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    Decoding of PCFICH in LTE for Power Savings and Range Improvement
    61.
    发明申请
    Decoding of PCFICH in LTE for Power Savings and Range Improvement 审中-公开

    公开(公告)号：US20180324782A1

    公开(公告)日：2018-11-08

    申请号：US16038528

    申请日：2018-07-18

    Applicant: Apple Inc.

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

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

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

    Abstract: A mobile device (UE) may decode the Physical Control Format Indicator Channel (PCFICH) blindly, which may include obtaining resource elements (REs) that are reserved for the 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 UE does not need to decode the PCFICH specifically. In some cases, the UE may indicate to the network that the UE is a constrained device, and the network may transmit control information according to a value intended for use by constrained devices. The UE may receive the transmitted value, and instead of decoding the PCFICH it may decode the control information based at least on the received value.

    Transmission of uplink control information for link-budget-limited devices
    62.
    发明授权
    Transmission of uplink control information for link-budget-limited devices 有权

    公开(公告)号：US10034302B2

    公开(公告)日：2018-07-24

    申请号：US14795750

    申请日：2015-07-09

    Applicant: Apple Inc.

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

    IPC: H04W74/00 ,  H04B7/06 ,  H04L1/18 ,  H04W74/08 ,  H04W72/12 ,  H04W72/14 ,  H04L1/16

    Abstract: Mechanisms are disclosed for improved transmission of uplink control information by a user equipment (UE) that is link budget limited. In one embodiment, the UE transmits a message to the base station indicating that the UE is link budget limited. In response to the message, the base station sends an uplink grant to the UE, enabling the UE to transmit uplink control information on the physical uplink shared channel (PUSCH) instead of on the Physical Uplink Control Channel (PUCCH). In another embodiment, the base station sends an uplink grant to a link-budget-limited UE each time downlink traffic is transmitted to the UE, enabling the UE to send ACK/NACK feedback on the PUSCH instead of the PUCCH. In another embodiment, the UE transmits a scheduling request (SR) to the base station as part of a random access procedure, enabling the SR to be transmitted on the PUSCH instead of the PUCCH.

    Adaptive Throughput and Bandwidth for Enhanced Category of Mobile Devices
    64.
    发明申请
    Adaptive Throughput and Bandwidth for Enhanced Category of Mobile Devices 审中-公开

    公开(公告)号：US20170359829A1

    公开(公告)日：2017-12-14

    申请号：US15496388

    申请日：2017-04-25

    Applicant: Apple Inc.

    Inventor： Tarik Tabet ,  Samy Khay-Ibbat ,  Krisztian Kiss ,  Rafael L. Rivera-Barreto ,  Cesar Perez ,  Moustafa M. Elsayed ,  Prashant H. Vashi

    IPC: H04W72/08 ,  H04W72/04

    CPC classification number: H04W72/087 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/048

    Abstract: A user equipment (UE) device 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 new device category may identify the UE device as a wearable device. According to some embodiments, LTE category M may be extended to support non-MTC operations performed by wearable devices. For example, the new device category may support UE mobility and may disallow access barring. Additional extensions may be implemented in response to an indication by the UE that the UE is implementing a specific application, such as VoLTE or a near real-time application, such as audio streaming. In some scenarios, the indication may include the UE indicating a specific QCI value. In some scenarios, the indication may include the UE attaching to a specific APN.

    Polar Loop Modulation Techniques for Wireless Communication
    66.
    发明申请
    Polar Loop Modulation Techniques for Wireless Communication 审中-公开

    公开(公告)号：US20170195113A1

    公开(公告)日：2017-07-06

    申请号：US15398114

    申请日：2017-01-04

    Applicant: Apple Inc.

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

    IPC: H04L7/033 ,  H04W72/04

    CPC classification number: H03C3/0916 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0966 ,  H03C5/00 ,  H04L27/00

    Abstract: This disclosure relates to an apparatus, system, and method for generating uplink transmissions using a polar architecture including a phase locked loop with potential for two point injection. According to some embodiments, frequency resources allocated for a transmission may be determined. A cartesian baseband signal may be generated for the uplink transmission. The cartesian baseband signal may be converted to a polar baseband signal, including a baseband phase signal and an amplitude signal. Modulation parameters, potentially including whether to use one point injection or two point injection with a phase locked loop, may be determined. The baseband phase signal may be upconverted to an RF phase signal according to the determined modulation parameters. The RF phase signal may be amplified according to the amplitude signal to produce an RF signal. The RF signal may be transmitted.

    Non-PDCCH Signaling of SIB Resource Assignment
    67.
    发明申请
    Non-PDCCH Signaling of SIB Resource Assignment 审中-公开
    SIB资源分配的非PDCCH信令

    公开(公告)号：US20170055246A1

    公开(公告)日：2017-02-23

    申请号：US15175102

    申请日：2016-06-07

    Applicant: Apple Inc.

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

    IPC: H04W72/04

    CPC classification number: H04W72/042 ,  H04W48/12

    Abstract: This disclosure relates to providing system information for cell access to link budget limited devices. According to some embodiments, a base station may transmit an announcement information block (AIB) in a downlink shared data channel (e.g., PDSCH), wherein the AIB contains information useable by a UE in determining the location of system information in the downlink shared data channel. The UE can thus determine the location of and decode system information without having to decode a downlink control channel (e.g., PDCCH). This may be important for certain classes of devices, such as link budget limited devices, which have issues in decoding the downlink control channel. Improved paging scheduling techniques are also disclosed which more efficiently use PDCCH paging resources.

    Abstract translation: 本公开涉及提供用于小区接入链路预算受限设备的系统信息。 根据一些实施例，基站可以在下行链路共享数据信道（例如，PDSCH）中发送通告信息块（AIB），其中，AIB包含UE可用于确定下行链路共享数据中的系统信息的位置的信息 渠道。 因此，UE可以确定系统信息的位置并对其进行解码，而无需解码下行链路控制信道（例如，PDCCH）。 这对于在解码下行链路控制信道方面存在问题的某些类型的设备（例如链路预算受限设备）可能是重要的。 还公开了更有效地使用PDCCH寻呼资源的改进的寻呼调度技术。

    Transmission of Uplink Control Information for Link-Budget-Limited Devices
    68.
    发明申请
    Transmission of Uplink Control Information for Link-Budget-Limited Devices 审中-公开
    Link-Budget-Limited设备的上行链路控制信息传输

    公开(公告)号：US20160014810A1

    公开(公告)日：2016-01-14

    申请号：US14795750

    申请日：2015-07-09

    Applicant: Apple Inc.

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

    IPC: H04W74/00 ,  H04L1/18 ,  H04B7/06 ,  H04W74/08

    CPC classification number: H04W74/004 ,  H04B7/0626 ,  H04L1/1671 ,  H04L1/18 ,  H04L1/1896 ,  H04W72/1278 ,  H04W72/14 ,  H04W74/0833

    Abstract: Mechanisms are disclosed for improved transmission of uplink control information by a user equipment (UE) that is link budget limited. In one embodiment, the UE transmits a message to the base station indicating that the UE is link budget limited. In response to the message, the base station sends an uplink grant to the UE, enabling the UE to transmit uplink control information on the physical uplink shared channel (PUSCH) instead of on the Physical Uplink Control Channel (PUCCH). In another embodiment, the base station sends an uplink grant to a link-budget-limited UE each time downlink traffic is transmitted to the UE, enabling the UE to send ACK/NACK feedback on the PUSCH instead of the PUCCH. In another embodiment, the UE transmits a scheduling request (SR) to the base station as part of a random access procedure, enabling the SR to be transmitted on the PUSCH instead of the PUCCH.

    Abstract translation: 公开了用于通过链路预算限制的用户设备（UE）改进上行链路控制信息的传输的机制。 在一个实施例中，UE向基站发送指示UE是链路预算限制的消息。 响应于该消息，基站向UE发送上行链路授权，使得UE能够在物理上行链路共享信道（PUSCH）上而不是在物理上行链路控制信道（PUCCH）上发送上行链路控制信息。 在另一个实施例中，每当下行链路业务被发送到UE时，基站向链路限制的UE发送上行链路许可，使得UE能够在PUSCH上发送ACK / NACK反馈而不是PUCCH。 在另一个实施例中，UE作为随机接入过程的一部分向基站发送调度请求（SR），使得能够在PUSCH而不是PUCCH上发送SR。

    Enhanced Paging Schemes and Connected-State DRX
    69.
    发明申请
    Enhanced Paging Schemes and Connected-State DRX 有权
    增强型寻呼方案和连接状态DRX

    公开(公告)号：US20160014716A1

    公开(公告)日：2016-01-14

    申请号：US14795733

    申请日：2015-07-09

    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.

    Abstract translation: 对于作为链路预算限制（LBL）的寻呼用户设备，基站发送由所述设备使用的专用ID，以识别寻呼帧和/或寻呼时机。 当发送用于LBL设备的寻呼消息时，基站可以使用：（a）更大的聚合和更大的CFI（比常规允许的）和（b）用于寻呼有效载荷的更多数量的资源块（比常规允许的）。 如果LBL设备的寻呼消息使寻呼帧容量饱和，则基站可以分配多个特殊ID。 如果用于LBL设备的寻呼消息和/或其他数据传输饱和网络容量，LBL设备的至少一个子集可以被引导进入连接状态不连续接收（DRX）模式，其中那些设备将保持连接模式并且周期性地 检查资源分配。 分页有效载荷信息可以在连续的子帧中重复发送，以支持软组合。

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