- This topic has 252 replies, 1 voice, and was last updated 8 years, 7 months ago by DangerousMinds.
25th June 2008 at 05:09 #35401MKTGuest
How many TRX we can use on one E1 in Nokia?
It is 12.
But it is not the E1 who restricted this number to go further,rather it is their cabinet capacity.
In nokia ultrasite BTS they have the provision only for 12 TRX per cabinet.
If you want to go further you have to use another cabinet. And that is nothing but a separate BTS.
However the only BTS site in the world with the capacity 36+36+36 is of Nokia and is at Macca in UAE.
Here 9 is the maximum limit for chaining cabinets in Nokia.
Regards25th June 2008 at 07:22 #35402pixGuest
great info, thanks MKT
nokia ultrasite BTS is supposed to be stacked in order to achieve 24 trx/site, isn’t it ?25th June 2008 at 08:18 #35403MKTGuest
24 TRX per site?
I think you are referring to 8+8+8 configuration.
Yes you can achieve 888 configuration with two cabinets.
But as i have mentioned earlier Nokia has a limitation of stacking maximum 9 cabinets in a row.
That is why
9 x 12 =108 TRX maximum TRX per site.
At mecca UAE has gone for maximum option.
It is not possible everywhere that all the 124 carriers are available to one operator. In UAE it is an exception as operator is government itself, and thus they have all the frequencies.
We have 31 frequencies per operator. And four operators are in the field. 4 x 31=124
Usual practice adopted is 444 for Nokia BTS sites.
Nokia has made a very bad image for its equipments in India.
Huwaei (china) is moving fast in the race…
and ericsson is back in the race.
I think this trend is worldwide, as nokia fails to deliver in quality, particularly at BTS level.The BTS of Nokia generates a lot of heat. The TRX fault rate is very high. Due to heat the cooling requirements are very high for Nokia and hence the running cost is high for operators.
Alcatel is having its footprints mainly in the PSTN segment with switches like OCB.However it do operates in GSM segment also.
Regards26th June 2008 at 16:37 #35404pixGuest
alcatel solution is pretty neat ! good bts, good bsc, great optimization tool… just some problems with the TRX last year 🙂 but other than that, they have a very competitive solution for GSM.27th June 2008 at 10:19 #35405MONDAYGuest
Pls., how many GSM lines can one BTS contain?27th June 2008 at 12:25 #35406RamiGuest
yes you right Pix, the are very good away from the TRXs, but recently they started sawpping/replacing these faulty TRXs…
What I really like is the RNO tool!27th June 2008 at 12:33 #35407RamiGuest
The BTS capacity depend on its configuration i.e. TRXs installed.
As you know, GSM system is a TDMA and thus each TRX can serve 8 subscribers @ once (eahc one will occupy a TS)
Thats means if you have a 333 BTS then you can serve 3*8 + 3*8 + 3*8 subscribers at the same time.
If you mean to say how many subcribers from Erlang-B point of view then it is the traffic offered divided by the average mErlang per subscribers…
Regards,30th June 2008 at 02:15 #35408cantikGuest
do u know abaut ericsson trafic node21st July 2008 at 20:14 #35409bombayaGuest
i want to know all 2G/3G, GSM WCDMA, MICROWAVE, RF, BSS, OSS, MSC, SMS, SGSN, RNC, NODE B, WHY NOT START A?
Can somebody help me?22nd July 2008 at 05:23 #35410pankaj patilGuest
Can somebody tell me the fundamental of 28 mhz bandwidth for microwave for 16X2 capacity.25th July 2008 at 00:05 #35411finnGuest
28MHz or 28GHz or radio you are talking about?25th July 2008 at 00:07 #35412finnGuest
We need a lot of RICE to know all 2G/3G, GSM WCDMA, MICROWAVE, RF, BSS, OSS, MSC, SMS, SGSN, RNC, NODE B, WIMAX.
just get around the forum or google white papers for every technology you want to know. everything is on the net.. for specific equipment it depends on vendors website.21st June 2012 at 16:07 #35413DangerousMindsGuest
I want to disable 2G to 3G handovers in our NSN network.
utranHoThScTpdc is 100 and minEcnoThreshold is 18 (i.e. -15 dB)in the network.
I changed QsearchC from 7 to 15 for a site. The number of GSM-WCDMA HO attempts decreased but did not touch zero.
Can anybody please help?
Thanks and Rgds/