Hi,

As per the API provided by Octasic we can handle the RLC/MAC and RRC protocols. So can you please help me with setting up a roadmap in interfacing octasic phy with openbsc3G. Also if we are able to create the interface, do we require programmable sims for testing or it we can be done with sims of any provider.

BR

Snehasish

________________________________ From: Harald Welte laforge@gnumonks.org Sent: Sunday, April 23, 2017 4:23:40 PM To: Snehasish Kar Cc: openbsc@lists.osmocom.org Subject: Re: openbsc 3G supoort with octasic phy

Hi Snehasish,

On Sat, Apr 22, 2017 at 08:18:00PM +0000, Snehasish Kar wrote:

I just wanted to know has anyone tried to use openbsc 3G with octasic 3G phy.

This will not work. Osmocom has implemented the MSC, SGSN and HNB-GW components and expects an Iuh interface.

Octasic provides a PHY interface. So you're missing the RLC/MAC and RRC protocol implementations in between, the RNC functionality and the eNodeB-side Iuh implementation. So basically a very large gap in between.

-- - Harald Welte laforge@gnumonks.org http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

Hi Snehasish,

On Mon, Apr 24, 2017 at 05:16:57AM +0000, Snehasish Kar wrote:

As per the API provided by Octasic we can handle the RLC/MAC and RRC protocols.

This is probably not the right mailing list to discuss the features of a particular proprietary PHY/BTS implementation of a given vendor. But to the best of my knowledge - and that to my contacts inside Octasic R&D - they only provide the PHY interface and do not provide any RLC/MAC/RRC/RLC.

So can you please help me with setting up a roadmap in interfacing octasic phy with openbsc3G.

Your "RNC" part will need to implement an Iuh interface as specified by 3GPP. There's not really anything else to say about this.

In case you are actually impleemnting that part, it would be great if you could follow our example and release it as Open Source. After all, this is about collaborative development that lives by contributions.

Also if we are able to create the interface, do we require programmable sims for testing or it we can be done with sims of any provider.

This is a question completely unrelated to Osmocom, but something very fundamental about UMTS. The short answer is: You need to use your own SIM Cards. They don't need to be programmable, but you need the K/OPC programmed into them.

Regards, Harald