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    Adjusting transmit power in a wireless communication system
    2.
    发明授权
    Adjusting transmit power in a wireless communication system 有权
    调整无线通信系统中的发射功率

    公开(公告)号：US07835762B2

    公开(公告)日：2010-11-16

    申请号：US10282990

    申请日：2002-10-28

    申请人： Andrew Sendonaris

    发明人： Andrew Sendonaris

    IPC分类号： H04B7/00

    CPC分类号： H04W52/283 ,  H04W52/223 ,  H04W52/282 ,  H04W52/60

    摘要： A method and apparatus are provided for determining adjustments to be made to a transmitter based on the velocity or location of a wireless communication device in relation to a wireless network infrastructure. The transmitter to be adjusted can be located in either the wireless communication device, or in a device in the wireless communication infrastructure, or both.

    摘要翻译： 提供了一种用于基于无线通信设备相对于无线网络基础设施的速度或位置来确定对发射机进行调整的方法和装置。 要调整的发射机可以位于无线通信设备中，或位于无线通信基础设施中的设备中，或两者。

    WIDE AREA POSITIONING SYSTEMS AND METHODS
    3.
    发明申请
    WIDE AREA POSITIONING SYSTEMS AND METHODS 有权
    广域定位系统和方法

    公开(公告)号：US20130169484A1

    公开(公告)日：2013-07-04

    申请号：US13535128

    申请日：2012-06-27

    申请人： Arun Raghupathy ,  Andrew Sendonaris ,  Norman F. Krasner

    发明人： Arun Raghupathy ,  Andrew Sendonaris ,  Norman F. Krasner

    IPC分类号： G01S5/02

    CPC分类号： G01S5/0226 ,  G01S19/11 ,  G01S19/46 ,  H04W64/00

    摘要： Devices, systems, and methods for sending positional information from transmitters/beacons are disclosed. In one implementation a transmitter generates a range block including a ranging signal and a hybrid block including positioning data, and sends the range block and hybrid block in predefined slots in a transmit frame. A receiver in a user device receives signals from a plurality of transmitters and generates position/location information using trilateration and measured altitude information in comparison with transmitter altitude information.

    摘要翻译： 公开了用于从发射机/信标发送位置信息的装置，系统和方法。 在一个实现中，发射机生成包括测距信号的范围块和包括定位数据的混合块，并且将发射帧中的预定义时隙中的距离块和混合块发送。 用户设备中的接收机从多个发射机接收信号，并且与发射机高度信息相比，使用三边测量和测量的高度信息来生成位置/位置信息。

    WIDE AREA POSITIONING SYSTEM
    4.
    发明申请
    WIDE AREA POSITIONING SYSTEM 有权
    宽域定位系统

    公开(公告)号：US20120182180A1

    公开(公告)日：2012-07-19

    申请号：US13296067

    申请日：2011-11-14

    申请人： Thomas WOLF ,  Arun RAGHUPATHY ,  Andrew SENDONARIS ,  Subramanian MEIYAPPAN ,  Ganesh PATTABIRAMAN ,  Haochen TANG ,  Varaprasad VAJJHALA ,  Rajendra SINGH

    发明人： Thomas WOLF ,  Arun RAGHUPATHY ,  Andrew SENDONARIS ,  Subramanian MEIYAPPAN ,  Ganesh PATTABIRAMAN ,  Haochen TANG ,  Varaprasad VAJJHALA ,  Rajendra SINGH

    IPC分类号： G01S19/46 ,  G06F19/00

    CPC分类号： G01S19/06 ,  G01C5/06 ,  G01S5/021 ,  G01S5/14 ,  G01S5/145 ,  G01S19/10 ,  G01S19/46

    摘要： Positioning systems and methods comprise a network of transmitters that broadcast positioning signals comprising ranging signals and positioning system information. A ranging signal comprises information used to measure a distance to a transmitter broadcasting the ranging signal. A reference sensor array comprising at least one reference sensor unit is positioned at a known location. A remote receiver includes an atmospheric sensor collecting atmospheric data at a position of the remote receiver. A positioning application is coupled to the remote receiver and generates a reference pressure estimate at the position of the remote receiver using the atmospheric and reference data from the reference sensor array. The positioning application computes the position of the remote receiver using the reference pressure estimate and information derived from at least one of the positioning signals and satellite signals that are signals of a satellite-based positioning system. The position includes an elevation.

    摘要翻译： 定位系统和方法包括广播包括测距信号和定位系统信息的定位信号的发射机网络。 测距信号包括用于测量到广播测距信号的发射机的距离的信息。 包括至少一个参考传感器单元的参考传感器阵列位于已知位置。 远程接收器包括在远程接收器的位置处收集大气数据的大气传感器。 定位应用耦合到远程接收器，并使用来自参考传感器阵列的大气和参考数据在远程接收器的位置处产生参考压力估计。 定位应用使用参考压力估计和从作为基于卫星的定位系统的信号的定位信号和卫星信号中的至少一个导出的信息来计算远程接收机的位置。 位置包括一个高程。

    Method and apparatus for performing frequency tracking based on diversity transmitted pilots in a CDMA communication system
    6.
    发明授权
    Method and apparatus for performing frequency tracking based on diversity transmitted pilots in a CDMA communication system 有权
    一种用于在CDMA通信系统中基于分集传输导频执行频率跟踪的方法和装置

    公开(公告)号：US07430191B2

    公开(公告)日：2008-09-30

    申请号：US09950744

    申请日：2001-09-10

    申请人： Parvathanathan Subrahmanya ,  Andrew Sendonaris

    发明人： Parvathanathan Subrahmanya ,  Andrew Sendonaris

    IPC分类号： H04B7/216

    CPC分类号： H04L27/2332 ,  H04B2201/70701 ,  H04L2027/0055 ,  H04L2027/0065 ,  H04L2027/0081 ,  H04L2027/0087

    摘要： Techniques to acquire and track a received signal instance (or multipath) based on one or more transmitted pilots. In an aspect, a frequency tracking loop is provided to acquire and track the multipath, and supports a number of loop modes (e.g., acquisition and tracking modes). Each loop mode may be associated with a respective frequency detector and a set of values for a set of elements in the loop. In another aspect, several frequency detectors are provided for deriving estimates of the frequency error in the downconversion of the multipath (e.g., from radio frequency to baseband). In one design, maximum likelihood estimates of the frequency error are derived based on the recovered pilot symbols. In another design, the frequency error estimates for the multipath are derived based on the frequency error estimated for each transmitted signal.

    摘要翻译： 基于一个或多个发射的导频获取和跟踪接收到的信号实例（或多路径）的技术。 在一方面，提供频率跟踪环以获取和跟踪多路径，并且支持多种环路模式（例如，采集和跟踪模式）。 每个循环模式可以与相应的频率检测器和一组循环中的元件的值相关联。 在另一方面，提供了几个频率检测器用于导出多路径下变频（例如，从射频到基带）中的频率误差的估计。 在一种设计中，基于恢复的导频符号导出频率误差的最大似然估计。 在另一种设计中，基于针对每个发射信号估计的频率误差导出多路径的频率误差估计。

    Wide area positioning systems and methods
    7.
    发明授权
    Wide area positioning systems and methods 有权
    广域定位系统和方法

    公开(公告)号：US09035829B2

    公开(公告)日：2015-05-19

    申请号：US13535128

    申请日：2012-06-27

    申请人： Arun Raghupathy ,  Andrew Sendonaris ,  Norman F. Krasner

    发明人： Arun Raghupathy ,  Andrew Sendonaris ,  Norman F. Krasner

    IPC分类号： G01S1/08 ,  G01S5/02 ,  G01S19/11 ,  G01S19/46

    CPC分类号： G01S5/0226 ,  G01S19/11 ,  G01S19/46 ,  H04W64/00

    摘要： Devices, systems, and methods for sending positional information from transmitters/beacons are disclosed. In one implementation a transmitter generates a range block including a ranging signal and a hybrid block including positioning data, and sends the range block and hybrid block in predefined slots in a transmit frame. A receiver in a user device receives signals from a plurality of transmitters and generates position/location information using trilateration and measured altitude information in comparison with transmitter altitude information.

    摘要翻译： 公开了用于从发射机/信标发送位置信息的装置，系统和方法。 在一个实现中，发射机生成包括测距信号的范围块和包括定位数据的混合块，并且将发射帧中的预定义时隙中的距离块和混合块发送。 用户设备中的接收机从多个发射机接收信号，并且与发射机高度信息相比，使用三边测量和测量的高度信息来生成位置/位置信息。

    Data partition method to maximize bluetooth baseband throughput
    9.
    发明授权
    Data partition method to maximize bluetooth baseband throughput 有权
    数据分区方法，最大化蓝牙基带吞吐量

    公开(公告)号：US07457319B2

    公开(公告)日：2008-11-25

    申请号：US10295306

    申请日：2002-11-15

    申请人： Thejaswi Bharadwaj Madapushi ,  Andrew Sendonaris

    发明人： Thejaswi Bharadwaj Madapushi ,  Andrew Sendonaris

    IPC分类号： H04Q7/24 ,  H04J3/00 ,  H04B1/44 ,  H04B7/005

    CPC分类号： H04L47/10 ,  H04L47/14 ,  H04L47/36

    摘要： A method is provided for partitioning data into packets, where each packet has a type k selected from a set of packet types, and a length Lk, in bytes, of payload data. The method includes steps of: determining an expected successful transmit time Ek, for packets of type k, for each of the set of packet types; choosing an optimum packet type for which the value Ek/Lk is a minimum; and partitioning the payload data into packets of the optimum packet type. The method is enhanced by computing a bit error rate (BER) from the retransmission rate for single packet type and using the BER to compute retransmission rates for packets of the remaining types. The method is further enhanced by computing transition tables in advance and using the transition tables to select an optimum packet type.

    摘要翻译： 提供了一种用于将数据分割成分组的方法，其中每个分组具有从一组分组类型中选择的类型k，以及以有效载荷数据为单位的字节长度L k。 该方法包括以下步骤：针对类型k的分组，为每个分组类型中的每一个确定预期的成功传输时间E k k; 选择值为最小的最佳分组类型是最小的; 并将有效载荷数据划分成最佳分组类型的分组。 该方法通过针对单个分组类型的重传速率计算误比特率（BER）并使用BER来计算其余类型的分组的重传率来增强。 通过预先计算转换表并使用转换表来选择最佳分组类型来进一步增强该方法。

    Compensating for frequency shift and timing shift in frequency and time tracking loops based on mobile unit velocity
    10.
    发明授权
    Compensating for frequency shift and timing shift in frequency and time tracking loops based on mobile unit velocity 失效
    基于移动单元速度补偿频率和时间跟踪循环中的频移和定时偏移

    公开(公告)号：US07027815B2

    公开(公告)日：2006-04-11

    申请号：US10632421

    申请日：2003-08-01

    申请人： Andrew Sendonaris

    发明人： Andrew Sendonaris

    IPC分类号： H04Q7/20

    CPC分类号： H04W56/0035 ,  H04W56/0055 ,  H04W92/10

    摘要： A method and apparatus are provided for adjusting a communication receiver based on the velocity of a wireless communication device in relation to a base station. The receiver is adjusted by estimating a frequency shift of a communication signal transmitted between the base station and the wireless communication device (WCD) based on the WCD velocity. Using this estimate, adjustments are made to the communication receiver to account for the frequency shift of the communication signal. Adjustments to the receiver can include adjusting frequency and time tracking loops to account for the change in frequency of a signal received by, and from, the WCD as it moves relative to the base station. The receiver may be located in the WCD, or in the network infrastructure, or in both.

    摘要翻译： 提供了一种用于基于无线通信设备相对于基站的速度来调整通信接收机的方法和装置。 通过基于WCD速度估计在基站和无线通信设备（WCD）之间传输的通信信号的频移来调整接收机。 使用该估计，对通信接收机进行调整以考虑通信信号的频移。 对接收机的调整可以包括调整频率和时间跟踪环路以解决当WCD相对于基站移动时由WCD接收的信号的频率的变化。 接收机可以位于WCD中，或者位于网络基础设施中，或两者中。