Nokia Solutions and Networks today announced its successful demonstration of the world’s first TDD-FDD carrier aggregation together with Korean operators,
"It gives us immense satisfaction to achieve the world’s first TDD-FDD carrier aggregation, and we are actively pursuing the 3GPP standardization of the technology," said
"Based on the success of this demonstration, KT will continue developing leading technologies for the global TDD market," said
"The significance of TDD-FDD carrier aggregation is that it provides the technical basis for faster and more efficient data services, combining TD-LTE technology which is becoming more and more widely adopted with FDD-LTE used in most networks today," said Jin-hyo Park, senior vice president, head of network technology R&D center at
Operators worldwide need to increase their network capacity to address the growing LTE subscriber base and demand for improved coverage and speed. And more importantly, they need to do so without investing in additional hardware. By aggregating spectrum resources on multiple frequency bands of TD-LTE and FDD LTE, NSN helps operators increase throughput by 50-100%, depending on the level of availability of TDD or FDD spectrum.
With carrier aggregation, operators can, for example, combine their low-frequency FDD bands such as 850 MHz and 900 MHz with high-frequency TDD bands such as 2300 MHz and 2600 MHz in order to provide high-speed mobile broadband in large areas. High-frequency bands are typically uplink limited and have less coverage. In the case of TDD-FDD carrier aggregation, however, operators can improve their high-frequency band TD-LTE coverage by 50-100% using TDD for downlink only and using the lower-frequency FDD for uplink as well as downlink. This increase in TD-LTE coverage thus provides a larger "high- capacity LTE" coverage area.
In addition, TDD-FDD carrier aggregation allows load balancing between TD-LTE and FDD LTE networks. This ensures seamless mobile broadband coverage and optimal speed for all subscribers of TD-LTE and FDD LTE networks, and optimizes the utilization of both bands for a quick return on investment for operators.
For more information on NSN’s mobile broadband capabilities, including a video overview, follow this link. To share your thoughts on the topic, join the discussion with @NSNtweets on Twitter using #mobilebroadband and #LTE. For expert insights, visit our blog.
Nokia Solutions and Networks is the world’s specialist in mobile broadband. From the first ever call on GSM, to the first call on LTE, we operate at the forefront of each generation of mobile technology. Our global experts invent the new capabilities our customers need in their networks. We provide the world’s most efficient mobile networks, the intelligence to maximize the value of those networks, and the services to make it all work seamlessly.
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Phone: +852 9747 5873
Phone: +358 7140 02869
Read the full story at http://www.prweb.com/releases/2014/02/prweb11609178.htm
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