Method and apparatus for increasing the sensitivity of a global positioning satellite receiver
    111.
    发明授权
    Method and apparatus for increasing the sensitivity of a global positioning satellite receiver 有权
    提高全球定位卫星接收机灵敏度的方法和装置

    公开(公告)号:US06327473B1

    公开(公告)日:2001-12-04

    申请号:US09149428

    申请日:1998-09-08

    CPC classification number: G01S19/24 G01S19/246

    Abstract: Method and apparatus providing enhanced sensitivity for GPS receivers by allowing coherent integration of a correlation over several code periods of a GPS signal in one embodiment, and by performing a time to frequency domain conversion to the output from a correlation processor in a second embodiment. In the case in which coherent integration is performed over several code periods, advantage is taken of the fact that CDMA cellular telephone base stations transmit information that allows the receiver to determine GPS time before beginning a GPS signal acquisition process. The integration can be expanded to include code periods from more than one bit period, if the GPS receiver takes advantage of the fact that known bit patterns are transmitted at particular times within the transmission from a GPS satellite. If no base station is within range, then the output from a correlator that integrates a correlation over one code period is used to generate values that are input to in a discrete time domain to frequency domain transform. The output from the transform will indicate the presence of a signal from a particular satellite and the offset between locally generated signal and the received GPS signal.

    Abstract translation: 在一个实施例中,通过允许在GPS信号的几个码周期上的相关性的相干积分,并且通过在第二实施例中对相关处理器的输出执行时间到频域的转换,来为GPS接收机提供增强的灵敏度的方法和装置。 在多个代码周期执行相干积分的情况下,优点在于CDMA蜂窝电话基站发送允许接收机在开始GPS信号获取过程之前确定GPS时间的信息。 如果GPS接收机利用在GPS卫星的传输中的特定时间发送已知位模式的事实,则整合可以扩展到包括来自多于一个位周期的码周期。 如果没有基站在范围内,则使用在一个码周期上对相关性进行积分的相关器的输出来产生输入到离散时域到频域变换的值。 来自变换的输出将指示来自特定卫星的信号的存在以及本地产生的信号与接收到的GPS信号之间的偏移。

    Method and apparatus for determining an algebraic solution to GPS terrestrial hybrid location system equations
    112.
    发明授权
    Method and apparatus for determining an algebraic solution to GPS terrestrial hybrid location system equations 有权
    用于确定GPS地面混合定位系统方程的代数解的方法和装置

    公开(公告)号:US06289280B1

    公开(公告)日:2001-09-11

    申请号:US09460180

    申请日:1999-12-10

    CPC classification number: G01S19/46 G01S19/22

    Abstract: A method and apparatus for use in a hybrid position location system. The method and apparatus combines measurements from Global Positioning System (GPS) and terrestrial transceiver stations to compute the location of a device. An algebraic solution to hybrid position location system equations is output from the method and apparatus. The method and apparatus determines the position of a device using a non-iterative method, as against the use of a conventional iterative least mean square method. The method of the present invention can be used to solve the location system equations in scenarios where a non-iterative solution is desirable. In certain scenarios, the location system equations may have two possible solutions. An iterative method would converge on one of the solutions, without any indication of the existence of the other ambiguous solution. Moreover, the iterative method may converge on the incorrect of the two ambiguous solutions. Use of the presently disclosed method and apparatus yields both the ambiguous solutions. The disclosed method may be followed up with iterative methods, using the solutions from the algebraic method as initial estimates of the device location for the iterative method. A different process can then select the correct solution. Thus, the algebraic method can be used to detect the existence of ambiguous solutions, and to find both solutions.

    Abstract translation: 一种用于混合位置定位系统的方法和装置。 该方法和装置将来自全球定位系统(GPS)和地面收发台的测量结合在一起,以计算设备的位置。 从方法和装置输出混合位置定位系统方程的代数解。 方法和装置使用非迭代方法来确定装置的位置,与使用传统的迭代最小均方法相比。 本发明的方法可用于在需要非迭代解的情况下解决位置系统方程。 在某些情况下,定位系统方程可能有两种可能的解决方案。 迭代方法会收敛于其中一个解,而没有任何指示存在其他不明确的解决方案。 此外,迭代方法可能会收敛于两个模糊解的不正确。 使用本公开的方法和装置产生两个不明确的解决方案。 所公开的方法可以跟随迭代方法,使用来自代数方法的解决方案作为用于迭代方法的设备位置的初始估计。 然后,不同的过程可以选择正确的解决方案。 因此,代数方法可以用于检测模糊解的存在,并找到两种解决方案。

    System and method for determining received pilot power and path loss in
a CDMA communication system
    113.
    发明授权
    System and method for determining received pilot power and path loss in a CDMA communication system 失效
    用于确定CDMA通信系统中的接收导频功率和路径损耗的系统和方法

    公开(公告)号:US5799005A

    公开(公告)日:1998-08-25

    申请号:US641303

    申请日:1996-04-30

    Inventor: Samir S. Soliman

    Abstract: A system and method for estimating the quality and path loss associated with a communications channel on the basis of the power of a pilot signal received by a communications receiver. The communications receiver measures a received signal power, and also makes a relative pilot strength measurement of a received pilot signal. The power of the pilot signal is then computed using the received signal power and the relative pilot strength measurement. An indication of channel quality based on the pilot signal power may be provided to a user of the communications receiver. Path loss of a communication channel between a base station and a remote site station is also estimated. The base station also transmits an indication of the power at which the pilot signal was transmitted. An estimate of the path loss is then made by determining the difference between the indicated power of the transmitted pilot signal and the received pilot signal power.

    Abstract translation: 一种用于基于由通信接收机接收的导频信号的功率估计与通信信道相关联的质量和路径损耗的系统和方法。 通信接收器测量接收信号功率,并且还对接收到的导频信号进行相对导频强度测量。 然后使用接收信号功率和相对导频强度测量来计算导频信号的功率。 可以向通信接收机的用户提供基于导频信号功率的信道质量的指示。 还估计基站和远程站点之间的通信信道的路径损耗。 基站还发送发送导频信号的功率的指示。 然后通过确定所发送的导频信号的指示功率与接收的导频信号功率之间的差异来进行路径损耗的估计。

    Proxy server for facilitating power conservation in wireless client terminals
    114.
    发明授权
    Proxy server for facilitating power conservation in wireless client terminals 有权
    代理服务器,便于无线客户终端的节电

    公开(公告)号:US09402277B2

    公开(公告)日:2016-07-26

    申请号:US12041644

    申请日:2008-03-03

    Inventor: Samir S. Soliman

    Abstract: A novel power conservation scheme is provided for conserving power in client terminals by using a proxy server. The client terminal, having a low-power communication interface and a high-power communication interface, may power down its high-power communication interface, to conserve power. Prior to shutting off its high-power communication interface, the client terminal may assign a host terminal to act as a proxy for the client terminal. The host terminal monitors the paging channels for the client terminal via a high-power communication interface. If the host terminal detects a paging message for the client terminal, it forwards at least a portion of the paging message to the client terminal via a low-power communication interface. Upon receipt of the paging message from the host terminal via its low-power communication interface, the client terminal may power up its high-power communication interface and directly respond to an access terminal that initiated the paging message.

    Abstract translation: 提供了一种新颖的节能方案,用于通过使用代理服务器来节省客户端的功率。 具有低功率通信接口和高功率通信接口的客户终端可以将其高功率通信接口断电以节省功率。 在关闭其高功率通信接口之前,客户终端可以分配主机终端来充当客户终端的代理。 主机终端通过大功率通信接口监视客户终端的寻呼信道。 如果主机终端检测到客户终端的寻呼消息,则它通过低功率通信接口将至少一部分寻呼消息转发给客户终端。 在通过其低功率通信接口从主机终端接收到寻呼消息时,客户终端可以加电其高功率通信接口并直接响应发起寻呼消息的接入终端。

    Performance improvements in a wireless client terminal using assistance from a proxy device
    116.
    发明授权
    Performance improvements in a wireless client terminal using assistance from a proxy device 有权
    使用代理设备的协助在无线客户终端中进行性能改进

    公开(公告)号:US08966292B2

    公开(公告)日:2015-02-24

    申请号:US12983557

    申请日:2011-01-03

    Abstract: Various features are provided to improve communication performance and power conservation in a client terminal by relying on the assistance of a proxy device. For instance, rather than reporting channel measurements via a primary communication channel to a network, the client terminal may be adapted to perform (a) channel measurement feedback using out-of-band signaling via the proxy device and/or (b) active synchronization with assistance of a proxy device. In this manner, the client terminal may be able to disable or reduce power consumption over a primary communication interface for the primary communication channel while utilizing a secondary communication interface to communicate with the proxy device.

    Abstract translation: 提供各种特征以通过依赖于代理设备的帮助来改善客户终端中的通信性能和功率节省。 例如,客户终端不是通过主要通信信道向网络报告信道测量,而是适于使用经由代理设备的带外信令来执行(a)信道测量反馈和/或(b)主动同步 在代理设备的帮助下。 以这种方式,客户终端可以能够通过主通信信道的主通信接口来禁用或减少功率消耗,同时利用辅助通信接口与代理设备进行通信。

    Data resume indicator for mobile device power conservation
    117.
    发明授权
    Data resume indicator for mobile device power conservation 有权
    数据恢复指标,用于移动设备节电

    公开(公告)号:US08964611B2

    公开(公告)日:2015-02-24

    申请号:US12946134

    申请日:2010-11-15

    Abstract: A novel power conservation scheme is provided for conserving power in a wireless client terminal with an established communication session. While in a connected mode, the client terminal may receive data for the communication session via a data channel from an access point. During periods of inactivity over the data channel, the client terminal may switch to a lowered power mode, where the client terminal discontinuously monitors a control channel and does not monitor the data channel. The access point is informed of the operating mode of the client terminal. If a data resume indicator is received over the control channel, the client terminal switches back to the connected mode and resumes the communication session by receiving additional data over the data channel.

    Abstract translation: 提供了一种新颖的功率节省方案,用于在具有建立的通信会话的无线客户终端中节省功率。 在连接模式下,客户终端可以经由接入点的数据信道接收通信会话的数据。 在数据通道不活动期间,客户终端可以切换到降低的功率模式,其中客户终端不连续地监视控制信道,并且不监视数据信道。 接入点被通知客户终端的操作模式。 如果通过控制信道接收到数据恢复指示符,则客户终端切换回连接模式,并通过数据通道接收附加数据来恢复通信会话。

    Method for concurrent bandwidth aggregation using a second path on a second wireless network that utilizes the packet core network of a first path on a first wireless network
    118.
    发明授权
    Method for concurrent bandwidth aggregation using a second path on a second wireless network that utilizes the packet core network of a first path on a first wireless network 有权
    在第二无线网络上使用第二路径进行并行带宽聚合的方法,所述第二路径利用第一无线网络上的第一路径的分组核心网络

    公开(公告)号:US08767625B2

    公开(公告)日:2014-07-01

    申请号:US13241155

    申请日:2011-09-22

    CPC classification number: H04W76/026 H04W76/16 H04W88/06

    Abstract: A method for concurrent bandwidth aggregation (COBA) for a client via multiple wireless networks includes requesting a packet data session for a first path on a first wireless network using a first modem of the multi-modem UE via a packet core network of the first wireless network. The method further includes requesting a packet data session for a second path on a second wireless network via the packet core network of the first wireless network using a second modem of the multi-modem UE. The method also includes receiving packet data over at least the second path on the second wireless network via the packet core network of the first wireless network.

    Abstract translation: 一种用于经由多个无线网络的客户机的并发带宽聚合(COBA)的方法包括:通过第一无线网络的分组核心网络,使用多调制解调器UE的第一调制解调器为第一无线网络上的第一路径请求分组数据会话 网络。 该方法还包括使用多调制解调器UE的第二调制解调器,经由第一无线网络的分组核心网络在第二无线网络上请求用于第二路径的分组数据会话。 该方法还包括经由第一无线网络的分组核心网络在至少第二无线网络上的第二路径上接收分组数据。

    Enhancements for increased spatial reuse in ad-hoc networks
    120.
    发明授权
    Enhancements for increased spatial reuse in ad-hoc networks 有权
    增强ad-hoc网络中的空间重用性

    公开(公告)号:US08730928B2

    公开(公告)日:2014-05-20

    申请号:US12710881

    申请日:2010-02-23

    Abstract: A method of facilitating communication in a wireless ad-hoc network comprises: generating, at a node in the wireless ad-hoc network, target availability information with regard to one or more transmission slots, the target availability information indicating whether the node is permitted to receive a transmission during each transmission slot; generating, at the node, owner availability information with regard to one or more transmission slots, the owner availability information indicating whether the node is permitted to transmit during each transmission slot; and broadcasting, from the node, the target availability information and the owner availability information to separately indicate availability as either an owner or a target for one or more transmission slots.

    Abstract translation: 一种促进无线自组织网络中的通信的方法包括:在所述无线自组织网络中的节点处,生成关于一个或多个传输时隙的目标可用性信息,所述目标可用性信息指示所述节点是否被允许 在每个传输时隙期间接收传输; 在所述节点处生成关于一个或多个传输时隙的所有者可用性信息,所述可用性信息指示所述节点是否被允许在每个传输时隙期间传输; 并且从节点广播目标可用性信息和所有者可用性信息以分别指示作为一个或多个传输时隙的所有者或目标的可用性。

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