公开(公告)号：US12185146B2

公开(公告)日：2024-12-31

申请号：US16637660

申请日：2018-08-07

Applicant: Apple Inc.

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

IPC: H04W24/10 ,  H04B17/318 ,  H04L5/00 ,  H04W56/00 ,  H04W76/27

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for quality-based measurements in new radio (NR). The measurements concern reference signal received quality (RSRQ) measurements and pertinent received signal strength indicator (RSSI) measurements, and signal-to-noise and interference measurements of synchronization signal (SS-SINR) in NR. Various embodiments describe how to measure the pertinent power levels in time domain and frequency domain. Other embodiments may be described and claimed.

公开(公告)号：US12069591B2

公开(公告)日：2024-08-20

申请号：US17428476

申请日：2020-02-04

Applicant: Apple Inc.

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

IPC: H04W52/32 ,  H04L5/00 ,  H04W52/24

CPC classification number: H04W52/325 ,  H04L5/0048 ,  H04W52/243

Abstract: Disclosed is a system and method that allows a user equipment (UE) to perform a wireless measurement. The method configures a characteristic of a channel-state information reference signal (CSI-RS) for tracking of the UE. Also disclosed is a system and method to perform radio resource management (RRM) testing. Testing can include: setting a power level of CSI-RS for tracking to a smaller value that a power level of another RRM reference signal; or setting a negative power offset value of the CSI-RS for tracking to a synchronization signal (SS) of the RRM reference signal; or setting a positive power offset value of the CSI-RS for tracking to a physical downlink shared channel (PDSCH) of the RRM reference signal.

公开(公告)号：US12063537B2

公开(公告)日：2024-08-13

申请号：US17430023

申请日：2020-02-13

Applicant: Apple Inc.

Inventor： Hua Li ,  Yang Tang ,  Jie Cui ,  Qiming Li ,  Andrey Chervyakov

IPC: H04W24/10 ,  H04B7/0417 ,  H04B7/06 ,  H04B17/318 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04B7/0417 ,  H04B7/0617 ,  H04B17/318 ,  H04L5/0051

Abstract: A method, system, and computer-readable media for evaluating the accuracy of user equipment (UE) reference signal receive power (RSRP) measurements is disclosed. This includes determining both a total reference signal receive power (RSRP) accuracy and a RSRP baseband accuracy associated with the UE. This also includes executing a plurality of comparisons between the total RSRP accuracy, the RSRP baseband accuracy, and a plurality of accuracy thresholds, and then determining the UE passes a measurement accuracy test based on the plurality of comparisons.

公开(公告)号：US12058542B2

公开(公告)日：2024-08-06

申请号：US17293429

申请日：2019-11-11

Applicant: Apple Inc.

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

IPC: H04W24/08 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04L5/0048

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：US11968730B2

公开(公告)日：2024-04-23

申请号：US17946640

申请日：2022-09-16

Applicant: Apple Inc.

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

IPC: H04W76/11 ,  H04B7/06 ,  H04B17/318 ,  H04L5/00 ,  H04W24/10 ,  H04W56/00 ,  H04W72/04 ,  H04W72/044

CPC classification number: H04W76/11 ,  H04B7/0695 ,  H04B17/318 ,  H04L5/0048 ,  H04W24/10 ,  H04W56/001 ,  H04W72/046 ,  H04L5/0023

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：US11924806B2

公开(公告)日：2024-03-05

申请号：US17267782

申请日：2019-08-08

Applicant: Apple Inc.

Inventor： Rui Huang ,  Zhibin Yu ,  Jie Cui ,  Yang Tang ,  Hua Li

IPC: H04W24/10 ,  H04J11/00 ,  H04W24/08 ,  H04W56/00 ,  H04W68/00 ,  H04W76/28

CPC classification number: H04W68/005 ,  H04J11/0073 ,  H04J11/0076 ,  H04W24/08 ,  H04W24/10 ,  H04W56/001 ,  H04W76/28

Abstract: Systems, apparatuses, methods, and computer-readable media are provided for user equipment (UE) idle mode operations. In embodiments, a UE wakes up more than once during a Discontinuous Reception (DRX) cycle. Inter-frequency measurement requirements may be relaxed based on DRX cycle length. Some embodiments include radiofrequency (RF) circuitry warm-up overhead reduction by on-duration separation with RF circuitry switching pattern adaption. Some embodiments include and RF circuitry warm-up overhead reduction by adaptive synchronization signal block (SSB) reference symbol down-selection. Other embodiments may be described and/or claimed.

公开(公告)号：US20240007892A1

公开(公告)日：2024-01-04

申请号：US18369097

申请日：2023-09-15

Applicant: Apple Inc.

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

IPC: H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04L5/0051

Abstract: Disclosed are methods, systems, apparatus, and computer programs for a coordination mechanism between a network and a user equipment (UE) that is configured to perform cross-link interference (CLI) measurements. In one aspect, a method includes generating a message that indicates a capability of a user equipment (UE) whether to support simultaneous reception of at least one signal associated with cross-link interference (CLI) measurement and at least one signal associated with a serving cell or a neighbor cell of the UE. The method further includes transmitting the message to an access node (AN).

公开(公告)号：US11469834B2

公开(公告)日：2022-10-11

申请号：US16158767

申请日：2018-10-12

Applicant: Apple Inc.

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

IPC: H04B17/318 ,  H04W48/12 ,  H04L5/00 ,  H04W24/10

Abstract: Methods, systems, and storage media are described for radio link monitoring (RLM) for new radio (NR). Other embodiments may be described and/or claimed.

公开(公告)号：US20220158778A1

公开(公告)日：2022-05-19

申请号：US17440134

申请日：2020-05-01

Applicant: Apple Inc.

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

IPC: H04L1/20 ,  H04L1/00 ,  H04W24/08

Abstract: The present application relates to wireless devices, and more particularly to apparatus, systems, and methods for radio link monitoring beam management in 5G-New Radio (NR) for Ultra-Reliable Low-Latency Communication (URLLC). In one embodiment, a method for signal quality monitoring in a wireless system is disclosed, comprising: determining, by a user device, to connect to the wireless system in a high reliability mode, and determining, based on the determination to connect to the wireless system in the high reliability mode, to use, by the user device, a first pair of out-of-sync (OOS) and in-sync (IS) block error rate (BLER) threshold values and/or a first set of transmission parameters for radio link monitoring (RLM), rather than a second pair of OOS and IS BLER threshold values or a second set of transmission parameters that are configured for use in a non-high reliability mode.

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.