公开(公告)号：US20240373468A1

公开(公告)日：2024-11-07

申请号：US18772020

申请日：2024-07-12

Applicant: Apple Inc.

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

IPC: H04W74/0808 ,  H04L5/00 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/53

Abstract: The present application relates to devices and components including apparatus, systems, and methods to address spatial collisions between physical downlink control channel and default physical downlink shared channel beams in wireless communication systems.

公开(公告)号：US20240373405A1

公开(公告)日：2024-11-07

申请号：US18767198

申请日：2024-07-09

Applicant: Apple Inc.

Inventor： Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Hong He ,  Haitong Sun ,  Weidong Yang ,  Oghenekome Oteri ,  Yuchul Kim ,  Yang Tang ,  Jie Cui

IPC: H04W72/02 ,  H04L1/08 ,  H04W72/0453 ,  H04W72/20

Abstract: Systems, methods, and circuitries are provided for performing sidelink communication. In one example, a user equipment (UE), includes a memory and one or more processors configured to, when executing instructions stored in the memory, cause the UE to determine a SCI stage 2 scrambling initialization value (Cinit) based on at least a portion of a physical sidelink control channel (PSCCH) cyclic redundancy check (CRC) code and a resource pool constant NCONST_RP, wherein NCONST_RP is configured for a resource pool allocated for sidelink communication by the UE; generate a scrambling sequence based on the SCI stage 2 Cinit; and transmit a SCI stage 2 to the second UE based on the scrambling sequence.

公开(公告)号：US12137467B2

公开(公告)日：2024-11-05

申请号：US17438498

申请日：2020-10-22

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Chunhai Yao ,  Dawei Zhang ,  Haijing Hu ,  Murtaza A. Shikari ,  Naveen Kumar R. Palle Venkata ,  Ralf Rossbach ,  Sarma V. Vangala ,  Sethuraman Gurumoorthy ,  Srinivasan Nimmala ,  Srirang A. Lovlekar ,  Sudeep Manithara Vamanan ,  Wei Zeng ,  Yuqin Chen ,  Zhibin Wu

IPC: H04W72/30

Abstract: Apparatuses, systems, and methods for enhancement of MBMS transmission reliability. A UE may receive PDCP PDUs via a PTM link from a network. The UE may determine to provide feedback regarding receipt of the PDCP PDUs, e.g., based, at least in part, on an occurrence of a triggering event. The triggering event may be configured by the network and may include the UE receiving a request for feedback from the network, the UE determining that at least one PDCP PDU is missing, the UE determining that a number of missing PDCP PDUs exceeds a threshold, and/or the UE determining that a PDCP reordering window is changing based on expiration of a PDCP reordering timer. The UE may transmit feedback associated with receipt of the PDCP PDUs. The feedback may include an indication of missing PDCP PDUs, e.g., such as an indication of a sequence number associated with missing PDCP PDUs.

公开(公告)号：US12137451B2

公开(公告)日：2024-11-05

申请号：US17441593

申请日：2021-01-15

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Dawei Zhang ,  Wei Zeng ,  Yushu Zhang ,  Jia Tang ,  Amir Farajidana ,  Wei Zhang

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

Abstract: Apparatuses, systems, and methods for providing downlink control for multi-TRP transmission. A network-side device may provide a downlink control information transmission to a wireless device scheduling downlink transmission to the wireless device from multiple transmission reception points. The downlink transmission may relate to Hybrid automatic repeat request process and/or system information transmission. And the downlink control information may include information about scheduling of HARQ processes from different TRPs, and/or information about scheduling of SI transmission from different TRPs. The wireless device may receive the downlink transmissions from the plurality of transmission reception points in accordance with the downlink control information.

公开(公告)号：US12132553B2

公开(公告)日：2024-10-29

申请号：US17916884

申请日：2020-04-08

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Jie Cui ,  Oghenekome Oteri ,  Wei Zeng ,  Weidong Yang ,  Yang Tang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04B7/02 ,  H04B7/06

CPC classification number: H04B7/0695 ,  H04B7/0691

Abstract: Apparatuses, systems, and methods for user equipment device (UE) uplink antenna panel selection. The UE may determine, based on at least one condition, to perform a beam switch from a current beam being used for communications with a base station. The UE may transmit, to the base station, an indication of an antenna panel status that may include an indication of a latency associated with the beam switch. The UE may receive, from the base station, an indication to switch to a target beam and to perform the switch, based on the indication, to the target beam. The indication of the antenna panel status may include a beam switching latency level for each beam in a beam report, a beam switch request that may indicate the target beam, and/or a beam switch request that may indicate that an antenna panel switch is to be applied by the UE.

公开(公告)号：US12132552B2

公开(公告)日：2024-10-29

申请号：US17893356

申请日：2022-08-23

Applicant: Apple Inc.

Inventor： Fangli Xu ,  Dawei Zhang ,  Haijing Hu ,  Yuqin Chen ,  Haitong Sun ,  Wei Zeng

IPC: H04B7/06 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/27 ,  H04W80/02 ,  H04W88/08

CPC classification number: H04B7/0695 ,  H04B7/0617 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/27 ,  H04W80/02 ,  H04W88/08

Abstract: This disclosure relates to performing beam failure recovery using a contention based random access procedure in a cellular communication system. A wireless device and a cellular base station may establish a cellular link. Beam configuration information indicating an active beam for downlink communications may be provided. The wireless device may detect beam failure for the active beam. The wireless device may perform a contention based random access procedure based at least in part on detecting beam failure for the active beam. An indication of the detected beam failure may be provided to the cellular base station by the wireless device as part of the contention based random access procedure.

公开(公告)号：US20240357438A1

公开(公告)日：2024-10-24

申请号：US18763288

申请日：2024-07-03

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Wei Zeng

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/30

CPC classification number: H04W36/0055 ,  H04W36/0058 ,  H04W36/0085 ,  H04W36/08 ,  H04W36/302

Abstract: Performing a UE-triggered lower layer-based handover may include performing measurements of source gNB CSI-RS samples associated with a source gNB. Measurements of target gNB CSI-RS samples associated with a target gNB may be performed, wherein the CSI-RS samples associated with the source gNB and the CSI-RS samples associated with the target gNB are transmitted in a burst structure. A subset of the source gNB CSI-RS samples and the target gNB CSI-RS samples may be filtered using a layer 1 or a layer 2 filter. A filtered result for each of the subset of source gNB CSI-RS samples and the subset of target gNB CSI-RS samples may be generated. Based on the generated filtered result for each of the subset of source gNB CSI-RS samples and the subset of target gNB CSI-RS samples, determining whether a handover from the source gNB to the target gNB is to occur.

公开(公告)号：US12127221B2

公开(公告)日：2024-10-22

申请号：US17439010

申请日：2020-10-15

Applicant: Apple Inc.

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

IPC: H04W72/30 ,  H04L1/08 ,  H04L5/00 ,  H04W72/21

CPC classification number: H04W72/30 ,  H04L1/08 ,  H04L5/0055 ,  H04W72/21

Abstract: This disclosure relates to apparatuses and methods for providing and managing reception feedback for multicast and broadcast services (MBS). A base station (BS) may select and communicate, to a group of user equipment devices (UEs), configuration parameters for MBS communications, such as an indication of an MBS retransmission procedure for an MBS service. The BS may also transmit, to the group of UEs, an MBS data communication. A first UE may receive the MBS data communication, but may determine that the received MBS data communication is corrupted. The first UE may respond by transmitting, to the BS, a negative-acknowledgement (NACK) message. The BS may retransmit the MBS data communication either as an MBS transmission or as a unicast transmission, based on the configuration parameters. The first UE may monitor the appropriate resources to receive the retransmitted MBS data communication, based on the configuration parameters.

公开(公告)号：US20240340654A1

公开(公告)日：2024-10-10

申请号：US18587073

申请日：2024-02-26

Applicant: Apple Inc.

Inventor： Huaning Niu ,  Dawei Zhang ,  Wei Zeng ,  Chunxuan Ye ,  Haitong Sun ,  Weidong Yang

IPC: H04W16/28 ,  H04B17/318 ,  H04W72/02 ,  H04W72/25

CPC classification number: H04W16/28 ,  H04B17/328 ,  H04W72/02 ,  H04W72/25

Abstract: A user equipment (UE), a base station, a baseband processor or other network device can operate to perform an inter-UE coordination (IUC) operation for a sidelink (SL) communication by processing an IUC message that comprises at least one of: receiving UE sensing results associated with directional sensing or beam alignment SL control channel/sidelink data channel transmission information. The SL communication can then be transmitted based on resources selected in resource selection from the IUC.

公开(公告)号：US12107786B2

公开(公告)日：2024-10-01

申请号：US17440103

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Dawei Zhang ,  Haitong Sun ,  Wei Zeng ,  Weidong Yang

IPC: H04L5/00 ,  H04L1/1867

CPC classification number: H04L5/0048 ,  H04L1/1896

Abstract: Some embodiments include an apparatus, method, and computer program product for tracking reference signal (TRS) support of high speed use cases of 5G communications in a single frequency network (SFN), where a user equipment (UE) can measure a Doppler offset of a combined signal from two or more transmission reception points (TRPs) of the 5G communications system. A 5G node B (gNB) node can transmit a periodic, semi-persistent (SP), or aperiodic TRS with high measurement density that the UE uses to measure a Doppler offset of a combined signal. For example, the gNB can: trigger the aperiodic TRS based on a downlink assignment; and/or use lower layer signaling to arrange to transmit a semi-persistent TRS or a periodic TRS with a reduced periodicity. In some embodiments, the gNB can measure the Doppler offset based on an uplink signal, and transmit a TRS based on a pre-compensated Doppler frequency.