公开(公告)号：US20230156753A1

公开(公告)日：2023-05-18

申请号：US18084049

申请日：2022-12-19

Applicant: Apple Inc.

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

IPC: H04W72/51 ,  H04L5/00 ,  H04W72/541 ,  H04W72/542

CPC classification number: H04W72/51 ,  H04L5/0026 ,  H04L5/0048 ,  H04W72/541 ,  H04W72/542

Abstract: A user equipment (UE) transmits concurrent channel state information (CSI) processing capability information to a base station. The capability information can take various forms, and is intended to constrain the base station in the types of CSI requests that can be made to the UE. For example, the UE may indicate different CSI processing capabilities for intra-CC and inter-CC cases and/or for different codebook types. The UE may also specify supported combinations of codebook types for concurrent CSI reporting. The UE may also specify maximum resources or weighting factors for different codebook types. The UE may further restrict the rank information it provides and use a priority rule for “dropping” CSI report data due to payload size restrictions. The base station may direct, or the UE may implement, improved utilization of CSI resources that are shared for multiple concurrent CSI reports. Minimum time requirements for CSI reporting may also be relaxed.

公开(公告)号：US11653311B2

公开(公告)日：2023-05-16

申请号：US17175494

申请日：2021-02-12

Applicant: Apple Inc.

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

IPC: H04W52/18 ,  H04W72/04

CPC classification number: H04W52/18 ,  H04W72/042 ,  H04W72/048

Abstract: A method for operating user equipment (UE) includes generating, by the UE, a transmit precoding matrix indicator (TPMI) list including one or more TPMIs selected from a set of available TPMIs stored at a base station (BS). Data indicative of the TPMI list is transmitted to the BS. An index of the TPMI list is transmitted to the BS. Downlink control information (DCI) is received from the BS including an indication of at least one TPMI from the TPMI list based on the index. Uplink data is transmitted to the BS on a physical uplink shared channel (PUSCH) using the at least one TPMI.

公开(公告)号：US12132545B2

公开(公告)日：2024-10-29

申请号：US17259886

申请日：2020-02-12

Applicant: Apple Inc.

Inventor： Haitong Sun ,  Yushu Zhang ,  Wei Zeng ,  Dawei Zhang ,  Ghaith N. Hattab ,  Ismael Gutierrez Gonzalez ,  Anchit Malhotra ,  Louay Jalloul ,  David Neumann ,  Ziyang Ju

IPC: H04B7/06 ,  H04J13/00

CPC classification number: H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04J13/004

Abstract: This disclosure relates to techniques for a wireless device to perform channel state information reporting. The wireless device may receive channel state information reporting configuration information. The channel state information reporting configuration information may include an indication to use a wideband precoding matrix indicator format for 3GPP release 16 type II channel state information reporting. The wireless device may perform channel state information reporting using a different reporting configuration than 3GPP release 16 type II channel state information reporting using a wideband precoding matrix indicator format based at least in part on the channel state information reporting configuration information. The wireless device may also or alternatively perform 3GPP type I channel state information reporting using a unified spatial basis selection framework for rank indicators of 3 and 4 for any number of channel state information reference signal ports.

公开(公告)号：US12096257B2

公开(公告)日：2024-09-17

申请号：US17441639

申请日：2020-08-05

Applicant: Apple Inc.

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

IPC: H04W24/08 ,  H04L1/00 ,  H04W72/232

CPC classification number: H04W24/08 ,  H04L1/0026 ,  H04W72/232

Abstract: Some aspects of this disclosure relate to apparatuses and methods for implementing channel state information (CSI) reporting that includes a stale CSI report. Based at least in part on a CSI reporting configuration, a user equipment (UE) performs CSI measurements during a current reference time period, and generates one or more CSI reports including at least a stale CSI report. A stale CSI report is generated based at least in part on CSI measurements performed prior to the current reference time period. The UE further generates an uplink message including the one or more CSI reports, and transmits the uplink message to the base station under a reporting setting determined by the CSI reporting configuration.

公开(公告)号：US20240040513A1

公开(公告)日：2024-02-01

申请号：US18375965

申请日：2023-10-02

Applicant: Apple Inc.

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

IPC: H04W52/18 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W52/18 ,  H04W72/23 ,  H04W72/51

Abstract: A method for operating user equipment (UE) includes generating, by the UE, a transmit precoding matrix indicator (TPMI) list including one or more TPMIs selected from a set of available TPMIs stored at a base station (BS). Data indicative of the TPMI list is transmitted to the BS. An index of the TPMI list is transmitted to the BS. Downlink control information (DCI) is received from the BS including an indication of at least one TPMI from the TPMI list based on the index. Uplink data is transmitted to the BS on a physical uplink shared channel (PUSCH) using the at least one TPMI.

公开(公告)号：US20230337145A1

公开(公告)日：2023-10-19

申请号：US18136301

申请日：2023-04-18

Applicant: Apple Inc.

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

IPC: H04W52/18 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W52/18 ,  H04W72/23 ,  H04W72/51

Abstract: A method for operating user equipment (UE) includes generating, by the UE, a transmit precoding matrix indicator (TPMI) list including one or more TPMIs selected from a set of available TPMIs stored at a base station (BS). Data indicative of the TPMI list is transmitted to the BS. An index of the TPMI list is transmitted to the BS. Downlink control information (DCI) is received from the BS including an indication of at least one TPMI from the TPMI list based on the index. Uplink data is transmitted to the BS on a physical uplink shared channel (PUSCH) using the at least one TPMI.

公开(公告)号：US12237884B2

公开(公告)日：2025-02-25

申请号：US17887899

申请日：2022-08-15

Applicant: Apple Inc.

Inventor： Louay Jalloul ,  Ghaith N. Hattab

IPC: H04B7/0452 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/1273

Abstract: Methods and systems are for configuring multi-user multiple-input multiple output (MU-MIMO) operation by a base station and a plurality of UEs include requesting sounding reference signals (SRS) or channel state information (CSI) data from each UE of the plurality; configuring, based on the SRS or CSI data from each UE, a precoder matrix, the precoder matrix allocating a plurality of precoded CSI-reference signal (CSI-RS) resources for each UE; scheduling, for each UE, the precoded CSI-RS resources; receiving, from each UE, a CQI report that is based on the precoded CSI-RS resources received by that respective UE; generating a CQI matrix from the CQI reports of each UE; selecting a subset of UEs from the plurality based on the CQI matrix; and scheduling DL resources for the subset of UEs, the DL resources including reference signals.

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：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.