Signaling of power information for MIMO transmission in a wireless communication system
    2.
    发明授权
    Signaling of power information for MIMO transmission in a wireless communication system 有权
    在无线通信系统中用于MIMO传输的功率信息的信令

    公开(公告)号:US08837337B2

    公开(公告)日:2014-09-16

    申请号:US11971084

    申请日:2008-01-08

    摘要: Techniques for signaling power information to facilitate channel quality indicator (CQI) reporting are described. A Node B may send power information that may be used by a UE to determine a power per channelization code, POVSF. In one design, the power information includes a power offset between the power of a data channel, PHSPDSCH, and the power of a pilot channel. The Node B may determine PHSPDSCH based on the power available for the data channel, the number of available channelization codes, and a designated number of channelization codes. The UE may determine POVSF based on the power information from the Node B and the designated number of channelization codes. The UE may estimate at least one SINR of at least one transport block based on POVSF, determine CQI information for the transport block(s) based on the SINR, and send the CQI information to the Node B.

    摘要翻译: 描述用于信令功率信息以促进信道质量指示符(CQI)报告的技术。 节点B可以发送UE可以使用的功率信息来确定每个信道化码POVSF的功率。 在一种设计中,功率信息包括数据信道的功率PHSPDSCH与导频信道的功率之间的功率偏移。 节点B可以基于可用于数据信道的功率,可用信道化码的数量和指定数量的信道化码来确定PHSPDSCH。 UE可以基于来自节点B的功率信息和指定数量的信道化码来确定POVSF。 UE可以基于POVSF估计至少一个传输块的至少一个SINR,基于SINR确定传输块的CQI信息,并将CQI信息发送到节点B.

    Channel quality indicator design for multiple-user multiple-input and multiple-output in high-speed packet access systems
    3.
    发明授权
    Channel quality indicator design for multiple-user multiple-input and multiple-output in high-speed packet access systems 有权
    用于高速数据包接入系统中多用户多输入和多输出的信道质量指标设计

    公开(公告)号:US08599777B2

    公开(公告)日:2013-12-03

    申请号:US12946702

    申请日:2010-11-15

    IPC分类号: H04W28/00 H04W76/00

    摘要: A method for providing multiple-user multiple-input and multiple-output in a high-speed packet access system is described. A channel quality indicator is received from a dual-stream-capable wireless communication device requesting a single-stream transmission at a first data rate. The first data rate is adjusted by an adaptive outer loop margin to obtain a second data rate. A data stream is transmitted to the wireless communication device using the second data rate. A positive-acknowledgement/negative-acknowledgement (ACK/NACK) is received from the wireless communication device. The adaptive outer loop margin is adjusted according to the received ACK/NACK.

    摘要翻译: 描述了一种用于在高速分组接入系统中提供多用户多输入和多输出的方法。 从具有第一数据速率的单流传输请求的双流能力无线通信设备接收信道质量指示符。 第一数据速率由自适应外循环余量调整以获得第二数据速率。 使用第二数据速率将数据流发送到无线通信设备。 从无线通信设备接收到肯定确认/否定确认(ACK / NACK)。 根据接收的ACK / NACK调整自适应外环余量。

    Dynamic space-time coding for a communication system
    4.
    发明授权
    Dynamic space-time coding for a communication system 有权
    通信系统的动态时空编码

    公开(公告)号:US08320499B2

    公开(公告)日:2012-11-27

    申请号:US11367067

    申请日:2006-03-03

    IPC分类号: H03K9/00

    CPC分类号: H04L1/0625 H04L1/0009

    摘要: Techniques for transmitting data with dynamic space-time coding are described. Dynamic space-time coding refers to the mapping of data across both space and time dimensions based on a mapping scheme that changes in a dynamic manner, e.g., a time-variant manner. A transmitter generates at least one data stream and performs space-time coding on the at least one data stream in a dynamic manner to generate at least two output streams for transmission from at least two antennas. The space-time coding may be performed in various manners. For example, each data stream may be space-time coded based on a respective set of space-time codes, e.g., by cycling through the space-time codes in the code set or by using a space-time code selected based on feedback from a receiver. The code set for each data stream may also be selected from among multiple code sets available for the data stream.

    摘要翻译: 描述了使用动态时空编码传输数据的技术。 动态时空编码是指基于以动态方式(例如时变方式)改变的映射方案,跨越空间和时间维度的数据映射。 发射机生成至少一个数据流,并以动态方式对所述至少一个数据流执行空时编码,以生成至少两个用于从至少两个天线传输的输出流。 时空编码可以以各种方式进行。 例如,每个数据流可以基于空间时间码的相应集合来进行空时编码,例如,通过循环通过代码集中的时空码或通过使用基于来自 接收器 也可以从可用于数据流的多个代码集中选择每个数据流的代码集。

    Channel Quality Indicator Design for Multiple-User Multiple-Input and Multiple-Output in High-Speed Packet Access Systems
    5.
    发明申请
    Channel Quality Indicator Design for Multiple-User Multiple-Input and Multiple-Output in High-Speed Packet Access Systems 有权
    用于高速分组接入系统中多用户多输入和多输出的信道质量指示符设计

    公开(公告)号:US20110176484A1

    公开(公告)日:2011-07-21

    申请号:US12946702

    申请日:2010-11-15

    IPC分类号: H04W40/00

    摘要: A method for providing multiple-user multiple-input and multiple-output in a high-speed packet access system is described. A channel quality indicator is received from a dual-stream-capable wireless communication device requesting a single-stream transmission at a first data rate. The first data rate is adjusted by an adaptive outer loop margin to obtain a second data rate. A data stream is transmitted to the wireless communication device using the second data rate. A positive-acknowledgement/negative-acknowledgement (ACK/NACK) is received from the wireless communication device. The adaptive outer loop margin is adjusted according to the received ACK/NACK.

    摘要翻译: 描述了一种用于在高速分组接入系统中提供多用户多输入和多输出的方法。 从具有第一数据速率的单流传输请求的双流能力无线通信设备接收信道质量指示符。 第一数据速率由自适应外循环余量调整以获得第二数据速率。 使用第二数据速率将数据流发送到无线通信设备。 从无线通信设备接收到肯定确认/否定确认(ACK / NACK)。 根据接收的ACK / NACK调整自适应外环余量。

    Method and apparatus for preserving compatibility between legacy mode(s) of operation and new mode(s) of operation in a communication system
    6.
    发明授权
    Method and apparatus for preserving compatibility between legacy mode(s) of operation and new mode(s) of operation in a communication system 有权
    用于保持传统操作模式和通信系统中的新操作模式之间的兼容性的方法和装置

    公开(公告)号:US07450559B2

    公开(公告)日:2008-11-11

    申请号:US11250207

    申请日:2005-10-13

    IPC分类号: H04B7/212 H04Q7/20

    CPC分类号: H04W88/06 H04W72/048

    摘要: A method and an apparatus for preserving compatibility between legacy mode of operation and new mode of operation in a communication system, wherein allocation of resources is different in the legacy mode of operation and the new mode of operation is disclosed. Accordingly, an entity of a wireless access network, e.g., a base station, transmits signals comprising information about reallocation of resources from a legacy mode of operation to a new mode of operation. These signals are received at another entity of a wireless access network, e.g., a subscriber station, which then controls use by the subscriber station of resources allocated to the subscriber station in accordance with the information.

    摘要翻译: 一种用于在通信系统中保持传统操作模式和新操作模式之间的兼容性的方法和装置,其中在传统操作模式中资源分配不同,并且公开了新的操作模式。 因此,无线接入网络(例如,基站)的实体将信息包括关于资源从传统操作模式重新分配到新的操作模式的信息。 这些信号在无线接入网络(例如,用户台)的另一实体处被接收,然后用户台根据该信息控制用户台对用户台分配的资源的使用。

    Method and apparatus for reduced rank channel estimation in a communications system
    7.
    发明授权
    Method and apparatus for reduced rank channel estimation in a communications system 有权
    在通信系统中降低秩信道估计的方法和装置

    公开(公告)号:US06907270B1

    公开(公告)日:2005-06-14

    申请号:US09694432

    申请日:2000-10-23

    申请人: Josef J. Blanz

    发明人: Josef J. Blanz

    CPC分类号: H04B7/10 H04L25/0248

    摘要: A method and apparatus for estimating a communication channel in a wireless communication system having multiple transmitter antennas using reduced rank estimation. The method exploits redundant and/or a priori knowledge within a system to simplify the estimation calculations. In one embodiment, a covariance matrix is calculated and analyzed to determine if the channel parameters may be reduced for channel estimation. If not, all parameters are used, otherwise a reduced rank matrix is used for the calculation.

    摘要翻译: 一种使用减少秩估计来估计具有多个发射机天线的无线通信系统中的通信信道的方法和装置。 该方法利用系统内的冗余和/或先验知识来简化估计计算。 在一个实施例中,计算并分析协方差矩阵以确定信道参数是否可以减少用于信道估计。 如果不是,则使用所有参数,否则使用缩减秩矩阵进行计算。

    CQI reporting for MIMO transmission in a wireless communication system
    8.
    发明授权
    CQI reporting for MIMO transmission in a wireless communication system 有权
    用于无线通信系统中的MIMO传输的CQI报告

    公开(公告)号:US08825099B2

    公开(公告)日:2014-09-02

    申请号:US11969060

    申请日:2008-01-03

    摘要: Techniques for determining and reporting channel quality indicator (CQI) information are described. A user equipment (UE) may determine a transmit power per channelization code, POVSF, based on the available transmit power and a designated number of channelization codes, e.g., by uniformly distributing the available transmit power across all transport blocks and all of the designated number of channelization codes. The UE may estimate SINRs of multiple transport blocks based on POVSF, determine CQI indices for the transport blocks based on the SINRs, and send the CQI indices to a Node B. The Node B may send multiple transport blocks to the UE based on the CQI indices. The Node B may send the transport blocks (i) with the designated number of channelization codes at POVSF or (ii) with a second number of channelization codes at POVSF, with the transport block sizes being scaled based on the designated and second numbers of channelization codes.

    摘要翻译: 描述用于确定和报告信道质量指示符(CQI)信息的技术。 用户设备(UE)可以基于可用发射功率和指定数量的信道化码来确定每个信道化码POVSF的发射功率,例如通过在所有传输块上均匀分布可用的发射功率和所有指定的号码 的渠道化代码。 UE可以基于POVSF估计多个传输块的SINR,基于SINR确定传输块的CQI索引,并将CQI索引发送到节点B.节点B可以基于CQI发送多个传输块到UE 指数。 节点B可以以POVSF发送具有指定数量的信道化码的传输块(i),或者(ii)以POVSF的第二数量的信道化码发送传输块,其中传输块大小基于指定和第二数量的信道化 代码。

    Feedback of precoding control indication (PCI) and channel quality indication (CQI) in a wireless communication system
    9.
    发明授权
    Feedback of precoding control indication (PCI) and channel quality indication (CQI) in a wireless communication system 有权
    无线通信系统中预编码控制指示(PCI)和信道质量指示(CQI)的反馈

    公开(公告)号:US08699587B2

    公开(公告)日:2014-04-15

    申请号:US11841549

    申请日:2007-08-20

    IPC分类号: H04L27/28

    摘要: Techniques for sending feedback information in a wireless communication system are described. In one design, precoding control indication (PCI), rank, and channel quality indication (CQI) for data transmission from a transmitter to a receiver may be determined by evaluating different hypotheses. A report may be formed based on the PCI, rank and CQI. The PCI may include a precoding matrix or vector to use for the data transmission. The CQI may include at least one CQI value for at least one transport block to send for the data transmission. The rank and CQI may be combined based on a mapping. For example, the CQI may include one CQI value and fall within a first range of values if one transport block is preferred by the receiver. The CQI may include two CQI values and fall within a second range of values if two transport blocks are preferred.

    摘要翻译: 描述在无线通信系统中发送反馈信息的技术。 在一种设计中,可以通过评估不同的假设来确定用于从发射机到接收机的数据传输的预编码控制指示(PCI),秩和信道质量指示(CQI)。 可以基于PCI,等级和CQI形成报告。 PCI可以包括用于数据传输的预编码矩阵或向量。 CQI可以包括用于为了数据传输而发送的至少一个传输块的至少一个CQI值。 可以基于映射来组合秩和CQI。 例如,如果接收机优选一个传输块,则CQI可以包括一个CQI值并且落入第一值范围内。 如果两个传输块是优选的,则CQI可以包括两个CQI值并且落在值的第二范围内。

    Transmission structure supporting multi-user scheduling and MIMO transmission
    10.
    发明授权
    Transmission structure supporting multi-user scheduling and MIMO transmission 有权
    支持多用户调度和MIMO传输的传输结构

    公开(公告)号:US08638771B2

    公开(公告)日:2014-01-28

    申请号:US11502882

    申请日:2006-08-10

    IPC分类号: H04B7/212

    摘要: Techniques for transmitting data in a manner to support multi-user scheduling, multiple-input multiple-output (MIMO) transmission, and interference cancellation are described. A base station assigns multiple time segments of a transmission time interval (TTI) to at least one terminal, maps data for each terminal to at least one time segment assigned to the terminal, and spreads the data in each time segment with at least one channelization code used in the TTI. A terminal receives an assignment of at least one time segment from among multiple time segments of the TTI, obtains input samples for the at least one time segment, and despreads the input samples with the at least one channelization code used in the TTI.

    摘要翻译: 描述了以支持多用户调度,多输入多输出(MIMO)传输和干扰消除的方式发送数据的技术。 基站向至少一个终端分配传输时间间隔(TTI)的多个时间段,将每个终端的数据映射到分配给终端的至少一个时间段,并且在每个时间段中传播具有至少一个信道化的数据 TTI中使用的代码。 终端从TTI的多个时间段中接收至少一个时间段的分配,获得至少一个时间段的输入采样,并且用TTI中使用的至少一个信道化码解扩输入的采样。