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    Mimo beamforming-based single carrier frequency division multiple access system
    14.
    发明授权
    Mimo beamforming-based single carrier frequency division multiple access system 有权
    基于Mimo波束成形的单载波频分多址系统

    公开(公告)号：US09184808B2

    公开(公告)日：2015-11-10

    申请号：US14048020

    申请日：2013-10-07

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： Guodong Zhang ,  Kyle Jung-Lin Pan ,  Robert L. Olesen ,  Allan Y. Tsai

    IPC: H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L5/02 ,  H04L25/02 ,  H04L27/26

    CPC classification number: H04B7/0417 ,  H04B7/0617 ,  H04B7/086 ,  H04L5/023 ,  H04L25/0248 ,  H04L27/2601 ,  H04L27/2614 ,  H04L27/2647

    Abstract: A multiple-input multiple-output (MIMO) beamforming-based single carrier frequency division multiple access (SC-FDMA) system is disclosed. At the transmitter, a fast Fourier transform (FFT) is performed on transmission data to generate frequency domain data. The frequency domain transmit data is mapped to assigned subcarriers. An inverse fast Fourier transform (IFFT) is performed on the transmit data mapped to the assigned subcarriers to generate time domain transmit data. The time domain transmit data is transmitted via antennas. At a receiver, an FFT is performed on the received data to generate frequency domain received data. Subcarrier demapping is performed to extract data mapped on the assigned subcarriers. A channel estimator generates a channel matrix which is decomposed into U, D and VH matrices. A channel distortion and interference between transmit and receive antennas are equalized based on the decomposed channel matrices to the extracted frequency domain received data.

    Abstract translation: 公开了一种基于多输入多输出（MIMO）波束成形的单载波频分多址（SC-FDMA）系统。 在发射机上，对传输数据进行快速傅里叶变换（FFT）以产生频域数据。 频域发射数据被映射到分配的子载波。 对映射到所分配的子载波的发送数据执行快速傅里叶逆变换（IFFT），以生成时域发送数据。 时域发送数据通过天线发送。 在接收机处，对接收到的数据执行FFT以产生频域接收的数据。 执行子载波解映射以提取映射在所分配的子载波上的数据。 信道估计器生成分解为U，D和VH矩阵的信道矩阵。 基于分解的信道矩阵到提取的频域接收数据，发送和接收天线之间的信道失真和干扰被均衡。

    COMBINED OPEN LOOP/CLOSED LOOP (CQI-BASED) UPLINK TRANSMIT POWER CONTROL WITH INTERFERENCE MITIGATION FOR E-UTRA
    16.
    发明申请
    COMBINED OPEN LOOP/CLOSED LOOP (CQI-BASED) UPLINK TRANSMIT POWER CONTROL WITH INTERFERENCE MITIGATION FOR E-UTRA 有权
    用于E-UTRA的干扰减轻的组合的开环/闭环（基于CQI的）上行发射功率控制

    公开(公告)号：US20140086182A1

    公开(公告)日：2014-03-27

    申请号：US14091088

    申请日：2013-11-26

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： Sung-Hyuk Shin ,  Donald M. Grieco ,  Robert L. Olesen

    IPC: H04W52/24

    CPC classification number: H04W52/262 ,  H04L5/0057 ,  H04W52/08 ,  H04W52/10 ,  H04W52/146 ,  H04W52/241 ,  H04W52/242 ,  H04W52/243 ,  H04W52/246 ,  H04W52/265 ,  H04W52/286

    Abstract: A combined open loop and closed loop (channel quality indicator (CQI)-based) transmit power control (TPC) scheme with interference mitigation for a long term evolution (LTE) wireless transmit/receive unit (WTRU) is disclosed. The transmit power of the WTRU is derived based on a target signal-to-interference noise ratio (SINR) and a pathloss value. The pathloss value pertains to the downlink signal from a serving evolved Node-B (eNodeB) and includes shadowing. An interference and noise value of the serving eNodeB is included in the transmit power derivation, along with an offset constant value to adjust for downlink (DL) reference signal power and actual transmit power. A weighting factor is also used based on the availability of CQI feedback.

    Abstract translation: 公开了一种组合开环和闭环（基于信道质量指示符（CQI））的发射功率控制（TPC）方案，其具有用于长期演进（LTE）无线发射/接收单元（WTRU）的干扰减轻。 基于目标信号与干扰噪声比（SINR）和路径损耗值来导出WTRU的发射功率。 路径损耗值属于来自服务演进节点B（eNodeB）的下行链路信号，并且包括阴影。 服务eNodeB的干扰和噪声值包括在发射功率推导中，以及用于调整下行链路（DL）参考信号功率和实际发射功率的偏移常数值。 还基于CQI反馈的可用性来使用加权因子。

    METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL
    17.
    发明申请
    METHOD AND SYSTEM FOR SUPPORTING MULTIPLE HYBRID AUTOMATIC REPEAT REQUEST PROCESSES PER TRANSMISSION TIME INTERVAL 有权
    支持传输时间间隔的多个混合自动重传请求过程的方法和系统

    公开(公告)号：US20140071965A1

    公开(公告)日：2014-03-13

    申请号：US14082986

    申请日：2013-11-18

    Applicant: InterDigital Technology Corporation

    Inventor： Stephen E. Terry ,  Robert L. Olesen ,  Jin Wang ,  Arty Chandra

    IPC: H04L5/00

    CPC classification number: H04L1/1861 ,  H04B7/0413 ,  H04B7/0632 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/0446 ,  H04W88/08

    Abstract: A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs). When MIMO is implemented, one H-ARQ process may be associated with one MIMO stream, or codeword. The feedback may include a channel quality indicator (CQI) per MIMO stream or codeword. The control information and the feedback may be sent via a layer 1 or layer 2/3 control part.

    Abstract translation: 一种方法和装置可以用于支持每个传输时间间隔（TTI）的多个混合自动重复请求（H-ARQ）过程。 发射机和接收机可以包括多个H-ARQ过程。 每个H-ARQ过程可以每TTI发送和接收一个TB。 发射机可以生成多个TB并将每个TB分配给H-ARQ过程。 发射机可以发送每个TB的控制信息，其可以包括具有TB的H-ARQ信息相关联的TB。 发射机可以使用每个TTI同时使用相关的H-ARQ过程来发送TB。 在接收到TB之后，接收机可以向H-ARQ进程和相关联的TB中的每一个发送反馈，指示每个TB到发射机的成功或不成功的接收。 可以将多个TB的反馈组合用于同时发送的H-ARQ过程（即，TB）。 当实现MIMO时，一个H-ARQ过程可以与一个MIMO流或码字相关联。 反馈可以包括每个MIMO流或码字的信道质量指示符（CQI）。 控制信息和反馈可以经由层1或层2/3控制部分发送。

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