Abstract
An automatic retransmission request control system in OFDM-MIMO communication system. In this system an ACK/NACK output part (320) of a receiver transmits to a transmitter a feedback information of positive or negative response based on the result of a cyclic redundancy check. An error data stream decision part (310) of the transmitter determines basedon the feedback information a data stream that need be retransmitted and a retransmission mode selection part (312) selects a retransmission mode from among (a) a mode in which to transmit the data which are to be retransmitted via the same antenna as in the previous transmission while transmitting at the same time new data by use of an antenna via which no data retransmission is requested; (b) a mode in which to transmit the data which are to be retransmitted via an antenna via which no retransmission is requested while transmitting new data via another antenna at the same time; (c) a mode in which to use STBC to retransmit the data via an antenna via which no retransmission is requested; and (d) a mode in which to use STBC to retransmit the data via all the available antennas.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G | 15/03/2010 | ISLD-201004-003 | PANASONIC CORP |
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| WO2006030478A1 | 4G | 15/03/2010 | ISLD-201004-003 | PANASONIC CORP |
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.