Method and apparatus for transmitting/receiving ACK/NACK in...

Details Method and apparatus for transmitting/receiving ACK/NACK in... Method and apparatus for transmitting/receiving ACK/NACK in...

2008-01-10

2011-10-04

Phung, Luat (Department: 2464)

Multiplex communications

Duplex

Communication over free space

C370S329000, C370S336000, C455S452100, C455S522000

Reexamination Certificate

active

08031643

ABSTRACT:
Disclosed is a method and an apparatus for multiplexing and transmitting/receiving an ACK/NACK resulting from use of a HARQ scheme in an OFDMA system. Frequency and code multiplexing methods are combined with regard to the ACK/NACK to reduce signaling overhead. Frequency multiplexing is conducted by using the MCS level adopted by scheduling channels to improve the ACK/NACK transmitting performance, and code multiplexing is conducted to allocate ACK/NACK resources by using the index of the scheduling channels.

REFERENCES:
patent: 2003/0203737 (2003-10-01), Jarett
patent: 2004/0179493 (2004-09-01), Khan
patent: 2004/0221218 (2004-11-01), Grob et al.
patent: 2007/0291702 (2007-12-01), Nanba et al.
patent: 2008/0084844 (2008-04-01), Reznik et al.
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patent: 1020000031129 (2000-06-01), None
patent: 1020040081060 (2004-09-01), None
patent: 1020050007980 (2005-01-01), None

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