Enhancements for user equipment network slice management

Patent metadata

Field	Value
Publication number	US-12568429-B2
Application number	US-202218046592-A
Country	US
Kind code	B2
Filing date	Oct 14, 2022
Priority date	Nov 2, 2021
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A user equipment (UE) configured to transmit a registration request message to a network, the registration request message comprising a request to register to a set of one or more single-network slice selection assistance information (S-NSSAIs), receive a response to the registration request message, the response indicating that the request to register to the set of one or more S-NSSAIs is rejected and store the set of one or more S-NSSAIs in a rejected NSSAI list locally at the UE.

First claim

What is claimed:

1 . A method performed by a user equipment (UE), comprising:
transmitting a registration request message to a network, the registration request message comprising a request to register to a set of one or more single-network slice selection assistance information (S-NSSAIs); receiving a response to the registration request message, the response indicating that the request to register to the set of one or more S-NSSAIs is rejected; storing the set of one or more S-NSSAIs in a rejected NSSAI list locally at the UE; performing, after storing the set of one or more S-NSSAIs in the rejected NSSAI list, an inter-radio access technology (IRAT) transition from N1 mode to S1 mode; and deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to the IRAT transition.

2 . The method of claim 1 , further comprising:
receiving, after storing the set of one or more S-NSSAIs in the rejected NSSAI list, an indication of a network slice subscription change for the UE; and deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to the indication of the network slice subscription change.

3 . The method of claim 1 , further comprising:
receiving, after storing the set of one or more S-NSSAIs in the rejected NSSAI list, a configuration update command (CUC) with a registration requested bit of a configuration update indication information element (IE) set to a first value; and deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to the CUC.

4 . The method of claim 3 , wherein the CUC contains no other parameters.

5 . The method of claim 1 , further comprising:
entering, after storing the set of one or more S-NSSAIs in the rejected NSSAI list and an unsuccessful registration on a new public land mobile network (PLMN), a fifth generation mobility management (5GMM) registered mode; deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to detecting the 5GMM registered mode and detecting that the UE is not registered with a current PLMN over another access.

6 . An apparatus comprising a memory coupled to a processing circuitry, the processing circuitry configured to:
generating, for transmission to a network, a registration request, the registration request message comprising a request to register to a set of one or more single-network slice selection assistance information (S-NSSAIs); processing, based on signaling received from the network, a response to the registration request message, the response indicating that the request to register to the set of one or more S-NSSAIs is rejected; storing the set of one or more S-NSSAIs in a rejected NSSAI list locally at the UE; performing, after storing the set of one or more S-NSSAIs in the rejected NSSAI list, an inter-radio access technology (IRAT) transition from N1 mode to S1 mode; and deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to the IRAT transition.

7 . The apparatus of claim 6 , the processing circuitry further configured to:
processing, based on signaling received from the network after storing the set of one or more S-NSSAIs in the rejected NSSAI list, an indication of a network slice subscription change for the UE; and deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to the indication of the network slice subscription change.

8 . The apparatus of claim 6 , the processing circuitry further configured to:
processing, based on signaling received from the network after storing the set of one or more S-NSSAIs in the rejected NSSAI list, a configuration update command (CUC) with a registration requested bit of a configuration update indication information element (IE) set to a first value; and deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to the CUC.

9 . The apparatus of claim 8 , wherein the CUC contains no other parameters.

10 . The apparatus of claim 6 , the processing circuitry further configured to:
entering, after storing the set of one or more S-NSSAIs in the rejected NSSAI list and an unsuccessful registration on a new public land mobile network (PLMN), a fifth generation mobility management (5GMM) registered mode; deleting the set of one or more S-NSSAIs from the rejected NSSAI list in response to detecting the 5GMM registered mode and detecting that the UE is not registered with a current PLMN over another access.

11 . A non-transitory computer readable storage medium comprising a set of instructions, wherein the set of instructions when executed by a processor cause the processor to perform operations, comprising:
generate, for transmission to a network, a registration request, the registration request message comprising a request to register to a set of one or more single-network slice selection assistance information (S-NSSAIs); process, based on signaling received from the network, a response to the registration request message, the response indicating that the request to register to the set of one or more S-NSSAIs is rejected; store the set of one or more S-NSSAIs in a rejected NSSAI list locally at the UE; perform, after storing the set of one or more S-NSSAIs in the rejected NSSAI list, an inter-radio access technology (IRAT) transition from N1 mode to S1 mode; and delete the set of one or more S-NSSAIs from the rejected NSSAI list in response to the IRAT transition.

12 . The non-transitory computer readable storage medium of claim 11 , further configured to:
process, based on signaling received from the network after storing the set of one or more S-NSSAIs in the rejected NSSAI list, an indication of a network slice subscription change for the UE; and delete the set of one or more S-NSSAIs from the rejected NSSAI list in response to the indication of the network slice subscription change.

13 . The non-transitory computer readable storage medium of claim 11 , further configured to:
process, based on signaling received from the network after storing the set of one or more S-NSSAIs in the rejected NSSAI list, a configuration update command (CUC) with a registration requested bit of a configuration update indication information element (IE) set to a first value; and delete the set of one or more S-NSSAIs from the rejected NSSAI list in response to the CUC.

14 . The non-transitory computer readable storage medium of claim 13 , wherein the CUC contains no other parameters.

15 . The non-transitory computer readable storage medium of claim 11 , the further configured to:
enter, after storing the set of one or more S-NSSAIs in the rejected NSSAI list and an unsuccessful registration on a new public land mobile network (PLMN), a fifth generation mobility management (5GMM) registered mode; delete the set of one or more S-NSSAls from the rejected NSSAI list in response to detecting the 5GMM registered mode and detecting that the UE is not registered with a current PLMN over another access.

Assignees

• Apple Inc

Inventors

• Mysore Viswanath Vinay
• Venkataraman Vijay
• Gupta Vivek G

Classifications

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title

• H04W60/04

  using triggered events · CPC title

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04W48/14

  using user query {or user detection} · CPC title

• H04W60/00

  Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration · CPC title