US 12,438,926 B2
Method and apparatus for selecting network slice admission control function
Wei Hong, Beijing (CN)
Assigned to Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN)
Appl. No. 18/292,560
Filed by Beijing Xiaomi Mobile Software Co., Ltd., Beijing (CN)
PCT Filed Jul. 27, 2021, PCT No. PCT/CN2021/108772
§ 371(c)(1), (2) Date Jan. 26, 2024,
PCT Pub. No. WO2023/004605, PCT Pub. Date Feb. 2, 2023.
Prior Publication US 2024/0348667 A1, Oct. 17, 2024
Int. Cl. G06F 15/16 (2006.01); H04L 41/0894 (2022.01); H04L 43/0817 (2022.01); H04L 65/1069 (2022.01); H04W 76/18 (2018.01)
CPC H04L 65/1069 (2013.01) [H04L 41/0894 (2022.05); H04L 43/0817 (2013.01); H04W 76/18 (2018.02)] 18 Claims
OG exemplary drawing
 
1. A method for Network Slice Admission Control Function (NSACF) selection, wherein the method is performed by a Session Management Function (SMF), and comprises:
receiving, via an Access and Mobility Management Function (AMF), a Protocol Data Unit (PDU) session establishment request from User Equipment (UE); and
in response to receipt of the PDU session establishment request, selecting a first NSACF for a network slice based on a service capability of at least one NSACF;
wherein the service capability comprises at least one of:
a first service capability that supports monitoring and controlling a number of registered UEs for the network slice, or
a second service capability that supports monitoring and controlling a number of established PDU sessions for the network slice;
wherein selecting the first NSACF for the network slice comprises at least one of:
selecting a NSACF having the first service capability and the second service capability for the network slice as the first NSACF;
when a plurality of NSACFs have the first service capability and the second service capability, selecting a NSACF from the plurality of NSACFs for the network slice according to priorities of the plurality of NSACFs, as the first NSACF;
in response to that the network slice supports monitoring and controlling of the number of registered UEs, selecting, for the network slice, a NSACF that monitors and controls the number of registered UEs for the network slice and has the second service capability, as the first NSACF; or
selecting the first NSACF for the network slice according to an operator service capability policy, wherein the operator service capability policy comprises at least one of:
indicating to select a NSACF with a required service capability, wherein the required service capability comprises the second service capability only or comprises the first service capability and the second service capability; or
indicating to select a NSACF meeting a priority requirement.