Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Terminal up synchronous test method and device

A test device and terminal technology, which is applied in transmission monitoring, electrical components, transmission systems, etc., to achieve the effects of easy use, reduced complexity, and reduced errors

Inactive Publication Date: 2011-05-18
BEIJING XINWEI TELECOM TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the field of uplink synchronization testing, there has been no dedicated testing equipment to test and analyze the uplink synchronization of terminals

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
  • Terminal up synchronous test method and device
  • Terminal up synchronous test method and device
  • Terminal up synchronous test method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] Referring to the accompanying drawings, the test method and test device for realizing uplink synchronization of CDMA terminals in a CDMA system will be described below.

[0057] The test connection diagram is as follows figure 1 Shown:

[0058] The block diagram of the test device is as follows: figure 2 As shown, the functions and functional relationships of each module are as follows:

[0059] RF module RF:

[0060]The radio frequency unit of the test device is mainly composed of a receiver (Receiver) and a transmitter (Transmitter), and can work at any frequency within the specified frequency band. The radio frequency unit is mainly responsible for the transmission and conversion between the air radio frequency signal and the baseband signal. Send out; or down-convert the RF signal received from the antenna port into a baseband digital signal suitable for baseband processing and control, and perform corresponding transmit power and receive gain control.

[0061...

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 relates to a method for testing the ascending synchronization of base station and a relative tester, wherein said tester comprises a radio module, a baseband module, a power module, a control module and a data processing module; said control modules controls the operations of each module, processes the air interface protocol of tested base station; the control module reads ascendingsynchronous shift adjusting information of tested terminal from the baseband module, to transmit said adjusting value to the data processing module to be recorded and analyzed by the data processing module; the control module reads ascending synchronous shift adjusting time from the data processing module, to control the send time of ascending signal of tester. The invention can shorten testing time, improve the reliability and reduce the cost.

Description

technical field [0001] The present invention relates to a test method and a test device for testing uplink synchronization, more precisely, relates to a test method and a test device capable of detecting whether a terminal under test has the ability to realize CDMA uplink synchronization and its performance. Background technique [0002] At present, mobile communication is mainly based on CDMA technology. CDMA communication system has many advantages, such as good anti-interference performance, strong anti-multipath fading ability, large system capacity, high frequency utilization rate, and so on. To realize these advantages of CDMA, there is an important problem to be solved, that is, self-interference problem. The downlink of CDMA is generally synchronous for users, and the interference of downlink due to orthogonality is greatly reduced. As far as uplink synchronization is required, existing CDMA communication systems are generally divided into asynchronous CDMA communic...

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): H04B17/00H04B17/17H04B17/345
Inventor 刘昀岳彦生郑瑜生
Owner BEIJING XINWEI TELECOM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com