4.75 out of 5
4.75
32 reviews on Udemy

UMTS (3G)

For Arabic Speakers Only كورس أساسيات الجيل الثالث للموبايل لمهندسين وطلبة هندسة الاتصالات
Why UMTS?
CDMA Concept, Spread Spectrum
Cellular Concept in CDMA
Codes in CDMA, usage, OVSF tree
Soft Handover (SHO)
Pilot Pollution
QPSK Modulation, Rake Rx
Power Control overview
UMTS Design Aspects
UMTS Network Architecture
UE States & Connections
UMTS Air Interface Channels
UMTS frame structure
UMTS Air Interface Protocol Stack
HSPA family overview (HSDPA, HSUPA, HSPA+)

Universal Mobile Telecommunications System (UMTS), is the third generation (3G) successor to the second generation GSM based cellular technologies which also include GPRS, and EDGE. Although UMTS uses a totally different air interface, the core network elements have been migrating towards the UMTS requirements with the introduction of GPRS and EDGE. In this way the transition from GSM to the 3G UMTS architecture did not require such a large instantaneous investment.

UMTS uses Wideband CDMA (WCDMA or W-CDMA) to carry the radio transmissions, and often the system is referred to by the name WCDMA. It is also gaining a third name. Some are calling it 3GSM because it is a 3G migration for GSM.

CDMA intro

1
Why 3G ?
2
CDMA Theory [part 1]
3
CDMA Theory [part 2]
4
Power Control [part 1]
5
Power Control [part 2]

UMTS Specs.

1
UMTS Codes
2
OVSF Code Tree
3
UMTS Network Architecture
4
UMTS Design Aspects
5
Soft Handover
6
UE States & Connections

UMTS Air Interface

1
Air Interface Channels [part 1]
2
Air Interface Channels [part 2]
3
UMTS Frame Structure
4
UMTS Air Interface Protocol Stack [part 1]
5
UMTS Air Interface Protocol Stack [part 2]
6
HS-family introduction
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