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    Power scaling for retransmissions in uplink MIMO hybrid ARQ
    1.
    发明授权
    Power scaling for retransmissions in uplink MIMO hybrid ARQ 有权
    上行链路MIMO混合ARQ中的重传功率缩放

    公开(公告)号：US08891677B2

    公开(公告)日：2014-11-18

    申请号：US13292659

    申请日：2011-11-09

    申请人： Guosen Yue ,  Narayan Prasad ,  Meilong Jiang ,  Sampath Rangarajan

    发明人： Guosen Yue ,  Narayan Prasad ,  Meilong Jiang ,  Sampath Rangarajan

    IPC分类号： H04L27/00 ,  H04L25/03 ,  H04L5/00 ,  H04W52/48 ,  H04L1/18 ,  H04L1/00

    CPC分类号： H04L5/0055 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1819 ,  H04L1/1867 ,  H04L25/03923 ,  H04W52/48

    摘要： A method includes obtaining a precoder for retransmission of one codeword responsive to known precoding matrix P of rank r and modulation and coding scheme MCS assignments used in an original transmission, and a desired retransmission rank r′; and scaling power in the retransmission responsive to at least two of 1) information parameters Index of UL precoder in previous transmission, 2) rank r of uplink UL precoder in previous transmission, 3) MCS assignments in previous retransmission (MCSi), 4) rank r′ for UL retransmission 5) number of retransmit antennas used for codeword to be retransmitted x in previous transmission, 6) number of retransmit antennas x′ used for retransmission, 7) precoder for UL retransmission, 8) UL precoders and channel information for previous transmission, and 8) latest channel measurements.

    摘要翻译： 一种方法包括响应于已知的秩r的预编码矩阵P以及在原始传输中使用的调制和编码方案MCS分配以及期望的重传等级r'，获得用于重传一个码字的预编码器。 并且响应于以前的传输中的UL预编码器的信息参数索引中的至少两个，2）先前传输中的上行链路UL预编码器的秩r，先前传输中的MCS分配（MCSi），4）等级 r'用于UL重传5）用于先前传输中的要重发的码字的重传天线数x 6用于重传的重传天线数x'7）用于UL重传的预编码器8）UL预编码器和用于前一个传输的信道信息 传输，以及8）最新的频道测量。

    Selective joint demodulation
    3.
    发明授权
    Selective joint demodulation 有权
    选择性联合解调

    公开(公告)号：US08503554B2

    公开(公告)日：2013-08-06

    申请号：US13088955

    申请日：2011-04-18

    申请人： Narayan Prasad ,  Guosen Yue ,  Mohammad A. Khojastepour ,  Meilong Jiang ,  Sampath Rangarajan

    发明人： Narayan Prasad ,  Guosen Yue ,  Mohammad A. Khojastepour ,  Meilong Jiang ,  Sampath Rangarajan

    IPC分类号： H04L27/28

    CPC分类号： H04B7/0452 ,  H04J11/0046 ,  H04L5/0023 ,  H04L25/03331 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/34 ,  H04W72/042 ,  H04W72/12

    摘要： Systems, methods and apparatuses for jointly demodulating data signals are disclosed. In accordance with the method, pilot signals are received from a base station and are processed. In addition, from a set of expected co-scheduled data streams, a subset of the co-scheduled data streams that are actually transmitted by the base station are determined based on the pilot signals. Further, a group of the transmitted co-scheduled data streams are selected from the determined subset. The data signals are received and jointly demodulated by employing the selected group of co-scheduled data streams and by suppressing non-selected data streams from the determined subset.

    摘要翻译： 公开了用于联合解调数据信号的系统，方法和装置。 根据该方法，从基站接收导频信号并进行处理。 另外，从一组期望的共同调度数据流中，基于导频信号确定由基站实际发送的协同调度数据流的子集。 此外，从确定的子集中选择一组发送的协调调度数据流。 通过采用所选择的协同调度数据流组并通过从所确定的子集抑制未选择的数据流来接收和联合地解调数据信号。

    Power Scaling for Retransmissions in Uplink MIMO Hybrid ARQ
    7.
    发明申请
    Power Scaling for Retransmissions in Uplink MIMO Hybrid ARQ 有权
    上行MIMO混合ARQ中的重传功率缩放

    公开(公告)号：US20120114030A1

    公开(公告)日：2012-05-10

    申请号：US13292659

    申请日：2011-11-09

    申请人： Guosen Yue ,  Narayan Prasad ,  Meilong Jiang ,  Sampath Rangarajan

    发明人： Guosen Yue ,  Narayan Prasad ,  Meilong Jiang ,  Sampath Rangarajan

    IPC分类号： H04L25/49 ,  H04B17/00

    CPC分类号： H04L5/0055 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1819 ,  H04L1/1867 ,  H04L25/03923 ,  H04W52/48

    摘要： A method includes obtaining a precoder for retransmission of one codeword responsive to known precoding matrix P of rank r and modulation and coding scheme MCS assignments used in an original transmission, and a desired retransmission rank r′; and scaling power in the retransmission responsive to at least two of 1) information parameters Index of UL precoder in previous transmission, 2) rank r of uplink UL precoder in previous transmission, 3) MCS assignments in previous retransmission (MCSi), 4) rank r′ UL retransmission 5) number of retransmit antennas used thr codeword to be retransmitted x in previous transmission, 6) number of retransmit antennas x′ used for retransmission, 7) precoder for UL retransmission, 8) UL precoders and channel information for previous transmission, and 8) latest channel measurements.

    摘要翻译： 一种方法包括响应于已知的秩r的预编码矩阵P以及在原始传输中使用的调制和编码方案MCS分配以及期望的重传等级r'，获得用于重传一个码字的预编码器。 并且响应于以前的传输中的UL预编码器的信息参数索引中的至少两个，2）先前传输中的上行链路UL预编码器的秩r，先前传输中的MCS分配（MCSi），4）等级 r'UL重传5）先前传输中要重传的码字x所使用的重传天线数量6）重传用的重传天线数x'7）用于UL重传的预编码器8）用于先前传输的UL预编码器和信道信息 ，和8）最新的频道测量。

    MU-MIMO-OFDMA MULTI-RANK CQI AND PRECODER SIGNALING SCHEMES
    8.
    发明申请
    MU-MIMO-OFDMA MULTI-RANK CQI AND PRECODER SIGNALING SCHEMES 有权
    MU-MIMO-OFDMA多级CQI和预编码信令方案

    公开(公告)号：US20110243019A1

    公开(公告)日：2011-10-06

    申请号：US13080416

    申请日：2011-04-05

    申请人： Narayan Prasad ,  Guosen Yue ,  Mohammad A. Khojastepour ,  Meilong Jiang ,  Sampath Rangarajan

    发明人： Narayan Prasad ,  Guosen Yue ,  Mohammad A. Khojastepour ,  Meilong Jiang ,  Sampath Rangarajan

    IPC分类号： H04L12/26 ,  H04W4/00

    CPC分类号： H04W24/08 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0486 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/085

    摘要： Methods and systems for determining attributes of communication channels of MU-MIMO users in an (OFDMA) system are disclosed. One method includes receiving from a base station, for at least one sub-band of contiguous sub-carriers, an indication of an estimate of or an upper-bound on a total number of streams that are co-scheduled by the base station on the at least one sub-band. The method further includes determining one or more signal quality measures for the at least one sub-band based on the estimate of or the upper-bound on the total number of streams that are scheduled by the base station on the at least one sub-band in accordance with at least one of single-user scheduling rules or multi-user scheduling rules. In addition, the method includes transmitting to the base station an indication of the one or more signal quality measures and at least one tag identifying each signal quality measure as being determined in accordance with the single-user scheduling rules or the multi-user scheduling rules.

    摘要翻译： 公开了一种用于确定（OFDMA）系统中MU-MIMO用户的通信信道属性的方法和系统。 一种方法包括从基站接收对于连续子载波的至少一个子带，对由基站在...上共同调度的流的总数的估计或上限的指示 至少一个子带。 所述方法还包括基于由所述基站在所述至少一个子带上调度的流的总数的估计或所述上限来确定所述至少一个子带的一个或多个信号质量度量 根据单用户调度规则或多用户调度规则中的至少一个。 此外，该方法包括向基站发送一个或多个信号质量测量的指示，以及将每个信号质量测量标识为根据单用户调度规则或多用户调度规则确定的至少一个标签 。

    MU-MIMO-OFDMA multi-rank CQI and precoder signaling schemes
    10.
    发明授权
    MU-MIMO-OFDMA multi-rank CQI and precoder signaling schemes 有权
    MU-MIMO-OFDMA多级CQI和预编码器信令方案

    公开(公告)号：US08705392B2

    公开(公告)日：2014-04-22

    申请号：US13080416

    申请日：2011-04-05

    申请人： Narayan Prasad ,  Guosen Yue ,  Mohammad A. Khojastepour ,  Meilong Jiang ,  Sampath Rangarajan

    发明人： Narayan Prasad ,  Guosen Yue ,  Mohammad A. Khojastepour ,  Meilong Jiang ,  Sampath Rangarajan

    IPC分类号： H04L12/26 ,  H04W4/00 ,  H04B7/02

    CPC分类号： H04W24/08 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0486 ,  H04W52/346 ,  H04W72/0406 ,  H04W72/085

    摘要： Methods and systems for determining attributes of communication channels of MU-MIMO users in an (OFDMA) system are disclosed. One method includes receiving from a base station, for at least one sub-band of contiguous sub-carriers, an indication of an estimate of or an upper-bound on a total number of streams that are co-scheduled by the base station on the at least one sub-band. The method further includes determining one or more signal quality measures for the at least one sub-band based on the estimate of or the upper-bound on the total number of streams that are scheduled by the base station on the at least one sub-band in accordance with at least one of single-user scheduling rules or multi-user scheduling rules. In addition, the method includes transmitting to the base station an indication of the one or more signal quality measures and at least one tag identifying each signal quality measure as being determined in accordance with the single-user scheduling rules or the multi-user scheduling rules.

    摘要翻译： 公开了一种用于确定（OFDMA）系统中MU-MIMO用户的通信信道属性的方法和系统。 一种方法包括从基站接收对于连续子载波的至少一个子带，对由基站在...上共同调度的流的总数的估计或上限的指示 至少一个子带。 所述方法还包括基于由所述基站在所述至少一个子带上调度的流的总数的估计或所述上限来确定所述至少一个子带的一个或多个信号质量度量 根据单用户调度规则或多用户调度规则中的至少一个。 此外，该方法包括向基站发送一个或多个信号质量测量的指示，以及标识每个信号质量测量的至少一个标签，根据单用户调度规则或多用户调度规则确定 。