Radio frequency front-end circuitry amplifier gain calibration systems and methods

    公开(公告)号:US10541716B1

    公开(公告)日:2020-01-21

    申请号:US16146064

    申请日:2018-09-28

    Applicant: Apple Inc.

    Abstract: Systems and methods for improving operational efficiency of a radio frequency system, which includes an antenna amplifier unit that amplifies a data stream while the data stream is being wirelessly communicated and another antenna amplifier unit that amplifies another data stream while the other data stream is being wirelessly communicated. The radio frequency system includes a transceiver amplifier unit coupled to the antenna amplifier unit via an electrical connector, in which the transceiver amplifier unit amplifies the data stream while the data stream is being wirelessly communicated, another transceiver amplifier unit coupled to the other antenna amplifier unit via another electrical connector, in which the other transceiver amplifier unit amplifies the other data stream while the other data stream is being wirelessly communicated, and an electrical connector switching device coupled between antenna-sides of the electrical connector and the other electrical connector.

    Wireless electronic device with antenna switching circuitry
    15.
    发明申请
    Wireless electronic device with antenna switching circuitry 有权
    带天线切换电路的无线电子设备

    公开(公告)号:US20130148636A1

    公开(公告)日:2013-06-13

    申请号:US13631483

    申请日:2012-09-28

    Applicant: Apple Inc.

    Abstract: A wireless electronic device may include antennas formed at different locations on the device. The wireless electronic device may include transceivers that are used to wirelessly communicate in different frequency bands by transmitting and receiving radio-frequency signals in the frequency bands. The transceivers may include Wi-Fi® transceivers and cellular transceivers such as Long Term Evolution transceivers. The wireless electronic device may include antenna switching circuitry interposed between the transceivers and the antennas. The wireless electronic device may include control circuitry that controls the antenna switching circuitry to ensure that radio-frequency transmissions in adjacent frequency bands are routed to different antennas. By routing radio-frequency transmissions in adjacent frequency bands to different antennas, self-interference between communications in the adjacent frequency bands may be reduced. Self-interference may also be reduced by performing time division multiplexing to isolate radio-frequency signals that are transmitted in adjacent frequency bands.

    Abstract translation: 无线电子设备可以包括形成在设备上的不同位置的天线。 无线电子设备可以包括用于通过在频带中发射和接收射频信号而在不同频带中进行无线通信的收发器。 收发器可以包括Wi-Fi收发器和诸如长期演进收发器的蜂窝收发器。 无线电子设备可以包括插在收发器和天线之间的天线切换电路。 无线电子设备可以包括控制电路,其控制天线切换电路以确保相邻频带中的射频传输被路由到不同的天线。 通过将相邻频带中的射频传输路由到不同的天线,可以减少相邻频带中的通信之间的自干扰。 还可以通过执行时分多路复用来隔离在相邻频带中传输的射频信号来减少自干扰。

    Device category in 3GPP communications

    公开(公告)号:US11317324B2

    公开(公告)日:2022-04-26

    申请号:US16590866

    申请日:2019-10-02

    Applicant: Apple Inc.

    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/or additional optimization requirements. The UE device may communicate with a cellular base station according to a first mode of operation associated with the new device category, and may switch to communicating with the cellular base station according to a second mode of operation associated with a second (pre-existing) device category in response to the link budget requirements exceeding a specified value and the quality of service requirements not being sensitive. The UE device may also switch to communicating with the cellular base station according to a third mode of operation associated with a third (pre-existing) device type in response to the link budget requirement not exceeding the specified value, or the QoS requirements being sensitive and a downlink throughput requirement exceeding a specified throughput value.

    RF radiohead with optical interconnection to baseband processor

    公开(公告)号:US11310869B2

    公开(公告)日:2022-04-19

    申请号:US15716730

    申请日:2017-09-27

    Applicant: Apple Inc.

    Abstract: A portable electronic device includes a baseband integrated circuit configured to generate communication data and control signals. The portable electronic device also includes an optical path configured to be coupled to the baseband integrated circuit to transmit the data signals from the baseband integrated circuit. The portable electronic device additionally includes a radiohead configured to be coupled to the optical path to receive the data signals transmitted along the optical path from the baseband integrated circuit.

    Discovery Procedure for Off Grid Radio Service

    公开(公告)号:US20200245119A1

    公开(公告)日:2020-07-30

    申请号:US16850164

    申请日:2020-04-16

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for performing discovery in an off grid radio system. A wireless device may obtain synchronization with a peer-to-peer communication group. The wireless device may determine the location of the wireless device within the peer-to-peer communication group based at least in part on signal strength of a synchronization signal used to obtain the synchronization. The wireless device may perform peer-to-peer discovery in the peer-to-peer communication group, such that time and frequency resources used by the wireless device to perform the peer-to-peer discovery are determined based at least in part on the location of the first wireless device within the peer-to-peer communication group.

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