Jongtae Song

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This paper briefly reviews ITU-T recommendations associated with multi protocol label switch (MPLS) and Ethernet operation, administration, and maintenance (OAM). The broadband convergence network (BcN) architecture with a centralized network controller is introduced. An aggregation structure employing Ethernet, MPLS, and time division multiplexing (TDM)(More)
5G network architecture is actively discussed in 3GPP SA2 [6] where management of mobility level is one of the key study items. Mobility management of the previous generation defines seamless mobility for the always connected service without packet loss. 5G network designed to support the level of mobility based on the UE demands. This paper explains the(More)
Next Generation Networks (NGN) is defined as a set of multi-access, multi-transport, multi-service packetbased networks. There exists a variety of Quality of Service (QoS) architectures within NGN, therefore it is common to aggregate and de-aggregate flows at the boundaries of networks. A key question arises regarding the network performance is therefore(More)
Existing Internet has problem in many areas such as reliability, service availability, and manageability. Active research has been done to solve this problem. In Korea, BcN was developed to solve the well known Internet problem and to achieve the fixed-mobile convergence services. This paper explains the philosophy and design principles of BcN architecture.(More)
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