GSM Operation and Support Subsystem-GSM In Communication Systems-Lecture Slides, Slides for Communication Systems. Ankit Institute of Technology and Science

Communication Systems

Description: This lecture is part of lecture series on Communication Systems. It was delivered by Dr. Sachet Khatri at Ankit Institute of Technology and Science. It includes: GSM, Operation, Support, Subsystem, Maintenance, Network, Management, Center, Performance, Traffic, Data, Acquisition, Interfaces
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Operation and Support Subsystem
• OSS consists of two entities not fully specified
in GSM. They are
– Operation and Maintenance Center (OMC)
– Network Management Center (NMC)
• Performs alarm handling, fault management,
performance management, configuration
management, traffic data acquisition, activate
and deactivate functions, and long term
• Normally centralized in a network.
Open Interfaces
• A-Interface ---- between BSC and MSC, E1 link.
• Abis-Interface ---- between BTS and BSC using LADP
(Link Access Data Protocol) protocol.
• B-Interface ---- between MSC and VLR
• C-Interface ---- between MSC and HLR
• D-Interface ---- between HLR and VLR
• E-Interface ---- between MSCs
• F-Interface ---- between MSC and EIR
• Um-Interface ---- between MSS and BSS.
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