公开(公告)号：US20220166580A1

公开(公告)日：2022-05-26

申请号：US17426387

申请日：2020-02-03

Applicant: Apple Inc.

Inventor： Jie ZHU ,  Gang XIONG ,  Daewon Lee

IPC: H04L5/00 ,  H04L27/26

Abstract: An approach is described for a method for a fifth generation (5G) wireless communication or a new radio (NR) system that includes the following steps. The method includes generating data samples associated with a sampling rate. The method further includes generating a waveform by populating a first slot and a second slot in a subframe of the waveform using the data samples, wherein slot durations of the first slot and the second slot in the subframe of the waveform equal respective durations of a first slot and a second slot in a subframe of a reference waveform to thereby align the first slot and the second slot in the subframe of the waveform with the respective first slot and second slot in the subframe of the reference waveform. The method further includes transmitting the waveform using front end circuitry, wherein the waveform is a single carrier waveform, and wherein the reference waveform is an orthogonal frequency division multiplexing (OFDM) waveform.

公开(公告)号：US20220094496A1

公开(公告)日：2022-03-24

申请号：US17420449

申请日：2020-01-06

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Jie ZHU ,  Yushu ZHANG ,  Daewon LEE ,  Guotong WANG

IPC: H04L5/00 ,  H04W72/04

Abstract: One or more computer-readable media (CRM) are disclosed. The CRM include instructions to, upon execution of the instructions by one or more processors of a base station, cause the base station to: generate a phase tracking reference signal (PT-RS) for phase shift compensation; and transmit the PT-RS across a physical downlink shared channel (PDSCH) using a single-carrier based waveform comprising a carrier frequency. The single-carrier based waveform may be SC-FDE or DFT-s-OFDM.

公开(公告)号：US20220078767A1

公开(公告)日：2022-03-10

申请号：US17419589

申请日：2020-02-03

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Yushu ZHANG ,  Daewon LEE ,  Jie ZHU ,  Seunghee HAN

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26

Abstract: An approach is described for a wireless communication for a fifth generation (5G) or new radio (NR) system. The wireless communication includes a gNode (gNB) configured to indicate a time domain resource allocation within one Discrete Fourier Transform (DFT) size in a downlink control information (DCI), and to transmit a physical downlink shared channel (PDSCH) with a Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform in accordance with the time domain resource allocation within the one DFT size.

公开(公告)号：US20200295896A1

公开(公告)日：2020-09-17

申请号：US16819849

申请日：2020-03-16

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Daewon LEE ,  Gregory MOROZOV ,  Yushu ZHANG ,  Jie ZHU

IPC: H04L5/00 ,  H04J3/02 ,  H04W72/04 ,  H04J13/00

Abstract: Devices, systems and methods for a fifth generation (5G) or new radio (NR) system comprising multiplexing, by a gNodeB (gNB), a physical broadcast channel (PBCH) and an associated demodulation reference signal (DMRS) in a time division multiplexing (TDM) manner; and transmitting, by the gNB, the PBCH by employing a Discrete Fourier Transform-spread-orthogonal frequency-division multiplexing (DFT-s-OFDM) waveform and its associated DMRS.

公开(公告)号：US20230231675A1

公开(公告)日：2023-07-20

申请号：US18189430

申请日：2023-03-24

Applicant: Apple Inc.

Inventor： Gang XIONG ,  Dae Won LEE ,  Gregory MOROZOV ,  Yushu ZHANG ,  Jie ZHU

IPC: H04L5/00 ,  H04J13/00 ,  H04W72/0453 ,  H04J3/02

CPC classification number: H04L5/0048 ,  H04J13/0059 ,  H04W72/0453 ,  H04J3/02

Abstract: Devices, systems and methods for a fifth generation (5G) or new radio (NR) system comprising multiplexing, by a gNodeB (gNB), a physical broadcast channel (PBCH) and an associated demodulation reference signal (DMRS) in a time division multiplexing (TDM) manner; and transmitting, by the gNB, the PBCH by employing a Discrete Fourier Transform-spread-orthogonal frequency-division multiplexing (DFT-s-OFDM) waveform and its associated DMRS.

公开(公告)号：US20220078825A1

公开(公告)日：2022-03-10

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: H04W72/12 ,  H04W72/04

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.