公开(公告)号：US12224828B2

公开(公告)日：2025-02-11

申请号：US17430642

申请日：2020-02-06

Applicant: Apple Inc.

Inventor： Victor Sergeev ,  Alexei Davydov ,  Bishwarup Mondal ,  Dmitry Dikarev

IPC: H04B7/06

Abstract: Some embodiments of this disclosure include apparatuses and methods for reporting channel state information (CSI) for multiple spatial layers. The apparatuses and methods can include at least: determining, by a user equipment (UE), a precoding matrix indicator (PMI) for a set of precoding matrixes, wherein the PMI is determined based on a combination of digital Fourier transformation (DFT) spatial domain (SD) vectors, or based on DFT-based frequency domain (FD) compression; and transmitting, by the UE, the PMI to a next-generation NodeB (gNB).

公开(公告)号：US12199713B2

公开(公告)日：2025-01-14

申请号：US18071682

申请日：2022-11-30

Applicant: Apple Inc.

Inventor： Alexei Davydov

IPC: H04W8/08 ,  H04B7/06 ,  H04L5/00 ,  H04W16/28 ,  H04W64/00 ,  H04W72/23

Abstract: Techniques for employing QCL (Quasi Co-Location) signaling for beamforming management are discussed. One example embodiment can comprise a baseband processor of a User Equipment (UE). The baseband processor comprises one or more processors to make a determination whether a first set of RS (Reference Signal) APs (Antenna Ports) are QCL-ed (Quasi Co-Located) with a second set of RS APs with respect to one or more large-scale channel properties and to select a set of receiving parameters for the second set of RS APs based on the one or more spatial receiver parameters. The one or more large-scale channel properties comprise one or more spatial receiver parameters. The first set of RS APs are distinct from the second set of RS APs.

公开(公告)号：US12170563B2

公开(公告)日：2024-12-17

申请号：US17437804

申请日：2020-05-08

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Yushu Zhang ,  Alexei Davydov ,  Gang Xiong

IPC: H04W76/19 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W56/00

Abstract: Apparatuses, systems, and methods for providing beam information for secondary cell beam failure recovery in a wireless communication system. A wireless device and a cellular base station may establish a wireless link, according to which the wireless device may be configured to communicate using a primary cell and a secondary cell. The wireless device may detect beam failure on the secondary cell. The wireless device may send an indication of the beam failure recovery to the cellular base station. The wireless device may receive information configuring candidate transmit beam reference signals for performing beam recovery on the secondary cell. The wireless device may perform beam identification and report on any new transmit beam(s) identified by the wireless device.

公开(公告)号：US12155444B2

公开(公告)日：2024-11-26

申请号：US17428491

申请日：2020-02-13

Applicant: Apple Inc.

Inventor： Yushu Zhang ,  Alexei Davydov ,  Gang Xiong ,  Guotong Wang

IPC: H04W72/04 ,  H04B7/06 ,  H04L5/00 ,  H04W52/36 ,  H04W56/00 ,  H04W76/19

Abstract: Disclosed herein are system, method, and computer program product embodiments for performing beam selection. An embodiment operates by receiving, from a base station, a request for a report for at least one uplink beam. In response, the embodiment generates the report for the at least one uplink beam. The report for the at least one uplink beam can include an indication that a resource corresponding to the at least one uplink beam is available for uplink beam indication. The resource can be a Synchronization Signal Block (SSB) resource or a Channel State Information Reference Signal (CSI-RS) resource. The embodiment transmits the report for the at least one uplink beam to the base station. The embodiment then receives, from the base station, an indication that the at least one uplink beam is selectable for uplink transmission based on the report for the uplink beam.

公开(公告)号：US20240215060A1

公开(公告)日：2024-06-27

申请号：US18601878

申请日：2024-03-11

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：US11903093B2

公开(公告)日：2024-02-13

申请号：US17949957

申请日：2022-09-21

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gregory V. Morozov ,  Victor Sergeev ,  Ajit Nimbalker ,  Grigory Ermolaev ,  Dmitry Dikarev

IPC: H04W4/00 ,  H04W88/06 ,  H03M13/13 ,  H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04W4/06 ,  H04W72/1273

CPC classification number: H04W88/06 ,  H03M13/13 ,  H04B7/0413 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0035 ,  H04L5/0044 ,  H04W4/06 ,  H04W72/1273

Abstract: Described is an apparatus of a User Equipment (UE) operable to communicate with a fifth generation Evolved Node-B (gNB) on a wireless network. The apparatus includes a first circuitry and a second circuitry. The first circuitry may be operable to determine a first parameter set and a second parameter set for establishing Physical Downlink Shared Channel (PDSCH) resources. The second circuitry may be operable to process a first part of a PDSCH transmission from a first set of Multiple Input Multiple Output (MIMO) layers corresponding with a first Multimedia. Broadcast Single Frequency Network (MBSFN) configuration based on the first parameter set. The second circuitry may also be operable to process a second part of the PDSCH transmission from a second set of MIMO layers corresponding with a second MBSFN configuration based on the second parameter set.

公开(公告)号：US11889501B2

公开(公告)日：2024-01-30

申请号：US17416743

申请日：2020-01-03

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Gang Xiong ,  Jie Zhu ,  Yushu Zhang ,  Guotong Wang ,  Daewon Lee ,  Gregory Morozov ,  Sameer Pawar

IPC: H04W72/1273 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: Methods and apparatus are described for methods and apparatus for carrying out wireless communication using Long Term Evolution (LTE) in a frequency band with low peak-to-average-power. The approach includes precoding, in the frequency domain, a plurality of physical channel signals, followed by multiplexing, where the procoding is performed according to predetermined codes with a code length selected based on a length of an entire signal of the multiplexed precoded plurality of physical channel signals. In addition, the approach includes being configured to map the multiplexed precoded plurality of physical channel signals to subcarriers in the frequency band, as well to generate a time domain waveform based on the mapped signals.

公开(公告)号：US11888667B2

公开(公告)日：2024-01-30

申请号：US17711127

申请日：2022-04-01

Applicant: Apple Inc.

Inventor： Gregory Morozov ,  Dae Won Lee ,  Alexei Davydov ,  Seung Hee Han ,  Yongjun Kwak

IPC: H04W56/00 ,  H04L27/26 ,  H04W76/11 ,  H04J13/00 ,  H04L1/00 ,  H04L5/00 ,  H04L5/10

CPC classification number: H04L27/2613 ,  H04J13/0029 ,  H04L1/0061 ,  H04L5/0051 ,  H04L5/10 ,  H04W56/001 ,  H04W76/11

Abstract: A reference signal sequence to modulate the demodulation reference signal for the Physical Broadcast Channel in New Radio standard is disclosed. Formulas are proposed for calculating the initialization value for the RS sequence generator so as to accord with the characteristics of New Radio.

公开(公告)号：US20230412264A1

公开(公告)日：2023-12-21

申请号：US18458343

申请日：2023-08-30

Applicant: APPLE INC.

Inventor： Dae Won Lee ,  Seunghee Han ,  Gregory V. Morozov ,  Alexei Davydov ,  Hong He

IPC: H04B7/26 ,  H04L27/26 ,  H04W56/00

CPC classification number: H04B7/2656 ,  H04B7/2681 ,  H04L27/2666 ,  H04W56/0015

Abstract: Systems and methods for synchronizing communications between a User Equipment (UE) and Base Station (BS) using a synchronization signal structure. The synchronization signal structure can include a sequence of Synchronization Signals (SS) including repetitions of a synchronization signal burst set. The synchronization signal burst set can include a plurality of synchronization signal bursts. The synchronization signal bursts can include a plurality of synchronization signal blocks, wherein the synchronization signal blocks can include a plurality of Synchronization Signals (SS).

公开(公告)号：US11848888B2

公开(公告)日：2023-12-19

申请号：US18060416

申请日：2022-11-30

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Hyejung Jung ,  Ralf Bendlin ,  Jong-Kae Fwu ,  Alexei Davydov

IPC: H04J3/02 ,  H04L5/00 ,  H04L1/00 ,  H04W72/044 ,  H04L1/06 ,  H04W84/04

CPC classification number: H04L5/0053 ,  H04L1/0061 ,  H04L1/0067 ,  H04W72/044 ,  H04L1/0606 ,  H04L5/0051 ,  H04L2001/0093 ,  H04W84/045

Abstract: Briefly, in accordance with one or more embodiments, apparatus of an evolved NodeB (eNB) comprises circuitry to configure one or more parameters for a 5G master information block (xMIB). The xMIB contains at least one of the following parameters: downlink system bandwidth, system frame number (SFN), or configuration for other physical channels, or a combination thereof. The apparatus of the eNB comprises circuitry to transmit the xMIB via a 5G physical broadcast channel (xPBCH) on a predefined resource, the xPBCH comprising a xPBCH. The xPBCH may use a DM-RS based transmission mode, and a beamformed xPBCH may be used for mid band and high band.