Tuesday, January 29, 2008

Ericsson Demos LTE in Frequency Division Duplex (FDD) and Time Division Duplex (TDD)

Ericsson 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. Ericsson said 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 90 Mbps in the downlink with 2x2 MIMO (Multiple Input Multiple Output). Ericsson has previously demonstrated LTE in FDD mode several times with speeds of up to 160 Mbps.


LTE enables efficient spectrum utilization for both legacy and future wireless frequency bands. Channel bandwidths of 1.4-20MHz are supported.


"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" stated Ulf Ewaldsson, Vice President and Head of Product Area Radio at Ericsson.http://www.ericsson.com

  • On January 17, 2008, 3GPP confirmed that the LTE Terrestrial Radio Access Network technology specifications have been approved and are now under change control, leading to their inclusion in the forthcoming 3GPP Release 8

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