Method and Devices for Specifying the Quality of Service in a Transmission of Data Packets

摘要

A method for specifying the quality of service in a transmission of data packets between a service entity (AF1) and a user equipment over a mobile network is described. The mobile network comprises a core network node (SGSN1) and an access node (NB1, RNC1) which are adapted to control the handling of data packets sent between the service entity (AF1) and the user equipment (UE1). A plurality of service classes relating to the quality of service are preconfigured and a selected service class is selected from said plurality for the transmission. A first transmission context (PDP1) is established between the core network node and the user equipment (UE1), said first transmission context being associated with a first set of attributes for defining a first quality of service for the exchange of the data packets with the user equipment in the transmission. Furthermore, a second transmission context (RAB1, RB1) is established between the access node (NB1, RNC1) and the user equipment (UE1), said second transmission context being associated with a second set of attributes for defining a second quality of service for the exchange of the data packets with the user equipment in the transmission. The selected service class determines the first set of attributes by a first unique mapping function performed in the core network node and the selected service class determines the second set of attributes by a second unique mapping function performed in the access node. A corresponding mobile network, control device and computer program are also described.

主权项

1. A method implemented by a control device for specifying a quality of service in a transmission of data packets between a service entity and a user equipment over a mobile network comprising a core network node and an access node which are adapted to control the handling of the data packets sent between the service entity and the user equipment, wherein the method comprises:
receiving a set of attributes for a transmission context to be established with the user equipment, wherein the set of attributes encodes a selected service class, wherein the selected service class was selected for the transmission context prior to receipt of the set of attributes and was selected from a plurality of service classes preconfigured in the mobile network, determining the selected service class from the received set of attributes using a unique mapping function, determining a further set of attributes for the selected service class, using the unique mapping function that maps said set of attributes for the determined selected service class to said further set of attributes of a plurality of preconfigured further sets of attributes, and establishing the transmission context with the user equipment according to the further set of attributes for defining a quality of service for an exchange of the data packets with the user equipment in the transmission.