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    Adaptive channel state feedback estimation
    3.
    发明授权
    Adaptive channel state feedback estimation 有权

    公开(公告)号：US09794024B2

    公开(公告)日：2017-10-17

    申请号：US14075816

    申请日：2013-11-08

    Applicant: Apple Inc.

    Inventor： Zhu Ji ,  Navid Damji ,  Johnson Sebeni

    IPC: H04L1/00 ,  H04W24/10 ,  H04L25/02 ,  H04B7/06

    CPC classification number: H04L1/0023 ,  H04B7/065 ,  H04L1/0026 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0224 ,  H04W24/10

    Abstract: Aspects of the present invention provide apparatuses and methods for adaptive channel state feedback (CSF) estimation techniques. Downlink transmissions can be received at a mobile device. The downlink transmissions can be received after the mobile device has entered a power saving mode of operation. The downlink transmission received can be a discontinuous downlink subframe and can include one or more pilot symbols. A channel variation factor of the transmission channel can be determined based on the received downlink transmission. Based on the amount of variation of the transmission channel, either an earlier-received or a later-received pilot symbol can be used for CSF estimation. Further, either higher or lower weighted filter coefficients can be selected for use in CSF estimation based on the amount of variation of the transmission channel.

    Methods and Apparatus for Power Saving in Discontinuous Reception-Adaptive Neighbor Cell Search Duration
    4.
    发明申请
    Methods and Apparatus for Power Saving in Discontinuous Reception-Adaptive Neighbor Cell Search Duration 审中-公开
    用于不连续接收 - 自适应邻居小区搜索持续时间中节能的方法和装置

    公开(公告)号：US20160029314A1

    公开(公告)日：2016-01-28

    申请号：US14872257

    申请日：2015-10-01

    Applicant: Apple Inc.

    Inventor： Navid Damji ,  Zhu Ji ,  Johnson Sebeni ,  Jason Shi ,  Li Su

    IPC: H04W52/02 ,  H04W36/00 ,  H04B17/309 ,  H04W76/04

    CPC classification number: H04W52/0225 ,  H04B17/309 ,  H04W36/0083 ,  H04W36/0088 ,  H04W52/0229 ,  H04W52/0245 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

    Abstract: Methods and apparatus for adaptively adjusting temporal parameters (e.g., neighbor cell search durations). In one embodiment, neighbor cell search durations during discontinuous reception are based on a physical channel metric indicating signal strength and quality (e.g. Reference Signal Received Power (RSRP), Received Signal Strength Indication (RSSI), Reference Signal Receive Quality (RSRQ), etc.) of a cell. In a second embodiment, neighbor cell search durations are based on a multitude of physical layer metrics from one or more cells. In one variant, the multitude of physical layer metrics may include signal strength and quality metrics from the serving base station as well as signal strength and quality indicators from neighbor cells derived from the cells respective synchronization sequences.

    Abstract translation: 用于自适应地调整时间参数（例如，相邻小区搜索持续时间）的方法和装置。 在一个实施例中，不连续接收期间的相邻小区搜索持续时间是基于指示信号强度和质量的物理信道度量（例如参考信号接收功率（RSRP），接收信号强度指示（RSSI），参考信号接收质量（RSRQ）等） 。）细胞。 在第二实施例中，相邻小区搜索持续时间基于来自一个或多个小区的多个物理层度量。 在一个变型中，多个物理层度量可以包括来自服务基站的信号强度和质量度量以及来自从小区相应的同步序列导出的相邻小区的信号强度和质量指示符。

    ADAPTIVE CHANNEL STATE FEEDBACK ESTIMATION
    5.
    发明申请
    ADAPTIVE CHANNEL STATE FEEDBACK ESTIMATION 有权
    自适应通道状态反馈估计

    公开(公告)号：US20140133329A1

    公开(公告)日：2014-05-15

    申请号：US14075816

    申请日：2013-11-08

    Applicant: Apple Inc.

    Inventor： Zhu Ji ,  Navid Damji ,  Johnson Sebeni

    IPC: H04W24/00

    CPC classification number: H04L1/0023 ,  H04B7/065 ,  H04L1/0026 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0224 ,  H04W24/10

    Abstract: Aspects of the present invention provide apparatuses and methods for adaptive channel state feedback (CSF) estimation techniques. Downlink transmissions can be received at a mobile device. The downlink transmissions can be received after the mobile device has entered a power saving mode of operation. The downlink transmission received can be a discontinuous downlink subframe and can include one or more pilot symbols. A channel variation factor of the transmission channel can be determined based on the received downlink transmission. Based on the amount of variation of the transmission channel, either an earlier-received or a later-received pilot symbol can be used for CSF estimation. Further, either higher or lower weighted filter coefficients can be selected for use in CSF estimation based on the amount of variation of the transmission channel.

    Abstract translation: 本发明的方面提供了用于自适应信道状态反馈（CSF）估计技术的装置和方法。 可以在移动设备处接收下行传输。 在移动设备进入省电操作模式之后，可以接收下行链路传输。 接收到的下行链路传输可以是不连续的下行链路子帧，并且可以包括一个或多个导频符号。 可以基于接收到的下行链路传输来确定传输信道的信道变化因子。 基于传输信道的变化量，先前接收的或稍后接收的导频符号可用于CSF估计。 此外，基于传输信道的变化量，可以选择较高或较低加权滤波器系数用于CSF估计。

    System and method for selective prevention of transmitting a scheduling request
    6.
    发明授权
    System and method for selective prevention of transmitting a scheduling request 有权

    公开(公告)号：US10187857B2

    公开(公告)日：2019-01-22

    申请号：US14498405

    申请日：2014-09-26

    Applicant: APPLE INC.

    Inventor： Samy Khay-Ibbat ,  Navid Damji ,  Shivesh Makharia ,  Johnson Sebeni ,  Sreevalsan Vallath ,  Longda Xing

    IPC: H04W52/22 ,  H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W76/28 ,  H04W84/04

    Abstract: A station that performs a method to coordinate transmissions of scheduling requests (SR) with OnDurations of a connected discontinuous reception (C-DRX) cycle. The station receives a packet at a packet arrival time relative to a schedule indicating the SR opportunities and onDurations, the SR opportunities occurring at a first interval, the onDurations occurring at a second interval, the first interval being less than the second interval. The station determines an SR opportunity subsequent to the packet arrival time that precedes an entirety of a subsequent onDuration, such that a transmission duration to transmit the SR and the packet maximally overlaps with the selected onDuration. A sleep mode of the processor of the station is used until a time associated with the selected SR opportunity. An active mode of the processor is used to transmit the SR and receive control channel information during the onDuration.

    Methods and apparatus for power saving in discontinuous reception—adaptive neighbor cell search duration
    8.
    发明授权
    Methods and apparatus for power saving in discontinuous reception—adaptive neighbor cell search duration 有权
    用于不连续接收 - 自适应相邻小区搜索持续时间内节电的方法和装置

    公开(公告)号：US09167519B2

    公开(公告)日：2015-10-20

    申请号：US13754774

    申请日：2013-01-30

    Applicant: Apple Inc.

    Inventor： Navid Damji ,  Zhu Ji ,  Johnson Sebeni ,  Jason Shi ,  Li Su

    IPC: H04W4/00 ,  H04W52/02

    CPC classification number: H04W52/0225 ,  H04B17/309 ,  H04W36/0083 ,  H04W36/0088 ,  H04W52/0229 ,  H04W52/0245 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

    Abstract: Methods and apparatus for adaptively adjusting temporal parameters (e.g., neighbor cell search durations). In one embodiment, neighbor cell search durations during discontinuous reception are based on a physical channel metric indicating signal strength and quality (e.g. Reference Signal Received Power (RSRP), Received Signal Strength Indication (RSSI), Reference Signal Receive Quality (RSRQ), etc.) of a cell. In a second embodiment, neighbor cell search durations are based on a multitude of physical layer metrics from one or more cells. In one variant, the multitude of physical layer metrics may include signal strength and quality metrics from the serving base station as well as signal strength and quality indicators from neighbor cells derived from the cells respective synchronization sequences.

    Abstract translation: 用于自适应地调整时间参数（例如，相邻小区搜索持续时间）的方法和装置。 在一个实施例中，不连续接收期间的相邻小区搜索持续时间是基于指示信号强度和质量的物理信道度量（例如参考信号接收功率（RSRP），接收信号强度指示（RSSI），参考信号接收质量（RSRQ）等） 。）细胞。 在第二实施例中，相邻小区搜索持续时间基于来自一个或多个小区的多个物理层度量。 在一个变型中，多个物理层度量可以包括来自服务基站的信号强度和质量度量以及来自从小区相应的同步序列导出的相邻小区的信号强度和质量指示符。

    Methods and Apparatus for Managing Radio Measurements During Discontinuous Reception
    9.
    发明申请
    Methods and Apparatus for Managing Radio Measurements During Discontinuous Reception 审中-公开
    在不连续接收期间管理无线电测量的方法和装置

    公开(公告)号：US20150271697A1

    公开(公告)日：2015-09-24

    申请号：US14733351

    申请日：2015-06-08

    Applicant: Apple Inc.

    Inventor： Zhu Ji ,  Jason Shi ,  Johnson Sebeni ,  Navid Damji ,  Li Su

    IPC: H04W24/10 ,  H04W24/08 ,  H04W76/04

    CPC classification number: H04W24/10 ,  H04B17/309 ,  H04W24/08 ,  H04W52/02 ,  H04W52/0216 ,  H04W76/28 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/24 ,  Y02D70/25

    Abstract: Methods and apparatus for managing radio measurements during discontinuous reception. In one exemplary embodiment, the distribution of Long Term Evolution (LTE) DRX measurements is staggered or distributed across multiple DRX cycles (which may be contiguous or non-contiguous) so as to reduce the transceiver activity and power consumption. The exemplary UE in one implementation only performs a subset of measurements during each DRX cycle. By staggering or distributing cell measurements over multiple DRX cycles, the UE can improve power consumption, while still conforming to measurement requirements.

    Abstract translation: 在不连续接收期间管理无线电测量的方法和装置。 在一个示例性实施例中，长期演进（LTE）DRX测量的分布在多个DRX周期（其可以是连续的或不连续的）上交错或分布，以便减少收发器活动和功率消耗。 在一个实现中的示例性UE仅在每个DRX周期期间执行测量的子集。 通过在多个DRX周期上交错或分配小区测量，UE可以提高功耗，同时仍然符合测量要求。

    METHODS AND APPARATUS FOR POWER SAVING IN DISCONTINUOUS RECEPTION - ADAPTIVE NEIGHBOR CELL SEARCH DURATION
    10.
    发明申请
    METHODS AND APPARATUS FOR POWER SAVING IN DISCONTINUOUS RECEPTION - ADAPTIVE NEIGHBOR CELL SEARCH DURATION 有权
    在不连续接收中节电的方法和装置 - 自适应邻域细胞搜索持续时间

    公开(公告)号：US20130196659A1

    公开(公告)日：2013-08-01

    申请号：US13754774

    申请日：2013-01-30

    Applicant: Apple Inc.

    Inventor： Navid Damji ,  Zhu Ji ,  Johnson Sebeni ,  Jason Shi ,  Li Su

    IPC: H04W52/02

    CPC classification number: H04W52/0225 ,  H04B17/309 ,  H04W36/0083 ,  H04W36/0088 ,  H04W52/0229 ,  H04W52/0245 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/24 ,  Y02D70/25

    Abstract: Methods and apparatus for adaptively adjusting temporal parameters (e.g., neighbor cell search durations). In one embodiment, neighbor cell search durations during discontinuous reception are based on a physical channel metric indicating signal strength and quality (e.g. Reference Signal Received Power (RSRP), Received Signal Strength Indication (RSSI), Reference Signal Receive Quality (RSRQ), etc.) of a cell. In a second embodiment, neighbor cell search durations are based on a multitude of physical layer metrics from one or more cells. In one variant, the multitude of physical layer metrics may include signal strength and quality metrics from the serving base station as well as signal strength and quality indicators from neighbor cells derived from the cells respective synchronization sequences.

    Abstract translation: 用于自适应地调整时间参数（例如，相邻小区搜索持续时间）的方法和装置。 在一个实施例中，不连续接收期间的相邻小区搜索持续时间是基于指示信号强度和质量的物理信道度量（例如参考信号接收功率（RSRP），接收信号强度指示（RSSI），参考信号接收质量（RSRQ）等） 。）细胞。 在第二实施例中，相邻小区搜索持续时间基于来自一个或多个小区的多个物理层度量。 在一个变型中，多个物理层度量可以包括来自服务基站的信号强度和质量度量以及来自从小区相应的同步序列导出的相邻小区的信号强度和质量指示符。

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