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    Mitigating impact of power imbalance on remote data rate in wireless local area network
    1.
    发明公开
    Mitigating impact of power imbalance on remote data rate in wireless local area network 审中-公开
    Abschwächungder Auswirkung eines Leistungsungleichgewichts auf Ferndatenrate in drahtlosem lokalem Netzwerk

    公开(公告)号：EP2894911A1

    公开(公告)日：2015-07-15

    申请号：EP14199624.9

    申请日：2012-07-16

    申请人： Qualcomm Incorporated

    发明人： Sadek, Ahmed K. ,  Mantravadi, Ashok ,  Kadous, Tamer

    IPC分类号： H04W52/32 ,  H04W52/24 ,  H04L1/18

    CPC分类号： H04W52/325 ,  H04L1/0001 ,  H04L1/1692 ,  H04L1/1854 ,  H04W52/244

    摘要： A method for mitigating the impact of a power imbalance on a remote data rate in a wireless local area network (WLAN) includes transmitting a wireless local area network (WLAN) acknowledgement (ACK) packet at a first transmit power level to a remote device. The method further includes transmitting, to the remote device, a WLAN data packet at a second transmit power level that is lower than the first transmit power level of the WLAN ACK packet. Another method for mitigating the impact of a power imbalance on a remote data rate in a wireless local area network (WLAN) may include selecting a wireless local area network (WLAN) acknowledgement (ACK) packet transmit rate independent from a rate at which a WLAN data packet is received. This method further includes transmitting, to a remote device, a WLAN ACK packet at the selected WLAN ACK packet transmit rate.

    摘要翻译： 一种用于减轻功率不平衡对无线局域网（WLAN）中的远程数据速率的影响的方法包括以第一发射功率电平向远程设备发送无线局域网（WLAN）确认（ACK）分组。 该方法还包括以低于WLAN ACK分组的第一发射功率电平的第二发射功率电平向远程设备发送WLAN数据分组。 用于减轻功率不平衡对无线局域网（WLAN）中的远程数据速率的影响的另一种方法可以包括：选择无线局域网（WLAN）确认（ACK）分组传输速率，与WLAN的速率无关 接收数据包。 该方法还包括以所选择的WLAN ACK分组传输速率向远程设备发送WLAN ACK分组。

    Method and apparatus for broadcast multicast service in an ultra mobile broadband network
    4.
    发明公开
    Method and apparatus for broadcast multicast service in an ultra mobile broadband network 审中-公开
    广播组播广播组织中的超级用户Breitbandnetzwerk的Verfahren und Vorrichtungfüreinen

    公开(公告)号：EP2237579A2

    公开(公告)日：2010-10-06

    申请号：EP10170793.3

    申请日：2007-07-30

    申请人： QUALCOMM Incorporated

    发明人： Agashe, Parag Arun ,  Bhushan, Naga ,  Kadous, Tamer ,  Sarkar, Sandip

    IPC分类号： H04W4/06 ,  H04L5/02

    CPC分类号： H04L27/3488 ,  H04L12/1886 ,  H04L12/189 ,  H04L27/2602 ,  H04N21/6131 ,  H04N21/631 ,  H04N21/6405 ,  H04W72/005

    摘要： A method and apparatus for broadcast multicast service in an ultra mobile broadband network is provided. An apparatus is provided which is operable in a wireless communication system to provide a means for mapping broadcast flows to a broadcast multicast logical channel and transmitting the broadcast multicast logic channel on an aggregation of broadcast physical channels, where each of the aggregation of the broadcast physical channels is uniquely characterized by a subband interlace multiplex triple (SIMT). Radio configurations to support the ultra mobile broadband network are also provided.

    摘要翻译： 提供了一种在超移动宽带网络中广播多播服务的方法和装置。 提供了一种可在无线通信系统中操作以提供用于将广播流映射到广播多播逻辑信道的装置并且在广播物理信道的聚合上发送广播多播逻辑信道的装置，其中广播物理 信道的唯一特征在于子带交错多路复用（SIMT）。 还提供了支持超移动宽带网络的无线电配置。

    Channel estimation for simultaneous support of MISO and MIMO receivers
    5.
    发明公开
    Channel estimation for simultaneous support of MISO and MIMO receivers 有权
    Kan ern ern on on on ern ern ern ern ern ern ern ern ern ern ern ern ern ern ern ern ern

    公开(公告)号：EP2202928A1

    公开(公告)日：2010-06-30

    申请号：EP10157883.9

    申请日：2004-12-03

    申请人： Qualcomm Incorporated

    发明人： Gore, Dhananjay,Ashok ,  Agrawal, Avneesh ,  Kadous, Tamer

    IPC分类号： H04L25/02 ,  H04L27/26 ,  H04B7/06

    CPC分类号： H04L25/0226 ,  H04B7/0452 ,  H04B7/0684 ,  H04L27/2613

    摘要： A method of performing channel estimation at a receiver in a wireless multi-antenna communication system, comprising: obtaining, via R receive antennas, M sets of R received pilot symbols for M sets of T scaled pilot symbols generated with M different vectors of a matrix and transmitted via T transmit antennas, where R and T are integers greater than one and M is an integer equal to or greater than T wherein each vector includes T coefficients, and wherein the coefficients in the M vectors are selected to facilitate channel estimation by both receivers with a single antenna and receivers with multiple antennas; and, performing a matrix multiply of the M sets of R received pilot symbols with an inverse of the matrix to obtain estimates of R times T channel gains between the T transmit antennas and the R receive antennas. The multi-antenna communication system utilizes orthogonal frequency division multiplexing (OFDM), and each of the R pilot symbols in each set is received by a respective one of the R receiver antennas on a group of P subbands.

    摘要翻译： 一种在无线多天线通信系统中的接收机处执行信道估计的方法，包括：通过R个接收天线获得用M个不同向量矩阵生成的M个T比例导频符号的M个接收导频符号的M组 并通过T发射天线发送，其中R和T是大于1的整数，M是等于或大于T的整数，其中每个向量包括T个系数，并且其中选择M个向量中的系数以促进两者的信道估计 具有单个天线的接收机和具有多个天线的接收机; 并且使用所接收的导频符号的M组的矩阵乘法与所述矩阵的逆矩阵进行矩阵乘法，以获得所述T个发射天线和所述R个接收天线之间的R次T信道增益的估计。 多天线通信系统利用正交频分复用（OFDM），并且每组中的每个R导频符号由一组P个子带中的R个接收机天线中的相应一个接收。

    Incremental redundancy transmission in a MIMO communication system
    6.
    发明公开
    Incremental redundancy transmission in a MIMO communication system 有权
    MIMO通信系统中的增量冗余传输

    公开(公告)号：EP2146455A2

    公开(公告)日：2010-01-20

    申请号：EP09174529.9

    申请日：2004-09-09

    申请人： Qualcomm Incorporated

    发明人： Kadous, Tamer

    IPC分类号： H04L1/18 ,  H04L1/00

    CPC分类号： H04L1/1819 ,  H03M13/33 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0048 ,  H04L1/005 ,  H04L1/0071 ,  H04L1/0618 ,  H04L1/1671 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2626 ,  H04L27/2647

    摘要： For an incremental redundancy (IR) transmission in a MIMO system, a transmitter processes (e.g., encodes, partitions, interleaves, and modulates) a data packet based on a selected rate to obtain multiple data symbol blocks. The transmitter transmits one data symbol block at a time until a receiver correctly recovers the data packet or all blocks are transmitted. Whenever a data symbol block is received from the transmitter, the receiver detects a received symbol block to obtain a detected symbol block, processes (e.g., demodulates, deinterleaves, reassembles, and decodes) all detected symbol blocks obtained for the data packet, and provides a decoded packet. If the decoded packet is in error, then the receiver repeats the processing when another data symbol block is received for the data packet.; The receiver may also perform iterative detection and decoding on the received symbol blocks for the data packet multiple times to obtain the decoded packet.

    摘要翻译： 对于MIMO系统中的递增冗余（IR）传输，发射机基于选择的速率处理（例如，编码，分割，交织和调制）数据分组以获得多个数据符号块。 发射机一次发送一个数据符号块，直到接收机正确恢复数据包或发送所有块。 每当从发射机接收到数据符号块时，接收机检测接收到的符号块以获得检测到的符号块，处理（例如，解调，解交织，重组和解码）为数据包获得的所有检测到的符号块，并且提供 解码的数据包。 如果解码分组出错，则当接收到另一个数据分组的数据符号块时，接收机重复处理。 接收机还可以对数据分组的接收符号块多次执行迭代检测和解码以获得解码分组。

    Iterative detection and decoding in a MIMO communication system
    7.
    发明公开
    Iterative detection and decoding in a MIMO communication system 有权
    在einem MIMO系统中的迭代Detektion和Dekodierung

    公开(公告)号：EP1959600A1

    公开(公告)日：2008-08-20

    申请号：EP08157011.1

    申请日：2004-09-09

    申请人： Qualcomm Incorporated

    发明人： Kadous, Tamer

    IPC分类号： H04J11/00 ,  H03D1/00

    CPC分类号： H04L1/1819 ,  H03M13/33 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0048 ,  H04L1/005 ,  H04L1/0071 ,  H04L1/0618 ,  H04L1/1671 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2626 ,  H04L27/2647

    摘要： For an incremental redundancy (IR) transmission in a MIMO system, a transmitter processes (e.g., encodes, partitions, interleaves, and modulates) a data packet based on a selected rate to obtain multiple data symbol blocks. The transmitter transmits one data symbol block at a time until a receiver correctly recovers the data packet or all blocks are transmitted. Whenever a data symbol block is received from the transmitter, the receiver detects a received symbol block to obtain a detected symbol block, processes (e.g., demodulates, deinterleaves, re-assembles, and decodes) all detected symbol blocks obtained for the data packet, and provides a decoded packet. If the decoded packet is in error, then the receiver repeats the processing when another data symbol block is received for the data packet. The receiver may also perform iterative detection and decoding on the received symbol blocks for the data packet multiple times to obtain the decoded packet.

    摘要翻译： 对于MIMO系统中的增量冗余（IR）传输，发射机基于所选择的速率处理（例如，编码，分割，交织和调制）数据分组以获得多个数据符号块。 发射机一次发送一个数据符号块，直到接收机正确地恢复数据包或所有块都被发送。 每当从发射机接收到数据符号块时，接收机检测接收的符号块以获得检测到的符号块，处理（例如，解调，解交织，重新组合和解码）为数据分组获得的所有检测到的符号块， 并提供解码的分组。 如果解码的分组是错误的，则接收机重复该数据分组的另一个数据符号块的处理。 接收机也可以多次对数据分组的接收符号块执行迭代检测和解码，以获得解码的分组。

    Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system
    8.
    发明公开
    Data transmission with non-uniform distribution of data rates for a multiple-input multiple-output (MIMO) system 有权
    数据速率用于与多输入多输出的系统NON形分布COMMUNICATION

    公开(公告)号：EP1786134A1

    公开(公告)日：2007-05-16

    申请号：EP07103165.2

    申请日：2003-02-27

    申请人： Qualcomm Incorporated

    发明人： Kadous, Tamer

    IPC分类号： H04L1/00 ,  H04L1/20

    CPC分类号： H04L1/20 ,  H04B7/0417 ,  H04L1/0002 ,  H04L1/0017 ,  H04L1/06 ,  H04L1/0631

    摘要： Techniques to determine data rates for a number of data streams transmitted via a number of transmission channels (or transmit antennas) in a multi-channel (e.g. MIMO) communications system. In one method, the "required" SNR for each data rate to be used is initially determined, with at least two data rates being unequal. The "effective" SNR for each data stream is also determined based on the received SNR and successive interference cancellation processing at the receiver to recover the data streams. The required SNR for each data stream is then compared against its effective SNR. The data rates are deemed to be supported if the required SNR for each data stream is less than or equal to its effective SNR. A number of sets of data rates may be evaluated, and the rate set associated with the minimum received SNR may be selected for use for the data streams.

    摘要翻译： 技术来确定的矿山的数据速率将多个数据流通过多个传输信道的反式mitted（或发送天线）中的多通道（例如，MIMO）通信系统。在一个方法中，“必需的” SNR为每个数据速率是 使用最初开采的确定性，具有至少两个数据速率不相等。 “有效” SNR每一个数据流是确定性的，因此在接收机处恢复数据流基于所接收的SNR和连续干扰消除处理开采。 用于每个数据流的所需SNR然后针对其有效SNR相比。 数据速率被认为如果每个数据流所需要的SNR小于或等于它的有效SNR得到支持。 多组数据速率可以被评估，并获得具有最小相关联的速率组SNR可以用于将数据流进行选择。