WCDMA 3G I-Rat (Inter-Rat) Handover Principle and Its Parameters

WCDMA 3G (Inter-Rat)" I-Rat " Handover Principle and Its Parameters

WCDMA 3G Inter-RAT Handover

(1.)     Inter-RAT Handover Overview

(2.)     Inter-RAT Handover Procedure

• IMP. LINK:- 4G Lte Modulation technique,Physical layer & Cell planning Tutorial

Inter-RAT Handover Application Scenario

WCDMA 3G ( Inter-Frequency ) Handover Principle and Parameters:-

WCDMA ( Inter-Frequency ) Handover Principle and Parameters:-

Inter-Frequency Handover:-

1.     Inter-Frequency Handover Overview

2.     Inter-Frequency Handover Procedure

3.     Signaling Procedures for Inter-Frequency Handover

Characters of Inter-Frequency Handover:-

·       The carrier frequency of the current cell and target cell are different

·       Based on the triggering causes of handover

Inter-frequency handover can be categorized into four types:-

ü  Coverage-based

ü  QoS-based

ü  Load-based

ü  Speed-based

WCDMA 3G ( Intra-Frequency ) Handover Principle and Parameters

WCDMA Handover Principle and Relevant Parameters

"Intra-Frequency Handover"

Why mobile system need handov

• LINK:-why handover is needed?

1.The mobility of UE

2.Load Balance

Handover is a basic function of a cellular mobile network. The purpose of handover is to ensure that a UE in CELL_DCH state is served continuously when it moves.

Handover types supported by WCDMA-UMTS

HCS:WCDMA hierarchical cell structure