Supercharge Your Innovation With Domain-Expert AI Agents!

A method and device for generating an OFDM baseband signal

A technology of baseband signal and configuration information, applied in the field of communication, can solve the problem that the high-level signaling indicates that the frequency offset cannot be satisfied, etc.

Active Publication Date: 2021-06-29
VIVO MOBILE COMM CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for generating an OFDM baseband signal, which is used to solve the problem that the frequency offset indicated by the existing high-level signaling cannot satisfy the subcarrier 0 alignment of the commen RB

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
  • A method and device for generating an OFDM baseband signal
  • A method and device for generating an OFDM baseband signal
  • A method and device for generating an OFDM baseband signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] figure 2 A schematic flow diagram of a method for generating an OFDM baseband signal provided by an embodiment of the present invention is shown, as shown in figure 2 As shown, the signal generation method may include:

[0069] S201. The transmitting end device acquires configuration information of a first subcarrier interval, a frequency of a first carrier, and first indication information.

[0070] The sending end device in the embodiment of the present invention can be figure 1 A sending end device in the shown communication system, for example, a base station.

[0071] Wherein, the above-mentioned first subcarrier spacing is the subcarrier spacing corresponding to the first resource set transmitted on the first carrier, and the first resource set includes at least one Common RB. The above first indication information is used to indicate the target frequency offset of the OFDM baseband signal corresponding to the Common RB included in the first resource set. Th...

example 1

[0094] Example 1: If the frequency of the first carrier belongs to FR1, the configuration information of the first subcarrier spacing in the numerology of the first resource set μ={0,1,2}, that is, the subcarrier spacing is 15 / 30 / 60kHZ, when the first frequency offset k0 of the high-level configuration is {-6, 0, 6}, substitute k0 into formula 6 to calculate Calculated The sets of are respectively {-6, 0, 6}, {-3, 0, 3}, {-1.5, 0, 1.5}.

example 2

[0095] Example 2: If the frequency of the first carrier belongs to FR2, the configuration information of the first subcarrier spacing in the numerology of the first resource set μ={2,3,4}, that is, the subcarrier spacing is 60 / 120 / 240kHZ, and the upper layer When the configured first frequency offset k0 is {-6, 0, 6}, substitute k0 into formula 7 to calculate Calculated The sets of are respectively {-6, 0, 6}, {-3, 0, 3}, {-1.5, 0, 1.5}.

[0096] 2. The second possible implementation method:

[0097] Optionally, the above-mentioned first indication information is used to indicate an offset state corresponding to the target frequency offset. There are mainly two ways to achieve this.

[0098] 1), the first implementation method

[0099] In the embodiment of the present invention, the aforementioned target offset includes a frequency offset value and an offset state, and the frequency offset value is a specific offset, which is an absolute value of the target offset and is...

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

Embodiments of the present invention provide a method and device for generating OFDM baseband signals, which relate to the communication field and are used to solve the problem that the frequency offset indicated by the existing high-layer signaling cannot satisfy the subcarrier 0 alignment of Common RB. The method includes: acquiring configuration information of the first subcarrier interval, the frequency of the first carrier, and first indication information; the first subcarrier interval is the subcarrier interval corresponding to the first resource set transmitted on the first carrier, and the first indication The information is used to indicate the target frequency offset of the OFDM baseband signal corresponding to the common resource block contained in the first resource set, and the target frequency offset is the center frequency point of the first carrier and the frequencies of all common resource blocks in the first resource set The frequency offset between the center frequency points of the bandwidth; according to the configuration information, the frequency of the first carrier and the first indication information, determine the target frequency offset; according to the target frequency offset and the data symbols carried on the common resource block , to generate an OFDM baseband signal.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for generating an Orthogonal Frequency Division Multiplexing (OFDM) baseband signal. Background technique [0002] Currently, in the 5G NR system, the subcarrier spacing SCS (subcarrier spacing) of the common resource block (Common RB) carried on the carrier can be set to 15*(2^n)kHz, where n can be a negative number. That is to say, in the NR system, the SCS can be set to: 3.75kHz, 7.5kHz, 15kHz, 30kHz, 60kHz, 120kHz, 240kHz, etc. Since these SCSs do not completely exhibit an integer multiple relationship, therefore, subcarrier 0 of the Common RB transmitted by different SCSs on the same carrier is likely to have a certain frequency offset. However, in the existing OFDM baseband signal generation process, it is necessary to ensure the alignment of subcarrier 0 in all Common RBs transmitted in different SCSs on the same carrier. [0003] In ...

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 Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0007H04L5/0008H04L5/0092
Inventor 吴凯刘思綦刘昊
Owner VIVO MOBILE COMM CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com