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

Data transmission method and distributed base station

A data transmission method and technology of distributed base stations, which are applied in the directions of network traffic/resource management, electrical components, multi-frequency code systems, etc., can solve the problems of large data transmission volume and high transmission cost, and reduce data volume and transmission cost. , the effect of reducing the amount of transmitted data

Active Publication Date: 2012-11-28
DATANG MOBILE COMM EQUIP CO LTD
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a data transmission method and a distributed base station, which can solve the problems of large data transmission volume and high transmission cost

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
  • Data transmission method and distributed base station
  • Data transmission method and distributed base station
  • Data transmission method and distributed base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to figure 1 , showing the first embodiment of the data transmission method of the present application. In this embodiment, the baseband unit transmits data to the remote radio frequency unit, including the following steps:

[0036] Step 101, transmit the frequency domain data after baseband processing in the baseband unit to the remote radio frequency unit through the IR interface.

[0037] Step 102, the remote radio frequency unit converts the frequency domain data to obtain time domain data.

[0038] It can be understood that the conversion of the aforementioned time-domain data and frequency-domain data can be obtained through Fourier transform, Z transform, and Laplace transform. In the present application, it is preferable to use Fast Fourier Transform (FFT) or Discrete Fourier Transform (DFT) to realize the conversion of time domain and frequency domain data.

Embodiment 2

[0039] refer to figure 2 , showing the second embodiment of the data transmission method of the present application. In this embodiment, the remote radio frequency unit transmits data to the baseband unit, including the following steps:

[0040] In step 201, the remote radio frequency unit converts the time-domain data processed by the digital intermediate frequency to obtain frequency-domain data.

[0041] It can be understood that the conversion of the foregoing time-domain data and frequency-domain data can be obtained through fast Fourier transform.

[0042] Step 202, transmit the frequency domain data to the baseband unit through the IR interface.

[0043] It can be understood that, for the foregoing first and second embodiments, frequency domain data may also be compressed before data transmission. That is, both the baseband unit and the remote radio frequency unit can compress the frequency domain data before transmission. Correspondingly, when the compressed freque...

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 data transmission method and a distributed base station, and problems of large amount of data transmission quantity and high transmission cost can be solved. The method is used for data transmission between a base band unit (BBU) and a remote radio unit (RRU) of the distributed base station. The method comprises that the data transmitted between the BBU and RRU is frequency domain data, and time domain to frequency domain transition of data is performed in the RRU. The method uses the frequency domain data to transmit, and compared with transforming to the time domain data, under a circumstance that the data is not compressed, transmitted data size between the BBU and the RRU can be reduced, thereby reducing transmission cost and reducing requirement of bandwidth.

Description

technical field [0001] The present application relates to the technical field of wireless data processing, in particular to a data transmission method and a distributed base station. Background technique [0002] The base station equipment (NodeB) in the remote baseband system of TD-SCDMA is a distributed base station equipment, including a baseband unit (BBU, Base Band Unit) and a remote radio unit (RRU, Remote Radio Unit), usually used between BBU and RRU fiber optic connection. One BBU and one RRU can be connected through a pair of optical fibers. In order to meet the requirements of system expansion and network structure diversity, the Ir interface (interface between BBU and RRU) protocol has expanded the connection between BBU and RRU, including multiple The RRU serves different connection modes such as a star connection, a chain connection, and a ring connection between the same BBU and the BBU. [0003] The Ir interface protocol supports the transmission of all vali...

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): H04L27/26H04W28/06H04W88/08
Inventor 王浩娟蒋一鸣
Owner DATANG MOBILE COMM EQUIP CO LTD