無線通信装置及び方法
    1.
    发明申请
    無線通信装置及び方法 审中-公开
    无线电通信设备和方法

    公开(公告)号:WO2010053059A1

    公开(公告)日:2010-05-14

    申请号:PCT/JP2009/068721

    申请日:2009-10-30

    Abstract:  無線通信装置は、パイロット信号(13)及びデータ信号(14)を含む第1の送信信号のうちデータ信号(14)に対して摂動ベクトルを付加し、パイロット信号(13)及びデータ信号(15)を含む第2の送信信号を得る摂動ベクトル付加部(103)と、第2の送信信号のうちデータ信号(15)に対して、受信側における干渉を除去するためのウェイト(18)を乗算し、パイロット信号(16)及びデータ信号(17)を含む第3の送信信号を得るウェイト乗算部(104)と、第3の送信信号のうちデータ信号(17)に対して、総送信電力を正規化するための共通の正規化係数を乗算し、第4の送信信号を得る正規化係数乗算部(105)とを具備する。

    Abstract translation: 无线电通信装置包括:除数据信号(14)之外还将包含在包含导频信号(13)的第一传输信号中的数据信号(14)的置换向量相加的置换向量加法单元(103),因此 以获得包含导频信号(13)和数据信号(15)的第二传输信号; 加权乘法单元(104),其将包含在第二发送信号中的数据信号(15)乘以用于消除接收侧的干扰的权重(18),以获得包含导频信号(16)的第三发送信号, 和数据信号(17); 以及归一化系数乘法单元,其将包含在第三发送信号中的数据信号(17)乘以用于归一化总发送功率的公共归一化系数,以获得第四发送信号。

    EQUALISATION OF MULTI-CARRIER SIGNALS
    2.
    发明申请
    EQUALISATION OF MULTI-CARRIER SIGNALS 审中-公开
    多载波信号的均衡

    公开(公告)号:WO2002073913A1

    公开(公告)日:2002-09-19

    申请号:PCT/IE2002/000026

    申请日:2002-03-01

    Inventor: BRANAGAN, Peter

    Abstract: A multi-channel communication system is disclosed in which a base station is in communication with a plurality of user terminals. To enable the user terminals to perform equalisation on signals sent to the base station, the base station transmits periodic multi-carrier reference bursts on a channel assigned to the user terminals for use in transmission of signals to the base station. The user terminal can analyse the reference signals that it receives from the base station and from that analysis deduce the condition of the channel and adjust the signals that it transmits accordingly. The system may be embodied in a multiple access orthogonal frequency division multiplexing arrangement, for example, being in accordance with an ETSI EN300xxx standard, in which data is digitally encoded in RF signals. It may also be embodied in Voice over IP communication.

    Abstract translation: 公开了一种多通道通信系统,其中基站与多个用户终端通信。 为了使用户终端能够对发送到基站的信号执行均衡,基站在分配给用户终端的信道上发送周期性多载波参考突发,以用于向基站发送信号。 用户终端可以分析其从基站接收到的参考信号,并从该分析中推导出信道的状况并调整相应的信号。 该系统可以体现在多址正交频分复用布置中,例如符合ETSI EN300xxx标准,其中数据以RF信号进行数字编码。 它也可以体现在IP语音通信中。

    SHORT PACKET FOR USE IN BEAMFORMING
    3.
    发明申请
    SHORT PACKET FOR USE IN BEAMFORMING 审中-公开
    用于波束形成的短包装

    公开(公告)号:WO2011034753A3

    公开(公告)日:2011-07-14

    申请号:PCT/US2010047990

    申请日:2010-09-07

    Abstract: A method for generating a beamforming training (BFT) unit includes generating a physical layer (PIlY) preamble of the BFT unit and generating a first encoding block and a second encoding block using PHY data and MAC data, including at least one of i) using a number of padding bits in a PHY layer of the BFT unit such that the BFT unit consists of the PHY preamble, the first encoding block, and the second encoding block, and ii) generating a MAC protocol data unit (MPDU) having a length such that the BFT unit consists of the PHY preamble, the first encoding block, and the second encoding block.

    Abstract translation: 一种用于生成波束形成训练(BFT)单元的方法包括:生成BFT单元的物理层(PI1Y)前导码,并且使用PHY数据和MAC数据生成第一编码块和第二编码块,包括以下中的至少一个:i)使用 BFT单元的PHY层中的多个填充比特,使得BFT单元由PHY前导码,第一编码块和第二编码块组成,以及ii)生成具有长度的MAC协议数据单元(MPDU) 使得BFT单元由PHY前导码,第一编码块和第二编码块组成。

    METHOD AND APPARATUS FOR PERFORMING CHANNEL ESTIMATION WITH A LIMITED RECEIVER
    6.
    发明申请
    METHOD AND APPARATUS FOR PERFORMING CHANNEL ESTIMATION WITH A LIMITED RECEIVER 审中-公开
    用有限接收器执行信道估计的方法和装置

    公开(公告)号:WO2002073917A1

    公开(公告)日:2002-09-19

    申请号:PCT/EP2002/000602

    申请日:2002-01-22

    Abstract: Performing channel estimation with a limited receiver includes performing a first estimation of a first portion of a signal to obtain first parameters of the portion of the signal. The first portion of the signal has predetermined offsets added during transmission. The predetermined offsets are based on the modulation format of a second portion. The first and second portions have different modulation formats. The first portion of the signal is demodulated using the first parameters to recover data symbols. An equalizer is tranined using a decision directed technique to obtain equalizer coefficients. The demodulated first portion of the signal is checked to confirm correct demodulation. The second protion of the signal is then demodulated using the equalizer coefficents.

    Abstract translation: 用有限的接收机执行信道估计包括执行信号的第一部分的第一估计以获得信号的该部分的第一参数。 信号的第一部分在传输期间具有预定的偏移量。 预定的偏移是基于第二部分的调制格式。 第一和第二部分具有不同的调制格式。 使用第一参数来解调信号的第一部分以恢复数据符号。 使用决策技术来转移均衡器以获得均衡器系数。 检查信号的解调的第一部分以确认正确的解调。 然后使用均衡器系数解调信号的第二次。

    TETRA-BASED MOBILE COMMUNICATIONS SYSTEM
    7.
    发明申请
    TETRA-BASED MOBILE COMMUNICATIONS SYSTEM 审中-公开
    基于TETRA的移动通信系统

    公开(公告)号:WO2014125264A1

    公开(公告)日:2014-08-21

    申请号:PCT/GB2014/050398

    申请日:2014-02-12

    Applicant: SEPURA PLC

    Inventor: STEPHENS, Peter

    Abstract: A scheme for indicating the presence of stealing or other information in a digital mobile radio communications system. A sequence of pilot symbols and/or synchronisation symbols that can be distinguished from a normal sequence of pilot symbols and/or synchronisation symbols is included in a transmission to indicate the presence of stealing. A receiver determines whether a received transmission includes the stealing sequence or the normal sequence and decodes the transmission accordingly.

    Abstract translation: 用于指示在数字移动无线电通信系统中存在窃取或其他信息的方案。 可以与导频符号和/或同步符号的正常序列区分的导频符号和/或同步符号的序列被包括在传输中以指示窃取的存在。 接收机确定接收到的传输是否包括窃取序列或正常序列,并相应地解码传输。

    IMPLICIT AND EXPLICIT CHANNEL SOUNDING FOR BEAMFORMING
    8.
    发明申请
    IMPLICIT AND EXPLICIT CHANNEL SOUNDING FOR BEAMFORMING 审中-公开
    用于光束的隐含和明确的通道声音

    公开(公告)号:WO2012030833A1

    公开(公告)日:2012-03-08

    申请号:PCT/US2011/049752

    申请日:2011-08-30

    Abstract: A communication device for transmitting beamformed signals using implicit channel sounding is described. The communication device includes a processor and instructions stored in memory. The communication device receives one or more sounding signals and computes a channel estimate based on the one or more sounding signals. Frequency offset compensation is applied to the channel estimate by the communication device. The communication device also computes a precoding matrix based on the channel estimate and transmits a beamformed signal using the precoding matrix. Another communication device for receiving beamformed signals using explicit channel sounding is also described. The communication device includes a processor and instructions stored in memory. The communication device receives one or more sounding signals, computes a channel estimate based on the one or more sounding signals and applies amplitude compensation to the channel estimate. The communication device also sends estimated channel data and receives a beamformed signal.

    Abstract translation: 描述了使用隐式信道探测发送波束形成信号的通信设备。 通信设备包括处理器和存储在存储器中的指令。 通信设备接收一个或多个探测信号,并且基于一个或多个探测信号来计算信道估计。 频率偏移补偿被通信装置应用于信道估计。 通信设备还基于信道估计来计算预编码矩阵,并使用预编码矩阵发送波束形成的信号。 还描述了使用显式通道探测接收波束形成信号的另一通信设备。 通信设备包括处理器和存储在存储器中的指令。 通信设备接收一个或多个探测信号,基于一个或多个探测信号计算信道估计,并对信道估计应用振幅补偿。 通信设备还发送估计的信道数据并接收波束形成的信号。

    PERIODIC TRAINING SIGNALS
    9.
    发明申请
    PERIODIC TRAINING SIGNALS 审中-公开
    定期培训信号

    公开(公告)号:WO2005094028A1

    公开(公告)日:2005-10-06

    申请号:PCT/IL2005/000345

    申请日:2005-03-28

    Inventor: STOPLER, Danny

    CPC classification number: H04L27/2613 H04L25/0226 H04L2025/03783

    Abstract: A method for digital communication includes generating time-domain symbols (54) having a predetermined symbol duration in accordance with a discrete multi-tone (DMT) modulation scheme. A cyclic extension (56,58) is added to each of the time-domain symbols so as to form data blocks (50,52) having a block length that is not an integer multiple of the symbol duration. A training pattern is generated on one or more tones of the DMT modulation scheme, wherein the training pattern is periodic over a sequence of the data blocks with a period equal to the symbol duration. The sequence of the data blocks is transmitted over a communication channel (26) to a receiver (24), which processes the training pattern so as to determine a response of the channel to the one or more tones.

    Abstract translation: 一种用于数字通信的方法包括根据离散多音调(DMT)调制方案产生具有预定符号持续时间的时域符号(54)。 将周期扩展(56,58)添加到每个时域符号,以形成具有不是符号持续时间的整数倍的块长度的数据块(50,52)。 在DMT调制方案的一个或多个音调上产生训练模式,其中训练模式是周期性的数据块的序列周期等于符号持续时间。 数据块的序列通过通信信道(26)发送到接收机(24),接收机处理训练模式,以便确定信道对一个或多个音调的响应。

    EQUALIZER PERFORMANCE ENHANCEMENTS FOR BROADBAND WIRELESS APPLICATIONS
    10.
    发明申请
    EQUALIZER PERFORMANCE ENHANCEMENTS FOR BROADBAND WIRELESS APPLICATIONS 审中-公开
    用于宽带无线应用的均衡性能增强

    公开(公告)号:WO2002071608A1

    公开(公告)日:2002-09-12

    申请号:PCT/US2002/006879

    申请日:2002-03-05

    Abstract: A system and method for enhancing the performance of an equalizer in a modem (100) that uses stored parameters in a parameter storage memory (933) of a receiver module (102) for each burst from each remote site to demodulate a received data stream. The parameter storage memory (933) contains channel characteristics, in the form of taps, corresponding to each remote site. The parameter storage (933) sends taps values to the digital equalization module (930) corresponding to the remote site that is presently sending us an uplink burst to the modem (100). The acquisition, tracking and modulation control module (918) genertaes an index of remote sites and their associated tap values to expedite their retrieval from the parameter storage memory (933).

    Abstract translation: 一种用于增强调制解调器(100)中的均衡器的性能的系统和方法,所述调制解调器(100)使用来自每个远程站点的每个突发的接收器模块(102)的参数存储存储器(933)中存储的参数来解调所接收的数据流。 参数存储存储器(933)包含对应于每个远程站点的抽头形式的通道特性。 参数存储器(933)向与数字均衡模块(930)发送抽头值,对应于当前向调制解调器(100)发送上行脉冲串的远程站点。 采集,跟踪和调制控制模块(918)产生远程站点的索引及其相关联的抽头值,以加速从参数存储存储器检索(933)。

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