JP2006345120A - Wireless data communication system, wireless unit, and transmission circuit avoiding method and program for use therein - Google Patents

Wireless data communication system, wireless unit, and transmission circuit avoiding method and program for use therein Download PDF

Info

Publication number
JP2006345120A
JP2006345120A JP2005167609A JP2005167609A JP2006345120A JP 2006345120 A JP2006345120 A JP 2006345120A JP 2005167609 A JP2005167609 A JP 2005167609A JP 2005167609 A JP2005167609 A JP 2005167609A JP 2006345120 A JP2006345120 A JP 2006345120A
Authority
JP
Japan
Prior art keywords
radio
wireless data
transmitting
wireless
channel
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
Application number
JP2005167609A
Other languages
Japanese (ja)
Other versions
JP4382704B2 (en
Inventor
Takeshi Yatani
毅 八谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MX Mobiling Ltd
Original Assignee
MX Mobiling Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MX Mobiling Ltd filed Critical MX Mobiling Ltd
Priority to JP2005167609A priority Critical patent/JP4382704B2/en
Publication of JP2006345120A publication Critical patent/JP2006345120A/en
Application granted granted Critical
Publication of JP4382704B2 publication Critical patent/JP4382704B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless data communication system which avoids jamming wave in wireless data communication. <P>SOLUTION: A transmission side wireless unit 1 is monitoring the receiving field strength level of jamming wave constantly under waiting state. The wireless unit 1 calculates the time when there is no jamming wave from the number of times of sampling performed when the receiving field strength level is low and sets the data length of transmission data based on the calculated time. The transmission data sets the data length by fixing the preamble for synchronization and the header and making the data part variable. A flag is set in the header so that alternation in setting of data length can be recognized on the receiving side. The wireless unit 1 performs transmission in synchronism with the receiving field strength level. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は無線データ通信システム、無線機及びそれらに用いる伝送路回避方法並びにそのプログラムに関し、特に無線データ通信システムにおける妨害波の回避方法に関する。   The present invention relates to a wireless data communication system, a wireless device, a transmission path avoidance method used therefor, and a program therefor, and more particularly to an interference wave avoidance method in a wireless data communication system.

従来、無線データ通信システムにおいては、無線送信側または無線受信側に妨害波が発生した場合、妨害波によって無線データに誤りが生じたり、無線送信ができなかったりする等の障害が発生している。   Conventionally, in a wireless data communication system, when an interference wave is generated on the wireless transmission side or the wireless reception side, a failure such as an error in the wireless data or an inability to perform wireless transmission occurs due to the interference wave. .

従来の無線データ通信システムでは、この妨害波を回避するために、無線データを連続して再送したり、またはタイマを使用して間隔を開けて再送したりする等の制御が行われている。   In a conventional wireless data communication system, in order to avoid this interference wave, control is performed such as continuously retransmitting wireless data or retransmitting data at intervals using a timer.

また、従来の無線データ通信システムでは、受信した電界強度から平均ランダムエラー率を予想し、エラー率からエラー発生間隔を想定し、このエラー発生間隔に対して最もスループットが高くなるパケットサイズをリアルタイムに選択していくことで、スループットの向上を図る方法も提案されている（例えば、特許文献１参照）。   Also, in the conventional wireless data communication system, an average random error rate is predicted from the received electric field strength, an error occurrence interval is assumed from the error rate, and the packet size with the highest throughput for this error occurrence interval is determined in real time. There has also been proposed a method for improving the throughput by making a selection (see, for example, Patent Document 1).

特開平１１−２０５２１６号公報JP-A-11-205216

上述した従来の無線データ通信システムでは、無線データを連続して再送したり、またはタイマを使用して間隔を開けて再送したりする等の制御しか行っていないので、必ずしも無線データ通信における妨害波を回避することはできない。   In the conventional wireless data communication system described above, control is performed such as retransmitting wireless data continuously or retransmitting at intervals using a timer. Cannot be avoided.

また、上記の特許文献１に記載の方法でも、受信した電界強度のみに基づいて平均ランダムエラー率を予想し、エラー率からエラー発生間隔を想定しているので、送信側に妨害波が発生すると対処することができず、十分に妨害波の回避を行うことができない。   Also, in the method described in Patent Document 1 described above, an average random error rate is predicted based only on the received electric field strength, and an error occurrence interval is assumed from the error rate. It cannot be dealt with and interference waves cannot be avoided sufficiently.

そこで、本発明の目的は上記の問題点を解消し、無線データ通信における妨害波を回避することができる無線データ通信システム、無線機及びそれらに用いる伝送路回避方法並びにそのプログラムを提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide a wireless data communication system, a wireless device, a transmission path avoidance method used therefor, and a program therefor, which can solve the above-described problems and avoid interference waves in wireless data communication. is there.

本発明による無線データ通信システムは、送信側の無線機から送信された無線データを受信側の無線機にて受取る無線データ通信システムであって、
前記無線機は、送信側及び受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタするモニタ手段と、前記モニタ手段のモニタ結果を基に前記妨害波の発生間隔を検知する検知手段と、前記検知手段で検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する送出手段とを備えている。 A wireless data communication system according to the present invention is a wireless data communication system for receiving wireless data transmitted from a transmitting-side wireless device at a receiving-side wireless device,
The radio includes a monitoring unit that monitors the electric field strength of the jamming wave when a radio link condition deteriorates at least on the transmission side and the receiving side, and the generation of the jamming wave based on the monitoring result of the monitoring unit. Detection means for detecting the interval, and transmission means for transmitting the wireless data at a timing when the interference wave is not transmitted based on the generation interval detected by the detection means.

本発明による無線機は、送信側から送信された無線データを受信側にて受取る無線機であって、
前記送信側及び前記受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタするモニタ手段と、前記モニタ手段のモニタ結果を基に前記妨害波の発生間隔を検知する検知手段と、前記検知手段で検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する送出手段とを備えている。 A wireless device according to the present invention is a wireless device that receives wireless data transmitted from a transmitting side at a receiving side,
Monitor means for monitoring the electric field strength of the disturbing wave when radio channel conditions deteriorate due to the disturbing wave at least on the transmitting side and the receiving side, and detecting the occurrence interval of the disturbing wave based on the monitoring result of the monitoring means And detecting means for transmitting the wireless data at a timing at which the interference wave is not transmitted based on the generation interval detected by the detecting means.

本発明による伝送路回避方法は、送信側の無線機から送信された無線データを受信側の無線機にて受取る無線データ通信システムに用いられる伝送路回避方法であって、
前記無線機が、送信側及び受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタする第１の処理と、前記第１の処理のモニタ結果を基に前記妨害波の発生間隔を検知する第２の処理と、前記第２の処理で検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する第３の処理とを実行している。 A transmission path avoidance method according to the present invention is a transmission path avoidance method used in a radio data communication system for receiving radio data transmitted from a transmission-side radio by a reception-side radio.
The wireless device has a first process for monitoring the electric field strength of the jamming wave when a radio channel condition deteriorates at least on the transmission side and the receiving side due to the jamming wave, and based on the monitoring result of the first process, A second process for detecting an occurrence interval of an interference wave, and a third process for transmitting the wireless data at a timing at which the interference wave is not transmitted based on the occurrence interval detected in the second process. Running.

本発明による伝送路回避方法のプログラムは、送信側の無線機から送信された無線データを受信側の無線機にて受取る無線データ通信システムに用いられる伝送路回避方法のプログラムであって、
コンピュータに、送信側及び受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタする処理と、そのモニタ結果を基に前記妨害波の発生間隔を検知する処理と、この検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する処理とを実行させている。 A program for a transmission path avoidance method according to the present invention is a program for a transmission path avoidance method used in a wireless data communication system for receiving wireless data transmitted from a transmitting-side radio by a receiving-side radio.
A process of monitoring the electric field strength of the jamming wave when the radio line condition deteriorates at least on the transmitting side and the receiving side due to the jamming wave; and a process of detecting the occurrence interval of the jamming wave based on the monitoring result Then, based on the detected generation interval, a process of transmitting the wireless data at a timing when the interference wave is not transmitted is executed.

すなわち、本発明の無線データ通信システムは、無線通信方式によってデータ通信を行っているシステムにおいて、送信側及び受信側で希望波に対して妨害波等によって無線回線状況が悪化した場合、妨害波の電界強度をモニタすることによって、妨害波の発生間隔を検知し、妨害波の送出されていないタイミングで無線データを送出している。   That is, the wireless data communication system of the present invention is a system in which data communication is performed by a wireless communication method. By monitoring the electric field strength, the generation interval of the interference wave is detected, and the wireless data is transmitted at a timing when the interference wave is not transmitted.

また、本発明の無線データ通信システムでは、送出するデータ長を妨害波の発生していない間隔に合わせて設定することによって、妨害波を回避している。さらに、本発明の無線データ通信システムでは、妨害波等によって無線回線が継続的に悪化した場合、使用可能な他の通信チャネルも同時に電界強度をモニタし、他のチャネルへの変更を行っている。   Further, in the wireless data communication system of the present invention, the interference data is avoided by setting the data length to be transmitted in accordance with the interval at which the interference signal is not generated. Furthermore, in the wireless data communication system of the present invention, when a wireless line is continuously deteriorated due to an interference wave or the like, other usable communication channels simultaneously monitor the electric field strength and change to another channel. .

本発明の無線データ通信システムでは、受信側から応答がない場合、送信側無線機にて、妨害波の影響を少なくするために、上記と同様に、他の通信チャネルへの変更を行う。また、本発明の無線データ通信システムでは、受信側においても電界強度をモニタし、通信データを受信するまで、使用可能な他のチャネルをスキャンしている。さらに、本発明の無線データ通信システムでは、送信側においても受信側から正常応答があるまで送信データを送出することで、確実な伝送路を構築することが可能となる。   In the wireless data communication system of the present invention, when there is no response from the reception side, the transmission side radio device changes to another communication channel in the same manner as described above in order to reduce the influence of the interference wave. In the wireless data communication system of the present invention, the field strength is also monitored on the receiving side, and other usable channels are scanned until communication data is received. Furthermore, in the wireless data communication system of the present invention, it is possible to construct a reliable transmission path by transmitting transmission data on the transmission side until there is a normal response from the reception side.

これによって、本発明の無線データ通信システムでは、送信側で妨害波及び他の使用可能なチャネルの電界強度をモニタし、妨害波の発生間隔を検知することによって、送信データ長の設定及び使用可能な通信チャネルの変更を行い、妨害波の発生していない間及び妨害波の発生していないチャネルに送信することによって、妨害波を回避することが可能となる。   Thus, in the wireless data communication system of the present invention, the transmission data length can be set and used by monitoring the electric field strength of the interference wave and other usable channels on the transmission side and detecting the generation interval of the interference wave. It is possible to avoid the interference wave by changing the communication channel and transmitting to the channel where the interference wave is not generated and during the time when the interference wave is not generated.

また、本発明の無線データ通信システムでは、受信側で妨害波が発生している場合においても、送信側でデータ長の設定を変えて再送を行い、正常に通信を行えるデータ長を見つけることによって、妨害波の影響を減少させることが可能となる。   Further, in the wireless data communication system of the present invention, even when an interference wave is generated on the receiving side, by changing the data length setting on the transmitting side and performing retransmission, by finding the data length that allows normal communication It becomes possible to reduce the influence of the interference wave.

さらに、本発明の無線データ通信システムでは、通信を行えるデータ長によって使用可能な他のチャネルへの変更を行い、通信を確実に行うことが可能な回線へ変更することによって、妨害波の影響を回避することが可能となる。さらにまた、本発明の無線データ通信システムでは、無線伝送速度が高速になるにつれて妨害波の影響で送信間隔が短くてもデータ量が多くなるので、有効なデータ通信を行うことが可能となる。   Furthermore, in the wireless data communication system of the present invention, the channel is changed to another channel that can be used according to the data length that can be communicated, and the channel is changed to a line that can reliably communicate, thereby reducing the influence of interference waves. It can be avoided. Furthermore, in the wireless data communication system of the present invention, as the wireless transmission speed increases, the amount of data increases even if the transmission interval is short due to the influence of interference waves, so that effective data communication can be performed.

本発明は、以下に述べるような構成及び動作とすることで、無線データ通信における妨害波を回避することができるという効果が得られる。   According to the present invention, an interference wave in wireless data communication can be avoided by adopting the configuration and operation described below.

次に、本発明の実施例について図面を参照して説明する。図１は本発明の一実施例による無線機の構成を示すブロック図である。図１において、無線機１はＣＰＵ（中央処理装置）１１と、ＣＰＵ１１が実行する制御プログラム１２ａを格納するメインメモリ１２と、ＣＰＵ１１が制御プログラム１２ａを実行する際に作業領域として使用する記憶装置１３と、無線データ通信の制御を行う無線通信制御部１４と、アンテナ１５と、妨害波の電界強度をモニタする妨害波電界強度モニタ部１６とから構成されている。   Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a radio according to an embodiment of the present invention. In FIG. 1, a wireless device 1 includes a CPU (central processing unit) 11, a main memory 12 that stores a control program 12a executed by the CPU 11, and a storage device 13 that is used as a work area when the CPU 11 executes the control program 12a. And a radio communication control unit 14 that controls radio data communication, an antenna 15, and an interfering wave electric field intensity monitoring unit 16 that monitors the electric field intensity of the interfering wave.

尚、記憶装置１３には現在の送信データ長を保持する送信データ長保持部１３１と、現在のチャネル情報を保持するチャネル情報保持部１３２とが設けられている。また、ＣＰＵ１１、メインメモリ１２、記憶装置１３、無線通信制御部１４、妨害波電界強度モニタ部１６はそれぞれ内部バス１００にて相互に接続されている。   The storage device 13 is provided with a transmission data length holding unit 131 that holds the current transmission data length and a channel information holding unit 132 that holds the current channel information. Further, the CPU 11, the main memory 12, the storage device 13, the wireless communication control unit 14, and the disturbing wave electric field intensity monitor unit 16 are connected to each other via an internal bus 100.

図２は本発明の一実施例による無線データ通信システムの構成例を示すブロック図である。図２において、本発明の一実施例による無線データ通信システムは無線機１と無線機２とから構成されている。尚、この無線データ通信システムにおいては、無線機１側に妨害波１０１、無線機２側に妨害波１０２がそれぞれ発生しているものとする。また、無線機１及び無線機２は上記の図１に示す無線機１と同様の構成になっているものとする。   FIG. 2 is a block diagram showing a configuration example of a wireless data communication system according to an embodiment of the present invention. In FIG. 2, the wireless data communication system according to an embodiment of the present invention includes a wireless device 1 and a wireless device 2. In this wireless data communication system, it is assumed that the interference wave 101 is generated on the wireless device 1 side and the interference wave 102 is generated on the wireless device 2 side. Further, it is assumed that the wireless device 1 and the wireless device 2 have the same configuration as the wireless device 1 shown in FIG.

図３は図１に示す妨害波電界強度モニタ部１６による妨害波の電界強度のモニタ動作を示す図であり、図４は本発明の一実施例による無線機１による妨害波の電界強度のモニタ動作を示すフローチャートである。これら図１〜図４を参照して本発明の一実施例による無線機１による妨害波の電界強度のモニタ動作について説明する。尚、図４に示す動作はＣＰＵ１１が制御プログラム１２ａを実行することで実現される。   FIG. 3 is a diagram showing the operation of monitoring the electric field intensity of the interference wave by the interference wave electric field intensity monitor unit 16 shown in FIG. 1, and FIG. 4 is a monitor of the electric field intensity of the interference wave by the radio 1 according to one embodiment of the present invention. It is a flowchart which shows operation | movement. The operation of monitoring the electric field strength of the interference wave by the radio 1 according to an embodiment of the present invention will be described with reference to FIGS. The operation shown in FIG. 4 is realized by the CPU 11 executing the control program 12a.

送信側の無線機１は、待ち受け状態において常に妨害波の受信電界強度（ＲＳＳＩ：Ｒｅｃｅｉｖｅｄ Ｓｉｇｎａｌ Ｓｔｒｅｎｇｔｈ Ｉｎｄｉｃａｔｏｒ）レベルをモニタしている。受信電界強度レベルのモニタを行う場合、無線機１は受信電界強度レベルをＡ／Ｄ（アナログ／ディジタル）変換によって一定間隔でサンプリングを行う（図３参照）（図４ステップＳ１）。   The transmitter-side radio device 1 always monitors the received signal strength indicator (RSSI) level of an interference wave in a standby state. When monitoring the received electric field strength level, the wireless device 1 samples the received electric field strength level at regular intervals by A / D (analog / digital) conversion (see FIG. 3) (step S1 in FIG. 4).

無線機１は受信電界強度レベルの低い時に何回サンプリングを行ったかで妨害波のない時間を算出する（図４ステップＳ２〜Ｓ５）。無線機１はこの算出された時間を基に送信データのデータ長を設定する（図４ステップＳ６）。送信データは同期用のプリアンブル及びヘッダ部を固定とし、それ以外のデータ部を可変とすることによってデータ長を設定する。また、ヘッダ部には受信側でデータ長の設定を変えたことがわかるようにフラグをたてておく。送信を行う際に、無線機１は受信電界強度レベルに同期して送信を行う。   The wireless device 1 calculates the time without the interference wave depending on how many times the sampling is performed when the received electric field strength level is low (steps S2 to S5 in FIG. 4). The wireless device 1 sets the data length of the transmission data based on the calculated time (step S6 in FIG. 4). The transmission data has a data length set by fixing the synchronization preamble and header part and making the other data parts variable. In addition, a flag is set in the header portion so that it can be seen that the data length setting has been changed on the receiving side. When performing transmission, the wireless device 1 performs transmission in synchronization with the received electric field strength level.

図５は本発明の一実施例による無線データ通信システムにおけるデータ長の可変処理を示す図であり、図６は本発明の一実施例による無線データ通信システムにおけるチャネル変更処理を示す図である。   FIG. 5 is a diagram showing variable data length processing in a wireless data communication system according to an embodiment of the present invention. FIG. 6 is a diagram showing channel change processing in a wireless data communication system according to an embodiment of the present invention.

図５においては送信側の無線機１から送信が行われたが、受信側の無線機２に妨害波が発生している場合の妨害波の回避処理を示している。送信側の無線機１からデータ長「１０」で送信されてきたが［図５（ａ）参照］、受信側の無線機２の妨害波の影響で通信が成立しなかった場合、送信側の無線機１はデータ長を「５」に変更して再送を行う［図５（ｂ）参照］。   FIG. 5 shows an interference wave avoidance process in the case where an interference wave is generated in the reception-side wireless device 2 although transmission is performed from the transmission-side wireless device 1. If the transmission side wireless device 1 has been transmitted with a data length of “10” [see FIG. 5 (a)], but communication has not been established due to the interference of the reception side wireless device 2, The wireless device 1 changes the data length to “5” and performs retransmission (see FIG. 5B).

それでも、通信が成立しなかった場合、送信側の無線機１はさらにデータ長を変更し、データ長を「１」で送信を行う［図５（ｃ）参照］。ここで、通信が成立すれば、送信側の無線機１はその後、データ長「１」で送信を行う。   If the communication is still not established, the transmitting-side radio device 1 further changes the data length and transmits the data length “1” [see FIG. 5C]. Here, if the communication is established, the transmitter-side radio 1 thereafter transmits with the data length “1”.

図６において、送信側の無線機１は継続して妨害波が発生し、データ長を短くしても通信が成立せず、妨害波の受信電界強度レベルが継続して高く、受信機からの応答がない等の条件によって、他のチャネルにおける受信電界強度レベルのモニタ値によって空きチャネルへ変更し、通信可能な伝送路を確保する。   In FIG. 6, the radio device 1 on the transmission side continuously generates interference waves, and communication is not established even if the data length is shortened, and the reception field strength level of the interference waves is continuously high. In accordance with conditions such as no response, the channel is changed to an empty channel according to the monitor value of the received electric field strength level in another channel, and a transmission path capable of communication is secured.

受信側の無線機２では、ある一定時間データがない場合、通信チャンネルの受信電界強度レベルが高い場合に、他の通信チャネルのスキャンを行い、送信側の無線機１が送信した通信データによって空きチャネルへ変更し、通信可能な伝送路を確保する。   When there is no data for a certain period of time or when the reception field strength level of the communication channel is high, the reception-side radio 2 scans another communication channel, and the communication is transmitted by the communication data transmitted by the transmission-side radio 1 Change to a channel and secure a communicable transmission path.

このように、本実施例では、送信側で妨害波及び他の使用可能なチャネルの電界強度レベルをモニタし、妨害波の発生間隔を検知することによって、送信データ長の設定及び使用可能な通信チャネルへの変更を行い、妨害波の発生していない間及び妨害波の発生していないチャネルにて送信することによって、妨害波を回避することができる。   As described above, in this embodiment, the transmission data length is set and the usable communication is performed by monitoring the electric field strength level of the interference wave and other usable channels on the transmission side and detecting the generation interval of the interference wave. By changing to a channel and transmitting on a channel in which no disturbing wave is generated and when the disturbing wave is not generated, the disturbing wave can be avoided.

また、本実施例では、受信側で妨害波が発生している場合においても、送信側でデータ長の設定を変えることによって再送を行い、正常に通信を行えるデータ長を見つけることによって、妨害波の影響を減少させることができる。さらに、本実施例では、通信を行えるデータ長によって使用可能な他のチャネルへの変更を行い、通信を確実に行うことができる回線へ変更することで、妨害波の影響を回避することができる。尚、本実施例では、無線伝送速度が高速になるにつれて妨害波の影響で送信間隔が短くてもデータ量が多くなるので、有効なデータ通信を行うことができる。   Further, in this embodiment, even when an interference wave is generated on the reception side, retransmission is performed by changing the data length setting on the transmission side, and by finding a data length that allows normal communication, the interference wave is detected. Can reduce the effects of Furthermore, in the present embodiment, the influence of the interference wave can be avoided by changing to another channel that can be used depending on the data length that can be communicated and changing to a line that can reliably communicate. . In the present embodiment, as the wireless transmission speed increases, the amount of data increases even if the transmission interval is short due to the influence of interference waves, so that effective data communication can be performed.

送信側において妨害波の影響がなく、受信側のみ無線回線状況が悪化した場合においても、送信側にて受信側の応答を一定時間認識し、受信側の応答がない場合に使用可能な他のチャネルへの変更を行うことで、妨害波を回避することができる。   Even if the transmitter side is not affected by the interference wave and only the receiver side is deteriorated in the radio link status, the receiver side recognizes the response on the receiver side for a certain period of time and can be used when there is no response on the receiver side. Interference can be avoided by changing the channel.

本発明の一実施例による無線機の構成を示すブロック図である。It is a block diagram which shows the structure of the radio | wireless machine by one Example of this invention. 本発明の一実施例による無線データ通信システムの構成例を示すブロック図である。It is a block diagram which shows the structural example of the radio | wireless data communication system by one Example of this invention. 図１に示す妨害波電界強度モニタ部による妨害波の電界強度のモニタ動作を示す図である。It is a figure which shows the monitoring operation | movement of the electric field strength of the jamming wave by the jamming wave electric field strength monitoring part shown in FIG. 本発明の一実施例による無線機による妨害波の電界強度のモニタ動作を示すフローチャートである。It is a flowchart which shows the monitoring operation | movement of the electric field strength of the interference wave by the radio | wireless machine by one Example of this invention. 本発明の一実施例による無線データ通信システムにおけるデータ長の可変処理を示す図である。It is a figure which shows the variable process of the data length in the radio | wireless data communication system by one Example of this invention. 本発明の一実施例による無線データ通信システムにおけるチャネル変更処理を示す図である。It is a figure which shows the channel change process in the radio | wireless data communication system by one Example of this invention.

符号の説明Explanation of symbols

１，２ 無線機
１１ ＣＰＵ
１２ メインメモリ
１２ａ 制御プログラム
１３ 記憶装置
１４ 無線通信制御部
１５ アンテナ
１６ 妨害波電界強度モニタ部
１００ 内部バス
１０１，１０２ 妨害波
１３１ 送信データ長保持部
１３２ チャネル情報保持部 1, 2 radio
11 CPU
12 Main memory
12a Control program
13 Storage device
14 Wireless communication controller
15 Antenna
16 Interference wave field strength monitor
100 Internal bus 101, 102 Interference wave
131 Transmission data length holding unit
132 Channel information holding unit

Claims (19)

送信側の無線機から送信された無線データを受信側の無線機にて受取る無線データ通信システムであって、
前記無線機は、送信側及び受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタするモニタ手段と、前記モニタ手段のモニタ結果を基に前記妨害波の発生間隔を検知する検知手段と、前記検知手段で検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する送出手段とを有することを特徴とする無線データ通信システム。 A wireless data communication system for receiving wireless data transmitted from a transmitting-side radio by a receiving-side radio,
The radio includes a monitoring unit that monitors the electric field strength of the jamming wave when a radio link condition deteriorates at least on the transmission side and the receiving side, and the generation of the jamming wave based on the monitoring result of the monitoring unit. A wireless data communication system comprising: detecting means for detecting an interval; and transmitting means for transmitting the wireless data at a timing at which the interference wave is not transmitted based on an occurrence interval detected by the detecting means. . 前記無線機は、送出する無線データのデータ長を前記妨害波の発生していない間隔に合わせて設定する手段を含むことを特徴とする請求項１記載の無線データ通信システム。   2. The wireless data communication system according to claim 1, wherein said wireless device includes means for setting a data length of wireless data to be transmitted in accordance with an interval at which said interference wave is not generated. 前記モニタ手段は、少なくとも前記妨害波によって無線回線が継続的に悪化した場合に使用可能な他の通信チャネルの電界強度をモニタし、
前記送出手段は、前記モニタ手段のモニタ結果を基に前記無線データを送出するチャネルを他のチャネルへ変更することを特徴とする請求項１または請求項２記載の無線データ通信システム。 The monitoring means monitors the electric field strength of another communication channel that can be used when a radio line is continuously deteriorated by at least the interference wave,
The wireless data communication system according to claim 1 or 2, wherein the sending means changes a channel for sending the wireless data to another channel based on a monitoring result of the monitoring means. 前記送信側の無線機は、前記受信側から応答がない場合に前記無線データを送出するチャネルを他のチャネルへ変更することを特徴とする請求項１から請求項３のいずれか記載の無線データ通信システム。   4. The wireless data according to claim 1, wherein the wireless device on the transmitting side changes a channel for transmitting the wireless data to another channel when there is no response from the receiving side. 5. Communications system. 前記受信側の無線機は、前記電界強度レベルをモニタし、前記無線データを受信するまで使用可能な他のチャネルをスキャンすることを特徴とする請求項１から請求項４のいずれか記載の無線データ通信システム。   5. The radio according to claim 1, wherein the radio device on the receiving side monitors the electric field intensity level and scans another usable channel until the radio data is received. Data communication system. 前記送信側の無線機は、前記受信側の無線機から正常応答があるまで前記無線データを送出することを特徴とする請求項１から請求項５のいずれか記載の無線データ通信システム。   6. The wireless data communication system according to claim 1, wherein the wireless device on the transmission side transmits the wireless data until there is a normal response from the wireless device on the reception side. 送信側から送信された無線データを受信側にて受取る無線機であって、
前記送信側及び前記受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタするモニタ手段と、前記モニタ手段のモニタ結果を基に前記妨害波の発生間隔を検知する検知手段と、前記検知手段で検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する送出手段とを有することを特徴とする無線機。 A wireless device that receives wireless data transmitted from the transmitting side at the receiving side,
Monitor means for monitoring the electric field strength of the disturbing wave when radio channel conditions deteriorate due to the disturbing wave at least on the transmitting side and the receiving side, and detecting the occurrence interval of the disturbing wave based on the monitoring result of the monitoring means And a transmission means for transmitting the wireless data at a timing at which the interference wave is not transmitted based on the generation interval detected by the detection means. 送出する無線データのデータ長を前記妨害波の発生していない間隔に合わせて設定する手段を含むことを特徴とする請求項７記載の無線機。   8. The radio apparatus according to claim 7, further comprising means for setting a data length of radio data to be transmitted in accordance with an interval at which the interference wave is not generated. 前記モニタ手段は、少なくとも前記妨害波によって無線回線が継続的に悪化した場合に使用可能な他の通信チャネルの電界強度をモニタし、
前記送出手段は、前記モニタ手段のモニタ結果を基に前記無線データを送出するチャネルを他のチャネルへ変更することを特徴とする請求項７または請求項８記載の無線機。 The monitoring means monitors the electric field strength of another communication channel that can be used when a radio line is continuously deteriorated by at least the interference wave,
9. The wireless device according to claim 7, wherein the sending means changes a channel for sending the wireless data to another channel based on a monitoring result of the monitoring means. 前記送信側において、前記受信側から応答がない場合に前記無線データを送出するチャネルを他のチャネルへ変更することを特徴とする請求項７から請求項９のいずれか記載の無線機。   10. The wireless device according to claim 7, wherein, on the transmitting side, when there is no response from the receiving side, the channel for transmitting the wireless data is changed to another channel. 11. 前記受信側において、前記電界強度レベルをモニタし、前記無線データを受信するまで使用可能な他のチャネルをスキャンすることを特徴とする請求項７から請求項１０のいずれか記載の無線機。   The radio apparatus according to any one of claims 7 to 10, wherein the reception side monitors the electric field intensity level and scans another channel that can be used until the radio data is received. 前記送信側において、前記受信側から正常応答があるまで前記無線データを送出することを特徴とする請求項７から請求項１１のいずれか記載の無線機。   12. The wireless device according to claim 7, wherein the transmitting side transmits the wireless data until a normal response is received from the receiving side. 送信側の無線機から送信された無線データを受信側の無線機にて受取る無線データ通信システムに用いられる伝送路回避方法であって、
前記無線機が、送信側及び受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタする第１の処理と、前記第１の処理のモニタ結果を基に前記妨害波の発生間隔を検知する第２の処理と、前記第２の処理で検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する第３の処理とを実行することを特徴とする伝送路回避方法。 A transmission path avoidance method used in a wireless data communication system for receiving wireless data transmitted from a transmitting wireless device by a receiving wireless device,
The wireless device has a first process for monitoring the electric field strength of the jamming wave when a radio channel condition deteriorates at least on the transmission side and the receiving side due to the jamming wave, and based on the monitoring result of the first process, A second process for detecting an occurrence interval of an interference wave, and a third process for transmitting the wireless data at a timing at which the interference wave is not transmitted based on the occurrence interval detected in the second process. A transmission path avoidance method characterized in that it is executed. 前記無線機が、送出する無線データのデータ長を前記妨害波の発生していない間隔に合わせて設定する処理を実行することを特徴とする請求項１３記載の伝送路回避方法。   14. The transmission path avoidance method according to claim 13, wherein the radio unit executes a process of setting a data length of radio data to be transmitted in accordance with an interval at which the interference wave is not generated. 前記第１の処理は、少なくとも前記妨害波によって無線回線が継続的に悪化した場合に使用可能な他の通信チャネルの電界強度をモニタし、
前記第３の処理は、前記第１の処理のモニタ結果を基に前記無線データを送出するチャネルを他のチャネルへ変更することを特徴とする請求項１３または請求項１４記載の伝送路回避方法。 The first process monitors the electric field strength of another communication channel that can be used when a wireless line is continuously deteriorated by at least the interference wave,
15. The transmission path avoidance method according to claim 13, wherein the third process changes a channel for transmitting the wireless data to another channel based on a monitoring result of the first process. . 前記送信側の無線機が、前記受信側から応答がない場合に前記無線データを送出するチャネルを他のチャネルへ変更することを特徴とする請求項１３から請求項１５のいずれか記載の伝送路回避方法。   The transmission path according to any one of claims 13 to 15, wherein the transmitting-side radio changes a channel for transmitting the radio data to another channel when there is no response from the receiving side. Workaround method. 前記受信側の無線機が、前記電界強度レベルをモニタし、前記無線データを受信するまで使用可能な他のチャネルをスキャンすることを特徴とする請求項１３から請求項１６のいずれか記載の伝送路回避方法。   The transmission according to any one of claims 13 to 16, wherein the receiving-side radio monitors the electric field strength level and scans another usable channel until the radio data is received. Road avoidance method. 前記送信側の無線機が、前記受信側の無線機から正常応答があるまで前記無線データを送出することを特徴とする請求項１３から請求項１７のいずれか記載の伝送路回避方法。   18. The transmission path avoidance method according to claim 13, wherein the transmitting-side radio transmits the radio data until there is a normal response from the receiving-side radio. 送信側の無線機から送信された無線データを受信側の無線機にて受取る無線データ通信システムに用いられる伝送路回避方法のプログラムであって、
コンピュータに、送信側及び受信側で少なくとも妨害波によって無線回線状況が悪化した場合に前記妨害波の電界強度をモニタする処理と、そのモニタ結果を基に前記妨害波の発生間隔を検知する処理と、この検知された発生間隔を基に前記妨害波の送出されていないタイミングで前記無線データを送出する処理とを実行させるためのプログラム。 A program of a transmission path avoidance method used in a wireless data communication system for receiving wireless data transmitted from a transmitting-side radio by a receiving-side radio,
A process of monitoring the electric field strength of the jamming wave when the radio line condition deteriorates at least on the transmitting side and the receiving side due to the jamming wave; and a process of detecting the occurrence interval of the jamming wave based on the monitoring result A program for executing the process of transmitting the wireless data at a timing when the interference wave is not transmitted based on the detected generation interval.
JP2005167609A 2005-06-08 2005-06-08 RADIO DATA COMMUNICATION SYSTEM, RADIO DEVICE, TRANSMISSION AVOIDING METHOD USED FOR THEM, AND PROGRAM THEREOF Active JP4382704B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005167609A JP4382704B2 (en) 2005-06-08 2005-06-08 RADIO DATA COMMUNICATION SYSTEM, RADIO DEVICE, TRANSMISSION AVOIDING METHOD USED FOR THEM, AND PROGRAM THEREOF

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005167609A JP4382704B2 (en) 2005-06-08 2005-06-08 RADIO DATA COMMUNICATION SYSTEM, RADIO DEVICE, TRANSMISSION AVOIDING METHOD USED FOR THEM, AND PROGRAM THEREOF

Publications (2)

Publication Number Publication Date
JP2006345120A true JP2006345120A (en) 2006-12-21
JP4382704B2 JP4382704B2 (en) 2009-12-16

Family

ID=37641755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005167609A Active JP4382704B2 (en) 2005-06-08 2005-06-08 RADIO DATA COMMUNICATION SYSTEM, RADIO DEVICE, TRANSMISSION AVOIDING METHOD USED FOR THEM, AND PROGRAM THEREOF

Country Status (1)

Country Link
JP (1) JP4382704B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013211815A (en) * 2012-02-29 2013-10-10 Panasonic Corp Measurement information collecting system, radio node, and radio node communication method and program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013211815A (en) * 2012-02-29 2013-10-10 Panasonic Corp Measurement information collecting system, radio node, and radio node communication method and program

Also Published As

Publication number Publication date
JP4382704B2 (en) 2009-12-16

Similar Documents

Publication Publication Date Title
EP2340629B1 (en) Cooperative transmission in wireless communication system
US20020168946A1 (en) Radio communication apparatus and communication method
RU2013112912A (en) CONTROL MESSAGES OF CONFIRMATION FROM MULTIPLE DESTINATIONS FOR MULTIPLE MIMO TRANSMISSIONS
CN104581962B (en) A kind of method and apparatus of link circuit self-adapting
Slingerland et al. Performance of transport control protocol over dynamic spectrum access links
US7697890B2 (en) Communication device and communication system
JP2012074765A (en) Radio equipment, communication failure countermeasure method and communication failure countermeasure program
JP2006238158A (en) Radio communications system, base station control apparatus, radio terminal, and radio communications method
WO2018028675A1 (en) Random access signal configuration method, apparatus, device, system and storage medium
CN105519032B (en) Improved adaptation of transmission parameters
US8160635B2 (en) Communication network system and communication method thereof
JP2006237875A (en) Radio communication apparatus and radio communication system using the same
JP4382704B2 (en) RADIO DATA COMMUNICATION SYSTEM, RADIO DEVICE, TRANSMISSION AVOIDING METHOD USED FOR THEM, AND PROGRAM THEREOF
JP2015041821A (en) Communication device, control method, and program
JP2011097155A (en) Radio communication system and control method for radio communication system
US8644267B2 (en) Wireless communication system and method of calling terminal
JP3648974B2 (en) Wireless communication device
JP2019009602A (en) Wireless communication device and wireless communication method
JP4938509B2 (en) Wireless device, wireless communication system, module, transmission method, and reception method
JP2010098766A (en) Receiving apparatus, receiving method, wireless communication system, and communication method
JP4425050B2 (en) Wireless communication system
JP2009060362A (en) Relay wireless apparatus, relay wireless method and program
WO2017217277A1 (en) Communication device, communication method, program, and communication system
JP2008167487A (en) Csma-based data transmission method and system
JP3966081B2 (en) Communication control system and communication system

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20081006

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20081014

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081215

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090908

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090917

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121002

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150