公开(公告)号：US11570649B2

公开(公告)日：2023-01-31

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: H04B17/24 ,  H04B17/309 ,  H04B17/382 ,  H04W24/10 ,  H04W36/00 ,  H04W56/00 ,  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.

公开(公告)号：US11483881B2

公开(公告)日：2022-10-25

申请号：US17154206

申请日：2021-01-21

Applicant: Apple Inc.

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

IPC: H04W76/11 ,  H04W72/04 ,  H04B17/318 ,  H04W24/10 ,  H04W56/00 ,  H04L5/00 ,  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：US11375524B2

公开(公告)日：2022-06-28

申请号：US16462877

申请日：2018-08-01

Applicant: APPLE INC.

Inventor： Yuhan Zhou ,  Jie Cui ,  Yang Tang ,  Hong He

IPC: H04W72/12 ,  H04W72/04

Abstract: Systems and methods are provided for handling different timing advance (TA) adjustment delays corresponding to different transmission time intervals (TTIs) from different serving cells under carrier aggregation or dual connectivity. A user equipment (UE) selects and implements one TA adjustment delay even if two or more serving cells transmit with different TTIs. In one embodiment, the UE uses a predetermined TA adjustment delay for each of a plurality of TA commands received from serving cells with different TTI lengths. In another embodiment, the UE uses a TA adjustment delay that is a maximum value of the TA adjustment delays for the TTIs from the different serving cells.

公开(公告)号：US11129057B2

公开(公告)日：2021-09-21

申请号：US16417992

申请日：2019-05-21

Applicant: Apple Inc.

Inventor： Andrey Chervyakov ,  Rui Huang ,  Yang Tang ,  Jie Cui ,  Yuhan Zhou

IPC: H04W28/20 ,  H04W72/04 ,  H04W76/27 ,  H04L1/00

Abstract: User equipment (UE) includes processing circuitry coupled to memory. To configure the UE for active bandwidth part (BWP) switching, the processing circuitry is to decode RRC signaling configuring a plurality of BWPs for the UE. The RRC signaling further includes an indicator for an initial BWP of the plurality of BWPs for initial use by the UE as an active BWP. DCI received on a PDCCH is decoded, which includes a BWP indicator for switching the active BWP from the initial BWP to another BWP of the plurality of BWPs. RF and baseband parameters to switch the active BWP from the initial BWP to the another BWP are reconfigured. Reconfiguring the RF and baseband parameters cause an interruption of one or more slots of a serving cell of the UE. A starting time of the interruption is within a time duration of a BWP switching delay supported by the UE.