KR100282646B1 - Timer resource management device and method for non-corresponding test message in signal connection control unit - Google Patents

Abstract

An object of the present invention is to provide an apparatus and method for efficiently managing a timer resource for an inactivity test in a signal connection controller (SCCP) using a number seven signaling method. The apparatus according to the present invention provides a timer for a transmission message. The first memory for managing resources, the second memory for managing timer resources for received messages, and if timer resource allocation is required for a new connection, the identification information of the signal connection controller corresponding to the first memory and the second memory is recorded. A timer setting unit which sets a timer, and when an interrupt of a predetermined period is applied, reads identification information of the signal connection control unit stored in the current pointer of the first memory and sends an IT message requesting that the IT message is sent to the corresponding connection path. The request processing unit, when an interrupt of a predetermined period is applied, the scene stored in the current pointer of the second memory Timer resource release request processing unit which reads the identification information of the connection controller to request the release of the corresponding timer resource, and identification information of the corresponding signal connection controller stored in the second memory every time a predetermined message is received through an arbitrary connection path. A signal receiving unit for resetting the timer value by moving the pointer to the current pointer, and a timer releasing unit for clearing the corresponding identification information stored in the first memory and the second memory when the connection release request or timer resource release request signal is applied. Therefore, the timer resource for the non-correspondence test can be operated without depending on the timer resource of the operating system.

Description

Timer resource operation device and method for non-corresponding test message in signal connection control part of No.7 signal method

The present invention relates to a Signal Connection Control Part (hereinafter referred to as SCCP) in the number seven (hereinafter referred to as No. 7) signaling method, and in particular, to an inactivity test (hereinafter referred to as IT) of SCCP. An apparatus and method for efficiently operating a timer resource (Time Resource) for a message).

No. The seven signal method is an inter-station signal method for transmitting signals corresponding to a plurality of lines by a high speed data transmission technique on a common signal line, and is largely divided into a basic part and a user part. The basic part consists of a message transfer part (abbreviated as MTP), the user part (telephone user part, abbreviated as TUP), data user part (abbreviated as DUP), and ISDN (Integrated Service). Digital Network Service, Comprehensive Digital Network) User part (weak ISUP), SCCP, Transaction Capability (Transaction Capability Application Part, TCAP). ISUP, SCCP and TCAP belonging to the user part are extensions corresponding to ISDN.

No. like this When a clock job (Job) is required when sending or receiving a message in a 7-signal manner, a timer of an operating system (hereinafter, referred to as OS) provided in the system (it may be an exchange or a base station controller). Resource was used. However, since the timer resources of the OS are limited, when the frequency of occurrence of a message requesting the timer resource allocation increases or the call receiving the timer resources for a long time increases, the timer resources of the OS may be exhausted. When the timer resource of the OS is exhausted, the call is disconnected or the call connection is not well established in the call setup phase.

Since the timer resource allocation is required to the OS even when the SCCP IT message is transmitted and received, when the timer resource of the OS is exhausted or insufficient, the IT message non-delivery situation is generated. If the IT message is not sent, the call disconnection or call connection is not well established at the call setting stage as described above.

In addition, when the frequency of use of the timer resources of the OS increases, the performance of the system may be degraded because the OS may not perform other tasks properly by performing timer management tasks.

The present invention has been made to solve the above-described problem, No. Timer resource management device and method for SCCP IT message that uses timer memory for inactivity test (IT) message in memory in Signaling Signal Connection part (weak SCCP) of 7 signaling method The purpose is to provide.

In order to achieve the above object, an apparatus according to the present invention is a timer resource operation apparatus for a non-corresponding test message of a signal connection controller of a number seven signaling method, and transmits a non-corresponding test message for at least one connected path. A first memory for storing identification information (SCCP ID) of the signal connection control unit for the connected path to manage timer resources; A second memory for storing identification information (SCCP ID) of the signal connection controller of the connected path to manage the reception timer resource of the non-corresponding test message for the connected path; a new connection is established and a timer resource allocation is required. A timer setting unit for recording identification information of the signal connection control unit of the new connection into the free areas of the current pointers of the first memory and the second memory, respectively; when the interrupt of the first predetermined period is applied, the current pointer of the first memory. A non-corresponding message sending request processing unit for reading identification information of all the signal connection control units stored in the terminal, and requesting transmission of the non-corresponding test message through all connection paths corresponding to the read-out identification information of the signal connection control unit; When a non-corresponding test message is sent to the corresponding connection path according to the request of the non-corresponding message sending request processing unit, and any message other than the non-corresponding test message is sent to the first predetermined connection path, A signal transmitter configured to reset the timer value for the transmission message of the first predetermined connection path by moving the identification information of the signal connection controller for the first predetermined connection path to the current pointer of the first memory; A timer releasing unit for releasing the timer by clearing identification information of the signal connection control unit for the second predetermined connection path stored in the second memory when the releasing of the connection is requested or the release of the timer resource is required; Timer for identification information of all signal connection control units stored in the current pointer of the second memory when the interrupt of is applied. A timer resource release request processing unit for sending a release release to a timer release unit; when a release signal for a second predetermined connection path is received, the timer release resource is sent to a timer release unit, and when a predetermined message is received through the third predetermined connection path. And a signal receiver for moving the identification information of the signal connection controller of the third predetermined connection path to be recorded in the current pointer of the second memory so as to reset the timer value for the received message of the third predetermined connection path. The third to third predetermined connection paths may include at least one connection path.

In order to achieve the above object, the method according to the present invention, when the timer resource allocation for at least one or more new connection is requested, managing the timer resource for the transmission message identification information of each signal connection control unit of the requested new connection; Recording each of the first memory and a second memory for managing timer resources for the received message; A first setting step of setting a current pointer of the first memory by incrementing the pointer of the first memory in the X-axis direction when an interrupt of the first predetermined period occurs; A first reading step of reading identification information of all signal connection controllers stored at a point where the current pointer is set, when the current pointer of the first memory is set; Transmitting a non-correspondence test message to a connection path corresponding to the identification information of the read signal connection controller; when an arbitrary message is received through at least one connection path among the connected paths, the non-corresponding test message is stored in the second memory. Clearing the identification information of the signal connection controller of the connection path from which an arbitrary message was received, recording the identification information of the signal connection controller of the connection path from which the arbitrary message was received to the current pointer of the second memory, and receiving the random message. A first reset step of resetting a timer value for a connection path; a second setting for setting a current pointer of a second memory by incrementing the pointer of the second memory in the X-axis direction by one when an interrupt of a second predetermined period occurs; step; A second reading step of reading all identification information of the signal connection controller stored in the current pointer when the current pointer of the second memory is set; Requesting release of a timer resource corresponding to the read identification information of the predetermined signal connection control unit when the identification information of the predetermined signal connection control unit is read in the second reading step; When the release of the predetermined timer resource is requested from the timer resource release request step or the release of the predetermined connection from the outside of the signal connection controller, the release stored in each of the first memory and the second memory is requested. And clearing identification information of the signal connection controller corresponding to the connection path.

1 is a block diagram of a timer resource operation apparatus for a non-corresponding test message in a signal access control unit according to the present invention;

2 is a flowchart illustrating a process of recording an SCCP ID according to a timer resource allocation request in a timer resource operating method according to the present invention;

3 is an exemplary diagram of an SCCP ID recorded in the first memory and the second memory of FIG. 1 by FIG. 2;

4 is a flowchart illustrating an operation of sending an IT message in a timer resource operating method according to the present invention;

FIG. 5 is an exemplary diagram of an SCCP ID read out from a first memory to send an IT message by FIG. 4.

6 is a flowchart illustrating an operation in which a transmission message exists through a connected path in a timer resource operating method according to the present invention;

7 is an exemplary view illustrating management of an SCCP ID stored in a first memory by FIG. 6;

8 is an operation flowchart for a timer resource release request in the timer resource operating method according to the present invention;

9 is a flowchart illustrating a timer releasing process in the timer resource operating method according to the present invention;

10 is a flowchart illustrating an operation of receiving a message through a connected path in the timer resource operating method according to the present invention.

<Description of the code | symbol about the principal part of drawing>

101: SCCP (Signal Connection Control Part) timer setting section

105: first memory 115: IT (Inactivity Test) message sending request processing unit 110: second memory 120: signal transmitter

125: timer resource release request processing unit 135: SCCP timer release unit

130: third memory 140: signal receiving unit

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of an apparatus according to the present invention, and includes a signal connection controller (SCP) for setting a timer for a corresponding connection according to a timer resource allocation request. A first memory 105 for managing timer resources Tias when sending an inactivity test (hereinafter abbreviated IT) message, a second memory for managing timer resources Tiar upon receiving an IT message (110), IT message sending request processing unit 115, No. including IT messages. A connection release request transmitted from another layer through a signal transmitter 120 for transmitting a signal, a timer resource release request processor 125 for processing a release request for an allocated timer resource, and a signal receiver 140 Alternatively, the SCCP timer release unit 135, the first memory 105, and the second device clear the timer resources of the first and second memories 105 and 110 by the release request sent from the timer resource release request processing unit 125. A third memory 130 for storing management information on timer resources stored in the memory 110, and No. including IT messages. It consists of a signal receiving unit 140 for receiving seven signals.

FIG. 2 is a flowchart illustrating an operation of recording an SCCP ID (hereinafter, referred to as ID) according to a timer resource allocation request in a timer resource operation method for an SCCP IT message according to the present invention. FIG. 1 is an exemplary diagram illustrating an SCCP ID recorded in the first memory 105 and the second memory 110 of FIG. 1, FIG. 4 is an operation flowchart for an IT message sending process in the method according to the present invention, and FIG. 5. 4 is an exemplary diagram of an SCCP ID read out from the first memory 105 to send an IT message by FIG. 4, and FIG. 6 is a case in which a message transmitted through a connected path exists in the method according to the present invention. 7 is an exemplary management diagram for the SCCP ID stored in the first memory by FIG. 6, FIG. 8 is an operational flowchart for a timer resource release request in the method according to the present invention, and FIG. invent 10 is a flowchart illustrating a timer releasing process in the method according to the present invention, and FIG. 10 is a flowchart illustrating a case in which a message received through a connected path exists in the method according to the present invention.

Next, the operation of the embodiment of the present invention will be described in detail with reference to the drawings shown in FIGS. 1 to 10.

The SCCP timer setting unit 101 receives the allocation request signal for the timer resource of the connection through the signal receiving unit 140 when the connection for any call is completed, and stores the SCCP ID of the connection in the first memory. The timer is set by writing to the current pointer of the 105 and the second memory 110. That is, as shown in FIG. 2, when the timer resource allocation request signal is received in step 201, the process proceeds to step 203, and a blank area on the current pointers of the first memory 105 and the second memory 110 is null. Search.

The empty area search is made in the Y axis direction with respect to the X axis. For example, when the current pointer is a point where the X axis is '0', the empty area is searched in the Y axis direction of the point where the X axis is '0'. When the free area is searched, the process proceeds to step 205 to sequentially record the SCCP ID of the connection in the Y-axis direction in the searched blank area. For example, the current pointers of the first memory 105 and the second memory 110 are each a point where the X axis is '0', and the number of requests for timer resource allocation is required when the points are all empty areas. In this case, as shown in FIG. 3, N SCCP IDs 1 to N are sequentially written in the Y-axis direction at the point where the X-axis of the first memory 105 and the second memory 110 is zero. do.

When the SCCP ID is recorded in the first memory 105 and the second memory 110, respectively, the SCCP timer setting unit 101 proceeds to step 207 to update the information of the third memory 130. That is, the data of the third memory 130 such that an index for tracking the SCCP ID currently recorded in the first memory 105 and the second memory 110 can be recorded in the third memory 130. Is updated and returned. The return may be made in step 201 to maintain a wait state for a new timer resource allocation request.

The IT message sending request processing unit 115 requests the IT message sending so that the IT message can be sent out through the connection path with reference to the SCCP ID recorded in the first memory 105 by the method described above.

That is, when an interrupt (Cycle_act) related to the IT message transmission timer resource Tis occurs in step 401 of FIG. 4, the IT message sending request processor 115 proceeds to step 403 to transfer the first memory 105. Compares the pointer with the maximum possible pointer for equality. Since the pointer is set on the basis of the X axis as mentioned in step 203 described above, the maximum pointer is the maximum value Xmax of the X axis defined in the first memory 105. Interrupts occur at regular intervals.

As a result of the comparison, the process proceeds to step 405 where the pointer is set to zero. Accordingly, the pointer of the first memory 105 is moved to the point where the X axis is zero. However, if the comparison is not the same, the process proceeds to step 407 to increase the pointer by one. Accordingly, the current pointer is set to a point moved by one point in the X-axis direction from the previous X-axis point.

After the pointer is set, the IT message sending request processor 115 proceeds to step 409 to read all the SCCP IDs recorded in the Y-axis direction of the pointer set in step 405 or 407. That is, as shown in Fig. 5, when the currently set pointer is the Xi point, M SCCP IDi (1) to (M) existing at the Xi point are read out. In step 411, the IT message transmission request signal is transmitted to the signal transmitter 120 so that the IT message is transmitted through the read path (or relay line) of the read SCCP ID.

When the IT message transmission request processor 115 requests the IT message transmission for the M SCCP ID connection paths described above, the IT message transmission unit 120 simultaneously transmits the IT message to the connection path, and the other No except the IT message. . 7 Sending processing for messages is also performed. In particular, when a message other than an IT message is transmitted through the connection path, the timer also resets the timer value of the connection path.

FIG. 6 is a flowchart illustrating a case where a message transmitted through the connection path exists in the signal transmitter 120. When an arbitrary message is transmitted from the signal transmitter 120 to the predetermined connection path in step 601, the signal transmitter 120 is transmitted. ) Proceeds to step 603 to detect the storage area information (hereinafter referred to as Index) of the first memory 105 with respect to the SCCP ID of the access path to which the current message is sent with reference to the third memory 130. do. If the corresponding index is detected, the process proceeds to step 605 to check whether the detected index and the current pointer of the first memory 105 are the same. As a result of the check, it is recognized that the currently sent message is an IT message, and the signal transmitter 120 is returned.

However, if it is determined that the detected index is not the same as the current pointer of the first memory 105, the process proceeds to step 607 to clear the SCCP ID stored in the corresponding index of the first memory 105, and step 609. Proceeds to to record the SCCP ID in the empty area of the current pointer. FIG. 7 illustrates a case in which one SCCP ID is recorded through steps 605 through 609.

As can be seen from FIG. 7, when the detected index is a designated position at the point where the X axis of the first memory 105 is '3' in the Y-axis direction and the current pointer is Xk. Search for an empty area in the Y-axis direction on the Xk axis, and record the corresponding SCCP ID in the (l + 1) th area when the (l + 1) th area is empty. By such a clearing operation and a writing operation, the timer value for the transmission message of the connection path is reset. This is because the IT message sending request processing unit 115 reads the point where the next SCCP ID is newly recorded through the connection path of the corresponding SCCP ID.

In operation 611, the corresponding index information stored in the third memory 130 is updated to the newly changed point and returned.

The timer resource release request processing unit 125 releases the timer resource by referring to the second memory 110 whenever an interrupt for checking the receipt of the IT message having a period different from that generated when the IT message is sent is generated. Require.

That is, as shown in FIG. 8, when an interrupt (Tiar Cycle_act) is generated to check whether the IT message is received in step 801, the process proceeds to step 803 where the designated pointer immediately before the second memory 110 becomes X. Compare with the maximum of the axis. As a result of the comparison, the process proceeds to step 805 to set the pointer to 0. If not, the process proceeds to step 807 to increase the pointer by one. Such pointer movement is performed whenever an interrupt is generated as in the IT message sending request processing unit 115.

When the pointer to the second memory 110 is set as described above, the timer resource release request processing unit 125 reads the SCCP ID of the position designated by the pointer. At this time, when the SCCP ID is read, it means that no message has been received through the access path after the IT message is sent through the access path. Therefore, the timer resource release request processing unit 125 proceeds to step 811 and requests the timer resource release for the SCCP ID read out by the SCCP timer resource release unit 135 and returns.

The SCCP timer resource release unit 135 is connected by a connection release request signal provided through the signal receiving unit 140 from a higher user unit or a lower portion or a timer resource release request signal requested from the timer resource release request processing unit 125. Release the timer resource of the path. That is, when the release of the timer resource for the predetermined access path is requested in step 901, the process proceeds to step 903 and the first and second memories 105 and 110 for the corresponding SCCP ID with reference to the third memory 130. Detects the index of. In operation 905, the SCCP IDs of the first memory 105 and the second memory 110 of the detected indexes are cleared and returned. At this time, the timer resource release request has the same meaning as the corresponding disconnect request.

Signal receiving unit 140 is a No. including an IT message that can be received through the connection path. It changes the recording condition of the second memory 110 according to whether the 7-signal message is received and resets the timer value of the corresponding connection path. That is, if there is any received message through the predetermined access path in step 1001 of FIG. 10, the process proceeds to step 1003 and refers to the SCCP ID of the access path in which the current message is received with reference to the third memory 130. To detect the index of. In step 1005, the SCCP ID stored in the index of the detected second memory 110 is cleared. In step 1007, the empty area of the current pointer of the second memory 110 is searched for the corresponding SCCP. Record the ID. Accordingly, the timer for the received message of the connection path is reset. In operation 1009, the contents of the third memory 1009 are updated and returned.

As described above, the present invention is No. 7 By providing a device and method for operating a timer resource related to a non-corresponding test message using a memory without using an OS in a signaling method of a signaling method, the timer resource of the OS is depleted due to frequently generated IT messages. The phenomenon can be prevented, and even when a long-term call or a large number of IT messages are generated, the IT message can be smoothly sent to prevent the disconnection or the poor connection.

Claims (6)

In the timer resource operation apparatus for the non-corresponding test message of the signal connection control unit of the number seven signal system, A first memory (105) for storing identification information (SCCP ID) of a signal connection controller for the connected path, in order to manage a transmission timer resource of the non-compliant test message for at least one connected path; A second memory (110) for storing identification information (SCCP ID) of a signal connection control unit for the connected path in order to manage a reception timer resource of the non-corresponding test message for the connected path; When a new connection is established and a timer resource allocation is requested, a timer setting unit for recording identification information of the signal connection control unit of the new connection in the empty areas of the current pointers of the first memory 105 and the second memory 110, respectively. 101; When the interrupt of the first predetermined period is applied, all the identification information of the signal connection control unit stored in the current pointer of the first memory 105 is read out, and all connection paths corresponding to the identification information of the read signal connection control unit are read. A non-compliant message sending request processor 115 for requesting the transmission of the non-compliant test message through the controller; When the non-corresponding test message is sent to the corresponding connection path according to the request of the non-corresponding message sending request processing unit 115, and any message other than the non-corresponding test message is sent to the first predetermined access path. The identification information of the signal connection control unit for the first predetermined connection path stored in the first memory 105 is moved to the current pointer of the first memory 105 to transmit a message to the first predetermined connection path. A signal transmitter 120 for resetting a timer value for the timer; When a connection release or timer resource release for the second predetermined connection path is requested, the timer release is performed by clearing the identification information of the signal connection control unit for the second predetermined connection path stored in the second memory to release the timer. Part 135; When the interrupt of the second predetermined period is applied, the timer for sending the timer resource release request for the identification information of all the signal connection control unit stored in the current pointer of the second memory 110 to the timer release unit 135 A resource release request processor 125; When the disconnection signal for the second predetermined connection path is received, the signal is sent to the timer releasing unit 135, and when a predetermined message is received through the third predetermined connection path, And a signal receiving unit 140 which moves to record the identification information of the signal connection control unit of the third predetermined connection path in the current pointer so as to reset the timer value for the received message of the third predetermined connection path. The apparatus for operating a resource for a non-corresponding test message in the signal connection controller of the number seven signal method, characterized in that the first to third predetermined connection paths comprise at least one connection path. The apparatus of claim 1, wherein the timer resource operating apparatus further comprises a third memory 130 configured to store information related to identification information stored in the first memory 105 and the second memory 110. The corresponding test message transmission request processor 115, the signal transmitter 120, the timer resource release request processor 125, the timer release unit 135, and the signal receiver 140 are used to transmit the first memory 105 and the second memory ( Timer resource operation apparatus for the non-corresponding test message in the signal connection control unit of the number seven signal method, characterized in that the reference to the search for the identification information stored in the signal connection control unit (110). The method of claim 2, wherein the movement of identification information of the signal connection controller performed by the signal transmitter 120 and the signal receiver 140 is detected with reference to the third memory 130. The identification information of the number seven signal system is characterized in that the identification information of the signal connection control unit stored in the position designated by the index of the information is cleared, and the identification information of the signal connection control unit cleared in the blank area of the current pointer is recorded. A timer resource operation device for a non-corresponding test message in the signal connection controller. 2. The method of claim 1, wherein the non-compliant message sending request processing unit 115 sets a current pointer of the first memory 105 whenever an interrupt of the first predetermined period is generated, and sets the timer resource release request processing unit ( 125 sets a current pointer of the second memory 110 whenever an interrupt of the second predetermined period is generated, and the current pointer is increased by 1 in the X-axis direction every time the interrupt is generated. And the current pointer is set to '0' when the previous pointer is set to a maximum value defined in the X-axis direction. In the timer resource operation method for the non-corresponding test message of the signal connection control unit of the number seven signal system, When the timer resource allocation for at least one new connection is requested, the first memory managing the timer resource for the transmission message and the timer resource for the reception message are managed by the identification information of each signaling connection controller of the requested new connection. Writing each to a second memory; A first setting step of setting a current pointer of the first memory by incrementing the pointer of the first memory in the X-axis direction when an interrupt of the first predetermined period occurs; A first reading step of reading identification information of all signal connection controllers stored at a point where the current pointer is set, when a current pointer of the first memory is set; Transmitting the non-compliant test message through a connection path corresponding to the identification information of the read signal connection controller; When any message is received in at least one connection path of the connected paths, the identification information of the signal connection control unit of the connection path in which the arbitrary message previously stored in the second memory is received is cleared, and the first message is cleared. A first reset step of recording identification information of the signal connection controller of the connection path in which the arbitrary message is received in a current pointer of the memory to reset the timer value for the connection path in which the arbitrary message is received; A second setting step of setting a current pointer of the second memory by incrementing the pointer of the second memory in the X-axis direction when an interrupt of the second predetermined period occurs; A second reading step of reading all identification information of the signal connection controller stored in the current pointer when the current pointer of the second memory is set; Requesting release of a timer resource corresponding to the read identification information of the predetermined signal access control unit when the identification information of the predetermined signal access control unit is read in the second reading step; When the release of the predetermined timer resource is requested from the timer resource release request step or the release of the predetermined connection from the outside of the signal connection control unit is requested, each of the first and second memories is stored in the first memory. And clearing the identification information of the signal connection controller corresponding to the connection path for which the release is requested. . The method of claim 5, wherein the timer resource operating method stores the identification information of the signal access control unit of the access path through which the arbitrary message is transmitted when an arbitrary message is transmitted through at least one access path among the connected paths. If the existing location in the first memory and the current pointer of the first memory do not coincide, the identification information of the signal connection control unit stored in the existing location is cleared, and the signal connection control unit is identified in the free area of the current pointer. And a second reset step of recording the information and resetting the timer value for the connection path through which the arbitrary message is transmitted.