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    Real-time relay of wireless communications
    2.
    发明授权
    Real-time relay of wireless communications 有权

    公开(公告)号：US10178711B2

    公开(公告)日：2019-01-08

    申请号：US15708584

    申请日：2017-09-19

    申请人： APPLE INC.

    发明人： Lei Li ,  Xiaojun Chen ,  Vusthla Sunil Reddy ,  Peter M. Agboh ,  Mohit Narang

    IPC分类号： H04W84/18 ,  H04W88/04 ,  H04L5/00 ,  H04W72/08 ,  H04W72/04 ,  H04W88/06 ,  H04W4/80 ,  H04L1/00

    摘要： Exemplary embodiments include a system having a first wireless audio output device and a second wireless audio output device. One of the first or second audio output devices is configured to one of connect as a slave to a source device in a first piconet and connect as a master to the other one of the first or second audio output devices in a second piconet. The one of the first or second wireless audio output devices determines whether an audio packet transmitted by the source device via the first piconet was received by the first wireless audio output device and the second wireless audio output device, and, when at least one of the first wireless audio output device or the second wireless audio output device did not receive the audio packet, the audio packet is exchanged between the first and second wireless audio output devices via the second piconet.

    SUB-CHANNEL SELECTION BASED ON TRANSMIT POWER
    3.
    发明申请
    SUB-CHANNEL SELECTION BASED ON TRANSMIT POWER 审中-公开
    基于发射功率的子频道选择

    公开(公告)号：US20160249361A1

    公开(公告)日：2016-08-25

    申请号：US14850834

    申请日：2015-09-10

    申请人： Apple Inc.

    发明人： Lei Li ,  Xiaojun Chen ,  Vusthla Sunil Reddy ,  Diego C. Hernandez ,  Peter M. Agboh ,  Mohit Narang ,  Ruben Caballero ,  Indranil S. Sen

    IPC分类号： H04W72/04 ,  H04L5/00

    CPC分类号： H04L5/0064 ,  H04L5/006 ,  H04W72/0453 ,  H04W72/085 ,  H04W84/12

    摘要： In order to improve the quality of communication between electronic devices, one or more sub-channels used during communication between the electronic devices are dynamically modified based on one or more performance metrics and allowed transmit powers of the sub-channels. In particular, when the one or more performance metrics indicate that a distance between the electronic devices falls within a mid-range of distances, the one or more performance metrics may be used to guide selective changes to the sub-channels used during the communication based on the allowed transmit powers. The changes to the sub-channels used during the communication may increase, decrease or leave the total bandwidth unchanged. Moreover, by changing the sub-channels used during the communication, the allowed transmit power(s) of the sub-channel(s) used may be increased, which may improve the performance during the communication.

    摘要翻译： 为了提高电子设备之间的通信质量，基于一个或多个性能度量和子信道的允许发送功率动态地修改在电子设备之间通信期间使用的一个或多个子信道。 特别地，当一个或多个性能度量指示电子设备之间的距离落在距离的中间范围内时，可以使用一个或多个性能度量来指导在基于通信期间使用的子信道的选择性改变 关于允许的发射功率。 在通信期间使用的子信道的改变可以增加，减少或保持总带宽不变。 此外，通过改变在通信期间使用的子信道，可以增加所使用的子信道的允许发送功率，这可以提高通信期间的性能。

    Apparatus and method for managing ultra wideband (UWB) occupied bandwidths
    7.
    发明授权
    Apparatus and method for managing ultra wideband (UWB) occupied bandwidths 有权

    公开(公告)号：US10958306B2

    公开(公告)日：2021-03-23

    申请号：US16818191

    申请日：2020-03-13

    申请人： Apple Inc.

    发明人： Xiaoming Yu ,  Alejandro J. Marquez ,  Lei Li ,  Peter M. Agboh ,  Shang-Te Yang ,  Vusthla Sunil Reddy ,  Pradeep K. Marri ,  Manjit S. Walia ,  Ali Pourghorban Saghati

    IPC分类号： H04B1/7176 ,  H04B1/7163 ,  H04B1/717

    摘要： Some embodiments include a system, method, and computer program product for managing the Ultra Wideband (UWB) systems, especially when the UWB system is collocated with another wireless system (e.g., WiFi) to transmit and/or receive UWB signals with an occupied bandwidth (OBW) that satisfies a UWB OBW standard (e.g., a UWB OBW>=500 MHz.) In some embodiments a TailBit signal (e.g., a periodic signal at a selected frequency) is added to a UWB packet to generate frequency components at the selected frequency that enables the power spectrum of the TailBit UWB signal to satisfy the UWB OBW standard. In some embodiments an altered code sequence is used to generate an altered spread signal, where the altered code sequence reduces or removes a frequency component peak near DC frequency of the power spectrum of an altered UWB signal, resulting in altered UWB OBW that satisfies the UWB OBW standard.

    METHODS AND APPARATUS FOR RAPID AND COST EFFECTIVE TESTING OF WIRELESS SYSTEMS
    9.
    发明申请
    METHODS AND APPARATUS FOR RAPID AND COST EFFECTIVE TESTING OF WIRELESS SYSTEMS 审中-公开
    无线系统快速有效测试的方法与装置

    公开(公告)号：US20140177459A1

    公开(公告)日：2014-06-26

    申请号：US13725801

    申请日：2012-12-21

    申请人： APPLE INC.

    发明人： Alf O. Watt ,  David B. Cheung ,  Camille Chen ,  Lei Li ,  Hsin-Yao Chen

    IPC分类号： H04W24/00

    CPC分类号： H04B17/14 ,  H04L41/0806 ,  H04L43/50

    摘要： Apparatus and methods for rapid, cost effective testing of wireless systems. In one embodiment, a unit under test (UUT) is tested by a test “server”. The UUT and test server communicate via a “connectionless” protocol which is based on beacons (and beacon responses) which can carry one or more test primitives. The aforementioned “connection-less” test protocol can be performed without wireless network configuration, which greatly reduces test time, Additionally, exemplary solutions are presented for “lock-up” of the UUT and the test server.

    摘要翻译： 无线系统快速，经济高效测试的装置和方法。 在一个实施例中，被测单元（UUT）由测试“服务器”测试。 UUT和测试服务器通过基于可携带一个或多个测试原语的信标（和信标响应）的“无连接”协议进行通信。 上述“无连接”测试协议可以在没有无线网络配置的情况下执行，这大大减少了测试时间。另外，呈现了UUT和测试服务器的“锁定”的示例性解决方案。

    Per packet antenna switch diversity
    10.
    发明授权
    Per packet antenna switch diversity 有权

    公开(公告)号：US10862567B2

    公开(公告)日：2020-12-08

    申请号：US15709360

    申请日：2017-09-19

    申请人： Apple Inc.

    发明人： Lei Li ,  Peter M. Agboh ,  Xiaojun Chen ,  Qiyang Wu ,  Vusthla Sunil Reddy ,  Mohit Narang

    IPC分类号： H04B7/08 ,  H04B1/44 ,  H04B7/06 ,  H04L5/14 ,  H04B17/12 ,  H04B17/318 ,  H04W72/04

    摘要： A wireless communication device includes a number of radio-frequency (RF) antennas and one or more radio circuits. Each radio circuit includes a receive (RX) chain to process RX signals and a transmit (TX) chain to process TX signals. An RF switch network couples at least one RF antenna to at least one radio circuit. A baseband processor controls a configuration of the RF switch network. The baseband processor determines a plurality of parameters and controls the RF switch network based on at least one of the parameters. The parameters are determined during a training interval including at least an inter-frame space (IFS). The configuration of the RF switch network is based on the determined parameters and is employed for selection of an antenna to improve a link performance when used for communication of a next packet following the IFS.