公开(公告)号：US11917424B2

公开(公告)日：2024-02-27

申请号：US17437540

申请日：2020-09-16

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Huaning Niu ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang

IPC: H04W16/28 ,  H04W52/24 ,  H04L5/00

CPC classification number: H04W16/28 ,  H04L5/0051 ,  H04L5/0053 ,  H04W52/242

Abstract: This disclosure relates to techniques for signaling a quasi-colocation (QCL) update in a wireless communication system. A network or base station may indicate to a UE to change a spatial relationship for transmission/reception. The base station may provide aperiodic reference signals for the UE to use in beam tracking according to the new spatial relationship. Optionally, the base station may also provide aperiodic reference signals for time, frequency, and/or phase tracking. Thus, the network may configure the UE to change to the new spatial relationship and use the aperiodic reference signals to quickly complete initial tracking operations.

公开(公告)号：US11910320B2

公开(公告)日：2024-02-20

申请号：US17446817

申请日：2021-09-02

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Huaning Niu ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Wei Zeng ,  Yushu Zhang

IPC: H04W72/12 ,  H04W52/02 ,  H04B7/06 ,  H04W72/1263 ,  H04W72/54

CPC classification number: H04W52/0232 ,  H04B7/0626 ,  H04W52/0216 ,  H04W72/1263 ,  H04W72/54

Abstract: A user equipment (UE) is configured to report channel state information (CSI). The UE receives CSI configuration information corresponding to downlink new radio (NR) traffic with non-integer periodicity, wherein the CSI configuration information includes one of CSI measurement configuration information, CSI reporting configuration information or CSI measurement configuration information and CSI reporting configuration information, receives CSI measurement resources and reports CSI feedback to a network.

公开(公告)号：US20240057107A1

公开(公告)日：2024-02-15

申请号：US17765478

申请日：2021-04-05

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Hong He ,  Chunxuan Ye ,  Huaning Niu ,  Jie Cui ,  Wei Zhang

IPC: H04W72/232 ,  H04W72/12

CPC classification number: H04W72/232 ,  H04W72/12

Abstract: Techniques described herein may include a special scheduling cell (sSCell) provided for dynamic spectrum sharing (DSS). The sSCell may schedule a primary cell of a master cell group (MCG) or a primary cell of a secondary cell group (SCG). The primary cell may be referred to as a special cell or SpCell. The sSCell may be activated and/or deactivated, enter in or exit from a state of dormancy, and radio link monitoring (RLM), beam failure recovery (BFR), and cell grouping parameters may be provided. Techniques described herein include configuring a UE-specific search space (USS) with non-fallback downlink control information (DCI), USS with fallback DCI, and overall search space for DSS enhancement.

公开(公告)号：US20240057083A1

公开(公告)日：2024-02-15

申请号：US18476530

申请日：2023-09-28

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Huaning Niu ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Wei Zeng ,  Weidong Yang

IPC: H04W72/1273 ,  H04W72/54 ,  H04L5/00 ,  H04W72/232

CPC classification number: H04W72/1273 ,  H04W72/54 ,  H04L5/0051 ,  H04W72/232

Abstract: Systems and methods provide channel state information (CSI) measurement based on measuring a demodulation reference signal (DMRS) for a physical downlink shared channel (PDSCH) transmission. A UE may determine the DMRS for the PDSCH transmission with frequency hopping, and measure the DMRS for the PDSCH transmission to determine a CSI measurement. The UE may then report the CSI measurement to a base station.

公开(公告)号：US20240057002A1

公开(公告)日：2024-02-15

申请号：US17765463

申请日：2021-04-02

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Wei Zeng ,  Hong He ,  Huaning Niu ,  Weidong Yang ,  Oghenekome Oteri ,  Sigen Ye ,  Chunhai Yao ,  Chunxuan Ye

IPC: H04W56/00 ,  H04W72/12 ,  H04W72/232

CPC classification number: H04W56/0045 ,  H04W72/12 ,  H04W72/232 ,  H04W84/16

Abstract: Apparatus and methods are provided to enhance communications for NTN. In some aspects, a base station (BS) comprises a processor configured to schedule an uplink transmission in response to an uplink transmission request from a user equipment (UE) using one or more subframes ranging from a first uplink subframe to a last uplink subframe. The processor is further configured to determine or receive a timing advance (TA) indicating amount of subframes transmitted during a time delay between the UE and the BS and schedule a downlink transmission aligned with the uplink transmission. The downlink transmission is blocked from subframes ranging from TA plus one or more subframes ahead of the first uplink subframe to TA minus one or more subframes ahead of the last uplink subframe. The processor is further configured to transmit and receive, via a non-terrestrial equipment, the uplink and the downlink.

公开(公告)号：US20240056140A1

公开(公告)日：2024-02-15

申请号：US18447388

申请日：2023-08-10

Applicant: APPLE INC.

Inventor： Haitong Sun ,  Chunxuan Ye ,  Dawei Zhang ,  Huaning Niu ,  Ankit Bhamri ,  Wei Zeng ,  Hong He ,  Weidong Yang

IPC: H04B7/0456

CPC classification number: H04B7/046

Abstract: Apparatus and methods are provided for CSI enhancement for multi-TRP coherent joint transmission. A user equipment (UE) receives signals from a plurality of transmission and reception points (TRPs). The UE determines, based on the signals, multiple TRP (multi-TRP) coherent joint transmission (CJT) channel state information (CSI) report information for a codebook based on a spatial basis selection matrix, a combination coefficient matrix, and a frequency basis selection matrix. The spatial basis selection matrix is layer common, polarization common, and TRP independent. The UE reports, to one or more of the plurality of TRPs, the multi-TRP CJT CSI report information.

公开(公告)号：US11902203B2

公开(公告)日：2024-02-13

申请号：US17441650

申请日：2021-04-03

Applicant: APPLE INC.

Inventor： Haitong Sun ,  Chunxuan Ye ,  Dawei Zhang ,  Hong He ,  Huaning Niu ,  Jie Cui ,  Oghenekome Oteri ,  Seyed Ali Akbar Fakoorian ,  Wei Zeng ,  Yushu Zhang

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0094

Abstract: Provided is a method for a user equipment (UE). The UE obtains, from a network device, a first configuration information. The first configuration information indicates a first resource set for an aperiodic Sounding Reference Signal (AP-SRS). The first resource set for the AP-SRS includes a first list of slot offsets. The UE decodes a second configuration information from the network device. The second configuration information indicates a reference slot and a first slot offset of the first list of slot offsets. The UE generates the AP-SRS for transmission to the network device based on the reference slot and the first slot offset.

公开(公告)号：US11895637B2

公开(公告)日：2024-02-06

申请号：US17593588

申请日：2020-10-02

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Chunxuan Ye ,  Dawei Zhang ,  Hong He ,  Huaning Niu ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yeong-Sun Hwang ,  Yushu Zhang

IPC: H04W72/04 ,  H04W72/044 ,  H04B7/0408 ,  H04L5/00 ,  H04W16/28

CPC classification number: H04W72/046 ,  H04B7/0408 ,  H04L5/0035 ,  H04L5/0048 ,  H04W16/28

Abstract: A cell performs beam management operations for a user equipment (UE). The cell transmits a first group of multiple reference signals via a first transmission reception point (TRP) to a user equipment (UE), transmits a second group of multiple reference signals via a second different TRP to the UE, receives an indication that the UE has selected a first beam associated with one of the multiple reference signals of the first group and a second beam associated with one of the multiple reference signals of the second group and transmits downlink data to the UE using the first beam and the second beam.

公开(公告)号：US20240040606A1

公开(公告)日：2024-02-01

申请号：US18482702

申请日：2023-10-06

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Huaning Niu ,  Hong He ,  Wei Zeng ,  Chunxuan Ye ,  Oghenekome Oteri ,  Sigen Ye ,  Dawei Zhang ,  Chunhai Yao ,  Jie Cui ,  Yang Tang

IPC: H04W72/542 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/542 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/23

Abstract: A cellular base station (BS) which transmits more flexible downlink control information (DCI) to the UE, and a UE capable of receiving and processing a received DCI message. The DCI message may have a DCI format of 0_1 or 0_2 and further may comprise an UL-SCH set to 0, a CSI request field of all 0s and an SRS request field having a nonzero value. The DCI message may indicate to the UE that the UE should: 1) transmit an aperiodic SRS corresponding to SRS request; and 2) that the UE should not transmit on the PUSCH. The DCI may include existing fields that specify either a slot offset or beam information useable when transmitting the aperiodic SRS. The base station may also generate a DCI message with an SRS trigger that is targeted to a plurality of UEs in a group, or a plurality of groups of UEs, for greater efficiency.

公开(公告)号：US20240032030A1

公开(公告)日：2024-01-25

申请号：US17593406

申请日：2021-08-05

Applicant: APPLE INC.

Inventor： Oghenekome Oteri ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Hong He ,  Huaning Niu ,  Seyed Ali Akbar Fakoorian ,  Sigen Ye ,  Wei Zeng ,  Weidong Yang ,  Yushu Zhang

IPC: H04W72/1273 ,  H04W72/0446 ,  H04W72/232 ,  H04L1/1812

CPC classification number: H04W72/1273 ,  H04W72/0446 ,  H04W72/232 ,  H04L1/1812

Abstract: Systems and methods for using hybrid automatic repeat request acknowledgement (HARQ-ACK) codebooks to as part of acknowledgement/negative acknowledgement (ACK/NACK) signaling regarding multiple physical downlink shared channel (PDSCH) transmissions (also termed “multi-PDSCH”) scheduled by a single downlink control information (DCI) corresponding to multiple candidate PDSCH monitoring occasions are discussed herein. Rate matching indicators for one, multiple, or all of the PDSCHs of a scheduled multi-PDSCH are discussed. Effects of invalid symbol signaling, where one or more resources corresponding to a candidate PDSCH monitoring occasion corresponding to the DCI has been indicated for uplink (UL) use or not for DL use by a base station, are discussed. Effects of a bandwidth part change (in UL or downlink (DL)) occurring near or during the DCI, the multi-PDSCH, and a physical uplink control channel (PUCCH) containing the ACK/NACK signaling (e.g., containing or corresponding to all or part of the HARQ-ACK codebook) are discussed.