Retransmission method for multiple antenna system

Details Retransmission method for multiple antenna system Retransmission method for multiple antenna system

2005-12-27

2011-11-08

Pham, Chi (Department: 2471)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C375S267000, C455S101000, C714S748000

Reexamination Certificate

active

08054809

ABSTRACT:
A packet retransmission method for use in a communication system transmitting a signal via at least two antennas is disclosed. The packet retransmission method includes the steps of: a) receiving a signal corresponding to a specific packet, and independently transmitting a signal via the at least two antennas corresponding to the received signal; b) receiving a NACK signal associated with the packet; and c) independently applying an STTD to a real part and an imaginary part of each signal transmitted at step (a), and transmitting the STTD-resultant signal. Therefore, the method separates a real part and an imaginary part from each other, obtains a STTD gain, and can efficiently transmit a packet.

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Hajian M. et al. “Split complex/quaternary space-time block coded multicarrier-CDMA in downlink Rayleigh fading channel”, 2004 IEEE 59th Vehicular Technology Conference. May 2004.
Hajian, M. et al.: Split Complex/Quaternary Space-Time Block Coded Multicarrier-CDMA in Downlink Rayleigh Fading Channel; 59th Vehicular Technology Conference, vol. 2, May 17-19, 2004; pp. 1038-1043. Chapter B.

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