公开(公告)号：WO2010002964A3

公开(公告)日：2010-03-18

申请号：PCT/US2009049363

申请日：2009-07-01

Applicant: INTERDIGITAL PATENT HOLDINGS ,  PAN KYLE JUNG-LIN ,  GRIECO DONALD M ,  OLESEN ROBERT L

Inventor： PAN KYLE JUNG-LIN ,  GRIECO DONALD M ,  OLESEN ROBERT L

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0486 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0639 ,  H04L1/0026 ,  H04L5/0091 ,  H04L43/00 ,  H04W24/02 ,  H04W72/0413

Abstract: A method and apparatus for measuring and reporting a rank and/or a precoding matrix for multiple -input multiple -output (MIMO) communication are disclosed. A metric indicating a channel condition is measured and a rank is selected based on the metric. The metric may be a signal-to-interference and noise ratio (SINR), throughput, a block error rate (BLER), system capacity, a sum rate, or the like. An SINR for each radio block group (RBG) for each rank is calculated. A data rate is calculated for each RBG based on the SINR for each rank. An overall rate for all RBGs is calculated for each rank. At least one rank is selected based on the overall rate. At least one precoding matrix may be selected jointly with or separately from the at least one rank.

Abstract translation: 公开了一种用于测量和报告用于多输入多输出（MIMO）通信的秩和/或预编码矩阵的方法和装置。 测量指示信道条件的度量，并且基于度量来选择秩。 该度量可以是信号与干扰和噪声比（SINR），吞吐量，块错误率（BLER），系统容量，和速率等。 计算每个等级的每个无线电块组（RBG）的SINR。 基于每个等级的SINR计算每个RBG的数据速率。 对每个等级计算所有RBG的总体利率。 基于总体速率选择至少一个等级。 至少一个预编码矩阵可以与至少一个等级联合或分开选择。

公开(公告)号：WO2010002691A2

公开(公告)日：2010-01-07

申请号：PCT/US2009/048611

申请日：2009-06-25

Applicant: INTERDIGITAL PATENT HOLDINGS, INC. ,  BALA, Erdem ,  PAN, Kyle, Jung-Lin ,  GRIECO, Donald, M. ,  PIETRASKI, Philip, J. ,  SHIN, Sung-Hyuk

Inventor： BALA, Erdem ,  PAN, Kyle, Jung-Lin ,  GRIECO, Donald, M. ,  PIETRASKI, Philip, J. ,  SHIN, Sung-Hyuk

IPC: H04L25/03

CPC classification number: H04L25/03343 ,  H04B7/0417 ,  H04B7/0478 ,  H04B7/0626 ,  H04L5/0023 ,  H04L25/0248 ,  H04L2025/03426 ,  H04L2025/03808

Abstract: A method and an apparatus for performing multiple-input multiple-output (MIMO) wireless communications are disclosed. A Node-B may receive an index to a pre-coding matrix in a single user MIMO (SU-MIMO) pre-coding codebook from wireless transmit/receive units (WTRUs) and adaptively perform one of SU-MIMO or multi-user MIMO (MU-MIMO) based on a predetermined criterion. Channel information for performing MU-MIMO may be obtained based on the pre-coding matrix of the SU-MIMO pre-coding codebook. A rank requested by the WTRU may be overridden if the unitary MU-MIMO codebook is a subset of the SU-MIMO pre-coding codebook. If not, a MU-MIMO pre-coding matrix with a largest correlation to the pre-coding matrix may be selected. A WTRU may send a pre-coding matrix for transmission to the WTRU along with a preferred interference matrix. A WTRU may send rank information and multiple right singular vectors for MU-MIMO.

Abstract translation: 公开了一种用于执行多输入多输出（MIMO）无线通信的方法和装置。 节点B可以从无线发射/接收单元（WTRU）接收单用户MIMO（SU-MIMO）预编码码本中的预编码矩阵的索引，并且自适应地执行SU-MIMO或多用户MIMO （MU-MIMO）。 可以基于SU-MIMO预编码码本的预编码矩阵来获得用于执行MU-MIMO的信道信息。 如果单一MU-MIMO码本是SU-MIMO预编码码本的子集，那么由WTRU请求的等级可以被覆盖。 如果不是，则可以选择与预编码矩阵具有最大相关性的MU-MIMO预编码矩阵。 WTRU可以发送用于传输到WTRU的预编码矩阵以及优选的干扰矩阵。 WTRU可以发送用于MU-MIMO的秩信息和多个右奇异向量。

公开(公告)号：WO2009061664A2

公开(公告)日：2009-05-14

申请号：PCT/US2008081842

申请日：2008-10-30

Applicant: INTERDIGITAL PATENT HOLDINGS ,  LI YINGXUE ,  GRIECO DONALD M ,  OLESEN ROBERT L

Inventor： LI YINGXUE ,  GRIECO DONALD M ,  OLESEN ROBERT L

IPC: H04L25/03

CPC classification number: H04L25/03343 ,  H04B7/0413 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/063 ,  H04L2025/03802

Abstract: Apparatus and method of generating a long term evolution (LTE) codebook and performing rank overriding are disclosed. Reordering rules are presented, whereby a second column vector of each rank-4 precoding matrix will not appear in column vectors of a rank-3 precoding matrix, and the first column vector of each rank-4 precoding matrix is identical to the first column vector of the corresponding rank-3 precoding matrix. Furthermore, precoder hopping between two precoding matrices corresponding to a particular precoding matrix index (PMI) is implemented, whereby a first one of the two precoding matrices comprises a first subset of column vectors of an original precoding matrix that corresponds to the particular PMI, and a second one of the two precoding matrices comprises a second subset of column vectors of the original precoding matrix. The precoder hopping is performed in time and/or frequency domain.

Abstract translation: 公开了生成长期演进（LTE）码本并执行秩超越的设备和方法。 呈现重新排序规则，由此每个第4级预编码矩阵的第二列向量将不出现在第3级预编码矩阵的列向量中，并且每一第4级预编码矩阵的第一列向量与第一列向量相同 对应的秩为3的预编码矩阵。 此外，实现了对应于特定预编码矩阵索引（PMI）的两个预编码矩阵之间的预编码器跳变，由此两个预编码矩阵中的第一个预编码矩阵包括对应于特定PMI的原始预编码矩阵的列向量的第一子集，以及 两个预编码矩阵中的第二个包括原始预编码矩阵的列向量的第二子集。 预编码跳频在时间和/或频域执行。

公开(公告)号：WO2008021396A9

公开(公告)日：2009-05-14

申请号：PCT/US2007018064

申请日：2007-08-15

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

Inventor： PAN KYLE JUNG-LIN ,  OLESEN ROBERT L ,  GRIECO DONALD M

IPC: H04B7/06 ,  H04L1/06

CPC classification number: H04B7/0663 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/066 ,  H04L1/0687

Abstract: Precoding feedback scheme based on Jacobi rotations to generate the feedback in the uplink. For a wireless communication system including a transmitter and a receiver. The system may use either a single codeword (SOW) or a double codeword (DCW). The precoding scheme is based on transmit beamforming (TxBF). Differential feedback is considered, with periodic non-differential feedback to avoid error accumulation or propagation due to differential processing. Precoding feedback scheme based on Jacobi rotations to generate the feedback in the uplink. For a wireless communication system including a transmitter and a receiver. The system may use either a single codeword (SOW) or a double codeword (DCW). The precoding scheme is based on transmit beamforming (TxBF). Differential feedback is considered, with periodic non-dif f erential feedback to avoid error accumulation or propagation due to differential processing.

Abstract translation: 基于Jacobi旋转的预编码反馈方案在上行链路中生成反馈。 对于包括发射机和接收机的无线通信系统。 该系统可以使用单个码字（SOW）或双码字（DCW）。 预编码方案基于发射波束成形（TxBF）。 考虑差分反馈，具有周期性非差分反馈，以避免由于差分处理而导致的误差积累或传播。 基于Jacobi旋转的预编码反馈方案在上行链路中生成反馈。 对于包括发射机和接收机的无线通信系统。 该系统可以使用单个码字（SOW）或双码字（DCW）。 预编码方案基于发射波束成形（TxBF）。 考虑差分反馈，具有周期性的非差异反馈，以避免由差分处理引起的误差积累或传播。

公开(公告)号：WO2009023700A2

公开(公告)日：2009-02-19

申请号：PCT/US2008/072976

申请日：2008-08-13

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Kyle Jung-lin ,  BALA, Erdem ,  LI, Yingxue ,  GRIECO, Donald, M. ,  OLESEN, Robert, L.

Inventor： PAN, Kyle Jung-lin ,  BALA, Erdem ,  LI, Yingxue ,  GRIECO, Donald, M. ,  OLESEN, Robert, L.

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0645 ,  H04B7/0697

Abstract: A wireless communication method and apparatus for creating a codebook in a multiple input/multiple output (MIMO) wireless communication system are disclosed. The method includes adapting a single user codebook, wherein the single user codebook comprises a plurality single user beamforming vectors, into a multi-user codebook, wherein the multi-user codebook comprises a plurality of multi-user beamforming vectors. The method further includes grouping the codebook into a plurality of unitary matrices, selecting a plurality of beamforming vectors from the plurality of unitary matrices, forming a rank specific code-book from the beamforming vectors and the unitary matrices, and selecting a subset of a total number of pairs to form the plurality of unitary matrices.

Abstract translation: 公开了一种用于在多输入/多输出（MIMO）无线通信系统中创建码本的无线通信方法和装置。 该方法包括将单用户码本适配成多用户码本，其中单用户码本包括多个单用户波束成形矢量，其中多用户码本包括多个多用户波束成形矢量。 该方法进一步包括将码本分组为多个酉矩阵，从多个酉矩阵中选择多个波束成形向量，从波束成形向量和酉矩阵形成秩特定码本，以及选择总和的子集 构成多个酉矩阵的对数。

公开(公告)号：WO2008112314A1

公开(公告)日：2008-09-18

申请号：PCT/US2008/003454

申请日：2008-03-14

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  GRIECO, Donald, M. ,  ZHANG, Guodong ,  OLESEN, Robert, L ,  TSAI, Allan, Y.

Inventor： GRIECO, Donald, M. ,  ZHANG, Guodong ,  OLESEN, Robert, L ,  TSAI, Allan, Y.

IPC: H04L5/02

CPC classification number: H04L5/023

Abstract: A method for transmitting feedback information for a wireless transmit receive unit (WTRU) includes multiplexing the feedback information with an uplink shared channel, mapping the multiplexed feedback information to OFDM symbols and transmitting the feedback information to an e Node B (eNB). The method also includes multiplexing the feedback information with the uplink shared channel using distributed frequency division multiplexing (FDM), mapping the feedback information to a first orthogonal frequency division multiplex (OFDM) symbol, and distributing the mapped feedback information equidistantly across the transmission bandwidth.

Abstract translation: 用于发送用于无线发射接收单元（WTRU）的反馈信息的方法包括：将所述反馈信息与上行链路共享信道进行复用，将所述多路复用的反馈信息映射到OFDM符号，并将所述反馈信息发送到e节点B（eNB）。 该方法还包括使用分布式频分多路复用（FDM）将反馈信息与上行链路共享信道进行多路复用，将反馈信息映射到第一正交频分复用（OFDM）符号，并将映射的反馈信息等距分布在传输带宽上。

公开(公告)号：WO2008109162A2

公开(公告)日：2008-09-12

申请号：PCT/US2008/003085

申请日：2008-03-07

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  SHIN, Sung-hyuk ,  LIN, Zinan ,  GRIECO, Donald, M. ,  OLESEN, Robert, L.

Inventor： SHIN, Sung-hyuk ,  LIN, Zinan ,  GRIECO, Donald, M. ,  OLESEN, Robert, L.

IPC: H04B7/005

CPC classification number: H04W52/242 ,  H04L1/1812 ,  H04W52/06 ,  H04W52/08 ,  H04W52/10 ,  H04W52/146 ,  H04W76/28

Abstract: A method and apparatus are disclosed comprising a combined open loop/closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx, (e.g. power per RB).

Abstract translation: 公开了一种用于E-UTRA的组合开环/闭环上行链路功率控制方案的方法和装置。 用于UL小区内PC的组合的开环和闭环方法控制无线发射接收单元（WTRU）发射功率谱密度（PSD），PSDTx（例如每RB的功率）。

公开(公告)号：WO2008045315A1

公开(公告)日：2008-04-17

申请号：PCT/US2007/021386

申请日：2007-10-05

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  WANG, Jin ,  TERRY, Stephen, E. ,  CHANDRA, Arty ,  TSAI, Allan, Y. ,  GRIECO, Donald, M.

Inventor： WANG, Jin ,  TERRY, Stephen, E. ,  CHANDRA, Arty ,  TSAI, Allan, Y. ,  GRIECO, Donald, M.

IPC: H04Q7/38

CPC classification number: H04W36/08 ,  H04W56/0045

Abstract: A method and apparatus for uplink synchronization during handover are disclosed. A wireless transmit/receive unit (WTRU) measures a downlink receipt timing difference between a source Node-B and a target Node-B. The WTRU calculates a target Node-B timing advance value based on the downlink receipt timing difference, a source Node-B timing advance value, and a relative downlink transmit timing difference between the target Node-B and the source Node-B. The WTRU then applies the target Node-B timing advance value in transmission to the target Node-B. The source Node-B may calculate the relative downlink transmit timing difference between the target Node-B and the source Node-B, and send it to the WTRU. The source Node-B may provide the source Node-B timing advance value more frequently during handover. The WTRU may measure the downlink receipt timing difference by averaging multiple first significant paths (FSPs) over a certain time window.

Abstract translation: 公开了一种在切换期间上行链路同步的方法和装置。 无线发射/接收单元（WTRU）测量源节点B和目标节点B之间的下行接收定时差。 WTRU基于目标节点B和源节点B之间的下行接收定时差，源节点B定时提前值和相对下行链路传输定时差来计算目标节点B定时提前值。 然后，WTRU将传输中的目标节点B定时提前值应用于目标节点B。 源节点B可以计算目标节点B和源节点B之间的相对下行链路传输定时差，并将其发送到WTRU。 源节点B可以在切换期间更频繁地提供源节点B定时提前值。 WTRU可以通过在特定时间窗口上平均多个第一有效路径（FSP）来测量下行链路接收定时差异。

公开(公告)号：WO2008021008A3

公开(公告)日：2008-04-10

申请号：PCT/US2007017227

申请日：2007-08-02

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

Inventor： GRIECO DONALD M ,  PAN KYLE JUNG-LIN

IPC: H04B7/04

CPC classification number: H04B7/0452 ,  H04B7/0617 ,  H04B7/0669 ,  H04B7/0671

Abstract: A method and system for implementing multi-user virtual multiple-input multiple-output (MIMO) techniques for wireless transmit/receive units (WTRUs) having one or more antennas are disclosed. The system includes a base station and at least one WTRU having at least two antennas. The number of antennas of the base station is not less than the number of antennas of any of the WTRUs. The base station generates a channel matrix for the WTRUs and processes received signals from the WTRUs based on a measurement of the channel matrix. The WTRUs may perform transmit precoding or eigen-beamforming using the channel matrix information. The WTRUs may also perform transmit diversity.

Abstract translation: 公开了一种用于实现具有一个或多个天线的无线发射/接收单元（WTRU）的多用户虚拟多输入多输出（MIMO）技术的方法和系统。 该系统包括基站和至少一个具有至少两个天线的WTRU。 基站的天线数量不小于任何WTRU的天线数量。 基站为WTRU生成信道矩阵，并基于信道矩阵的测量来处理来自WTRU的接收信号。 WTRU可以使用信道矩阵信息来执行发送预编码或特征波束成形。 WTRU还可以执行发射分集。

公开(公告)号：WO2007133564A2

公开(公告)日：2007-11-22

申请号：PCT/US2007/011148

申请日：2007-05-08

Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Kyle, Jung-lin ,  OLESEN, Robert, L. ,  GRIECO, Donald, M.

Inventor： PAN, Kyle, Jung-lin ,  OLESEN, Robert, L. ,  GRIECO, Donald, M.

CPC classification number: H04L25/03343 ,  H04B7/0456 ,  H04B7/0669 ,  H04B7/0673 ,  H04L2025/03426 ,  H04L2025/03808

Abstract: A wireless communication system includes a wireless transmit/receive unit (WTRU). The WTRU is configured to generate at least one local codebook based on a baseline codebook, and select a codeword from the local codebook that is associated with feedback.

Abstract translation: 无线通信系统包括无线发射/接收单元（WTRU）。 WTRU被配置为基于基准码本生成至少一个本地码本，并且从本地码本中选择与反馈相关联的码字。