RADIO BASE STATION APPARATUS, MOBILE TERMINAL APPARATUS AND RADIO COMMUNICATION METHOD

The present invention provides a radio base station apparatus, a radio terminal apparatus and a radio communication method that can realize highly efficient fallback mode when transmission diversity is adopted in fallback mode in an LTE-A system. With the radio communication method of the present in...

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Bibliographic Details
Main Authors MIKI NOBUHIKO, TAOKA HIDEKAZU
Format Patent
LanguageEnglish
Published 20.12.2012
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
WIRELESS COMMUNICATIONS NETWORKS
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Summary:The present invention provides a radio base station apparatus, a radio terminal apparatus and a radio communication method that can realize highly efficient fallback mode when transmission diversity is adopted in fallback mode in an LTE-A system. With the radio communication method of the present invention, a radio base station apparatus, in fall back mode, performs scheduling for fallback mode, which takes into account the reference signal structures in fallback mode, and transmits a transmission signal after the scheduling by open loop control transmission diversity, and a mobile terminal apparatus receives a downlink signal including mode information, and, in fallback mode, performs channel estimation for fallback mode based on the mode information, and demodulates the downlink signal using the acquired channel estimation value.
Bibliography:Application Number: US201113520443