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    SDMA for WCDMA
    1.
    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。

    Multiple modulation technique for use in a communication system
    2.
    发明申请
    Multiple modulation technique for use in a communication system 有权
    用于通信系统的多调制技术

    公开(公告)号：US20060133455A1

    公开(公告)日：2006-06-22

    申请号：US11315743

    申请日：2005-12-21

    申请人： Avneesh Agrawal ,  Aamod Khandekar ,  Arak Sutivong ,  Alexei Gorokhov

    发明人： Avneesh Agrawal ,  Aamod Khandekar ,  Arak Sutivong ,  Alexei Gorokhov

    IPC分类号： H04B1/707 ,  H04K1/10

    CPC分类号： H04L27/0008 ,  H04L27/2627 ,  H04L27/2649

    摘要： A method for receiving an indication to apply a first modulation scheme to modulate one or more segments of the first portion; determining a first segment set, having at least one segment of the first portion for applying said first modulation scheme; modulating said first segment set of the first portion using said first modulation scheme; and modulating one or more segments of the second portion using a second scheme, different from first modulation scheme.

    摘要翻译： 一种用于接收用于应用第一调制方案以调制所述第一部分的一个或多个段的指示的方法; 确定具有用于施加所述第一调制方案的所述第一部分的至少一个段的第一段集合; 使用所述第一调制方案调制所述第一部分的所述第一段集合; 以及使用与第一调制方案不同的第二方案来调制第二部分的一个或多个段。

    Rate selection for a quasi-orthogonal communication system
    10.
    发明申请
    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：US20060234646A1

    公开(公告)日：2006-10-19

    申请号：US11150417

    申请日：2005-06-10

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

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

    IPC分类号： H04B7/00 ,  H04B1/00

    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。