JP2004015102A - Connection system and exchanger of access network subscriber holding net - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set a communication path without using the resource of a line connected to an exchanger and a switch resource in the exchange, when subscribers in the same access network device conduct communications. <P>SOLUTION: When the arrival number of setup from the subscriber 3 is analyzed in the exchanger 1 and the subscriber 3 and the subscriber 4 (Internet network) are determined to exist within the same access network, an allocation message for requesting the communication path setting of the subscribers is transmitted, and the communication path 8 is set among the subscriber 3, the network device 2 and the subscriber 4. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a switching system accommodating an access network for transmitting various information such as voice, image, data, etc., and more particularly to an extension connection and Internet connection system.
[0002]
[Prior art]
In recent years, the Internet connection via a public network has been increasing. Since Internet connection time is longer than telephone connection time, switching resources in the exchange are used for a long time. For this reason, there is a problem that the frequency of connection failure due to insufficient switch resources is increasing. The above-described problem also occurs in the exchange accommodating the access network.
[0003]
Therefore, as shown in FIG. 5, the connection system of the conventional switching system includes a switching system 1, an access network device 2, and subscribers 3 and 4 in the access network. When communication is performed from the subscriber 3 to the subscriber 4, an ALLOCATION message for setting a communication path for each of the calling side and the called side is transmitted. That is, as shown in FIG. 6, in the ETSI recommendation ETS 300 347-1 (V5.2 interface specification), each of the calling side and the called side uses a line resource (time slot of the line 5) connected to the access network. Use the switch resources in the exchange.
[0004]
[Problems to be solved by the invention]
However, in the conventional method, even in communication between subscribers in the same access network device, switch resources in the exchange are used by using resources of a line connected to the exchange.
Therefore, an object of the present invention is to provide a communication path for a subscriber in the same access network device without using the resources of the line connected to the switching device and without using the switch resources in the switching device. Is to provide an exchange that can be set.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a switching system, which is connected to an exchange and includes an access network device accommodating a plurality of subscribers, analyzes a signal from an originating subscriber, Means for determining whether the called subscriber and the called subscriber are in the same access network, and a communication path with the exchange when the calling subscriber and the called subscriber are in the same access network. Means for setting a communication path via the access network device without setting the communication path.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described in detail with reference to the drawings.
Referring to FIG. 1, in a first embodiment of the present invention, an exchange 1 is connected to an access network device 2 via a line 5, and a subscriber 3 and a subscriber 4 are connected via an ISDN line 6 and an ISDN line 7, respectively. Connected to the access network device 2. The exchange 1 includes a calling / calling number analyzing unit, and the access network device 2 includes a communication path setting unit.
[0007]
The calling / calling number analyzing means and the communication path setting means operate as follows.
The calling and called number analyzing means has a function of analyzing the called number of SETUP and, when judging that the connection is within the same access network, editing and transmitting an ALLOCATION message as shown in FIG. The communication path setting means has a function of setting a communication path of the loopback connection in the apparatus by the ALLOCATION message shown in FIG.
[0008]
Next, the overall operation of the present embodiment will be described in detail with reference to FIG.
When the subscriber 3 communicates with the subscriber 4, a SETUP is sent from the subscriber 3 as a message. When the exchange 1 receiving the SETUP determines by the calling / calling number analyzing means that it is connected to the subscriber 4 (Internet network) in the same access network, or that the initial number and the called number are in the same access network, the exchange 1 shown in FIG. Send an ALLOCATION message. At the time when the analysis of the called number is completed, CALL PROC is transmitted to the subscriber 3 and a SETUP message is transmitted to the subscriber 4.
[0009]
The access network device 2 that has received the ALLOCATION message of FIG. 2 determines the connection within the own device by the communication path setting means and sets a communication path necessary for communication between the subscribers 3 and 4. The subscriber 4 receiving the SETUP sends ALERT to the exchange 1. The exchange 1 receiving the ALERT sends the ALERT to the subscriber 3. When the subscriber 4 is ready for a call, it sends CONNECT to the exchange 1. The exchange 1 having received the CONNECT returns a CONNECT ACK to the subscriber 3 and sends the CONNECT to the subscriber 4.
According to the above procedure, the communication path between the subscriber 3 and the subscriber 4 does not set the communication path in the exchange 1, so that the line resources between the exchange 1 and the access network device 2 and the switch resources in the exchange 1 are used. Not to
[0010]
【The invention's effect】
As described above, according to the present invention, the connection within the same access network device can be established with the use of the minimum network resources, and there is no need to set the communication path in the exchange. In this case, the connection time can be reduced as compared with the related art.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 2 shows a format of a communication path setting request from the exchange 1 to the access network device 2 of the present invention.
FIG. 3 is a sequence diagram illustrating an operation of the exemplary embodiment of the present invention.
FIG. 4 is a block diagram showing a configuration of a conventional embodiment.
FIG. 5 is a format of a conventional communication path setting request from the exchange 1 to the access network device 2;
[Explanation of symbols]
1 exchange 2 access network device 3, 4 subscriber 5 line 6, 7 ISDN line 8, 9, 10 communication path

Claims (4)

In a switching system having an access network device accommodating a plurality of subscribers, the switching system being connected to an exchange,
Means for analyzing a signal from the calling subscriber to determine whether the calling subscriber and the called subscriber are in the same access network,
Means for setting a communication path via the access network device without setting a communication path with the exchange when the calling subscriber and the called subscriber are in the same access network. A connection system for accommodating a subscriber network of an access network. 2. The connection system according to claim 1, wherein the called subscriber is an Internet network. In an exchange provided with an access network device accommodating a plurality of subscribers,
Means for analyzing a signal from the calling subscriber to determine whether the calling subscriber and the called subscriber are in the same access network,
Means for setting a communication path only through the access network device without setting a communication path with the exchange when the calling subscriber and the called subscriber are in the same access network. An exchange characterized by the above-mentioned. 4. The exchange according to claim 3, wherein the called subscriber is an Internet network.

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