The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2012
Filed:
Sep. 06, 2007
Wladimir Bocquet, Maisons Laffitte, FR;
Wladimir Bocquet, Maisons Laffitte, FR;
France Telecom, Paris, FR;
Abstract
The present invention relates to a transmission method for a transmitter having Nt transmit antennas. The method (1) spreads symbols in two dimensions by means of a spreading code, the symbols coming from a signal for transmission over Nfft sub-carriers via the Nt transmit antennas. The signal is transmitted with a power pethat is determined per symbol m, per user k=1, . . . , Nu, and per transmit antenna. The principle of the method (1) is to determine (2) a set of powers pethat is constant over a symbol frame, with the distribution of power amongst the users minimizing an overall error criterion under the constraint that the sum of the powers pein the set is equal to the product of the number of users multiplied by the average power emitted per symbol over the users.