Abstract
The invention claims an automatic retransmitting request control system in the MIMO-OFDM communication system. In the system ACK/NACK output unit (320) receiving device of the positive feedback information of an acknowledgement or a negative acknowledgement to the sending device according to the result of the cyclic redundancy check. Error data flow detecting unit of the transmission device (310) according to feedback information determining the retransmission data stream the retransmission mode selecting unit (312) selecting the retransmission mode from the following retransmitting mode: (a) using the upper first sends the same wire to send data which is needed to be retransmitted and use wire which is not requested to retransmit to send new data mode; (b) use wire which is not requested to retransmit to send data which is needed to be retransmitted and using other wire to send new data mode; (c) use wire which is not requested to retransmit and using STBC to put up data retransmitting mode; and (d) use all the antenna used and using STBC to put up data retransmitting mode.
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 determination part (310) of the transmitter determines based on 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 transmissionwhile 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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