Open loop MIMO mode for LTE-A uplink
    31.
    发明授权
    Open loop MIMO mode for LTE-A uplink 有权
    用于LTE-A上行链路的开环MIMO模式

    公开(公告)号:US09014287B2

    公开(公告)日:2015-04-21

    申请号:US13214024

    申请日:2011-08-19

    摘要: A precoding scheme to accommodate user equipment (UEs) having higher Doppler speeds. In such transmission schemes, a different precoding matrix is applied to each orthogonal frequency division multiplex (OFDM) symbol in the transmission stream. Additionally, a downlink control message format is defined to handle assignment of multiple different transmission schemes using the same message format. The downlink control message format includes a control element in one of the message fields along with a set of parameters specifically applicable to the assigned transmission scheme. Based on the value of this control element, the UE sets the specific transmission scheme and determines a set of interpretation rules uniquely associated with that transmission scheme. Using the interpretation rules, the UE is able to read the set of parameters as applied to the selected transmission scheme.

    摘要翻译: 一种用于适应具有更高多普勒速度的用户设备(UE)的预编码方案。 在这种传输方案中,将不同的预编码矩阵应用于传输流中的每个正交频分复用(OFDM)符号。 另外,下行链路控制消息格式被定义为使用相同的消息格式来处理多个不同传输方案的分配。 下行链路控制消息格式包括在消息字段之一中的控制元素以及特定适用于所分配的传输方案的一组参数。 基于该控制元件的值,UE设置特定的传输方案并且确定与该传输方案唯一相关联的一组解释规则。 使用解释规则,UE能够读取应用于所选传输方案的一组参数。

    Method and apparatus for switching between single user detection and multi user detection
    32.
    发明授权
    Method and apparatus for switching between single user detection and multi user detection 有权
    用于单用户检测和多用户检测之间切换的方法和装置

    公开(公告)号:US08983389B2

    公开(公告)日:2015-03-17

    申请号:US13009174

    申请日:2011-01-19

    摘要: Certain aspects of the present disclosure propose methods and apparatuses for detecting whether a user device is scheduled for a single user (SU) multiple-input multiple-output (MIMO) communication mode or for a multi-user (MU) MIMO communication mode. In an aspect, a method for wireless communications is provided which includes measuring, at a first apparatus based on received pilot signals, a first receive power corresponding to a first channel associated with the first apparatus, measuring, based on the received pilot signals, a second receive power corresponding to a second channel associated with at least one potentially present second apparatus, measuring a residual interference based on the received pilot signals, and determining, based on at least one of the first receive power, the second receive power and the residual interference, whether to apply a MU detection or a SU detection for estimating data received at the first apparatus.

    摘要翻译: 本公开的某些方面提出了用于检测是否为单用户(SU)多输入多输出(MIMO)通信模式或多用户(MU)MIMO通信模式)调度用户设备的方法和装置。 一方面,提供了一种用于无线通信的方法,其包括在第一装置基于接收到的导频信号测量与第一装置相关联的第一信道对应的第一接收功率,基于接收到的导频信号, 对应于与至少一个潜在存在的第二装置相关联的第二信道的第二接收功率,基于接收到的导频信号测量残余干扰,以及基于所述第一接收功率,所述第二接收功率和所述残差中的至少一个来确定 干扰,是否应用MU检测或SU检测来估计在第一装置处接收到的数据。

    Method and apparatus of using CDD like schemes with UE-RS based open loop beamforming
    33.
    发明授权
    Method and apparatus of using CDD like schemes with UE-RS based open loop beamforming 有权
    使用基于UE-RS的开环波束形成的CDD类似方案的方法和装置

    公开(公告)号:US08934560B2

    公开(公告)日:2015-01-13

    申请号:US13253747

    申请日:2011-10-05

    摘要: A method and apparatus of wireless communication are disclosed. The wireless communication performs pilot signal transmissions using a first precoding matrix for user equipment specific pilot signals, the pilot signal transmissions having a first transmission rank. The wireless communication also performs data transmissions using a second precoding matrix for data when the data transmissions have a second transmission rank less than the first transmission rank, in which the second precoding matrix includes a transformed version of the first precoding matrix. Alternatively, the wireless communication can perform data transmissions using at least two precoding matrices for data when the data transmissions have a second transmission rank less than or equal to the first transmission rank. Accordingly, the precoding matrix used for data is a transformed version of the precoding matrix used for user equipment specific pilot signals.

    摘要翻译: 公开了一种无线通信的方法和装置。 无线通信使用用于用户设备专用导频信号的第一预编码矩阵来执行导频信号传输,导频信号传输具有第一传输等级。 当数据传输具有小于第一传输秩的第二传输级时,无线通信还使用用于数据的第二预编码矩阵执行数据传输,其中第二预编码矩阵包括第一预编码矩阵的变换版本。 或者,当数据传输具有小于或等于第一传输等级的第二传输等级时,无线通信可以使用用于数据的至少两个预编码矩阵来执行数据传输。 因此,用于数据的预编码矩阵是用于用户设备专用导频信号的预编码矩阵的变换版本。

    Channel feedback based on reference signal
    34.
    发明授权
    Channel feedback based on reference signal 有权
    基于参考信号的信道反馈

    公开(公告)号:US08599708B2

    公开(公告)日:2013-12-03

    申请号:US13006216

    申请日:2011-01-13

    摘要: Techniques for supporting channel measurement and reporting in a wireless communication system are described. In one design, a cell transmits a cell-specific reference signal (CRS) used for channel estimation and coherent demodulation and a channel spatial information reference signal (CSI-RS) used for channel measurement and channel feedback reporting. The cell may transmit the CSI-RS less frequently than the CRS, or from more antenna ports than the CRS, or on fewer resource elements than the CRS, or a combination thereof. In one design, a user equipment (UE) determines at least one bandwidth part configured for the UE, with each bandwidth part covering at least one subband. The UE receives the CRS and CSI-RS from the cell, determines channel feedback information for the at least one bandwidth part based on the CSI-RS, sends the channel feedback information to the cell, and receives data transmitted by the cell based on the channel feedback information.

    摘要翻译: 描述了在无线通信系统中支持信道测量和报告的技术。 在一种设计中,小区发送用于信道估计和相干解调的小区特定参考信号(CRS)以及用于信道测量和信道反馈报告的信道空间信息参考信号(CSI-RS)。 小区可以比CRS更频繁地发送CSI-RS,或者比比CRS更多的天线端口或比CRS更少的资源元素或其组合来发送CSI-RS。 在一种设计中,用户设备(UE)确定为UE配置的至少一个带宽部分,每个带宽部分覆盖至少一个子带。 UE从小区接收CRS和CSI-RS,基于CSI-RS确定至少一个带宽部分的信道反馈信息,向小区发送信道反馈信息,并接收基于小区的小区发送的数据 渠道反馈信息。

    RATE MATCHING FOR COORDINATED MULTIPOINT TRANSMISSION SCHEMES
    36.
    发明申请
    RATE MATCHING FOR COORDINATED MULTIPOINT TRANSMISSION SCHEMES 审中-公开
    协调多点传输方案的速率匹配

    公开(公告)号:US20120182946A1

    公开(公告)日:2012-07-19

    申请号:US13351156

    申请日:2012-01-16

    IPC分类号: H04W72/04

    摘要: Certain aspects of the present disclosure relate to techniques for determining resource elements REs used for Coordinated Multipoint (CoMP) transmission schemes. The techniques generally include determining, by a User Equipment (UE), a set of data REs used for Coordinated Multipoint (CoMP) operation. The determination is based on a CoMP scheme and data REs available to particular base stations involved in the CoMP operation. The technique further includes processing data received via the CoMP operation on the determined set of data REs.

    摘要翻译: 本公开的某些方面涉及用于确定用于协调多点(CoMP)传输方案的资源元素RE的技术。 技术通常包括由用户设备(UE)确定用于协调多点(CoMP)操作的一组数据RE。 该确定基于CoMP方案和参与CoMP操作的特定基站可用的数据RE。 该技术还包括处理经由所确定的数据RE集合经由CoMP操作接收的数据。

    INTERLEAVING FOR RELAY PHYSICAL DOWNLINK CONTROL CHANNEL (R-PDCCH)
    37.
    发明申请
    INTERLEAVING FOR RELAY PHYSICAL DOWNLINK CONTROL CHANNEL (R-PDCCH) 有权
    交互式物理下行链路控制信道(R-PDCCH)

    公开(公告)号:US20120039220A1

    公开(公告)日:2012-02-16

    申请号:US13210083

    申请日:2011-08-15

    IPC分类号: H04W72/08 H04W88/04

    摘要: Certain aspects of the present disclosure provide methods and apparatus for interleaving control information for one or more nodes. For certain aspects, the control information may comprise one or more Relay Physical Downlink Control Channels (R-PDCCHs) for one or more relay nodes. The interleaving may comprise interleaving Common Reference Signal (CRS)-based R-PDCCH, wherein the resource elements (REs) for CRS and/or Channel State Information Reference Signal (CSI-RS) may be discounted in a physical resource block (PRB).

    摘要翻译: 本公开的某些方面提供了用于交织一个或多个节点的控制信息的方法和装置。 对于某些方面,控制信息可以包括用于一个或多个中继节点的一个或多个中继物理下行链路控制信道(R-PDCCH)。 交织可以包括基于公共参考信号(CRS)的R-PDCCH的交织,其中用于CRS和/或信道状态信息参考信号(CSI-RS)的资源元素(RE)可以在物理资源块(PRB) 。

    FEEDBACK FOR SUPPORTING SU-MIMO AND MU-MIMO OPERATION IN WIRELESS COMMUNICATION
    38.
    发明申请
    FEEDBACK FOR SUPPORTING SU-MIMO AND MU-MIMO OPERATION IN WIRELESS COMMUNICATION 有权
    用于在无线通信中支持SU-MIMO和MU-MIMO操作的反馈

    公开(公告)号:US20120020433A1

    公开(公告)日:2012-01-26

    申请号:US13011595

    申请日:2011-01-21

    IPC分类号: H04L25/49

    摘要: A method, an apparatus, and a computer program product for wireless communication are provided in which a precoding matrix is determined from a set of precoding matrices with a first throughput based on a reference signal. In addition, a subset of precoding matrices is determined from the set of precoding matrices with a second throughput greater than a fraction of the first throughput based on the reference signal. Furthermore, a precoding matrix is selected from the subset of precoding matrices based on a metric.

    摘要翻译: 提供了一种用于无线通信的方法,装置和计算机程序产品,其中,从具有基于参考信号的第一吞吐量的一组预编码矩阵确定预编码矩阵。 另外,根据基于参考信号的第二吞吐量大于第一吞吐量的一部分的预编码矩阵集来确定预编码矩阵的子集。 此外,基于度量从预编码矩阵的子集中选择预编码矩阵。

    Physical resource block (PRB) bundling for open loop beamforming
    39.
    发明授权
    Physical resource block (PRB) bundling for open loop beamforming 有权
    用于开环波束成形的物理资源块(PRB)捆绑

    公开(公告)号:US09148204B2

    公开(公告)日:2015-09-29

    申请号:US13164551

    申请日:2011-06-20

    IPC分类号: H04B7/04 H04L25/02 H04L5/00

    摘要: Provided is a method for wireless communication which includes determining a data allocation size available for data to be transmitted, determining a bundling size based at least in part on the data allocation size, and precoding at least one reference signal in bundled contiguous resource blocks of the determined bundling size. The at least one reference signal in resource blocks in each bundle are precoded with a common precoding matrix.

    摘要翻译: 提供了一种用于无线通信的方法,其包括确定可用于要发送的数据的数据分配大小,至少部分地基于所述数据分配大小来确定捆绑大小,以及对所捆绑的连续资源块中的至少一个参考信号进行预编码 确定捆绑大小。 每个束中的资源块中的至少一个参考信号用公共预编码矩阵进行预编码。