View Full Version : A-DCH channel
islam wagih
2015-11-24, 02:43 AM
Dear Experts,
Why A-DCH channel is used in HSDPA?
peanut
2015-11-25, 06:06 PM
Dear islam,
To reply to your question, let me ask you:
how could we send UL data? because HSDPA channel is for DL Transfert only
my response will be: DCH channel or E-DCH channel (in case of HSUPA activated)
Keep in mind that A-DCH or associated DCH is a bidirectional channel used also for Signalling transfert in this case as the data will be tranfered by HSDPA channel
Best regards,
SHIVAM
2015-11-25, 09:06 PM
Hi Islam,
A-DCH is used with HSDPA for sending Data in UL and Control in DL.
islam wagih
2015-11-26, 07:48 AM
Also what will happen if the MS have HSDPA session and he want to make / receive call? .. how will he send its data in UL and signalling in DL while ADCH is used for voice call?
peanut
2015-11-30, 03:42 AM
Dear,
if the mobile is involved in a PS session, he would need to establish a new RAB for CS Call Service, a new DCH will be allocated (apart from A DCH)
this is a multi rab case
Regards,
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