JP3207670B2 - Communication method - Google Patents
Communication methodInfo
- Publication number
- JP3207670B2 JP3207670B2 JP09516894A JP9516894A JP3207670B2 JP 3207670 B2 JP3207670 B2 JP 3207670B2 JP 09516894 A JP09516894 A JP 09516894A JP 9516894 A JP9516894 A JP 9516894A JP 3207670 B2 JP3207670 B2 JP 3207670B2
- Authority
- JP
- Japan
- Prior art keywords
- base station
- random number
- communication
- station
- notification
- 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
Landscapes
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、無線もしくはバス結合
等された通信システムに於いて、１：Ｎの通信を実現す
る通信方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication method for realizing 1: N communication in a wireless or bus-connected communication system.
【０００２】[0002]
【従来の技術】従来、基地局と複数の二次局とが、無
線、赤外線あるいはバス結合された通信システムでは、
二次局同士の通信の衝突防止や通信相手の識別のため
に、二次局それぞれにアドレス設定装置（スイッチな
ど）を設けて、そのアドレス設定装置により二次局のア
ドレス設定を行っている。アドレスの設定は、通信開始
後に設定するのではなく、予めアドレス設定装置により
各々重複しないアドレスを与えるものである。また、前
述のようなアドレス設定装置を持たない機器に関して
は、通信は基本的に１：１の通信に限られる。2. Description of the Related Art Conventionally, in a communication system in which a base station and a plurality of secondary stations are connected by radio, infrared or bus,
In order to prevent communication collision between the secondary stations and identify the communication partner, an address setting device (such as a switch) is provided for each secondary station, and the address setting device sets the address of the secondary station. The address is not set after the start of communication, but is given in advance by the address setting device with a unique address. In addition, for devices that do not have an address setting device as described above, communication is basically limited to 1: 1 communication.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
アドレス設定装置による複数の二次局のアドレス設定を
必要とする通信システムでは、通信システム内の二次局
の追加／削減の都度、アドレス設定装置によるアドレス
の再設定が必要となり、通信システム内の構成が予め固
定されたものとなるという課題があった。また、基地局
が二次局からの応答を必要とする場合は、二次局からの
応答が衝突しないように、個々の二次局に対して一つづ
つ順番に通知や応答要求を送信するものであり、全体の
通信効率が良くないという課題があった。However, in a communication system which requires address setting of a plurality of secondary stations by a conventional address setting device, the address setting device is added each time a secondary station in the communication system is added / reduced. In this case, there is a problem that the address in the communication system needs to be reset, and the configuration in the communication system is fixed in advance. When the base station requires a response from the secondary station, the base station transmits a notification or a response request to each secondary station one by one so that the response from the secondary station does not collide. However, there is a problem that the overall communication efficiency is not good.
【０００４】本発明は、従来の通信システムのこのよう
な課題を考慮し、通信システムの構成変更に対して柔軟
に対応でき、通信効率を向上できる通信方法を提供する
ことを目的とするものである。An object of the present invention is to provide a communication method capable of flexibly coping with a change in the configuration of a communication system and improving communication efficiency in consideration of such problems of a conventional communication system. is there.
【０００５】[0005]
【課題を解決するための手段】請求項１の本発明は、基
地局Ｈと総数Ｎの二次局Ｘとの間で１：Ｎの通信を行う
通信方法において、予め基地局Ｈに通信相手の二次局Ｘ
の総数Ｎを入力し、基地局Ｈから通信開始の同報通知を
行う際に、同時に総数Ｎを同報通知し、その通知を受信
した二次局Ｘは、（Ｎ＋α）（αは０以上の整数）種類
の乱数Ｒn をそれぞれ発生させ、その乱数Ｒn に基づい
て、時間値ｔn を算出し、基地局Ｈからの同報通知を受
信してから、ｔn 時間経過後にデータを基地局Ｈにそれ
ぞれ送信することにより、基地局Ｈからの同報通知に対
する応答を返信する通信方法である。According to a first aspect of the present invention, there is provided a communication method for performing 1: N communication between a base station H and a total number N of secondary stations X. Secondary Station X
When the base station H performs the broadcast notification of the communication start, the secondary station X broadcasts the total number N at the same time, and upon receiving the notification, the secondary station X receives (N + α) (α is 0 or more. integer) kinds of random numbers R n are generated respectively, based on the random number R n, calculates a time value t n, from receiving the broadcast notification from the base station H, the data after a lapse t n time This is a communication method in which a response to a broadcast notification from the base station H is returned by transmitting the response to each of the base stations H.
【０００６】請求項２の本発明は、基地局Ｈと総数Ｎの
二次局Ｘとの間で１：Ｎの通信を行う通信方法におい
て、予め基地局Ｈに通信相手の二次局Ｘの総数Ｎを入力
し、基地局Ｈから通信開始の同報通知を行う際に、同時
に総数Ｎを同報通知し、その通知を受信した二次局Ｘ
は、（Ｎ＋α）（αは０以上の整数）種類の乱数Ｒn 及
び任意の別の乱数ａnをそれぞれ発生させ、その乱数Ｒn
に基づいて、時間値ｔn を算出し、基地局Ｈからの同報
通知を受信してから、ｔn時間経過後に乱数Ｒn及び乱数
ａnを基地局Ｈにそれぞれ送信し、それを受信した基地
局Ｈは、乱数Ｒn、乱数ａn 自体、又は予め決められ規
則に基づいて得た情報を、所定時間以上経過後に二次局
Ｘに対して同報通知し、その同報通知された情報を受信
した二次局Ｘは、返信のある乱数Ｒn及び乱数ａnのＲn
については、そのＲn をその二次局のアドレスに設定
し、返信の無い乱数Ｒn 及び乱数ａn の少なくとも一部
又は全部のＲnについては、再度Ｒnとａn を発生させ基
地局Ｈに返信し、二次局Ｘの全部について、アドレスが
設定されるまで、基地局Ｈと二次局Ｘとの間で、乱数情
報の同報通知及び、その通知に対して乱数Ｒn、ａnを発
生させ、応答を繰り返す通信方法である。According to a second aspect of the present invention, there is provided a communication method for performing 1: N communication between a base station H and a total number N of secondary stations X. When the total number N is input, and the base station H performs the broadcast notification of the communication start, the total number N is simultaneously broadcast and the secondary station X that has received the notification is received.
Generates a random number R n of (N + α) (α is an integer of 0 or more) and an arbitrary random number a n , and the random number R n
Based on, and calculates a time value t n, from receiving the broadcast notification from the base station H, and transmits each random number R n and the random number a n to the base station H after a lapse t n time, receiving it base station H which is the random number R n, a random number a n itself, or information obtained based on a predetermined rule, and broadcast notifies the secondary station X after a lapse of a predetermined time, is the broadcast notification secondary station X which has received the information, the random number of replies R n and the random number a n R n
For, its R n is set to the address of the secondary station, at least for a part or the whole R n of not random R n and random number a n of reply, the base station generates again R n and a n H, a broadcast notification of random number information between the base station H and the secondary station X, and a random number R n for the notification until the address is set for all of the secondary stations X. to generate a n, a communication method of repeating a response.
【０００７】[0007]
【作用】請求項１の本発明は、基地局Ｈから通信開始の
同報通知を行う際に、同時に二次局Ｘの総数Ｎを同報通
知し、その通知を受信した二次局Ｘは、（Ｎ＋α）種類
の乱数Ｒn をそれぞれ発生させ、その乱数に基づいて、
時間値ｔn を算出し、基地局Ｈからの同報通知を受信し
てから、ｔn 時間経過後にデータを基地局Ｈにそれぞれ
送信することにより、基地局Ｈからの同報通知に対する
応答を返信し、二次局Ｘから基地局Ｈへの通信の衝突を
防御する。According to the first aspect of the present invention, when the base station H performs the broadcast notification of the communication start, it simultaneously broadcasts the total number N of the secondary stations X, and the secondary station X receiving the notification transmits , (N + α) random numbers R n are generated, and based on the random numbers,
By calculating the time value t n and receiving the broadcast notification from the base station H, and transmitting the data to the base station H after the elapse of the time t n , the response to the broadcast notification from the base station H is obtained. Reply to prevent the collision of communication from the secondary station X to the base station H.
【０００８】請求項２の本発明は、基地局Ｈから通信開
始の同報通知を行う際に、同時に総数Ｎを同報通知し、
その通知を受信した二次局Ｘは、（Ｎ＋α）種類の乱数
Ｒn及び任意の別の乱数ａnをそれぞれ発生させ、その乱
数Ｒnに基づいて、時間値ｔnを算出し、基地局Ｈからの
同報通知を受信してから、ｔn時間経過後に乱数Ｒn 及
び乱数ａn を基地局Ｈにそれぞれ送信し、それを受信し
た基地局Ｈは、乱数Ｒn、乱数ａn自体、又は予め決めら
れ規則に基づいて得た情報を、所定時間以上経過後に二
次局Ｘに対して同報通知し、その同報通知された情報を
受信した二次局Ｘは、返信のある乱数Ｒn及び乱数ａnの
Ｒn については、そのＲn をその二次局のアドレスに設
定し、返信の無い乱数Ｒn 及び乱数ａn の少なくとも一
部又は全部のＲnについては、再度Ｒnとａn を発生させ
基地局Ｈに返信し、二次局Ｘの全部について、アドレス
が設定されるまで、基地局Ｈと二次局Ｘとの間で、乱数
情報の同報通知及び、その通知に対して乱数Ｒn、ａnを
発生させ、応答を繰り返すことにより、二次局Ｘのアド
レスを設定する。According to a second aspect of the present invention, when the broadcast notification of the start of communication is performed from the base station H, the total number N is broadcast simultaneously.
Secondary station X that has received the notification, (N + α) respectively generate different random numbers R n and any other random numbers a n, based on the random number R n, calculates a time value t n, base station after receiving the broadcast notification from H, transmits each random number R n and the random number a n to the base station H after a lapse t n time, the base station H, which has received it, the random number R n, a random number a n itself Or, the information obtained based on a predetermined rule is broadcast to the secondary station X after a lapse of a predetermined time or more, and the secondary station X receiving the broadcast notified information, for R n of the random number R n and random number a n, that the R n is set to the address of the secondary station, at least for a part or the whole R n of not random R n and random number a n of reply again reply to R n and a n to generate a base station H, for all the secondary stations X, until the address is set, Between Chikyoku H and the secondary station X, broadcast notification and the random number information, the random number R n, the a n raised against the notification, by repeating the response, the address of the secondary station X I do.
【０００９】[0009]
【実施例】以下に、本発明をその実施例を示す図面に基
づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing embodiments thereof.
【００１０】図１は、本発明にかかる一実施例の通信方
法における通信システム全体の構成図である。すなわ
ち、通信システムは、基地局Ｈ１と８個の二次局２〜９
が赤外線により通信可能な構成になっている。例えば、
会議などにおいて、議長が基地局となり、出席者がそれ
ぞれ携帯端末を持ち、通信を利用して両者の間で議事を
進める場合等が考えられる。FIG. 1 is an overall configuration diagram of a communication system in a communication method according to an embodiment of the present invention. That is, the communication system includes the base station H1 and the eight secondary stations 2 to 9
Are configured to be able to communicate by infrared rays. For example,
In a meeting or the like, a case may be considered in which the chairperson becomes a base station, attendees each have a mobile terminal, and proceed with proceedings between them using communication.
【００１１】ここでは、二次局の総数（Ｎ）を８とし、
時間値を算出するための乱数Ｒn が複数の二次局で重複
するする可能性を低く押さえるための付加値αを２とし
て（従って、（Ｎ＋α）＝１０となる）、以下に、通信
開始時の処理を例に挙げ説明する。Here, the total number of secondary stations (N) is set to 8,
Assuming that the additional value α for suppressing the possibility that the random number R n for calculating the time value is duplicated in a plurality of secondary stations is 2 (accordingly, (N + α) = 10), the communication starts below. The process at the time will be described as an example.
【００１２】図２は、通信開始の同報通知から、最初の
フラグ部とデータ部の同報通知までの通信のやりとりを
示す図である。このとき、通信開始に先立ち、予め基地
局Ｈにこれから通信する二次局の総数８を入力してお
く。FIG. 2 is a diagram showing communication exchanges from the broadcast notification of the start of communication to the first broadcast notification of the flag section and the data section. At this time, prior to the start of communication, the total number 8 of the secondary stations to be communicated with is to be input to the base station H in advance.
【００１３】まず、基地局Ｈから通信開始を同報通知す
る。この時、予め入力されている二次局の総数８を同時
に通知する。次に、その同報通知を受信した二次局Ｘn
は、内部で１〜１０（８＋２）の整数からの乱数Ｒ
nと、別の任意の乱数ａnを発生させ、更に、二次局共通
の計算式に乱数Ｒnを与えることにより時間値ｔnを算出
する。その後、基地局Ｈからの通信開始の同報通知を受
信してからｔn 時間経過後に、時間値を決定するために
使用した前述の乱数Ｒnと、任意の乱数ａnを基地局Ｈに
送信する。そうすると、各二次局はそれぞれ発生した乱
数Ｒn に基づいた時間値ｔnにより返信を行うので、発
生した乱数Ｒnが異なる限り、複数の二次局Ｘ1〜Ｘnか
ら基地局Ｈへの返信の衝突を防御することができる。First, the base station H broadcasts the start of communication. At this time, a total number of secondary stations 8 previously input is notified at the same time. Next, the secondary station X n that has received the broadcast notification
Is a random number R internally from an integer of 1 to 10 (8 + 2)
and n, to generate another arbitrary random number a n, further calculates a time value t n by providing a random number R n to the secondary station a common calculation formula. Then, after a lapse of a broadcast notification communication start from the reception of the t n times from a base station H, the random number R n described above was used to determine the time value, any random number a n to the base station H Send. Then, each secondary station sends a reply with the time value t n based on the generated random number R n , so long as the generated random number R n is different, from a plurality of secondary stations X 1 to X n to the base station H. Reply collision can be prevented.
【００１４】次に、二次局からの返信を受信した基地局
Ｈは、Ｒn の最大値１０から算出したｔmax時間経過
後、それまでに受信した乱数Ｒn、ａn を図３に示す形
式で設定し（後述）、二次局に同報通知する。[0014] Then, the base station H, which has received the reply from the secondary station, after t max time calculated from the maximum value 10 of R n, the random number R n received so far, in Figure 3 a n It is set in the format shown below (described later) and broadcast to the secondary station.
【００１５】図３に於いて、フラグ部１２は通信開始同
報通知からｔmax 時間内に、基地局Ｈが受信したＲn に
対応するビットのみを１とし、他のビットは０とする。
図３では、Ｒn が１，２，４，６，７，９の二次局から
の返信を受信している。次にデータ部１３はフラグ部１
２の対応するＲn の順番にＲnと対で受信したａnを設定
する。Ｒnを返信していない二次局については当然ａnも
返信していないため設定されない。言い換えれば、図３
は基地局Ｈから二次局への送信データ例を示しており、
フラグ部１２が１であるＲn に対応する二次局を通知相
手、もしくはデータ送信相手として指定している。In FIG. 3, the flag unit 12 sets only the bit corresponding to R n received by the base station H to 1 within the time t max from the communication start broadcast notification, and sets the other bits to 0.
In Figure 3, R n is receiving a reply from the secondary station of 1,2,4,6,7,9. Next, the data unit 13 stores the flag unit 1
In the order of 2 corresponding R n to set the a n received in R n pair. The secondary station that has not returned R n is not set because a n has not been returned. In other words, FIG.
Shows an example of transmission data from the base station H to the secondary station,
Flag portion 12 is designated as the notification party or data transmission destination, the corresponding secondary station to R n is 1.
【００１６】図４は、図２の基地局Ｈから二次局への最
初のフラグ部とデータ部の同報通知から、２回目のフラ
グ部とデータ部の同報通知までのやりとりを示す。二次
局は受信したフラグ部とデータ部が後述のいずれかに当
てはまる場合に、再度（Ｒn，ａn ）を発生させ基地局
Ｈに送信する。一つは、通信障害など何等かの理由によ
り自分自身が発生させ送信したＲn に対応するフラグ部
のビットが０の場合、もう一つは、フラグ部のビットが
１であっても、二次局同士の衝突などにより対応するａ
nが自分自身が発生させ送信したａnと異なる値の場合で
ある。この場合、当てはまる二次局が新規に発生させる
乱数Ｒn は、フラグ部のビット０に対応する値と、自分
自身が前回発生させた値の中から発生させる。例えば図
３で、Ｒn ＝３を送信した二次局が存在し、かつＲn ＝
７を送信した二次局が２つ存在したため通信の衝突が生
じａ7の値がどちらの二次局が送信したａ7とも異なって
いたとする。この場合、Ｒn ＝３を送信した二次局は
（３，５，８，１０）から新たなＲnを発生させ、Ｒn＝
７を送信した二次局は（３，５，７，８，１０）から新
たなＲn を発生させる。図４の例では、前述の３つの二
次局がそれぞれ３，５，７のＲn を発生させ送信したこ
とを示している。以上の手順を繰り返すことにより、全
ての二次局に重複しないＲnが設定され、このＲnが以降
の通信において二次局のアドレスとなる。FIG. 4 shows the exchange from the first broadcast notification of the flag section and the data section from the base station H to the secondary station in FIG. 2 to the second broadcast notification of the flag section and the data section. The secondary station generates (R n , a n ) again and transmits it to the base station H when the received flag portion and data portion correspond to any of the following. One is when the bit of the flag section corresponding to R n generated and transmitted for some reason such as a communication failure is 0, and the other is 2 even if the bit of the flag section is 1. A corresponding to the collision between the next stations
This is the case where n is different from a n generated and transmitted by itself. In this case, a random number R n newly generated by the applicable secondary station is generated from a value corresponding to bit 0 of the flag portion and a value generated by itself last time. For example, in FIG. 3, there is a secondary station that has transmitted R n = 3, and R n =
7 transmitting the secondary station to the collision of the communication for which there are two occurs a 7 value of which the secondary station is different also a 7 that transmitted. In this case, the secondary station that transmitted R n = 3 generates a new R n from (3, 5, 8, 10), and R n =
Secondary station that sent the 7 generates a new R n from (3,5,7,8,10). In the example of FIG. 4 shows that the three secondary station described above is transmitted to generate a R n of 3, 5, 7, respectively. By repeating the above procedure, a non-overlapping R n is set for all the secondary stations, and this R n becomes the address of the secondary station in the subsequent communication.
【００１７】以上のように、無線もしくはバス結合され
た１：Ｎの通信システムに於いて、乱数による時間値を
用いて返信することにより二次局からの通信の衝突を防
御し、更に、通信開始後の通信処理により各二次局のア
ドレス設定を行うことで、システムの構成や二次局の数
を固定することなく通信を可能とし、又、基地局から二
次局への通知相手を指定した同報通知と、通信結果の検
知、及び障害時の再送信を可能とし、通信時の衝突など
の障害を検知し、通信効率の良い１：Ｎの通信を行うこ
とができる。また、基地局と二次局との間の通信に関し
て障害が生じた際に、障害の生じた二次局を特定し、基
地局と二次局の双方が再送の処理が可能となる。As described above, in a 1: N communication system wirelessly or bus-coupled, a collision is prevented from being transmitted from a secondary station by returning a response using a time value based on a random number. By setting the address of each secondary station by the communication processing after the start, communication is possible without fixing the system configuration and the number of secondary stations, and the base station to notify the secondary station The designated broadcast notification, the detection of the communication result, and the retransmission at the time of a failure are enabled, a failure such as a collision at the time of communication is detected, and 1: N communication with high communication efficiency can be performed. Also, when a failure occurs in communication between the base station and the secondary station, the failed secondary station is specified, and both the base station and the secondary station can perform retransmission processing.
【００１８】なお、上記実施例では、二次局の数を８個
としたが、２次局の数はこれに限定されないことは言う
までもない。In the above embodiment, the number of secondary stations is eight, but it is needless to say that the number of secondary stations is not limited to eight.
【００１９】また、上記実施例では、発生する乱数の種
類を二次局の総数に２を加えた数、すなわち、αを２と
したが、これは発生する乱数の重複を防止するためであ
り、これに限定されるものではなく、０以上であればよ
い。In the above embodiment, the type of random numbers to be generated is the number obtained by adding 2 to the total number of secondary stations, that is, α is 2, but this is to prevent the generated random numbers from being duplicated. However, the present invention is not limited to this, and may be 0 or more.
【００２０】また、上記実施例では、基地局から同報通
知するデータ部を、フラグ部のビットが１に対応するデ
ータ（乱数ａn）のみを設定するようにしたが、これに
限らず、フラグ部のビットが０の場合についても、乱数
ａnとは区別できる所定のデータを設定するようにして
もよい。Further, in the above embodiment, the data portion to be broadcasted from the base station is set to only the data (random number a n ) in which the bit of the flag portion corresponds to 1, but is not limited to this. case-bit flag portion is 0 may also be possible to set the predetermined data that can be distinguished from the random number a n.
【００２１】[0021]
【発明の効果】以上述べたところから明らかなように本
発明は、通信システムの構成変更に対して柔軟に対応で
き、通信効率を向上できるという長所を有する。As is apparent from the above description, the present invention has an advantage that it can flexibly respond to a change in the configuration of a communication system and can improve communication efficiency.
【図１】本発明にかかる一実施例の通信方法における通
信システム全体の構成図である。FIG. 1 is a configuration diagram of an entire communication system in a communication method according to an embodiment of the present invention.
【図２】同実施例における通信開始の同報通知から、最
初のフラグ部とデータ部の同報通知までの、基地局Ｈと
各二次局Ｘ1〜Ｘnの通信手順の例を示す図である。FIG. 2 shows an example of a communication procedure of the base station H and each of the secondary stations X 1 to X n from the broadcast start of communication to the broadcast notification of the first flag section and the data section in the embodiment. FIG.
【図３】同実施例における基地局Ｈにより設定されるフ
ラグ部とデータ部の例を示す図である。FIG. 3 is a diagram illustrating an example of a flag unit and a data unit set by a base station H according to the embodiment.
【図４】同実施例における最初のフラグ部とデータ部の
同報通知から、次の同報通知までの、基地局Ｈと各二次
局Ｘ1〜Ｘnの通信手順の例を示す図である。FIG. 4 is a diagram showing an example of a communication procedure between the base station H and each of the secondary stations X 1 to X n from the first broadcast notification of the flag portion and the data portion to the next broadcast notification in the embodiment. It is.
１ 基地局Ｈ ２〜９ 二次局 １０ 基地局Ｈの通信時間軸 １１ 二次局の通信時間軸 １２ 同報通知のフラグ部 １３ 同報通知のデータ部 DESCRIPTION OF SYMBOLS 1 Base station H2-9 Secondary station 10 Communication time axis of base station H 11 Communication time axis of secondary station 12 Flag part of broadcast notification 13 Data part of broadcast notification
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小川 典幸 広島県広島市東区光町１丁目12番20号 株式会社松下電器情報システム広島研究 所内 (58)調査した分野(Int.Cl.7，ＤＢ名) H04L 12/28 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Noriyuki Ogawa, Inventor 1-12-20 Hikaricho, Higashi-ku, Hiroshima City, Hiroshima Prefecture Matsushita Electric Information Systems Hiroshima Laboratory (58) Fields surveyed (Int. Cl. 7 , DB (Name) H04L 12/28
Claims (5)
１：Ｎの通信を行う通信方法において、予め前記基地局
Ｈに通信相手の二次局Ｘの総数Ｎを入力し、前記基地局
Ｈから通信開始の同報通知を行う際に、同時に前記総数
Ｎを同報通知し、その通知を受信した二次局Ｘは、（Ｎ
＋α）（αは０以上の整数）種類の乱数Ｒnをそれぞれ
発生させ、その乱数Ｒn に基づいて、時間値ｔnを算出
し、前記基地局Ｈからの同報通知を受信してから、前記
ｔn 時間経過後にデータを基地局Ｈにそれぞれ送信する
ことにより、基地局Ｈからの同報通知に対する応答を返
信することを特徴とする通信方法。In a communication method for performing 1: N communication between a base station H and a total number N of secondary stations X, a total number N of secondary stations X of a communication partner is input to the base station H in advance. When the base station H performs the broadcast notification of the communication start, the secondary station X simultaneously broadcasts the total number N, and receives the notification.
+ Α) (α is an integer greater than or equal to 0), each of which generates a random number R n , calculates a time value t n based on the random number R n , and receives a broadcast notification from the base station H. And transmitting a response to the broadcast notification from the base station H by transmitting data to the base station H after the lapse of the time t n , respectively.
１：Ｎの通信を行う通信方法において、予め前記基地局
Ｈに通信相手の二次局Ｘの総数Ｎを入力し、前記基地局
Ｈから通信開始の同報通知を行う際に、同時に前記総数
Ｎを同報通知し、その通知を受信した二次局Ｘは、（Ｎ
＋α）（αは０以上の整数）種類の乱数Ｒn 及び任意の
別の乱数ａnをそれぞれ発生させ、その乱数Ｒnに基づい
て、時間値ｔnを算出し、前記基地局Ｈからの同報通知
を受信してから、前記ｔn時間経過後に前記乱数Ｒn及び
乱数ａnを基地局Ｈにそれぞれ送信し、それを受信した
前記基地局Ｈは、前記乱数Ｒn、乱数ａn自体、又は予め
決められ規則に基づいて得た情報を、所定時間以上経過
後に前記二次局Ｘに対して同報通知し、その同報通知さ
れた情報を受信した二次局Ｘは、返信のある乱数Ｒn及
び乱数ａnのＲn については、そのＲnをその二次局のア
ドレスに設定し、返信の無い乱数Ｒn及び乱数ａn の少
なくとも一部又は全部のＲnについては、再度Ｒnとａn
を発生させ基地局Ｈに返信し、前記二次局Ｘの全部につ
いて、アドレスが設定されるまで、前記基地局Ｈと前記
二次局Ｘとの間で、乱数情報の同報通知及び、その通知
に対して前記乱数Ｒn、ａnを発生させ、応答を繰り返す
ことを特徴とする通信方法。2. A communication method for performing 1: N communication between a base station H and a total number N of secondary stations X, wherein the total number N of communication partner secondary stations X is input to the base station H in advance. When the base station H performs the broadcast notification of the communication start, the secondary station X simultaneously broadcasts the total number N, and receives the notification.
+ Alpha) (alpha respectively generates an integer of 0 or more) types of random numbers R n and any other random numbers a n, based on the random number R n, calculates a time value t n, from the base station H after receiving the broadcast notification, the t n and the random number respectively transmit the R n and the random number a n to the base station H after a time lapse, the base station H, which has received it, the random number R n, a random number a n Broadcasts itself or information obtained based on a predetermined rule to the secondary station X after a lapse of a predetermined time or more, and the secondary station X receiving the broadcast notified information returns a reply. of the R n is of a random number R n and random number a n, sets the R n to the address of the secondary station, for at least some or all R n of not random R n and random number a n of replies , Again R n and a n
To the base station H, and for all of the secondary stations X, a broadcast notification of random number information between the base station H and the secondary station X until an address is set, and the A communication method characterized by generating the random numbers R n and an n in response to a notification and repeating a response.
とは、ビット数が（Ｎ＋α）個からなるフラグ部に対し
て、前記基地局Ｈが受信した乱数Ｒn に対応するビット
を真に設定し、受信しない乱数Ｒn に対応するビットを
偽に設定し、前記フラグ部にデータ部を付加し、そのデ
ータ部については、前記フラグ部の真のビットに対して
は乱数ａnを設定し、前記フラグ部の偽のビットに対し
てはａn以外の所定データを設定したものであり、その
情報を受信した二次局Ｘは、自身が発生させた前記乱数
Ｒn に対応するフラグ部の情報が偽を示す場合、もしく
はその情報が真を示していても、そのＲnに対応するデ
ータ部のａnの値が、自身が発生させ基地局Ｈに返信し
たａnの値と異なる場合には、再度Ｒnとａn を発生させ
基地局Ｈに返信することを特徴とする請求項２記載の通
信方法。3. The information obtained based on a predetermined rule means that a bit corresponding to the random number R n received by the base station H is true for a flag part having (N + α) bits. , A bit corresponding to the random number R n not to be received is set to false, a data portion is added to the flag portion, and for the data portion, a random number a n is set for a true bit of the flag portion. set, for the fake bit of the flag portion is obtained by setting the predetermined data other than a n, the secondary station X which has received the information, corresponding to the random number R n by itself caused If the information of the flag unit indicates false, or even the information indicates the true value of the value of a n of the data unit corresponding to R n is, himself replied to the base station H is generated a n different cases, by replying to the base station H is generated again R n and a n and The communication method according to claim 2, characterized.
偽を示す全てのＲnと、Ｒnに対応するデータ部のａnの
値が、自身が発生させ基地局Ｈに返信したａn の値と異
なる場合は、そのＲn との中から選択することを特徴と
する請求項３記載の通信方法。R n to 4. A generating again, all of R n which the flag portion indicates a false value of a n of the data unit corresponding to R n is, himself replied to the base station H is generated a if different values of n, the method of communication according to claim 3, wherein the selecting from among its R n.
記フラグ部の偽の情報のビットに対して前記所定データ
を設定せず、前記フラグ部の真の情報のビットに対して
のみ乱数ａn を設定することを特徴とする請求項３、又
は４記載の通信システム。5. The base station H does not set the predetermined data for the false information bit of the flag section in the data section, but sets a random number a only for the true information bit of the flag section. 5. The communication system according to claim 3, wherein n is set.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09516894A JP3207670B2 (en) | 1994-05-09 | 1994-05-09 | Communication method |
| US08/428,645 US5715519A (en) | 1994-04-28 | 1995-04-25 | Interference prevention communication control system and communication method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09516894A JP3207670B2 (en) | 1994-05-09 | 1994-05-09 | Communication method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07303111A JPH07303111A (en) | 1995-11-14 |
| JP3207670B2 true JP3207670B2 (en) | 2001-09-10 |
Family
ID=14130239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09516894A Expired - Fee Related JP3207670B2 (en) | 1994-04-28 | 1994-05-09 | Communication method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3207670B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002152377A (en) * | 2000-11-06 | 2002-05-24 | Mitsubishi Electric Corp | Transfer data method and device thereof |
| KR100440969B1 (en) | 2002-05-23 | 2004-07-21 | 삼성전자주식회사 | Method and apparatus of networking |
| JP4794391B2 (en) * | 2006-08-11 | 2011-10-19 | 富士通セミコンダクター株式会社 | Communication apparatus and communication system |
| JP6938787B2 (en) * | 2018-06-22 | 2021-09-22 | 株式会社 エニイワイヤ | Control / monitoring signal transmission system slave station survival confirmation method |
-
1994
- 1994-05-09 JP JP09516894A patent/JP3207670B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07303111A (en) | 1995-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1265257A (en) | Local area network with carrier sense collision avoidance | |
| US7613146B2 (en) | Method and system for reliable data transmission in wireless networks | |
| EP0461279B1 (en) | Method for routing packets by squelched flooding | |
| USRE37301E1 (en) | Multiple access protocol | |
| JP3212230B2 (en) | Wireless communication local area network | |
| GB2172779A (en) | Local area network with self assigned address method | |
| WO1988007794A1 (en) | Apparatus and method for providing a wireless link between two local area network systems | |
| EP1097546B1 (en) | Data link layer extensions to a high latency wireless mac protocol | |
| JP2896741B2 (en) | Wireless paging method | |
| EP0885535B1 (en) | Use of energy bursts for wireless networks | |
| JP3207670B2 (en) | Communication method | |
| US20100303055A1 (en) | Method for Assigning Data Messages to Time Slots in a Wireless Data Bus System Having Hidden Subscribers | |
| JPH01289339A (en) | Communication controller | |
| JP3200293B2 (en) | Broadcast communication method in ring type LAN | |
| US20040058696A1 (en) | Radio communication system, mobile station and radio network controller | |
| CN114630285A (en) | Data transmission method, device, system and computer readable storage medium | |
| KR100216530B1 (en) | protection method of control data collision of reverse packet signal channel | |
| JPH0821935B2 (en) | Data transmission equipment | |
| CA2245188C (en) | Use of energy bursts for wireless networks | |
| JPH08340573A (en) | Mobile communication system | |
| JPH06177898A (en) | Response return method | |
| JPS63219237A (en) | Satellite communication system | |
| JPH0821934B2 (en) | Data transmission equipment | |
| JPS63129743A (en) | Multiple address communication system | |
| JPH047937A (en) | Multiple address communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070706 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080706 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090706 Year of fee payment: 8 |
|
| LAPS | Cancellation because of no payment of annual fees |