HUP0001983A2 - Method and apparatus for implementing a wire transmission connection - Google Patents

Method and apparatus for implementing a wire transmission connection

Info

Publication number
HUP0001983A2
HUP0001983A2 HU0001983A HUP0001983A HUP0001983A2 HU P0001983 A2 HUP0001983 A2 HU P0001983A2 HU 0001983 A HU0001983 A HU 0001983A HU P0001983 A HUP0001983 A HU P0001983A HU P0001983 A2 HUP0001983 A2 HU P0001983A2
Authority
HU
Hungary
Prior art keywords
carriers
modulators
transmission connection
transmission
modulator
Prior art date
Application number
HU0001983A
Other languages
Hungarian (hu)
Inventor
Jari Lindholm
Antii Tommiska
Original Assignee
Nokia Networks 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
Application filed by Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of HUP0001983A2 publication Critical patent/HUP0001983A2/en
Publication of HUP0001983A3 publication Critical patent/HUP0001983A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing 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 or in a tape-recorder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2215/00—Reducing interference at the transmission system level
    • H04B2215/064—Reduction of clock or synthesizer reference frequency harmonics
    • H04B2215/068—Reduction of clock or synthesizer reference frequency harmonics by avoiding a reception frequency range

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Communication Cables (AREA)
  • Communication Control (AREA)
  • Telephonic Communication Services (AREA)
  • Transmitters (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

A találmány tárgya eljárás és berendezés kétirányú vezetékes átviteliösszeköttetés megvalósítására. Az eljárás során az átviteliösszeköttetést elektromos formában valósítják meg oly módon, hogy azelektromos vezeték sávszélességéből különböző frekvenciákat foglalnakle az ellentétes irányú átvitelek számára. Az elektromos vezetéksávszélességét nemzetközi amatőr rádiósávok (AB1..AB6) által határoltalsávokra osztják, és az átviteli összeköttetést ezen alsávok közüllegalább néhányban úgy valósítják meg, hogy az összes igénybevettalsávhoz külön modulátort rendelnek, amely modulátorok vivőket(C1...C6) állítanak elő. Az adó oldali modulátoroknak továbbítandóbitsorozat bitjeit úgy választják szét, hogy minden egyes vivőt(C1...C6) néhány bit moduláljon, továbbá a vivők (C1...C6) számára amegfelelő alsávban a többi vivőtől függetlenül tudjanak lefoglalni egyfrekvenciasávot. A berendezés a különböző átviteli irányokbankülönböző frekvenciájú vivőket (C1...C6) használ, továbbá mindenátviteli irányban tartalmaz a bejövő bitsorozat átalakítására szolgálójelformálóegységet és az átalakított jelek segítségével a vivőket(C1.. C6) moduláló modulátor egységet. A modulátor egység n darabpárhuzamosan kapcsolt modulátort tartalmaz, amely modulátorokfrekvenciája hat vivőt (C1...C6) határoz meg, és az átviteli vonalfrekvenciatartományából minden vivőhöz (C1...C6) hozzá van rendelveegy olyan alsáv, amely legalább az egyik szélén határos egy nemzetköziamatőr rádiósávval (AB1...AB6). ÓThe subject of the invention is a method and apparatus for implementing a two-way wire transmission connection. During the process, the transmission connection is implemented in electrical form in such a way that different frequencies are reserved from the bandwidth of the electrical line for transmissions in the opposite direction. The bandwidth of the power line is divided into border protection bands by international amateur radio bands (AB1..AB6), and the transmission connection is implemented in at least some of these subbands by assigning separate modulators to all used subbands, which modulators produce carriers (C1...C6). The bits of the bit sequence to be transmitted to the modulators on the transmitting side are separated so that each carrier (C1...C6) is modulated by a few bits, and a single frequency band can be reserved for the carriers (C1...C6) in the corresponding subband independently of the other carriers. The equipment uses carriers of different frequencies (C1...C6) in the different transmission directions, and in each transmission direction it contains a signal shaping unit for converting the incoming bit sequence and a modulator unit that modulates the carriers (C1.. C6) using the converted signals. The modulator unit contains n parallel-connected modulators, the modulator frequency of which determines six carriers (C1...C6), and each carrier (C1...C6) of the transmission line frequency range is assigned a subband that borders on at least one edge of an international amateur with radio band (AB1...AB6). HE

HU0001983A 1996-06-07 1997-05-09 Method and apparatus for implementing a wire transmission connection HUP0001983A3 (en)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
HUP0001983A2 true HUP0001983A2 (en) 2000-10-28
HUP0001983A3 HUP0001983A3 (en) 2002-01-28

Family

ID=8546156

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0001983A HUP0001983A3 (en) 1996-06-07 1997-05-09 Method and apparatus for implementing a wire transmission connection

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) HUP0001983A3 (en)
IL (1) IL127362A0 (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
AU7386598A (en) * 1997-05-15 1998-12-08 Spectraplex, Inc. Method and means for increasing throughput in a carrier
FI972346A (en) 1997-06-02 1998-12-03 Nokia Telecommunications Oy Method and apparatus for making transmission connection
AT407684B (en) 1997-12-23 2001-05-25 Ericsson Austria Ag FILTER ARRANGEMENT
FI105973B (en) * 1998-11-19 2000-10-31 Tellabs Oy A method for determining the frequency bandwidth of modems employing a multicarrier system and a system employing the method
DE19926699C2 (en) 1999-06-11 2003-10-30 Vacuumschmelze Gmbh High-pass branch of 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 ORTHOGONAL FREQUENCY DIVISION MULTIPLATION COMPOSITE SYSTEM (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
AU724605B2 (en) 2000-09-28
PL330924A1 (en) 1999-06-07
BR9709664A (en) 2000-05-02
CZ288913B6 (en) 2001-09-12
AU2702397A (en) 1998-01-07
WO1997048206A1 (en) 1997-12-18
NZ333199A (en) 2000-05-26
PL182887B1 (en) 2002-03-29
CA2257799A1 (en) 1997-12-18
CZ399398A3 (en) 1999-08-11
EP0906676A1 (en) 1999-04-07
IL127362A0 (en) 1999-10-28
FI962362A0 (en) 1996-06-07
JP2000512450A (en) 2000-09-19
HUP0001983A3 (en) 2002-01-28

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