公开(公告)号：US20240097710A1

公开(公告)日：2024-03-21

申请号：US18085133

申请日：2022-12-20

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Wanlu Sun

IPC: H04B1/00 ,  H04L69/08

CPC classification number: H04B1/005 ,  H04L69/08 ,  H04W88/06

Abstract: Systems and methods described herein may introduce an intermediary device between radio access networks using a first spectrum and user equipment using a second spectrum. The intermediary device may process communication signals from either the first spectrum or the second spectrum into a format usable by the other of the first spectrum or the second spectrum. The intermediary device may be referred to as a multi-radio access technology (multi-RAT) translator.

公开(公告)号：US20240080084A1

公开(公告)日：2024-03-07

申请号：US18456388

申请日：2023-08-25

Applicant: Apple Inc.

Inventor： Wanlu Sun ,  Sharad Sambhwani ,  Sung-En Chiu

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/06966 ,  H04B7/0456

Abstract: The present application relates to devices and components including apparatus, systems, and methods for beam management using a hybrid beamforming architecture.

公开(公告)号：US20230412202A1

公开(公告)日：2023-12-21

申请号：US17841573

申请日：2022-06-15

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Apurva Pande ,  Dirk Nickisch ,  Pallavi Suresh Mastiholimath ,  Prashanthan Pathamadai Krishnan ,  Sairamm Prabakar ,  Sanjeevi Balasubramanian ,  Sriram Krishnan

IPC: H04B1/10

CPC classification number: H04B1/1027

Abstract: Embodiments herein provide various apparatuses and techniques to for enhanced handling of receiver desensitization, “desense,” in electronic devices that is caused by an operation of the device. In an embodiment, sensitivity of a receiver affected by desense may be determined based on receiver sensitivity without desense and a desense offset value. Desense mitigation measures may be applied based on the strength of the signal received by the receiver being less than the receiver sensitivity affected by desense. The desense mitigation measures may include deactivating the device operation that causes desense, enabling the device operation that causes desense only during certain times, and enabling antenna diversity. In some embodiments, various power and signal-to-noise ratio thresholds may be used for conditional application of different desense mitigation measures. For example, to enable receiver diversity on the device, strength of the signal needs to be below one power threshold and above another power threshold.

公开(公告)号：US11792747B2

公开(公告)日：2023-10-17

申请号：US17866322

申请日：2022-07-15

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Digvijay A. Jadhav ,  Dirk Nickisch ,  Gil Katzir ,  Laxminarayana Pillutla

IPC: H04W52/36

CPC classification number: H04W52/367

Abstract: An electronic device may include a radio that generates a first maximum power based on a radio-frequency exposure (RFE) budget. The radio may transmit signals subject to the first maximum power during a subperiod of an averaging period and may generate an instantaneous RFE metric value based on an antenna coefficient and the conducted transmit power of the antenna during the subperiod. The radio may generate a consumed RFE value by averaging the instantaneous RFE metric value with previous instantaneous RFE values from the averaging period, may generate a remaining budget based on the consumed RFE value, may generate a second maximum transmit power based on the remaining budget, and may transmit signals during a subsequent subperiod subject to the second maximum power. Time-averaging the RFE metric may serve to optimize performance of the radio relative to scenarios where the radio performs time-averaging of conducted TX power.

公开(公告)号：US20230142210A1

公开(公告)日：2023-05-11

申请号：US17950849

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Parvathanathan Subrahmanya ,  Sharad Sambhwani ,  Dirk Nickisch ,  Madhukar K Shanbhag ,  Rohit U Nabar ,  Sanjeevi Balasubramanian ,  Shiva Krishna Narra ,  Sriram Subramanian ,  Tarik Tabet ,  Vishwanth Kamala Govindaraju ,  Yakun Sun

IPC: H04W48/12 ,  H04L5/00

CPC classification number: H04W48/12 ,  H04L5/0048

Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).

公开(公告)号：US20230132977A1

公开(公告)日：2023-05-04

申请号：US17747525

申请日：2022-05-18

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Huaning Niu ,  Xiang Chen ,  Yang Tang ,  Laxminarayana Pillutla ,  Dirk Nickisch

IPC: H04B1/3827 ,  H04W52/38

Abstract: A first transmission power level based on a radio frequency exposure limit and a second transmission power level based on the first transmission power level and a probability of detection of a body by a body proximity sensor are determined, where it is ensured that an average usage of the first and second transmission power levels over time does not exceed the transmission power limit, determined based on radio frequency exposure limits. A transmission power gain is determined based on a difference between the first and second transmission power level based on the probability of detection, and a false alarm rate of the body by the body proximity sensor. The transmission power gain may be used as a performance indicator to select from multiple first and second transmission power gains. First and second transmission power gains corresponding to the selected transmission power gain may be stored and applied during transmission.

公开(公告)号：US20230030498A1

公开(公告)日：2023-02-02

申请号：US17377229

申请日：2021-07-15

Applicant: APPLE INC.

Inventor： Dirk Nickisch ,  Sharad Sambhwani

IPC: H04W76/10 ,  H04W24/08

Abstract: Performing autonomous measurements at a user equipment (UE) may include encoding a radio resource control (RRC) connection request for transmission to a first base station having a first base station type. An RRC connection setup communication received from the first base station may be decoded. Measurements associated with a set of candidate carriers of a second base station type may be autonomously performed while in an RRC connected state. Autonomously performing the measurements may including deriving the set of candidate carriers to be measured. Results from the performed measurements may be stored.

公开(公告)号：US20220408378A1

公开(公告)日：2022-12-22

申请号：US17866322

申请日：2022-07-15

Applicant: Apple Inc.

Inventor： Sharad Sambhwani ,  Digvijay A. Jadhav ,  Dirk Nickisch ,  Gil Katzir ,  Laxminarayana Pillutla

IPC: H04W52/36

Abstract: An electronic device may include a radio that generates a first maximum power based on a radio-frequency exposure (RFE) budget. The radio may transmit signals subject to the first maximum power during a subperiod of an averaging period and may generate an instantaneous RFE metric value based on an antenna coefficient and the conducted transmit power of the antenna during the subperiod. The radio may generate a consumed RFE value by averaging the instantaneous RFE metric value with previous instantaneous RFE values from the averaging period, may generate a remaining budget based on the consumed RFE value, may generate a second maximum transmit power based on the remaining budget, and may transmit signals during a subsequent subperiod subject to the second maximum power. Time-averaging the RFE metric may serve to optimize performance of the radio relative to scenarios where the radio performs time-averaging of conducted TX power.

公开(公告)号：US20220353762A1

公开(公告)日：2022-11-03

申请号：US17732972

申请日：2022-04-29

Applicant: Apple Inc.

Inventor： Naveen Kumar R. Palle VENKATA ,  Christian Hofmann ,  Gerhard Kilian Eichiner ,  Hong He ,  Jie Cui ,  Leilei Song ,  Sharad Sambhwani ,  Wei Zheng ,  Yang Tang

IPC: H04W36/00

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing techniques for support mobility in a wireless network for user equipments (UEs) with varying capabilities. A UE can receive a first system information from a serving base station, where the first system information includes a UE capability condition associated with a neighbor base station, and determine whether a UE capability meets the UE capability condition associated with the neighbor base station. When the UE capability condition is met, the UE can determine whether a first measurement of a first reference signal received from the serving base station and a second measurement of a second reference signal received from the neighbor base station satisfy a threshold condition. When the threshold condition is met, the UE can obtain a second system information from the neighbor base station, indicating the UE has performed handover to the neighbor base station.