LTE_PS_IN_PREP_FAIL_RNL

[eritelecom]

Hi mates

We have a high number of incoming LTE PS HO failure on one RNC with failure cause = LTE_PS_IN_PREP_FAIL_RNL
description says its radio cause but nothing more. does anyone experienced this before ?

Thx a lot

[Shakeel_15]

Hello,

Could you give some more details of the problem? Statistics etc?

BR

[wolverine]

Might be worth checking the following:

1. Feature is enabled on the RNC
2. 3G target cell(s) are not congested
3. 3G target cell(s) actually exist on that RNC (sometimes re-parenting of 3G cells will lead to cells pointing to the wrong RNC on the 4G databuild)

[mounir34]

could you please check the Handover_Preparation_Failure causes using S1 Trace




Hi mates

We have a high number of incoming LTE PS HO failure on one RNC with failure cause = LTE_PS_IN_PREP_FAIL_RNL
description says its radio cause but nothing more. does anyone experienced this before ?

Thx a lot

[samuraial]

Dear,

RNL can be low parameters configured also in the target RNC cell so do a parameter compare with CME.

Question: are you using huawei or other vendor?

B/R

[miles12]

Dear
I faced same problem for 3G. basically, Radio cause fail occurred due to improper neighbor planning and long-distance neighbor. Y

ou can follow below instruction:

> LTE to 3G Ho fail attempt cell wise .
> 3G to LTE Ho fail attempt cell wise .

Then delete unnecessary and long distance neighbor and add necessary neighbor. Hopefully problem will be solved.


if you find this post helpful, please don't forget to add reputation :)

BR//
Miles



Hi mates

We have a high number of incoming LTE PS HO failure on one RNC with failure cause = LTE_PS_IN_PREP_FAIL_RNL
description says its radio cause but nothing more. does anyone experienced this before ?

Thx a lot

[eritelecom]

HI GUYS

thx for feedback but the pb is not related to cell distance (it is preparation phase).
it can be congested or parameter config/license ..
i need a feedback from someone who experienced it
vendor = Nokia

[eritelecom]

guys, any help here ?