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3G Question Set

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Sr. No. Questions 1 Explain Ec/Io and RSCP; on what channel are they measured on? 2 What does channelization codes do and function? 3 What does the scrambling code do and function? 4 Explain the concept of Cell Breathing. How is the accounted for in the link Budget? 5 Explain the different Handover types in UMTS 6 What is an active set, monitor set and detected set? 7 What is the major difference in link budgets between UMTS and GSM/TDMA? 8 In the Link Budget, what is a Shadow
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  Sr. No. Questions 1Explain Ec/Io and RSCP; on what channel are they measured on?2What does channelization codes do and function?3What does the scrambling code do and function?4Explain the concept of Cell Breathing. How is the accounted for in the link Budget?5Explain the different Handover types in UMTS6What is an active set, monitor set and detected set?7What is the major difference in link budgets between UMTS and GSM/TDMA?  8In the Link Budget, what is a Shadow Fade Margin for and what factors does it depend on?9What is the typical maximum active set size and what needs to be consider when setting this?10What is typically the requirements (criteria) for a cell to be added/removed/replaced to/from/in the active set?11What would you define as a pilot polluter?12How would you find such cells from a planning tool and from a drive test tool?13What would the call flow be for a Mobile Originated Call (major RRC messages)?14What are the general triggers for an iRAT handover?15What is compressed mode, what is it's function, and what impact does it have on the network?  16Name the 4 RRC Connected Modes (states) and describe the characteristics of each.17If a UE is on a data call (CELL-DCH state) and there is in no activity for awhile what would you expect to see occur?18In Release '99, how does the network manage the throughput on the Radio Interface for a user/connection?19What is the typical/most common bitrate that a voice call uses?20Depending on the RF conditions, what can the network do to manage call quality?21In HSDPA, how does the network manage the throughput on the Radio Interface for a user/ connection?22Explain Inner and Outer loop power control and who controls them.23In what cases is Open Loop Power Control used?  24Explain the concept of a Monte Carlo Simulation for UMTS Design25In pre-launch optimization, how are missing neighbors usually detected?26What is the CQI in HSDPA? 27What is the HARQ?28What is MIMO Antenna System?29What are the different RABs in R99?30What is TTI in WCDMA How it impact?31How many PSC in WCDMA?32What is the Processing Gain?33What is the Power Control?34what should be the idle CPICH power ?35What is rake receiver?36What kind of services are available with WCDMA?37Which modulation schemes are used in WCDMA?38What is interleaving?39What is threshold for adding and deleting a cell from Active Set?
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