Wcdma drive test analysis data analysis mobile technology. Get wireless telecom training through worlds finest expert hd videos by telcoma. Therefore for 3g services, new optimization methods are required to be applied on totally new radio parameters for carrying out optimization, it should be checked that all sites are in working. But it depends on your job duties for which postion you are hiring. Solution for radio optimisation in 3g service new challenges are there for qos, because of new wcdma radio interface in comparison to gsm.
Drive test plan, procedure and output for gsm the result of drive test is a collection of data files which has lat, long, received signal strength indicator rssi at that point and the frequency. Dec 30, 2016 remember that rssi is only measured at those symbol times during which rs res are transmitted we do not have to take into the count dtx so, when there is no traffic, and assuming only the reference symbols are transmitted there are 2 of them within the same symbol of a resource block from a single tx antenna then the rssi is generated by only the 2 reference symbols so the result becomes. Wcdma tems parameters investigation and drive testing. Wcdma drive test analysis free download as powerpoint presentation.
Wideband code division multiple access and the solution was adopted. Gsm radio parameter details and score evaluation from drive test dt end radio parameters. Remember that rssi is only measured at those symbol times during which rs res are transmitted we do not have to take into the count dtx so, when there is no traffic, and assuming only the reference symbols are transmitted there are 2 of them within the same symbol of a resource block from a single tx antenna then the rssi is generated by only the 2 reference symbols so the result becomes. Wcdma tems parameters investigation and drive testing 1. Testing with voice service greatly simplifies the testing procedure and during analysis. 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. Radio network parameters 861553hsd 101 0210 uen mo class name parameter. The course aim to aware engineering candidates about rf survey, rf drive test, optimization, planning for gsmcdma and wcdma networks and provide them depth practical knowledge to carried out rf survey and rf drive test. Indoor performance measurements do not rely on views of the sky nor gps for positional information.
Main elements involved in radio network are mobile station and base transceiver station. Gsm radio parameter details and score evaluation from. Gps support is needed in the setup for finding the route of the rf drive test testing. Jul 02, 2016 step by step drive test and post processing using tems and mapinfo abdul july 02, 2016 1 comments several functions of drive test. Performing an lte drive test is an important part of how wireless carriers determine whether their networks are performing well and get a glimpse into their competitors network performance. Pdf on oct 7, 2005, azizi othman and others published 3g optimization. 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. Mar 11, 2016 get 3g dt training course with certification 3g wcdma dt drive test paramet. Collection of the input parameters like requirement of capacity, coverage and. What is wideband code division multiple access wcdma.
Used in more than 180 countries worldwide, tems investigation is the industry standard tool for troubleshooting, verification, optimization and maintenance of wireless networks with emphasis on the practical considerations. Rsrp is the most basic of the ue physical layer measurements and is the linear average power in watts of the downlink. Mar 14, 2017 test types and parameters for lte driving testing 4g lte drive test. I have include wcdma and lte on top of current gsm version.
Analyzing customer complaint of certain operator in their home or office area finding problem in. The aim of this paper is study of the drive test process and rf planning in mobile communication. The location information lat, long is used by the post processing tools as a reference of correlation between the measured vs. Scribd is the worlds largest social reading and publishing site. Get 3g dt training course with certification 3g wcdma dt drive test paramet. Get 3g dt training course with certification 3g wcdma dt drive. The data collected by drive test tool as log files is analyzed to evaluate various rf parameters of. Walk test rftelecom consultant in united conduct rf technical site surveys. Oct 21, 2012 wideband code division multiple access wcdma is a thirdgeneration 3g standard that employs the directsequence code division multiple access dscdma channel access method and the frequencydivision duplexing fdd method to provide highspeed and highcapacity service. For rf drive testing particular route and proper sim with multiple or single rat support is required common rats are gsm, wcdma,lte.
Rf planning and drive test a cell can be defined as the area covered by one sector. Wcdma 3g dt drive test course by telcoma training youtube. Pdf telecom 2g 3g 4g rf ipv6 study materials rf survey ibs. Lte drive test parameters telecom knowledge and experience. Download dt drive test engineer material pdf be telecom. Telecom basic questions telecom 2g,3g,4g,rf lte drive test. Lte drive test parameter introduction linkedin slideshare. Receiverbased systems give a complete overview of rf activity but cannot. Drive test plan, procedure and output for gsm teletopix. Basic parameter of wcdma basic parameters of wcdma. Rf engineer interview questions drive test engineer. Lte drive test parameters telecom 2g,3g,4g,rf lte drive. Dari data yang telah diperoleh tersebut kita dapat mengetahui kondisi jaringan di suatu daerah.
Note that download time duration decreases and throughput increases with. In the wcdma multi evaluation application, the user needs to configure the scenario so that the combined signal path, is controlled by wcdma sig1 in order to. Specified in 3gpp release 8, the air interface for lte combines ofdma based modulation and multiple access. Rxlevel represents received signal strength of gsm network. Quality issues identification and rx lev, rx qual, tch blocking, sdcch drop,hoissues, call drop problems, and call set up issues analysis. Step by step drive test and post processing using tems and. Learn the different types of rf drive tests such as ssvscft, dynamic, and. Get 3g dt training course with certification optimizationtrainingcoursecertification 3g wcdma dt drive. Driv test is conducted for checking coverage criteria of a cell site with rf drive test tool. Telcoma global 3gwcdma dt drive test parameters on.
Wcdma 3g dt drive test parameters on ascom tems investigation 17. Rsrp dbm rssi dbm 10log 12n where rssi received signal strength indicator n. They can also individually report the signal strength and quality from each of the devices antennas. Oct 27, 2015 wcdma tems parameters investigation and drive testing 1. Mar 30, 2016 4g lte drive test parameter drive test merupakan suatu kegiatan untuk mengambil data collecting sebuah jaringan network dengan menggunakan software dan hardware tertentu. Drivetestenabled devices can log the current rank, number of transmit and receive paths in active use, together with the reported availability of antennas. Lte drive test data can be analyzed during the drive test process as it is displayed on the screen. Lte is built on an all new radio access network based on ofdm orthogonal frequency division multiplexing technology. A practical network will have cells of no geometric shapes. Rf engineer or rf drive test engineers are commonly asked below written question.
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