Lte drive test parameters telecom knowledge and experience. Common performance issues are as follows i voice call performance ii cs video call performance iii ps call performance iv intersystem handover performance call performance may be poor due to poor coverage. Coverage, capacity and frequency planning in gsm networks. 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. Prisma ran test solutions, designed to accelerate multistandard endtoend network verification, have already been chosen by leading network manufacturers to validate network functionality and performance across 4g, 3g and 2g, and to ensure a seamless user experience when handing over between different radio access technologies. Indoor performance measurements do not rely on views of the sky nor gps for positional information. Pdf rf planning and optimization in gsm and umts networks. Handover between two rats, for example between gsm and wcdma. For each drive test a team of two people should get involved. There are multiple types of lte drive tests, as well as specific parameters and requirements that should be met for drive tests. Performance analysis integration of new sites and change parameters of existing sites marketing benchmarking performance analysis. 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. Naeem ashraf mobile telecommunication related drive test.
With drive test measurement, key performance indicators kpi can be validated. Telecom 2g,3g,4g,rf lte drive test,optimization,ipv6 study materials. Telecom 2g,3g,4g,rf lte drive test,optimization,ipv6 study. 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. Dropped call handover with same radio access technologyrat for example gsm. Rf drive test measurements may include but not limited to following. During dt, rno teams use specific equipment supported by global positioning system gps, handset and laptop to check the network performance for a specific geographic area. Pdf telecom 2g 3g 4g rf ipv6 study materials rf survey ibs. Every alive network needs to be under continues control to maintainimprove the performance. Lte is built on an all new radio access network based on ofdm orthogonal frequency division multiplexing technology. To check qos of licensees mobile networks test equipment. Main elements involved in radio network are mobile station and base transceiver station. Definition of quality of service parameters and their computation etsi ts 102 250 3 part 3. 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.
The measurement process should be stopped the car stops eg near traffic lights or whenever the sampling and measurements look suspect. Wcdma tems parameters investigation and drive testing. Rf planning and drive test a cell can be defined as the area covered by one sector. This course of lte drive test covers the process of drive test, parameters of dt and analysis of log files etc. Optimization is basically the only way to keep track of the network by looking deep into statistics and collectinganalyzing drive test data. 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.
Trx test per sector trx is a equipment which is using for. Analyzing customer complaint of certain operator in their home or office area finding problem in. Telecommunication notes 3g2g muhammad naeem ashraf. This is the common key performance parameters for lte drive test parameter. Aug 08, 2018 details of dt, how to drive test, how to pass drived test, basic of drive test. A practical network will have cells of no geometric shapes. Combined environmental testing for equipment used on automobiles overview and test approach jyuro izumi espec corp. Rsrp dbm rssi dbm 10log 12n where rssi received signal strength indicator n. Rsrp is the most basic of the ue physical layer measurements and is the linear average power in watts of the downlink.
Collection of the input parameters like requirement of capacity, coverage and. Tests for analysis performance is the most common, and usually made into clusters grouping of cells, ie, an area with some sites of. Oct 09, 20 telecom 2g,3g,4g,rf lte drive test,optimization,ipv6 study materials. Combined environmental testing for equipment used on.
Gsm parameters rxlevel rxquality frame erasure rate. 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. Drive test merupakan salah satu bagian pekerjaan dalam optimasi jaringan radio. Step by step drive test and post processing using tems and mapinfo abdul july 02, 2016 1 comments several functions of drive test. Download limit exceeded you have exceeded your daily download allowance. Oct 14, 2016 technically accomplished professional with 2. Jul 02, 2016 step by step drive test and post processing using tems and mapinfo.
Informasi yang dikumpulkan merupakan kondisi aktual radio frequency rf di suatu base transceiver station bts maupun dalam lingkup base station subsystem bss yang dilakukan dengan mobil sehingga pengukuran dilakukan bergerak. Drive test engineer,tems,rf engineer,lte,2g resume in dl. Drive test plan, procedure and output for gsm teletopix. These same parameters are exploited in drive test software to provide new value to the rf engineers rolling out the final network. Benchmarking drive test report for al buraimi governorate. Specified in 3gpp release 8, the air interface for lte combines ofdma based modulation and multiple access.
Different sites of recent technology 2g, 3g, hspa, wcdma, long term evolution lte, wimax are analysed by drive testing with tems investigation tools. It includes drive test parameters and values which are required for optimisation process. Details of dt, how to drive test, how to pass drived test, basic of drive test. One cant just continue to add more test cases for every new app gaming, whatsapp. Lte drive test parameters some important indicator lte drive test. With this course students as well as professionals will be able to learn about all network parameters, their kpi values and all neighbour related parameters. Drive testing of 2g, 3g, 4g, and 5g nr mobile networks. Nemo outdoor is a laptopbased drive test tool for 2g, 3g, 4g, and 5g nr mobile network testing which supports over 300 devices and scanning receivers, from various vendors, all the latest network technologies and latest smartphones.
Typical procedures for quality of service measurement equipment. Pdf 3g tems parameters investigation and drive testing. Index terms drive test, network quality, kpi, gsm, network planning. With radio resource management taking place in the enb, suitably instrumented phones can be used to monitor the performance of the physical layer including modulation schemes, access procedures, synchronization, and. Drive testing is a method of measuring and assessing the coverage, capacity and quality of service qos of a mobile radio network the technique consists of using a motor vehicle containing mobile radio network air interface measurement equipment that can detect and record a wide variety of the physical and virtual parameters of mobile cellular service in a given geographical area. It has a range o keywords lte, mcc, mnc, tac, cgi, pci, rsrp, sinr, rsrq, rssi, bssid, ssid, snr, dtdl, dtul, fms. Engineer should study the drive test plan ahead of time and highlight the intended drive test routes. Implementation of a drive test of the improvement for gsm system. Lastly, a drive test has been performed to improve the radio network quality. Drive test helps operation and maintenance for troubleshooting purposes. Oct 08, 2016 this video explains the concept of gsm drive testing with kpi parameters for 2g network performance optimization.
Quality issues identification and rx lev, rx qual, tch blocking, sdcch drop,hoissues, call drop problems, and call set up issues analysis. Lte drive test data can be analyzed during the drive test process as it is displayed on the screen. Tujuan drive test adalah mengumpulkan informasi jaringan secara real di lapangan. Have huawei and nsn project experience is preferred. Step by step drive test and post processing using tems and.
Drive test parameters high speed packet access radio. Pdf driv test is conducted for checking coverage criteria of a cell. This paper concentrates on the procedure of the drive test and the results obtained after completion of the test. Mar 14, 2017 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.
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