公开(公告)号：US20210006443A1

公开(公告)日：2021-01-07

申请号：US16976624

申请日：2018-07-26

Applicant: Apple Inc.

Inventor： Gregory Morozov ,  Daewon Lee ,  Alexei Davydov ,  Seunghee Han ,  Yongjun Kwak

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

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：US20200252194A1

公开(公告)日：2020-08-06

申请号：US16786953

申请日：2020-02-10

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Gregory Morozov ,  Alexander Maltsev ,  Vadim Sergeyev ,  Ilya Bolotin

IPC: H04L5/14 ,  H04W72/04 ,  H04W72/02 ,  H04L27/26 ,  H04B7/06 ,  H04W56/00 ,  H04L1/18 ,  H04J11/00 ,  H04W68/02 ,  H04L5/00 ,  H04J3/12 ,  H04W72/08 ,  H04W24/02 ,  H04W4/06 ,  H04W52/24 ,  H04B7/0456 ,  H04B7/024 ,  H04W52/14 ,  H04L1/00 ,  H04W76/40 ,  H04W76/11 ,  H04W4/70

Abstract: Technology for a user equipment (UE) operable to adjust a receiver timing is disclosed. The UE can decode a plurality of channel-state information reference signals (CSI-RSs) received from a plurality of cooperating nodes, wherein the plurality of cooperating nodes are included in a coordination set of a Coordinated MultiPoint (CoMP) system. The UE can generate a plurality of received RS timings from the plurality of CSI-RSs, wherein the received RS timings represent timings from the plurality of cooperating nodes. The UE can determine a composite received RS timing from the plurality of received RS timings. The UE can adjust the receiver timing based on the composite received RS timing.

公开(公告)号：US12262334B2

公开(公告)日：2025-03-25

申请号：US17267085

申请日：2019-08-09

Applicant: Apple Inc.

Inventor： Yongjun Kwak ,  Daewon Lee ,  Gregory Morozov ,  Seunghee Han

IPC: H04W56/00 ,  H04L5/00 ,  H04W52/36 ,  H04W72/23 ,  H04W74/0833

Abstract: Methods, systems, and storage media are described for random access procedures triggered based on physical downlink control channel (PDDCH) orders. Other embodiments may be described and/or claimed.

公开(公告)号：US11838082B2

公开(公告)日：2023-12-05

申请号：US17993511

申请日：2022-11-23

Applicant: Apple Inc.

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

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0478 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0663

Abstract: An approach is described that includes receiving a CSI report, where the CSI report includes a channel quality indicator (CQI), a rank indicator (RI), and a precoding matrix indicator (PMI). The approach further includes constructing a precoding matrix based on a linear combination of a plurality of mutually orthogonal digital Fourier transformation (DFT) spatial beams, and determining a number of bits for the PMI of the precoding matrix. The approach also includes determining a space frequency matrix based, at least in part, on the number of bits for the PMI and the precoding matrix, and compressing the space frequency matrix. Finally, the approach includes determining a compressed PMI based, at least in part, on the space frequency matrix.

公开(公告)号：US11463999B2

公开(公告)日：2022-10-04

申请号：US16882675

申请日：2020-05-25

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Vadim Sergeyev ,  Gregory Morozov ,  Ilya Bolotin

IPC: H04W24/08 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L69/323

Abstract: Dynamic transmission of non-zero power channel state information resource signals and interference measurement resources is described. Such dynamic transmission reduces or eliminates a need to buffer and store channel and interference measurements The described approach also reduces the overhead due to transmission of those resources and enables flexible time-domain channel state information requests.

公开(公告)号：US20220060361A1

公开(公告)日：2022-02-24

申请号：US17418150

申请日：2020-03-13

Applicant: Apple Inc.

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

IPC: H04L27/26 ,  H04L5/00 ,  H04J13/00

Abstract: Communication in a wireless network using a phase-tracking reference signal (PT-RS) for orthogonal frequency division multiplexing (OFDM) includes determining one or more PT-RS groups of adjacent subcarriers in a resource allocation for a physical uplink shared channel (PUSCH) or a physical downlink shared channel (PDSCH), encoding data to be transmitted by the PUSCH or the PDSCH in data subcarriers within the resource allocation for the PUSCH or the PDSCH, and encoding phase-tracking reference signals within the one or more PT-RS groups of adjacent subcarriers.

公开(公告)号：US20200351845A1

公开(公告)日：2020-11-05

申请号：US16882675

申请日：2020-05-25

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Vadim Sergeyev ,  Gregory Morozov ,  Ilya Bolotin

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L29/08

Abstract: Dynamic transmission of non-zero power channel state information resource signals and interference measurement resources is described. Such dynamic transmission reduces or eliminates a need to buffer and store channel and interference measurements The described approach also reduces the overhead due to transmission of those resources and enables flexible time-domain channel state information requests.

公开(公告)号：US12156063B2

公开(公告)日：2024-11-26

申请号：US17427346

申请日：2020-02-14

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Bharat Shrestha ,  Debdeep Chatterjee ,  Gregory Morozov

IPC: H04W4/00 ,  H04W24/10

Abstract: An approach is described for a user equipment (UE) for enhanced machine-type communication (eMTC) in a connected mode, where the UE includes processor circuitry and radio front end circuitry. The processor circuitry is configured to perform a downlink (DL) quality measurement, and to generate a DL quality report based on the DL quality measurement, wherein a definition of the DL quality report matches a definition of quality report in Msg3. The radio front end circuitry is configured to transmit the DL quality report to a next generation base station (gNB).

公开(公告)号：US11653306B2

公开(公告)日：2023-05-16

申请号：US17267140

申请日：2019-08-08

Applicant: Apple Inc.

Inventor： Qiaoyang Ye ,  Debdeep Chatterjee ,  Gregory Morozov

IPC: H04L67/145 ,  H04W52/02 ,  H04W4/70 ,  H04W72/0446

CPC classification number: H04W52/0235 ,  H04L67/145 ,  H04W4/70 ,  H04W72/0446

Abstract: Techniques discussed herein can facilitate communication of group-based WUS(s) (Wake Up Signal(s)) for eMTC (enhanced Machine Type Communication) and/or NB (NarrowBand)-IoT (Internet of Things). One example embodiment is an apparatus configured to be employed in a UE (User Equipment), comprising: a memory interface; and processing circuitry configured to: determine a WUS group of a plurality of WUS groups, wherein the WUS group is associated with a first group WUS (Wake Up Signal) of a plurality of group WUSs; determine a starting subframe for the first group WUS; and monitor the starting subframe for the first group WUS, wherein the UE is configured to communicate via one or more of eMTC or NB (NarrowBand)-IoT.

公开(公告)号：US11558796B2

公开(公告)日：2023-01-17

申请号：US16865796

申请日：2020-05-04

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 ,  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 ,  H04W72/00 ,  H04W72/04 ,  H04W88/08 ,  H04W88/06 ,  H04W8/08 ,  H04W84/12 ,  H04W88/16

Abstract: Various embodiments are generally directed to improved channel quality information feedback techniques. In one embodiment, for example, an evolved node B (eNB) may comprise a processor circuit, a communication component for execution by the processor circuit to receive a channel quality index for a physical downlink shared channel (PDSCH), the channel quality index associated with a defined reference resource, and a selection component for execution by the processor circuit to select a modulation and coding scheme (MCS) for transmission over the PDSCH of user equipment (UE) data in one or more resource blocks, the selection component to compensate for a difference between a cell-specific reference signal (CRS) overhead of the defined reference resource and a CRS overhead of the one or more resource blocks when selecting the MCS. Other embodiments are described and claimed.