公开(公告)号：US12127237B2

公开(公告)日：2024-10-22

申请号：US18364782

申请日：2023-08-03

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04W72/542 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04W72/541

CPC classification number: H04W72/542 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/541

Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.

公开(公告)号：US12021588B2

公开(公告)日：2024-06-25

申请号：US17287186

申请日：2019-10-30

Applicant: Apple Inc.

Inventor： Bishwarup Mondal ,  Yushu Zhang ,  Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04B7/06 ,  H04B7/0417 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0639 ,  H04W24/10 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1263

Abstract: Methods, systems, and circuitries for configuring, measuring, and reporting channel state information are described. In one embodiment, an apparatus for a user equipment device (UE) includes processors configured to determine first channel state information (CSI) reference signal (RS) resource associated with a serving cell for the UE and determine a second CSI-RS resource associated with a non-serving cell for the UE. A first reference signal received in the first CSI-RS resource and a second reference signal received in the second CSI-RS resource are measured. First report quantities characterizing a channel between the UE and the serving cell are calculated based on the measurement of the first reference signal and second report quantities characterizing a channel between the UE and the non-serving cell are calculated based on the measurement of the second reference signal. The first and second report quantities are reported to the serving cell.

公开(公告)号：US11930522B2

公开(公告)日：2024-03-12

申请号：US17745112

申请日：2022-05-16

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Sameer Pawar

IPC: H04W72/541 ,  H04B17/336 ,  H04J13/16 ,  H04L5/00 ,  H04W72/044

CPC classification number: H04W72/541 ,  H04B17/336 ,  H04J13/16 ,  H04L5/005 ,  H04W72/046

Abstract: Techniques discussed herein can facilitate reduced density CSI (Channel State Information)-RS (Reference Signals). One example embodiment can be employed at a UE (User Equipment) and can comprise processing circuitry configured to receive and process a configuration message that comprises one or more configuration parameters for one or more CSI (Channel State Information)-RS (Reference Signal) APs (Antenna Ports) of a configurable density CSI-RS. The configuration parameters indicate a density of CSI-RS resource per Physical Resource Block (PRB) per CSI-RS AP and a PRB offset. The processing circuitry is further configured to determine a set of REs (Resource Elements) for the one or more CSI-RS APs of the configurable density CSI-RS based on the one or more configuration parameters and perform measurements on the configurable density CSI-RS from the set of REs to determine one or more CSI parameters. The one or more configuration parameters are provided per CSI-RS resource configuration.

公开(公告)号：US20240008069A1

公开(公告)日：2024-01-04

申请号：US18364782

申请日：2023-08-03

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04W72/542 ,  H04B7/06 ,  H04L5/00 ,  H04W72/541 ,  H04B7/0417

CPC classification number: H04W72/542 ,  H04B7/0617 ,  H04L5/0091 ,  H04L5/0023 ,  H04L5/0053 ,  H04B7/0626 ,  H04L5/0039 ,  H04W72/541 ,  H04B7/0417 ,  H04L5/0048

Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.

公开(公告)号：US11765764B2

公开(公告)日：2023-09-19

申请号：US17900904

申请日：2022-09-01

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev

IPC: H04W72/542 ,  H04B7/06 ,  H04L5/00 ,  H04W72/541 ,  H04B7/0417

CPC classification number: H04W72/542 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04L5/0023 ,  H04L5/0039 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/541

Abstract: Techniques for measuring CSI (Channel State Information) based on beamformed CSI-RS having reduced overhead are discussed. One example embodiment configured to be employed in a UE (User Equipment) comprises a memory; and one or more processors configured to: process higher layer signaling indicating one or more CSI-RS resources associated with a plurality of REs (Resource Elements) comprising a RE for each CSI-RS resource for each of one or more CSI-RS APs (Antenna Ports) in each of a plurality of continuous PRBs (physical resource blocks); process additional higher layer signaling comprising one or more CSI-RS parameters that indicate a subset of the plurality of REs associated with a beamformed CSI-RS transmission; decode one or more CSI-RSs from the indicated subset; and measure one or more CSI parameters based on the decoded one or more CSI-RSs.

公开(公告)号：US11611939B2

公开(公告)日：2023-03-21

申请号：US15567820

申请日：2015-09-25

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Vadim Sergeyev ,  Gregory V. Morozov

IPC: H04W52/14 ,  H04W52/16 ,  H04W52/36 ,  H04W72/04 ,  H04L27/00 ,  H04L5/00

Abstract: Examples include techniques for determining power offsets of a physical downlink shared channel (PDSCH). In some examples higher and physical layer signaling may be provided to user equipment (UE) by a base station such as an evolved Node B to enable the UE to determine power offset values for a multiplexed PDSCH having a serving PDSCH and a co-scheduled PDSCH transmitted via use of same time and frequency resources. The determined power offset values for use by the UE to demodulate the serving PDSCH and mitigate possible interference caused by the co-scheduled PDSCH. Both the UE and the eNB may operate in compliance with one or more 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards.

公开(公告)号：US11368963B2

公开(公告)日：2022-06-21

申请号：US16467566

申请日：2017-09-19

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Sameer Pawar

IPC: H04W72/08 ,  H04B17/336 ,  H04J13/16 ,  H04L5/00 ,  H04W72/04

Abstract: Techniques discussed herein can facilitate reduced density CSI (Channel State Information)-RS (Reference Signals). One example embodiment can be employed at a UE (User Equipment) and can comprise processing circuitry configured to: process one or more configuration messages that comprise one or more configuration parameters for one or more CSI (Channel State Information)-RS (Reference Signal) APs (Antenna Ports) of a reduced density CSI-RS, wherein the one or more configuration parameters indicate a PRB (Physical Resource Block) decimation and a PRB offset; determine a set of REs (Resource Elements) for the one or more CSI-RS APs of the reduced density CSI-RS based on the one or more configuration parameters; measure the reduced density CSI-RS from the set of REs to determine one or more CSI parameters.

公开(公告)号：US20210297204A1

公开(公告)日：2021-09-23

申请号：US17265429

申请日：2019-08-09

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Gang Xiong ,  Gregory V. Morozov ,  Yushu Zhang ,  Dae Won Lee

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: Technology for a Next Generation NodeB (gNB) operable to adapt to a downlink waveform type for wireless transmissions is disclosed. The gNB can encode an indicator of a downlink waveform type of a plurality of downlink waveform types for transmission to a user equipment (UE). The gNB can encode 5 a downlink signal for transmission on a downlink physical channel to the UE using the indicated downlink waveform type in a wireless system operating above a 52.6 gigahertz (GHz) carrier frequency.

公开(公告)号：US11122551B2

公开(公告)日：2021-09-14

申请号：US16457367

申请日：2019-06-28

Applicant: Apple Inc.

Inventor： Hwan-Joon Kwon ,  Alexei Davydov ,  Seunghee Han ,  Gregory V. Morozov ,  Youn Hyoung Heo

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/14 ,  H04W72/08 ,  H04W28/06 ,  H04L27/34 ,  H04W28/08

Abstract: A mobile communication device includes a table component, a table selection component, a control information component, and a communication component. The table component is configured to maintain two or more tables each having entries for a plurality of available modulation schemes. The table selection component is configured to select a selected table from one of the default table and the secondary table based on one or more of RRC layer signaling and MAC layer signaling and further based based on a control information format for control information received from the eNB. The control information component is configured to receive control information indicating a modulation and coding scheme from the selected table, and the communication component is configured to receive and process a communication from the eNB based on the modulation and coding scheme from the selected table.

公开(公告)号：US10924163B2

公开(公告)日：2021-02-16

申请号：US16609294

申请日：2018-06-04

Applicant: Apple Inc.

Inventor： Alexei Dayvdov ,  Gregory V. Morozov ,  Yushu Zhang ,  Victor Sergeev ,  Wook Bong Lee ,  Dmitry Dikarev

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0426 ,  H04B7/0456

Abstract: Network devices and systems in 5G advance long term evolution (LTE) and new radio (NR) infrastructures utilize beam management operations to ensure communications for channel state information (CSI) reporting by a user equipment (UE). CSI report configuration reporting settings are processed based on a codebook subset restriction to indicate pre-coding matrix indicators (PMIs) that are restricted and non-restricted for PMI reporting associated with a rank indicator (RI). Based on the codebook subset restriction, an advanced CSI codebook or a new radio (NR) codebook is generated to be transmitted on non-restricted beams of the codebook subset restriction.