Method and devices for specifying the quality of service in a transmission of data packets
A service class for a transmission of data packets between a service entity and a user equipment is selected from a plurality of service classes. A first transmission context is established between a core network node and the user equipment, and is associated with a first set of attributes for defining a first quality of service for the transmission. Furthermore, a second transmission context is established between an access node and the user equipment, and is associated with a second set of attributes for defining a second quality of service for 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.
1. A radio node for establishing a transmission context for transmission of data packets between a service entity and the radio node over a mobile network, wherein the radio node comprises:
an input circuit configured to receive, from a Policy and Charging Function (PCRF), a set of quality of service parameters for a transmission context to be established with the radio node; and
a processor and a memory, wherein the memory contains instructions executable by the processor whereby the radio node is configured to:
map the set of quality of service parameters to a further set of quality of service parameters; and
establish the transmission context with the radio node according to the further set of quality of service parameters for defining a quality of service for an exchange of the data packets with the radio node in the transmission.
2. The radio node according to claim 1 , wherein the transmission context is a Packet Data Protocol (PDP) context.
3. The radio node of claim 1 , wherein the transmission context represents different transmission flows multiplexed together, wherein at least two of the transmission flows have different quality of service requirements.
4. The radio node of claim 1 , wherein the set of quality of service parameters is specific for a transmission context of a specific bearer.
5. The radio node of claim 1 , wherein the input circuit is configured to receive the set of quality of service parameters as part of a Packet Data Protocol (PDP) context set up.
6. The radio node of claim 1 , wherein the set of quality of service parameters is indicated by a numerical indicator indicating a service class identifier.
7. The radio node of claim 1 , wherein the mobile network comprising a core network node and an access node.
8. A method for establishing a transmission context for a transmission of data packets between a service entity and a radio node over a mobile network, the method comprising:
receiving, by the radio node, from a Policy and Charging Rules Function (PCRF), a set of quality of service parameters for a transmission context to be established with the radio node;
mapping, by the radio node, the set of quality of service parameters to a further set of quality of service parameters; and
establishing, by the radio node, the transmission context with the radio node according to the further set of quality of service parameters for defining a quality of service for an exchange of the data packets with the radio node in the transmission.
9. The method of claim 8 , wherein the transmission context is a Packet Data Protocol (PDP) context.
10. The method of claim 8 , wherein the transmission context represents different transmission flows multiplexed together, wherein at least two of the transmission flows have different quality of service requirements.
11. The method of claim 8 , wherein the set of quality of service parameters is specific for a transmission context of a specific bearer.
12. The method of claim 8 , wherein the receiving comprises receiving the set of quality of service parameters as part of a Packet Data Protocol (PDP) context set up.
13. The method of claim 8 , wherein the set of quality of service parameters is indicated by a numerical indicator indicating a service class identifier.
14. The method of claim 8 , wherein the mobile network comprising a core network node and an access node.