Granular network access control and methods thereof
A method and system that enhances the existing access barring mechanism as specified in the current 3GPP specification is disclosed. The method disclosed provides enhancing the access barring mechanism to accommodate application level barring between the User equipment (UE) and the network. The method disclosed individually restricts or permits access of network to every requesting application on the UE, based on granular category of the application and priority levels of the application within the granular category. The method disclosed also specifies handling of back-off timers; reject cause values and Access Point Name (APN) configuration by Access Stratum (AS) and Non Access Stratum (NAS) layer to support application level barring of UEs using the enhanced access barring mechanism. The enhanced access barring mechanism enables providing service to applications independent of other barred applications or priorities. The method disclosed provides a mechanism for access control for connected mode UEs.
1. A method by a terminal, the method comprising:
receiving access information including a barring indication and a value of a timer from a network;
identifying, if a service request for an application is triggered, a category of the application;
identifying whether the category of the requested application belongs to a barred category included in the access information;
stopping, if the category of the application belongs to the barred category, the service request for the application until the timer is expired; and
proceeding, if the category of the application does not belong to the barred category, the service request for the application.
2. The method of claim 1 , further comprising:
deactivating the application until the timer is expired, if the category of the application belongs to the barred category and the application is running.
3. The method of claim 1 , wherein the category includes at least one of an application category, a traffic category, a quality of service (QoS) category, a logical channel group category, a bearer type category, or a priority level category.
4. The method of claim 1 , wherein the value of the timer is determined based on a priority level of the category of the application.
5. The method of claim 1 , further comprising:
mapping each application in the terminal to the barred category; and
processing the service request for the application if the category of the application is not included in the barred category.
6. The method of claim 1 , wherein the access information is included in at least one of a system information message (SIB), a radio resource control (RRC) message, or a random access channel (RACH) reject message.
7. The method of claim 1 , wherein the service request is transmitted via at least one of an explicit service request message, a packet data network (PDN) connectivity request, a bearer resource modification request, a scheduling request (SR), a buffer status report (BSR) message or a bearer resource allocation request.
8. A terminal comprising:
a transceiver configured to receive and transmit a signal; and
at least one processor configured to:
receive access information including a barring indication and a value of a timer from a network,
identify, if a service request for an application is triggered, a category of the application,
identify whether the category of the application belongs to a barred category included in the access information,
stop, if the category of the application belongs to the barred category, the service request for the application until the timer is expired, and
proceed, if the category of the application does not belong to the barred category, the service request for the application.
9. The terminal of claim 8 , wherein the at least one processor is further configured to deactivate the application until the timer is expired if the category of the application belongs to the barred category and the application is running.
10. The terminal of claim 8 , wherein the category includes at least one of an application category, a traffic category, a quality of service (QoS) category, a logical channel group category, a bearer type category, or a priority level category.
11. The terminal claim 8 , wherein the value of the timer is determined based on a priority level of the category of the application.
12. The terminal of claim 8 , wherein the at least one processor is further configured to:
map each application in the terminal to the barred category, and
process the service request for the application if the category of the application is not included in the barred category.
13. The terminal of claim 8 , wherein the access information is included in at least one of a system information message (SIB), a radio resource control (RRC) message, a random access channel (RACH) reject message, a buffer status report (BSR) message, or a scheduling request (SR) message.
14. The terminal of claim 8 , wherein the service request is transmitted via at least one of an explicit service request message, a packet data network (PDN) connectivity request, a bearer resource modification request, a scheduling request (SR), a buffer status report (BSR) message, or a bearer resource allocation request.