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    Power optimization for channel state reports in a wireless communication network
    11.
    发明授权
    Power optimization for channel state reports in a wireless communication network 有权

    公开(公告)号：US11184856B2

    公开(公告)日：2021-11-23

    申请号：US15745999

    申请日：2016-06-02

    Applicant: Apple Inc.

    Inventor： Sven Dortmund ,  Mathias Kurth ,  Matthias Hofmann ,  Sabine Roessel

    IPC: H04W52/02 ,  H04W52/28 ,  H04W64/00 ,  H04W76/28 ,  H04B7/06 ,  H04W24/10

    Abstract: This disclosure relates to a method for reducing power consumption of a first device for use in a wireless communication system. The first device receives a signal within a first reference sub-frame of a radio channel. The device determines whether to use the signal for obtaining channel state information to be reported to a second device within a reporting sub-frame, or whether to receive and use a second signal within a second reference sub-frame of the radio channel for obtaining channel state information to be reported to the second device within said predetermined later sub-frame. Based on this determination, the first device reports channel state information obtained based on the signal received within said first reference sub-frame or said second signal within said second reference sub-frame to the second device within said reporting sub-frame.

    Time Grid with Time Division Duplex Switching Intervals
    12.
    发明申请
    Time Grid with Time Division Duplex Switching Intervals 审中-公开

    公开(公告)号：US20200259561A1

    公开(公告)日：2020-08-13

    申请号：US16792147

    申请日：2020-02-14

    Applicant: Apple Inc.

    Inventor： Sabine Roessel ,  Holger Neuhaus ,  Yeong-Sun Hwang ,  Bertram Gunzelmann ,  Andreas Menkhoff ,  Elmar Wagner ,  Jong-Kae Fwu ,  Xiangyang Zhuang

    IPC: H04B7/26 ,  H04L27/26 ,  H04W72/04 ,  H04L5/14 ,  H04L5/00

    Abstract: Methods and apparatus for communicating in a wireless network including apparatus comprising transceiver circuitry to send and receive data in a plurality of time periods, defined by a time division duplex (TDD) time grid, to another entity, the plurality of time periods corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols and the transceiver circuitry being operable to switch from receive mode to transmit mode and/or from transmit mode to receive mode according to a flexible uplink and downlink allocation of the plurality of time periods; and baseband circuitry coupled to the transceiver circuitry to control the transceiver circuitry to switch during a switching interval embedded within a time period corresponding to an OFDM symbol of the plurality of OFDM symbols.

    OPTIMIZED DISTRIBUTED PRIVATE MATRIX MULTIPLICATION
    16.
    发明申请
    OPTIMIZED DISTRIBUTED PRIVATE MATRIX MULTIPLICATION 有权

    公开(公告)号：US20230079663A1

    公开(公告)日：2023-03-16

    申请号：US17942087

    申请日：2022-09-09

    Applicant: Apple Inc.

    Inventor： Bernhard Raaf ,  Sabine Roessel

    IPC: G06F17/16 ,  G06F16/22 ,  G06F21/62

    Abstract: Methods, systems, and computer programs for distributed processing of a matrix data structure is disclosed. In one aspect, the method can include obtaining a first matrix data structure (DS), segmenting the obtained matrix DS into a set of M different matrix DS portions, segmenting each of the different M matrix DS portions into respective sets of K matrix DS sub-portions, for each of the respective sets of K matrix DS sub-portions: generating an obfuscation matrix having the same dimensions as each of the K matrix DS sub-portions, and generating, by one or more computers, an obfuscated representation of each respective set of K matrix DS sub-portions that includes (i) the K matrix DS sub-portions and (ii) the obfuscation matrix, and transmitting data representing each (of the N) obfuscated representation of the (K) matrix DS sub-portions of the respective sets of M matrix DS portions to a different computer for processing.

    Fast Resource Allocation Adjustment and Media Access Control Awareness of Quality of Service Flows in Wireless Communications
    17.
    发明申请
    Fast Resource Allocation Adjustment and Media Access Control Awareness of Quality of Service Flows in Wireless Communications 有权

    公开(公告)号：US20220417972A1

    公开(公告)日：2022-12-29

    申请号：US17438214

    申请日：2021-06-25

    Applicant: Apple Inc.

    Inventor： Ralf Rossbach ,  Fangli Xu ,  Sarma V. Vangala ,  Haijing Hu ,  Weidong Yang ,  Lakshmi Iyer ,  Sabine Roessel

    IPC: H04W72/12

    Abstract: An application layer in a device, a service data adaptation protocol (SDAP) layer in the device, and/or a media access control (MAC) layer in the device may determine that wireless communication resources allocated to the device need to be adjusted. The determination may be in response to detecting that a quality of the wireless connection of the device has deteriorated, or it may be based on advance knowledge of information pertaining to an application layer payload in the device. In response to the determination the device may transmit, in a MAC Control Element (MAC CE) to a base station, a request for an adjustment of the allocated wireless communication resources. The adjustment may lead to a temporary boost of resources for a limited period of time or to a persistent update of the allocated wireless communication resources. To allow better scheduling of multiple QoS flows mapped to the same DRB and better selection of data when constructing a MAC Packet Data Unit (PDU), a mapping between QoS flows and LCHs may also be provided to the MAC layer.

    IoT GOES UNLICENSED
    18.
    发明申请
    IoT GOES UNLICENSED 有权

    公开(公告)号：US20210144560A1

    公开(公告)日：2021-05-13

    申请号：US16489475

    申请日：2017-03-28

    Applicant: Apple Inc.

    Inventor： Stefania Sesia ,  Jose A. Cesares Cano ,  Christian Drewes ,  Sabine Roessel

    IPC: H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04W4/70

    Abstract: Machines or networked devices such as internet of things (IoT) devices operate to generate an unlicensed narrowband (U-NB) IoT communication based on time domain multiple carrier aggregation operations with component carriers. These component carriers can comprise a component carrier that is anchored to a long term evolution (LTE) licensed band, or entirely comprise unlicensed carrier components that are unanchored to the LTE component carrier in a standalone configuration. Communication circuitry such as a radio frequency interface can transmit the U-NB IoT communication in standalone communications over a low power IoT network in an unlicensed band.

    Communication device and method for receiving signals in a frequency range
    19.
    发明授权
    Communication device and method for receiving signals in a frequency range 有权

    公开(公告)号：US11006435B2

    公开(公告)日：2021-05-11

    申请号：US16512461

    申请日：2019-07-16

    Applicant: Apple Inc.

    Inventor： Tianyan Pu ,  Chunhui Liu ,  Sabine Roessel ,  Christian Drewes

    IPC: H04W72/12 ,  H04W52/02 ,  H04W74/08 ,  H04W88/06 ,  H04W16/14 ,  H04W92/16

    Abstract: A communication terminal is described comprising a first transceiver configured for communication according to a first radio access technology and a second transceiver configured for communication according to a second radio access technology. The second transceiver is configured to determine whether a frequency range is occupied by a transmission according to the second radio access technology and to notify the first transceiver whether the frequency range is occupied by a transmission according to the second radio access technology. The first transceiver is configured to receive signals transmitted in the frequency range based on the notification from the second transceiver.

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