US 12,262,314 B2
Network slice aware cell selection
Vijay Venkataraman, San Jose, CA (US); Alosious Pradeep Prabhakar, Singapore (SG); Cahya A. Masputra, San Jose, CA (US); Haijing Hu, Los Gatos, CA (US); Krisztian Kiss, Hayward, CA (US); Longda Xing, San Jose, CA (US); and Srinivasan Nimmala, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,794
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Feb. 12, 2020, PCT No. PCT/CN2020/074883
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2021/159307, PCT Pub. Date Aug. 19, 2021.
Prior Publication US 2022/0377659 A1, Nov. 24, 2022
Int. Cl. H04W 48/20 (2009.01); H04L 5/00 (2006.01); H04W 48/12 (2009.01); H04W 72/0453 (2023.01); H04W 72/23 (2023.01)
CPC H04W 48/20 (2013.01) [H04L 5/0048 (2013.01); H04W 48/12 (2013.01); H04W 72/0453 (2013.01); H04W 72/23 (2023.01)] 14 Claims
OG exemplary drawing
 
1. A method, comprising:
at a user equipment (UE):
transmitting, during a non-access stratum (NAS) registration for a registration area, single network slice selection assistance information (s-NSSAI) information indicating multiple network slices the UE is permitted to attempt to access;
receiving information in a NAS registration accept message from a network indicating whether each network slice of the multiple network slices is allowed or rejected for a set of cells in the registration area, wherein the NAS registration accept message further comprises a Boolean indicator for each network slice of the multiple network slices;
determining that a first network slice of the multiple network slices is rejected and not supported by at least one cell of the set of cells based on the NAS registration accept message;
wherein when a first Boolean indicator for the first network slice is associated with a true value, the first network slice is not supported by the set of cells in the registration area;
wherein when the first Boolean indicator for the first network slice is associated with a false value, the first network slice is supported by at least one cell in the set of cells in the registration area;
identifying that the UE is located within the coverage area of a first cell of the set of cells;
determining whether measurement data corresponding to the first cell satisfies predetermined criteria; and
when the measurement data satisfies the criteria, camping on the first cell.