download explain points in drive test engineer
-overview about GSM and CDMA
-How to use Mapinfo?
- How to use Actix ?
for Engineer Ahmad abdelbaki
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شرح كباين موتورولا للمهندس احمد شوقي
بسم الله الرحمن الرحيم
انا اخوكم المهندس احمد هحاول فى البدايه اقولكم
مكونات كباين موتورلا
فى البدايه فى نوعين من الكباين
horizon 1
ودى قديمه جدا ونادر لما بتلاقيها فى سيتات فى
منها بس قليل اوى
والنوع التانى اللى هو horizon 2
وده زى اللى فى الصورة وبيتكون من اللى على
اليمين
كارت اسمه h2sc
وده عباره عن البروسيسور بتاع الكابينه والكارت
اللى جمبه ده
فى الصورة بس فى الغالب بيكون كارت
واحد بس فى الكابينه...
CDMA / UMTS RF Interview Questions 4
1. What are the RRC
states?
There are 4 RRC
States: Cell_DCH, Cell_FACH, URA_PCH and Cell_PCH.
URA = UTRAN
Registration Area.
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2. What are
transparent mode, acknowledged mode and unacknowledged mode?
· Transparent mode
corresponds to the lowest service of the RLC layer, no controls and no
detection of missing
data.
· Unacknowledged mode
offers the possibility of segment and concatenate of...
GSM RF INTERVIEW QUESTIONS 3
1. What are TDMA frames,
multiframes, superframes and hyperframes?
2. Why do we need FCCH, SCH
and BCCH?
FCCH: Identifies BCCH carrier by the carrier frequency and
synchronizes with the frequency.
Synchronization Channel (SCH): Transmits information about the TDMA frame structure in a
cell (e.g. frame number) and the BTS identity (Base Station Identity Code
(BSIC)).
BCCH: Broadcasts some general cell information...