US 11,723,100 B2
User equipment, communication control method of user equipment, core network device, communication control method of core network, SMF, and communication control method of SMF
Yudai Kawasaki, Sakai (JP); Yasuo Sugawara, Sakai (JP); Masafumi Aramoto, Sakai (JP); and Tsuyoshi Takakura, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP); and FG Innovation Company Limited, Tuen Mun (HK)
Appl. No. 16/624,295
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP); and FG Innovation Company Limited, Tuen Mun (HK)
PCT Filed Jun. 19, 2018, PCT No. PCT/JP2018/023203
§ 371(c)(1), (2) Date Dec. 19, 2019,
PCT Pub. No. WO2018/235795, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. 2017-119517 (JP), filed on Jun. 19, 2017.
Prior Publication US 2020/0120738 A1, Apr. 16, 2020
Int. Cl. H04W 76/38 (2018.01); H04W 12/72 (2021.01); H04M 15/00 (2006.01); H04W 52/42 (2009.01); H04W 48/18 (2009.01); H04W 12/06 (2021.01); H04L 65/1066 (2022.01); H04L 67/63 (2022.01); H04W 76/18 (2018.01); H04W 80/10 (2009.01)
CPC H04W 76/18 (2018.02) [H04W 80/10 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A User Equipment (UE), comprising:
transmitting and receiving circuitry configured to:
transmit, to a Session Management Function (SMF), a Protocol Data Unit (PDU) session establishment request message indicating a request for establishment of a PDU session; and
in response to transmitting the PDU session establishment request message to the SMF, receive, from the SMF, identification information indicating that the request is rejected, the identification information further indicating a timer value; and
a controller configured to, in a case that the timer value indicates neither zero nor deactivated, start a timer with the timer value based on Single-Network Slice Selection Assistance Information (S-NSSAI),
wherein:
the timer is configured on a per-slice basis;
while the UE is in a state in which the PDU session is not established, a transmission of another PDU session establishment request message is prohibited until the timer expires; and
the S-NSSAI is associated with a Public Land Mobile Network (PLMN) that is registered by the UE.