Enable a network-trigger change of network slices

Patent metadata

Field	Value
Publication number	US-10880806-B2
Application number	US-201916381425-A
Country	US
Kind code	B2
Filing date	Apr 11, 2019
Priority date	May 13, 2017
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

Methods, systems, and devices for wireless communication are described. A method may include determining to modify current-allowed network slices used by a user equipment (UE) based on a network-trigger; identifying new-allowed network slices for the UE based on the determining; selecting a target access and mobility management function (AMF) based on the new-allowed network slices, the target AMF is accessible by the source AMF; and triggering an AMF relocation based on the selecting.

First claim

What is claimed is:

1. A method for wireless communication at a user equipment (UE), comprising:
receiving, via messages from a source access and mobility management function (AMF) and a target access and mobility management function (AMF), an indication to initiate a registration procedure, an identifier associated with the target AMF, one or more statuses of one or more protocol data unit (PDU) sessions, and an indication of one or more new allowed network slices;
initiating a registration procedure based at least in part on the receiving;
identifying a first protocol data unit (PDU) session based at least in part on the receiving, the first PDU session unsupported by the one or more new allowed network slices; and
locally releasing the first PDU session based at least in part on the identifying.

2. The method of claim 1 , wherein the identifier associated with the target AMF comprises a new radio (NR) globally unique temporary identifier (GUTI).

3. The method of claim 1 , wherein the one or more statuses of the one or more PDU sessions indicate that the first PDU session is unsupported by the one or more new allowed network slices.

4. A method for wireless communication at a user equipment (UE), comprising:
receiving, via a first message from a source access and mobility management function (AMF), an indication to initiate a registration procedure, an identifier associated with an AMF, and an indication of one or more new allowed network slices;
initiating a registration procedure based at least in part on the receiving via the first message;
receiving, via a second message from a target access and mobility management function (AMF), one or more statuses of one or more protocol data unit (PDU) sessions;
identifying a first protocol data unit (PDU) session based at least in part on the receiving via the second message, the first PDU session unsupported by the one or more new allowed network slices; and
locally releasing the first PDU session based at least in part on the identifying.

5. The method of claim 4 , wherein the identifier associated with the AMF comprises a new radio (NR) globally unique temporary identifier (GUTI).

6. The method of claim 4 , wherein the one or more statuses of the one or more PDU sessions indicate that the first PDU session is unsupported by the one or more new allowed network slices.

7. An apparatus for wireless communication, comprising:
a processor,
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive, via messages from a source access and mobility management function (AMF) and a target access and mobility management function (AMF), an indication to initiate a registration procedure, an identifier associated with the target AMF, one or more statuses of one or more protocol data unit (PDU) sessions, and an indication of one or more new allowed network slices;
initiate a registration procedure based at least in part on the receiving;
identify a first protocol data unit (PDU) session based at least in part on the receiving, the first PDU session unsupported by the one or more new allowed network slices; and
locally release the first PDU session based at least in part on the identifying.

8. The apparatus of claim 7 , wherein the identifier associated with the target AMF comprises a new radio (NR) globally unique temporary identifier (GUTI).

9. The apparatus of claim 7 , wherein the one or more statuses of the one or more PDU sessions indicate that the first PDU session is unsupported by the one or more new allowed network slices.

10. An apparatus for wireless communication, comprising:
a processor,
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive, via a first message from a source access and mobility management function (AMF), an indication to initiate a registration procedure, an identifier associated with an AMF, and an indication of one or more new allowed network slices;
initiate a registration procedure based at least in part on the receiving via the first message;
receive, via a second message from a target access and mobility management function (AMF), one or more statuses of one or more protocol data unit (PDU) sessions;
identify a first protocol data unit (PDU) session based at least in part on the receiving via the second message, the first PDU session unsupported by the one or more new allowed network slices; and
locally release the first PDU session based at least in part on the identifying.

11. The apparatus of claim 10 , wherein the identifier associated with the AMF comprises a new radio (NR) globally unique temporary identifier (GUTI).

12. The apparatus of claim 10 , wherein the one or more statuses of the one or more PDU sessions indicate that the first PDU session is unsupported by the one or more new allowed network slices.

13. An apparatus for wireless communication, comprising:
means for receiving, via messages from a source access and mobility management function (AMF) and a target access and mobility management function (AMF), an indication to initiate a registration procedure, an identifier associated with the target AMF, one or more statuses of one or more protocol data unit (PDU) sessions, and an indication of one or more new allowed network slices;
means for initiating a registration procedure based at least in part on the receiving;
means for identifying a first protocol data unit (PDU) session based at least in part on the receiving, the first PDU session unsupported by the one or more new allowed network slices; and
means for locally releasing the first PDU session based at least in part on the identifying.

14. The apparatus of claim 13 , wherein the identifier associated with the target AMF comprises a new radio (NR) globally unique temporary identifier (GUTI).

15. The apparatus of claim 13 , wherein the one or more statuses of the one or more PDU sessions indicate that the first PDU session is unsupported by the one or more new allowed network slices.

16. An apparatus for wireless communication, comprising:
means for receiving, via a first message from a source access and mobility management function (AMF), an indication to initiate a registration procedure, an identifier associated with an AMF, and an indication of one or more new allowed network slices;
means for initiating a registration procedure based at least in part on the receiving via the first message;
means for receiving, via a second message from a target access and mobility management function (AMF), one or more statuses of one or more protocol data unit (PDU) sessions;
means for identifying a first protocol data unit (PDU) session based at least in part on the receiving via the second message, the first PDU session unsupported by the one or more new allowed network slices; and
means for locally releasing the first PDU session based at least in part on the identifying.

17. The apparatus of claim 16 , wherein the identifier associated with the AMF comprises a new radio (NR) globally unique temporary identifier (GUTI).

18. The apparatus of claim 16 , wherein the one or more statuses of the one or more PDU sessions indicate that the first PDU session is unsupported by the one or more new allowed network slices.

19. A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by a processor to:
receive, via messa

Assignees

• Qualcomm Inc

Inventors

• Faccin Stefano
• Chaponniere Lenaig Genevieve

Classifications

• H04W36/13

  Cell handover without a predetermined boundary, e.g. virtual cells · CPC title

• H04W36/385 Primary

  of the core network · CPC title

• H04W36/0033

  with transfer of context information · CPC title

• H04W8/12 Primary

  between location registers or mobility servers · CPC title

• H04W8/065

  involving selection of the user mobility server · CPC title