JPS6370652A - Packet conference exchange system - Google Patents

Abstract

PURPOSE:To easily hold a conference among three or over subscribers by generating a data packet sent to all conference participants from a call packet exchange from a call data packet and sending the packet to an incoming packet exchange. CONSTITUTION:When an outgoing subscriber 21 receives a data packet 27, an outgoing packet exchange 24 sets initially a counter (i) (in this case 2) counting whether or not the packet 27 is sent to all conference participants 22, 23. Then a data packet buffer is assured in a memory, the content of the received packet 27 is copied to generate data packets 28, 29 addressed to the participants 22, 23. Then a destination address of the participants 22, 23 is written in the memory buffer to complete the production of the contents of the packets 28, 29. The contents of the generated packets 28, 29 are sent to the packet exchanges 25, 26 to judge whether or not the contents of the packets 28, 29 are sent to all the participants 22, 23. When the transmission is finished, the operation is finished and when the transmission is not finished, the counter is increased to (i+1) to repeat said operation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a packet switching network, and particularly to a packet conference switching system for holding a conference between three or more parties.

(Prior Art) Conventionally, in a packet switching network, communication has been one-to-one bidirectional communication.

(Problems to be Solved by the Invention) The conventional packet communication described above will be discussed as one-to-one bidirectional communication, so when a conference is held with three or more subscribers, The drawback is that each participant must set up multiple calls between themselves, and each conference participant must send the same data packet to all.

An object of the present invention is to provide a packet conference exchange system in which a plurality of packet converters are connected by relay lines to form a packet switching network, and a conference is held between three or more subscribers accommodated in these packet exchanges. In the data bucket corresponding to the number of participants participating in the conference at the originating packet switch) f
The above drawbacks are overcome by generating and copying the contents of outgoing data packets from the originating subscriber into these data packets, giving each data packet the address of a conference participant, and sending said data packet to the incoming packet switch. It is an object of the present invention to provide a packet conference exchange system configured to easily hold a conference between three or more subscribers.

(Means for Solving the Problems) The packet conference switching system according to the present invention connects a plurality of packet switching devices using relay lines to form a packet switching network, and three or more parties accommodated in the plurality of packet switching devices The system is configured to hold conferences between subscribers.

In the above, the packet switch generates a data packet complementary to the number of subscribers participating in the conference at the time of transmission, copies the contents of the outgoing data packet from the originating subscriber to the data packet, and assigns the entire address of the subscriber participating in the conference to the data packet. The data packet is configured to include first means for transmitting data packets and second means for receiving data packets.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a packet switching network that implements a packet conference switching system according to the present invention.

In Figure 1, 1 to 3 are conference participants, 4 to 6, respectively.
are each a packet switch.

In FIG. 1, subscribers 1 to 3 conduct all packet conferences,
The originating packet switch 4 generates data packets addressed to the subscribers 2 and 3 based on the transmitted data packet from the subscriber 1, and sends the data packets 'xMFJ to the packet switches 5 and 6. An outgoing data packet from subscriber 2 is converted by packet switch 5 into a data packet addressed to subscriber 1 and a data packet addressed to subscriber 3, and sent to packet switches 4 and 6, respectively. Similarly, an outgoing data packet from subscriber 3 is converted by packet switch 6 into a data packet destined for subscriber 1 and a data packet destined for subscriber 2, and sent to packet switch 4.5.

FIG. 2 is an explanatory diagram showing the operation of the embodiment shown in FIG. 1. In FIG. 2, 21 to 23 are conference participants, and 4 to 6 are packet exchangers.

In FIG. 2, subscriber 21's outgoing data packet 27
is converted by the packet switch 24 into a data packet 28 addressed to the subscriber 22 and a data packet 29 addressed to the subscriber 23, and transmitted to the packet switches 25 and 26, respectively.

FIG. 3 is a flowchart showing the operation of the originating packet switch of the embodiment shown in FIG.

First, in operation step 31, the originating packet switch receives all data packets from the originating subscriber.

Next, in operation step 32, a counter s for counting whether the received data packets have been transmitted to all conference participants is initialized. In operation step 33, a data packet memory buffer for generating a data packet addressed to conference participant i is secured in memory. In operation step 34, the contents of the data packet received in operation step 31 are copied to the memory buffer secured in operation step 33. In operation step 35, all the destination addresses of conference participant i are added to the memory buffer, and the content of the data packet addressed to conference participant i is completed. Operation step 3
In step 6, the contents of the data packet created in operation step 35 are transmitted to the packet switch accommodating conference participant i. In operation step 37, it is determined whether the contents of the data packet received in operation step 31 have been transmitted to all conference participants.

Therefore, if the transmission has been completed to all conference participants, the above operation is completed, and if the transmission has not been completed, operation step 3 is completed.
At step 8, the counter i'' is set to the next conference participant and the steps after operation step 33 are repeated.

(Effects of the Invention) As explained above, the present invention generates data packets from all outgoing data packets to be transmitted to all conference participants at the outgoing bucket switch, and generates the data packets sent to the incoming packet switch that accommodates the conference participants. By transmitting the same data packets, conferences can be exchanged even in a packet-switched network.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a packet switching network that implements a packet conference switching system according to the present invention. FIG. 2 is an explanatory diagram showing the operation of the embodiment shown in FIG. 1. FIG. 3 is a flowchart showing the operation of the originating packet switch of the embodiment shown in FIG. 1-3. 21-23... Conference participants 4-6. 24-26... Packet switch 27-29.
...Data packets 31 to 38...Operation steps

Claims (1)

[Claims] In a packet conference switching system configured to form a packet switching network by connecting a plurality of packet exchanges via relay lines, and holding a conference between three or more subscribers accommodated in the plurality of packet exchanges, Each of the packet switches generates data packets corresponding to the number of participants participating in the conference at the time of transmission, copies the content of the outgoing data packet from the calling subscriber to the data packet, and assigns the address of the subscriber participating in the conference to the data packet. 1. A packet conference exchange system comprising: first means for transmitting said data packets; and second means for receiving said data packets.