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    Antenna Switching System with Adaptive Switching Criteria
    21.
    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。

    In-device coexistence between radios
    22.
    发明授权
    In-device coexistence between radios 有权
    无线电之间的设备间共存

    公开(公告)号：US09297697B2

    公开(公告)日：2016-03-29

    申请号：US13910471

    申请日：2013-06-05

    Applicant: Apple Inc.

    Inventor： Syed A. Mujtaba ,  William S. Burchill

    IPC: H04W28/04 ,  G01J3/453 ,  H04B15/00 ,  G01N21/3504

    CPC classification number: G01J3/453 ,  G01J2003/4534 ,  G01N21/3504 ,  G01N2201/06113 ,  H04B1/406

    Abstract: A method for facilitating in-device coexistence between radios is provided. The method can include a processor implemented on the wireless communication device defining a coexistence policy for a first radio and a second radio co-located on the wireless communication device; and providing the coexistence policy to a coexistence management controller on the first radio via an interface between the processor and the first radio. The method can further include the second radio providing state information for the second radio to the first radio via an interface between the first radio and the second radio. The method can additionally include the coexistence management controller on the first radio using the state information to control operation of the first radio in accordance with the coexistence policy to mitigate interference with the second radio.

    Abstract translation: 提供了一种便于无线电设备间共存的方法。 该方法可以包括在无线通信设备上实现的处理器，其定义第一无线电的共存策略和位于无线通信设备上的第二无线电; 以及通过所述处理器和所述第一无线电之间的接口，向所述第一无线电装置上的共存管理控制器提供所述共存策略。 该方法还可以包括第二无线电通过第一无线电和第二无线电之间的接口向第一无线电提供第二无线电的状态信息。 该方法还可以使用状态信息在第一无线电中包括共存管理控制器，以根据共存策略来控制第一无线电的操作，以减轻与第二无线电的干扰。

    PHYSICAL DOWNLINK CONTROL CHANNEL DECODING
    25.
    发明申请
    PHYSICAL DOWNLINK CONTROL CHANNEL DECODING 有权
    物理下行链路控制信道解码

    公开(公告)号：US20150092893A1

    公开(公告)日：2015-04-02

    申请号：US14497071

    申请日：2014-09-25

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Navid Damji ,  Syed A. Mujtaba ,  Johnson O. Sebeni

    IPC: H04L27/26 ,  H04W52/02 ,  H04L5/00

    CPC classification number: H04L27/2649 ,  H04L5/0005 ,  H04L5/0053 ,  H04L27/2647 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25

    Abstract: Methods and apparatuses to reduce resource consumption by a mobile wireless device when decoding control channel information, such as a physical downlink control channel (PDCCH), in a subframe received from an LTE wireless network are disclosed. Representative methods include demodulating a first set of one or more PDCCH OFDM symbols contained in the subframe based on a first channel estimate; obtaining a second channel estimate based on a second OFDM symbol before demodulating a second set of one or more PDCCH OFDM symbols contained in the subframe based on both the first channel estimate and the second channel estimate. When the PDCCH indicates no downlink assignments for the subframe, the mobile wireless device enters a reduced power consumption mode after demodulating the PDCCH.

    Abstract translation: 公开了在从LTE无线网络接收的子帧中解码诸如物理下行链路控制信道（PDCCH）之类的控制信道信息时，减少移动无线设备的资源消耗的方法和设备。 代表性的方法包括基于第一信道估计来解调包含在子帧中的一个或多个PDCCH OFDM符号的第一集合; 基于第一信道估计和第二信道估计，在解调包含在子帧中的第一组一个或多个PDCCH OFDM符号之前，基于第二OFDM符号获得第二信道估计。 当PDCCH不指示子帧的下行链路分配时，移动无线设备在解调PDCCH之后进入降低的功耗模式。

    DELAYED AND BUNDLED RETRANSMISSIONS FOR LOW BANDWIDTH APPLICATIONS
    26.
    发明申请
    DELAYED AND BUNDLED RETRANSMISSIONS FOR LOW BANDWIDTH APPLICATIONS 有权
    用于低带宽应用的延迟和补偿恢复

    公开(公告)号：US20150092645A1

    公开(公告)日：2015-04-02

    申请号：US14498973

    申请日：2014-09-26

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Vinay R. Majjigi ,  Syed A. Mujtaba ,  Christian W. Mucke

    IPC: H04W52/02 ,  H04L1/18 ,  H04L1/16

    CPC classification number: H04W52/0222 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1854 ,  H04L1/1864 ,  H04L1/1887 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

    Abstract: Apparatus and methods are disclosed for performing delayed hybrid automatic repeat request (HARQ) communications in the downlink (DL) to reduce power consumption for a user equipment (UE) during a connected mode discontinuous reception (C-DRX) cycle. An enhanced NodeB can be configured to monitor a physical uplink control channel (PUCCH) for DL HARQ information to determine when the PUCCH contains a negative acknowledgement (NACK) message, and in response to determining that the PUCCH contains a NACK message, the eNodeB can wait until a next C-DRX ON duration to transmit a HARQ DL retransmission. The eNodeB can also determine whether or not to bundle the HARQ DL retransmission in consecutive transmission time intervals, based on a signal to interference plus noise ratio (SINR) associated with the UE.

    Abstract translation: 公开了用于在下行链路（DL）中执行延迟混合自动重传请求（HARQ）通信以减少在连续模式不连续接收（C-DRX）周期期间用户设备（UE）的功耗的装置和方法。 增强型节点B可以被配置为监视用于DL HARQ信息的物理上行链路控制信道（PUCCH）以确定PUCCH何时包含否定确认（NACK）消息，并且响应于确定PUCCH包含NACK消息，eNodeB可以 等待下一个C-DRX ON持续时间来发送HARQ DL重传。 eNodeB还可以基于与UE相关联的信号与干扰加噪声比（SINR）来确定是否在连续传输时间间隔中捆绑HARQ DL重传。

    SINGLE-RADIO DEVICE SUPPORTING COEXISTENCE BETWEEN MULTIPLE RADIO ACCESS TECHNOLOGIES
    27.
    发明申请
    SINGLE-RADIO DEVICE SUPPORTING COEXISTENCE BETWEEN MULTIPLE RADIO ACCESS TECHNOLOGIES 有权
    单一无线电设备支持多种无线电接入技术之间的共同点

    公开(公告)号：US20140242984A1

    公开(公告)日：2014-08-28

    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 ,  H04W48/18

    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.

    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耦合到天线的射频收发器电路。 电子设备可以包括基带处理器和实现用于处理多个无线电接入技术的协议栈的其他存储和处理电路。 存储和处理电路可以使用收发器电路使用第一无线电接入技术传送数据，同时周期性地中断数据的传送以使用第二无线电接入技术监视寻呼信道。 在执行寻呼信道监视操作时，存储和处理电路可以强制执行时间限制，确保使用第一无线电接入技术的操作不会超出所期望的中断。

    Method and apparatus for time division LTE transmission in unlicensed radio frequency bands
    28.
    发明授权
    Method and apparatus for time division LTE transmission in unlicensed radio frequency bands 有权

    公开(公告)号：US11115997B2

    公开(公告)日：2021-09-07

    申请号：US16272596

    申请日：2019-02-11

    Applicant: Apple Inc.

    Inventor： Farouk Belghoul ,  Tarik Tabet ,  Syed A. Mujtaba

    IPC: H04W72/12 ,  H04W76/15 ,  H04L1/18 ,  H04L5/00 ,  H04L27/00 ,  H04L5/14 ,  H04W72/04 ,  H04W16/14 ,  H04W84/12

    Abstract: Apparatus and methods for time division based communication between a wireless device and a wireless network in a licensed radio frequency (RF) band and an unlicensed RF band are disclosed. The wireless device receives downlink control information (DCI), via a primary component carrier (PCC) of a primary cell (Pcell) in the licensed RF band, indicating downlink (DL) data transmission via a secondary component carrier (SCC) of a secondary cell (Scell) in the unlicensed RF band. The wireless device receives via the SCC part of the DL data transmission and transmits a control message via the PCC in response. The wireless device sends a scheduling request (SR) to the eNodeB and receives uplink (UL) transmission opportunities in a combination of the licensed RF band and the unlicensed RF band. The wireless device performs a clear channel assessment before reserving and transmitting to the eNodeB in the unlicensed RF band.

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