公开(公告)号：US20250167952A1

公开(公告)日：2025-05-22

申请号：US18839313

申请日：2022-02-18

Applicant: APPLE INC.

Inventor： Huaning Niu ,  Yushu Zhang ,  Yang Tang ,  Jie Cui ,  Xiang Chen ,  Dawei Zhang ,  Manasa Raghavan ,  Qiming Li

IPC: H04L5/00 ,  H04B7/06 ,  H04B17/318

Abstract: Systems and methods provide Layer 1 reference signal received power (L1-RSRP) measurement and transmission configuration indication (TCI) state switching. A cellular communications network determines a plurality transmission reception points (TRPs) configured for high speed train (HST) communication using millimeter wave (mmWave) signals, and generates a synchronization signal block (SSB) index configuration for the plurality TRPs. The SSB index configuration uses non-adjacent SSB indexes between the plurality of TRPs. A user equipment (UE), in response to entering a HST mode, performs L1-RSRP measurement sharing for SSBs received from different TRPs. A scheduling restraint may be used for TCI state switching. Autonomous UL TA adjustment timing may also be used.

公开(公告)号：US20250158761A1

公开(公告)日：2025-05-15

申请号：US18836416

申请日：2022-02-11

Applicant: Apple Inc.

Inventor： Manasa Raghavan ,  Jie Cui ,  Yang Tang ,  Huaning Niu ,  Yushu Zhang ,  Xiang Chen ,  Qiming Li ,  Dawei Zhang

IPC: H04L5/00 ,  H04W72/231

Abstract: A user equipment (UE) is configured to communicate with a base station using a set of component carriers (CCs) configured for a carrier aggregation (CA) mode, in accord with a first common transmission configuration indication (TCI) identifier (ID) applied to the set of CCs. The UE is also configured to receive, from the base station, a command to switch from applying a first common TCI ID to the set of CCs to applying a second common TCI ID to the set of CCs; transmit, to the base station, an acknowledgement of the command to apply the second common TCI ID to the set of CCs; and transmit data to or receive data from the base station, using the set of CCs and in accord with the second common TCI ID, after an action delay including a first time period in which the acknowledgement is transmitted. The first time period is based on a smallest subcarrier spacing of the set of CCs.

公开(公告)号：US20250071812A1

公开(公告)日：2025-02-27

申请号：US18946319

申请日：2024-11-13

Applicant: Apple Inc.

Inventor： Jie Cui ,  Dawei Zhang ,  Hong He ,  Manasa Raghavan ,  Qiming Li ,  Xiang Chen ,  Yang Tang

IPC: H04W74/0808

Abstract: Apparatuses, systems, and methods for mitigation of listen before talk conflicts in the unlicensed spectrum. A wireless device may receive one or more synchronization signal blocks (SSBs) from a base station (BS) as part of a measurement procedure with listen before talk (LBT). The wireless device may determine one or more LBT failures associated with one or more receive beams of the wireless device. Furthermore, in response to determining the one or more LBT failures associated with the one or more receive beams of the wireless device, the wireless device may extend a measurement period for the one or more receive beams of the wireless device. The wireless device may then receive one or more additional SSBs on the one or more receive beams of the wireless device.

公开(公告)号：US20250038936A1

公开(公告)日：2025-01-30

申请号：US18757493

申请日：2024-06-27

Applicant: Apple Inc.

Inventor： Qiming Li ,  Xiang Chen ,  Yang Tang ,  Dawei Zhang ,  Yuexia Song ,  Jie Cui

IPC: H04L5/00

Abstract: The present application relates to devices and components, including apparatus, systems, and methods for performing bandwidth part (BWP) switching.

公开(公告)号：US12120564B2

公开(公告)日：2024-10-15

申请号：US17593413

申请日：2021-04-02

Applicant: APPLE INC.

Inventor： Jie Cui ,  Dawei Zhang ,  Hong He ,  Huaning Niu ,  Manasa Raghavan ,  Qiming Li ,  Xiang Chen ,  Yang Tang ,  Haitong Sun ,  Yushu Zhang

IPC: H04W36/00 ,  H04W74/0833

CPC classification number: H04W36/0077 ,  H04W36/0016 ,  H04W74/0833

Abstract: Devices, systems, and methods for Random Access Channel (RACH) configuration in Layer 1 (L1)/Layer 2 (L2) mobility. A user equipment (UE) may obtain a downlink (DL) Transmission Configuration Indicator (TCI) list from a first Transmission and Reception Point (TRP). The DL TCI list may include DL beam information, RACH Occasion (RO) information, and initial Bandwidth Part (BWP) information associated with each DL TCI of a plurality of DL TCIs related to the first TRP and multiple TRPs adjacent to the first TRP. The UE may receive a handover command from the first TRP via Downlink Control Information (DCI) in Li or Media Access Control (MAC) Control Element (CE) in L2. The handover command indicates a handover from the first TRP to a second TRP of the multiple TRPs for the UE, and includes a specified DL TCI related to the second TRP. The UE may determine RACH information related to the second TRP, based at least partly on the specified DL TCI related to the second TRP included in the handover command and the DL TCI list. The UE may then perform random access to the second TRP based on the RACH information related to the second TRP. The RACH information may include uplink (UL) beam information, RO information and Bandwidth Part (BWP) information for the UE to perform random access to the second TRP.

公开(公告)号：US12114189B2

公开(公告)日：2024-10-08

申请号：US17438172

申请日：2021-05-10

Applicant: Apple Inc.

Inventor： Qiming Li ,  Dawei Zhang ,  Jie Cui ,  Yang Tang ,  Manasa Raghavan ,  Huaning Niu ,  Xiang Chen

IPC: H04W24/08 ,  H04W72/0453

CPC classification number: H04W24/08 ,  H04W72/0453

Abstract: Aspects are presented herein of apparatuses, systems, and methods for measurement gap configuration. A cellular network may establish communication with a UE using a first and second cell. The cellular network may configure bandwidth parts (BWPs) for the first and second cell, including a first and second BWP for the first cell and a third and fourth BWP for the second cell. A measurement gap configuration that specifies when the UE is to use a first measurement gap pattern may be provided to the UE. At a first time, the cellular network may communicate with the UE using the first BWP for the first cell and the third BWP for the second cell, based on the first measurement gap pattern. At a second time, the cellular network may communicate with the UE using the second BWP for the first cell based on a modification of the first measurement gap pattern.

公开(公告)号：US12069716B2

公开(公告)日：2024-08-20

申请号：US17593183

申请日：2021-01-15

Applicant: APPLE INC.

Inventor： Jie Cui ,  Qiming Li ,  Yang Tang ,  Manasa Raghavan ,  Xiang Chen ,  Huaning Niu ,  Dawei Zhang ,  Hong He

IPC: H04W74/00 ,  H04L5/00 ,  H04W56/00 ,  H04W74/0833

CPC classification number: H04W74/002 ,  H04L5/0094 ,  H04W56/0045 ,  H04W74/0833

Abstract: Provided is a method for a user equipment (UE). The UE obtains a physical uplink control channel (PUCCH) secondary cell (SCell) activation command from a primary cell (PCell) or primary secondary-cell-group cell (PSCell). The PUCCH SCell activation command is used for an PUCCH SCell activation of a target PUCCH SCell for the UE. The UE performs PUCCH SCell activation operations associated with a valid timing advance (TA) and the PUCCH SCell activation command. TA is considered to be a valid TA when the TA meets a preset criterion. The UE generates a channel state information (CSI) report for transmission to at least one of the PCell, PSCell and the target PUCCH SCell. The CSI report indicates that the PUCCH SCell activation is completed.

公开(公告)号：US12063171B2

公开(公告)日：2024-08-13

申请号：US17441399

申请日：2021-01-15

Applicant: Apple Inc.

Inventor： Qiming Li ,  Dawei Zhang ,  Huaning Niu ,  Jie Cui ,  Manasa Raghavan ,  Xiang Chen ,  Yang Tang ,  Yushu Zhang

IPC: H04L5/00 ,  H04B7/024 ,  H04W52/04 ,  H04W52/36

CPC classification number: H04L5/0035 ,  H04W52/367

Abstract: Apparatuses, systems, and methods for providing downlink control for multi-TRP transmission. A wireless device, comprising: at least one antenna; at least one radio coupled to the at least one antenna; and a processor coupled to the at least one radio and configured to cause the wireless device to: determine a gap period is to be applied between a first uplink transmission to a cellular base station via a first transmission reception point (TRP) and a second uplink transmission to the cellular base station via a second TRP; and perform the first and second uplink transmissions consecutively with the gap period applied between them.

公开(公告)号：US12058573B2

公开(公告)日：2024-08-06

申请号：US17593182

申请日：2021-01-15

Applicant: APPLE INC.

Inventor： Jie Cui ,  Qiming Li ,  Yang Tang ,  Manasa Raghavan ,  Xiang Chen ,  Huaning Niu ,  Dawei Zhang ,  Hong He ,  Yushu Zhang ,  Haitong Sun

IPC: H04W36/00 ,  H04W36/08

CPC classification number: H04W36/0083 ,  H04W36/08

Abstract: Provided is a method for a user equipment (UE). The method includes obtaining a processing delay for handover (HO) with primary secondary cell (PSCell) and performing a procedure of the HO with PSCell based on the obtained processing delay for the HO with PSCell.

公开(公告)号：US12035364B2

公开(公告)日：2024-07-09

申请号：US17437784

申请日：2021-03-31

Applicant: Apple Inc.

Inventor： Xiang Chen ,  Dawei Zhang ,  Huaning Niu ,  Jie Cui ,  Manasa Raghavan ,  Qiming Li ,  Yang Tang

IPC: H04W74/0808

CPC classification number: H04W74/0808

Abstract: An apparatus may receive a media access control (MAC) control element (CE) from a base station (BS) indicating a secondary cell (SCell) to be activated in an unlicensed band. The apparatus may initiate a timer with an end value in response to receiving the MAC CE and may further adjust a radio-frequency (RF) chain from a first state to a second state corresponding to the SCell to be activated. The apparatus may determine, based on measurements of one or more synchronization signal blocks (SSBs) transmitted from the BS indicating one or more listen before talk (LBT) failures corresponding to the SCell, one or more failed SSB transmissions corresponding to the SCell. Accordingly, the apparatus may readjust, in response to expiry of the timer, the RF chain from the second state to the first state and receive one or more additional SSBs in the first state.