公开(公告)号：US11855709B2

公开(公告)日：2023-12-26

申请号：US17948583

申请日：2022-09-20

Applicant: Apple Inc.

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

IPC: H04L23/02 ,  H04B17/373 ,  H04B7/06 ,  H04L5/00 ,  H04L43/0823

CPC classification number: H04B17/373 ,  H04B7/0695 ,  H04L5/0048 ,  H04L43/0823

Abstract: Methods, systems, and storage media are described for the Embodiments discussed herein may relate to enhancements to radio link monitoring (RLM) for new radio (NR) systems. Other embodiments may be described and/or claimed.

公开(公告)号：US11611376B2

公开(公告)日：2023-03-21

申请号：US17259468

申请日：2019-08-09

Applicant: Apple Inc.

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

IPC: H04B7/0408 ,  H04B7/06 ,  H04W72/04 ,  H04W72/044

Abstract: In NR, a gNB utilizes multiple antennas and beam forming techniques for downlink transmissions to UEs. Described herein are methods and apparatus by which a UE measures the quality of multiple directional beams received from a gNB.

公开(公告)号：US11509407B2

公开(公告)日：2022-11-22

申请号：US17267769

申请日：2019-08-09

Applicant: Apple Inc.

Inventor： Hua Li ,  Jie Cui ,  Yang Tang ,  Tom Harel ,  Rui Huang

IPC: H04B17/318 ,  H04B17/24 ,  H04B17/336

Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for accuracy measurements in UE baseband-demodulation-performance tests in new radio (NR) frequency range 2 (FR2) operations. The accuracy measurements includes, but not limited to, reference signal received power (RSRP) accuracy, reference signal received quality (RSRQ), and signal-to-noise and interference (SINR) accuracy. Various embodiments describe how to measure RSRP/RSRQ/SINR accuracies in an over-the-air (OTA) test environment in NR FR2 operations.

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：US12167499B2

公开(公告)日：2024-12-10

申请号：US17289637

申请日：2019-10-28

Applicant: Apple Inc.

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

IPC: H04W8/24 ,  H04W72/51 ,  H04W76/15 ,  H04W88/06

Abstract: Methods, systems, and storage media described herein may have the complexity to support simultaneous communications (e.g., transmission/reception to/from) with two or more cells. Therefore, before configuring a handover, the network needs to know if these methods, systems, and storage media can support simultaneous communication with multiple cells or not. Among other things, these methods, systems, and storage media can reduce the interruption time during handovers for when these methods, systems, and storage media are capable of such simultaneous communication.

公开(公告)号：US12167429B2

公开(公告)日：2024-12-10

申请号：US17250652

申请日：2019-08-19

Applicant: Apple Inc.

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

IPC: H04W72/04 ,  H04W56/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23 ,  H04W72/53

Abstract: An apparatus of a user equipment (UE) comprises one or more baseband processors to process a bandwidth part (BWP) switching request from a serving cell at slot n, and to perform an active BWP switch to a new BWP on the serving cell at a time no later than slot n+Y, wherein Y is a BWP switching delay. The one or more baseband processors are to accommodate a timing advance (TA) value to determine when to perform the active BWP switch. The apparatus can include a memory to store the BWP switching request.

公开(公告)号：US12034550B2

公开(公告)日：2024-07-09

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

CPC classification number: H04L1/203 ,  H04L1/0016 ,  H04L1/0036 ,  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：US12022501B2

公开(公告)日：2024-06-25

申请号：US17440552

申请日：2020-03-20

Applicant: Apple Inc.

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

IPC: H04W72/541 ,  H04L5/00 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/541 ,  H04L5/0051 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/23

Abstract: Systems, devices, and techniques for measuring and reporting cross-link interference (CLI) are described. A described technique includes determining, by a first wireless device, whether to perform a CLI measurement; determining a quantity of activated transmission configuration indicator (TCI) states associated with a second wireless device; performing the CLI measurement based on the quantity of activated TCI states; and transmitting a CLI report in response to the CLI measurement.

公开(公告)号：US11343057B2

公开(公告)日：2022-05-24

申请号：US16408003

申请日：2019-05-09

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Yuhang Guo ,  Gang Xiong ,  Hua Li ,  Yuan Zhu

IPC: H04L5/12 ,  H04L5/10 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04W80/08 ,  H04L1/00

Abstract: Technology for a user equipment (UE) operable to decode a resource mapping pattern of a phase tracking reference signal (PT-RS) received from a base station in a wireless network is disclosed. The UE can decode control signaling received in a downlink from the base station. The control signaling can indicate a resource mapping pattern for a PT-RS. The UE can identify the resource mapping pattern for the PT-RS based on the control signaling received from the base station. The UE can encode one or more PT-RS for transmission to the base station in an uplink in accordance with the resource mapping pattern for the PT-RS.