公开(公告)号：US20230083550A1

公开(公告)日：2023-03-16

申请号：US17903420

申请日：2022-09-06

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Dirk Nickisch ,  Laxminarayana Pillutla ,  Mark G Forbes

IPC: G01S7/00 ,  G01S13/89

Abstract: An electronic device may include a set of antenna panels (APs) that transmit and receive signals within a set of signal beams. A proximity sensor such as a radar sensor may gather sensor data indicative of the position an external object. The device may select an AP and a beam that maximize wireless performance in communicating with a base station while also complying with the radio-frequency exposure (RFE). The device may select the AP and the beam based on the sensor data, per-panel and per-beam projected RFE values, antenna port RFE characteristics, per-panel and per-beam transmit power limits, per-beam transmit power backoffs, an RFE lookup table, regulatory RFE limits, and antenna performance metrics. The device may transmit an RFE report to the base station that identifies some or all of this information for use in updating scheduling for the device.

公开(公告)号：US20230110967A1

公开(公告)日：2023-04-13

申请号：US16978559

申请日：2019-09-06

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Yuqin Chen ,  Yushu Zhang ,  Sohrab Emami-Neyestanak ,  Michael Gordon ,  Mark G Forbes ,  Xiang Guan ,  Yakun Sun

IPC: H04W16/28 ,  H04W8/22

Abstract: Apparatuses, systems, and methods for a wireless device and a cellular base station to support common analog beam steering for band groups. The wireless device may provide an indication of analog beam steering capability of the wireless device to the cellular base station. For example, the wireless device may support a limited number of analog beams for each of one or more band groups. The cellular base station may select beam configuration information for the wireless device based at least in part on the indication of analog beam steering capability of the wireless device. This may include selecting a common beam for multiple component carriers for the wireless device based on the wireless device’s analog beam steering capability. The cellular base station may provide the beam configuration information to the wireless device.

公开(公告)号：US20240097628A1

公开(公告)日：2024-03-21

申请号：US18082412

申请日：2022-12-15

Applicant: Apple Inc.

Inventor： Nitesh Singhal ,  Mark G Forbes

IPC: H03F3/24 ,  H03F1/02 ,  H03F3/195 ,  H04B1/04

CPC classification number: H03F3/245 ,  H03F1/0222 ,  H03F3/195 ,  H04B1/0458 ,  H03F2200/451 ,  H03F2200/534 ,  H03F2200/537 ,  H03F2200/541 ,  H04B2001/0408

Abstract: An electronic device may include wireless circuitry with a processor, a transceiver, an antenna, and a front-end module coupled between the transceiver and the antenna. The front-end module may include one or more power amplifiers for amplifying a signal for transmission through the antenna. A power amplifier may include multiple amplifier stages. Current sharing or reuse may occur between two amplifier stages in the power amplifier via a current flow path between the two amplifier stages. A power supply voltage line may be connected to the current flow path and may provide the downstream amplifier stage with a supplemental supply current based on which the downstream amplifier stage can amplify a radio-frequency signal received from the upstream amplifier stage.