Multiple CQI feedback for cellular networks
    31.
    发明授权
    Multiple CQI feedback for cellular networks 有权
    蜂窝网络的多个CQI反馈

    公开(公告)号:US08711716B2

    公开(公告)日:2014-04-29

    申请号:US12819182

    申请日:2010-06-19

    IPC分类号: G01R31/08

    摘要: Single user and multiuser MIMO transmission in a cellular network may be performed by a base station (eNB) transmitting either one or two transmission layers. A user equipment (UE) receives a reference symbol from the base station. The UE processes the reference symbol with one or more of a plurality of precoding matrices to form a plurality of channel quality indices (CQI). The UE provides feedback to the eNB comprising one or more feedback CQI selected from the plurality of CQI and one or more precoding matrix indicators (PMI) identifying the one or more precoding matrices used to form each of the one or more feedback CQIs, wherein at least two PMI are included in the feedback.

    摘要翻译: 蜂窝网络中的单用户和多用户MIMO传输可以由发送一个或两个传输层的基站(eNB)执行。 用户设备(UE)从基站接收参考符号。 UE使用多个预编码矩阵中的一个或多个来处理参考符号以形成多个信道质量索引(CQI)。 UE向eNB提供包括从多个CQI中选择的一个或多个反馈CQI的反馈,以及标识用于形成一个或多个反馈CQI中的每一个的一个或多个预编码矩阵的一个或多个预编码矩阵指示符(PMI),其中, 反馈中包含最少两个PMI。

    Nested precoding codebook structures for MIMO systems
    32.
    发明授权
    Nested precoding codebook structures for MIMO systems 有权
    MIMO系统的嵌套预编码码本结构

    公开(公告)号:US08259824B2

    公开(公告)日:2012-09-04

    申请号:US12124529

    申请日:2008-05-21

    IPC分类号: H04K1/10

    摘要: Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter is for use with NT transmit antennas and includes a precoder unit configured to precode data for transmission using a preceding matrix selected from a nested codebook, wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT×NT preceding matrices. The transmitter also includes a transmit unit configured to transmit the precoded data. In another embodiment, the receiver includes a receive unit configured to receive preceded data. The receiver also includes a precoder selection unit configured to select a preceding matrix from a nested codebook for the preceded data, wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT×NT preceding matrices.

    摘要翻译: 本公开的实施例提供发射机,接收机和操作发射机和接收机的方法。 在一个实施例中,发射机用于NT发射天线,并且包括预编码器单元,其配置为使用从嵌套码本中选择的先前矩阵来对数据进行预编码,其中嵌套码本提供对应于从列导出的不同传输层的码本 多个NT×NT以前的矩阵的子集。 发射机还包括被配置为发送预编码数据的发射单元。 在另一个实施例中,接收机包括被配置为接收先前数据的接收单元。 接收机还包括预编码器选择单元,其被配置为从先前数据的嵌套码本中选择前一矩阵,其中嵌套码本提供对应于从多个NT×NT先前矩阵的列子集导出的不同传输层的码本。

    User Equipment Feedback In Support of Multiple Input Multiple Output Operations
    33.
    发明申请
    User Equipment Feedback In Support of Multiple Input Multiple Output Operations 审中-公开
    用户设备反馈支持多输入多输出操作

    公开(公告)号:US20120218937A1

    公开(公告)日:2012-08-30

    申请号:US12766151

    申请日:2010-04-23

    IPC分类号: H04W4/00

    摘要: A method of feedback in wireless telephony includes a hybrid of implicit and explicit feedback. The implicit and explicit feedback are transmitted in distinct subframes. These distinct set of subframes may have the same periodicity but differing offsets. The distinct set of subframes may have periodicities related by an integral factor. Either set of subframes may include aperiodic subframes.

    摘要翻译: 无线电话中的反馈方法包括隐式和显式反馈的混合。 隐含和明确的反馈在不同的子帧中传输。 这些不同的子帧集可以具有相同的周期性,但是具有不同的偏移。 不同的子帧组可以具有由积分因子相关的周期性。 任一组子帧可以包括非周期子帧。

    Precoding matrix feedback processes, circuits and systems
    34.
    发明授权
    Precoding matrix feedback processes, circuits and systems 有权
    预编码矩阵反馈过程,电路和系统

    公开(公告)号:US08179775B2

    公开(公告)日:2012-05-15

    申请号:US12188767

    申请日:2008-08-08

    IPC分类号: H04J11/00

    摘要: An electronic device includes a first circuit (111) operable to generate a precoding matrix index (PMI) vector associated with a plurality of configured subbands, and further operable to form a compressed PMI vector from the PMI vector wherein the compressed PMI vector includes one reference PMI and at least one differential subband PMI defined relative to the reference PMI; and a second circuit (113) operable to initiate transmission of a signal communicating the compressed PMI vector. Other electronic devices, processes and systems are also disclosed.

    摘要翻译: 电子设备包括可操作以产生与多个配置的子带相关联的预编码矩阵索引(PMI)向量的第一电路(111),并且还可用于从PMI向量形成压缩的PMI向量,其中压缩的PMI向量包括一个参考 PMI和相对于参考PMI定义的至少一个差分子带PMI; 以及第二电路(113),其可操作以启动传送所述压缩PMI矢量的信号的传输。 还公开了其它电子设备,过程和系统。

    CSI Reporting on PUSCH for Carrier Aggregation
    35.
    发明申请
    CSI Reporting on PUSCH for Carrier Aggregation 有权
    用于载波聚合的PUSCH的CSI报告

    公开(公告)号:US20110305161A1

    公开(公告)日:2011-12-15

    申请号:US13160900

    申请日:2011-06-15

    IPC分类号: H04W24/00

    摘要: Carrier aggregation allows concurrent transmission on multiple component carriers (CC) to increase the data rate. A user equipment (UE) device in a cellular network provides periodic or aperiodic channel state information of the DL channel to a base station (eNB) for each of the aggregated CCs. The UE receives two or more reference signals corresponding to two or more aggregated CCs from an eNB. The UE computes a plurality of channel state information (CSI) reports for each of two or more aggregated CCs derived from the two or more reference signals. The UE receives a positive CSI request from the eNB for a CSI report and transmits CSI feedback to the eNB comprising one or more CSI reports selected from the plurality of CSI reports.

    摘要翻译: 载波聚合允许在多个分量载波(CC)上并发传输以增加数据速率。 蜂窝网络中的用户设备(UE)设备为每个聚合CC向基站(eNB)提供DL信道的周期性或非周期信道状态信息。 UE从eNB接收对应于两个或更多个聚合CC的两个或更多个参考信号。 UE为从两个或更多个参考信号导出的两个或多个聚合CC中的每一个计算多个信道状态信息(CSI)报告。 UE从eNB接收CSI报告的肯定CSI请求,并向CSI发送包括从多个CSI报告中选择的一个或多个CSI报告的CSI反馈。

    PRECODING MATRIX FEEDBACK PROCESSES, CIRCUITS AND SYSTEMS
    36.
    发明申请
    PRECODING MATRIX FEEDBACK PROCESSES, CIRCUITS AND SYSTEMS 有权
    预测矩阵反馈过程,电路和系统

    公开(公告)号:US20090046569A1

    公开(公告)日:2009-02-19

    申请号:US12188767

    申请日:2008-08-08

    IPC分类号: H04J11/00

    摘要: An electronic device includes a first circuit (111) operable to generate a precoding matrix index (PMI) vector associated with a plurality of configured subbands, and further operable to form a compressed PMI vector from said PMI vector wherein the compressed PMI vector includes one reference PMI and at least one differential subband PMI defined relative to the reference PMI; and a second circuit (113) operable to initiate transmission of a signal communicating the compressed PMI vector. Other electronic devices, processes and systems are also disclosed.

    摘要翻译: 电子设备包括可操作以产生与多个配置子带相关联的预编码矩阵索引(PMI)向量的第一电路(111),并且还可操作以从所述PMI向量形成压缩PMI向量,其中,所述压缩PMI向量包括一个参考 PMI和相对于参考PMI定义的至少一个差分子带PMI; 以及第二电路(113),其可操作以启动传送所述压缩PMI矢量的信号的传输。 还公开了其它电子设备,过程和系统。

    Layer mapping for up link single user multiple input multiple output wireless telephony
    37.
    发明授权
    Layer mapping for up link single user multiple input multiple output wireless telephony 有权
    用于上行链路单用户多输入多输出无线电话的层映射

    公开(公告)号:US08971448B2

    公开(公告)日:2015-03-03

    申请号:US12693028

    申请日:2010-01-25

    摘要: This invention is a method and an apparatus to up link transmission of data from a user equipment to a base station for single user multiple input, multiple output. This invention includes receiving at least one codeword, permuting the received codewords, precoding the permuted codewords and transmitting the predecoded codewords on plural antennas. The codewords may be permuted by layer permutation or by codeword permutation.

    摘要翻译: 本发明是一种用于将单个用户多输入,多输出的用户设备向基站传输数据的方法和装置。 本发明包括接收至少一个码字,对接收到的码字进行置换,对置换的码字进行预编码并在多个天线上发送预解码码字。 码字可以通过层排列或通过码字排列来排列。

    Higher order multiple input, multiple output extension
    40.
    发明授权
    Higher order multiple input, multiple output extension 有权
    高阶多输入,多输出扩展

    公开(公告)号:US08270518B2

    公开(公告)日:2012-09-18

    申请号:US12497111

    申请日:2009-07-02

    IPC分类号: H04B7/02 H04L1/02

    摘要: A method of multiple input multiple output downlink communications including mapping complex-valued modulation symbols onto one or more transmission layers by mapping complex-valued modulation symbols onto the layers and preceding the complex-valued modulation block of vectors and generating a block of vectors mapped onto at least four antenna ports. A first embodiment employs a maximum of two layers per codeword. A second embodiment employs no more than two codewords.

    摘要翻译: 一种多输入多输出下行链路通信的方法,包括:将复值调制符号映射到一个或多个传输层上,将复值调制符号映射到层上并在复数值的向量调制块之前,并产生映射到 至少四个天线端口。 第一实施例每个码字最多使用两层。 第二实施例使用不超过两个码字。