请求块之后，如果移动台接收到降低发射功率的请求，则将发射功率提高2dB，则将下两个功率控制周期的发射功率降低3dB。

公开(公告)号：US07843888B1

公开(公告)日：2010-11-30

申请号：US10432216

申请日：2000-11-22

申请人： Rui R. Wang ,  Chao Wang, legal representative ,  Ming Jia ,  Yuri S. Shinakov ,  Alexandre M. Chloma ,  Mikhail G. Bakouline ,  Vitali B. Kreindeline

发明人： Rui R. Wang ,  Ming Jia ,  Yuri S. Shinakov ,  Alexandre M. Chloma ,  Mikhail G. Bakouline ,  Vitali B. Kreindeline

IPC分类号： H04W4/00 ,  H03M13/00

CPC分类号： H04L1/065 ,  H04L1/005 ,  H04L1/006 ,  H04L1/0066

摘要： Space-time diversity using a plurality of transmit antennas is provided with a turbo coding arrangement comprising two recursive systematic convolutional coders, to one of which input bits are supplied directly and to the other of which the information bits are supplied after interleaving of bit groups for respective symbol intervals. Symbols produced by the coders and comprising systematic and parity information are supplied to paths to the antennas alternately in successive symbol intervals to provide the space-time diversity. Arrangements are described for 2 and 4 antennas and for various convolutional codes, and an iterative decoder is also described.

摘要翻译： 使用多个发射天线的时空分集被提供有包括两个递归系统卷积编码器的turbo编码装置，其中一个输入比特被直接提供，并且另一个是在对比特组进行交织之后提供信息比特， 各自的符号间隔。 由编码器产生并且包括系统和奇偶信息的符号在连续符号间隔中被交替地提供给天线的路径以提供时空分集。 对于2和4天线以及各种卷积码描述了安排，并且还描述了迭代解码器。

公开(公告)号：US06442728B1

公开(公告)日：2002-08-27

申请号：US09263431

申请日：1999-03-04

申请人： Jian Cui ,  Bin Li ,  Weng Tong ,  Rui R. Wang

发明人： Jian Cui ,  Bin Li ,  Weng Tong ,  Rui R. Wang

IPC分类号： H03M1300

CPC分类号： H03M13/275 ,  H03M13/271

摘要： An interleaver receives incoming data frames of size N. The interleaver indexes the elements of the frame with an N1×N2 index array. The interleaver then effectively rearranges (permutes) the data by permuting the rows of the index array. The interleaver employs the equation I(j,k)=I(j,&agr;jk+&bgr;j)modP) to permute the columns (indexed by k) of each row (indexed by j). P is at least equal to N2, &bgr;j is a constant which may be different for each row, and each &agr;j is a relative prime number relative to P. After permuting, the interleaver outputs the data in a different order than received (e.g., receives sequentially row by row, outputs sequentially each column by column).

摘要翻译： 交织器接收大小为N的输入数据帧。交织器用N1xN2索引数组对帧的元素进行索引。 然后，交织器通过置换索引数组的行来有效地重新排列（排列）数据。 交织器使用等式I（j，k）= I（j，alphajk + betaj）modP）来排列每行（由j索引）的列（由k索引）。 P至少等于N2，betaj是对于每行可以是不同的常数，并且每个alphaj是相对于P的相对素数。在置换之后，交织器以与接收的不同的顺序输出数据（例如，接收 按顺序排列，逐列依次输出）。

公开(公告)号：US06961371B2

公开(公告)日：2005-11-01

申请号：US09853156

申请日：2001-05-11

申请人： Chao Wang ,  Wen Tong ,  Yuri S. Shinakov ,  Alexandre M. Chloma ,  Mikhail G. Bakouline ,  Vitali B. Kreindeline

发明人： Rui R. Wang

IPC分类号： H04B7/08 ,  H04L7/02 ,  H04L7/04 ,  H04L25/03 ,  H04L27/00 ,  H04Q11/04 ,  H03H7/30

CPC分类号： H04W56/00 ,  H04B7/0845 ,  H04L7/007 ,  H04L7/042 ,  H04L25/03006 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2027/0057 ,  H04Q11/0478 ,  H04W24/00 ,  H04W84/042 ,  H04W88/02

摘要： An impulse response matrix of a received signal in a TDMA communications system is approximated using a plurality of indirect variables of a linear complex vector. The indirect variables are used for synchronizing to the received signal and for tracking and frequency offset estimation during successive samples of the received signal, the samples being equalized in dependence upon the indirect variables. A demodulated signal is derived from the equalized received signal samples. Individual synchronization and tracking units, and a single equalizer, can be provided for a two-antenna receiver. Tracking errors can be used to adapt a parameter of the equalizer to reduce interference in the received signal.

摘要翻译： 使用多个线性复矢量的间接变量来近似TDMA通信系统中的接收信号的脉冲响应矩阵。 间接变量用于与接收到的信号同步，并且在接收信号的连续采样期间用于跟踪和频率偏移估计，样本根据间接变量而相等。 从均衡的接收信号样本导出解调信号。 可以为双天线接收机提供单独的同步和跟踪单元以及单个均衡器。 可以使用跟踪误差来调整均衡器的参数以减少接收信号中的干扰。