Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2007-04-18
2011-11-15
Sinkantarakorn, Pao (Department: 2464)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C455S013300, C455S562100
Reexamination Certificate
active
08059610
ABSTRACT:
A method and apparatus for implementing hybrid automatic repeat request (H-ARQ) in a multiple-input multiple-output (MIMO) wireless communication system are disclosed. A transmitter transmits at least two data packets via two or more antennas. If at least one of the data packets is not successfully transmitted, the transmitter retransmits the data packets while rearranging the data packets in an orthogonal spreading manner. Alternatively, the transmitter may retransmit only the unsuccessfully transmitted data packet along with a new data packet which replaces a successfully transmitted data packet. The unsuccessfully transmitted data packet may simply be repeated without changing its format. When only the unsuccessfully transmitted data packet is retransmitted along with the new data packet, the transmissions may be combined to recover the retransmitted data packet and the new data packet simultaneously.
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Grieco Donald M.
Li Yingxue
Shin Sung-Hyuk
Zhang Guodong
InterDigital Technology Corporation
Kao Wei-po
Sinkantarakorn Pao
Volpe and Koenig P.C.
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