Wireless relay slices in a wireless communication network

A wireless communication network to serve a wireless User Equipment (UEs) over relay slices in a wireless relay and a network slice in the wireless communication network, the wireless communication network comprising:

• the wireless relay wirelessly configured to attach to a wireless access node that responsively transfers relay attachment signaling for the wireless relay to an Access and Mobility Management Function (AMF);
• the AMF configured to receive the relay attachment signaling for the wireless relay and responsively transfer a relay slice request for the wireless relay to a Network Slice Selection Function (NSSF), the NSSF configured to receive the relay slice request and responsively transfer a network slice Identifier (ID) for the network slice and relay slice IDs for the relay slices for the wireless relay to the AMF, the AMF configured to receive the network slice ID and the relay slice IDs and responsively transfer the network slice ID and the relay slice IDs for the wireless relay to a Session Management Function (SMF), and the SMF configured to receive the network slice ID and the relay slice IDs, and in response, instantiate a network User Plane Function (UPF) in the wireless communication network responsive to the network slice ID, instantiate relay UPFs in the wireless relay responsive to the relay slice IDs, and instantiate relay Control Plane Functions (CPFs) in the wireless relay for the relay slices;
• the wireless relay configured to wirelessly exchange user data with the UEs, the relay UPFs configured to process the user data for the relay slices, the wireless relay configured to wirelessly exchange the user data with the wireless access node that exchanges the user data with the network UPF, the wireless relay configured to wirelessly receive UE attachments from the UEs, and the CPFs configured to responsively transfer UE attachment signaling for the UEs to the wireless access node that responsively transfers the UE attachment signaling to the AMF;
• the AMF configured to receive the UE attachment signaling and responsively transfer UE slice requests for the UEs to the NSSF, the NSSF configured to receive the UE slice requests and responsively indicate the relay slice IDs for the UEs to the AMF, the AMF configured to receive the relay slice IDs for the UEs and responsively transfer the relay slice IDs for the UEs to the SMF, the SMF configured to receive the relay slice IDs for the UEs and responsively instruct the relay CPFs in the wireless relay to serve the UEs for the relay slices;
• the CPFs in the wireless relay configured to receive the SMF instructions and responsively direct the relay UPFs in the wireless relay to serve the UE for the relay slices;
• and
• the network UPF configured to receive and process the user data for the network slice.