公开(公告)号：US11764869B2

公开(公告)日：2023-09-19

申请号：US17447463

申请日：2021-09-13

Applicant: APPLE INC.

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

IPC: H04B7/212 ,  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：US11483842B2

公开(公告)日：2022-10-25

申请号：US16067929

申请日：2016-12-23

Applicant: Apple Inc.

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

IPC: H04W72/08 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0417

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：US20210359742A1

公开(公告)日：2021-11-18

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 ,  H04W72/12 ,  H04W72/04

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：US11121768B2

公开(公告)日：2021-09-14

申请号：US16349960

申请日：2018-01-04

Applicant: APPLE INC.

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

IPC: H04J3/00 ,  H04B7/26 ,  H04L27/26 ,  H04W56/00

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) 5 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：US10965351B2

公开(公告)日：2021-03-30

申请号：US16399731

申请日：2019-04-30

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Yuan Zhu ,  Gregory V. Morozov

IPC: H04B7/0456 ,  H04L25/02 ,  H04L5/00 ,  H04B7/06

Abstract: A method comprises configuring a transmission mode for a user equipment (UE) based on user equipment specific reference signals (UE-RS) and configuring one or more precoding resource groups; and providing a dynamic indication to indicate which precoding resource group is valid for a physical downlink shared channel.

公开(公告)号：US10939321B2

公开(公告)日：2021-03-02

申请号：US16126999

申请日：2018-09-10

Applicant: APPLE INC.

Inventor： Alexei Davydov ,  Seung Hee Han ,  Debdeep Chatterjee ,  Hong He ,  Gregory V. Morozov ,  Ajit Nimbalker ,  Fatemeh Hamidi-Sepehr ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W28/02

Abstract: Technology for a user equipment (UE) operable to determine a transport block size (TBS) is disclosed. The UE can determine a number of assigned resource elements (REs) in one or more symbols for a transport block. The UE can determine a reference number of REs per physical resource block (PRB) in the transport block based on a reference number of REs for the transport block corresponding to each PRB and an assigned number of PRBs for the transport block. The UE can determine a TBS for the transport block based at least on the reference number of REs per PRB in the transport block. The UE can encode information in a selected transport block for transmission via a physical uplink shared channel (PUSCH) to a Next Generation NodeB (gNB) in accordance with the TBS determined at the UE.

公开(公告)号：US20250158705A1

公开(公告)日：2025-05-15

申请号：US19020244

申请日：2025-01-14

Applicant: APPLE INC.

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

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

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：US12301337B2

公开(公告)日：2025-05-13

申请号：US17287081

申请日：2019-10-31

Applicant: Apple Inc.

Inventor： Guotong Wang ,  Alexei Davydov ,  Avik Sengupta ,  Sameer Pawar ,  Gregory V. Morozov ,  Yushu Zhang

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/23

Abstract: A service device (e.g., a user equipment (UE), a new radio NB (gNB), or other network component or network management component) can process or generate a Downlink Control Information (DCI) that schedules a Physical Uplink Shared Channel (PUSCH) transmission in a PUSCH. The PUSCH transmission can be generated based on a Demodulation Reference Signal (DMRS) according to a Discrete Fourier Transform (DFT) spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform in uplink. A sequence of the DMRS can be generated based on a Gold sequence and a Pi/2 Binary Phase-Shift Keying (BPSK) modulation.

公开(公告)号：US12167444B2

公开(公告)日：2024-12-10

申请号：US17950266

申请日：2022-09-22

Applicant: Apple Inc.

Inventor： Alexei Davydov ,  Seunghee Han ,  Gang Xiong ,  Gregory V. Morozov ,  Yushu Zhang ,  Joonyoung Cho ,  Dae Won Lee ,  Yongjun Kwak

IPC: H04W74/00 ,  H04L5/00 ,  H04W74/0833

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 may comprise a first circuitry and a second circuitry. The first circuitry may be operable to process a message comprising an indicator to indicate a number of contention based physical random access channel (PRACH) preambles within a PRACH occasion per Synchronization Signal Block (SSB). The second circuitry may be operable to generate a first PRACH occasion, based on the indicator.

公开(公告)号：US11832267B2

公开(公告)日：2023-11-28

申请号：US17265764

申请日：2019-08-09

Applicant: APPLE INC.

Inventor： Debdeep Chatterjee ,  Gregory V. Morozov ,  Qiaoyang Ye

IPC: H04W72/23 ,  H04W4/80 ,  H04W76/27 ,  H04W56/00

CPC classification number: H04W72/23 ,  H04W4/80 ,  H04W56/0045 ,  H04W76/27

Abstract: Technology for a low mobility user equipment (UE) operable to perform uplink (UL) transmissions using configured grant (CG) physical uplink shared channel (PUSCH) resources is disclosed. The UE can decode a CG PUSCH resource configuration from an eNodeB while the low mobility UE is in a radio resource control (RRC) connected state. The CG PUSCH resource configuration can indicate CG PUSCH resources for the low mobility UE after the low mobility UE transitions from the RRC connected state to an RRC idle state. The UE can transition from the RRC connected state to the RRC idle state. The UE can encode data packets for transmission over a PUSCH to the eNodeB using the CG PUSCH resources while the low mobility UE is in the RRC idle state.