Ericsson - WCDMA
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Bassem AbouamerEricsson - WCDMA
Uploaded by
Bassem AbouamerTest
“Ericsson WCDMA Systems
Overview”
Ericsson WCDMA Systems Overview
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Ericsson WCDMA Systems Overview
Table of Contents
Topic Page
TEST ......................................................................................................1
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Ericsson WCDMA Systems Overview
TEST
1. Which Technology introduces packet switching into the GSM network?
2. Which new nodes have to be introduced?
3. Which other HW needs to be introduced and why?
4. Which new technology is introduced in the GSM radio network for better
utilization of the air link?
5. Which modulation scheme does this technology use?
6. What is IMT-2000, 3GPP and 3GPP2?
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Ericsson WCDMA Systems Overview
7. Name the layers of the layered core network!
8. What is the purpose of each of those layers?
9. What is ATM – what does the abbreviation stand for?
10. What is an Adaptation Layer in ATM?
11. On which layer(s) of the OSI model does ATM operate?
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12. On which layer of the OSI model happens the switching in ATM? On wich one
in TCP/IP?
13. What is the Cello Packet Platform?
14. What cell size does an ATM cell have and what advantages offer fixed length
packets?
15. What is a Media Gateway (MGW)?
16. Which network elements belong to the Radio Access Network (RAN), and
which of them controls the Node B in a WCDMA/UMTS network?
17. What is the difference of CDMA compared to FDMA and TDMA?
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18. What is the spreading factor (SF) and how is it defined?
19. What does OVSF-code mean and what is it used for?
20. How many channels could be distinguished in WCDMA technology
theoretically?
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