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pierredv : o2   5

Ericsson: Expired certificate caused O2 and SoftBank outages | ZDNet Dec 2018
"An expired certificate was the cause of a data outage across O2 and SoftBank mobile services in the United Kingdom and Japan, respectively, Ericsson has revealed."

"The issue affected nodes in the core networks of customers using two software versions of the Serving GPRS Support Node - Mobility Management Entity (SGSN-MME)"

O2  Ericsson  cyber-spectrum  spectrum-vulnerability  outages 
february 2019 by pierredv
Ofcom sets 900 and 1800 MHz licence fees and consults on 3.4 and 3.6 GHz fees | PolicyTracker: Jan 2019
"UK mobile network operators (MNOs) will pay £1.09 million ($1.4 million) per MHz per year for 900 MHz spectrum, and £0.805 million ($1.02 million) per MHz annually for 1800 MHz spectrum beginning 31 January 2019, Ofcom said.

The levels reflect the full market value of the frequencies and take into account input from Vodafone, Telefónica (O2), EE and H3G (Three), as well as evidence from previous UK spectrum auctions and international benchmarks, the regulator added. The lump-sum values were converted into equivalent annual payments using an annualisation rate derived from a post-tax discount rate and a tax adjustment factor."
PolicyTracker  Ofcom  spectrum  cellular  Vodafone  O2  EE  spectrum-fees  900MHz  1800MHz 
january 2019 by pierredv
Lessons from the O2 Network Outage: The Real Cost of Manual Processes, Juha Holkkola Dec 2018
"While the finding that network downtime constitutes 93.5% of the real total cost of manual network management steps was a real eye-opener, these numbers reveal an even more interesting finding. That is, if one invests 20 million into automating the propagation of human errors, the chances are that the cost of downtime can greatly exceed the value of the actual automation investment itself. "
spectrum-vulnerability  denial-of-spectrum  cyber-spectrum  CorcleID  O2  hacking 
december 2018 by pierredv
O2 4G data network restored after day-long outage - BBC News, Dec 2018
“Ericsson UK boss Marielle Lindgren said the "faulty software" that had caused the issues was being decommissioned. … Ericsson said there had been network disruption for customers in multiple countries. Ericsson president Börje Ekholm … said "an initial root cause analysis" had indicated that the "main issue was an expired certificate in the software versions installed with these customers".”
BBC  Ericsson  cellular  O2  cyber-spectrum 
december 2018 by pierredv
Tracking down wideband interference - Land Mobile 20th August 2012
"Two troublesome interference problems which are affecting GSM-R railway communications in the UK – and in other countries which employ the GSM-R radio standard – have been pinned down in a report compiled for Network Rail by wireless experts at Red-M, now a part of Affini. Their work builds on an earlier study carried out by Red-M for Ofcom." Talks about narrowband/broadband interference; one fix is to improve receiver selectivity.
GSM-R  cellular  Vodafone  railroads  GSM  OOBE  receiver  filtering  LTE  interference  O2  Ofcom  receiver  selectivity 
april 2013 by pierredv

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