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    Wake-Up Frame with Configurable Payload
    2.
    发明申请
    Wake-Up Frame with Configurable Payload 审中-公开

    公开(公告)号：US20190069231A1

    公开(公告)日：2019-02-28

    申请号：US16109985

    申请日：2018-08-23

    Applicant: Apple Inc.

    Inventor： Jarkko L. Kneckt ,  Matthew L. Semersky ,  Christiaan A. Hartman ,  Oren Shani ,  Yong Liu ,  Xiaowen Wang ,  Tushar R. Shah ,  Yoel Boger ,  Rajneesh Kumar ,  Josef Peery ,  Christian W. Mucke ,  Guoqing Li

    IPC: H04W52/02 ,  H04W28/06

    Abstract: An interface circuit in an electronic device (such as an access point) may utilize a configurable wake-up-frame format. During operation, the interface circuit may receive a wake-up-radio (WUR)-setup request associated with a recipient electronic device, where the WUR-setup request specifies a proposed configurable wake-up-frame format. In response, the electronic device may determine the configurable wake-up-frame format to be used based at least in part on the proposed configurable wake-up-frame format. Then, the interface circuit may provide a WUR-setup response intended for the recipient electronic device, where the WUR-setup response specifies the configurable wake-up-frame format selected for use. Note that the configurable wake-up-frame format may specify a payload length in a wake-up frame and/or one or more operations of at least one of the recipient electronic device or the electronic device after the wake-up frame is transmitted by the electronic device.

    Efficient Scan and Service Discovery
    4.
    发明申请
    Efficient Scan and Service Discovery 审中-公开

    公开(公告)号：US20180376419A1

    公开(公告)日：2018-12-27

    申请号：US16013697

    申请日：2018-06-20

    Applicant: Apple Inc.

    Inventor： Guoqing Li ,  Yong Liu ,  Oren Shani ,  Christiaan A. Hartman ,  Xiaowen Wang ,  Christian W. Mucke ,  Tushar R. Shah ,  Jarkko L. Kneckt ,  Matthew L. Semersky ,  Yoel Boger ,  Josef Peery ,  Rajneesh Kumar

    IPC: H04W52/02

    Abstract: An interface circuit in an electronic device (such as an access point) may provide a wake-up beacon to a recipient electronic device. During operation, the interface circuit may provide a wake-up beacon associated with a predefined sub-channel in one or more channels in a band of frequencies, where the wake-up beacon is for a wake-up radio in the recipient electronic device. Moreover, the wake-up beacon may be provided within an associated time interval, such as a keep-alive interval of the electronic device. In some embodiments, the wake-up beacon includes a field with channel information that specifies one or more second channels used by a main radio in the recipient electronic device. Alternatively or additionally, the wake-up beacon may include a field with service information that specifies one or more types of services and/or a field with information specifying a transmit power of the interface circuit.

    Wi-Fi adaptive transmit antenna selection
    5.
    发明授权
    Wi-Fi adaptive transmit antenna selection 有权

    公开(公告)号：US10014900B2

    公开(公告)日：2018-07-03

    申请号：US15707246

    申请日：2017-09-18

    Applicant: Apple Inc.

    Inventor： Xiaowen Wang ,  Syed Aon Mujtaba ,  Vinay R. Majjigi ,  Joonsuk Kim

    IPC: H04B7/00 ,  H04B1/40 ,  H04B7/08 ,  H04B7/06 ,  H04W88/08 ,  H04W84/12

    CPC classification number: H04B1/40 ,  H04B7/061 ,  H04B7/0817 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/10

    Abstract: Wireless communication devices (UEs) may include multiple receive (RX) chains and associated antennas, and at least one transmit (TX) chain co-located with one of the RX chains. The UE may track instant fading of the antenna gain(s) during reception of packets from an associated access point (AP) device to which the UE intends to transmit packets. The UE may also track long term antenna gain(s), using any packets received at the multiple RX chains within the UE. At a switching occasion, a decision is made by the UE whether to switch antennas. If the instant fading detection is based on packets received no later than a specified time period prior to the switching occasion, then the UE may make the switching decision based on the results of the instant fading tracking. Otherwise, the UE may make the switching decision based on the results of the long term antenna gain tracking.

    Arbitrator for multi-radio antenna switching
    6.
    发明授权
    Arbitrator for multi-radio antenna switching 有权

    公开(公告)号：US09853681B2

    公开(公告)日：2017-12-26

    申请号：US14870119

    申请日：2015-09-30

    Applicant: Apple Inc.

    Inventor： Vinay R. Majjigi ,  Syed Aon Mujtaba ,  Xiaowen Wang

    IPC: H04B1/44 ,  H04B7/06 ,  H04B7/08 ,  H04W88/06 ,  H04W84/12

    CPC classification number: H04B1/44 ,  H04B7/0602 ,  H04B7/0802 ,  H04W84/12 ,  H04W88/06

    Abstract: A user equipment device (UE) may be configured to collect first performance information from antennas of a first plurality of antennas. The first plurality of antennas may be coupled to a first radio of the UE that may be configured to perform wireless communications according to a first RAT. The UE may determine, based on at least the first performance information, a highest performing antenna of the first plurality of antennas to use for communications according to the first RAT. Additionally, the UE may determine, also based on at least the first performance information, a first antenna of a second plurality of antennas to use for communications according to a second RAT. The second plurality of antennas may be coupled to a second radio of the UE that may be configured to perform wireless communications according to the second RAT.

    Single-radio device supporting coexistence between multiple radio access technologies
    7.
    发明授权
    Single-radio device supporting coexistence between multiple radio access technologies 有权

    公开(公告)号：US09750075B2

    公开(公告)日：2017-08-29

    申请号：US14231479

    申请日：2014-03-31

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  Wen Zhao ,  Xiaowen Wang ,  Vinay Majjigi

    IPC: H04W76/04 ,  H04W88/06 ,  H04W48/18 ,  H04W24/00 ,  H04W68/00

    CPC classification number: H04W76/27 ,  H04W24/00 ,  H04W48/18 ,  H04W68/00 ,  H04W88/06

    Abstract: Electronic devices may be provided that contain wireless communication circuitry. The wireless communication circuitry may include radio-frequency transceiver circuitry coupled to antennas. An electronic device may include a baseband processor and other storage and processing circuitry that implements protocol stacks for handling multiple radio access technologies. The storage and processing circuitry may use the transceiver circuitry to convey data using a first radio access technology while periodically interrupting the conveying of the data to monitor a paging channel using a second radio access technology. In performing the paging channel monitoring operations, the storage and processing circuitry may enforce a time limit that ensures that operations using the first radio access technology are not disrupted more than desired.

    LTE/1x dual-standby with single-chip radio
    8.
    发明授权
    LTE/1x dual-standby with single-chip radio 有权
    LTE / 1x双待单芯片收音机

    公开(公告)号：US09497652B2

    公开(公告)日：2016-11-15

    申请号：US14750534

    申请日：2015-06-25

    Applicant: Apple Inc.

    Inventor： Syed Aon Mujtaba ,  Wen Zhao ,  Xiaowen Wang ,  Vinay Majjigi ,  Isabel G. Mahe

    IPC: H04B1/04 ,  H04W24/08 ,  H04W68/00 ,  H04W88/06 ,  H04B7/06 ,  H04B7/08 ,  H04W24/00 ,  H04W88/10

    CPC classification number: H04W24/08 ,  H04B1/26 ,  H04B7/0602 ,  H04B7/0802 ,  H04W24/00 ,  H04W68/00 ,  H04W88/06 ,  H04W88/10

    Abstract: Electronic devices may be provided that contain wireless communication circuitry. The wireless communication circuitry may include radio-frequency transceiver circuitry coupled to antennas by switching circuitry. Multiple radio access technologies may be supported. A device may include first and second antennas. Control circuitry can configure the transceiver circuitry and switching circuitry to support operation of the device in active and idle modes for each radio access technology. In some configurations, both antennas may be used to support operations associated with one of the radio access technologies. In other configurations, the first antenna may be used to support operations with a first of the radio access technologies while the second antenna is used to support operations with a second of the radio access technologies.

    Abstract translation: 可以提供包含无线通信电路的电子设备。 无线通信电路可以包括通过开关电路耦合到天线的射频收发器电路。 可以支持多种无线电接入技术。 设备可以包括第一和第二天线。 控制电路可以配置收发器电路和开关电路，以支持每个无线电接入技术在主动和空闲模式下的设备操作。 在一些配置中，两个天线可以用于支持与无线电接入技术之一相关联的操作。 在其他配置中，第一天线可以用于支持具有第一无线电接入技术的操作，而第二天线用于支持具有第二无线电接入技术的操作。

    Wi-Fi Adaptive Receiver Diversity
    9.
    发明申请
    Wi-Fi Adaptive Receiver Diversity 有权
    Wi-Fi自适应接收机多样性

    公开(公告)号：US20160127028A1

    公开(公告)日：2016-05-05

    申请号：US14871794

    申请日：2015-09-30

    Applicant: APPLE INC.

    Inventor： Xiaowen Wang ,  Vinay R. Majjigi ,  Joonsuk Kim ,  Syed Aon Mujtaba

    IPC: H04B7/08 ,  H04B7/04 ,  H04B17/318

    CPC classification number: H04B7/0817 ,  H04B7/0413 ,  H04B7/0877 ,  H04B17/12 ,  H04B17/318 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/168 ,  Y02D70/26 ,  Y02D70/444

    Abstract: Wireless communication devices with multiple receive (RX) chains may be operated to maintain high performance while saving power. This may be accomplished by evaluating signal strength during transmission of the RX packets, and/or evaluating a possible imbalance (gain difference) between the multiple RX chains within the wireless communication device. Signal strength (or good signal) detection may be enabled when non-MIMO (non-multiple-in-multiple-out) transmissions are taking place, while imbalance detection (antenna gain comparison) may be enabled when a specified number of single-stream packets have been received. Once the decision has been made to operate in a reduced number RX path mode, decision to reactivate one or more additional RX paths may be made based on MIMO detection, a detection of a drop in signal quality, and/or upon expiration of a power save timer.

    Abstract translation: 具有多个接收（RX）链的无线通信设备可以被操作以在节省电力的同时保持高性能。 这可以通过在RX分组的传输期间评估信号强度和/或评估无线通信设备内的多个RX链之间的可能的不平衡（增益差）来实现。 当发生非MIMO（非多重多输出）传输时，可以启用信号强度（或良好信号）检测，而当指定数量的单流时，可以启用不平衡检测（天线增益比较） 已收到数据包。 一旦做出了以减少数量的RX路径模式操作的决定，可以基于MIMO检测，信号质量下降检测和/或功率失效来重新激活一个或多个附加RX路径的决定 保存定时器。

    Apparatus and methods for synchronization recovery in a hybrid network
    10.
    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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