Mobile switching center restart recovery procedure
First Claim
1. In a radio telecommunications network having a home location register (HLR) that maintains subscriber profiles for subscribers in the network and a mobile switching center (MSC) that maintains temporary subscriber records associated with subscribers roaming in the MSC'"'"'s service area, a method of recovering from a restart procedure in the MSC, said method comprising the steps of:
- maintaing the temporary subscriber records in the MSC during the restart procedure;
identifying temporary subscriber records that went through the restart procedure;
MSC identifying subscriber profiles in the HLR that failed attempts to update associated temporary subscriber records in the MSC during the restart procedure; and
updating only the identified temporary subscriber records from the identified subscriber profiles after the restart procedure is completed.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of recovering from a restart procedure in a mobile switching center (MSC) in a radio telecommunications network having a home location register (HLR) that maintains subscriber profiles and a MSC that maintains temporary subscriber records associated with the subscriber profiles in the HLR. The MSC maintains the temporary subscriber records in the MSC during the restart procedure, and flags each temporary subscriber record in the MSC that went through the restart. The HLR flags each subscriber profile in the HLR that fails an attempt to update an associated temporary subscriber record in the MSC during the restart procedure. When an access attempt is received in the MSC that requires use of a temporary subscriber record that is flagged, the MSC requests the HLR to send any changes to the flagged temporary subscriber record. The HLR then determines whether the subscriber profile associated with the flagged temporary subscriber record in the MSC is flagged in the HLR. If the subscriber profile is not flagged, the HLR sends a message to the MSC indicating that there are no changes to the flagged temporary subscriber record. However, if the subscriber profile in the HLR is flagged, the HLR sends to the MSC, the changes stored in the flagged profile which then update the flagged temporary subscriber record in the MSC. The flagged subscriber profile and the flagged temporary record are then reset.
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Citations
10 Claims
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1. In a radio telecommunications network having a home location register (HLR) that maintains subscriber profiles for subscribers in the network and a mobile switching center (MSC) that maintains temporary subscriber records associated with subscribers roaming in the MSC'"'"'s service area, a method of recovering from a restart procedure in the MSC, said method comprising the steps of:
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maintaing the temporary subscriber records in the MSC during the restart procedure; identifying temporary subscriber records that went through the restart procedure; MSC identifying subscriber profiles in the HLR that failed attempts to update associated temporary subscriber records in the MSC during the restart procedure; and updating only the identified temporary subscriber records from the identified subscriber profiles after the restart procedure is completed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a radio telecommunications network having a home location register (HLR) that maintains subscriber profiles and a mobile switching center (MSC) that maintains temporary subscriber records associated with roaming subscribers having subscriber profiles in the HLR, a method of recovering from a restart procedure in the MSC, said method comprising the steps of:
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maintaining the temporary subscriber records in the MSC during the restart procedure; flagging each temporary subscriber record in the MSC that went through the restart procedure; flagging each subscriber profile in the HLR that fails an attempt to update an associated temporary subscriber record in the MSC during the restart procedure; receiving an access attempt in the MSC that requires use of a temporary subscriber record that is flagged in the MSC; sending a message from the MSC to the HLR requesting any changes to the flagged temporary subscriber record in the MSC; determining in the HLR whether the subscriber profile associated with the flagged temporary subscriber record in the MSC is flagged in the HLR; sending from the HR to the MSC, the changes to the flagged temporary subscriber record in the MSC, upon determining that the associated subscriber profile in the HLR is flagged; sending a message from the HLR to the MSC indicating that there are no changes to the flagged temporary subscriber record in the MSC, upon determining that the associated subscriber profile in the HLR is not flagged; resetting the flagged temporary records in the MSC; and resetting the flagged subscriber profiles in the HLR, upon determining that the associated subscriber profile in the HLR is flagged.
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Specification