US 12,267,774 B2
Methods, architectures, apparatuses and systems for supporting network slicing serving area
Michael Starsinic, Newtown, PA (US); Samir Ferdi, Kirkland (CA); Saad Ahmad, Montreal (CA); Ulises Olvera-Hernandez, Saint-Lazare (CA); and Anuj Sethi, Ottawa (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Jul. 25, 2024, as Appl. No. 18/783,768.
Application 18/783,768 is a continuation of application No. PCT/US2023/011308, filed on Jan. 23, 2023.
Claims priority of provisional application 63/303,574, filed on Jan. 27, 2022.
Prior Publication US 2024/0381240 A1, Nov. 14, 2024
Int. Cl. H04W 48/18 (2009.01); H04W 48/08 (2009.01); H04W 60/04 (2009.01)
CPC H04W 48/18 (2013.01) [H04W 48/08 (2013.01); H04W 60/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless transmit/receive unit (WTRU) comprising:
a processor and a transceiver which are configured to:
send a first registration request message which includes a slice-specific service area (SSSA) information support indication and a first requested network slice selection assistance information (NSSAI), wherein the first requested NSSAI includes a set of one or more single-NSSAIs (S-NSSAIs);
receive a first registration accept message, in response to the first registration request message, which includes information indicating (i) a first registration area (RA) and (ii) SSSA information indicating a first S-NSSAI, included in the first requested NSSAI, is rejected and a set of tracking areas (TAs), in in the first RA, which do not support the first S-NSSAI;
send, based on the WTRU moving to a TA, in the first RA, not included in the set of TAs, a second registration request message which includes information indicating a second requested NSSAI, wherein the second requested NSSAI includes at least the first S-NSSAI; and
receive a second registration accept message, in response to the second registration request message, which includes information indicating that at least the first S-NSSAI, included in the second requested NSSAI, is allowed.