US 12,414,181 B2
UE and SMF
Yasuo Sugawara, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 17/619,894
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Jun. 16, 2020, PCT No. PCT/JP2020/023579
§ 371(c)(1), (2) Date Dec. 16, 2021,
PCT Pub. No. WO2020/255954, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 2019-111959 (JP), filed on Jun. 17, 2019.
Prior Publication US 2022/0361272 A1, Nov. 10, 2022
Int. Cl. H04W 76/16 (2018.01); H04W 60/04 (2009.01); H04W 88/06 (2009.01)
CPC H04W 76/16 (2018.02) [H04W 60/04 (2013.01); H04W 88/06 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A User Equipment (UE) comprising:
a controller; and
transmission and reception circuitry,
wherein
the transmission and reception circuitry is configured to receive, from an Access and Mobility Management Function (AMF), first information indicating whether a network supports Access Traffic Steering, Switching, Splitting (ATSSS) or not,
the controller is configured to determine whether the ATSSS is supported by the network or not based on the first information,
in a case that the controller determines that the ATSSS is supported by the network based on the first information, the controller is further configured to initiate a Protocol Data Unit (PDU) session establishment procedure,
in a case that the transmission and reception circuitry receives, over a first access which is either one of a third Generation Partnership Project (3GPP) access and a non-3GPP access, a PDU session establishment accept message including an ATSSS container Information Element (IE) in the PDU session establishment procedure, the controller is further configured to consider that a Multi-Access (MA) PDU session has been established and user plane resources of the MA PDU session only on the first access are established, and
in a case that the controller determines that the ATSSS is not supported by the network based on the first information, the controller is further configured to forgo initiating the PDU session establishment procedure to establish the MA PDU session.