JP3449081B2 - Packet communication method between one-to-many terminals - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packet communication method between terminals accommodated in a packet switch, and more particularly, a packet communication method for simultaneously transmitting, receiving or transmitting / receiving communication information in packets between one terminal and a plurality of terminals. Regarding

[0002]

2. Description of the Related Art FIG. 15 is a diagram for explaining a connection format of packet communication in the prior art. In FIG. 15, one terminal 2 (hereinafter, referred to as terminal A) accommodated in the packet switch 1 includes a plurality of terminals 3 (only two terminals are shown in FIG. 15, but hereinafter, each terminal is referred to as a terminal). When transmitting information (hereinafter referred to as communication information) in packets to B and terminal C), it is not possible to set a communication link between terminal A and a plurality of terminals B and C at the same time. Therefore, when the terminal A transmits the communication information to the plurality of terminals B and C, the terminal A connects to one of the plurality of terminals, for example, the terminal B to transmit the communication information, and then connects to the terminal C again to communicate the communication information. Need to send.

[0003]

In the packet communication of the prior art, one terminal cannot set a communication link with a plurality of terminals at the same time, so that one terminal transmits data to a plurality of terminals. In order to collect data from multiple terminals, it was necessary to connect multiple times. For example, in the case of collecting data by packets from n terminals at predetermined time intervals, the terminal on the data collecting side connects to one terminal to collect data, and then disconnects the connection. The data collection operation had to be repeated n times, such as connecting to the next terminal. For this reason, when the number of data collection target terminals is large, there is a problem that not only time and effort are required to collect the data, but also it takes a long time to complete the data collection from all the terminals.

An object of the present invention is to enable one terminal to simultaneously perform packet communication with a plurality of terminals.

[0005]

1 to 5 are views for explaining the principle of the present invention. In the figure, 1a to 1e are packet switches, 2a to 2e are terminals that perform packet communication simultaneously with a plurality of terminals (hereinafter, also referred to as single side terminals), and 3a to 3e are single side terminals 2a to 2e at the same time. Multiple terminals that perform packet communication (hereinafter also referred to as multiple side terminals), 4a to 4e are communication links established between the packet exchanges 1a to 1e and individual side terminals 2a to 2e, and 5a to 5e are packet exchanges 1a to It is a communication link established between 1e and each of the plurality of terminals 3a to 3e.

11a to 15e are packet switches 1a to 1e, respectively.
1a, 11a to 11e are single side pseudo terminals provided for single side terminals 2a to 2e, and 12a to 12e are multiple side terminals
A plurality of plural side pseudo terminals provided for 3a to 3e, 13a,
13b, 13d, 13e are information storage means for multiple terminals, 14c to 14e
Is a single terminal address information storage means, and 15b and 15e are transmission information storage means.

Hereinafter, the function and action of each means in the state in which the respective means are combined will be described together. FIG. 1 is a diagram for explaining the principle of a packet communication method in which communication information in packets is simultaneously transmitted from one terminal accommodated in a packet switch to a plurality of terminals. In FIG. 1, a single-sided terminal 2a, which is going to transmit communication information in packets to a plurality of terminals 3a at the same time, requests a connection to a single-sided pseudo terminal 11a provided in the packet switch 1a. Processing means (not shown) of the packet switch 1a that has detected this request
1 between the independent terminal 2a and the independent pseudo terminal 11a
When the pair-to-one communication link 4a is established, the single-sided terminal 2a transmits the destination information and the communication information for each of the plurality of destination terminals 3a to the single-sided pseudo terminal 11a.

Upon receiving the destination information and the communication information, the single-side pseudo terminal 11a sequentially stores the received information in the queue format in the plural terminal address information storage means 13a. The plurality of plural-side pseudo terminals 12a monitor whether or not the information is stored in the information storage means 13a addressed to the plurality of terminals.
After the destination information and the communication information accumulated at the head of the queue in are fetched, the connection of the destination information to the plural side terminals 3a is requested.

The multi-sided pseudo terminal 12a is connected to the multi-sided terminal 3a specified in the destination information by the processing means, and when a one-to-one communication link 5a is established with the multi-sided terminal 3a, The communication information extracted previously is transmitted to each of the connected plural side terminals 3a. This transmission is a multi-sided pseudo terminal
12a performs in parallel, so it is possible to
This is the same as communication information being simultaneously transmitted to 3a.

In FIG. 2, transmission information storage means is provided in the packet switch to store in advance destination information and communication information for a plurality of terminals to which packet-based communication information is to be transmitted, and this stored information is used. FIG. 3 is a diagram for explaining the principle of a packet communication method in which one terminal simultaneously transmits communication information in packets to a plurality of terminals.

In FIG. 2, transmission information storage means 15b provided in the packet switch 1b stores destination information of a plurality of terminals 3b which are destinations of communication information in packets and communication to be transmitted to each of the plurality of terminals 3b. Information is stored in advance. The single-sided terminal 2b that tries to simultaneously transmit the communication information stored in the transmission information storage means 15b to the plurality of terminals 3b is the transmission to the plurality of terminals 3b stored in the transmission information storage means 15b. Requesting a connection to the single-side pseudo terminal 11b provided in the packet switch 1b with information indicating that.

The single side terminal 2b and the single side pseudo terminal 11b are connected by the processing means (not shown) of the packet switch 1b which detects this request, and the single side pseudo terminal 11b is connected from the processing means.
When the request content is notified to the single side pseudo terminal 11b, the single side pseudo terminal 11b extracts the destination information of the plurality of terminals 3b stored in the transmission information storage means 15b and the communication information to be transmitted to each of the plurality of terminals 3b, and forms a queue. Then, it is sequentially stored in the information storage means 13b addressed to a plurality of terminals.

The plurality of plural-side pseudo terminals 12b provided in the packet switch 1b monitor whether or not information is stored in the information storage means 13b for a plurality of terminals. When it is detected, the destination information and the communication information stored at the head of the queue in the information storage means 13b for each of the plurality of terminals are extracted, and then the plurality of side terminals 3b of the destination information are extracted.
Request a connection to.

The plural-side pseudo terminal 12b is connected to the plural-side terminal 3b designated by the destination information by the processing means, and when the one-to-one communication link 5b is established between the plural-side terminal 3b and the plural-side terminal 3b, The communication information extracted previously is transmitted to each of the connected plural side terminals 3b. Even in this communication method, the communication information can be simultaneously transmitted from the single-sided terminal 2b to the plurality of terminals 3b, but in the case of FIG. 2, the plurality of destination terminals and the communication information transmitted to each of the plurality of terminals are transmitted. Is set in advance, it is possible to extremely efficiently transmit the same communication information to a plurality of the same terminals on a regular basis.

In the above, the communication information is transmitted simultaneously to all the terminals 3b stored in the transmission information storage means 15b, but one of the terminals 3b stored in the transmission information storage means 15b is transmitted. It is also possible to send the communication information only to the terminals of a plurality of parts. Hereinafter, the method will be described with reference to the same FIG.

The single-sided terminal 2b that tries to simultaneously transmit the communication information stored in the transmission information storage means 15b to some of the plurality of terminals 3b among the plurality of terminals stored in the transmission information storage means 15b. Is attached with information indicating that the transmission is to some of the plurality of terminals 3b among the plurality of terminals stored in the transmission information storage means 15b and information for identifying the some of the plurality of terminals 3b. It requests a connection to the single-sided pseudo terminal 11b provided in the packet switch 1b.

When the processing means that has detected this request connects the single-sided terminal 2b and the single-sided pseudo terminal 11b, and the processing means notifies the single-sided pseudo terminal 11b of the request content, the single-sided pseudo terminal 11b sends the transmission information. Some of the plurality of terminals 3b designated from the information of the plurality of terminals stored in the storage means 15b
Destination information and communication information to be transmitted to each of the terminals 3b, which is a part of the destination information, are taken out and sequentially stored in the queue form in the plural terminal address information storage means 13b. Since the subsequent operation is the same as that described above, the description will be omitted. In this method, since the plural destination terminals 3b can be selected each time without being fixed, flexibility can be provided.

According to the method described above, only one set of a plurality of terminals is stored in the transmission information storage means 15b and the communication information is transmitted to all the terminals or a part of the terminals. It is also possible to change the destination terminal by preparing a plurality of combinations of the plurality of terminals and specifying the combination at the time of transmission. Hereafter, the same method is shown in FIG.
Will be explained.

In this method, a plurality of combinations of a plurality of terminals that simultaneously transmit communication information in packets are set in advance, destination information of a plurality of terminals 3b belonging to each combination, and communication for transmitting to each of the plurality of terminals 3b. Information transmission means 15
Pre-store it in b.

An attempt to simultaneously transmit the communication information previously stored in the transmission information storage means 15b to the plurality of terminals 3b belonging to one of the combinations of the plurality of terminals stored in the transmission information storage means 15b The side terminal 2b attaches information indicating that the transmission is to a plurality of terminals belonging to a specific combination among the plurality of combinations of terminals stored in the transmission information storage means 15b and information identifying the specific combination. Then, it requests a connection to the independent pseudo terminal 11b provided in the packet switch 2b.

When the processing means that has detected this request connects the single-sided terminal 2b and the single-sided pseudo-terminal 11b, and the processing means notifies the single-sided pseudo-terminal 11b of the request content, the single-sided pseudo-terminal 11b sends the transmission information. The destination information of the plurality of terminals 3b belonging to the specified combination and the communication information to be transmitted to each of the plurality of terminals are extracted from the combinations of the plurality of sets of terminals stored in the storage means 15b, and a plurality of them are sequentially arranged in a queue form. The information is stored in the terminal-addressed information storage means 13b.

Since the subsequent operation is the same as that described above, the description will be omitted. In this method, multiple combinations of terminals to be transmitted at the same time are set in advance, so when the destinations change depending on the content of information to be transmitted or the transmission time, it is possible to efficiently specify the plurality of destination terminals. It can be carried out.

FIG. 3 is a diagram for explaining the principle of a packet communication method in which a plurality of terminals simultaneously send packet communication information to the same terminal. In FIG. 3, a plurality of terminals 3c that may transmit communication information in packets to a specific terminal (single-sided terminal) 2c at the same time as other terminals.
Requests a connection to a plurality of pseudo terminals 12c provided in the packet switch 1c. When a one-to-one communication link is established with one of the pseudo terminals 12c, The destination information and the transmission information for the specific terminal 2c are transmitted. Each of the plurality of pseudo terminals 12c that has received the destination information and the transmission information from each of the plurality of terminals 3c queues the received information when it confirms that the received destination information is for a predetermined specific terminal 2c. The information is sequentially stored in the individual terminal addressed information storage means 14c in the format.

The single-sided pseudo-terminal 11c provided in the packet switch 1c corresponding to the specific terminal 2c monitors whether or not information is stored in the information storage means 14c addressed to the single terminal. When a specific terminal is detected that
Request a connection to 2c. A processing device (not shown) connects the single-side pseudo terminal 11c and the specific terminal 2c,
When the pair 1 communication link is established, the single-side pseudo terminal 11c sequentially extracts the communication information stored in the single-terminal-addressed information storage means 14c from the head of the queue and transmits it to the specific terminal 2c.

In this method, a plurality of terminals can simultaneously connect to the same terminal and send communication information in packets. FIG. 4 is a packet in which one terminal accommodated in a packet switch connects to a plurality of terminals, simultaneously transmits communication information in packets to the plurality of terminals, and simultaneously receives information returned from the plurality of terminals. It is a figure explaining the principle of a communication method.

In FIG. 4, the single-sided terminal 2d, which is going to transmit and receive communication information in packets with a plurality of terminals 3d at the same time, requests connection to the single-sided pseudo-terminal 11d provided in the packet switch 1d. When a one-to-one communication link is established with the single-side pseudo terminal 11d, destination information and communication information for each of the plurality of terminals 3d are transmitted.

The single-side pseudo terminal 11d which has received the destination information and the communication information sequentially stores the received information in the queue format in the plural terminal address information storage means 13d. Packet switch 1d
A plurality of plural-side pseudo terminals 12d provided inside monitor whether or not information is stored in the information storage means 13d addressed to a plurality of terminals. The destination information and communication information accumulated at the head of the queue in the destination information accumulating means 13d are taken out, and a connection of the destination information to the terminal 3d (one of the plural side terminals 3d) is requested. When connected to the terminal 3d having the destination information and a one-to-one communication link is established with the terminal 3d, each plural-side pseudo terminal 12d transmits the extracted communication information to each connected terminal 3d. To do.

When the communication information is transmitted to the single-sided terminal 2d according to the content of the communication information received by each of the multiple-sided terminals 3d receiving this communication information, the multiple-sided pseudo terminals corresponding to the respective multiple-sided terminals 3d 12d sequentially stores the received information in a queue format in the individual terminal addressed information storage means 14d. The single-sided terminal 2d monitors whether or not the information is stored in the single-terminal-addressed information storage means 14d, but when it detects that the information is stored in the single-terminal-addressed information storage means 14d, the stored communication is detected. Information is taken out sequentially from the head of the queue and transmitted to the independent terminal 2d connected to the independent pseudo terminal 11d.

As described above, in this method, one terminal transmits communication information in packets to a plurality of terminals at the same time, and communication information returned from a plurality of terminals is simultaneously transmitted according to the contents of the communication information. Can be received.

In FIG. 5, transmission information storage means is provided in the packet switch to store in advance information necessary for transmission to a plurality of terminals, and communication information is transmitted / received simultaneously to / from a plurality of terminals. The principle of a packet communication method in which a single-sided terminal simultaneously transmits packetized communication information to multiple terminals using the stored information and then simultaneously receives communication information returned from multiple terminals will be described. It is a figure.

In FIG. 5, the transmission information storage means 15e provided in the packet switch 1e includes destination information of a plurality of terminals 3e which are destinations of communication information in packets and communication for transmitting to each of the plurality of terminals 3e. Information is stored in advance. The single-sided terminal 2e that attempts to simultaneously transmit the communication information stored in the transmission information storage means 15e to the plurality of terminals 3e is the transmission to the plurality of terminals 3e stored in the transmission information storage means 15e. A request for connection to the independent pseudo terminal 11e provided in the packet switch 1e is added with information indicating that.

When the single-sided terminal 2e and the single-sided pseudo-terminal 11e are connected by this request, the single-sided pseudo-terminal 11e receives the destination information of the plurality of terminals 3e stored in the transmission information storage means 15e and the plurality of terminals 3e. The communication information to be transmitted to each of the terminals is taken out and sequentially stored in the queue form in the information storage means 13e addressed to a plurality of terminals. The subsequent operation is the same as that described with reference to FIG.

According to this method, when the single-sided terminal is connected to a plurality of predetermined terminals and the data transmission is instructed to collect the data, the single-sided terminal each time,
It is not necessary to input destination information and communication information (for example, data transmission instruction).

In the above, the communication information is transmitted to all of the plurality of terminals 3e stored in the transmission information storage means 15e, and the communication information is returned from all the plural side terminals 3e.
It is also possible to transmit the communication information only to some of the terminals 3e stored in the transmission information storage means 15e. The method is the same as the content described with reference to FIG. 2, and therefore description thereof will be omitted. However, in this method, it is possible to select each time without fixing a plurality of terminals on the other side with which communication information is transmitted and received. It can be flexible.

In addition, a plurality of combinations of a plurality of terminals that simultaneously transmit and receive communication information are set in advance, the transmission information is stored in the transmission information storage means 15e, and the single side terminal specifies the combination at the time of transmission. It is also possible to change the combination of destination terminals. Since the method is the same as the content described with reference to FIG.
With this method, when a plurality of terminals change depending on the content of information to be transmitted and received and the transmission / reception timing, it is possible to efficiently specify a plurality of terminals as transmission / reception partners.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 6 to 10 are views for explaining an embodiment of an information transmission / reception procedure in a packet communication method between one and a plurality of terminals of the present invention, and FIG. 11 is for a plurality of terminals of an embodiment of the present invention. FIG. 12 is a diagram showing the information storage state of the information storage area, FIG. 12 is a diagram showing the information storage state of the information storage area addressed to a single terminal of the embodiment of the present invention, and FIGS. 13 and 14 are transmission information lists of the embodiment of the present invention. It is a block diagram.

Throughout the drawings, the same reference numerals denote the same objects, 1 is a packet switch, 2 is a terminal on the independent side that performs packet communication with a plurality of terminals (hereinafter referred to as terminal A), and 3 is terminal A. A plurality of terminals that perform packet communication simultaneously between them (hereinafter referred to as terminal B, and when referring to individual terminals B, terminal B
# 1, ..., Terminal B # n), 4 is a communication link established between the packet switch 1 and the terminal A, and 5 is established between the packet switch 1 and each of the plurality of terminals B. It is a communication link.

Reference numerals 11 to 15 are provided in the packet switch 1. Reference numeral 11 is a single side pseudo terminal provided for a single side terminal (single side pseudo terminals 11a to 11e shown in FIGS. 1 to 5).
In the embodiment of the single-sided pseudo-terminal that also has the function of, the multi-sided pseudo-terminals 12 and 12 are provided for the multi-sided terminals (the multi-sided terminals shown in FIGS. 1 to 5). In the embodiment of the pseudo terminals 12a to 12e, the pseudo terminals 12a to 12e also have the functions of the plural side pseudo terminals 12a to 12e.
, And when referring to each pseudo terminal M, the pseudo terminal M #
1, ..., Pseudo-terminals M # n), 13 are information storage areas for multiple terminals (information storage means 13a, 13b, 13d for multiple terminals shown in FIGS. 1, 2, 4 and 5). , 13e, which also has the functions of a plurality of terminal-addressed information storage means 13a, 13b, 13d, 13e), 14 is a single-terminal-addressed information storage area (single-terminal-addressed information storage means shown in FIGS. 3 to 5). 14c
~ 14e embodiment, multiple terminal destination information storage means 14c ~
14 also has the function of 14e), 15 is a transmission information list (Fig. 2)
Also, in the embodiment of the transmission information storage means 15b, 15e shown in FIG. 5, the transmission information storage means 15b, 15e also have the functions of the transmission information storage means 15b, 15e).

Hereinafter, an embodiment of information transmission / reception in the packet communication method between one-to-many terminals of the present invention will be described in detail with reference to the drawings. Note that the lower case alphabetic characters a to k described in parentheses below are symbols attached to the transmission / reception paths or processing contents of various information described in FIGS. 6 to 10.

First, an embodiment of a communication method for simultaneously transmitting communication information in packets from a single terminal to a plurality of terminals will be described with reference to FIG. When the terminal A of FIG. 6 attempts to simultaneously transmit communication information (hereinafter, communication information transmitted from a single terminal side to a plurality of terminal sides will be referred to as transmission information) to a plurality of terminals B # 1 to #n, it is not possible. A link establishment request is made by using a special number (this special number is referred to as a multi-connection special number) which is predetermined to be used for simultaneous connection to a plurality of specific terminals (see this special number). Since the link establishment request and its processing use a known technique in packet communication, detailed description thereof will be omitted.

Processing device of packet switch 1 (not shown)
Selects a pseudo terminal S instead of an ordinary terminal as a partner terminal when a link establishment request is made by a special number for multiple connections, and sets a communication link 4 between the terminal A and the pseudo terminal S (b in FIG. 6). ). In this state, the terminal A starts communication in the same manner as when it is connected to a normal partner terminal, but the communication content in this case is the destination number and transmission information for each of the plurality of terminals B # 1 to B # n. (C in FIG. 6). It should be noted that the transmission information to be simultaneously transmitted to a plurality of terminals is often the same content, that is, broadcast communication.In such a case, by predetermining it, only the destination number is transmitted individually. The transmission information may be commonly transmitted once.

When the pseudo terminal S receives the destination number and the transmission information of each destination terminal B, the destination number and the transmission information are stored in the information storage area 13 for a plurality of terminals by queue connection in the order of reception (d in FIG. 6). . Figure 11: Information storage area for multiple terminals
13 shows an example of an information storage state in 13. Hereinafter, FIG. 11 will be described.

FIG. 11 (1) shows terminals B # 1 to #n in the memory area after address 100000 of the information storage area addressed to a plurality of terminals.
This shows a state in which information addressed to (terminal B # 5 and subsequent ones is not shown) is sequentially accumulated. In this example, the destination information (referred to as destination information # 1) of the terminal B # 1 has addresses 10000 to 100009.
(Hereinafter, only the head address is described.) The transmission information (which is assumed to be divided into two packets of transmission information a and transmission information b) to be transmitted to the terminal B # 1 has addresses 100010 and 1000.
The destination numbers and the transmission information of the terminals B # 2 and later are sequentially stored in the address 100030 and later.

In the present invention, information is stored in the information storage area 13 addressed to a plurality of terminals by queue connection. In the case of queue connection, the information to be stored forms a queue (hereinafter referred to as a queue) in the order of input, and is sequentially taken out from the head of the queue at the time of output. FIG. 11 (2) shows a table (hereinafter referred to as a stored information queue table) used as an index for recording the queue order of stored information and extracting the queue order. The stored information queue table in FIG. 11 is provided in the information storage area 13 addressed to multiple terminals, and when storing information in the information storage area, information as shown in (2) of FIG. 11 is written. Then, in the state where the information of the queues from the 1st (head) to n-1th has not yet been extracted, the information to the terminals B # 1 to #n shown in (1) of FIG. The figure shows a state in which is accumulated.

As shown in (2) of FIG. 11, in the accumulated information queue table, the head and tail addresses of the information accumulating area in which the information having the queue number is accumulated for each queue number and the next queue number. The head address where information is stored is written. For example, the n-th queue has a start address of 100000 and an end address (indicates the start address of the area where the communication information at the end is accumulated) is 1000.
Although it is 20, it can be understood from the comparison with (1) in FIG. 11 that the information of this nth queue is the information addressed to the terminal B # 1. Also, 100030 is stored in the "Next communication information start address" column of the n-th queue, but this address stores information addressed to the terminal B # 2 as shown in (1) of FIG. This is the start address of the existing area. Hereinafter, in the same manner, the information to the terminals B # 2 to #n is accumulated in the information accumulation area for a plurality of terminals in the queue form.

Now, returning to FIG. 6, description will be made. The plurality of pseudo terminals M # 1 to #n provided in the packet switch monitor whether or not information is stored in the information storage area 13 addressed to the plurality of terminals. Monitoring is performed by a plurality of pseudo terminals M # 1 to #n constantly accessing the information storage area 13 addressed to a plurality of terminals at a predetermined cycle, or when the pseudo terminals S or processing devices accumulate information in the information storage area addressed to a plurality of terminals. Upon further instruction, the information storage area 13 addressed to a plurality of terminals is sequentially accessed.
Whether or not the information is stored is confirmed by checking whether or not the information is stored in the first position of the queue number shown in Fig. 11 (2), but the information is stored in the stored information queue table. A flag indicating whether or not the flag is set may be provided, and the flag may be checked by "1" or "0" (the flag is not shown in FIG. 11).

The stored information queue table of FIG. 11 (2) is deleted when the information of the first queue is taken out from the information storage area 13 addressed to a plurality of terminals, and the information of the second queue becomes the queue number "1". , Cue numbers are incremented one by one. Now, the information of the first to n-1th (not shown) queues in the accumulated information queue table of FIG. 11 (2) have already been extracted, and the information of the nth queue of the figure is the first position of the queue number. It has been carried over to. In this state, the pseudo terminals M # 1 to #n sequentially
When the stored information queue table shown in (2) of 11 is accessed, the first accessed pseudo terminal M (referred to as pseudo terminal M # 1) becomes the n-th (2) of FIG. 11 (queue number "1"). Read). When this information is read, the address of the storage area indicated by this information (in this example,
Information stored in 100000 to address 100020), that is, the destination information of the terminal B # 1 and the transmission information to be transmitted to the terminal B # 1, is extracted and stored in the pseudo terminal M # 1.

When the accumulated information is taken out, the information of the first queue in the accumulated information queue table (see FIG. 11).
(The nth information in (2) of) is deleted and n
The + 1st information is carried to the "1st" position of the queue number. As a result, the pseudo terminal M (referred to as pseudo terminal M # 2) who next accessed the stored information queue table is the terminal B.
The destination information of # 2 and the communication information to be transmitted to the terminal B # 2 are extracted, and similarly, the destination information of the terminal B # n and the transmission information to be transmitted to the terminal B # n are n pseudo terminals. It is sequentially taken out to M # 1 to #n (e in FIG. 6).

When the pseudo terminals M # 1 to #n take out the above information, they make a request for connection and link establishment to the terminal B of the taken out destination information as if they were calling terminals. Shown abbreviated processor establishes a communication link 5 to the terminal B # 1~ # n of destination specified in accordance with the requirements of each pseudo-terminal M # 1~ # n (f in Fig. 6 _-1 ~f _{- n} ). When the communication link 5 is established, the pseudo terminals M # 1 to #n transmit the transmission information extracted by the pseudo terminals M # 1 to #n, respectively, to the destination terminals B # 1 to #n (g- ₁ to g- _{1 in} FIG. 6).
g- _n ).

The transmission of the transmission information is performed by a plurality of pseudo terminals M # 1 to M # 1.
Since #n performs in parallel, the transmission information is in the same state as being transmitted at the same time. In FIG. 6, a direct communication link is not set up between a single terminal A and a plurality of terminals B, but a plurality of terminals B are connected as if a communication link was set up simultaneously with a plurality of terminals B. The transmission information can be simultaneously transmitted to the terminals B1 to #n.

Next, another embodiment of the present invention will be described with reference to FIG. In FIG. 6, the destination information and the transmission information for the plurality of terminals B # 1 to #n are transmitted from the terminal A, but FIG. 7 shows a method of storing these information in the packet switch 1 in advance.

The transmission information list 15 in FIG. 7 includes a plurality of terminals B #.
1 to #n is a list storing destination information and transmission information addressed to each terminal B (the transmission information storage means 15b and 15e shown in FIGS. 2 and 5 are means for storing transmission information. In the transmission information list that stores the transmission information
15 is an embodiment of the transmission information storage means 15b and 15e). Although necessary information is stored in advance in the transmission information list 15, the procedure will be briefly described below (the procedure for storing information is omitted in FIG. 7).

When information is stored in the transmission information list 15 (hereinafter, this process is referred to as registration), a special number indicating that the transmission information list is registered from the terminal A or another predetermined terminal (predetermined) Link establishment request is made. When the processing device of the packet switch 1 (not shown) receives this request, it connects the terminal A and the pseudo terminal S and establishes a communication link between both terminals.

In this state, a plurality of terminals B # 1 to B # 1 are transmitted from the terminal A.
When the destination information and the transmission information for #n are paired and transmitted by a predetermined method, the pseudo terminal S attaches numbers to the received information and stores them in the transmission information list 15. When the storage is completed, the terminal A is notified by voice or packet that the registration is completed. The above number may be given in advance by the terminal A and input, but in the case of giving it at the exchange side, the number given to each of the terminals B # 1 to #n is notified when the completion of registration is notified. . In addition to registration, the stored content of the transmission information list 15 can be changed (updated).
In that case, the link establishment request is made by using the special number indicating that the transmission information list is updated, and the update information is input. However, since the list update is a general technique, detailed description thereof will be omitted. Note that the transmission information list 15 may be registered or updated using a maintenance console or the like instead of using a general terminal.

FIGS. 13 and 14 show an embodiment of the structure of the transmission information list 15, but in the example of FIG. 13, the combination of terminals that communicate simultaneously is fixed (terminals B # 1 to #n). 2 shows an example of a single list method. In the illustrated transmission information list, destination information for each of the terminals B # 1 to #n and each terminal B
The transmission information to be transmitted to each terminal is stored as a pair for each terminal. 13 and 14 are examples of collecting data from a plurality of terminals B # 1 to #n, the transmission information is all “collected data transmission instruction” (command), but the transmission information is the terminals. It may be different for each. A number is attached to the information for each terminal, but by specifying this number, the transmission information can be sent to only some of the terminals in the transmission information list 15 as described later. FIG. 14 will be described later.

Although the contents shown in FIG. 13 are stored in the transmission information list 15 when the above-mentioned registration of the transmission information list is completed, in this state, the terminal A in FIG. An information transmission / reception procedure when transmitting simultaneously to 1 to #n will be described.

When the terminal A in FIG. 7 tries to transmit the transmission information registered at the same time to all the terminals B # 1 to B # n registered in the transmission information list 15 in advance, A link establishment request is made using a predetermined special number (this special number is referred to as a simultaneous connection special number) (a _{1 in} FIG. 7).

Processing device of packet switch 1 (not shown)
When the link establishment request is made by the simultaneous connection special number, the pseudo terminal S is selected as the partner terminal and the communication link 4 is set between the terminal A and the pseudo terminal S as in FIG. 6 (b in FIG. 7). ). When the communication link 4 is set and the processing device notifies that it is a request for simultaneous connection, the pseudo terminal S notifies the information of all terminals stored in the transmission information list 15,
That is, the destination numbers of the plurality of terminals B # 1 to #n and the transmission information to be sent to each terminal B are read (c in FIG. 7). Send information list
When the information is extracted from 15, the pseudo terminal S sequentially stores this information in the information storage area 13 for a plurality of terminals by queue connection (d in FIG. 7). Since the following operation is the same as that in FIG. 6, description thereof will be omitted, but it goes without saying that the transmission information is not limited to the example (collected data transmission instruction) described in FIG.

In the above, after the communication link 4 is established,
Although information is not exchanged between the terminal A and the pseudo terminal S,
Information is sent from the packet switch 1 to the terminal A via the communication link 4 at the end of communication or when an abnormality occurs in the communication process.

Next, with reference to the same FIG. 7, as to an embodiment in which communication is performed only to some (plural) terminals of the plurality of terminals B # 1 to #n stored in the transmission information list 15. Explain. In this case, the terminal A of FIG.
The number registered in the transmission information list 15 using the special number used to connect to only some of the terminals registered in 15 (this special number is referred to as the partial connection special number) A link establishment request is made including information designating a part of the terminals (a _{2 in} FIG. 7). The information designating a specific terminal among the plurality of terminals is “No.” illustrated in FIG.
Use the numbers in the column to enter the numbers separated by a predetermined code.

The processing device of the packet switch 1 selects the pseudo terminal S and sets the communication link 4 between the terminal A and the pseudo terminal S in the same manner as described above even when the link establishment request by the partial connection special number is issued. FIG. 7b). When the communication link 4 is set and the processing device notifies that it is a partial connection request, the pseudo terminal S sends information (address number and transmission information) to the terminal corresponding to the number specified by the transmission information list 15. ) Is read out (c in FIG. 7) and sequentially stored in the information storage area 13 addressed to a plurality of terminals (d in FIG. 7). The subsequent operation is the same as the case of simultaneously transmitting to all terminals registered in the transmission information list 15.

Next, a plurality of transmission information lists 15 in which information on combinations of different terminals is stored are prepared, and an arbitrary combination of terminals is designated from the list, and information is sent to all of the plurality of terminals belonging to the combination. The same FIG. 7 for the example of transmitting
Will be explained.

In this case, a plurality of transmission information lists 15 are created in advance and each transmission information list is given a number. Figure 14
Shows an example of a multiple list method using a plurality of transmission information lists 15, the transmission information list No. 1 and
Only the two sets of transmission information list 15 of No. 2 are shown. Similar to FIG. 13, the contents stored in the transmission information list are destination information and transmission information, but the transmission information lists No. 1 and No. 2 have different combinations of a plurality of destination terminals. In the example of FIG. 14, only the terminal B # 1 is common to both lists, and the other terminals have a transmission information list No. 1 that is an odd number, a transmission information list.
Although No. 2 is an even-numbered terminal, it is not necessary to include a common terminal, and the transmission information may be different for each terminal, as described above.

When a plurality of transmission information lists 15 are prepared in this way and information is transmitted simultaneously to a plurality of terminals registered in the one transmission information list 15, the terminal A
Is a special number used to send information by selecting multiple transmission information lists (this special number is referred to as a group-specific connection special number), and information specifying the transmission information list 15 (transmission information list number) is used. A link establishment request is also included (a _{3 in} FIG. 7).

The processing device of the packet switch 1 selects the pseudo terminal S and sets the communication link 4 between the terminal A and the pseudo terminal S in the same manner as above even when the link establishment request by the group-specific connection special number is issued. FIG. 7b). When the communication link 4 is set, the pseudo terminal S takes out the information for all the terminals stored in the transmission information list 15 of the specified transmission information list number, and the queue connection establishes the information storage area 13 for a plurality of terminals.
Are sequentially stored in the memory (c, d in FIG. 7). Since the following operation is the same as the content already described, it will be omitted. In this method, all of a plurality of terminals that may be transmitted at the same time (for example, terminals B # 1 to #n) are stored in one transmission information list, and a part (a plurality of them) is stored in another transmission information list 15. )
If the terminal is stored, the same effect as the method using the selective connection special number described above can be obtained (however, the selection range is limited).

Next, a case will be described in which communication information is simultaneously transmitted from a plurality of terminals to the same terminal. A data collection method is often used in which a plurality of terminals connect to a specific terminal provided in a center or the like and send predetermined data (communication information) at a predetermined time (regular time). In this way, when data is sent from multiple terminals all at once at a certain time, it is normal for the receiving terminal to not be able to be received by one terminal in the circuit switching method, but the data is sent by packet communication. In this case, since the data is divided into packets, it is possible that one terminal can receive packets from multiple terminals alternately. However, as described above, even in the packet switching system, it is not possible to set a plurality of communication links for one receiving terminal at the same time, so that even if the data from each terminal is extremely short, the conventional technique does not It was not possible for a single terminal to receive packet data from multiple terminals at the same time. Although the communication method of the present invention enables this, an embodiment will be described with reference to FIG.

A plurality of terminals B # 1 to #n shown in FIG. 8 are connected to the terminal A at a predetermined time, for example, and data (communication information transmitted from a plurality of terminals to a single terminal is referred to as data). Are to be sent.
When a plurality of terminals are simultaneously connected to the same terminal as described above, only one of the plurality of terminals B # 1 to #n may be connected to the terminal A. Instead of making a direct link establishment request, a predetermined special number (this special number is referred to as a simultaneous connection special number) is used to make a link establishment request (see a- _{1 to} a- _{n in} FIG. 8). In addition,
When there are multiple incoming (single side) terminals that may be connected from multiple terminals at the same time in the same packet switch, information (terminal number) that identifies the single terminal of the connection destination is added after the simultaneous connection special number. However, in the following, it is assumed that the connecting terminal is limited to the terminal A in FIG.

Processing device of packet switch 1 (not shown)
When a link establishment request is made by the simultaneous connection special number, instead of directly connecting to the terminal A, each of the terminals B # 1 to #n is connected to the pseudo terminals M # 1 to #n, and each terminal B and each pseudo terminal are connected. The communication link 5 is set between the terminals M (b _-1 ~ in FIG. 8).
b- _n ). Each of the terminals B # 1 to #n has n pseudo terminals M.
In the figure, the same number as the number of the connected terminal B (# 1 to #) is connected to the pseudo terminal M for convenience of illustration.
n) is attached.

When the communication link 5 is set, terminals B # 1 to B # 1
#N transmits the specified data (c in FIG. 8).
_{-1 to} c- _n ). Each of the pseudo terminals M # 1 to #n stores the received data in the information storage area 14 addressed to a single terminal by queue connection (d in FIG. 8). FIG. 12 is a diagram showing an example of the information storage state of the information storage area 14 addressed to a single terminal. Below, figure
12, the contents are similar to the information storage area 13 addressed to a plurality of terminals described with reference to FIG. 11, and therefore only a brief description will be given.

FIG. 12A shows the pseudo terminals M # 1 to M # 1 in the memory area after the address 200000 of the information storage area addressed to a single terminal.
The state in which the data from #n is accumulated is shown. In this example, the data from the pseudo terminal M # 1 (the transmission source is the terminal B # 1) is transmitted from the pseudo terminal M # 2 (the transmission source is the terminal B # 2) to the addresses 200000 to 200020 (all are described by the head address). Data at addresses 200030 to 200040 at pseudo terminal M #
Data from 3 onwards are stored at addresses 200050 onward (pseudo terminal M # 5 and onward are not shown). Since the destination terminal is limited to the terminal A from the above conditions, the destination information is not stored. The information for identifying the transmission source terminal of each data is assumed to be stored in the data.

Since the above data is accumulated by the queue connection, the state of the accumulated information queue is stored in the accumulated information queue table as shown in (2) of FIG. The structure and usage of the stored information queue table are almost the same as those in the stored information queue table of the information storage area 13 addressed to a plurality of terminals described with reference to FIG.

Although the data addressed to the terminal A is stored in the information storage area 14 for the individual terminal as described above, the pseudo terminal S in FIG. 8 always determines whether or not the data is stored in the information storage area 14 for the individual terminal. Since this is monitored, when data is accumulated, it is sequentially extracted from the data corresponding to the "first" information of the queue number in the accumulated information queue table shown in (2) of FIG. The data corresponding to the queue number "n-1" has already been extracted from the queue number "1" of the accumulated information queue table of (2) in FIG. 12, and the information of the queue number "nth" in the figure is the queue number "1". The pseudo terminal S uses the information stored in the queue number "nth" in the figure to store the data stored in the address 20000 to the address 200020 in (1) of FIG. , That is, terminal B #
The data from 1 is taken out (e in FIG. 8).

When the pseudo terminal S retrieves data from the information storage area 14 addressed to a single terminal as described above, the packet switch 1 (specifically, a processing device (not shown)) appears as if it were a normal terminal. To the terminal A to request connection and link establishment. The processor is a pseudo terminal S
When a communication link is established between the terminal A and the terminal A, the pseudo terminal S sequentially transmits the data extracted from the information storage area 14 addressed to a single terminal to the terminal A (f, g in FIG. 8).

The pseudo terminal S is the information storage area 14 for individual terminals.
When the transmission of all the data stored in the terminal is completed, the processor is notified of the end of the transmission, and the communication link with the terminal A is released. In FIG. 8, the plurality of terminals B # are configured as described above.
Since data can be simultaneously transmitted from 1 to #n to the same terminal A, for example, a plurality of terminals B # 1 to #n can be transmitted.
Data can be collected by autonomously transmitting data from the.

Next, transmission information (for example, an instruction requesting data transmission) is sent from a single terminal to a plurality of terminals all at once, and the data sent back from the plurality of terminals to the single terminal is sent to a single terminal. An embodiment of the present invention in which the terminals simultaneously receive will be described. Hereinafter, the terminal A in FIG.
An example of collecting data from # 1 to #n will be described.

When collecting data from a plurality of terminals B # 1 to #n, the terminal A that collects data makes a link establishment request using a plurality of connection special numbers as in the method described with reference to FIG. 6 (FIG. 9). A). After that, the same processing as in FIG. 6 is performed, and the transmission information is transmitted to the plurality of terminals B # 1 to #n (b to g in FIG. 9). Here, if the transmission information is “collected data transmission instruction” (see FIG. 9C), this “collected data transmission instruction” is received (g ₋₁ to
g _-n ), the plurality of terminals B # 1 to #n each return predetermined collection target data to the terminal A (h in FIG. 9).
_{-1 to} h- _n ).

The above data is received by the pseudo terminals M # 1 to #n forming a communication link with the terminals B # 1 to #n, but the pseudo terminals M # 1 to #n receive the received data. Is stored in the information storage area 14 addressed to a single terminal by queue connection in the same manner as in FIG. 8 (i in FIG. 9). Pseudo terminal S is terminal A
Since the destination information and the transmission information received from the terminal are accumulated in the information accumulation area 13 addressed to a plurality of terminals (see d in FIG. 9), it is monitored whether or not data is accumulated in the information accumulation area 14 addressed to a single terminal. , When the data is accumulated from the pseudo terminal S, it is taken out and transmitted to the terminal A (j, k in FIG. 9). Thereby, the terminal A can collect data from the plurality of terminals B # 1 to #n.

Next, another embodiment of the communication method in which the information requesting the data transmission from the single terminal is simultaneously transmitted to the plurality of terminals and the data sent back from the plurality of terminals are simultaneously received by the single terminal Will be explained. As in FIG. 9, an example in which a single terminal A collects data by instructing a plurality of terminals B # 1 to #n to transmit data will be described.
Will be explained.

In this example, the transmission information list 15 is prepared in advance in the packet switch 1 and the transmission information of the transmission information list 15 is stored with the “collected data transmission instruction” (command) as shown in FIG. Every time, the terminal A, which wants to collect communication information from the plurality of terminals B # 1 to #n, makes a link establishment request by using the simultaneous connection special number (a _{1 in} FIG. 10). When a communication link is established between the terminal A and the pseudo terminal S by this request (b in FIG. 10), the pseudo terminal S reads out the destination number and the transmission information stored in the transmission information list 15, and a plurality of them are connected by the queue connection. The information is accumulated in the terminal-addressed information accumulation area 13 (c, d in FIG. 10).

Subsequent operations, that is, a plurality of terminals B # 1- #
n (e to g in FIG. 10) until transmission information (collective data transmission instruction in this example) is sent to n, and a plurality of terminals B #
The operation until the data returned from 1 to #n is received by the terminal A (h to k in FIG. 10) is the same as in FIG.

In the above, an example in which a plurality of terminals B # 1 to #n are fixed and data is collected has been described. However, a part of the destination terminals stored in the transmission information list 15 is designated to collect data. It is also possible to do In this case, similarly to the example described with reference to FIG. 7, the terminal A uses the partial connection special number and makes a link establishment request including information designating some terminals (plurality) in the transmission information list 15 (see FIG. A _{2 of} 10). After that,
Operation until transmission information (collective data transmission instruction in this example) is sent to a plurality of terminals B # 1 to #n (b to g in FIG. 10)
7 is the same as that described with reference to FIG. 7, and the operation (h to k in FIG. 10) until the data returned from the plurality of terminals B # 1 to #n is received by the terminal A is the simultaneous connection special number. The description is omitted because it is the same as the case of connection by.

Next, the transmission information list 15 shown in FIG.
An example in which a plurality of lists are provided and one of them is designated to collect data will be described with reference to FIG.
In this case, similarly to the example described with reference to FIG. 7, the terminal A uses the group-specific connection special number and makes a link establishment request including information designating the transmission information list (a _{3 in} FIG. 10). After that, the operation (b to g in FIG. 10) until the transmission information (collected data transmission instruction in this example) is sent to the plurality of terminals B # 1 to #n is the same as that described with reference to FIG. Since the operation (h to k in FIG. 10) until the data returned from the plurality of terminals B # 1 to #n is received by the terminal A is the same as the content described above, the description thereof will be omitted.

As described above, in the communication method of the present invention described with reference to FIGS. 6 to 14, only one terminal A performs one connection operation to connect to a plurality of terminals B # 1 to #n. It is possible to simultaneously transmit or receive information in packets between a plurality of terminals B # 1 to #n, and simultaneously connect a plurality of terminals to the same terminal to transmit data. As is clear from the above description, in the communication method of the present invention, between the terminal A on the single side and the pseudo terminal S, and between the terminals B # 1 to #n and the pseudo terminals M # 1 to #n on the plural sides. Since a single communication link is set between the terminals, there is no need to perform a link configuration of setting a plurality of communication links between one terminal and a plurality of terminals, which is prohibited by the conventional technology. Therefore, in implementing the present invention, it is not necessary to significantly change the principle of the prior art packet switch.

Further, the communication between the terminal A and the pseudo terminal S on the single side, the plural terminals B # 1 to #n and the plural pseudo terminals M # 1.
Since communication between the terminals # 1 to #n is performed independently of each other, complicated synchronization is taken in transmitting / receiving information between the terminal A on the single side and the terminals B # 1 to #n, and the terminals B # 1 to ## 1.
Even if a part of #n cannot transmit or receive information, there is no fear that the whole operation is stopped.

Although the embodiments of the present invention have been described with reference to FIGS. 6 to 14, FIGS. 6 to 14 merely show a part of the embodiments of the present invention, and the present invention It goes without saying that is not limited to what is shown. For example, in FIGS. 7, 9 and 10, the information storage area 13 for multiple terminals, the information storage area 14 for a single terminal, and the transmission information list 15 are described separately, but these are provided in the packet switch 1. Obviously, the effect of the present invention does not change even if it is provided in the common storage device (not shown). Further, in the above description, the pseudo terminal S
Takes out the information stored in the information storage area 14 addressed to a single terminal, temporarily stores it inside, and then transmits it to the terminal A, and the pseudo terminals M # 1 to #n also store the information storage area addressed to a plurality of terminals.
It has been explained that the information stored in 13 is taken out, once stored in each and then transmitted to the corresponding terminal B,
These memories are stored in the pseudo terminal S or the pseudo terminals M # 1 to #n.
However, the effect of the present invention does not change even if the data is stored not in the inside but outside, for example, in the common storage device in the packet switch 1.

In the above description, the pseudo terminal S stores the information extracted from the transmission information list 15 in the information storage area 13 for a plurality of terminals via the pseudo terminal S, but the extracted information is simulated. It is clear that the effect of the present invention can be obtained even if the information is stored in the information storage area 13 addressed to a plurality of terminals without physically passing through the terminal S.

[0087]

As described above, according to the present invention, one terminal can simultaneously connect with a plurality of terminals by one connection operation and can simultaneously transmit and receive packet information to and from a plurality of terminals. As a result, the operation does not require much labor, and it does not take a long time to transmit information to all of the plurality of terminals. Also, since multiple terminals can connect to the same terminal at the same time and send data at the same time,
The need to reconnect because the same terminal at the destination cannot be connected is greatly reduced. Further, according to the packet communication method of the present invention, a single terminal and a plurality of terminals can be connected at the same time, and one-to-a plurality of terminals can communicate at the same time. Since a plurality of communication links are not directly set between the two, there is a feature that it can be easily applied to the packet switch of the related art.

As described above, the present invention greatly contributes to improvement of communication efficiency and convenience when a single terminal transmits information to a large number of terminals in a packet switch or collects information from a large number of terminals. To do.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of the principle of the present invention (1)

FIG. 2 is an explanatory diagram of the principle of the present invention (2)

FIG. 3 is an explanatory view of the principle of the present invention (3)

FIG. 4 is an explanatory view of the principle of the present invention (4)

FIG. 5 is an explanatory diagram of the principle of the present invention (5)

FIG. 6 is an explanatory diagram of a communication information transmission / reception procedure according to the embodiment of the present invention (1)

FIG. 7 is an explanatory diagram of a communication information transmission / reception procedure according to the embodiment of the present invention (2)

FIG. 8 is an explanatory view (3) of a communication information transmission / reception procedure according to the embodiment of the present invention.

FIG. 9 is an explanatory diagram of a communication information transmission / reception procedure according to the embodiment of the present invention (4)

FIG. 10 is an explanatory diagram (5) of a procedure for transmitting and receiving communication information according to the embodiment of this invention.

FIG. 11 is an information storage state diagram of an information storage area addressed to a plurality of terminals according to the embodiment of this invention.

FIG. 12 is an information storage state diagram of an information storage area addressed to a single terminal according to the embodiment of this invention.

FIG. 13 is a configuration diagram (1) of a transmission information list according to the embodiment of this invention.

FIG. 14 is a configuration diagram (2) of a transmission information list according to the embodiment of this invention.

FIG. 15 is a connection configuration diagram of packet communication of the related art.

[Explanation of symbols]

1, 1a to 1e Packet switch 2, 2a to 2e Terminal (single side) 3, 3a to 3e Terminal (plural side) 4, 4a to 4e Communication link (single terminal side) 5, 5a to 5e Communication link (plural terminal side) ) 11, 11a to 11e Single-side pseudo terminals 12, 12a to 12e Multiple-side pseudo terminals 13, 13a, 13b, 13d, 13e Multiple-terminal-addressed information storage means (multiple-terminal-addressed information storage area) 14, 14c to 14e Single-terminal addressed Information storage means (information storage area for individual terminals) 15, 15b, 15e Transmission information storage means (transmission information list)

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideki Iwamura Inventor Hideki Iwamura 3-9-18 Shin-Yokohama, Kohoku-ku, Yokohama-shi, Kanagawa Fujitsu Communication Systems Ltd. (56) Reference JP-A-5-268265 (JP, A) ) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04L 12/56 260

Claims (9)

(57) [Claims] Terminal of claim 1 alone side to be simultaneously transmits communication information by the packet to a plurality of terminals, requests to connect to a single side pseudoterminal provided packet switching equipment, the single-side pseudo 1-one destination information for each of the plurality of terminals after the communication link has been established and transmits communication information, alone side pseudo terminal receiving the communication information and the destination information between the terminal,
Received information is stored in a queue in order
Is accumulated in the plurality of terminals addressed information storage means having a table, a plurality of multiple side pseudo terminal provided in a packet switching equipment monitors the presence or absence of accumulation of information of the plurality of terminals addressed information storage means, information is accumulated If the program finds that requests each connection to the plurality of terminals addressed information destination information beginning stored in the queue in the storage means and takes out the communication information of the destination information terminal, between the terminal in after one-to-one communications link has been established, the packet communication method between one-to-many terminals and transmits the communication information to the <br/> terminal taken out. 2. A stored in advance communication information transmitted multiple destination information terminal to send the communication information by the packet in the transmission information storage means provided in a packet switching equipment and to each of the plurality of terminals, the A terminal on the independent side that attempts to transmit the communication information to a plurality of terminals at the same time is added to the packet switch with information indicating that the transmission is to the plurality of terminals stored in the transmission information storage means. requesting a connection to provided a single-side pseudo-terminal, said single side of the connected single-side pseudo terminal and terminal, and the destination information of a plurality of terminal stored in the transmission information storage means
Remove the communication information to be transmitted to each of the plurality of terminals, having a sequentially accumulated information queue table in queue format
That is accumulated in the plurality of terminals addressed information storage means, a plurality of multiple side pseudo terminal provided in a packet switching equipment is that the presence or absence of accumulation of information of a plurality terminal addressed data storage unit monitoring, information is accumulated detection result, requesting each connection to the plurality of terminals addressed information queue destination information beginning stored in the inside storage means and takes out the communication information of the destination information terminal, 1 between the terminal After the communication link of the pair 1 is established , the communication information retrieved is
Packet communication method between one-to-many terminals and transmits to the terminal. To wherein the transmission information storage means, stored in advance communication information for transmitting communication information by the packet simultaneously to each of a plurality of said plurality of terminals and the destination information of the terminal that may be transmitted, the plurality of A single side trying to simultaneously transmit the communication information to some of a plurality of terminals
Terminal assigned information indicating that the transmission, the information identifying a plurality of terminals of said part with respect to a portion of the plurality of terminals of the plurality of terminals that are stored in the transmission information storage means Te requesting a connection to a single-side pseudo-terminal provided in a packet switching equipment, the single side of a connected single-side pseudo terminal and terminal, the transmission information storage means of a plurality of terminal stored in the information Remove the communication information to be transmitted to each of the destination information of the plurality of terminals of a part designated as the partial terminal from being accumulated in the plurality of terminals addressed information storage means having a sequentially accumulated information queue table in queue format 3. The packet communication method between one-to-many terminals according to claim 2, wherein Wherein said communication information transmission to be transmitted in advance a plurality of sets setting a combination of a plurality of terminals for transmitting communication information by the packet at the same time as the destination information of a plurality of terminals belonging to each combination to each of the plurality of terminals The terminal on the single side, which is preliminarily stored in the information storage means and which simultaneously transmits the communication information prestored in the transmission information storage means to a plurality of terminals belonging to one of the combinations of the plurality of terminals, is and information indicating that the transmission for a plurality of terminals belonging to a specific combination in the combination of a plurality of sets of terminals stored in the transmission information storage means, the packet switching equipment are designated by the information identifying the particular combination to request a connection to a single-side pseudo-terminal that is provided, said single side of the connected single-side pseudo terminal and terminal, the combination of the transmission information storage means a plurality of sets of terminal stored in Removed destination information of a plurality of terminals belonging to the designated designated conjunction with the communication information to be transmitted to each of the plurality of terminals from the sequentially stored information Kyute in queue format
3. The packet communication method between one-to-many terminals according to claim 2, wherein the information is stored in a plurality of terminal-addressed information storing means having a cable. Wherein a plurality of have a likelihood of transmitting communication information by the packet to a particular terminal simultaneously with other terminal device has a plurality side pseudo <br/> similar terminals provided in a plurality each packet switching equipment requesting a connection to, and sends the one-to-one communication link between one of a plurality side pseudo terminal is established, the destination information and the transmission information for a specific terminal of each transmission destination, a plurality of terminals Each multi-sided pseudo terminal that receives the destination information and the transmission information from each of the above confirms that the received destination information is for a predetermined specific terminal, and sequentially stores the received information in a queue format. Queue table
Is accumulated into a single terminal addressed data storage means having a single-side pseudo terminal provided corresponding to the specific terminal to the packet switching equipment monitors the presence or absence of accumulation of information of the single-terminal addressed data storage unit , information requests a connection to the specific terminal and detects that the accumulated, after the one-to-one communication link between a particular terminal is established, accumulated in the single-terminal addressed data storage unit A packet communication method between one-to-many terminals, wherein the communication information thus obtained is sequentially taken out from the head of the queue and transmitted to the specific terminal. Terminal 6. A single side to be send and receive communication information by packets between a plurality of terminals at the same time, requests a connection to a single-side pseudo-terminal provided in a packet switching equipment, the single-side transmits the destination information and the communication information for each of the plurality of terminals after the one-to-one communication link is established between the pseudo-terminal, single-side pseudo terminal receiving the communication information and the destination information,
Received information is stored in a queue in order
Is accumulated in the plurality of terminals addressed information storage means having a table, a plurality of multiple side pseudo terminal provided in a packet switching equipment is sequentially monitors whether the accumulation of information of the plurality of terminals addressed information storage means, information detects that the accumulated result, and requests each connection to the plurality of terminals addressed information destination information beginning stored in the queue in the storage means and takes out the communication information of the destination information terminal, and the terminal in after one-to-one communications link has been established between the in accordance with the content of the transmitted communication information to the terminal, communication information each of a plurality of terminal receiving the communication information received taken out When the communication information is transmitted for a single side of the terminal, multiple side pseudo terminal corresponding to each terminal, <br/> has sequentially stored information queue table in matrix form waits for each received information alone terminal addressed data storage Accumulated in the means Was the sole side pseudo terminal whether storage is monitoring information of the single-terminal addressed data storage means, the information in the single-terminal addressed data accumulation unit detects that the accumulated, the accumulated communication information packet communication method between one-to-many terminals and transmits the single side of the terminal that is connected sequentially to the single <br/> German side pseudoterminal was removed from the head of the queue. 7. stored in advance communication information for transmitting communication information by the packet simultaneously to each of the transmit and receive the destination information of a plurality of terminals comprising a mating plurality of terminals in the transmission information storage means provided in a packet switching equipment , A single terminal that attempts to transmit / receive communication information in packets to / from the plurality of terminals at the same time is transmission / reception to / from the plurality of terminals stored in the transmission information storage means. requesting a connection to a single-side pseudo-terminal that is provided given the information to the packet switching equipment illustrated, the single side of a connected single-side pseudo terminal and terminal, stored in the transmission information storage means Address information of multiple terminals and
The communication information to be transmitted to each of the plurality of terminals is taken out and stored in a queue form in a plurality of terminal-addressed information storage means having a storage information queue table in sequence, and a plurality of plurality of terminals provided in the packet switch are stored. side pseudo terminal sequentially monitors the presence or absence of accumulation of information of the plurality of terminals addressed information storing means, detects that the information has been accumulated result, each stored in a head of the queue in the plurality of terminals addressed information storage means are taken out destination information and communication information are requesting a connection to a terminal of the destination information, after a one-to-one communication link between the terminal has been established, each connecting the communication information extracted When the communication information is transmitted to the terminal on the single side in accordance with the content of the communication information received by each of the plurality of terminals that has received the communication information, the multiple side pseudo corresponding to each terminal is transmitted. Similar terminals Each was stored in <br/> alone terminal addressed data storage means having a sequentially accumulated information queue table in matrix form waits to receive information, the sole wherein monitoring the presence or absence of accumulation of information alone terminal addressed data storage unit side pseudo terminal, said the single-terminal addressed data storage means in the information is detected to be stored, are sequentially taken out from the top of the waiting accumulated communication information matrix is connected to the single <br/> German side pseudoterminal packet communication method between one-to-many terminals and transmits the single side of the terminal has. To wherein said transmission information storage means, is previously stored communication information to be transmitted are likely to simultaneously transmit and receive communication information by the packet and the destination information of the plurality of terminals to each of the plurality of terminals, said plurality of A single side that tries to send and receive communication information at the same time with some of some terminals
Of the plurality of terminals stored in the transmission information storage means, information indicating that the communication is performed with a part of the plurality of terminals, and a part of the plurality of terminals. denoted by the identifying information requesting a connection to a single-side pseudo-terminal provided in a packet switching equipment, the single side of a connected single-side pseudo terminal and terminal, stored in the transmission information storage means multiple terminals addressed with sequentially accumulated information queue table in a plurality of waiting retrieves the communication information matrix form to be transmitted to each of the destination information of the plurality of terminals of a part designated as the partial terminal from the information terminal The packet communication method between one-to-many terminals according to claim 7, characterized in that the packet is stored in the information storage means. 9. The combination of a plurality of terminals simultaneously transmit and receive communication information by the packet in advance a plurality of sets setting, the communication information to be transmitted to each of the plurality of the plurality of terminals and the destination information of the terminal belonging to each combination The terminal on the single side that is preliminarily stored in the transmission information storage means and tries to simultaneously transmit and receive communication information with a plurality of terminals belonging to one of the plurality of combinations is stored in the transmission information storage means. information indicating that a communication for transmitting and receiving between a plurality of terminals belonging to a specific combination in the combination of a plurality of terminals stored, packet switches are given the information that identifies the particular combination requesting a connection to a single-side pseudo-terminal disposed within the single side of a connected single-side pseudo terminal and terminal is specified from among a plurality of sets of combinations stored in the transmission information storage means Specific combination Remove the communication information to be transmitted to each of the plurality of the plurality of terminals and the destination information of the terminal belonging to, have a sequentially accumulated information queue table in queue format
Multiple terminal addressed data packet communication method between a pair plurality of terminals according to claim 7, characterized in that stored in the storage means that.