Method and system for sharing an oscillator for processing cellular radio signals and GNSS radio data signals by deferring AFC
    21.
    发明授权
    Method and system for sharing an oscillator for processing cellular radio signals and GNSS radio data signals by deferring AFC 有权
    用于通过推迟AFC共享用于处理蜂窝无线电信号和GNSS无线电数据信号的振荡器的方法和系统

    公开(公告)号:US08681043B2

    公开(公告)日:2014-03-25

    申请号:US13367333

    申请日:2012-02-06

    IPC分类号: G01S19/23

    CPC分类号: G01S19/235 G01S19/36

    摘要: A global navigation satellite system (GNSS) enabled mobile device comprising a crystal oscillator and an automatic frequency correction (AFC) circuit may be operable to share the crystal oscillator between processing of cellular radio signals and processing of GNSS data messages. The GNSS enabled mobile device may be operable to enforce an AFC correction when the crystal oscillator drifts beyond a specific frequency error. The AFC correction may be allowed during time intervals corresponding to GNSS words at which decoding of these words is not required. The GNSS enabled mobile device may be operable to disable the AFC correction during time intervals associated with decoding of words while the crystal oscillator may drift within the specific frequency error range. After the decoding of one or more of words is completed, the AFC correction may be allowed during the time intervals corresponding to these words.

    摘要翻译: 包括晶体振荡器和自动频率校正(AFC)电路的全球导航卫星系统(GNSS)移动设备可以用于在蜂窝无线电信号的处理和GNSS数据消息的处理之间共享晶体振荡器。 当使能GNSS功能的移动设备可以可操作以在晶体振荡器漂移超过特定频率误差时执行AFC校正。 可以在对应于不需要对这些单词进行解码的GNSS字的时间间隔期间允许AFC校正。 支持GNSS的移动设备可以可操作以在晶体振荡器可能在特定频率误差范围内漂移的同时,在与字解码相关的时间间隔期间禁用AFC校正。 在一个或多个字的解码完成之后,可以在对应于这些字的时间间隔期间允许AFC校正。

    Method and apparatus for mitigating interference in a satellite signal receiver
    22.
    发明授权
    Method and apparatus for mitigating interference in a satellite signal receiver 有权
    减轻卫星信号接收机干扰的方法和装置

    公开(公告)号:US08571153B2

    公开(公告)日:2013-10-29

    申请号:US12759816

    申请日:2010-04-14

    申请人: Charles Abraham

    发明人: Charles Abraham

    IPC分类号: H04B1/10

    摘要: A method and apparatus for mitigating interference in a satellite signal receiver is described. The satellite signal receiver receives satellite signals from a plurality of satellites. In one example, a control signal is transmitted to the satellite signal receiver upon occurrence of data transmission from a wireless transceiver operating in proximity to the satellite signal receiver. Signal integration within the satellite signal receiver is gated in response to the control signal. In another example, one or more values of satellite signal samples are selected from a plurality of possible values. Signal integration within the satellite signal receiver is gated in response to a percentage of satellite signal samples taken over a predefined period exceeding a predefined threshold. In yet another example, a gain setting of an automatic gain control circuit within the satellite signal receiver is adjusted in response to detection of interference.

    摘要翻译: 描述了用于减轻卫星信号接收机中的干扰的方法和装置。 卫星信号接收机从多个卫星接收卫星信号。 在一个示例中,当从邻近卫星信号接收机操作的无线收发器发生数据传输时,控制信号被发送到卫星信号接收机。 卫星信号接收机中的信号积分响应于控制信号而选通。 在另一示例中,从多个可能值中选择卫星信号样本的一个或多个值。 卫星信号接收机内的信号积分响应于在超过预定阈值的预定义周期内拍摄的卫星信号样本的百分比来选通。 在另一示例中,响应于干扰的检测来调整卫星信号接收机内的自动增益控制电路的增益设置。

    Method and apparatus for locating position of a mobile device in an assisted satellite positioning system
    23.
    发明授权
    Method and apparatus for locating position of a mobile device in an assisted satellite positioning system 有权
    用于在辅助卫星定位系统中定位移动设备的位置的方法和装置

    公开(公告)号:US08543133B2

    公开(公告)日:2013-09-24

    申请号:US13275632

    申请日:2011-10-18

    IPC分类号: H04B1/16

    CPC分类号: H04W64/00

    摘要: Method and apparatus for locating position of a mobile device in an assisted satellite positioning system is described. In one example, satellite measurement data is obtained from a plurality of satellites at a mobile device. Position of the mobile device is computed using the satellite measurement data. The position is sent to a cellular device via a wireless ad hoc network. In one example, the wireless ad hoc network comprises a BLUETOOTH communication link. In one example, the mobile device is configured to receive assistance data from a position server through the wireless ad hoc network. For example, the mobile device may comprise a housing configured to plug into a cigarette lighter connector of an automobile and the cellular device may comprise a cellular telephone without location-determination capabilities (i.e., the cellular telephone does not include an integrated GPS receiver).

    摘要翻译: 描述了用于在辅助卫星定位系统中定位移动设备的位置的方法和装置。 在一个示例中,从移动设备的多个卫星获得卫星测量数据。 使用卫星测量数据计算移动设备的位置。 该位置通过无线自组织网络发送到蜂窝设备。 在一个示例中,无线自组织网络包括BLUETOOTH通信链路。 在一个示例中,移动设备被配置为通过无线自组织网络从位置服务器接收辅助数据。 例如,移动设备可以包括被配置为插入汽车的点烟器连接器的壳体,并且蜂窝设备可以包括没有位置确定能力的蜂窝电话(即,蜂窝电话不包括集成GPS接收器)。

    Method and system for adjusting a measurement cycle in a wireless receiver
    24.
    发明授权
    Method and system for adjusting a measurement cycle in a wireless receiver 有权
    用于调整无线接收机中的测量周期的方法和系统

    公开(公告)号:US08508407B2

    公开(公告)日:2013-08-13

    申请号:US13176013

    申请日:2011-07-05

    申请人: Charles Abraham

    发明人: Charles Abraham

    IPC分类号: G01S19/34

    摘要: Methods and systems for measuring wireless signals are described. The method includes generating a velocity estimate that includes a speed and a direction of a wireless receiver. A change in the velocity estimate is detected and how frequently the wireless signal is measured is adjusted according to the change detected in the velocity estimate. Systems may include wireless receivers that include an accelerometer that is operable to generate a velocity estimate that includes speed and direction of the wireless receiver. The wireless receivers may also include a processor operable to adjust a measurement period of the wireless signal in the wireless receiver according to a rate of change in the velocity estimate.

    摘要翻译: 描述了用于测量无线信号的方法和系统。 该方法包括产生包括无线接收机的速度和方向的速度估计。 检测速度估计的变化,并根据速度估计中检测到的变化来调整无线信号的测量频率。 系统可以包括无线接收器,其包括加速度计,其可操作以产生包括无线接收器的速度和方向的速度估计。 无线接收机还可以包括可操作以根据速度估计的变化率来调整无线接收机中的无线信号的测量周期的处理器。

    METHOD AND SYSTEM FOR NETWORK SYNCHRONIZATION VIA A FEMTOCELL
    25.
    发明申请
    METHOD AND SYSTEM FOR NETWORK SYNCHRONIZATION VIA A FEMTOCELL 有权
    通过FEMTOCELL进行网络同步的方法和系统

    公开(公告)号:US20130012197A1

    公开(公告)日:2013-01-10

    申请号:US13619534

    申请日:2012-09-14

    IPC分类号: H04W56/00

    摘要: Aspects of a method and system for communication are provided. In this regard, a femtocell may receive messages from a plurality of different sources comprising one or more other femtocells, one or more cellular enabled communication devices, and one or more non-cellular network nodes. The femtocell may select, based on the received messages, a master clock within one of the plurality of different sources as a master clock for synchronization of the plurality of different sources. A femtocell clock, a global navigational satellite signal (GNSS) clock, a cellular base station clock, or a cellular enabled communication device clock may be selected as the master clock. The femtocell may transmit and/or receive synchronization messages to and/or from the one or more cellular enabled communication devices and the one or more non-cellular network nodes.

    摘要翻译: 提供了通信方法和系统的方面。 在这方面,毫微微小区可以从包括一个或多个其他毫微微小区,一个或多个支持蜂窝的通信设备以及一个或多个非蜂窝网络节点的多个不同的源接收消息。 毫微微小区可以基于所接收的消息来选择多个不同源之一内的主时钟作为用于多个不同源的同步的主时钟。 可以选择毫微微小时时钟,全球导航卫星信号(GNSS)时钟,蜂窝基站时钟或支持蜂窝的通信设备时钟作为主时钟。 毫微微小区可以向一个或多个支持蜂窝的通信设备和一个或多个非蜂窝网络节点发送和/或接收同步消息。

    Method and system for propagating GNSS assistance data among communication devices in a GNSS group
    26.
    发明授权
    Method and system for propagating GNSS assistance data among communication devices in a GNSS group 有权
    用于在GNSS组中的通信设备之间传播GNSS辅助数据的方法和系统

    公开(公告)号:US08350755B2

    公开(公告)日:2013-01-08

    申请号:US12748212

    申请日:2010-03-26

    IPC分类号: G01S19/05 G01S19/25

    CPC分类号: G01S19/05 G01S19/27

    摘要: A communication device within a GNSS group propagates GNSS assistance data to one or more other communication devices in the GNSS group utilizing direct device-to-device connections. The GNSS assistance data comprises ephemeris received from one or more GNSS satellites and/or predicted ephemeris. As a source device, the communication device generates, and/or acquires from other resources such as a remote location server, the predicted ephemeris. As a destination device, the communication device receives existing GNSS assistance data from a source device and/or other communication devices in the GNSS group. A GNSS position for the communication device and corresponding time information are used to refresh the received GNSS assistance data. In instances where the communication device further acts as a relay device, the refreshed GNSS assistance data is relayed to other communication devices over wired and/or wireless direct device-to-device connections utilizing appropriate communication technologies such as WiFi, Bluetooth and/or Bluetooth low energy.

    摘要翻译: GNSS组内的通信设备使用直接的设备到设备连接将GNSS辅助数据传播到GNSS组中的一个或多个其他通信设备。 GNSS辅助数据包括从一个或多个GNSS卫星和/或预测星历接收的星历。 作为源设备,通信设备生成和/或从诸如远程位置服务器的其他资源获取预测星历。 作为目的地设备,通信设备从GNSS设备和/或其他通信设备接收现有的GNSS辅助数据。 用于通信设备的GNSS位置和对应的时间信息用于刷新接收到的GNSS辅助数据。 在通信设备进一步充当中继设备的情况下,通过使用适当的通信技术(例如WiFi,蓝牙和/或蓝牙),刷新的GNSS辅助数据通过有线和/或无线直接设备到设备连接中继到其他通信设备 低能量。

    Method and System for Timely Delivery of Multimedia Content Via a Femtocell
    27.
    发明申请
    Method and System for Timely Delivery of Multimedia Content Via a Femtocell 有权
    通过毫微微小时及时传送多媒体内容的方法和系统

    公开(公告)号:US20120190349A1

    公开(公告)日:2012-07-26

    申请号:US13438548

    申请日:2012-04-03

    IPC分类号: H04W4/00

    摘要: Aspects of a method and system for timely delivery of multimedia content via a femtocell are provided. In this regard, a femtocell may receive data via an upstream path and transmit data via a downstream path. One of the upstream path and downstream path may comprise a cellular path and the other may comprise a non-cellular path. One or both of the upstream path and the downstream path may be audio video bridging (AVB) paths. Data may be stored in the femtocell based on timing characteristics of one or both of the upstream path and the downstream path. Data may be delivered to the femtocell utilizing best effort delivery and the data may be forwarded by the femtocell with guaranteed quality of service. Resources in the femtocell may be reserved and/or synchronized, utilizing AVB protocols, for communication of one or more data streams.

    摘要翻译: 提供了通过毫微微小区及时传送多媒体内容的方法和系统的方面。 在这方面,毫微微小区可以经由上游路径接收数据,并经由下行路径发送数据。 上游路径和下游路径之一可以包括蜂窝路径,另一个可以包括非蜂窝路径。 上游路径和下游路径中的一个或两个可以是音频视频桥接(AVB)路径。 可以基于上游路径和下游路径中的一个或两个的定时特性将数据存储在毫微微小区中。 数据可以使用尽力传递来传送到毫微微小区,并且数据可以由具有保证的服务质量的毫微微小区转发。 可以使用AVB协议来保留和/或同步毫微微小区中的资源,以用于一个或多个数据流的通信。

    Method and System for a Virtual Wide Area GNSS Reference Network
    28.
    发明申请
    Method and System for a Virtual Wide Area GNSS Reference Network 有权
    用于虚拟广域GNSS参考网络的方法和系统

    公开(公告)号:US20120075140A1

    公开(公告)日:2012-03-29

    申请号:US13313149

    申请日:2011-12-07

    IPC分类号: G01S19/05

    CPC分类号: G01S19/05

    摘要: A GNSS enabled mobile device receives GNSS assistance data in a determined format from a central processing station communicatively coupled to a wide area reference network (WARN). The WARN comprises a first plurality of GNSS tracking stations from which usable signals are received by the central processing station, and a second plurality of GNSS tracking stations from which unusable or no signals are received by the central processing station. The central processing station generates the GNSS assistance data using a complete set of GNSS reference feeds of the WARN. The complete set of GNSS reference feeds comprises actual GNSS reference feeds from the first plurality of GNSS tracking stations and virtual GNSS reference feeds derived for the second plurality of GNSS tracking stations from processed actual GNSS reference feeds. The generated GNSS assistance data is reformatted into a determined format and is communicated to the GNSS enabled mobile device, accordingly.

    摘要翻译: 支持GNSS的移动设备从通信地耦合到广域参考网络(WARN)的中央处理站接收确定格式的GNSS辅助数据。 该WARN包括第一多个GNSS跟踪站,中央处理站从其中接收可用信号;以及第二多个GNSS跟踪站,中央处理站从该GNSS跟踪站不可用或没有信号被接收。 中央处理站使用WARN的一套完整的GNSS参考资料来生成GNSS辅助数据。 完整的GNSS参考馈送集合包括来自第一多个GNSS跟踪站的实际GNSS参考馈送以及从处理的实际GNSS参考馈送为第二多个GNSS跟踪站导出的虚拟GNSS参考馈送。 生成的GNSS辅助数据被重新格式化为确定的格式,并相应地传送给支持GNSS的移动设备。

    Method and apparatus for providing an energy-based signal tracking loop
    29.
    发明授权
    Method and apparatus for providing an energy-based signal tracking loop 有权
    用于提供基于能量的信号跟踪环路的方法和装置

    公开(公告)号:US08098716B2

    公开(公告)日:2012-01-17

    申请号:US12014410

    申请日:2008-01-15

    IPC分类号: H04B1/707

    CPC分类号: H04B1/7085 H04B1/70752

    摘要: A method and apparatus for tracking a signal comprises correlating a digital signal with a code using a hypothesis at a plurality of frequencies and at least one delay to produce correlation results, measuring an energy value of the correlation results, adjusting at least one of the frequency or delay in response to the measured energy value to form the hypothesis.

    摘要翻译: 用于跟踪信号的方法和装置包括使用多个频率的假设和至少一个延迟来将数字信号与代码相关以产生相关结果,测量相关结果的能量值,调整频率的至少一个 或响应于测量的能量值的延迟以形成假设。