Abstract: In various embodiments, a method performed by a mobility management device, includes obtaining mobility information of a user equipment (UE). The method includes generating a predicted tracking area list for the UE based on the mobility information. The method includes transmitting, to the UE, a message including the predicted tracking area list to initiate a registration procedure based on the UE being out of a range of a plurality of tracking areas of the predicted tracking area list. The method includes based on identifying downlink data for the UE, performing a paging procedure in each of cells in the predicted tracking area list.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A downlink data transmission method of a mobility management entity (MME) in a wireless communication system is provided.

Abstract: A method for billing in a wireless communication system, according to an embodiment, includes: transmitting billing data to an upper entity; determining whether the billing data has been normally transmitted; and executing a supplementary operation based on a result of the determining.

Abstract: The present disclosure relates to a method and an apparatus for managing a PDN connection by inducing, by a node, a terminal to autonomously recover a failure situation or detecting the corresponding terminal when the terminal is not capable of generating or maintaining the PDN connection in a wireless communication system and the method of the present disclosure includes: detecting, by a node, a terminal in which a failure occurs in a PDN connection; and transmitting a detach request message to the terminal in which the failure occurs.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A downlink data transmission method of a mobility management entity (MME) in a wireless communication system is provided.

Abstract: The present disclosure relates to a method and an apparatus for managing a PDN connection by inducing, by a node, a terminal to autonomously recover a failure situation or detecting the corresponding terminal when the terminal is not capable of generating or maintaining the PDN connection in a wireless communication system and the method of the present disclosure includes: detecting, by a node, a terminal in which a failure occurs in a PDN connection; and transmitting a detach request message to the terminal in which the failure occurs.