Paging mechanisms for link-budget-limited user devices

    公开(公告)号:US10264545B2

    公开(公告)日:2019-04-16

    申请号:US15414754

    申请日:2017-01-25

    Applicant: Apple Inc.

    Abstract: Various mechanisms for paging link-budget-limited (LBL) devices are disclosed, including: (1) transmitting paging message with non-conventional paging identifier; (2) transmitting paging message(s) with increased power; (3) repeating transmission of paging message to support combining at receiver. Various mechanisms for UE device to signal LBL status are disclosed, including, transmitting status flag or special value of DRX cycle to network node as part of tracking area update and/or attach request. The network node informs a base station of the device's LBL status as part of a paging message. (The network node may, e.g., assign an S-RNTI to the LBL device from a reserved subset of S-RNTI space.) The base station invokes a paging enhancement mechanism when paging an LBL device. Alternatively, the base station may page UE devices without knowledge of LBL status, e.g., by counting paging attempts for a given UE, and boosting power after the Nth paging attempt.

    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
    43.
    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.

    Paging Mechanisms for Link-Budget-Limited User Devices

    公开(公告)号:US20170135067A1

    公开(公告)日:2017-05-11

    申请号:US15414754

    申请日:2017-01-25

    Applicant: Apple Inc.

    Abstract: Various mechanisms for paging link-budget-limited (LBL) devices are disclosed, including: (1) transmitting paging message with non-conventional paging identifier; (2) transmitting paging message(s) with increased power; (3) repeating transmission of paging message to support combining at receiver. Various mechanisms for UE device to signal LBL status are disclosed, including, transmitting status flag or special value of DRX cycle to network node as part of tracking area update and/or attach request. The network node informs a base station of the device's LBL status as part of a paging message. (The network node may, e.g., assign an S-RNTI to the LBL device from a reserved subset of S-RNTI space.) The base station invokes a paging enhancement mechanism when paging an LBL device. Alternatively, the base station may page UE devices without knowledge of LBL status, e.g., by counting paging attempts for a given UE, and boosting power after the Nth paging attempt.

    Application-Aware Multiple Wireless Radio-Access Technology Coexistence Solution and Time Sharing Between Multiple Radio-Access Technologies for In-Device Coexistence
    46.
    发明申请
    Application-Aware Multiple Wireless Radio-Access Technology Coexistence Solution and Time Sharing Between Multiple Radio-Access Technologies for In-Device Coexistence 审中-公开
    应用感知多个无线电接入技术共存解决方案和多个无线接入技术之间的时间共享,用于设备间共存

    公开(公告)号:US20160174280A1

    公开(公告)日:2016-06-16

    申请号:US14868288

    申请日:2015-09-28

    Applicant: Apple Inc.

    CPC classification number: H04W76/15 H04W88/06

    Abstract: A user equipment (UE) device may be configured to effectively manage coexistence of multiple radio access technologies (RATs) on the device. Respective controllers responsible for at least partially managing wireless communications according to corresponding respective RATs may communicate to each other expected data transfer patterns that take place over their respective communications links, including application-specific data transfer patterns and data-transfer-mechanism-specific data transfer patterns. The RAT controllers may manage their respective data transfers according to the expected data-transfer pattern information associated with the other RATs received from each in order to prevent data transmission by the device over one RAT link interfering with data transmission of the device over another RAT link. The expected data pattern information may be sent in messaging of a specific type with indexes determined based at least on a status of the data transfer mechanism and a connectivity status of the UE device.

    Abstract translation: 用户设备(UE)设备可以被配置为有效地管理设备上的多个无线电接入技术(RAT)的共存。 负责根据相应的相应RAT至少部分地管理无线通信的各个控制器可以彼此通信在其各自的通信链路上发生的期望的数据传输模式,包括特定应用的数据传输模式和数据传送机制的数据传输 模式。 RAT控制器可以根据与从每个RAT接收到的其他RAT相关联的期望的数据传输模式信息来管理它们各自的数据传输,以便防止设备在一个RAT链路上的数据传输干扰在另一个RAT链路上的设备的数据传输 。 可以在至少基于数据传输机制的状态确定的索引的特定类型的消息传送中发送期望的数据模式信息以及UE设备的连接状态。

    Self-contained slot and slot duration configuration in NR systems

    公开(公告)号:US11737063B2

    公开(公告)日:2023-08-22

    申请号:US17738724

    申请日:2022-05-06

    Applicant: Apple inc.

    CPC classification number: H04W72/0446 H04W76/10 H04W72/21 H04W84/042

    Abstract: Apparatuses, systems, and methods to dynamically indicate preference for self-contained slots and slot duration by a user equipment device (UE) in communication with a base station (e.g., a gNB) using a 5G NR radio access technology. A UE may determine to send an indication to a gNB indicating a preference for self-contained slots and slot duration for downlink and/or uplink communications utilizing one or more of the physical downlink control channel (PDCCH), the physical downlink shared channel (PDSCH), and/or acknowledgement messaging (ACK/NACK) for downlink communications, and utilizing one or more of the physical uplink control channel (PUCCH), the PDCCH, and/or the physical uplink shared channel (PUSCH) for uplink communications. The configuration of self-contained slots and slot duration for uplink and/or downlink may be based on one or more of average packet size, average packet rate, traffic type and UE processing capabilities.

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