公开(公告)号：US10784947B2

公开(公告)日：2020-09-22

申请号：US16379047

申请日：2019-04-09

Applicant: Apple Inc.

Inventor： Yang Tang ,  Shuang Tian ,  Andrey Chervyakov ,  Jie Cui ,  Hua Li ,  Dmitry Belov ,  Carlos Cordeiro ,  Geng Wu ,  Jeongho Jeon ,  Puneet Jain ,  Qian Li ,  Youn Hyoung Heo ,  Anthony Lee ,  Seau S. Lim

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

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB) and methods of communication are generally described herein. The UE receive training signals from a plurality of transmit-receive points (TRPs) associated with the gNB. Each training signal may comprise a reference signal resource identifier (ID) to indicate a corresponding TRP and a corresponding transmit direction of a plurality of transmit directions. The UE may, for each transmit direction of the plurality of transmit directions, determine an average signal quality measurement based on individual signal quality measurements in multiple receive directions. The UE may select, for reporting to the gNB, a subset of the average signal quality measurements to ensure that the average signal quality measurements excluded from the subset are less than or equal to a minimum value of the average signal quality measurements in the subset.

公开(公告)号：US20250081198A1

公开(公告)日：2025-03-06

申请号：US18953601

申请日：2024-11-20

Applicant: Apple Inc.

Inventor： Yuhan Zhou ,  Rui Huang ,  Yang Tang ,  Hua Li ,  Jie Cui ,  Qiming Li

IPC: H04W72/20

Abstract: A device of a New Radio (NR) User Equipment (UE), a system, a method and a machine-readable medium. The device includes a radio frequency (RF) interface and processing circuitry coupled to the RF interface. The processing circuitry is to: cause communication with a NR evolved Node B (gNodeB) on a first bandwidth part (BWP); determine a BWP switching delay for an uplink (UL) communication from the UE to the gNodeB, the BWP switching delay based on a timing advance (TA) for the UL communication; encode the UL communication for transmission to the gNodeB; switch from the first BWP to a second BWP at an expiration of the BWP switching delay; and cause transmission of the UL communication on the second BWP.

公开(公告)号：US12238559B2

公开(公告)日：2025-02-25

申请号：US17440675

申请日：2020-05-01

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Qiming Li ,  Zhibin Yu ,  Hua Li

IPC: H04W24/10

Abstract: A user equipment (UE) device is configured for performing a signal measurement for wireless communication in a new radio (NR) network. The UE is configured to determine a frequency range (FR) of a serving cell configured to send a signal that is measured by the UE using a signal measurement. The UE configures a measurement gap (MG) pattern to perform the signal measurement. Configuring the measurement gap includes determining that the frequency range of the serving cell includes frequencies of a second frequency range (FR2), determining that a measurement object (MO) configuration for the FR2 is available, setting a measurement gap repetition periodicity (MGRP) value for the signal measurement, and setting a measurement gap length (MGL) value for the signal measurement. The UE performs a signal measurement using the MGRP value and the MGL value.

公开(公告)号：US20240373268A1

公开(公告)日：2024-11-07

申请号：US18774562

申请日：2024-07-16

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Hua Li ,  Manasa Raghavan ,  Yushu Zhang ,  Jie Cui

IPC: H04W24/08 ,  H04L5/00

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for performing Beam Failure Detection (BFD), and in particular, for performing Synchronization Signal Block (SSB) based BFD and/or Channel State Information Reference Signal (CSI-RS) based BFD. Disclosed embodiments include quasi co-location (QCL) and use case restrictions for SSB for BFD and Physical Downlink Control Channel (PDCCH), transition period handling for BFD, and implicit configuration SSB for BFD. Other embodiments may be described and/or claimed.

公开(公告)号：US12126393B2

公开(公告)日：2024-10-22

申请号：US17440725

申请日：2020-03-27

Applicant: Apple Inc.

Inventor： Hua Li ,  Yang Tang ,  Jie Cui ,  Qiming Li ,  Rui Huang

IPC: H04B17/318 ,  H04W36/30 ,  H04W48/16 ,  H04W4/70

CPC classification number: H04B17/318 ,  H04W36/30 ,  H04W48/16 ,  H04W4/70

Abstract: This disclosure describes methods, systems, and devices for measuring a reference signal received power (RSRP) in a user equipment (UE) that operates in machine type communication (MTC). In one example, a method involves receiving, from a radio access network (RAN) serving the UE, a resynchronization signal (RSS). The method also involves calculating a reference signal received power (RSRP) of the RSS.

公开(公告)号：US12089096B2

公开(公告)日：2024-09-10

申请号：US17441972

申请日：2020-04-03

Applicant: Apple Inc.

Inventor： Qiming Li ,  Jie Cui ,  Yang Tang ,  Hua Li ,  Rui Huang

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/18

CPC classification number: H04W36/0069 ,  H04W36/08 ,  H04W36/18

Abstract: Methods, systems, apparatus, and computer programs, for implementing dual-connectivity handover. In one aspect, a method includes determining, by user equipment (UE), whether the UE is capable of simultaneous communication with a source cell and a target cell, generating, by the UE, a handover indicator, the handover indicator having one or more fields structuring data that indicates that the UE is capable of simultaneous communication with the source cell and the target cell, transmitting, by the UE, the handover indicator to an access node, and receiving, by the UE and from the access node based on receipt by the access node of the handover indicator, a command to perform handover.

公开(公告)号：US12028731B2

公开(公告)日：2024-07-02

申请号：US16450715

申请日：2019-06-24

Applicant: Apple Inc.

Inventor： Yuhan Zhou ,  Jie Cui ,  Yang Tang ,  Hua Li ,  Rui Huang

IPC: H04W24/10 ,  H04W56/00 ,  H04W88/06

CPC classification number: H04W24/10 ,  H04W56/0065 ,  H04W88/06

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for configuration of System frame number (SFN) and Frame Timing Difference (SFTD) measurement in an E-UTRA (Evolved Universal Terrestrial Radio Access)—NR Dual Connectivity (EN-DC) network, and an NE-DC network. Various embodiments describe how to configure and perform the SFTD measurement in the EN-DC or NE-DC network of various conditions to facilitate adequate SFTD measurements and improve measurement accuracy and system performance. Other embodiments may be described and claimed.

公开(公告)号：US11962539B2

公开(公告)日：2024-04-16

申请号：US17292056

申请日：2019-10-16

Applicant: Apple Inc.

Inventor： Zhibin Yu ,  Hua Li ,  Qiming Li ,  Jie Cui ,  Yang Tang

IPC: H04L5/00 ,  H04B17/14 ,  H04B17/327

CPC classification number: H04L5/0058 ,  H04B17/14 ,  H04B17/327

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for performing radio link monitoring or beam failure detection (RLM/BFD) in, or related to, a new radio (NR) involved network. Various embodiments are directed to adaptive configuration of threshold values for in-sync and/or out-of-sync (IS/OOS) in the NR involved network and adequately performing RLM/BFD. Such RLM/BFD with adaptive IS/OOS configuration may improve measurement accuracy and system performance. Other embodiments may be described and claimed.

公开(公告)号：US11956048B2

公开(公告)日：2024-04-09

申请号：US17277133

申请日：2019-09-26

Applicant: APPLE INC.

Inventor： Hua Li ,  Jie Cui ,  Yang Tang ,  Qiming Li ,  Manasa Raghavan ,  Zhibin Yu

IPC: H04W56/00 ,  H04B7/06 ,  H04B17/318

CPC classification number: H04B7/0695 ,  H04B7/0626 ,  H04B17/318 ,  H04W56/001

Abstract: Systems and methods provide for beam detection in a wireless communication system. An apparatus for a UE may be configured to identify a plurality of CSI-RS resources corresponding to different Tx beams configured for measurement by the UE, measure an L1-RSRP for the plurality of CSI-RS resources, determine a selected Tx beam of the different Tx beams based on measured L1-RSRP values for the plurality of CSI-RS resources, and determine a measurement accuracy of a first L1-RSRP value corresponding to the selected Tx beam based on successful beam detection probability.

公开(公告)号：US11930443B2

公开(公告)日：2024-03-12

申请号：US17250648

申请日：2019-08-19

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Hua Li ,  Manasa Raghavan ,  Yuhan Zhou

IPC: H04W4/00 ,  H04W48/16 ,  H04W88/08

CPC classification number: H04W48/16 ,  H04W88/08

Abstract: An apparatus of a next generation Node B (gNB) comprises one or more baseband processors to generate an indication for a user equipment (UE) to indicate which synchronization signal block (SSB) based measurement timing configuration (SMTC) occasion can be used by the UE for one or more measurements, and to send the indication to the UE. The apparatus can include a memory to store the indication.