reasons for handover failure

[Tameem]

can any ony one tell me the reasons for HO failure.besides faulty hardware.
how can we find out if HO is failed due to congestion.can we analyze it through layer 3 messages

[PaleNxtTel]

it could be due to congestion or interferance. and yes you can analyze it through layer 3 messages.


can any ony one tell me the reasons for HO failure.besides faulty hardware.
how can we find out if HO is failed due to congestion.can we analyze it through layer 3 messages

[intros]

or it could be related to missing neighbour...you can find them if using Tems or nemo with a corect setted workspace...

can any ony one tell me the reasons for HO failure.besides faulty hardware.
how can we find out if HO is failed due to congestion.can we analyze it through layer 3 messages

[coursekec]

Invariably, this is caused due to a missing neighbour...Analysis through Mapinfo is also helpful along with the OMC data...Also look at your handover parameters, CRO settings, in your OMC...

[siankirene]

can any ony one tell me the reasons for HO failure.besides faulty hardware.
how can we find out if HO is failed due to congestion.can we analyze it through layer 3 messages
hi tameen,
you can analyze it through layer 3 messages (see request event).
- make sure that no miss relations in layer 1~2 and check site overshooting
- find out the status of target HO (congestion or not)
- check parameter and priority HO.
- check site position (rural/urban/suburban...etc),obstacle, and distance between source and target HO.


Btw, this for 2g or 3g?

Ty

[electron]

It can be due to bad frequency and BSIC planning (BSIC confusion)

[arban]

one of the reason you can check is neighbour setting. That's always happen to me.

[siankirene]

can any ony one tell me the reasons for HO failure.besides faulty hardware.
how can we find out if HO is failed due to congestion.can we analyze it through layer 3 messages
open this thread...

http://www.finetopix.com/showthread.php?t=4184&highlight=congestion&page=3

[mojiiiiii]

can any ony one tell me the reasons for HO failure.besides faulty hardware.
how can we find out if HO is failed due to congestion.can we analyze it through layer 3 messages
checl co-BSIC and CO-BCCH and layer 3 mesages

[stream19]

is not due to missing neighbor (we have HO in the cell already defined as neighbor)

[Tameem]

actually i am trying to analyze it through tems .i just wanna confirm can we tell the reason of HO failure by analyzing layer 2 and layer 3 messages.if yes then what measurement report we need to analyze

[nevy_14]

actually i am trying to analyze it through tems .i just wanna confirm can we tell the reason of HO failure by analyzing layer 2 and layer 3 messages.if yes then what measurement report we need to analyze

hi there,

assuming it's a GSM network...
you should find for neighbour relation in SI 5/SI 5ter
in case you want to analyze the caused of your HO, you can check the signaling before HO takes place and after HO takes place..(i forgot the SI whichcontain the quality of the channel, maybe someone can add this one)
CMIIW

BR,
nevy_14

[rishi]

it is due to intereference,high sd blocks and incorrect channel allocations to a nieghbouring cell.

it cant be because of missing nieghbours