公开(公告)号：US20210377988A1

公开(公告)日：2021-12-02

申请号：US17286606

申请日：2018-11-05

Applicant: Apple Inc.

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

IPC: H04W72/12

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：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：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：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.

公开(公告)号：US11018748B2

公开(公告)日：2021-05-25

申请号：US17009062

申请日：2020-09-01

Applicant: APPLE INC.

Inventor： Hua Li ,  Yang Tang ,  Jie Cui ,  Shuang Tian ,  Yuhan Zhou

IPC: H04B7/06

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：US10925101B2

公开(公告)日：2021-02-16

申请号：US16127942

申请日：2018-09-11

Applicant: Apple Inc.

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

IPC: H04W76/11 ,  H04W72/04 ,  H04W56/00 ,  H04W24/10 ,  H04L5/00 ,  H04B17/318 ,  H04B7/06

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for cell identification (ID) and beam ID detections in new radio (NR). The detections comprise NR primary synchronization signal (PSS)/secondary synchronization signal (SSS) detection, PBCH DMRS detection, SS reference signal received power (RSRP) measurement, and slot/SS burst boundary timing acquiring. Various embodiments describe how to detect a cell ID and a beam ID in millimeter wave (mmWave) operation. Other embodiments describe further details regarding how to detect NR cell and beam ID during intra-frequency measurements.

公开(公告)号：US12284666B2

公开(公告)日：2025-04-22

申请号：US17432827

申请日：2020-02-24

Applicant: Apple Inc.

Inventor： Qiming Li ,  Jie Cui ,  Yang Tang ,  Yuhan Zhou ,  Shuang Tian

IPC: H04W72/542

Abstract: A system, method, and apparatus is provided for performing carrier aggregation (CA) radio resource management (RRM). The system, method, and apparatus can receive a configuration message having configuration information from an access node; determine a measurement period for a secondary cell (SCell) and a cell identification delay based upon the configuration information; identify a new detectable cell on a secondary component carrier (SCC) as the SCell within the cell identification delay; perform a measurement for a CA operation within the measurement period; and report the measurement to the access node. The configuration message can be a Radio Resource Control (RRC) message. The measurement for the CA operation can be a measurement of the SCell on the SCC. The system, method, and apparatus can multiply a measurement control parameter by a factor less than five (5) to determine the measurement period and can multiply a measurement control parameter by a factor less than twenty (20) to determine the cell identification delay. The system, method, and apparatus can further perform an action with respect to the SCell in response to the measurement.

公开(公告)号：US12225393B2

公开(公告)日：2025-02-11

申请号：US17431286

申请日：2020-02-21

Applicant: Apple Inc.

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

IPC: H04W24/08 ,  H04L1/20 ,  H04W24/02

Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for radio link monitoring for high speed user equipment (UE). For example, some embodiments are directed to the UE including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to monitor a downlink associated with a cell using a reference signal and estimate a downlink radio link quality associated with the downlink. The processor circuitry can further be configured to compare the estimated downlink radio link quality with a threshold. The processor circuitry can further be configured to trigger an out-of-sync operation in response to the downlink radio link quality being worse than the threshold. The threshold can include a value less than 10%.

公开(公告)号：US12127145B2

公开(公告)日：2024-10-22

申请号：US17436474

申请日：2020-03-06

Applicant: Apple Inc.

Inventor： Qiming Li ,  Jie Cui ,  Yang Tang ,  Yuhan Zhou ,  Shuang Tian

IPC: H04W56/00 ,  H04W4/02

CPC classification number: H04W56/0045 ,  H04W4/027

Abstract: A method for enhanced autonomous uplink timing adjustment includes determining that a user equipment (UE) is traveling above a predetermined velocity. In response to the determination that the UE is traveling above the predetermined velocity, a maximum aggregate adjustment rate to an uplink timing for the UE and a maximum amount of a magnitude of a timing change to the uplink timing for the UE are determined. The uplink timing for the UE is adjusted based on the maximum aggregate adjustment rate and the maximum amount of the magnitude of the timing change.

公开(公告)号：US11937116B2

公开(公告)日：2024-03-19

申请号：US18089649

申请日：2022-12-28

Applicant: Apple Inc.

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

IPC: H04B17/24 ,  H04B17/309 ,  H04B17/382 ,  H04W24/10 ,  H04W36/00 ,  H04W56/00 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W92/02 ,  H04W92/10

CPC classification number: H04W24/10 ,  H04B17/24 ,  H04B17/309 ,  H04B17/382 ,  H04W36/0094 ,  H04W56/001 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W92/02 ,  H04W92/10

Abstract: Embodiments of the present disclosure provide techniques for determining synchronization signal (SS)/physical broadcast channel (PBCH) block (SSB)-based measurement timing configuration (SMTC) for measurement objects for which a user equipment is to measure feedback information in one or more measurement gaps. Other embodiments may be described and claimed.