JPH11154885A - Radio transmitting and receiving method - Google Patents
Radio transmitting and receiving methodInfo
- Publication number
- JPH11154885A JPH11154885A JP10204601A JP20460198A JPH11154885A JP H11154885 A JPH11154885 A JP H11154885A JP 10204601 A JP10204601 A JP 10204601A JP 20460198 A JP20460198 A JP 20460198A JP H11154885 A JPH11154885 A JP H11154885A
- Authority
- JP
- Japan
- Prior art keywords
- transmission
- radio
- reception
- channel
- communication
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、無線送受信方法に
関する。特に、情報処理システムの端末間で双方向に通
信が可能な無線送受信方法に関する。The present invention relates to a radio transmission / reception method. In particular, the present invention relates to a wireless transmission / reception method capable of performing bidirectional communication between terminals of an information processing system.
【０００２】[0002]
【従来の技術】図２は従来例の無線データ伝送方式の全
体図であり、複数のパソコン、プリンタ等の端末間の通
信を無線を介して同時に双方向の送受信が可能な全二重
通信で伝送する方式である。図２において、端末１は１
台毎に１台の無線モデム装置１０が接続されて組を成し
ており、無線モデム装置１０には無線チャネルｆ1 ，ｆ
2 ，…が送信波、無線チャネルＦ1 ，Ｆ2 ，…が受信波
となる型と、送受信波が全く逆（無線チャネルｆ1 ，ｆ
2 ，…が受信波、無線チャネルＦ1 ，Ｆ2 ，…が送信
波）な型との２種類から構成される。図２の端末局Ａは
無線チャネルｆ1 を送信波、無線チャネルＦ1 を受信波
として送受信波が逆の端末局Ｂおよび端末局Ｃと通信し
ている。2. Description of the Related Art FIG. 2 is an overall view of a conventional wireless data transmission system, in which communication between terminals such as a plurality of personal computers and printers is performed by full-duplex communication capable of simultaneously performing bidirectional transmission and reception via radio. This is a transmission method. In FIG. 2, terminal 1 is 1
One wireless modem device 10 is connected to each device to form a set, and the wireless modem device 10 has wireless channels f 1 , f
2, ... is transmitted waves, radio channels F 1, F 2, and types ... is received wave, reverse transmission and reception waves at all (radio channels f 1, f
2, ... are received wave, the radio channel F 1, F 2, ... is composed of two types of transmission wave) type. The terminal station A in Figure 2 wave transmits a radio channel f 1, transmitting and receiving wave is communicating with opposite terminal station B and the terminal station C to the radio channel F 1 as a reception wave.
【０００３】ここで使用している無線チャネルｆ1 ，Ｆ
1 は無線モデム装置１０が具備している複数チャネルの
うち、混信が起こらないように空きチャネルを操作者が
判断した後に、手動にて設定していた。端末局Ｄと端末
局Ｅとの間の無線チャネルｆ2 ，Ｆ2 による通信も同様
に操作者により手動設定後に行われていた。The radio channels f 1 and F used here
No. 1 is manually set after an operator determines an empty channel from among a plurality of channels provided in the wireless modem device 10 so that interference does not occur. Communication between the terminal stations D and E via the wireless channels f 2 and F 2 has also been performed after manual setting by the operator.
【０００４】[0004]
【発明が解決しようとする課題】しかし、このような従
来の無線データ伝送方式では、端末局Ａ〜Ｄが無線チャ
ネルｆ1 ，ｆ2 ，…を送信波、無線チャネルＦ1 ，Ｆ
2 ，…を受信波とする型（端末局Ａ、Ｄ）と、送受信波
を逆とした型（端末局Ｂ、Ｃ、Ｅ）の２種類に分かれて
いるため、異なる型の無線モデム装置１０に接続された
端末間の通信はできるが、同一の型に接続された端末間
の通信はできない欠点があった。すなわち、端末局Ａと
端末局Ｄとの間、または端末局Ｂ、Ｃ、Ｅの相互間では
通信不可能であった。また、通信に使用する無線チャネ
ルは、操作者が混信のないように判断した後に手動にて
設定しなければならないので、操作が煩雑になる欠点が
あった。[0008] However, in such a conventional wireless data transmission system, the terminal station A~D radio channels f 1, f 2, transmission wave ..., radio channels F 1, F
2, since the type of a reception wave ... (terminal station A, D), are divided into two types in which the transmitting and receiving wave and reverse (terminal station B, C, E), different types of wireless modem device 10 Although communication between terminals connected to the same type can be performed, communication between terminals connected to the same type cannot be performed. That is, communication was not possible between the terminal stations A and D or between the terminal stations B, C, and E. In addition, the radio channel used for communication must be manually set after the operator has determined that there is no interference.
【０００５】本発明は上記の欠点を解決するもので、い
ずれの端末間でも自動的に送受信用無線チャネルを設定
し同時に双方向に通信を行うことができる無線送受信方
法を提供することを目的とする。An object of the present invention is to provide a radio transmission / reception method capable of automatically setting a transmission / reception radio channel between any terminals and simultaneously performing two-way communication. I do.
【０００６】[0006]
【課題を解決するための手段】本発明の無線送受信方法
は端末間にて通信を行う無線送受信方法において、各端
末は、発呼時に、自己アドレスと、相手アドレスとを制
御チャンネルにて相手端末に送信した後、通信チャネル
にて端末間通信を行うことを特徴とする。また、前記各
端末は、少なくとも一組の無線周波数、および少なくと
も一つの制御チャンネルの周波数のいずれの無線周波数
でも送受信可能な送受信手段を有することが好ましい。
さらに、前記各端末は、前記一組の無線周波数のうち一
方の無線周波数で無線信号を送信する一方、他方の無線
周波数で無線信号を受信し、前記相手端末は、前記他方
の無線周波数で無線信号を送信する一方、前記一方の無
線周波数で無線信号を受信することが好ましい。A wireless transmitting / receiving method according to the present invention is a wireless transmitting / receiving method for performing communication between terminals, wherein each terminal transmits its own address and a destination address over a control channel at the time of calling. After that, communication between terminals is performed through a communication channel. Further, it is preferable that each of the terminals has a transmission / reception means capable of transmitting / receiving at least one of a set of radio frequencies and a frequency of at least one control channel.
Further, each terminal transmits a radio signal at one radio frequency of the set of radio frequencies, receives a radio signal at the other radio frequency, and the other terminal transmits a radio signal at the other radio frequency. Preferably, while transmitting the signal, receiving a radio signal at said one radio frequency.
【０００７】本発明は、各端末に二つ一組の無線周波数
および制御チャネル周波数のいずれの無線周波数でも送
受信可能な送受信部を設け、制御部で制御チャネルを用
いて回線接続を行うように送受信部を制御し、空きにな
っている二つ一組の無線周波数の一つを選択して通話チ
ャネルとして設定するように送受信部を制御することに
より、いずれの端末でも自動的に送受信用無線チャネル
を設定し同時に双方向に通信を行うことができる。According to the present invention, each terminal is provided with a transmission / reception unit capable of transmitting / receiving any pair of radio frequencies and a control channel frequency, and the control unit transmits / receives signals so as to perform line connection using a control channel. By controlling the transmitter / receiver so that one of the two sets of vacant radio frequencies is selected and set as a communication channel, any terminal can automatically transmit and receive radio channels. Can be set, and two-way communication can be performed at the same time.
【０００８】[0008]
【発明の実施の形態】本発明の実施例について図面を参
照して説明する。Embodiments of the present invention will be described with reference to the drawings.
【０００９】図１は本発明一実施例の無線送受信方法の
ブロック構成図である。図１において、発呼端末局では
端末１と音声通話送受器、種々のキーおよび表示器を備
え、発着呼操作、相手アドレスの設定、シリアルインタ
フェイスデータ伝送スピードおよび無線区間のデータ伝
送スピード等の設定を行うダイヤルインハンドセット２
とがそれぞれ制御部３に接続され、通話またはデータ伝
送の識別および相手アドレス等の情報を与えられる。制
御部３は空きチャネルを検索し空きチャネルが見つかる
と制御部３から通話チャネル情報、通話またはデータ伝
送識別情報および自己ならびに相手アドレスを含む発呼
信号が周波数ｆ1 ，ｆ2 ，…およびＦ1，Ｆ2 ，…の二
つのバンドで送信ができそのうちの一つが回線接続用の
制御チャネルに設定されている送信部４に接続される。
送信部４から変調された発呼信号が共用器６を経て空中
線７により送出される。送出後制御部３からの制御信号
が送信部４および受信部５に接続され送信部４および受
信部５は上記空き通話チャネルにそれぞれ切換えられ
る。FIG. 1 is a block diagram of a radio transmission / reception method according to an embodiment of the present invention. In FIG. 1, the calling terminal station is provided with a terminal 1, a voice communication handset, various keys and a display, and performs operations such as calling and receiving operations, setting of a destination address, serial interface data transmission speed and data transmission speed in a wireless section. Dial-in handset 2 for setting
Are respectively connected to the control unit 3 and are given information such as the identification of a call or data transmission and the address of the other party. The control unit 3 traffic channel information from the control unit 3 and finds a free channel searches a free channel, call or data transmission identification information and self and frequency f 1 the calling signal containing the destination address, f 2, ..., and F 1 , F 2 ,..., And one of them is connected to the transmitting unit 4 set to the control channel for line connection.
The modulated calling signal is transmitted from the transmitting unit 4 via the duplexer 6 and the antenna 7. After the transmission, the control signal from the control unit 3 is connected to the transmission unit 4 and the reception unit 5, and the transmission unit 4 and the reception unit 5 are switched to the idle communication channels, respectively.
【００１０】一方、着呼局では発呼局からの発呼信号が
空中線７′に入力し、共用器６′を介して周波数ｆ1 ，
ｆ2 ，…および周波数Ｆ1 ，Ｆ2 ，…の二つのバンドで
受信することができ、そのうちの一つが回線用接続用の
制御チャネルに設定されている受信部５′に接続され
る。受信部５′で復調された発呼信号が制御部３′に接
続される。制御部３′から発呼信号の相手アドレスと自
己のアドレスとが一致すると制御信号が送信部４′およ
び受信部５′に接続され、送信部４′および受信部５′
はそれぞれ発呼局とは送受信波が逆の上記通話チャネル
にそれぞれ切換えられる。制御部３′から送信部４′、
共用器６′および空中線７′を経由して発呼局に発呼応
答信号が返送される。また制御部３′から制御信号がデ
ータ伝送モードによる発呼であればシリアルインタフェ
イスにより端末１′に接続されて着呼した旨が伝達さ
れ、また通話モードによる発呼であれば制御信号がダイ
ヤルインハンドセット２′に接続されて、呼出音が鳴動
される。On the other hand, at the called station, a calling signal from the calling station is input to the antenna 7 ', and the frequency f 1 ,
f 2, ..., and frequencies F 1, F 2, can be received in ... two bands, one of which is connected to the receiving part 5 'which is set in the control channel for connecting lines. The calling signal demodulated by the receiving unit 5 'is connected to the control unit 3'. When the destination address of the call signal and the own address match from the control unit 3 ', the control signal is connected to the transmission unit 4' and the reception unit 5 ', and the transmission unit 4' and the reception unit 5 '
Are respectively switched to the above-mentioned communication channels, the transmission and reception waves of which are opposite to those of the calling station. From the control unit 3 'to the transmission unit 4',
A call response signal is returned to the calling station via the duplexer 6 'and the antenna 7'. If the control signal is a call in the data transmission mode from the control unit 3 ', it is connected to the terminal 1' by a serial interface to notify that the call has been received. If the call is in the call mode, the control signal is dialed. Connected to the in-handset 2 ', a ringing tone sounds.
【００１１】一方上記通話チャネルで待ち受けている発
呼局では、発呼応答信号が空中線７および共用器６を介
して受信部５に接続され、受信部５から復調された発呼
応答信号が制御部３に接続される。制御部３から制御信
号がデータ伝送モードのときは端末１へ、通話モードの
ときはダイヤルインハンドセットに接続され回線が確立
された旨が伝達され、通信が開始される。On the other hand, in the calling station waiting on the above-mentioned communication channel, the call response signal is connected to the receiver 5 via the antenna 7 and the duplexer 6, and the call response signal demodulated from the receiver 5 is controlled. Connected to section 3. When the control signal is in the data transmission mode, the control unit 3 informs the terminal 1 that it is connected to the dial-in handset when the communication signal is in the communication mode, and the communication is started.
【００１２】このような無線データ通信装置の動作につ
いて説明する。The operation of such a wireless data communication device will be described.
【００１３】発呼の起動は端末１またはダイヤルインハ
ンドセット２から行われ、通話またはデータ伝送の識別
および相手アドレス等の情報が制御部３に与えられる。A call is activated from the terminal 1 or the dial-in handset 2 and information such as identification of a call or data transmission and a destination address is given to the control unit 3.
【００１４】制御部３は発呼要求されるとまず空きチャ
ネルを検索に行き、空きチャネルが見つかると通話チャ
ネル情報、通話またはデータの伝送識別情報および自己
および相手アドレスを含む発呼信号を送信部４に与え
る。送信部４は、その送信周波数があらかじめ決められ
ている制御チャネルに設定されている。送信部４から変
調された発呼信号が共用器６を通り空中線７より電波と
して送出される。その後制御部３は送信部４および受信
部５を着呼局に指定した空き通話チャネルに切換え、着
呼局からの発呼応答信号を待ち受ける。When a call request is made, the control unit 3 first searches for a free channel, and when a free channel is found, the control unit 3 transmits a call signal including call channel information, call or data transmission identification information, and self and partner addresses. Give to 4. The transmission unit 4 has its transmission frequency set to a predetermined control channel. The modulated calling signal from the transmitting unit 4 passes through the duplexer 6 and is transmitted from the antenna 7 as radio waves. Thereafter, the control unit 3 switches the transmitting unit 4 and the receiving unit 5 to an idle communication channel designated as the called station, and waits for a call response signal from the called station.
【００１５】一方、制御チャネルにて待受状態にある着
呼局では空中線７′、共用器６′を経由して受信部５′
で発呼信号を受信すると制御部３′にて信号の解読が行
われる。アドレスが一致すると、指定通話チャネルが空
きであることを確認後に、送信部５′、受信部４′を発
呼局とは送受信が逆の通話チャネルに切換える。すなわ
ち、二つの周波数を一組とするチャネルのうち、一方を
送信用、他方を受信用とするが、その選択は対向局では
互いに反対になる。次に発呼局に対して発呼応答信号を
返送する。ここでデータ伝送モードによる発呼であれ
ば、シリアルインタフェイスにより端末１′へ着呼した
旨を伝達し、通話モードによる発呼であればダイヤルイ
ンハンドセット２′にて呼出音を鳴動させて、通信が開
始される。On the other hand, at the called station in a standby state on the control channel, the receiving section 5 'is transmitted via the antenna 7' and the duplexer 6 '.
When the call signal is received at the control unit 3 ', the control unit 3' decodes the signal. If the addresses match, after confirming that the designated communication channel is vacant, the transmitting unit 5 'and the receiving unit 4' are switched to the communication channel whose transmission and reception are opposite to those of the calling station. In other words, one of the channels having a pair of two frequencies is used for transmission and the other is used for reception, but the selection is opposite in the opposite station. Next, a call response signal is returned to the calling station. Here, if the call is in the data transmission mode, the fact that the call has been received is transmitted to the terminal 1 'through the serial interface, and if the call is in the call mode, the dial-in handset 2' sounds a ringing tone. Communication starts.
【００１６】一方、通話チャネルにて待ち受けている発
呼局は着呼局からの発呼応答信号を受信部４にて受信
し、制御部３にて発呼応答信号に誤りのないことが確認
されると、上記着呼局と同様にデータ伝送モードのとき
は端末１へ、通話モードのときはダイヤルインハンドセ
ット２へ回線確立が成されたことを伝達し、その後通信
が開始される。On the other hand, the calling station waiting on the communication channel receives the call response signal from the called station in the receiving section 4, and the control section 3 confirms that the call response signal is free from errors. Then, as in the case of the called station, the fact that the line has been established is transmitted to the terminal 1 in the data transmission mode and to the dial-in handset 2 in the call mode, and thereafter the communication is started.
【００１７】ここで発呼局と着呼局との送受信チャネル
を逆にする方法として、この実施例では着呼局が発呼局
の通話送受信チャネルの逆になるように設定している
が、逆に発呼局が着呼局の送受信チャネルの逆にあるよ
うに設定することも可能である。Here, as a method of reversing the transmission / reception channel between the calling station and the called station, in this embodiment, the called station is set to be the opposite of the transmission / reception channel of the calling station. Conversely, it is possible to set the calling station to be opposite to the transmission / reception channel of the called station.
【００１８】次に回線接続後の端末間のデータ通信にお
けるトランスペアレントモードと誤り制御モードとにつ
いて説明する。トランスペアレントなるデータ伝送と
は、端末が送受するデータに対し無線モデム装置は通信
路を提供後は、ただ受動的な動作を行うだけで、無線通
信路におけるデータフォーマットは端末が送受するデー
タフォーマットそのままであることをいう。しかし、高
速のマルチバスフェージングが起こる無線通信路では、
有線通信路に比べるとビットエラーレイトが悪い。した
がって、頻繁にデータ誤りが発生することを考慮されて
いない端末では、そのデータ伝送における信頼度が低下
するので、その対策として誤り制御が必要となる。誤り
制御方式にはＦＥＣ（自己誤り訂正）方式、ＡＲＱ（誤
り検出再送）方式およびＨＤＬＣ（ハイレベルデータリ
ンク制御手順）方式等数多くなるが、いずれにしてもこ
の実施例では端末１で送受されるデータは制御部３によ
っていずれかの誤り制御プロトコルのもとで伝送され
る。Next, a transparent mode and an error control mode in data communication between terminals after line connection will be described. Transparent data transmission means that after a wireless modem device provides a communication path for data transmitted and received by a terminal, it only performs a passive operation, and the data format in the wireless communication path remains the same as the data format transmitted and received by the terminal. It means something. However, in wireless communication channels where high-speed multi-bus fading occurs,
The bit error rate is worse than that of a wired communication path. Therefore, in a terminal that does not consider the occurrence of frequent data errors, the reliability of the data transmission is reduced, and error control is required as a countermeasure. There are many error control systems such as an FEC (self error correction) system, an ARQ (error detection and retransmission) system, and an HDLC (high-level data link control procedure) system. The data is transmitted by the control unit 3 under any error control protocol.
【００１９】[0019]
【発明の効果】本発明は、以上説明したように、いずれ
の端末間でも自動的に送受信用無線チャネルを設定し双
方向に通信を行うことができる優れた効果がある。した
がって、無線ローカルエリアネットワークに実施すれば
効果が大である。As described above, the present invention has an excellent effect that any one of the terminals can automatically set a transmission / reception radio channel and perform bidirectional communication. Therefore, the effect is great if implemented in a wireless local area network.
【図１】本発明一実施例の無線送受信方法の端末局のブ
ロック構成図である。FIG. 1 is a block diagram of a terminal station in a wireless transmission / reception method according to an embodiment of the present invention.
【図２】従来例の無線送受信方法を説明する図である。FIG. 2 is a diagram illustrating a conventional wireless transmission / reception method.
１ 端末 ２ ダイヤルインハンドセット ３ 制御部 ４ 送信部 ５ 受信部 ６ 共用器 ７ 空中線 Ａ〜Ｄ 端末局 Reference Signs List 1 terminal 2 dial-in handset 3 control unit 4 transmitting unit 5 receiving unit 6 duplexer 7 antenna A to D terminal station
Claims (3)
おいて、各端末は、発呼時に、自己アドレスと、相手ア
ドレスとを制御チャンネルにて相手端末に送信した後、
通信チャネルにて端末間通信を行うことを特徴とする無
線送受信方法。In a wireless transmission / reception method for performing communication between terminals, each terminal transmits its own address and a partner address to a partner terminal on a control channel when calling.
A wireless transmission / reception method comprising performing communication between terminals using a communication channel.
波数、および少なくとも一つの制御チャンネルの周波数
のいずれの無線周波数でも送受信可能な送受信手段を有
することを特徴とする請求項１記載の無線送受信方法。2. The wireless transmission / reception device according to claim 1, wherein each of the terminals has transmission / reception means capable of transmitting / receiving at least one of a set of radio frequencies and a frequency of at least one control channel. Method.
うち一方の無線周波数で無線信号を送信する一方、他方
の無線周波数で無線信号を受信し、 前記相手端末は、前記他方の無線周波数で無線信号を送
信する一方、前記一方の無線周波数で無線信号を受信す
ることを特徴とする請求項２記載の無線送受信方法。3. Each of the terminals transmits a radio signal at one radio frequency of the set of radio frequencies, receives a radio signal at the other radio frequency, and the other terminal transmits the radio signal at the other radio frequency. The wireless transmission / reception method according to claim 2, wherein the wireless signal is transmitted at a frequency and the wireless signal is received at the one wireless frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10204601A JPH11154885A (en) | 1985-01-24 | 1998-07-21 | Radio transmitting and receiving method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60012050A JPS61171229A (en) | 1985-01-24 | 1985-01-24 | Radio data transmission system |
| JP10204601A JPH11154885A (en) | 1985-01-24 | 1998-07-21 | Radio transmitting and receiving method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60012050A Division JPS61171229A (en) | 1985-01-24 | 1985-01-24 | Radio data transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11154885A true JPH11154885A (en) | 1999-06-08 |
Family
ID=11794768
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60012050A Pending JPS61171229A (en) | 1985-01-24 | 1985-01-24 | Radio data transmission system |
| JP10204601A Pending JPH11154885A (en) | 1985-01-24 | 1998-07-21 | Radio transmitting and receiving method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60012050A Pending JPS61171229A (en) | 1985-01-24 | 1985-01-24 | Radio data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (2) | JPS61171229A (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS604052B2 (en) * | 1981-01-30 | 1985-02-01 | 日東電工株式会社 | How to coat articles |
| JPS5921274A (en) * | 1982-07-28 | 1984-02-03 | Hitachi Ltd | Power converter |
| JPS5951473A (en) * | 1982-09-17 | 1984-03-24 | Sanyo Electric Co Ltd | Non-aqueous electrolyte cell |
| JPS59139737A (en) * | 1983-01-31 | 1984-08-10 | Anritsu Corp | Signal generator |
| JPS604337A (en) * | 1983-06-22 | 1985-01-10 | Kunzo Michikawa | Simultaneously calling transceiver of frequency automatic switching type |
-
1985
- 1985-01-24 JP JP60012050A patent/JPS61171229A/en active Pending
-
1998
- 1998-07-21 JP JP10204601A patent/JPH11154885A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61171229A (en) | 1986-08-01 |
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| A02 | Decision of refusal |
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