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公开(公告)号：US20240187938A1
公开(公告)日：2024-06-06
申请号：US18507243
申请日：2023-11-13
Applicant: Apple Inc.
Inventor： Jie Cui , Fangli Xu , Chunxuan Ye , Yang Tang , Hong He , Qiming Li , Yuqin Chen , Dawei Zhang
CPC classification number: H04W36/0061 , H04W56/0015 , H04W84/06
Abstract: Aspects are described for a user equipment (UE) comprising a transceiver configured to enable wireless communication with a serving cell and a target cell and a processor communicatively coupled to the transceiver. The processor is configured to receive a handover command from the serving cell. The handover command comprises an epoch index and ephemeris information of the target cell. The processor is further configured to determine an epoch time of the target cell based on the epoch index and perform time synchronization with the target cell using the epoch time and the ephemeris information.
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公开(公告)号：US11997591B2
公开(公告)日：2024-05-28
申请号：US17593566
申请日：2020-05-15
Applicant: APPLE INC.
Inventor： Hong He , Chunhai Yao , Chunxuan Ye , Dawei Zhang , Haitong Sun , Jie Cui , Oghenekome Oteri , Sigen Ye , Wei Zeng , Weidong Yang , Yang Tang , Yushu Zhang
IPC: H04W16/14 , H04W48/16 , H04W72/0453
CPC classification number: H04W48/16 , H04W16/14 , H04W72/0453
Abstract: Disclosed are techniques for differentiating between licensed and unlicensed bands in a common portion of frequency spectrum to facilitate initial access in a fifth generation (5G) new radio (NR) wireless communication system having an NR node. The techniques include an NR generating and UE processing frequency configuration information indicating whether the common portion of frequency spectrum is allocated as a licensed band or an unlicensed band to enable a determination that the frequency spectrum is configured as the licensed band or unlicensed band and thereby facilitate initial access.
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公开(公告)号：US20240172147A1
公开(公告)日：2024-05-23
申请号：US18534181
申请日：2023-12-08
Applicant: APPLE INC.
Inventor： Yang Tang , Dae Won Lee , Prerana Rane , Bishwarup Mondal , Jiwoo Kim , Yongjun Kwak , Seunghee Han
CPC classification number: H04W56/001 , H04L27/26025 , H04L27/2607
Abstract: Systems and methods for determining channel raster(s) and synchronization signal raster(s) for New Radio (NR) unlicensed spectrum are disclosed herein. For each of a plurality of data objects an NR channel raster position is determined using Absolute Radio Frequency Channel Number (NR-ARFCN) numbers. For each corresponding NR channel, Global Synchronization Channel Numbers (GSCNs), a number of Physical Resource Blocks (PRBs) based on channel subcarrier spacing (SCS), NR channel raster position placement, channel edges, synchronization signal and physical broadcast channel (SSB) edges, and an SSB raster position are calculated. The plurality of data objects may then be down selected based on e.g., corresponding Long Term Evolution (LTE) channel raster positions and/or entries of a second plurality of data objects calculated for NR channels that use a second SCS.
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公开(公告)号：US11979759B2
公开(公告)日：2024-05-07
申请号：US17439202
申请日：2020-03-27
Applicant: Apple Inc.
Inventor： Qiming Li , Yuhan Zhou , Jie Cui , Yang Tang , Shuang Tian
Abstract: In a communication system comprising user equipment (UE) and a radio access network (RAN) comprising a plurality of cells is configured for receiving, by the UE, a radio resource control (RRC) information element (IE) indicating a high speed scenario (HST); and monitoring, by the UE in response to receiving the RRC IE indicating HST, a first number of frequency carriers that is reduced relative to a second number of frequency carriers monitored by the UE during a non-HST.
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公开(公告)号：US11962520B2
公开(公告)日：2024-04-16
申请号：US17593735
申请日：2020-05-14
Applicant: Apple Inc.
Inventor： Weidong Yang , Oghenekome Oteri , Haitong Sun , Chunhai Yao , Yushu Zhang , Dawei Zhang , Chunxuan Ye , Wei Zeng , Hong He , Sigen Ye , Jie Cui , Yang Tang
IPC: H04L5/00
CPC classification number: H04L5/0007 , H04L5/0048
Abstract: Embodiments disclosed relate to apparatuses, systems, and methods for improved handling of phase noise (PN) in millimeter wave (MMW or mmWave) communications in a wireless communication system, such as 5G NR. When severe phase noise is present in a communication link, the link performance can be substantially degraded. Thus, it would be desirable to utilize techniques to compensate for phase noise in mmWave communications. In Rel-15, a Phase Tracking Reference Signal (PT-RS or PTRS) was specified for both downlink and uplink communications, specifically for Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) and Discrete Fourier Transform spread Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). However, prior art approaches to PTRS using block-based pilot allocation schemes required complicated receiver processing. Thus, the techniques disclosed herein attempt to embed one or multiple bands with DFT-S-OFDM PTRS design in the data allocation bandwidth of an OFDM transmission to improve handling of PN at sub-OFDM symbol time intervals.
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Patent Agency Ranking
公开(公告)号：US20240073748A1
公开(公告)日：2024-02-29
申请号：US17764586
申请日：2021-04-02
Applicant: Apple Inc.
Inventor： Qiming Li , Jie Cui , Yang Tang , Fangli Xu , Yuqin Chen , Yushu Zhang , Chunhai Yao , Dawei Zhang , Manasa Raghavan , Xiang Chen
CPC classification number: H04W36/0061 , H04W36/0058 , H04W36/08
Abstract: A method for a network element is provided. The method comprises: encoding a message for transmission to a user equipment (UE) including neighbor cell configuration information that includes a list of a plurality of neighbor cell groups, wherein each of the plurality of neighbor cell groups is associated with a specific cell; and transmitting the message to the UE.
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公开(公告)号：US11917652B2
公开(公告)日：2024-02-27
申请号：US17439511
申请日：2021-09-14
Applicant: Apple Inc.
Inventor： Jie Cui , Qiming Li , Yang Tang , Manasa Raghavan , Huaning Niu , Hong He , Weidong Yang , Chunxuan Ye , Dawei Zhang
Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide SCell activation. In one example, a UE may support carrier aggregation in a high speed mode, such FR1 CA in HST. Serving cells can be particularly configured for the carrier aggregation based on the UE's capability to support carrier aggregation in the high speed mode. Additionally or alternatively, an SCell activation procedure can be performed based on this capability.
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公开(公告)号：US20240032128A1
公开(公告)日：2024-01-25
申请号：US17441252
申请日：2021-06-07
Applicant: Apple Inc.
Inventor： Jie Cui , Qiming Li , Dawei Zhang , Hong He , Huaning Niu , Manasa Raghavan , Xiang Chen , Yang Tang
IPC: H04W76/19 , H04B7/06 , H04L5/00 , H04W72/542
CPC classification number: H04W76/19 , H04B7/0695 , H04L5/0051 , H04W72/542
Abstract: The present application relates to devices and components including apparatus, systems, and methods for harmonized link monitoring and link recovery.
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公开(公告)号：US20240032095A1
公开(公告)日：2024-01-25
申请号：US18353751
申请日：2023-07-17
Applicant: Apple Inc.
Inventor： Xiang Chen , Dawei Zhang , Haitong Sun , Hong He , Huaning Niu , Jie Cui , Manasa Raghavan , Naveen Kumar R. Palle Venkata , Qiming Li , Yang Tang
CPC classification number: H04W74/0808 , H04W48/14
Abstract: The present application relates to devices and components including apparatus, systems, and methods for listen-before-talk indications in high-frequency networks.
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公开(公告)号：US20240031848A1
公开(公告)日：2024-01-25
申请号：US17439598
申请日：2020-10-22
Applicant: Apple Inc.
Inventor： Jie Cui , Qiming Li , Manasa Raghavan , Huaning Niu , Yang Tang , Dawei Zhang , Hong He
CPC classification number: H04W24/10 , H04W56/001 , H04W76/30 , H04L5/001
Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide intra-frequency measurement enhancement in new radio high speed train.
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