JP6158488B2 - Base station apparatus, program, and abnormal resource detection method - Google Patents

Description

  The present invention relates to a base station device, a program, and an abnormal resource detection method, and more particularly, to a base station device, a program, and an abnormal resource detection method using queuing processing.

  A general base station apparatus may use a technology that outputs a predetermined message or data via a resource for communication, and detects a resource abnormality depending on whether or not a response is returned within a predetermined time. Are known. A technique for detecting this resource abnormality is disclosed in, for example, Patent Document 1 below.

  The wireless base station of Patent Document 1 includes maintenance monitoring means, timer means, transmission path signal switching means, and loopback control means. The maintenance monitoring means outputs test data. The timer means measures a certain time when the test data is output. The transmission line signal switching means performs transmission / reception control of communication data. When receiving the test data, the loopback control means converts the test data into loopback data and outputs it to the transmission line signal switching means. The wireless base station of Patent Document 1 operates as follows.

  First, the maintenance monitoring means outputs test data to the transmission line signal switching means. Next, the timer means starts measuring for a certain time when the maintenance monitoring means outputs the test data. The transmission line signal switching means sends the test data from the maintenance monitoring means to the loopback control means. When receiving the test data, the loopback control means converts the test data into loopback data and outputs it to the maintenance monitoring means via the transmission line signal switching means. The maintenance monitoring unit detects that an abnormality has occurred in the transmission line signal switching unit when the response to the return data, that is, the output test data, has not been received within a predetermined time measured by the timer unit.

  With the above-described configuration and operation, the radio base station disclosed in Patent Document 1 can detect an abnormality in a transmission path signal switching unit, that is, a resource that performs communication.

  However, the wireless base station disclosed in Patent Document 1 returns the data output via the resource within the base station, and does not actually output the data to the opposite device and confirm the response from the opposite device. That is, the wireless base station of Patent Document 1 does not actually confirm whether or not the resource can communicate with the opposite device. For this reason, the radio base station of Patent Document 1 cannot always detect a resource that cannot communicate with the opposite device (hereinafter referred to as “abnormal resource”). For example, the wireless base station of Patent Literature 1 does not always detect an abnormal resource that is floating in resources. An abnormal resource that is floating in a resource is a resource that is trying to communicate with the opposite device even though the resource is released on the opposite device side. An abnormal resource that is floating in resources cannot be communicated because the resource on the opposite device side is released, but the resource itself is normal, so the radio base station of Patent Document 1 cannot be detected as an abnormal resource.

  As a means for solving this problem, a general base station apparatus determines whether or not a response to a predetermined call control message actually output to the opposite apparatus via a resource is returned from the opposite apparatus within a predetermined time. Thus, it is known to use a technique for detecting abnormal resources. The predetermined call control message is, for example, UE Capability Enquiry defined in 3GPP (Third Generation Partnership Project). The response is UE Capability Information.

JP 2008-289062 A

  However, the base station apparatus using the above-described technology for detecting an abnormal resource has a problem that the processing amount for detecting the abnormal resource becomes large and its own processing capability is greatly impaired. The reason will be described below. Hereinafter, a predetermined call control message in which a response is returned from the opposite apparatus will be referred to as an “expected message”.

  First, a base station device using the above-described technology for detecting abnormal resources (hereinafter referred to as “abnormal resource detection base station”) outputs an expectation message and then measures whether the response is returned within a predetermined time. To start the timer. Then, the abnormal resource detection base station executes a system call having a relatively large processing amount in order to start the timer. On the other hand, the abnormal resource detection base station performs call control in the same manner as a general base station. When the amount of calls increases, the abnormal resource detection base station also increases the number of times that call control is performed, and a large amount of expected messages, which are messages for call control, are output accordingly. As a result, the abnormal resource detection base station repeatedly starts the timer, that is, executes a system call with a relatively large processing amount many times, and the processing amount for detecting the abnormal resource becomes large. When the amount of processing for detecting an abnormal resource increases, the abnormal resource detection base station also increases the processing load on itself, and the processing capability is greatly impaired.

  An object of this invention is to provide the base station apparatus, program, and abnormal resource detection method which solve the said subject.

  In order to achieve the above object, a base station apparatus of the present invention includes a resource for communicating with an opposing apparatus, and transmits a response message to a predetermined first message transmitted to the opposing apparatus via the resource. A base station device that receives the response message from the opposite device and stores the response message in a memory, creates a second message, and stores the second message in the memory; and the first processing unit From the time the message is transmitted until the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and the period other than the processing prohibition period A message analysis processing unit for processing the response message and the second message in the order stored in the memory, The message processing unit is configured so that the second message is not processed in the memory after a predetermined time including a time during which the message analysis processing unit can normally process the second message has elapsed. If it remains, the resource is detected.

  In order to achieve the above object, a program according to the present invention comprises a resource for communicating with an opposing device, and sends a response message to a predetermined first message transmitted to the opposing device via the resource. A program for controlling a device that receives from a device and stores the response message in a memory, comprising: an audit processing step of creating a second message and storing the second message in the memory; From the time the message is transmitted until the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and the period other than the processing prohibition period A message analysis processing step of processing the response message and the second message in the order stored in the memory; The audit processing step includes processing the second message in the memory after a predetermined time including a time during which the message analysis processing step can normally process the second message has elapsed. If it remains, the resource is detected.

  In order to achieve the above object, an abnormal resource detection method of the present invention includes a resource for communicating with an opposing function unit, and a predetermined first message transmitted to the opposing function unit via the resource. An abnormal resource detection method for detecting an abnormality in the resource of a functional unit that receives a response message from the opposing functional unit and stores the response message in a memory, creating a second message, and generating the second message Audit processing means for storing the response message stored in the memory and the response message stored in the memory during the period from when the first message is transmitted until the response message is received. The message is not processed, and the response message and the second message are stored in the order stored in the memory during a period other than the processing prohibition period. Message analysis processing means for processing a message, and the audit processing means is configured so that the message analysis processing unit normally passes a predetermined time including a time during which the second message can be processed. If the second message remains unprocessed in the memory, the resource is detected.

  According to the present invention, the base station apparatus can reduce the processing amount for detecting the abnormal resource, and as a result, the processing capability for detecting the abnormal resource can be prevented from greatly impairing its own processing capability. it can.

It is a figure which shows the structural example of the base station apparatus (except an audit process part) in the 1st Embodiment of this invention. It is a figure which shows the structural example of the base station apparatus (an audit process part is included) in the 1st Embodiment of this invention. It is a sequence diagram which shows operation | movement of the base station apparatus 10 in the 1st Embodiment of this invention. It is a sequence diagram which shows operation | movement of the base station apparatus 10 in the 1st Embodiment of this invention. It is a sequence diagram which shows operation | movement of the base station apparatus 10 in the 1st Embodiment of this invention. 10 is a list of processing methods determined by the state transition processing unit 140 when the message type is a signal indicating a response message or a numerical value. It is a list of processing methods determined by the state transition processing unit 140 when the message type is a signal or a numerical value indicating an audit message. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement (operation | movement when an abnormal resource exists) of the base station apparatus 10 in the 1st Embodiment of this invention. It is a figure which shows the structural example of the apparatus in the 2nd Embodiment of this invention.

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

[First Embodiment]
[Description of configuration]
FIG. 1 is a diagram illustrating a configuration example of a base station apparatus (excluding an audit processing unit) according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating a configuration example of a base station apparatus (including an audit processing unit) according to the first embodiment of the present invention.

(1) Configuration of Base Station Device in First Embodiment First, as shown in FIG. 1, the base station device 10 in the first embodiment includes a message receiving unit 100, a message queue 110, a message An analysis processing unit 120 and a resource management unit 130 are included. Base station apparatus 10 in the first embodiment further includes a state transition processing unit 140, a queuing processing unit 150, and a timer management unit 160. Furthermore, as shown in FIG. 2, the base station apparatus 10 in the first embodiment also includes an audit processing unit 170. Although not shown, the base station device 10 includes a plurality of resources for communicating with other nodes 20. The other node 20 may be a mobile station (hereinafter referred to as “UE”) or MME (Mobility Management Entity), or may be another base station device that communicates with the base station device 50.

  The resource management unit 130 is connected to the message analysis processing unit 120 and the state transition processing unit 140, and the message analysis processing unit 120 is connected to the state transition processing unit 140, the queuing processing unit 150, and the message queue 110. . The state transition processing unit 140 is connected to the queuing processing unit 150. Further, the message receiving unit 100 is connected to the message queue 110 and the other node 20. The audit processing unit 170 is connected to the message queue 110, the resource management unit 130, the queuing processing unit 150, and the timer management unit 160. Note that the queuing processing unit 150 is connected to a memory such as a RAM (Random Access Memory) in the base station apparatus 10. Although not shown, this memory is also connected to the message analysis processing unit 120.

  Here, the message analysis processing unit 120, the resource management unit 130, the state transition processing unit 140, the queuing processing unit 150, and the audit processing unit 170 use general software for controlling the base station apparatus. Can be realized. Further, the message queue 110 can be realized using a memory such as a RAM (Random Access Memory). Furthermore, the message receiving unit 100 can be realized using an electronic circuit, an FPGA (Field-Programmable Gate Array), and a DSP (Digital Signal Processor). The timer management unit 160 can be realized by using general middleware that controls the base station apparatus. Each part other than the message queue 110 may be realized by an electronic circuit.

(2) Functions of Functional Units of Base Station Device 10 in First Embodiment The base station device 10 performs predetermined call control to other nodes 20 via resources in the same manner as general base station devices. Is sent, and a response message to the message is received from the other node 20.

  On the premise that the base station apparatus 10 has the above-described functions, the functions of the respective functional units of the base station apparatus 10 will be described below. The predetermined call control message is set in the base station device 50 by the user of the base station device 50 of the present embodiment. The predetermined call control message may be, for example, UE Capability Enquiry or Path Switch Request defined in 3GPP (Third Generation Partnership Project). In the case of UE Capability Enquiry, the response message is UE Capability Information. In the case of Path Switch Request, the response message is Path Switch Request Acknowledge.

  First, the message receiving unit 100 stores the response message received from the other node 20 in the message queue 110.

  The message queue 110 is a memory that stores messages.

  The message analysis processing unit 120 acquires a message from the message queue 110 at a predetermined timing, and analyzes what message the acquired message is and which message is transmitted from which UE by a known means. As a result of this analysis, it can be seen from which UE the message is transmitted. The UE found here is hereinafter referred to as “the UE”. The predetermined timing described above is set in the message analysis processing unit 120 by the user of the base station apparatus 10 of the present embodiment. When the message analysis processing unit 120 is realized by software, the predetermined timing is defined in the software of the message analysis processing unit 120 by the user of the base station apparatus 10 of the present embodiment. Further, as a result of the above analysis, the message analysis processing unit 120 knows what kind of message the acquired message is, and therefore holds a signal or a numerical value indicating the type of the acquired message. Furthermore, when the acquired message is a predetermined response message or an audit message as a result of the above analysis, the message analysis processing unit 120 requests acquisition of the state of the resource communicating with the UE. Outputs a signal or numerical value. The predetermined response message described above is set in the message analysis processing unit 120 by the user of the base station device 10 of the present embodiment. When the message analysis processing unit 120 is realized by software, the predetermined response message described above is defined in the software of the message analysis processing unit 120 by the user of the base station apparatus 10 of the present embodiment. The audit message is a test message generated by the audit processing unit 170 for each UE with which the resource is communicating. The audit message may be a dummy message of the response message. Here, the signal or numerical value for requesting the resource state acquisition described above is hereinafter referred to as a “state acquisition request”. When the status of the resource, that is, the call status is input as a result of outputting the status acquisition request, the message analysis processing unit 120 inputs a signal or numerical value (hereinafter referred to as “message type”) indicating the type of the acquired message. Output the call state. Further, when the acquired message processing method is input as a result of outputting the call state and the message type, the message analysis processing unit 120 processes the message acquired by the processing method. Specifically, when the processing method is a predetermined process (hereinafter referred to as “message processing”), the message analysis processing unit 120 determines that it is not between the time when the message is transmitted and the time when the response message is received. Then, predetermined processing is performed on the acquired message. The content of the predetermined processing is defined in software that causes the message analysis processing unit 120 to be operated by the user of the base station apparatus 10 of the present embodiment. When the processing method is queuing, the message analysis processing unit 120 outputs the acquired message and a signal or a numerical value (hereinafter referred to as “the UE identifier”) corresponding to the UE. Further, the message analysis processing unit 120 acquires a message corresponding to the UE name from the memory connected to the queuing processing unit 150 when a signal indicating that the state has changed to the stable state or a numerical value and the UE name are input. To do. The signal indicating the transition to the stable state, the numerical value, and the UE name will be described in the following description of the function of the resource management unit 130.

  The resource management unit 130 manages the state of each resource provided in the base station apparatus 10 using a known function. Specifically, the resource management unit 130 knows which UE is communicating with each resource by a known technique. Further, the resource management unit 130 grasps whether each resource is in a response message waiting state or a stable state, that is, a call state. The response message waiting state is a state in which the resource transmits a message to the UE and waits for the response message. The stable state is a state where the next processing can be performed. The stable state may be a state in which the resource receives the response message, the processing at that time is completed, and the next processing can be performed. When the state acquisition request (described above in the description of the message analysis processing unit 120) is input, the resource management unit 130 outputs the call state of the resource communicating with the UE. Further, when there is a resource that has transitioned to a stable state, the resource management unit 130 has transitioned to a signal or numerical value (hereinafter referred to as “UE name”) indicating a UE that is communicating with the resource, and to the stable state. A signal or numerical value indicating that is output. In addition, when a signal or a numerical value is input to request that the resource management unit 130 communicate with the UE and which UE the resource is communicating with, or a numerical value, the resource management unit 130 returns a communication UE status response. Output. The communication UE status response is a signal or a numerical value that informs which resource is communicating with the UE and which UE the resource is communicating with.

  When the call state and message type are input, the state transition processing unit 140 determines a message processing method. The determination method will be described in detail in the operation explanation column described later.

  When the UE identifier and the message (described above in the description of the message analysis processing unit 120) are input, the queuing processing unit 150 queues the message in a memory connected to itself for each UE identifier.

  When a signal for requesting timer activation or a numerical value is input, the timer management unit 160 executes a system call to activate the timer. Further, when the timer expires, the timer management unit 160 outputs a signal or a numerical value indicating that the timer has expired.

  At a predetermined timing, the audit processing unit 170 generates an audit message for each UE with which the resource is communicating, and stores the audit message in the message queue 110. In addition, when the audit processing unit 170 stores the audit message in the message queue 110, the audit processing unit 170 requests a signal to notify the UE that is communicating with the UE and which UE the resource is communicating with, or a numerical value ( (Hereinafter referred to as “communication UE status request”). When the communication UE status response is input after outputting the communication UE status request, the audit processing unit 170 recognizes the resource communicating with the UE and which UE the resource is communicating with. . Further, when the audit processing unit 170 stores the audit message in the message queue 110, the audit processing unit 170 outputs a signal or a numerical value for requesting activation of the timer. When a signal indicating that the timer has expired or a numerical value is input, the audit processing unit 170 checks whether there is a memory in which an audit message remains. Here, the memory is a memory connected to the queuing processing unit 150. If there is a memory in which an audit message remains, the audit processing unit 170 knows which UE's message is stored, and the resource that is communicating with that UE cannot communicate normally. Detect as a resource. In addition, the audit processing unit 170 releases the detected abnormal resource.

[Description of operation]
3A to 3C are sequence diagrams showing operations of the base station apparatus 10 according to the first embodiment of the present invention. The operation of the base station apparatus 10 will be described with reference to FIGS. First, operations of the message analysis processing unit 120, the resource management unit 130, the state transition processing unit 140, and the queuing processing unit 150, that is, operations for processing various messages will be described. Then, operations of the timer management unit 160 and the audit processing unit 170, that is, operations for detecting abnormal resources will be described. Note that the base station device 10 has a function of transmitting a message to the other node 20 via the resource and receiving a response message from the other node 20. Therefore, the description will be made on the assumption that the message queue 110 stores the response message received by the message receiving unit 100.

(1) Operation of base station apparatus 10 (operation for processing various messages)
First, as shown in FIG. 3A, the message analysis processing unit 120 of the base station device 10 acquires a message stored in the message queue 110 at a predetermined timing (S100).

  Next, the message analysis processing unit 120 analyzes with a known means what kind of message the acquired message is and which message is transmitted from which UE (S101).

  Here, as a result of the analysis of S101, it can be seen from which UE the message is transmitted. The UE found here is hereinafter referred to as “the UE”. Further, as a result of the analysis in S101, the message analysis processing unit 120 knows what kind of message the acquired message is, and therefore holds a signal indicating the type of the acquired message or a numerical value, that is, a message type. Since the message analysis processing unit 120 currently acquires the response message stored in the message queue 110, the retained message type is a signal or a numerical value indicating the response message. Furthermore, the message analysis processing unit 120 also holds a signal or numerical value corresponding to the UE, that is, the UE identifier. The message analysis processing unit 120 holds the message type and the UE identifier while performing the following S102 to S107.

  Next, when the acquired message is a predetermined response message or an audit message, the message analysis processing unit 120 manages the status acquisition request in order to acquire the status of the resource communicating with the UE. The data is output to the unit 130 (S102).

  Next, when the status acquisition request from the message analysis processing unit 120 is input, the resource management unit 130 notifies the message analysis processing unit 120 of the call status of the resource communicating with the UE (S103).

  Next, when the call state is input, the message analysis processing unit 120 outputs the input call state and message type to the state transition processing unit 140 (S104).

  Next, when the call state and the message type are input, the state transition processing unit 140 determines a message processing method and outputs the determined processing method to the message analysis processing unit 120 (S105).

  Here, FIG. 4 is a list of processing methods determined by the state transition processing unit 140 when the message type is a signal indicating a response message or a numerical value. As shown in FIG. 4, when the message type is a signal or a numerical value indicating a response message and the call state is a predetermined state 1, the state transition processing unit 140 performs a predetermined process on the message as a processing method. Processing, that is, message processing is determined. Here, the predetermined state 1 is a stable state. Further, as illustrated in FIG. 4, the state transition processing unit 140 determines to queue a message in the memory as a processing method when the call state is the predetermined state 2. Here, the predetermined state 2 is a response message waiting state. The predetermined states 1 and 2 are set in the state transition processing unit 140 by the user of the base station device 10 of the present embodiment. When the state transition processing unit 140 is realized by software, the predetermined states 1 and 2 are defined in the software of the state transition processing unit 140 by the user of the base station apparatus 10 of the present embodiment.

  FIG. 5 is a list of processing methods determined by the state transition processing unit 140 when the message type is a signal or a numerical value indicating an audit message. As illustrated in FIG. 5, the state transition processing unit 140 determines to perform message processing as a processing method when the message type is a signal or a numerical value indicating an audit message and the call state is stable. . In addition, as illustrated in FIG. 5, the state transition processing unit 140 determines to queue a message in the memory as a processing method when the call state is a state other than the stable state. The state other than the stable state may be a response message waiting state. Note that the resource has already received the response message when the state transition processing unit 140 processes the response message. Therefore, FIGS. 4 and 5 also indicate that the resource is transitioning to a stable state when performing message processing. It also describes that if the resource is in a message waiting state, the state transition processing unit 140 remains in a message waiting state (state maintenance) as long as there is no response message no matter what to do.

  Next, when the acquired message processing method is input from the state transition processing unit 140, the message analysis processing unit 120 executes the processing method for the acquired message (S106).

  Specifically, when the input processing method is message processing, the message analysis processing unit 120 determines that it is not between the time when the message is transmitted and the time when the response message is received, and the acquired message is On the other hand, predetermined processing is performed. In addition, when the input processing method is queuing, the message analysis processing unit 120 outputs the acquired message and the UE identifier to the queuing processing unit 150.

  Next, when the message and the UE identifier are input from the message analysis processing unit 120, the queuing processing unit 150 queues the input message for each UE identifier in a memory included in the queuing processing unit 150 (S107).

  If there are a plurality of messages acquired in S101 described above, the processing of S101 to S107 is performed for each message. Further, the messages queued in the queuing processing unit 150 are processed as follows after the above-described S101 to S107 are performed on all acquired messages.

  First, as shown in FIG. 3B, when there is a resource whose call state is in a stable state, the resource management unit 130 is a signal indicating that the UE name is communicating with the resource and that the state has changed to the stable state Alternatively, the numerical value is output to the message analysis processing unit 120 (S108).

  Next, when the message analysis processing unit 120 receives the UE name and a signal indicating that the transition to the stable state or a numerical value is received from the resource management unit 130, the message analysis processing unit 120 acquires the message related to the UE name from the memory of the queuing processing unit 150. (S109).

  Next, the message analysis processing unit 120 performs the processing of S101 to S106 described above for each message acquired in S109 together with the resource management unit 130 and the state transition processing unit 140, and performs message processing on the acquired message. Implement (S110).

  Thereafter, the message analysis processing unit 120 repeatedly executes the process of S100 described above at a predetermined timing. As a result, the above-described processes of S100 to S110 are repeatedly performed.

(2) Operation of base station apparatus 10 (operation for detecting abnormal resources)
Next, an operation for creating an audit message and detecting an abnormal resource will be described with reference to FIGS.

  First, as shown in FIG. 3B, the audit processing unit 170 generates an audit message for each UE with which the resource is communicating, and stores the audit message in the message queue 110 (S200).

  Note that the audit processing unit 170 performs the following processing in order to recognize the UE with which the resource is communicating in the processing of S200.

  First, the audit processing unit 170 outputs a communication UE status request to the resource management unit 130. Next, when a communication UE status request is input, the resource management unit 130 outputs a communication UE status response to the audit processing unit 170. When a communication UE status response is input from the resource management unit 130, the audit processing unit 170 recognizes a resource communicating with the UE and at the same time the UE is communicating with the resource (hereinafter “in communication”). UE ”).

  Further, when creating the audit message in S200 described above, the audit processing unit 170 includes an identifier corresponding to each UE in communication at a predetermined position of the audit message so that the audit message of which UE is known. Further, the audit processing unit 170 includes an identifier indicating the audit message at a predetermined position so that the message can be recognized as an audit message.

  Next, when the audit processing unit 170 outputs an audit message to the message queue 110, in order to measure the passage of a predetermined time, a signal or a numerical value (hereinafter referred to as “timer start request”) for requesting start of a timer is measured. The data is output to the timer management unit 160 (S201).

  When the timer activation request is input, the timer management unit 160 executes a system call and activates the timer (S202).

  In addition, when starting the timer, the timer management unit 160 sets the time when the timer expires to a predetermined time including the time when the processes of S100 to S110 are executed. This is because the audit message is processed by the processes of S100 to S110 described above. The predetermined time is set in the timer management unit 160 in advance by the user of the base station apparatus 10 of the present embodiment. The user of the base station apparatus 10 according to the present embodiment may normally measure in advance the maximum time for the base station apparatus 10 to execute the processes of S100 to S110, and set the time sufficiently including the maximum time as the predetermined time. .

  Next, when the timer expires, the timer management unit 160 outputs a signal indicating that the timer has expired or a numerical value to the audit processing unit 170 (S203).

  Here, if the resource is normal, the audit message is processed without any problem in the above-described S100 to S110. As a result, no audit message remains in the memory of the queuing processing unit 150. However, if the resource is abnormal and the response message cannot be received, the message continues to be queued in the memory of the queuing processing unit 150 as a result of the processing of S100 to S110 described above. The audit processing unit 170 detects whether there is an abnormal resource depending on whether the audit message is continuously queued in the memory, as in S204 to S206 below.

  First, as shown in FIG. 3C, the audit processing unit 170, when a signal indicating that the timer has expired or a numerical value is input, among the memories of the queuing processing unit 150, the audit message remains. It is confirmed whether there is any (S204).

  Specifically, the audit processing unit 170 has a message remaining in the memory of the queuing processing unit 150. If there is an identifier indicating the audit message at a predetermined position of the message, the audit message remains in the memory. Recognize that.

  Next, if the audit processing unit 170 confirms that there is a memory in which the audit message remains in S204 described above (YES in S205), it detects the abnormal resource as follows, A resource release process is performed (S206).

  First, the audit processing unit 170 determines which UE's message is the memory in which the audit message remains. For this purpose, the audit processing unit 170 recognizes an identifier (described above in S200) corresponding to the UE at a predetermined position of the remaining audit message, and recognizes which UE's message is stored in the memory. Good. The UE grasped here is referred to as a “released UE”. Next, the audit processing unit 170 recognizes resources communicating with the released UE. Since the audit processing unit 170 recognizes which resource is communicating with the UE and which UE each resource is communicating with in S200 described above, the resource that is communicating with the released UE. Can also be recognized. Next, the audit processing unit 170 releases resources communicating with the released UE.

  Next, as a result of the above-described confirmation in S204, if there is no audit message remaining (No in S205), the audit processing unit 170 recognizes that there is no abnormal resource and does nothing in particular.

(3) Operation of base station apparatus 10 when resource is abnormal FIGS. 6A to H illustrate the operation of base station apparatus 10 according to the first embodiment of the present invention (operation when abnormal resource exists). It is a figure for doing. An operation in which the base station apparatus 10 detects an abnormal resource when there is an abnormal resource that cannot be communicated will be described with reference to FIGS.

  Here, the following situation will be described as an example.

  First, it is assumed that the resources that communicate with the UEs # 1 and # 2 each transmit a predetermined message and wait for a response message for the message, that is, a response message waiting state. FIG. 6A illustrates a state in which the resource management unit 130 recognizes a response message waiting state. At this time, it is assumed that the resource for communicating with UE # 2 is an abnormal resource that cannot communicate with UE # 2 and as a result cannot receive a response message. In FIG. 6B, since the resource communicating with UE # 2 cannot receive the response message, the message analysis processing unit 120 also shows that the response message from UE # 2 cannot be acquired. In FIG. 6B, since the resource communicating with UE # 2 cannot receive the response message, the resource management unit 130 also shows that the resource remains in the response message waiting state, that is, the state cannot be changed.

  In the above-described situation, first, the audit processing unit 170 of the base station apparatus 10 executes the above-described S200 at a predetermined timing, generates an audit message for each UE in communication, and stores it in the message queue 110. FIG. 6C shows a state in which the audit processing unit 170 creates an audit message for each UE # 1 and # 2 in communication and stores the audit message in the message queue 110.

  Next, the base station apparatus 10 performs the above-described S100 to S110 for the message stored in the message queue 110 at a predetermined timing. That is, the message analysis processing unit 120 acquires the stored audit message, and processes the message according to the processing method received from the state transition processing unit 140. Currently, both resources communicating with the UEs # 1 and # 2 are waiting for a response message. Therefore, the state transition processing unit 140 determines to queue as a processing method. As a result, the audit message is queued for each UE by the message analysis processing unit 120 in the memory (denoted as a queue in the drawing) of the queuing processing unit 150 as shown in FIG. 6D.

  Next, when UE # 1 transmits a response message, the resource that communicates with UE # 1 can normally communicate with UE # 1, so that the response message is received as shown in FIG. Is stored in the message queue 110.

  Next, at the next predetermined timing, the base station apparatus 10 performs the above-described S100 to S110 for the message stored in the message queue 110. That is, as shown in FIG. 6F, the message analysis processing unit 120 of the base station apparatus 10 acquires a response message from the UE # 1, and processes the message according to the processing method specified by the state transition processing unit 140. To do. At this time, the resource communicating with UE # 1 is in a stable state since it has received a response message. Therefore, the message analysis processing unit 120 can process the response message by specifying the message processing from the state transition processing unit 140. Furthermore, since the resource for communicating with UE # 1 has transitioned to the stable state, the base station apparatus 10 performs the operations of S108 to S110 described above, and as illustrated in FIG. 6G, the queuing processing unit 150 The audit message stored in the memory for UE # 1 is processed.

  Next, the audit processing unit 170 of the base station device 10 performs the above-described S204 to 206 when the timer expires and a certain time elapses, and there is a memory in which the audit message remains as shown in FIG. 6H. Check whether or not an abnormal resource is detected.

  This time, since the audit message remains in the UE # 2 memory of the queuing processing unit 150, the audit processing unit 170 detects a resource that communicates with the UE # 2 as an abnormal resource. After that, the audit processing unit 170 of the base station apparatus 10 releases resources that communicate with UE # 2, which is an abnormal resource.

  The operation of the base station device 10 when there is an abnormal resource has been described above.

  Note that the message analysis processing unit 120, the resource management unit 130, the state transition processing unit 140, the queuing processing unit 150, and the audit processing unit 170 are realized by software as described above. These software operations may be applied not to the software of the base station apparatus but to software such as a radio exchange. That is, the operation of the above-described software can be applied to any apparatus that stores and processes a response message from the opposite apparatus in a memory. Furthermore, the above-described operation of the software may be applied to software that processes response messages from other software or hardware. In this case, it is possible to detect whether there is an abnormality in the resource between software or the resource between software and hardware.

[Description of effects]
According to the present invention, the base station apparatus can reduce the processing amount for detecting the abnormal resource, and as a result, the processing capability for detecting the abnormal resource can be prevented from greatly impairing its own processing capability. it can.

  The reason is that the base station apparatus of this embodiment does not start a timer for each call control message issued according to the call volume, but starts a timer every time a test message is created a certain number of times. This is because an abnormal resource is detected by using the method to do this. Therefore, the base station apparatus of this embodiment can reduce the frequency | count of performing a system call rather than the conventional base station apparatus using the method which starts a timer for every message for call control. As a result, the base station apparatus of this embodiment can reduce the amount of processing for detecting abnormal resources and reduce the processing load, so that its own processing capability can be prevented from being greatly impaired.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

[Description of configuration]
FIG. 7 is a diagram illustrating a configuration example of an apparatus according to the second embodiment of the present invention.

  As shown in FIG. 7, the base station device 50 according to the second embodiment includes a memory 500, an audit processing unit 510, and a message analysis processing unit 520. Moreover, although not shown in figure, the base station apparatus 50 is provided with the resource for communicating with an opposing apparatus. The opposing device is a device that communicates with the base station device 50, such as a mobile station, an MME, or another radio base station.

  The base station device 50 is a device that receives a response message for a predetermined first message transmitted to the opposite device via the resource from the opposite device and stores the response message in the memory 500. The predetermined first message may be, for example, a Handover Request defined in 3GPP. In this case, the response message is a Handover Request Acknowledge. The predetermined first message is set in the base station device 50 by the user of the base station device 50 of the present embodiment.

  The audit processing unit 510 creates a second message and stores the second message in the memory 500. The second message may be the audit message described in the first embodiment. Also, the audit processing unit 510 detects a resource when the second message remains unprocessed in the memory 500 after a predetermined time has elapsed. The predetermined time is set in the audit processing unit 510 by the user of the base station device 50 of the present embodiment. However, the predetermined time includes a time during which the message analysis processing unit 520 can normally process the second message. For example, the predetermined time may be the maximum time from when the audit processing unit 510 stores the second message until the message analysis processing unit 520 processes the second message. The user of the base station device 50 according to the present embodiment may obtain the above-described maximum time by actually measuring in advance when the resource can normally communicate with the opposite device.

  The message analysis processing unit 520 processes the response message and the second message stored in the memory 500 from when the first message is transmitted until the response message is received (hereinafter referred to as “processing prohibition period”). do not do. The message analysis processing unit 520 processes the response message and the second message in the order stored in the memory 500 during a period other than the process prohibition period.

[Description of operation]
First, the base station device 50 transmits a predetermined first message to the opposite device through the resource, and then stores a response message received from the opposite device in response to the predetermined first message in the memory 500. It is operating.

  Next, the audit processing unit 510 creates a second message and stores the second message in the memory 500.

  Next, the message analysis processing unit 520 does not process the response message or the second message stored in the memory 500 during the period from when the first message is transmitted until the response message is received, that is, during the processing prohibition period. The message analysis processing unit 520 processes the response message and the second message in the order stored in the memory 500 during a period other than the process prohibition period.

  Here, the base station device 50 can communicate with the opposite device normally, and if the resource message is received from the opposite device, the audit message stored in the memory 500 will be properly processed by the message analysis processing unit 520. Should be processed. This is because if a response message is received, there may be times when it is not the processing prohibition period. On the other hand, when there is an abnormal resource that cannot be communicated, the response message cannot be received, and the processing prohibition period continues. In that case, the message analysis processing unit 520 of the base station device 50 cannot process the audit message stored in the memory 500. The audit message will continue to be stored in the memory 500.

  Next, the audit processing unit 510 detects a resource when the second message remains in the memory 500 without being processed after a predetermined time has elapsed. The audit processing unit 510 may release the detected resource as an abnormal resource that cannot be normally communicated. In order to measure the passage of a predetermined time, the audit processing unit 510 performs an operation of starting a timer by making a system call.

[Description of effects]
According to the present invention, the base station apparatus can reduce the processing amount for detecting the abnormal resource, and as a result, the processing capability for detecting the abnormal resource can be prevented from greatly impairing its own processing capability. it can.

  The reason is that the base station apparatus of this embodiment does not start the timer for each call control message issued according to the call volume, but starts the timer every time the second message is created a certain number of times. This is because an abnormal resource is detected by using the method to do this. Therefore, the base station apparatus of this embodiment can reduce the frequency | count of performing a system call rather than the conventional base station apparatus using the method which starts a timer for every message for call control. As a result, the base station apparatus of this embodiment can reduce the amount of processing for detecting abnormal resources and reduce the processing load, so that its own processing capability can be prevented from being greatly impaired.

  The embodiment described above is not limited to the embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage.

Furthermore, a part or all of each of the above embodiments can be described as in the following supplementary notes, but is not limited thereto.
(Appendix 1)
A base comprising a resource for communicating with the opposite device, receiving a response message for the predetermined first message transmitted to the opposite device via the resource from the opposite device, and storing the response message in a memory A station device,
An audit processing unit for creating a second message and storing the second message in the memory;
Between the time when the first message is transmitted and the time when the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and other than the processing prohibition period. A message analysis processing unit that processes the response message and the second message in the order stored in the memory during the period,
The audit processing unit is configured so that the second message is not processed in the memory after a predetermined time including a time during which the message analysis processing unit can normally process the second message has elapsed. If it remains, detect the resource,
A base station apparatus.
(Appendix 2)
Ascertains whether the resource has not received the response message after sending the first message, that is, whether it is in a response message waiting state, and inputs a signal or a numerical value that requests the state of the resource, that is, a state acquisition request A resource management unit that outputs a signal or a numerical value indicating that it is not in a response message waiting state if it is not in the response message waiting state,
As a result of outputting the status acquisition request to the resource management unit, the message analysis processing unit determines a period other than the processing prohibition period when a signal or a numerical value indicating that the response message is not waiting is input.
The base station apparatus according to Supplementary Note 1, wherein
(Appendix 3)
The audit processing unit releases the detected resource;
The base station apparatus according to any one of appendices 1 to 2, characterized in that:
(Appendix 4)
The opposing device is a mobile station, MME (Mobility Management Entity), or any of the other radio base stations that communicate with the radio base station.
4. The base station apparatus according to any one of supplementary notes 1 to 3, wherein
(Appendix 5)
An apparatus comprising a resource for communicating with an opposite apparatus, receiving a response message for the predetermined first message transmitted to the opposite apparatus via the resource from the opposite apparatus, and storing the response message in a memory A program for controlling
An audit processing step of creating a second message and storing the second message in the memory;
Between the time when the first message is transmitted and the time when the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and other than the processing prohibition period. A message analysis processing step for processing the response message and the second message in the order stored in the memory during the period,
In the audit processing step, the second message is not processed in the memory after a predetermined time has elapsed since the message analysis processing step normally includes a time during which the second message can be processed. If it remains, detect the resource,
A program characterized by that.
(Appendix 6)
Ascertains whether the resource has not received the response message after sending the first message, that is, whether it is in a response message waiting state, and inputs a signal or a numerical value that requests the state of the resource, that is, a state acquisition request If it is not in the response message waiting state, it comprises a resource management step for outputting a signal or numerical value indicating that it is not in the response message waiting state,
As a result of outputting the state acquisition request to the resource management step, the message analysis processing step determines a period other than the processing prohibition period when a signal or a numerical value indicating that the response message is not waiting is input.
The program according to appendix 5, characterized by:
(Appendix 7)
The audit processing step releases the detected resource.
The program according to any one of appendices 5 to 6, characterized in that:
(Appendix 8)
A resource for communicating with the opposing function unit is provided, a response message to the predetermined first message transmitted to the opposing function unit is received from the opposing function unit via the resource, and the response message is stored in the memory. An abnormal resource detection method for detecting an abnormality of the resource of the function unit to be stored,
Audit processing means for creating a second message and storing the second message in the memory;
Between the time when the first message is transmitted and the time when the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and other than the processing prohibition period. Message analysis processing means for processing the response message and the second message in the order stored in the memory during the period,
The audit processing means is configured so that the second message is not processed in the memory after a predetermined time including a time during which the message analysis processing unit can normally process the second message has elapsed. If it remains, detect the resource,
An abnormal resource detection method characterized by the above.
(Appendix 9)
Ascertains whether the resource has not received the response message after sending the first message, that is, whether it is in a response message waiting state, and inputs a signal or a numerical value that requests the state of the resource, that is, a state acquisition request If it is not in the response message waiting state, it comprises resource management means for outputting a signal or numerical value indicating that it is not in the response message waiting state,
The message analysis processing means determines a period other than the process prohibition period when a signal or a numerical value indicating that the response message is not waiting is input as a result of outputting the state acquisition request to the resource management means.
The abnormal resource detection method according to supplementary note 8, wherein:
(Appendix 10)
The audit processing means releases the detected resource.
10. The abnormal resource detection method according to any one of appendices 8 to 9, characterized in that:
(Appendix 11)
The device is either a base station device, an MME, or an exchange,
The program according to any one of appendices 5 to 7, characterized in that:
(Appendix 12)
The opposite device is one of a mobile station, the MME, another base station device that communicates with the base station device, or the exchange.
The program according to appendix 11, which is characterized by the above.
(Appendix 13)
The functional unit is one of a base station device, MME, or an exchange, or software or hardware that controls any of the base station device, the MME, or the exchange,
11. The abnormal resource detection method according to any one of appendices 8 to 10, characterized in that:
(Appendix 14)
The front-facing function unit is the base station device that communicates with the function unit, the MME, the switch, or the base station device that communicates with the function unit, the MME, or software or hardware that controls the switch One of the
14. The abnormal resource detection method according to any one of appendix 13, wherein:

DESCRIPTION OF SYMBOLS 10 Base station apparatus 20 Other node 50 Base station apparatus 100 Message receiving part 110 Message queue 120 Message analysis process part 130 Resource management part 140 State transition process part 150 Queuing process part 160 Timer management part 170 Audit process part 500 Memory 510 Audit process Part 520 Message analysis processing part

Claims (10)

A base comprising a resource for communicating with the opposite device, receiving a response message for the predetermined first message transmitted to the opposite device via the resource from the opposite device, and storing the response message in a memory A station device,
An audit processing unit for creating a second message and storing the second message in the memory;
Between the time when the first message is transmitted and the time when the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and other than the processing prohibition period. A message analysis processing unit that processes the response message and the second message in the order stored in the memory during the period,
The audit processing unit does not process the second message in the memory after a predetermined time longer than the time required for the message analysis processing unit to normally process the second message has elapsed. If it remains in the
A base station apparatus. Ascertains whether the resource has not received the response message after sending the first message, that is, whether it is in a response message waiting state, and inputs a signal or a numerical value that requests the state of the resource, that is, a state acquisition request A resource management unit that outputs a signal or a numerical value indicating that it is not in a response message waiting state if it is not in the response message waiting state,
As a result of outputting the status acquisition request to the resource management unit, the message analysis processing unit determines a period other than the processing prohibition period when a signal or a numerical value indicating that the response message is not waiting is input.
The base station apparatus according to claim 1. The audit processing unit releases the detected resource;
The base station apparatus according to claim 1, wherein the base station apparatus is a base station apparatus. The opposing device is one of a mobile station, MME (Mobility Management Entity), or another base station device that communicates with the base station device .
The base station apparatus according to claim 1, wherein the base station apparatus is a base station apparatus. An apparatus comprising a resource for communicating with an opposite apparatus, receiving a response message for the predetermined first message transmitted to the opposite apparatus via the resource from the opposite apparatus, and storing the response message in a memory A program for controlling
An audit processing step of creating a second message and storing the second message in the memory;
Between the time when the first message is transmitted and the time when the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and other than the processing prohibition period. A message analysis processing step for processing the response message and the second message in the order stored in the memory during the period,
In the audit processing step, the second message is not processed in the memory after a predetermined time longer than the time required for the message analysis processing step to process the second message normally. If it remains in the
A program characterized by that. Ascertains whether the resource has not received the response message after sending the first message, that is, whether it is in a response message waiting state, and inputs a signal or a numerical value that requests the state of the resource, that is, a state acquisition request If it is not in the response message waiting state, it comprises a resource management step for outputting a signal or numerical value indicating that it is not in the response message waiting state,
As a result of outputting the state acquisition request to the resource management step, the message analysis processing step determines a period other than the processing prohibition period when a signal or a numerical value indicating that the response message is not waiting is input.
The program according to claim 5. The audit processing step releases the detected resource.
The program according to any one of claims 5 to 6, wherein: A resource for communicating with the opposing function unit is provided, a response message to the predetermined first message transmitted to the opposing function unit is received from the opposing function unit via the resource, and the response message is stored in the memory. An abnormal resource detection method for detecting an abnormality of the resource of the function unit to be stored,
An audit processing step of creating a second message and storing the second message in the memory;
Between the time when the first message is transmitted and the time when the response message is received, that is, the processing prohibition period does not process the response message or the second message stored in the memory, and other than the processing prohibition period. A message analysis processing step for processing the response message and the second message in the order stored in the memory during the period of
In the audit processing step, the second message is normally processed in the memory after a predetermined time longer than the time required for processing the second message has elapsed in the message analysis processing step. If it remains undetected, it will detect the resource,
An abnormal resource detection method characterized by the above. Ascertains whether the resource has not received the response message after sending the first message, that is, whether it is in a response message waiting state, and inputs a signal or a numerical value that requests the state of the resource, that is, a state acquisition request A resource management step for outputting a signal or a numerical value indicating that it is not in a response message waiting state if it is not in the response message waiting state,
In the message analysis processing step, when a signal or a numerical value indicating that the response message is not in a waiting state is input by the resource management step as a result of outputting the state acquisition request, it is determined as a period other than the processing prohibition period ,
The abnormal resource detection method according to claim 8. In the audit processing step, the detected resource is released.
The abnormal resource detection method according to claim 8, wherein the abnormal resource detection method is used.

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