Ericsson says it has demonstrated, for the first time, Long Term Evolution (LTE) in both Frequency Division Duplex (FDD) and Time Division Duplex (TDD) mode on the same base station platform. LTE is the only technology that can use the same platform for both paired and unpaired spectrum, thereby enabling large economies of scale for operators.
Ericsson's LTE TDD mode demonstration encompassed a variety of applications and showcased speeds over 90Mbps in the downlink with 2×2 MIMO (Multiple Input Multiple Output). Ericsson has previously demonstrated LTE in FDD mode several times with speeds of up to 160Mbps.
Mobile broadband is rapidly growing, and LTE offers a superior user experience, claims Ericsson. It will enhance more demanding applications like mobile video, blogging, advanced games, rich multimedia telephony and professional services. It also interoperates with existing cellular systems.
LTE is the next evolution in mobile network standards defined by 3GPP (Third Generation Partnership Project) and supports operations in both the paired spectrum and unpaired spectrum. It enables efficient spectrum utilization for both legacy and future wireless frequency bands. Channel bandwidths of 1.4-20MHz are supported. The wide industry support for LTE ensures economies of scale, providing cost-efficient solutions.
Ulf Ewaldsson, Vice President and Head of Product Area Radio at Ericsson, says: "We have now demonstrated that LTE can be used in both paired (FDD) and unpaired spectrum (TDD) on the same base station platform. This means that operators with only unpaired spectrum also can plan for LTE and benefit from the optimal global LTE solutions."