Call drop cases

Ronney   钻石会员    发表于 2014-5-30 20:57:37   最新回复:2018-06-01 13:01:04

Call drop location analysis

Call drop location analysis: based on the location of the call drop event in the map window in the post processing tool, following information can be got:

a. The place of the drop call
b. At the edge of the 3G coverage or not
c. Related cells
d. Distance between related 3G cells and the drop
call point

Neighbor list analysis

Neighbor list analysis: to find out any cell not defined in the neighbor list, following information need to be got:
a.Best serving cell before the call dropped
b.Best serving cell after the call dropped

c. Existing neighbor list of the best serving 3G cell

Coverage analysis

Coverage analysis Analyze the pilot coverage to get information about:
i) CPICH transmission power
ii) Whether following coverage events take place or not:
? a. Coverage limited
? b. System interference
? c. Poor uplink coverage
? d. Poor downlink coverage
? e. Pilot pollution

Coverage analysis Analyze the service coverage to get information about:
a. Service related Maximum downlink transmission power
b. SIR before the call dropped
c. Max uplink transmission power allowed for UE
d. Actual uplink transmission power before the call

Handover analysis

Handover analysis to get information about:
 i) Signal strength change of the target call and the serving cell
? a. insufficient handover area
? b. too late to start CM
? c. too late to add target cell
? d. interaction problem among 3 type of handover
 ii) Following cause exist or not:

Signaling analysis

Signaling analysis:
a. Signaling of different interface including: Iu, Iub, Iur, Uu
b. Signaling of different layer including : NAS, RRC
c. In addition, analyze signaling in UE side in conjunction with signaling in network side.

aydemir   高级会员    发表于 2014-5-31 04:23:50

thank you..nice documents
hhaider   小试牛刀    发表于 2014-6-2 17:31:50

useful information, thanks for sharing :)
khizir   银牌会员    发表于 2014-5-30 22:53:51

Extremely good post.. Really appreciate it. 
saiyan255   银牌会员    发表于 2014-5-30 23:30:44

Really good doc please share us more

Md.Ashraful.Islam   金牌会员    发表于 2014-5-30 23:49:13

Very much Essential.. happy to get this
rony_ahmed   银牌会员    发表于 2014-5-30 23:54:01

I am  Looking for this nice documents.. thank you 
user_2837311   钻石会员    发表于 2018-6-1 13:01:04

useful document, thanks
Have a nice day
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