JPH09200839A - Small sized radio base station - Google Patents

Small sized radio base station

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Publication number
JPH09200839A
JPH09200839A JP8004265A JP426596A JPH09200839A JP H09200839 A JPH09200839 A JP H09200839A JP 8004265 A JP8004265 A JP 8004265A JP 426596 A JP426596 A JP 426596A JP H09200839 A JPH09200839 A JP H09200839A
Authority
JP
Japan
Prior art keywords
base station
radio base
station
signal
small
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.)
Pending
Application number
JP8004265A
Other languages
Japanese (ja)
Inventor
Sanetoshi Hirokane
Masumi Kitagawa
Masami Sasaki
Shinya Tanaka
真清 北川
実俊 広兼
晋也 田中
正美 笹木
Original Assignee
N T T Ido Tsushinmo Kk
エヌ・ティ・ティ移動通信網株式会社
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 N T T Ido Tsushinmo Kk, エヌ・ティ・ティ移動通信網株式会社 filed Critical N T T Ido Tsushinmo Kk
Priority to JP8004265A priority Critical patent/JPH09200839A/en
Publication of JPH09200839A publication Critical patent/JPH09200839A/en
Application status is Pending legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To provide a base station in which a signal from the radio base station is not required to be converted into an RF signal and a service area is provided at a remote location economically and comparatively simply.
SOLUTION: A signal from a radio base station 1 to a small sized radio base station 10 is connected via a private line 13. Thus, it is not required to make conversion into an RF signal and the signal is sent from a small sized radio base station use interface section 29 of the radio base station 1 to a transmitter-receiver 23 of the small sized radio base station 10 via the private line 13 and an interface section 31. The transmitter-receiver 33 is operated similarly to a transmitter-receiver 23 in the radio base station 1 and makes communication with a mobile radio station in a service area at a remote location.
COPYRIGHT: (C)1997,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、複数の無線移動局と通信を行う無線基地局を有する移動通信システムにおいて無線基地局からの電波の届かない遠隔地点等に延出して設置され、無線移動局と通信を行う小型無線基地局に関する。 The present invention relates to is placed extends remote location such that radio waves do not reach from the radio base station in a mobile communication system having a radio base station communicating with a plurality of wireless mobile station, a wireless mobile about small radio base station communicating with the station.

【0002】 [0002]

【従来の技術】移動通信においては、図3に示すように、無線基地局1は一般に2Mbpsまたは1.5Mbpsの伝送路3を介して制御局5に接続されている。 BACKGROUND OF THE INVENTION mobile communication, as shown in FIG. 3, the radio base station 1 is generally connected to the control station 5 via the transmission path 3 of 2Mbps or 1.5 Mbps. 無線基地局は通常複数のキャリアを送出し得る容量を有し、その周辺の半径数百ないし数キロメートルを複数のセクタに分けたサービスエリアとしてカバーし、このサービスエリア内の複数の無線移動局7と通信を行うようになっている。 The radio base station typically has a capacity capable of delivering a plurality of carriers, covering a radius of several hundred to several kilometers around the as a service area divided into a plurality of sectors, a plurality of wireless mobile station 7 in the service area It is adapted to communicate with.

【0003】また、無線基地局から離れた所にサービスエリアを形成するには、無線基地局から送出される信号を一旦光信号に変換して光ケーブルにより遠隔地に伝送し、再びRF(無線周波数)信号に戻すといった手段でサービスエリアを形成したり、またはRF信号のまま中継する場合には、一旦別の周波数に変換して遠隔地に伝送することが必要である。 [0003] To form a service area away from the radio base station transmits to a remote location by an optical cable to convert a signal transmitted from the radio base station once the optical signal again RF (Radio Frequency ) or to form a service area by a means such as back to the signal, or when the relay remains RF signal, it is necessary to transmit to the remote location once converted to another frequency. いずれにしても、無線基地局からRF信号の状態で遠隔地に送出し、その間にRF信号を変換する装置が必要である。 Anyway, sent to a remote location in the form of RF signals from the radio base station, there is a need for an apparatus for converting an RF signal therebetween.

【0004】 [0004]

【発明が解決しようとする課題】無線基地局から電波の届かない例えば地下街などのような比較的スペースの狭い閉空間にサービスエリアを設けようとする場合、従来では、基地局から送出する信号を一旦光信号に変換し、 [SUMMARY OF THE INVENTION] When it is intended to create a service area between a relatively small space enclosed space, such as for example underground mall radio waves do not reach from the radio base station, conventionally, a signal transmitted from the base station once converted into an optical signal,
光ファイバケーブルを介して目的の遠隔地に伝送し、再びRF信号に戻すことが必要であるため、RF変換装置等が必要である分価格が高くなるという問題があり、これは特に容量の低いエリアで顕著である。 Via an optical fiber cable to transmit to the remote object, since it is necessary to back into the RF signal, there is a problem that minute price is required RF converter or the like is increased, which is particularly low capacity it is remarkable in the area.

【0005】また、別の方法として、サービスエリアのための無線基地局を新たに制御局の配下に設けることも考えられるが、基地局の数を増大すると、それだけ制御局の監視制御対象となる基地局が増大し、制御局の負荷が増大してしまうとともに、また小容量であるのに制御局から伝送路を接続しなければならず、伝送路コストが割高になるという問題がある。 [0005] As another method, it is conceivable to provide under the new control station the radio base station for a service area, increasing the number of base stations, a supervisory control target of much control station base station increases, along with the load of the control station is increased, also have to be connected to the transmission path from the control station to a small volume, there is a problem that transmission path cost is expensive.

【0006】本発明は、上記に鑑みてなされたもので、 [0006] The present invention has been made in view of the above,
その目的とするところは、無線基地局からの信号をRF And it has an object, RF signals from the radio base station
信号に変換する必要がなく、比較的簡単かつ経済的に遠隔地にサービスエリアを設けることができる小型無線基地局を提供することにある。 It is not necessary to convert the signals to provide a small radio base station capable of providing a service area into relatively simple and economically remote.

【0007】 [0007]

【課題を解決するための手段】上記目的を達成するため、請求項1記載の本発明は、複数の送受信機により複数のキャリアを送出して、複数の無線移動局と通信を行う無線基地局を有する移動通信システムにおいて、前記無線基地局において1つまたは複数の前記送受信機の代わりに設けられた小型無線基地局用インタフェースに専用線を介して接続され、該専用線を介した信号の中継および変換を行うインタフェース部と、該インタフェース部に接続され、無線移動局と通信を行うべく前記専用線を介して無線基地局から延出した前記無線基地局内の送受信機と同じように機能する送受信機とを有することを要旨とする。 To achieve the above object, according to an aspect of the present invention is claimed in claim 1, and sends the plurality of carriers by a plurality of transceivers, radio base station communicating with a plurality of radio mobile station in a mobile communication system having a, which is connected via a dedicated line to one or more of the transceivers small radio base station interface provided in place of the radio base station, a relay of a signal through the line the dedicated and and the interface unit for converting, connected to said interface unit, transmission and reception functions in the same way as the extended radio base station transceiver from the radio base station through the dedicated line to perform communication with the wireless mobile station and summarized in that and a machine.

【0008】請求項1記載の本発明にあっては、小型無線基地局は無線基地局の送受信機が専用線を介して遠隔地等に延出されて設けられたものと同等であり、無線基地局からの信号をRF信号に変換する必要がなく、遠隔地等に伝送できるとともに、また上位の制御局は小型無線基地局を1つの無線基地局として特別に制御する必要なく処理することができる。 [0008] In the present invention according to claim 1, the small radio base station is equivalent to that transceiver radio base station is provided to be extended in a remote location, such as via a dedicated line, radio a signal from a base station is not necessary to convert the RF signal, it is possible to transmit to a remote location, etc., and the upper level control station is able to handle without having to specially control the small radio base station as a radio base station it can.

【0009】 [0009]

【発明の実施の形態】以下、図面を用いて本発明の実施の形態について説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention are described with reference to the drawings.

【0010】図1は、本発明の一実施形態に係る小型無線基地局を有する移動通信システムの構成を示す図である。 [0010] Figure 1 is a diagram showing a configuration of a mobile communication system having a small radio base station according to an embodiment of the present invention. 同図において、小型無線基地局10は、専用線13 In the figure, the small radio base station 10, a dedicated line 13
をそれぞれ介して無線基地局1に接続され、該無線基地局1は伝送路3を介して呼の接続処理や音声処理を行う制御局5に接続されている。 The connected to the wireless base station 1 via each radio base station 1 is connected to a control station 5 for performing connection processing and voice processing of the call via the transmission path 3. 無線基地局1と小型無線基地局10との間を接続する専用線13は、例えば64kb Dedicated line 13 that connects the radio base station 1 and the small radio base station 10, for example 64kb
psのIインタフェース専用線であり、該専用線13はメタリックケーブル回線に限らず、光ケーブル回線、固定マイクロ回線などで構成されてもよい。 An I interface dedicated line ps, private line 13 is not limited to metallic cable lines, optical cable line, or may be configured by a fixed microwave network.

【0011】無線基地局1は、制御局5の制御によりサービスエリア1aをカバーし、該サービスエリア1a内に存在する無線移動局と通信を行い、また専用線13を介して無線基地局1に接続された小型無線基地局10は例えば地下街、地下鉄ホームなどのような閉空間をそのサービスエリア10aとしてカバーし、該サービスエリア10a内に存在する無線移動局と通信を行うが、この場合無線基地局1から小型無線基地局10への信号はR [0011] The radio base station 1 covers a service area 1a by control of the control station 5, communicates with a radio station located in the service area 1a, also the radio base station 1 via the dedicated line 13 connected small radio base station 10, for example underground shopping area, covering a closed space such as a subway home as its coverage area 10a, but communicates with the radio station located in the service area 10a, in this case base signal from station 1 to the small radio base station 10 is R
F信号に変換されることなく伝送されるとともに、また小型無線基地局の制御は制御局5にとって新たな無線基地局が増えたものでなく、無線基地局1の一部が延長したものとして負荷の増大なく制御を行うことができる。 While being transmitted without being converted into F signal, also a small control of the radio base station are not intended new radio base station has increased to the control station 5, the load as part of a wireless base station 1 is extended it is possible to perform the increased without control.

【0012】小型無線基地局10および無線基地局1 [0012] The small radio base station 10 and the radio base station 1
は、詳細には図2に示すように構成されている。 It is configured as are shown in Figure 2 in detail. 同図において、無線基地局1は、伝送路3を介して制御局5に接続され、伝送路との信号変換および信号中継を行うインタフェース部21、該インタフェース部21に接続され、ベースバンドでの信号処理や受信RF信号の復調、 In the figure, the radio base station 1 is connected to the control station 5 via the transmission path 3, the interface unit 21 for performing signal conversion and signal relaying a transmission line, connected to the interface unit 21, the baseband signal processing and demodulation of the received RF signal,
送信信号の変調等を行うとともに、各々は1キャリア分の処理を行う複数の送受信機23、該複数の送受信機2 It performs modulation or the like of the transmission signal, a plurality of transceivers 23 each perform processing for one carrier component, the plurality of transceivers 2
3に接続され、複数のキャリアのRF信号を合成および分配するRF合成分配部25、各送受信機23およびインタフェース部21の監視および制御を行う監視制御部27、前記送受信機23の位置に代わりとして設けられ、専用線13を介して小型無線基地局10に接続される小型基地局用インタフェース部29を有する。 Is connected to 3, RF combining and distributing section 25 for the RF signals of a plurality of carriers to synthesize and distribution, the monitoring control unit 27 for monitoring and control of the transceiver 23 and the interface unit 21, as an alternative to the position of the transceiver 23 provided, having a small base station interface unit 29 connected to the small radio base station 10 via the dedicated line 13. なお、 It should be noted that,
RF信号は無線基地局1の周辺エリアを形成し、無線移動局と無線基地局1との間で送信される。 RF signal to form a surrounding area of ​​the radio base station 1 are transmitted between the radio mobile station and the radio base station 1.

【0013】また、小型無線基地局10は、専用線13 [0013] In addition, the small radio base station 10, a dedicated line 13
を介して無線基地局1の小型基地局用インタフェース部29に接続され、専用線13との信号変換および信号中継を行うインタフェース部31、および無線基地局1の送受信機23と同じ機能を有する送受信機33を有する。 Is connected to the small base station interface unit 29 of the radio base station 1 via the transmission and reception with the same function as signal conversion and interface unit 31 performs signal repeater and the radio base station 1 of the transceiver 23, the dedicated line 13 with a machine 33.

【0014】このように構成される小型無線基地局10 [0014] constructed small radio base station 10 in this manner
を有する移動通信においては、無線基地局1から小型無線基地局10への信号は、専用線13を介して接続されているものであるため、RF信号に変換する必要がなく、無線基地局1の小型基地局用インタフェース部29 In the mobile communication with, for signals from the radio base station 1 to the small radio base station 10 is connected via a dedicated line 13, there is no need to convert the RF signal, the radio base station 1 interface unit 29 for the small base station
から専用線13およびインタフェース部31を介して小型無線基地局10の送受信機33に送信され、該送受信機33は無線基地局1内の送受信機23と全く同様に作動し、例えば遠隔地に位置するサービスエリア10a内の無線移動局7と通信を行うことができる。 Via the dedicated line 13 and the interface unit 31 from being transmitted to the transceiver 33 of the small radio base station 10, said transmission receiver 33 completely operates in the same manner as the transceiver 23 in the wireless base station 1, for example, remotely located a wireless mobile station 7 in the service area 10a for communication can be performed. また、この制御において、制御局5は小型無線基地局10を1つの無線基地局として制御する必要がなく、小型無線基地局10のみを通常のように制御するだけでよいものであるため、制御局5の負荷が増大することもない。 Further, since in this control, the control station 5 is a small radio base station 10 need not be controlled as a single wireless base station, it is only necessary to control only the small radio base station 10 in a conventional manner, the control load of station 5 is not increased. なお、無線基地局1内における小型無線基地局10の設置数および小型無線基地局10内における送受信機33の数は1 Incidentally, the number of transceivers 33 in an installation number of the small radio base station 10 and the small radio base station 10 in the wireless base station 1 1
つに限定されるものではない。 It is not limited to One.

【0015】 [0015]

【発明の効果】以上説明したように、本発明によれば、 As described in the foregoing, according to the present invention,
小型無線基地局は無線基地局の送受信機が専用線を介して遠隔地等に延出されて設けられたものと同等であり、 Small radio base station is equivalent to that transceiver radio base station is provided to be extended in a remote location, such as via a dedicated line,
無線基地局からの信号をRF信号に変換する必要がなく、遠隔地等に伝送できるものであるため、遠隔地でのサービスエリアを比較的容易かつ経済的に形成することができるとともに、また上位の制御局は小型無線基地局を1つの無線基地局として特別に制御する必要なく処理することができるため、制御局の負荷を増大することなく経済化を図ることができる。 The signal from the radio base station is not necessary to convert RF signals, since they are capable of transmitting to a remote location such as, it is possible to relatively easily and economically forming a service area in remote areas, also higher the control station is able to achieve economy without increasing the order can be processed without having to specially control the small radio base station as a radio base station, the load of the control station.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の一実施形態に係る小型無線基地局を有する移動通信システムの構成を示す図である。 1 is a diagram showing a configuration of a mobile communication system having a small radio base station according to an embodiment of the present invention.

【図2】図1に示す移動通信システムに使用されている小型無線基地局および無線基地局の詳細な構成を示す図である。 2 is a diagram showing a detailed configuration of a small radio base station and a radio base station used in the mobile communication system shown in FIG.

【図3】従来の移動通信システムの構成を示す図である。 3 is a diagram showing a configuration of a conventional mobile communication system.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 無線基地局 3 伝送路 5 制御局 10 小型無線基地局 13 専用線 23,33 送受信機 29 小型基地局用インタフェース部 31 インタフェース部 1 wireless base station 3 the transmission line 5 control station 10 the small radio base station 13 dedicated lines 23, 33 transceivers for 29 small base station interface unit 31 interface unit

───────────────────────────────────────────────────── フロントページの続き (72)発明者 広兼 実俊 東京都港区虎ノ門二丁目10番1号 エヌ・ ティ・ティ移動通信網株式会社内 ────────────────────────────────────────────────── ─── of the front page continued (72) inventor wide and JitsuShun Toranomon, Minato-ku, Tokyo-chome 10th No. 1 NTT mobile communications network in the Corporation

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 複数の送受信機により複数のキャリアを送出して、複数の無線移動局と通信を行う無線基地局を有する移動通信システムにおいて、 前記無線基地局において1つまたは複数の前記送受信機の代わりに設けられた小型無線基地局用インタフェースに専用線を介して接続され、該専用線を介した信号の中継および変換を行うインタフェース部と、 該インタフェース部に接続され、無線移動局と通信を行うべく前記専用線を介して無線基地局から延出した前記無線基地局内の送受信機と同じように機能する送受信機とを有することを特徴とする小型無線基地局。 By sending a plurality of carriers by 1. A plurality of transceivers, a plurality of mobile communication system having a radio base station communicating with the wireless mobile station, one or more of the transceivers in the radio base station are connected via a dedicated line to the small radio base station interface provided in place of an interface unit for relaying and conversion of the signal via the line the dedicated, is connected to the interface unit, communicate with a wireless mobile station small radio base station; and a transceiver that functions like the transceiver of the radio base station extending from the radio base station through the dedicated line to perform the.
JP8004265A 1996-01-12 1996-01-12 Small sized radio base station Pending JPH09200839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8004265A JPH09200839A (en) 1996-01-12 1996-01-12 Small sized radio base station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8004265A JPH09200839A (en) 1996-01-12 1996-01-12 Small sized radio base station

Publications (1)

Publication Number Publication Date
JPH09200839A true JPH09200839A (en) 1997-07-31

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Family Applications (1)

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JP8004265A Pending JPH09200839A (en) 1996-01-12 1996-01-12 Small sized radio base station

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999067901A1 (en) * 1998-06-24 1999-12-29 Sk Telecom Co., Ltd. Repeating installation using telephone line
JP2005354240A (en) * 2004-06-09 2005-12-22 Nec Corp Mobile network, wireless network multiplexer, and communication path control method used for the same
JP2014239526A (en) * 2006-07-14 2014-12-18 エルジーシー ワイヤレス,インコーポレイティド System and method for providing dedicated capacity in cellular network

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999067901A1 (en) * 1998-06-24 1999-12-29 Sk Telecom Co., Ltd. Repeating installation using telephone line
EP1091508A1 (en) * 1998-06-24 2001-04-11 SK Telecom Co.,Ltd. Repeating installation using telephone line
EP1091508A4 (en) * 1998-06-24 2002-01-23 Sk Telecom Co Ltd Repeating installation using telephone line
US6738597B1 (en) 1998-06-24 2004-05-18 Sk Telecom Co., Ltd. Repeating installation using telephone line
JP2005354240A (en) * 2004-06-09 2005-12-22 Nec Corp Mobile network, wireless network multiplexer, and communication path control method used for the same
JP2014239526A (en) * 2006-07-14 2014-12-18 エルジーシー ワイヤレス,インコーポレイティド System and method for providing dedicated capacity in cellular network

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