JP2513020B2 - Wireless transmission system - Google Patents
Wireless transmission systemInfo
- Publication number
- JP2513020B2 JP2513020B2 JP1044579A JP4457989A JP2513020B2 JP 2513020 B2 JP2513020 B2 JP 2513020B2 JP 1044579 A JP1044579 A JP 1044579A JP 4457989 A JP4457989 A JP 4457989A JP 2513020 B2 JP2513020 B2 JP 2513020B2
- Authority
- JP
- Japan
- Prior art keywords
- call
- terminal
- call request
- base station
- wireless transmission
- 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
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は無線伝送方式に関し、特に基地局からの発呼
勧誘に従い移動端末が発呼要求を行う無線伝送方式に関
する。The present invention relates to a wireless transmission system, and more particularly to a wireless transmission system in which a mobile terminal issues a call request in response to a call invitation from a base station.
一般に無線伝送システムは、第２図に示すように、各
基地局B1〜B3がそれぞれあるゾーンを管理し、各基地局
B1〜B3の上位にはシステム全体を管理する集中管理局C1
があるという構成になっている。また、端末である移動
局M1は第２図では基地局B1の管理ゾーン内で基地局B1と
通信を行なっている。Generally, in a wireless transmission system, as shown in FIG. 2, each base station B1 to B3 manages a certain zone, and each base station
A central control station C1 that manages the entire system is located above B1 to B3.
There is a structure. In addition, the mobile station M1 which is a terminal is communicating with the base station B1 in the management zone of the base station B1 in FIG.
第３図は第２図に示す無線伝送システムでの従来の無
線伝送方式の一例における発呼シーケンスを示す図であ
る。FIG. 3 is a diagram showing a calling sequence in an example of a conventional wireless transmission system in the wireless transmission system shown in FIG.
基地局B1はその管理ゾーン内の移動局に対し発呼勧誘
を行なっている。移動局M1は、発呼したい時、基地局B1
からの発呼勧誘を受けて発呼要求を送出する。The base station B1 is soliciting calls to mobile stations in its management zone. When the mobile station M1 wants to make a call, the base station B1
The call request is sent in response to the call invitation from the.
通常の上り電文は発呼移動局の加入者番号により特有
のコード化が行なわれている。しかし、発呼要求電文だ
けは、加入者番号がわからないとコード化されたデータ
を解読できないために、加入者番号の部分はコード化せ
ず、それ以外のところはコード化して送られてくる（第
４図参照）。このため、基地局B1は、発呼要求を受信し
た時、集中管理局C1へ加入者チェック等の要求として端
末チェック要求を行ない、集中管理局C1から端末チェッ
クの結果、及び、発呼要求中のコード化されている部分
を復号化するためのキーをもらう（端末情報）。Ordinary upstream messages are uniquely coded according to the subscriber number of the calling mobile station. However, since only the calling request message cannot decode the coded data without knowing the subscriber number, the part of the subscriber number is not coded and the other parts are coded and sent ( (See FIG. 4). Therefore, when the base station B1 receives the call request, it sends a terminal check request to the central control station C1 as a request for subscriber check, etc., and the result of the terminal check from the central control station C1 and the call request are being made. Get the key to decrypt the coded part of (terminal information).
基地局B1は端末情報を受け、発呼要求中のコード化さ
れている部分を復号化してから集中管理局C1に対し発呼
要求を送る。The base station B1 receives the terminal information, decodes the coded portion of the call request, and then sends the call request to the central control station C1.
集中管理局C1はこの発呼要求から着呼先（相手）の加
入者番号を知り、相手との接続処理（接続要求，接続確
認）を行ない、その後、発呼応答を出し、この発呼応答
は基地局B1及び移動局M1へ伝わる。The central control station C1 knows the subscriber number of the called party (the other party) from this call request, performs connection processing (connection request, connection confirmation) with the other party, then issues a call response, and this call response Is transmitted to the base station B1 and the mobile station M1.
上述した従来の無線伝送方式では、基地局からの発呼
勧誘により多くの端末が発呼するため、発呼要求の衝突
が起り得る。この衝突が起った時、端末は発呼要求がシ
ステムで受信できたか否かを知ることもできず、発呼応
答を待っている。もし発呼要求をシステムが受信できな
かった時、端末は発呼応答待ちのタイムアウトまで待
ち、タイミアウト時に発呼要求のリサイクルに入ること
になり、端末の発呼処理に時間がかかるという欠点があ
る。In the above-described conventional wireless transmission method, many terminals call by the call invitation from the base station, so that a call request collision may occur. When this collision occurs, the terminal cannot know whether the call request has been received by the system, and is waiting for a call response. If the system cannot receive the call request, the terminal waits until the timeout for waiting for a call response and enters the recycling of the call request at the time out, which has the disadvantage that it takes time for the call processing of the terminal. .
本発明の無線伝送方式は、複数の端末が基地局からの
発呼勧誘に従い発呼要求元の端末である自分の識別番号
情報および着呼先の端末である相手の識別番号情報を含
む発呼要求を行ない、前記基地局は受けつけた前記発呼
要求に対する前記着呼先の端末との接続処理が完了した
後に前記発呼要求元の前記端末に発呼応答を伝える無線
伝送方式において、前記端末からの前記発呼要求が受け
つけられた事を示す情報を前記発呼要求元の前記端末に
対し伝える第１の手段と、前記端末が前記第１の手段か
らの前記情報により自分からの前記発呼要求が受けつけ
られたか否かを判断する第２の手段とを備えている。According to the wireless transmission system of the present invention, a plurality of terminals make a call including identification number information of their own which is a call request source terminal and identification number information of another party which is a callee terminal in accordance with call invitation from a base station. In the wireless transmission method, the base station makes a request and transmits a call response to the call request source terminal after the connection process with the call destination terminal for the call request received is completed. From the call request source, the first means for transmitting information indicating that the call request from the terminal has been received, and the terminal, based on the information from the first means, transmitting the call from itself by the terminal. Second means for determining whether the call request has been accepted.
次に、本発明について図面を参照して説明する。 Next, the present invention will be described with reference to the drawings.
第１図は本発明の一実施例における発呼シーケンスを
示す図である。本実施例は第２図に示す無線伝送システ
ムに適用される。FIG. 1 is a diagram showing a calling sequence in one embodiment of the present invention. This embodiment is applied to the wireless transmission system shown in FIG.
端末である移動局M1は、発呼したい時、基地局B1から
の発呼勧誘を受けて発呼要求を送出する。When the mobile station M1, which is a terminal, wants to make a call, it receives a call invitation from the base station B1 and sends a call request.
基地局B1は、移動局M1からの発呼要求を受信したと
き、集中管理局C1へ加入者チェック等の要求として端末
チェック要求を行ない、集中管理局C1から端末チェック
の結果、及び、発呼要求中のコード化されている部分を
復号化するためのキーをもらう（端末情報）。When the base station B1 receives the call request from the mobile station M1, it makes a terminal check request to the centralized control station C1 as a request for subscriber check, etc., and the result of the terminal check from the centralized control station C1 and the call Get the key to decrypt the coded part of the request (terminal information).
ここで、基地局B1が移動局M1に関する端末情報を受信
したということは先に発呼した加入者である移動局M1が
システムに受付けられたことを意味する。これにより基
地局B1は該当端末である移動局M1に対し、発呼受付によ
り、システムに受付けられた事を知らせる。基地局B1
は、移動局M1から発呼受付に対しての確認が得られたと
き、集中管理局C1に対し発呼要求を送り、その後は、第
３図を用いて説明した従来の発呼シーケンスと同様な処
理を行なう。Here, the fact that the base station B1 has received the terminal information on the mobile station M1 means that the mobile station M1 which is the previously called subscriber has been accepted by the system. As a result, the base station B1 informs the mobile station M1, which is the corresponding terminal, that the system has accepted the call by accepting the call. Base station B1
When the mobile station M1 confirms that the call is accepted, it sends a call request to the centralized control station C1, and thereafter the same as the conventional call sequence described using FIG. Perform any kind of processing.
移動局M1が発呼要求を送出してから発呼受付を受信す
るまでの時間は発呼応答を受信するまでの時間よりはる
かに短いから、移動局M1は発呼要求がシステムに受付け
られたかどうかを短時間で判断できる。Since the time from when the mobile station M1 sends the call request to when it receives the call acceptance is much shorter than the time until it receives the call response, the mobile station M1 determines whether the call request was accepted by the system. You can judge in a short time.
以上説明したように本発明は、端末からの発呼要求が
システムに受けつけられたと判断した時該当端末に対し
発呼受付を送ってその旨を伝え、端末はこの発呼受付を
受けて自分が出した発呼要求が衝突又は受信誤りなしに
システムに受付けられたことをすぐに判断することによ
り、受けつけられなかった時はすぐ発呼要求のリサイク
ル処理に入ることができ、端末の発呼処理の短縮化がで
き、ユーザに対するサービス性が上がるという効果があ
る。As described above, according to the present invention, when it is determined that a call request from a terminal has been accepted by the system, a call acceptance is sent to the corresponding terminal to notify that effect, and the terminal receives this call acceptance and By immediately judging that the outgoing call request was accepted by the system without collision or reception error, if it is not accepted, the calling request recycling process can be started immediately, and the terminal outgoing call process can be started. Can be shortened and the serviceability to the user can be improved.
第１図は本発明の一実施例における発呼のシーケンスを
示す図、第２図は本実施例が適用される無線伝送システ
ムの構成を示す図、第３図は従来の無線伝送方式の一例
における発呼のシーケンスを示す図、第４図は一般の無
線伝送方式において端末から送られてくる発呼要求電文
の内容を示す図である。 B1〜B3……基地局、C1……集中管理局、M1……移動局。FIG. 1 is a diagram showing a calling sequence in one embodiment of the present invention, FIG. 2 is a diagram showing a configuration of a wireless transmission system to which this embodiment is applied, and FIG. 3 is an example of a conventional wireless transmission system. FIG. 4 is a diagram showing a calling sequence in FIG. 4, and FIG. 4 is a diagram showing contents of a call request message sent from a terminal in a general wireless transmission system. B1 to B3 ... Base station, C1 ... Central control station, M1 ... Mobile station.
Claims (1)
発呼要求元の端末である自分の識別番号情報および着呼
先の端末である相手の識別番号情報を含む発呼要求を行
ない、前記基地局は受けつけた前記発呼要求に対する前
記着呼先の端末との接続処理が完了した後に前記発呼要
求元の前記端末に発呼応答を伝える無線伝送方式におい
て、前記端末からの前記発呼要求が受けつけられた事を
示す情報を前記発呼要求元の前記端末に対し伝える第１
の手段と、前記端末が前記第１の手段からの前記情報に
より自分からの前記発呼要求が受けつけられたか否かを
判断する第２の手段とを備えたことを特徴とする無線伝
送方式。1. A plurality of terminals, in response to a call invitation from a base station, make a call request including identification number information of the call requesting terminal itself and identification number information of the callee terminal. In the wireless transmission method in which the base station transmits a call response to the call request source terminal after completion of connection processing with the call destination terminal for the received call request, First information for transmitting information indicating that a call request has been received to the terminal that is the call request source
And a second means for determining whether or not the terminal has accepted the call request from the terminal based on the information from the first means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1044579A JP2513020B2 (en) | 1989-02-23 | 1989-02-23 | Wireless transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1044579A JP2513020B2 (en) | 1989-02-23 | 1989-02-23 | Wireless transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02223236A JPH02223236A (en) | 1990-09-05 |
| JP2513020B2 true JP2513020B2 (en) | 1996-07-03 |
Family
ID=12695412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1044579A Expired - Fee Related JP2513020B2 (en) | 1989-02-23 | 1989-02-23 | Wireless transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513020B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012222409A (en) * | 2011-04-04 | 2012-11-12 | Fujitsu Ltd | Wireless communication system, user terminal, base station and communication method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6094545A (en) * | 1983-10-28 | 1985-05-27 | Nec Corp | Mobile radio communication system |
| JPS60152144A (en) * | 1984-01-20 | 1985-08-10 | Hitachi Ltd | Radio multiplex access system |
-
1989
- 1989-02-23 JP JP1044579A patent/JP2513020B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6094545A (en) * | 1983-10-28 | 1985-05-27 | Nec Corp | Mobile radio communication system |
| JPS60152144A (en) * | 1984-01-20 | 1985-08-10 | Hitachi Ltd | Radio multiplex access system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02223236A (en) | 1990-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |