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    APPARATUS AND METHODS FOR ADAPTIVELY RESUMING RADIO CHANNEL ESTIMATION
    31.
    发明申请
    APPARATUS AND METHODS FOR ADAPTIVELY RESUMING RADIO CHANNEL ESTIMATION 有权
    用于适应性无线电信道估计的装置和方法

    公开(公告)号：US20130322586A1

    公开(公告)日：2013-12-05

    申请号：US13887207

    申请日：2013-05-03

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Navid Damji ,  Kee-Bong Song ,  Syed Aon Mujtaba ,  Johnson Sebeni ,  Zhu Ji

    IPC: H04L25/02

    CPC classification number: H04L25/0206 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/0256

    Abstract: Methods and apparatus for resuming radio channel measurements and estimations after an interruption in reception. In one exemplary embodiment of the present disclosure, an adaptive solution is provided for channel estimation based at least in part on the reception interruption duration. In one variant, an LTE UE determines a windowing length and/or “shape” for a time domain channel estimation algorithm based on at least the interruption duration. In an alternate variant, an LTE UE determines the interpolation coefficients for a filter based on the interruption duration.

    Abstract translation: 在接收中断后恢复无线电信道测量和估计的方法和装置。 在本公开的一个示例性实施例中，至少部分地基于接收中断持续时间来提供用于信道估计的自适应解决方案。 在一个变型中，LTE UE至少基于中断持续时间来确定时域信道估计算法的加窗长度和/或“形状”。 在替代变型中，LTE UE基于中断持续时间确定滤波器的内插系数。

    METHODS AND APPARATUS FOR INTELLIGENT RECEIVER OPERATION
    32.
    发明申请
    METHODS AND APPARATUS FOR INTELLIGENT RECEIVER OPERATION 有权
    用于智能接收器操作的方法和装置

    公开(公告)号：US20130225094A1

    公开(公告)日：2013-08-29

    申请号：US13766055

    申请日：2013-02-13

    Applicant: Apple Inc.

    Inventor： Syed Aon Mujtaba ,  Youngjae Kim ,  Kee-Bong Song ,  Xiaowen Wang ,  Yuchul Kim

    IPC: H04W52/02

    CPC classification number: H04W52/0209 ,  H04B7/0871 ,  H04B7/0877 ,  H04W52/0238 ,  H04W52/0245 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25 ,  Y02D70/444

    Abstract: Methods and apparatus for adaptively adjusting receiver operation for e.g., power optimization. In one embodiment, operation during diversity operation is adaptively adjusted. Diversity techniques consume significantly more power than non-diversity operation. However, the performance gain from receiver diversity is not always predictable. Consequently, in one embodiment, a device evaluates the overall performance gain contributed by diversity operation and, where the performance gain is insignificant or inadequate, the device disables diversity operation. In one implementation, the device can operate in a static single antenna mode, a dynamic single antenna mode and a dynamic multiple antenna mode.

    Abstract translation: 用于自适应地调整接收机操作的方法和装置，例如功率优化。 在一个实施例中，自适应地调整分集操作期间的操作。 分集技术比非分集操作消耗更多的功率。 然而，接收机多样性的性能增益并不总是可预测的。 因此，在一个实施例中，设备评估由分集操作贡献的总体性能增益，并且在性能增益不显着或不足的情况下，该设备禁用分集操作。 在一个实现中，该设备可以在静态单天线模式，动态单天线模式和动态多天线模式中操作。

    Antenna switching with a single receive chain
    33.
    发明授权
    Antenna switching with a single receive chain 有权
    具有单个接收链的天线切换

    公开(公告)号：US08489034B1

    公开(公告)日：2013-07-16

    申请号：US13711442

    申请日：2012-12-11

    Applicant: Apple Inc.

    Inventor： Yuchul Kim ,  Kee-Bong Song ,  Syed Aon Mujtaba

    IPC: H04B1/40

    CPC classification number: H04B7/0805 ,  H04L1/1614

    Abstract: In order to improve the communication performance and communication reliability of an electronic device, a communication quality metric is determined based on information communicated via a wireless network using a single antenna. For example, the communication quality metric may be determined based on acknowledgment (ACK) and negative-acknowledgment (NACK) messages in the communicated information or a number of packets retransmitted and a number of new packets transmitted in the communicated information. Then, one of at least two antennas is selected based on the determined communication quality metric. In this way, the electronic device may effectively use a single receive chain to provide improved communication of the information.

    Abstract translation: 为了提高电子设备的通信性能和通信可靠性，基于通过使用单个天线的无线网络传送的信息来确定通信质量度量。 例如，可以基于所传送的信息中的确认（ACK）和否定确认（NACK）消息或重发的分组的数量以及在传送的信息中发送的新的分组的数量来确定通信质量度量。 然后，基于所确定的通信质量度量来选择至少两个天线中的一个。 以这种方式，电子设备可以有效地使用单个接收链来提供改进的信息通信。

    Power management based on adaptive receiver selection
    37.
    发明授权
    Power management based on adaptive receiver selection 有权
    基于自适应接收机选择的电源管理

    公开(公告)号：US09560598B2

    公开(公告)日：2017-01-31

    申请号：US14018179

    申请日：2013-09-04

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  Kee-Bong Song ,  Youngjae Kim

    IPC: H04W52/02 ,  H04W52/24

    CPC classification number: H04W52/028 ,  H04W52/0245 ,  H04W52/241 ,  H04W52/243 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

    Abstract: In order to reduce power consumption of an electronic device during wireless communication, the electronic device may transition between a baseline (simple) receiver and a higher-power advanced receiver based on network conditions and/or environmental conditions. For example, the transition to the advanced receiver may occur when it offers improved communication performance over the baseline receiver, such as when there is significant interference and a high data rate, or when there is significant interference and a signal-to-noise ratio (SNR) is low. Similarly, the transition to the baseline receiver may occur when the capabilities of the advanced receiver are not needed, such as when there is less interference, or when the data rate is lower and the SNR is high. In this way, the electronic device can avoid the added power consumption associated with the advanced receiver except where the communication performance offered by the advanced receiver is needed.

    Abstract translation: 为了在无线通信期间降低电子设备的功耗，电子设备可以基于网络条件和/或环境条件在基线（简单）接收机和较高功率的高级接收机之间转换。 例如，当高级接收机提供比基线接收机更好的通信性能时，例如当存在显着干扰和高数据速率时，或者当存在显着的干扰和信噪比（例如， SNR）低。 类似地，当不需要高级接收机的能力时，例如当干扰较小或数据速率较低且SNR高时，可能会发生向基线接收机的转换。 以这种方式，除了需要高级接收机提供的通信性能之外，电子设备可以避免与高级接收机相关联的附加功率消耗。

    Antenna switching system with adaptive switching criteria
    39.
    发明授权
    Antenna switching system with adaptive switching criteria 有权
    具有自适应切换标准的天线切换系统

    公开(公告)号：US09509343B2

    公开(公告)日：2016-11-29

    申请号：US14962084

    申请日：2015-12-08

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  Kee-Bong Song

    IPC: H04B1/00 ,  H04W64/00 ,  H04B1/10 ,  H04B7/08 ,  G01S19/13 ,  H04W88/06

    CPC classification number: H04B1/0064 ,  G01S19/13 ,  H04B1/1027 ,  H04B7/0808 ,  H04B7/082 ,  H04B7/0834 ,  H04W64/006 ,  H04W88/06

    Abstract: Apparatuses may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. Signal strength measurements may be gathered using the antennas and corresponding signal strength difference measurements may be produced to reflect which of the antennas is exhibiting superior performing. Information may be gathered relating to the fading environment of the communications circuitry, such as whether the wireless communications circuitry is transitioning between a fast fading environment and a slow fading environment. For example, the wireless communications circuitry may further include a satellite positioning system receiver or an accelerometer, which may be used in gathering the information. The difference measurements may be filtered and compared to antenna switching criteria such as antenna switching thresholds. An antenna switching threshold may be adjusted in real time based at least in part on the gathered information.

    Abstract translation: 可以提供包含无线通信电路的装置。 无线通信电路可以包括耦合到多个天线的射频收发器电路。 可以使用天线收集信号强度测量值，并且可以产生对应的信号强度差异测量结果，以反映哪些天线表现出优异的性能。 可以收集关于通信电路的衰落环境的信息，诸如无线通信电路是否在快速衰落环境和慢衰落环境之间转变。 例如，无线通信电路还可以包括可用于收集信息的卫星定位系统接收机或加速度计。 差分测量可以被滤波并且与诸如天线切换阈值的天线切换标准进行比较。 可以至少部分地基于所收集的信息实时地调整天线切换阈值。

    Apparatus and methods for synchronization recovery in a hybrid network
    40.
    发明授权
    Apparatus and methods for synchronization recovery in a hybrid network 有权
    混合网络中同步恢复的装置和方法

    公开(公告)号：US09319952B2

    公开(公告)日：2016-04-19

    申请号：US13631640

    申请日：2012-09-28

    Applicant: Apple Inc.

    Inventor： Wen Zhao ,  Xiaowen Wang ,  Vinay Majjigi ,  Paul Flynn ,  Kee-Bong Song ,  Tarik Tabet ,  Youngjae Kim ,  Syed Aon Mujtaba ,  Christian Mucke

    IPC: H04W36/14 ,  H04W76/04 ,  H04W56/00 ,  H04W76/02

    CPC classification number: H04W36/14 ,  H04W56/0045 ,  H04W76/16 ,  H04W76/25 ,  H04W76/27

    Abstract: Methods and apparatus for synchronizing operational state during hybrid network operation. In one embodiment, the various access technologies that makeup the hybrid network not fully synchronized. Thus, a wireless device operating in a mixed mode must be capable of managing synchronization across multiple access technologies. The wireless device is configured to estimate an expected “tune-away” period when disengaging with a one access technology to address events (for example, link maintenance, calls, data, and the like) or perform monitoring on a second access technology. The estimate is then used by the device to adjust its operational parameters on the technology from which it is tuning away. This ensures smooth switching away from and back to the various network technologies.

    Abstract translation: 混合网络运行期间同步运行状态的方法和装置。 在一个实施例中，组合混合网络的各种接入技术未完全同步。 因此，以混合模式操作的无线设备必须能够跨多个接入技术来管理同步。 无线设备被配置为在使用一种接入技术来解决事件（例如，链路维护，呼叫，数据等）或在第二接入技术上执行监控时，估计预期的“调离”周期。 然后，设备使用该估计来调整其调谐技术的操作参数。 这确保了平滑地切换远离各种网络技术。

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