Network Capacity, Coverage Estimation and Frequency Planning of 3GPP LTE
Network Capacity, Coverage Estimation and Frequency Planning of 3GPP Long Term Evolution
Author:
Liang Zhang
The recent increase of mobile data usage and emergence of new applications such asOnline Gaming, mobile TV, Web 2.0, Streaming Contents have greatly motivated the3rd Generation Partnership Project (3GPP) to work on the Long Term Evolution(LTE). The LTE is the latest standard in the mobile network technology tree. Itinherits and develops the GSM/EDGE and UMTS/HSPA network technologies and isa step toward the 4th generation (4G) of radio technologies designed to optimize thecapacity and speed of 3G mobile communication networks. In this thesis, the LTEsystem capacity and coverage are investigated and a model is proposed on the base ofthe Release 8 of 3GPP LTE standards. After that, the frequency planning of LTE isalso studied. The results cover the interference limited coverage calculation, thetraffic capacity calculation and radio frequency assignment. The implementation is
achieved on the WRAP software platform for the LTE Radio Planning.
Language;English
Type of Doc.: Degree Thesis
No of pages:58
Table of Contents
1 Introduction ..................................................................................................................... 1
1.1 Aim ..................................................................................................................................1
1.2 WRAP International AB ...............................................................................................1
1.3 Thesis Layout ................................................................................................................2
2 Technical Overview of Long Term Evolution of 3GPP (LTE) .................................. 3
2.1 Introduction to LTE......................................................................................................3
2.2 OFDMA and SC-FDMA ...............................................................................................5
2.3 LTE Physical Layer Introduction ..............................................................................8
2.4 Synchronization ......................................................................................................... 12
2.5 System Information Broadcast ............................................................................... 12
2.6 Random Access Procedure ....................................................................................... 13
2.7 Adaptive Modulation and Coding (AMC) .............................................................. 14
2.8 MIMO technology .................................................................................................... 16
3 Capacity and Coverage Planning ................................................................................ 19
3.1 Algorithm Overview ................................................................................................. 19
3.2 Algorithm Fundamentals ......................................................................................... 19
3.3 Bandwidth Efficiency Calculation ............................................................................ 21
3.4 SNR Efficiency Calculation ...................................................................................... 31
3.5 Average Data Rate Calculation............................................................................... 34
3.6 Peak Data Rate Calculation ................................................................................... 34
3.7 Subscriber Number Estimation ............................................................................. 36
3.8 Coverage Analysis ................................................................................................... 38
4 Frequency Planning ................................................................................................... 40
4.1 Frequency Allocation in LTE ................................................................................. 40
4.2 Frequency Planning Method .................................................................................. 42
5 Results and Analysis .................................................................................................. 47
5.1 Capacity Calculation ................................................................................................ 47
5.2 Coverage Calculation ............................................................................................. 51
5.3 WRAP Capacity Evaluator .................................................................................... 52
6 Conclusions and Future Work .................................................................................. 55
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Network Capacity, Coverage Estimation and Frequency Planning of 3GPP LTE
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