JPH07123150A - Trigger analysis system for communications network - Google Patents

Abstract

PURPOSE:To easily perform the processing on the transmission node side at the time of starting the service function arranged in a high function node in the communication network where determining and executing functions of the service simultaneously presented to one terminal in the network are distributedly arranged in plural nodes. CONSTITUTION:A transmission node 2 receives a signal 4 of a terminal 1 to discriminate a trigger (5); and at the time of trigger detection (7), the node issues a service analysis request 8 to a high function node 3 to set the processing interrupted state that the other signals of the terminal 1 are not processed (9), and the node 2 waits for the analysis result. The node 3 performs detailed analysis 10 and returns an analysis result 11. The node 2 discriminates the analysis result 11 (12); and at the time of mishit (14), the node 2 performs transmission node analysis and call processing 15 to execute the transmission node independent service. The processing of another signal 17 of the terminal 1 received during the wait for the analysis result 11 is held till the end of the processing 12, 15, or 16 for analysis result reception. Thus, the call processing state of the terminal 1 at the time of analysis result reception is performed in the same manner as that at the time of analysis request to facilitate the processing of the node 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a function of determining and executing a service to be simultaneously provided to one terminal in a network by a transfer node accommodating a terminal and a high function node connected to the transfer node without accommodating the terminal. The present invention relates to a trigger analysis method in a communication network that is distributed and distributed to multiple types of nodes.

[0002]

2. Description of the Related Art Conventionally, in this type of communication network, a called party charging service, which is arranged in a high function node such as a service control point (SCP) according to a signal from a terminal such as a telephone, When activating a service function such as a user billing service, a simple analysis such as screening of a table called a trigger table is performed at a transmission node such as an exchange that accommodates the terminal, and the high-performance service of the terminal is confirmed. Trigger determination that detects only the possibility of providing is performed, and when a trigger that is determined to be possible is detected, Provide Instructions FC (provide instructio)
ns Functional Component) to the high-performance node to request service analysis, and the high-performance node side provides the above-mentioned Provide Instructions FC.
Based on the contents of the parameters in the above, a method is used to judge and decide whether or not an actual service exists. Such a method is generally called a trigger analysis method, and an example thereof is described in, for example, "The Institute of Electronics, Information and Communication Engineers, March 1989 Exchange Research Group Paper, SSE88-202".

[0003]

By the way, in this type of trigger analysis method, when a trigger is detected, a transmission node that has notified a service analysis request in order to make a high-performance node determine and determine the presence or absence of an actual service. It is generally considered that the terminal is configured to continue processing other terminal signals.

FIG. 3 is a diagram showing a trigger analysis processing sequence in such a case. As shown in the figure, the transfer node 2 that has received a terminal signal 4 such as a dial signal from a certain terminal 1 makes a trigger determination 5, and if no trigger is detected (6), transfer node analysis / call processing 15 Then, a service that can be provided by the transmission node alone, such as a connection service with another terminal, a call waiting service, and a time notification service, is executed. On the other hand, when a trigger that cannot be serviced by the transmission node alone is detected (7), the service analysis request 8 is output to the high function node 3 and the processing of other terminal signals from the terminal 1 is continued (19). When the high function node 3 receives the service analysis request 8, the high function node 3 performs a detailed analysis 10 on whether to provide the high function service to the terminal 1, and returns an analysis result 11 to the transmission node 2.

When the transmission node 2 receives the analysis result 11 from the high function node 3, the transmission node 2 makes an analysis result judgment 12, and when the service is decided in the high function node 3 (this is called a hit) 13, the high function is obtained. The service is executed together with the intelligent node 3. On the other hand, when the service is not determined in the high function node 3 (this is called a mishit) 14, the transmission node 2
The analysis / call processing 15 of the transmission node service in the above is performed.

FIG. 4 is a processing sequence diagram when the transmission node 2 receives a terminal signal 17 such as a disconnect signal from the terminal 1 while the transmission node 2 is waiting for the analysis result 11 from the high function node 3 with respect to the terminal 1 in FIG. Is. As described with reference to FIG. 3, since the transfer node 2 continues processing even after the service analysis request 8 is output, the transfer node 2 that has received the terminal signal 17 accordingly performs the process 20 when receiving the terminal signal. Would go and process the terminal signal 17. Then, after that, when the analysis result 11 is received from the high function node 3, the call state relating to the terminal 1 of the transmission node 2 is changed by the processing of the terminal signal 17, so that the same processing as in FIG. Individual processes 21 and 22 are performed according to the contents of 17.

As described above, when a service function arranged in a high function node is activated in a communication network in which a function of determining and executing a service to be simultaneously provided to one terminal in the network is arranged in a plurality of nodes. , If the transmission node continues to process other signals from the terminal even after the trigger is detected by the transmission node and the service analysis request is sent to the high-performance node, wait for the analysis result from the high-performance node. If a new terminal signal is received at the transmission node from the terminal while the node is present, the processing corresponding to the terminal signal is performed, so the call processing state for the terminal may change. On the other hand, when such a terminal signal is not received, the call processing state of the terminal is the same as that at the time of analysis request. Therefore, when the analysis result is received from the high function node, there are cases where the call processing state is different from that at the time of the analysis request, and there is a case where it is not changed. Since the processing state is set, there arises a problem that the subsequent processing procedure becomes complicated.

The present invention solves such a problem. An object of the present invention is to detect a trigger at a transmission node when a service function arranged in a high function node is activated and analyze the service to the high function node. After notifying the request, the transfer node suspends the processing of other terminal signals from the terminal and waits for the analysis result, so that the call processing state of the terminal at the time of receiving the analysis result can be changed when the analysis request is made. This is to facilitate the subsequent processing at the transmission node.

[0009]

In order to achieve the above object, the present invention provides a plurality of types of nodes, that is, a transfer node accommodating a terminal and a high function node connected to the transfer node without accommodating the terminal. In a communication network in which the decision and execution function of the service to be provided to one terminal in the network at the same time is distributed and arranged in multiple nodes, the service function arranged in the high function node according to the signal from the terminal At the time of activation, the transmission node accommodating the terminal performs a trigger determination to detect only the possibility of providing the service function by a simple analysis, and when the trigger is determined to be possible, the actual service In a trigger analysis method in which presence / absence determination and determination are performed by a high-performance node, when a trigger for a certain terminal is detected, the transmission node becomes a high-performance node at the transmission node. After sending a service analysis request, the device itself transitions to the call control right transition preparation state, interrupts the processing of other terminal signals, waits for the analysis result, receives the analysis result, and then performs call control when the service is determined at the high function node. When the service is undecided, the call control right transfer preparation state is canceled and the processing of the transfer node is continued.

[0010]

When a trigger for a certain terminal is detected, the transfer node notifies the high function node of the service analysis request and shifts to the call control right transfer preparation state, and then processes other terminal signals from that terminal. Processing is suspended and the analysis result is waited for, the processing will be suspended even if a terminal signal is received from the relevant terminal, and the call processing state of the relevant terminal at the time of receiving the analysis result will be the same as when the analysis request was made. The subsequent processing at the transmission node becomes easy.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings.

Referring to FIG. 1, a communication network to which a trigger analysis method in a communication network according to an embodiment of the present invention is applied includes a plurality of terminals 1 such as telephones, a plurality of transfer nodes 2 such as an electronic exchange, and an SCP. And other high-performance nodes 3. Terminal 1 is one of transfer nodes 2
Housed in. Each transfer node 2 has a service determination / execution unit, communicates with the subordinate terminal 1 and another transfer node 2, and can be provided by the transfer node alone, such as a connection service with another terminal, a call waiting service, etc. Realize the service. Further, a high-performance service such as a called party billing service is realized together with the high-function node 3. High-performance node 3
Also has a service determination / execution unit, and realizes a highly functional service while communicating with the transmission node 2. The high function node 3 does not accommodate the terminal 1.

In the communication network of this embodiment,
A function for determining and executing a service to be simultaneously provided to one terminal 1 in the network is distributed and arranged in a plurality of nodes 2 and 3, and a service function is arranged in the high function node 3 according to a terminal signal from the terminal 1. When activating, the transmission node 2 accommodating the terminal 1 makes a trigger determination to detect only the possibility of providing the service function by a simple analysis, and when the trigger is determined to be possible, the actual service is detected. There is no difference from the conventional one in that the presence / absence determination and determination are performed by the high function node 3, and the differences are as follows.
When the trigger is detected, the transmission node 2 notifies the high-performance node 3 of the service analysis request regarding the terminal requesting the high-performance service, transitions to the call control right transition preparation state, and then interrupts the processing of other terminal signals. After waiting for the analysis result, after receiving the analysis result, when the service is determined in the high-performance node 3, the state transitions to the call control right transition state, and when the service is not determined, the call control right transition preparation state is released and the processing of the transmission node continues. In point. The operation of this embodiment will be described below with reference to FIG.

FIG. 2 shows a trigger analysis processing sequence when the transmission node 2 receives a terminal signal. Upon receiving the terminal signal 4 such as a dial signal from the terminal 1, the transmission node 2 makes a trigger determination 5 and, when the trigger is detected 7, issues a service analysis request 8 to the high function node 3 and calls control right for the terminal 1. After transitioning to the transition preparation state, processing of other terminal signals from the terminal 1 is not performed, that is, processing is suspended (9) and the analysis result is waited. Further, when the trigger is not detected 6, the transmission node analysis / call processing 15
Then, the sequence is advanced to the side executing the transmission node independent service.

When the high function node 3 receives the service analysis request 8 from the transmission node 2, it performs a detailed analysis 10 and returns the analysis result 11 to the transmission node 2.

When the transmission node 2 that has not processed other signals with respect to the terminal 1 receives the analysis result 11 for the previous service analysis request 8 from the high function node 3, it makes an analysis result determination 12 and hits. At time 13, that is, when the service is determined in the high function node 3, the call control right is transferred to the high function node 3 (16), and thereafter, the signal exchanged between the terminal 1 and the high function node 3 is transmitted, The service is executed according to an instruction from the high function node 3 side.

On the other hand, at the time of mishit 14, that is, when the service is not decided in the high function node 3, the transfer node 2 analyzes the transfer node service and performs the call processing 15, and advances the sequence to the side which executes the transfer node independent service.

Here, as shown in FIG.
When receiving a terminal signal 17 such as a disconnection signal from the terminal 1 while waiting for the analysis result 11 from the high function node 3, the transfer node 2 does not process other terminal signals from the terminal 1 Therefore, the processing of the terminal signal 17 is waited until the processing 12, 15 or 16 at the time of receiving the analysis result is completed. This eliminates the need to consider the state transition due to the reception of the terminal signal during the analysis, and facilitates the processing at the transmission node 2. At the time of mishit 14, the processing 18 of the terminal signal 17 is executed after the transfer node analysis / call processing 15. For example, when the terminal signal 17 is a disconnection signal, the disconnection processing is executed. Also, at the time of hit 13,
Since the terminal signal 17 is processed after the call control right transfer 16, the terminal signal 17 is transmitted to the high function node 3, and in the case of the disconnection signal, the disconnection process is performed on the high function node 3 side.

[0019]

As described above, according to the present invention, when the service function arranged in the high function node is activated,
When the transmission node detects a trigger, it notifies the high function node of the service analysis request, then interrupts the processing of other terminal signals from the service request source terminal and waits for the analysis result, so it receives the terminal signal from the corresponding terminal. Also, the processing will be suspended, and the call processing state applied to the terminal at the time of receiving the analysis result from the high function node can be made the same as that at the time of the analysis request, and the processing at the transmission node will be easy. is there.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a communication network to which the present invention is applied.

FIG. 2 is a diagram showing a trigger analysis processing sequence in an embodiment of the present invention.

FIG. 3 is a diagram showing a conventional trigger analysis processing sequence.

FIG. 4 is a diagram showing a conventional trigger analysis processing sequence when a terminal signal is received during analysis result waiting.

[Explanation of symbols]

 1 ... Terminal 2 ... Transfer node 3 ... High function node 4 ... Terminal signal 5 ... Trigger judgment 6 ... Trigger not detected 7 ... Trigger detected 8 ... Service analysis request 9 ... Process interruption 10 ... Detailed analysis 11 ... Analysis result 12 ... Analysis Result judgment 13 ... On hit 14 ... On miss hit 15 ... Transfer node analysis / call processing 16 ... Call control right transfer 17 ... Terminal signal 18 ... Terminal signal 17 processing 19 ... Continue processing 20 ... Terminal signal 17 processing 21, 22 ... Individual processing according to the contents of the terminal signal 17

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 9, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Claims

[Correction method] Change

[Correction content]

[Claims]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiji Kishida 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Innovator Nobuhiro Okochi 1-12, Toranomon, Minato-ku, Tokyo No. Oki Electric Industry Co., Ltd. (72) Inventor Toshihiro Kai 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (1)

[Claims] 1. A service having a plurality of types of nodes, a transfer node accommodating a terminal and a high function node not accommodating the terminal and connected to the transfer node, and determining a service to be simultaneously provided to one terminal in a network. In a communication network in which the execution function is distributed to a plurality of nodes, when the service function arranged in the high function node is activated in response to a signal from the terminal, the service function is accommodated in the transmission node accommodating the terminal. Trigger judgment that detects only the possibility of providing
In a trigger analysis method in which the presence or absence of an actual service is determined and determined by a high function node when a trigger is determined to be possible, when a trigger is detected for a certain terminal After sending a service analysis request to the high-performance node, it transitions to the call control right transfer preparation state, interrupts the processing of other terminal signals, waits for the analysis result, and after receiving the analysis result, determines the service at the high-performance node. A trigger analysis method in a communication network, characterized in that when the service is undecided, the call control right transition preparation state is released and the processing of the transmission node is continued.