Multi-code multicarrier code division multiple access system in frequency-selective fading channels
    1.
    发明申请
    Multi-code multicarrier code division multiple access system in frequency-selective fading channels 审中-公开
    频率选择性衰落信道中的多码多载波码分多址系统

    公开(公告)号:US20090129444A1

    公开(公告)日:2009-05-21

    申请号:US11984563

    申请日:2007-11-20

    IPC分类号: H04B1/707

    CPC分类号: H04J13/004 H04L27/2601

    摘要: The present invention relates to a multi-code multicarrier code division multiple access system in frequency-selective fading channels. According to the present invention, the transmitting device thereof uses the mapping/spectrum-spreading units to receive the plurality of substreams, map and spread the plurality of substreams, and produce a plurality of biorthogonal keying data items. The plurality of repetition units receives the plurality of biorthogonal keying data items, respectively, repeats the plurality of biorthogonal keying data items, and produces the plurality of repeated data item. The shifting units shift the plurality of repeated data items, respectively, and produce a plurality of shifted data items. The shifted data items are orthogonal to each other. Thereby, the peak-to-average-power-ratio (PAPR) is lowered.

    摘要翻译: 本发明涉及频率选择性衰落信道中的多码多载波码分多址系统。 根据本发明,其发送装置使用映射/频谱扩展单元接收多个子流,映射和扩展多个子流,并产生多个双正交密钥数据项。 多个重复单元分别接收多个双正交密钥数据项,重复多个双正交密钥数据项,并产生多个重复数据项。 移位单元分别移动多个重复数据项,并产生多个移位数据项。 移位的数据项彼此正交。 由此,峰均比功率比(PAPR)降低。

    Transmission system with interference avoidance capability and method thereof
    2.
    发明授权
    Transmission system with interference avoidance capability and method thereof 有权
    具有干扰回避能力的传输系统及其方法

    公开(公告)号:US07634233B2

    公开(公告)日:2009-12-15

    申请号:US11604317

    申请日:2006-11-27

    IPC分类号: H04B1/00

    摘要: The present invention relates to a transmission system with interference avoidance capability, which includes a transmission apparatus and a receiving apparatus. The transmission method thereof receives first data by means of an interference-processing module of the transmission apparatus and adds a plurality of extension data to the first data to produce second data for replacing a plurality of data corresponding to an interfered band in the second data with zero data, and then producing transmission data. The transmission data is converted to a radio-frequency signal by a transmission-processing module and transmitted to the receiving apparatus. Thereby, signal interference can be prevented by avoiding spectrum overlap regions.

    摘要翻译: 本发明涉及具有干扰回避能力的传输系统,其包括传输装置和接收装置。 其发送方法通过发送装置的干扰处理模块接收第一数据,并将多个扩展数据与第一数据相加,以产生用于替换与第二数据中的干扰频带相对应的多个数据的第二数据, 零数据,然后产生传输数据。 发送数据由发送处理模块转换为射频信号,发送给接收装置。 因此,可以通过避免频谱重叠区域来防止信号干扰。

    MIMO-CDMA apparatus and the coding/decoding method thereof
    3.
    发明申请
    MIMO-CDMA apparatus and the coding/decoding method thereof 审中-公开
    MIMO-CDMA装置及其编码/解码方法

    公开(公告)号:US20070133659A1

    公开(公告)日:2007-06-14

    申请号:US11546332

    申请日:2006-10-12

    IPC分类号: H04B1/00 H04L1/02

    摘要: A Multiple-Output Multiple-Input Code-Division Multiple Access (MIMO-CDMA) apparatus and the coding method thereof. The apparatus includes a transmitter side and receiver side. Both of the transmitter side and the receiver side have a plurality of antennas for achieving the effect of multi-path transmission and receiving. In addition, at the receiver side, use preamble-spreading codes and space-time block coding technology to eliminate multi-path signal interference as well as to modify carrier frequency shift of the received signal.

    摘要翻译: 一种多输出多输入码分多址(MIMO-CDMA)装置及其编码方法。 该装置包括发射机侧和接收机侧。 发射机侧和接收机侧均具有用于实现多路径发送和接收的效果的多个天线。 此外,在接收机侧,使用前置码扩展码和空时块编码技术来消除多路径信号干扰以及修改接收信号的载波频移。

    Multiple-input multiple-output code division multiple access (MIMO-CDMA) wireless communication equipment
    4.
    发明授权
    Multiple-input multiple-output code division multiple access (MIMO-CDMA) wireless communication equipment 有权
    多输入多输出码分多址(MIMO-CDMA)无线通信设备

    公开(公告)号:US07539265B2

    公开(公告)日:2009-05-26

    申请号:US11271414

    申请日:2005-11-09

    IPC分类号: H04L27/18

    CPC分类号: H04L1/0643

    摘要: A multiple-input multiple-output code division multiple access (MIMO-CDMA) wireless communication equipment has a transmitter and a receiver. The transmitter has an encoder for receiving and encoding a plurality of data, and sending the data to a quadrature phase-shift keying (QPSK) unit. The QPSK unit conducts QPSK modulating to an output of the encoder and sends it to a space-time block coding (STBC) unit or a space multiplexer to process space-time coding or space coding. A plurality of data frame generating modules generate a data frame respectively based on the output of the STBC unit, a plurality of preamble codes generated by a preamble code spreading unit, a pilot code and a cyclic prefix. The data frame is sent to the receiver via a plurality of transmitting antennas.

    摘要翻译: 多输入多输出码分多址(MIMO-CDMA)无线通信设备具有发射机和接收机。 发射机具有用于接收和编码多个数据的编码器,并将数据发送到正交相移键控(QPSK)单元。 QPSK单元对编码器的输出进行QPSK调制,并将其发送到空时块编码(STBC)单元或空间多路复用器以处理时空编码或空间编码。 多个数据帧生成模块分别基于STBC单元的输出,由前导码扩展单元生成的多个前导码,导频代码和循环前缀生成数据帧。 数据帧通过多个发送天线发送到接收机。

    MIMO-CDMA wireless communication equipment and method for pre-verifying thereof
    5.
    发明申请
    MIMO-CDMA wireless communication equipment and method for pre-verifying thereof 有权
    MIMO-CDMA无线通信设备及其预验证方法

    公开(公告)号:US20070104287A1

    公开(公告)日:2007-05-10

    申请号:US11271414

    申请日:2005-11-09

    IPC分类号: H04L1/02

    CPC分类号: H04L1/0643

    摘要: A MIMO-CDMA wireless communication equipment has a transmitter and a receiver. The transmitter has an encoder for receiving and encoding a plurality of data, and sending the data to a quadrature phase-shift keying (QPSK) unit. The QPSK unit conducts QPSK modulating to an output of the encoder and sends it to a space-time block coding (STBC) unit or a space multiplexer to process space-time coding or space coding. A plurality of data frame generating modules generate a data frame respectively based on the output of the STBC unit, a plurality of preamble codes generated by a preamble code spreading unit, a pilot code and a cyclic prefix. The data frame is sent to the receiver via a plurality of transmitting antennas.

    摘要翻译: MIMO-CDMA无线通信设备具有发射机和接收机。 发射机具有用于接收和编码多个数据的编码器,并将数据发送到正交相移键控(QPSK)单元。 QPSK单元对编码器的输出进行QPSK调制,并将其发送到空时块编码(STBC)单元或空间多路复用器以处理时空编码或空间编码。 多个数据帧生成模块分别基于STBC单元的输出,由前导码扩展单元生成的多个前导码,导频代码和循环前缀生成数据帧。 数据帧通过多个发送天线发送到接收机。

    METHOD FOR PRE-VERIFYING SOFTWARE/HARDWARE DESIGN OF COMMUNICATION SYSTEM
    6.
    发明申请
    METHOD FOR PRE-VERIFYING SOFTWARE/HARDWARE DESIGN OF COMMUNICATION SYSTEM 审中-公开
    预处理通信系统软件/硬件设计方法

    公开(公告)号:US20090076789A1

    公开(公告)日:2009-03-19

    申请号:US12274615

    申请日:2008-11-20

    IPC分类号: G06F17/50

    CPC分类号: H04L1/0643

    摘要: A pre-verifying method for software/hardware design of a communication system includes simulating a process of sending a data frame from a transmitter to a receiver with a transceiver algorithm meeting a preset specification for obtaining simulation parameters. A transmitter hardware platform sends the data frame via an antenna. A receiver hardware platform receives an echo signal of the data frame and compares each parameter of the echo signal with the simulation parameters. The comparison result of various parameters of the echo signal and the simulation parameters is verified to be in a desired range or not. When the comparison result is not in the desired range, the transceiver algorithm is adjusted. When the comparison result is in the desired range, the transceiver algorithm is converted to a hardware program language format to be written in a programmable module to perform the action of the transmitter and the receiver.

    摘要翻译: 用于通信系统的软件/硬件设计的预验证方法包括模拟通过满足用于获得模拟参数的预设规范的收发器算法从发射机向接收机发送数据帧的过程。 发射机硬件平台通过天线发送数据帧。 接收机硬件平台接收数据帧的回波信号,并将回波信号的每个参数与仿真参数进行比较。 回波信号和模拟参数的各种参数的比较结果被验证在期望的范围内。 当比较结果不在期望的范围内时,调整收发器算法。 当比较结果在期望的范围内时,收发器算法被转换成硬件程序语言格式,以写入可编程模块以执行发射机和接收机的动作。

    Transmission system with interference avoidance capability and method thereof
    7.
    发明申请
    Transmission system with interference avoidance capability and method thereof 有权
    具有干扰回避能力的传输系统及其方法

    公开(公告)号:US20080125046A1

    公开(公告)日:2008-05-29

    申请号:US11604317

    申请日:2006-11-27

    IPC分类号: H04B1/00

    摘要: The present invention relates to a transmission system with interference avoidance capability, which includes a transmission apparatus and a receiving apparatus. The transmission method thereof receives first data by means of an interference-processing module of the transmission apparatus and adds a plurality of extension data to the first data to produce second data for replacing a plurality of data corresponding to an interfered band in the second data with zero data, and then producing transmission data. The transmission data is converted to a radio-frequency signal by a transmission-processing module and transmitted to the receiving apparatus. Thereby, signal interference can be prevented by avoiding spectrum overlap regions.

    摘要翻译: 本发明涉及具有干扰回避能力的传输系统,其包括传输装置和接收装置。 其发送方法通过发送装置的干扰处理模块接收第一数据,并将多个扩展数据与第一数据相加,以产生用于替换与第二数据中的干扰频带相对应的多个数据的第二数据, 零数据,然后产生传输数据。 发送数据由发送处理模块转换为射频信号,发送给接收装置。 因此,可以通过避免频谱重叠区域来防止信号干扰。

    Equipment and method for MIMO SC-FED communication system
    8.
    发明申请
    Equipment and method for MIMO SC-FED communication system 审中-公开
    MIMO SC-FED通信系统的设备和方法

    公开(公告)号:US20070104286A1

    公开(公告)日:2007-05-10

    申请号:US11270225

    申请日:2005-11-08

    IPC分类号: H04L1/02 H04K1/10

    CPC分类号: H04L1/0643

    摘要: Equipment for a MIMO differential SC-FED communication system that includes a transmitter and a receiver is provided. The transmitter has a differential block encoder module for receiving a plurality of data block pairs and performing a circular convolution operation on the data blocks to produce a plurality of coded data blocks in a space-time block coding (STBC) unit. The STBC unit will perform a space-time block encoding process on the output from the differential block encoder module to obtain a plurality of transmitting data blocks. A plurality of frame generators receives the respective transmitting data blocks and adds a cyclic prefix to the corresponding transmitting data blocks to generate a plurality of block frames. Then, the frame generators send the block frames to the receiver of the present invention via a corresponding transmitting antenna.

    摘要翻译: 提供了包括发射机和接收机的MIMO差分SC-FED通信系统的设备。 发射机具有差分块编码器模块,用于接收多个数据块对,并对数据块执行循环卷积运算,以在时空块编码(STBC)单元中产生多个编码数据块。 STBC单元将对来自差分块编码器模块的输出执行空时块编码处理,以获得多个发送数据块。 多个帧生成器接收相应的发送数据块,并将循环前缀添加到相应的发送数据块以生成多个块帧。 然后,帧生成器经由相应的发送天线将块帧发送到本发明的接收机。

    Frequency offset estimation circuit of receiving device of wireless transmission system
    9.
    发明申请
    Frequency offset estimation circuit of receiving device of wireless transmission system 审中-公开
    无线传输系统接收装置频偏估计电路

    公开(公告)号:US20080117953A1

    公开(公告)日:2008-05-22

    申请号:US11601764

    申请日:2006-11-20

    IPC分类号: H04B1/713 H04L27/22 H04B1/69

    CPC分类号: H04L27/2657 H04L27/2675

    摘要: The present invention is related to a frequency offset estimation circuit of receiving device of wireless transmission system, which includes a delay unit, a multiplier, an angle estimator, a compensation unit, and an arithmetic logic unit. The delay unit receives a preamble symbol of a baseband and delays the preamble symbol, the preamble symbol adjusts by a launcher of the wireless transmission system, and the launcher adjusts the preamble symbol in accordance with a cover sequence. The multiplier multiplies the preamble symbol and after delayed the preamble symbol by the delay unit for producing a first data. The angle estimator estimates the first data for an estimative value of phase shift. The compensation unit determines the estimative value of phase shift to compensate the estimative value of phase shift. The arithmetic logic unit produces a frequency deviation in accordance with after compensated the estimative value of phase shift by the compensation unit.

    摘要翻译: 本发明涉及一种无线传输系统的接收装置的频率偏移估计电路,其包括延迟单元,乘法器,角度估计器,补偿单元和算术逻辑单元。 延迟单元接收基带的前导码符号并延迟前导符号,由无线传输系统的发射器调整前导码符号,并且发射器根据覆盖序列调整前导码符号。 乘法器将前导符号乘法,并且在将前导码符号延迟了用于产生第一数据的延迟单元之后。 角度估计器估计相移估计值的第一数据。 补偿单元确定相移的估计值以补偿相移的估计值。 算术逻辑单元根据补偿单元对相移的估计值进行补偿后产生频率偏差。

    Frequency-hopping analysis circuit of receiving apparatus in wireless transmission system
    10.
    发明申请
    Frequency-hopping analysis circuit of receiving apparatus in wireless transmission system 审中-公开
    无线传输系统中接收装置的跳频分析电路

    公开(公告)号:US20080117954A1

    公开(公告)日:2008-05-22

    申请号:US11601763

    申请日:2006-11-20

    IPC分类号: H04B1/713

    摘要: The present invention relates to a frequency-hopping analysis circuit of a receiving apparatus in a wireless transmission system, which includes an RF receiving circuit, a detection circuit, and a matching module. The RF receiving circuit receives an RF signal according to an initial frequency-hopping sequence to produce a baseband signal. The detection circuit detects the signal strength of the baseband signal, and identifies the corresponding piconet group of the baseband signal according to the estimated strength. Then, the matching module matches a preamble of the baseband signal according to a plurality of piconets of the corresponding piconet group of the baseband signal, and gives the corresponding piconet of the baseband signal. Thereby, the corresponding frequency-hopping sequence of the baseband signal is given and is transmitted to the RF receiving circuit for replacing the initial frequency-hopping sequence.

    摘要翻译: 本发明涉及无线传输系统中的接收装置的跳频分析电路,其包括RF接收电路,检测电路和匹配模块。 RF接收电路根据初始跳频序列接收RF信号以产生基带信号。 检测电路检测基带信号的信号强度,并根据估计强度识别基带信号的对应微微网组。 然后,匹配模块根据基带信号的相应微微网组的多个微微网匹配基带信号的前同步码,并给出基带信号的相应微微网。 由此,给出基带信号的相应的跳频序列,并将其发送到RF接收电路,以替换初始的跳频序列。