公开(公告)号：US20220279450A1

公开(公告)日：2022-09-01

申请号：US16977442

申请日：2019-09-29

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Yakun Sun ,  Yuchul Kim ,  Yuqin Chen

IPC: H04W52/08 ,  H04W52/14 ,  H04W52/36 ,  H04W52/24

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to perform power control for uplink (UL) reference signals (RS). A UE may determine spatial configuration for UL RS based on another communication. A UE may determine an updated pathloss within a reduced implementation following an update of downlink (DL) RS. A UE may reset a power control factor in response to receiving an update.

公开(公告)号：US11201662B2

公开(公告)日：2021-12-14

申请号：US16671881

申请日：2019-11-01

Applicant: Apple Inc.

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

IPC: H04B7/08 ,  H04W16/28 ,  H04W72/04 ,  H04L25/02 ,  H04L5/00

Abstract: Systems and methods related to partial beam correspondence may be used to address potential limitations of beamforming wireless networks. A user equipment electronic device and/or wireless network identifies a subset of available transmitter beams for the user equipment electronic device that are indicated as similar to a downlink reference signal received at the user equipment electronic device from a wireless network node. The user equipment electronic device sweeps the subset of available transmitter beams for communication with the wireless network node and uses a best beam from the sweep to communicate with the wireless network node.

公开(公告)号：US10986510B2

公开(公告)日：2021-04-20

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 ,  H01Q3/26 ,  H04W36/30

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：US20210099271A1

公开(公告)日：2021-04-01

申请号：US17023342

申请日：2020-09-16

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Yakun Sun ,  Fangli Xu ,  Yuqin Chen ,  Dawei Zhang ,  Haijing Hu ,  Chunhai Yao ,  Yuchul Kim ,  Hong He ,  Wei Zeng ,  Haitong Sun

IPC: H04L5/00 ,  H04W24/10 ,  H04B7/06

Abstract: A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information.

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：US12028813B2

公开(公告)日：2024-07-02

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: H04W72/51 ,  H04W52/14 ,  H04W52/36 ,  H04W72/044 ,  H04W76/10 ,  H04W76/27

CPC classification number: H04W52/146 ,  H04W52/365 ,  H04W72/0473 ,  H04W72/51 ,  H04W76/10 ,  H04W76/27

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：US20240155501A1

公开(公告)日：2024-05-09

申请号：US18509598

申请日：2023-11-15

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Yakun Sun ,  Yuchul Kim ,  Yuqin Chen

IPC: H04W52/08 ,  H04W52/14 ,  H04W52/24 ,  H04W52/36

CPC classification number: H04W52/08 ,  H04W52/146 ,  H04W52/242 ,  H04W52/367

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to perform power control for uplink (UL) reference signals (RS). A UE may determine spatial configuration for UL RS based on another communication. A UE may determine an updated pathloss within a reduced implementation following an update of downlink (DL) RS. A UE may reset a power control factor in response to receiving an update.

公开(公告)号：US11894909B2

公开(公告)日：2024-02-06

申请号：US17878863

申请日：2022-08-01

Applicant: Apple Inc.

Inventor： Yakun Sun ,  Rohit U. Nabar ,  Mithat C. Dogan ,  Parvathanathan Subrahmanya ,  Han Yan ,  Louay Jalloul

IPC: H04L5/12 ,  H04B7/08 ,  H04B7/06 ,  H04B7/0426

CPC classification number: H04B7/086 ,  H04B7/043 ,  H04B7/0639 ,  H04B7/0695

Abstract: The present application relates to devices and components including apparatus, systems, and methods for determining a beam for communication between a user equipment and a base station. For example, angle of arrival estimates may be utilized for determining the beam for communication.

公开(公告)号：US20230155765A1

公开(公告)日：2023-05-18

申请号：US17916898

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawi Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Weldong Yang ,  Yakun Sun ,  Yang Tang ,  Yuchul Kim

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0012

Abstract: Features for increasing sounding reference signal (SRS) resource capacity for wireless communications may include introducing a larger comb size with comb hopping, providing support to determine the slot offset and/or comb offset for aperiodic SRS based on downlink control information (DCI) alone or based on both DCI and radio resource control (RRC), applying RB level frequency hopping within an SRS resource across different symbols, and/or applying time domain orthogonal cover code (TD-OCC) to symbols within an SRS resource. The TD-OCC may be applied to SRS for codebook, non-codebook and antenna switching, and may also be applied simultaneously with comb hopping and/or RB level hopping in certain scenarios.

公开(公告)号：US20230146267A1

公开(公告)日：2023-05-11

申请号：US17950742

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: H04W76/14 ,  H04W76/15 ,  H04L5/00

CPC classification number: H04W76/14 ,  H04L5/0051 ,  H04W76/15

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).