Method of providing MTC monitoring related information
The present disclosure presents a method of providing information by a subscriber information server for machine type communication (MTC) monitoring. The method may include: receiving information on a monitoring related timer for any MTC device from an MTC related server; adjusting one of the monitoring related timer and a periodic access or location update related timer based on the other timer when there is information on the periodic access or location update related timer for the MTC device; and transmitting information on the adjusted timer to the MTC related server or a monitoring node.
1. A method for adjusting a timer value for a device, the method comprising:
receiving, by a home subscribing server (HSS) from an application server (AS), information on a maximum time period;
setting, by the HSS, a timer value for a routing area update (RAU) or a tracking area update (TAU) to a smaller value than the maximum time period,
wherein the maximum time period is related to a loss of a connectivity indicating the device is no longer possible to be signaled; and
delivering, by the HSS, information regarding the timer value set for the RAU or the TAU to a Mobility Management Entity (MME)/Serving General Packet Radio Service (GPRS) Supporting Node (SGSN).
2. The method of claim 1 , wherein the timer value for the RAU or the TAU includes one or more of:
a T3312 value for the RAU;
a T3312 extended value for the RAU;
a T3412 value for the TAU; and
a T3412 extended value for the TAU.
3. The method of claim 1 , wherein the maximum time period is for transmitting an event to the AS.
4. The method of claim 1 , wherein the setting of the timer value for the RAU or the TAU includes considering one or more of:
subscriber information;
capability information or priority information of a Machine Type Communication (MTC) device;
operator policy information;
MTC monitoring related information;
information acquired from another node;
network status information;
information associated with a mobility management related operation; and
information association with a session management related operation.
5. The method of claim 1 , wherein the AS is a Machine Type Communication-InterWorking Function (MTC-IFW) or a service capability server.
6. A home subscription server (HSS) for adjusting a timer value for a device, the HSS comprising:
a transceiver configured to receive, from an application server (AS), information on a maximum time period; and
a processor configured to set a timer value for a routing area update (RAU) or a tracking area update (TAU) to a smaller value than the maximum time period,
wherein the maximum time period is related to a loss of a connectivity indicating the device is no longer possible to be signaled, and
wherein the transceiver delivers information regarding the timer value set for the RAU or the TAU to a Mobility Management Entity (MME)/Serving General Packet Radio Service (GPRS) Supporting Node (SGSN).
7. The HSS of claim 6 , wherein the timer value for the RAU or the TAU includes one or more of:
a T3312 value for the RAU;
a T3312 extended value for the RAU;
a T3412 value for the TAU; and
a T3412 extended value for the TAU.
8. The HSS of claim 6 , wherein the maximum time period is for transmitting an event to the AS.
9. The HSS of claim 6 , wherein the processor sets the timer value for the RAU or the TAU by considering one or more of:
subscriber information;
capability information or priority information of a Machine Type Communication (MTC) device;
operator policy information;
MTC monitoring related information;
information acquired from another node;
network status information;
information associated with a mobility management related operation; and
information association with a session management related operation.
10. The HSS of claim 6 , wherein the AS is a Machine Type Communication-InterWorking Function (MTC-IFW) or a service capability server.
11. The method of claim 1 , wherein the HSS stores a Machine Type Communication (MTC) server identifier (ID).
12. The method of claim 1 , wherein the device is a Machine Type Communication (MTC) device.
13. The HSS of claim 6 , wherein the HSS stores a Machine Type Communication (MTC) server identifier (ID) for a reporting destination of a monitoring event.
14. The HSS of claim 6 , wherein the device is a Machine Type Communication (MTC) device.
15. The method of claim 1 , wherein after the maximum time period lapses, the loss of the connectivity is identified.
16. The HSS of claim 6 , wherein after the maximum time period lapses, the loss of the connectivity is identified.