公开(公告)号：US20220200675A1

公开(公告)日：2022-06-23

申请号：US17599930

申请日：2020-03-30

Applicant: Apple Inc.

Inventor： Manasa RAGHAVAN ,  Jie CUI ,  Yushu ZHANG ,  Andrey CHERVYAKOV ,  Yang TANG

IPC: H04B7/06

Abstract: Techniques for changing a Transmission Configuration Indication (TCI) state by a user equipment (UE) operating in a wireless communications system are provided. The UE receives a first message including a TCI state change command from a network and determines, based on the first message, whether a time offset/frequency offset (TO/FO) and a reception (Rx) beam for a new TCI state are known by the UE. Based on the determination, the UE calculates a time delay of the UE to be prepared to receive a reference signal with the new TCI state, generates a second message indicating the time delay of the UE for the new TCI state, and transmits the second message to the network.

公开(公告)号：US20220191720A1

公开(公告)日：2022-06-16

申请号：US17593108

申请日：2020-12-15

Applicant: APPLE INC.

Inventor： Jie CUI ,  Hong HE ,  Dawei ZHANG ,  Chunhai YAO ,  Chunxuan YE ,  Haitong SUN ,  Weidong YANG ,  Wei ZENG ,  Yuchul KIM ,  Yushu ZHANG ,  Zhibin WU ,  Yang TANG

IPC: H04W24/08 ,  H04L5/00

Abstract: Methods and apparatus are provided for searcher resource coordination between NR mobility based measurement and LTE (E-UTRA) PRS based measurement without measurement gap in EN-DC mode or NE-DC mode. Other embodiments are also provided for searcher resource coordination between NR PRS measurement and LTE (E-UTRA) PRS measurement without measurement gap in EN-DC mode or NE-DC mode. Further embodiments provide for searcher resource coordination between NR or LTE (E-UTRA) PRS measurement and NR mobility measurement without measurement gap in EN-DC mode or NE-DC mode.

公开(公告)号：US20220132349A1

公开(公告)日：2022-04-28

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 ,  H04B17/318 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0417

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：US20220124723A1

公开(公告)日：2022-04-21

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: H04W72/08

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：US20210344433A1

公开(公告)日：2021-11-04

申请号：US17284231

申请日：2019-10-09

Applicant: Apple Inc.

Inventor： Qiming LI ,  Hua LI ,  Manasa RAGHAVAN ,  Jie CUI ,  Yang TANG

IPC: H04B17/373 ,  H04L5/00 ,  H04B7/06 ,  H04L12/26

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：US20210297970A1

公开(公告)日：2021-09-23

申请号：US17267419

申请日：2019-08-08

Applicant: Apple Inc.

Inventor： Yang TANG ,  Jie CUI ,  Rui HUANG ,  Hua LI ,  Yuhan ZHOU

IPC: H04W56/00 ,  H04W24/10 ,  H04B17/24

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.

公开(公告)号：US20210281295A1

公开(公告)日：2021-09-09

申请号：US17259468

申请日：2019-08-09

Applicant: Apple Inc.

Inventor： Hua LI ,  Jie CUI ,  Yang TANG ,  Yushu ZHANG ,  Manasa Ragfhavan

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

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：US20210167871A1

公开(公告)日：2021-06-03

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: H04B17/24 ,  H04B17/318 ,  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.