JPH1023514A - Mobile communication controller - Google Patents
Mobile communication controllerInfo
- Publication number
- JPH1023514A JPH1023514A JP8174713A JP17471396A JPH1023514A JP H1023514 A JPH1023514 A JP H1023514A JP 8174713 A JP8174713 A JP 8174713A JP 17471396 A JP17471396 A JP 17471396A JP H1023514 A JPH1023514 A JP H1023514A
- Authority
- JP
- Japan
- Prior art keywords
- radio
- station
- mobile
- mobile communication
- service area
- 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.)
- Withdrawn
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、携帯電話や自動車
電話等の陸上移動通信における各基地局の送信電力を制
御する移動通信制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication control device for controlling the transmission power of each base station in land mobile communication such as a mobile phone and a car phone.
【0002】[0002]
【従来の技術】近年、陸上移動通信に対する需要が著し
く増大し、限られた周波数帯域の中で最大限の移動局
(携帯電話や自動車電話等)を扱う必要がある。このた
め現在は1つのサービスエリアを複数の小さな無線ゾー
ンでカバーする小ゾーン方式が採用されている。小ゾー
ン方式は同じ周波数を別のゾーンで再利用できるので、
全体として多数の移動局を扱うことができる。2. Description of the Related Art In recent years, the demand for land mobile communication has increased remarkably, and it is necessary to handle the maximum number of mobile stations (such as mobile phones and car phones) within a limited frequency band. For this reason, a small zone system in which one service area is covered by a plurality of small wireless zones is currently employed. In the small zone method, the same frequency can be reused in another zone,
A large number of mobile stations can be handled as a whole.
【0003】図2は、このような小ゾーン方式を用いた
移動通信システムの概略構成図で、無線制御局1を中心
に複数の基地局2a,2b,…,2fが配置されてい
る。各基地局2a〜2fの無線送信電力は同じ大きさの
ため、各基地局2a〜2fはそれぞれ同一の大きさの無
線ゾーン3a,3b,…,3fを有している。なお、無
線ゾーンとは、基地局からの電界レベルがある一定値以
上で、移動局が通信可能な範囲をいう。FIG. 2 is a schematic configuration diagram of a mobile communication system using such a small zone system, in which a plurality of base stations 2a, 2b,... Since the radio transmission power of each of the base stations 2a to 2f is the same, each of the base stations 2a to 2f has a radio zone 3a, 3b,..., 3f of the same size. Note that the wireless zone refers to a range in which the mobile station can communicate when the electric field level from the base station is equal to or higher than a certain value.
【0004】この例では、移動局4aが無線ゾーン3a
内に、移動局4bが無線ゾーン3b内に、移動局4cが
無線ゾーン3b外に、移動局4dが無線ゾーン3a外
に、移動局4eが無線ゾーン3f内に、それぞれ存在す
る状態を示している。[0004] In this example, the mobile station 4a is connected to the radio zone 3a.
, The mobile station 4b is within the wireless zone 3b, the mobile station 4c is outside the wireless zone 3b, the mobile station 4d is outside the wireless zone 3a, and the mobile station 4e is within the wireless zone 3f. I have.
【0005】[0005]
【発明が解決しようとする課題】前述した従来例では、
移動局がある特定の地域に集中しても、予め設定された
無線ゾーンの大きさを変化させることができないといっ
た不都合が生じる。In the above-mentioned conventional example,
Even if the mobile station concentrates in a specific area, a disadvantage arises in that the size of the preset wireless zone cannot be changed.
【0006】また、基地局の設置は都市部を中心とした
一部の地域に限られており、人口カバー率は高いもの
の、地域カバー率はそれほど高くない。このため、サー
ビスエリアの境界に位置する無線ゾーン内の移動局は、
通話中に容易にサービスエリアから逸脱してしまい、通
話が途切れてしまうといった不都合が生じる。[0006] The installation of base stations is limited to some areas mainly in urban areas, and although the population coverage is high, the area coverage is not so high. For this reason, mobile stations in the wireless zone located at the border of the service area,
The inconvenience of easily deviating from the service area during a call and interrupting the call occurs.
【0007】本発明は、このような従来の課題を解決す
るためになされたもので、移動局の移動状況に合わせて
各基地局の無線ゾーンを構成することを目的とする。The present invention has been made to solve such a conventional problem, and has as its object to configure a wireless zone of each base station in accordance with the movement state of a mobile station.
【0008】[0008]
【課題を解決するための手段】本発明の移動通信制御装
置においては、複数の基地局の無線ゾーンでサービスエ
リアを構成し、移動局が位置する無線ゾーンの基地局を
介して無線通信を行う移動通信システムにおいて、サー
ビスエリアを管理する無線制御局によって各基地局の無
線送信電力を制御し、各基地局の無線ゾーンの大きさを
個別に変化させることによってサービスエリアの構成パ
ターンを変化させるものである。According to the mobile communication control device of the present invention, a service area is formed by a plurality of base stations in radio zones, and radio communication is performed via the base stations in the radio zone in which the mobile stations are located. In a mobile communication system, a radio control station that manages a service area controls radio transmission power of each base station, and changes the configuration pattern of the service area by individually changing the size of the radio zone of each base station. It is.
【0009】本発明によれば、移動局の移動状況に合わ
せて各基地局の無線ゾーンを構成することができる。According to the present invention, the radio zone of each base station can be configured in accordance with the moving situation of the mobile station.
【0010】[0010]
【発明の実施の形態】本発明の請求項1に記載の発明
は、複数の基地局の無線ゾーンでサービスエリアを構成
し、移動局が位置する無線ゾーンの基地局を介して無線
通信を行う移動通信システムにおいて、サービスエリア
を管理する無線制御局によって各基地局の無線送信電力
を制御し、各基地局の無線ゾーンの大きさを個別に変化
させることによってサービスエリアの構成パターンを変
化させるもので、複数の基地局の無線送信電力を個別に
制御することによってサービスエリアの構成パターンを
変化させることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, a service area is constituted by a plurality of base station radio zones, and radio communication is performed via a base station in a radio zone where a mobile station is located. In a mobile communication system, a radio control station that manages a service area controls radio transmission power of each base station, and changes the configuration pattern of the service area by individually changing the size of the radio zone of each base station. Thus, the configuration pattern of the service area can be changed by individually controlling the radio transmission power of a plurality of base stations.
【0011】請求項2に記載の発明は、請求項1に記載
の発明において、無線制御局による各基地局の無線送信
電力の制御は、サービスエリア内の移動局の位置情報に
基づいて行うもので、移動局の移動状況に合わせて各基
地局の無線ゾーンを構成することができる。According to a second aspect of the present invention, in the first aspect of the present invention, the control of the radio transmission power of each base station by the radio control station is performed based on position information of the mobile station in the service area. Thus, the wireless zone of each base station can be configured according to the movement status of the mobile station.
【0012】請求項3に記載の発明は、請求項1に記載
の発明において、無線制御局による各基地局の無線送信
電力の制御は、予め設定した条件に基づいて行うもの
で、例えば時間帯によって移動局の移動状況が異なる場
合に、時間帯に合わせて各基地局の無線ゾーンを構成す
ることができる。According to a third aspect of the present invention, in the first aspect of the invention, the control of the radio transmission power of each base station by the radio control station is performed based on preset conditions. When the moving conditions of the mobile station are different, the wireless zone of each base station can be configured according to the time zone.
【0013】以下、本発明の一実施の形態について、図
1を用いて説明する。図1は、本発明の一実施の形態に
よる移動通信制御装置を適用した移動通信システムの概
略図で、無線制御局1は複数の基地局2a〜2fの無線
送信電力を制御し、各基地局2a〜2fの無線ゾーン3
a〜3fの大きさを変化させることが出来るように構成
されている。Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic diagram of a mobile communication system to which a mobile communication control apparatus according to an embodiment of the present invention is applied. A radio control station 1 controls radio transmission power of a plurality of base stations 2a to 2f, Wireless zone 3 of 2a to 2f
It is configured so that the sizes of a to 3f can be changed.
【0014】この構成において、無線制御局1の制御に
よって基地局2a,2b,2cの無線送信電力を大きく
して無線ゾーン3a,3b,3cを拡大し、基地局2
d,2e,2fの無線送信電力を小さくして無線ゾーン
3d,3e,3fを縮小し、サービスエリアを構成する
無線ゾーンの大きさを変化させると、無線ゾーン3b外
に存在していた移動局4cが無線ゾーン3b内に入り、
無線ゾーン3a外に存在していた移動局4dが無線ゾー
ン3aまたは3c内に入り、それぞれサービスエリア内
に存在することになる。In this configuration, the radio transmission power of the base stations 2a, 2b, 2c is increased by the control of the radio control station 1 to expand the radio zones 3a, 3b, 3c, and the base station 2
When the wireless transmission power of d, 2e, 2f is reduced to reduce the size of the wireless zone 3d, 3e, 3f and the size of the wireless zone constituting the service area is changed, the mobile station existing outside the wireless zone 3b 4c enters the wireless zone 3b,
The mobile station 4d existing outside the wireless zone 3a enters the wireless zone 3a or 3c, and respectively exists in the service area.
【0015】このようなサービスエリアの構成パターン
の変化(各無線ゾーンの大きさの変化)は、前述したよ
うに移動局の移動状況に応じて変化させるほかに、移動
局の移動状況を予め考慮して変化させるようにしてもよ
い。この場合、時間帯によって移動局の移動状況が異な
る場合を考慮して周期的に変化させるようにしてもよ
い。Such a change in the configuration pattern of the service area (a change in the size of each wireless zone) not only changes according to the movement state of the mobile station as described above, but also considers the movement state of the mobile station in advance. Alternatively, it may be changed. In this case, the period may be changed periodically in consideration of the case where the moving state of the mobile station differs depending on the time zone.
【0016】[0016]
【発明の効果】本発明によれば、サービスエリア内の各
基地局の無線送信電力を、各基地局毎に変化させること
ができるので、移動局の移動状況に応じて各無線ゾーン
の大きさを変化させることができる。According to the present invention, the radio transmission power of each base station in the service area can be changed for each base station, so that the size of each radio zone can be changed according to the moving situation of the mobile station. Can be changed.
【図1】本発明による移動通信制御装置が適用される移
動通信システムの概略構成図FIG. 1 is a schematic configuration diagram of a mobile communication system to which a mobile communication control device according to the present invention is applied;
【図2】従来の移動通信システムの概略構成図FIG. 2 is a schematic configuration diagram of a conventional mobile communication system.
1 無線制御局 2a〜2f 基地局 3a〜3f 無線ゾーン 4a〜4e 移動局 1 Radio Control Station 2a-2f Base Station 3a-3f Radio Zone 4a-4e Mobile Station
Claims (3)
リアを構成し、移動局が位置する無線ゾーンの基地局を
介して無線通信を行う移動通信システムにおいて、 前記サービスエリアを管理する無線制御局によって前記
各基地局の無線送信電力を制御し、前記各基地局の無線
ゾーンの大きさを個別に変化させることによって前記サ
ービスエリアの構成パターンを変化させることを特徴と
する移動通信制御装置。1. A mobile communication system in which a service area is configured by wireless zones of a plurality of base stations and wireless communication is performed via a base station in a wireless zone where a mobile station is located, a radio control station managing the service area A mobile communication control device for controlling the radio transmission power of each of the base stations and individually changing the size of the radio zone of each of the base stations to change the configuration pattern of the service area.
力の制御は、サービスエリア内の移動局の位置情報に基
づいて行うことを特徴とする請求項1記載の移動通信制
御装置。2. The mobile communication control device according to claim 1, wherein the control of the radio transmission power of each base station by the radio control station is performed based on position information of the mobile station in the service area.
力の制御は、予め設定した条件に基づいて行うことを特
徴とする請求項1記載の移動通信制御装置。3. The mobile communication control device according to claim 1, wherein the control of the radio transmission power of each base station by the radio control station is performed based on preset conditions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8174713A JPH1023514A (en) | 1996-07-04 | 1996-07-04 | Mobile communication controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8174713A JPH1023514A (en) | 1996-07-04 | 1996-07-04 | Mobile communication controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH1023514A true JPH1023514A (en) | 1998-01-23 |
Family
ID=15983355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8174713A Withdrawn JPH1023514A (en) | 1996-07-04 | 1996-07-04 | Mobile communication controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH1023514A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7305247B2 (en) | 2000-09-29 | 2007-12-04 | Ntt Docomo, Inc. | Cell control method and cell system |
JP2008079103A (en) * | 2006-09-22 | 2008-04-03 | Casio Comput Co Ltd | Wireless lan control device and program |
JP2008079109A (en) * | 2006-09-22 | 2008-04-03 | Casio Comput Co Ltd | Wireless lan control apparatus and program |
-
1996
- 1996-07-04 JP JP8174713A patent/JPH1023514A/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7305247B2 (en) | 2000-09-29 | 2007-12-04 | Ntt Docomo, Inc. | Cell control method and cell system |
JP2008079103A (en) * | 2006-09-22 | 2008-04-03 | Casio Comput Co Ltd | Wireless lan control device and program |
JP2008079109A (en) * | 2006-09-22 | 2008-04-03 | Casio Comput Co Ltd | Wireless lan control apparatus and program |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20040715 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040806 |