Multi-channel DFE digital communication system and 5G signal return system

A communication system and multi-channel technology, which is applied in the field of multi-channel DFE digital communication system and 5G signal backhaul system, can solve the problems of small channel spacing, tight spectrum resources, and difficulty in meeting the large bandwidth requirements of the bearer network, so as to improve the bandwidth. Utilization, the effect of reducing inter-symbol interference

Active Publication Date: 2020-09-08
JIANGSU HENGTONG TAIHEZI TECH CO LTD +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional microwave frequency band (6-42GHz) has limited spectrum resources and small channel spacing (the current maximum channel spacing in China is 28MHz), which makes it difficult to meet the large bandwidth requirements of LTE base stations for bearer networks.

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
  • Multi-channel DFE digital communication system and 5G signal return system
  • Multi-channel DFE digital communication system and 5G signal return system
  • Multi-channel DFE digital communication system and 5G signal return system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The 10Gps data is received from the optical network and divided into two channels. The rate of each channel is 5Gbps. After 64QAM modulation, the symbol rate of each channel is 834M. After 2 times interpolation, the signal spectrum of each channel is reduced to 417M, and the spectrum interval is widened to 418M. The channel width is 83.6M, and the channel spacing is 100M. The frequency spectrum is moved through DUC, and 5 channels are used for transmission. After aggregation, two 500M DAs are sent to the antenna for transmission. The signal received by the antenna converts the analog signal into a digital signal through two 500M ADs. After de-aggregation, the digital signal is divided into 5 channels with a channel interval of 100M. The signal is moved to the vicinity of the 0-100M frequency through DDC. After 2 The symbol rate of each channel is extracted and transformed into 834M, after 64EQAM demodulation, the data rate of each channel is 5Gbps, the two MAC processes ...

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 discloses a multichannel DFE digital communication system and a 5G signal return system, and the system comprises a digital front end which comprises an uplink path and a downlink path;wherein the uplink path comprises a plurality of uplink channels, and each uplink channel comprises an uplink Nyquist filtering module, an uplink interpolation module, an uplink post-interpolation filtering module, an uplink DUC and an uplink digital conversion module which are arranged in sequence; wherein the downlink path comprises a plurality of downlink channels, and each downlink channel comprises a downlink Nyquist filtering module, a downlink extraction module, a downlink extraction pre-filtering module, a downlink DDC and a downlink digital conversion module which are arranged in sequence. The multi-channel DFE digital communication can be realized, the intersymbol interference of the system is reduced, and the bandwidth utilization rate of the backhaul system is improved.

Description

technical field [0001] The invention relates to the field of 5G high-speed communication, in particular to a multi-channel DFE digital communication system and a 5G signal return system. Background technique [0002] For the 5G bearer network, there are fronthaul, midhaul and backhaul. Such as figure 1 As shown, the 5G base station is restructured into three parts: AAU, DU, and CU. According to specific scenarios and requirements, DU and CU can be deployed together or separately. When deployed separately, there will be more so-called intermediate transmission. up. The data transmission between AAU and DU is fronthaul, between DU and CU is midhaul, and the part of CU accessing the core network is backhaul. [0003] Backhaul technology usually adopts wireless backhaul and optical fiber backhaul. Most of China uses optical fiber backhaul, and wireless backhaul is only used in a few emergency scenarios. The reason is that the reliability of optical fiber backhaul is stronge...

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): H04L25/03
CPCH04L25/03006H04L25/03159Y02D30/70
Inventor 曹会扬姚远孙义兴侯树海潘红舟田宝珠陈姗
Owner JIANGSU HENGTONG TAIHEZI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap