LTE test drive, Part 2: Video marathon

14 Jun 2011

As explained yesterday, I was given the opportunity to test Hong Kong CSL’s LTE network with a ZTE dongle and a loaner laptop. I decided to test out the network in both a stationary/nomadic setting, and a fully mobile setting.

Here’s how that went.


The obvious place to start was the ferry service between Central and Discovery Bay, not least since that route already has Wi-Fi service courtesy of the ferry company and PCCW, which means I had something to which I could compare LTE. The Wi-Fi on that ferry route is free, but dropouts are common and the log-in server capricious.

LTE is an improvement in terms of logging on, but not much else. Over three trips, I tried several video sites (including YouTube, BBC World, The Daily Show and our very own Telecom Channel), and I got a whole lot of buffering messages, even when the connection manager indicated I was on the LTE network (as opposed to DC-HSPA+, normal HSPA+ or UMTS) will full bars.

Site access was also excruciatingly slow at times, particularly the BBC web site, (which also had a tendency to crash the IE browser). Signal strength also varied on occasion – during the third trip, the signal dropped completely during the last ten minutes of the trip and never returned.

To be fair, the waters between Hong Kong Island and Lantau aren’t exactly heavy-data-usage areas. But regular ferry-goers will tell you that wireless broadband is a welcome way to kill time (which is why the Discovery Bay ferry company sprung for Wi-Fi), so it does matter how LTE fares in the same situation, especially given its “connect anywhere” pitch.

That said, my test on the Airport Xpress train from Central to Chek Lap Kok airport was a much better experience overall. I had full LTE the whole trip, and webpage loading was quite fast, although I still got a few buffering messages with the videos.


These tests were fairly straightforward – sit in a coffee shop or on a public bench and surf away. And the results were better – most of the time.

Tung Chung (a village on Lantau island near the airport) was the best experience of the locations I tried. I spent an hour watching HD movie trailers (several at a time) and encountered no problems.

It was a similar story in Central district and East Hong Kong Island, though I got a few buffering circles and, in one case, a “No Service” message.

Which brings us to the shopping mall in West Kowloon, which was pretty bad. The signal kept fluctuating between DC, HSPA+ and UMTS, and dropped out entirely four (4) times whilst trying to watch a four-minute video. Thinking a reboot was in order, I quit the connection manager and couldn’t get the dongle to restart again.

Whether that’s the fault of the network, the dongle, the connection manager or the Aspire is difficult to say, of course, although considering I was in a food court next to an ice-skating rink, it could well be related to the indoor coverage issues that come with the 2.1/.2.6 GHz band.

But from a POV of a user who doesn't know the first thing about RF propagation, all of that would be irrelevant. Bottom line: I couldn’t get a stable connection.

Tomorrow: the thrilling conclusion!

BACK TO: Part 1: The set-up

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