Mapping selective DSCP values to GTP-U

Abstract

An apparatus and a method are provided by which a packet is received, a service identification in the packet is detected, it is decided based on the detected service identification whether a tunnel protocol extension header is to be generated or not, and, when the tunnel protocol extension header is to be generated, the tunnel protocol extension header is generated, the received packet is encapsulated with the generated tunnel protocol extension header and the encapsulated packet is forwarded.

1 . An apparatus comprising
 an interface unit configured to provide connection to a network, and   a processor configured   to receive a packet via the interface unit,   to detect whether the packet relates to a specific application, and   when it is detected that the packet relates to the specific application, to insert a service identification in the packet based on the application,   wherein a list including a plurality of specific applications and service indications associated with each of the specific applications is provided, and the processor is configured to insert the service identification in the packet by referring to the list.   
     
     
         2 . The apparatus according to  claim 1 , wherein the specific application is a predefined application which requires special treatment such as providing a specific bandwidth, a specific data rate, a specific quality of service class, resource reservation for a specific duration, and/or a specific routing for the packet. 
     
     
         3 . The apparatus according to  claim 1 , wherein the apparatus is provided in transport detection function network element or in a gateway. 
     
     
         4 . A method comprising
 receiving a packet,   detecting whether the packet relates to a specific application, and,   when it is detected that the packet relates to the specific application, inserting a service identification in the packet based on the application,   wherein a list including a plurality of specific applications and service indications associated with each of the specific applications is provided, and the method further comprises   inserting the service identification in the packet by referring to the list.   
     
     
         5 . The method according to  claim 4 , wherein the specific application is a predefined application which requires special treatment such as providing a specific bandwidth, a specific data rate, a specific quality of service class, resource reservation for a specific duration, and/or a specific routing for the packet.