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    METHOD TO CONTROL THE EFFECTS OF OUT-OF-CELL INTERFERENCE IN A WIRELESS CELLULAR SYSTEM USING OVER-THE-AIR FEEDBACK CONTROL
    17.
    发明申请
    METHOD TO CONTROL THE EFFECTS OF OUT-OF-CELL INTERFERENCE IN A WIRELESS CELLULAR SYSTEM USING OVER-THE-AIR FEEDBACK CONTROL 审中-公开
    使用空中反馈控制在无线蜂窝系统中控制细胞外干扰的方法

    公开(公告)号：WO2007127097A3

    公开(公告)日：2008-01-03

    申请号：PCT/US2007009328

    申请日：2007-04-17

    Applicant: LUCENT TECHNOLOGIES INC ,  NAGARAJ SHIRISH ,  VASUDEVAN SUBRAMANIAN

    Inventor： NAGARAJ SHIRISH ,  VASUDEVAN SUBRAMANIAN

    IPC: H04B7/005 ,  H04W52/28 ,  H04W52/36 ,  H04W52/40 ,  H04W52/48 ,  H04W52/56

    CPC classification number: H04W52/48 ,  H04W36/24 ,  H04W52/28 ,  H04W52/286 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367 ,  H04W52/40 ,  H04W52/56

    Abstract: A mobile terminal is controlled via over-the-air feedback so as to enable its data transmissions to be independently and successfully decoded at each of the base stations in its active set absent a transmit power limitation or data retransmission limit. Using the decoded data, the channel is re-estimated and the waveform received from the mobile terminal is reconstructed and subtracted from the total interference at each base station in the active set where decoding has been successful. As a result, transmissions from other mobile terminals, which have yet to be successfully decoded at such a base station, will experience a higher signal-to-noise ratio and thus an increased likelihood of being successfully decoded.

    Abstract translation: 通过空中反馈来控制移动终端，以便在没有发射功率限制或数据重传限制的情况下，使得其数据传输能够在其活动集合中的每个基站上独立且成功地解码。 使用解码的数据，重新估计信道，并从移动终端接收到的波形被重构，并从解码成功的有效集中的每个基站的总干扰中减去。 因此，在这种基站尚未成功解码的其他移动终端的传输将会经历更高的信噪比，从而增加成功解码的可能性。

    METHODS OF REVERSE LINK POWER CONTROL
    18.
    发明申请
    METHODS OF REVERSE LINK POWER CONTROL 审中-公开
    反向链路功率控制方法

    公开(公告)号：WO2007097959A2

    公开(公告)日：2007-08-30

    申请号：PCT/US2007003895

    申请日：2007-02-13

    Applicant: LUCENT TECHNOLOGIES INC ,  DAS SUMAN ,  NAGARAJ SHIRISH ,  VISWANATHAN HARISH

    Inventor： DAS SUMAN ,  NAGARAJ SHIRISH ,  VISWANATHAN HARISH

    IPC: H04L5/02 ,  H04B7/005

    CPC classification number: H04W52/243 ,  H04L5/0016 ,  H04L5/0048 ,  H04L27/0008 ,  H04W52/146 ,  H04W52/16 ,  H04W52/24 ,  H04W52/247 ,  H04W52/36 ,  H04W52/362 ,  H04W52/367

    Abstract: Methods of reverse link power control are provided. A first example method includes first measuring a first type of interference (S600), second measuring a second type of interference (S605), determining a ratio between the first and second measurements (S610) and broadcasting the determined ratio to a plurality of mobile units (S615). A second example method includes receiving a broadcasted ratio indicating a ratio between two different types of interference (S650) and calculating a power level for reverse link transmissions based on the received broadcasted ratio (S655). A third example method includes first adjusting OFDMA transmission power based on first feedback signals during an OFDMA transmission (S725) and second adjusting OFDMA transmission power based on second feedback signals during periods between OFDMA transmissions (S 745). A fourth example method includes receiving a plurality of interference indicating signals from different base stations (S805) and detepnining whether to adjust a maximum transmit power threshold based on the plurality of interference indicating signals, the maximum transmit power threshold indicating the maximum permitted transmission power level below which transmissions are constrained (S810).

    Abstract translation: 提供反向链路功率控制的方法。 第一示例性方法包括：首先测量第一类型的干扰（S600），第二类测量第二类型的干扰（S605），确定第一和第二测量之间的比率（S610），并将所确定的比率广播到多个移动单元 （S615）。 第二示例性方法包括：基于所接收的广播比率，接收指示两种不同类型的干扰之间的比率的广播比率（S650）并计算反向链路传输的功率电平（S655）。 第三示例性方法包括在OFDMA传输期间基于第一反馈信号来调整OFDMA传输功率（S725），并且在OFDMA传输之间的时段期间，基于第二反馈信号来调整OFDMA传输功率（S 745）。 第四示例性方法包括从不同基站接收多个干扰指示信号（S805），并且基于多个干扰指示信号来检测是否调整最大发射功率阈值，指示最大允许发射功率电平的最大发射功率阈值 低于哪个传输被限制（S810）。

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