公开(公告)号：US12267131B2

公开(公告)日：2025-04-01

申请号：US17439292

申请日：2020-04-08

Applicant: Apple Inc. ,  Haitong Sun

Inventor： Haitong Sun ,  David Neumann ,  Dawei Zhang ,  Ghaith N. Hattab ,  Ismael Gutierrez Gonzalez ,  Wei Zeng ,  Yeong-Sun Hwang ,  Yushu Zhang

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W72/044

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing capability signaling design for 3rd Generation Partnership Project (3GPP) release 15 (Rel-15) and/or release 16 (Rel-16) multi-input multi-output (MIMO) enhancement. For example, systems and methods are provided implementing designs for New Radio (NR) MIMO channel state information (CSI) for a small bandwidth part (BWP) and/or a small number of subbands. For example, some aspects relate to a user equipment (UE) including a transceiver configured to communicate with a base station and a processor communicatively coupled to the transceiver. The processor receives, from the base station, a CSI reporting configuration message. The processor determines, using the CSI reporting configuration message, that a number of physical resource blocks (PRBs) of a BWP associated with the CSI reporting configuration message is less than a threshold number. The processor also generates and transmits a CSI report for the BWP.

公开(公告)号：US12207123B2

公开(公告)日：2025-01-21

申请号：US17868611

申请日：2022-07-19

Applicant: Apple Inc.

Inventor： Ghaith N. Hattab ,  Louay Jalloul ,  Ismael Gutierrez Gonzalez

IPC: H04W24/10 ,  H04L5/00 ,  H04W24/08

Abstract: The present application relates to devices and components including apparatus, systems, and methods to perform CSI-reporting. In an example, a BWP includes “M” subbands and is configured to the UE. The UE can process “Kc” CSI-RS samples to generate “M” subband CSI reports, where “Kc>M.” The UE determines what number of CSI-RS samples to use per subband based on the channel information of the BWP, where this number can vary between the subbands.

公开(公告)号：US20240405838A1

公开(公告)日：2024-12-05

申请号：US18805964

申请日：2024-08-15

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Weidong Yang ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Oghenekome Oteri ,  Ghaith N Hattab ,  Ismael Gutierrez Gonzalez ,  Jie Cui ,  Yang Tang ,  Yeong-Sun Hwang

IPC: H04B7/06 ,  H04B7/0417

Abstract: A base station and wireless communication (UE) may perform type II CSI-RS port selection based at least on partial reciprocity between an uplink path and a downlink path between the base station and the UE. The base station may identify dominant signal paths between the base station and the UE, based on measurements performed during uplink transmissions, and may transmit, to the UE, corresponding information indicative of CSI measurement and reporting configuration that may include a single measurement resource or multiple measurement resources. Each measurement resource may include multiple-port CSI-RS ports. The UE may indicate, to the base station, selection of a measurement resource when multiple measurement resources are configured, and may also report layer independent or layer common selection of a subset of CSI-RS ports included in the indicated single measurement resource or multiple measurement resources. Further enhancements include frequency domain compression enhancement and dynamic codebook parameter reconfiguration.

公开(公告)号：US12101656B2

公开(公告)日：2024-09-24

申请号：US17440583

申请日：2020-08-05

Applicant: Apple Inc.

Inventor： Haitong Sun ,  David Neumann ,  Dawei Zhang ,  Ghaith N. Hattab ,  Ismael Gutierrez Gonzalez ,  Wei Zeng ,  Yeong-Sun Hwang ,  Yushu Zhang ,  Ziyang Ju

IPC: H04W72/0446 ,  H04B7/06 ,  H04L5/00 ,  H04L25/00 ,  H04W24/10

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

Abstract: An approach is described for a user equipment (UE) to receive a channel state information (CSI) reporting configuration message from a source device of a first cell and receive a channel state information reference signal (CSI-RS) from a second cell via the source device. The UE determines a first number of CSI-RS resources of a first time slot duration corresponding to the first cell, a second number of CSI-RS resources of a second time slot duration corresponding to the second cell, an overall time slot duration based on the first and the second time slot duration, an overall number of CSI-RS resources of the overall time slot duration based at least on the first and the second number of CSI-RS resource, generates a capability report at least based on the overall number of CSI-RS resource, and transmits the capability report to the source device.

公开(公告)号：US20240291610A1

公开(公告)日：2024-08-29

申请号：US18655617

申请日：2024-05-06

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Gokhan Ozer ,  Yeong-Sun Hwang ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Manasa Raghavan ,  Jie Cui ,  Weidong Yang ,  Amir Aminzadeh Gohari ,  Ghaith N. Hattab ,  Yang Tang ,  Ismael Gutierrez Gonzalez ,  Ziyang Ju

IPC: H04L5/00 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26 ,  H04L41/08 ,  H04L69/24 ,  H04W28/16

CPC classification number: H04L5/0048 ,  H04B7/0632 ,  H04B7/0695 ,  H04L5/0094 ,  H04L2025/03783 ,  H04L27/261 ,  H04L41/08 ,  H04L69/24 ,  H04W28/16

Abstract: This disclosure relates to techniques for performing wireless communications including exchanging information related to capability of processing reference signals. A user equipment device may provide capability information to a network. The capability information may indicate a number of reference signal resources that the user equipment device can process in a slot or other defined period of time. The user equipment device and the network may share a common set of definitions, counting rules, and approaches for interpreting the capability information. The network may configure reference signals for the user equipment device.

公开(公告)号：US20220166486A1

公开(公告)日：2022-05-26

申请号：US17439179

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Weidong Yang ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Chunhai Yao ,  Chunxuan Ye ,  Oghenekome Oteri ,  Ghaith N Hattab ,  Ismael Gutierrez Gonzalez ,  Jie Cui ,  Yang Tang ,  Yeong-Sun Hwang

IPC: H04B7/06 ,  H04B7/0417

Abstract: A base station and wireless communication (UE) may perform type II CSI-RS port selection based at least on partial reciprocity between an uplink path and a downlink path between the base station and the UE. The base station may identify dominant signal paths between the base station and the UE, based on measurements performed during uplink transmissions, and may transmit, to the UE, corresponding information indicative of CSI measurement and reporting configuration that may include a single measurement resource or multiple measurement resources. Each measurement resource may include multiple-port CSI-RS ports. The UE may indicate, to the base station, selection of a measurement resource when multiple measurement resources are configured, and may also report layer independent or layer common selection of a subset of CSI-RS ports included in the indicated single measurement resource or multiple measurement resources. Further enhancements include frequency domain compression enhancement and dynamic codebook parameter reconfiguration.

公开(公告)号：US20240236724A1

公开(公告)日：2024-07-11

申请号：US17905292

申请日：2021-10-01

Applicant: APPLE INC.

Inventor： Haitong Sun ,  Chunxuan Ye ,  Dawei Zhang ,  Ismael Gutierrez Gonzalez ,  Wei Zeng ,  Weidong Yang ,  Yeong-Sun Hwang ,  Yushu Zhang

IPC: H04W24/08 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04W24/08 ,  H04B7/024 ,  H04B7/0486 ,  H04B7/0626

Abstract: Enhanced channel state information (CSI) reporting may include encoding a CSI reporting configuration associated with a first transmission and reception point (TRP) and a second TRP. The CSI reporting configuration may include at least one codebook configuration. The at least one codebook may include at least one of a rank restriction configuration or a codebook subset restriction (CBSR) configuration. The at least one of the rank restriction configuration or the CBSR configuration may correspond to at least one of a particular type of TRP measurement, a particular TRP of the first TRP or the second TRP, or channel measurement resources (CMRs) associated with at least one of the first TRP or the second TRP. A CSI measurement communication received from a user equipment (UE) may be decoded. The CSI measurement communication may be based on the decoded CSI reporting configuration.

公开(公告)号：US11855715B2

公开(公告)日：2023-12-26

申请号：US17833502

申请日：2022-06-06

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Yuchul Kim ,  Hong He ,  Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Oghenekome Oteri ,  Ismael Gutierrez Gonzalez ,  Ghaith N Hattab ,  Jie Cui ,  Yang Tang ,  Haijing Hu ,  Fangli Xu ,  Zhibin Wu ,  Yuqin Chen ,  Yeong-Sun Hwang

IPC: H04B7/0413 ,  H04L1/1829 ,  H04W72/23 ,  H04L5/00 ,  H04W92/18

CPC classification number: H04B7/0413 ,  H04L1/1854 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/23 ,  H04W92/18

Abstract: Apparatuses, systems, and methods for multi-TRP by a UE, including out of order delivery of PDSCH, PUSCH, and/or DL ACK/NACK. The UE may receive, from a base station, a configuration that may include multiple control resource set (CORESET) pools and each CORESET pool may be associated with an index value. The UE may determine that at least two DCIs of the multiple DCIs end at a common symbol and determine, based on one or more predetermined rules, when the UE may be scheduled to receive PDSCHs, transmit PUSCHs, and/or transmit ACK/NACKs from CORESETs associated with the at least two DCIs.

公开(公告)号：US20230246685A1

公开(公告)日：2023-08-03

申请号：US17442413

申请日：2020-08-07

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Ismael Gutierrez Gonzalez ,  Jie Cui ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Yang Tang ,  Yushu Zhang

IPC: H04B7/06

CPC classification number: H04B7/0626

Abstract: A user equipment (UE), or other network component can operate to configure channel state information (CSI) feedback in response to receiving a CSI-reference signal (CSI-RS) according to a hierarchical precoding scheme that selectively reduces a feedback overhead associated with the CSI feedback. The UE can operate to divide and further sub-divide a frequency band (e.g., a wideband, or particular frequency part) into a precoding hierarchy to generate precoders for conveyance to a base station, eNodeB (eNB), or next generation NodeB (gNB) via the CSI feedback.

公开(公告)号：US20230208488A1

公开(公告)日：2023-06-29

申请号：US17442429

申请日：2020-08-07

Applicant: Apple Inc.

Inventor： Weidong Yang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Haitong Sun ,  Hong He ,  Ismael Gutierrez Gonzalez ,  Jie Cui ,  Oghenekome Oteri ,  Sigen Ye ,  Wei Zeng ,  Yang Tang ,  Yushu Zhang

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04L5/0051 ,  H04B7/0478

Abstract: A base station or other network component (next generation NodeB (gNB)) can operate to transmit a channel state information reference signal (CSI-RS) for channel state information (CSI) feedback. The CSI feedback can be received as corresponding to one or more frequency parts at hierarchical precoding levels of a frequency band based on a hierarchical precoding scheme in response to providing the CSI-RS.