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    Adaptive C-DRX management
    22.
    发明授权
    Adaptive C-DRX management 有权

    公开(公告)号：US10993279B2

    公开(公告)日：2021-04-27

    申请号：US16663437

    申请日：2019-10-25

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Ajoy K. Singh ,  Sarma V. Vangala ,  Vinay R. Majjigi ,  Samy Khay-Ibbat

    IPC: H04W76/28

    Abstract: This disclosure relates to techniques for adaptive C-DRX Management. A wireless device and a cellular base station may establish a cellular link. According to some embodiments, the base station may monitor upcoming traffic with the wireless device. Based at least in part on the upcoming traffic for the wireless device, the base station may provide a command indicating to the wireless device to enter C-DRX. The command may further indicate to the wireless device a number of C-DRX cycles through which to remain in a low power state.

    Application dependent channel condition assessment
    24.
    发明授权
    Application dependent channel condition assessment 有权

    公开(公告)号：US09973957B2

    公开(公告)日：2018-05-15

    申请号：US14488499

    申请日：2014-09-17

    Applicant: Apple Inc.

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

    IPC: H04W24/10 ,  H04L25/02

    CPC classification number: H04W24/10 ,  H04L25/0202 ,  H04L25/0206

    Abstract: This disclosure relates to application dependent channel condition assessment mode selection for reduced power consumption in cellular communications. In one embodiment, a channel condition assessment mode may be selected for assessing a wireless communication channel used for a cellular link. The channel condition assessment mode may be selected from at least two channel condition assessment modes, and may be selected at least in part based on application characteristics of an application using the cellular link. Channel condition assessment may be performed according to the selected channel condition assessment mode. Channel condition assessment results obtained from the channel condition assessment may be transmitted to a cellular base station via the cellular link.

    Wi-Fi Adaptive Transmit Antenna Selection
    26.
    发明申请
    Wi-Fi Adaptive Transmit Antenna Selection 审中-公开

    公开(公告)号：US20180006677A1

    公开(公告)日：2018-01-04

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

    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.

    Wi-Fi Adaptive Transmit Antenna Selection
    27.
    发明申请
    Wi-Fi Adaptive Transmit Antenna Selection 有权
    Wi-Fi自适应发射天线选择

    公开(公告)号：US20160127007A1

    公开(公告)日：2016-05-05

    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: H04B1/44 ,  H04B7/04

    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.

    Abstract translation: 无线通信设备（UE）可以包括多个接收（RX）链和相关联的天线，以及与RX链中的一个共同定位的至少一个发射（TX）链。 UE可以在接收来自UE打算发送分组的相关接入点（AP）设备的分组期间跟踪天线增益的即时衰落。 UE还可以使用在UE内的多个RX链处接收的任何分组来跟踪长期天线增益。 在切换时刻，由UE决定是否切换天线。 如果瞬时衰落检测是基于在切换时刻之前的指定时间段之前接收的分组，则UE可以基于即时衰落跟踪的结果进行切换决定。 否则，UE可以基于长期天线增益跟踪的结果进行切换决定。

    Adaptive receive diversity during discontinuous reception in mobile wireless device
    28.
    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。

    DELAYED AND BUNDLED RETRANSMISSIONS FOR LOW BANDWIDTH APPLICATIONS
    29.
    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。

    Power Consumption Optimization for Cellular Communication via Power Amplifier Biasing
    30.
    发明申请
    Power Consumption Optimization for Cellular Communication via Power Amplifier Biasing 有权
    通过功率放大器偏置进行蜂窝通信的功耗优化

    公开(公告)号：US20150087351A1

    公开(公告)日：2015-03-26

    申请号：US14492623

    申请日：2014-09-22

    Applicant: Apple Inc.

    Inventor： Vinay R. Majjigi ,  Tarik Tabet ,  Christian W. Mucke ,  William S. Burchill

    IPC: H04W52/52 ,  H04W72/04

    CPC classification number: H04W52/52 ,  H04L1/0003

    Abstract: This disclosure relates to optimizing power consumption for cellular communication based on transport block size in combination with channel condition measurements via power amplifier biasing. According to one embodiment, an indication of a transport block size to be used for uplink communication with a base station may be received. It may be determined that the transport block size provides more robust communication characteristics than required for current channel conditions. A power amplifier (PA) bias current for uplink communication with the cellular base station may be selected based at least in part on determining that the transport block size provides more robust communication characteristics than required for the current channel conditions. In particular, PA bias current selection may be biased to reduce power consumption at a cost of greater non-linearity based on the transport block size providing more robust communication characteristics than required for the current channel conditions.

    Abstract translation: 本公开涉及基于传输块大小与通过功率放大器偏置的信道条件测量结合来优化用于蜂窝通信的功率消耗。 根据一个实施例，可以接收要用于与基站的上行链路通信的传输块大小的指示。 可以确定传输块大小提供比当前信道条件所需的更强健的通信特性。 可以至少部分地基于确定传输块大小提供比当前信道条件所需的更强的通信特性来选择用于与蜂窝基站的上行链路通信的功率放大器（PA）偏置电流。 特别地，PA偏置电流选择可以被偏置以基于提供比当前信道条件所需要的更强大的通信特性的传输块大小以更大的非线性的代价来降低功耗。

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