Drive Test In Telecom Pdf Download
DOWNLOAD --->>> https://urlin.us/2t8bUH
Drive testing requires a mobile vehicle outfitted with drive testing measurement equipment. The equipment is usually highly specialized electronic devices that interface to OEM mobile handsets. This ensures measurements are realistic and comparable to actual user experiences.
RF drive test equipment typically collects data relating to the network itself, services running on the network such as voice or data services, radio frequency scanner information and GPS information to provide location logging.
For benchmarking, sophisticated multi-channel tools such as Focus Infocom's DMTS and XGMA, DingLi Communications' Pilot Fleet, Ascom's Symphony, Rohde & Schwarz-SwissQual's Diversity Benchmarker, Keysight Nemo Invex II, Aaronia RTSA Suite or RantCell application based QoE drive test benchmarking tool are used to measure several network technologies and service types simultaneously to very high accuracy, to provide directly comparable information regarding competitive strengths and weaknesses. Results from benchmarking activities, such as a comparative coverage analysis or comparative data network speed analysis, are frequently used in marketing campaigns. Drive testing to gather network bench-marking data is the only way mobile network operators can collect accurate competitive data on the true level of their own and their competitor's technical performance and quality levels.
Optimization and troubleshooting information is more typically used to aid in finding specific problems during the rollout phases of new networks or to observe specific problems reported by consumers during the operational phase of the network lifecycle. In this mode drive testing data is used to diagnose the root cause of specific, typically localized, network issues such as dropped calls or missing neighbour cell assignments.
Service quality monitoring typically involves making test calls across the network to a fixed test unit to assess the relative quality of various services using Mean opinion score (MOS). Quality monitoring focuses on the end user experience of the service, and allows mobile network operators to react to what effectively subjective quality degradations by investigating the technical cause of the problem in time-correlated data collected during the drive test. Service quality monitoring is typically carried out in an automated fashion, using devices that run largely without human intervention carried in vehicles that regularly ply typical drive testing routes such as garbage collection vehicles, taxis or buses.
SSV drive test or SCFT drive test is all about performing 5G/4G/3G drive test analysis on a particular site (Example newly installed cell tower) and this is usually performed by drive testing or by walk testing around the site.
Initially, in traditional drive testing, network testers used to drive along target routes to collect information regarding coverage data through various iterations and field tests with cellular RF drive test equipment. But, as telecom businesses are expanding, it is cumbersome to refine expanded networks in terms of size, capacity, and number of users. With a cluster drive test, operators can perform network tests by taking a group of cells and deploy it in a particular location and investigate the network accordingly.
Cluster drive test is executed when the network is in active mode (i.e. providing service to customers) and inspect the interference amid two cells and handover taking place or not. Network parameter details like Drive Route, Quality plots of RSRQ, SINR, PUSCH, Coverage plot, Download and Upload throughput is accumulated. Operators use this data to get output which is further utilized to optimize the mobile network and deliver efficient service to users.
Multiple site verification or a 4G LTE drive test must have measurements of radio parameters such as RSRP, RSRQ, SINR, PCI, EARFCN, and WCDMA drive test parameters like RSCP, RSSI, ECNO, PSC, UARFCN etc. at least at basic level to identify primary network issues.
In this test, comparison is done in terms of number of call drops, data throughput, and other key KPIs on 4G / 5G networks between various network operators and analysing who is providing the better user experience. Usually market level drive testing is performed by operators themselves/ independent bodies/telecom regulators. For example, telecom regulators from various countries constantly perform market level drive tests to identify under-performing operators whose user experience KPIs are not meeting regulatory requirements.
In recent times, 5G deployment across the globe has increased the demand for 5G drive test parameters such as 4x4 mimo, massive mimo, etc., and now 5G NR to a must-have feature on a RF drive test tool.
App-based RF measurement tools - App-based RF tools are compatible on Android smartphones and can be used to conduct 3G, 4G, 5G drive tests. Mass-scale deployment of such apps is possible due to low cost and compatibility of Android phones. There are solutions on the market that have big data capabilities for analysing huge geographical test data received from app-based RF tools.[2]
The test results obtained from the drive tests are presented to explain the network conditions in terms of Network Coverage (Signal level), Voice Quality, Data Quality, Accessibility, and Retainability, which are the prescribed performance benchmark parameters.
Whey applying for a position as a drive test engineer, you need a personalized CV to show hiring managers that you possess more than just basic technical skills. With the help of our drive test engineer CV example and writing tips, you can craft a CV that will help prove you are an accomplished professional. By following the guidelines provided when writing sections such as the Professional Summary and Interests, you can give the reader a glimpse of your personality and increase your chances of getting an interview.
A drive test engineer uses special equipment set up in a moving vehicle to collect data on the performance of cellular networks. As a professional drive test engineer, you can also be responsible for analyzing the data gathered and drawing conclusions about where improvements are necessary. The results of your research can identify problems such as interference and dropped calls in certain areas so that sectors requiring further development can be pinpointed. In some cases, you may be called upon to set up the equipment and provide technological assistance for any malfunctions of the data-collecting tools. Because candidates for this position will mostly be professionals with previous experience, it is important that your CV showcases any special skills and experience you may have. Using the drive test engineer CV example can help you understand what will set you apart from other applicants.
Datadriven framework: In this framework, the test data is separated and kept outside the Test Scripts, while Test Case logic resides in Test Scripts. Test data is read from the external files ( Excel Files) and are loaded into the variables inside the Test Script. Variables are used for both for input values and for verification values.
Keyworddriven framework: The keyword driven frameworks requires the development of data tables and keywords, independent of the test automation. In a keyword driven test, the functionality of the application under test is documented in a table as well as step by step instructions for each test.
Big data technologies process crowdsourced live traffic data from across the network, delivering a scalable, reliable, and replicable approach to performance analytics. Whether deployed through a network launch or during operations, this creates a world wherein every user becomes a drive test.
Traditional drive-test based initial tuning and acceptance is slow, polluting and not representative of the real user experience. Thanks to Virtual Drive Test being, XL Axiata increased subscriber visibility, accelerated acceptance, reduced its CO2 emissions, and decreased costs.
The typical configuration of drive test equipment for a measurement consists of a computer with specialized collection software (TEMS Investigation, Nemo Outdoor, Genex Probe, ROMES, among others), to which one or more test terminals are connected (typically smartphones compatible with collection software), scanner and GPS. The person in charge of data collection configures the measurement under certain parameters and performs a route on a previously defined path. Subsequently, the information collected must be analyzed by specialists who use the programs that can translate the collected data into information. 2b1af7f3a8