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：US20250031263A1

公开(公告)日：2025-01-23

申请号：US18905697

申请日：2024-10-03

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Yakun Sun ,  Yuchul Kim

IPC: H04W76/18 ,  H04W8/24 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/19

Abstract: Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE) to transmit an indication of a link failure on a secondary cell. The indication may be transmitted on resources selected based on one or more conditions. One or more priority rules may be used to resolve collisions. The UE may further make an assumption of a beam or beams to use for communications with the secondary cell following the link failure and prior to receiving an indication from the network of a selected beam.

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：US11864120B2

公开(公告)日：2024-01-02

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 ,  H04W52/24 ,  H04W52/14 ,  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：US20230146169A1

公开(公告)日：2023-05-11

申请号：US17950838

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: H04W76/10 ,  H04W56/00

CPC classification number: H04W76/10 ,  H04W56/001

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：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：US20220377775A1

公开(公告)日：2022-11-24

申请号：US17761393

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: H04W72/12 ,  H04W24/08 ,  H04B7/08

Abstract: Apparatuses, systems, and methods for a user equipment device (UE) to perform methods for radio link monitoring for multiple DCI based transmissions. The UE may receive, from a network node, a configuration for multiple downlink control information (DCI) mode operation in which a physical downlink shared channel (PDSCH) is scheduled by multiple DCIs from a number of control resource sets (CORESETs). The number of CORESETs may exceed a number of CORESETs the UE can monitorable. The UE may determine a set of CORESETs to monitor based, at least in part, on one or more CORESET properties. The set of CORESETs to monitor may be less than the number of CORESETs. Additionally, the UE may monitor the set of CORESETs for at least one of a radio link failure or a beam failure.

公开(公告)号：US20220360398A1

公开(公告)日：2022-11-10

申请号：US17760551

申请日：2019-09-29

Applicant: Apple Inc.

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

IPC: H04L5/00

Abstract: To reduce the beam reporting latency, a base station may include a sounding reference signal (SRS) indication to a wireless communication device (UE) as part of the transmission configuration information (TCI) transmitted to the UE, allowing the UE to receive a corresponding downlink signal using the same beam (or with the same beam) the UE used to transmit (or with which the UE transmitted) the SRS indicated in the TCI. The SRS may be one of multiple SRSs previously transmitted by the UE. The UE may transmit the multiple SRSs periodically and/or according to semi-persistent scheduling, or it may transmit them aperiodically. Therefore, the UE does not need to report the beam quality, and the base station may perform the necessary beam measurement(s) instead. Various parameters and conditions may be defined for the UE to support SRS-based TCI.

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.