EP2093776A2 - Radio base station and hybrid cable for a radio base station - Google Patents

Radio base station and hybrid cable for a radio base station Download PDF

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Publication number
EP2093776A2
EP2093776A2 EP09002654A EP09002654A EP2093776A2 EP 2093776 A2 EP2093776 A2 EP 2093776A2 EP 09002654 A EP09002654 A EP 09002654A EP 09002654 A EP09002654 A EP 09002654A EP 2093776 A2 EP2093776 A2 EP 2093776A2
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EP
European Patent Office
Prior art keywords
inner conductor
cable
data line
mobile radio
base station
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Legal status (The legal status 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 status listed.)
Granted
Application number
EP09002654A
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German (de)
French (fr)
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EP2093776B1 (en
EP2093776A3 (en
Inventor
Thomas Pistner
Frank Falke
Dirk Schnare
Uwe Lonitz
Karsten Gehrke
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Vodafone Holding GmbH
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Vodafone Holding GmbH
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Priority claimed from DE102008010929A external-priority patent/DE102008010929A1/en
Application filed by Vodafone Holding GmbH filed Critical Vodafone Holding GmbH
Publication of EP2093776A2 publication Critical patent/EP2093776A2/en
Publication of EP2093776A3 publication Critical patent/EP2093776A3/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1804—Construction of the space inside the hollow inner conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/22—Cables including at least one electrical conductor together with optical fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements

Definitions

  • the invention relates to cables for transmitting electrical and optical signals, in particular coaxial cables.
  • the invention relates to a hybrid cable.
  • the hybrid cable is particularly suitable for use in a mobile radio station.
  • RRH Remote Radio Head
  • the outdoor and weatherproof installation of power supply, transmitting and receiving module, power amplifier and filter is called at the antennas.
  • the communication with the base station is usually via a fiber optic connection.
  • RRH mobile radio systems with remote high-frequency transmitters is so far more expensive compared to conventionally constructed mobile radio systems, because a power supply line and a data line must be installed. The cost-effectiveness has only been given with larger cable lengths. However, an RRH mobile radio system has significant cost advantages over a conventionally constructed mobile radio system during operation.
  • cables are known in which several types of conductors are combined to reduce installation costs or when particular difficulties have to be overcome.
  • the hybrid cable is intended for use in high-frequency shielded rooms and combines electrically shielded DC cables with floating optical fibers in a cable.
  • a cable is known in which a power supply line, a data line and a control relief to a single cable are combined with a common protective jacket.
  • the cables known from the prior art are not suitable for facilitating the conversion of existing mobile radio stations to the modern RRH technology.
  • the invention proposes a hybrid cable.
  • the invention proposes a hybrid cable according to claim 1.
  • the hybrid cable according to the invention comprises a coaxial cable with an outer conductor and a hollow inner conductor which encloses an inner space.
  • the hybrid cable according to the invention is characterized in that a data line is arranged in the interior of the inner conductor.
  • the data line is designed as an optical and / or electrical data line.
  • a further object of the invention is to provide an RRH mobile radio system which is more economical than known RRH mobile radio systems.
  • a special feature of the invention is thus that the hybrid cable is used for power supply and data exchange.
  • the data source is designed as a base station.
  • a further object of the invention is to provide an RRH mobile radio system which is more economical than the known RRH mobile radio system.
  • a mobile station which is housed in a high building 101.
  • a mast 103 to which a plurality of antennas 104 are installed.
  • Radio frequency transmitter 105 is also referred to as Remote Radio Head (RRH) 105.
  • RRH Remote Radio Head
  • a power supply 106 of the system is arranged in the lower area of the building 101.
  • a so-called base station 107 with a radio server is accommodated as a data source.
  • the base station 107 is signal connected to the RRH 105 via a data line 108 for the purpose of data exchange.
  • data line 108 is an optical data cable for transmission of optical data.
  • a power line 109 continues to lead to the RRH 105.
  • the power line 109 is typically a 48 volt power supply.
  • a fuse box 110 is disposed between the power supply 106 and the RRH 105.
  • the mobile radio system can also be installed in a tower or on a high mast.
  • the high-frequency transmitter in the lower part of the building or at the foot of a mast on which the antennas 104 of the mobile system are located.
  • the high-frequency transmitter is connected to the antennas only via coaxial cable.
  • RRH mobile radio systems therefore require the installation of additional optical cables for the construction of new generation mobile radio systems.
  • the laying of a 48-volt power connector for feeding the antenna-near Remote Radio Heads is necessary.
  • the invention proposes to use the existing coaxial cable both in another way and additionally in a new way.
  • Fig. 2 shows a coaxial cable 201, as is known in the art. From inside to outside, the coaxial cable 201 has an inner conductor 202 made of copper, which is hollow and encloses an inner space. The inner conductor 202 is surrounded by a dielectric 203. The dielectric 203 is enclosed by an outer conductor 204, which is insulated from a protective jacket 205 and protected against external damage.
  • the high frequency cable connecting the radio frequency transmitter to the antennas has a hollow copper inner conductor from a diameter of 718 "(2.2 cm) .
  • the invention proposes laying the data line 108 in the hollow inner conductor 202 of the coaxial cable 201. This already As a result, antenna cable 201 laid in the mobile radio system is used as a conduit for laying the data line 108 required for the RRH 105.
  • This procedure for the conversion of already existing mobile radio stations to the new RRH technology has a number of advantages. This includes, in particular, a simplified installation and the resulting cost savings, because no new cable path has to be built. It is avoided, for example, that new wall penetrations must be created. Furthermore, the additional data line 108 does not need to be ringed. There are also no additional measures with respect to the fire protection necessary. Finally, the sensitive data lines 108 inside the coaxial cable 201 are very well protected against external influences, for example against attacks by rodents.
  • the coaxial cable 201 is additionally usable as a power cable 109 for the 48V power supply of the RRH 105 by connecting the inner conductor 202 and the outer conductor 204 to the respective terminals of the power supply 106 and the RRH 105.
  • Figure 4 illustrates how a data cable 108 is fed into a coaxial cable 201. Quite correspondingly, as in a conventional empty pipe installation, the data line 108 is included in the cavity of the inner conductor 202, for example with a pipe spiral 301.

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Waveguides (AREA)
  • Communication Cables (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

The hybrid cable is a co-axial cable and has an external conductor and a hollow internal conductor. It runs from the radio set to a mast (103) on the roof (102) of a building (101). It has a data line (108) in the interior cavity of the hollow inner conductor. The said data line may be intended to transmit optical and/or electrical data to an/or from a mobile radio installation with a remote radio head (105).

Description

Technisches GebietTechnical area

Die Erfindung befasst sich mit Kabeln zum Übertragen von elektrischen und optischen Signalen, insbesondere um Koaxialkabel. Die Erfindung betrifft ein Hybridkabel. Das Hybridkabel eignet sich insbesondere für den Einsatz in einer Mobilfunkstation.The invention relates to cables for transmitting electrical and optical signals, in particular coaxial cables. The invention relates to a hybrid cable. The hybrid cable is particularly suitable for use in a mobile radio station.

Hintergrund der ErfindungBackground of the invention

Gegenüber bislang verwendeten Mobilfunkstationen haben so genannte Remote Radio Head (RRH)-Stationen den Vorteil, dass eine niedrigere Sendeleistung benötigt wird, weil der Hochfrequenzsender viel näher an der Antenne angeordnet und deshalb nur eine kürzere Hochfrequenzleitung zur Antenne erforderlich ist. Dieser Umstand erhöht den Wirkungsgrad der Mobilfunkstation ganz erheblich. Darüber hinaus kann der Sendemast bei einer RRH-Station bis zu mehreren hundert Metern von der Basisstation entfernt aufgestellt werden.Compared to previously used mobile stations so-called Remote Radio Head (RRH) stations have the advantage that a lower transmission power is needed because the high-frequency transmitter is located much closer to the antenna and therefore only a shorter high-frequency line to the antenna is required. This circumstance increases the efficiency of the mobile station considerably. In addition, the transmitter pole of an RRH station can be located up to several hundred meters away from the base station.

Als Remote Radio Head wird im Mobilfunk die außentaugliche und wetterfeste Montage von Spannungsversorgung, Sende- und Empfangsbaugruppe, Endverstärker und Filter an den Antennen genannt. Die Kommunikation mit der Basisstation erfolgt meist über eine Glasfaserverbindung.As a remote radio head in mobile communications, the outdoor and weatherproof installation of power supply, transmitting and receiving module, power amplifier and filter is called at the antennas. The communication with the base station is usually via a fiber optic connection.

Der Aufbau von RRH-Mobilfunkanlagen mit abgesetzten Hochfrequenzsendern ist im Vergleich zu konventionell errichteten Mobilfunkanlagen bislang teurer, weil eine Stromversorgungsleitung und eine Datenleitung installiert werden müssen. Die Wirtschaftlichkeit ist bisher erst bei größeren Kabellängen gegeben. Eine RRH-Mobilfunkanlage hat gegenüber einer konventionell errichteten Mobilfunkanlage jedoch im laufenden Betrieb deutliche Kostenvorteile.The construction of RRH mobile radio systems with remote high-frequency transmitters is so far more expensive compared to conventionally constructed mobile radio systems, because a power supply line and a data line must be installed. The cost-effectiveness has only been given with larger cable lengths. However, an RRH mobile radio system has significant cost advantages over a conventionally constructed mobile radio system during operation.

Im Stand der Technik sind Kabel bekannt, in welchen mehrere Arten von Leitern kombiniert werden, um Installationskosten zu senken oder wenn besondere Schwierigkeiten zu überwinden sind.In the prior art, cables are known in which several types of conductors are combined to reduce installation costs or when particular difficulties have to be overcome.

Aus der DE 20 2007010626 U1 ist eine Daten-Energie-Hybridleitung bekannt. Die Hybridleitung ist für Anwendungen in hochfrequent abgeschirmten Räumen vorgesehen und kombiniert elektrisch abgeschirmte Gleichspannungsleitungen mit potenzialfreien Lichtwellenleitern in einem Kabel. Aus der US 2003/0121694 A1 ist ein Kabel bekannt, in welchem eine Stromversorgungsleitung, eine Datenleitung und eine Steuererleichterung zu einem einzigen Kabel mit einem gemeinsamen Schutzmantel kombiniert sind.From the DE 20 2007010626 U1 is a data-energy hybrid line known. The hybrid cable is intended for use in high-frequency shielded rooms and combines electrically shielded DC cables with floating optical fibers in a cable. From the US 2003/0121694 A1 For example, a cable is known in which a power supply line, a data line and a control relief to a single cable are combined with a common protective jacket.

Die aus dem Stand der Technik bekannten Kabel sind jedoch nicht dazu geeignet, um die Umrüstung von bestehenden Mobilfunkstationen auf die moderne RRH Technologie zu erleichtern.However, the cables known from the prior art are not suitable for facilitating the conversion of existing mobile radio stations to the modern RRH technology.

Darstellung der ErfindungPresentation of the invention

Hiervon ausgehend ist es eine Aufgabe der vorliegenden Erfindung, die Wirtschaftlichkeitsgrenze für RRH-Mobilfunkanlagen zu senken.On this basis, it is an object of the present invention to reduce the economic limit for RRH mobile radio systems.

Um diese Aufgabe zu lösen, schlägt die Erfindung ein Hybridkabel vor. Insbesondere schlägt die Erfindung ein Hybridkabel nach Anspruch 1 vor.To solve this problem, the invention proposes a hybrid cable. In particular, the invention proposes a hybrid cable according to claim 1.

Das erfindungsgemäße Hybridkabel umfasst ein Koaxialkabel mit einem Außenleiter und einem hohlen Innenleiter, der einen Innenraum umschließt. Das erfindungsgemäße Hybridkabel zeichnet sich dadurch aus, dass im Innenraum des Innenleiters eine Datenleitung angeordnet ist.The hybrid cable according to the invention comprises a coaxial cable with an outer conductor and a hollow inner conductor which encloses an inner space. The hybrid cable according to the invention is characterized in that a data line is arranged in the interior of the inner conductor.

Bei einem Ausführungsbeispiel der Erfindung ist die Datenleitung als optische und/oder elektrische Datenleitung ausgebildet.In one embodiment of the invention, the data line is designed as an optical and / or electrical data line.

Eine weitere Aufgabe der Erfindung ist es, eine RRH-Mobilfunkanlage zu schaffen, die gegenüber bekannten RRH-Mobilfunkanlagen wirtschaftlicher ist.A further object of the invention is to provide an RRH mobile radio system which is more economical than known RRH mobile radio systems.

Diese Aufgabe wird durch eine Mobilfunkanlage nach Anspruch 3 gelöst, insbesondere durch eine Mobilfunkanlage mit einem erfindungsgemäßen Hybridkabel.This object is achieved by a mobile radio system according to claim 3, in particular by a mobile radio system with a hybrid cable according to the invention.

Schließlich schlägt die Erfindung ein Verfahren zur Installation und Herstellung eines Hybridkabels vor. Das erfindungsgemäße Verfahren umfasst die folgenden Schritte:

  • Einführen einer Datenleitung in den Hohlraum eines hohlen Innenleiters eines Koaxialkabels und
  • Verbinden des Innenleiters und des Außenleiters mit einer Stromversorgung.
Finally, the invention proposes a method for installing and manufacturing a hybrid cable. The method according to the invention comprises the following steps:
  • Inserting a data line into the cavity of a hollow inner conductor of a coaxial cable and
  • Connecting the inner conductor and the outer conductor to a power supply.

Eine Besonderheit der Erfindung ist es somit, dass das Hybridkabel zur Stromversorgung und zum Datenaustausch dient.A special feature of the invention is thus that the hybrid cable is used for power supply and data exchange.

Weiterhin ist es eine Aufgabe der Erfindung, eine mögliche wirtschaftliche Umrüstung für Mobilfunkanlagen zu schaffen.Furthermore, it is an object of the invention to provide a possible economic conversion for mobile radio systems.

Um diese Aufgabe zu lösen, schlägt die Erfindung ein Verfahren vor zum Umrüsten einer Mobilfunkstation, die einen antennennahen Hochfrequenzsender und ein Koaxialkabel umfasst. Das Koaxialkabel weist einen hohlen Innenleiter auf und verbindet den Hochfrequenzsender mit einer Antenne. Das erfindungsgemäße Verfahren umfasst die folgenden Schritte:

  • Einziehen einer elektrischen oder optischen Datenleitung in den hohlen Innenleiter des Koaxialkabels zur Verbindung des antennennahen Hochfrequenzsenders mit einer Datenquelle;
  • Verbinden des Innenleiters und/oder des Außenleiters des Koaxialkabels mit einer Stromversorgung und
  • Verbinden des Innenleiters und/oder des Außenleiters mit dem antennennahen Hochfrequenzsender.
In order to achieve this object, the invention proposes a method for converting a mobile radio station comprising an antenna-near high-frequency transmitter and a coaxial cable. The coaxial cable has a hollow inner conductor and connects the radio frequency transmitter to an antenna. The method according to the invention comprises the following steps:
  • Drawing an electrical or optical data line into the hollow inner conductor of the coaxial cable for connecting the antenna-near high-frequency transmitter to a data source;
  • Connecting the inner conductor and / or the outer conductor of the coaxial cable with a power supply and
  • Connecting the inner conductor and / or the outer conductor with the near-antenna high-frequency transmitter.

In einer Ausführungsform der Erfindung ist die Datenquelle als Basisstation ausgebildet.In one embodiment of the invention, the data source is designed as a base station.

Eine weitere Aufgabe der Erfindung ist es, eine RRH-Mobilfunkanlage zu schaffen, die gegenüber bekannten RRH-Mobilfunkanlage wirtschaftlicher ist.A further object of the invention is to provide an RRH mobile radio system which is more economical than the known RRH mobile radio system.

Diese Aufgabe wird durch eine Mobilfunkstation nach Anspruch 8 gelöst, insbesondere durch eine Mobilfunkstation nach dem erfindungsgemäßen Verfahren.This object is achieved by a mobile radio station according to claim 8, in particular by a mobile radio station according to the inventive method.

Die zuvor genannten und weitere Vorteile, Besonderheiten und zweckmäßige Weiterbildungen der Erfindung werden auch anhand der Ausführungsbeisplele deutlich, die nachfolgend unter Bezugnahme auf die Figuren beschrieben werden.The above-mentioned and other advantages, features and expedient developments of the invention will become apparent from the Ausführungsbeisplele, which are described below with reference to the figures.

Kurze Beschreibung der FigurenBrief description of the figures

Von den Figuren zeigt:

Fig. 1
eine schematische Darstellung einer RRH-Mobilfunkanlage;
Fig. 2
eine schematische und perspektivische Querschnittsansicht eines erfindungsgemäßen Hybridkabels; und
Fig. 3
einen Verfahrensschritt zur Herstellung eines erfindungsgemäßen Hybridkabels in einer schematischen Darstellung.
From the figures shows:
Fig. 1
a schematic representation of a RRH mobile radio system;
Fig. 2
a schematic and perspective cross-sectional view of a hybrid cable according to the invention; and
Fig. 3
a method step for producing a hybrid cable according to the invention in a schematic representation.

Beschreibung eines Ausführungsbeispiels der ErfindungDescription of an embodiment of the invention

In Fig. 1 ist schematisch eine Mobilfunkanlage dargestellt, die in einem hohen Gebäude 101 untergebracht ist. Auf einem Dach 102 des Gebäudes 101 steht ein Mast 103, an welchem mehrere Antennen 104 installiert sind. In unmittelbarer Nachbarschaft der Antennen 104 ist ein Hochfrequenzsender 105 auf dem Mast 103 angeordnet. Der Hochfrequenzsender 105 wird auch als Remote Radio Head (RRH) 105 bezeichnet. Im unteren Bereich des Gebäudes 101, zum Beispiel im Keller oder im Erdgeschoss, ist eine Stromversorgung 106 der Anlage angeordnet. Neben der Stromversorgung 106 ist als Datenquelle eine so genannte Basisstation 107 mit einem Radioserver untergebracht. Die Basisstation 107 ist mit der RRH 105 über eine Datenleitung 108 zum Zweck des Datenaustausches signalmäßig verbunden. Typischerweise ist die Datenleitung 108 ein optisches Datenkabel zur Übertragung von optischen Daten. Von der Stromversorgung 106 führt weiterhin eine Stromleitung 109 zu der RRH 105. Bei der Stromleitung 109 handelt es sich typischerweise um einen 48-Volt-Stromanschluss. In herkömmlicher Weise ist zwischen der Stromversorgung 106 und der RRH 105 ein Sicherungskasten 110 angeordnet.In Fig. 1 schematically a mobile station is shown, which is housed in a high building 101. On a roof 102 of the building 101 is a mast 103 to which a plurality of antennas 104 are installed. In the immediate vicinity of the antennas 104, a high-frequency transmitter 105 is arranged on the mast 103. Radio frequency transmitter 105 is also referred to as Remote Radio Head (RRH) 105. In the lower area of the building 101, for example in the basement or on the ground floor, a power supply 106 of the system is arranged. In addition to the power supply 106, a so-called base station 107 with a radio server is accommodated as a data source. The base station 107 is signal connected to the RRH 105 via a data line 108 for the purpose of data exchange. Typically, data line 108 is an optical data cable for transmission of optical data. From the power supply 106, a power line 109 continues to lead to the RRH 105. The power line 109 is typically a 48 volt power supply. Conventionally, a fuse box 110 is disposed between the power supply 106 and the RRH 105.

Alternativ zu dem in Fig. 1 gezeigten Ausführungsbeispiel der Mobilfunkanlage kann die Mobilfunkanlage auch in einem Turm oder auf einem hohen Mast installiert sein.Alternatively to the in Fig. 1 shown embodiment of the mobile radio system, the mobile radio system can also be installed in a tower or on a high mast.

Im Unterschied zu der in Fig. 1 gezeigten Mobilfunkstation befindet sich bei herkömmlichen Mobilfunkanlagen, die nicht mit einem RRH 105 ausgerüstet sind, der Hochfrequenzsender im unteren Bereich des Gebäudes oder am Fuße eines Mastes, auf dem die Antennen 104 der Mobilfunkanlage angeordnet sind. Bei den herkömmlichen Mobilfunkanlagen ist der Hochfrequenzsender mit den Antennen nur über Koaxialkabel verbunden.Unlike the in Fig. 1 shown mobile station is located in conventional mobile stations that are not equipped with a RRH 105, the high-frequency transmitter in the lower part of the building or at the foot of a mast on which the antennas 104 of the mobile system are located. In the conventional mobile radio systems, the high-frequency transmitter is connected to the antennas only via coaxial cable.

Zusätzlich zu den bisher an Mobilfunkstandorten verlegten Koaxialkabeln ist deshalb bei RRH-Mobilfunkanlagen die Verlegung zusätzlicher optischer Kabel für die Errichtung von Mobilfunkanlagen der neuen Generation erforderlich. Außerdem ist das Verlegen eines 48-Volt-Stromanschlusses zur Speisung der antennennahen Remote Radio Heads notwendig.In addition to the coaxial cables laid to date on mobile radio sites, RRH mobile radio systems therefore require the installation of additional optical cables for the construction of new generation mobile radio systems. In addition, the laying of a 48-volt power connector for feeding the antenna-near Remote Radio Heads is necessary.

Beim Neubau oder der Modernisierung einer Mobilfunkanlage musste deshalb bisher eine separate Datenleitung sowie ein Kabel zur Stromversorgung der RRH verlegt werden. Das hat zur Folge, dass kostenintensive Arbeiten an den Kabelwegen durchzuführen sind, insbesondere in Bezug auf Brandschutz, eine Erweiterung der Wanddurchführung usw., so dass RRH-Anlagen heute erst bei größeren Kabellängen wirtschaftlich sind.For the construction or modernization of a mobile radio system, a separate data line and a cable for the power supply of the RRH had to be installed. As a result, costly work has to be carried out on the cable routes, in particular with regard to fire protection, an extension of the wall feedthrough, etc., so that today RRH systems are only economical with longer cable lengths.

An dieser Stelle setzt die Erfindung an, um Abhilfe zu schaffen. Die Erfindung schlägt vor, das vorhandene Koaxialkabel sowohl auf eine andere als auch zusätzlich dazu auf eine neue Art und Weise zu nutzen.At this point, the invention begins to remedy the situation. The invention proposes to use the existing coaxial cable both in another way and additionally in a new way.

Fig. 2 zeigt ein Koaxialkabel 201, wie es aus dem Stand der Technik bekannt ist. Von innen nach außen weist das Koaxialkabel 201 einen Innenleiter 202 aus Kupfer auf, der hohl ausgebildet ist und einen Innenraum umschließt. Der Innenleiter 202 ist von einem Dielektrikum 203 umgeben. Das Dielektrikum 203 wird von einem Außenleiter 204 umschlossen, der von einem Schutzmantel 205 isoliert und gegen äußere Beschädigungen geschützt ist. Fig. 2 shows a coaxial cable 201, as is known in the art. From inside to outside, the coaxial cable 201 has an inner conductor 202 made of copper, which is hollow and encloses an inner space. The inner conductor 202 is surrounded by a dielectric 203. The dielectric 203 is enclosed by an outer conductor 204, which is insulated from a protective jacket 205 and protected against external damage.

Bei herkömmlichen Mobilfunkanlagen besitzt das Hochfrequenzkabel, welches den Hochfrequenzsender mit den Antennen verbindet, ab einem Durchmesser von 718" (2,2cm) einen hohlen Kupferinnnenleiter. Die Erfindung schlägt vor, die Datenleitung 108 im hohlen Innenleiter 202 des Koaxialkabels 201 zu verlegen. Das bereits in der Mobilfunkanlage verlegte Antennenkabel 201 wird somit gewissermaßen als Leerrohr für das Verlegen der für den RRH 105 erforderlichen Datenleitung 108 benutzt.In conventional cellular systems, the high frequency cable connecting the radio frequency transmitter to the antennas has a hollow copper inner conductor from a diameter of 718 "(2.2 cm) .The invention proposes laying the data line 108 in the hollow inner conductor 202 of the coaxial cable 201. This already As a result, antenna cable 201 laid in the mobile radio system is used as a conduit for laying the data line 108 required for the RRH 105.

Diese Vorgehensweise bei der Umrüstung von bereits bestehenden Mobilfunkstationen auf die neue RRH-Tecihnologie weist eine Reihe von Vorteilen auf. Hierzu gehören insbesondere eine vereinfachte Installation und hierdurch ermöglichte Kosteneinsparungen, weil kein neuer Kabelweg gebaut werden muss. Es wird beispielsweise vermieden, dass neue Wanddurchführungen geschaffen werden müssen. Weiterhin muss die zusätzliche Datenleitung 108 nicht geschellt werden. Es sind auch keine zusätzlichen Maßnahmen in Bezug auf den Brandschutz notwendig. Schließlich sind die sensiblen Datenleitungen 108 im Inneren des Koaxialkabels 201 sehr gut gegen äußere Einwirkungen geschützt, beispielsweise auch gegen Angriffe von Nagetieren.This procedure for the conversion of already existing mobile radio stations to the new RRH technology has a number of advantages. This includes, in particular, a simplified installation and the resulting cost savings, because no new cable path has to be built. It is avoided, for example, that new wall penetrations must be created. Furthermore, the additional data line 108 does not need to be ringed. There are also no additional measures with respect to the fire protection necessary. Finally, the sensitive data lines 108 inside the coaxial cable 201 are very well protected against external influences, for example against attacks by rodents.

Das Koaxialkabel 201 ist darüber hinaus zusätzlich als Stromkabel 109 zur 48 V Stromversorgung des RRH 105 nutzbar, indem der Innenleiter 202 und der Außenleiter 204 an die entsprechenden Anschlüsse der Stromversorgung 106 und des RRH 105 angeschlossen werden.In addition, the coaxial cable 201 is additionally usable as a power cable 109 for the 48V power supply of the RRH 105 by connecting the inner conductor 202 and the outer conductor 204 to the respective terminals of the power supply 106 and the RRH 105.

In Fig. 3 ist veranschaulicht, wie in ein Koaxialkabel 201 ein Datenkabel 108 eingezogen wird. Ganz entsprechend wie bei einer herkömmlichen Leerrohrinstallation wird z.B. mit einer Rohrspirale 301 die Datenleitung 108 in den Hohlraum des Innenleiters 202 einbezogen.In Fig. 3 Figure 4 illustrates how a data cable 108 is fed into a coaxial cable 201. Quite correspondingly, as in a conventional empty pipe installation, the data line 108 is included in the cavity of the inner conductor 202, for example with a pipe spiral 301.

Durch die vorgeschlagene Nutzung des bereits installierten Koaxialkabels 201 können vorhandene Mobilfunkstationen wesentlich kostengünstiger auf die neue RRH-Technologie umgerüstet werden.By the proposed use of the already installed coaxial cable 201 existing mobile stations can be converted much cheaper to the new RRH technology.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

101101
Gebäudebuilding
102102
Dachtop, roof
103103
Mastmast
104104
Antennenantennas
105105
Remote Radio Head (RRH), HochfrequenzsenderRemote Radio Head (RRH), radio frequency transmitter
106106
Stromversorgungpower supply
107107
Datenquelle, BasisstationData source, base station
108108
Datenleitungdata line
109109
Stromleitungpower line
110110
Sicherungskastenfuse box
201201
Koaxialkabelcoaxial
202202
Innenleiterinner conductor
202202
hohler Innenleiterhollow inner conductor
203203
Dielektrikumdielectric
204204
Außenleiterouter conductor
205205
Schutzmantelmantle
301301
Rohrspiralepipe spiral

Claims (8)

Hybridkabel, das ein Koaxialkabel (201) mit einem Außenleiter (204) und einem hohlen Innenleiter (202) umfasst, der einen Innenraum umschließt,
dadurch gekennzeichnet,
dass im Innenraum des Innenleiters (202) eine Datenleitung (108) angeordnet ist.A hybrid cable comprising a coaxial cable (201) having an outer conductor (204) and a hollow inner conductor (202) enclosing an interior space,
characterized,
in that a data line (108) is arranged in the interior of the inner conductor (202). Hybridkabel nach Anspruch 1,
dadurch gekennzeichnet,
dass die Datenleitung (108) als optische und/oder elektrische Datenleitung ausgebildet ist.Hybrid cable according to claim 1,
characterized,
that the data line (108) is formed as an optical and / or electrical data line. Mobilfunkanlage mit einem Hybridkabel nach Anspruch 1 oder 2.Mobile radio system with a hybrid cable according to claim 1 or 2. Verfahren zur Installation und Herstellung eines Hybridkabels, wobei das Verfahren den Schritt umfasst: - Einführen einer optischen und/oder elektrischen Datenleitung (108) in den Hohlraum eines hohlen Innenleiters (202) eines Koaxialkabels (201). A method of installing and manufacturing a hybrid cable, the method comprising the step of: - Introducing an optical and / or electrical data line (108) in the cavity of a hollow inner conductor (202) of a coaxial cable (201). Verfahren nach Anspruch 4,
dadurch gekennzeichnet,
dass das Verfahren weiterhin den Schritt umfasst: - Verbinden des Innenleiters (202) und des Außenleiters (204) mit einer Stromversorgung (105). Method according to claim 4,
characterized,
that the method further comprises the step of: - Connecting the inner conductor (202) and the outer conductor (204) with a power supply (105). Verfahren zum Umrüsten einer Mobilfunkstation, die einen antennennahen Hochfrequenzsender und ein Koaxialkabel, das einen hohlen Innenleiter aufweist, umfasst, wobei das Verfahren die folgenden Schritte umfasst: - Einziehen einer elektrischen oder optischen Datenleitung (108) in den hohlen Innenleiter (202) des Koaxialkabels (201) zur Verbindung des antennennahen Hochfrequenzsenders (105) mit einer Datenquelle; - Verbinden eines Innenleiters (202) und/oder eine Außenleiters (204) des Koaxialkabels (201) mit einer Stromversorgung (106) und - Verbinden des Innenleiters (202) und/oder des Außenleiters (204) mit dem antennennahen Hochfrequenzsender (105). A method of retooling a mobile station comprising an antenna-near radio frequency transmitter and a coaxial cable having a hollow inner conductor, the method comprising the steps of: Inserting an electrical or optical data line (108) into the hollow inner conductor (202) of the coaxial cable (201) for connecting the antenna-near high-frequency transmitter (105) to a data source; - Connecting an inner conductor (202) and / or an outer conductor (204) of the coaxial cable (201) with a power supply (106) and - Connecting the inner conductor (202) and / or the outer conductor (204) with the near-antenna high-frequency transmitter (105). Verfahren nach Anspruch 6,
dadurch gekennzeichnet,
dass die Datenquelle eine Basisstation (107) ist.Method according to claim 6,
characterized,
that the data source is a base station (107). Mobilfunkstation, hergestellt nach einem Verfahren nach Anspruch 6.Mobile radio station, produced by a method according to claim 6.
EP09002654.3A 2008-02-25 2009-02-25 Radio base station and hybrid cable for a radio base station Active EP2093776B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008010929A DE102008010929A1 (en) 2008-02-25 2008-02-25 Mobile station and hybrid cable for a mobile station

Publications (3)

Publication Number Publication Date
EP2093776A2 true EP2093776A2 (en) 2009-08-26
EP2093776A3 EP2093776A3 (en) 2013-05-15
EP2093776B1 EP2093776B1 (en) 2020-01-15

Family

ID=39678393

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (3)

Country Link
EP (1) EP2093776B1 (en)
DE (2) DE102008064624A1 (en)
ZA (1) ZA200901312B (en)

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Also Published As

Publication number Publication date
ZA200901312B (en) 2010-02-24
DE202008005448U1 (en) 2008-08-07
DE102008064624A1 (en) 2009-10-01
EP2093776B1 (en) 2020-01-15
EP2093776A3 (en) 2013-05-15

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