JP2683794B2 - Wireless paging method - Google Patents
Wireless paging methodInfo
- Publication number
- JP2683794B2 JP2683794B2 JP63050804A JP5080488A JP2683794B2 JP 2683794 B2 JP2683794 B2 JP 2683794B2 JP 63050804 A JP63050804 A JP 63050804A JP 5080488 A JP5080488 A JP 5080488A JP 2683794 B2 JP2683794 B2 JP 2683794B2
- Authority
- JP
- Japan
- Prior art keywords
- channel
- service area
- radio
- reception
- radio paging
- 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
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は「ポケットベル」の名で知られる携帯無線機
を呼び出す無線呼出方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a radio calling system for calling a portable radio device known as "pager".
従来から、サービスエリア内を移動する個々の携帯局
を選択的に呼び出す無線呼出方式が利用されている。こ
のような無線呼出方式では、サービスエリア内に一以上
の基地局が配置され、この基地局が共通の無線チャネル
を用いて個々の携帯局を呼び出す。2. Description of the Related Art Conventionally, a radio paging system has been used in which individual mobile stations moving within a service area are selectively called. In such a radio paging system, one or more base stations are arranged in the service area, and the base stations call individual mobile stations using a common radio channel.
しかし、従来の無線呼出方式では、携帯局の受信でき
る無線チャネルが固定されており、携帯局がその属する
サービスエリア内に存在しているときには呼出可能であ
るが、他のサービスエリアに移動したときには呼出不能
となる欠点があった。However, in the conventional radio paging system, the radio channel that the mobile station can receive is fixed, and while the mobile station is within the service area to which it belongs, it can be called, but when it moves to another service area. There was a drawback that it could not be called.
本発明は、以上の問題点を解決し、携帯局が他のサー
ビスエリアに移動した場合にもその携帯局を呼び出すこ
とのできる無線呼出方式を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and provide a radio paging system capable of calling a mobile station even when the mobile station moves to another service area.
本発明の無線呼出方式は、受信チャネルを切り替え可
能な複数の携帯局と、サービスエリア内を移動する個々
の携帯局をそのサービスエリアに割り当てられた共通の
無線呼出チャネルを用いて選択的に呼び出す一以上の基
地局とを備え、基地局は隣接するサービスエリア間で互
いに異なる識別信号を送信する手段を含み、携帯局は、
識別信号を受信して自局が存在するサービスエリアに割
り当てられた無線呼出チャネルを識別する手段と、この
手段の出力により受信チャネルをそのサービスエリアに
割り当てられた無線呼出チャネルに切り替える手段とを
含む無線呼出方式において、識別信号を送信する手段
は、他のサービスエリアと共通でしかも無線呼出チャネ
ルとは別の共通無線チャネルを用いて、隣接するサービ
スエリア間で互いに異なるタイミングで送信する構成で
あり、携帯局は自分の受信チャネルを共通無線チャネル
に切り替える手段を含むことを特徴とする。According to the radio paging method of the present invention, a plurality of mobile stations capable of switching receiving channels and individual mobile stations moving within a service area are selectively called by using a common radio paging channel assigned to the service area. One or more base stations, the base stations include means for transmitting different identification signals between adjacent service areas, and the mobile station is
It includes means for receiving the identification signal and identifying the radio paging channel assigned to the service area in which the own station exists, and means for switching the reception channel to the radio paging channel assigned to the service area by the output of this means. In the radio paging system, the means for transmitting the identification signal is configured to transmit at a different timing between adjacent service areas by using a common radio channel that is common to other service areas and is different from the radio paging channel. , The mobile station includes means for switching its reception channel to a common radio channel.
携帯局は、無線呼出チャネルを間欠的に受信してその
受信電界強度を判断する手段と、この受信電界強度が基
準値以下となったときに共通無線チャネルに切り換える
手段を動作させる手段とを含むことが望ましい。The mobile station includes means for intermittently receiving the radio paging channel and determining the received electric field strength, and means for operating the means for switching to the common radio channel when the received electric field strength becomes equal to or lower than a reference value. Is desirable.
本発明の無線呼出方式は、複数のサービスエリアに共
通な無線チャネルを設定し、そこで報知される識別信号
をもとに、携帯局が受信チャネルを切り替える。すなわ
ち、携帯局がその受信周波数を切り替えて無線呼出信号
および識別信号を受信する。According to the radio paging method of the present invention, a radio channel common to a plurality of service areas is set, and the mobile station switches the reception channel based on the identification signal broadcast there. That is, the mobile station switches its reception frequency to receive the radio call signal and the identification signal.
受信電界強度が低下したときだけ識別信号を受信し、
識別信号の受信後に受信チャネルをそのサービスゾーン
の無線呼出チャネルに切り替える場合には、受信周波数
の切り替えるだけで呼出信号と識別信号とを受信でき
る。Receives the identification signal only when the received electric field strength decreases,
When the reception channel is switched to the radio paging channel of the service zone after receiving the identification signal, the paging signal and the identification signal can be received only by switching the reception frequency.
第１図は本発明実施例無線呼出方式のサービスエリア
配置を示す。ここでは、９個のサービスエリアで本発明
を実施した例を示す。FIG. 1 shows the service area arrangement of the radio paging system according to the embodiment of the present invention. Here, an example is shown in which the present invention is implemented in nine service areas.
個々のサービスエリア１−１〜１−９は、一以上の基
地局２による無線ゾーンの集合として構成される。個々
のサービスエリア１−１〜１−９では、すべての基地局
２が、その領域内を移動する個々の携帯局３を共通の無
線呼出チャネルを用いて選択的に呼び出す。The individual service areas 1-1 to 1-9 are configured as a set of wireless zones by one or more base stations 2. In the individual service areas 1-1 to 1-9, all the base stations 2 selectively call the individual mobile stations 3 moving within the area by using a common radio paging channel.
第２図は基地局２の要部を示すブロック構成図であ
る。FIG. 2 is a block diagram showing a main part of the base station 2.
基地局２は、同じサービスエリア内の他の基地局と共
通の無線呼出チャネルを用いて、そのサービスエリア内
を移動する個々の携帯局３を選択的に呼び出す呼出信号
送信部22と、他のサービスエリアと共通でしかも呼出信
号送信部22の使用する無線呼出チャネルとは周波数の異
なる無線チャネルを用いて、隣接するサービスエリア間
で互いにタイミングが異なる識別信号を送信する識別信
号送信部23と、呼出信号送信部22および識別信号送信部
23を制御する送信制御部21と備える。送信制御部21は、
上位装置を介して一般電話網に接続される。The base station 2 uses the radio paging channel common to other base stations in the same service area to selectively call the individual mobile stations 3 moving in the service area, and the other paging signal transmission unit 22. An identification signal transmission unit 23 that transmits identification signals having different timings between adjacent service areas by using a radio channel that is common to the service area and has a different frequency from the radio paging channel used by the call signal transmission unit 22, Ringing signal transmitter 22 and identification signal transmitter
A transmission control unit 21 for controlling 23 is provided. The transmission control unit 21
It is connected to the general telephone network via the host device.
第３図は、第１図に示したサービスエリア配置の場合
を例に、識別信号送信部23の送信タイミングを示す。FIG. 3 shows the transmission timing of the identification signal transmission unit 23, taking the case of the service area arrangement shown in FIG. 1 as an example.
ここで、サービスエリア１−１〜１−９のうち、互い
に連接していないものをグループとして分類し、サービ
スエリア１−１、１−６、１−７をグループＡ、サービ
スエリア１−２、１−４、１−８をグループＢ、サービ
スエリア１−３、１−５をグループＢ、サービスエリア
１−９をグループＤとする。Here, of the service areas 1-1 to 1-9, those which are not connected to each other are classified as a group, and the service areas 1-1, 1-6, and 1-7 are group A, the service area 1-2, 1-4 and 1-8 are group B, service areas 1-3 and 1-5 are group B, and service area 1-9 is group D.
同じグループのサービスエリアに配置された基地局２
の識別信号送信部23は、同じタイミングで識別信号を送
信する。すなわち、グループＡ、Ｂ、Ｃは、それぞれタ
イムスロットａ、ｂ、ｃに、同じ周波数の無線チャネル
を用いて識別信号を送信する。グループＤは他のサービ
スエリアに接していないので、他のグループと同じ無線
チャネルを用いるが、そのタイミングは任意である。Base station 2 located in the service area of the same group
The identification signal transmission unit 23 transmits the identification signal at the same timing. That is, the groups A, B, and C transmit the identification signals in the time slots a, b, and c, respectively, using the radio channels of the same frequency. Since the group D is not in contact with other service areas, it uses the same radio channel as the other groups, but its timing is arbitrary.
第４図は携帯局３の要部を示すブロック構成図であ
る。FIG. 4 is a block diagram showing a main part of the mobile station 3.
携帯局３は、受信チャネルの切替が可能な受信部31
と、この受信部31を制御する受信制御部32と、呼出信号
を受信したことをアラーム音その他で使用者に通知する
表示部33とを備える。受信制御部32は、基地局２からの
識別信号を受信して自局が存在するサービスエリアに割
り当てられた無線呼出チャネルを識別する手段と、この
手段の出力により受信部31を制御して、受信チャネルを
そのサービスエリアに割り当てられた無線呼出チャネル
に切り替える手段とを含み、さらに、この切り替える手
段として、無線呼出チャネルを間欠的に受信してその受
信電界強度を判断する手段と、この受信電界強度が基準
値以下となったときに受信部31を制御して受信チャネル
を識別信号受信用のチャネルに切り替える手段と、この
チャネルで受信した識別信号により受信部31の受信チャ
ネルをそのサービスエリアの無線呼出チャネルに切り替
える手段とを含む。The mobile station 3 includes a reception unit 31 capable of switching the reception channel.
And a reception control unit 32 for controlling the reception unit 31, and a display unit 33 for notifying the user that an incoming call signal has been received with an alarm sound or the like. The reception control unit 32 receives the identification signal from the base station 2 and identifies the radio paging channel assigned to the service area in which the own station exists, and controls the reception unit 31 by the output of this unit, Means for switching the reception channel to the radio paging channel assigned to the service area, and further, as the switching means, means for intermittently receiving the radio paging channel to judge the reception electric field strength, and the reception electric field. A means for controlling the receiving unit 31 to switch the receiving channel to the channel for receiving the identification signal when the intensity becomes equal to or lower than the reference value, and the receiving channel of the receiving unit 31 of the service area according to the identification signal received by this channel. Means for switching to the radio paging channel.
第５図は受信制御部32による制御の流れを示す図であ
る。FIG. 5 is a diagram showing a flow of control by the reception control unit 32.
通常の受信状態では、受信部31は間欠受信を行う。携
帯局３がサービスエリアの端に移動し、受信電界が一定
時間以上規定レベル以下に低下したときには、受信部31
の受信周波数を識別信号受信用のチャネルに切り替え、
間欠受信を中止して識別信号を受信する。この識別信号
を受信すると、その識別信号に応じて受信部31の受信チ
ャネルを切り替え、再び間欠受信を行う。識別信号受信
時の受信電界が規定レベル以下のときには、圏外表示を
行い、どのサービスエリアからも外れていることを示
す。In the normal reception state, the reception unit 31 performs discontinuous reception. When the mobile station 3 moves to the edge of the service area and the received electric field drops below a prescribed level for a certain period of time, the receiving unit 31
Switch the reception frequency of to the channel for receiving the identification signal,
The intermittent reception is stopped and the identification signal is received. When this identification signal is received, the reception channel of the receiving unit 31 is switched according to the identification signal, and intermittent reception is performed again. When the received electric field at the time of receiving the identification signal is below the specified level, the out-of-service area is displayed to indicate that the service area is out of any service area.
第６図は携帯局がサービスエリアを移動した場合のチ
ャネル切替の例を示す。FIG. 6 shows an example of channel switching when the mobile station moves in the service area.
初め、携帯局３がサービスエリア「Ａ」でチャネル
「１」を受信しているものとする。この携帯局がサービ
スエリア「Ｂ」に向かって移動すると、次第にチャネル
「１」の受信電界が低下する。このとき携帯局３は、受
信チャネルを識別信号受信用のチャネル「０」に切り替
える。このチャネル「０」で識別信号を受信すると、サ
ービスエリア「Ｃ」でその携帯局に割り当てられている
チャネル「８」に受信周波数を切り替える。サービスエ
リア「Ｂ」からサービスエリア「Ｃ」に移動する場合に
も同様である。First, it is assumed that the mobile station 3 is receiving the channel "1" in the service area "A". When this mobile station moves toward the service area "B", the reception electric field of the channel "1" gradually decreases. At this time, the mobile station 3 switches the reception channel to the channel "0" for receiving the identification signal. When the identification signal is received on the channel "0", the reception frequency is switched to the channel "8" assigned to the mobile station in the service area "C". The same applies when moving from the service area "B" to the service area "C".
以上説明したように、本発明の無線呼出方式は、携帯
局が受信チャネルを切り替えることにより、複数のサー
ビスエリアにわたり移動する携帯局を呼び出すことがで
きる。したがって、広域にわたる無線呼出が可能となる
効果がある。As described above, the radio paging system of the present invention can call a mobile station that moves over a plurality of service areas by the mobile station switching the reception channel. Therefore, there is an effect that it is possible to make a wireless call over a wide area.
第１図は本発明実施例無線呼出方式のサービスエリア配
置を示す図。 第２図は基地局の要部ブロック構成図。 第３図は識別信号の送信タイミングを示す図。 第４図は携帯局の要部ブロック構成図。 第５図は受信制御部の制御の流れを示す図。 第６図は携帯局がサービスエリアを移動した場合のチャ
ネル切替の例を示す図。 １−１〜１−９……サービスエリア、２……基地局、３
……携帯局、21……送信制御部、22……呼出信号送信
部、23……識別信号送信部、31……受信部、32……受信
制御部、33……表示部。FIG. 1 is a diagram showing a service area arrangement of a radio paging system according to an embodiment of the present invention. FIG. 2 is a block diagram of the main part of the base station. FIG. 3 is a diagram showing the transmission timing of the identification signal. FIG. 4 is a block diagram of a main part of the mobile station. FIG. 5 is a diagram showing a control flow of the reception control unit. FIG. 6 is a diagram showing an example of channel switching when a mobile station moves in a service area. 1-1 to 1-9 ... Service area, 2 ... Base station, 3
...... Mobile station, 21 ...... Transmission control section, 22 ...... Call signal transmission section, 23 ...... Identification signal transmission section, 31 ...... Reception section, 32 ...... Reception control section, 33 ...... Display section.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 生越 重章 東京都千代田区内幸町１丁目１番６号 日本電信電話株式会社内 (56)参考文献 特開 昭59−27634（ＪＰ，Ａ) 特開 昭59−36444（ＪＰ，Ａ) 特開 昭59−174032（ＪＰ，Ａ) 特公 昭48−39843（ＪＰ，Ｂ１) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeaki Ogoshi 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) Reference JP-A-59-27634 (JP, A) Kai 59-36444 (JP, A) JP 59-174032 (JP, A) JP 48-39843 (JP, B1)
Claims (1)
局と、サービスエリア内を移動する個々の携帯局をその
サービスエリアに割り当てられた共通の無線呼出チャネ
ルを用いて選択的に呼び出す一以上の基地局とを備え、 上記基地局は隣接するサービスエリア間で互いに異なる
識別信号を送信する手段を含み、 上記携帯局は、上記識別信号を受信して自局が存在する
サービスエリアに割り当てられた無線呼出チャネルを識
別する手段と、この手段の出力により受信チャネルをそ
のサービスエリアに割り当てられた無線呼出チャネルに
切り替える手段とを含む 無線呼出方式において、 上記識別信号を送信する手段は、他のサービスエリアと
共通でしかも上記無線呼出チャネルとは別の共通無線チ
ャネルを用いて、隣接するサービスエリア間で互いに異
なるタイミングで送信する構成であり、 上記携帯局は自分の受信チャネルを上記共通無線チャネ
ルに切り替える手段を含む ことを特徴とする無線呼出方式。1. A plurality of mobile stations capable of switching reception channels and one or more mobile stations that selectively move each mobile station moving within a service area by using a common radio paging channel assigned to the service area. A base station, the base station includes means for transmitting different identification signals between adjacent service areas, and the mobile station receives the identification signal and is assigned to a service area in which the own station exists. In a radio paging system including means for identifying a radio paging channel and means for switching a reception channel to a radio paging channel assigned to the service area by the output of this means, the means for transmitting the identification signal is the other service. Between adjacent service areas by using a common radio channel that is common with the area and is different from the above radio paging channel. In the radio calling system, the mobile station includes means for switching its own reception channel to the common radio channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63050804A JP2683794B2 (en) | 1988-03-04 | 1988-03-04 | Wireless paging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63050804A JP2683794B2 (en) | 1988-03-04 | 1988-03-04 | Wireless paging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01225237A JPH01225237A (en) | 1989-09-08 |
| JP2683794B2 true JP2683794B2 (en) | 1997-12-03 |
Family
ID=12868960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63050804A Expired - Lifetime JP2683794B2 (en) | 1988-03-04 | 1988-03-04 | Wireless paging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2683794B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6993333B2 (en) * | 2003-10-16 | 2006-01-31 | Flarion Technologies, Inc. | Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2153698A5 (en) * | 1971-09-21 | 1973-05-04 | Roulements Soc Nouvelle | |
| JPS5927634A (en) * | 1982-08-05 | 1984-02-14 | Nippon Telegr & Teleph Corp <Ntt> | Wide range mobile radio calling system |
| JPS5936444A (en) * | 1982-08-24 | 1984-02-28 | Matsushita Electric Ind Co Ltd | State display system of radio device |
-
1988
- 1988-03-04 JP JP63050804A patent/JP2683794B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01225237A (en) | 1989-09-08 |
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