公开(公告)号：WO2013019242A2

公开(公告)日：2013-02-07

申请号：PCT/US2011046622

申请日：2011-08-04

Applicant: DIGITAL COMPRESSION TECHNOLOGY LP ,  GRUENBERG ELLIOT ,  ANTAKI PATRICK ,  VAMAN DHADESUGOOR ,  JUDELSON DAVID N

Inventor： GRUENBERG ELLIOT L ,  ANTAKI PATRICK ,  VAMAN DHADESUGOOR ,  JUDELSON DAVID N

IPC: H04B15/00

CPC classification number: H04L27/28 ,  H03H17/0283 ,  H04L5/0007 ,  H04L25/03821 ,  H04L27/2626 ,  H04L2027/0016 ,  H04L2027/0053

Abstract: A unique digital compression technology for increasing the information carrying capacity of a bandwidth limited communications path highway by using a combined coding and modulation technique. The inventive technology allows multiple independent modulated data streams to simultaneously and instantaneously share the same bandwidth without cross-channel interference. A matched filter is used to substantially reduce the error rate and utilizes a unique training method based on performing a spectral response test. An algorithm calculates the effect of the unique characteristics of the communications highway on the transmitted signal and generates an ideal signal stored in the matched filter for comparison with received signals.

Abstract translation: 一种独特的数字压缩技术，通过使用组合编码和调制技术来增加带宽有限的通信路径高速公路的信息承载能力。 本发明的技术允许多个独立的调制数据流同时并且瞬时地共享相同的带宽而没有跨信道干扰。 使用匹配滤波器来大大降低误码率，并且利用基于执行频谱响应测试的唯一训练方法。 一种算法计算通信公路的独特特性对发射信号的影响，并产生存储在匹配滤波器中的理想信号，以便与接收信号进行比较。

公开(公告)号：WO2011099765A2

公开(公告)日：2011-08-18

申请号：PCT/KR2011/000860

申请日：2011-02-09

Applicant: LG ELECTRONICS INC. ,  LEE, Dae Won ,  NOH, Yu Jin ,  KANG, Byeong Woo ,  SEOK, Yong Ho

Inventor： LEE, Dae Won ,  NOH, Yu Jin ,  KANG, Byeong Woo ,  SEOK, Yong Ho

IPC: H04B7/04 ,  H04B7/26 ,  H04W88/08

CPC classification number: H04L69/323 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06 ,  H04L27/2626 ,  H04L27/2646 ,  H04L27/2647 ,  H04L27/28 ,  H04W84/12

Abstract: A method and apparatus for transmitting control information in a wireless communication system is provided. The method includes transmitting common control information including a multiple input multiple output (MIMO) indicator indicating single user-MIMO (SU-MIMO) or multi user-MIMO (MU-MIMO) to a receiver, generating first precoded dedicated control information by performing precoding on dedicated control information including information for the MU-MIMO by the use of a first precoding matrix,generating second precoded dedicated control information by performing precoding on the first precoded dedicated control information by the use of a second precoding matrix and transmitting the second precoded dedicated control information to the receiver.

Abstract translation: 提供一种在无线通信系统中发送控制信息的方法和装置。 该方法包括向接收机发送包括指示单用户MIMO（SU-MIMO）或多用户MIMO（MU-MIMO）的多输入多输出（MIMO）指示符的公共控制信息，通过执行预编码产生第一预编码的专用控制信息 通过使用第一预编码矩阵来包括用于MU-MIMO的信息的专用控制信息，通过使用第二预编码矩阵对第一预编码专用控制信息执行预编码来产生第二预编码专用控制信息，并且发送第二预编码专用 控制信息给接收机。

公开(公告)号：WO2010131487A1

公开(公告)日：2010-11-18

申请号：PCT/JP2010/003289

申请日：2010-05-14

Applicant: パナソニック株式会社 ,  湯田泰明 ,  中尾正悟 ,  堀内綾子 ,  今村大地 ,  星野正幸 ,  須増淳

Inventor： 湯田泰明 ,  中尾正悟 ,  堀内綾子 ,  今村大地 ,  星野正幸 ,  須増淳

IPC: H04W72/08 ,  H04M1/00 ,  H04W16/26 ,  H04W48/10

CPC classification number: H04W24/10 ,  H04B7/2606 ,  H04L1/0026 ,  H04L1/20 ,  H04L5/0057 ,  H04L12/189 ,  H04L27/28 ,  H04W24/02 ,  H04W84/047

Abstract: 　隣接セルの干渉がない状態の、自セルの回線品質を精度良く測定すること。本発明の無線通信端末は、基地局と接続され、前記基地局とデータを送受信する無線通信端末であって、前記基地局から、自セルの回線品質を測定するための制御情報を含む信号を受信する受信部と、前記受信部で受信した前記信号から、前記制御情報を抽出する抽出部と、前記制御情報に基づき、隣接セルが信号を送信していない領域において、自セルの回線品質を測定する測定部と、前記測定部で測定した、前記自セルの回線品質の測定結果を、前記基地局へ送信する送信部と、を備える。

Abstract translation: 提供了连接到基站的无线通信终端，向所述基站发送数据并从所述基站接收数据，并且可以在不存在来自相邻小区的干扰的状态下精确地测量当前小区的线路质量。 无线通信终端设置有：接收单元，从基站接收包含用于测量当前小区的线路质量的控制信息的信号; 提取单元，从接收单元接收到的上述信号中提取上述控制信息; 测量单元，其基于上述控制信息测量相邻小区不发送信号的区域中的当前小区的线路质量; 以及发送单元，其向所述基站发送由所述测量单元测量的当前小区的线路质量。

公开(公告)号：WO2010083076A1

公开(公告)日：2010-07-22

申请号：PCT/US2010/020201

申请日：2010-01-06

Applicant: ENTROPIC COMMUNICATIONS, INC. ,  MUELLER, Arndt

Inventor： MUELLER, Arndt

IPC: H04L27/26

CPC classification number: H04L27/28 ,  H04L25/0202 ,  H04L27/2607 ,  H04L27/2647

Abstract: Various systems and methods are provided for channel estimation. These systems and methods (a) determine a coherence bandwidth for the channel, (b) adapt the channel estimation based on the coherence bandwidth, and (c) perform channel estimation by transmitting a channel estimation symbol over a channel. In some embodiments, the channel estimation is adapted based on the coherence bandwidth. This may include selecting a number of channel estimation symbols to transmit in a packet. Additionally, the number of channel estimation symbols transmitted in a packet can be selected by increasing the number of channel estimation symbols when the coherence bandwidth of the channel is high or decreasing the number of channel estimation symbols when the coherence bandwidth of the channel is low.

Abstract translation: 提供各种系统和方法用于信道估计。 这些系统和方法（a）确定信道的相干带宽，（b）基于相干带宽适应信道估计，以及（c）通过在信道上发送信道估计符号来执行信道估计。 在一些实施例中，基于相干带宽来调整信道估计。 这可以包括选择在数据包中传输的多个信道估计符号。 此外，当信道的相干带宽高时，可以通过增加信道估计符号的数量来选择分组中发送的信道估计符号的数量，或者当信道的相干带宽低时，减少信道估计符号的数量。

公开(公告)号：WO2009123915A1

公开(公告)日：2009-10-08

申请号：PCT/US2009/038468

申请日：2009-03-26

Applicant: QUALCOMM INCORPORATED ,  RANGAN, Sundeep ,  MAHARSHI, Atul ,  LANE, Frank ,  KOYMEN, Ozge

Inventor： RANGAN, Sundeep ,  MAHARSHI, Atul ,  LANE, Frank ,  KOYMEN, Ozge

IPC: H04B1/00 ,  H04L27/26

CPC classification number: H04J11/00 ,  H04L5/14 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/28

Abstract: Apparatus and methods for updating symbol information in a communication device with hardware such as a microcontroller are disclosed. The disclosed apparatus and methods employ waiting for the beginning of a symbol in a sample stream at a predetermined time. One or more programmed instructions are read at the beginning of the symbol, and then symbol information is updated based on the one or more programmable instructions and setting a time for a beginning of a next symbol. The programmed instructions consist of instruction code words that are executed by a dedicated microcontroller or similar hardware, which affords flexibility for updating symbol information, particularly for multimode communication devices operable across multiple communication technologies.

Abstract translation: 公开了一种用诸如微控制器等硬件在通信设备中更新符号信息的装置和方法。 所公开的装置和方法在预定时间内等待样品流中符号的开始。 在符号的开始处读取一个或多个编程的指令，然后基于一个或多个可编程指令更新符号信息，并为下一个符号的开始设置一个时间。 编程指令由专用微控制器或类似硬件执行的指令代码字组成，其提供了更新符号信息的灵活性，特别是对于跨多种通信技术可操作的多模式通信设备。

公开(公告)号：WO2008137994A1

公开(公告)日：2008-11-13

申请号：PCT/US2008/063074

申请日：2008-05-08

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  HAGHIGHAT, Afshin ,  LI, Yingxue

Inventor： HAGHIGHAT, Afshin ,  LI, Yingxue

IPC: H04L1/06 ,  H04L5/02 ,  H04L27/26

CPC classification number: H04L27/28 ,  H04B1/38 ,  H04L1/0606 ,  H04L5/0023

Abstract: A method and apparatus of reducing interference in space frequency block coding (SFBC) communication are disclosed. SFBC encoding is performed on at least one pair of symbols. The symbols are assigned to subcarriers in accordance with a frequency assignment pattern assigned to a cell. Different frequency assignment patterns are assigned to neighboring cells. Cells in the network may be divided into a plurality of groups and a different frequency assignment pattern may be assigned to each group of cells. The frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are interlaced to subcarriers mapped to a pair of symbols in a neighbor cell. Alternatively, the frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are shifted in a neighbor cell.

Abstract translation: 公开了减少空间频率块编码（SFBC）通信中的干扰的方法和装置。 对至少一对符号执行SFBC编码。 根据分配给单元的频率分配模式，将符号分配给子载波。 不同的频率分配模式被分配给相邻小区。 网络中的小区可以被划分成多个组，并且可以将不同的频率分配模式分配给每组小区。 可以定义频率分配模式，使得映射到一个小区中的一对符号的副载波被隔行扫描到映射到相邻小区中的一对符号的副载波。 或者，可以定义频率分配模式，使得映射到一个小区中的一对符号的副载波在相邻小区中移位。

公开(公告)号：WO2008076027A1

公开(公告)日：2008-06-26

申请号：PCT/SE2006/050612

申请日：2006-12-21

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  KARLSSON, Jonas B.

Inventor： KARLSSON, Jonas B.

IPC: H04L1/06 ,  H04L27/26

CPC classification number: H04L27/28 ,  H04L1/0606 ,  H04L1/0618 ,  H04L5/0044

Abstract: The present invention relates to a method and arrangement for symbol mapping in wireless communication systems utilizing OFDM transmission technology in combination with advanced coding schemes. In the method according to the present invention, adapted for use in a wireless communication system utilising OFDM transmission technology, an OFDM grid is defined by at least a first dimension and a second dimensions from the dimensions time, frequency or space. The advanced coding scheme, for example Alamouti coding, outputs symbols that are related via the coding. At least some of the symbols, defining a code related symbol group should experience identical, or at least very similar, radio channels. According to one embodiment of the present invention, symbols from the same code related symbol group is placed as close together in the OFDM grid as possible.

Abstract translation: 本发明涉及利用OFDM传输技术的无线通信系统中的符号映射的方法和装置，并结合先进的编码方案。 在根据本发明的方法中，适用于利用OFDM传输技术的无线通信系统中，从尺寸时间，频率或空间的至少第一维度和第二维度来定义OFDM网格。 高级编码方案，例如Alamouti编码，输出通过编码相关的符号。 定义代码相关符号组的至少一些符号应该经历相同或至少非常相似的无线电信道。 根据本发明的一个实施例，来自相同代码相关符号组的符号尽可能地放置在OFDM网格中。

公开(公告)号：WO2003071682A2

公开(公告)日：2003-08-28

申请号：PCT/US2003/005309

申请日：2003-02-20

Applicant: GENERAL ATOMICS

Inventor： WALKER, Michael, L. ,  ROGERSON, Gerald, D. ,  GEHRING, Stephan, W.

IPC: H03M

CPC classification number: H04L27/2602 ,  H04B1/7163 ,  H04B1/719 ,  H04L1/08 ,  H04L1/20 ,  H04L5/06 ,  H04L27/28

Abstract: A method and apparatus for signal detection and error detection in a multi-band system, the method for error detection comprising the steps: receiving a plurality of bursts, each burst occupying at least one of a plurality of frequency bands, the plurality of bursts encoding a symbol, the symbol corresponding to data, wherein the symbol is encoded such that a burst occupying each frequency band is transmitted a specified number of times within the plurality of bursts; determining that a given burst has not been detected the specified number of times; and declaring a transmission error for the symbol. In one variation, the frequency bands comprise wideband frequency bands.

Abstract translation: 一种用于多频带系统中的信号检测和误差检测的方法和装置，所述误差检测方法包括以下步骤：接收多个脉冲串，每个脉冲串占据多个频带中的至少一个，所述多个脉冲串编码 符号，对应于数据的符号，其中所述符号被编码，使得占用每个频带的突发在所述多个突发内发送指定次数; 确定给定的突发没有被检测到指定的次数; 并声明符号的传输错误。 在一个变型中，频带包括宽带频带。

公开(公告)号：WO99039464A3

公开(公告)日：1999-11-04

申请号：PCT/IL1999/000044

申请日：1999-01-25

IPC: H04B10/50 ,  H04B10/556 ,  H04K1/00 ,  H04L27/28 ,  H04B10/155

CPC classification number: H04L27/28 ,  H04B10/505 ,  H04B10/5055 ,  H04B10/5563 ,  H04K1/003

Abstract: The invention provides, in a system for effecting information security in an optical communication network, an optical data encryptor including first input means for receiving information signals to be transmitted over said communication network; a frequency-to-frequency coding means for coding the information received and for transforming the coded information into a stream of differential frequency shift keying (DFSK) signals; second input means for receiving key signals; a frequency modulation unit for receiving the DFSK stream and the key signals, for matching each signal of the DFSK stream with m key signals, and for dividing the matched stream into sets of n signals each, where m and n are positive integers; and a combiner for combining the sets, to be utilized for modulating optical transmitting means prior to effecting encrypted optical transmission over the communication network.

Abstract translation: 本发明涉及用于负责光通信网络中的信息安全的系统的光数据加密模块。 该光学数据加密模块包括第一和第二输入部件，频率编码器，调频器和组合器。 第一个输入设备确保接收所考虑的通信网络发送的信息信号。 频率编码器提供接收到的信息的编码和将编码信息转换成频移差分调制（MDDF）信号流。 第二输入成员提供键信号的接收。 接收MDDF信号序列和关键信号的调频器一方面对应于MDDF信号的每个信号，训练m个关键信号，另一方面将列车以及 匹配成每组n个信号，m和n是正整数。 组合器确保组合。 在由通信网络加密的光传输之前，该加密模块干预光传输元件的调制。

公开(公告)号：WO99000956A1

公开(公告)日：1999-01-07

申请号：PCT/EP1998/003085

申请日：1998-05-26

IPC: G02B6/02 ,  G02B6/032 ,  H04B10/12 ,  H04L27/28

CPC classification number: H04L27/28 ,  H04B10/2504

Abstract: The invention relates to a message transmission system with frequency dividing optical components. According to the invention, light pulses with different frequencies are coupled out of an optical fibre by means of fibre grating and/or photoionic crystals and imaged by focusing elements outside of the optical fibre. The fibre grating for different frequencies can be arranged in a single period or in different successive periods. The photoionic crystals can be used at the end of the optical fibre or can be etched into a channel or pit in a glass fibre. Additional delay elements ensure that light pulses with different frequencies are imaged at the same time in a predetermined chosen time ratio, in accordance with a parallel reprocessing stage.

Abstract translation: 本发明涉及一种具有其中光脉冲通过光纤光栅和/或光纤的光子晶体加上不同的频率和通过聚焦光纤外成像frequenzaufteilenden光学部件的光通信系统。 光纤光栅不同的频率可被布置在单个周期或在一排不同时期。 光子晶体可用于或在光纤的端部被蚀刻到在光纤信道或坑。 通过附加的延迟元件将确保不同频率的光脉冲在预定的时间比率同时成像，并按照并行处理所需的。