Edoc.pub_03-rn33003en50gla1-mcrnc-architecture-and-configur.pdf

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mcRNC Architecture and Configurations Module Objectives • Describe mcRNC architecture and configurations. • List mcRNC functional units. • Describe mcRNC hardware items and interfaces. • Explain signaling and data flow in mcRNC. • Describe redundancy system in mcRNC. • Describe the different capacity steps in the mcRNC. • Describe the mcRNC site solutions. mcRNC architecture and configurations mcRNC overview The Multicontroller Radio Network Controller (mcRNC) is based on new, fault- tolerant, future proof Multicontroller Platform. The main function of the mcRNC is to control and manage the Radio Access Network (RAN) and radio channels. The mcRNC is designed for efficient use of radio resources as well as easy installation, operation and maintenance. It is optimized for all-IP network environment. Figure 1: mcRNC unit Use of Multi-controller platform is common with Multicontroller BSC (mcBSC) and Multicontroller Transcoder (mcTC) for smooth upgrade from Global System for Mobile Communications (GSM) to Wideband Code Division Multiple Access (WCDMA). It is based on easily installable, standard-sized, compact modules. Minimum configuration is of two modules. It is expandable through capacity licenses and addition of modules. Two, four, six, and eight modules are possible. Following are the benefits of mcRNC: mcRNC Architecture and Configurations © Nokia Solutions and Networks. All rights reserved. 1
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Figure 2: mcRNC benefits mcRNC differences with IPA-RNC The following illustration brings out the difference between the mcRNC and the IPA- RNC: Figure 3: mcRNC differences with IPA-RNC mcRNC in comparison to IPA-RNC Figure 4: mcRNC in comparison to IPA-RNC Following is a description of the mcRNC in comparison to the IPA-RNC: Small size Low Hardware (HW) price Easy installation (75% shorter commissioning time) © Nokia Solutions and Networks. All rights reserved. 2
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Improved product architecture enabling easy fault diagnostics and bug fixing as well as shorter release lead times Low power consumption Flexible network building and topology IP interfaces only mcRNC HW architecture The major architectural change with the mcRNC is the move from multi-subrack blade system to a few identical rack mount modules. Depending on the capacity needs, one mcRNC can consist of two up to several modules. A multicontroller module is tightly integrated and has only a few field-replaceable parts. The key enablers of this approach are Internet Protocol (IP)/Ethernet technology and advanced CPU technology. They simplify Network Element (NE) architecture especially when IP proliferates in mobile networks. The new hardware and software platform allows new, optimized placement of the RNC functionalities in the system. The mcRNC consists of maximum eight 4U rack mount boxes, interconnected by 10Gbps 10-gigabit Attachment Unit Interface (XAUI) cables.
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