This blog is by Anna-Kaarina Pietilä from Nokia Networks.
Driving home last night it occurred to me that I was imitating one of the main features of our new WCDMA software releases. As more cars joined the highway, the inside lane became busier. I checked my mirrors and, seeing that the outside lane was less congested, I signaled, accelerated and changed lanes. I was able to drive faster and get home sooner.
This is pretty much how our enhanced WCDMA-LTE interworking software works with its Measurement-based LTE Layering and Smart LTE Handover* features. Measurement-based LTE Layering checks that LTE is available (like looking in your mirror before changing lanes) before devices are redirected. The feature ensures that redirections occur seamlessly once LTE is available.
In less than a second, Smart LTE Handover enables fast inter-system handover from WCDMA to LTE. Subscribers are maneuvered from WCDMA to LTE without them noticing, even while using a demanding service like FaceTime.
There is a whole menu of other features in the new release to help operators offer the fastest data connections to their 3G customers. This matters because WCDMA is forecast to be carrying the majority of mobile broadband traffic for a few years to come.
Other new features include:
~ Data Session Profiling which makes web browsing faster by recognizing small and large data session users and treating them separately, enabling a user to access HSPA about 80% quicker.
~ Round Trip Time (RTT) Improvement delivers faster data transfer and a better customer experience by reducing Radio Network Controller (RNC) internal HSPA delays by 1-4 milliseconds for small packets.
~ Enhanced Virtual Antenna Mapping provides HSDPA cell throughput gain of up to 50% by adjusting the phase offset between two base station tranceivers to find the optimum HSDPA cell throughput.
~ Dual Band HSDPA increases bit rates up to 42 Mbps by operating on two different bands for 100% data rate gain for users compared to single carrier operation. This feature allows an operator with only 5 MHz frequency allocation in high and low band to benefit from dual-cell operation.
All the new features are available with Nokia’s RU50 software release package, and many belong to our Liquid Radio WCDMA Software Suite which ensures that the billions of WCDMA subscribers get the best and fastest data experiences on the move.
I’ll be heading home again later today and although I won’t, of course, be using my phone while driving, I’ll be thinking how the basic rule for safe driving – mirror, signal, maneuver – now also applies to WCDMA networks.
For more information, see the Nokia Liquid Radio Software Suites Executive Summaryand the WCDMA/HSPA web page.
To share your thoughts on the topic, join the discussion with @NSNtweets using #NetworksPerform #LTE #WCDMA #3GPP #mobilebroadband
* Handover means continuing with the same data call in LTE.