Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2006-10-24
2006-10-24
Nguyen, Hanh (Department: 2616)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S512000, C370S412000, C370S413000, C370S395700
Reexamination Certificate
active
07126967
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 (ch1/0,ch2/0,ch3/0,ch4/0,ch8/0,ch300/0) are written to one or two frame memories (RAM1,RAM2) starting at a respective frame start write address (FRST-ADRchy). A third frame memory (RAM3) having a read state is read out in the column direction such that one data symbol of each storage resource (RES1, RES2. . . RES300) can be output to a modulator unit (BBTX) of the transmitter (TX). The read/write state (WR/RD) of the three frame memories (RAM1,RAM2,RAM3) is cyclically switched through a first to third alignment mode (M1,M2,M3) such that always a first write state memory (RAM1) and a second write state memory (RAM2) 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.
REFERENCES:
patent: 5355515 (1994-10-01), Sicher
patent: 5586119 (1996-12-01), Scribano et al.
patent: 5684794 (1997-11-01), Lopez et al.
patent: 5793772 (1998-08-01), Burke et al.
patent: 6134233 (2000-10-01), Kay
patent: 6243369 (2001-06-01), Grimwood et al.
patent: 6578092 (2003-06-01), Lau et al.
patent: 6590881 (2003-07-01), Wallace et al.
patent: 6665308 (2003-12-01), Rakib et al.
patent: 6717933 (2004-04-01), Sonning et al.
patent: 6771670 (2004-08-01), Pfahler et al.
patent: 6781976 (2004-08-01), Sonning et al.
patent: 6941381 (2005-09-01), McClary et al.
patent: 98/59443 (1998-12-01), None
Patent Abstracts of Japan, 08037657, Jun. 2, 1996.
Huaman-Bollo Gian
Sönning Raimund
Nguyen Hanh
Telefonaktiebolaget LM Ericsson (publ)
LandOfFree
Time-alignment apparatus and method for providing data... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Time-alignment apparatus and method for providing data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-alignment apparatus and method for providing data... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3641715