Integration of radio and core layers
A method, a device, and a non-transitory storage medium are described in which a radio and core integrated layers service is provided. The service provides a direct mapping of a quality of service flow between a packet data unit layer and a service data adaptation layer associated with a user plane function and a central unit-user plane function without an intermediary mapping of a tunneling protocol in the user plane.
1. A method comprising:
receiving, by a network device, a message pertaining to an establishment of a packet data unit (PDU) session;
selecting, by the network device based on the message, a user plane function and a central unit-user plane function; and
mapping, by the user plane function and the central unit-user plane function, a quality of service flow to the PDU session directly with a radio bearer and without an intermediary mapping of a user plane tunnel.
2. The method of claim 1 , wherein the mapping comprises mapping the quality of service flow between a PDU layer and a Service Data Adaptation Protocol (SDAP) layer.
3. The method of claim 1 , wherein the message includes collocation guidance information indicating to use direct mapping between a PDU layer and a Service Data Adaptation Protocol (SDAP) layer.
4. The method of claim 1 , further comprising:
determining, by the network device based on the message, whether the quality of service flow is mapped or not mapped to the user plane tunnel.
5. The method of claim 1 , wherein the user plane tunnel includes a General Packet Radio Service Tunneling Protocol User Plane (GTP-U) tunnel.
6. The method of claim 1 , wherein the user plane tunnel is for uplink and downlink user plane data.
7. The method of claim 1 , further comprising:
transmitting, by the network device after the mapping, downlink user plane data of the quality of service flow to a distributed unit-user plane function.
8. The method of claim 1 , further comprising:
transmitting, by the network device after the mapping, uplink user plane data of the quality of service flow to a data network.
9. A network device comprising:
a processor configured to:
receive a message pertaining to an establishment of a packet data unit (PDU) session;
select, based on the message, a user plane function and a central unit-user plane function; and
map, by the user plane function and the central unit-user plane function, a quality of service flow to the PDU session directly with a radio bearer and without an intermediary mapping of a user plane tunnel.
10. The network device of claim 9 , wherein the mapping comprises mapping the quality of service flow between a PDU layer and a Service Data Adaptation Protocol (SDAP) layer.
11. The network device of claim 9 , wherein the message includes collocation guidance information indicating to use direct mapping between a PDU layer and a Service Data Adaptation Protocol (SDAP) layer.
12. The network device of claim 9 , wherein the processor is further configured to:
determine, based on the message, whether the quality of service flow is mapped or not mapped to the user plane tunnel.
13. The network device of claim 9 , wherein the user plane tunnel includes a General Packet Radio Service Tunneling Protocol User Plane (GTP-U) tunnel.
14. The network device of claim 9 , wherein the user plane tunnel is for uplink and downlink user plane data.
15. The network device of claim 9 , wherein the processor is configured to:
transmit, after the mapping, downlink user plane data of the quality of service flow to a distributed unit-user plane function.
16. The network device of claim 9 , wherein the processor is configured to:
transmit, after the mapping, uplink user plane data of the quality of service flow to a data network.
17. A non-transitory computer-readable storage medium storing instructions executable by a processor of a network device, which when executed cause the network device to:
receive a message pertaining to an establishment of a packet data unit (PDU);
select, based on the message, a user plane function and a central unit-user plane function; and
map, by the user plane function and the central unit-user plane function, a quality of service flow to the PDU session directly with a radio bearer and without an intermediary mapping of a user plane tunnel.
18. The non-transitory computer-readable storage medium of claim 17 , wherein the mapping comprises mapping the quality of service flow between a PDU layer and a Service Data Adaptation Protocol (SDAP) layer.
19. The non-transitory computer-readable storage medium of claim 17 , wherein the message includes collocation guidance information indicating to use direct mapping between a PDU layer and a Service Data Adaptation Protocol (SDAP) layer.
20. The non-transitory computer-readable storage medium of claim 17 , wherein the instructions to further comprise instructions, which when executed cause the network device to:
determine, based on the message, whether the quality of service flow is mapped or not mapped to the user plane tunnel.