- This topic has 10 replies, 1 voice, and was last updated 12 years, 8 months ago by RH.
11th March 2008 at 08:30 #51485jajaGuest
can any body help me that I checked in TEMS ( neighbor and serving cell) the same cell appear in different RX level let say
cell A RX level -56dBm amd in the same next one cell A RX level -65 dBm11th March 2008 at 08:36 #51486BilalGuest
Might be two cells with same BCCH and BSIC serving in the area. If this is the case, you must be having very bad HSR and Random Access Success Rate there.12th March 2008 at 07:30 #51487jajaGuest
no I don’t have the Co BCCH/BSIC .12th March 2008 at 07:59 #51488BilalGuest
One of them is serving and other the neighbor right? Please check if you have included the own BCCH of serving cell in the Active BA list. I am working on Ericsson and they have introduced this feature “Own BCCH” in R12 to improve the multiband cell performance.12th March 2008 at 14:40 #51489ManiGuest
Well as per my understanding in some operators a parameter like Pbgt_Mode is provided which is especially useful for dual band cells. It allows an MS on the DCS inner zone of the cell to compensate for the difference in the prorogation losses of the two frequencies GSM-BCCH and DCS Inner zone.13th March 2008 at 05:20 #51490jajaGuest
thanks for your reply
but for more information I have onle singleband(900) and also the BCCH is not included in the BA list and this make me surprise for appearing same BCCH for the same cell with different RX level13th March 2008 at 05:59 #51491ManiGuest
Since its a parameter like pbgt_mode=0 add the serving cell to the BA list. now the MS only reports 5 neighhbours as the 6th is the serving cell. in your case this parameter can be wrongly set as it would still work in the same manner even if no inner zone.13th March 2008 at 06:16 #51492BilalGuest
Which vendor you are working on by the way?13th March 2008 at 07:46 #51493RadiatedGuest
This is a problem in TEMS that even the TEMS people cant answer to 🙂
(its not the case of measurement on own BCCH because it appears in our network too where we have disabled the measurement on own BCCH feature 😉13th March 2008 at 07:54 #51494ManiGuest
Motorola.28th August 2008 at 13:24 #51495RHGuest
I have found the same problem in TEMS.And I have checked there was no co-BCCH and co-BSIC in the network.
My vendor is also Motorola.