METHODS, APPARATUS AND COMPUTER PROGRAMS FOR HALF-DUPLEX FREQUENCY DIVISION DUPLEXING

A wireless device is operated such that transmission and reception by the wireless device uses half-duplex frequency division duplexing. The wireless device transmits in an uplink subframe at a first frequency and receives in a downlink subframe at a second frequency. The uplink subframe and downlin...

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Bibliographic Details
Main Authors CHARBIT, GILLES, FAN, JIANKE
Format Patent
LanguageEnglish
French
German
Published 12.08.2015
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:A wireless device is operated such that transmission and reception by the wireless device uses half-duplex frequency division duplexing. The wireless device transmits in an uplink subframe at a first frequency and receives in a downlink subframe at a second frequency. The uplink subframe and downlink subframe occur at different times. The frame structure that is used has a special subframe (80) to allow at least switching from downlink reception to uplink transmission. In one example, the special subframe (80) consists only of a downlink pilot time slot (85), to allow downlink pilot signals to be received at the wireless device, and a guard period (90), during which no data is received at or transmitted by the wireless device. In another example, the special sub frame (80) comprises a downlink pilot time slot (85) and a guard period (90), the special subframe (80) having no uplink pilot time slot for uplink pilot signals.
Bibliography:Application Number: EP20120790962