公开(公告)号：US11490397B2

公开(公告)日：2022-11-01

申请号：US16591542

申请日：2019-10-02

Applicant: Apple Inc.

Inventor： Wanping Zhang ,  Sachin J. Sane ,  Faraz Faheem ,  Wei Zhang ,  Dawei Zhang ,  Wei Zeng ,  Haitong Sun ,  Yuqin Chen ,  Haijing Hu ,  Ping Wang

IPC: H04W72/10 ,  H04W74/00 ,  H04W76/27 ,  G05D1/02 ,  G05D1/00 ,  H04W4/40 ,  H04W76/28 ,  H04W4/029 ,  G08G1/16 ,  H04W4/02 ,  H04W8/08 ,  H04W52/02 ,  H04W72/12

Abstract: Embodiments are presented herein for adjusting the conduct of routine communications of safety messages in V2X networks in order to conserve resources in participating power-limited devices while satisfying V2X system latency demands. Scheduling (e.g., timing and/or frequency) of safety message communications performed by certain UE devices participating in a V2X network may be dynamically adjusted according to various criteria, such as factors relating to the DRX cycle schedule, motion or mobility, traffic environment, and/or battery or power capabilities of the UE devices, which may conserve UE resources and power consumption. Certain UE devices may efficiently transmit safety messages to the V2X network using one of several proposed RACH-based procedures. In some embodiments, the size of safety message communications may be reduced through various compression techniques, and/or by reducing the amount of contained information, e.g., by omitting certain parameters, which may reduce the resources consumed by performing safety message communications.

公开(公告)号：US20220346123A1

公开(公告)日：2022-10-27

申请号：US17655252

申请日：2022-03-17

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Dawei Zhang ,  Farhan Aziz ,  Haitong Sun ,  Hong He ,  Navid Ehsan ,  Sigen Ye ,  Wei Zeng ,  Wei Zhang ,  Weidong Yang

IPC: H04W72/12 ,  H04L5/00 ,  H04W76/28

Abstract: A wireless communication system may adapt physical downlink control channel (PDCCH) monitoring behaviors using downlink control information (DCI). The change in monitoring behavior may be skipping or switching. The timeline for applying switching or skipping may be applied after a reference point and a processing time. In some embodiments, the processing time may be either based on UE processing, network processing, or a combination.

公开(公告)号：US20210360674A1

公开(公告)日：2021-11-18

申请号：US16499178

申请日：2018-08-10

Applicant: Apple Inc.

Inventor： Junsung Lim ,  Wei Zhang ,  Sami M. Almalfouh ,  Johnson O. Sebeni ,  Yuchul Kim ,  Wei Zeng ,  Haitong Sun ,  Pengkai Zhao ,  Ping Wang ,  Dawei Zhang ,  Fangli Xu ,  Yuqin Chen ,  Haijing Hu

IPC: H04W72/12 ,  H04L5/00 ,  H04W52/02

Abstract: A device may monitor a first search space (SS) corresponding to an active first component carrier (CC), and detect first control information (CI) that identifies an inactive second CC. In response to receiving the first CI, the device may activate the inactive second CC to make it an active second CC. The device may also set up a second SS corresponding to the active second CC, and may monitor the second SS to schedule the active second CC and receive a physical data channel. The first CI may also include additional scheduling information and a start time for reception of the physical data channel. The device may operate in a first bandwidth part (BWP) according to a first communication configuration associated with the first bandwidth part, and may switch to operating in a second BWP and to operating according to a second communication configuration associated with the second BWP.

公开(公告)号：US11152994B1

公开(公告)日：2021-10-19

申请号：US16884762

申请日：2020-05-27

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Ismael Gutierrez Gonzalez ,  Wei Zeng ,  Wei Zhang ,  Yuchul Kim ,  Yushu Zhang

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0413

Abstract: The systems, methods, and apparatuses can receive one or more communication signals traversing through a communication channel. The systems, methods, and apparatuses can estimate one or more known parameters, characteristics, and/or attributes of the communication channel, for example, scattering, fading, and/or power decay over distance, through a process referred to as channel estimation. The systems, methods, and apparatuses can develop various channel coefficients, for example, amplitudes and/or phases, describing the channel response of the communication channel at discrete intervals of time, also referred to as taps. The systems, methods, and apparatuses can assign taps to various priorities and, thereafter, utilize these priorities to selectively include their corresponding channel coefficients in a CSI report or exclude their corresponding channel coefficients from the CSI report.

公开(公告)号：US11057790B2

公开(公告)日：2021-07-06

申请号：US16935008

申请日：2020-07-21

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Tianyan Pu ,  Yang Li ,  Haitong Sun ,  Wei Zeng ,  Jia Tang ,  Beibei Wang ,  Sami M. Almalfouh ,  Zhu Ji ,  Johnson O. Sebeni ,  Yuchul Kim ,  Dawei Zhang

IPC: H04L5/00 ,  H04W24/10 ,  H04B7/08 ,  H04B7/06 ,  H04W72/08 ,  H04W24/08 ,  H04W72/04 ,  H04W88/02

Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including performing one or more of periodic beam quality measurements and/or event-based beam quality measurements, determining, based at least in part on one or more of the periodic beam quality measurements and/or the event-based beam quality measurements, a recommended beam quality measurement configuration, and transmitting, to a base station serving the UE, the recommended beam quality measurement configuration. In addition, the UE may perform receiving, from the base station, instructions regarding the beam quality measurement configuration. The instructions may include instructions to activate, deactivate, and/or modify at least one beam quality measurement configuration. In addition, the instructions may be based, at least in part, on the recommended beam quality measurement configuration.

公开(公告)号：US10973008B2

公开(公告)日：2021-04-06

申请号：US16186350

申请日：2018-11-09

Applicant: Apple Inc.

Inventor： Sami M. Almalfouh ,  Yuchul Kim ,  Wei Zhang ,  Tianyan Pu ,  Zhu Ji ,  Dawei Zhang ,  Wei Zeng ,  Johnson O. Sebeni ,  Yang Li

IPC: H04W76/10 ,  H04W72/04 ,  H04W28/18 ,  H04W76/28

Abstract: This disclosure relates to techniques for a wireless device to indicate a preferred bandwidth part and duty cycle in a cellular communication system. A wireless device and a cellular base station may establish a radio resource control connection. The wireless device may transmit an indication of a preferred bandwidth part, or a preferred communication duty cycle, or both, to the cellular base station. The cellular base station may select a bandwidth part, or communication duty cycle, or both, based at least in part on the indication provided by the wireless device, and may transmit an indication of the selected bandwidth part, communication duty cycle, or both, to the wireless device. The cellular base station and the wireless device may perform cellular communication using the selected bandwidth part, communication duty cycle, or both.

公开(公告)号：US10952147B2

公开(公告)日：2021-03-16

申请号：US16869380

申请日：2020-05-07

Applicant: Apple Inc.

Inventor： Tianyan Pu ,  Sai Sravan Bharadwaj Karri ,  Wei Zhang ,  Swaminathan Balakrishnan ,  Xiantao Sun ,  Beibei Wang ,  Manish G. Vemulapalli ,  Jia Tang ,  Sami M. Almalfouh ,  Zhu Ji ,  Sachin J. Sane

IPC: H04W52/02 ,  H04B7/0456 ,  H04B7/08 ,  H04W88/06

Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on control information, a device may determine whether the current number of active receiver chains can be reduced while maintaining a target achievable code rate for a period of data reception associated with the control information. Additionally, the device may generate and use a lookup table to determine whether to depower receiver chains, and which receiver chains to depower.

公开(公告)号：US10945268B2

公开(公告)日：2021-03-09

申请号：US16749553

申请日：2020-01-22

Applicant: Apple Inc.

Inventor： Yang Li ,  Haitong Sun ,  Zhu Ji ,  Yuchul Kim ,  Beibei Wang ,  Wei Zhang ,  Wei Zeng ,  Jia Tang ,  Tianyan Pu ,  Sami M. Almalfouh ,  Johnson O. Sebeni ,  Dawei Zhang

IPC: H04B7/02 ,  H04W72/04 ,  H04B7/06 ,  H04B7/08 ,  H04W24/10

Abstract: Apparatuses, systems, and methods for a wireless device to perform user equipment (UE) initiated beam management procedures with a base station or gNB. A wireless device in communication with a 5G base station may detect degradation in the pair of transmit and receive beams between the gNB and the device. The device may select a preferred beam management procedure and indicate the preference to the gNB.

公开(公告)号：US20210051767A1

公开(公告)日：2021-02-18

申请号：US16968846

申请日：2019-08-15

Applicant: APPLE INC

Inventor： Wei Zhang ,  Fangli XU ,  Haitong Sun ,  Sriram Subramanian ,  Vishwanth Kamala Govindaraju ,  Johnson O. Sebeni ,  Dawei Zhang ,  Hong He ,  Yuchul Kim

IPC: H04W88/10 ,  H04W88/02 ,  H04W76/15 ,  H04W76/27 ,  H04W72/04 ,  H04W24/08

Abstract: A user equipment (UE) device may reside in a state of dual connectivity with a master cell group (MCG) and a secondary cell group (SCG), wherein the radio access technologies of the MCG and the SCG are different. While in the dual connectivity state, the UE device may transition to a mode of reduced activity (e.g., processing and/or RF activity) relative to the secondary cell group (SCG) in order to save power, e.g., when traffic flow via the SCG is below a threshold, or when scheduling activity on the SCG is low. Various mechanisms may be employed to reduce activity, e.g., mechanisms such as reduction of beam monitoring, deactivation of secondary cells of the SCG, reduction of number of active antenna elements, employment of longer periods for periodic measurement and reporting processes, etc.

公开(公告)号：US20200351695A1

公开(公告)日：2020-11-05

申请号：US16935008

申请日：2020-07-21

Applicant: Apple Inc.

Inventor： Wei Zhang ,  Tianyan Pu ,  Yang Li ,  Haitong Sun ,  Wei Zeng ,  Jia Tang ,  Beibei Wang ,  Sami M. Almalfouh ,  Zhu Ji ,  Johnson O. Sebeni ,  Yuchul Kim ,  Dawei Zhang

IPC: H04W24/10 ,  H04L5/00 ,  H04B7/08 ,  H04B7/06 ,  H04W72/08 ,  H04W24/08 ,  H04W72/04

Abstract: Apparatuses, systems, and methods for a wireless device to perform a method including performing one or more of periodic beam quality measurements and/or event-based beam quality measurements, determining, based at least in part on one or more of the periodic beam quality measurements and/or the event-based beam quality measurements, a recommended beam quality measurement configuration, and transmitting, to a base station serving the UE, the recommended beam quality measurement configuration. In addition, the UE may perform receiving, from the base station, instructions regarding the beam quality measurement configuration. The instructions may include instructions to activate, deactivate, and/or modify at least one beam quality measurement configuration. In addition, the instructions may be based, at least in part, on the recommended beam quality measurement configuration.