Search

EP-4740683-A1 - APPARATUS AND METHOD FOR USER PLANE FUNCTION (UPF) BASED PDU SET HANDLING DATA CHANNEL (PDC) OPERATION

EP4740683A1EP 4740683 A1EP4740683 A1EP 4740683A1EP-4740683-A1

Abstract

Systems, methods, devices, and instrumentalities are described herein related to wireless transmit/receive unit based PDC creation. A device (e.g., an enabler server) may include a processor configured to perform one or more actions. The device may receive a first message from a second network node. The first message may be associated with a protocol data unit (PDU) session and include a PDU set handling data channel (PDC) setup information element (IE). The device may send a second message to a third network node, wherein the second message indicates a request to create a PDC and include the PDC setup IE. The device may receive a third message from the third network node. The third message may indicate the PDC has been established. The device may determine that the PDC is associated with the PDU session based on the PDC setup IE.

Inventors

  • DE FOY, XAVIER
  • FERDI, SAMIR
  • GUDUMASU, Srinivas
  • STARSINIC, MICHAEL
  • METHENNI, Achref
  • ROY, MICHEL
  • DI GIROLAMO, ROCCO
  • Sarathchandra, Magurawalage Chathura Madhusanka
  • DI LALLO, KEVIN

Assignees

  • Interdigital Patent Holdings, Inc.

Dates

Publication Date
20260513
Application Date
20240703

Claims (20)

  1. CLAIMS What is claimed: 1. A first network node for providing a user plane function (UPF), the first network node comprising: a processor configured to: receive a first message from a second network node, wherein the first message is associated with a protocol data unit (PDU) session and comprises a PDU set handling data channel (PDC) setup information element (IE); send a second message to a third network node, wherein the second message indicates a request to create a PDC and comprises the PDC setup IE; receive a third message from the third network node, wherein the third message indicates the PDC has been established; determine that the PDC is associated with the PDU session based on the PDC setup IE; receive a fourth message from the third network node using the PDC, wherein the fourth message comprises a PDU set IE and a downlink (DL) PDU; determine that the PDU set IE is associated with the DL PDU; and send a fifth message to the second network node, wherein the message comprises the DL PDU, and a header that comprises the PDU set IE.
  2. 2. The first network node of claim 1, wherein the PDU set IE is a first PDU set IE, and wherein the processor is further configured to receive a sixth message from the third network node, wherein the sixth message comprises at least a second PDU set IE.
  3. 3. The first network node of claim 2, wherein the processor being configured to determine that the first PDU set IE is associated with the DL PDU, comprises the processor being configured to determine that the first PDU set IE and the second PDU set IE are associated with the DL PDU.
  4. 4. The first network node of any one of claims 2 to 3, wherein the processor is further configured to determine that the second PDU set IE is associated with the DL PDU.
  5. 5. The first network node of any one of claims 2 to 4, wherein the header further comprises the second PDU IE.
  6. 6. The first network node of any one of claims 2 to 5, wherein the first message is at least one of a notification message or a session modification message.
  7. 7. The first network node of any one of claims 2 to 6, wherein the first PDC setup IE comprises at least one of a PDC protocol, an IP address and port for a PDC endpoint, or a security parameter associated with PDC establishment.
  8. 8. The first network node of any one of claims 2 to 7, wherein the PDU setup IE is a first PDU setup IE, and wherein the first message further comprises a second PDU setup IE.
  9. 9. The first network node of any one of claims 2 to 8, wherein the processor is further configured to select the first PDU setup IE to be used for the PDC selection.
  10. 10. The first network node of any one of claims 2 to 9, wherein the second message further indicates that the first PDU setup IE is the selected PDU setup IE.
  11. 11. A method for providing a user plane function (UPF), the method comprising: receiving a first message from a second network node, wherein the first message is associated with a protocol data unit (PDU) session and comprises a PDU set handling data channel (PDC) setup information element (IE); sending a second message to a third network node, wherein the second message indicates a request to create a PDC and comprises the PDC setup IE; receiving a third message from the third network node, wherein the third message indicates the PDC has been established; determining that the PDC is associated with the PDU session based on the PDC setup IE; receiving a fourth message from the third network node using the PDC, wherein the fourth message comprises a PDU set IE and a downlink (DL) PDU; determining that the PDU set IE is associated with the DL PDU; and sending a fifth message to the second network node, wherein the message comprises the DL PDU, and a header that comprises the PDU set IE.
  12. 12. The method of claim 11, wherein the PDU set IE is a first PDU set IE, and wherein the method further comprises receiving a sixth message from the third network node, wherein the sixth message comprises at least a second PDU set IE.
  13. 13. The method of claim 12, wherein the method further comprises determining that the first PDU set IE is associated with the DL PDU, comprises determining that the first PDU set IE and the second PDU set IE are associated with the DL PDU.
  14. 14. The method of any one of claims 12 to 13, wherein the method further comprises determining that the second PDU set IE is associated with the DL PDU.
  15. 15. The method of any one of claims 2 to 4, wherein the header further comprises the second PDU IE.
  16. 16. The method of any one of claims 12 to 15, wherein the first message is at least one of a notification message or a session modification message.
  17. 17. The method of any one of claims 12 to 16, wherein the first PDC setup IE comprises at least one of a PDC protocol, an IP address and port for a PDC endpoint, or a security parameter associated with PDC establishment.
  18. 18. The method of any one of claims 12 to 17, wherein the PDU setup IE is a first PDU setup IE, and wherein the first message further comprises a second PDU setup IE.
  19. 19. The method of any one of claims 12 to 18, wherein the method further comprises selecting the first PDU setup IE to be used for the PDC selection.
  20. 20. The method of any one of claims 12 to 19, wherein the second message further indicates that the first PDU setup IE is the selected PDU setup IE.

Description

SYSTEMS, METHODS, AND APPARATUS FOR USER PLANE FUNCTION BASED PDC OPERATION CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Application No.63/525,599, filed July 7, 2023, the contents of which is incorporated by reference herein. BACKGROUND [0002] Mobile communications using wireless communication continue to evolve. A fifth generation may be referred to as 5G. A previous (legacy) generation of mobile communication may be, for example, fourth generation (4G) long term evolution (LTE). SUMMARY [0003] Systems, methods, devices, and instrumentalities are described herein related to NEF-based PDC creation and operation (e.g., by an enabler server, such as an edge enabler server (EES)). [0004] A first network node may provide for a user plane function (UPF). The first network node may include a processor configured to carry out the following actions. The processor may receive a first message from a second network node. The first message may be associated with a protocol data unit (PDU) session and include a PDU set handling data channel (PDC) setup information element (IE). The processor may send a second message to a third network node. The second message may indicate a request to create a PDC and may include the PDC setup IE. The processor may receive a third message from the third network node. The third message may indicate the PDC has been established. The processor may determine that the PDC is associated with the PDU session based on the PDC setup IE. The processor may receive a fourth message from the third network node using the PDC. The fourth message may include a PDU set IE and a downlink (DL) PDU. The processor may determine that the PDU set IE is associated with the DL PDU. The processor may send a fifth message to the second network node. The message may include the DL PDU and a header that includes the PDU set IE. [0005] The PDU set IE may be a first PDU set IE. The processor may receive a sixth message from the third network node. The sixth message may include at least a second PDU set IE. [0006] The processor may determine that the first PDU set IE is associated with the DL PDU. The processor may determine that the first PDU set IE and the second PDU set IE are associated with the DL PDU. The processor may determine that the second PDU set IE is associated with the DL PDU. The header may include the second PDU IE. [0007] The first message may be at least one of a notification message or a session modification message. The first PDC setup IE may include at least one of a PDC protocol, an IP address and port for a PDC endpoint, or a security parameter associated with PDC establishment. [0008] The PDU setup IE may be a first PDU setup IE. The first message may include a second PDU setup IE. The processor may select the first PDU setup IE to be used for the PDC selection. The second message may indicate that the first PDU setup IE is the selected PDU setup IE. [0009] A method for providing a user plane function (UPF) may be provided. The method may include receiving a first message from a second network node. The first message may be associated with a protocol data unit (PDU) session and may include a PDU set handling data channel (PDC) setup information element (IE). The method may include sending a second message to a third network node. The second message may indicate a request to create a PDC and may include the PDC setup IE. [0010] The method may include receiving a third message from the third network node. The third message may indicate the PDC has been established. The method may include determining that the PDC is associated with the PDU session based on the PDC setup IE. The method may include receiving a fourth message from the third network node using the PDC. The fourth message may include a PDU set IE and a downlink (DL) PDU. The method may include determining that the PDU set IE is associated with the DL PDU. The method may include sending a fifth message to the second network node. The message may include the DL PDU and a header that may include the PDU set IE. [0011] The PDU set IE may be a first PDU set IE. The method may include receiving a sixth message from the third network node. The sixth message may include at least a second PDU set IE. The method may include determining that the first PDU set IE is associated with the DL PDU, including determining that the first PDU set IE and the second PDU set IE are associated with the DL PDU. [0012] The method may include determining that the second PDU set IE is associated with the DL PDU. The header may include the second PDU IE. The first message may be at least one of a notification message or a session modification message. The first PDC setup IE may include at least one of a PDC protocol, an IP address and port for a PDC endpoint, or a security parameter associated with PDC establishment. [0013] The PDU setup IE may be a first PDU setup IE. The first message may include a