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E1 TS

• This topic has 7 replies, 1 voice, and was last updated 12 years ago by Hasan Murad.
Viewing 8 posts - 1 through 8 (of 8 total)
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Jack
Guest

dears
– min. E1 TS or E1 SubTS required in a site (3+3+3) to activate MCS9?
– if we added extra or more than required will improve something?
– if we had a site with 2+2+2 and one E1; what will be min. required E1 TS to keep all subs. with MSC9?
– if I had a site with 4+4+4 with 1 E1 and just 2 idle TSs are defined; what dose that mean?
hope I get answers with some justifications will be highly appreciated please

Br.

Tanuj
Guest

1) As we are using in our n/w, min 4 E1 subts needed for edge, it cant be increased more than 4, for gprs it 1 and for cs3/4 its 1.

2)for 2/2/2 its 2.25*6=18 + 3, so 32 – 22= 10 so 2 edge channels + 1 gprs channel at max only if u are not using any HR, otherwise u will get E1 constraint.

3)4/4/4 site , 2.25*112=27 , +3 for signaling, so 32-30=2 TS left on E1.

1 trx take 2.25 on the E1 hence this calculation, hope it clears your question.

Tanuj
Guest

To increase more subts you need another E1 on the site

vikas
Guest

hiiii jack/tanuj

if i have a configuration with 4+4+4.then can u tell me how many subcribers it can handle.

Jack
Guest

Thanks Tanuj;
Your time really appreciated; just why you been taking 2.25 for each TRX? I saw some taking 128 Kbps and 16 Kbps for RSL and you toke 2.25 E1TS and 3 for signaling again? can you give us short Expl. please?

Br.

Tanuj
Guest

Hi Vikas,
if you have 4/4/4 config, then supposing each cell has 1 SDCCH and SACH,FACH etc leaving 4TS free on BCCH and other trx have 8ts, then 8*3+4=28, the for 3 cells it becomes 28*3=84 calls. so at max 84 tch can be configured at Full rate so 84 subscribers but you may have to increase the SD count if its a busy site. i have not considered any pdtch configured on site

Tanuj
Guest

Hi Jack

1 trx = 128kbps and rsl =16 kbps, 1 E1=2.048 mbps therefore 2.048/32=0.064 mbps = 64 kbps i.e. 1TS = 64kbps, so 128 kbps= 2TS + for rsl 16 kbps ie 0.25ts so total 1 trx=2.25.

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