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    Power control and overlapping control for a quasi-orthogonal communication system
    34.
    发明申请
    Power control and overlapping control for a quasi-orthogonal communication system 有权

    公开(公告)号：US20060211441A1

    公开(公告)日：2006-09-21

    申请号：US11158587

    申请日：2005-06-21

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

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

    IPC分类号： H04B7/00

    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.

    Reception of H-ARQ transmissions with interference cancellation in a quasi-orthogonal communication system
    36.
    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
    37.
    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。

    Shared signaling channel
    38.
    发明申请
    Shared signaling channel 有权
    共享信令通道

    公开(公告)号：US20070097853A1

    公开(公告)日：2007-05-03

    申请号：US11261158

    申请日：2005-10-27

    申请人： Aamod Khandekar ,  Alexei Gorokhov ,  Dhananjay Gore ,  Edward Teague ,  Min Dong

    发明人： Aamod Khandekar ,  Alexei Gorokhov ,  Dhananjay Gore ,  Edward Teague ,  Min Dong

    IPC分类号： H04J11/00 ,  H04B7/216 ,  H04B7/00

    CPC分类号： H04L5/0044 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053

    摘要： A shared signaling channel can be used in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system to provide signaling, acknowledgement, and power control messages to access terminals within the system. The shared signaling channel can be assigned to a predetermined number of sub-carriers within any frame. The assignment of a predetermined number of sub-carriers to the shared signaling channel establishes a fixed bandwidth overhead for the channel. The actual sub-carriers assigned to the channel can be varied periodically, and can vary according to a predetermined frequency hopping schedule. The amount of signal power allocated to the signaling channel can vary on a per symbol basis depending on the power requirements of the communication link. The shared signaling channel can direct each message carried on the channel to one or more access terminals. Unicast messages allow the channel power to be controlled per the needs of individual communication links.

    摘要翻译： 可以在正交频分多址（OFDMA）通信系统中使用共享信令信道，以向系统内的接入终端提供信令，确认和功率控制消息。 共享信令信道可以被分配给任何帧内的预定数量的子载波。 将预定数量的子载波分配给共享信令信道为信道建立固定的带宽开销。 分配给信道的实际子载波可以周期性地变化，并且可以根据预定的跳频调度而变化。 分配给信令信道的信号功率的量可以根据通信链路的功率要求在每个符号的基础上变化。 共享信令信道可以将信道上承载的每个消息引导到一个或多个接入终端。 单播消息允许根据各个通信链路的需要来控制信道功率。

    SDMA for WCDMA
    39.
    发明申请
    SDMA for WCDMA 有权
    SDMA用于WCDMA

    公开(公告)号：US20070019535A1

    公开(公告)日：2007-01-25

    申请号：US11213463

    申请日：2005-08-26

    申请人： Sharad Sambhwani ,  Dhananjay Gore ,  Avneesh Agrawal ,  Arak Sutivong ,  Alexei Gorokhov

    发明人： Sharad Sambhwani ,  Dhananjay Gore ,  Avneesh Agrawal ,  Arak Sutivong ,  Alexei Gorokhov

    IPC分类号： H04J11/00 ,  H04B7/216

    CPC分类号： H04J13/0048 ,  H04J13/18

    摘要： Systems and methodologies are described that facilitate increasing system capacity in a code-limited WCDMA (e.g., TDD, FDD, . . . ) wireless communication environment. According to one aspect, a larger code space can be defined by introducing multiple code clusters within a sector, wherein each cluster has a unique scrambling code. Codes within a cluster can have orthogonal Walsh sequences that can be assigned to user devices to facilitate communicating over a wireless network and can overlap with codes in another cluster. The unique scrambling code assigned to each cluster can ensure that duplicate Walsh sequences in another cluster in the same sector appear as a pseudo-noise codes.

    摘要翻译： 描述了在有限的WCDMA（例如，TDD，FDD，...）无线通信环境中增加系统容量的系统和方法。 根据一个方面，可以通过在扇区内引入多个码集来定义更大的码空间，其中每个群集具有唯一的扰码。 群集内的代码可以具有可被分配给用户设备的正交沃尔什序列，以便于通过无线网络进行通信并且可以与另一个群集中的代码重叠。 分配给每个簇的唯一扰码可以确保同一扇区中另一个簇中的重复沃尔什序列显示为伪噪声码。

    Channel structures for a quasi-orthogonal multiple-access communication system
    40.
    发明申请
    Channel structures for a quasi-orthogonal multiple-access communication system 有权

    公开(公告)号：US20060209754A1

    公开(公告)日：2006-09-21

    申请号：US11129140

    申请日：2005-05-13

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

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

    IPC分类号： H04Q7/00

    CPC分类号： H04J11/005 ,  H04B1/7143

    摘要： A channel structure has at least two channel sets. Each channel set contains multiple channels and is associated with a specific mapping of the channels to the system resources available for data transmission. Each channel set may be defined based on a channel tree having a hierarchical structure. To achieve intra-cell interference diversity, the channel-to-resource mapping for each channel set is pseudo-random with respect to the mapping for each remaining channel set. In each scheduling interval, terminals are scheduled for transmission on the forward and/or reverse link. The scheduled terminals are assigned channels from the channel sets. Multiple terminals may use the same system resources and their overlapping transmissions may be separated in the spatial domain. For example, beamforming may be performed to send multiple overlapping transmissions on the forward link, and receiver spatial processing may be performed to separate out multiple overlapping transmissions received on the reverse link.