IP Library › Patent Application 18832055
Patent Application
App. No. 18/832,055

SYSTEMS AND METHODS FOR NETWORK SLICE-BASED VPLMN SELECTION/RESELECTION

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Quick Facts
Patent No.
US None
App. No.
18/832,055
Abstract

In an embodiment, a wireless transmit receive unit (WTRU) includes a processor configured to receive configuration information that includes information related to S-NSSAI support for each visited public land mobile network (VPLMN) of a plurality of VPLMNs, to receive a message indicating that an S-NSSAI is not available on a current VPLMN, and to send a request message including an indication that the S-NSSAI is not available in the current VPLMN, the request message being one of a deregistration message and a registration request message based on the configuration information.

Claims (27)

1 - 24 . (canceled)

25 . A method implemented in a wireless transmit/receive unit (WTRU), the method comprising:

receiving a first message indicating that a requested single network slice selection assistance information (S-NSSAI) is not available on a current visited public land mobile network (VPLMN);

sending a second message indicating that the requested S-NSSAI is not available on the current VPLMN and requesting information regarding accessible VPLMNS on which the requested S-NSSAI is available; and

receiving configuration information indicating information regarding S-NSSAI support for at least one VPLMN.

26 . The method of claim 25 , further comprising moving out of the current VPLMN responsive to the configuration information.

27 . The method of claim 25 , wherein the second message comprises a request message, a deregistration message, or a registration request message.

28 . The method of claim 25 , wherein the second message comprises either a deregistration message or a registration request message, wherein whether the second message comprises a deregistration or a registration message is based on the first message.

29 . The method of claim 25 , wherein the second message comprises either a deregistration message or a registration request message, wherein whether the second message comprises a deregistration message or a registration message is based on whether the first message indicates slice-aware steering of roaming (SoR) information.

30 . The method of claim 25 , wherein the second message further indicates a request for roaming information.

31 . The method of claim 30 , wherein the roaming information includes slice-aware steering of roaming (SoR) information.

32 . The method of claim 31 , further comprising selecting a VPLMN based on the slice-aware SoR information.

33 . The method of claim 31 , further comprising selecting an access technology based on the slice-aware SoR information.

34 . The method of claim 25 , further comprising selecting a VPLMN based on a priority of the VPLMN.

35 . A wireless transmit/receive unit (WTRU) comprising:

receiver circuitry configured to receive a first message indicating that a requested single network slice selection assistance information (S-NSSAI) is not available on a current visited public land mobile network (VPLMN);

transmitter circuitry configured to send a second message indicating that the requested S-NSSAI is not available on the current VPLMN and requesting information regarding accessible VPLMNS on which the requested S-NSSAI is available; and

the receiver circuitry further configured to receive configuration information indicating information regarding S-NSSAI support for at least one VPLMN.

36 . The WTRU of claim 35 , further comprising circuitry configured to move out of the current VPLMN responsive to the configuration information.

37 . The WTRU of claim 35 , wherein the second message comprises a request message, a deregistration message, or a registration request message.

38 . The WTRU of claim 35 , wherein the second message comprises either a deregistration message or a registration request message, wherein whether the second message comprises a deregistration message or a registration message is based on the first message.

39 . The WTRU of claim 35 , wherein the second message comprises either a deregistration message or a registration request message, wherein whether the second message comprises a deregistration message or a registration message is based on whether the first message indicates slice-aware steering of roaming (SoR) information.

40 . The WTRU of claim 35 , wherein the second message further indicates a request for roaming information.

41 . The WTRU of claim 40 , wherein the roaming information includes slice-aware steering of roaming (SoR) information.

42 . The WTRU of claim 41 , further comprising circuitry configured to select a VPLMN based on the slice-aware SoR information.

43 . The WTRU of claim 41 , further comprising circuitry configured to select an access technology based on the slice-aware SoR information.

44 . The WTRU of claim 35 , further comprising circuitry configured to select a VPLMN based on a priority of the VPLMN.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 4, 2024
From: OLVERA-HERNANDEZ, ULISES; STARSINIC, MICHAEL; SETHI, ANUJ; AHMAD, SAAD; FERDI, SAMIR
To: INTERDIGITAL PATENT HOLDINGS, INC.
Reel/Frame 069484/0450 →