中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

76 records (took 0.024 seconds)

    MIMO WIRELESS COMMUNICATION METHOD AND APPARATUS FOR TRANSMITTING AND DECODING RESOURCE BLOCK STRUCTURES BASED ON A DEDICATED REFERENCE SIGNAL MODE
    34.
    发明申请
    MIMO WIRELESS COMMUNICATION METHOD AND APPARATUS FOR TRANSMITTING AND DECODING RESOURCE BLOCK STRUCTURES BASED ON A DEDICATED REFERENCE SIGNAL MODE 审中-公开
    基于专用参考信号模式的MIMO无线通信方法和装置发送和解码资源块结构

    公开(公告)号：WO2008115588A3

    公开(公告)日：2008-11-13

    申请号：PCT/US2008003777

    申请日：2008-03-20

    Applicant: INTERDIGITAL TECH CORP ,  PAN KYLE JUNG-LIN ,  GRIECO DONALD M

    Inventor： PAN KYLE JUNG-LIN ,  GRIECO DONALD M

    IPC: H04L27/26 ,  H04L25/02

    CPC classification number: H04L25/0224 ,  H04B7/0413 ,  H04B7/0426 ,  H04B7/0456 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0096 ,  H04L25/0228 ,  H04L25/03343 ,  H04L27/2647 ,  H04W28/04

    Abstract: The transmission and decoding of resource blocks (RBs) transmitted via a multiple-input multiple-output (MIMO) antenna having a plurality of transmit antennas is disclosed. Each RB includes a plurality of resource elements (REs). Each RE is reserved for one of a common reference signal (CRS) associated with one of the transmit antennas, a dedicated reference signal (DRS) including a single beamformed or precoded pilot, a DRS including a composite beamformed or precoded pilot, and a data symbol. Each RB may include a "control type" data symbol that indicates a DRS mode associated with the RB. In one DRS mode, each DRS includes a single beamformed or precoded pilot. In another DRS mode, each DRS includes a composite beamformed or precoded pilot. In yet another DRS mode, single beamformed or precoded pilots, and composite beamformed or precoded pilots, may coexist and be transmitted simultaneously within the same RBs or in different RBs.

    Abstract translation: 公开了通过具有多个发射天线的多输入多输出（MIMO）天线发送的资源块（RB）的传输和解码。 每个RB包括多个资源元素（RE）。 每个RE被保留用于与发射天线中的一个相关联的公共参考信号（CRS）之一，包括单个波束形成或预编码导频的专用参考信号（DRS），包括复合波束形成或预编码导频的DRS和数据 符号。 每个RB可以包括指示与RB相关联的DRS模式的“控制类型”数据符号。 在一个DRS模式中，每个DRS包括单个波束形成或预编码的导频。 在另一种DRS模式中，每个DRS包括复合波束形成或预编码导频。 在另一个DRS模式中，单个波束形成或预编码导频以及复合波束形成或预编码导频可以在相同的RB或不同的RB内共存并同时传输。

    METHOD AND APPARATUS FOR PERFORMING UPLINK TRANSMISSION IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
    36.
    发明申请
    METHOD AND APPARATUS FOR PERFORMING UPLINK TRANSMISSION IN A MULTIPLE-INPUT MULTIPLE-OUTPUT SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
    用于在多输入多输出单载波频分多址接入系统中执行上行链路传输的方法和装置

    公开(公告)号：WO2007095102A1

    公开(公告)日：2007-08-23

    申请号：PCT/US2007/003526

    申请日：2007-02-08

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Jung-Lin ,  GRIECO, Donald, M. ,  OLESEN, Robert, Lind ,  LI, Yingxue

    Inventor： PAN, Jung-Lin ,  GRIECO, Donald, M. ,  OLESEN, Robert, Lind ,  LI, Yingxue

    IPC: H04L1/00 ,  H04B7/06 ,  H04L5/02 ,  H04L27/26

    CPC classification number: H04L27/2601 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0618 ,  H04L1/0668 ,  H04L5/023

    Abstract: A method and apparatus for performing uplink transmission in a multiple-input multiple-output (MIMO) single carrier frequency division multiple access (SC-FDMA) system are disclosed. At a wireless transmit/receive unit (WTRU), input data is encoded and parsed into a plurality of data streams. After modulation and Fourier transform, one of transmit beamforming, space time coding (STC) and spatial multiplexing is selectively performed based on channel state information. Symbols are then mapped to subcarriers and transmitted via antennas. The STC may be space frequency block coding (SFBC) or space time block coding (STBC). Per antenna rate control may be performed on each data stream based on the channel state information. At a Node-B, MIMO decoding may be performed based on one of minimum mean square error (MMSE) decoding, MMSE-successive interference cancellation (SIC) decoding and maximum likelihood (ML) decoding. Space time decoding may be performed if STC is performed at the WTRU.

    Abstract translation: 公开了一种用于在多输入多输出（MIMO）单载波频分多址（SC-FDMA）系统中执行上行链路传输的方法和装置。 在无线发射/接收单元（WTRU）处，输入数据被编码并解析成多个数据流。 在调制和傅里叶变换之后，基于信道状态信息选择性地执行发射波束形成，空间时间编码（STC）和空间复用之一。 然后将符号映射到子载波并经天线发送。 STC可以是空间频率块编码（SFBC）或空间时间块编码（STBC）。 可以基于信道状态信息对每个数据流执行每个天线速率控制。 在节点B处，可以基于最小均方误差（MMSE）解码，MMSE连续干扰消除（SIC）解码和最大似然（ML）解码）之一来执行MIMO解码。 如果在WTRU处执行STC，则可以执行空时解码。

    GENERALIZED TWO-STAGE DATA ESTIMATION
    38.
    发明申请
    GENERALIZED TWO-STAGE DATA ESTIMATION 审中-公开
    一般两阶段数据估计

    公开(公告)号：WO2004064298A3

    公开(公告)日：2005-03-17

    申请号：PCT/US2004000463

    申请日：2004-01-08

    Applicant: INTERDIGITAL TECH CORP ,  PAN JUNG-LIN ,  HUANG YUEJIN ,  GRIECO DONALD M

    Inventor： PAN JUNG-LIN ,  HUANG YUEJIN ,  GRIECO DONALD M

    IPC: H04B1/707

    CPC classification number: H04B1/71052 ,  H04B1/71055 ,  H04B2201/70707 ,  H04L25/0206 ,  H04L25/0246

    Abstract: Symbols are to be recovered from signals received in a shared spectrum. Codes of the signals received in the shared spectrum are processed using a block Fourier transform (FT 34), producing a code block diagonal matrix. A channel response of the received signals is estimated. The channel response is extended and modified (36) to produce a block circulant matrix and a block FT (38) is taken, producing a channel response block diagonal matrix. The code block diagonal matrix is combined (40, 44, 46) with the channel response block diagonal matrix. The received signals are sampled and processed using the combined code block diagonal matrix and the channel response block diagonal matrix with a Cholesky algorithm. A block inverse FT (60) is performed on a result of the Cholesky algorithm to produce spread symbols. The spread symbols are despread to recover symbols of the received signals.

    Abstract translation: 符号将从在共享频谱中接收的信号中恢复。 使用块傅里叶变换（FT 34）处理在共享频谱中接收的信号的码，产生码块对角矩阵。 估计接收信号的信道响应。 信道响应被扩展和修改（36）以产生块循环矩阵，并且采用块FT（38），产生信道响应块对角矩阵。 码块对角矩阵与信道响应块对角矩阵组合（40,44,46）。 使用Cholesky算法使用组合码块对角矩阵和信道响应块对角矩阵对接收到的信号进行采样和处理。 对Cholesky算法的结果执行块反向FT（60）以产生扩展符号。 扩展符号被解扩以恢复接收信号的符号。

    METHOD FOR SOFT AND SOFTER HANDOVER IN TIME DIVISION DUPLEX CODE DIVISION MULTIPLE ACCESS (TDD-CDMA) NETWORKS
    40.
    发明申请
    METHOD FOR SOFT AND SOFTER HANDOVER IN TIME DIVISION DUPLEX CODE DIVISION MULTIPLE ACCESS (TDD-CDMA) NETWORKS 审中-公开
    时分双工代码段多路访问（TDD-CDMA）网络中软和非法切换的方法

    公开(公告)号：WO2004102616A2

    公开(公告)日：2004-11-25

    申请号：PCT/US2004/011606

    申请日：2004-04-16

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  GRIECO, Donald, M.

    Inventor： GRIECO, Donald, M.

    IPC: H01L

    CPC classification number: H04L1/0056 ,  H04B1/7105 ,  H04B2201/70702 ,  H04L1/0046 ,  H04L1/0047 ,  H04L25/0208 ,  H04W36/18

    Abstract: A wireless communication system, method and apparatus are provided for soft and softer handover of a mobile wireless transmit/receive unit (WTRU) between two or more base stations and/or base station sectors. A network control unit assigns selected base stations to transmit communication data to the WTRU based on the WTRU being disposed in base station or base station sector geographic range of service. A WTRU joint detector (JD) receiver is configured to receive and process one or more wireless data signals in each of a series of timeframes where each signal received within a common timeslot has a unique channel encoding of the same communication data. The JD receiver has a plurality of channel estimators that estimate received signals within a common timeslot and a combiner configured to decode and combine the channel estimates to derive a resultant data signal.

    Abstract translation: 提供了一种用于在两个或多个基站和/或基站扇区之间的移动无线发射/接收单元（WTRU）的软和更软切换​​的无线通信系统，方法和装置。 网络控制单元基于在基站或基站扇区地理服务范围中布置的WTRU来分配所选择的基站以将通信数据发送到WTRU。 WTRU联合检测器（JD）接收器被配置为在一系列时间帧中的每一个中接收和处理一个或多个无线数据信号，其中在公共时隙内接收的每个信号具有相同通信数据的唯一信道编码。 JD接收机具有估计公共时隙内的接收信号的多个信道估计器，以及被配置为对信道估计进行解码和组合以导出结果数据信号的组合器。

Patent Agency Ranking