QoS COMMUNICATION METHOD AND APPARATUS BASED ON QOS IN NETWORK SLICE-BASED MOBILE COMMUNICATION NETWORK

摘要

Disclosed are a communication method and an apparatus thereof based on QoS in a network slice-based mobile communication network. The disclosed communication method of the communication apparatus: determines whether a first sum of the usage network slice bitrate (NSB) of a network slice corresponding to a requested SDF and a bitrate of a service data flow (SDF) requested from a PDN exceeds a reference NSB allocated to a network slice; determines whether a second sum of the first usage session bitrate of an access point network (APN) corresponding to the requested SDF and the bitrate of the requested SDF exceeds a first reference SB allocated to the APN when the first sum does not exceeds the reference NSB; determines whether a third sum of the second usage SB of a packet data unit (PDU) flow corresponding to the requested SDF and the bitrate of the requested SDF exceeds a second reference SB allocated the PDU flow when the second sum does not exceed the first reference SB; and processes the requested SDF so that the quality of the requested SDF is guaranteed to be equal to or more than a predetermined level when the third sum does not exceed the second reference SB. The present invention allows a subscriber to easily use high quality of mobile communication service.