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. 24, 2006
Filed:
Jun. 23, 2004
Raimund Sönning, Rathsbergstrasse, DE;
Gian Huaman-bollo, Avenariusstrasse, DE;
Raimund Sönning, Rathsbergstrasse, DE;
Gian Huaman-Bollo, Avenariusstrasse, DE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
The invention relates to a time-alignment apparatus and a time-alignment method of a transmitter (TX) of a telecommunication system TELE. Successive data frames (chchchchchch) are written to one or two frame memories (RAMRAM) starting at a respective frame start write address (FRST-ADR). A third frame memory (RAM) having a read state is read out in the column direction such that one data symbol of each storage resource (RES, RES. . . RES) can be output to a modulator unit (BBTX) of the transmitter (TX). The read/write state (WR/RD) of the three frame memories (RAMRAMRAM) is cyclically switched through a first to third alignment mode (MMM) such that always a first write state memory (RAM) and a second write state memory (RAM) are provided. An interleaving process can be carried out together with the time-offset adjustment if the storage resource is constituted by an interleaving matrix. An efficient usage of storage space is obtained if the data bits forming one data symbol are stored together at one memory location of the respective storage resource. The invention is particularly relevant for a CDMA telecommunication system, in order to minimize the interference between the channels.