METHOD FOR GUARANTEEING QUALITY OF SERVICE BETWEEN WIRE COMMUNICATION NETWORKS AND WIRELESS COMMUNICATION NETWORKS BY USING SWITCHING FUNCTION OF COMMUNICATION PROTOCOL STACK, TERMINAL DEVICES AND RECORDING MEDIUM

摘要

An apparatus for guaranteeing quality of service between wireline and wireless communication networks and a recording medium are provided to improve communication reliability and communication performance of the communication networks by using a logical switching control layer arranged on communication protocol stacks. A switching unit(180) logically switches between a first lower protocol layer, which corresponds to at least one of wireline communications protocols, and a second lower protocol layer, which corresponds to a wireless communication protocol. A QoS(Quality of Service) monitoring unit(160) monitors a QoS of one communication network from the wireline and wireless communication networks. A communication network checking unit(165) detects a second communication network, to which a terminal is connected, and/or a QoS of the second communication network. A communication network switching unit(170) uses a logical switching control layer to switch between the first and second communication networks. A protocol controller(175) checks the QoS of at least two communication networks and selects a communication protocol for the communication network switching unit.