公开(公告)号：US12010055B2

公开(公告)日：2024-06-11

申请号：US17437750

申请日：2021-03-31

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：US20220302965A1

公开(公告)日：2022-09-22

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 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04

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：US11012132B2

公开(公告)日：2021-05-18

申请号：US16488618

申请日：2018-03-12

Applicant: Apple Inc.

Inventor： Yeong-Sun Hwang ,  Franz Eder ,  Ziyang Ju

IPC: H04B7/06 ,  H04L25/02

Abstract: A method and apparatus for three-dimensional beamforming, which include an estimation of a channel spatial coherence for a beam space of a device based on a plurality of non-precoded reference signals such that the beam space includes a plurality of beam subspaces based on the estimated channel spatial coherence and each of the plurality of beam subspaces include a beam direction representative of a respective beam subspace of the plurality of beam subspaces. Furthermore, a selection a beam subspace of the plurality of beam subspaces based on a channel quality metric of the beam direction that is representative of the beam subspace is included.

公开(公告)号：US20210099222A1

公开(公告)日：2021-04-01

申请号：US17120931

申请日：2020-12-14

Applicant: Apple Inc.

Inventor： Yeong-Sun Hwang ,  Yuan Zhu ,  Elmar Wagner

IPC: H04B7/08 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/0413

Abstract: A Multiple-Input-Multiple-Output (MIMO) antenna array configuration is described in one example comprising a plurality of Radio Frequency (RF) chains, a plurality of antenna elements, and a plurality of phase shifters, wherein the antenna elements and phase shifters form a plurality of antenna arrays, and coupled to the RF chains, and the number of antenna arrays is larger than the number of RF chains.

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：US11838089B2

公开(公告)日：2023-12-05

申请号：US17593562

申请日：2020-05-15

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Chunhai Yao ,  Chunxuan Ye ,  Dawei Zhang ,  Fangli Xu ,  Haijing Hu ,  Haitong Sun ,  Hong He ,  Wei Zeng ,  Weidong Yang ,  Yeong-Sun Hwang ,  Yuchul Kim ,  Yuqin Chen

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00

CPC classification number: H04B7/0695 ,  H04B7/088 ,  H04L5/0048

Abstract: Systems and methods for control signaling for beam searching latency reduction are disclosed herein. A g Node B (gNB) may determine that a first Synchronization Signal Block (SSB) and a second SSB are to be spatially correlated and may select a first transmit (Tx) beam to transmit the first SSB and a second Tx beam to transmit the second SSB accordingly. The gNB may also transmit a correlation message including spatial correlation information to help a UE determine the spatial correlation. The UE may measure the first SSB on a first subset of a plurality of receive (Rx) beams and measure the second SSB on a second subset of the plurality of Rx beams, and select an Rx beam for one or both. In some embodiments, channel state information reference signals (CSI-RS) that are quasi co-located (QCLed) with a given SSB may be measured in place of the SSB.

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：US11342974B2

公开(公告)日：2022-05-24

申请号：US17247416

申请日：2020-12-10

Applicant: Apple Inc.

Inventor： Yeong-Sun Hwang ,  Yuan Zhu ,  Yushu Zhang ,  Huaning Niu ,  Wenting Chang

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/04

Abstract: Example embodiments are directed towards beam formation matching for communications between a receiver and transmitter in a multiple beam Multiple Input Multiple Output (MIMO) system.