British mobile crowd-sourcing firm OpenSignal has just raised $4 million (around £2.4 million) in a funding round led by Qualcomm, with O’Reilly AlphaTech Ventures and Passion Capital also participating.

OpenSignal offers consumers an app that shares real-world mobile phone coverage information, enabling users to see what levels of service other people have experienced.

Even at Mobile World Congress, the relevance of the mobile network operator can sometimes be forgotten. So for a different perspective on this year's event, we spoke to Samuel Johnston from British mobile crowd-sourcing firm OpenSignal.

Samuel discussed the announcements from MWC14 and OpenSignal's latest report into 4G LTE coverage around the world, as well as giving us an exclusive insight into OpenSignal's next research subject.

A new report about the state of 4G LTE coverage around the world has been published by UK-based business OpenSignal, which creates crowd-sourced mobile network coverage maps from its Android and iOS apps.

The report looks at two key concerns: download speeds and the proportion of time spent in an area covered by an LTE service.

Yesterday afternoon at Mobile World Congress in Barcelona, crowdsourced coverage map provider OpenSignal was named the UK’s most innovative mobile company.

Five finalists took place in a final pitch and judging session as part of the Smart UK Project.

A BBC survey into 3G coverage across the UK has shown that people who were able to receive a data connection only managed to use a 3G signal for 75% of the time.

For almost a quarter of the time they were connecting to 2G GPRS technology.

Mark Bridge writes:

A suggestion that UK mobile phone networks might be forced to improve black-spot coverage by allowing interconnection with their rivals is back in the news. It made the headlines in June and has returned again this week, which is why I could be heard offering my opinion on BBC local radio yesterday morning.

Mark Bridge writes:

If I'm interviewing someone for a podcast, I'll generally use my Zoom H4N recorder and a separate microphone or two. But I don't need the same level of high-quality kit if I'm interviewing someone for a written interview. Why carry an expensive recording device when your mobile phone can do the same job?

Mark Bridge writes:

Contactless payments. They're catching on, aren't they?

But mobile contactless payments haven't proved so popular.

Mark Bridge writes:

I open the iPhone 6 box and discover a phone that feels substantial. Well engineered. Practical. Despite being just 6.9mm deep, it doesn't seem unreasonably delicate.

Mark Bridge writes:

Following my online rant about the customer service I'd received when I suffered a problem with my HTC One, I wrote to Carphone Warehouse.

Iain Graham, James Rosewell and Mark Bridge return to review their mobile industry predictions from last year. Which mergers, partnerships and developments did they forecast correctly... and which didn’t work out as planned?

Later in the programme, the team anticipates some of the topics that will be hitting the headlines during 2016.

Mark Bridge learns about the mobile technology trends at Mobile World Congress 2015 by chatting to James Rosewell of 51Degrees, Dr Kevin Curran from the IEEE and Chris Millington of Doro.

They talk about wearable devices, wireless charging, mobile operating systems and much more... including some of their favourite products from the exhibition.

We're taking a look back at the biggest mobile industry news stories from February 2015, including allegations that the UK's security service tried to breach SIM card security by hacking into one of the world's biggest SIM producers.

We also talk about the planned BT and EE merger, the creation of two new UK virtual networks, some acquisitions in the mobile payment arena and a new Ubuntu smartphone.

In today's programme Mark Bridge talks to Chris Millington, who's Managing Director for Doro UK and Ireland.

They discuss the state of mobile retailing in the UK, the future of wearable devices and - as you might expect - smartphones for seniors.

We're back with a month of mobile industry news, including takeover talks and takeover rumours. O2 and Three are said to be discussing a merger... but is there any truth in the suggestions that BlackBerry could be up for grabs?

We also discuss Apple's record-breaking quarterly figures, the highlights of CES and the launch of Microsoft Windows 10, as well as saying farewell to the current version of Google Glass.