Method and apparatus for attaching a tag to a packet for transmission
According to certain embodiments, a method by a wireless device is provided for mapping of application data packets onto bearers. The method includes associating at least one tag value with a bearer upon establishment of the bearer. A tag is attached to a packet when passing the packet to a lower layer. The packet is mapped onto the bearer, and a path to transmit the packet is selected.
1. A method for mapping of application data packets onto bearers, comprising:
upon establishment of a bearer, associating at least one tag value with the bearer, wherein a Vehicle-to-Anything (V2X) application triggers establishing the bearer, the bearer being a non-IP Evolved Packet System (EPS);
attaching, at an application layer, a tag to a packet for enabling packet differentiation when passing the packet to a lower layer;
mapping the packet onto the bearer based on the at least one tag value, wherein the tag is used to decide on which bearer the packet should be mapped; and
selecting which path to transmit the packet, wherein the tag is used for QoS differentiation and enforcement when the packet is transmitted.
2. The method of claim 1 , wherein the tag is attached at an application layer.
3. The method of claim 1 , wherein mapping the packet to the bearer comprises the lower layer using the tag value.
4. The method of claim 1 , wherein a QoS is associated with the bearer.
5. The method of claim 1 , wherein selecting which path to transmit the packet comprises selecting from a list of paths, the list of paths comprising a Uu path and a sidelink/PC5 path.
6. A UE comprising a processor and an interface, the processor and the interface coupled to one another, wherein the processor and interface are configured to:
upon establishment of a bearer, associate at least one tag value with the bearer, wherein a Vehicle-to-Anything (V2X) application triggers establishing the bearer, the bearer being a non-IP Evolved Packet System (EPS);
attach, at an application layer, a tag to a packet for enabling packet differentiation when passing the packet to a lower layer;
map the packet onto the bearer based on the at least one tag value, wherein the tag is used to decide on which bearer the packet should be mapped; and
select a path to transmit the packet, wherein the tag is used for QoS differentiation and enforcement when the packet is transmitted.
7. The UE of claim 6 , wherein the tag is attached at an application layer.
8. The UE of claim 6 , wherein mapping the packet to the bearer comprises the lower layer using the tag value.
9. The UE of claim 6 , wherein a QoS is associated with the bearer.
10. The UE of claim 6 , wherein selecting which path to transmit the packet comprises selecting from list of paths, the list of paths comprising a Uu path and a sidelink/PC5 path.