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    MULTI-TIER NETWORK INTERFERENCE MITIGATION
    62.
    发明申请
    MULTI-TIER NETWORK INTERFERENCE MITIGATION 审中-公开
    多层网络干扰减轻

    公开(公告)号：US20110002284A1

    公开(公告)日：2011-01-06

    申请号：US12823261

    申请日：2010-06-25

    Applicant: SHILPA TALWAR ,  KERSTIN JOHNSSON ,  NAGEEN HIMAYAT ,  SHU-PING YEH ,  JAROSLAW J. SYDIR

    Inventor： SHILPA TALWAR ,  KERSTIN JOHNSSON ,  NAGEEN HIMAYAT ,  SHU-PING YEH ,  JAROSLAW J. SYDIR

    IPC: H04W16/12

    CPC classification number: H04W16/12 ,  H04L12/66 ,  H04W52/10 ,  H04W52/146 ,  H04W84/045

    Abstract: In some embodiments, a femto access point comprises a baseband processor, an RF modulator/demodulator coupled to the baseband processor to modulate/demodulate data for communication within a predetermined frequency range, one or more antennas to coupled to the RF modulator/demodulator to transceive information with one or more wireless devices via a wireless communication link, and a control module to implement a femto transmission-free zone in at least one of a time domain or a frequency domain and in which the femto access point does not transmit data. Other embodiments may be described.

    Abstract translation: 在一些实施例中，毫微微接入点包括基带处理器，耦合到基带处理器的RF调制器/解调器，以调制/解调用于在预定频率范围内通信的数据，一个或多个天线以耦合到RF调制器/解调器以收发 通过无线通信链路与一个或多个无线设备的信息;以及控制模块，用于在时域或频域中的至少一个中实现毫微微无传送区域，并且毫微微接入点不发送数据。 可以描述其他实施例。

    PROBABILISTIC INTERFERENCE MITIGATION FOR WIRELESS CELLULAR NETWORKS
    64.
    发明申请
    PROBABILISTIC INTERFERENCE MITIGATION FOR WIRELESS CELLULAR NETWORKS 审中-公开
    无线蜂窝网络的概率干扰减轻

    公开(公告)号：US20090170497A1

    公开(公告)日：2009-07-02

    申请号：US11965788

    申请日：2007-12-28

    Applicant: Guowang Miao ,  Nageen Himayat ,  Shilpa Talwar

    Inventor： Guowang Miao ,  Nageen Himayat ,  Shilpa Talwar

    IPC: H04Q7/20

    CPC classification number: H04W72/082

    Abstract: An interference mitigation system randomizes transmissions to cell-edge users by carefully controlling the probability of transmission to these users, thereby creating a virtual fractional frequency system that does not require extensive frequency management and coordination across the network. In some embodiments, the interference mitigation system identifies severely interfered links and reduces the probability of transmission on these links, with the result being a reduced probability of interference.

    Abstract translation: 干扰减轻系统通过仔细控制传输给这些用户的概率来将传输随机化到小区边缘用户，从而创建不需要跨网络广泛的频率管理和协调的虚拟分数频率系统。 在一些实施例中，干扰减轻系统识别严重干扰的链路并降低这些链路上的传输概率，结果是减少的干扰概率。

    TRANSMISSION SIGNALING TECHNIQUES TO ENHANCE RECEIVER INTERFERENCE MITIGATION PERFORMANCE
    65.
    发明申请
    TRANSMISSION SIGNALING TECHNIQUES TO ENHANCE RECEIVER INTERFERENCE MITIGATION PERFORMANCE 有权
    传输信号技术提高接收干扰抑制性能

    公开(公告)号：US20080130506A1

    公开(公告)日：2008-06-05

    申请号：US11567004

    申请日：2006-12-05

    Applicant: Shilpa Talwar ,  Nageen Himayat ,  Wan Choi ,  Qinghua Li

    Inventor： Shilpa Talwar ,  Nageen Himayat ,  Wan Choi ,  Qinghua Li

    IPC: H04J3/14 ,  H04L1/00

    CPC classification number: H04L1/0625 ,  H04L27/2608 ,  H04L27/2655 ,  H04L2001/0092

    Abstract: Techniques are described that can be used to maximize the interference suppression capability of space-time coded systems by managing synchronous transmission signaling. To enhance the probability of the occurrence synchronous interference and accordingly increase interference cancellation capability at a receiver, a network of at least two transmitters in a network may utilize similar structured coding schemes and coordinate transmission so that the receiver receives co-channel signals synchronously.

    Abstract translation: 描述了可以用于通过管理同步传输信令来最大化空时编码系统的干扰抑制能力的技术。 为了增强发生同步干扰的概率并相应地增加接收机的干扰消除能力，网络中的至少两个发射机的网络可以利用类似的结构化编码方案和协调传输，使得接收机同步地接收同频道信号。

    Robust multiple chain receiver
    68.
    发明申请
    Robust multiple chain receiver 有权

    公开(公告)号：US20060133549A1

    公开(公告)日：2006-06-22

    申请号：US11319356

    申请日：2005-12-27

    Applicant: Shilpa Talwar

    Inventor： Shilpa Talwar

    IPC: H03D1/04 ,  H04L1/02

    CPC classification number: H04B7/0842

    Abstract: The present invention provides a method and system for receiving a plurality of transmission signals at a receiver, the transmission signals each traveling through a corresponding transmission channel. The receiver includes a plurality of receiver channels, a receiver channel corresponding to each transmission channel. Each receiver channel receives a corresponding transmission signal. The received transmission signals are detected to determine whether the received transmission signals are dominated by noise or interference. If the received transmission signals are dominated by noise, then a first set of weights are selected as a receiver weighting. If the received transmission signals are dominated by interference, then a second set of weights are selected as the receiver weighting. The received transmission signals are estimated based upon the receiver weighting. Detecting whether the received transmission signals are dominated by noise or interference includes determining a level of correlation between the received transmission signals. Detecting whether the received transmission signals are dominated by noise or interference can be determined during a time slot of nulled transmission signals. If the transmission signals are multiple carrier signals, then detecting whether the received transmission signals are dominated by noise or interference can be determined during a frequency and time slot of a nulled carrier of the transmission signals. The first set of weights can be based upon a first covariance matrix, wherein the first covariance matrix represents received noise and interference covariance. The second set of weights can be based upon the second covariance matrix, wherein the second covariance matrix represents interference covariance. The first set of weights and the second set of weights can also be used for transmission mode selection and receiver soft decoding.

    Robust multiple chain receiver
    69.
    发明授权
    Robust multiple chain receiver 失效

    公开(公告)号：US07012978B2

    公开(公告)日：2006-03-14

    申请号：US10107237

    申请日：2002-03-26

    Applicant: Shilpa Talwar

    Inventor： Shilpa Talwar

    IPC: H03D1/04 ,  H04L1/02

    CPC classification number: H04B7/0842

    Abstract: The present invention provides a method and system for receiving a plurality of transmission signals at a receiver, the transmission signals each traveling through a corresponding transmission channel. The receiver includes a plurality of receiver channels, a receiver channel corresponding to each transmission channel. Each receiver channel receives a corresponding transmission signal. The received transmission signals are detected to determine whether the received transmission signals are dominated by noise or interference. If the received transmission signals are dominated by noise, then a first set of weights are selected as a receiver weighting. If the received transmission signals are dominated by interference, then a second set of weights are selected as the receiver weighting. The received transmission signals are estimated based upon the receiver weighting. Detecting whether the received transmission signals are dominated by noise or interference includes determining a level of correlation between the received transmission signals. Detecting whether the received transmission signals are dominated by noise or interference can be determined during a time slot of nulled transmission signals. If the transmission signals are multiple carrier signals, then detecting whether the received transmission signals are dominated by noise or interference can be determined during a frequency and time slot of a nulled carrier of the transmission signals. The first set of weights can be based upon a first covariance matrix, wherein the first covariance matrix represents received noise and interference covariance. The second set of weights can be based upon the second covariance matrix, wherein the second covariance matrix represents interference covariance. The first set of weights and the second set of weights can also be used for transmission mode selection and receiver soft decoding.

    Apparatus for incorporating multiple data rates in an orthogonal direct sequence code division multiple access (ODS-CDMA) communications system
    70.
    发明授权
    Apparatus for incorporating multiple data rates in an orthogonal direct sequence code division multiple access (ODS-CDMA) communications system 有权
    用于在正交直接序列码分多址（ODS-CDMA）通信系统中并入多个数据速率的装置

    公开(公告)号：US06563808B1

    公开(公告)日：2003-05-13

    申请号：US09250845

    申请日：1999-02-17

    Applicant: Timothy F. Cox ,  Francis D. Natali ,  John E. Ohlson ,  Shilpa Talwar

    Inventor： Timothy F. Cox ,  Francis D. Natali ,  John E. Ohlson ,  Shilpa Talwar

    IPC: H04B7216

    CPC classification number: H04J13/0048 ,  H04J13/18

    Abstract: An ODS-CDMA communications system is disclosed with at least one hub station and a plurality of user terminals. Each user is assigned a code which is orthogonal to all of the other user codes. The orthogonal code period is chosen such that the code repeats an integer number of times in a data symbol time and the code is synchronized with the symbol transitions so that no data transitions occur within the code. Thus, the selection of an orthogonal code book which enables a high rate data to be spread using shorter code words, and conversely, low data rate to be spread using longer code words, all of which remain mutually orthogonal.

    Abstract translation: 公开了具有至少一个中心站和多个用户终端的ODS-CDMA通信系统。 每个用户被分配与所有其他用户代码正交的代码。 选择正交码周期，使得代码在数据符号时间中重复整数次，并且代码与符号转换同步，使得在代码内不发生数据转换。 因此，选择使用较短码字能够扩展高速率数据的正交码本，反之，使用较长码字扩展的低数据速率，所有这些都保持相互正交。

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