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FI105732B - Radiokommunikationssystem förverkligat med överdragsstationer försedda med reversering av frekvenser - Google Patents

Radiokommunikationssystem förverkligat med överdragsstationer försedda med reversering av frekvenser Download PDF

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Publication number
FI105732B
FI105732B FI941366A FI941366A FI105732B FI 105732 B FI105732 B FI 105732B FI 941366 A FI941366 A FI 941366A FI 941366 A FI941366 A FI 941366A FI 105732 B FI105732 B FI 105732B
Authority
FI
Finland
Prior art keywords
base station
station
repeater
radio
radio signals
Prior art date
Application number
FI941366A
Other languages
English (en)
Finnish (fi)
Other versions
FI941366A0 (sv
FI941366L (sv
Inventor
Gerard Marque-Pucheu
Original Assignee
Nortel Matra Cellular Sca
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9445398&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI105732(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nortel Matra Cellular Sca filed Critical Nortel Matra Cellular Sca
Publication of FI941366A0 publication Critical patent/FI941366A0/sv
Publication of FI941366L publication Critical patent/FI941366L/sv
Application granted granted Critical
Publication of FI105732B publication Critical patent/FI105732B/sv

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radio Transmission System (AREA)

Claims (5)

1. Förfarande för förmedling av digitala signaler per radio över ett pä förhand bestämt frekvensband mellan en basstation (13;23) och mobila stationer (6), i 5 vilket förfarande ätminstone en överdragsstation (14;24) används för mottagning av radiosignaler utsända av basstationen (13;23) och för äterutsändning av radiosignaler tili de mobila stationema (6) pä §amma frekvensband, k ä n -netecknat därav, att ett spektrum av de av basstationen (13;23) tili över-dragsstationen (14;24) utsända radiosignalerna reverseras i förhällande tili ett 10 spektrum av de av överdragsstationen (14;24) tili de mobila stationema (6) äterutsända radiosignalerna.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att reversering-en av frekvenser i överdragsstationen (14;24) har utförts med en transpositions- 15 anordning för radiofrekvenser utan regenerering av den digitala signalen.
3. Förfarande enligt patentkravet 1, kännetecknat därav, att innan signalen moduleras i basstationen (13) för sändning utsätts nämnda signal för en logisk transformering som efter modulering med en offset-frekvens motsvarar 20 reverseringen av frekvenserna av radiosignalen.
4. Överdragsstation, som omfattar en första sändnings- och mottagningsanordning (8) för kommunikation med en basstation (13;23) av ett radiokommunikationsnät, en andra sändnings- och mottagningsanordning (9,10) för kommunikation med 25 mobila stationer (6), en första linje (11 ;21) för behandling av radiosignalerna som mottagits av den första sändnings- och mottagningsanordningen före äterutsändning med den andra sändnings- och mottagningsanordningen och en andra linje (12) för behandling av radiosignalerna som mottagits av den andra sändnings- och mottagningsanordningen före äterutsändning med den första sänd-30 nings- och mottagningsanordningen, kännetecknad därav, att nämnda första linje (11 ;21) omfattar ätminstone en supradyne-transpositionskrets (28,29; 28a,29a) för reversering av frekvenserna av radiosignalen. 11
5.Radiotelefonnät, somomfattar ätminstone en telefonväxel (1), till telefonväxeln • (1) kopplade basstationer (3,13,23) för bildande av en digital radiotelefongräns-yta och överdragsstationer (14,24) för mottagning av radiosignaler utsända av ätminstone en basstation (13,23) och för äterutsändning av radiosignaler pä 5 samma frekvensband till mobila stationer (6), kännetecknat därav, att basstationen (13,23) och överdragsstationen (14,24) fungerar pä sädant sätt, att ett spektrum av den av basstationen (13,23) utsända och av överdragsstationen (14,24) mottagna radiosignalen reverseras i förhällande tili ett spektrum av de av överdragsstationen (14,24) tili de mobila stationerna (6) äterutsända radiosigna-10 lerna. • ·
FI941366A 1993-03-26 1994-03-24 Radiokommunikationssystem förverkligat med överdragsstationer försedda med reversering av frekvenser FI105732B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9303528A FR2703199B1 (fr) 1993-03-26 1993-03-26 Procédé de transmission radio-électrique utilisant des stations répétrices à retournement de spectre.
FR9303528 1993-03-26

Publications (3)

Publication Number Publication Date
FI941366A0 FI941366A0 (sv) 1994-03-24
FI941366L FI941366L (sv) 1994-09-27
FI105732B true FI105732B (sv) 2000-09-29

Family

ID=9445398

Family Applications (1)

Application Number Title Priority Date Filing Date
FI941366A FI105732B (sv) 1993-03-26 1994-03-24 Radiokommunikationssystem förverkligat med överdragsstationer försedda med reversering av frekvenser

Country Status (9)

Country Link
US (1) US5509028A (sv)
EP (1) EP0617524B1 (sv)
JP (1) JPH07111485A (sv)
AT (1) ATE179559T1 (sv)
AU (1) AU671712B2 (sv)
CA (1) CA2118633A1 (sv)
DE (1) DE69418087T2 (sv)
FI (1) FI105732B (sv)
FR (1) FR2703199B1 (sv)

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Also Published As

Publication number Publication date
EP0617524A1 (fr) 1994-09-28
DE69418087D1 (de) 1999-06-02
FR2703199A1 (fr) 1994-09-30
FR2703199B1 (fr) 1995-06-02
US5509028A (en) 1996-04-16
CA2118633A1 (en) 1994-09-27
AU671712B2 (en) 1996-09-05
EP0617524B1 (fr) 1999-04-28
FI941366A0 (sv) 1994-03-24
JPH07111485A (ja) 1995-04-25
FI941366L (sv) 1994-09-27
DE69418087T2 (de) 1999-11-25
AU5904794A (en) 1994-09-29
ATE179559T1 (de) 1999-05-15

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