Recovery techniques in mobile networks
View Patent ↗A technique for protecting location information of a subscriber in a mobile network is disclosed which forwards a registration request from the subscriber to an S-CSCF including the subscriber's TA and then forwarding a location update from the S-CSCF to an HSS including the subscriber's TA. Upon the S-CSCF losing data, lost data may be restored to the S-CSCF from the data stored in the HSS. The HSS may store data in a non-volatile memory such as a hard disk drive. The technique may also include forwarding a registration request from the subscriber to an S-CSCF including the subscriber's TA and then forwarding a location update from the S-CSCF to an HSS and storing data in a non-volatile memory such as a hard disk drive in the S-CSCF so as to be protected against loss. Upon the S-CSCF losing data, lost data including the subscriber's TA may be restored to the S-CSCF from the data stored in the S-CSCF.
1. A method comprising:
receiving, at a Serving-Call State Control Function (S-CSCF), a registration request from a subscriber in a mobile network, wherein the registration request comprises a Transport Address (TA) of the subscriber;
providing the TA and an address of the S-CSCF to a Home Subscription Server (HSS) for storage at the HSS; and
receiving the TA from the HSS in response to a loss of the TA by the S-CSCF such that the TA is restored at the S-CSCF.
2. The method of claim 1 , wherein the TA is stored in a non-volatile memory of the HSS.
3. The method of claim 2 , wherein the non-volatile memory comprises a hard disk drive.
4. The method of claim 1 , wherein the TA of the subscriber comprises a current Care of Address of the subscriber.
5. A method comprising:
receiving, at a Serving-Call State Control Function (S-CSCF), a registration request from a subscriber, wherein the registration request comprises a Transport Address (TA), and further wherein the TA comprises a Care of Address of the subscriber;
storing the TA in a non-volatile memory of the S-CSCF; and
restoring the TA to the S-CSCF from the non-volatile memory in response to a loss of the TA by the S-CSCF.
6. The method of claim 5 , wherein the non-volatile memory comprises a hard disk drive.
7. A non-transitory program storage device readable by a machine, non-transmissible, tangibly embodying a program of instructions executable by the machine to cause the machine to:
receive, at a Serving-Call State Control Function (S-CSCF), a registration request from a subscriber, wherein the registration request comprises a Transport Address (TA) of the subscriber;
forward the TA of the subscriber and an address of the S-CSCF from the S-CSCF to a Home Subscription Server (HSS) such that the TA and the address of the S-CSCF are stored at the HSS; and
receive, from the HSS, the TA at the S-CSCF in response to a loss of the TA by the S-CSCF.
8. The program storage device of claim 7 , wherein the TA and the address of the S-CSCF are stored in a non-volatile memory of the HSS.
9. The program storage device of claim 8 , wherein the non-volatile memory comprises a hard disk drive.
10. A non-transitory program storage device readable by a machine, non-transmissible, tangibly embodying a program of instructions executable by the machine to cause the machine to:
receive, at a Serving-Call State Control Function (S-CSCF), a registration request from a subscriber, wherein the registration request comprises a Transport Address (TA) of the subscriber;
store the TA in a non-volatile memory at the S-CSCF; and
restore the TA to the S-CSCF from the non-volatile memory in response to a loss of the TA by the S-CSCF.
11. The program storage device of claim 10 , wherein the non-volatile memory comprises a hard disk drive.
12. A system comprising:
a first receiving unit configured to receive a registration request from a subscriber of a mobile network at a Serving-Call State Control Function (S-CSCF), wherein the registration request comprises a Transport Address (TA) of the subscriber;
a forwarding unit configured to forward the TA and an address of the S-CSCF from the S-CSCF to a Home Subscription Server (HSS) for storage; and
a second receiving unit configured to receive the TA from the HSS in response to a loss of the TA by the S-CSCF.
13. The system of claim 12 , wherein the first receiving unit comprises the second receiving unit.