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    5G/LTE Dual Connectivity
    32.
    发明申请
    5G/LTE Dual Connectivity 审中-公开

    公开(公告)号：US20180227960A1

    公开(公告)日：2018-08-09

    申请号：US15828576

    申请日：2017-12-01

    Applicant: Apple Inc.

    Inventor： Farouk Belghoul ,  Christian W. Mucke ,  Lydi Smaini

    IPC: H04W76/02 ,  H04W36/00 ,  H04W88/06 ,  H04W72/12 ,  H04L1/18

    Abstract: Apparatuses, systems, and methods to perform attachment of a wireless device to substantially concurrent connections with a next generation network node and a legacy network node. The wireless device may be configured to transmit a request to attach to a first network node operating according to the first RAT and transmit an indication that the wireless device is capable of maintaining substantially concurrent connections with the first network node and a second network node that operates according to the second RAT. The wireless device may also be configured transmit a request to attach to the second network node. The request may include an indication that the wireless device is capable of maintaining substantially concurrent connections with the first and second network nodes. Further, the wireless device may be configured to receive an indication that dual connectivity with the first and second network nodes has been established.

    Robust Downlink Control Information with Flexible Resource Assignments
    33.
    发明申请
    Robust Downlink Control Information with Flexible Resource Assignments 审中-公开

    公开(公告)号：US20180049201A1

    公开(公告)日：2018-02-15

    申请号：US15673683

    申请日：2017-08-10

    Applicant: Apple Inc.

    Inventor： Awais M. Hussain ,  Farouk Belghoul ,  Lydi Smaini

    IPC: H04W72/04 ,  H04L5/00

    CPC classification number: H04W72/0453 ,  H04L1/0001 ,  H04L1/0072 ,  H04L1/08 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/042

    Abstract: This disclosure relates to techniques for providing robust downlink control information with flexible resource assignments for wireless devices that operate in a restricted bandwidth compared to the system bandwidth. A base station may determine a resource assignment for a wireless device. The base station may transmit downlink control information to the wireless device. The downlink control information may include an indication of a resource assignment for the wireless device. The indication of the resource assignment may include an indication of a first narrowband associated with the resource assignment, and an indication of whether one or more additional narrowbands are associated with the resource assignment. The base station and the wireless device may communicate data according to the resource assignment.

    Mechanisms for LAA/LTE-U Detection to Mitigate Impact on Wi-Fi Performance
    37.
    发明申请
    Mechanisms for LAA/LTE-U Detection to Mitigate Impact on Wi-Fi Performance 审中-公开

    公开(公告)号：US20170251372A1

    公开(公告)日：2017-08-31

    申请号：US15430664

    申请日：2017-02-13

    Applicant: Apple Inc.

    Inventor： Farouk Belghoul ,  Lydi Smaini ,  Tarik Tabet ,  Syed Aon Mujtaba

    IPC: H04W16/14 ,  H04W48/16 ,  H04W24/02 ,  H04W24/08

    Abstract: A wireless communication device may conduct first wireless communications over a first frequency band according to a first radio access technology (RAT), and may detect second wireless communications conducted over the first frequency band according to a second RAT while the wireless communication device is conducting the first wireless communications. The wireless communication device may then adjust characteristics and/or parameters associated with the first wireless communications based on the detected second wireless communications. In a specific example, a wireless communication device conducting Wi-Fi communications in the 5 GHz band may detect cellular communications (e.g. LAA/LTE-U communications) also conducted in the 5 GHz band while the wireless communication device is conducting the Wi Fi communications. The wireless communication device may then adjust characteristics and/or parameters associated with its Wi-Fi communications based on the detected signals/frequencies of the cellular (LAA/LTE-U) communications.

    High Efficiency Transmitter Architectures for a Localized Single-Carrier Frequency Division Multiple Access Transceiver
    38.
    发明申请
    High Efficiency Transmitter Architectures for a Localized Single-Carrier Frequency Division Multiple Access Transceiver 有权
    用于本地化单载波频分多址收发器的高效率发射机架构

    公开(公告)号：US20160218900A1

    公开(公告)日：2016-07-28

    申请号：US14990711

    申请日：2016-01-07

    Applicant: Apple Inc.

    Inventor： Lydi Smaini ,  Konstantinos Sarrigeorgidis ,  Tarik Tabet ,  Syed Aon Mujtaba

    IPC: H04L27/12 ,  H04B1/04 ,  H04W72/14 ,  H04W72/04 ,  H04W72/12

    CPC classification number: H04B1/04 ,  H04B2001/0491 ,  H04L5/0044 ,  H04L27/2636 ,  H04L27/361 ,  H04L27/362 ,  H04W88/02

    Abstract: This disclosure relates to a system and method for generating single-carrier frequency division multiple access (SC-FDMA) transmissions using a high efficiency architecture. According to some embodiments, frequency resources allocated for a transmission may be determined. The allocated frequency resources may have a bandwidth less than a channel bandwidth of a frequency channel of the transmission, and may be centered around a particular frequency. The frequency may be offset from the center frequency of the channel. A baseband signal located around DC corresponding to the channel center frequency may be generated. The baseband signal may be up-converted to an RF signal using a local oscillator tuned to the frequency around which the allocated frequency resources are centered. The RF signal may be transmitted.

    Abstract translation: 本公开涉及一种使用高效率架构来生成单载波频分多址（SC-FDMA）传输的系统和方法。 根据一些实施例，可以确定为发送分配的频率资源。 分配的频率资源可以具有小于该传输的频道的信道带宽的带宽，并且可以围绕特定频率居中。 频率可能偏离通道的中心频率。 可以产生位于与通道中心频率对应的DC周围的基带信号。 可以使用调谐到所分配的频率资源所居中的频率的本地振荡器将基带信号上变频为RF信号。 RF信号可以被发送。

    Receiver Architecture with Analog Complex Filter for OFDMA Reception
    39.
    发明申请
    Receiver Architecture with Analog Complex Filter for OFDMA Reception 有权
    用于OFDMA接收的模拟复合滤波器的接收机架构

    公开(公告)号：US20160218758A1

    公开(公告)日：2016-07-28

    申请号：US14996331

    申请日：2016-01-15

    Applicant: Apple Inc.

    Inventor： Lydi Smaini ,  Tarik Tabet ,  Konstantinos Sarrigeorgidis ,  Syed Aon Mujtaba

    IPC: H04B1/10 ,  H04W72/04 ,  H04L5/00

    CPC classification number: H04B1/1018 ,  H04L5/005 ,  H04L5/0053

    Abstract: Methods and devices are provided for processing a received communication signal by a UE using an analog complex filter and using a single analog-to-digital converter (ADC). A control channel of the communication signal may be decoded to determine the frequency range in which a payload channel is located. The UE may then demodulate only the frequency range containing the payload channel. A complex representation of the received payload channel may be provided to the analog complex filter, with the payload channel shifted to a non-zero frequency IF. The analog complex filter may attenuate any portion of the complex representation that falls near—IF. The UE may then convert only one component path of the filtered complex representation to a digital signal. A complex representation of the digital signal may then be generated, with the payload channel shifted to DC.

    Abstract translation: 提供了用于使用模拟复合滤波器和使用单个模数转换器（ADC）来处理UE接收的通信信号的方法和装置。 可以对通信信号的控制信道进行解码，以确定有效载荷信道所在的频率范围。 然后，UE可以仅解调包含有效载荷信道的频率范围。 所接收到的有效载荷信道的复杂表示可以被提供给模拟复合滤波器，其中有效载荷信道被移动到非零频率IF。 模拟复合滤波器可以衰减接近IF的复数表示的任何部分。 然后，UE可以将仅滤波的复数表示的一个分量路径转换为数字信号。 然后可以产生数字信号的复数表示，其中有效载荷信道移动到DC。

    Control channel design for category-A devices
    40.
    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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