Device and method of road measurement for SCDMA network

A drive test and network technology, applied in digital transmission systems, electrical components, error prevention, etc., to achieve the effects of long continuous use, accurate measurement, and low test costs

Inactive Publication Date: 2009-06-24
BEIJING XINWEI TELECOM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The SCDMA system is a TDD code division multiple access system, which is different from GSM, IS-95 or CDMA2000. Currently, there is no drive test product for the SCDMA system on the market. In order to test the relevant parameters of the network performance simultaneously, and simultaneously An effective SCDMA network drive test device and method are needed for the multi-serial port problems and long-term drive test power supply problems brought about by testing network performance parameters.

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  • Device and method of road measurement for SCDMA network
  • Device and method of road measurement for SCDMA network
  • Device and method of road measurement for SCDMA network

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Embodiment Construction

[0027] figure 1 Shows the hardware structure of the drive test device of the present invention, wherein the GPS module is converted from TTL to RS232 level by the interface conversion circuit, and then communicates with the notebook via USB to multiple serial port devices with multiple mobile phones; multiple mobile phones and GPS are connected by The power conversion circuit uses the 12V car cigarette lighter as the power supply to supply power to them respectively. In addition, multiple test mobile phones can also share one antenna and attenuator through a power divider, and place the antenna together with the GPS antenna on the roof of the vehicle.

[0028] In order to further simplify the connection of the test device and facilitate the carrying of the test equipment, it is also necessary to design a practical outer box for the drive tester. The outer box contains all components except the notebook. When in use, the notebook is placed beside the tester, and the cabinet c...

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Abstract

The present invention proposes a SCDMA network drive test method, which adopts the parallel mode of the auxiliary thread and the main thread, and comprises the following steps: (1) after the test starts, the PC receiving buffer is initialized, and the thread control variable is initialized; (2) the mobile phone is tested to send data; GPS also sends position data; (3) PC receives data through USB to multiple serial ports, if the thread is still running, then reads the serial port asynchronously, and then stores the data in the buffer; (4) performs data analysis, If valid data is parsed, a message is sent to the main thread to notify the interface to refresh, and the message includes the starting position and length of the data. The invention can provide uninterrupted power supply to the GPS receiver, can more accurately measure the performance of the SCDMA outdoor network, and can also support various tests of multiple mobile phones.

Description

technical field [0001] The invention relates to a drive test device and method for network performance testing of a wireless communication access system, in particular to a SCDMA network drive test device and method. Background technique [0002] The current wireless network drive test is generally completed by a drive tester, which includes a display function unit, a storage function unit, a processing function unit, and a data terminal equipment (DTE). Specifically, its display, storage, and processing functions are realized by a notebook computer or a PDA, and the DTE is a test mobile phone and a GPS receiver. The test module is installed on a laptop computer for data collection, processing and display. The test mobile phone is an off-the-shelf product of the purchased manufacturer. The method of the drive test is to select the test route, connect each device, record the data, and finally perform post-processing of the data. [0003] The SCDMA system is a TDD code divis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/08H04L1/00
Inventor 崔丽艳李宝忠蒋伯峰刘琛杜庆强
Owner BEIJING XINWEI TELECOM TECH
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