PS Paging Improvment on E//

[Spider]

Hi All, Actually i'm facing low PS paging sucess rate near 78% on E// RNC. What are the different ways to investigate and improve this low value.

Thanks in advance.

[gprastomo]

1. Need to check the LAC RAC mapping
2. Need to check the PCH load and congestion
3. Need to clean up all types of congestion
4. Maybe coverage issue (signal strength, or quality)

[Muhammad Imran Rafique]

Hi gprastomo,
Let say we dont have congestion and area is Dense urban, What is the possibility and impact if we change PCH & PICH power.

Have anybody tried it? We are thinking to do trial here.

BR//
Imran

[ninjafine]

Hi! I would first try to investigate where the problem is located (radio, core, etc.). Do you have same LA for this RA? If so does CS paging for this LA have good success rate?
Do you have problem in Idle mode or in Ura_Pch as well?

[Spider]

Hi ninja, to answer you, we have one LAC and 4 RACs per RNC, CS paging is also near 80%. for the last question how can i check if the problem is in URA_PCH or Idle mode?

[gprastomo]

Hi,

i dont prefer to increase the PCH power, i think there is another issue.
1. Try to increase the RACH power by increasing the constant value
2. try to check the timer paging in mss to wait 2nd paging probably you need to increase it.

[Spider]

Hi guys, URA_PCH is not implemented in our network, i'll try to focus on the PCH load, but can the MP load affects the paging SR? from counters we don't have too many rejects due to MP load.

[freakturd06]

This guide might give you idea.

http://www.finetopix.com/showthread....ght=paging+lac

[senjamir]

Hi,

Can you check the number of paging attempt in core?You can then mapped it in RNC by checking the number of pages based on the following counters
a. pmCnInitPagingToIdleUe
b. pmCnInitPagingToIdleUeLa
c. pmCnInitPagingToIdleUeRa
Then once you have that information. Check the paging deletion based on the following categories
a. pmNoPageDiscardCmpLoadC - deletion to due high processing in MPLoad
b. pmNoPagingAttemptUtranRejected - rejected by UTRAN
You can improve the paging in the RNC by modifying the parameter pagingretransmission you can set it to 4 to increase the paging success.

Hope this helps,
Sen

[Muhammad Imran Rafique]

For PS, reduce your DRX cycle length to 6 as for CS. then definitely there will be improvement.