Multi-rank precoding matrix indicator (PMI) feedback in a multiple-input multiple-output (MIMO) system
    2.
    发明授权
    Multi-rank precoding matrix indicator (PMI) feedback in a multiple-input multiple-output (MIMO) system 有权
    多输入多输出(MIMO)系统中的多级预编码矩阵指标(PMI)反馈

    公开(公告)号:US09001907B2

    公开(公告)日:2015-04-07

    申请号:US14016882

    申请日:2013-09-03

    摘要: In at least some embodiments, a system includes a multiple-input multiple-output (MIMO) base station and a plurality of MIMO user equipment (UE) devices in communication with the MIMO base station. The MIMO base station is configured to switch between a single-user (SU)-MIMO mode and a multiple-user (MU)-MIMO mode during communications with the plurality of MIMO UE devices based on multi-rank precoding matrix indicator (PMI) feedback received from at least one of the MIMO UE devices.

    摘要翻译: 在至少一些实施例中,系统包括与MIMO基站通信的多输入多输出(MIMO)基站和多个MIMO用户设备(UE)设备。 基于多级预编码矩阵指示符(PMI),MIMO基站被配置为在与多个MIMO UE设备通信期间在单用户(SU)-MIMO模式和多用户(MU)-MIMO模式之间) 从MIMO UE设备中的至少一个接收的反馈。

    Configuration of rank indicator reporting instances
    3.
    发明授权
    Configuration of rank indicator reporting instances 有权
    排名指标报告实例的配置

    公开(公告)号:US08798023B2

    公开(公告)日:2014-08-05

    申请号:US13566059

    申请日:2012-08-03

    摘要: A method for setting a periodicity and an offset in rank indicator (RI) reporting in a user equipment in a wireless communication system receives a radio resource control (RRC) signal from a base station, decodes a RI periodicity and offset configuration index, sets the periodicity and offset in accordance with said decoded periodicity and offset configuration index and reports a RI according to the set periodicity and offset. The periodicity is an integer and reporting a RI reports with equal the product of the periodicity and a period of reporting of the channel quality indicator (CQI) and the precoding matrix indicator (PMI).

    摘要翻译: 在无线通信系统中的用户设备中的用于设置秩指示符(RI)报告中的周期性和偏移量的方法从基站接收无线资源控制(RRC)信号,对RI周期性和偏移配置索引进行解码, 周期性和偏移量根据所述解码周期和偏移配置指数,并根据设定的周期和偏移报告RI。 周期性是一个整数,报告RI报告与周期的乘积和信道质量指标(CQI)和预编码矩阵指标(PMI)的报告周期相等。

    Multiple CQI feedback for cellular networks
    4.
    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
    5.
    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
    6.
    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
    7.
    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。

    CFI Signaling for Heterogeneous Networks with Multiple Component Carriers in LTE-Advanced
    8.
    发明申请
    CFI Signaling for Heterogeneous Networks with Multiple Component Carriers in LTE-Advanced 审中-公开
    用于LTE-Advanced中具有多个分量载波的异构网络的CFI信令

    公开(公告)号:US20120063321A1

    公开(公告)日:2012-03-15

    申请号:US13050399

    申请日:2011-03-17

    IPC分类号: H04W24/00 H04W52/24

    CPC分类号: H04L1/1896 H04L1/0031

    摘要: This invention mitigates interference in wireless telephony in heterogeneous networks having a macro base station and a low power base station. This invention attempts to avoid cross carrier scheduling on an anchor carrier and a non-anchor carrier. If cross carrier scheduling is unavoidable, then this invention attempts: (1) semi-statically signalling a CFI value on a cross-scheduled component carrier; (2) semi-statically signalling a channel quality information (CSI) value on a cross-scheduled component carrier setting a Physical Hybrid ARQ Indicator CHannel (PHICH) value to be maximum; or (3) semi-statically signalling a channel quality information (CSI) value on a cross-scheduled component carrier using Physical Control Format Indicator CHannel (PCFICH) power boosting on cross-scheduled component carriers (CC).

    摘要翻译: 本发明减轻了具有宏基站和低功率基站的异构网络中的无线电话干扰。 本发明试图避免锚载波和非锚载波上的跨载波调度。 如果交叉载波调度是不可避免的,则本发明尝试:(1)在交叉调度的分量载波上半静态地发送CFI值; (2)在将物理混合ARQ指示符信道(PHICH)值设置为最大的交叉调度分量载波上半信令信道质量信息(CSI)值; 或(3)使用交叉调度分量载波(CC)上的物理控制格式指示符信道(PCFICH)功率提升来半交叉信令交叉调度分量载波上的信道质量信息(CSI)值。

    CSI Reporting on PUSCH for Carrier Aggregation
    9.
    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
    10.
    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。