CPC H04W 48/18 (2013.01) [H04W 8/12 (2013.01); H04W 36/32 (2013.01); H04W 80/10 (2013.01)] | 14 Claims |
1. A method performed by an access and mobility management function network element in a visited network in a home-routed roaming operation in which a terminal accesses the visited network, comprising:
obtaining single network slice selection assistance information (S-NSSAI) for a home network corresponding to a session of the terminal, wherein the access and mobility management function network element receives the S-NSSAI for the home network from a visited session management network element in the visited network;
obtaining S-NSSAI for the visited network corresponding to the session of the terminal, based on a mapping relationship between the S-NSSAI for the home network and the S-NSSAI for the visited network; and
sending, the S-NSSAI for the visited network to an access device of the terminal in the visited network.
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