公开(公告)号：US20240196246A1

公开(公告)日：2024-06-13

申请号：US17904336

申请日：2021-09-24

Applicant: APPLE INC.

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

IPC: H04W24/10 ,  H04W24/08

CPC classification number: H04W24/10 ,  H04W24/08

Abstract: Apparatuses, systems, and methods for NCSG-based measurement on deactivated serving cells. In a wireless communication system, a wireless device can acquire a measurement gap (MG) configuration scheduling measurement operation for at least one deactivated serving cell based on network-controlled small gap (NCSG), and perform the measurement operation based on the network-controlled small gap (NCSG) in accordance with the measurement gap configuration

公开(公告)号：US20240179758A1

公开(公告)日：2024-05-30

申请号：US17756931

申请日：2021-07-16

Applicant: APPLE INC.

Inventor： Jie Cui ,  Qiming Li ,  Dawei Zhang ,  Hong HE ,  Hongbo YAN ,  Huaning NIU ,  Manasa RAGHAVAN ,  Shengshan CUI ,  Xiang CHEN ,  Yang TANG

IPC: H04W74/0838

CPC classification number: H04W74/0838

Abstract: Systems and methods for determining a timing of a random access channel (RACH) occasion (RO) used to transmit a contention free random access (CFRA) preamble triggered by the receipt of an physical downlink control channel (PDCCH) order in a PDCCH are disclosed herein. A user equipment (UE) receives the PDCCH order and determines a timing offset value between the RO and a signal (e.g., a synchronization signal block (SSB), the PDCCH, a reference signal, etc.) to be used as a timing source. The UE also determines the arrival time of the signal to be used at the timing source. The UE then determines a time of the RO (during which the CFRA preamble will be transmitted) according to the arrival time and the timing offset value. Timing advance (TA) value(s) may also be accounted for as part of such a determination.

公开(公告)号：US20240178962A1

公开(公告)日：2024-05-30

申请号：US17773660

申请日：2021-08-06

Applicant: Apple Inc.

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

IPC: H04L5/00

CPC classification number: H04L5/005 ,  H04L5/0094

Abstract: A user equipment (UE) may support concurrent synchronization signal block (SSB) inter-frequency measurement without a measurement gap (MG). The UE may also, or alternatively, support concurrent SSB inter-frequency measurement in intra-band scenarios (e.g., where a target inter-frequency cell and serving cell are on the same band) and/or inter-band scenarios (e.g., where a target inter-frequency cell and serving cell are on the same band). The UE may report concurrent SSB based inter-frequency measurement as a NEEDFORGAP information element (IE), which may include one or more of a variety of parameters regarding UE measurement capabilities. Scheduling restrictions (e.g., restrictions to downlink and uplink communications) are also enabled based on UE measurement capabilities, including scheduling restriction for frequency range 1 (FR1), frequency range 2 (FR2), and cross frequency range scenarios.

公开(公告)号：US20240155696A1

公开(公告)日：2024-05-09

申请号：US17775931

申请日：2021-08-05

Applicant: Apple Inc.

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

IPC: H04W74/0838

CPC classification number: H04W74/0838

Abstract: A user equipment (UE), baseband processor or other network device (e.g., base station, next generation NodeB, etc.) can operate to configure a hand over (HO) or a primary secondary cell (PSCell) addition based on a channel state information reference signal (CSI-RS) based contention free random access (CFRA) procedure. A CSI-RS rough timing of a CSI-RS position can be determined based on a synchronization signal block (SSB) associated with a CSI-RS or a serving cell timing. A CFRA transmit timing can be determined based on the CSI-RS rough timing or a CSI-RS fine timing that is derived from a timing and frequency (T/F) tracking operation on the CSI-RS. Reference signal receive power (RSRP) measurement(s) can be made on the CSI-RS for performing the CSI-RS based CFRA procedure with transmissions according to the CSI-RS transmit timing of the CSI-RS that satisfies an RSRP threshold.

公开(公告)号：US11963058B2

公开(公告)日：2024-04-16

申请号：US17438179

申请日：2021-05-10

Applicant: Apple Inc.

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

IPC: H04W36/18 ,  H04W36/00

CPC classification number: H04W36/18 ,  H04W36/00725

Abstract: Apparatuses, systems, and methods for performing dual active protocol stack handovers in a frequency range above 24 GHz. A UE may transmit an indication to a base station indicating a dual active protocol stack (DAPS) handover capability of the UE corresponding to a frequency range (FR) above 24 GHz. The UE may receive, from a target cell of the one or more cells, a command to perform a DAPS handover from a source cell to the target cell. While performing the DAPS handover and maintaining a data connection with the source cell, the UE may perform measurements on the target cell followed by a physical random access channel (PRACH) procedure. The UE may then receive a source cell release command from the target cell and release the data connection with the source cell.

公开(公告)号：US20240107388A1

公开(公告)日：2024-03-28

申请号：US17764617

申请日：2021-04-02

Applicant: Apple Inc.

Inventor： Qiming Li ,  Yushu Zhang ,  Chunhai Yao ,  Fangli Xu ,  Yuqin Chen ,  Dawei Zhang ,  Jie Cui ,  Manasa Raghavan ,  Xiang Chen ,  Huaning Niu ,  Yang Tang

IPC: H04W36/00 ,  H04W56/00 ,  H04W72/231 ,  H04W74/0833

CPC classification number: H04W36/0061 ,  H04W56/0045 ,  H04W72/231 ,  H04W74/0833

Abstract: Apparatuses, systems, and methods for determining timing advance in L1/L2 inter-cell mobility. A user equipment (UE) comprises 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. The processor is configured to receive a Time advance (TA) indicator together with a handover command from a source base station in a source coverage, wherein the TA indicator comprises information for determining a TA used for an uplink transmission with a target base station in a target coverage, the handover command is a Layer 1 handover command or a Layer 2 handover command, and the source coverage and the target coverage are identified by different Physical Cell identifiers; and in response to the handover command, determine the TA used for the uplink transmission with the target base station based on the information.

公开(公告)号：US11930460B2

公开(公告)日：2024-03-12

申请号：US17593224

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: H04W56/00 ,  H04W24/10

CPC classification number: H04W56/001 ,  H04W24/10

Abstract: Provided is a method for a user equipment (UE), comprising performing, based on acquired information, in at least one of an idle mode and an inactive mode, at least one of an intra-frequency neighbor cell measurement and an inter-frequency neighbor cell measurement. The acquired information comprises at least one of a group of a periodicity of synchronization signal and physical broadcast channel block (SSB)-based measurement timing configuration (SMTC) and a periodicity of SMTC2-long periodicity (SMTC2-LP) and a physical cell identifier (PCI) list of SMTC2-LP.

公开(公告)号：US20240057166A1

公开(公告)日：2024-02-15

申请号：US17766537

申请日：2021-05-08

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Jie Cui ,  Qiming Li ,  Wei Zeng ,  Yushu Zhang

IPC: H04W74/08 ,  H04B7/06

CPC classification number: H04W74/0833 ,  H04B7/0639

Abstract: Techniques described herein involve the use of quasi-co-location (QCL) capabilities and spatial relation assumption to enable a UE to designate a single beam for connections with a base station during a physical random access channel (PRACH) procedure. Once the PRACH procedure is complete, the beam may be reset after a pre-determined duration, which may account for decoding latency, or maintained until additional transmission configuration indication (TCI) is received. Also addressed are scenarios involving multiple transmission reception points (TRPs) and switching between beam management schemes based on one or more factors including device capabilities.

公开(公告)号：US20240007892A1

公开(公告)日：2024-01-04

申请号：US18369097

申请日：2023-09-15

Applicant: Apple Inc.

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

IPC: H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04L5/0051

Abstract: Disclosed are methods, systems, apparatus, and computer programs for a coordination mechanism between a network and a user equipment (UE) that is configured to perform cross-link interference (CLI) measurements. In one aspect, a method includes generating a message that indicates a capability of a user equipment (UE) whether to support simultaneous reception of at least one signal associated with cross-link interference (CLI) measurement and at least one signal associated with a serving cell or a neighbor cell of the UE. The method further includes transmitting the message to an access node (AN).

公开(公告)号：US11856438B2

公开(公告)日：2023-12-26

申请号：US17593279

申请日：2021-01-13

Applicant: Apple Inc.

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

IPC: H04W24/10 ,  H04W36/00

CPC classification number: H04W24/10

Abstract: A user equipment (UE) is configured to establish a network connection including a new radio (NR)-NR dual connectivity band combination wherein a primary cell (PCell) of a primary cell group (PCG) and a primary secondary cell (PSCell) of a secondary cell group (SCG) both operate on frequency range 1 (FR1) and wherein at least one cell of either the PCG or the SCG operates on frequency range 2 (FR2). The UE receives a measurement gap timing advance parameter, selects one subframe from multiple serving cell subframes and determines a starting point for a configured per-frequency range (FR) measurement gap based on the measurement gap timing advance parameter and the selected subframe.