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1. WO2004006492 - POWER CONTROL OF DIGITAL SUBSCRIBER LINE

Publication Number WO/2004/006492
Publication Date 15.01.2004
International Application No. PCT/FI2002/000601
International Filing Date 03.07.2002
IPC
H04B 3/46 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
3Line transmission systems
02Details
46Monitoring; Testing
H04L 5/02 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
02Channels characterised by the type of signal
H04L 5/14 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
14Two-way operation using the same type of signal, i.e. duplex
H04L 25/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
08Modifications for reducing interference; Modifications for reducing effects due to line faults
CPC
H04B 2203/5408
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
2203Indexing scheme relating to line transmission systems
54Aspects of powerline communications not already covered by H04B3/54 and its subgroups
5404Methods of transmitting or receiving signals via power distribution lines
5408using protocols
H04B 3/36
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
3Line transmission systems
02Details
36Repeater circuits
H04B 3/487
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
3Line transmission systems
02Details
46Monitoring; Testing
487Testing crosstalk effects
H04B 3/542
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
3Line transmission systems
54Systems for transmission via power distribution lines
542the information being in digital form
H04J 1/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
1Frequency-division multiplex systems
02Details
12Arrangements for reducing cross-talk between channels
H04L 25/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
08Modifications for reducing interference; Modifications for reducing effects due to line faults ; ; Receiver end arrangements for detecting or overcoming line faults
Applicants
  • WIRELESS LAN SYSTEMS OY [FI]/[FI] (AllExceptUS)
  • LAAKSO, Timo, I. [FI]/[FI] (UsOnly)
  • TOMMISKA, Antti [FI]/[FI] (UsOnly)
Inventors
  • LAAKSO, Timo, I.
  • TOMMISKA, Antti
Agents
  • INNOPAT OY LTD.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) POWER CONTROL OF DIGITAL SUBSCRIBER LINE
(FR) COMMANDE DE PUISSANCE DE LIGNE D'ABONNE NUMERIQUE
Abstract
(EN)
This invention relates to power control arrangements of digital subscriber lines. The invention controls parallel subscriber lines simultaneously in an or-ganized way, based on the measurements of crosstalk conditions of the sub-scriber lines. Different crosstalk conditions are measured. The organized way to control the transmission power levels ensures that the crosstalk does not increase to an unacceptable level in each of the subscriber lines.
(FR)
L'invention concerne des agencements de commande de puissance de lignes d'abonnés numériques. Elle permet de commander simultanément des lignes parallèles d'abonnés d'une manière organisée reposant sur les mesures des conditions de diaphonie de ces lignes. Différentes conditions de diaphonie sont mesurées. La manière organisée de commande des niveaux de puissance d'émission garantit que la diaphonie n'augmente pas à un niveau inacceptable dans chacune des lignes d'abonnés.
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