BR9709664A - Process and apparatus for implementing a transmission connection linked two-way wire - Google Patents

Process and apparatus for implementing a transmission connection linked two-way wire

Info

Publication number
BR9709664A
BR9709664A BR9709664-4A BR9709664A BR9709664A BR 9709664 A BR9709664 A BR 9709664A BR 9709664 A BR9709664 A BR 9709664A BR 9709664 A BR9709664 A BR 9709664A
Authority
BR
Brazil
Prior art keywords
transmission
transmission connection
sub
implementing
apparatus
Prior art date
Application number
BR9709664-4A
Other languages
Portuguese (pt)
Inventor
Jari Lindholm
Antti Tommiska
Original Assignee
Nokia Telecommunications Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FI962362A priority Critical patent/FI962362A0/en
Application filed by Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to PCT/FI1997/000279 priority patent/WO1997048206A1/en
Publication of BR9709664A publication Critical patent/BR9709664A/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B15/00Suppression or limitation of noise or interference
    • H04B15/02Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver, in a tape-recorder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2602Signal structure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/06Channels characterised by the type of signal the signals being represented by different frequencies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2215/00Reducing interference at the transmission system level
    • H04B2215/064Reduction of clock or synthesizer reference frequency harmonics
    • H04B2215/068Reduction of clock or synthesizer reference frequency harmonics by avoiding a reception frequency range

Abstract

"PROCESSO, E, APARELHO PARA IMPLEMENTAR UMA CONEXãO DE TRANSMISSãO LIGADA A FIO BIDIRECIONAL". "PROCESS, AND, TO IMPLEMENT A DEVICE ON TRANSMISSION OF CONNECTION WIRE TWO-WAY". A presente invenção refere-se a um processo e a um aparelho para implementar uma conexão de transmissão ligada a fio, especialmente uma conexão de transmissão VDSL. The present invention relates to a method and an apparatus for implementing a transmission connection wire connected to especially one VDSL transmission connection. A conexão de transmissão é implementada em forma elétrica, de maneira que uma faixa de freq³ência separada seja reservada para um ou outra direção de transmissão. The transmission link is implemented in electric form, so that a separate freq³ência range is reserved for one or the other direction of transmission. Para se permitir a filtração eficaz de interferências de radiofreq³ência pelo uso de um aparelho tão simples quanto possível, a faixa de freq³ência da linha de transmissão (13) é dividida em subfaixas limitadas por faixas de freq³ência de radioamador internacionais (AB1...AB6) e a conexão de transmissão é implementada em pelo menos algumas dessas subfaixas (a) pela geração para cada subfaixa a ser usada de uma onda portadora com seu próprio modulador e (b) pela divisão dos bits da corrente de bits (DATA-IN) a ser transmitidas entre os moduladores da direção de transmissão em questão, de modo que cada onda portadora seja modulada com alguns desse bits. To allow efficient filtration radiofreq³ência interference by using a device as simple as possible, the freq³ência range of transmission line (13) is divided into sub-bands limited by freq³ência tracks international amateur (AB1 ... AB6) and the transmission connection is implemented in at least some of these sub-bands (a) by generating for each sub-band to be used in a carrier wave with its own modulator and (b) by dividing the bit stream of bits (DATA iN) at it is transmitted between the modulators of the transmission direction in question so that each carrier wave is modulated with some of these bits.
BR9709664-4A 1996-06-07 1997-05-09 Process and apparatus for implementing a transmission connection linked two-way wire BR9709664A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI962362A FI962362A0 (en) 1996-06-07 1996-06-07 Foerfarande Science anlaeggning Foer genomfoerande of a tvaodbaserad oeverfoeringsfoerbindelse
PCT/FI1997/000279 WO1997048206A1 (en) 1996-06-07 1997-05-09 Method and apparatus for implementing a wireline transmission connection

Publications (1)

Publication Number Publication Date
BR9709664A true BR9709664A (en) 2000-05-02

Family

ID=8546156

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9709664-4A BR9709664A (en) 1996-06-07 1997-05-09 Process and apparatus for implementing a transmission connection linked two-way wire

Country Status (12)

Country Link
EP (1) EP0906676A1 (en)
JP (1) JP2000512450A (en)
AU (1) AU724605B2 (en)
BR (1) BR9709664A (en)
CA (1) CA2257799A1 (en)
CZ (1) CZ288913B6 (en)
FI (1) FI962362A0 (en)
HU (1) HU0001983A3 (en)
IL (1) IL127362D0 (en)
NZ (1) NZ333199A (en)
PL (1) PL182887B1 (en)
WO (1) WO1997048206A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998052297A2 (en) * 1997-05-15 1998-11-19 Spectraplex, Inc. Parallel transmission method with diverse physical channel allocation
FI972346A (en) 1997-06-02 1998-12-03 Nokia Telecommunications Oy A method and apparatus for implementing a transmission
AT407684B (en) * 1997-12-23 2001-05-25 Ericsson Austria Ag A filter assembly
FI105973B (en) * 1998-11-19 2000-10-31 Tellabs Oy A method for multi-carrier system modems for determining applying the frequency band distribution system and the use of the method
DE19926699C2 (en) * 1999-06-11 2003-10-30 Vacuumschmelze Gmbh High-pass a crossover for ADSL systems
JP2002077084A (en) * 2000-09-04 2002-03-15 Matsushita Electric Ind Co Ltd Signal distribution system, transmitter, receiver, medium and information assembly
US8090857B2 (en) 2003-11-24 2012-01-03 Qualcomm Atheros, Inc. Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks
US8175190B2 (en) * 2005-07-27 2012-05-08 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
EP2337245B1 (en) * 2009-12-17 2013-04-10 Alcatel Lucent Optical OFDM transmission having a variable transmission rate
EP2940934B8 (en) * 2014-04-28 2018-05-16 Alcatel Lucent Distribution point unit, and method and system for data transmission over a wired shared medium to a plurality of users

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479447A (en) * 1993-05-03 1995-12-26 The Board Of Trustees Of The Leland Stanford, Junior University Method and apparatus for adaptive, variable bandwidth, high-speed data transmission of a multicarrier signal over digital subscriber lines
IT1273793B (en) * 1994-02-22 1997-07-10 Italtel Spa A composite system multiplexing orthogonal frequency division (OFDM) for the transmission of data sequences
US5519731A (en) * 1994-04-14 1996-05-21 Amati Communications Corporation ADSL compatible discrete multi-tone apparatus for mitigation of T1 noise

Also Published As

Publication number Publication date
EP0906676A1 (en) 1999-04-07
NZ333199A (en) 2000-05-26
JP2000512450A (en) 2000-09-19
CZ288913B6 (en) 2001-09-12
HU0001983A3 (en) 2002-01-28
FI962362A0 (en) 1996-06-07
CA2257799A1 (en) 1997-12-18
HU0001983A2 (en) 2000-10-28
CZ399398A3 (en) 1999-08-11
PL182887B1 (en) 2002-03-29
AU2702397A (en) 1998-01-07
FI962362D0 (en)
AU724605B2 (en) 2000-09-28
PL330924A1 (en) 1999-06-07
WO1997048206A1 (en) 1997-12-18
IL127362D0 (en) 1999-10-28

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Legal Events

Date Code Title Description
B08F Application fees: dismissal - article 86 of industrial property law