Mobile service providers are deploying 5G technology with network slicing to enable different business use cases. Presented herein are techniques to implement network slicing. In a first technique, a 1:1 mapping is made between the s-Network Slice Selection Assistance Information (NSSAI) subscribed by the User Equipment (UE) in the 5G network to the UE usage type (UUT) in the Home Subscriber Server (HSS), along with the subscribed priority of the slices per UE. This is sent to the Mobility Management Entity (MME). In a second technique, an N:1 mapping between is made between the s-NSSAI's subscribed by the UE in the 5G network to the UUT in the HSS, along with the subscribed priority of the slices per UE. The same is sent to the MME as a unique UUT value which is an operator specific value.
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Agarwal, Vivek; Suthar, Om Prakash; Suryanarayanarao, Raghavendra; Shetty, Rajaneesh; and Gunasekaran, Arun, "OPTIMIZED AND CONVERGED PACKET CORE GATEWAY SELECTION FOR 5G USER IN E-UTRAN COVERAGE", Technical Disclosure Commons, (August 24, 2020)