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    Waveform design for Wi-Fi time-of-flight estimation
    22.
    发明授权
    Waveform design for Wi-Fi time-of-flight estimation 有权

    公开(公告)号：US10034133B2

    公开(公告)日：2018-07-24

    申请号：US15218434

    申请日：2016-07-25

    Applicant: Apple Inc.

    Inventor： Syed Aon Mujtaba ,  Xiaowen Wang

    IPC: H04W24/00 ,  H04W4/02 ,  H04L27/18 ,  G01S11/02 ,  G01S11/08 ,  H04L27/00 ,  H04W64/00 ,  H04L27/26

    Abstract: Some embodiments relate to a waveform design for time-of-flight estimation in a wireless communication system. The waveform may include a number N of signal tones, wherein the number N of signal tones is greater than a number M of signal tones that the receiving wireless device is configured to decode. Upon receipt of the waveform, the receiving wireless device may store a timestamp which indicates a time of receipt of the waveform. The receiving wireless device may decode M of the N signal tones. For example, the receiving wireless device may decode the middle M signal tones of the N signal tones. One or more of the transmitting or receiving wireless devices may then estimate a distance between them based at least in part on the timestamp.

    Wi-Fi adaptive transmit antenna selection
    25.
    发明授权
    Wi-Fi adaptive transmit antenna selection 有权

    公开(公告)号：US09768825B2

    公开(公告)日：2017-09-19

    申请号：US14871756

    申请日：2015-09-30

    Applicant: Apple Inc.

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

    IPC: H04B7/00 ,  H04B1/40 ,  H04B7/06 ,  H04B7/08 ,  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.

    Dual network mobile device radio resource management
    27.
    发明授权
    Dual network mobile device radio resource management 有权
    双网移动设备无线资源管理

    公开(公告)号：US09445419B2

    公开(公告)日：2016-09-13

    申请号：US14444818

    申请日：2014-07-28

    Applicant: Apple Inc.

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

    IPC: H04W72/04 ,  H04W72/00 ,  H04W88/06 ,  H04W68/12 ,  H04L5/00

    CPC classification number: H04W72/048 ,  H04L5/0092 ,  H04W68/12 ,  H04W72/00 ,  H04W72/04 ,  H04W88/06

    Abstract: A single chip mobile wireless device capable of receiving and transmitting over one wireless network at a time maintains registration on two wireless communication networks that each use different communication protocols in parallel. Periodically, the mobile wireless device tunes one or more receivers from a first wireless network to a second wireless network in order to listen for paging messages addressed to the mobile wireless device from the second wireless network. The first wireless network suspends allocation of radio resources to the mobile wireless device based on receipt of a suspension message from the mobile wireless device, or based on knowledge of a paging cycle for mobile wireless device in the second wireless network, or based on detection of an out of synchronization condition with the mobile wireless device.

    Abstract translation: 一次能够通过一个无线网络接收和发送的单芯片移动无线设备在两个并行地使用不同通信协议的无线通信网络上保持注册。 周期性地，移动无线设备将一个或多个接收器从第一无线网络调谐到第二无线网络，以便从第二无线网络监听寻址到移动无线设备的寻呼消息。 第一无线网络基于接收到来自移动无线设备的暂停消息，或者基于第二无线网络中针对移动无线设备的寻呼周期的知识，或基于对第二无线设备的检测 与移动无线设备不同步的情况。

    Mobile Terminated IMS Calls on Devices Which Support Wi-Fi and Cellular Radios
    28.
    发明申请
    Mobile Terminated IMS Calls on Devices Which Support Wi-Fi and Cellular Radios 审中-公开
    移动终端IMS呼叫支持Wi-Fi和蜂窝无线电的设备

    公开(公告)号：US20160174191A1

    公开(公告)日：2016-06-16

    申请号：US14870395

    申请日：2015-09-30

    Applicant: Apple Inc.

    Inventor： Ajoy K. Singh ,  Paul V. Flynn ,  Syed Aon Mujtaba ,  Vinay R. Majjigi ,  Wen Zhao ,  Xiaowen Wang

    IPC: H04W68/12 ,  H04W60/00

    Abstract: Embodiments relate to apparatus, systems, and methods for reception of calls on a mobile device that includes Wi-Fi and cellular radios. The mobile device may be configured to establish communication on a Wi-Fi network with a cellular carrier. The mobile device may further be configured to register a first IP address with an IMS server for the Wi-Fi network communication and register a second IP address with the IMS server for the cellular network communication (or register different ports of a single IP address with Wi-Fi and cellular). Upon occurrence of a mobile terminating call from the cellular carrier, the mobile device may receive an incoming call notification on one or both of the Wi-Fi network using the first IP address and the cellular network using the second IP address.

    Abstract translation: 实施例涉及用于在包括Wi-Fi和蜂窝无线电的移动设备上接收呼叫的装置，系统和方法。 移动设备可以被配置为在具有蜂窝运营商的Wi-Fi网络上建立通信。 移动设备还可以被配置为向用于Wi-Fi网络通信的IMS服务器注册第一IP地址并且向用于蜂窝网络通信的IMS服务器注册第二IP地址（或者向单个IP地址的不同端口注册 Wi-Fi和蜂窝）。 一旦发生来自蜂窝载波的移动终端呼叫，则移动设备可以使用第一IP地址和使用第二IP地址的蜂窝网络在一个或两个Wi-Fi网络上接收呼入通知。

    Arbitrator for Multi-Radio Antenna Switching
    29.
    发明申请
    Arbitrator for Multi-Radio Antenna Switching 有权
    多无线电天线切换仲裁员

    公开(公告)号：US20160127006A1

    公开(公告)日：2016-05-05

    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 ,  H04B7/04 ,  H04W24/10

    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.

    Abstract translation: 用户设备设备（UE）可以被配置为从第一多个天线的天线收集第一性能信息。 第一多个天线可以耦合到UE的第一无线电，其可被配置为根据第一RAT执行无线通信。 UE可以至少基于第一性能信息确定第一多个天线中用于根据第一RAT的通信的最高性能的天线。 此外，UE还可以至少基于第一性能信息确定第二多个天线的第一天线，以用于根据第二RAT的通信。 第二多个天线可以耦合到UE的第二无线电设备，其可被配置为根据第二RAT执行无线通信。

    Transmission power modulation to facilitate in-device coexistence between wireless communication technologies
    30.
    发明授权
    Transmission power modulation to facilitate in-device coexistence between wireless communication technologies 有权
    传输功率调制，以促进无线通信技术之间的设备间共存

    公开(公告)号：US09191904B2

    公开(公告)日：2015-11-17

    申请号：US14331059

    申请日：2014-07-14

    Applicant: Apple Inc.

    Inventor： William S. Burchill ,  Vinay R. Majjigi ,  Xiaowen Wang

    IPC: H04W52/02 ,  H04W52/24 ,  H04W52/28 ,  H04W88/06

    CPC classification number: H04W52/287 ,  H04W52/243 ,  H04W52/38 ,  H04W88/06

    Abstract: A method of modulating transmission power to facilitate in-device coexistence between wireless communication technologies is provided. The method can include determining a scheduled time period during which data is received by a device via a first wireless communication technology. The method can further include reducing a transmission power of a transmission from the device via a second wireless communication technology to a threshold level prior to the scheduled time period and controlling the transmission power so that the transmission power does not exceed the threshold level during the scheduled time period. The method can additionally include, subsequent to the time period, increasing the transmission power to a level exceeding the threshold level.

    Abstract translation: 提供了一种调制发射功率以促进无线通信技术之间的设备间共存的方法。 该方法可以包括确定由设备经由第一无线通信技术接收数据的调度时间段。 该方法还可以包括在调度的时间段之前将来自设备的传输的传输功率经由第二无线通信技术降低到阈值水平，并且控制传输功率，使得传输功率在调度期间不超过阈值电平 时间段。 该方法还可以包括在该时间段之后，将发送功率提高到超过阈值水平的水平。

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