LTE AND BEYOND

Apr 27, 2013

HSS Selection

This is the last point to cover from the list I was presenting many times by now, and the section DNS in LTE will be finished.
Of course if I will face some interesting or will find somewhere example of DNS file will parse it and put it here, so any of you could reuse it.

Last but not least, the HSS Selection procedure.

The Diameter Proxy/Edge agent performs a NAPTR query (as to RFC 3403) for a HSS server in a particular diameter realm (for example, the HPMN or the roaming hub).
These NAPTR records provide a mapping from a domain to the SRV record for contacting a server with the specific transport protocol in the NAPTR services field. The services relevant for the task of transport protocol selection are those with NAPTR service fields with values “AAA+D2x”, where x is a letter that corresponds to a transport protocol supported by the domain, i.e. D2S is for SCTP.

Source(s):
From my own experience

Apr 26, 2013

Greetings Polish Engineers

This post has noting in common with LTE, ok, maybe a little bit.

Lately, more or less since when P4 and PTC have won LTE frequencies, I've noticed traffic from Poland. Before February '13.. maybe one pageview in a 2-3months period, and now look like you guys are preparing for the launch or gathering info on this topic.

So... as I speak kinda fluent Polish..
Powodzenia Panowie pracownicy polskich operatorów komórkowych i niech wam LTE lekkim będzie. - All the best Gents, I wish you smooth LTE deployment.

Pick a proper vendor and you'll be fine, ah and yes, you can hire me also. ;-D

SGSN Selection procedure

As I said the last time, all points of the list below will be covered.
Until now I've covered the MME Selection, PGW and SGW Selection - both can be found through links.
So Now I will start with SGSN Selection (5th point on the list below), and later today will try also to publish the idea of HSS Selection.

Anniversary 40 years of mobile calls

I'm a little bit late, but still I think this is bigger or smaller anniversary for all of us and because of that all the best to all of you telecom-interested and/or telecom-engineers mates!

"The first mobile phone call was made 40 years ago today, on 3 April 1973."
more: http://www.bbc.co.uk/news/technology-22013228