Frequency reuse in gsm and cellular networks youtube. Gsm world coverage map gsm country list by frequency bands. Thanks in advance for your support, cheers, emmanuel. Pdf autonomous frequency planning for gsm networks salum. The general steps and methods for wireless radio network planning are first addressed. Frequency planning i frequency reuse only with a certain distance between the base stations typical hexagon model. Which must be applied to the bcch in frequency aggressive reuse technologies if the network capacity needs to be further expanded, the following measures can be taken. View map of 5g field testing and 5g network world coverage map view map of 4g lte world coverage. Average mobile internet traffic per user per month. The gsm ant indoor fixed length antenna is designed for indoor use. Frequency planning and neighbor list verification are two major tasks required to ensure an efficiently optimized network. Pdf huawei gsm radio network planning parameters reference. General approach for radio network planning the radio network planning process can be divided into different phases. Operating a gsm network not only requires the hardware and software, but also requires some understanding of radio frequency propagation and radio frequency planning.
Pdf autonomous frequency planning for gsm networks. Gsm frequency planning free download as powerpoint presentation. Having discussed frequency planning and the key frequency planning instructions in order to guarantee high capacity and high quality for the radio network, the meaning of the frequency planning criteria and especially the meaning of frequency grouping was emphasised, which offers a solution to avoid interference caused by the intermodulation. Gsm is a circuitswitched system that divides each 200 khz channel into eight 25 khz timeslots. Gsm frequency planning training 101 radio gsm free. We also explain how the frequency is divided into cluster of cells and why it is important to achieve a desired signaltointerference ratio. The uplink frequency range specified for gsm is 933 960 mhz basic 900 mhz band only. We develop a costminimizing planning model that simultaneously determines three important variables base station location, power level and frequency group assignments for the antennas at each selected base station. Global system for mobile gsm is a second generation cellular standard that was developed to solve the fragmentation problems of the first cellular systems and it specifies digital modulation techniques and network level architectures and services. Local legislation in force and international documents that define planning, technical parameters, and conditions of frequency resources allocation and use, to this band for mobile services are provided as. Gsm 900 gsm 1800 mhz are used in most parts of the world. Any effort to lay down manual frequency plans promulgates inefficiency in the cellular radio systems. The course covers all the aspects of network planning for the 4th generation wireless mobile telecommunications with emphasis on the practical considerations.
Huawei gsm radio network planning parameters reference v3 2. For the coveragelimited scenario lte link budget is compared to that of. Cellular network design site selection and frequency planning. Gsm is a digital system with an overtheair bit rate of 270 kbps. Clearly, there is a need for algorithmic optimization procedures to support the radio planner in this task. My paper is based on performance analysis of gsm network reliance gsm in aligarh city, up, india. Pdf gsm mobile system like other communication systems has the frequency band used in the systems depends on the type of the gsm. Global system for mobile communication is a digital mobile telephony system that is widely used in europe and other parts of the world. Scribd is the worlds largest social reading and publishing site. In the us, gsm operates in the bands 850 mhz and 1900 mhz.
Asset radio is teocos marketleading radio planning tool. Gsm system, the frequency band for the system is limited, so it must be taken account the number of frequencies using, in this paper, cell planning before. Gsm operates on the mobile communication bands 900 mhz and 1800 mhz in most parts of the world. Gsm frequency planning training 101 free download as powerpoint presentation. Frequency planning is possible by manually or automatic. Sc, college of engineering, electrical engineering dept. Competition motivates service providers to minimize these costs while maintaining service quality. May 19, 2016 we also explain how the frequency is divided into cluster of cells and why it is important to achieve a desired signaltointerference ratio. A software product for planning multitechnology wireless networks across gsm, umts, lte, 5g and more, all within a single project. Due to the mobility of the subscribers, the organisational structure must be subdivided into different processing elements. This analysis can be done in several ways, and one of them is by checking georeferenced plots, where possible problems of. Gsm frequency planning training 101 radio gsm free 30. Pdf cell planning in gsm mobile system is one of the most important operations must be done before the installation of the system, cell planning means. The frequency reuse plan is overlaid upon a map to indicate where different frequency channels.
The plan depends upon the type of frequency hopping system used. Bcch channels and tch channels are allocated according to frequency planning and requirement to accommodate 198 cells. For a specific user, a new frequency is used from one time slot to the next. This is done in gsm via gaussian minimum shift keying gmsk. Gsm traffic compression dynamic frequency and channel allocation dfca and orthogonal subchannel osc are key techniques to enhance spectral efficiency of gsm and edge. Gsm mobile system like other communication systems has the frequency band used in the systems depends on the type of the gsm system, cellular system means dividing the area region the system. Frequency planning and usage of 4g in china by jul.
Roger aboujaoude abstract this paper deals with the procedure of how to carry out the radio network planning for 2g and 3g systems. The cross reference between gsm, umts, 3gpp and etsi identities can be found under. Methods for umts radio network planning, zibreport 0341. Pcs bblock who uses a 7 cell frequency reuse pattern with 3 sectors per cell use a frequency chart available from fcc web site groups frequencies into 21 categories cells ag and sectors in each cell. Gsm digitizes and compresses data, then sends it down a channel with two other streams of user data, each in its own time slot. In case of sfh including bcch frequency in hopping sequence is not a practical option, as it results in loss of traffic channels on bcch carrier. Frequency hopping plan differs from the conventional fixed frequency plan. We also explores the tradeoff between interference. Geographical structures in a mobile communication network gsm is a worldwide standard for mobile communication with an extensive coverage. Gsm radio frequency planning gsm frequency bandarfcn. Radio network planning tools basics, practical examples. Osc enables dual half rate concept for voice calls, which allows carrying up to two.
We present results which were obtained in the context of a coop. Frequency planning steps for gsm frequency planning is possible by manually or automatic. The frequencies used in gsm radio frequency planning are divided among different frequency groups. Global frequency planning for imt spectrum requirement estimate of china rep.
Spectrum requirement mhz spectrum for year 2015 year 2020 finalchina 570690 14901810 finalglobal result 401960mhz. Nokia siemens networks lte 1800 mhz introducing lte with. Frequency reuse or frequency planning 11 consider a cellular system which has a total of s duplex channels. Integrated optimisation tools atoll includes a set of fully integrated afp automatic frequency planning and acp automatic cell planning tools, allowing operators to perform design and optimisation tasks from a single application using a single database and it. Hi all, can one give me general concepts on planning frequencies on 3g network. Dfca enables denser reuse of gsm carriers in a reduced spectrum due to lte refarming. The steps to be followed in manual frequency planning are. Then four optimization methods used for offtheshelf simulation based. Gsm owns a market share of more than 70 percent of the worlds digital cellular subscribers. If these are divided into groups of 12 frequencies we can have 10 groups. The course covers all the aspects of network planning for the 4th generation wireless mobile telecommunications with emphasis on. Aug 07, 20 page17 4 x 3 frequency reuse conclusion the 4 x 3 frequency reuse pattern is a basic technology applied in frequency planning. Automatic frequency planning and optimization algorithm.
Frequency planning for gsm cellular radio networks is the topic of this thesis. One important characteristic of gsm networks is frequency planning wherein given the limited frequency spectrum available, the reuse of frequencies in different cells is to be planned such that high capacity can be achieved keeping the interference under a specific level. These durable, lowprofile antennas are designed to allow flexible integration with gsm communications devices. Frequency planning in gsm mobile jalal jamal hamadameen m.
Due to the mobility of the subscribers, the organisational structure must be. Frequency planning strategies for frequency hopping gsm. Operator reliance gsm frequency band gsm 1800 mhz total sites 66 sites total cells 198 cells trx 594. Calculating the frequency reuse distance theoretically. Gsm frequency reuse in gsm networks a frequency reuse pattern with k 3, 7 or 12. Channel spacing indicates the spacing between adjacent carrier frequencies. Honeywell offers remote antennas designed to increase gsm signal transmission capability. Hunter mapbasic tool gsm frequency plan and neighbors. Tdma is a technique in which several different calls. Apr 21, 2017 operating a gsm network not only requires the hardware and software, but also requires some understanding of radio frequency propagation and radio frequency planning. In the 900band, which is 2x25mhz wide, we can have 124 carriers. Page17 4 x 3 frequency reuse conclusion the 4 x 3 frequency reuse pattern is a basic technology applied in frequency planning. Gsm frequency planning cellular network radio resource. Gsm groupe special mobile global system for mobile communications most popular standard for mobile phones in the world.
Automatic frequency planning and optimization algorithm for cellular networks muhammad umair, waleed bin shahid and masab javed abbasi abstractfrequency planning in ever growing cellular networks is an extremely arduous task. Airtoground communication systems and radionavigation operating in the vhf, uhf and microwave frequencies airtoground radio, adsb, vor, dme etc. The gsmant indoor fixed length antenna is designed for indoor use. Gsm uses reuse patterns of 412 and 39 in most of the gsm installations. Both coveragelimited and interferencelimited scenarios are considered. The frequency reuse plan is overlaid upon a map to indicate where different frequency channels are used. Deployment of cellular networks involves substantial capital investment. Gsm mobile system like other communication systems has the frequency band used in the. The advantages of fh are twofold frequency diversity interference diversity. It operates at either the 900 mhz or 1800 mhz frequency band. Because the radio network planning is a complicated subject, this paper gives a general overview of the process and the most important related issues.
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