What is LTE Advanced?

lte advancedWhat we commonly call 4G+ is really LTE Advanced, a standard based on the 3GPP Release 10 norm, passed in March 2011.

It is, basically, a number of improvements that enhance the LTE (Long Term Evolution) standard stemming from the 3GPP Release 9 norm.

The main goal of the LTE Advanced standard is to improve LTE and broaden its capacity. That is, to guarantee a higher number of simultaneous users benefit from a better service.

The following is needed to achieve this goal:

  •  Better spectral efficiency, of up to 30bps/HZ.
  •  Variable bandwidth, capable of ranging from 20MHz to 100MHz by adding up to 5 20MHz carriers.
  •  Better use of antennas with 8×8 MIMO technology for downstream operations and 4×4 MIMO for upstream ones.

This means peak upload speeds of 1.5Gbps and download speeds of 3Gbps can be achieved.

Other standard improvements result from an advanced network topology, which supports both macro cells and a mixture of low-power nodes (femtocells, picocells and Relay Nodes). This gives users a far better service thanks to mixed network topologies, capable of combining big and small cells and of providing service to a larger number of simultaneously active users.

The standard’s other main goal is to enhance the service provided to users who are at the edge of a cell. This is achieved by providing simultaneous communication from the cell node the user is connected to and from the node belonging to the neighboring cell.  The main improvement linked to this was added to 3GPP Release 11 and is known as CoMP (Coordinated Multipoint Operation). It allows the user to communicate, in a coordinated fashion, with two base stations and achieve a spectral efficiency of 2.4bps/Hz/cell with a 2X2 MIMO configuration.

Given the content we find in today’s mobile applications, the upstream and downstream speeds may seem somewhat excessive. The goal, however, is not to give maximum speed to a single user, but to increase the speed for all and provide the best possible service to a growing number of users operating in each cell.

LTE advanced has succeeded in introducing mobile communication (for service provision) in many new sectors where it was previously unthinkable, whilst doing so in an effective and efficient manner. The mobility market (trains and automation) is an eloquent example.

In Teldat, we work using LTE Advanced technology and we cover every available band worldwide (both for LTE-FDD and LTE-TDD networks). Moreover, our devices are LTE Cat 6. This guarantees LTE Advanced operation, and allows two carriers to be added in two different bands (for a 40 MHz aggregated bandwidth) to double the LTE Release 9 bandwidth. We also use 2×2 and 4×2 MIMO technology, which improves performance in every environment and is compatible with LTE Release 11.

 

Pablo Alonso: Pablo Alonso is Telecommunications and Development Engineer in the Teldat R&D Department. Within this department is part of the team dedicated to the Industrial & Mobility business line and he is specialized in cellular connections.

Starting afresh

start 2016A new year begins once more. Two things can happen when we review the figures for the previous year: the results may be good or we have not achieved the expectations set at the beginning of the year. In both cases, everything must start again from scratch and you can start to feel a little unsettled by the prospect of the uncertainty of what lies down the line. If we did well, we lose that safety net sensation that the results give us. And if we did badly, then we look to the New Year for change and encouraging results.

At Teldat, we come under the first case. The year that is departing has left us with a very good set of results, reflecting the three consistently upheld tenets of our President: Perseverance in abundance, lots of talent and unlimited hard work. If we add to this a knack for knowing how to be in the right place at the right time (which some put down to luck and others to experience), then the results are not only good but also well-deserved.

And now we have to start over, with that familiar start-of-the-year-feeling that makes us wonder whether we will be able to do it again. “Yes” can be the only answer to this question and we must start now by writing down the results of the coming year. And the only way to conquer our fear of the blank page is to write a series of workable goals with the same level of enthusiasm and effort as every year.

We have the following objectives for 2016:

  1. The first concerns the most important part of our company: our Customers. And here we emphasize the word Customers because (although it’s true that in our market it’s not companies that have customers but rather the supposed customers that have suppliers) a key feature of Teldat’s success and an essential feature of our business model is our involvement in the projects undertaken by the parties using our technology. That is why we can consider them Customers (in the traditional sense) and one of our objectives, the first and most important of them, is to work with our customers and for them on a continual basis with the same dedication.
  2. The second has to do with technology, the soul of our company: 2016 will undoubtedly be the year of consolidation for the new products developed and launched in 2015 (Cloud Management, Wi-Fi, be.IP, SD-WAN) and for new product launches (On-Board, Industrials/Utilities, new cloud applications), many of them aimed at solving the complex needs of our customers in specific vertical sectors.
  3. The third concerns our company, its business growth and scope. It’s a long time since we left Spanish borders and started expanding Teldat’s international business (with the incorporation of our German branch). During this time we have expanded into more than thirty-five different countries and operate on four out of five continents. But that is not enough. This year we intend to go even further; to increase our penetration in some of those markets, for us still emerging, and to be recognized as the global supplier that we already are, even though we don’t have as many means as some of our competitors to trumpet the news.

These are our guidelines for the coming year to be reviewed in a little under a year, when we expect to achieve, at the very least, a similar set of results to the year now past right.

We would like to wish all our readers a very happy 2016. For Teldat, the year ahead gives us another chance to get it right.

Lola Miravet: Telecommunications Engineer, is the Head of Teldat’s Corporate Marketing Department.