User equipment and methods for codebook subsampling for enhanced 4TX codebooks
    61.
    发明授权
    User equipment and methods for codebook subsampling for enhanced 4TX codebooks 有权
    用于增强型4TX码本的码本子采样的用户设备和方法

    公开(公告)号:US09071297B2

    公开(公告)日:2015-06-30

    申请号:US14108648

    申请日:2013-12-17

    摘要: Embodiments of user equipment (UE) and methods for codebook subsampling for enhanced 4TX codebooks in 3GPP LTE wireless networks are generally described herein. In some embodiments, a physical uplink control channel (PUCCH) is configured for transmission of channel state information (CSI) feedback including a rank indicator (RI) and a precoding matrix (W1). The rank indicator (RI) and a precoding matrix (W1) are jointly encoded and codebook subsampling is performed for the enhanced 4Tx codebook for at least one of: PUCCH report type 5 (RI/1st PMI) in PUCCH 1-1 submode 1; PUCCH report type 2c (CQI/1st PMI/2nd PMI) in PUCCH 1-1 submode 2; and PUCCH report type 1a (subband CQI/2nd PMI) in PUCCH 2-1.

    摘要翻译: 3GPP LTE无线网络中用于增强的4TX码本的用户设备(UE)和码本子采样方法的实施例在这里通常被描述。 在一些实施例中,物理上行链路控制信道(PUCCH)被配置用于传输包括秩指示符(RI)和预编码矩阵(W1)的信道状态信息(CSI)反馈。 针对PUCCH 1-1子模式1中的PUCCH报告类型5(RI /第一PMI)中的至少一个,增强型4Tx码本对码本指示符(RI)和预编码矩阵(W1)进行联合编码,并执行码本子采样。 PUCCH 1-1子模式2中的PUCCH报告类型2c(CQI / 1st PMI / 2nd PMI); 和PUCCH 2-1中的PUCCH报告类型1a(子带CQI /第二PMI)。

    CSI-RS ANTENNA PORTS EXTENSION AND 3D CODEBOOK DESIGN
    62.
    发明申请
    CSI-RS ANTENNA PORTS EXTENSION AND 3D CODEBOOK DESIGN 有权
    CSI-RS天线端口扩展和3D代码设计

    公开(公告)号:US20150180684A1

    公开(公告)日:2015-06-25

    申请号:US14128338

    申请日:2013-09-27

    IPC分类号: H04L25/03 H04B17/24 H04B7/04

    摘要: A system and a method is disclosed for selecting at least one vertical precoding vector of a three-dimensional Multiple Input Multiple Output (3D-MIMO) configuration based on Channel State Information-Reference Signal (CSI-RS) information that is feedback from a wireless terminal device to an evolved Node B (eNB). The 3D-MIMO CSI-RS process is configured for a plurality of CSI-RS ports in which the plurality of CSI-RS ports that are grouped into a plurality of CSI-RS port groups and in which corresponds to the 3D arrangement of antennas. CSI configuration information for the different CSI-RS port groups can be a time-domain-based CSI-RS process, a frequency-domain-based CSI-RS process, a code-domain-based CSI-RS process, or a combination thereof. CSI-RS information is measured for each CSI-RS group and feedback for selection of the at least one vertical precoding vector.

    摘要翻译: 公开了一种用于基于来自无线电的反馈的信道状态信息参考信号(CSI-RS)信息来选择三维多输入多输出(3D-MIMO)配置的至少一个垂直预编码向量的系统和方法 终端设备到演进节点B(eNB)。 为多个CSI-RS端口配置3D-MIMO CSI-RS进程,其中分组为多个CSI-RS端口组并且其中对应于天线的3D布置的多个CSI-RS端口。 不同CSI-RS端口组的CSI配置信息可以是基于时域的CSI-RS进程,基于频域的CSI-RS进程,基于码域的CSI-RS进程或其组合 。 针对每个CSI-RS组测量CSI-RS信息和用于选择至少一个垂直预编码向量的反馈。

    CQI DEFINITION FOR TRANSMISSION MODE 9 IN LTE-ADVANCED
    66.
    发明申请
    CQI DEFINITION FOR TRANSMISSION MODE 9 IN LTE-ADVANCED 有权
    LTE-ADVANCED中传输模式9的CQI定义

    公开(公告)号:US20120176965A1

    公开(公告)日:2012-07-12

    申请号:US13167941

    申请日:2011-06-24

    IPC分类号: H04W28/18

    摘要: An evolved Node B (eNB) in a 3GPP LTE-based network receives Channel State Information-Reference Signal (CSI-RS) from a User Equipment (UE) that is configured with Precoder Matrix Indictor (PMI) disabled. A channel is estimated between the eNB and the UE for link adaptation in Transmission Mode 9 (TM9) based on CSI-RS by the UE and SRS by the eNB. CQI is calculated at UE such that if a number of CSI-RS antenna ports equals one, TM9 transmission from the eNB to the UE uses a predetermined single antenna port. If the number of CSI-RS antenna ports equals two, TM9 transmission from the eNB to the UE uses transmit diversity. If the number of CSI-RS antenna ports does not equal one or two, TM9 transmission from the eNB to the UE uses spatial multiplexing based on a rank-1 precoder that is determined from a wideband channel covariance matrix R.

    摘要翻译: 基于3GPP LTE的网络中的演进节点B(eNB)从被配置为禁用预编码矩阵指示符(PMI)的用户设备(UE)接收信道状态信息参考信号(CSI-RS)。 在eNB和UE之间估计基于UE的SRS-RS的传输模式9(TM9)中的链路自适应的信道。 在UE处计算CQI,使得如果CSI-RS天线端口的数量等于1,则从eNB到UE的TM9传输使用预定的单个天线端口。 如果CSI-RS天线端口的数量等于2,则从eNB到UE的TM9传输使用发送分集。 如果CSI-RS天线端口的数量不等于1或2,则从eNB到UE的TM9传输使用基于从宽带信道协方差矩阵R确定的秩1预编码器的空间复用。