JP3385203B2 - Wireless zone configuration method for mobile communication system - Google Patents
Wireless zone configuration method for mobile communication systemInfo
- Publication number
- JP3385203B2 JP3385203B2 JP1585898A JP1585898A JP3385203B2 JP 3385203 B2 JP3385203 B2 JP 3385203B2 JP 1585898 A JP1585898 A JP 1585898A JP 1585898 A JP1585898 A JP 1585898A JP 3385203 B2 JP3385203 B2 JP 3385203B2
- Authority
- JP
- Japan
- Prior art keywords
- base station
- station
- information
- wireless
- peripheral
- 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.)
- Expired - Lifetime
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- Mobile Radio Communication Systems (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、複数の無線基地局
と複数の移動局を有する移動通信システム、および、移
動通信システムの無線ゾーン構成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system having a plurality of radio base stations and a plurality of mobile stations, and a radio zone configuring method for the mobile communication system.
【０００２】さらに詳述すると、本発明は、無線基地局
の新設あるいは廃止を伴った移動通信システムおよび無
線ゾーン構成方法、あるいは、公衆システムに自営シス
テムをオーバレイする場合などに適用可能な、移動通信
システムおよび無線ゾーン構成方法に関する。More specifically, the present invention can be applied to a mobile communication system and a radio zone configuring method involving the establishment or abolition of a radio base station, or mobile communication applicable to a case where a private system is overlaid on a public system. The present invention relates to a system and a wireless zone configuration method.
【０００３】[0003]
【従来の技術】従来から知られている移動通信システム
においては、各無線基地局は、下りの共通制御チャネル
である報知チャネルによって、自局の状態を示す情報と
予め基地局ごとに持っている周辺基地局の情報を、移動
局に対して報知している。各移動局はこの報知チャネル
の情報に基づいて、通信中に周辺ゾーンの止まり木チャ
ネルの受信レベルを測定し、その受信レベルが予め定め
たしきい値以上であって且つ最も高いレベルの基地局へ
のハンドオーバを実施している。2. Description of the Related Art In a conventionally known mobile communication system, each radio base station has information indicating its own state and each base station in advance through a broadcast channel which is a downlink common control channel. Information about peripheral base stations is reported to mobile stations. Each mobile station measures the reception level of the perch channel in the peripheral zone during communication based on the information of this broadcast channel, and the reception level is a preset threshold value or higher and the highest level base station. Is being handed over to.
【０００４】また、移動局への着信時には、まず移動局
の位置を記憶しているサービス制御局から当該移動局の
位置情報を得ると共に、その位置情報から一斉呼び出し
を行う基地局を特定し、着信処理を行っている。When an incoming call arrives at a mobile station, first, the location information of the mobile station is obtained from the service control station that stores the location of the mobile station, and from this location information, the base station that makes the paging is specified. Incoming call processing.
【０００５】そして、基地局の新設時あるいは改廃時に
は、保守者自身が周辺基地（ゾーン）情報や一斉呼び出
しエリア情報を更新している。When a base station is newly installed or abolished, the maintenance person himself updates the peripheral base (zone) information and the general calling area information.
【０００６】[0006]
【発明が解決しようとする課題】上述のように、従来の
移動通信システムでは、基地局やサービス制御局側にお
いて、周辺ゾーン情報や一斉呼び出しエリアを構成する
基地局情報などのデータベースを予め保持しておく必要
があった。As described above, in the conventional mobile communication system, the base station and the service control station side previously hold a database of the peripheral zone information and the base station information constituting the paging area. I had to keep it.
【０００７】しかしながら、無線基地局の新設あるいは
廃止があった場合には、上記データベースの更新に余分
な手間がかかるばかりでなく、コードレスシステムへの
対応など、柔軟なシステム構成を採ることができないと
いう問題があった。However, when a radio base station is newly installed or abolished, it takes extra time to update the database, and it is impossible to adopt a flexible system configuration such as support for a cordless system. There was a problem.
【０００８】よって、本発明の目的は、上述の点に鑑
み、無線基地局の新設もしくは廃止に伴う周辺基地局情
報、あるいは、一斉呼び出しエリア情報などの更新が容
易かつ柔軟に行えるようにした移動通信システムおよび
無線ゾーン構成方法を提供することにある。Therefore, in view of the above points, an object of the present invention is to enable easy and flexible updating of peripheral base station information or paging area information accompanying the establishment or abolition of radio base stations. A communication system and a wireless zone configuration method are provided.
【０００９】[0009]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明に係る無線ゾーン構成方法では、移動局の
位置情報を記憶するサービス制御局および基地局制御局
を含んだ移動通信システムにおいて無線基地局の新設も
しくは廃止を行う際に、新設もしくは廃止する特定無線
局において最大の受信レベルを呈する止まり木チャネル
の周辺無線基地局を判定し、前記新設もしくは廃止する
特定無線局は、当該特定無線局の使用周波数および位置
情報を含む基地局新設情報もしくは基地局廃止情報を、
前記判定した周辺無線基地局へ通知し、前記通知を受け
た前記周辺無線基地局では当該周辺無線基地局が有する
周辺ゾーン情報のデータベースを更新し、且つ、当該周
辺無線基地局を制御する既定の基地局制御局を介して前
記基地局新設情報もしくは前記基地局廃止情報を当該移
動通信システムに含まれている他の無線基地局に通知
し、前記既定の基地局制御局は、前記基地局新設情報も
しくは前記基地局廃止情報を前記サービス制御局に通知
することにより当該サービス制御局が有する一斉呼び出
しエリアテーブルを更新する、ことを特徴とするもので
ある。ここで、無線アクセス方式として符号分割多元接
続方式を用いることが可能である。In order to achieve the above object, in a wireless zone configuration method according to the present invention, a mobile communication system including a service control station and a base station control station that store position information of mobile stations. At the time of newly establishing or abolishing the radio base station in, the surrounding radio base station of the perch channel which exhibits the maximum reception level at the particular radio station to be newly established or abolished is determined, and the particular radio station to be newly established or abolished is Base station new information or base station abolition information including the used frequency and location information of a specific radio station,
Notifying the determined peripheral wireless base station, the peripheral wireless base station that has received the notification updates the database of peripheral zone information that the peripheral wireless base station has, and a predetermined default that controls the peripheral wireless base station. Notify the other radio base station included in the mobile communication system of the base station new information or the base station abolition information via the base station control station, the default base station control station, the base station new installation The paging area table of the service control station is updated by notifying the service control station of the information or the base station abolition information. Here, it is possible to use a code division multiple access method as the wireless access method.
【００１０】[0010]
【００１１】[0011]
【００１２】[0012]
【００１３】[0013]
【００１４】[0014]
【００１５】[0015]
【００１６】[0016]
【００１７】[0017]
【発明の実施の形態】以下、図面を参照しながら本発明
の実施の形態を詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.
【００１８】図１は本発明を適用した移動無線通信シス
テムの全体的構成を、また図２および図３は本発明を実
施した場合における各ノード間の信号シーケンスを示し
ている。FIG. 1 shows an overall configuration of a mobile radio communication system to which the present invention is applied, and FIGS. 2 and 3 show signal sequences between nodes when the present invention is implemented.
【００１９】図１において、１はサービス制御局、２ａ
および２ｂは交換局、３ａ〜３ｆは基地局制御局、４ａ
および４ｂは一斉呼び出しエリア、５ａ〜５ｆは無線ゾ
ーン、６ａ〜６ｆは無線基地局、７は移動局を示す。こ
のように、無線基地局６ａ〜６ｆは、無線ゾーン５ａ〜
５ｆをそれぞれ形成すると共に、基地局制御局３ａ〜３
ｆに接続されている。この基地局制御局３ａ〜３ｆは、
交換局２ａおよび２ｂに接続され、さらに、交換局２ａ
および２ｂはサービス制御局１に接続される。In FIG. 1, 1 is a service control station and 2a.
And 2b are switching stations, 3a to 3f are base station control stations, and 4a.
And 4b are paging areas, 5a to 5f are wireless zones, 6a to 6f are wireless base stations, and 7 is a mobile station. In this way, the wireless base stations 6a to 6f are connected to the wireless zones 5a to 6f.
5f respectively, and base station control stations 3a-3
connected to f. The base station control stations 3a to 3f are
Connected to the exchanges 2a and 2b, and further to the exchange 2a
And 2b are connected to the service control station 1.
【００２０】次に、図２を参照して、無線基地局新設時
の信号シーケンスについて説明する。Next, referring to FIG. 2, a signal sequence when a wireless base station is newly installed will be described.
【００２１】無線基地局６ｆを新たに増設した場合、無
線基地局６ｆは他の無線基地局からの止まり木チャネル
を最も強く受信した周辺無線基地局（本例では６ｅとす
る）に対して、自局６ｆの状態を表す情報（使用周波
数、位置情報等）を、他の無線基地局が受信可能なチャ
ネル（例えば、共通制御チャネル）で送信する。When the wireless base station 6f is newly added, the wireless base station 6f receives a perimeter wireless base station (6e in this example) that receives the perch channel from another wireless base station most strongly. Information indicating the state of the own station 6f (used frequency, position information, etc.) is transmitted on a channel (for example, a common control channel) that can be received by another wireless base station.
【００２２】周辺無線基地局６ｅは、この情報を受信
し、無線基地局６ｆの状態を表す情報を取り出す。そし
て、例えば基地局制御局３ｅを介して、他の周辺無線基
地局６ａ〜６ｄに対し、新設した無線基地局６ｆの情報
を通知する。The peripheral radio base station 6e receives this information and extracts the information indicating the state of the radio base station 6f. Then, for example, the information of the newly established wireless base station 6f is notified to the other peripheral wireless base stations 6a to 6d via the base station control station 3e.
【００２３】すると、他の周辺無線基地局６ａ〜６ｄは
それぞれの局が保持している周辺ゾーン情報（すなわ
ち、移動局がチャネル切り替えをするために必要な周辺
ゾーン情報）のデータベースを自律的に更新する（周辺
ゾーンテーブル更新処理：無線基地局６ｆ追加）。そし
て、更新した周辺ゾーン情報を下りの共通制御チャネル
である報知チャネルを介して各移動局に報知すること
で、移動局は無線基地局６ｆの存在を認識し、無線基地
局６ｆの無線ゾーン５ｆでの待ち受けや、無線基地局６
ｆへのチャネル切り替えが可能となる。Then, the other peripheral radio base stations 6a to 6d autonomously use the database of the peripheral zone information (that is, the peripheral zone information necessary for the mobile station to switch the channel) held by each station. Update (peripheral zone table update processing: wireless base station 6f added). Then, the mobile station recognizes the existence of the wireless base station 6f by notifying each mobile station of the updated peripheral zone information via the broadcast channel which is the downlink common control channel, and the wireless zone 5f of the wireless base station 6f is recognized. Standby and wireless base station 6
The channel can be switched to f.
【００２４】さらに、無線基地局６ｆの無線ゾーンに在
圏する移動局への着信を可能にするために、以下の処理
を行う。まず、無線基地局６ｆの情報を受信した周辺無
線基地局６ｅは、着信時の一斉呼び出しエリアのデータ
ベースを保持するサービス制御局１に対し、基地制御局
３ｅを介して無線基地局６ｆの基地局情報（周波数、位
置情報等）を通知する。サービス制御局１は、その情報
により、管理すべき一斉呼び出しエリアを構成する基地
局情報（すなわち、一斉呼び出しエリアテーブル）を更
新する。これにより、新設した無線基地局６ｆの無線ゾ
ーン５ｆに在圏する移動局に対しても着信が可能とな
る。Further, the following processing is performed in order to enable the incoming call to the mobile station located in the wireless zone of the wireless base station 6f. First, the peripheral wireless base station 6e, which has received the information of the wireless base station 6f, instructs the service control station 1 that holds the database of the general calling area at the time of incoming call to the base station of the wireless base station 6f via the base control station 3e. Information (frequency, position information, etc.) is notified. The service control station 1 updates the base station information (that is, the paging area table) that constitutes the paging area to be managed based on the information. As a result, the incoming call can be made to the mobile station located in the radio zone 5f of the newly established radio base station 6f.
【００２５】つぎに、図３を参照して、無線基地局廃止
時の信号シーケンスについて説明する。本図では、無線
基地局６ｆを廃止する場合を例に挙げてある。Next, the signal sequence when the radio base station is abolished will be described with reference to FIG. In this figure, the case where the wireless base station 6f is abolished is given as an example.
【００２６】無線基地局６ｆは、他の無線基地局からの
止まり木チャネルを最も強く受信している無線基地局
（本例では、６ｅとする）に対して、自局６ｆの状態を
表す情報、すなわち廃止通知（周波数、位置情報等）
を、他の無線基地局が受信可能なチャネル（例えば、共
通制御チャネル）で送信する。The radio base station 6f has information indicating the state of its own station 6f with respect to the radio base station (6e in this example) which receives the perch channel most strongly from another radio base station. , Ie, abolition notice (frequency, location information, etc.)
Is transmitted on a channel (for example, a common control channel) that can be received by another wireless base station.
【００２７】周辺無線基地局６ｅは、この情報を受信
し、無線基地局６ｆの状態を表す情報を取り出す。そし
て、例えば基地局制御局３ｅを介して、他の周辺無線基
地局６ａ〜６ｄに対し、廃止した無線基地局６ｆの情報
を通知する。The peripheral wireless base station 6e receives this information and extracts the information indicating the state of the wireless base station 6f. Then, the information of the abandoned radio base station 6f is notified to the other peripheral radio base stations 6a to 6d via the base station control station 3e, for example.
【００２８】すると、他の周辺無線基地局６ａ〜６ｄは
それぞれの局が保持している周辺ゾーン情報（すなわ
ち、移動局がチャネル切り替えをするために必要な周辺
ゾーン情報）のデータベースを自律的に更新する（周辺
ゾーンテーブル更新処理：無線基地局６ｆ削除）。そし
て、更新した周辺ゾーン情報を下りの共通制御チャネル
である報知チャネルを介して各移動局に報知すること
で、移動局は無線基地局６ｆの存在を認識せず、無線基
地局６ｆの廃止が可能となる。Then, the other peripheral radio base stations 6a to 6d autonomously use the database of the peripheral zone information (that is, the peripheral zone information necessary for the mobile station to switch the channel) held by each station. Update (peripheral zone table update process: delete wireless base station 6f). Then, by reporting the updated peripheral zone information to each mobile station via the broadcast channel that is the downlink common control channel, the mobile station does not recognize the existence of the wireless base station 6f, and the wireless base station 6f is abolished. It will be possible.
【００２９】さらに、報知チャネルにより知らされる報
知情報（周辺ゾーン情報）と、サービス制御局１で管理
する一斉呼び出しエリア情報との間で不一致が生じない
ようにするために、無線基地局６ｆの廃止通知情報を受
信した周辺無線基地局６ｅは、基地局制御局３ｅを介し
て、着信時の一斉呼び出しエリアのデータベースを保持
するサービス制御局１に対し無線基地局６ｆの情報（廃
止通知）を通知する。Further, in order not to cause a discrepancy between the broadcast information (peripheral zone information) notified by the broadcast channel and the paging area information managed by the service control station 1, the radio base station 6f operates as follows. Upon receiving the abolition notification information, the peripheral wireless base station 6e sends the information (abolition notification) of the wireless base station 6f to the service control station 1 that holds the database of the paging area for incoming calls via the base station control station 3e. Notice.
【００３０】サービス制御局１は、その情報により、管
理すべき一斉呼び出しエリアを構成する基地局情報を更
新する（一斉呼び出しエリアテーブル更新：６ｆ削
除）。これにより、報知情報内の周辺ゾーン情報と、サ
ービス制御局１で管理する一斉呼び出しエリア情報との
不一致は生じない。The service control station 1 updates the base station information that constitutes the paging area to be managed based on the information (update paging area table: delete 6f). As a result, no discrepancy occurs between the peripheral zone information in the broadcast information and the paging area information managed by the service control station 1.
【００３１】なお本発明は、ＣＤＭＡなど通信方式を問
うことなく、適用可能である。The present invention can be applied regardless of the communication system such as CDMA.
【００３２】[0032]
【発明の効果】以上説明した通り、本発明によれば、無
線基地局の新設もしくは廃止に伴う周辺基地局情報、あ
るいは、一斉呼び出しエリア情報などの更新が容易かつ
柔軟に行えるようになる。As described above, according to the present invention, it is possible to easily and flexibly update the peripheral base station information due to the establishment or abolition of the radio base station or the paging area information.
【００３３】さらに、本発明によれば、無線基地局増設
時あるいは廃止時の無線ゾーン構成や、公衆システムに
自営システムをオーバレイする場合の無線ゾーン構成を
簡易に行うことが可能となる。Further, according to the present invention, it is possible to easily perform the wireless zone configuration when the wireless base station is added or abolished, and the wireless zone configuration when the private system is overlaid on the public system.
【図１】本発明を適用した移動無線通信システムの全体
的構成図である。FIG. 1 is an overall configuration diagram of a mobile radio communication system to which the present invention is applied.
【図２】無線基地局新設時の信号シーケンスについて示
した説明図である。FIG. 2 is an explanatory diagram showing a signal sequence when a wireless base station is newly installed.
【図３】無線基地局廃止時の信号シーケンスについて示
した説明図である。FIG. 3 is an explanatory diagram showing a signal sequence when a radio base station is abolished.
１ サービス制御局 ２ａおよび２ｂ 交換局 ３ａ〜３ｆ 基地局制御局 ４ａおよび４ｂ 一斉呼び出しエリア ５ａ〜５ｆ 無線ゾーン ６ａ〜６ｆ 無線基地局 ７ 移動局 1 Service control station 2a and 2b exchanges 3a to 3f Base station control station 4a and 4b general calling area 5a-5f wireless zone 6a to 6f wireless base station 7 mobile stations
───────────────────────────────────────────────────── フロントページの続き (72)発明者 長塚 美波 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 (72)発明者 尾上 誠蔵 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 (56)参考文献 特開 平７−283772（ＪＰ，Ａ) 特開 平９−284828（ＪＰ，Ａ) 特開 平６−261362（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H04B 7/24 - 7/26 H04Q 7/00 - 7/38 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minami Nagatsuka 2-10-1 Toranomon, Minato-ku, Tokyo NTT Mobile Communication Network Co., Ltd. (72) Inventor Seizo Onoe Toranomon, Minato-ku, Tokyo 2-10-1 NTT Mobile Communication Network Co., Ltd. (56) Reference JP-A-7-283772 (JP, A) JP-A-9-284828 (JP, A) JP-A-6- 261362 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H04B 7/ 24-7/26 H04Q 7 /00-7/38
Claims (2)
御局および基地局制御局を含んだ移動通信システムにお
いて無線基地局の新設もしくは廃止を行う際に、 新設もしくは廃止する特定無線局において最大の受信レ
ベルを呈する止まり木チャネルの周辺無線基地局を判定
し、 前記新設もしくは廃止する特定無線局は、当該特定無線
局の使用周波数および位置情報を含む基地局新設情報も
しくは基地局廃止情報を、前記判定した周辺無線基地局
へ通知し、 前記通知を受けた前記周辺無線基地局では当該周辺無線
基地局が有する周辺ゾーン情報のデータベースを更新
し、且つ、当該周辺無線基地局を制御する既定の基地局
制御局を介して前記基地局新設情報もしくは前記基地局
廃止情報を当該移動通信システムに含まれている他の無
線基地局に通知し、 前記既定の基地局制御局は、前記基地局新設情報もしく
は前記基地局廃止情報を前記サービス制御局に通知する
ことにより当該サービス制御局が有する一斉呼び出しエ
リアテーブルを更新する、 ことを特徴とする無線ゾーン構成方法。1. When a radio base station is newly installed or abolished in a mobile communication system including a service control station and a base station control station, which stores the position information of the mobile station, the maximum number of specific radio stations to be newly established or abolished. The peripheral radio base station of the perch channel exhibiting the reception level is determined, and the specific radio station to be newly established or abolished, the base station new information or base station abolition information including the used frequency and position information of the particular radio station, Notifying the determined peripheral wireless base station, the peripheral wireless base station that has received the notification updates the database of peripheral zone information that the peripheral wireless base station has, and a default base that controls the peripheral wireless base station. The base station new installation information or the base station abolition information is transmitted to another radio base station included in the mobile communication system via the station control station. Notifying, the predetermined base station control station updates the paging area table of the service control station by notifying the service control station of the base station new information or the base station abolition information. Wireless zone configuration method.
おいて、 無線アクセス方式として符号分割多元接続方式を用いる
ことを特徴とする無線ゾーン構成方法。2. The wireless zone configuring method according to claim 1, wherein a code division multiple access method is used as a wireless access method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1585898A JP3385203B2 (en) | 1998-01-28 | 1998-01-28 | Wireless zone configuration method for mobile communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1585898A JP3385203B2 (en) | 1998-01-28 | 1998-01-28 | Wireless zone configuration method for mobile communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11215552A JPH11215552A (en) | 1999-08-06 |
| JP3385203B2 true JP3385203B2 (en) | 2003-03-10 |
Family
ID=11900511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1585898A Expired - Lifetime JP3385203B2 (en) | 1998-01-28 | 1998-01-28 | Wireless zone configuration method for mobile communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3385203B2 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6289220B1 (en) * | 2000-06-22 | 2001-09-11 | Motorola, Inc. | Multiple controller identities for neighbor lists |
| SG112814A1 (en) | 2000-11-13 | 2005-07-28 | Ntt Docomo Inc | Mobile communication system and distributed broadcast information control method in mobile communication system |
| US9888393B2 (en) | 2005-03-10 | 2018-02-06 | Qualocmm Incorporated | Method and apparatus for automatic configuration of wireless communication networks |
| JP4726060B2 (en) * | 2005-10-20 | 2011-07-20 | 株式会社エヌ・ティ・ティ・ドコモ | Base station apparatus and wireless communication parameter updating method |
| JP4751759B2 (en) | 2006-04-21 | 2011-08-17 | 株式会社エヌ・ティ・ティ・ドコモ | Base station and communication method |
| JP4913618B2 (en) * | 2007-02-02 | 2012-04-11 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system |
| JP5057888B2 (en) * | 2007-08-23 | 2012-10-24 | 学校法人立命館 | Training data collection method and mobile communication terminal position detection method using the same |
| JP5131018B2 (en) | 2008-05-07 | 2013-01-30 | 富士通株式会社 | Base station apparatus, neighboring cell information management program, and neighboring cell information management method |
| EP2337381B1 (en) * | 2008-10-09 | 2016-06-29 | Fujitsu Limited | Wireless base station, wireless network controller, and automatic networking method |
| CN102349323B (en) | 2009-03-13 | 2017-04-19 | 日本电气株式会社 | Wireless communication system, method, wireless base station, and control station |
| JP5257260B2 (en) * | 2009-06-18 | 2013-08-07 | 富士通株式会社 | Wireless communication system, base station device, terminal device, and communication link setting method in wireless communication system |
| JP5405409B2 (en) * | 2010-07-30 | 2014-02-05 | 株式会社Ｎｔｔドコモ | Mobile communication method, positioning device, and radio base station |
| CN102378246B (en) * | 2010-08-13 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of method and device managing adjacent relation between cells |
| JP2016046750A (en) | 2014-08-26 | 2016-04-04 | 富士通株式会社 | Control device, transmission power control method, and radio communication system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07283772A (en) * | 1992-10-07 | 1995-10-27 | Nippon Steel Corp | Method for establishing syncyronization between radio base stations and mobile communication systeem using the same |
| JPH06261362A (en) * | 1993-03-08 | 1994-09-16 | Hitachi Ltd | Radio base station extension control system |
| JP3397573B2 (en) * | 1996-04-10 | 2003-04-14 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication method |
-
1998
- 1998-01-28 JP JP1585898A patent/JP3385203B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11215552A (en) | 1999-08-06 |
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