WO2009125679A1 - 通信システム、管理装置、管理方法およびプログラム - Google Patents
通信システム、管理装置、管理方法およびプログラム Download PDFInfo
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- WO2009125679A1 WO2009125679A1 PCT/JP2009/056149 JP2009056149W WO2009125679A1 WO 2009125679 A1 WO2009125679 A1 WO 2009125679A1 JP 2009056149 W JP2009056149 W JP 2009056149W WO 2009125679 A1 WO2009125679 A1 WO 2009125679A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
Definitions
- the present invention relates to a communication system, a management apparatus, a management method, and a program that provide a plurality of services to a mobile terminal.
- the Mobile WiMAX system which applies WiMAX (Worldwide Interoperability for Microwave Access) technology, which has been attracting attention in recent years, to mobile communication via mobile base station (BS) is a mobile station (MS) (Mobile Station).
- ASN-GW Access Service Network Gateway
- This ASN-GW is disclosed in, for example, the document “WiMAX Forum Network Architecture-Stage3-Detailed Protocols and Procedures-Release 1.1.1 September 14, 2007”.
- This ASN-GW has three logical functions: a Serving function that manages MS information, an Anchor function that is a data path for MS communication, and an Authenticator function that performs MS authentication processing. Have These functions are executed by the ASN-GW connected to the BS entered by the MS.
- the above three logical functions may be physically distributed to a plurality of ASN-GWs.
- a handover across multiple ASN-GWs R4HO: Reference-Point 4 Hand Over
- Logical functions may be distributed across multiple ASN-GWs.
- MSA three logical functions for an arbitrary MS (hereinafter referred to as MSA) are physically three ASN-GWs (ASN-GW1 that implements the Serving function, ASN-GW2 that implements the Authenticator function, and Anchor). Take as an example the case of being distributed to ASN-GW 3) that implements the function.
- ASN-GW1 that implements the Serving function
- ASN-GW2 that implements the Authenticator function
- Anchor Take as an example the case of being distributed to ASN-GW 3 that implements the function.
- An object of the present invention is to provide a communication system, a management apparatus, a management method, and a program that solve the above-described problems.
- the present invention provides: In a communication system having a plurality of service providing apparatuses that provide a plurality of services to a mobile communication terminal having a wireless communication function via a wireless base station, and a management apparatus connected to the plurality of service providing apparatuses,
- the management device detects whether any of the plurality of service providing devices is in a service stop state, and provides a service stop state to a service providing device other than the service providing device in the service stop state.
- the service providing apparatus that has become instructed to release the resource of the mobile communication terminal that provided the service.
- a management device that manages a plurality of service providing devices that provide a plurality of services to a mobile communication terminal having a wireless communication function via a wireless base station
- a service providing apparatus that detects whether any of the plurality of service providing apparatuses is in a service stopped state and is in the service stopped state with respect to a service providing apparatus other than the service providing apparatus in the service stopped state Instructs the release of the resources of the mobile communication terminal that provided the service.
- a program to be executed by a management device that manages a plurality of service providing devices that provide a plurality of services to a mobile communication terminal having a wireless communication function via a wireless base station, A procedure for detecting whether any of the plurality of service providing devices is in a service stop state; Causing the service providing apparatus other than the service providing apparatus in the service stopped state to execute a procedure for instructing the release of the resources of the mobile communication terminal that provided the service by the service providing apparatus in the service stopped state.
- the service providing apparatus instructs the service providing apparatus to release the resource of the mobile communication terminal that has provided the service, the risk of resource depletion can be reduced.
- FIG. 2 is a diagram illustrating an example of an internal configuration of an ASN-GW illustrated in FIG.
- FIG. 3 is a diagram illustrating an example of MS management information stored in an ASN-GW management table illustrated in FIG. 1.
- FIG. 3 is a diagram illustrating an example of MS management information stored in an ASN-GW management table illustrated in FIG. 1.
- FIG. 3 is a diagram illustrating an example of MS management information stored in an ASN-GW management table illustrated in FIG. 1.
- FIG. 1 It is a figure which shows an example of an internal structure of the management apparatus shown in FIG.
- FIG. 3 is a flowchart for explaining an example of a failure occurrence notification process in the ASN-GW shown in FIG.
- FIG. 3 is a flowchart for explaining an example of an ASN-GW management method in the management apparatus shown in FIG. 1;
- FIG. 3 is a flowchart for explaining an example of resource release processing in the ASN-GW shown in FIG. 1;
- FIG. 6 is a flowchart for explaining another example of an ASN-GW management method in the management apparatus shown in FIG. 1;
- FIG. 1 is a diagram showing an embodiment of a communication system according to the present invention.
- a management apparatus 101 ASN-GWs 201-1 to 201-n, BS301-11 to BS301-1v, BS301-21 to BS301-2w, BS301-31 to BS301- 3x, BS301-41 to BS301-4y, and BS301-n1 to BS301-nz.
- n, v, w, x, y, and z are arbitrary natural numbers, and in particular, n is an arbitrary natural number of 2 or more.
- MS 401-1 to 401-3 which are mobile communication terminals having a wireless communication function. Note that FIG. 1 illustrates the case where the number of the MSs 401-1 to 401-3 is three, but the number is not limited.
- the management apparatus 101 is connected to the ASN-GWs 201-1 to 201-n and manages the ASN-GWs 201-1 to 201-n.
- ASN-GWs 201-1 to 201-n are BS301-11 to BS301-1v, BS301-21 to BS301-2w, BS301-31 to BS301-3x, BS301-41 to BS301-4y, BS301-n1 to BS301-nz.
- BS301-11 to BS301-1v which are service providing apparatuses provided in the WiMAX network for performing processing on MSs 401-1 to 401-3 via the wireless LAN, are wireless base stations connected to ASN-GW 201-1.
- BS 301-21 to BS 301-2w are radio base stations connected to ASN-GW 201-2.
- BS 301-31 to BS 301-3x are radio base stations connected to ASN-GW 201-3.
- BS 301-41 to BS 301-4y are radio base stations connected to ASN-GW 201-4.
- BS 301-n1 to BS 301-nz are radio base stations connected to ASN-GW 201-n.
- FIG. 2 is a diagram showing an example of the internal configuration of the ASN-GW 201-1 shown in FIG.
- the ASN-GW 201-1 shown in FIG. 1 includes a service providing unit 211, a failure detection unit 212, a failure occurrence signal creation unit 213, a communication unit 214, a management table 215, and a management table 215.
- a table update unit 116 and a resource management unit 217 are provided.
- the service providing unit 211 provides a predetermined service to the MS 401-1 to 401-3 via the BS 301-11 to BS 301-1 v.
- services functions
- an Anchor function serving as a data path (path) for communication between the MS 401-1 to 401-3
- a Serving function for managing information of the MS 401-1 to 401-3
- an MS 401 Authenticator functions for performing authentication processes -1 to 401-3 are provided.
- the failure detection unit 212 detects that a failure that prevents the service providing unit 211 from providing a service has occurred.
- This detection method may be any method that uses a commonly used failure detection method.
- a signal that the service providing unit 211 should transmit to the MS 401-1 to 401-3 via the BS 301-11 to BS 301-1 v is transmitted. It may be by detecting that it is not done. Further, it may be based on monitoring the process executed by the service providing unit 211 and detecting that at least one of the processes is stopped.
- the failure detection unit 212 detects that a failure has occurred in the service providing unit 211, that is, the service provision from the service providing unit 211 has been stopped, the failure detection unit 212 notifies the failure occurrence signal creation unit 213 to that effect.
- the failure occurrence signal creation unit 213 creates a failure occurrence signal when the failure detection unit 212 is notified that a failure has occurred in the service providing unit 211, that is, the service has been stopped.
- the failure occurrence signal may be any signal that can be recognized by the management apparatus 101, and the signal format is not particularly defined here.
- the failure occurrence signal includes ASN-GW identification information uniquely assigned so that ASN-GW 201-1 can be identified.
- the failure occurrence signal creation unit 213 When the failure occurrence signal creation unit 213 creates the failure occurrence signal, the failure occurrence signal creation unit 213 outputs the created failure occurrence signal to the communication unit 214.
- the communication unit 214 is a second communication unit that performs communication with the management apparatus 101 and the ASN-GWs 202-2 to 202-n.
- the communication unit 214 transmits the failure occurrence signal output from the failure occurrence signal creation unit 213 to the management apparatus 101.
- the MS management information stored in the management table 215 is transmitted to the management apparatus 101 via the management table update unit 216 at a preset timing.
- the MS management information stored in the management table 215 is updated by the mobility of the MSs 401-1 to 401-3, the MS management information is transmitted to the ASN-GWs 201-2 to 201 -n.
- the MS management information transmitted from the ASN-GWs 201-2 to 201-n is output to the management table update unit 216.
- the management table 215 stores MS management information for managing MSs that ASN-GW 201-1 provides services (managed under the control and securing resources).
- the resource is a memory area necessary for performing a certain process. It is also a processing area of the CPU.
- FIG. 3 is a diagram showing an example of MS management information stored in the management table 215 of the ASN-GW 201-1 shown in FIG.
- the MS identification information provided by the ASN-GW 201-1 (managed under its control) and the MS The identification information of the Anchor ASN-GW that performs the Anchor function serving as the data path for communication, the identification information of the Serving ASN-GW that performs the Serving function for managing the information of the MS, and the authentication of the MS Authenticator ASN-GW identification information that performs an authenticator function for processing is stored in association with each other.
- the portion surrounded by a thick line is a function currently provided by the ASN-GW 201-1.
- MS identification information MS401-1, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-2, and Authenticator ASN-GW identification information ASN-GW 201-3 are supported. Attached and stored. This indicates to the MS 401-1 that the ASN-GW 201-1 performs the Anchor function, the ASN-GW 201-2 performs the Serving function, and the ASN-GW 201-3 performs the Authenticator function. Yes. Also, MS identification information MS401-2, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-1 and Authenticator ASN-GW identification information ASN-GW 201-1 are supported. Attached and stored.
- ASN-GW 201-1 performs the Anchor function, Serving function, and Authenticator function with respect to the MS 401-1. Also, MS identification information MS401-3, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-2, and Authenticator ASN-GW identification information ASN-GW 201-2 are supported. Attached and stored. This indicates that the ASN-GW 201-1 performs the Anchor function and the ASN-GW 201-2 performs the Serving function and the Authenticator function for the MS 401-3.
- the ASN-GW 201-1 is connected to the MS (MS 401-1 to 401-3 in FIG. 3) that the ASN-GW 201-1 is providing (managing under the control).
- MS MS 401-1 to 401-3 in FIG. 3
- ASN-GW 201-1 is providing (managing under the control).
- FIG. 4 is a diagram showing an example of MS management information stored in the management table 215 of the ASN-GW 201-2 shown in FIG.
- the MS identification information provided by the ASN-GW 201-2 (managed under its control) and the MS The identification information of the Anchor ASN-GW that performs the Anchor function serving as the data path for communication, the identification information of the Serving ASN-GW that performs the Serving function for managing the information of the MS, and the authentication of the MS Authenticator ASN-GW identification information that performs an authenticator function for processing is stored in association with each other.
- the portion surrounded by a thick line is the function that ASN-GW 201-2 is currently in charge of providing.
- MS identification information MS401-1, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-2, and Authenticator ASN-GW identification information ASN-GW 201-3 are supported. Attached and stored. This indicates to the MS 401-1 that the ASN-GW 201-1 performs the Anchor function, the ASN-GW 201-2 performs the Serving function, and the ASN-GW 201-3 performs the Authenticator function. Yes. Also, MS identification information MS401-3, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-2, and Authenticator ASN-GW identification information ASN-GW 201-2 are supported. Attached and stored. This indicates that the ASN-GW 201-1 performs the Anchor function and the ASN-GW 201-2 performs the Serving function and the Authenticator function for the MS 401-3.
- the ASN-GW 201-2 is connected to the MS (MS 401-1 and 401-3 in FIG. 4) that the ASN-GW 201-2 provides (manages under its control).
- MS MS 401-1 and 401-3 in FIG. 4
- ASN-GW 201-1 and 201-3 to 201-n provide functions not provided by the ASN-GW 201-2.
- FIG. 5 is a diagram showing an example of the MS management information stored in the management table 215 of the ASN-GW 201-3 shown in FIG.
- the MS identification information provided by ASN-GW 201-3 (managed under its control) and the MS The identification information of the Anchor ASN-GW that performs the Anchor function serving as the data path for communication, the identification information of the Serving ASN-GW that performs the Serving function for managing the information of the MS, and the authentication of the MS Authenticator ASN-GW identification information that performs an authenticator function for processing is stored in association with each other.
- the portion surrounded by a thick line is the function currently provided by the ASN-GW 201-3.
- MS identification information MS401-1 Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-2, and Authenticator ASN-GW identification information ASN-GW 201-3 are supported. Attached and stored. This indicates to the MS 401-1 that the ASN-GW 201-1 performs the Anchor function, the ASN-GW 201-2 performs the Serving function, and the ASN-GW 201-3 performs the Authenticator function. Yes.
- ASN-GW 201-3 can provide ASN-GW 201-3 with respect to the MS (MS 401-1 in FIG. 5) that ASN-GW 201-3 provides (manages under its control). It is possible to recognize (manage) which ASN-GWs 201-1, 201-2, 201-4 to 201-n provide functions not provided by the GW 201-3.
- the MS management information shown in FIGS. 3 to 5 is re-authenticated after a handover (R4HO) is performed across different ASN-GWs in MS 401-1 to 401-3 or after R4HO.
- R4HO handover
- the ASN-GWs 201-1 to 201-n are notified to each other at a preset timing. Is.
- the management table update unit 216 updates the MS management information stored in the management table 215 as necessary. For example, when MS management information is transmitted from the ASN-GWs 201-2 to 201-n via the communication unit 214, the management table 215 is updated based on the transmitted MS management information. Further, when the functions provided to the MS 401-1 to 401-3 are changed due to the mobility of the MS 401-1 to 401-3, the management table 215 is updated. Further, the MS management information stored in the management table 215 is read out as necessary, and is transmitted to the management apparatus 101 via the communication unit 214.
- the resource management unit 217 manages the resources of the MSs 401-1 to 401-3 that the ASN-GW 201-1 provides services.
- the internal configuration of the ASN-GWs 201-2 to 201-n shown in FIG. 1 is the same as the internal configuration of the ASN-GW 201-1 described above.
- FIG. 6 is a diagram illustrating an example of an internal configuration of the management apparatus 101 illustrated in FIG.
- the management apparatus 101 shown in FIG. 1 includes a communication unit 111, a search unit 112, a management table 113, a release instruction signal creation unit 114, and an identification information extraction unit 115. Yes.
- the communication unit 111 is a first communication unit that performs communication with the ASN-GWs 201-1 to 201-n illustrated in FIG.
- the identification information extraction unit 115 is transmitted from the ASN-GWs 201-1 to 201-n and received from the communication unit 111, and the ASN- uniquely assigned to each ASN-GW 201-1 to 201-n. GW identification information is extracted. The extracted ASN-GW identification information is output to the search unit 112.
- the search unit 112 Based on the ASN-GW identification information output from the identification information extraction unit 115, the search unit 112 performs other processing on the MS that is being processed by the ASN-GW in which the failure has occurred from the management table 113 and the MS. The ASN-GW that is performing the process is searched.
- the management table 113 includes MS identification information uniquely assigned to the MSs 401-1 to 401-3 and ASN-GWs 201-1 to 201-n that process the MSs 401-1 to 401-3. -Stores process association information associated with GW identification information.
- This processing association information is information created based on the MS management information stored in the management table 215 of the ASN-GWs 201-1 to 201-n.
- the MS management information is read from the ASN-GWs 201-1 to 201-n by the management apparatus 101, and processing association information is created based on the read MS management information. Stored in the management table 113.
- FIG. 7 is a diagram illustrating an example of the processing association information stored in the management table 113 illustrated in FIG.
- MS identification information In the management table 113 shown in FIG. 6, as shown in FIG. 7, MS identification information, Anchor ASN-GW identification information that performs the Anchor function serving as a data path (path) for communication with the MS, The identification information of the Serving ASN-GW that performs the Serving function for managing the information of the MS is stored in association with the identification information of the Authenticator ASN-GW that performs the Authenticator function for performing the authentication process of the MS.
- MS identification information MS401-1, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-2, and Authenticator ASN-GW identification information ASN-GW 201-3 are supported. Attached and stored. This indicates to the MS 401-1 that the ASN-GW 201-1 performs the Anchor function, the ASN-GW 201-2 performs the Serving function, and the ASN-GW 201-3 performs the Authenticator function. Yes. Also, MS identification information MS401-2, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-1 and Authenticator ASN-GW identification information ASN-GW 201-1 are supported. Attached and stored.
- ASN-GW 201-1 performs the Anchor function, Serving function, and Authenticator function with respect to the MS 401-1. Also, MS identification information MS401-3, Anchor ASN-GW identification information ASN-GW 201-1, Serving ASN-GW identification information ASN-GW 201-2, and Authenticator ASN-GW identification information ASN-GW 201-2 are supported. Attached and stored. This indicates that the ASN-GW 201-1 performs the Anchor function and the ASN-GW 201-2 performs the Serving function and the Authenticator function for the MS 401-3.
- MS management information held by the ASN-GWs 201-1 to 201-n is read (acquired) from the management apparatus 101 at a preset period. May be changed. Also, the functions (roles) performed by each ASN-GW 201-1 to 201-n after handover (R4HO) across different ASN-GWs, after re-authentication after R4HO, etc. When there is a notification from the ASN-GWs 201-1 to 201-n due to the change, it may be changed at a preset timing.
- the release instruction signal creation unit 114 creates a release instruction signal indicating that the corresponding MS resource is released to the corresponding ASN-GW based on the search result of the search unit 112, and communicates the created release instruction signal. Output to the unit 111.
- ASN-GWs 201-1 to 201-n that perform the Anchor function, Serving function, and Authenticator function for one MS (for example, MS 401-1).
- FIG. 8 is a diagram showing a first example of state transitions of ASN-GWs 201-1 to 201-n that perform the Anchor function, Serving function, and Authenticator function for one MS.
- the ASN-GW 201-1 performs the Anchor function, Serving function, and Authenticator function for the MS 401-1 (state A 1). That is, in state A1, for MS 401-1, ASN-GW 201-1 becomes Anchor ASN-GW, Serving ASN-GW, and Authenticator ASN-GW.
- the authenticator function for the MS 401-1 moves from the ASN-GW 201-1 to the ASN-GW 201-2 (state A3). That is, in the state A3, the ASN-GW 201-1 becomes the Anchor ASN-GW for the MS 401-1. Also, the ASN-GW 201-2 becomes the Authenticator ASN-GW and the Serving ASN-GW.
- the Serving function for MS 401-1 moves from ASN-GW 201-2 to ASN-GW 201-1.
- State A4 That is, in the state A4, for the MS 401-1, the ASN-GW 201-1 becomes the Anchor ASN-GW and the Serving ASN-GW. Also, the ASN-GW 201-2 becomes the Authenticator ASN-GW.
- FIG. 9 is a diagram showing a second example of state transition of the ASN-GWs 201-1 to 201-n that performs the Anchor function, Serving function, and Authenticator function for one MS.
- the ASN-GW 201-1 performs the Anchor function, Serving function, and Authenticator function for the MS 401-1 (state A 11). That is, in the state A11, for the MS 401-1, the ASN-GW 201-1 becomes the Anchor ASN-GW, the Serving ASN-GW, and the Authenticator ASN-GW.
- the Authenticator function for the MS 401-1 moves from the ASN-GW 201-1 to the ASN-GW 201-2 (state A13). That is, in the state A13, the ASN-GW 201-1 becomes the Anchor ASN-GW for the MS 401-1. Also, the ASN-GW 201-2 becomes the Authenticator ASN-GW and the Serving ASN-GW.
- the Serving function for MS 401-1 moves from ASN-GW 201-3 to ASN-GW 201-1.
- State A15 That is, in the state A15, for the MS 401-1, the ASN-GW 201-1 becomes the Anchor ASN-GW and the Serving ASN-GW. Also, the ASN-GW 201-2 becomes the Authenticator ASN-GW.
- FIG. 10 is a diagram showing a third example of state transition of the ASN-GWs 201-1 to 201-n that performs the Anchor function, Serving function, and Authenticator function for one MS.
- the ASN-GW 201-1 performs the Anchor function, Serving function, and Authenticator function for the MS 401-1 (state A 21). That is, in the state A21, for the MS 401-1, the ASN-GW 201-1 becomes the Anchor ASN-GW, the Serving ASN-GW, and the Authenticator ASN-GW.
- the authenticator function for the MS 401-1 moves from the ASN-GW 201-1 to the ASN-GW 201-2 (state A23). That is, in the state A23, the ASN-GW 201-1 becomes the Anchor ASN-GW for the MS 401-1. Also, the ASN-GW 201-2 becomes the Authenticator ASN-GW and the Serving ASN-GW.
- ASN-GW 201-1 becomes Anchor ASN-GW for MS 401-1.
- ASN-GW 201-2 becomes the Authenticator ASN-GW.
- ASN-GW 201-3 becomes Serving ASN-GW.
- the Serving function for the MS 401-1 moves from the ASN-GW 201-3 to the ASN-GW 201-4.
- State A25 That is, in the state A25, the ASN-GW 201-1 becomes the Anchor ASN-GW for the MS 401-1. Also, the ASN-GW 201-2 becomes the Authenticator ASN-GW. Further, ASN-GW 201-4 becomes Serving ASN-GW.
- FIG. 11 is a diagram illustrating a fourth example of state transitions of ASN-GWs 201-1 to 201-n that perform the Anchor function, Serving function, and Authenticator function for one MS.
- the ASN-GW 201-1 performs the Anchor function, Serving function, and Authenticator function for the MS 401-1 (state A 31). That is, in the state A31, for the MS 401-1, the ASN-GW 201-1 becomes the Anchor ASN-GW, the Serving ASN-GW, and the Authenticator ASN-GW.
- the Serving function for MS401-1 moves from ASN-GW201-2 to ASN-GW201-3.
- State A33 That is, in the state A33, for the MS 401-1, the ASN-GW 201-1 becomes the Anchor ASN-GW and the Authenticator ASN-GW. Further, ASN-GW 201-3 becomes Serving ASN-GW.
- the Anchor ASN-GW, Serving ASN-GW, and Authenticator ASN-GW that are logically separated according to R4HO and re-authentication generated by the movement of the MS 401-1 are physically Distributed to different ASN-GWs.
- failure occurrence notification process in the ASN-GWs 201-1 to 201-n shown in FIG. 1 will be described.
- a failure occurrence notification process in ASN-GW 201-1 will be described as an example.
- FIG. 12 is a flowchart for explaining an example of the failure occurrence notification process in the ASN-GW 201-1 shown in FIG.
- the failure detection unit 212 when it is detected in step 1 that a failure (service stop) in which the service providing unit 211 cannot provide a service has occurred in the failure detection unit 212, the failure detection unit 212 notifies that fact.
- the generated signal is output to the generation signal generator 213.
- the failure occurrence signal creation unit 213 creates a failure occurrence signal indicating that a failure has occurred in the service providing unit 211.
- the failure occurrence signal includes ASN-GW identification information of ASN-GW 201-1.
- the created failure occurrence signal is transmitted from the failure occurrence signal creation unit 213 to the management apparatus 101 via the communication unit 214 in step 3.
- FIG. 13 is a flowchart for explaining an example of the management method of the ASN-GWs 201-1 to 201-n in the management apparatus 101 shown in FIG.
- a case where a failure occurs in the ASN-GW 201-2 will be described as an example.
- the failure occurrence signal for notifying that a failure has occurred in the ASN-GWs 201-1 to 201-n includes identification information of the ASN-GWs 201-1 to 201-n that are notification sources.
- the received failure occurrence signal is output to the identification information extraction unit 115.
- the identification information extraction unit 115 extracts the identification information of the ASN-GW 201-2 from the failure occurrence signal.
- the extracted identification information of the ASN-GW 201-2 is output from the identification information extraction unit 115 to the search unit 112.
- the search unit 112 searches the management table 113 for MSs (MS identification information) under the ASN-GW 201-2 in Step 13.
- the MSs under the ASN-GW 201-2 are the MS 401-1 and the MS 401-3, so the MS 401-1 and the MS 402-3 are searched.
- the ASN-GW that is processing the searched MS 401-1 or MS 401-3 is searched in step 14.
- ASN-GW 201-1 and ASN-GW 201-3 are searched.
- a release instruction signal for instructing the searched ASN-GW 201-1 and ASN-GW 201-3 to release resources reserved for processing MS 401-1 and MS 401-3 is a release instruction signal in step 15.
- This release instruction signal includes information on transmission destinations (searched ASN-GW 201-1 and ASN-GW 201-3), MS identification information (MS 401-1 and MS 401-3) of an MS that is a resource release target, and Any information may be included as long as it includes information indicating an instruction to release a secured resource, and the signal format is not particularly defined here.
- the release instruction signal is generated by the release instruction signal generation unit 114, the generated release instruction signal is transmitted from the communication unit 111 to the transmission destinations ASN-GW 201-1 and ASN-GW 201-3 in Step 16.
- FIG. 14 is a flowchart for explaining an example of resource release processing in the ASN-GW 201-1 shown in FIG.
- the release instruction signal transmitted from the management apparatus 101 When the release instruction signal transmitted from the management apparatus 101 is received by the communication unit 214 of the ASN-GW 201-1 in step 21, the MS identification information is received from the received release instruction signal in step 22 in the management table update unit 216. Extracted by Here, the release instruction signal transmitted from the management apparatus 101 includes MS 401-1 and MS 401-3 as MS identification information.
- the MS resource corresponding to the extracted MS identification information is released by the resource management unit 217 in step 23.
- the resources of MS 401-1 and MS 401-3 are released.
- the management table update unit 216 deletes the MS management information corresponding to the MS 401-1 and the MS 401-3 from the management table 215.
- whether or not a failure has occurred in the ASN-GWs 201-1 to 201-n may be recognized from the management apparatus 101 using periodic monitoring (Polling or the like).
- FIG. 15 is a diagram showing another example of the internal configuration of the management apparatus 101 shown in FIG.
- the management device 101 shown in FIG. 1 includes a communication unit 111, a search unit 112, a management table 113, a release instruction signal creation unit 114, and a failure monitoring unit 116. .
- the “identification information extraction unit 115” in the example of the internal configuration of the management apparatus 101 illustrated in FIG. 6 is replaced with a “failure monitoring unit 116”.
- the failure monitoring unit 116 periodically monitors whether or not a failure has occurred in the ASN-GWs 201-1 to 201-n.
- This monitoring method may be a method generally used for monitoring the opposite device, and may be a method of monitoring a predetermined register (bit) provided in the ASN-GWs 201-1 to 201-n. Further, it may be based on a request / response signal. Then, as a result of monitoring, the ASN-GW identification information of the ASN-GWs 201-1 to 201-n recognized as having failed is output to the search unit 112.
- the search unit 112 Based on the ASN-GW identification information output from the failure monitoring unit 116, the search unit 112 performs a process on the MS being processed by the ASN-GW in which the failure has occurred from the management table 113 and the MS. Search the ASN-GW that is processing.
- FIG. 16 is a flowchart for explaining another example of the management method of the ASN-GWs 201-1 to 201-n in the management apparatus 101 shown in FIG.
- the internal configuration of the management apparatus 101 here is as shown in FIG.
- a case where a failure has occurred in the ASN-GW 201-2 will be described as an example.
- the failure monitoring unit 116 of the management apparatus 101 monitors the failure (whether or not the service is stopped) of the ASN-GWs 201-1 to 201-n via the communication unit 111. For example, a failure monitoring signal is transmitted from the failure monitoring unit 116 to the ASN-GWs 201-1 to 201-n via the communication unit 111 at regular intervals, and a response to the failure monitoring signal is sent to the ASN-GW 201- Whether or not a failure has occurred in the ASN-GWs 201-1 to 201-n is recognized in step 31 based on whether or not they are transmitted from 1 to 201-n.
- This failure monitoring method may use a general polling or the like that periodically monitors the opposite (connected) device.
- the failure monitoring unit 116 recognizes that a failure has occurred in the ASN-GW 201-2 in step 31, the identification information of the recognized ASN-GW 201-2 is output from the failure monitoring unit 116 to the search unit 112.
- the search unit 112 based on the identification information of the ASN-GW 201-2, the MS (MS identification information) subordinate to the ASN-GW 201-2 is searched from the management table 113 in step 32.
- the MSs under the ASN-GW 201-2 are the MS 401-1 and the MS 401-3, so the MS 401-1 and the MS 402-3 are searched.
- the ASN-GW that is processing the searched MS 401-1 or MS 401-3 is searched in Step 33.
- ASN-GW 201-1 and ASN-GW 201-3 are searched.
- a release instruction signal for instructing the searched ASN-GW 201-1 and ASN-GW 201-3 to release resources reserved for processing MS 401-1 and MS 401-3 is a release instruction signal in step 34.
- This release instruction signal includes information on transmission destinations (searched ASN-GW 201-1 and ASN-GW 201-3), MS identification information (MS 401-1 and MS 401-3) of an MS that is a resource release target, and Any information may be included as long as it includes information indicating an instruction to release a secured resource, and the signal format is not particularly defined here.
- the release instruction signal is generated by the release instruction signal generation unit 114
- the generated release instruction signal is transmitted from the communication unit 111 to the transmission destinations ASN-GW 201-1 and ASN-GW 201-3 in step 35.
- the processing of the management apparatus 101 described above may be performed by a logic circuit manufactured according to the purpose. Further, a program in which processing contents are described as a procedure may be recorded on a recording medium readable by the management apparatus 101, and the program recorded on the recording medium may be read by the management apparatus 101 and executed.
- the recording medium readable by the management apparatus 101 is a removable recording medium such as a floppy disk (registered trademark), a magneto-optical disk, a DVD, and a CD, and a memory such as a ROM and a RAM built in the management apparatus 101. And HDD.
- the program recorded on this recording medium is read by a CPU (not shown) in the management apparatus 101, and the same processing as described above is performed under the control of the CPU.
- the CPU operates as a computer that executes a program read from a recording medium on which the program is recorded.
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Abstract
Description
無線基地局を介して無線通信機能を具備した移動通信端末に対して複数のサービスを提供する複数のサービス提供装置と、前記複数のサービス提供装置と接続された管理装置とを有する通信システムにおいて、
前記管理装置は、前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出し、前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して、前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示することを特徴とする。
前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出し、前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示する。
前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出するステップと、
前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示するステップとを有する。
前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出する手順と、
前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示する手順とを実行させる。
BS301-11~BS301-1vは、ASN-GW201-1と接続された無線基地局である。
Claims (18)
- 無線基地局を介して無線通信機能を具備した移動通信端末に対して複数のサービスを提供する複数のサービス提供装置と、前記複数のサービス提供装置と接続された管理装置とを有する通信システムにおいて、
前記管理装置は、前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出し、前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して、前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示することを特徴とする通信システム。 - 請求項1に記載の通信システムにおいて、
前記管理装置は、
前記移動通信端末に固有に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に固有に付与されたASN-GW識別情報とを対応付けた処理対応付け情報を格納する管理テーブルと、
前記サービス提供装置がサービス停止状態にあるかどうかを監視する障害監視部と、
前記障害監視部にてサービス停止状態にあると認識されたサービス提供装置に付与されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索し、検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索する検索部と、
前記検索されたMS識別情報が付与された移動通信端末のリソースを解放する指示である解放指示信号を作成する解放指示信号作成部と、
前記解放指示信号を前記検索されたASN-GW識別情報が付与されたサービス提供装置へ送信する第1の通信部とを有し、
前記サービス提供装置は、
前記解放指示信号を受信した場合、該解放指示信号にて指示された移動通信端末のリソースを解放するリソース管理部を有することを特徴とする通信システム。 - 請求項2に記載の通信システムにおいて、
前記サービス提供装置は、
前記サービスを提供するサービス提供部と、
前記サービス提供部がサービス停止状態になったことを検出する障害検出部と、
サービス停止状態になったことを前記障害検出部が検出した場合、当該サービス提供装置に付与されたASN-GW識別情報を含む、前記障害が発生した旨を示す障害発生信号を作成する障害発生信号作成部と、
前記障害発生信号を前記管理装置へ送信する第2の通信部とを有し、
前記管理装置は、
前記サービス提供装置から送信されてきた前記障害発生信号から前記ASN-GW識別情報を抽出する識別情報抽出部を有し、
前記検索部は、前記抽出されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索し、検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索することを特徴とする通信システム。 - 請求項3に記載の通信システムにおいて、
前記サービス提供部は、前記移動通信端末に対して、前記移動通信端末が通信するためのデータの経路となるサービスと、前記移動通信端末の情報を管理するサービスと、前記移動通信端末の認証処理を行うサービスとを、提供することを特徴とする通信システム。 - 請求項2乃至4のいずれか1項に記載の通信システムにおいて、
前記管理装置は、前記サービス提供装置が管理する、該サービス提供装置がサービスを提供している移動通信端末に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に付与されたASN-GW識別情報とを対応付けたMS管理情報を、前記サービス提供装置から所定のタイミングで取得し、前記MS管理情報に基づいて前記処理対応付け情報を作成し、該処理対応付け情報を前記管理テーブルに格納することを特徴とする通信システム。 - 請求項2乃至4のいずれか1項に記載の通信システムにおいて、
前記サービス提供装置は、当該サービス提供装置が管理する、該サービス提供装置がサービスを提供している移動通信端末に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に付与されたASN-GW識別情報とを対応付けたMS管理情報を、前記管理装置へ所定のタイミングで送信し、
前記管理装置は、前記サービス提供装置から送信されてきたMS管理情報に基づいて前記処理対応付け情報を作成し、該処理対応付け情報を前記管理テーブルに格納することを特徴とする通信システム。 - 無線基地局を介して無線通信機能を具備した移動通信端末に対して複数のサービスを提供する複数のサービス提供装置を管理する管理装置であって、
前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出し、前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示する管理装置。 - 請求項7に記載の管理装置において、
前記移動通信端末に固有に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に固有に付与されたASN-GW識別情報とを対応付けた処理対応付け情報を格納する管理テーブルと、
前記サービス提供装置がサービス停止状態にあるかどうかを監視する障害監視部と、
前記障害監視部にてサービス停止状態にあると認識されたサービス提供装置に付与されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索し、検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索する検索部と、
前記検索されたMS識別情報が付与された移動通信端末のリソースを解放する指示である解放指示信号を作成する解放指示信号作成部と、
前記解放指示信号を前記検索されたASN-GW識別情報が付与されたサービス提供装置へ送信する通信部とを有することを特徴とする管理装置。 - 請求項8に記載の管理装置において、
前記サービス提供装置から該サービス提供装置に付与されたASN-GW識別情報を含む障害発生信号が送信されてきた場合、前記障害発生信号から前記ASN-GW識別情報を抽出する識別情報抽出部を有し、
前記検索部は、前記抽出されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索し、検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索することを特徴とする管理装置。 - 請求項8または請求項9に記載の管理装置において、
前記サービス提供装置が管理する、該サービス提供装置がサービスを提供している移動通信端末に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に付与されたASN-GW識別情報とを対応付けたMS管理情報を、前記サービス提供装置から所定のタイミングで取得し、前記MS管理情報に基づいて前記処理対応付け情報を作成し、該処理対応付け情報を前記管理テーブルに格納することを特徴とする管理装置。 - 無線基地局を介して無線通信機能を具備した移動通信端末に対して複数のサービスを提供する複数のサービス提供装置を管理する管理方法であって、
前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出するステップと、
前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示するステップとを有する管理方法。 - 請求項11に記載の管理方法において、
前記移動通信端末に固有に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に固有に付与されたASN-GW識別情報とを対応付けた処理対応付け情報を管理テーブルに格納するステップと、
前記サービス提供装置がサービス停止状態にあるかどうかを監視するステップと、
サービス停止状態にあると認識されたサービス提供装置に付与されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索するステップと、
前記検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索するステップと、
前記検索されたMS識別情報が付与された移動通信端末のリソースを解放する指示である解放指示信号を作成するステップと、
前記解放指示信号を前記検索されたASN-GW識別情報が付与されたサービス提供装置へ送信するステップとを有することを特徴とする管理方法。 - 請求項12に記載の管理方法において、
前記サービス提供装置から該サービス提供装置に付与されたASN-GW識別情報を含む障害発生信号が送信されてきた場合、前記障害発生信号から前記ASN-GW識別情報を抽出するステップと、
前記抽出されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索するステップと、
前記検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索するステップとを有することを特徴とする管理方法。 - 請求項12または請求項13に記載の管理方法において、
前記サービス提供装置が管理する、該サービス提供装置がサービスを提供している移動通信端末に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に付与されたASN-GW識別情報とを対応付けたMS管理情報を、前記サービス提供装置から所定のタイミングで取得するステップと、
前記MS管理情報に基づいて前記処理対応付け情報を作成するステップと、
前記処理対応付け情報を前記管理テーブルに格納するステップとを有することを特徴とする管理方法。 - 無線基地局を介して無線通信機能を具備した移動通信端末に対して複数のサービスを提供する複数のサービス提供装置を管理する管理装置に、
前記複数のサービス提供装置のいずれかがサービス停止状態にあるか否かを検出する手順と、
前記サービス停止状態になったサービス提供装置以外のサービス提供装置に対して前記サービス停止状態になったサービス提供装置がサービスを提供していた移動通信端末のリソースの解放を指示する手順とを実行させるためのプログラム。 - 請求項15に記載のプログラムにおいて、
前記移動通信端末に固有に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に固有に付与されたASN-GW識別情報とを対応付けた処理対応付け情報を当該管理装置が具備する管理テーブルに格納する手順と、
前記サービス提供装置がサービス停止状態にあるかどうかを監視する手順と、
サービス停止状態にあると認識されたサービス提供装置に付与されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索する手順と、
前記検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索する手順と、
前記検索されたMS識別情報が付与された移動通信端末のリソースを解放する指示である解放指示信号を作成する手順と、
前記解放指示信号を前記検索されたASN-GW識別情報が付与されたサービス提供装置へ送信する手順とを当該管理装置に実行させるためのプログラム。 - 請求項16に記載のプログラムにおいて、
前記サービス提供装置から該サービス提供装置に付与されたASN-GW識別情報を含む障害発生信号が送信されてきた場合、前記障害発生信号から前記ASN-GW識別情報を抽出する手順と、
前記抽出されたASN-GW識別情報に基づいて、該ASN-GW識別情報と対応付けられたMS識別情報を前記管理テーブルの中から検索する手順と、
前記検索されたMS識別情報に基づいて該移動通信端末に対して前記サービス以外のサービスを提供しているサービス提供装置に付与されたASN-GW識別情報を前記管理テーブルの中から検索する手順とを当該管理装置に実行させるためのプログラム。 - 請求項16または請求項17に記載のプログラムにおいて、
前記サービス提供装置が管理する、該サービス提供装置がサービスを提供している移動通信端末に付与されたMS識別情報と、該移動通信端末に対して各サービスをそれぞれ提供しているサービス提供装置に付与されたASN-GW識別情報とを対応付けたMS管理情報を、前記サービス提供装置から所定のタイミングで取得する手順と、
前記MS管理情報に基づいて前記処理対応付け情報を作成する手順と、
前記処理対応付け情報を前記管理テーブルに格納する手順とを当該管理装置に実行させるためのプログラム。
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PCT/JP2009/056149 WO2009125679A1 (ja) | 2008-04-11 | 2009-03-26 | 通信システム、管理装置、管理方法およびプログラム |
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US (1) | US8380235B2 (ja) |
JP (1) | JP5062324B2 (ja) |
TW (1) | TWI418179B (ja) |
WO (1) | WO2009125679A1 (ja) |
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JP2008508795A (ja) * | 2004-07-29 | 2008-03-21 | モトローラ・インコーポレイテッド | 無線通信における接続障害に関連するコストを低減するために使用される方法及びシステム |
WO2008038384A1 (fr) * | 2006-09-28 | 2008-04-03 | Fujitsu Limited | Station de base radio pour un fonctionnement en dégénérescence de système de communication mobile lors d'un désastre et système de communication mobile |
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US7532568B1 (en) * | 2002-07-09 | 2009-05-12 | Nortel Networks Limited | Geographic redundancy for call servers in a cellular system based on a bearer-independent core network |
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- 2009-03-26 WO PCT/JP2009/056149 patent/WO2009125679A1/ja active Application Filing
- 2009-03-26 US US12/935,033 patent/US8380235B2/en not_active Expired - Fee Related
- 2009-04-07 TW TW098111546A patent/TWI418179B/zh not_active IP Right Cessation
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JP2008508795A (ja) * | 2004-07-29 | 2008-03-21 | モトローラ・インコーポレイテッド | 無線通信における接続障害に関連するコストを低減するために使用される方法及びシステム |
WO2008038384A1 (fr) * | 2006-09-28 | 2008-04-03 | Fujitsu Limited | Station de base radio pour un fonctionnement en dégénérescence de système de communication mobile lors d'un désastre et système de communication mobile |
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Publication number | Publication date |
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JP5062324B2 (ja) | 2012-10-31 |
US8380235B2 (en) | 2013-02-19 |
TW201001978A (en) | 2010-01-01 |
US20110028174A1 (en) | 2011-02-03 |
JPWO2009125679A1 (ja) | 2011-08-04 |
TWI418179B (zh) | 2013-12-01 |
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