Public Land Mobile Network

A public land mobile network (PLMN) is a regulatory term in telecommunications. A PLMN is a network that is established and operated by an administration or by a recognized operating agency (ROA) for the specific purpose of providing land mobile telecommunications services to the public.

A PLMN is identified by the Mobile Country Code (MCC) and the Mobile Network Code (MNC). Each operator providing mobile services has its own PLMN. PLMNs interconnect with other PLMNs and Public switched telephone networks (PSTN) for telephone communications or with internet service providers for data and internet access of which links are defined as interconnect links between providers. These links mostly incorporate SDH digital transmission networks via fibre optic on land and digital microwave links.

Access to PLMN services is achieved by means of an air interface involving radio communications between mobile phones or other wireless enabled user equipment and land based radio transmitters or radio base stations or even fibre optic distributed SDH network between mobile base stations and central stations via SDH equipment (ADMs) with integrated IP network services.

Read more about Public Land Mobile NetworkPublic Switched Telephone Network, Specifications, Services, Architecture, Subsystems, Conclusion

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Public Land Mobile Network - Conclusion
... is essential for the effective working of any wireless network, just like the need for PSTN in wireline networks ... order to perform operation of the GSM system in particular and any wired network in general ...

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