METHODS AND APPARATUS FOR POWER SAVING IN DISCONTINUOUS RECEPTION - ADAPTIVE NEIGHBOR CELL SEARCH DURATION
    41.
    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.

    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。

    Baseband power estimation and feedback mechanism

    公开(公告)号:US10200957B2

    公开(公告)日:2019-02-05

    申请号:US15838580

    申请日:2017-12-12

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for estimating baseband power consumption and using the baseband power consumption estimation to select baseband operation features. According to some embodiments, one or more baseband power consumption modifiers occurring during an estimation window may be identified. Baseband power consumption of the wireless device during the estimation window may be estimated based on the identified baseband power consumption modifiers occurring during the estimation window. Baseband data throughput of the wireless device during the estimation window may also be estimated. One or more baseband operation characteristics may be selected based at least in part on the estimated baseband power consumption during the estimation window, possibly in conjunction with the estimated baseband data throughput during the estimation window, current wireless medium conditions, and/or other considerations.

    Adaptive receive diversity
    44.
    发明授权

    公开(公告)号:US10110398B2

    公开(公告)日:2018-10-23

    申请号:US15179647

    申请日:2016-06-10

    Applicant: Apple Inc.

    Abstract: A wireless device comprises a primary antenna, a primary transceiver, one or more secondary antennas and one or more receive diversity chains. The receive diversity chains, in some embodiments, include transceiver capability. The wireless device measures and collects various statistics. Based on the statistics, the wireless device enables or disables one or more of the receive diversity chains with respect to a cellular radio access technology (RAT). A disabled receive diversity chain, in some instances is then powered down. During an interval when a receive diversity chain is disabled, the control logic periodically or on an event-driven basis enables a given receive diversity chain to probe channel quality indicator (CQI) and channel rank values. In some embodiments, a time interval for collecting a portion of the statistics, is adapted or backed off in anticipation of use of the receive diversity chain, based on traffic circumstances.

    Device and method for adaptive channel estimation

    公开(公告)号:US09660838B2

    公开(公告)日:2017-05-23

    申请号:US14290433

    申请日:2014-05-29

    Applicant: APPLE INC.

    Abstract: A method to be performed at a station configured to connect to a Long Term Evolution radio access network (LTE-RAN) to utilize enhanced Multimedia Broadcast Multicast Services using a Multicast-Broadcast Single-Frequency Network (MBSFN). The method including receiving a MBSFN subframe having a MBSFN subframe structure including a plurality of Orthogonal Frequency-Division Multiplexing (OFDM) symbols, a first one of the OFDM symbols having a first reference symbol inserted therein, a second one of the OFDM symbols having a second reference symbol inserted therein, determining a rate of change of channel conditions being experienced by the station and performing a non-destaggered channel estimation when the rate of change of channel conditions is greater than a predetermined threshold, the non-destaggered channel estimation using a first Channel Impulse Response (CIR) at the first OFDM symbol and a second CIR at the second OFDM symbol.

    Transitioning a video call between networks

    公开(公告)号:US09635596B2

    公开(公告)日:2017-04-25

    申请号:US14944156

    申请日:2015-11-17

    Applicant: Apple Inc.

    CPC classification number: H04W36/30 H04N7/147 H04N7/148 H04W36/14

    Abstract: A method for transitioning a video call is provided. The method can include a wireless communication device participating in a video call with a remote communication device via a first video call session established over a connection between the wireless communication device and a first cellular network. The video call can include a packet switched video stream carried over a first bearer and an audio stream carried over a second bearer. The method can further include the wireless communication device determining a degradation in a connection quality for the first cellular network; transitioning to a legacy cellular network having a circuit switched domain in response to the degradation in connection quality for the first cellular network; establishing a second video call session on the legacy cellular network; and using the second video call session to continue the video call on the legacy cellular network.

    SRVCC handover indication for remote party to voice call
    50.
    发明授权
    SRVCC handover indication for remote party to voice call 有权
    SRVCC切换指示用于远程方的语音呼叫

    公开(公告)号:US09526037B2

    公开(公告)日:2016-12-20

    申请号:US14168402

    申请日:2014-01-30

    Applicant: Apple Inc.

    Abstract: A method for providing indication of an SRVCC handover is disclosed. The method can include a first wireless communication device participating in a voice call with a second wireless communication device via a connection between the first wireless communication device and a first network. The method can further include the first wireless communication device determining a condition indicative of an impending SRVCC handover of the first wireless communication device from the first network to a legacy network. In response to the condition, the method can additionally include the first wireless communication device formatting a message including an indication that the first wireless communication device is going to perform the SRVCC handover and sending the message to the second wireless communication device prior to performance of the SRVCC handover.

    Abstract translation: 公开了一种提供SRVCC切换指示的方法。 该方法可以包括经由第一无线通信设备和第一网络之间的连接与第二无线通信设备参与语音呼叫的第一无线通信设备。 该方法还可以包括第一无线通信设备确定指示第一无线通信设备从第一网络到遗留网络即将发生的SRVCC切换的条件。 响应于该条件,该方法可以另外包括第一无线通信设备格式化包括第一无线通信设备将要执行SRVCC切换的指示的消息,并且在执行所述第一无线通信设备之前将消息发送到第二无线通信设备 SRVCC切换。

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