JPH04165725A - Radio system - Google Patents
Radio systemInfo
- Publication number
- JPH04165725A JPH04165725A JP2291560A JP29156090A JPH04165725A JP H04165725 A JPH04165725 A JP H04165725A JP 2291560 A JP2291560 A JP 2291560A JP 29156090 A JP29156090 A JP 29156090A JP H04165725 A JPH04165725 A JP H04165725A
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- master station
- slave
- station radio
- slave 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.)
- Pending
Links
- 230000005684 electric field Effects 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process 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〕
本発明は移動通信における無線システムに関し、特に１
つの親局無線機と複数の子局無線機とからなり送信出力
が子局無線機よりも親局無線機の方が大きい無線システ
ムに関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a wireless system in mobile communication, and in particular to a wireless system for mobile communication.
The present invention relates to a wireless system including one master station radio and a plurality of slave radios, in which the master station radio has a larger transmission output than the slave radios.
従来、この種の無線システムでは、親局を介して互いに
相手を呼出し、応答を受けてから通話を開始している。Conventionally, in this type of wireless system, each party calls the other party via a master station and starts a conversation after receiving a response.
近年、１つの親局と複数の子局とで無線システムを構成
する場合、子局で使用される無線機として高出力の無線
機および低出力の無線機が混在する場合が増加している
。このため、高出力無線機の送信電波は低電力無線機の
送信電波よりも遠くまで到達するので、低出力無線機が
高出力無線機からの呼出し信号を受信しても、高出力無
線機は低出力無線機からの応答信号を受信できない場合
が発生する。従って、呼出しに対して応答がない場合は
、親局のサービスエリア外であるのか、あるいは他の理
由によるのかを判断できないという問題点がある。In recent years, when a wireless system is configured with one master station and a plurality of slave stations, it is increasingly common for the slave stations to use both high-output and low-output radios. For this reason, the radio waves transmitted by high-power radios reach farther than the radio waves transmitted by low-power radios, so even if the low-power radio receives a calling signal from the high-power radio, the high-power radio Occasionally, a response signal from a low-power radio cannot be received. Therefore, if there is no response to a call, there is a problem in that it cannot be determined whether the call is outside the service area of the master station or for some other reason.
本発明の目的は、呼出しに対して応答がない場合、親局
のサービスエリア外であるのか否かを判断できる無線シ
ステムを提供することにある。An object of the present invention is to provide a wireless system that can determine whether or not the base station is outside the service area when there is no response to a call.
本発明の無線システムは、１つの親局無線機と複数の子
局無線機とからなり送信出力が子局無線機よりも親局無
線機の方が大きい無線システムにおいて、前記親局無線
機は、通話を行っていない待機状態のときに所定の間隔
で間欠的に親局のＩＤ番号情報を送信する手段と、前記
子局無線機が送信する子局のＩＤ番号および電界情報を
受信し記憶する手段と、記憶された前記電界情報を読出
して表示する手段とを備え；前記子局無線機は、通話を
行っていない待機状態のときに前記親局のＩＤ番号情報
を受信して受信電界レベルを検知する手段と、前記受信
電界レベルに応じて前記電界情報を生成する手段と、前
記電界情報を前記子局のＩＤ番号情報と共に送信する手
段と、前記電界情報を記憶する手段と、記憶された前記
電界情報を読出して表示する手段とを備えた構成である
。The wireless system of the present invention includes one master station radio and a plurality of slave radios, and the master station radio has a higher transmission output than the slave radios, wherein the master station radio is , means for intermittently transmitting the ID number information of the master station at predetermined intervals when in a standby state without making a call, and receiving and storing the ID number and electric field information of the slave station transmitted by the slave station radio. and means for reading and displaying the stored electric field information; the slave station wireless device receives the ID number information of the master station when it is in a standby state without making a call, and displays the received electric field information. means for detecting a level; means for generating the electric field information according to the received electric field level; means for transmitting the electric field information together with ID number information of the slave station; means for storing the electric field information; This configuration includes means for reading out and displaying the electric field information obtained.
また、前記親局無線機および前記子局無線機は、前記電
界悄〜報に応じて送信を制御する手段をそれぞれ具備し
て構成してもよい。Moreover, the master station radio and the slave station radio may each be configured to include means for controlling transmission in accordance with the electric field alarm.
次に図面を参照して本発明を説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の無線システムの一実施例を示すブロッ
ク図であり、親局無線機１は子局無線機２よりも送信出
力は大きいものとする。親局無線機１は、送信部１１、
受信部１２、制ｆＩｉ部１３、記憶部１４、表示部１５
、発呼部１６およびアンテナ１７を備えている。また、
子局無線機２は、送信部２１、受信部２２、監視部２３
、記憶部２４、表示部２５、発呼部２６およびアンテナ
２７を備えている。FIG. 1 is a block diagram showing an embodiment of the wireless system of the present invention, and it is assumed that the master station radio 1 has a larger transmission output than the slave station radio 2. In FIG. The master station radio 1 includes a transmitter 11,
Receiving section 12, control fIi section 13, storage section 14, display section 15
, a calling unit 16 and an antenna 17. Also,
The slave station radio 2 includes a transmitting section 21, a receiving section 22, and a monitoring section 23.
, a storage section 24, a display section 25, a calling section 26, and an antenna 27.
親局無線機１は通話を行っていない待機状態のとき、第
２図に示すように、所定の間隔で所定の時間、間欠的に
親局のＩＤ番号情報を送信する。When the base station radio 1 is in a standby state where it is not making a call, it intermittently transmits the ID number information of the base station at predetermined intervals and for a predetermined time, as shown in FIG.
このため、制御部１３は、受信部１２からの受信信号お
よび発呼部１６からの発呼要求信号が共にないときに、
送信制御信号ＣＴ１で送信部１１を制御してＩＤ番号情
報を間欠的にアンテナ１７を介して送信させる。Therefore, when there is no received signal from the receiving section 12 and no call request signal from the calling section 16, the control section 13
The transmitter 11 is controlled by the transmitter control signal CT1 to intermittently transmit ID number information via the antenna 17.
一方、子局無線機２は待機状態のとき、親局無線機１か
ら間欠的に送信される電波をアンテナ２７を介して受信
部２２で常時受信し、親局のＩＤ番号を識別して受信電
界強度を示す電界強度信号Ｆを生成し監視部２３へ送出
する。監視部２３は、電界強度信号Ｆを受け、第３図に
示すように、電界強度に応じて電界情報を生成し、送信
制御信号ＣＴ２で送信部２１を制御して自局のＩＤ番号
情報と共にアンテナ２７を介して親局無線機１へ送信す
る。同時に、最新の電界情報が記憶部２４に記憶される
。この場合、受信電界強度がレベルＬ。On the other hand, when the slave station radio 2 is in a standby state, the receiver 22 constantly receives radio waves intermittently transmitted from the master station radio 1 via the antenna 27, identifies the ID number of the master station, and receives the radio waves. An electric field strength signal F indicating the electric field strength is generated and sent to the monitoring section 23. The monitoring unit 23 receives the electric field strength signal F, generates electric field information according to the electric field strength as shown in FIG. It is transmitted to the master station radio device 1 via the antenna 27. At the same time, the latest electric field information is stored in the storage section 24. In this case, the received electric field strength is at level L.
とレベルＬＬとの範囲内に低下したときには、「通話不
良」を示す電界情報を送出し、受信電界強度がレベルＬ
ｏ以上となったときには、「通話良好」を示す電界情報
を送出する。また、受信電界強度がレベルＬｔ、以下と
なったときは「通話不能」を示す電界情報を生成する。When the received electric field strength falls within the range of level LL, it transmits electric field information indicating "poor call" and lowers the received electric field strength to level L.
When the value is equal to or higher than o, electric field information indicating "good communication" is transmitted. Further, when the received electric field strength is equal to or less than level Lt, electric field information indicating "call impossible" is generated.
レベルＬＬは、親局無線機１からの送信電波が子局無線
８！２で受信困難となる値に設定する。また、レベルｔ
、ｏは、子局無線機２からの送信電波が親局無線機１で
受信困難となる値に設定する。Level LL is set to a value that makes it difficult for the slave station radios 8!2 to receive radio waves transmitted from the master station radio 1. Also, level t
, o are set to values that make it difficult for the master station radio 1 to receive radio waves transmitted from the slave station radio 2 .
親局無線機１は、子局無線機２から送信される電界情報
を受信部１２で受信すると、子局のＩＤ番号と共に記憶
部１４に記憶する。さて、親局無線機１の発呼部１６が
子局無線機２に対して発呼要求を行った場合、制御部１
３は記憶部１４から子局無線機２の電界情報を読出し、
「通話良好」であれば通話処理を行う、また、「通話不
良」であれば通話不良であることを表示部１５に表示す
ると共に、子局無線機２に対して呼出し信号を送出する
。子局無線機２は呼出し信号を受信部２２で受信すると
、監視部２３は記憶１１２４から最新の電界情報を読出
し、「通話良好」であれば通話処理を行う、また、「通
話不良」または「通話不能」であれば、呼出し信号の内
容および通話不良であることを表示部２５に表示し、親
局無線機１へ応答信号は送出しない。When the receiving unit 12 receives the electric field information transmitted from the slave station radio 2, the master station radio 1 stores it in the storage unit 14 together with the ID number of the slave station. Now, when the calling unit 16 of the master station radio device 1 issues a call request to the slave station radio device 2, the control unit 1
3 reads the electric field information of the slave station radio device 2 from the storage unit 14;
If the call is "good", the call is processed; if the call is "bad", it is displayed on the display section 15 that the call is bad, and a calling signal is sent to the slave station radio 2. When the receiving unit 22 of the slave station radio 2 receives the calling signal, the monitoring unit 23 reads the latest electric field information from the memory 1124 and processes the call if the call is good. If the call is not possible, the contents of the calling signal and the fact that the call is unsuccessful are displayed on the display section 25, and no response signal is sent to the master station radio 1.
また、子局無線機２の発呼部２６が親局無線機１に対し
て発呼要求を行った場合は、制御部２３は記憶部２４か
ら電界情報を読出し、「通話良好」であれば呼出し信号
を親局無線機１へ送出して通話処理を行う、また、「通
話不良」または「通話不能」であればこれを表示部２５
に表示し、親局無線機１に対する送信は停止する。Further, when the calling unit 26 of the slave station radio 2 makes a call request to the master station radio 1, the control unit 23 reads the electric field information from the storage unit 24, and if the call is good, A call signal is sent to the master station radio 1 to process the call, and if a "call failure" or "call failure" is detected, this is displayed on the display unit 25.
is displayed, and transmission to the master station radio device 1 is stopped.
以上説明したように本発明は、親局無線機が通話を行っ
ていないときに、所定の間隔で間欠的に親局のＩＤ番号
情報を送信し、子局無線機はこれを受信して受信電界レ
ベルを検知して受信電界レベルに応じて電界情報を生成
し記憶すると共に、自局のＩＤ番号情報および電界情報
を親局無線機へ送信し、親局無線機は子局のＩＤ番号情
報および電界情報を受信し記憶することによって、親局
および子局無線機がそれぞれ子局での受信電界状況を監
視することができるので、親局および子局無線機がそれ
ぞれ通話処理を行う場合、親局のサービスエリア外であ
るのか否かを判断することができる。As explained above, the present invention transmits the ID number information of the master station intermittently at predetermined intervals when the master station radio is not making a call, and the slave station radio receives this information. It detects the electric field level and generates and stores electric field information according to the received electric field level, and also transmits its own station's ID number information and electric field information to the master station radio, and the master station radio transmits the slave station's ID number information. By receiving and storing electric field information, the master station and slave station radios can each monitor the received electric field status at the slave station, so when the master station and slave station radios each process a call, It is possible to determine whether the station is outside the service area of the master station.
第１図は本発明の一実施例を示すブロック図、第２図は
親局無線機の動作を説明する図、第３図は子局無線機の
動作を説明する図である。
１・・・・・・親局無線機、２・−・・・・子局無線機
、１１゜２１・・・・・−送信部、１２．２２・・・・
・・受信部、１３・−・・・制御部、１４．２４・・・
・・・記憶部、１５．２５・・・・・・表示部、１６．
２６・−・・・・発呼部、１７．２７・−・・・−アン
テナ、２３・・−・・・監視部。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram explaining the operation of a master station radio, and FIG. 3 is a diagram explaining the operation of a slave station radio. 1... Master station radio device, 2... Slave station radio device, 11゜21...- Transmission unit, 12.22...
...Receiving section, 13...Control section, 14.24...
. . . Storage section, 15. 25 . . . Display section, 16.
26... Calling unit, 17.27... Antenna, 23... Monitoring unit.
Claims (1)
信出力が子局無線機よりも親局無線機の方が大きい無線
システムにおいて、前記親局無線機は、通話を行ってい
ない待機状態のときに所定の間隔で間欠的に親局のＩＤ
番号情報を送信する手段と、前記子局無線機が送信する
子局のＩＤ番号および電界情報を受信し記憶する手段と
、記憶された前記電界情報を読出して表示する手段とを
備え；前記子局無線機は、通話を行っていない待機状態
のときに前記親局のＩＤ番号情報を受信して受信電界レ
ベルを検知する手段と、前記受信電界レベルに応じて前
記電界情報を生成する手段と、前記電界情報を前記子局
のＩＤ番号情報と共に送信する手段と、前記電界情報を
記憶する手段と、記憶された前記電界情報を読出して表
示する手段とを備えたことを特徴とする無線システム。 ２、請求項１記載の無線システムにおいて、前記親局無
線機および前記子局無線機は、前記電界情報に応じて送
信を制御する手段をそれぞれ具備することを特徴とする
無線システム。[Scope of Claims] 1. In a wireless system including one master station radio and a plurality of slave station radios, the master station radio having a higher transmission output than the slave station radios, the master station radio The ID of the parent station is sent intermittently at predetermined intervals when in standby mode and no calls are being made.
comprising means for transmitting number information, means for receiving and storing the ID number and electric field information of the slave station transmitted by the slave station radio, and means for reading and displaying the stored electric field information; The station radio device includes means for receiving ID number information of the master station and detecting a received electric field level when in a standby state where no telephone calls are being made, and means for generating the electric field information according to the received electric field level. , a wireless system comprising means for transmitting the electric field information together with ID number information of the slave station, means for storing the electric field information, and means for reading and displaying the stored electric field information. . 2. The wireless system according to claim 1, wherein the master station radio device and the slave station radio device each include means for controlling transmission according to the electric field information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2291560A JPH04165725A (en) | 1990-10-29 | 1990-10-29 | Radio system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2291560A JPH04165725A (en) | 1990-10-29 | 1990-10-29 | Radio system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04165725A true JPH04165725A (en) | 1992-06-11 |
Family
ID=17770502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2291560A Pending JPH04165725A (en) | 1990-10-29 | 1990-10-29 | Radio system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04165725A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0879169A (en) * | 1994-06-29 | 1996-03-22 | Nec Corp | Multi-address communication system |
-
1990
- 1990-10-29 JP JP2291560A patent/JPH04165725A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0879169A (en) * | 1994-06-29 | 1996-03-22 | Nec Corp | Multi-address communication system |
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