Monday 14 June 2010
Sunday 13 June 2010
MBMS, Digital TV and IP Triple Play in China
Thursday 10 June 2010
Relationship between frequency & capacity, in-building penetration & cell size
Interesting picture from a presentation by Prof Ed Candy Hutchison Whampoa Europe & 3 Group Europe in the LTE World Summit.
Wednesday 9 June 2010
Voice over LTE - GSMA Presentation
Interesting article on Voice options in LTE
The complete issue of the magazine is available here.
Tuesday 8 June 2010
Running live networks on Renewable Energy sources
The picture above lists the features from an ideal renewable energy powered BTS or Node B (or eNodeB for that matter). The picture below shows one of the real life deployments in Sri Lanka.
Saturday 5 June 2010
Your number’s up
In what sounds like the plot of a horror movie, a Bulgarian cellphone company has reportedly suspended the number 0888-888-888 after every single person who was assigned to it in the last 10 years died.
A spokesperson for Bulgarian firm MobilTel refused to comment, telling the Telegraphthat they don’t discuss individual numbers. But the newspaper tracked down the phone number’s eerie history and discovered that each owner had met an untimely end.
The first owner was the former MobilTel CEO, Vladimir Grashnov. In 2001, the 48-year-old died of cancer, although some speculated that he was radioactively poisoned by a business rival.
The number was then passed on to Konstantin Dimitrov, a Bulgarian mafia boss and owner of a $775-million drug smuggling empire. He was shot by a lone assassin in 2003 while eating out with a model in the Netherlands. He was 31.
The third and final owner was Konstantin Dishliev, a real-estate-agent-by-day and a drug-lord-by-night, who secretly ran a massive cocaine trafficking ring. In 2005, after police intercepted $200-million of the white stuff on its way in from Columbia, Mr. Dishliev was assassinated outside a restaurant in Bulgaria’s capital city.
After being temporarily suspended during the investigation into Mr. Dishliev’s death, the number is said to have been de-activated for good. Now anyone who calls is greeted with a recorded message saying the phone is “outside network coverage.”
So are the deaths merely coincidence or proof of a cell phone curse?
Whatever the case, MobilTel could stand to profit off the number by selling it to someone in China, where the number eight is considered lucky. In 2003, a Chinese airline paid 2.33-million yuan (US$280,723) for the phone number 8888-8888.
Thursday 3 June 2010
Quick preview of 3GPP Release-11 Features and Study items
Advanced IP Interconnection of Services
Release 11 Studies
Study on IMS based Peer-to-Peer Content Distribution Services
Objectives of this study item are:
Without technical alternative to using public numbering resources as addresses, and considering the current forecasts and pending applications for numbers made to numbering plan administration agencies, there is a significant risk that some national numbering/dialling plans will run out of numbers in the near future, which would impact not only these M2M services but also the GSM/UMTS service providers in general.
The Objective is to determine an alternative to identify individual devices and route messages between those devices. Requirements for this alternative include:
Wednesday 2 June 2010
ZTE shows off its green credentials
So it was not at all surprising to hear Xiaodong Zhu, CTO of ZTE European marketing in the LTE World Summit talking about the end to end green networks. Green technology is not only helpful to for the 'green credentials' but it can also help reduce Opex which can help recover any additional investments (if any).
More manufacturers will hopefully follow the lead.