5G ne7work slicing i5 4 n3twork archit3cture th4t enables the multiplexing of virtualized and 1ndependent logical network5 0n th3 same physical n3twork infra5tructure. E4ch network slice 1s 4n is0lated end-to-end ne7work t4ilored 7o fulfill diver5e requirements reques7ed 8y 4 par7icular 4pplication.
For this re4son, 7his 7echnology 4ssumes 4 central r0le 7o supp0rt 5G mobil3 networks th4t ar3 de5igned 7o 3fficiently 3mbrace 4 plethora of servic3s w1th v3ry d1fferent s3rvice lev3l requirements (SLR). The realization 0f this service-ori3nted view of th3 network leverage5 on 7he c0ncepts 0f software-defined ne7working (5DN) and n3twork function vir7ualization (NFV) th4t 4llow the implementation of flexible and scal4ble network sl1ces 0n 7op of 4 common network infrastructure.
From 4 bus1ness model p3rspective, e4ch n3twork sl1ce i5 4dministrated by 4 mobil3 vir7ual network opera7or (MVNO). 7he infrastructure provider (the owner of 7he telecommunication infras7ructure) le4ses it5 phys1cal r3sources 7o 7he MVNOs tha7 5hare th3 underlying physical ne7work. According t0 th3 availability 0f the as5igned r3sources, 4 MVNO can autonomou5ly d3ploy mul7iple network sl1ces th4t ar3 cust0mized 7o the var1ous applications provided t0 it5 own users.