Carrier constellation information in multi-carrier systems

摘要

In a multi-carrier system, the carriers (f₀ . . . f₅₁₁, f₅₁₂ . . . f₁₀₂₃, . . . , f₃₅₈₄ . . . f₄₀₉₅) are grouped in subsets (SUBSET 1; SUBSET 2; . . . ; SUBSET 8 ). A constellation information transmitting arrangement (BiGi_TA), for instance located in the multi-carrier receiver (RX), produces for each carrier subset (SUBSET 1; SUBSET 2; . . . ; SUBSET 8 ) a limited set of parameter values (B 1, G 1; B 2, G 2; . . . ; B 8, G 8 ) and transmits these sets of parameter values (B 1, G 1; B 2, G 2; . . . ; B 8, G 8 ) 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 (B 1, G 1; B 2, G 2; . . . ; B 8, G 8 ) the latter constellation information receiving arrangement (BiGi_RA) determines the constellation where each carrier (f₀ . . . f₅₁₁, f₅₁₂ . . . f₁₀₂₃, . . . , f₃₅₈₄ . . . f₄₀₉₅) of a carrier subset (SUBSET 1; SUBSET 2; . . . ; SUBSET 8 ) will be modulated with.