- This topic has 38 replies, 1 voice, and was last updated 2 years, 3 months ago by Abdullah.
13th April 2010 at 10:31 #61286Karan SinghGuest
@Basharat : T3113 is nothing but first paging response timer that you have set as 7 , set it to 8, also check for Call set up time.
Anyway, you might be checking from BSS, both this & implicit detach timer are MSC timers , ask MSC guy to help you out.
Try these settings after consulting
TX Int. : 12, MFRMS :5 (If traffic is high, 3 if its low), AGBLK : 1. Cant comment further, share reports if possible, I need to have an idea of traffic & LAC dimensioning.13th April 2010 at 10:42 #61287Karan SinghGuest
@Rex : I personally dimension LAC in bad PSR situation, though if you are thinking of a particular cell, check for MTC Count, LAU Attempts which should not be very high, if they are unusually high in case of border cell, increase CRH. PS: LAU will effect Paging.
Enabling Dynamic AG preemption is OK. Concentrating on PCH is better option. How much is the traffic in the LAC/MSC you are talking about particularly MTC Traffic & what is the equipped erlangs? If possible float BHCA & CCCH Config with current paging type being used, it must be TMSI though..13th April 2010 at 10:50 #61288AliAsgherGuest
Can you please elaborate why are you recommending a higher value of MFRMS for higher LAC utilization?
Regards,13th April 2010 at 11:51 #61289Karan SinghGuest
MFRMS is a value that should be set carefully, it signifies the duration after which the paging cycle repeates itself.
PS : MS listens to paging via its sub paging channel that would repeat itself after “MFRMS” no. of cycles. If I set it too low like 1 or 2 in heavy traffic conditions i.e. where heavy paging takes place, it will lead to frequent sub pg group repetitions and simeltaneously heavy page queuing. Similarly setting it too high for low traffic, shall lead to delay in paging response thereby hitting PSR. Therefore an optimum value needs to be set.13th April 2010 at 12:17 #61290AliAsgherGuest
Thanks for your input. Actually in cases of heavy traffic, I assume you are also talking about high PS traffic. Which will mean that eventually PS Immediate assignments will be very high on cell discarding pages. So usually in high traffic cases (where PS traffic is also significant) a low MFRMS will reduce your paging discards.
Regards,19th April 2010 at 06:52 #61291Karan SinghGuest
@ Ali : No Ali, as I have stated, in high paging zones , keep MFRMS relatively higher like 5 or 6. Please note if you set the value too low like 2 , it could lead to queuing and hence paging discards.
Note : High traffic, high MFRMS!*
* : Also subjective to other parameters like TX Integer, AGBLK, T3113, IMSI Detach etc.31st May 2010 at 19:00 #61292Kennedy whiteGuest
Please kindly assist us on how to improve MSC paging. In our network, we have MSC in pool. Any better suggestion will be appreciated.24th June 2010 at 08:45 #61293AshwiniGuest
need to improve PSR in ZTE network, any suggestion? traffic load is normal.
AGBLK : 2
T3113 : 10s
T3212 : 2 hrs
Implicit detach timer : 6 hrs
TX Int. : 1427th June 2010 at 18:56 #61294RexGuest
Try MFRMS=5 and T3212=4 (or 6) hours.
Rex.4th July 2010 at 08:54 #61295sureshGuest
how tx integer will help to improve paging sucess?6th July 2010 at 13:29 #61296BijoyGuest
Please read this post “SDCCH blocking is high”.
Tx actually reduces RACH collisions which leads to better RACH Success Rate & hence PSR.
Bijoy2nd September 2010 at 05:44 #61297nynoiGuest
In case of we have Gs interface in our network, what are the performance indicatior should be monitored.7th September 2010 at 16:06 #61298SureshGuest
Let us know the parameter list whcih directly affecting the PSR in ericsson BSC & MSC core nodes.
Please help14th February 2011 at 08:40 #61299AkiiGuest
In my Huawei Network sometimes it happens that When Utilization is less than 100% and No Alarm or open in any even then too Conjection is cominng, Plss tell me the reason.19th May 2011 at 18:55 #61300Jayanta ChandaGuest
What are the diffrent ways we can try to improve PSR
- The forum ‘Telecom Design’ is closed to new topics and replies.