A communication method and a 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) are provided. The 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. The disclosure relates to schemes for improving an operation of a terminal in an RRC inactive mode.

This application provides a session handling method, a communications apparatus, and a communications system. The session handling method includes receiving, by an intermediate session management function (SMF), a request message sent by an access and mobility management function (AMF), where the request message includes a session identifier, and the intermediate SMF is an SMF selected by the AMF when user equipment (UE) moves outside of a service area of an anchor SMF. When a session corresponding to the session identifier is a local area data network (LADN) session, rejecting, by the intermediate SMF, the session corresponding to the session identifier. According to the technical solutions provided in this application, the user equipment can no longer access a service of a LADN after moving outside of the service area of the anchor SMF, which avoids a waste of service resources of the LADN.

A network function is configured to initiate a bulk session cleanup with a single release request. The network function detects a configuration change to a wireless network system that affects multiple user sessions for multiple user devices. The network function generates a single bulk session release request identifying the affected user sessions and provides the single bulk session release request to at least one other network function responsible for the user sessions.

A method for providing a service by a transparent internet cache (TIC) server in a communication network supporting a multipath transport control protocol (MPTCP) is provided. The method includes establishing an MPTCP connection with a user equipment (UE) and an original server through a first network, upon receiving a service provision request from the UE, releasing the MPTCP connection established among the TIC server, the UE, and the original server if data related to a service corresponding to the service provision request is cached, and providing the service corresponding to the service provision request to the UE.

A user device operates a first data session using a first network slice. The user device obtains a trigger notification from a remote application that identifies a second network slice, and the user device determines that the first network slice and the second network slice are mutually exclusive. The user device ends the first data session on the first network slice and initiates a second data session on the second network slice.

A method, a device, and a non-transitory storage medium are described in which a network slice selection service is provided. The service may include using route selection policies that includes radio frequency criteria for selection of a network slice. The service may include establishing an application session based on the route selection policies. The service may further include determining that a radio frequency of the network slice cannot be sustained. The service may include executing an application session release procedure and an application session establishment procedure. The procedures may include using cause data and context data pertaining to the initial application session to re-establish the application session via a different network slice and a different radio frequency based on the route selection policies.

A node may forward, from a base station to a first UE, or from the first UE to the base station, one or more wireless signals. The node may identify an indication to stop signal forwarding to the first UE. The indication may be based on a level of an interference to a second UE associated with the signal forwarding to the first UE being greater than a first threshold. The level of the interference to the second UE may be based on a path gain difference or a signal strength at the first UE associated with the signal forwarding to the first UE. The signal strength at the first UE associated with the signal forwarding to the first UE may correspond to an RSRP at the first UE. The node may stop the signal forwarding to the first UE based on the indication.

A node may forward, from a base station to a first UE, or from the first UE to the base station, one or more wireless signals. The node may identify an indication to stop signal forwarding to the first UE. The indication may be based on a level of an interference to a second UE associated with the signal forwarding to the first UE being greater than a first threshold. The level of the interference to the second UE may be based on a path gain difference or a signal strength at the first UE associated with the signal forwarding to the first UE. The signal strength at the first UE associated with the signal forwarding to the first UE may correspond to an RSRP at the first UE. The node may stop the signal forwarding to the first UE based on the indication.

A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a service through an MBMS session. The apparatus receives a first notification of an upcoming suspension of the MBMS session. The apparatus requests establishment of a unicast bearer prior to the upcoming suspension of the MBMS session upon receiving the first notification. The apparatus receives a corresponding unicast version of the service of the MBMS session via unicast when the unicast bearer is established. In an aspect, the first notification may be received during a first MCCH modification period, the corresponding unicast version of the service is received via unicast during a second MCCH modification period. In an aspect, the apparatus may further receive a second notification that the MBMS session is suspended during the second MCCH modification period.

Disclosed are an overload control method in a wireless communication system and a device for the same. Specifically, a method by which a base station performs an overload control in a wireless communication system can include: a step of receiving an overload start message from a core network; a step of receiving a first radio resource control (RRC) message including a non-access stratum (NAS) message from user equipment (UE); and a step of transmitting an RRC connection release message, for instructing the release of an RRC connection, to the UE when an instruction for instructing data transmission through a control plane in the first RRC message is included.