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SK Telecom leads the way with LTE-Advanced
Since I wrote my previous post on the capabilities of HSPA+, LTE and LTE-Advanced, SK Telecom has announced the world’s first end-to-end commercial implementation of LTE-Advanced. Other network...
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5G mobile networks are off the starting blocks
Here in the UK, where LTE services are still in their infancy, it feels premature to be looking forward to the fifth generation of mobile networks. However, in recent months there has been a...
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LTE MIMO theory and practice
One of the tools in the LTE toolbox of radio features is Multiple Input Multiple Output (MIMO) antennas. MIMO enables radio systems to achieve significant performance gains by using multiple antennas...
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Still waiting for Voice over LTE
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...
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Highlights of 3GPP Release 12
A few months ago I wrote a summary of facts and figures on HSPA+, LTE and LTE-Advanced, based on the 3GPP Release 11 standard. With Release 12 due to be finalised in the middle of 2014, I thought I...
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Opportunities and threats from LTE Device-to-Device (D2D) communication
One of the highlights of 3GPP Release 12 is the introduction of LTE Device-to-Device (D2D) discovery and communication. Release 12 is only the start, but ultimately D2D will create a host of new...
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Evolution of LTE-Advanced Carrier Aggregation
One of the major features of LTE-Advanced is Carrier Aggregation, which allows mobile network operators to combine a number of separate LTE carriers. This enables them to increase the peak user data...
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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...
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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...
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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...
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