Patent · US Expired

Carrier constellation information in multi-carrier systems

US7388925B2 · kind B2 · utility

13Cited by

10References

14Claims

0Family size

Assignee

ALCATEL · FR

Inventors

Miguel Peeters · Brussels, BE
Dimitri Saey · Mechelen, BE
Philippe Antoine · Walhain, BE

Key dates

Filing date	Jan 24, 2001
Grant date	Jun 17, 2008
Priority date	—
Expiry date	Jul 31, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH04L5/0007
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a multi-carrier system, the carriers (f0 . . . f511, f512 . . . f1023, . . . , f3584 . . . f4095) 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 (f0 . . . f511, f512 . . . f1023, . . . , f3584 . . . f4095) of a carrier subset (SUBSET1; SUBSET2; . . . ; SUBSET8) will be modulated with.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.