Unlock instant, AI-driven research and patent intelligence for your innovation.

PDSCH (Physical Downlink Shared Channel) resources allocation method and device based on M-DFT-S-OFDM (M-Discrete Fourier Transform-S-Orthogonal Frequency Division Multiplexing)

A resource allocation and resource technology, applied in the field of communication, to achieve the effect of reducing signaling overhead

Pending Publication Date: 2020-11-17
BEIJING SAMSUNG TELECOM R&D CENT +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PAPR performance of M-DFT-S-OFDM is between DFT-S-OFDM and CP-OFDM, that is, the PAPR performance is better than CP-OFDM, but slightly worse than DFT-S-OFDM

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • PDSCH (Physical Downlink Shared Channel) resources allocation method and device based on M-DFT-S-OFDM (M-Discrete Fourier Transform-S-Orthogonal Frequency Division Multiplexing)
  • PDSCH (Physical Downlink Shared Channel) resources allocation method and device based on M-DFT-S-OFDM (M-Discrete Fourier Transform-S-Orthogonal Frequency Division Multiplexing)
  • PDSCH (Physical Downlink Shared Channel) resources allocation method and device based on M-DFT-S-OFDM (M-Discrete Fourier Transform-S-Orthogonal Frequency Division Multiplexing)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0025] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be unders...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a PDSCH (Physical Downlink Shared Channel) resources allocation method and device, and relates to the technical field of communication. Specifically, the method implemented at auser equipment end comprises the following steps: acquiring frequency domain resources allocation information and virtual resources allocation information in DFT (Discrete Fourier Transform); and determining PDSCH resources according to the frequency domain resources allocation information and the virtual resources allocation information in the DFT. According to the invention, PDSCH resources allocation in a high-frequency communication system based on MDFTSOFDM is realized, and signaling overhead can be reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular, to a method and equipment for PDSCH resource allocation in an M-DFT-S-OFDM-based high-frequency communication system. Background technique [0002] In the 3GPP LTE standard, the downlink uses the CP-OFDM (OFDM with aCyclic Prefix, orthogonal frequency division multiplexing with cyclic prefix) access technology with multi-carrier waveform characteristics, while the uplink uses the PAPR (Peak to Average Power Ratio, Peak-to-average power ratio), using DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, based on discrete Fourier transform spread spectrum) access technology with single-carrier waveform characteristics. Among them, for the DFT-S-OFDM access technology, the transmission signal is subjected to DFT transformation before being mapped to the frequency domain subcarrier, so that the time domain waveform has a single carrier...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/0453
Inventor 吴敏王轶付景兴孙霏菲
Owner BEIJING SAMSUNG TELECOM R&D CENT