Wireless communication system and method for managing service flow identifier in the same
First Claim
1. A wireless communication system comprising:
- a plurality of radio access stations (RASs) for controlling a plurality of portable subscriber stations (PSSs) in a radio network; and
a plurality of access control routers (ACRs) for providing wireless communication services to the PSSs through the plurality of RASs, and respectively managing service flow identifiers used for identifying a connection service for each PSS,wherein when a status of each service flow identifier managed by the plurality of ACRs is different, the wireless communication system releases the corresponding service flow identifier so as to set the status of each of the service flow identifiers managed by the ACRs to be the same.
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Abstract
The present invention relates to a wireless communication system and a service flow identifier management method thereof. The wireless communication system includes a plurality of RASs for controlling a plurality of PSSs in a radio network, and a plurality of ACRs for providing wireless communication services to the PSSs through the plurality of RASs, and respectively managing a service flow identifier used for identifying a connection service for each PSS. When a status of each service flow identifier managed by the plurality of ACRs is different, the wireless communication system releases the corresponding service flow identifier so as to set the status of each of the service flow identifiers to be the same. According to the present invention, in the wireless communication system, the plurality of ACRs separately manage service flow identifiers, and mismatched service flow identifier information due to errors in the system or a node or message transmission/receiving errors can be set to be the same. In addition, when a partial system error occurs and thus the system is restored, a service flow identifier not having the same status due to the error can be efficiently released and set to be the same.
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Citations
27 Claims
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1. A wireless communication system comprising:
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a plurality of radio access stations (RASs) for controlling a plurality of portable subscriber stations (PSSs) in a radio network; and a plurality of access control routers (ACRs) for providing wireless communication services to the PSSs through the plurality of RASs, and respectively managing service flow identifiers used for identifying a connection service for each PSS, wherein when a status of each service flow identifier managed by the plurality of ACRs is different, the wireless communication system releases the corresponding service flow identifier so as to set the status of each of the service flow identifiers managed by the ACRs to be the same. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for managing a service flow identifier, the method comprising:
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when a home access control router (ACR) that provides wireless communication services to a portable subscriber station (PSS) through a radio access station (RAS) is initialized, determining whether the home ACR is restarted in an error state; and when it is determined that the home ACR is restarted in the error state, deleting a service flow identifier of a PSS located in a service area of the home ACR, wherein the service flow identifier is used for identifying a connection service for a PSS. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for managing a service flow identifier, the method comprising:
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receiving, by a home access control router (ACR), a request for releasing a service flow identifier allocated by another ACR, the ACR providing wireless communication services to a portable subscriber station (PSS) through a radio access station (RAS); setting a response waiting timer for setting a response waiting time; storing information on a service flow identifier allocated by the other ACR; and requesting release of the service flow identifier from the other ACR. - View Dependent Claims (23, 24)
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25. A method for managing a service flow identifier, the method comprising:
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receiving, by a home access control router (ACR), a deregistration request from a portable subscriber station (PSS), the ACR providing wireless communication services to the PSS through a radio access station (RAS); setting a response waiting timer for setting a response waiting time; storing information on a service flow identifier of the PSS; and requesting release of the service flow identifier from another ACR allocating the service flow identifier of the PSS. - View Dependent Claims (26, 27)
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Specification