JPS6316735A - Packet multiple access communication system - Google Patents
Packet multiple access communication systemInfo
- Publication number
- JPS6316735A JPS6316735A JP61159731A JP15973186A JPS6316735A JP S6316735 A JPS6316735 A JP S6316735A JP 61159731 A JP61159731 A JP 61159731A JP 15973186 A JP15973186 A JP 15973186A JP S6316735 A JPS6316735 A JP S6316735A
- Authority
- JP
- Japan
- Prior art keywords
- multiple access
- time division
- signals
- packet
- division multiple
- 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
- 238000004891 communication Methods 0.000 title claims description 14
- 230000005540 biological transmission Effects 0.000 abstract 8
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Time-Division Multiplex Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、パケット多重アクセス通信方式に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a packet multiple access communication system.
従来より、パケット信号を無線通信における時分割多重
アクセス〔ティー・ディー・エム・ニー； Ｔ Ｄ Ｍ
Ａ （Ｔｉｍｅ Ｄｉｖｉｓｉｏｎ Ｍｕｌｔｉｐ
ｌｅ ａｃｃｅｓｓ ）〕を用いて送信しようとする方
式は考えられている。例えば、ｆｒ星等を介して行われ
ているパケット通信では、時分割多重がすでに実験運用
されている。Traditionally, packet signals have been used for time division multiple access (TDM) in wireless communications.
A (Time Division Multip
A method of transmitting data using ``LE ACCESS )'' has been considered. For example, time division multiplexing has already been experimentally used in packet communications conducted via FR stars.
しかし、従来の方式に用いられている受信機は、１送信
局から送られたパケット信号を受信、再生するための装
置であり、基本的には、ポイント・ツー・ポイント（ｐ
ｏｉｎｔ ｔｏ ｐｏｉｎｔ）通信にしか適用できない
、この従来の受信機を用いてマルチポイント（Ｍｕｌｔ
ｉｐｏｉｎｔ）アクセス通信を行うには、送信局に比例
した数だけの受信機を設置しな（ではならず、装置が大
型化するという問題点がある。However, the receiver used in the conventional system is a device for receiving and reproducing packet signals sent from one transmitting station, and is basically a point-to-point (p
This conventional receiver can only be applied to multipoint (Mult to point) communications.
In order to perform access communication (ipoint), it is necessary to install a number of receivers proportional to the number of transmitting stations, and there is a problem in that the device becomes larger.
本発明の目的は、パケット通信において、時分割多重ア
クセスの利点であるマルチポイントアクセス通信を行う
ために、送信局が増加した場合にも１台の受信機で済む
時分割多重アクセス通信方式を提供することにある。An object of the present invention is to provide a time division multiple access communication system that requires only one receiver even when the number of transmitting stations increases, in order to perform multipoint access communication, which is an advantage of time division multiple access, in packet communication. It's about doing.
本発明は、複数の送信局からの多重アクセスを可能とす
る時分割多重アクセス通信方式であって、各送信局はパ
ケット信号を定められたスロット長に区切り、割当てら
れた自己のスロットで送信し、
受信局は複数の送信局から時分割多重された信号を受信
し、各送信局別に信号を合成し、各送信局のパケット信
号を再生出力することを特徴としている。The present invention is a time division multiple access communication system that enables multiple access from a plurality of transmitting stations, in which each transmitting station divides packet signals into predetermined slot lengths and transmits them in its own assigned slot. The receiving station receives time-division multiplexed signals from a plurality of transmitting stations, combines the signals for each transmitting station, and reproduces and outputs the packet signal of each transmitting station.
第１図は、本発明の一実施例を示す図である。 FIG. 1 is a diagram showing an embodiment of the present invention.
本実施例では、第１及び第２の２つの送信局から信号が
送信されるものとする。図中、１は第１の送信局の時分
割多重アクセス送信機であり、２は第２の送信局の時分
割多重アクセス送信機、３は受信局の時分割多重受信機
である。In this embodiment, it is assumed that signals are transmitted from two transmitting stations, a first and a second transmitting station. In the figure, 1 is a time division multiple access transmitter of a first transmitting station, 2 is a time division multiple access transmitter of a second transmitting station, and 3 is a time division multiplex receiver of a receiving station.
時分割多重アクセス送信機１の入力端子４には、パケッ
ト信号１００及び１１０が入力される。これらパケット
信号は、時分割多重アクセス送信機１の中でスロット長
に区切られ、与えられた位置にバースト信号１０１．１
１１．１１２を出力端子５から出力する。バケ・ノド信
号１１０は、スロット長より長い信号であるために１１
１．１１２のバースト信号に分けられている。Packet signals 100 and 110 are input to input terminal 4 of time division multiple access transmitter 1 . These packet signals are divided into slot lengths in the time division multiple access transmitter 1, and a burst signal 101.1 is sent to a given position.
11.112 is output from output terminal 5. Since the bucket signal 110 is longer than the slot length, the
It is divided into 1.112 burst signals.
一方、時分割多重アクセス送信機２の入力端子６には、
パケット信号１２０が入力される。このパケット信号は
、スロット長より長い信号であるために、１２１．１２
２のバースト信号に分けられて、出力端子７より出力さ
れる。On the other hand, at the input terminal 6 of the time division multiple access transmitter 2,
A packet signal 120 is input. This packet signal is longer than the slot length, so it is 121.12
The signal is divided into two burst signals and outputted from the output terminal 7.
時分割多重アクセス送信機１及び２から送出されたバー
スト信号は、時分割多重され信号１０となって送出され
る。時分割多重受信機３は、この信号１０を入力端子８
に受信し、送信局別に信号を合成する。さらにパケット
信号として再生ができたところで出力する。従って第１
の送信局のパケット信号１００．１１０と第２の送信局
のパケット信号１２０が再生され、出力端子９から出力
される。The burst signals sent out from the time division multiple access transmitters 1 and 2 are time division multiplexed and sent out as a signal 10. The time division multiplex receiver 3 receives this signal 10 at an input terminal 8.
and synthesizes the signals for each transmitting station. Furthermore, it is output when it can be reproduced as a packet signal. Therefore, the first
The packet signal 100, 110 of the second transmitting station and the packet signal 120 of the second transmitting station are reproduced and output from the output terminal 9.
以上、本発明の一実施例を述べたが、次に本発明を衛星
を介した時分割多重アクセス通信に適用した例を、第２
図に基づいて説明する。One embodiment of the present invention has been described above. Next, a second example of applying the present invention to time division multiple access communication via a satellite will be described.
This will be explained based on the diagram.
地球局２１．２２．２３には、各々パケット信号Ａ。Packet signals A are sent to earth stations 21, 22, and 23, respectively.
Ｂ、Ｃが回線６１．６２．６３を通して送りこまれる。B and C are sent through lines 61.62.63.
地球局２１．２２．２３には、各々時分割多重アクセス
送信機と時分割多重受信機とを備えており、時分割多重
アクセス送信機でパケット信号をバースト信号に区切り
、各アンテナよりＴＤＭＡ信号４１゜４２、４３として
衛星３０に向けて送出される。衛星３０では、全地球局
２１．２２．２３から送出された信号４１゜４２、４３
をそのまま送り返す。この時、衛星３０から出力される
信号３１は、時分割多重された信号になっている。各地
球局２１．２２．２３は、この信号３１を受信すると、
送信局別にパケット信号を再生し、回線５１．５２．５
３に送り出す。Each of the earth stations 21, 22, and 23 is equipped with a time division multiple access transmitter and a time division multiplex receiver, and the time division multiple access transmitter divides the packet signal into burst signals, and each antenna transmits the TDMA signal 41. 42 and 43 toward the satellite 30. On the satellite 30, the signals 41° 42, 43 sent out from the global stations 21, 22, 23
Send it back as is. At this time, the signal 31 output from the satellite 30 is a time-division multiplexed signal. When each earth station 21, 22, 23 receives this signal 31,
Regenerate the packet signal for each transmitting station and send it to the line 51.52.5.
Send it to 3rd.
本発明によれば、パケット信号のマルチアクセスが可能
となり、従って送信局が増加した場合にも１台の受信機
で済むので、装置の大型化を避けることができる。According to the present invention, multiple access to packet signals is possible, so even if the number of transmitting stations increases, only one receiver is required, so it is possible to avoid increasing the size of the device.
第１図は本発明の一実施例を示す図、
第２図は本発明を衛星を介した時分割多重アクセス通信
に適用した例を示す図である。
１．２・・・・時分割多重アクセス送信機３・・・・・
・時分割多重受信機
２１、２２．２３・・地球局
３０・・・・・・衛星FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example in which the present invention is applied to time division multiple access communication via a satellite. 1.2...Time division multiple access transmitter 3...
・Time division multiplex receivers 21, 22, 23...Earth station 30...Satellite
Claims (1)
分割多重アクセス通信方式であって、各送信局はパケッ
ト信号を定められたスロット長に区切り、割当てられた
自己のスロットで送信し、 受信局は複数の送信局から時分割多重された信号を受信
し、各送信局別に信号を合成し、各送信局のパケット信
号を再生出力することを特徴とするパケット多重アクセ
ス通信方式。(1) A time division multiple access communication system that enables multiple access from multiple transmitting stations, in which each transmitting station divides packet signals into predetermined slot lengths and transmits them in its own assigned slot, A packet multiple access communication system characterized in that a receiving station receives time-division multiplexed signals from multiple transmitting stations, synthesizes the signals for each transmitting station, and reproduces and outputs the packet signals of each transmitting station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159731A JPS6316735A (en) | 1986-07-09 | 1986-07-09 | Packet multiple access communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61159731A JPS6316735A (en) | 1986-07-09 | 1986-07-09 | Packet multiple access communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6316735A true JPS6316735A (en) | 1988-01-23 |
Family
ID=15700041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61159731A Pending JPS6316735A (en) | 1986-07-09 | 1986-07-09 | Packet multiple access communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316735A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0643503A2 (en) * | 1993-09-15 | 1995-03-15 | Hughes Aircraft Company | Synchronous time division multiple access interrogate-respond data communication network |
| US5529874A (en) * | 1993-05-07 | 1996-06-25 | Fuji Xerox Co., Ltd. | Liquid developer for electrophotography |
-
1986
- 1986-07-09 JP JP61159731A patent/JPS6316735A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5529874A (en) * | 1993-05-07 | 1996-06-25 | Fuji Xerox Co., Ltd. | Liquid developer for electrophotography |
| EP0643503A2 (en) * | 1993-09-15 | 1995-03-15 | Hughes Aircraft Company | Synchronous time division multiple access interrogate-respond data communication network |
| EP0643503A3 (en) * | 1993-09-15 | 1995-10-04 | Hughes Aircraft Co | Synchronous time division multiple access interrogate-respond data communication network. |
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