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.

公开(公告)号：US10931708B2

公开(公告)日：2021-02-23

申请号：US16558441

申请日：2019-09-03

Applicant: Apple Inc.

Inventor： Mingguang Xu ,  Mithat C. Dogan ,  Yakun Sun ,  Rohit U. Nabar

IPC: G06F21/00 ,  H04L29/06 ,  H04L25/02 ,  H04B17/27

Abstract: This disclosure relates to techniques for performing secure ranging wireless communication. A first wireless device may receive a ranging packet from a second wireless device in a wireless manner. The ranging packet may include a first random sequence portion and a second random sequence portion. The first wireless device may perform one or more channel and noise estimations for the ranging packet. The first wireless device may perform one or more security checks for the ranging packet based on any or all of the first random sequence portion, the second random sequence portion, or the channel and noise estimation(s).

公开(公告)号：US10925007B2

公开(公告)日：2021-02-16

申请号：US16671910

申请日：2019-11-01

Applicant: Apple Inc.

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

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

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：US10447725B1

公开(公告)日：2019-10-15

申请号：US15665522

申请日：2017-08-01

Applicant: Apple Inc.

Inventor： Mingguang Xu ,  Mithat C. Dogan ,  Yakun Sun ,  Rohit U. Nabar

IPC: G06F21/00 ,  H04L29/06 ,  H04L25/02 ,  H04B17/27

Abstract: This disclosure relates to techniques for performing secure ranging wireless communication. A first wireless device may receive a ranging packet from a second wireless device in a wireless manner. The ranging packet may include a first random sequence portion and a second random sequence portion. The first wireless device may perform one or more channel and noise estimations for the ranging packet. The first wireless device may perform one or more security checks for the ranging packet based on any or all of the first random sequence portion, the second random sequence portion, or the channel and noise estimation(s).

公开(公告)号：US20250133544A1

公开(公告)日：2025-04-24

申请号：US18934531

申请日：2024-11-01

Applicant: Apple Inc.

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

IPC: H04W72/0446 ,  H04B7/06 ,  H04L1/16 ,  H04W24/10 ,  H04W72/23 ,  H04W72/542

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：US20250113214A1

公开(公告)日：2025-04-03

申请号：US18979975

申请日：2024-12-13

Applicant: Apple Inc.

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

IPC: H04W16/28 ,  H01Q3/26 ,  H04W36/30 ,  H04W36/32

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：US12144048B2

公开(公告)日：2024-11-12

申请号：US17877601

申请日：2022-07-29

Applicant: Apple Inc.

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

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

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.