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：US20240334321A1

公开(公告)日：2024-10-03

申请号：US18588969

申请日：2024-02-27

Applicant: Apple Inc.

Inventor： Jie CUI ,  Yang Tang ,  Qiming Li ,  Haitong Sun ,  Dawei Zhang ,  Chunxuan Ye

IPC: H04W48/20 ,  H04W48/16 ,  H04W64/00

CPC classification number: H04W48/20 ,  H04W48/16 ,  H04W64/00

Abstract: Some aspects of this disclosure relate to apparatuses and methods for apparatuses and methods for providing continuous communication services for a user equipment (UE) connected to a non-terrestrial network (NTN) and/or one or more satellites providing cellular coverage. The UE may receive a list of neighbor cells from a serving cell, which may be a satellite moving relative to the Earth and having a moving coverage area. After receiving the list of neighbor cells, the UE may sort the list to prioritize the neighbor cells. This sorting may be based on a calculated distance between the UE and each of the neighbor cells. The UE may sequentially perform a synchronization and measurement process with each of the neighbor cells or a subset of the neighbor cells based on the prioritization order. The UE may then establish communications with a target cell from the prioritized list to maintain continuity.

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.

公开(公告)号：US12009897B2

公开(公告)日：2024-06-11

申请号：US17593281

申请日：2021-01-06

Applicant: Apple Inc.

Inventor： Jie Cui ,  Yang Tang ,  Yihong Qi ,  Herbert R. Dawid ,  Panagiotis Botsinis ,  Dawei Zhang ,  Hong He ,  Manasa Raghavan ,  Qiming Li ,  Xiang Chen

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04B7/0652 ,  H04B7/0626 ,  H04L5/0051 ,  H04W24/10

Abstract: A user equipment (UE) may be configured to perform layer 1 (L1) measurement procedures and layer 3 (L3) measurement procedures. The UE configures a channel state information-reference signal (CSI-RS) layer 3 (L3) measurement window, identifies a collision between a layer 1 (L1) measurement operation and a L3 measurement operation and omits at least one L1 measurement in response to identifying the collision.

公开(公告)号：US20240179734A1

公开(公告)日：2024-05-30

申请号：US17773875

申请日：2021-09-24

Applicant: Apple Inc.

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

IPC: H04W72/541 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/541 ,  H04W72/0446 ,  H04W72/0453

Abstract: Techniques discussed herein can facilitate inter-cell interference mitigation. One example aspect is a user equipment (UE), configured to receive a network assistance indication associated with an interfering signal, where the interfering signal interferes with a physical downlink shared channel (PDSCH) transmission. A time resource allocation of the interfering signal is different than a time resource allocation of the PDSCH transmission. The UE is further configured to determine an interference and noise covariance estimation mechanism based on the network assistance indication then perform interference and noise covariance estimation based on the noise covariance estimation mechanism. The UE is further configured to perform mitigation of the interfering signal using a mitigation mechanism based on the interference and noise covariance estimation.

公开(公告)号：US20240163738A1

公开(公告)日：2024-05-16

申请号：US17777155

申请日：2021-08-05

Applicant: Apple Inc.

Inventor： Jie Cui ,  Dawei Zhang ,  Fangli Xu ,  Hong He ,  Huaning Niu ,  Manasa Raghavan ,  Qiming Li ,  Seyed Ali Akbar Fakoorian ,  Xiang Chen ,  Yang Tang

IPC: H04W36/00 ,  H04W36/08 ,  H04W76/20

CPC classification number: H04W36/0058 ,  H04W36/0069 ,  H04W36/08 ,  H04W76/20

Abstract: Apparatus and method are provided for a user equipment (UE) to perform measurement operations for a handover procedure including target NR Primary Secondary Cell (PSCell) change or addition. The measurements of a target PSCell are performed in accordance with a synchronization signal/physical broadcast channel (SS/PBCH) block measurement time configuration (SMTC) included in a measurement object received from a base station (BS). A source primary cell (PCell) is used for reference timing of the SMTC if the measurement object is configured by the source PCell on same frequency and subcarrier spacing of the target PSCell. A source PSCell is used for reference timing of the SMTC if the measurement object is configured by the source PSCell on same frequency and subcarrier spacing of the target PSCell.