【資料名稱】：諾基亞考題

【資料作者】：諾基亞

【資料日期】：2010.6.9

【資料語言】：中文

【資料格式】：DOC

【資料目錄和簡介】：

1、LAC PLANNING.
2\GSM QULITY GOOD NOT GPRS QULITY GOOD
3\HANDOVER TYPE AND CAUSE
4\THE DIFERENT OF RELASE ONE AND RELEASE TWO ABOUT SELRELECTION.THE ALGO..OFSELRESLECTION. AND EXPIRENCE OF CELL RESELECTION
5\C1AND C2JISUAN.
6\LIST TWO MEASURMENT FOR ACTIVE GPRS OPTIMIZATION
7\SW AND HW FOR DTOF GSM AND GPRS
sdcch ‘s function?
Dedicate logic channel?
5-10mfrom antenna 衰減50dbt or f?
簡單的功率預(yù)算？
BFG與TRP 的組合？
GPRS非cell 級(jí)別的參數(shù)？
Sitesurvey相關(guān)過程及其注意事項(xiàng)？


2) For phase 1 & 2 mobile, how does mobile make cell selection in GPRS network?
1,cell is selected autonomously by the mobile
2,MS uses C1 and c2 parameters for cell selection/reselection when MS is on standby mode
3,when ms is on ready mode, cell_reselect_hysteresis must be take into account

3) For GPRS network, what kind of measurement should you measure?
PCU,FRAME_RELAY,RLC_BLOCKS_PER_trx of BSC measurement and SGSN_user,SGSN_SESSION_MANAGEMENT,SGSN_MOBILITY_MANAGEMENTof SGSN measurement.

4)If C/I = 15 and given a CS rate, what is the highest throughout or rate?
C/I and CS will determine the highest throughput for a timeslot. there is a curve about it.
we can find for cs1,about 7kbps,cs2, about 10kbps,cs3, 8kbps,cs4,1kbps.
CS-1、CS-2、CS-3和CS-4，數(shù)據(jù)速率依次為9．05 Kbps，13．4 Kbps，15．6 Kbps，21．4 Kbps，
5) How many TS or minimum TS are there in 1 RLC? How long?

1 RLC block have 4Ts, 456bits？？？？？


(6). What is a Logical Channel?
邏輯信道是在物理信道的基礎(chǔ)上，根據(jù)BTS與MS之間傳送的消息類別的不同而定義的不同邏輯信道。分為業(yè)務(wù)信道和控制信道。
(7) 3. What are the five main phases in network planning?
覆蓋，容量，質(zhì)量，頻率，
（8）（What is the difference between Erlang B and Erlang C?