Carrier constellation information in multi-carrier systems
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United States of America Patent
Stats
-
Jun 17, 2008
Grant Date -
Aug 9, 2001
app pub date -
Jan 24, 2001
filing date -
Jan 28, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a multi-carrier system, the carriers (f.sub.0 . . . f.sub.511, f.sub.512 . . . f.sub.1023, . . . , f.sub.3584 . . . f.sub.4095) are grouped in subsets (SUBSET1; SUBSET2; . . . ; SUBSET8). A constellation information transmitting arrangement (BiGi_TA), for instance located in the multi-carrier receiver (RX), produces for each carrier subset (SUBSET1; SUBSET2; . . . ; SUBSET8) a limited set of parameter values (B1, G1; B2, G2; . . . ; B8, G8) and transmits these sets of parameter values (B1, G1; B2, G2; . . . ; B8, G8) to a constellation information receiving arrangement (BiGi_RA), for instance located in the multi-carrier transmitter (TX). Through interpolation of the limited set of parameter values (B1, G1; B2, G2; . . . ; B8, G8) the latter constellation information receiving arrangement (BiGi_RA) determines the constellation where each carrier (f.sub.0 . . . f.sub.511, f.sub.512 . . . f.sub.1023, . . . , f.sub.3584 . . . f.sub.4095) of a carrier subset (SUBSET1; SUBSET2; . . . ; SUBSET8) will be modulated with.
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