ABSTRACT
Contents 6.1 Introduction ................................................................................. 232 6.2 Comparison between Basic Rel’99 UMTS and HSPA Planning Rules ... 233 6.3 Dimensioning Procedures for HSPA-based UMTS Networks .............. 234
6.3.1 Coverage-Limited Dimensioning .......................................... 234 6.3.2 Capacity-Limited Dimensioning (Code Limitation) ................ 236
6.4 Dimensioning Modeling of HSPA-based Networks ............................ 237 6.4.1 “Fair Resource”-based Dimensioning .................................... 237 6.4.2 “Fair Throughput”-based Dimensioning ............................... 242 6.4.3 “Enhanced Fair Throughput”-based Dimensioning ................. 244 6.4.4 Multiple Aggregated Services Dimensioning Process ............... 247 6.4.5 Shadowing Impact on Dimensioning .................................... 248
6.4.5.1 Adaptation in the Modulation and Coding (AMC) Model ...................................................... 248
6.4.5.2 Use of Tables and Abacuses for HSPA Dimensioning ...................................................... 250
6.5 HSPA RF Planning Reference Scenarios and Procedure ...................... 254 6.6 Dimensioning Performance Comparison between UMTS (Rel’99)
and HSPA Evolution ..................................................................... 255 6.7 Conclusion ................................................................................... 262 References .............................................................................................. 263
6.1 Introduction While in analog mobile networks and GSM (Global Service for Mobile communication), air interface planning consists in defining a frequency reuse pattern and a minimum spacing between frequencies allocated to the same cell, the RF problem is much simpler to solve in a UMTS network because the number of frequency carriers used by one operator is limited (two to three carriers). On the other hand, the frequency assignment difficulty in GSM is replaced by the planning of scrambling codes per cell for each carrier used.
