JPH05225088A - Simultaneous down-loading method for terminals - Google Patents

Abstract

PURPOSE:To simultaneously down load all the terminals in communication on the same interface in down-loading a program to terminals from a host connected to the digital integrated communication network. CONSTITUTION:A host 11 is connected to a digital integrated communication network via I interface, and terminals 13, 14, and 15 are connected with the digital integrated communication network via the same bus wire. The host 11 or the terminal 13 sends a message through line exchange or packet exchange, the host 11 and terminals 13-15 are in communication with the same communication channel, simultaneously down-loading the programs sent by the host 11 to terminals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication network, for example, a comprehensive digital communication network, in which programs and data are simultaneously sent from a host side to a plurality of terminals connected to the same subscriber interface (I interface). Regarding the method.

[0002]

2. Description of the Related Art Conventionally, the following can be considered as a download method in this type of system.

FIG. 5 shows a sequence of a conventional download system. In FIG. 5, the host 1 transmitting the program transmits an outgoing message to the terminal 3. A call setup message (SETUP) is used when downloading is performed by circuit switching, and a call packet (C) is used when downloading a program by packet switching.
R) is used. In this conventional example, the case of circuit switching is shown. The terminal 3 which has received the outgoing message sends a response message (CONNECT) to download the program according to the instruction in the message. After shifting to the in-communication state, the host 1 actually transmits the program data having the program content. The terminal 3 writes the received data in the writable program area.

[0004]

However, in the above-described conventional download method, even when the same program is downloaded to the terminals connected to the same interface, communication is performed by the number of terminals to download. Therefore, there is a problem that the processing time is long and the efficiency is low.

The present invention is intended to solve such a conventional problem, and an object thereof is to provide an excellent simultaneous download method for a plurality of terminals capable of simultaneously downloading programs having the same contents to terminals on the same interface. To do.

[0006]

In order to achieve the above object, the present invention sends a call setup message including an identifier for instructing the download of a program to a communication network to allow the first terminal to communicate with the first terminal. It is connected via a communication channel of the network and is connected to a host side device for transferring a program and a subscriber interface of the same communication network as the first terminal. When a call setup message is received, it is connected to the communication channel and transferred. And a plurality of second terminals that receive and store the program that is stored simultaneously with the first terminal.

[0007]

Therefore, according to the present invention, when the programs having the same contents are downloaded to the terminals on the same interface, the terminals other than the terminal in communication are connected to the same communication channel to be in the communication state, It has an effect that it can be downloaded to all terminals on the same interface by one-time communication.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings.

FIG. 1 shows a system configuration in an embodiment of the present invention. In FIG. 1, reference numeral 11 is a host device for transmitting program data to the terminal side, and 13, 1
Reference numerals 4 and 15 are terminals connected to an integrated digital communication network (hereinafter abbreviated as network) 12 by the same bus connection of the I interface. The terminal 13 is a terminal that communicates with the host 11 and is downloaded. Terminal 14,
Reference numerals 15 are terminals that are simultaneously downloaded by receiving the contents downloaded by the terminal 13, respectively. In the present embodiment, an example of downloading in the basic interface will be shown.

FIG. 2 shows a sequence according to the first embodiment of the present invention. The same reference numerals as those in FIG. 1 are given in FIG.
Shows the same thing as.

Next, the operation of the first embodiment will be described. In FIG. 2, the host 11 sends a call setup message (S
ETUP) 21 is transmitted. In the call setup message 21, an identifier for instructing program loading is included as a user-user information element. In addition, a sub address is included to specify the terminal 13. When the terminal 13 receives the call setup message 22 of the sub address from the network 12, the terminal 13 checks the user / user information element, detects that it is an incoming call for download, and sends a response message (CONNECT) 23. Host 11
Receives the reply message 24, and the reply confirmation message 2
5 is sent out. The terminal 13 receives the response confirmation message (CONNECT ACK) 26 from the network 12, and connects the B channel in both the transmitting and receiving directions. When the terminals 14 and 15 receive the call setting message 22, the terminals 14 and 15 respectively connect only the designated receiving direction of the B channel.
Next, when the host 11 receives the response message 24, it connects the B channel, becomes in communication, starts in-band program download on the B channel, and sends a transmission start notification 27. The terminals 14 and 15 start a timer and wait for communication from the host by the in-band. When the time-out occurs, it is considered that a failure such as the terminal 13 not responding occurs, and the B channel is released immediately. The host 11 that has transitioned to the communicating state transmits the content of the program to be downloaded. Terminals 13, 1
Each of 4 and 15 downloads the received data 28 to the program writing area. When the host 11 finishes transmitting the program data, it sends a transmission end communication 29 to the terminal 13. The host 11 and the terminal 13 send and receive disconnection messages 30 and 31, release messages 32 and 33, and release completion messages 34 and 35 to release the B channel. Upon receiving the transmission end notification 29, the terminals 14 and 15 release the B channel.

As described above, according to the first embodiment,
In the case of the circuit switching service, a plurality of terminals 13 on the same interface can be obtained by a single communication from the host 11.
There is an effect that it can be downloaded to 14 and 15 at the same time.

FIG. 3 shows the sequence of the second embodiment of the present invention. The same reference numerals as those in FIG. 1 indicate the same parts as those in FIG.

Next, the operation of the second embodiment will be described. In the second embodiment, the host 11 sends out a call packet (CR) 41. Calling packet (C
R) 41 includes an identifier for instructing program loading as user data. In addition, a subaddress is used to specify the terminal 13. Terminal 13
Call setup message for your own subaddress (SETUP)
42, the user / user information element is checked, and when it is detected that the incoming call is for downloading, the call setting acceptance message 43 and the response message (CO
CONNECT) 44, and then an incoming packet (C
When N) 45 is received, a response packet (CA) 46 is returned. The terminals 14 and 15 manage the termination point identifier (TEI) and the logical channel used by the terminal 13, and after detecting the call setup message 42 for the terminal 13, each captures the packet using the logical channel. When the communication state is entered, the host 11 puts on the data packet (DT) 47 information to start the program download and transfers it to the terminal side. Next, host 11
Then, download the data packet (DT)
Transfer by 47. Upon receiving the data packet 47, the terminals 13, 14 and 15 download the data packet 47 to the program writing area. When transmission / reception of program data is completed, the host 11 or terminal 1
3 sends a disconnect packet (CQ). In the second embodiment, the disconnect packet (CQ) 48 is transmitted from the terminal 13. The terminal 13 sends a disconnection confirmation packet (CF) 49 to release the call. When detecting the disconnection packet (CQ) 48 to the terminal 13, the terminals 14 and 15 cancel the data reception state.

As described above, according to the second embodiment,
Using the D-channel packet switching service, there is an effect that the host 11 can simultaneously download to a plurality of terminals 13, 14, 15 on the same interface by one-time communication.

FIG. 4 shows the sequence of the third embodiment of the present invention. The same reference numerals as those in FIG. 1 indicate the same parts as those in FIG.

Next, the operation of the third embodiment will be described. In the third embodiment, the host 11 first seizes the B channel, and therefore the call setup message (SE
TUP) 61 is transmitted. An identifier for instructing download is included in the call setup message 61 as a user / user information element. In addition, a subaddress is used to specify the terminal 13. When the terminal 13 receives the call setup message 62 of the sub address from the network 12,
When the user-user information element is checked and it is detected that the incoming call is for downloading, a response message (CONNECT) 63 is sent out. Terminal 13 is network 1
Response confirmation message (CONNECT) from 2 6
When receiving 5, the B channel is connected in the transmitting and receiving directions.
At the terminals 14 and 15, the above call setup message 6
When 2 is received, only the reception direction of the designated B channel is connected. Next, when the host 11 receives the response message (CONNECT) 64, it connects the B channel and then sends out a call packet (CR) 66. Upon receiving the incoming call packet (CN) 67, the terminal 13 returns a response packet (CA) 68 and enters the data reception mode. The terminals 14 and 15 manage the TEI and the logical channel used by the terminal 13, and after detecting the call setup message 62 for the terminal 13, each captures the packet using the logical channel. When entering the communicating state, the host 11 sends a data packet (DT).
In 69, a transmission start notification indicating that the program download is started is sent, and it is transferred to the terminal side. Next, host 11
Then, download the data packet (DT)
Transfer from 69. Upon receiving the data packet 69, the terminals 13, 14 and 15 download the data packet 69 to the program writing area. When transmission / reception of program data is completed, the host 11 or terminal 13
Sends a disconnect packet (CQ) 70. Terminal 13
A disconnection confirmation packet (CF) 71 is sent to release the call. Next, the used B channel is released by the disconnect message (DISC) 72. The terminals 14 and 15 are
When the disconnect packet (CQ) 70 to the terminal 13 is detected,
The data reception state is released, and the B channel being captured is released.

As described above, according to the third embodiment, the B channel packet switching service is used and the host 1
There is an effect that it is possible to simultaneously download to a plurality of terminals 13, 14, 15 on the same interface by one communication from 1.

In the first, second and third embodiments described above, the host 11 transmits the call for downloading, but this may be a call from the terminal side. Further, the identifier for downloading can also include the identification of the content of the program to be downloaded. In this case, the content of the program to be downloaded can be selected by the terminal. At the same time, up to 8 terminals can be downloaded.

[0020]

The present invention has the following effects, as is apparent from the above-mentioned embodiments.

(1) When there are a plurality of terminals on the same interface, a plurality of terminals can be downloaded by one download, so that the total processing time on the host side can be shortened, and the host side or the network can be shortened. It also reduces the burden on the side and saves communication charges.

(2) Since terminals downloaded on the same interface are always the same, a plurality of versions will not be mixed by the same user.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a download system showing an embodiment of the present invention.

FIG. 2 is a diagram of a processing sequence of the first embodiment.

FIG. 3 is a diagram of a processing sequence of a second embodiment.

FIG. 4 is a diagram of a processing sequence of a third embodiment.

FIG. 5 is a diagram of a processing sequence of a conventional download method.

[Explanation of symbols]

 11 host 12 integrated digital communication network 13-15 terminals

Claims (2)

[Claims] 1. A host side, which is connected to a first terminal via a communication channel of the communication network by transmitting a call setting message including an identifier for instructing download of the program, to transfer the program. A device and a subscriber interface of the same communication network as the first terminal, and when the call setup message is received, the device is connected to the communication channel and the transferred program is received simultaneously with the first terminal. A multiple terminal simultaneous download method comprising a plurality of second terminals for storing. 2. The host-side device and the first and second devices
2. The simultaneous download method for a plurality of terminals according to claim 1, wherein the call setup procedure and the data transfer between the terminals are performed by circuit switching or packet switching.