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    Rate selection for a quasi-orthogonal communication system
    5.
    发明授权
    Rate selection for a quasi-orthogonal communication system 有权
    准正交通信系统的速率选择

    公开(公告)号：US07809336B2

    公开(公告)日：2010-10-05

    申请号：US11150417

    申请日：2005-06-10

    申请人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Tingfang Ji ,  Dhananjay Gore ,  Arak Sutivong

    发明人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Tingfang Ji ,  Dhananjay Gore ,  Arak Sutivong

    IPC分类号： H04B1/00 ,  H04B7/00

    CPC分类号： H04L1/0019 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/06 ,  H04L25/0212 ,  H04L25/0228 ,  H04L25/0242 ,  H04L25/0256

    摘要： To select a rate for a transmitter in a communication system, a receiver obtains a channel response estimate and a received SINR estimate for the transmitter, e.g., based on a pilot received from the transmitter. The receiver computes a hypothesized SINR for the transmitter based on the channel response estimate and the received SINR estimate. The receiver then selects a rate for the transmitter based on (1) the hypothesized SINR and (2) characterized statistics of noise and interference at the receiver for the transmitter, which may be given by a probability density function (PDF) of SINR loss with respect to the hypothesized SINR. A look-up table of rate versus hypothesized SINR may be generated a priori for the PDF of SINR loss. The receiver may then apply the hypothesized SINR for the transmitter to the look-up table, which then provides the rate for the transmitter.

    摘要翻译： 为了在通信系统中选择发射机的速率，接收机例如基于从发射机接收到的导频，获得用于发射机的信道响应估计和接收到的SINR估计。 接收机基于信道响应估计和接收的SINR估计来计算发射机的假设SINR。 接收机然后基于（1）假设的SINR和（2）用于发射机的接收机处的噪声和干扰的特征统计来选择发射机的速率，其可以由SINR丢失的概率密度函数（PDF）给出， 尊重假设的SINR。 速率与假设SINR的查找表可能会先于SINR损失的PDF生成。 然后，接收机可以将发射机的假设SINR应用于查找表，然后查找表提供发射机的速率。

    Reception of H-ARQ transmissions with interference cancellation in a quasi-orthogonal communication system
    8.
    发明授权
    Reception of H-ARQ transmissions with interference cancellation in a quasi-orthogonal communication system 有权
    在准正交通信系统中接收具有干扰消除的H-ARQ传输

    公开(公告)号：US07554948B2

    公开(公告)日：2009-06-30

    申请号：US11147830

    申请日：2005-06-07

    申请人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Dhananjay Gore ,  Tingfang Ji ,  Arak Sutivong

    发明人： Ayman Fawzy Naguib ,  Alexei Gorokhov ,  Dhananjay Gore ,  Tingfang Ji ,  Arak Sutivong

    IPC分类号： H04W4/00

    CPC分类号： H04L1/1819 ,  H04B2001/7152 ,  H04L5/0023 ,  H04L25/0224

    摘要： To receive packets with interference cancellation, block transmissions for the packets are received on time-frequency blocks used by these packets. Receiver spatial processing is performed on input symbols to obtain detected symbols. Each packet is demodulated and decoded based on all detected symbols obtained for all block transmissions received for the packet. For each packet that is decoded correctly, the transmission for the packet is terminated, the interference due to the packet is estimated, and the estimated interference is subtracted from the input symbols for all time-frequency blocks used by the packet. Receiver spatial processing is performed on the interference-canceled symbols to obtain new detected symbols for all time-frequency blocks used by all correctly decoded packets. Each packet decoded in error and overlapping at least partially with any correctly decoded packet may be demodulated and decoded based on all detected symbols available for that packet.

    摘要翻译： 为了接收具有干扰消除的分组，在这些分组使用的时间 - 频率块上接收分组的块传输。 对输入符号执行接收机空间处理以获得检测符号。 基于为分组接收到的所有块传输获得的所有检测到的符号，对每个分组进行解调和解码。 对于正确解码的每个分组，分组的传输被终止，估计由于分组引起的干扰，并且从分组使用的所有时间频率块的输入符号中减去所估计的干扰。 对干扰消除的符号进行接收机空间处理，以获得由所有正确解码的分组使用的所有时间频率块的新的检测符号。 至少部分地与任何正确解码的分组进行错误解码和重叠的每个分组可以基于可用于该分组的所有检测到的符号进行解调和解码。

    Power control and overlapping control for a quasi-orthogonal communication system
    9.
    发明授权
    Power control and overlapping control for a quasi-orthogonal communication system 有权
    准正交通信系统的功率控制和重叠控制

    公开(公告)号：US07512412B2

    公开(公告)日：2009-03-31

    申请号：US11158587

    申请日：2005-06-21

    申请人： Murat Mese ,  Ayman Fawzy Naguib ,  Arak Sutivong ,  Dhananjay Gore ,  Alexei Gorokhov ,  Tingfang Ji

    发明人： Murat Mese ,  Ayman Fawzy Naguib ,  Arak Sutivong ,  Dhananjay Gore ,  Alexei Gorokhov ,  Tingfang Ji

    IPC分类号： H04B7/00 ,  H04Q7/20

    CPC分类号： H04W52/243 ,  H04W52/34

    摘要： Techniques for controlling transmit power and the amount of overlapping in a quasi-orthogonal system are described. A base station for a sector receives transmissions from terminals in that sector and neighbor sectors and determines performance metrics (e.g., overall throughput) and/or QoS metrics (e.g., minimum data rate) for the terminals in the sector. The base station updates an overlapping factor based on the performance metrics and updates a QoS power control parameter based on the QoS metrics. The overlapping factor indicates the average number of overlapping transmissions sent simultaneously on each time-frequency block usable for data transmission. The QoS power control parameter ensures that the terminals in the sector can achieve minimum QoS requirements. A power control mechanism with multiple loops is used to adjust the transmit power of each terminal. The overlapping factor and QoS power control parameter are updated by two of the loops.

    摘要翻译： 描述了用于控制发射功率的技术和准正交系统中的重叠量。 用于扇区的基站从该扇区和相邻扇区中的终端接收传输，并确定扇区中的终端的性能度量（例如总吞吐量）和/或QoS度量（例如，最小数据速率）。 基站基于性能度量来更新重叠因子，并且基于QoS度量来更新QoS功率控制参数。 重叠因子表示可用于数据传输的每个时间频率块上同时发送的重叠传输的平均数。 QoS功率控制参数确保了扇区中的终端可以达到最低的QoS要求。 使用具有多个环路的功率控制机构来调整每个终端的发射功率。 重叠因子和QoS功率控制参数由两个循环更新。