Method and system for session authorization by an online charging system in a wireless network utilizing a service capability exposure function

An electronic device to be deployed in a wireless network, comprising:

• a processor and computer-readable storage medium that provides instructions that, when executed by the processor, cause the electronic device to perform:
• receiving a request message for resources to set up a session with a terminal device, the request message being sent from a core network interface to an online charging function (OCF), and the request message including a large file indication indicating that the session includes at least one of a large file to be transferred during the session or a long session duration;
• the core network interface being coupled to a service capability exposure function (SCEF), the SCEF being configured to generate the request message and to send the request message to the OCF;
• determining that the terminal device has enough credit for the session based on the request message;
• and
• granting the resources for the session with the terminal device based on the determination.

A non-transitory computer-readable storage medium that provides instructions that, when executed by a processor of an electronic device, cause the processor to perform:

• receiving a request message for resources to set up a session with a terminal device, the request message being sent from a core network interface to an online charging function (OCF), and the request message including a large file indication indicating that the session includes at least one of a large file to be transferred during the session or a long session duration;
• the core network interface being coupled to a service capability exposure function (SCEF), the SCEF being configured to generate the request message and to send the request message to the OCF;
• determining that the terminal device has enough credit for the session based on the request message;
• and
• granting the resources for the session with the terminal device based on the determination.