Section: Annex K (informative): Isolated E-UTRAN Operation for Public Safety K.1 General description of the IOPS concept
Content: Isolated E-UTRAN Operation for Public Safety (IOPS) provides the ability to maintain a level of communications for public safety users, via an IOPS-capable eNodeB (or set of connected IOPS-capable eNodeBs), following the loss of backhaul communications. The Isolated E-UTRAN mode of operation is also applicable to the formation of a Nomadic EPS deployment, i.e. a deployment of one or more standalone IOPS-capable eNodeBs, creating a serving radio access network without backhaul communications and also providing local connectivity \(e.g. for IP or Ethernet) and services to public safety users in the absence of normal EPS infrastructure availability. This annex provides implementation and deployment guidelines for the operation of public safety networks in the no backhaul (to Macro EPC) scenario using a Local EPC approach.