EP2093847A2 - Adapter for a coaxial cable - Google Patents

Adapter for a coaxial cable Download PDF

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Publication number
EP2093847A2
EP2093847A2 EP09002655A EP09002655A EP2093847A2 EP 2093847 A2 EP2093847 A2 EP 2093847A2 EP 09002655 A EP09002655 A EP 09002655A EP 09002655 A EP09002655 A EP 09002655A EP 2093847 A2 EP2093847 A2 EP 2093847A2
Authority
EP
European Patent Office
Prior art keywords
cable
adapter
coaxial cable
mobile radio
mobile
Prior art date
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
EP09002655A
Other languages
German (de)
French (fr)
Other versions
EP2093847B1 (en
EP2093847A3 (en
Inventor
Dirk Schnare
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Vodafone Holding GmbH
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Vodafone Holding GmbH
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Publication date
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Publication of EP2093847A2 publication Critical patent/EP2093847A2/en
Publication of EP2093847A3 publication Critical patent/EP2093847A3/en
Application granted granted Critical
Publication of EP2093847B1 publication Critical patent/EP2093847B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/56—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency specially adapted to a specific shape of cables, e.g. corrugated cables, twisted pair cables, cables with two screens or hollow cables
    • H01R24/568—Twisted pair cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/54—Intermediate parts, e.g. adapters, splitters or elbows
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00—Two poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
    • H01R27/02—Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more dissimilar counterparts

Definitions

  • the invention relates to a mobile radio station which is equipped with adapters for connecting a multi-core cable to a coaxial cable.
  • the invention further relates to a method for equipping the mobile station with the adapters.
  • 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 terms mobile station and mobile station are used synonymously.
  • the method according to the invention has the advantage that it enables the cost-effective conversion of existing mobile radio systems to modern RRH technology.
  • the invention proposes a mobile station, which is designed according to the RRH technology.
  • the mobile radio station according to the invention is equipped with an arrangement with at least two adapters for connecting a multi-core cable to a coaxial cable.
  • the adapters are connected to one another via the coaxial cable.
  • the coaxial cable is a supply cable of the mobile radio station.
  • the mobile radio station according to the invention has the advantage that it can be inexpensively constructed on the basis of an existing mobile radio station using conventional technology.
  • a conventionally constructed mobile radio antenna system is shown. This does not necessarily require all outlined components to be used.
  • On a mast 101 a number of transmitting and receiving antennas are mounted.
  • the transmitting antenna 102 is connected via a so-called jumper cable 104a to a feeder cable 105a (feeder cable) for the radio-frequency signal to be radiated.
  • Feeder Cable 105a Is typically a 7/8 "(2.2 cm), 11 ⁇ 4" (3.18 cm), 1 5/8 "(4.13 cm), or 21 ⁇ 4" coaxial cable (FIG. 72 cm), which has a hollow inner conductor made of copper.
  • the connection between the feeder cable 105a and the jumper cable 104a is made with a 7/16 "or N-type connector 106a, connected to the lower end of the feeder cable 105a is another jumper cable 104b, by means of which a connection to a base station 107 is made the jumper cable 104b and the feeder cable 105a
  • a 7/16 "connector 106b is disposed between the base station 107 and the jumper cable 104b is an overvoltage protector 108 with a ⁇ / 4 short which protects the antenna system from overvoltages.
  • the signal connection between the base station 107 and the receiving antenna 103 is constructed in quite the same manner as between the transmitting antenna 102 and the base station 107, so that the base station 107 represents the data source of the mobile station.
  • a jumper cable 104c leads from the receiving antenna 103 to an antenna preamplifier 109.
  • the antenna preamplifier 109 is connected to a power cable 105b by a connector 106c.
  • the feeder cable 105b is connected at its lower end to the base station 107 with a jumper cable 104d.
  • a surge arrester 110 with gas discharge arrester is arranged between the base station 107 and the jumper cable 104d.
  • a 7116 "or an N-type connector is arranged between the jumper cable 104d and the feeder cable 105b.
  • the high-frequency transmitter in the base station 107 is thus connected in conventional mobile radio systems only via a coaxial cable 105a or 105b with an associated antenna.
  • Mobile radio systems according to the modern RRH technology require a larger number of connections between the base station and the antenna, as will be explained below.
  • a mobile station according to the modern RRH technology is shown, which is housed in a high building 201.
  • a mast 203 On a roof 202 of the building 201 is a mast 203, on which a plurality of antennas 204 are installed.
  • a high-frequency transmitter 205 is arranged on the mast 203.
  • Radio frequency transmitter 205 is also referred to as Remote Radio Head (RRH) 205.
  • RRH Remote Radio Head
  • a power supply 206 of the system is arranged in the lower area of the building 201.
  • a so-called base station 207 In addition to the power supply 206 is as a data source, a so-called base station 207 with housed a radio server.
  • the base station 207 is signal connected to the RRH 205 via a data line 208 for the purpose of data exchange.
  • data line 208 is an optical data cable for transmission of optical data.
  • a power line 209 continues to lead to the RRH 205.
  • the power line 209 is typically a 48 volt power supply.
  • a fuse box 210 is disposed between the power supply 206 and the RRH 205.
  • the mobile radio system can also be installed in a tower or on a high mast.
  • Fig. 3A schematically shows an adapter 301 according to the invention, which is designed as a plug.
  • the adapter 301 has a plug housing 302 made of metal, which carries a cap nut 303.
  • a first core 304 of a two-wire line 305 is connected to the connector housing 302 .
  • a second wire 306 is connected to a central contact pin 307.
  • the contact pin 307 and the second wire 306 are electrically insulated in the housing 302.
  • the adapter 301 corresponds in its dimensions to a 7/16 "or N-type connector and allows connection to a 7/16" coaxial connector. In this way, the adapter 301 allows the connection of the two-wire cable 305 to a coaxial cable.
  • the dimensions 7116 are chosen in the context of the present invention only as an example for other dimensions, because coaxial sockets or plugs in mobile radio systems usually have this diameter., Of course, the invention is not limited to this diameter.
  • Fig. 3B schematically shows an adapter 311 according to the invention, which is designed as a socket.
  • the adapter 311 has a housing 312 made of metal, which is provided with an external thread 313.
  • a first core 314 of a two-wire line 315 is connected to the housing 312.
  • a second wire 316 is connected to a centrally located contact socket 317.
  • the Contact socket 317 and the second wire 306 are electrically insulated in the housing 312.
  • Fig. 4 shows an arrangement with two adapters 301, which are mounted on an already existing feed cable 105 in a Mobiffunkstrom.
  • the feeder cable 105 is provided at its ends with a connection socket 401, respectively.
  • the connection region of the connection socket 401 is constructed with a housing 402 and a middle contact socket 403 completely corresponding to the connection region of the socket 311.
  • an adapter 301 designed as a plug is inserted and fastened by tightening the union nuts 303 on an external thread of the connection socket 401.
  • the two-wire cables 305 are connected on one side to the power supply 206 and on the other side to the RRH 205. Between the two two-wire cables 305 extends the feed cable 105. This means that the 48V power supply inside the mobile station is fed through the no longer used as a high-frequency cable feed cable 105, wherein the two wires of the two-wire cable with an inner conductor 403 and an outer conductor 404 of the feeder cable 105 are connected.
  • the metal surfaces exposed on the adapters 301 can be insulated with a shrink tubing or self-fusing bitumen tape.
  • the adapter 311 is used. The basic operation is the same in both embodiments.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Cable Accessories (AREA)

Abstract

The adapter (301) is formed as connector with a medium contact pin (307). The adapter is also formed as socket with a medium contact socket. The multiple cables are connected with a current supply of a mobile station and also connected with a remote radio head. An independent claim is also included for a mobile station formed with the remote radio head technology.

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Mobilfunkstation, die mit Adaptern zum Anschluss eines mehradrigen Kabels an ein Koaxialkabel ausgestattet ist. Die Erfindung betrifft weiterhin ein Verfahren zur Ausrüstung der Mobilfunkstation mit den Adaptern.The invention relates to a mobile radio station which is equipped with adapters for connecting a multi-core cable to a coaxial cable. The invention further relates to a method for equipping the mobile station with the adapters.

Hintergrund der ErfindungBackground of the invention

Gegenüber bislang verwendeten Mobiffunkstationen 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 Mobiffunkstationen so-called Remote Radio Head (RRH) stations have the advantage that a lower transmission power is needed because the high-frequency transmitter arranged 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. Im Folgenden werden die Begriffe Mobilfunkstation und Mobilfunkanlage synonym benutzt.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. In the following, the terms mobile station and mobile station are used synonymously.

Darstellung der ErfindungPresentation of the invention

Hiervon ausgehend ist es eine Aufgabe der vorliegenden Erfindung, eine mögliche wirtschaftliche Umrüstung für Mobilfunkanlagen zu schaffen.On this basis, it is an object of the present invention to provide a possible economic conversion for mobile radio systems.

Um diese Aufgabe zu lösen, schlägt die Erfindung ein Verfahren zum Umrüsten einer Mobilfunkstation vor, in der ein Koaxialkabel zur Verbindung eines Hochfrequenzsenders mit einer Antenne vorhanden ist. Das Verfahren umfasst folgende Schritte:

  • Montieren von zwei Adaptern an das Koaxialkabel, das jeweils eine Anschlussbuchse an seinen beiden Enden aufweist;
  • Anschließen eines zweiadrigen Kabels an eine Stromversorgung der Mobilfunkstation und eines anderen zweiadrigen Kabels an einen Remote Radio Head der Mobilfunkstation;
  • Montieren des Koaxialkabels zwischen das zweiadrige Kabel zur Stromversorgung und das zweiadrige Kabel zur Remote Radio Head und
  • Isolieren der Adapter.
To achieve this object, the invention proposes a method for converting a mobile station, in which a coaxial cable for connecting a high-frequency transmitter is provided with an antenna. The method comprises the following steps:
  • Mounting two adapters to the coaxial cable, each having a connector at its both ends;
  • Connecting a two-wire cable to a power supply of the mobile station and another two-wire cable to a remote radio head of the mobile station;
  • Mount the coaxial cable between the two - core cable for power and the two - core cable to the remote radio head and
  • Isolate the adapters.

Das erfindungsgemäße Verfahren hat den Vorteil, dass es die kostengünstige Umrüstung von vorhandenen Mobilfunkanlagen auf moderne RRH-Technologie ermöglicht.The method according to the invention has the advantage that it enables the cost-effective conversion of existing mobile radio systems to modern RRH technology.

Weiterhin schlägt die Erfindung eine Mobilfunkstation vor, die gemäß der RRH-Technologie ausgebildet ist. Die erfindungsgemäße Mobilfunkstation ist mit einer Anordnung mit mindestens zwei Adaptern zum Anschluss eines mehradrigen Kabels an ein Koaxialkabel ausgestattet.Furthermore, the invention proposes a mobile station, which is designed according to the RRH technology. The mobile radio station according to the invention is equipped with an arrangement with at least two adapters for connecting a multi-core cable to a coaxial cable.

In einer zweckmäßigen Weiterbildung der erfindungsgemäßen Mobilfunkstation sind die Adapter über das Koaxialkabel miteinander verbunden sind.In an expedient development of the mobile radio station according to the invention, the adapters are connected to one another via the coaxial cable.

In einer anderen Weiterbildung der erfindungsgemäßen Mobilfunkstation ist das Koaxialkabel ein Speisekabel der Mobilfunkstation.In another development of the mobile radio station according to the invention, the coaxial cable is a supply cable of the mobile radio station.

Die erfindungsgemäße Mobilfunkstation hat den Vorteil, dass sie ausgehend von einer vorhandenen Mobilfunkstation mit herkömmlicher Technik kostengünstig zu errichten ist.The mobile radio station according to the invention has the advantage that it can be inexpensively constructed on the basis of an existing mobile radio station using conventional technology.

Die zuvor genannten und weitere Vorteile, Besonderheiten und zweckmäßige Weiterbildungen der Erfindung werden auch anhand der Ausführungsbeispiele deutlich, die nachfolgend unter Bezugnahme auf die Figuren beschrieben werden.The above and other advantages, features and expedient developments of the invention will become apparent from the embodiments, 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 herkömmlichen Mobilfunkantennenanlage;
Fig. 2
eine schematische Darstellung einer RRH-Mobilfunkanlage;
Fig. 3A und
3B eine schematische Darstellung eines erfindungsgemäßen Adapters, teilweise im Querschnitt; und
Fig. 4
eine schematische Darstellung der Erfindung im Einsatz in einer Mobilfunkanlage.
From the figures shows:
Fig. 1
a schematic representation of a conventional mobile radio antenna system;
Fig. 2
a schematic representation of a RRH mobile radio system;
Fig. 3A and
3B is a schematic representation of an adapter according to the invention, partly in cross section; and
Fig. 4
a schematic representation of the invention in use in a mobile communication system.

Beschreibung eines Ausführungsbeispiels der ErfindungDescription of an embodiment of the invention

In der Fig. 1 ist schematisch eine konventionell aufgebaute Mobilfunkantennenanlage dargestellt. Hierbei müssen nicht notwendigerweise alle skizzierten Komponenten zum Einsatz kommen. Auf einem Mast 101 sind eine Anzahl von Sende- und Empfangsantennen montiert. In Fig. 1 sind beispielhaft und stellvertretend für alle montierten Antennen eine Sendeantenne 102 und eine Empfangsantenne 103 gezeigt. Die Sendeantenne 102 ist über ein so genanntes Jumperkabel 104a mit einem Speisekabel 105a (englisch: Feeder Cable) für das abzustrahlende Hochfrequenzssignal verbunden. Das Speisekabel 105a Ist typischerweise ein Koaxialkabel mit einem Durchmesser von 7/8" (2,2 cm), 1 ¼" (3,18 cm), 1 5/8" (4,13 cm) oder 2 ¼" (5,72 cm), das einen hohlen Innenleiter aus Kupfer aufweist. Die Verbindung zwischen dem Speisekabel 105a und dem Jumperkabel 104a ist mit einer 7/16" oder einer N-Steckverbindung 106a hergestellt. Am unteren Ende des Speisekabels 105a ist ein weiteres Jumperkabel 104b angeschlossen, mittels dessen eine Verbindung zu einer Basisstation 107 hergestellt ist. Zwischen dem Jumperkabel 104b und dem Speisekabel 105a ist eine 7/16" Steckverbindung 106b angeordnet. Zwischen der Basisstation 107 und dem Jumperkabel 104b ist ein Überspannungsschutz 108 mit λ/4 Kurzschluss angeordnet, der die Antennenanlage vor Überspannungen schützt.In the Fig. 1 schematically a conventionally constructed mobile radio antenna system is shown. This does not necessarily require all outlined components to be used. On a mast 101 a number of transmitting and receiving antennas are mounted. In Fig. 1 are exemplary and representative of all mounted antennas, a transmitting antenna 102 and a receiving antenna 103 shown. The transmitting antenna 102 is connected via a so-called jumper cable 104a to a feeder cable 105a (feeder cable) for the radio-frequency signal to be radiated. Feeder Cable 105a Is typically a 7/8 "(2.2 cm), 1¼" (3.18 cm), 1 5/8 "(4.13 cm), or 2¼" coaxial cable (FIG. 72 cm), which has a hollow inner conductor made of copper. The connection between the feeder cable 105a and the jumper cable 104a is made with a 7/16 "or N-type connector 106a, connected to the lower end of the feeder cable 105a is another jumper cable 104b, by means of which a connection to a base station 107 is made the jumper cable 104b and the feeder cable 105a A 7/16 "connector 106b is disposed between the base station 107 and the jumper cable 104b is an overvoltage protector 108 with a λ / 4 short which protects the antenna system from overvoltages.

Die signalmäßige Verbindung zwischen der Basisstation 107 und der Empfangsantenne 103 ist in ganz entsprechender Weise wie zwischen der Sendeantenne 102 und der Basisstation 107 aufgebaut, sodass die Basisstation 107 die Datenquelle der Mobilfunkstation darstellt. Ein Jumperkabel 104c führt von der Empfangsantenne 103 zu einem Antennenvorverstärker 109. Der Antennenvorverstärker 109 ist mit einer Steckverbindung 106c an ein Speisekabel 105b angeschlossen. Das Speisekabel 105b ist an seinem unteren Ende mit einem Jumperkabel 104d mit der Basisstation 107 verbunden. Zwischen der Basisstation 107 und dem Jumperkabel 104d ist ein Überspannungsableiter 110 mit Gasentladungsableiter angeordnet. Zwischen dem Jumperkabel 104d und dem Speisekabel 105b ist eine 7116" bzw. eine N-Steckverbindung angeordnet.The signal connection between the base station 107 and the receiving antenna 103 is constructed in quite the same manner as between the transmitting antenna 102 and the base station 107, so that the base station 107 represents the data source of the mobile station. A jumper cable 104c leads from the receiving antenna 103 to an antenna preamplifier 109. The antenna preamplifier 109 is connected to a power cable 105b by a connector 106c. The feeder cable 105b is connected at its lower end to the base station 107 with a jumper cable 104d. Between the base station 107 and the jumper cable 104d, a surge arrester 110 with gas discharge arrester is arranged. Between the jumper cable 104d and the feeder cable 105b, a 7116 "or an N-type connector is arranged.

Der Hochfrequenzsender in der Basisstation 107 ist bei herkömmlichen Mobilfunkanlagen somit nur über ein Koaxialkabel 105a oder 105b mit einer zugeordneten Antenne verbunden. Bei Mobilfunkanlagen gemäß der modernen RRH Technologie ist eine größere Anzahl von Verbindungen zwischen der Basisstation und der Antenne notwendig, wie im Folgenden ausgeführt wird.The high-frequency transmitter in the base station 107 is thus connected in conventional mobile radio systems only via a coaxial cable 105a or 105b with an associated antenna. Mobile radio systems according to the modern RRH technology require a larger number of connections between the base station and the antenna, as will be explained below.

In Fig. 2 ist schematisch eine Mobilfunkanlage gemäß der modernen RRH-Technologie dargestellt, die in einem hohen Gebäude 201 untergebracht ist. Auf einem Dach 202 des Gebäudes 201 steht ein Mast 203, an welchem mehrere Antennen 204 installiert sind. In unmittelbarer Nachbarschaft der Antennen 204 ist ein Hochfrequenzsender 205 auf dem Mast 203 angeordnet. Der Hochfrequenzsender 205 wird auch als Remote Radio Head (RRH) 205 bezeichnet. Im unteren Bereich des Gebäudes 201, zum Beispiel im Keller oder im Erdgeschoss, ist eine Stromversorgung 206 der Anlage angeordnet. Neben der Stromversorgung 206 ist als Datenquelle eine so genannte Basisstation 207 mit einem Radioserver untergebracht. Die Basisstation 207 ist mit dem RRH 205 über eine Datenleitung 208 zum Zweck des Datenaustausches signaltechnisch verbunden. Typischerweise ist die Datenleitung 208 ein optisches Datenkabel zur Übertragung von optischen Daten. Von der Stromversorgung 206 führt weiterhin eine Stromleitung 209 zu dem RRH 205. Bei der Stromleitung 209 handelt es sich typischerweise um einen 48-Volt-Stromanschluss. In herkömmlicher Weise ist zwischen der Stromversorgung 206 und dem RRH 205 ein Sicherungskasten 210 angeordnet.In Fig. 2 schematically a mobile station according to the modern RRH technology is shown, which is housed in a high building 201. On a roof 202 of the building 201 is a mast 203, on which a plurality of antennas 204 are installed. In the immediate vicinity of the antennas 204, a high-frequency transmitter 205 is arranged on the mast 203. Radio frequency transmitter 205 is also referred to as Remote Radio Head (RRH) 205. In the lower area of the building 201, for example in the basement or on the ground floor, a power supply 206 of the system is arranged. In addition to the power supply 206 is as a data source, a so-called base station 207 with housed a radio server. The base station 207 is signal connected to the RRH 205 via a data line 208 for the purpose of data exchange. Typically, data line 208 is an optical data cable for transmission of optical data. From the power supply 206, a power line 209 continues to lead to the RRH 205. The power line 209 is typically a 48 volt power supply. Conventionally, a fuse box 210 is disposed between the power supply 206 and the RRH 205.

Alternativ zu dem in Fig. 2 gezeigten Ausführungsbeispiel der Mobilfunkanlage kann die Mobilfunkanlage auch in einem Turm oder auf einem hohen Mast installiert sein.Alternatively to the in Fig. 2 shown embodiment of the mobile radio system, the mobile radio system can also be installed in a tower or on a high mast.

Zusätzlich zu den bisher an Mobilfunkstandorten mit herkömmlicher Technik 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 previously laid in mobile radio sites using conventional technology, therefore, the laying of additional optical cables for the construction of mobile radio systems of the new generation is required for RRH 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 dem 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.In the case of the new construction or modernization of a mobile radio system, a separate data line and a cable for the power supply had to be relocated to the RRH so far. 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.

In einer parallelen ebenfalls anhängigen Patentanmeldung derselben Patentanmelderin wird deshalb vorgeschlagen, den hohlen Innenleiter des vorhandenen Koaxialkabels gewissermaßen als Leerrohr für ein optisches Datenkabel für den RRH 205 zu nutzen. Gleichzeitig wird vorgeschlagen, den Innenleiter beziehungsweise den Außenleiter des Koaxialkabels zur Stromversorgung des RRH 205 zu benutzen. Diese grundsätzliche Idee ist nicht Gegenstand der vorliegenden Erfindung. Die vorliegende Erfindung ist vielmehr auf einen Adapter gerichtet, der für die neue Nutzung des in herkömmlichen Mobilfunkanlagen vorhandenen Speisekabels notwendig ist.In a co-pending co-pending patent application of the same Applicant, it is therefore proposed to use the hollow inner conductor of the existing coaxial cable as a sort of conduit for an optical data cable for the RRH 205. At the same time it is proposed that the inner conductor or the outer conductor of the coaxial cable to power the RRH 205 to use. This basic idea is not the subject of the present invention. Rather, the present invention is directed to an adapter which is necessary for the new use of the feeder cable present in conventional mobile radio systems.

Fig. 3A zeigt schematisch einen erfindungsgemäßen Adapter 301, der als Stecker ausgebildet ist. Der Adapter 301 weist ein Steckergehäuse 302 aus Metall auf, das eine Überwurfmutter 303 trägt. An das Steckergehäuse 302 ist eine erste Ader 304 einer zweiadrigen Leitung 305 angeschlossen. Eine zweite Ader 306 ist an einen zentralen Kontaktstift 307 angeschlossen. Der Kontaktstift 307 und die zweite Ader 306 sind elektrisch isoliert in dem Gehäuse 302 angeordnet. Fig. 3A schematically shows an adapter 301 according to the invention, which is designed as a plug. The adapter 301 has a plug housing 302 made of metal, which carries a cap nut 303. To the connector housing 302, a first core 304 of a two-wire line 305 is connected. A second wire 306 is connected to a central contact pin 307. The contact pin 307 and the second wire 306 are electrically insulated in the housing 302.

Der Adapter 301 entspricht in seinen Abmessungen einer 7/16" beziehungsweise N-Steckverbindung und gestattet den Anschluss an eine 7/16" Koaxialanschlussbuchse. Auf diese Weise ermöglicht der Adapter 301 den Anschluss des zweiadrigen Kabels 305 an ein Koaxialkabel. Die Abmessungen 7116" ist im Zusammenhang mit der vorliegenden Erfindung nur beispielhaft für andere Abmessungen gewählt, weil Koaxialbuchsen oder -stecker in Mobilfunkanlagen üblicherweise diesen Durchmesser haben. Selbstverständlich ist die Erfindung aber nicht auf diesen Durchmesser beschränkt.The adapter 301 corresponds in its dimensions to a 7/16 "or N-type connector and allows connection to a 7/16" coaxial connector. In this way, the adapter 301 allows the connection of the two-wire cable 305 to a coaxial cable. The dimensions 7116 "are chosen in the context of the present invention only as an example for other dimensions, because coaxial sockets or plugs in mobile radio systems usually have this diameter., Of course, the invention is not limited to this diameter.

Es gibt auch Mobilfunkanlagen, bei denen die Enden des Speisekabels mit Koaxialsteckern an Stelle von Buchsen versehen sind. In solchen Fällen wird ein anderer Typ von Adapter benötigt, der im Zusammenhang mit Fig. 3B beschrieben wird.There are also mobile stations in which the ends of the feeder cable are provided with coaxial connectors instead of sockets. In such cases, another type of adapter is needed that is related to Fig. 3B is described.

Fig. 3B zeigt schematisch einen erfindungsgemäßen Adapter 311, der als Buchse ausgebildet ist. Der Adapter 311 weist ein Gehäuse 312 aus Metall auf, das mit einem Außengewinde 313 versehen ist. An das Gehäuse 312 ist eine erste Ader 314 einer zweiadrigen Leitung 315 angeschlossen. Eine zweite Ader 316 ist an eine zentral angeordnete Kontaktbuchse 317 angeschlossen. Die Kontaktbuchse 317 und die zweite Ader 306 sind elektrisch isoliert in dem Gehäuse 312 angeordnet. Fig. 3B schematically shows an adapter 311 according to the invention, which is designed as a socket. The adapter 311 has a housing 312 made of metal, which is provided with an external thread 313. To the housing 312, a first core 314 of a two-wire line 315 is connected. A second wire 316 is connected to a centrally located contact socket 317. The Contact socket 317 and the second wire 306 are electrically insulated in the housing 312.

Fig. 4 zeigt eine Anordnung mit zwei Adaptern 301, die auf ein bereits vorhandenes Speisekabel 105 in einer Mobiffunkanlage montiert sind. Das Speisekabel 105 ist an seinen Enden jeweils mit einer Anschlussbuchse 401 versehen. Der Anschlussbereich der Anschlussbuchse 401 ist mit einem Gehäuse 402 und einer mittleren Kontaktbuchse 403 ganz entsprechend zu dem Anschlussbereich der Buchse 311 aufgebaut. In die Anschlussbuchsen 401 wird jeweils ein als Stecker ausgebildeter Adapter 301 eingesetzt und durch das Festdrehen der Überwurfmuttern 303 auf einem Außengewinde der Anschlussbuchse 401 befestigt. Fig. 4 shows an arrangement with two adapters 301, which are mounted on an already existing feed cable 105 in a Mobiffunkanlage. The feeder cable 105 is provided at its ends with a connection socket 401, respectively. The connection region of the connection socket 401 is constructed with a housing 402 and a middle contact socket 403 completely corresponding to the connection region of the socket 311. In each of the connection sockets 401, an adapter 301 designed as a plug is inserted and fastened by tightening the union nuts 303 on an external thread of the connection socket 401.

Die zweiadrigen Kabel 305 sind auf der einen Seite an die Stromversorgung 206 angeschlossen und auf der anderen Seite an den RRH 205. Zwischen den beiden zweiadrigen Kabeln 305 erstreckt sich das Speisekabel 105. Das bedeutet, dass die 48-V-Stromversorgung im Inneren der Mobilfunkstation über das nicht mehr als Hochfrequenzkabel genutzte Speisekabel 105 geführt ist, wobei die beiden Adern der zweiadrigen Kabel mit einem Innenleiter 403 beziehungsweise mit einem Außenleiter 404 des Speisekabels 105 verbunden sind.The two-wire cables 305 are connected on one side to the power supply 206 and on the other side to the RRH 205. Between the two two-wire cables 305 extends the feed cable 105. This means that the 48V power supply inside the mobile station is fed through the no longer used as a high-frequency cable feed cable 105, wherein the two wires of the two-wire cable with an inner conductor 403 and an outer conductor 404 of the feeder cable 105 are connected.

Zur Gewährleistung eines Berührungsschutzes können die an den Adaptern 301 offen liegenden Metalloberflächen mit einem Schrumpfschlauch oder selbstverschweißendem Bitumenband isoliert werden.To ensure protection against contact, the metal surfaces exposed on the adapters 301 can be insulated with a shrink tubing or self-fusing bitumen tape.

Wenn die Enden des Speisekabels 105 in einer Mobilfunkanlage nicht mit Buchsen, sondern mit Steckern versehen sind, dann kommt der Adapter 311 zum Einsatz. Die grundsätzliche Funktionsweise ist bei beiden Ausführungsformen dieselbe.If the ends of the feeder cable 105 are not provided with sockets in a mobile radio system, but with plugs, then the adapter 311 is used. The basic operation is the same in both embodiments.

Diese Vorgehensweise bei der Umrüstung von bereits bestehenden Mobilfunkstationen auf die neue RRM-Technologie weist eine Reihe von Vorteilen auf.This approach to upgrading existing mobile stations to the new RRM technology has a number of advantages.

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.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.

Durch die vorgeschlagene Nutzung des bereits installierten Speisekabels zur Stromversorgung können vorhandene Mobilfunkstationen wesentlich kostengünstiger auf die neue RRH-Technologie umgerüstet werden.The proposed use of the already installed power supply cable allows existing mobile stations to be converted to the new RRH technology much more cost-effectively.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

101101
Mastmast
102102
Sendeantennetransmitting antenna
103103
Empfangsantennereceiving antenna
104a..d104a..d
Jumperkabeljumper cables
105a,b105a, b
Speisekabelfeeder cable
106a..d106a..d
Steckverbindungconnector
107107
Datenquelle, BasisstationData source, base station
108108
ÜberspannungsschutzOvervoltage protection
109109
Antennenvorverstärkerantenna preamplifier
110110
ÜberspannungsableiterSurge arresters
201201
Gebäudebuilding
202202
Dachtop, roof
203203
Mastmast
204204
Antennenantennas
205205
Remote Radio Head (RRH), HochfrequenzsenderRemote Radio Head (RRH), radio frequency transmitter
206206
Stromversorgungpower supply
207207
Datenquelle, BasisstationData source, base station
208208
Datenleitungdata line
209209
Stromleitungpower line
210210
Sicherungskastenfuse box
301301
Adapteradapter
302302
Gehäusecasing
303303
ÜberwurfmutterNut
304304
erste Aderfirst vein
305305
Zweiadriges KabelTwo-core cable
306306
zweite Adersecond vein
307307
Kontaktstiftpin
311311
Adapteradapter
312312
Gehäusecasing
313313
Außengewindeexternal thread
314314
erste Aderfirst vein
315315
Zweiadriges KabelTwo-core cable
316316
zweite Adersecond vein
317317
KontaktbuchseContact socket
401401
Anschlussbuchsesocket
402402
Gehäusecasing
403403
Innenleiterinner conductor
404404
Außenleiterouter conductor

Claims (4)

Verfahren zum Umrüsten einer Mobilfunkstation mit einem Koaxialkabel zur Verbindung eines Hochfrequenzsenders mit einer Antenne, wobei das Verfahren die folgenden Schritte umfasst: - Montieren von zwei Adaptern (301, 311) an ein in der Mobilfunkstation vorhandenes Koaxialkabel, das jeweils eine Anschlussbuchse (401) an seinen beiden Enden aufweist; - Anschließen eines zweiadrigen Kabels (305) an eine Stromversorgung (206) und eines anderen zweiadrigen Kabels (305) an einen Radio Remote Head (205); - Montieren des Koaxialkabels zwischen das zweiadrige Kabel (305) zur Stromversorgung (206) und das zweiadrige Kabel (305) zur Radio Remote Head (205) und - Isolieren der Adapter (301, 311). A method of retrofitting a mobile radio station having a coaxial cable for connecting a radio frequency transmitter to an antenna, the method comprising the steps of: - mounting two adapters (301, 311) to a coaxial cable present in the mobile station, each having a connection socket (401) at its two ends; - connecting a two-wire cable (305) to a power supply (206) and another two-wire cable (305) to a radio remote head (205); - Mount the coaxial cable between the two - core cable (305) to the power supply (206) and the two - core cable (305) to the Radio Remote Head (205) and - Isolate the adapter (301, 311). Mobilfunkstation, die gemäß der RRH-Technologie ausgebildet ist,
dadurch gekennzeichnet,
dass sie mit einer Anordnung mit mindestens zwei Adaptern zum Anschluss eines mehradrigen Kabels an ein Koaxialkabel ausgestattet ist.Mobile station, which is designed according to the RRH technology,
characterized,
that it is equipped with an arrangement with at least two adapters for connecting a multi-core cable to a coaxial cable. Mobilfunkstation nach Anspruch 2,
dadurch gekennzeichnet,
dass die Adapter (301,311) über das Koaxialkabel miteinander verbunden sind.Mobile radio station according to claim 2,
characterized,
in that the adapters (301, 311) are connected to one another via the coaxial cable. Mobilfunkstation nach Anspruch 2,
dadurch gekennzeichnet,
dass das Koaxialkabel ein Speisekabel (105, 105a, 105b) der Mobilfunkstation ist.Mobile radio station according to claim 2,
characterized,
the coaxial cable, a power cable (105, 105a, 105b) of the mobile station.
EP09002655.0A 2008-02-25 2009-02-25 Adapter for a coaxial cable Active EP2093847B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008010930A DE102008010930A1 (en) 2008-02-25 2008-02-25 Adapter for a coaxial cable

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EP2093847A3 EP2093847A3 (en) 2011-06-15
EP2093847B1 EP2093847B1 (en) 2013-12-25

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ID=39688640

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US (2) US7708592B2 (en)
EP (1) EP2093847B1 (en)
DE (2) DE102008010930A1 (en)
ES (1) ES2453969T3 (en)
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US7708592B2 (en) 2010-05-04
US20090215286A1 (en) 2009-08-27
US20100173522A1 (en) 2010-07-08
ES2453969T3 (en) 2014-04-09
ZA200901313B (en) 2009-11-25
EP2093847B1 (en) 2013-12-25
EP2093847A3 (en) 2011-06-15
DE102008010930A1 (en) 2009-08-27
DE202008005457U1 (en) 2008-08-14

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