Patent ID: 8917698

Claim:
A packet data core network node for supporting packet data communication, comprising: first communication means for control plane handling and mobility management; second communication means for user plane management; means for communication with dual mode mobile terminals over a first radio network; and, a mapping function for mapping between first radio bearers used in said first radio network and a first core network and second radio bearers of a type different from a type of said first radio bearers and used in a second radio network and a second core network, the mapping occurring at handover of ones of said dual mode mobile terminals between the first core network and the second core network, the mapping function comprising: a first repository for holding first bearer mapping rules for mapping system architecture evolution/long term evolution, SAE/LTE, labels onto 2G/3G traffic classes; and, a second repository for holding second bearer mapping rules for mapping 2G/3G traffic classes onto SAE/LTE labels.