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    Low power LTE (LP-LTE) paging monitoring
    12.
    发明授权
    Low power LTE (LP-LTE) paging monitoring 有权

    公开(公告)号：US10341952B2

    公开(公告)日：2019-07-02

    申请号：US15274970

    申请日：2016-09-23

    Applicant: Apple Inc.

    Inventor： Moustafa M. Elsayed ,  Tarik Tabet

    IPC: H04W52/02 ,  H04W76/28 ,  H04W68/00

    Abstract: A wireless communication device (UE) may include a paging subsystem that performs paging-monitoring as part of wireless communications of the wireless communication device. The UE may place wireless communication system resources not required during paging-monitoring into either a low-power state or a power-down state, and those system resources may remain in one of those respective states during paging-monitoring. The wireless communication system resources not required during the paging-monitoring may include at least a wireless communications protocol stack used during the wireless communications of the UE, and at least system resources used for performing uplink related tasks independently of wireless communication system resources used for performing downlink related tasks. The paging subsystem may include at least a control manager subsystem capable of decoding a physical downlink control channel, a downlink control subsystem capable of performing tasks related to a physical downlink data channel, and a message parser for parsing paging messages.

    Enhanced Paging Schemes and Connected-State DRX
    13.
    发明申请
    Enhanced Paging Schemes and Connected-State DRX 审中-公开

    公开(公告)号：US20180124739A1

    公开(公告)日：2018-05-03

    申请号：US15860410

    申请日：2018-01-02

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Syed Aon Mujtaba ,  Moustafa M. Elsayed

    IPC: H04W68/00 ,  H04W72/04

    CPC classification number: H04W68/005 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/048 ,  H04W76/28

    Abstract: For paging user devices that are link budget limited (LBL), a base station transmits a special ID that is used by said devices to identify a paging frame and/or a paging occasion. When transmitting a paging message for an LBL device, the base station may use: (a) larger aggregation and larger CFI (than conventionally allowed) and (b) a larger number of resource blocks (than conventionally allowed) for paging payload. If paging messages for LBL devices saturate the paging frame capacity, the base station may allocate a plurality of special IDs. If paging messages for LBL devices and/or other data transfers saturate network capacity, at least a subset of the LBL devices may be directed to enter a connected-state discontinuous reception (DRX) mode, wherein those devices will remain in connected mode and periodically check for resource allocations. Paging payload information may be repeatedly transmitted in successive subframes, to support soft combining.

    Apparatus, System, and Method for Adaptive Sleep Schedule for Control Signal Decoding
    17.
    发明申请
    Apparatus, System, and Method for Adaptive Sleep Schedule for Control Signal Decoding 有权
    用于控制信号解码的自适应睡眠计划的装置，系统和方法

    公开(公告)号：US20160219519A1

    公开(公告)日：2016-07-28

    申请号：US14987805

    申请日：2016-01-05

    Applicant: Apple Inc.

    Inventor： Moustafa M. Elsayed ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis

    IPC: H04W52/02 ,  H04W72/04

    CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W52/0229 ,  H04W52/0274 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/24 ,  Y02D70/26

    Abstract: This disclosure relates to implementing an adaptive sleep schedule for PDCCH decoding. In some embodiments, prior to receiving PDCCH signaling, a user equipment device may schedule wireless communication circuitry to prepare for and decode the PDCCH signaling, which may include dynamically preparing a first interrupt for the wireless communication circuitry to perform the preparing for and the decoding. In response to the first interrupt, the UE may prepare for and decode the PDCCH signaling using the wireless communication circuitry. The UE may analyze the result of the decoding, which may include determining that the PDCCH signaling does not comprise information for the UE. In response to determining that the PDCCH signaling does not comprise information for the UE, the UE may schedule the wireless communication circuitry to shut down, which may include dynamically preparing a second interrupt to shut down the wireless communication circuitry.

    Abstract translation: 本公开涉及实现用于PDCCH解码的自适应睡眠调度。 在一些实施例中，在接收PDCCH信令之前，用户设备设备可以调度无线通信电路以准备和解码PDCCH信令，其可以包括为无线通信电路动态准备第一个中断以执行准备和解码。 响应于第一中断，UE可以使用无线通信电路准备和解码PDCCH信令。 UE可以分析解码的结果，其可以包括确定PDCCH信令不包括用于UE的信息。 响应于确定PDCCH信令不包括用于UE的信息，UE可以安排无线通信电路关闭，其可以包括动态地准备第二中断以关闭无线通信电路。

    Apparatus, System, and Method for PDCCH Preparation in Radio Frequency Circuitry
    18.
    发明申请
    Apparatus, System, and Method for PDCCH Preparation in Radio Frequency Circuitry 有权
    射频电路中PDCCH准备的装置，系统及方法

    公开(公告)号：US20160127990A1

    公开(公告)日：2016-05-05

    申请号：US14531646

    申请日：2014-11-03

    Applicant: Apple Inc.

    Inventor： Moustafa M. Elsayed ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis

    IPC: H04W52/02 ,  H04W72/04

    CPC classification number: H04W72/042 ,  H04W52/0209 ,  H04W52/0229 ,  H04W52/52 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/26

    Abstract: An apparatus, system, and method for performing PDCCH preparation in RF circuitry are described. In one embodiment, power may be provided to a crystal oscillator to exit a first sleep state. One or more clocking signals may be provided to RF circuitry based on output from the crystal oscillator. Calibration and state restoration of the RF circuitry may be performed independent of baseband circuitry. A plurality of algorithms to prepare for receiving data form a wireless communication network may be performed independent of the baseband circuitry. After initiating the plurality of algorithms, state restoration of the baseband circuitry may be performed. Data may be received from a wireless communication network using the RF circuitry. The data may be processed using the baseband circuitry. State retention for the RF circuitry and the baseband circuitry may be performed. Finally, the crystal oscillator may be powered down to enter a second sleep state.

    Abstract translation: 描述了用于在RF电路中执行PDCCH准备的装置，系统和方法。 在一个实施例中，可以向晶体振荡器提供功率以退出第一睡眠状态。 可以基于晶体振荡器的输出向RF电路提供一个或多个时钟信号。 可以独立于基带电路来执行RF电路的校准和状态恢复。 可以独立于基带电路来执行用于准备从无线通信网络接收数据的多种算法。 在启动多个算法之后，可以执行基带电路的状态恢复。 可以使用RF电路从无线通信网络接收数据。 可以使用基带电路来处理数据。 可以执行RF电路和基带电路的状态保持。 最后，晶体振荡器可以掉电进入第二个睡眠状态。

    Decoding of PCFICH in LTE for Power Saving and Range Improvement
    19.
    发明申请
    Decoding of PCFICH in LTE for Power Saving and Range Improvement 审中-公开
    PCFICH在LTE中的解码功率节省和范围改进

    公开(公告)号：US20150365930A1

    公开(公告)日：2015-12-17

    申请号：US14726771

    申请日：2015-06-01

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Konstantinos Sarrigeorgidis ,  Moustafa M. Elsayed

    IPC: H04W72/04 ,  H04B17/336 ,  H04L5/00

    CPC classification number: H04W72/0406 ,  H04B17/336 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/0094

    Abstract: An apparatus, system, and method for reliable decoding of control information during LTE wireless transmissions is described. A mobile device may decode the PCFICH blindly, which may include obtaining resource elements (REs) that are reserved for Physical Downlink Control Channel (PDCCH), based on a largest value of a control format indicator (CFI), finding a total number of control channel elements (CCEs) according to the obtained REs, numbering the CCEs, and decoding the PDCCH for the largest value of the CFI over the numbered CCEs. Accordingly, the mobile device does not need to decode the PCFICH specifically. The mobile device may indicate to the NW that the mobile device is a constrained device, and the NW may responsively transmit control information using a reserved control format indication value corresponding to the UE being indicated as a constrained device. The mobile device may then not need to decode the PCFICH, and decode the PDCCH based on the PDCCH occupying a first four OFDM symbols.

    Abstract translation: 描述了用于LTE无线传输期间控制信息的可靠解码的装置，系统和方法。 移动设备可以盲目地解码PCFICH，其可以包括基于控制格式指示符（CFI）的最大值获得为物理下行链路控制信道（PDCCH）预留的资源元素（RE），找到总控制数量 信道单元（CCE），对CCE进行编号，并对编号的CCE中的CFI的最大值进行解码。 因此，移动设备不需要专门解码PCFICH。 移动设备可以向NW指示移动设备是受限设备，并且NW可以使用对应于被指示为受约束设备的UE的预留控制格式指示值来响应地发送控制信息。 然后，移动设备可能不需要对PCFICH进行解码，并且基于占用前四个OFDM符号的PDCCH来解码PDCCH。

    Control channel design for category-A devices
    20.
    发明授权
    Control channel design for category-A devices 有权

    公开(公告)号：US12244413B2

    公开(公告)日：2025-03-04

    申请号：US17686050

    申请日：2022-03-03

    Applicant: Apple Inc.

    Inventor： Awais M. Hussain ,  Tarik Tabet ,  Lydi Smaini ,  Moustafa M. Elsayed

    IPC: H04L1/00 ,  H04L5/00

    Abstract: A user equipment device (UE) may communicate according to a new device category satisfying specified QoS (quality of service) requirements while also satisfying specified link budget requirements, and additional optimization requirements. The UE may use physical channels and procedures (e.g. it may receive and decode control channels) in a manner compatible with and not infringing on the operation of other UEs operating in the same network, while allowing the network more flexibility to assign resources. Specifically, resources for EPDCCH on UE-specific SS and EPDCCH on common SS may be shared. That is, the resources for two search spaces may be overlaid partially or in full, giving the network more flexibility in allocating resources. Furthermore the DCI formats for MPDCCH may be extended to devices operating according to the new device category, which enables the coverage enhancement of MTC for these devices.

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