Huawei Abis dimensioing

[RF engineer]

Hi
I need your help in Abis dimensioning for EDGE service for huawei . can any one have good document .
Thanks
RF

[roni]

Hi
I need your help in Abis dimensioning for EDGE service for huawei . can any one have good document .
Thanks
RF

Dear,

Usually, abis timeslot is configured as 1 radio ts = 3 abis ts (16 kbit) in order to have most of the time MSC9,

Br/Roni

[guess.who]

does any one has a good manual of how things work in Edge wrt to the Time slots used and the throughput achieved...

[RF engineer]

Dear,

Usually, abis timeslot is configured as 1 radio ts = 3 abis ts (16 kbit) in order to have most of the time MSC9,

Br/Roni

Dear
Thank you for your response already i have this information but what i want is to see the calculation for this result 1 TS on Um interface need 3 ts on abis.
BR
RF

[roni]

Dear
Thank you for your response already i have this information but what i want is to see the calculation for this result 1 TS on Um interface need 3 ts on abis.
BR
RF

Dear,

As you already know 1 Ts Um in EDGE technology can achive 59 kbit/s, and this can be achived only in MSC9 coding, for that reason to support this speed we need 4X16 kbit/s = 64 kbit/s in Abis interface. But, in reality the speed of 59 kbit/s is very difficult to be achieved and when we increase more the 1 TS in Um interface the abis interface become dinamic so is waste of capacity in Abis to use for each ts in Um 4 ts 16 kbit/s in abis.

For that reason from test and recommandation is calculated the 1 Ts in Um need 3 Ts in Abis so we can achieve MSC9 coding in those circuntancies.

I hope i help you.

Kind regards
Roni

[RF engineer]

Thank you for explanation
BR
RF

[hassen]

Dear,

As you already know 1 Ts Um in EDGE technology can achive 59 kbit/s, and this can be achived only in MSC9 coding, for that reason to support this speed we need 4X16 kbit/s = 64 kbit/s in Abis interface. But, in reality the speed of 59 kbit/s is very difficult to be achieved and when we increase more the 1 TS in Um interface the abis interface become dinamic so is waste of capacity in Abis to use for each ts in Um 4 ts 16 kbit/s in abis.

For that reason from test and recommandation is calculated the 1 Ts in Um need 3 Ts in Abis so we can achieve MSC9 coding in those circuntancies.

I hope i help you.

Kind regards
Roni

hi

you are right because,EDGE uses 8-PSK modulation so it allows to multiply by a factor of 3 data throughput.

Two powers three is equal to eight

br hassen

[hassen]

hi

see this attached file mybe useful for you

br hassen

[marcobernard90]

Hi guys,
I 'm facing a real issue, I've installed LMT BSC6000 succefuly , and when I load in offline a backup , I got nothing ?
any ideas..may be my soft is corrupted??

thanks a lot

[hassen]

Hi

what we have

UNCONCENTRETED ----- 1 DEV
MULTIPLEX16 ----- 1DEV
CONCENTRETED ----- CONFACT2 2 DEV
CONCENTRETED ----- CONFACT4 4DEV


unc: 1TRX --------3dev
conc: 1trx--------2.25 dev ------confact 4
2.5 dev -----confact 2
Mplex16 :1trx ------------2 dev
1DEV = 64K

about the edge dev's calcultion
The rule is each 3 edge dev's defined, give 1 edge dev bonus

Each edge dev ( 64k) can carrier 1 Tch ( 16k)
3 edge dev will be carried 3 Tch
If I remove 1 speech/data dev ( 4*16k ) and define it as edge dev ( 64k ).The 4 Tch lossed above will be distributed as following.
3 edge dev -----> 1 edge dev bonus
4 edge dev -----> 1.25 edge dev bonus ( possibilty to have one more bonus if we have mplex32 idel ) .
5 edge dev -----> 1.5 edge dev bonus ( possibilty to have one more bonus if we have mplex16 idel ).
6 edge dev -----> 2 edge dev bonus
7 edge dev -----> 2.25 edge dev bonus ( possibilty to have one more bonus if we have mplex32 idel ).
8 edge dev -----> 2.5 edge dev bonus ( possibilty to have one more bonus if we have mplex16 idel ).
9 edge dev -----> 3 edge dev bonus ( here it's ok we reach 12 edge dev's ) .

Br Hassen