TD-SCDMA terminal radio frequency consistency testing method

A technology of TD-SCDMA and test method, which is applied in the field of TD-SCDMA mobile communication and TD-SCDMA terminal radio frequency conformance test, and can solve the problems such as difficult implementation of radio frequency front end and no measurement method

Active Publication Date: 2006-10-18
BEIJING STARPOINT TECH COMPANY
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For WCDMA and cdma2000 systems, this dynamic range is about 40dB, but the dynamic range of power stipulated by the TD-SCDMA standa

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
  • TD-SCDMA terminal radio frequency consistency testing method
  • TD-SCDMA terminal radio frequency consistency testing method
  • TD-SCDMA terminal radio frequency consistency testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The following describes the TD-SCDMA terminal radio frequency conformance test method of the present invention with reference to the accompanying drawings and in conjunction with preferred embodiments.

[0025] The consistency test method of the present invention samples the received terminal data and processes it twice to meet the dynamic range requirements specified by the standard. One of the processing is for noise and measuring the low-end power; the other processing is for the terminal transmitting signal, adjusting the RF front-end attenuation, and measuring the high-end power. Combine the results of the two measurements to obtain a power variation graph with a larger dynamic range. And a pass / fail function is provided to quickly determine whether the signal is completely within the range of the template on the display and is consistent with the protocol.

[0026] The PVT test item can be selected by the user to observe the transmission characteristics of the transmi...

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

A method for testing consistency of radio frequency at TC-SCDMA terminal includes sending out the first signal by sending end, setting radio and medium frequency attenuation ( RMFA ) at receiving end and carrying out data sampling (DS) after signal is attenuated, then making fine synchronization (FS ) calculating out power of synchronized signal to obtain emission power (EP) of sending end; sending out the second signal by sending end, removing off set RMFA at receiving end and carrying out DS on received signal, then making FS, calculating out power of synchronized signal to obtain closing power (CP) of sending end, combining obtained EP with obtained CP to obtain measurement value of power to time.

Description

Technical field [0001] The invention relates to the field of TD-SCDMA mobile communication technology, and specifically relates to the field of TD-SCDMA terminal radio frequency consistency testing. Background technique [0002] In today's mobile communications field, with the increasing requirements for wireless data services, wireless transmission rates, and reduction of wireless transmission costs, 3G technology and applications are developing rapidly. my country's independently developed TD-SCDMA standard and its application research progress has always been one of the key factors affecting my country's 3G process. The test of TD-SCDMA terminal equipment affects the large-scale production of terminal equipment, so it has become the focus of the industry chain, and it is also a weak link. As an important content of terminal radio frequency conformance testing, PVT (Power vs Time) testing plays an important role in terminal equipment research and development, production line te...

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
IPC IPC(8): H04B7/005
Inventor 金磊张云姜军张平
Owner BEIJING STARPOINT TECH COMPANY
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