US 12,464,407 B2
Handling of URSP regarding S-NSSAI and PDU type
Chien-Chun Huang-Fu, Hsin-Chu (TW)
Assigned to MEDIATEK INC., (TW)
Filed by MEDIATEK INC., Hsin-Chu (TW)
Filed on Jan. 25, 2022, as Appl. No. 17/584,241.
Claims priority of provisional application 63/200,228, filed on Feb. 23, 2021.
Prior Publication US 2022/0272576 A1, Aug. 25, 2022
Int. Cl. H04W 28/08 (2023.01); H04W 40/02 (2009.01)
CPC H04W 28/0925 (2020.05) [H04W 28/0831 (2020.05); H04W 40/026 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method of User Equipment (UE) Route Selection Policy (URSP) rule matching, comprising:
receiving a request from upper layers for protocol data unit (PDU) session information of the UE in a mobile communication network;
selecting a URSP rule from one or more configured URSP rules, wherein a traffic descriptor of the selected URSP rule matches with an application;
obtaining a PDU session that matches a route selection descriptor (RSD) from a list of RSDs of the selected URSP rule, wherein the RSD has a first PDU session type set to IPv4v6, and wherein the PDU session has a second PDU session type set to IPv6 in a PDU SESSION ESTABLISHMENT ACCEPT message from the network; and
associating the PDU session with the application and providing the PDU session information to the upper layers, wherein the UE does not receive any 5G session management (5GSM) cause value, or the UE receives a 5GSM cause value other than IPv6 only allowed.