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Re^2: Account Manager

Surmust

Between NodeB and RNC, vendors are offering only AAL2. It is very difficult to use AAL5 at this time. RNC can distinguish between AAL2 and AAL5. ATM cells are generated directly from NodeB so it is highly likely to use ATM over SDH in the backbone.

On 6/ 7/01, Saulle Mattei wrote
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>On 6/ 7/01, Ruben Oliveira wrote
>---------------------------------
>>Anybody knows how will be the UMTS backbone? By MicroWaves?
>>Thanks.

>I know, that UMTS backbone is based on SDH or DWDM backbone, because in the 3gpp release '99 all is ATM based, so propably all will be ATM over SDH. Infact between Node B and RNC there are AAL2 and AAL 5 interfaces so it will be ATM.
>Instead in the 3gpp release '00 (or R4 and R5) all will be over IP.
>Regards.

>Saulle Mattei

17/ 7/01