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WCDMA P&O final test exam (Class: 12IUWOB320) 

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Name ________________________ Score _____________

Part1. True (T) or False (F) (40points)

1. Intra-frequency handover must be soft handover. ( F  ) 2. Inter-frequency handover must be hard handover. ( T  )

3. WCDMA is a self-interference system. ( T  )

4. The frequency of close-loop (Inner) power control is 1500Hz. ( T  )

5. In WCDMA system, 12.2k CS and 64k CS services have the same coverage. ( F )

6. In WCDMA system, uplink is interference restricted, downlink is power restricted. ( T  )

7. Inner loop power control is between NodeB and RNC. ( F )

8. In WCDMA system, neighbor cells can have the frequency . ( T  )

9. In WCDMA, Scrambling, and Channelization are planned codes ( F )

10. BCH is a Broadcasting physical channel ( F )

Part2. Multiple Choice (40points)

1. The maximum data rate in R99 is ( C  ) in theory.

A. 153.6kbps B.384kbps C. 2M D.14.4M

2. In WCDMA, there are ( B  ) primary scrambling code in downlink.

A. 256 B. 512 C. 218-1 D. 224-1

3. In WCDMA, ( B ) is the physical channel containing system broadcasting

information(BCCH).

A. P-CPICH B. P-CCPCH

C. S-CCPCH D. PRACH

4. ( B ) is the physical channel that carries PCH and FACH transport channels

A. P-CCPCH B.S-CCPCH D. SCH F. DPDCH

5. Email belongs to ( D  ) service.

A. conversational B. streaming

C. interactive D. background

6. During Link Budget, ( B ) should be taken as gain.

A. Power Control margin B.SHO D. HHO F. Load control

7. The purpose of power control includes ( A/C/D  )A．overcome near-far effect

B．compensate signal fading

C．increase WCDMA system capacity

D．extend battery life

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WCDMA P&O final test exam (Class: 12IUWOB320) 

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8. ( B  ) Is used to start Inter RAT measurement.

A. 2A B. 2E

C. 2D D. 2C

9. 2F Event is used to ( B ) compressed mode

A. Enable B.Disable

10. The Processing Gain for a PS64kbps service is: D A. 25db B.10db C.16db D.18db

Part. 3 (20 points)

1)  Quel paramètre permet de choisir entre event 2A/2B/2C InterHoTactic 

2)  Quelle est la différence entre les Event 2A/2B/2C

3)  Quelle est la fonction du paramètre time to trigger

4)  Expliquer le critère de selection/reselection d’une cellule 

2)Event 2A, the quality of the neighbour cell must be better than the quality of the serving

cell

Event 2B: quality of neighbor cell must be better than the threshold AND Quality of serving

cell must worst than the threshold

Event 2C: depend only on the quality of the neighbor cell

3) Time to trigger, is the minimum time that the condition must be confirmed

Cell selection: depends on the quality and signal level, both conditions must be

confirmed to get the selection

Cell reselection: depends on the quality measured by the serving cell and the neighbor

ones to find the best new cell to reselect