CPRI data compression and transmission method and system

A technology of interface data and transmission method, applied in transmission system, network traffic/resource management, electrical components, etc., can solve the problems of equipment complexity and cost increase, reduce complexity and operation and maintenance difficulty, save cost, protect The effect of equipment investment

Inactive Publication Date: 2017-01-04
WUHAN HONGXIN TELECOMM TECH CO LTD
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of antennas and the further increase of bandwidth, the number of required optical ports will be more, so the complexity and cost of equipment will increase

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
  • CPRI data compression and transmission method and system
  • CPRI data compression and transmission method and system
  • CPRI data compression and transmission method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0050] figure 1It is a structural diagram of the CPRI interface data compression transmission system of the embodiment. The CPRI interface data compression transmission system includes three parts: compression module, CPRI interface module and decompression module, which can be implemented by FPGA (Field Programmable Gate Array, Field Programmable Gate Array). The functions of these three modules in this system are as follows: The compression module compresses the baseband data from 15bit to 6bit through an adaptive quantization compression algorithm, and obtains a 4bit compression factor K at the same time. The CPRI interface module arranges the compressed data and the compression factor K according to the protocol and then transmits them. The decompression module is the inverse process of the compression module, which decompresses the compressed d...

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 CPRI (Common Public Radio Interface) data compression and transmission method and system. The CPRI data compression and transmission method comprises the steps of receiving input baseband I/Q data, finding the maximum value of continuous N sample points and determining the value of a compression factor K of sample data through the maximum value; caching the received baseband I/Q data and performing time sequence alignment for the cached data and the compression factor K; performing compression operation, including, performing corresponding cut-compression for the baseband I/Q data based on the value of the compression factor K until the data are compressed into 6-bit data; transmitting the compressed 6-bit I/Q data and a 4-bit compression factor K to a to-be-decompressed terminal through the CPRI according a protocol; and performing decompression operation for the compressed 6-bit I/Q data based on the value of the compression factor K so as to recover the data into 15-bit I/Q data. By adoption of the CPRI data compression and transmission method and system, the data transmission capability of the CPRI can be improved, the technology implementation difficulty and complexity can be reduced and the cost can be saved under the condition of meeting the system performance indexes.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a CPRI interface data compression transmission method and system. Background technique [0002] With the development of 4G communication technology, the demand for 5G communication is approaching day by day, and the problem of limited transmission bandwidth of CPRI (Common Public Radio Interface) interface becomes more and more prominent. 5G's demand for CPRI interface transmission bandwidth is far greater than 4G. In 5G communication application scenarios, the demand for CPRI interface transmission bandwidth far exceeds the current 10Gbps configuration. The huge CPRI interface transmission bandwidth puts higher requirements on the optical port, and the existing optical port rate basically cannot meet 5G communication applications. [0003] The CPRI protocol stipulates that the basic frame length of data transmission is 1 Tc=1 / 3.84 MHz=260.416667ns, a basic frame contains 1...

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): H04W28/06H04L29/06
CPCH04W28/06H04L69/04
Inventor 赵雨李昌元周世军杨浩周博海王艳欢
Owner WUHAN HONGXIN TELECOMM 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