JP2949733B2 - Wireless relay device - Google Patents
Wireless relay deviceInfo
- Publication number
- JP2949733B2 JP2949733B2 JP1249457A JP24945789A JP2949733B2 JP 2949733 B2 JP2949733 B2 JP 2949733B2 JP 1249457 A JP1249457 A JP 1249457A JP 24945789 A JP24945789 A JP 24945789A JP 2949733 B2 JP2949733 B2 JP 2949733B2
- Authority
- JP
- Japan
- Prior art keywords
- station
- time difference
- timing
- transmitter
- relay
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Description
【発明の詳細な説明】 〔発明上の利用分野〕 本発明は時分割多重アクセス方式の無線通信システム
における無線中継装置に関し、特に送信時間調整におけ
る省電力化を図った中継装置に関する。Description: FIELD OF THE INVENTION The present invention relates to a wireless relay device in a time division multiple access wireless communication system, and more particularly to a relay device that saves power in adjusting transmission time.
一般に時分割多重アクセス方式の無線通信システムで
は、親局と複数の中継局及び子局との間の距離はそれぞ
れ異なるため、親局と中継局及び子局との間の電波伝搬
時間は一様ではない。この為、子局は親局あるいは中継
局からの距離に反比例した遅延時間を加えて固有の信号
送出タイミングを形成している。その際、中継局の信号
の受信タイミングと子局の信号送出タイミングがずれて
いるときには、信号送出タイミングを調整する必要があ
る。In general, in a time-division multiple access wireless communication system, the distance between a master station, a plurality of relay stations, and slave stations differs from one another, so that the radio wave propagation time between the master station, the relay station, and the slave station is uniform. is not. Therefore, the slave station adds a delay time inversely proportional to the distance from the master station or the relay station to form a unique signal transmission timing. At this time, if the reception timing of the signal of the relay station is different from the signal transmission timing of the slave station, it is necessary to adjust the signal transmission timing.
この信号送出タイミングを調整するために、従来で
は、第２図に示す親局40,中継局50及び子局60からなる
システム構成がとられている。In order to adjust the signal transmission timing, a system configuration including a master station 40, a relay station 50, and a slave station 60 shown in FIG.
即ち、親局40と中継局50との間の無線回線が接続され
ていて、中継局50が親局40の同期信号生成及び送信チャ
ネル指定回路24より送出される同期信号が受信できる場
合、親局40からは無線回線のどのチャネルで子局60が信
号送出タイミングの調整を行うかという情報を制御チャ
ネルで送信する。この情報を中継局50を通して受信した
子局60は、送信チャネル情報検出回路６でどのチャネル
で調整を行うかを検出し、時間調整信号生成回路５で、
信号送出時間調整信号を送信機３から中継局に向けて送
信する。In other words, when the radio line between the master station 40 and the relay station 50 is connected and the relay station 50 can receive the synchronization signal transmitted from the synchronization signal generation and transmission channel designating circuit 24 of the master station 40, The station 40 transmits information on which channel of the radio line the slave station 60 adjusts the signal transmission timing through the control channel. The slave station 60 that has received this information through the relay station 50 detects which channel is to be adjusted by the transmission channel information detection circuit 6, and the time adjustment signal generation circuit 5
The signal transmission time adjustment signal is transmitted from the transmitter 3 to the relay station.
この信号送出時間調整信号を中継局50の受信機９が受
信すると、時間調整信号検出回路12で子局60からの信号
送出時間調整信号を検出し、中継局タイミング発生回路
11から出力される各中継局が持つ固有のタイミングと、
前記信号送出時間調整信号を受信したタイミングとの時
間の差を時間差検出回路13によって検出し、信号送出タ
イミングの時間差情報を送信機14から親局40に向けて送
信する。When the receiver 9 of the relay station 50 receives the signal transmission time adjustment signal, the time adjustment signal detection circuit 12 detects the signal transmission time adjustment signal from the slave station 60, and outputs the signal to the relay station timing generation circuit.
The unique timing of each relay station output from 11 and
The time difference from the timing at which the signal transmission time adjustment signal is received is detected by the time difference detection circuit 13, and the time difference information of the signal transmission timing is transmitted from the transmitter 14 to the master station 40.
親局40の受信機20が信号送出タイミングの時間差情報
を受信すると、演算回路22は時間差情報が許容値内かど
うか判定し変換回路23にこの許容値情報を出力する。変
換回路23では入力された許容値情報を同期信号生成及び
送信チャネル指定回路24で指定される特定のチャネルで
送信機21から、中継器50を通し子局60に送信する。When the receiver 20 of the master station 40 receives the time difference information of the signal transmission timing, the arithmetic circuit 22 determines whether the time difference information is within the allowable value, and outputs this allowable value information to the conversion circuit 23. The conversion circuit 23 transmits the input permissible value information from the transmitter 21 to the slave station 60 through the repeater 50 on the specific channel designated by the synchronization signal generation and transmission channel designation circuit 24.
更に、従来では、親局40と中継局50との間の無線回線
が接続されておらず、中継局50が親局40の同期信号生成
及び送信チャネル指定回路24より送出される同期信号が
受信できない場合には、この状態を判定回路28が判定
し、それに伴い選択器29はＡ−Ｃ間が接続され、同期信
号生成及び送信チャネル指定回路26から子局60が無線回
線のどのチャネルで信号送出タイミングの時間調整を行
うかという情報を送信機10から制御チャネルで子局に向
けて送信する。Further, conventionally, the radio line between the master station 40 and the relay station 50 is not connected, and the relay station 50 receives the synchronization signal transmitted from the synchronization signal generation and transmission channel designation circuit 24 of the master station 40. If not, the determination circuit 28 determines this state, and accordingly the selector 29 is connected between A and C, and the slave station 60 receives a signal from the synchronization signal generation and transmission channel designation circuit 26 on any channel of the wireless line. Information as to whether the transmission timing is to be adjusted is transmitted from the transmitter 10 to the slave station through the control channel.
この情報を子局60の受信機４が受信すると、送信チャ
ネル情報検出回路６で検出し、時間調整信号生成回路５
で生成した信号送出時間調整信号を送信機３から中継局
に向けて送信する。この信号送出時間調整信号を中継局
50の受信機９が受信すると、時間調整信号検出回路12で
時間調整信号を検出し、中継局タイミング発生回路11か
ら出力される各中継局が持つ固有のタイミングと、前記
信号送出時間調整信号を受信したタイミングとの時間差
を時間差検出回路13によって検出して、信号送出タイミ
ングの時間差情報を変換回路27に出力する。変換回路27
では入力された時間差情報が許容値内かどうか判定し、
この許容値情報を同期信号生成及び送信チャネル指定回
路26で指定される特定のチャネルで送信機10より子局60
に向けて送信する。When this information is received by the receiver 4 of the slave station 60, it is detected by the transmission channel information detection circuit 6, and the time adjustment signal generation circuit 5
Is transmitted from the transmitter 3 to the relay station. This signal transmission time adjustment signal is transmitted to the relay station.
When the 50 receivers 9 receive the signal, the time adjustment signal detection circuit 12 detects the time adjustment signal, and determines the unique timing of each relay station output from the relay station timing generation circuit 11 and the signal transmission time adjustment signal. The time difference from the received timing is detected by the time difference detection circuit 13, and the time difference information of the signal transmission timing is output to the conversion circuit 27. Conversion circuit 27
Determines whether the input time difference information is within the allowable value,
This allowable value information is transmitted from the transmitter 10 to the slave station 60 on a specific channel designated by the synchronization signal generation and transmission channel designation circuit 26.
Send to.
上述した従来の信号送出タイミングの時間調整を行う
ための無線通信システムにおいては、中継局には親局が
時間差情報から許容値かどうかを判定し許容値情報に変
換する回路を備えており、ある子局と中継局で信号送出
タイミングの時間調整をしたい場合、中継局と親局との
無線回線が接続されていないときでも、常に中継局の上
位局側の送信機に対して時間差情報の入力が継続されて
いる。このため、親局との無線回線接続を行わないとき
にも送信機が運転されることになり、送信機が無駄な電
力を消費して省電力の点で好ましくないという問題があ
る。In the conventional radio communication system for performing the time adjustment of the signal transmission timing described above, the relay station includes a circuit that determines whether or not the master station is an allowable value from the time difference information and converts it into allowable value information. If you want to adjust the signal transmission timing between the slave station and the relay station, always input the time difference information to the transmitter on the higher station side of the relay station even when the wireless line between the relay station and the master station is not connected. Has been continued. For this reason, the transmitter is operated even when the wireless line connection with the master station is not performed, and there is a problem that the transmitter consumes unnecessary power and is not preferable in terms of power saving.
本発明の目的はこのような送信機における無駄な電力
消費を防止した無線中継装置を提供することにある。An object of the present invention is to provide a wireless relay device that prevents wasteful power consumption in such a transmitter.
本発明の無線中継装置は、親局との無線回線が接続さ
れているか否かを判定する手段と、前記子局から送出さ
れる時間調整用信号を検出する手段と、この時間調整用
信号検出手段の結果から得られるタイミングと中継局が
持つタイミングの時間差を検出する手段と、前記親局と
無線回線が接続されていないときに前記判定手段からの
出力により制御され、前記タイミング時間差の検出手段
からの時間差信号を前記子局へ送信する手段と、無線回
線が接続されていないときに前記判定手段からの出力に
より制御され、前記タイミング時間差の検出手段からの
時間差信号を親局側の送信機から送出することを停止さ
せる手段とを備えている。The wireless relay device according to the present invention comprises: means for determining whether or not a wireless line with a master station is connected; means for detecting a time adjustment signal transmitted from the slave station; Means for detecting the time difference between the timing obtained from the result of the means and the timing possessed by the relay station, and means for controlling the timing time difference controlled by an output from the determining means when the master station and the wireless line are not connected, Means for transmitting a time difference signal from the slave station to the slave station, and a time difference signal from the timing time difference detection means, which is controlled by an output from the determination means when the wireless line is not connected, to a transmitter on the master station side. Means for stopping the transmission from the server.
この構成では、親局と中継局との無線回線が接続され
ていないときには、タイミング時間差の検出手段からの
時間差信号が親局側の送信機から送出することが停止さ
れるため、この間における送信機への電力供給が停止さ
れ、無駄な電力消費が防止される。In this configuration, when the wireless line between the master station and the relay station is not connected, the transmission of the time difference signal from the timing time difference detection means from the transmitter on the master station is stopped. The power supply to the power supply is stopped, and wasteful power consumption is prevented.
次に、本発明を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図は本発明の無線中継装置を含む時分割多重アク
セス通信方式の無線通信システムのブロック図である。
図において、40は親局、50は中継局、60は子局であり、
第２図の従来構成と同一部分には同一符号を付してあ
る。FIG. 1 is a block diagram of a wireless communication system of a time division multiple access communication system including a wireless relay device of the present invention.
In the figure, 40 is a master station, 50 is a relay station, 60 is a slave station,
The same parts as those in the conventional configuration in FIG. 2 are denoted by the same reference numerals.
ここで、前記中継局50には、親局40と無線回線が接続
されていないときに、無線回線が接続されているか否か
を判定する判定回路28からの出力により制御される選択
器25を新たに設けており、この選択器25の切り換え動作
によって親局40に向けての送信機14への入力を停止する
ことができるように構成している。Here, the relay station 50 includes a selector 25 that is controlled by an output from a determination circuit 28 that determines whether a wireless line is connected when the master station 40 and the wireless line are not connected. This is newly provided, and the switching operation of the selector 25 is configured so that the input to the transmitter 14 to the master station 40 can be stopped.
次に作用を説明する。 Next, the operation will be described.
親局40と中継局50との間の無線回線が接続されて、中
継局50が親局40の同期信号生成及び送信チャネル指定回
路24より送出される同期信号が受信できる場合、判定回
路28からの出力により制御される選択器25,29はそれぞ
れＡ−Ｂ間が接続され、従来の信号選出タイミングの調
整及び通常の中継動作を行うことができる。When the wireless line between the master station 40 and the relay station 50 is connected and the relay station 50 can receive the synchronization signal generated by the synchronization signal generation and transmission channel designation circuit 24 of the master station 40, the determination circuit 28 The selectors 25 and 29 controlled by the outputs are connected between A and B, respectively, and can perform conventional signal selection timing adjustment and normal relay operation.
更に、親局40と中継局50との間の無線回線が接続され
ておらず、中継局50が親局40の同期信号生成及び送信チ
ャネル指定回路24より送出される同期信号が受信できな
い場合、判定回路28が判定し、それに伴い選択器25,29
はそれぞれＡ−Ｃ間が接続され、同期信号生成及び送信
チャネル指定回路26から子局60が無線回線のどのチャネ
ルで信号送出タイミングの時間調整を行うかという情報
を送信機10から制御チャネルで子局60に向けて送信す
る。Furthermore, when the wireless line between the master station 40 and the relay station 50 is not connected, and the relay station 50 cannot receive the synchronization signal transmitted from the synchronization signal generation and transmission channel designation circuit 24 of the master station 40, The determination circuit 28 makes a determination, and accordingly, the selectors 25 and 29
Are connected between A and C, and the synchronization signal generation and transmission channel designating circuit 26 sends information on which channel of the radio line the signal transmission timing is adjusted by the slave station 60 from the transmitter 10 through the control channel. Transmit to the station 60.
この情報を子局60の受信機４が受信すると送信チャネ
ル情報検出回路６で検出し、時間調整信号生成回路５で
信号送出時間調整信号を生成し、これを送信機３から中
継局50に向けて送信する。この信号送出時間調整信号を
中継局50の受信機９が受信すると、時間調整信号検出回
路12で信号送出時間調整信号を検出し、中継局タイミン
グ発生回路11から出力される各中継局が持つ固有のタイ
ミングと、検出された信号送出時間調整信号を受信した
タイミングとの時間差を時間差検出回路13によって検出
する。When this information is received by the receiver 4 of the slave station 60, it is detected by the transmission channel information detection circuit 6, and a time adjustment signal generation circuit 5 generates a signal transmission time adjustment signal, which is transmitted from the transmitter 3 to the relay station 50. To send. When the receiver 9 of the relay station 50 receives the signal transmission time adjustment signal, the signal transmission time adjustment signal is detected by the time adjustment signal detection circuit 12 and the unique signal of each relay station output from the relay station timing generation circuit 11 is output. Is detected by the time difference detection circuit 13 between the above timing and the timing at which the detected signal transmission time adjustment signal is received.
ここで時間差検出回路13によって検出した時間差情報
は、無線回線が接続されているか否かを判定する判定回
路28からの出力により制御される選択器25によって送信
機14へは入力されず、送信機14が無駄な電力を消費する
ことなく、変換回路27のみに入力される。変換回路27で
は入力された時間差情報を時間差が許容値内かどうか判
定し、この許容値情報を同期信号生成及び送信チャネル
指定回路26で指定される特定のチャネルで送信機10より
子局60に向けて送信する。Here, the time difference information detected by the time difference detection circuit 13 is not input to the transmitter 14 by the selector 25 controlled by the output from the determination circuit 28 for determining whether or not the wireless line is connected. 14 is input to only the conversion circuit 27 without consuming unnecessary power. The conversion circuit 27 determines whether or not the input time difference information indicates that the time difference is within the allowable value, and transmits the allowable value information to the slave station 60 from the transmitter 10 on the specific channel specified by the synchronization signal generation and transmission channel specifying circuit 26. Send to.
以上説明したように本発明における中継局は、親局と
中継局との無線回線が接続されていなくとも中継局と子
局との間で信号送出タイミングの時間調整が可能な機能
と、親局の送信機に対して中継局と子局での時間差情報
を入力するか否かを制御する機能を備えているので、無
線回線が接続されていないときに送信機に電力を供給す
ることが防止され、無駄な電力の消費が防止されるとい
う効果がある。As described above, the relay station according to the present invention has a function capable of adjusting the timing of signal transmission timing between the relay station and the slave station even when the wireless line between the master station and the relay station is not connected, and The function to control whether or not to input the time difference information between the relay station and the slave station to the transmitter of this type prevents power from being supplied to the transmitter when the wireless line is not connected. This has the effect of preventing wasteful power consumption.
第１図は本発明の無線中継装置を含む通信システムの一
実施例のブロック図、第２図は従来の通信システムの一
例のブロック図である。 １……アンテナ、２……送受共用器、３……送信機、４
……受信機、５……時間調整信号生成回路、６……送信
チャネル情報検出回路、７……アンテナ、８……送受共
用器、９……受信機、10……送信機、11……中継局タイ
ミング発生回路、12……時間調整信号検出回路、13……
時間差検出回路、14……送信機、15……受信機、16……
送受共用器、17……アンテナ、18……アンテナ、19……
送受共用器、20……受信機、21……送信機、22……演算
回路、23……変換回路、24……同期信号発生及び送信チ
ャネル指定回路、25……選択器、26……同期信号発生及
び送信チャネル指定回路、27……変換回路、28……判定
回路、40……親局、50……中継局、60……子局。FIG. 1 is a block diagram of an embodiment of a communication system including a wireless relay device of the present invention, and FIG. 2 is a block diagram of an example of a conventional communication system. 1 ... antenna, 2 ... duplexer, 3 ... transmitter, 4
… Receiver, 5… Time adjustment signal generation circuit, 6… Transmission channel information detection circuit, 7… Antenna, 8… Communicator, 9… Receiver, 10… Transmitter, 11… Relay station timing generation circuit, 12 ... Time adjustment signal detection circuit, 13 ...
Time difference detection circuit, 14 ... Transmitter, 15 ... Receiver, 16 ...
Transmitter / receiver, 17 …… Antenna, 18 …… Antenna, 19 ……
Duplexer, 20 ... Receiver, 21 ... Transmitter, 22 ... Operation circuit, 23 ... Conversion circuit, 24 ... Synchronization signal generation and transmission channel designation circuit, 25 ... Selector, 26 ... Synchronization Signal generation and transmission channel designation circuit, 27 conversion circuit, 28 determination circuit, 40 master station, 50 relay station, 60 slave station.
Claims (2)
される時分割多重通信システムにおいて、前記中継局に
は、親局との無線回線が接続されているか否かを判定す
る手段と、前記子局から送出される時間調整信号を検出
する手段と、この時間調整用信号検出手段の結果から得
られるタイミングと中継局が持つタイミングの時間差を
検出する手段と、前記親局と無線回線が接続されていな
いときに前記判定手段からの出力により制御され、前記
タイミング時間差の検出手段からの時間差信号を前記子
局へ送信する手段と、無線回線が接続されていないとき
に前記判定手段からの出力により制御され、前記タイミ
ング時間差の検出手段からの時間差信号を親局側の送信
機から送出することを停止させる手段とを備えることを
特徴とする無線中継装置。1. In a time division multiplex communication system comprising one master station, a plurality of relay stations and slave stations, it is determined whether or not the relay station is connected to a radio line with the master station. Means, means for detecting a time adjustment signal sent from the slave station, means for detecting the time difference between the timing obtained from the result of the time adjustment signal detection means and the timing of the relay station, and the master station, Means for transmitting a time difference signal from the timing time difference detecting means to the slave station, the means being controlled by an output from the determining means when the wireless line is not connected, and the determining means when the wireless line is not connected. Means for controlling the output from the means to stop sending the time difference signal from the timing time difference detecting means from the transmitter on the master station side. Apparatus.
ことを停止する手段は、時間差の検出手段と前記送信機
との間に介挿した選択器であり、この選択器は無線回線
が接続されないときに、前記時間差信号を許容値情報と
して子局に向けて送信する手段に出力するように構成し
てなる特許請求の範囲第１項記載の無線中継装置。2. A means for stopping the transmission of the time difference signal from the transmitter on the master station side is a selector interposed between the time difference detecting means and the transmitter, and the selector is a radio line. 2. The wireless relay device according to claim 1, wherein the wireless relay device is configured to output the time difference signal as allowable value information to a slave station when the wireless communication device is not connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1249457A JP2949733B2 (en) | 1989-09-26 | 1989-09-26 | Wireless relay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1249457A JP2949733B2 (en) | 1989-09-26 | 1989-09-26 | Wireless relay device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03110934A JPH03110934A (en) | 1991-05-10 |
| JP2949733B2 true JP2949733B2 (en) | 1999-09-20 |
Family
ID=17193248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1249457A Expired - Fee Related JP2949733B2 (en) | 1989-09-26 | 1989-09-26 | Wireless relay device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2949733B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5433404B2 (en) * | 2009-12-25 | 2014-03-05 | 株式会社東芝 | Wireless repeater device |
-
1989
- 1989-09-26 JP JP1249457A patent/JP2949733B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03110934A (en) | 1991-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |