利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

292 条记录 (耗时 0.049 秒)

    Communication signal decoding and soft demapping methods and systems
    81.
    发明授权
    Communication signal decoding and soft demapping methods and systems 有权
    通信信号解码和软解映射方法和系统

    公开(公告)号：US08488722B2

    公开(公告)日：2013-07-16

    申请号：US13358786

    申请日：2012-01-26

    申请人： Ming Jia ,  Peiying Zhu ,  Wen Tong ,  Jianglei Ma

    发明人： Ming Jia ,  Peiying Zhu ,  Wen Tong ,  Jianglei Ma

    IPC分类号： H03M13/41

    CPC分类号： H04L25/02 ,  H04L25/03318 ,  H04L2025/03426 ,  H04L2025/03624

    摘要： Symbol detection and soft dempapping methods and systems are provided. Individual subset symbol detection according to an embodiment of the invention involves identifying a search subset of a transmission symbol set for a transmission symbol. For each other transmission symbol in communication signals, multiple search subsets of the transmission symbol set are identified. The multiple search subsets include respective search subsets based on each transmission symbol in either the search subset for the first identified one of the transmission symbols or each of the multiple search subsets identified for a different one of the other transmission symbols. Symbol detection errors may be detected by identifying competing symbols and computing competing distances. Soft demapping may be provided by calculating soft decision results based on detected symbols and weighting the soft decision result.

    摘要翻译： 提供符号检测和软解压方法和系统。 根据本发明的实施例的个体子集符号检测涉及识别用于传输符号的传输符号组的搜索子集。 对于通信信号中的每个其他传输符号，识别传输符号集合的多个搜索子集。 多个搜索子集包括基于针对第一被识别的一个传输符号的搜索子集中的每个传输符号或为其它传输符号中的不同一个标识的多个搜索子集中的每一个的每个传输符号。 可以通过识别竞争符号和计算竞争距离来检测符号检测错误。 可以通过基于检测到的符号计算软判定结果并对软决策结果加权来提供软解映射。

    Method and system for implementing a wireless network
    82.
    发明授权
    Method and system for implementing a wireless network 有权
    实现无线网络的方法和系统

    公开(公告)号：US08463130B2

    公开(公告)日：2013-06-11

    申请号：US12830224

    申请日：2010-07-02

    申请人： Jianglei Ma ,  Hang Zhang ,  Wen Tong ,  Ming Jia ,  Peiying Zhu

    发明人： Jianglei Ma ,  Hang Zhang ,  Wen Tong ,  Ming Jia ,  Peiying Zhu

    IPC分类号： H04B10/00

    CPC分类号： H04B10/1149 ,  H04W84/047 ,  H04W88/085 ,  H04W92/20 ,  Y02D70/142 ,  Y02D70/168 ,  Y02D70/46

    摘要： Aspects of the present invention provide a multi-band hybrid Gigabit wireless communication system which is enabled by a number of different complementary access technologies to realize ubiquitous hyper-connectivity, true broadband, seamless operation and low power consumption. The system is capable of serving fixed, nomadic and mobile scenarios. The multi-band wireless system is a low power wireless system which operates in different frequency bands covering the spectrum from radio wave to optical wave by making use of both regulated bandwidths and unregulated bandwidths. Using low power distributed antenna and low power indoor and outdoor antennas enables the use of unregulated bandwidths as well as regulated bandwidths as the low power nature of the signals reduces the possibility of interference with the regulated use of the signals.

    摘要翻译： 本发明的方面提供了一种多频带混合千兆无线通信系统，其通过多种不同的互补接入技术来实现无处不在的超连接，真正的宽带，无缝操作和低功耗。 该系统能够提供固定，游牧和移动场景。 多频带无线系统是一种低功率无线系统，其通过利用调节带宽和不受限制的带宽来操作，覆盖从无线电波到光波的频谱的不同频带。 使用低功率分布式天线和低功率室内和室外天线使得可以使用不受监管的带宽以及调节带宽，因为信号的低功耗特性降低了干扰信号调节使用的可能性。

    Method and System for Retransmitting Data Packets in a Space-Time Coded Radio Communication System
    86.
    发明申请
    Method and System for Retransmitting Data Packets in a Space-Time Coded Radio Communication System 有权
    在时空编码无线电通信系统中重传数据包的方法和系统

    公开(公告)号：US20120331366A1

    公开(公告)日：2012-12-27

    申请号：US13545116

    申请日：2012-07-10

    申请人： Wen Tong ,  Ming Jia ,  Jianglei Ma ,  Peiying Zhu

    发明人： Wen Tong ,  Ming Jia ,  Jianglei Ma ,  Peiying Zhu

    IPC分类号： H04L1/18

    CPC分类号： H04L1/0643 ,  H04L1/1867

    摘要： A method and system are provided for minimizing errors by retransmitting packets in a multiple-input-multiple-output (MIMO) space-time coded packet radio. A packet is transmitted using a first STC code mapping, the mapping including well-known symbol operations, and optional signal weighting. When transmission errors are detected the packet is re-transmitted using STC code mappings selected in turn from a deterministic sequence of STC code mappings. The STC code mappings are chosen in accordance with one or more principles.

    摘要翻译： 提供了一种用于通过在多输入多输出（MIMO）空时编码分组无线电中重传分组来最小化错误的方法和系统。 使用第一STC码映射来发送分组，该映射包括公知的符号操作和可选的信号加权。 当检测到传输错误时，使用从确定性序列的STC码映射依次选择的STC码映射来重新发送分组。 根据一个或多个原则选择STC代码映射。

    SOFT HANDOFF IN OFDMA SYSTEM
    87.
    发明申请
    SOFT HANDOFF IN OFDMA SYSTEM 有权
    OFDMA系统中的软操作

    公开(公告)号：US20120327905A1

    公开(公告)日：2012-12-27

    申请号：US13597921

    申请日：2012-08-29

    申请人： Jianglei Ma ,  Wen Tong ,  Ming Jia ,  Peiying Zhu ,  Mo-Han Fong ,  Hang Zhang

    发明人： Jianglei Ma ,  Wen Tong ,  Ming Jia ,  Peiying Zhu ,  Mo-Han Fong ,  Hang Zhang

    IPC分类号： H04W36/18

    CPC分类号： H04W36/18 ,  H04B7/022 ,  H04B7/0691

    摘要： Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divided and allocated into subchannels. The OFDM symbols are divided and multiplexed. A soft handoff zone with a first dimension of the subchannels and a second dimension of the divided and multiplexed OFDM symbols is defined. The soft handoff zone has subcarriers with a subchannel definition, for example, an identical permutation.

    摘要翻译： 披露了OFDMA系统中的软切换。 如果基站的导频信号强度超过定义的阈值，则将基站添加到活动集列表中。 多个正交频分复用（OFDM）符号中的子载波被划分并分配给子信道。 OFDM符号被分割和多路复用。 定义了具有子信道的第一维度和分割和多路复用的OFDM符号的第二维度的软切换区域。 软切换区具有子信道定义的子载波，例如相同的置换。

    SIGNALING AND CHANNEL ESTIMATION FOR UPLINK TRANSMIT DIVERSITY
    88.
    发明申请
    SIGNALING AND CHANNEL ESTIMATION FOR UPLINK TRANSMIT DIVERSITY 有权
    上传发射多样性的信号和通道估计

    公开(公告)号：US20120307928A1

    公开(公告)日：2012-12-06

    申请号：US13394888

    申请日：2010-09-21

    申请人： Ming Jia ,  Masoud Ebrahimi Tazeh Mahalleh ,  Mohammadhadi Baligh ,  Hua Xu ,  Jianglei Ma ,  Amir Khandani

    发明人： Ming Jia ,  Masoud Ebrahimi Tazeh Mahalleh ,  Mohammadhadi Baligh ,  Hua Xu ,  Jianglei Ma ,  Amir Khandani

    IPC分类号： H04B7/06

    CPC分类号： H04B7/0667 ,  H04B7/0669 ,  H04B7/0671 ,  H04L1/0625 ,  H04L27/2601

    摘要： In a method of transmitting a data stream from a transmitter in a multiple-input-multiple-output (MIMO) wireless communication system, where the transmitter comprises a plurality of transmit antennas, a discrete Fourier transform (DFT) is applied to the data stream to generate a plurality of symbol sequences; symbols of a first symbol sequence from the plurality of symbol sequences are paired with symbols of a second symbol sequence from the plurality of symbol sequences to generate a plurality of symbol pairs, wherein the pairing results in an orphan symbol; a space-time block code (STBC) is applied to the symbol pairs to generate a plurality of sets of STBC symbols, each set of STBC symbols being associated with a corresponding one of the plurality of antennas; a cyclic delay diversity (CDD) operation is applied to the orphan symbol to generate a plurality of CDD symbols, each CDD symbol being associated with a corresponding one of the plurality of antennas; and each one of the antennas transmits the corresponding set of STBC symbols and the corresponding CDD symbol.

    摘要翻译： 在多输入多输出（MIMO）无线通信系统中的发射机发送数据流的方法中，其中发射机包括多个发射天线，将离散傅立叶变换（DFT）应用于数据流 以产生多个符号序列; 来自多个符号序列的第一符号序列的符号与来自多个符号序列的第二符号序列的符号配对，以产生多个符号对，其中所述配对导致孤立符号; 将空时块码（STBC）应用于符号对以产生多组STBC符号，每组STBC符号与多个天线中的相应一个天线相关联; 循环延迟分集（CDD）操作被应用于孤立符号以产生多个CDD符号，每个CDD符号与多个天线中的相应一个天线相关联; 并且每个天线发送相应的一组STBC符号和相应的CDD符号。

    Interference-weighted communication signal processing systems and methods
    89.
    发明授权
    Interference-weighted communication signal processing systems and methods 有权
    干扰加权通信信号处理系统和方法

    公开(公告)号：US08259881B2

    公开(公告)日：2012-09-04

    申请号：US13240727

    申请日：2011-09-22

    申请人： Ming Jia ,  Wen Tong ,  Dong-Shen Yu

    发明人： Ming Jia ,  Wen Tong ,  Dong-Shen Yu

    IPC分类号： H04L1/06

    CPC分类号： H04B7/0667 ,  H04B7/0848 ,  H04B7/0891 ,  H04L1/0045 ,  H04L1/0618 ,  H04L5/023 ,  H04L27/2647

    摘要： A level of interference affecting signal components of received communication signals is estimated and used to weight the signal components. The signal components in a each of a number of groups of signal components are weighted based on respective interference estimates to thereby adjust signal components for colored interference, which may vary significantly between different groups of signal components. Each group of signal components may include a single component or components within a relatively narrow sub-band of the communication signals, such as a coherence bandwidth of an Orthogonal Frequency Division Multiplexing (OFDM) signal.

    摘要翻译： 估计接收到的通信信号的影响信号分量的干扰电平，并用于加权信号分量。 基于相应的干扰估计来对多个信号分量组中的每一个中的信号分量进行加权，从而调整用于着色干扰的信号分量，其可以在不同的信号分量组之间显着变化。 每组信号分量可以包括通信信号的相对窄的子带内的单个分量，例如正交频分复用（OFDM）信号的相干带宽。

    WIRELESS FEEDBACK SYSTEM AND METHOD
    90.
    发明申请
    WIRELESS FEEDBACK SYSTEM AND METHOD 有权
    无线反馈系统及方法

    公开(公告)号：US20120219083A1

    公开(公告)日：2012-08-30

    申请号：US13464640

    申请日：2012-05-04

    申请人： Wen Tong ,  Hosein Nikopourdeilami ,  Amir Keyvam Khandani ,  Hua Xu ,  Ming Jia ,  Peiying Zhu ,  Dong-Sheng Yu

    发明人： Wen Tong ,  Hosein Nikopourdeilami ,  Amir Keyvam Khandani ,  Hua Xu ,  Ming Jia ,  Peiying Zhu ,  Dong-Sheng Yu

    IPC分类号： H04B7/04 ,  H04L27/28

    CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0634 ,  H04B7/0639 ,  H04L69/04 ,  H04L69/14

    摘要： A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Sl for each codeword cl of the codebook C. Each codeword subset Sl defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Sl are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.

    摘要翻译： 码本C被提供在MIMO发射机以及MIMO接收机中。 码本C将包括M个码字ci，其中i是每个码字ci的唯一码字索引。 每个码字定义了应用于MIMO信号的加权因子，并且可以对应于在从MIMO发射机的各个天线发送之前应用于MIMO信号的信道矩阵或向量。 本发明为码本C的每个码字cl创建码字子集S1。每个码字子集S1定义从码本C中的所有码字ci中选择的L个码字cj。码字子集S1中的码字cj是L个码字 在整个码本中与相应的码字ci最相关。