Lte rf optimization training provides knowledge and skills needed for successful delivery of lte network design, lte planning and optimization activities. Therefore, besides adjusting the distribution and antenna parameters, combining the. Rf optimisation remains one of the key challenges in any network. Rf optimization,planning,drive test for telco tech. Cellular expert is a wireless network planning, optimization and. When more mobile devices become wcdma capable, the load of gsm layers can be offloaded, while starting lte 1800 mhz refarming from urban towards suburban areas. Wcdma radio optimization contents radio planning optimization. Parameter optimization is an important step after rf optimization. Optimization methods for umts radio network planning. So rf optimization and drive test is tool to find reason of call drop. A merged cmos lna and mixer for a wcdma receiver request pdf.
Radio network tuning and optimization for wcdma presentation 12 115 ericsson internal tems investigation supports more than devices from all. Wcdma hspa lte cdma tems investigation is an effective for masuring and tmonitering the digital network. In this research paper some practical cases and solutions are adopted to reduce the call and. Here i write about gsm rf optimization step by step and how to find kpi degradation and its solution. 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. Wpt2000 has maximum 2w output level and the power can be supplied internal battery or car charger. It generates wcdma pilot channel or cw signal as output signal and frequency channel number, psc and output level can be settable by user. Objective the purpose of this document is to consolidate and provide cdma2000 1x network optimization engineers a fundamental procedure with the standard and necessary information to optimize a cdma2000 1x system. The level of integration of the high base station enables efficient building high capacity sites since the complexity of rf combiners, additional antennas or power cables can be avoided. This workshop provides insights into the symptoms and possible causes of field performance issues in lte radio networks using ue logs. Detailed scan data of up to the top 20 cells of each wcdma and lte carrier was collected. Your individual production demands determine which tests you use. Wireless network planning solutions cellular expert. Radio network tuning and optimization for wcdma presentation 12 115 ericsson internal tems investigation supports more than devices from all major vendors across multiple technologies simple and effective data collection automatic detection of devices customizable workspaces that can be shared between users.
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. Pre launch optimization cell cluster drive test and analysis report. This handbook frequently refers to other reference materials, providing the necessary links to useful web sites, both internal and external to motorola, as the intent of this is. Wcdma 2100 mhz introduction and wcdma 900 mhz refarming are typically focused on different environments. Gsm radio frequency optimization gsm rf optimisation is the optimization of gsm radio frequencies. With the fundamentals addressed in regards to proper rf coverage, layer managements and parameter optimization could make the impact desired. Determine parameter values list the form for changing parameters original parameter values vs. Wcdma cellular network and mobile positioning techniques. Nevertheless there are some typical test items that can be identified. Learn how undertake network performance improvement kpis and optimization tasks and create acceptance plan, sponsor best practices and ensure data integrity of various morphologytopography. Engineering services group wcdma network planning and optimization 80w08531 revision b may, 2006. Rf measurements related to coverage and interference are discussed to analyze coverage holes and overlapping regions.
Intersystem handovers between gsm and wcdma 4, pp 255. This phase also includes the verification and optimization of the 3g neighbor lists. What is wideband code division multiple access wcdma. Qualcomm still makes chips for wcdma, cdma, and gsm, but it is pushing for older generations for. Wcdma innerloop power control in wcdma uplink bs performs frequent estimates of the received signaltointerference ratio sir and compares it to a target sir if the measured sir is higher than the target sir, bs will command ms to lower the power if sir is too low, it will command ms to increase its power openloop power control. Merging the lna and mixer lowers the number of transistors in the signal path and thereby also the nonlinearity. Lte rf optimization engineer jobs in united states glassdoor. To improve the the performance of the service provide. Rf lecture series modulation fundamentals introduction to.
Rf singlechip integration has been recently explored for compatible with major wcdma networks, such as direct conversion receiver5,6, triband transceiver3, and fullcmos transmitter and receiver7. Maybe some tradeoff considerations need to be considered to assure the maximal improvement in the whole view such as coverage. Quality issues identification and rx lev, rx qual, tch blocking, sdcch drop,hoissues, call drop problems, and call set up issues analysis. Cdma2000 1x rf optimization handbook draft march 10, 2017 motorola internal use 1207 objective the. Huawei wcdma rno parameters optimization authorstream presentation. Analyzing performance retrieved from tool reports and statistics for. The rf network optimization process can be categorized by the following steps. However, nokia and erickson have just signed an agreement with tmobile to upgrade to 3 rd generation wcdma from gsm. Aikio, the impact of the radio network planning and site configuration on the wcdma network capacity and quality of service, ieee vts.
A design of wcdma rf transceiver with its performance. Lte rf design network optimization guideline based on. The protocol of wcdma includes the physical layer, data link layer, and network layer as. Wpt2000 is a pilot channel transmitter for umts network design and optimization. Pdf rf planning and optimization in gsm and umts networks. We present heuristic mathematical methods for this realistic model, including computational results. After channelization, the real valued spread signals are weighted by gain factor s. Wcdma rf optimization free download as powerpoint presentation. Nokia siemens networks lte 1800 mhz introducing lte with. Rf optimization will solve network problems related to neighbor cell list, coverage and interference. Dec 18, 20 lte optimization mcps mcp mcpsinc mobilecomm 4g. Wcdma rf optimization mathematical optimization science.
Pdf wcdma rf optimization process gsmtoumts training. Foreword rf radio frequency optimization is the most important step to ensure the quality of the network. The network after being planned and optimised should. Pre optimization verification network planning initial optimization continuous optimization figure 1.
W cdma, cdma, rf, transceivers, if, power amplifiers, pa, transmitters, receivers, wcdma, wdcma application note 1211 wcdma superheterodyne reference design. Lte rf design network optimization guideline based on scanner drives v4 2. With less rf parts and more digital baseband processing, wcdma can take advantage of the rapid evolution of digital signal processing capability. When the level or quality of the server cells falls down below certain thresholds. A merged cmos lna and mixer for a wcdma receiver request. Ue bisa mendapatkan informasi sebuah meas configuration yang termasuk meas object, meas identities, reporting configurations, quantity configurations, dan meas gap configuration. The book explains the rf engineering aspects of umts, key elements of the 3gpp specifications, and practical operation of. Summary of network deployment steps from the different phases of network deployment, radio rf network planning and rf optimization are seen as critical as having long term impacts on both performance and capacity 6. Rf optimization once all the sites in a given area are integrated and verified, rf or cluster optimization can begin. Wacker, radio network planning process and methods for wcdma.
Wcdma radio optimization wcdma radio optimization contents. Rf optimization service optimization amr service optimization ps and cs commercial launch continuous optimization pre. For tx calibration the following items are commonly measured. Optimization aspects for cellular service performance and. Solution change the sector psc, or combine some sector previously, 3 cells psc184. Pdf wcdma radio network optimization guide table of. Table 61 3g network kpi of the drive test and cell quality test. Dec 29, 2014 rf optimization covers the optimization of the hardware of the antenna system and the list of neighboring cells. Wcdma radio network optimization guide huawei technologies co. 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. Maybe some tradeoff considerations need to be considered to assure the maximal improvement in the whole. A practical approach to improve gsm network quality by rf optimization. Identifying potential faults in the network and resolving them before they affect network performance. Wcdma spreading and modulation stanford university.
Operation is at 2140mhz for the receiver, and 1950mhz for the. Wcdma radio network planning issues, ieee vts proceedings of vehicular technology conference 1999 spring, houston, texas, may 1999, pp. Specific focus was made into the footprint of macro and odas nodes to determine the proper interaction and overlap. Users define all transmitter characteristic parameters using the common rf test conditions as specified in 3gpp ts 34. Rf lecture series modulation fundamentals introduction to wcdma.
Analyzing performance retrieved from tool reports and statistics for the worst performing bscs andor sites. P5 kari heiska and harri holma, performance of 2 mbits packet data with wcdma in. Objectives to optimize coverage while at the same time keeping interference and pilot pollution under control over the target area. Huawei confidential page 10 objectives of rf optimization lrf optimization is to solve the problems such as signal coverage, pilot pollution, and soft handover ratio in the drive test. Some radio transceiver architectures for wideband cellular systems have been widely discussed2. To simplify this process a step by step approach is proposed in figure 6 3. This course aims to address the network problems and provide solutions. Multiplexing of services with different quality requirements on a single connection, e. View wcdma radio optimization from eng 2352 at newcastle. The book explains the rf engineering aspects of umts, key elements of the 3gpp specifications, and practical operation of umts networks. A design of wcdma rf transceiver with its performance measuring.
International journal of engineering and advanced technology ijeatissn. Network optimization can initially be seen as a very involving task as a large number of variable are available for tuning impacting different aspect of the network performance. Rf optimization covers the optimization of the hardware of the antenna system and the list of neighboring cells. Huawei wcdma rno parameters optimization authorstream. The umts airinterface in rf engineering shows you how to design, build, and operate the 3g wireless networks that carry most of todays global voice and data communications.
Lte rf design network optimization guideline based on scanner. In addition to traditional rf data, l2l3 messages, and ip information collection, tems investigation supports testing of cs and ps services. Rectifying causes of faults affecting network performance. The role of optimisation is to provide automated or manual means to improve the. Lte rf optimization guide if this is your first visit, be sure to check out the faq by clicking the link above. Telcoma certified 3g optimization expert global certification. Feb 27, 2017 foreword rf radio frequency optimization is the most important step to ensure the quality of the network. Students analyze lte signaling messages through ue logs and map them to success and failure events. In practice, however, carriers have different kpi requirements, index definitions, and considerations.
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