GSM General Testing for Internship

I.   Please complete the text below with the correct terms for the logical channels.  (7 points)

1.       The ……………..belongs to the group of the Broadcast Channels, and only exists in the downlink. It supplies the mobile station with the system configuration parameters of the selection cell.

2.       The ……………… is a Broadcast Channel in the downlink. It is sent out at short regular intervals. It allows the mobile station to correct and adapt its frequency.

3.       The ………… is a Common Control Channel in the downlink. It is broadcast by all base stations in a Location Area to notify a mobile subscriber of an incoming call.

4.       The …………… is a Common Control Channel in the uplink. It is used by the mobile station to initiate transactions, and to communicate its identity and its request, for example its request for registration

A.      FCCH         B. RACH           C.BCCH            D.CCCH           E.PCH

II.                  Please relate the types of the information of the relevant Dedicated Control Channel.(3 points)

SDCCH	SACCH	FACCH

A.      Sending of measurement report   B. Power Control         C. Call Release           

D. Authentication        E. Handover     F. Call Set-up.

III.        Please give a brief of your understanding about the Logical Channel. (10 points)

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IV.                What is criteria for Cell selection and Cell Reselection, C1>0? (10 points)

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V.                  Please summarize about SDCCH Dynamic Adjustment, what is its parameters relevant meaning? (10 points)

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VI.                Please summarize about Half-Rate Service, what are its parameters relevant and meaning? (10 points)

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V.     What is the Board Name to handle for GPRS Service? How many DSP it can support? And 1 DSP can support how many PDTCH? (10 Points)

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VI.                What is the interface name of the NE below? (2 points)

               

VII.              Where The TRC is normally located? Why do we need TRC? ( 3 points)

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VIII.            In GSM, What is the CGI format? (1 points)

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IX.                Which frequency range has been specified for uplink & the downlink of GSM900? (2 points)

Uplink:890----915MHz. Downlink: 935----960MHz

Uplink:900----920MHz. Downlink: 940----960MHz

X.                  Which frequency range has been specified for uplink & the downlink of GSM1800? (2 points)

Uplink:1710----1800MHz. Downlink: 1810----1900MHz

Uplink:1710----1785MHz. Downlink: 1805----1880MHz

XI.                What is The Rules for collecting Data during drive test, brief only the main key word?

(10 points)

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XII.              In GSM, What is the mean of Idle Mode and Dedicated Mode? (3 points)

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XIII.            In GSM, If average traffic per subscriber is 25 miliErlang, and the BSC Capacity is 15,000 Erlang, So how may subscriber that BSC handle for the traffic? (2 points)

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XIV.            What is the forma of the counter name below: (10 points)

1.      SDCCH Call Drop Rate: ………………………………………………………………………………………………………

2.      TCH Call Drop Rate (Inc HO): ……….…………………………………………………………………………………….

…………………………………….......................………………………………………………………………………………

3.      Call Setup Successful Rate (HO): ………………………….……………………………………………………………

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4.      InterCell HO Successful Rate: ………………………….…………………………………………………………………

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5.      TCH Congestion Rate: ………………………….…………………………………………………………………………….

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XV.              What is the Equipment Components of Microwave in one Hop (1+1)? (3 points)

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XVI.            What is the meaning of the alarm name below: (2 points)

1.      SFP Module Fault Alarm: …………………………………………………………………………………………………...

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2.      LAPD_OML Fault Alarm: …………………………………………………………………………………………………...

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Name: ……………………..… Total Score: ………………………………