- This topic has 8 replies, 1 voice, and was last updated 14 years, 5 months ago by james.
21st April 2008 at 14:45 #51986jamesGuest
can any body help me if i want to apply AMR feature but there is limitation for me let say 500 TRX only supporting AMR and other network TRX is normal type , my question is that if ihave site with 4/4/4 then if iwant to use 2 of each sector TRX two AMR TRX it is possile to be used or not if yes what about handover from NON AMR to AMR TRX
please help21st April 2008 at 16:20 #51987pixGuest
handover AMR from and to non-AMR is possible, there is no constraint on this.
about the limitation, i just know that in the OMC-R, you don’t define a TRX as “AMR” or “NON AMR”. This is a cell parameter.
I would say that a 4/4/4 BTS with the 3 cells defined as AMR would be counted as 12 AMR TRX in the license. I can check that out…22nd April 2008 at 12:11 #51988jamesGuest
thanks for the response but this one is possible in Ericsson and Huawei ?
how it will be the handover procedure is there any threshold or hystresis to control HO from and to AMR and non AMR.22nd April 2008 at 12:38 #51989pixGuest
ha no, i don’t know for ericsson and huawei…
the intercell HO AMR->non AMR is normally not controlled by a parameter… you can however play around thanks to the TFO feature (tandem free operation).23rd April 2008 at 05:24 #51990jamesGuest
for handover I mean intracell HO if it possible ? and how TFO contribute with this feature23rd April 2008 at 17:29 #51991pixGuest
intracell HO ? well, there is no algorithm for this one. an AMR MS in an AMR capable cell will always establish an AMR call. There’s no reason an AMR call has to become a FR call within the same cell !24th April 2008 at 05:17 #51992jamesGuest
in the network there is threshold for AMR Traffic ( AMR/FR or AMR/HR) when the traffic is passed the thresh the MS has to go to non AMR TRX and how it perform intracell HO24th April 2008 at 06:22 #51993pixGuest
that’s surprising.. i don’t undertand what is the reason that lies behind this HO. A MS in AMR FR will use the same amount of resources than if it were in Legacy FR.
are you sure that these thresholds are not to go from AMR FR -> AMR HR, or AMR HR -> AMR FR ?
if you’re sure, then i don’t have an answer for you, you got to check it out with your vendor(s).24th April 2008 at 09:48 #51994jamesGuest
i think you did not get my question my previous qestion is example what i mean for exampe it is possible to have such kind of intracell HO from AMR TRX to NON AMR TRX let say if one cell has fout TRX if I put TWO TRX as AMR and other two is normal the handover will take place if percentage of mobile which use AMR passes the thrsh and has ability to use normal Speech coding like normal FR/HR