Transmitter and frequency hopping method of the same

Pulse or digital communications – Spread spectrum – Frequency hopping

Reexamination Certificate

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Reexamination Certificate

active

07936805

ABSTRACT:
Provided are a transmitter and a frequency hopping method thereof. The transmitter includes: a channel encoder outputting a bit stream of encoded information data; a symbol mapper outputting a symbol stream obtained by constellating the bit stream; a frequency allocation and hopping part determining a frequency to be allocated to the symbol stream; and a multi-carrier modulator loading and outputting the symbol stream output by the frequency allocation and hopping part on a multi-carrier, wherein the frequency allocation and hopping part comprises a logical frequency mapping part determining a frequency capable of optimally averaging adjacent cell interference, and a physical frequency mapping part mapping the determined frequency one-to-one and determining a frequency.

REFERENCES:
patent: 6275518 (2001-08-01), Takahashi et al.
patent: 6501785 (2002-12-01), Chang et al.
patent: 6711120 (2004-03-01), Laroia et al.
patent: 7502310 (2009-03-01), Hwang et al.
patent: 08-331127 (2006-12-01), None
patent: 10-2000-0062825 (2000-10-01), None
patent: 10-2001-0003434 (2001-01-01), None
patent: 10-2001-0098569 (2001-11-01), None
patent: 10-2004-0057875 (2004-07-01), None
Chen, et al., “Multicarrier CDMA with adaptive frequency hopping for mobile radio systems,” IEEE J., Selected Areas in Communication, 14(9):1852-1858 (Dec. 1996).

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