US 11,812,375 B2
Simultaneous network slice usage via dual connectivity
Alosious Pradeep Prabhakar, Singapore (SG); Krisztian Kiss, Hayward, CA (US); and Vijay Venkataraman, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Apr. 27, 2021, as Appl. No. 17/302,188.
Claims priority of provisional application 63/018,936, filed on May 1, 2020.
Prior Publication US 2021/0345235 A1, Nov. 4, 2021
Int. Cl. H04W 48/18 (2009.01); H04W 76/15 (2018.01); H04W 76/11 (2018.01); H04W 8/08 (2009.01); H04W 16/02 (2009.01)
CPC H04W 48/18 (2013.01) [H04W 8/08 (2013.01); H04W 76/11 (2018.02); H04W 76/15 (2018.02); H04W 16/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
at an access and mobility management function (AMF):
receiving a request for a network slice from a user equipment (UE) that is connected to a first cell of a radio access network (RAN) operating on a first frequency;
determining that the network slice is available on a second frequency and not available on the first frequency;
receiving network slice information from a network slice selection function (NSSF) comprising an indication that the network slice is available via a second cell within the RAN that operates on the second frequency, wherein the network slice information includes a mapping of network slices supported by a public land mobile network (PLMN) to one or more frequencies the network slices are allowed to operate on; and
transmitting a message to the UE, wherein the message indicates that the network slice is available via the second cell within the RAN that operates on the second frequency.