Network sharing is emerging as a mechanism for operators to substantially and sustainably improve network costs and to efficiently utilize network capacity. The traditional model of single ownership of all network layers and elements is being challenged and more and more operators are adopting network sharing as a means of cutting the heavy costs involved in initial roll-out, capital expenditure (CAPEX) and operational expenditure (OPEX).
In general, an increasing number of operators are sharing their mobile networks. Main arguments presented are:
Increased rollout speed.
Quickly expanding coverage to meet customer demand for wider coverage.
Sharing low traffic areas.
Sharing high license burdens.
Lower CAPEX and OPEX.
Network sharing has some major implications on the operations of the network. Alignment on operational priorities, common network planning/evolution strategy, sharing end user data/subscriber data, sharing performance data, alarms etc. in the shared network need to be considered carefully. Privacy, security and competitive information are also important for the operations of a shared network.
The present document describes concepts and high-level requirements for the Operations, Administration, Maintenance and Provisioning (OAM&P) of network sharing.
Network sharing scenarios considered in the present document are Multiple Operator Core Network (MOCN) and Gateway Core Network (GWCN) for GERAN, UTRAN and E-UTRAN, as defined in TS 23.251 , and Multiple Operator Core Network (MOCN) for NG-RAN as defined in TS 23.501.
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
For the purposes of the present document, the terms and definitions given in TS 32.101, TS 32.102 and TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TS 32.101, TS 32.102 and TR 21.905, in that order.
Master Operator (MOP):
In Radio Access Network (RAN) and/or Core Network (CN) sharing scenarios, deployment and daily operation of shared network elements are entrusted to a single Actor, called the Master Operator. The Master Operator provides network and OAM&P services to other Operators, called Participating Operators (POPs). The Master Operator is the only one to have a direct OAM&P connection from its Domain Manager (DM) to the shared network elements.
Participating Operator (POP):
Participating Operators are service providers who share, alongside other Participating Operators, the network (RAN and/or CN) facilities provided by the Master Operator. According to TS 36.300 up to 6 operators can share a RAN.
Master Operator Network Manager (MOP-NM):
Network Manager enabling the Master Operator to manage the shared RAN and/or shared CN.
Master Operator Shared CN DM (MOP-SC-DM):
Domain Manager enabling the Master Operator to manage the Shared CN.
Master Operator Shared RAN DM (MOP-SR-DM):
Domain Manager enabling the MOP to manage the Shared RAN.
Participating Operator CN DM (POP-CORE-DM):
Domain Manager enabling a Participating Operator to manage its own (not shared) Core Network.
Participating Operator Network Manager (POP-NM):
Network Manager enabling a Participating Operator to manage its own (not shared) network and its portion of the shared network.
Participating Operator RAN DM (POP-RAN-DM):
Domain Manager enabling a Participating Operator to manage its own (not shared) RAN.
Managed resources in a shared Radio Access Network (RAN) environment:
Shared RAN (S-RAN):
A set of Radio Access Network elements shared among Participating Operators.
Managed resources in a shared Core Network (CN) environment:
Shared CN (S-CORE):
A set of Core Network elements shared among Participating Operators. It may or may not include all core network elements. For example, the Participating Operators may share only the MMEs while having independent S/P GWs.
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
Allocation and Retention Priority
Guaranteed Bit Rate
Gateway Core Network
Minimization of Drive Tests
Multiple Operator Core Network
Master Operator Network Manager
Master Operator Shared CN DM
Master Operator Shared RAN DM
Next Generation Converged Operations Requirements
Operations, Administration, Maintenance and Provisioning