公开(公告)号：US10660085B2

公开(公告)日：2020-05-19

申请号：US15937365

申请日：2018-03-27

Applicant: Apple Inc.

Inventor： Mingguang Xu ,  Su Khiong Yong ,  Mithat C. Dogan ,  Rohit U. Nabar ,  Qi Wang ,  Kyle C. Brogle ,  Andrew J. Ringer

IPC: H04W72/04 ,  H04W64/00 ,  H04L25/02 ,  H04W84/12 ,  H04L5/00

Abstract: Communicating wireless devices collaborate and utilize waveforms to enable secure channel estimation. To protect against a repetitive replay attack, some embodiments include Single Carrier Physical Layer (SC-PHY) waveforms and/or interpolated OFDM waveforms that do not include a repeatable or predictable structure. The waveforms are transmitted in ranging packet structures that are compatible with legacy 802.11 technologies that do not utilize secure channel estimation. The ranging packets are received in combination with the information previously exchanged to enable the receiving wireless system to securely determine a channel estimate (e.g., determine a channel estimate without an interloper transmission that is not an authentic first arrival path in a multi-path channel between the wireless systems). Thus, one or both of the wireless systems can estimate the distance between them (or range). Devices utilizing legacy 802.11 technologies may receive the ranging packet structures and determine durations for deferring access to the channel.

公开(公告)号：US20200100118A1

公开(公告)日：2020-03-26

申请号：US16141752

申请日：2018-09-25

Applicant: Apple Inc.

Inventor： Yakun Sun ,  Mingguang Xu ,  Mithat C. Dogan ,  Ehsan Haghani ,  Rohit U. Nabar ,  Matthew A. Mow

IPC: H04W16/28 ,  H04W36/30 ,  H01Q3/26

Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include a phased antenna array. Sensors and other circuitry in the electronic device may generate sensor data such as accelerometer data, gyroscope data, magnetometer data, location data, and spatial ranging data. The wireless circuitry may establish and maintain one or more wireless links with external devices based on the sensor data as the device moves over time. For example, the wireless circuitry may perform physical layer beam adjustments, inter-radio access technology handovers, intra-radio access technology handovers, and/or dual connectivity adjustments based on the sensor data. This may allow the device to maintain one or more wireless links without having to sweep the signal beam of the phased antenna array over its entire field of view each time the device has moved.

公开(公告)号：US11943024B2

公开(公告)日：2024-03-26

申请号：US17598226

申请日：2021-06-14

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Haitong Sun ,  Rohit U. Nabar ,  Wei Zeng ,  Weidong Yang ,  Yakun Sun

IPC: H04W8/24 ,  H04B7/06

CPC classification number: H04B7/0617 ,  H04W8/24

Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide beamforming scheme selection and signaling in wireless communication systems.

公开(公告)号：US20230035400A1

公开(公告)日：2023-02-02

申请号：US17843870

申请日：2022-06-17

Applicant: Apple Inc.

Inventor： Ehsan Haghani ,  Rohit U. Nabar ,  Parvathanathan Subrahmanya

IPC: H04W36/00 ,  H04W52/36 ,  H04W52/14

Abstract: The present application relates to devices and components including apparatus, systems, and methods for early conditional handovers based on body proximity sensing or maximum permissible exposure limits in wireless networks.

公开(公告)号：US20230007653A1

公开(公告)日：2023-01-05

申请号：US17939742

申请日：2022-09-07

Applicant: Apple Inc.

Inventor： Yakun Sun ,  Anatoliy S. Ioffe ,  Ehsan Haghani ,  Rohit U. Nabar

IPC: H04W72/04 ,  H04B7/06 ,  H04W72/12 ,  H04W72/08 ,  H04L1/16

Abstract: Methods and systems include beamformed wireless communications to and from a user equipment electronic device. During operation of the user equipment electronic device, a change in slot aggregation is made. Using the aggregated slots, the user equipment electronic device and/or a wireless network utilize beam sweeps to determine a best beam pairing by repeating a shared channel in the aggregated slots with a beam sweep of multiple beams between the user equipment electronic device and the wireless network.

公开(公告)号：US20220303091A1

公开(公告)日：2022-09-22

申请号：US17598225

申请日：2021-06-15

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Haitong Sun ,  Rohit U. Nabar ,  Wei Zeng ,  Weidong Yang ,  Yakun Sun

IPC: H04L5/00 ,  H04W72/04

Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide channel-based beamforming in wireless communication systems.

公开(公告)号：US20220248337A1

公开(公告)日：2022-08-04

申请号：US17720028

申请日：2022-04-13

Applicant: Apple Inc.

Inventor： Yakun Sun ,  Anatoliy S. Ioffe ,  Ehsan Haghani ,  Rohit U. Nabar

IPC: H04W52/14 ,  H04W72/04 ,  H04W76/27 ,  H04W52/36 ,  H04W76/10

Abstract: Methods and systems for controlling uplink (UL) transmission power of a user equipment (UE) electronic device includes determining, using the UE electronic device, that a maximum power availability for a transmission between the UE and a wireless network node is not appropriate to current conditions. Based on the determination that maximum power availability is not appropriate the UE electronic device sends a request to the wireless network node to reduce power for communication with the wireless network node. Based on the request, the UE electronic device communicates at a reduced power level for communications with the wireless network node.

公开(公告)号：US20220174643A1

公开(公告)日：2022-06-02

申请号：US17576611

申请日：2022-01-14

Applicant: Apple Inc.

Inventor： Anatoliy Sergey Ioffe ,  Rohit U. Nabar ,  Rastislav Vazny

IPC: H04W64/00 ,  G01S5/02 ,  H04W72/04 ,  H04W74/08 ,  H04W16/14

Abstract: Systems and methods for using ranging signals with cellular devices. The ranging signals may utilize ranging slots and resources at least partially allocated by a cellular network. The resources may include frequencies used for uplink or downlink communications between the cellular network and the cellular devices. Alternatively, the resources may include frequencies outside of a spectrum used for communication between the cellular network and the cellular devices.

公开(公告)号：US11229002B2

公开(公告)日：2022-01-18

申请号：US16824350

申请日：2020-03-19

Applicant: Apple Inc.

Inventor： Anatoliy Sergey Ioffe ,  Rohit U. Nabar ,  Rastislav Vazny

IPC: H04W64/00 ,  G01S5/02 ,  H04W72/04 ,  H04W74/08 ,  H04W16/14

Abstract: Systems and methods for using ranging signals with cellular devices. The ranging signals may utilize ranging slots and resources at least partially allocated by a cellular network. The resources may include frequencies used for uplink or downlink communications between the cellular network and the cellular devices. Alternatively, the resources may include frequencies outside of a spectrum used for communication between the cellular network and the cellular devices.

公开(公告)号：US20210076349A1

公开(公告)日：2021-03-11

申请号：US16824350

申请日：2020-03-19

Applicant: Apple Inc.

Inventor： Anatoliy Sergey Ioffe ,  Rohit U. Nabar ,  Rastislav Vazny

IPC: H04W64/00 ,  G01S5/02 ,  H04W16/14 ,  H04W74/08 ,  H04W72/04

Abstract: Systems and methods for using ranging signals with cellular devices. The ranging signals may utilize ranging slots and resources at least partially allocated by a cellular network. The resources may include frequencies used for uplink or downlink communications between the cellular network and the cellular devices. Alternatively, the resources may include frequencies outside of a spectrum used for communication between the cellular network and the cellular devices.