Ericsson Feature of Fast Return to WCDMA

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6/9/2014 Ericsson Feature of fast return to WCDMA [Archive] - Wire Free Alliance

http://www.finetopix.com/archive/index.php/t-25970.html

raid75

Muhammad Imran Rafique

Darko

raid75

marco

Darko

s52d

raid75

Darko

P

Wire Free Alliance> Discussions for Wireless Network> Live Optimization> Ericsson Feature of fast return to WCDMA

View Full Version : Ericsson Feature of fast return to WCDMA

2012-01-12, 08:25

did any one try the feature of WCDMA for ericsson vendor? if yes please share the information(parameter needed, performance, Drive test result,..etc) since i try it in ournetwork but still is not working.

2012-01-15, 06:42

Hi Raid,

I have attached a technical description for this feature, it will help you understand how exactly we get help in reducing time; if our call ends in 2G and MS comes back on 3GNetwork.

To activate this feature you just need to activate AXEPAR & cell level as

BSC:AXEPAR FASTRET3G

CELL: RLRWI:CELL=XYZ;

but still i suggest to to change QSC=7 in line with SPRIO=YES and FDDMRR=1 to make this feature fully functional.

Note : Please dont forget reputationBR//Imran

2012-01-15, 11:17


This is very important!

QSC = 7 will assure measurements on UTRAN are ALWAYS performedSPRIO = YES to give time Multi-RAT mobiles have enough time for 3G measurementsFDDMRR = 1 in case the GSM cell has GSM neighbours in different GSM bands

BRDarko

2012-01-16, 03:12

Thank you Imran for your reply and we tried the recommndation you put but the feature still not working.is the feature only working with specfic mobiles?what next step it can be done?The HO from 2G to 3G is disabled.

2012-01-16, 07:20

cant download the file in attach???how to download ???

2012-01-17, 04:38

Hi raid,

Not ALL MSs support this feature. Check if your MS has support for:Cell selection indicator after release of all TC H and SDCCH in 44.018 C HANNEL RELEASE"This is mandatory!

Just to check... Have you defined UTRAN cells in Active list ?

Thank you Imran for your reply and we tried the recommndation you put but the feature still not working.is the feature only working with specfic mobiles?what next step it can be done?The HO from 2G to 3G is disabled.

2012-01-17, 05:18

Hi!

If using common LA with BSS/UTRAN, this feature might be redundant. Any experience with having both?I suspect marginal benefit with routing area updates.

Common LA was discussed in [Only registered and activated users can see links]and elsewhere in this forum.

BRs52d

2012-01-24, 07:49

Hi Darko,

yes i defined the UTRAN cell in active list but still the LU is performed on 2G and the only new thing that the mobile decoding the new message coming with channel release.

2012-01-25, 09:02

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2/5



raid75

roloramos

aygo


adewijaya


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Darko

besooo


Hi,

I would like to go back for a moment and ask how are you testing this.Your phone should be on UTRAN during idle mode and when call starts SBHO should push it to GSM (you should see handover event) and when call is released it camps onUTRAN again (if there is 3G cell measured during call).Can you see any Location Updates during reselection to UTRAN ? How long does it take ?

BRDarko

Hi Darko,

yes i defined the UTRAN cell in active list but still the LU is performed on 2G and the only new thing that the mobile decoding the new message coming with channel release.

2012-01-25, 06:48

Hi Darko,

i did the test as per following:1- start the call on 3G.2-push the call to 2G.3- release the call.

and the MS it back to UTRAN but after performing two LU one in 2G and the other on 3G where the purpose of the feature to reduce the time that the MS can't be reach aftercall release by avoiding the LU on 2G.

2012-01-26, 05:14

I think this is special when do you have different LAI for 2G and 3G....

2012-01-26, 05:01

hiinformation about the problems with this option

2012-01-28, 11:06

So Raid,

What are your final comments, i believe after defining in BA active list (if MS support). This feature should work normally.

BR//Imran

2012-01-28, 11:31

[Only registered and activated users can see links]

2012-01-29, 01:31

I myself is going to implement this feature tomorrow in our network. I will share report once it is ready.I have reference reports of other networks and they confirmed it works fine. Let me implement and then we will see what is the outcome.

BR//Imran

2012-01-29, 02:16

hi

while other information is not available, we will introduce in March on my network, the results will tell.

2012-01-29, 09:39

I will implement this feature in 2 weeks. I will share my experience when implementation is completed.BRD.

2012-03-01, 05:16

Hello Gents;i have implement this feature in my network and it is working normal with support MS. the feature can work with Idle and dedicated BA list, since the BSC push the MS toselect 3G frequency not CI ,Below some mobile support for the mentioned feature.

Sony Ericsson Xperia ArcHTC Sensation XLNokia 700Nokia N9Iphone4SIphone4.

thanks.

2012-03-01, 06:24

I have all technical details and already have submitted my plan to implement it. But our project team has stopped me b/cThey dont have suitable mobile to check feature functionality from feild. Any technical detail require? do let me know.

We are bound to show our customer feild results.

Our pre-trial results are showing 22sec for MS to go back to 3G.

Call Start 3GIRAT to 2G

Call End 2G


3/5




Darko

Darko

scorpion

Darko

Darko

kamaljailany

LAC/RAC UPDATE 2GWCDMA CELL SEARCHRESELECTION ON 3GLAC/RAC UPDATE IN 3GMS READY TO INITIATE/RECEIVE C ALL IN 3G

All this procedure is taking 22seconds and its killing our network. Desperately waiting for suitable TEMS mobile for testing.

BR//Imran

2012-03-01, 06:25

Kindly let us know how exactly you are able to save time (call End in 2G till MS available in 3G)

Please share benchmark report.

BR//Imran

2012-03-03, 10:50

This is valuable info. Thank you.Would you be kind enough to share drive test log file ?Do you see any change in number of LU after activation ?

Hello Gents;i have implement this feature in my network and it is working normal with support MS. the feature can work with Idle and dedicated BA list, since the BSC push the MS toselect 3G frequency not CI ,Below some mobile support for the mentioned feature.

Sony Ericsson Xperia ArcHTC Sensation XLNokia 700Nokia N9

Iphone4SIphone4.

thanks.

2012-03-03, 11:07

In my network is 19 sec. We implemented it, but tests with Sony Ericsson W995 didn't show results. I think this one should support Fast Return, but somehow it doesn't workNow I am also waiting for a suitable phone :)

I have all technical details and already have submitted my plan to implement it. But our project team has stopped me b/cThey dont have suitable mobile to check feature functionality from feild. Any technical detail require? do let me know.

We are bound to show our customer feild results.

Our pre-trial results are showing 22sec for MS to go back to 3G.

Call Start 3GIRAT to 2G

Call End 2GLAC/RAC UPDATE 2GWCDMA CELL SEARCHRESELECTION ON 3GLAC/RAC UPDATE IN 3GMS READY TO INITIATE/RECEIVE C ALL IN 3G

All this procedure is taking 22seconds and its killing our network. Desperately waiting for suitable TEMS mobile for testing.

BR//Imran

2012-03-05, 02:21

Is this feature supported by all phones ?

If not then what are all the impacts ?

2012-03-05, 10:29

No. It is not supported by all phones. Other users without support will normally do LU after Call Release.... those with support won't....Until now I didn't see any impact on number of LU per BSC level.

Is this feature supported by all phones ?

If not then what are all the impacts ?

2012-03-13, 04:46

I was able to get phone supporting this feature. It works well :)

2012-06-28, 10:46


Hi Darko

can you pls share which phone are you using?do you connect this phone to tems ?


4/5



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yazeedmk

gordonez

scorpion

Darko

Johnie


maqritos

maqritos

Darko

Darko

guruvai

tq

br//

2012-07-13, 05:01

I myself is going to implement this feature tomorrow in our network. I will share report once it is ready.I have reference reports of other networks and they confirmed it works fine. Let me implement and then we will see what is the outcome.

BR//Imran

Dear Imran,

Could you please share your reference reports?

2012-07-14, 01:16

Appropriate mobile wasnt available, now we have managed. Just need management approval, i will share once i'll have report.

BR//Imran

2012-09-20, 11:40

Appropriate mobile wasnt available, now we have managed. Just need management approval, i will share once i'll have report.

BR//Imran

could you tell us the acccepted Mobiles to use with TEMS? i have the sony ericsson c905 !!also should the mobile support 3Gpp rel:6 how could we check that?

BR Yazeed

2012-10-03, 01:44


Hi Darko, what phone do you use? With Sony Ericsson w995a does not work?

BR,

gordonez

2012-10-29, 11:01

How this Fast Return feature is different from other one...from implementation and as well as from the test result observations...

2012-10-30, 06:47

It gives really great improvement. I measured reduction in reselection time from 25 sec to ~2 sec. Also, slight reduction in LU count...

2013-10-01, 07:20

Is there any license dependencies for this feature ? I mean in MSC or in RNC something like this . Please update ASAP.

2013-10-02, 12:29

nothing required on 3G side, all requirements are on 2G side.

BR//Imran

2013-10-09, 10:21

I read ALEX and there said this feature depends of commercial agreement... What kind of agreement is talking about?

2013-10-09, 10:23

is this feature only for a IP network?

2013-10-13, 09:00

It's an optional feature.

I read ALEX and there said this feature depends of commercial agreement... What kind of agreement is talking about?

2013-10-13, 09:01

No, it's not for IP network only.

is this feature only for a IP network?

2013-11-06, 08:21

Hi Raid,

I have attached a technical description for this feature, it will help you understand how exactly we get help in reducing time; if our call ends in 2G and MS comes back on 3GNetwork.

To activate this feature you just need to activate AXEPAR & cell level as

BSC:AXEPAR FASTRET3G

CELL: RLRWI:CELL=XYZ;


5/5




Note : Please dont forget reputationBR//Imran

Hi, is there any similar feature for huawei?

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Ericsson Feature of Fast Return to WCDMA

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