Techniques that provide low latency traffic segregation to ensure an edge user plane (UP) is not overloaded are described herein in at least one embodiment. In at least one embodiment, a method may include determining offload of low latency traffic of a user equipment (UE) at a mobile network edge, wherein the UE has non-low latency traffic associated with a first packet data network session for an access point name; notifying the UE to request creation of a second packet data network session for the access point name; selecting an edge UP element to handle the low latency traffic for the second packet data network session; creating the second packet data network session at the selected edge UP element; and notifying the UE that second packet data network session is created.

Systems described herein provide techniques for establishing and modifying user plane communications sessions between Long-Term Evolution (“LTE”) User Equipment (“UE”) devices, connected to LTE base stations, and a Fifth Generation (“5G”) core network. An LTE-5G Interworking function (“LTE-5G IWF”) may logically generate a virtual 5G UE and/or 5G base station, map a LTE UE to the virtual 5G UE, and cause the establishment of a Protocol Data Unit (“PDU”) Session, at the 5G core network, with the virtual 5G UE. The LTE-5G IWF may provide PDU Session information to the LTE UE and base station to facilitate the establishment of user plane communications (e.g., via a tunnel) between the LTE UE and the 5G core network. The LTE-5G IWF may also receive modification parameters, such as Quality of Service (“QoS”) parameters, and provide instructions to the 5G core and/or to the LTE UE to handle traffic according to such parameters.

Systems described herein provide techniques for establishing and modifying user plane communications sessions between Long-Term Evolution (“LTE”) User Equipment (“UE”) devices, connected to LTE base stations, and a Fifth Generation (“5G”) core network. An LTE-5G Interworking function (“LTE-5G IWF”) may logically generate a virtual 5G UE and/or 5G base station, map a LTE UE to the virtual 5G UE, and cause the establishment of a Protocol Data Unit (“PDU”) Session, at the 5G core network, with the virtual 5G UE. The LTE-5G IWF may provide PDU Session information to the LTE UE and base station to facilitate the establishment of user plane communications (e.g., via a tunnel) between the LTE UE and the 5G core network. The LTE-5G IWF may also receive modification parameters, such as Quality of Service (“QoS”) parameters, and provide instructions to the 5G core and/or to the LTE UE to handle traffic according to such parameters.

This application discloses a service processing method for a proximity service, a device, and a system, and relates to the field of wireless communication technologies, to resolve a problem such as inappropriate charging caused because a network side does not perform, in proximity service (ProSe) communication, service supervision or service management on a data packet transmitted by remote user equipment (UE) via relay UE. In this application, a first network element (for example, an access and mobility management function AMF network element or a session management function SMF network element) may obtain, based on relay information that is received from the remote UE and that includes a relay service code or first indication information indicating that the remote UE is to transmit a service in relay mode, policy configuration information for detecting or monitoring service data forwarded by the relay UE.

A communication method, an apparatus, and a system in which a first session management function entity based on information of a terminal group determines user plane function entities accessed by terminals in a terminal group, and the first session management function entity determines a target user plane function entity based on the user plane function entities, where the target user plane function entity is used to perform communication between terminals in the terminal group. According to the method, the terminals in the terminal group are redirected to a same user plane function entity, namely, the target user plane function entity, so that communication between the terminals in the terminal group is locally implemented in the target user plane function entity. This shortens a communication path, and reduces a communication latency.

A communication method, an apparatus, and a system in which a first session management function entity based on information of a terminal group determines user plane function entities accessed by terminals in a terminal group, and the first session management function entity determines a target user plane function entity based on the user plane function entities, where the target user plane function entity is used to perform communication between terminals in the terminal group. According to the method, the terminals in the terminal group are redirected to a same user plane function entity, namely, the target user plane function entity, so that communication between the terminals in the terminal group is locally implemented in the target user plane function entity. This shortens a communication path, and reduces a communication latency.

A data transmission method, apparatus, device, and a computer-readable storage medium are provided. The data transmission method of the present disclosure includes receiving data sent by a User Equipment UE, determining a Session Management Function SMF, and forwarding the data to the SMF, wherein after the SMF receives the data, the SMF forwards the data to a User Plane Function UPF.

A data transmission method, apparatus, device, and a computer-readable storage medium are provided. The data transmission method of the present disclosure includes receiving data sent by a User Equipment UE, determining a Session Management Function SMF, and forwarding the data to the SMF, wherein after the SMF receives the data, the SMF forwards the data to a User Plane Function UPF.

A communication method performed by a user equipment (UE) in a mobile communication system, according to an embodiment, includes: transmitting, to an access and mobility management function (AMF) or a session management function (SMF), UE capability information including first information about whether or not extended session management is supported; receiving from the AMF or the SMF network capability information including second information about whether or not the extended session management is supported; and receiving, from the AMF or the SMF, a result of mapping a protocol data unit (PDU) session to an evolved packet system (EPS) bearer, performed based on the first information and the second information.

A communication method performed by a user equipment (UE) in a mobile communication system, according to an embodiment, includes: transmitting, to an access and mobility management function (AMF) or a session management function (SMF), UE capability information including first information about whether or not extended session management is supported; receiving from the AMF or the SMF network capability information including second information about whether or not the extended session management is supported; and receiving, from the AMF or the SMF, a result of mapping a protocol data unit (PDU) session to an evolved packet system (EPS) bearer, performed based on the first information and the second information.