In this paper the main motive is to identify the causes of call setup failures in a gsm service test area and necessitate steps to increase the call success rate using rf optimization. Saravanan hodeee, amet university, chennai abstract quality of service and performance of gsm network can be determined from key performance indicators kpis such as call setup success rate. Rf optimization engineers are in charge for optimizing radio frequencies before and after a station is launched. This application note provides an overview of how drive test. The malist is able to point to 64 of the frequencies defined in the ca list. Rf optimization how to make kpi trend part 5 technical sandy.
Practical approach of planning and optimization for efficient usage of gsm network, international journal of communications ijc. Wcdma rf optimization process gsmtoumts training series v1. Sorry i dont tell you based on document because too much reference. However, the bcch frequency is also included in the ca list, so the practical maximum number of frequencies in the malist is 63. It ensures optimum network performance to meet the quality of service qos targets of the customer. Pre launch optimization cell cluster drive test and analysis report. Since call drop and call failure are the major problems in the gsm networks. Network optimization process is introduced and then network optimization using antenna parameter. Radio frequency optimization is an important process in verifying and monitoring the performance of any gsm radio network already deployed in an area. All gsm service provider uses kpi key performance indicator to monitor their quality of service qos performance.
Rf planning and optimization engineer resume in patna, br. Islam proceedings of the world congress on engineering and computer science 2009 vol i wcecs 2009, october 2022, 2009, san francisco, usa isbn. Rf optimization of gsm networks using antenna parameters. Radio network planning tools basics, practical examples. Experienced in vendor management and key issues discussions. Rf optimization covers the optimization of the hardware of the antenna system and the list of neighboring cells. Lte rf optimization areas such as rrc connection setup, bearer drops, intralte and. So if optimization major issue is call drop in gsm.
Drop call indicate how connection between handset and network become discontinue and causing bad experiences on user experiences because the call is release. Drop call rate optimization, how to identify and finding root cause for optimization solution on gsm and umts network drop call rate is main kpi that very important in rf optimization. Gsm is a circuitswitched system that divides each 200 khz channel into eight 25 khz timeslots. In fdd there will be pair of frequencies assigned in the downlink and uplink directions and hence transmissions from multiple subscribes can happen at the same time but on different frequencies as mentioned. Telecom 2g,3g,4g,rf lte drive test,optimization,ipv6 study. Students analyze lte signaling messages through ue logs and map them to success and failure events. Analyzing the signal flow and rf planning in gsm network. Analyzing performance retrieved from tool reports and statistics for the worst performing bscs andor sites. This workshop provides insights into the symptoms and possible causes of field performance issues in lte radio networks using ue logs. Feb 18, 2017 rf optimization kpi master sheet part 4 technical sandy technical sandy. Dec 02, 2015 handover in gsm is very important to keep continuous of call communication. Rf optimization for call setup and analysis of gsm network.
Feb 18, 2017 rf optimization gsm kpi threshold part 1 technical sandy technical sandy. Pdf rf planning and optimization in gsm and umts networks. Lteumtshspa gsm edge network planning and optimization of radio access network parameters. Then four optimization methods used for offtheshelf simulation based. Gsm 850, gsm 900, gsm 1800, gsm 1900, iden, cdma, cdma2000 1xrtt, tdmaamps, nmt 450, nmt 900, tacs, and etacs. If you continue browsing the site, you agree to the use of cookies on this website. Quality of service and performance of gsm network can be determined from key performance indicators kpis such as call setup success rate cssr, call drop rate cdr, handoff success rate hsr, traffic channel tch congestion rate, sdcch and tch. Pdf wcdma rf optimization process gsmtoumts training. The general steps and methods for wireless radio network planning are first addressed. Rf optimization kpi master sheet part 4 technical sandy. Dec 14, 2012 macro cell gsm network rf optimization workshop slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Lte rf optimization training provides knowledge and skills needed for successful delivery of lte network design, lte planning and optimization activities. This workshop uses ue logs and scanner data for analysis and.
Gsm network consist of different cells and each cell transmit signals to and receive signals from the mobile station, for proper working of base station many parameters are defined before functioning the base station such as the coverage area of a cell depends on different factors including the. Dec 29, 2014 rf optimization covers the optimization of the hardware of the antenna system and the list of neighboring cells. Provide an overview of the umts technology be familiar with the umts network architecture and releases introduce metrics for walktest introduce metrics for oss kpi monitoring establish a process of 3g rf optimization discuss different types of handover in umts familiarize with different. Successful example resumes for rf optimization engineers showcase duties such as consulting with clients, solving radio frequency issues, analyzing network performance indicators, and making sure project objectives are met. Quality issues identification and rx lev, rx qual, tch blocking, sdcch drop,hoissues, call drop problems, and call set up issues analysis.
In the us, gsm operates in the bands 850 mhz and 1900 mhz. This service is performed as a continuous rf engineering activity for preventive maintenance. Major parameters rxlevel, handover failuer, rxquality, ca. Rf planning and optimization in gsm and umts networks under the guidance of department of electronics and communication engineering manipal institute of technology a constituent institution of. Gsm interview question answer telecom 2g,3g,4g,rf lte. Rf optimization and drive test gsmwcdma home facebook. Main elements involved in radio network are mobile station and base transceiver station.
Rf optimization gsm kpi threshold part 1 technical sandy technical sandy. In the coordinated case the gsm interference to the outer resources of the lte downlink is the dominating criterion for the guard band, while the spectral density of the gsm carrier is much higher than of the lte carrier. Rf optimization is used to make proposals on how operators can optimize radio resources as well as provide the required of service quality to the subscribers. Radiofrequency optimization of global system for mobile gsm. Pdf gsm rf optimization guidelines free download pdf. Islam proceedings of the world congress on engineering and computer science 2009 vol i wcecs 2009, october 2022, 2009. Rf measurements related to coverage and interference are discussed to analyze coverage holes and overlapping regions. Here i write about gsm rf optimization step by step and how to find kpi degradation and its solution.
Rf optimization for quality improvement in gsm network dheepak. Pdf 3g rf optimisation basics amit sharma academia. Gsm network operators use key performance indicators kpis to evaluate their network performance and the quality of service qos with reference to end user perspective. Jan 18, 20 if the network utilises the rf hopping, the malists have to be generated for each cell by the network planner. Rf optimization gsm kpi threshold part 1 technical sandy.
The difference lies in the lte frame structure in both the fdd and tdd versions of the lte. Gsm radio frequency optimization gsm rf optimisation is the optimization of gsm radio frequencies. Optimization design methodology of miniaturized fiveband antenna for rfid, gsm, and wimax applications ayia a. Collection of the input parameters like requirement of capacity, coverage and. Drive test engineer,tems,rf engineer,lte,2g resume in dl. In this note i would like to share about gsm handover and how to optimize handover success ratehosr in gsm network based on my knowledge and experiences. Optimization design methodology of miniaturized fiveband. May 09, 2020 download gsm rf optimization guidelines. Pdf radio frequency optimization of mobile networks in. In the present work, optimization of gsm network is analyzed using drive test results.
Nokia siemens networks lte 1800 mhz introducing lte with. Lte rf optimization engineer jobs in united states glassdoor. Naji abstractthis paper presents a novel design methodology for the design and optimization of a miniaturized multiband microstrip patch antenna mpa for wireless communication systems. Network optimization process is introduced and then network optimization using antenna parameter setting is analyzed, finally the impact. Cdma2000 1x rf optimization handbook draft march 10, 2017 motorola internal use 1207 objective the. Rf optimization training course provides a thorough overview of the principles behind rf optimization applied to gsm, edge, cdmacdma2000, wcdmaumts, lte, 5g microwaves, satcom, vsat and wireless lans802. To improve the the performance of the service provide. Gsm owns a market share of more than 70 percent of the worlds digital cellular subscribers.
A practical network will have cells of no geometric shapes. Learn how undertake network performance improvement kpis and optimization tasks and create acceptance plan, sponsor best practices and ensure data integrity of various morphologytopography. Analyzing the signal flow and rf planning in gsm network pavithra. If the network utilises the rf hopping, the malists have to be generated for each cell by the network planner. Handover in gsm is very important to keep continuous of call communication. In this research paper some practical cases and solutions are adopted to reduce the call and increase the customer and profit of the service. Gsm radio frequency optimization gsm rf optimization is the optimization of gsm radio frequencies. This paper focuses on audit of radio access part of gsm network, suggestions to optimize the network and post optimization benchmarks. Rf planning and drive test a cell can be defined as the area covered by one sector. A gsm global system for mobile communication is an open, digital.
Rf optimization aster offers rf optimization services for existingnew gsm and cdma network operators. Report gsm rf optimization guidelines please fill this form, we will try to respond as soon as possible. The rf network optimization process can be categorized by the following steps. Gsm operates on the mobile communication bands 900 mhz and 1800 mhz in most parts of the world. Macro cell gsm network rf optimization workshop slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Provide an overview of the umts technology be familiar with the umts network architecture and releases introduce metrics for walktest introduce metrics for oss kpi monitoring establish a process of 3g rf optimization discuss different types of handover in umts familiarize with different parameters associated with each handover type. Oct 14, 2016 technically accomplished professional with 2. When rf optimization is tested for the first time, all the cells in the area should be traversed as much as possible to rectify hardware faults. Description download gsm rf optimization guidelines comments. Gsm transceiver design optimization covenant university. Optimization involves monitoring, verifying and improving the performance of the. Post optimization evaluations benchmark improvements ii. So this rf optimization technique helps to solve this problem.
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