Intersystem change involving mapping between different types of radio bearers

摘要

A packet data core network node and methods supporting packet data communication are disclosed. In one embodiment, a packet date core network node in a first core network comprises a first communication mechanism for control plane handling and mobility management, a second communication mechanism for user plane management and a mechanism for communication with a dual mode mobile terminal over a first radio network. The packet data core network node comprises or communicates with a mapping function for mapping between first radio bearers used in the first core and radio networks and second radio bearers of a type different from the type of the first radio bearers and used in a second core radio network at handover of a dual mode mobile terminal from the first core network to the second core network or vice versa. Another embodiment is a dual mode mobile terminal including such mapping function.

主权项

1. 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.