The diploma contains 125 sheets. Do not decorated and no drawings.
TABLE OF CONTENTS
INTRODUCTION
1 Sobienie OF MOBILE CELLULAR NETWORKS
1.1 Role of cellular strukttsry in more efficient use of frequency resources.
1.2 Principles of organization of mobile radio network.
1.2.1 Principles of macrocellular systems.
1.3 propagation conditions in the mobile communications.
1.4 The relevance of the design of mobile cellular communications in Bendery.
1.5 standard for cellular mobile radio systems.
2 GSM standard
2.1 Block diagram of the GSM standard and principle of operation.
2.2 Services standard GSM.
2.2.1 Structure of services and data transmission system GSM.
2.2.2 TDMA frame structure and the generation of signals in the standard GSM.
2.3 The process of converting the signals in the cellular radiotelephone.
2.3.1 speech production.
2.3.2 Channel coding.
2.3.3 Formation of the TDMA frame.
2.3.4 Encryption.
2.3.5 Gaussian Frequency Shift Keying.
2.4 Characteristic safety standard GSM.
2.5 The history and characteristics of standard GSM.
3 DESIGN OF MOBILE BENDER
3.1 Calculation of the power loss.
3.1.1 Model Okumura.
3.1.2 Model Hut.
3.1.3 Model COS-Burton.
3.2 Calculation of bandwidth.
3.3 The task for the design.
3.4 Calculation of the main parameters of the mobile radio network standard
GSM-900.
4 FEASIBILITY STUDY FOR DEVELOPMENT
4.1 Calculation of capital costs.
4.2 Calculation of the annual revenue from the services provided.
4.3 The cost of expenses.
4.4 Expected profit.
Payback period 4.5.
5 HEALTH AND ENVIRONMENT
5.1 Effect elektromagnitnyhpoley on the human body.
5.2 RS.
5.3 Calculation of the protective earth.
5.4Sotovy radiotelephone and health.
5.5 Extinguishing media-extinguishers.
CONCLUSIONS
REFERENCES
ADOPTED BY THE LEGEND
No feedback yet