LTE Circuit Switched (CS) Fallback

Wireless Blog posts on LTE Circuit Switched (CS) Fallback.

Dec, 2013

Still waiting for Voice over LTE

by Alastair Brydon on 12 December 2013

Following a low-profile launch by Three in December 2013, all four of the UK mobile network operators now offer 4G LTE services to at least some of their subscribers. While early impressions of LTE data services are favourable, I have heard mixed reviews about the quality of voice calls for LTE subscribers in the UK,… Read more

Diagram illustrating the main components in the VoLTE SRVCC architecture

Mar, 2013

Voice over LTE (VoLTE) faces a technology and marketing battle

by Alastair Brydon on 24 March 2013

The latest “Evolution to LTE Report” from the Global mobile Suppliers Association (GSA) includes, among other things, a (very short) list of Voice over LTE (VoLTE) launches around the world. Over two years ago I expressed my concern at the lack of long term solutions for voice over LTE. While the situation is gradually becoming clearer, there is… Read more

Latest posts from the Wireless Blog

LTE-Advanced taps into unlicensed spectrum with Licensed Assisted Access

In the quest for substantial increases to the capacity and throughput of mobile networks, unlicensed radio spectrum is expected to have an important role in 5G systems from 2020. However, work is already underway in 3GPP to allow 4G LTE-Advanced networks to take advantage of unlicensed spectrum much sooner. The Licensed Assisted Access (LAA) feature will… Read more

5G mobile network features

Since my first post on fifth generation (5G) mobile networks, in August 2013, there has been a dramatic upsurge in activity and publicity on the topic. Leading organisations in the mobile industry have become increasingly vocal, in white papers, conferences and press releases, about the benefits of 5G, the technologies they expect to feature and the… Read more

HSPA+ goes from strength to strength

With all the focus on LTE, LTE-Advanced and now 5G, it is easy to forget that High Speed Packet Access (HSPA/HSPA+), based on 3G WCDMA, is still the dominant mobile broadband technology worldwide. In February 2014, the Global mobile Suppliers Association (GSA) reported that all WCDMA operators had launched HSPA, with 547 networks providing access to… Read more