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:
May. 23, 2006
Filed:
Nov. 18, 1999
Frank Sjöberg, Luleå, SE;
Sarah Kate Wilson, Luleå, SE;
Rickard Nilsson, Luleå, SE;
Daniel Bengtsson, Luleå, SE;
Mikael Isaksson, Luleå, SE;
Tomas Nordström, Luleå, SE;
Per Ödling, Luleå, SE;
Gunnar Bahlenberg, Luleå, SE;
Magnus Johansson, Luleå, SE;
Lennart Olsson, Luleå, SE;
Sven-göran Ökvist, Luleå, SE;
Frank Sjöberg, Luleå, SE;
Sarah Kate Wilson, Luleå, SE;
Rickard Nilsson, Luleå, SE;
Daniel Bengtsson, Luleå, SE;
Mikael Isaksson, Luleå, SE;
Tomas Nordström, Luleå, SE;
Per Ödling, Luleå, SE;
Gunnar Bahlenberg, Luleå, SE;
Magnus Johansson, Luleå, SE;
Lennart Olsson, Luleå, SE;
Sven-Göran Ökvist, Luleå, SE;
STMicroelectronics NV, Amsterdam, NL;
Abstract
One problem, frequently encountered with VDSL transmission systems, is that upstream FEXT produced by system users having short wires can be very strong. Users having shorter wires get high bit rates whereas users having longer wires get low bit rates. In extreme cases it may happen that users with wire lengths greater than 1000 meter cannot transmit data upstream. The present invention provides a VDST transmission system with a plurality of modems. The modems are located at varying distances from a central station. There is a target bit rate for each modem. That modems on shorter wires have control means for reducing their transmit power. This reduces the FEXT produced by these modems enabling modems on longer wires to transmit at higher bit rates.