公开(公告)号：US20230403074A1

公开(公告)日：2023-12-14

申请号：US18458323

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：US11812390B2

公开(公告)日：2023-11-07

申请号：US17248900

申请日：2021-02-12

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Hyejung Jung ,  Gregory Morozov ,  Victor Sergeev

IPC: H04W52/14 ,  H04W52/42 ,  H04W52/58

CPC classification number: H04W52/146 ,  H04W52/42 ,  H04W52/58

Abstract: This disclosure proposes a mobile communication system to use multiple power control loops in the uplink. Each power control loop may be associated with a respective antenna beam transmitted from an antenna array of the electronic device (e.g. UE) in the uplink of the communication system. Each power control loop may also be associated with a respective set of one or more MIMO layers. This concept is applicable to open-loop, closed-loop power control or both.

公开(公告)号：US20230344497A1

公开(公告)日：2023-10-26

申请号：US18216555

申请日：2023-06-29

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Yushu Zhang ,  Alexei Davydov

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/08 ,  H04L5/00

CPC classification number: H04B7/0639 ,  H04B7/0404 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0023 ,  H04B7/0452

Abstract: Embodiments of the present disclosure describe apparatuses, methods and machine-readable storage medium for beam reporting, beam indication and scheduling of data transmission during beam management.

公开(公告)号：US11784863B2

公开(公告)日：2023-10-10

申请号：US18101145

申请日：2023-01-25

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Debdeep Chatterjee ,  Yushu Zhang ,  Alexei Davydov ,  Wook Bong Lee ,  Dae Won Lee ,  Sameer Pawar ,  Jeongho Jeon ,  Hong He

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04L5/001 ,  H04L5/0017 ,  H04L5/0048 ,  H04L5/0051 ,  H04L27/261

Abstract: Systems, methods, and circuitries are disclosed for generating demodulation reference signals (DM-RS). In one example, a method for a user equipment (UE), includes receiving a configuration of a plurality of bandwidth parts (BWPs) configured with respective numerologies; generating a first pseudo-random sequence based at least in part on one or more of a physical cell ID, a virtual cell ID, a symbol index, a slot index, a frame index, a scrambling ID, or a UE ID for generation of a first DM-RS sequence, wherein a initialization seed for the first pseudo-random sequence is based on a scrambling ID and a slot index, wherein, for the plurality of BWPs a respective scrambling ID is associated with each BWP, and wherein the slot index is defined in accordance with the numerology of the associated BWP; and mapping, for a first BWP, the first DM-RS sequence to at least one DM-RS symbol.

公开(公告)号：US11770231B2

公开(公告)日：2023-09-26

申请号：US17716566

申请日：2022-04-08

Applicant: Apple Inc.

Inventor： Sameer Pawar ,  Alexei Davydov

IPC: H04L5/00 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0051 ,  H04L5/0091 ,  H04W72/21 ,  H04W72/23

Abstract: Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence. The second circuitry may be operable to process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies. The second circuitry may also be operable to process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies. The second SRS sequence may comprise at least a first block that overlaps the first set of subcarrier frequencies and a second block that does not overlap the first set of subcarrier frequencies.

公开(公告)号：US20230171141A1

公开(公告)日：2023-06-01

申请号：US18101145

申请日：2023-01-25

Applicant: Apple Inc.

Inventor： Gang Xiong ,  Debdeep Chatterjee ,  Yushu Zhang ,  Alexei Davydov ,  Wook Bong Lee ,  Dae Won Lee ,  Sameer Pawar ,  Jeongho Jeon ,  Hong He

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04L5/001 ,  H04L5/0017 ,  H04L5/0051 ,  H04L27/261 ,  H04L5/0048

Abstract: Systems, methods, and circuitries are disclosed for generating demodulation reference signals (DM-RS). In one example, a method for a user equipment (UE), includes receiving a configuration of a plurality of bandwidth parts (BWPs) configured with respective numerologies; generating a first pseudo-random sequence based at least in part on one or more of a physical cell ID, a virtual cell ID, a symbol index, a slot index, a frame index, a scrambling ID, or a UE ID for generation of a first DM-RS sequence, wherein a initialization seed for the first pseudo-random sequence is based on a scrambling ID and a slot index, wherein, for the plurality of BWPs a respective scrambling ID is associated with each BWP, and wherein the slot index is defined in accordance with the numerology of the associated BWP; and mapping, for a first BWP, the first DM-RS sequence to at least one DM-RS symbol.

公开(公告)号：US20230155609A1

公开(公告)日：2023-05-18

申请号：US18094068

申请日：2023-01-06

Applicant: Apple Inc.

Inventor： Dmitry Dikarev ,  Grigory Ermolaev ,  Ajit Nimbalker ,  Alexei Davydov ,  Ashwin Chandrasekaran ,  Sathishkumar Chellakuttigounder Kulandaivel

IPC: H03M13/13 ,  H03M13/09 ,  H03M13/27 ,  H03M13/00

CPC classification number: H03M13/13 ,  H03M13/09 ,  H03M13/2703 ,  H03M13/2789 ,  H03M13/6356

Abstract: Techniques discussed herein can facilitate polar coding and decoding for NR (New Radio) systems. Various embodiments discussed herein can employ polar coding and/or decoding at UE(s) (User Equipment(s)) and/or gNB(s) (next generation Node B(s)). One example embodiment employable at a UE can comprise processing circuitry configured to determine one or more thresholds for code block segmentation, wherein the one or more thresholds for code block segmentation comprise one or more of a payload threshold (Kseg) or a code rate threshold (Rseg); determine to perform code block segmentation based on the one or more thresholds and at least one of a current payload (K) of an information block or a current code rate (R) for the information block; segment the information block into a plurality of segments; and encode each segment of the plurality of segments via a polar encoder with a code size (N).

公开(公告)号：US20230113485A1

公开(公告)日：2023-04-13

申请号：US18078438

申请日：2022-12-09

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Seunghee Han ,  Yuan Zhu ,  Xiaogang Chen ,  Alexander Maltsev ,  Gregory Morozov

IPC: H04W36/14 ,  H04L1/00 ,  H04L61/5007 ,  H04W12/02 ,  H04W72/21 ,  H04W72/23 ,  H04W72/30 ,  H04W76/14 ,  H04W76/11 ,  H04W76/10 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/06 ,  H04J11/00 ,  H04L5/00 ,  H04L12/46 ,  H04L9/40 ,  H04W24/10 ,  H04W28/02 ,  H04W36/00 ,  H04W36/22 ,  H04W48/08 ,  H04W48/16 ,  H04W52/02 ,  H04W56/00 ,  H04W68/00 ,  H04W88/08

Abstract: Various embodiments are generally directed to improved channel quality information feedback techniques. In one embodiment, for example, an apparatus for a base station is provided that includes a radio interface and a processor coupled to the radio interface. The processor is configured to receive a channel quality indicator (CQI) index, wherein the CQI index is based on a channel state information (CSI) reference resource, further wherein a first three orthogonal frequency-division multiplexing (OFDM) symbols of the CSI reference resource are occupied by control signals, select a modulation and coding scheme (MCS) for a physical downlink shared channel (PDSCH) based on the CQI index, and cause transmission of the PDSCH based on the selected MCS via the radio interface. Other embodiments are described and claimed.

公开(公告)号：US20230089191A1

公开(公告)日：2023-03-23

申请号：US18071682

申请日：2022-11-30

Applicant: Apple Inc.

Inventor： Alexei Davydov

IPC: H04B7/06 ,  H04L5/00 ,  H04W8/08 ,  H04W16/28 ,  H04W64/00 ,  H04W72/04

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：US11582743B2

公开(公告)日：2023-02-14

申请号：US17388325

申请日：2021-07-29

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Wook Bong Lee ,  Hong He ,  Seung Hee Han ,  Honglei Miao

IPC: H04W72/04 ,  H04B7/06 ,  H04W24/08 ,  H04L5/00 ,  H04B7/08

Abstract: Techniques for transmitting and receiving beamformed transmission(s) of a common search space of a DL (Downlink) control channel are discussed. One example embodiment that can be employed at a UE (User Equipment) comprises processing circuitry configured to: select a set of receive beamforming weights for a DL (Downlink) control channel; and decode one or more control channel sets from a common search space of the DL control channel, wherein each control channel set of the one or more control channel sets is mapped to an associated symbol of one or more symbols of a slot, wherein each control channel set of the one or more control channel sets has an associated transmit beamforming, and wherein each control channel set of the one or more control channel sets comprises a common set of control information.