Sr5500 wireless channel emulator spirent wireless channel emulator bringing the real world into the lab virtual drive test spirents virtual drive test lets you create or replay dynamic mobility scenarios in your lab. Wcdma drive test analysis data analysis mobile technology. Cdrom with external drive connected to the instrument. Wcdma mobility troubleshooting studies and enhancements degree programme communications engineering department department of communications and engineering supervisor prof. Get 3g dt training course with certification 3g wcdma dt drive test paramet. Drive test is performed mostly for characterization of propagation and fading effects in the channel. Wcdma bss cs drive test dt kpi measurement and analysis wcdma bss cs kpi.
Different sites of recent technology 2g, 3g, hspa, wcdma, long term evolution lte, wimax are analysed by drive testing with tems. We extend the concept to collaboration among our users helping to solve doubts, help each other in every possible way and to define the best telecom practices. Access to drive test data through tems investigation and tems automatic multi vendor support advanced neighbor analysis 18 tems making wireless better ericssonyyz additional features multi raster support advanced monte carlo simulations for both, wcdma and cdma afp from ericsson tems best in class prediction models. Drivetestenabled devices can log the current rank, number of transmit and receive paths in active use, together with the reported availability of antennas. The test script files can be transferred to or from an external pc. Once all the above mentioned configurations are done, the setup is ready to start with the measurements to obtain test results for different tx characteristics in accordance. Wcdma drive test analysis free download as powerpoint presentation. Post design drive test for site verification optimization.
Rf engineer or rf drive test engineers are commonly asked below written question. Wcdma mobility troubleshooting studies and enhancements. Wcdma radio network optimization guide huawei technologies co. Virtual drive test is more than a way to control the costs of drivetesting.
All is about prelaunch activities during optimization commercial traffic, subscribers using the network. Mobile user objective system muos each of the five satellites in the mobile user objective system muos constellation carries two payloads. Scribd is the worlds largest social reading and publishing site. By analyzing the drive test results, the main motive is to identify problems like less throughput, drop calls, handover failures in any. Future implementations will reflect the most recent 3gpp enhancements. Resorting to manual evaluation is only necessary in rare instances. Step by step drive test and post processing using tems and mapinfo abdul july 02, 2016 1 comments.
Drive test equipment drive test tools,ues, scanner and gps can be used the scanner measures all used carrierscells and their corresponding dl scrambling codes, ue only measures sc signals from the cells that the system has informedordered the ue through the bch neighbour list or via the measurement. They can also individually report the signal strength and quality from each of the devices antennas. Driv test is conducted for checking coverage criteria of a cell site with rf drive test tool. Wireless technologies the first comprehensive drive. Wolfspeed ptfc270101m v1 product and characteristics. Rf engineer interview questions drive test engineer. Rf engineer interview question should not be same all time due to new technologies coming day by. Step by step drive test and post processing using tems and. Singlecarrier wcdma specifications tested in wolfspeed production test fixture v dd 48 v, i dq 200 ma per side, p out 80 w avg. The object is to collect field data to optimize and adjust the prediction model for preliminary simulations.
Wcdma 3g dt drive test parameters on ascom tems investigation 17. Easy test script editing the test script files for each mobile phone or each test condition can be stored in hdd. The actual received signal strength indicator rssi obtained by conducting drive test measurement are compared to the received signal code power rscp of the cost231 hata propagation model. The genex series can work with many systems, such as gsm, wcdma, edge, cdma, and wimax.
Wolfspeed gtva263202fc v1 product and characteristics. Drive test equipment drive test tools,ues, scanner and gps can be used the scanner measures all used carrierscells and their corresponding dl scrambling codes, ue only measures sc signals from the cells that the system has informedordered the ue through the bch neighbour list or. Usb port for pctel seegull lx triband scanner usb port for hasp hl hardware key serial port for pctel seegull lx dualbandsingleband scanner whether wcdma or gsm window used in wcdma drive test wcdma radio parameters. Lte drive test parameters some important indicator lte drive test parameters. Knowledge of absolute rsrp provides the ue with essential information about the strength of cells from. Wcdma tems parameters investigation and drive testing 1. To measure wcdma bss cs kpi you need to use flowing software. Drive test engineer,tems,rf engineer,lte,2g resume in dl. The agilent e7476a w cdma umts drive test system is used to obtain rf coverage measurements for wireless communications networks using w cdma umts 3gpp technologies. The cost231 hata model is used in this study to predict the cell coverage for urban environment. Pdf wcdma radio network optimization guide table of.
Huawei genex probe for 4g,3g,2g drive test telco consultant. By connecting the usb printer to the vc200, the test result files. Drive testing lte 3 while the name drive test comes from the fact that the measurement equipment is generally driven in a vehicle, we should also mention that measuring indoor coverage is becoming increasingly important. Indoor performance measurements do not rely on views of the sky nor gps for positional information. Huawei genex probe for 4g,3g,2g drive test the genex probe and genex assistant for drive tests are part of the genex series. Gsm radio parameter details and score evaluation from. The data collected by drive test tool as log files is analyzed to evaluate various rf parameters of.
Eng abstract mobility is the key success area in wcdma technology. Drive test, worst cell, site survey,antennarigging. Get 3g dt training course with certification optimizationtrainingcoursecertification 3g wcdma dt drive. Unduh sebagai pptx, pdf, txt atau baca online dari scribd. Wcdma drive test analysis telecommunications standards. Wcdma 3g dt drive test course by telcoma training youtube. Rf optimisation remains one of the key challenges in any network.
The course aim to aware engineering candidates about rf survey, rf drive test, optimization, planning for gsmcdma and. The system can control up to four receivers simultaneously. They are used to verify and improve the performance of wireless networks worldwide, including 5g nr, lte, and public safety technologies. The acceptable values of rxlevel in a commercial gsm network should be above 95 dbm 10 dbm to 95dbm. Drive test is performed to verify if they meet the coverage objectives. Telecom 2g,3g,4g,rf lte drive test,optimization,ipv6 study. Rsrp is the most basic of the ue physical layer measurements and is the linear average power in watts of the downlink reference signals rs across the channel bandwidth for the resource elements that carry cell specific reference signals. Lte, wcdma, gsm, nbiot frequency bands up to 6 ghz, including a multignss receiver for uninterrupted location tracking more than ten technologies simultaneously in one scanner futureproof for upcoming 5g millimeterwave measurements. Drive test engineer,tems,rf engineer,lte,2g resume in dl, india october 2016. This video explains the concept of gsm drive testing with kpi parameters for 2g network performance optimization. Channel estimation in lte is based on reference signals like cpich functionality in wcdma reference signals position in time domain is fixed 0 and 4 for type 1 frame whereas in frequency. The developed technique reduces the dc power consumption at low level drive and at the same time compensates the nonlinear distortion at high power drive of. But it depends on your job duties for which postion you are hiring. In telecomhall commnunity open source doesnt just mean access to the source code.
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