JP2933536B2 - Wireless communication system - Google Patents
Wireless communication systemInfo
- Publication number
- JP2933536B2 JP2933536B2 JP16257896A JP16257896A JP2933536B2 JP 2933536 B2 JP2933536 B2 JP 2933536B2 JP 16257896 A JP16257896 A JP 16257896A JP 16257896 A JP16257896 A JP 16257896A JP 2933536 B2 JP2933536 B2 JP 2933536B2
- Authority
- JP
- Japan
- Prior art keywords
- incoming call
- base station
- radio base
- communication system
- station
- 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 - Fee Related
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、移動体通信システ
ムの無線基地局から移動機への着信呼出しに関し、特に
無線基地局からの着信呼出しの再送方法と無線基地局内
のリソース確保に関する。The present invention relates to an incoming call from a radio base station to a mobile station in a mobile communication system, and more particularly to a method for retransmitting an incoming call from a radio base station and securing resources in the radio base station.
【０００２】[0002]
【従来の技術】従来の無線基地局は、移動機へ着信呼出
しを行う場合、移動機がエリア内に存在するかどうかを
移動機からの応答により確認するが、着信呼出し信号を
送信しても、移動機がエリア内に存在しなかったり、信
号の減衰やノイズの混入、移動機の電源遮断などにより
着信応答が返ってこないことが考えられるため、発信時
にタイマをかけ、所定時間内に移動機から応答がなけれ
ば、タイムオーバーとなり、再送を行う仕組みを有す
る。そして、着信呼出しを所定回数行っても応答がなけ
れば、再送回数がオーバーし、移動機がこの基地局のエ
リアに存在しないものとみなして着信呼出し処理を終了
する。2. Description of the Related Art A conventional radio base station confirms whether or not a mobile station is within an area by a response from the mobile station when making an incoming call to the mobile station. The mobile device may not be in the area, or the incoming call may not be returned due to signal attenuation or noise contamination, or the power to the mobile device may be interrupted. If there is no response from the device, the time is over and there is a mechanism to perform retransmission. If there is no response even if the incoming call is made a predetermined number of times, the number of retransmissions is exceeded, and it is assumed that the mobile station does not exist in the area of the base station, and the incoming call processing is terminated.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上述した従来
の再送方法で無線基地局から移動機からの応答を確認し
ようとしても、移動機がエリア外にある場合や、信号の
減衰やノイズの混入がある場合、又は移動機の電源が遮
断されている場合等には、無線基地局から再送を行って
も応答が返ってこない可能性が高く、その場合には再送
回数がオーバーするまで無線基地局は必要な回線を維持
したままとなる。すると、無線基地局から着信呼出しが
増加した場合呼出し回線が不足し、それ以上の着信呼出
しをできなくなってしまい、通信チャネルを効率的に使
えないという問題点があった。However, even if an attempt is made to confirm the response from the mobile station from the radio base station by the above-mentioned conventional retransmission method, the mobile station is out of the area, signal attenuation or noise contamination. If there is, or the power of the mobile station is shut off, there is a high possibility that a response will not be returned even if retransmission is performed from the radio base station. The station remains on the required line. Then, when the number of incoming calls from the wireless base station increases, the calling line becomes insufficient, and further incoming calls cannot be made, and there is a problem that the communication channel cannot be used efficiently.
【０００４】本発明では、複数の着信呼出しを同時に行
なっているときでも着信呼出しが行なえ、通信チャンネ
ルを有効に使用できるようにすることを目的とする。[0004] It is an object of the present invention to enable an incoming call to be made even when a plurality of incoming calls are being made at the same time, so that a communication channel can be used effectively.
【０００５】[0005]
【課題を解決するための手段】本発明の無線通信システ
ムは、着信呼出要求を行っている数に応じて、着信呼出
しの再送回数を変化させる機能を無線基地局に備え、無
線基地局が処理する着信呼出しの数に余裕があるとき
は、予め定められた回数の再送を行う。そして、呼出し
の数が増加した場合には、着信呼出しの再送回数を減少
させて、１つの着信呼出しにかかる回線維持時間を短く
し、接続できない回線を早く開放して他の移動機の着信
呼出要求に対する着信呼出しに用いる。The radio communication system according to the present invention has a function of changing the number of retransmissions of an incoming call in accordance with the number of incoming call requests in the radio base station. If there is room for the number of incoming calls to be made, retransmission is performed a predetermined number of times. When the number of calls increases, the number of retransmissions of the incoming call is reduced, the line maintenance time for one incoming call is shortened, the line that cannot be connected is quickly released, and the incoming call of another mobile station is released. Used for incoming calls to requests.
【０００６】これにより、通常は十分な再送を行ない確
実に通信の接続を図るとともに、呼出し要求が増加した
場合には、呼出回線の占有率を低くし、他の着信呼出し
を速やかに行うことができ、通話回線を有効に利用でき
る。そして、着信呼出し要求の数が減少してきたなら再
送回数を所定値に戻し、着信呼出しを確実にすることが
できる。[0006] Thus, it is possible to normally perform sufficient retransmission to reliably establish a communication connection, and to reduce the occupation rate of the calling line and quickly perform another incoming call when the number of call requests increases. Yes, you can use the telephone line effectively. Then, if the number of incoming call requests decreases, the number of retransmissions can be returned to a predetermined value to ensure incoming call.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態について説明
する。Embodiments of the present invention will be described.
【０００８】図１に、本発明にかかる無線通信システム
の構成を示すブロック図を示す。FIG. 1 is a block diagram showing a configuration of a wireless communication system according to the present invention.
【０００９】図１において、無線通信システムは、無線
基地局２と、無線基地局２と無線で通信される移動機４
と、無線基地局２に有線回線で接続された交換局３０等
から構成されている。In FIG. 1, a radio communication system includes a radio base station 2 and a mobile station 4 which communicates with the radio base station 2 by radio.
And an exchange 30 connected to the wireless base station 2 by a wired line.
【００１０】無線基地局２は、移動機４と通信する無線
部６と、制御部８と、交換局３０に接続する回線制御部
１０と、再送回数変更手段１２と、着信呼出し手段１４
等から構成されている。The radio base station 2 includes a radio unit 6 for communicating with the mobile unit 4, a control unit 8, a line control unit 10 connected to the switching center 30, a retransmission number changing unit 12, and an incoming call unit 14.
And so on.
【００１１】移動機４は、無線基地局２と無線で通信す
る無線部２２と、ダイヤルデータ等を入力する操作部２
４と、ダイヤルデータや着信を知らせる表示部２４等か
ら構成されている。移動機４と無線基地局２は無線基地
局２のエリア内でそれぞれの無線部６と無線部２２によ
って無線通信を行い、無線基地局２と交換局３０更にそ
の上位の交換局とは有線回線で接続され、有線回線によ
って通信を行なう。The mobile unit 4 includes a radio unit 22 for communicating with the radio base station 2 by radio, and an operation unit 2 for inputting dial data and the like.
4 and a display unit 24 for notifying dial data and incoming calls. The mobile unit 4 and the radio base station 2 perform radio communication with each other in the area of the radio base station 2 by the radio unit 6 and the radio unit 22, and the radio base station 2 and the exchange 30 and a higher-order exchange are connected to a wired line. And perform communication by a wired line.
【００１２】着信呼出し手段１４は、交換局３０から着
信要求があると、エリア内の移動機４に対し着信呼出し
を行う。無線基地局２による着信呼出しは、要求があっ
た移動機４の呼出しを行ない、移動局４からの応答を待
ち、移動局４から応答があれば、空の回線を探して接続
し、通話を開始させる一方、所定時間内に移動局４から
応答がない場合は着信呼出しの再送を行ない、その再送
は再送回数変更手段１２によって定められた再送回数分
の再度着信呼出しを行なう。再送回数変更手段１２は、
無線基地局４における着信呼出し要求の数を計測し、着
信呼出し要求の数が所定値以上であると判断すると着信
呼出し手段１４が行なう再送数を減少させる。[0012] When there is an incoming call request from the exchange 30, the incoming call means 14 makes an incoming call to the mobile station 4 in the area. In the incoming call by the radio base station 2, a call is made to the requested mobile station 4 and a response from the mobile station 4 is waited. If there is a response from the mobile station 4, an empty line is searched for connection, and a call is made. On the other hand, if there is no response from the mobile station 4 within a predetermined time, the incoming call is retransmitted, and the retransmission is repeated for the number of retransmissions determined by the retransmission number changing means 12. The retransmission number changing means 12
The number of incoming call requests in the radio base station 4 is measured, and when it is determined that the number of incoming call requests is equal to or greater than a predetermined value, the number of retransmissions performed by the incoming call means 14 is reduced.
【００１３】次に、無線基地局２から移動機４に対して
着信呼出しを行う場合の動作について、図２のフローチ
ャートを用いて説明する。Next, the operation when the incoming call is made from the radio base station 2 to the mobile station 4 will be described with reference to the flowchart of FIG.
【００１４】図２は、着信呼出し要求をうけてからその
メッセージを移動機４に送信するまでの無線基地局２の
フローチャートである。無線基地局２は、上位局から着
信呼出し要求を受信すると（Ｆ−１）現在行なわれてい
る着信呼出要求数を計測し、着信呼出し要求の数により
着信呼出しに必要なリソースがどれくらい保持されてい
るかを調べ（Ｆ−２）、リソース（回線）占有率のしき
い値と比較する（Ｆ−３）。リソース占有率がしきい値
以下であれば通常の再送回数（例えば１〜３秒間隔で３
回とする。（再送間隔は予め設定しておく））に設定
し、あるいは復帰させ（Ｆ−４）、着信呼出しを送信す
る（Ｆ−６）。一方着信呼出し要求数がしきい値を越え
た場合は再送回数を削減し（例えば２回とする。）（Ｆ
−５）、呼出数を０として（Ｆ−６）、着信呼出信号を
送信する（Ｆ−７）。FIG. 2 is a flowchart of the operation of the radio base station 2 from receiving an incoming call request to transmitting the message to the mobile station 4. Upon receiving the incoming call request from the upper station, the radio base station 2 measures the number of incoming call requests currently being performed (F-1), and determines how many resources required for incoming call are held based on the number of incoming call requests. Is checked (F-2) and compared with the threshold value of the resource (line) occupancy (F-3). If the resource occupancy is less than or equal to the threshold, the normal number of retransmissions (for example, 3
Times. (The retransmission interval is set in advance)) or is restored (F-4), and an incoming call is transmitted (F-6). On the other hand, if the number of incoming call requests exceeds the threshold value, the number of retransmissions is reduced (for example, two) (F).
-5) The number of calls is set to 0 (F-6), and an incoming call signal is transmitted (F-7).
【００１５】着信呼出信号を送信すると呼出数に１を加
え（Ｆ−８）、同時にタイマを始動させ（Ｆ−９）、時
間を計測する。所定時間以内に移動機４から応答があっ
た場合はその移動機４の回線を接続する（Ｆ−１２）。
一方、移動機４から応答がないまま所定時間経過した場
合は、呼出数と再送回数を比較し（Ｆ−１１）、呼出数
が再送回数を越えていなければ、ステップ（Ｆ−７）に
戻り、そして、再び着信呼出送信を行なう。着信呼出し
を繰り返し行ない、呼出数が再送回数を越えたなら（Ｆ
−１１）、着信呼出しの再送を終了させ（Ｆ−１４）回
線を開放して、ステップ（Ｆ−１）に戻る。When the incoming call signal is transmitted, 1 is added to the number of calls (F-8), and at the same time, a timer is started (F-9) and the time is measured. If there is a response from the mobile device 4 within a predetermined time, the line of the mobile device 4 is connected (F-12).
On the other hand, if the predetermined time has elapsed without a response from the mobile station 4, the number of calls and the number of retransmissions are compared (F-11). If the number of calls does not exceed the number of retransmissions, the process returns to step (F-7). Then, the incoming call is transmitted again. If an incoming call is repeated and the number of calls exceeds the number of retransmissions (F
-11), the retransmission of the incoming call is terminated (F-14), the line is released, and the process returns to step (F-1).
【００１６】したがって、着信呼出要求が増加し、無線
基地局２における着信呼出しの回線占有率がしきい値を
越えた場合には無線基地局２で行なわれる再送回数が減
少されるので、他の着信呼出しに必要な回線が確保さ
れ、効率よく複数の移動局への着信呼出しを行なわせる
ことができ、呼出し回線の不足による着信不能を防止す
ることができる。Accordingly, when the number of incoming call requests increases and the line occupancy of the incoming call in the radio base station 2 exceeds the threshold value, the number of retransmissions performed in the radio base station 2 is reduced. Lines necessary for incoming calls are secured, incoming calls can be efficiently made to a plurality of mobile stations, and incoming calls due to shortage of the incoming lines can be prevented.
【００１７】[0017]
【発明の効果】本発明の無線通信システムによれば、着
信呼出し要求の数に応じて着信呼出し要求の再送回数を
変化させることとしたので、着信呼出し要求の数が多い
場合に呼出し回線の開放が早まり、呼出し回線の節約が
可能となり、また、上位局からの着信呼出し要求に対
し、無線基地局の呼出し回線不足が原因でメッセージが
送信できないという事態を防ぐことができ、無線基地局
と移動機との回線接続率を向上できる。According to the radio communication system of the present invention, the number of retransmissions of an incoming call request is changed according to the number of incoming call requests, so that the calling line is released when the number of incoming call requests is large. Can reduce the number of calling lines, and prevent a situation in which a message cannot be transmitted due to a shortage of the calling line of the radio base station in response to an incoming call request from a higher-level station. Line connection rate with the machine can be improved.
【図１】本発明の無線通信システムの一実施例を示すブ
ロック図である。FIG. 1 is a block diagram showing one embodiment of a wireless communication system of the present invention.
【図２】本発明の無線通信システムの作動を示すフロー
チャートである。FIG. 2 is a flowchart showing the operation of the wireless communication system of the present invention.
２ 無線基地局 ４ 移動局 ６ 無線部 ８ 制御部 １０ 回線制御部 １２ 再送回数変更手段 １４ 着信呼出手段 ２２ 無線部 ２４ 操作部 ２６ 表示部 ３０ 交換部 2 Radio base station 4 Mobile station 6 Radio section 8 Control section 10 Line control section 12 Retransmission number changing section 14 Incoming call section 22 Radio section 24 Operation section 26 Display section 30 Switching section
Claims (2)
無線により通信を行なう複数の移動機が存在し、前記移
動機に対して着信要求があった場合に前記無線基地局か
ら前記移動機へ着信呼出しを行ない、該着信呼出し開始
から所定時間内に該着信呼出しをかけた移動機から応答
がない場合に、着信呼出要求を所定回数再送する機能を
有する無線通信システムにおいて、 前記無線基地局における着信呼出要求数が所定の閾値を
越えた場合、無線基地局における着信呼出要求の数に応
じて段階的に再送回数を減少させることを特徴とする無
線通信システム。1. A plurality of mobile stations, which communicate with the radio base station by radio, in the area of the radio base station, and when there is an incoming call request to the mobile station, the mobile station moves from the radio base station to the mobile station. A wireless communication system having a function of making an incoming call to a mobile phone and retransmitting the incoming call request a predetermined number of times when there is no response from the mobile station that made the incoming call within a predetermined time from the start of the incoming call; When the number of incoming call requests at the station exceeds a predetermined threshold, the number of incoming call requests at the radio base station is increased.
A wireless communication system characterized by gradually reducing the number of retransmissions.
における着信呼出し要求の占有率に基づいて行なうこと
とした請求項１に記載の無線通信システム。2. The radio base station according to claim 2, wherein the number of retransmissions is reduced.
Based on the occupancy of incoming call requests
The wireless communication system according to claim 1 which is a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16257896A JP2933536B2 (en) | 1996-06-24 | 1996-06-24 | Wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16257896A JP2933536B2 (en) | 1996-06-24 | 1996-06-24 | Wireless communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1013932A JPH1013932A (en) | 1998-01-16 |
| JP2933536B2 true JP2933536B2 (en) | 1999-08-16 |
Family
ID=15757257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16257896A Expired - Fee Related JP2933536B2 (en) | 1996-06-24 | 1996-06-24 | Wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2933536B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100741437B1 (en) * | 2005-08-22 | 2007-07-23 | 김성규 | Portable/fixed apparatus and method for a function of automatic synchronization for wireless telecommunication |
| JP2009065307A (en) * | 2007-09-05 | 2009-03-26 | Sii Ido Tsushin Kk | Radio apparatus |
-
1996
- 1996-06-24 JP JP16257896A patent/JP2933536B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1013932A (en) | 1998-01-16 |
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