JPH02223236A - Radio transmission system - Google Patents
Radio transmission systemInfo
- Publication number
- JPH02223236A JPH02223236A JP1044579A JP4457989A JPH02223236A JP H02223236 A JPH02223236 A JP H02223236A JP 1044579 A JP1044579 A JP 1044579A JP 4457989 A JP4457989 A JP 4457989A JP H02223236 A JPH02223236 A JP H02223236A
- Authority
- JP
- Japan
- Prior art keywords
- call
- terminal
- call request
- accepted
- acceptance
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- 238000010586 diagram Methods 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
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。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wireless transmission system, and 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８１〜Ｂ３がそれぞれあるゾーンを管理し、各基地
局８１〜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 81 to B3 manages a certain zone, and above each base station 81 to B3 there is a central control station C1 that manages the entire system. It is configured. Further, in FIG. 2, the mobile station M1, which is a terminal, is communicating with the base station B1 within the management zone of the base station B1.
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 the conventional wireless transmission method 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。Base station B1 solicits calls from mobile stations within its management zone. When mobile station M1 wants to make a call, it receives a call invitation from base station B1 and sends out a call request.
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。しがし、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へ加入者チエツク等の要求とし
て端末チエツク要求を行ない、集中管理局Ｃ１から端末
チエツクの結果、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）。Normal uplink messages are uniquely coded based on the subscriber number of the calling mobile station. However, for the call request message, the encoded data cannot be deciphered unless the subscriber number is known, so the subscriber number part is not encoded, but the rest is encoded. 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. Receive the result of the terminal check and the key to decode the encoded part of the call request (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 encoded part 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 learns the subscriber number of the called party (other party) from this call request, performs connection processing (connection request, connection confirmation) with the other party, then issues a call response, and receives the call response. is transmitted to base station B1 and 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、
タイムアウト時に発呼要求のりサイ−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 conventional wireless transmission system described above, many terminals make calls in response to a call invitation from a base station, which may cause a collision of call requests. When this collision occurs, the terminal cannot know whether the call request was received by the system or not, and is waiting for a call response. If the system cannot receive the call request, the terminal waits until the call response timeout,
There is a drawback that a call request cycle is entered upon timeout, and it takes time for the terminal to process the call.
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を行なう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。The wireless transmission system of the present invention is a wireless transmission system in which a plurality of terminals make a call request in accordance with a call invitation from a base station.
a first means for transmitting information indicating that the call request from the terminal has been accepted to the terminal that is the originator of the call request; and second means for determining whether or not 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 explained 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０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 out 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へ加入者チエツク等の要求として端
末チエツク要求を行ない、集中管理局Ｃ１から端末チエ
ツクの結果、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 a call request from the mobile station M1, it sends a terminal check request to the central control station C1 as a request for a subscriber check, etc., and sends the result of the terminal check and the call origination from the central control station C1. Receive a key to decrypt the encoded 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Ｍ
１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Ｂｌ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 regarding the mobile station M1 means that the mobile station M, which is the subscriber who made the call first,
1 means that it has been accepted by the system. As a result, the base station B1 notifies the mobile station M1, which is the corresponding terminal, that the call has been accepted by the system. When the base station Bl receives confirmation of acceptance of the call from the mobile station M1, it sends a call request to the central control station C1,
Thereafter, the same processing as the conventional calling sequence described using FIG. 3 is performed.
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 mobile station M1 sends a call request to when it receives a call acceptance is much shorter than the time from when it receives a call response, mobile station M1 does not know if the call request has been accepted by the system. You can decide 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
けて自分が出しな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 explained above, in the present invention, when the system determines that a call request from a terminal has been accepted, a call acceptance is sent to the corresponding terminal to notify that fact. By immediately determining whether an unexpected call request has been accepted by the system without any collision or reception error, if the request is not accepted, the call request can be immediately recycled, and the terminal's call processing This has the effect of shortening the time and improving serviceability for users.
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図は一晟の無
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。
８１〜Ｂ３・・・基地局、Ｃ１・・・集中管理局、Ｍｌ
・・・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 the 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 the content of a call request message sent from a terminal in the wireless transmission system of Ichigo. 81-B3... Base station, C1... Central control station, Ml
...Mobile station.
Claims (1)
なう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。In a wireless transmission system in which a plurality of terminals make a call request in accordance with a call solicitation from a base station, a first step is to transmit information indicating that the call request from the terminal has been accepted to the terminal that made the call request. A wireless transmission system, characterized in that the terminal comprises the means of 1 and a second means for the terminal to determine whether or not the call request from the terminal has been accepted 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 true JPH02223236A (en) | 1990-09-05 |
| JP2513020B2 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) |
Cited By (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 | Wireless multiple access method |
-
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 | Wireless multiple access method |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2513020B2 (en) | 1996-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |