JP3001456B2 - Protocol-specific parameter absorption method in exchange - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exchange for implementing various additional services, and more particularly, to a protocol-specific parameter absorption system in the exchange.

[0002]

2. Description of the Related Art There is no concrete method for the conventional protocol specific parameter absorption method.
As described in Japanese Patent Application Laid-Open No. 549, the interface with the protocol control module as viewed from the subscriber / relay basic call control module is made common regardless of the protocol type.

FIG. 4 is a block diagram showing a configuration of a conventional example. Under the subscriber / relay basic call control module 2,
Various UNI / NNI protocol control modules 1 are provided. A virtual terminal protocol control module 4 is provided in the UNI / NNI protocol control module 1 or external to the module. FIG.
(A) shows that the virtual terminal protocol control module 4 is UN
FIG. 4B shows a case where the virtual terminal protocol control module 4 is externally connected to the UNI / NNI protocol control module 1. As described above, in the conventional example, the UNI / NNI protocol control module 1 viewed from the subscriber / relay basic call control module 2 is replaced by a call control primitive (1-1) which is a common interface.
The system was controlled by

[0004]

In the above-mentioned conventional example, the parameters on the call control primitive between the protocol control module and the basic call control module are as follows.
It was a method of defining parameters corresponding to protocol-specific parameters. Therefore, when a protocol-specific parameter that requires only relaying between protocols or a protocol-related parameter related to a service is added, it is necessary to add a corresponding parameter between the protocol control module and the basic call control module. There is a problem that it is necessary and the basic call control module also needs to add a parameter relay process.

SUMMARY OF THE INVENTION An object of the present invention is to provide a protocol-specific parameter absorption method which can be added to a protocol-specific parameter only with a protocol control module to improve the reliability, productivity and maintainability. To provide.

[0006]

In order to achieve the above object, a protocol specific control parameter according to the present invention comprises a UNI protocol control module for controlling various user network interfaces and an NNI protocol control module for controlling various inter-network interfaces. UNI with control module
An NNI protocol control module, a subscriber / relay basic call control module for controlling a subscriber basic call and a relay basic call, and an interface between the UNI / NNI protocol control module and the subscriber / relay basic call control module. The basic call control is performed by using parameters corresponding to the protocol-specific parameters as parameters on the call control primitive, and the basic call control is performed by a calling party basic call control for controlling a calling party's basic call; The calling party's basic call control and the called party's basic call control are both separated into UNI / NN.
The I protocol control module, the subscriber / relay basic call control module, the UNI / NNI protocol control module, and the subscriber / relay basic call control module are independently and externally connected to each other to provide various types of switching supplementary services. Protocol-specific parameter with a service module that performs
In the meter absorption system, between the UNI / NNI protocol control module and the subscriber / relay basic call control module, the subscriber / relay basic call control module of the calling side basic call control, and the subscriber / relay of the destination side basic call control. Various call control signals are transmitted / received to / from the relay basic call control module using primitive-type call control primitives, and parameters are added.
/ Relay basic call control module needs to be aware of the contents
No call control parameters, the originating basic call control and the terminating base
Between the UNI / NNI protocol control module for this call control
For parameters that require information transmission in the
Protocol used on the primitive-protocol information path
Parameters, including protocol-protocol information parameters.
Data is one parameter total length, one or more
Parameter code, length of one or more parameters
It is characterized by including the content of one or more parameters .

[0007]

[0008]

[0009]

[0010]

[0011]

[0012]

[0013]

[0014]

Still further, the call control parameter may be
Originating basic call control that the
On the UNI / NNI interface signal of the terminating side basic call control
Services used on existing call control primitives
If the service-protocol information parameter includes conditions such as receiving a specific called number instead of receiving a specific parameter , the service-protocol information parameter determines a service based on the specific called number,
It preferably includes a new service-protocol information parameter that informs subsequent stations after performing the required operations.

The service-protocol information parameters are one parameter total length, one or more parameter codes, one or more parameter lengths, one or more parameter contents, UNI / NN.
Preferably, the I-protocol control module includes one or a plurality of valid sections for determining valid information.

Furthermore, one or a plurality of valid sections are set by the UNI protocol control module of the originating basic call control for the forward call control signal, and the UNI / NNI protocol control module of the originating basic call control is set. It preferably includes a section from to the service module.

Still further, one or more effective sections are:
For the reverse call control signal, the UNI of the called side basic call control is used.
It is preferably set by the protocol control module and includes a section from the UNI / NNI protocol control module of the called side basic call control to the service module.

Further, one or a plurality of valid sections are provided by the service module for the reverse call control signal.
NI / NNI protocol control module is set to be aware of,
It is preferable to include a section up to the / NNI protocol control module.

Further, one or a plurality of valid sections are set by the service module in consideration of the UNI / NNI protocol control module with respect to the forward call control signal, and the service module sets the UN of the destination basic small control.
It preferably includes a section up to the I / NNI protocol control module.

Further, in a service module for simultaneously starting a plurality of services, a service
The editing process of the protocol information parameters is performed independently for each service, and the editing logic is that if the parameter code is the same, the information is overcoated, and if the parameter code is different, it is edited at the end. It is preferable to be able to cope with simultaneous activation of a plurality of services by adding the information.

The protocol-specific parameter absorbing method of the present invention is particularly applicable to a communication between a UNI / NNI protocol control module and a subscriber / relay basic call control module, an originating subscriber / relay basic call control module, and a called subscriber / relay basic call control module. The protocol-protocol information parameter and the service-protocol information parameter are defined on the call control primitive to and from the call control module, and the incoming / outgoing UNI / NNI is defined.
The protocol control module has means for cross-mapping the parameters of the call control signal on the UNI / NNI interface signal, and the subscriber / transit basic call control module passes the protocol-protocol information parameter and the service-protocol information parameter through. The service module has only means for relaying, and the service module has means for referring and setting service-protocol information parameters.

In the present invention, the protocol-protocol information parameter and the service-protocol information parameter are defined between the protocol control module and the basic call control module, so that only the protocol control module is used when adding a protocol-specific parameter. It is possible to respond, and reliability, productivity, and maintainability are improved.

Also, by separately defining protocol-protocol information and service-protocol information,
The service module can select only those parameters that the service module needs to be aware of, that is, those that exclude only those parameters that merely transmit information irrespective of the service between the protocols. Operability is better than definition of information only.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the protocol specific parameter absorption system of the present invention. The software configuration inside the switching system of this system includes a UNI (user network interface) / NNI (inter-network interface) protocol control module 1a, 1b.
And the subscriber / who controls the subscriber basic call and the relay basic call /
It consists of relay basic call control modules 2a and 2b and service modules 3a and 3b disposed above the subscriber / relay basic call control modules 2a and 2b, and is realized in a form of departure and arrival. The call processing is realized separately for the called side basic call control. That is, the originating basic call control is U
NI / NNI protocol control module 3a, subscriber /
Relay basic call control module 2a, service module 3
a, and the called-side basic call control includes a UNI / NNI protocol control module 3b, a subscriber / relay basic call control module 2b, and a service module 3b.

As for the interface, UNI / NN
The interfaces between the I protocol control modules 1a, 1b and the subscriber / relay basic call control modules 2a, 2b and between the originating subscriber / relay basic call control module 2a and the called subscriber / relay basic call control module 2b are , Call control primitive (1-1). UNI / N
The NI protocol control modules 1a and 1b are connected to the UNI /
The call control signal (1-2) on the NNI interface signal and the call control primitive (1-1) are mutually mapped. Originating / arriving subscriber / relay basic call control module 1a,
For parameters that require recognition by 1b, UNI / NN
The parameters of the call control primitive (1-1) are prepared corresponding to the parameters of the call control signal (1-2) on the I interface signal, and the parameters of the call control signal (1-2) and the call control primitive (1--1) are prepared. Mutual mapping is performed between the parameters of 1). At this time, parameters that do not need to be considered by the originating / arrival subscriber / relay basic call control modules 2a, 2b and parameters that require information transmission between the originating / arrival UNI / NNI protocol control modules 1a, 1b. With regard to (1), a protocol-protocol information parameter (1-3) (abbreviated as ppinf in the figure) is defined on the call control primitive (1-1), and a format for performing mutual mapping on this parameter is used. person / relay basic call control module 2a, 2b, of the parameter
Only the process of relaying without recognizing the contents is realized. Also,
Calling / Destination Subscriber / Relay Basic Call Control Modules 2a, 2b
Does not need to recognize the contents, but the origination / arrival UN which needs to be recognized by the service modules 3a and 3b disposed above the subscriber / relay basic call control modules 2a and 2b.
The call control signal (1−1) on the I / NNI interface signal
Regarding the parameter of 2), the call control primitive (1
-1) above the service-protocol information parameter (1-
4) Define the (abbreviated as spinf in the figure), and the format for mutual mapped to this parameter, originating / destination subscriber / relay basic call control module 2a, 2b, the relay not recognize the contents of the parameter Only the processing to be performed is realized.

As an example of the protocol-protocol information parameter (1-3), in a network within a specific carrier, a parameter unique to each switching system in the network is represented by U
The call control signal on the NI / NNI interface signal (1-
2) Define as the above parameters and transparently transfer in the network,
Parameters that need to be transmitted between end-to-end switching systems correspond to this. Since the code assignment and configuration of these parameters are realized by a unique specification in the network, the call control primitive (1-1) is generally absorbed by the protocol-protocol information parameter (1-3).

The service-protocol information parameter (1
As an example of -4), a specific parameter for activating a specific service is defined as a parameter on the call control signal (1-2) on the UNl / NNI interface signal, and the service module 3 receiving this parameter
a and 3b perform operations according to the contents of the parameters. In the case of IN service, etc., the exchange system is SS
P (Service Switching Point)
t) Operate as a system and service modules 3a,
3b, via SCP (Service Control)
1 Point). Further, when it is necessary to rewrite the content of this parameter according to the service activation state and send it to the subsequent station, the service modules 3a and 3b rewrite the content of the service-protocol information parameter (1-4). I do. If the condition for activating the service modules 3a and 3b is not reception of a specific parameter but reception of a specific destination number, the service modules 3a and 3b are activated.
In b, after a service is determined based on the received called number and necessary operations are performed, new information related to the service needs to be notified to a downstream station. Set the parameters (1-4).

FIG. 2 is a block diagram showing the configuration of an embodiment of the parameters of the present invention. The parameters include the above-described protocol-protocol information parameter (1-3) and service-protocol information parameter (1-4). Both parameters are in a format in which a plurality of parameter configurations on the protocol signal can be mounted together as they are. Specifically, it includes a parameter total length 21, a protocol parameter code 22, a protocol parameter length 23, and a protocol parameter content 24. The service-protocol information parameter (1-4) includes, in addition to the information included in the above-described protocol-protocol information parameter (1-3), a valid section 25 for each protocol parameter. as,
1) For the forward call control signal, the originating UNI protocol control module sets an effective section. That is, the originating UN
2) from the I / NNI protocol control module 1a to the service module 3a,
The destination UNI protocol control module sets a valid section. That is, from the destination UNI / NNI protocol control module 1b to the service module 3b, 3) the service modules 3a, 3b respond to the reverse call control signal by the originating / destination UNI / NNI protocol control module 1b.
The setting is made in consideration of a and 1b. That is, from the service module 3a to the originating UNI / NNI protocol control module 1a, 4) the service modules 3a, 3b are aware of the originating / terminating UNI / NNI protocol control modules 1a, 1b in response to the forward call control signal. Set.
That is, the destination UNI / NN is sent from the service module 3b.
There are four types up to the I protocol control module 1b.
By defining the valid section in this way, the UNI / NNI protocol control modules 1a and 1b for outgoing / arrival are defined.
Is used to determine valid information.

Next, the operation of the embodiment of the present invention will be described with reference to FIG.
This will be described in detail with reference to FIG.

FIG. 3 is a sequence diagram showing the operation of the embodiment of the present invention. First, in the originating UNI / NNI protocol control module 1a, when a call control signal (1-2) on a UNI / NNI interface signal is received, parameters to be mapped to the corresponding call control primitive (1-1) are defined. If not, the corresponding parameter is set to the protocol-protocol information parameter (1-3).
(Abbreviated as ppinf in the figure), and if the corresponding parameter is a parameter related to a service, a service-protocol information parameter (1-4)
(Abbreviated as spinf in the figure). The definition of the valid section of the service-protocol information parameter (1-4) corresponds to 1) of the valid section described above.
From the originating UNI / NNI protocol control module 1a to the service module 3a. Protocol-protocol information parameter (1-3) (ppinf in the figure)
Abbreviated) is the originating subscriber / relay basic call control module 2
a, via the called subscriber / relay basic call control module 2b, and relayed through to the called UNI / NNI protocol control module 1b. The service-protocol information parameter (1-4) is transmitted to the originating subscriber / relay basic call control module 2a or the destination subscriber / relay basic call control module 2b.
In the service modules 3a and 3b activated on the upper level, the contents are referred to only when the contents need to be referred, and when the contents of the service-protocol information parameters (1-4) need to be changed, the contents are changed. The service module 3b corresponding to the setting of the valid section described in 4) above.
To the destination UNI / NNI protocol control module 1b. Also, the service module 3b receives the destination UNI /
Via the NNI protocol control module 1b, a call control signal (1-
The parameter that needs to be newly added as the parameter of 2) is a new service-protocol information parameter (1-
The corresponding parameter is added in 4), and the setting of the valid section 25 is set from the service module 3b corresponding to 4) to the destination UNI / NNI protocol control module 1b. In the destination UNI / NNI protocol control module 1b, upon receiving the call control primitive (1-1), the service-protocol information parameter (1-4)
Is included, the valid section 25 is checked for each parameter corresponding to each protocol included in the service-protocol information parameter (1-4). If the information corresponding to the valid section is included, The information is directly mapped to the parameters of the call control signal (1-2) on the UNI / NNI interface signal. Services-
For parameters that are not included in the protocol information parameter (1-4), and parameters that are included but do not match valid sections, the corresponding parameters are mapped from the protocol-protocol information parameter (1-3).

The above operation is a process corresponding to a forward call control signal, but the same process is performed when a reverse call control signal is received. At this time, the relationship between the start and the end is exchanged.

Next, in the service module when a plurality of services are started simultaneously, the service-protocol information parameter (1-4) is edited independently for each service, and the editing logic is a parameter code. If the two are the same, the information is overcoated, and if the parameter code 22 is different, the edited information is added to the end of the service-protocol information parameter (1-4) to enable simultaneous activation of a plurality of services. Also correspond.

[0035]

According to the protocol-specific parameter control method of the present invention, parameters that can be relayed through between the incoming / outgoing UNI / NNI protocol control module are transmitted to the outgoing / incoming UNI.
/ NNI protocol control module and subscriber / relay basic call control module, and calling / subscriber / relay basic call control module and subscriber / relay basic call control module, subscriber / relay basic call control The module defines a plurality of parameters of the call control signal on the UNI / NNI interface signal in a format that can be set collectively as parameters whose contents do not need to be recognized.

Therefore, even if the parameter information unique to the UNI / NNI protocol is added, the change can be dealt with only by changing the corresponding protocol control module without changing the subscriber basic call control module or the relay basic call control module. It has the effect of being able to.

Also, parameters that can be relayed through between the incoming / outgoing UNI / NNI protocol control module and the incoming / outgoing UNI / NNI protocol control module and the subscriber /
The subscriber / relay basic call control module does not need to recognize its contents between the relay basic call control module and between the calling subscriber / relay basic call control module and the called subscriber / relay basic call control module, and A plurality of parameters of the call control signal on the UNI / NNI interface signal, including the effective section of the parameter, are defined as parameters that the service module needs to recognize, in a format that can be set collectively.

Therefore, even if the parameter information related to the service unique to the UNI / NNI protocol is added, the corresponding protocol control module and the relay basic call control module are not changed without changing the subscriber basic call control module or the relay basic call control module. This has the effect that it can be handled only by changing the service module.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing a configuration of an embodiment of parameters of the present invention.

FIG. 3 is a sequence diagram showing an operation of the embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a conventional example. (A)
FIG. 3B is a block diagram showing a case of a built-in type, and FIG.

[Explanation of symbols]

1, 1a, 1b UNI / NNI protocol control module 2, 2a, 2b Subscriber / relay basic call control module 3a, 3b Service module 4 Virtual terminal protocol control module 1-1 Call control primitive 1-2 Call control signal 1-3 Protocol-Protocol Information Parameter 1-4 Service-Protocol Information Parameter 21 Total Parameter Length 22 Parameter Code 23 Parameter Length 24 Parameter Contents 25 Effective Section

Claims (8)

(57) [Claims] 1. A UNI / NNI protocol control module having a UNI protocol control module for controlling various user network interfaces, and a NNI protocol control module for controlling various network interfaces,
A subscriber / relay basic call control module for controlling a subscriber basic call and a relay basic call, on a call control primitive at an interface between the UNI / NNI protocol control module and the subscriber / relay basic call control module. as parameters, the row basic call control using the parameters corresponding to the protocol-specific parameters
The basic call control is separated into calling basic call control for controlling a basic call of a calling subscriber and called basic call control for controlling a basic call of a called subscriber. Control and the terminating side basic call control, the UNI / NNI protocol control module, the subscriber / relay basic call control module, the UNI / NNI protocol control module, and the subscriber / relay basic call control module independently connected to an external to a service module for various exchange supplementary services, in a protocol-specific parameters absorption scheme and a the UNI / NNI protocol control module, said subscriber / relay base call to the A subscriber / relay basic call control module for the originating basic call control and a subscriber / relay basic call control for the destination basic call control Between the control module and receives various call control signal in the call control primitives Primitive format, the parameter, the subscriber / relay basic call control module
Call control parameters that do not require the
UNI / N of the originating side basic call control and the terminating side basic call control
Required for information transmission between NI protocol control modules.
For parameters, use on the call control primitive
A protocol-protocol information parameter, wherein the protocol-protocol information parameter is one
Parameter total length, one or more parameters
Code, one or the length of the plurality of parameters, one also
Is a protocol-specific parameter absorption method characterized by including the contents of multiple parameters . 2. The method according to claim 2, wherein the call control parameter is the service mode.
The calling side basic call control that the Joule needs to recognize;
UNI / NNI interface signal of the called side basic call control
Service used on the call control primitives on the
-If the service-protocol information parameter is such that the condition for activating the service module is not the reception of the specific parameter but the reception of a specific called number, a service of the service based on the specific called number is included. The protocol-specific parameter absorption scheme according to claim 1 , characterized in that it comprises a new service-protocol information parameter which, after making a decision and taking necessary action, informs a subsequent station. 3. The service-protocol information parameter includes one parameter total length, one or more parameter codes, one or more parameter lengths, one or more parameter contents, the UNI /
The protocol-specific parameter absorption method according to claim 2 , wherein the NNI protocol control module includes one or a plurality of valid sections for determining valid information. Wherein said one or more active interval, relative to the forward call control signals, set by the UNI protocol control module of the calling-side basic call control, the calling-side basic call control UNI / NNI The protocol-specific parameter absorption method according to claim 3 , wherein a section from a protocol control module to the service module is included. Wherein said one or more active interval, for backward call control signals, set by the UNI protocol control module of the called party basic call control, the called party basic call control UNI / NNI 5. The protocol-specific parameter absorption method according to claim 3 , wherein a section from a protocol control module to the service module is included. Wherein said one or more active interval, for backward call control signal, the UNI / NNI set aware of the protocol control module by the service module, the calling side from the service module The protocol-specific parameter absorption method according to any one of claims 3 to 5 , further comprising a section up to a UNI / NNI protocol control module for basic call control. 7. The one or more valid sections are set by the service module in consideration of the UNI / NNI protocol control module with respect to a forward call control signal, and are set from the service module to the destination side. Basic
The protocol-specific parameter absorption method according to any one of claims 3 to 6 , including a section up to a UNI / NNI protocol control module for call control. 8. In a service module for simultaneously activating a plurality of services, the service-protocol information parameter editing process is performed independently for each service, and the editing logic is the same as that of the parameter code. in the case of the overcoated information, if the code of the parameter are different, so as to add information edited to the end, characterized in that it corresponds to the simultaneous activation of multiple services, claim 3 7. The protocol-specific parameter absorption method according to any one of 7 .