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253 条记录 (耗时 0.02 秒)

    CODAGE SPATIO-TEMPOREL POUR SYSTEME COOPERATIF
    33.
    发明公开
    CODAGE SPATIO-TEMPOREL POUR SYSTEME COOPERATIF 有权
    空时码的协同系统

    公开(公告)号：EP2191583A1

    公开(公告)日：2010-06-02

    申请号：EP08838155.3

    申请日：2008-09-05

    申请人： FRANCE TELECOM

    发明人： SAADANI, Ahmed ,  HUCHER, Charlotte ,  REKAYA, Ghaya

    IPC分类号： H04B7/02 ,  H04L1/06 ,  H04L25/20

    CPC分类号： H04L1/0643 ,  H04B7/15592 ,  H04L1/0631 ,  H04L2001/0097

    摘要： A cooperative system includes a source node (SC), N relay nodes (R1-RN) and a destination node (DS). The source node encodes information symbols by combining said symbols in the form of encoded elements distributed in a space-time matrix, the encoded elements from each of the rows and columns of the matrix depending respectively on the combinations of said symbols. The source node then transmits the N first lines of encoded elements to the N relay nodes and the destination node and subsequently the N last lines of encoded elements to the destination node. Each relay node corrects one of the N first lines in the form of a corrected line and transmits same to the destination node.

    METHOD AND SYSTEM FOR WIRELESS COMMUNICATION IN MULTIPLE OPERATING ENVIRONMENTS
    37.
    发明公开
    METHOD AND SYSTEM FOR WIRELESS COMMUNICATION IN MULTIPLE OPERATING ENVIRONMENTS 审中-公开
    方法和系统无线通信有多个不同的操作环境

    公开(公告)号：EP2070301A2

    公开(公告)日：2009-06-17

    申请号：EP07873344.1

    申请日：2007-08-08

    申请人： Nortel Networks Limited

    发明人： MA, Jianglei ,  FONG, Mo-Han ,  ZHANG, Hang ,  LI, Jun ,  JIA, Ming ,  ZHU, Peiying ,  TONG, Wen

    IPC分类号： H04M1/00

    CPC分类号： H04W76/15 ,  H04J11/0069 ,  H04L1/0643 ,  H04L27/2626 ,  H04L27/34 ,  H04W28/18 ,  H04W48/18 ,  H04W88/06 ,  H04W88/10 ,  H04W88/18

    摘要： A wireless communication method and system are provided. A first wireless communication numerology, e.g., OFDM operating parameters, corresponding to a first operational mode is established. A second wireless communication numerology corresponding to a second operational mode is also established. The first wireless communication numerology is different than the second wireless communication numerology. One of the first operational mode and the second operational mode is selected. One of the first wireless communication numerology and the second wireless communication numerology corresponding the selected operational mode is used in which communication in the first operational mode and the second operational mode use substantially similar synchronization channels. The present invention also uses the same superframe structure for the first and second operational modes for Ultra-Mobile Broadband ("UMB") networks and the same frame structure for the first and second operational modes for Long Term Evolution ("LTE") networks.

    CODE DESIGN AND IMPLEMENTATION IMPROVEMENTS FOR LOW DENSITY PARITY CHECK CODES FOR MULTIPLE-INPUT MULTIPLE-OUTPUT CHANNELS
    38.
    发明公开
    CODE DESIGN AND IMPLEMENTATION IMPROVEMENTS FOR LOW DENSITY PARITY CHECK CODES FOR MULTIPLE-INPUT MULTIPLE-OUTPUT CHANNELS 有权
    CODEENTWURFS-与实现IMPROVEMENTS低密度奇偶校验用于与多输入多输出信道

    公开(公告)号：EP1790083A4

    公开(公告)日：2009-04-29

    申请号：EP05789316

    申请日：2005-08-03

    申请人： DIRECTV GROUP INC

    发明人： EROZ MUSTAFA ,  LEE LIN-NAN ,  SUN FENG-WEN

    IPC分类号： H03M13/11 ,  H04L1/00

    CPC分类号： H03M13/1165 ,  H03M13/1137 ,  H03M13/1185 ,  H03M13/15 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2906 ,  H03M13/6561 ,  H04B7/0413 ,  H04L1/0048 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0625 ,  H04L1/0643

    摘要： Methods and systems for designing LDPC codes (102) are disclosed. A method in accordance with the present invention comprises configuring a plurality of parallel accumulation engines (500), a number of the plurality of parallel accumulation engines (500) equal to M, accumulating a first information bit at a first set of specific parity bit addresses (502) using the plurality of parallel accumulation engines (500), increasing a parity bit address (504) for each member of the first set of specific parity bit addresses by a pre-determined offset for each new information bit, accumulating subsequent information bits at parity bit addresses that are offset from the specific parity bit addresses by a pre-determined offset until an M+1 information bit is reached (506), accumulating the next M information bits at a second set of specific parity bit addresses using the plurality of parallel accumulation engines (508), increasing a parity bit address for each member of the second set of specific parity bit addresses by the pre-determined offset for each new information bit (510); and repeating accumulating and increasing the addresses until the information bits are exhausted (512).

    MULTIANTENNA COMMUNICATION APPARATUS AND MULTIANTENNA COMMUNICATION SYSTEM
    39.
    发明公开
    MULTIANTENNA COMMUNICATION APPARATUS AND MULTIANTENNA COMMUNICATION SYSTEM 审中-公开
    MEHRANTENNENKOMMUNIKATIONSGERÄTUND -ANORDNUNG

    公开(公告)号：EP1879315A1

    公开(公告)日：2008-01-16

    申请号：EP06746866.0

    申请日：2006-05-25

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： SHE, Xiaoming Panasonic R&D Center China Co.,Ltd ,  LI, Jifeng Panasonic Mobile Communications Co.,Ltd

    IPC分类号： H04J11/00 ,  H04J15/00

    CPC分类号： H04L1/0643 ,  H04L1/0631 ,  H04L25/0206 ,  H04L27/2601

    摘要： A multiantenna communication system comprises a determining part (116) that calculates correlation values each between the channel characteristics of the resource blocks in an STBC (Space Time Block Code) and determines a combination pattern exhibiting the highest correlation; a connection distributing part (103) that maps, into a time domain, a frequency domain and a spatial domain, the STBC encoded transport data in accordance with the combination pattern determined by the determining part; a plurality of transmission antennas (107) for transmitting respective signals associated therewith; a plurality of reception antennas (108) for receiving the signals transmitted from the transmission antennas; and a connection multiplexing part (113) that extracts the signals, whichbelong to the same STBC, from the signals mapped into the time domain, frequency domain and spatial domain in accordance with the combination pattern determined by the determining part, and then combines the data blocks.

    摘要翻译： 多天线通信系统包括：计算STBC（空时块码）中的资源块的信道特性之间的相关值的确定部（116），并确定表现出最高相关性的组合模式; 根据由确定部确定的组合模式将连接分发部（103）映射到时域中的频域和空域，STBC编码传输数据; 用于发送与其相关联的各个信号的多个发送天线（107） 多个接收天线（108），用于接收从发送天线发送的信号; 以及连接多路复用部（113），其根据由确定部确定的组合模式，从与映射到时域，频域和空间域的信号中提取与同一STBC相符的信号，然后组合数据 块。