知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

42 records (took 0.022 seconds)

    Adaptive receive diversity during discontinuous reception in mobile wireless device
    1.
    发明授权
    Adaptive receive diversity during discontinuous reception in mobile wireless device 有权
    移动无线设备不连续接收期间的自适应接收分集

    公开(公告)号：US09312943B2

    公开(公告)日：2016-04-12

    申请号：US14249263

    申请日：2014-04-09

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  Xiaowen Wang ,  Young Jae Kim ,  Vinay R. Majjigi ,  Johnson O. Sebeni ,  Tahir Shamim ,  Karthik Anantharaman ,  Kee-Bong Song ,  Romain Trilling

    IPC: H04B7/08 ,  H04L12/26

    CPC classification number: H04B7/082 ,  H04B7/0817 ,  H04B7/0871 ,  H04L43/0823

    Abstract: A mobile wireless device adapts receive diversity during discontinuous reception based on downlink signal quality, page indicators and page messages. When the downlink signal quality exceeds a pre-determined threshold, the mobile wireless device decodes a page indicator channel through an initial antenna, and otherwise, decodes a paging channel through the initial antenna without decoding the page indicator channel. The mobile wireless device switches to decoding the paging channel through an alternate antenna when a page indicator decodes as an erasure. When a paging message received through a single antenna decodes with an incorrect error checking code, the mobile wireless devices enables receive diversity through multiple antennas for subsequent decoding. The mobile wireless device switches between single antenna reception and multiple antenna reception based on tracking multiple consecutive error checking code failures and successes.

    Abstract translation: 移动无线设备基于下行链路信号质量，页面指示符和寻呼消息来适应不连续接收期间的接收分集。 当下行链路信号质量超过预定阈值时，移动无线设备通过初始天线解码页面指示符信道，否则，通过初始天线对寻呼信道进行解码，而不对页面指示符信道进行解码。 当页面指示符被解码为擦除时，移动无线设备切换到通过替代天线解码寻呼信道。 当通过单个天线接收的寻呼消息用不正确的错误校验码进行解码时，移动无线设备能够通过多个天线进行接收分集以进行后续解码。 基于跟踪多个连续的错误检查代码故障和成功，移动无线设备在单天线接收和多天线接收之间切换。

    Antenna Switching System with Adaptive Switching Criteria
    2.
    发明申请
    Antenna Switching System with Adaptive Switching Criteria 审中-公开
    具有自适应开关标准的天线开关系统

    公开(公告)号：US20160094250A1

    公开(公告)日：2016-03-31

    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

    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。

    METHODS AND APPARATUS FOR ADAPTIVE RECEIVER DIVERSITY IN A WIRELESS NETWORK
    5.
    发明申请
    METHODS AND APPARATUS FOR ADAPTIVE RECEIVER DIVERSITY IN A WIRELESS NETWORK 有权
    无线网络中自适应接收器多样性的方法和设备

    公开(公告)号：US20130288624A1

    公开(公告)日：2013-10-31

    申请号：US13779661

    申请日：2013-02-27

    Applicant: APPLE INC.

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

    IPC: H04B7/08

    CPC classification number: H04B7/0814 ,  H04B7/0817 ,  H04B7/0871 ,  H04W52/0209 ,  Y02D70/1262 ,  Y02D70/444

    Abstract: Apparatus and methods for implementing “intelligent” receive diversity management in e.g., a mobile device. In one implementation, the mobile device includes an LTE-enabled UE, and the intelligent diversity management includes selectively disabling receive diversity (RxD) in that device upon meeting a plurality of criteria including (i) a capacity criterion, and (ii) a connectivity criterion. In one variant, the capacity criterion includes ensuring that an achievable data rate associated with a single Rx (receive) chain is comparable to that with RxD.

    Abstract translation: 在例如移动设备中实现“智能”接收分集管理的装置和方法。 在一个实现中，移动设备包括启用LTE的UE，并且智能分集管理包括在满足多个标准时选择性地禁用该设备中的接收分集（RxD），包括（i）容量标准，和（ii）连接 标准。 在一个变型中，容量标准包括确保与单个Rx（接收）链相关联的可实现的数据速率与RxD的数据速率相当。

    Assisted management of radio resources across dual networks
    6.
    发明授权
    Assisted management of radio resources across dual networks 有权

    公开(公告)号：US10470088B2

    公开(公告)日：2019-11-05

    申请号：US15790230

    申请日：2017-10-23

    Applicant: Apple Inc.

    Inventor： Syed Aon Mujtaba ,  Tarik Tabet ,  Paul V. Flynn ,  Kee-Bong Song

    IPC: H04W36/00 ,  H04W76/28 ,  H04W36/14 ,  H04W36/32 ,  H04W68/04 ,  H04W68/12 ,  H04W88/06 ,  H04W88/08

    Abstract: A user equipment (UE) operating in a communication system comprising a base station and one or more UEs. The UE may be configured to operate on or “camp” on two different networks with one radio. In this exemplary system, the radio may be normally connected to the first network (NW1) and may from time to time be “tuned away” from NW1 to a second network (NW2). The UE may inform NW1 that it has tuned away to another network, e.g., using start and end indicators. This information may prevent NW1 from wasting downlink capacity by unnecessarily allocating downlink resources to the UE during the tune-away. Alternatively, or in addition, this information may prevent NW1 from penalizing the UE, e.g., by reducing its future downlink allocations, since the UE does not respond to NW1 commands during the tune-away.

    Detection of data scheduling activity for receiver selection
    9.
    发明授权
    Detection of data scheduling activity for receiver selection 有权

    公开(公告)号：US09832788B2

    公开(公告)日：2017-11-28

    申请号：US13924067

    申请日：2013-06-21

    Applicant: Apple Inc.

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

    IPC: H04W72/12 ,  H04W52/02 ,  H04W88/06

    CPC classification number: H04W72/1278 ,  H04W52/0216 ,  H04W52/0225 ,  H04W52/0274 ,  H04W72/12 ,  H04W88/06 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146

    Abstract: Mechanisms for operating a wireless user equipment device, to determine the state of data scheduling activity. Such activity state (and other information such as measurements of signal interference and/or channel condition) may be used to dynamically control the selection of a high-power high-performance receiver vs. a low-power basic receiver. A first mechanism involves transitioning to a high activity state and starting a timer upon each occurrence of scheduled subframe. A transition to the low activity state occurs whenever the timer expires. A second mechanism involves filtering a sequence of binary-valued indicators corresponding respectively to a sequence of time intervals. Each indicator indicates whether a subframe is scheduled during the corresponding time interval. The filter output is compared to a threshold to determine high/low activity state. The temporal width of the filter impulse response may be increased to support fast initial response without harming the accuracy of activity-state determination in the steady state.

    Methods and apparatus for adaptive receiver diversity in a wireless network
    10.
    发明授权
    Methods and apparatus for adaptive receiver diversity in a wireless network 有权
    无线网络中自适应接收机分集的方法和装置

    公开(公告)号：US09356679B2

    公开(公告)日：2016-05-31

    申请号：US14551733

    申请日：2014-11-24

    Applicant: APPLE INC.

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

    IPC: H04B7/08 ,  H04W52/02 ,  H04B1/18

    CPC classification number: H04B7/0814 ,  H04B7/0817 ,  H04B7/0871 ,  H04W52/0209 ,  Y02D70/1262 ,  Y02D70/444

    Abstract: Apparatus and methods for implementing “intelligent” receive diversity management in e.g., a mobile device. In one implementation, the mobile device includes an LTE-enabled UE, and the intelligent diversity management includes selectively disabling receive diversity (RxD) in that device upon meeting a plurality of criteria including (i) a capacity criterion, and (ii) a connectivity criterion. In one variant, the capacity criterion includes ensuring that an achievable data rate associated with a single Rx (receive) chain is comparable to that with RxD.

    Abstract translation: 在例如移动设备中实现“智能”接收分集管理的装置和方法。 在一个实现中，移动设备包括启用LTE的UE，并且智能分集管理包括在满足多个标准时选择性地禁用该设备中的接收分集（RxD），包括（i）容量标准，和（ii）连接 标准。 在一个变型中，容量标准包括确保与单个Rx（接收）链相关联的可实现的数据速率与RxD的数据速率相当。

Patent Agency Ranking