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    Methods and apparatus for allocation of power to base station channels
    6.
    发明授权
    Methods and apparatus for allocation of power to base station channels 有权
    向基站信道分配电力的方法和装置

    公开(公告)号：US06678257B1

    公开(公告)日：2004-01-13

    申请号：US09669950

    申请日：2000-09-25

    申请人： Rajiv Vijayan ,  Peter J. Black ,  Eduardo A. S. Esteves

    发明人： Rajiv Vijayan ,  Peter J. Black ,  Eduardo A. S. Esteves

    IPC分类号： H04B7216

    CPC分类号： H04W52/32 ,  H04W52/325 ,  H04W52/34

    摘要： A method and apparatus that determines how much power to allocate to each of a plurality of reverse link power control (RLPC) Channels to be transmitted from a base station, based upon data rate control (DRC) messages transmitted to the base station. The DRC messages transmitted to the base station are used to determine the quality of the Forward Link over which the RLPC is to be transmitted. Even though the remote station to which the RLPC Channel is to be directed has not transmitted a DRC, the base station is capable of allocating power to the RLPC Channel based upon information provided to the base station in DRCs that were received by the base station. Accordingly, the base station can allocate power among the RLPC Channels without having received explicit information as to the quality of the Forward Link between the base station and every remote station intended to receive the information on the RLPC Channels.

    摘要翻译： 一种方法和装置，其基于发送到基站的数据速率控制（DRC）消息确定要从基站发送的多个反向链路功率控制（RLPC）信道中的每一个的分配多少功率。 发送到基站的DRC消息用于确定要发送RLPC的前向链路的质量。 即使RLPC信道要被引导的远程站没有发送DRC，基站能够基于由基站接收的在DRC中提供给基站的信息向RLPC信道分配功率。 因此，基站可以在RLPC信道之间分配功率，而没有接收到用于接收RLPC信道上的信息的基站和每个远程站之间的前向链路的质量的明确信息。

    Method and system for selecting a best serving sector in a CDMA data communication system
    7.
    发明授权
    Method and system for selecting a best serving sector in a CDMA data communication system 有权
    用于在CDMA数据通信系统中选择最佳服务扇区的方法和系统

    公开(公告)号：US06680925B2

    公开(公告)日：2004-01-20

    申请号：US09982239

    申请日：2001-10-16

    申请人： Qiang Wu ,  Nagabhushana Sindhushayana ,  Peter J. Black ,  Rajiv Vijayan ,  Rashid Attar

    发明人： Qiang Wu ,  Nagabhushana Sindhushayana ,  Peter J. Black ,  Rajiv Vijayan ,  Rashid Attar

    IPC分类号： H04Q700

    CPC分类号： H04W36/06 ,  H04B7/0491 ,  H04W16/24

    摘要： In a disclosed embodiment, signal levels of the active sectors of an access terminal are compared with the signal level of the current serving sector of the access terminal. Next, a delta credit is accumulated. If a DRC lock bit is available, then an accumulated total credit is authorized to produce an authorized accumulated total credit. Afterwards, a new serving sector is identified from a pool of candidate sectors based on the signal levels of the active sectors and the authorized accumulated total credits.

    摘要翻译： 在公开的实施例中，将接入终端的活动扇区的信号电平与接入终端的当前服务扇区的信号电平进行比较。 接下来，积累了三角洲信贷。 如果DRC锁定位可用，则累积的总信用额被授权生成授权的累积总额。 之后，基于活动扇区的信号电平和授权的累计总信用，从候选扇区池中识别新的服务扇区。

    Method and system for selecting a best serving sector in a CDMA data communication system
    8.
    发明授权
    Method and system for selecting a best serving sector in a CDMA data communication system 有权
    用于在CDMA数据通信系统中选择最佳服务扇区的方法和系统

    公开(公告)号：US07796563B2

    公开(公告)日：2010-09-14

    申请号：US10712630

    申请日：2003-11-12

    申请人： Qiang Wu ,  Nagabhushana Sindhushayana ,  Peter J. Black ,  Rajiv Vijayan ,  Rashid Attar

    发明人： Qiang Wu ,  Nagabhushana Sindhushayana ,  Peter J. Black ,  Rajiv Vijayan ,  Rashid Attar

    IPC分类号： H04B7/216

    CPC分类号： H04W36/06 ,  H04B7/0491 ,  H04W16/24

    摘要： An apparatus for selecting a best serving sector in a code division multiple access (CDMA) communication system. A comparator compares a plurality of signal levels received from a plurality of active sectors with a signal level of a current serving sector to produce a difference. A delta generator is coupled to the comparator that generates a delta credit for each of the plurality of active sectors based on the difference. An accumulator is coupled to the delta generator and accumulates a plurality of delta credits to produce an accumulated total credit. A best sector identifier that is coupled to the accumulator identifies the best serving sector from the accumulated total credit.

    摘要翻译： 一种用于在码分多址（CDMA）通信系统中选择最佳服务扇区的装置。 比较器将从多个有效扇区接收的多个信号电平与当前服务扇区的信号电平进行比较以产生差。 增量发生器耦合到比较器，该比较器基于差异为多个活动扇区中的每一个产生增量信用。 累加器耦合到增量发生器并累积多个增量信用以产生累积的总信用。 耦合到累加器的最佳扇区标识符从累积的总信用中识别最佳服务扇区。

    Efficient employment of digital upsampling using IFFT in OFDM systems for simpler analog filtering
    9.
    发明授权
    Efficient employment of digital upsampling using IFFT in OFDM systems for simpler analog filtering 有权
    在OFDM系统中有效利用使用IFFT的数字上采样进行更简单的模拟滤波

    公开(公告)号：US09042461B2

    公开(公告)日：2015-05-26

    申请号：US11373001

    申请日：2006-03-09

    申请人： Raghuraman Krishnamoorthi ,  Fuyun Ling ,  Rajiv Vijayan

    发明人： Raghuraman Krishnamoorthi ,  Fuyun Ling ,  Rajiv Vijayan

    IPC分类号： H04N7/18 ,  H04L27/26

    CPC分类号： H04L27/2644

    摘要： Systems and methods are provided for transmitting OFDM information via IFFT up-sampling components that transmit data at a higher sampling rate than conventional systems to simplify filter requirements and mitigate leakage between symbols. In one embodiment, an NL point IFFT is performed on a zero inserted set of frequency domain symbols. In another embodiment, the NL point IFFT is further optimized by exploiting the fact that (N−1) L of the frequency domain symbols are zero. This enables an embodiment that consists of a pre-processor that multiplies the input samples by complex phase factors, followed by L point IFFTs.

    摘要翻译： 提供了系统和方法，用于通过IFFT上采样组件传输OFDM信息，该组件以比常规系统更高的采样速率传输数据，以简化滤波器要求并减轻符号之间的泄漏。 在一个实施例中，对零插入的频域符号组执行NL点IFFT。 在另一个实施例中，通过利用频域符号的（N-1）L为零的事实进一步优化NL点IFFT。 这使得能够由预处理器组成的实施例，该预处理器将输入样本乘以复相位因子，随后是L点IFFT。