OPEN LOOP MIMO MODE FOR LTE-A UPLINK
    11.
    发明申请
    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:US20120051453A1

    公开(公告)日:2012-03-01

    申请号:US13214024

    申请日:2011-08-19

    IPC分类号: H04W92/00 H04L27/00

    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。

    FEEDBACK OF CONTROL INFORMATION FOR MULTIPLE CARRIERS
    12.
    发明申请
    FEEDBACK OF CONTROL INFORMATION FOR MULTIPLE CARRIERS 有权
    多载波控制信息反馈

    公开(公告)号:US20110243012A1

    公开(公告)日:2011-10-06

    申请号:US13078488

    申请日:2011-04-01

    IPC分类号: H04W72/04 H04W28/00

    摘要: Techniques for sending control information relating to multiple downlink carriers and data on a single uplink carrier are described. A user equipment (UE) may be scheduled to transmit on a designated uplink carrier. The UE can multiplex control information for multiple downlink carriers with data for transmission on the uplink carrier in a same subframe. Multiplexing may be performed according to a type of the control information and/or an ordering, priority, or association of the downlink carriers. The UE can selectively encode the control information separately for each downlink carrier and/or jointly across downlink carriers. The control information may be mapped to a single layer or multiple layers of a data channel. The UE may send the multiplexed control information and data on the data channel in the subframe while maintaining a single-carrier waveform.

    摘要翻译: 描述用于在单个上行链路载波上发送与多个下行链路载波和数据有关的控制信息的技术。 可以调度用户设备(UE)在指定的上行链路载波上进行发送。 UE可以将多个下行链路载波的控制信息复用在同一子帧中的上行链路载波上进行传输。 可以根据控制信息的类型和/或下行链路载波的排序,优先级或关联来执行复用。 UE可以针对每个下行链路载波和/或共同跨下行链路载波选择性地编码控制信息。 控制信息可以被映射到数据信道的单层或多层。 UE可以在保持单载波波形的同时在子帧中的数据信道上发送复用的控制信息和数据。

    TRANSMISSION OF REFERENCE SIGNAL ON NON-CONTIGUOUS CLUSTERS OF RESOURCES
    14.
    发明申请
    TRANSMISSION OF REFERENCE SIGNAL ON NON-CONTIGUOUS CLUSTERS OF RESOURCES 有权
    传输非资源集群资源的参考信号

    公开(公告)号:US20110141982A1

    公开(公告)日:2011-06-16

    申请号:US12816929

    申请日:2010-06-16

    IPC分类号: H04W72/04

    摘要: Techniques for transmitting a reference signal on multiple non-contiguous clusters of resources are described. A user equipment (UE) may be scheduled for data transmission on the multiple non-contiguous clusters, and each cluster may cover a set of contiguous subcarriers. The UE may generate the reference signal based on at least one reference signal (RS) sequence using code division multiplexing (CDM) or frequency division multiplexing (FDM). In an design, the UE generates the reference signal with CDM based on a single RS sequence having a length matching the total length of the multiple non-contiguous clusters. In another design, the UE generates the reference signal with CDM based on one RS sequence for each cluster. In yet another design, the UE generates the reference signal with FDM and transmits the reference signal on a subset of all subcarriers for the multiple non-contiguous clusters.

    摘要翻译: 描述了用于在多个不连续的资源簇上传送参考信号的技术。 可以调度用户设备(UE)以在多个不连续的群集上进行数据传输,并且每个群集可以覆盖一组连续的子载波。 UE可以使用码分复用(CDM)或频分复用(FDM),基于至少一个参考信号(RS)序列生成参考信号。 在设计中,UE基于具有与多个不连续簇的总长度匹配的长度的单个RS序列,用CDM生成参考信号。 在另一种设计中,UE根据每个簇的一个RS序列产生具有CDM的参考信号。 在又一设计中,UE使用FDM生成参考信号,并且在多个非连续簇的所有子载波的子集上发送参考信号。

    TRANSMIT DIVERSITY FOR SC-FDMA
    15.
    发明申请
    TRANSMIT DIVERSITY FOR SC-FDMA 有权
    SC-FDMA的传输多样性

    公开(公告)号:US20100085955A1

    公开(公告)日:2010-04-08

    申请号:US12564670

    申请日:2009-09-22

    IPC分类号: H04B7/208

    摘要: Techniques for transmitting data with transmit diversity for single-carrier frequency division multiple access (SC-FDMA) are described. In one design, a transmitter (e.g., a UE) may form a first symbol vector including first and second modulation symbol sequences. The transmitter may also form a second symbol vector including third and fourth modulation symbol sequences, which may be generated based on the second and first modulation symbol sequences, respectively. Each symbol vector may further include a cyclic prefix and possibly a cyclic postfix for each modulation symbol sequence. The transmitter may generate a first SC-FDMA symbol based on the first symbol vector and a second SC-FDMA symbol based on the second symbol vector. The transmitter may transmit the first and second SC-FDMA symbols from two transmit antennas in a single SC-FDMA symbol period to achieve transmit diversity.

    摘要翻译: 描述了用于单载波频分多址(SC-FDMA)发射分集的数据传输技术。 在一种设计中,发射机(例如,UE)可以形成包括第一和第二调制符号序列的第一符号向量。 发射机还可以形成包括分别基于第二和第一调制符号序列生成的第三和第四调制符号序列的第二符号向量。 每个符号向量可以进一步包括每个调制符号序列的循环前缀和可能的循环后缀。 发射机可以基于第一符号向量生成第一SC-FDMA符号,并且基于第二符号向量生成第二SC-FDMA符号。 发射机可以在单个SC-FDMA符号周期中从两个发射天线发送第一和第二SC-FDMA符号以实现发射分集。

    Multiplexing demodulation reference signals in wireless communications
    16.
    发明授权
    Multiplexing demodulation reference signals in wireless communications 有权
    在无线通信中复用解调参考信号

    公开(公告)号:US09258160B2

    公开(公告)日:2016-02-09

    申请号:US12987771

    申请日:2011-01-10

    摘要: Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple layers in multiple-input multiple-output (MIMO) communications. A CS index can be received from a base station in downlink control information (DCI) or similar signaling. Based at least in part on the CS index, CS values for the plurality of DM-RSs can be determined. In addition, OCC can be explicitly signaled or similarly determined from the CS index and/or a configured CS value received from a higher layer. In addition, controlling assignment of CS indices and/or OCC can facilitate providing orthogonality for communications from paired devices in multiuser MIMO.

    摘要翻译: 提供了用于确定在多输入多输出(MIMO)通信中通过多层传输的多个解调参考信号(DM-RS)的循环移位(CS)值和/或正交覆盖码(OCC)的方法和装置。 可以在下行链路控制信息(DCI)或类似信令中从基站接收CS索引。 至少部分地基于CS索引,可以确定多个DM-RS的CS值。 另外,可以从CS索引和/或从较高层接收到的配置的CS值明确地发信号或类似地确定OCC。 此外,控制CS索引和/或OCC的分配可以有助于在多用户MIMO中为来自配对设备的通信提供正交性。

    Method and apparatus for improving acknowledgement/negative acknowledgement feedback
    17.
    发明授权
    Method and apparatus for improving acknowledgement/negative acknowledgement feedback 有权
    用于改善确认/否定确认反馈的方法和装置

    公开(公告)号:US08830883B2

    公开(公告)日:2014-09-09

    申请号:US13296030

    申请日:2011-11-14

    IPC分类号: H04J3/00 H04W4/00

    CPC分类号: H04L5/0053 H04L1/1812

    摘要: A method, apparatus, and computer program product for wireless communication are provided to receive a downlink grant including a transmission power control (TPC) command and a downlink assignment index (DAI) for an uplink subframe, determine that a value for at least one of the TPC commands is an ACK/NACK resource indicator for an uplink control channel resource based on a value of the DAI, and transmit one or more ACK/NACK bits using the uplink control channel resource. In another example, an eNB may be equipped to transmit a downlink grant including TPC command and DAI for an uplink subframe, wherein the DAI is greater than 1 and the TPC command is replaced with an ACK/NACK resource indicator, and receive a signal including uplink control channel information, where ACK/NACK feedback for one or more downlink subframes associated with the uplink subframe are included in a resource indicated by the resource indicator.

    摘要翻译: 提供一种用于无线通信的方法,装置和计算机程序产品,用于接收包括用于上行链路子帧的发射功率控制(TPC)命令和下行链路分配索引(DAI))的下行链路许可,确定对于以下各项中的至少一个的值: TPC命令是基于DAI的值的上行链路控制信道资源的ACK / NACK资源指示符,并使用上行链路控制信道资源发送一个或多个ACK / NACK比特。 在另一示例中,可以配备eNB发送包括用于上行链路子帧的TPC命令和DAI的下行链路许可,其中DAI大于1,并且TPC命令被替换为ACK / NACK资源指示符,并且接收包括 上行链路控制信道信息,其中与所述上行链路子帧相关联的一个或多个下行链路子帧的ACK / NACK反馈被包括在由所述资源指示符指示的资源中。

    Control channel resources for multi-bit ACK/NAK
    18.
    发明授权
    Control channel resources for multi-bit ACK/NAK 有权
    控制多位ACK / NAK的信道资源

    公开(公告)号:US08804639B2

    公开(公告)日:2014-08-12

    申请号:US13252116

    申请日:2011-10-03

    IPC分类号: H04W72/04

    摘要: A method of wireless communication includes receiving an upper layer configuration of multiple sets of ACK/NAK resources for uplink transmission. The receives resources correspond to at least one secondary downlink component carrier in a multicarrier configuration. The method also includes receiving a physical layer indicator of ACK/NAK resources in the sets.

    摘要翻译: 一种无线通信方法包括接收用于上行链路传输的多组ACK / NAK资源的上层配置。 接收资源对应于多载波配置中的至少一个辅助下行链路分量载波。 该方法还包括在集合中接收ACK / NAK资源的物理层指示符。

    Multiplexing and coding schemes for multiple transmit antennas in a wireless communication system
    19.
    发明授权
    Multiplexing and coding schemes for multiple transmit antennas in a wireless communication system 有权
    在无线通信系统中用于多个发射天线的多路复用和编码方案

    公开(公告)号:US08737502B2

    公开(公告)日:2014-05-27

    申请号:US12687576

    申请日:2010-01-14

    IPC分类号: H04B7/02

    摘要: Techniques for transmitting data from multiple transmit antennas using space orthogonal resource transmit diversity (SORTD) are described. For the SORTD scheme, a different orthogonal resource may be assigned to each transmit antenna. Data may be sent from the multiple transmit antennas using multiple orthogonal resources. In one design, a UE may process at least one information bit (e.g., with joint or independent coding) to obtain first and second sets of at least one modulation symbol. The UE may process the first set of modulation symbol(s) for transmission from the first transmit antenna using a first orthogonal resource. The UE may process the second set of modulation symbol(s) for transmission from the second transmit antenna using a second orthogonal resource. Each orthogonal resource may include a different reference signal sequence or a different set of reference signal sequence and orthogonal sequence.

    摘要翻译: 描述了使用空间正交资源发射分集(SORTD)从多个发射天线发射数据的技术。 对于SORTD方案,可以将不同的正交资源分配给每个发射天线。 可以使用多个正交资源从多个发射天线发送数据。 在一种设计中,UE可以处理至少一个信息比特(例如,具有联合或独立编码)以获得第一和第二组至少一个调制符号。 UE可以使用第一正交资源处理第一组调制符号以从第一发射天线发射。 UE可以使用第二正交资源处理第二组调制符号以从第二发射天线发射。 每个正交资源可以包括不同的参考信号序列或不同的参考信号序列集合和正交序列。