Author Archives: Lei Shi

LTE-U: U for unwanted or underappreciated?

Posted on October 21, 2015 by Lei Shi

Confused about LTE-U, LAA? And now MuLTEfire? Don’t worry–you are certainly not the only one. Even 3GPP had struggled for a while before they finally reached consensus on these terminologies. Simply put, LTE-U is the general term for a modified … Continue reading →

Posted in Uncategorized | 1 Comment

So… what is the verdict on the future of the sub-700 MHz band?

Posted on November 5, 2014 by Lei Shi

The short answer is: nobody knows. The slightly more elaborated version is: after the study by Plum consulting, the cost and benefit of deploying a converged platform in sub-700 MJHz band is still unclear because of the uncertainties of the … Continue reading →

Posted in Uncategorized | 3 Comments

Broadband-Broadcast Convergence – to be or not to be?

Posted on July 9, 2014 by Lei Shi

Yesterday, I arrived at the Brussels Midi station in a rainy, grey morning—not a very inspiring start for the day to attend the 2nd workshop organized by European Commission on Broadcast-Broadband Convergence. In the 5-hour workshop, the consulting company Plum hired by … Continue reading →

Posted in Rural Communication, Spectrum, Systems | 3 Comments

VTC-14 Spring: 5G in the spotlight

Posted on May 23, 2014 by Lei Shi

5G certainly is the star of this year’s VTC. The workshop on 5G probably attracted 70% of all the conference attendees on Sunday; the only panel session in the conference is about 5G, one of the two keynotes is again … Continue reading →

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Workshop for Broadcast-Broadband convergence and its impact on spectrum and network use”

Posted on April 2, 2014 by Lei Shi

Last Thursday I attended a workshop organized by European Commission at Brussels. This workshop is for PLUM consulting to present their initial findings on First stakeholder workshop for the study “Challenges and opportunities of broadcast-broadband convergence and its impact on … Continue reading →

Posted in Spectrum | 1 Comment

Some impressions on ITS-13

Posted on October 25, 2013 by Lei Shi

As one of the KTH entourage to ITS -13, I have arrived at an unusually stormy Florence this Sunday. As a first timer to a conference that is not 100% technical oriented, I had a few impressions that I would like … Continue reading →

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Time to Look Beyond TV White Space: Impression on CrownCom’13, July, Washington DC.

Posted on August 13, 2013 by Lei Shi

On July the 6th, I arrived at Washington DC. The atmosphere of the festival still lingered here: the stars & stripes hanging on every balcony; all trash bins full with picnic leftovers. This is the city that hosted the 8th Crowncom’13 and … Continue reading →

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DySPAN’12–to share or not

Posted on October 29, 2012 by Lei Shi

After a very long delay, this year’s DySPAN was finally held two weeks ago in Bellevue, near Seattle. It was still pretty much focused on the TV White Space (TVWS). As far as I can remember, there was only one … Continue reading →

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3G in China

Posted on January 21, 2010 by Lei Shi

Current statistics up till last November: There are three mobile operators in China nowadays after the major re-organization of Chinese telecom market in 2008. 3G networks started commercial operation in China in 2009. China Mobile–the largest one, has around 515 … Continue reading →

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