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Ericsson - RAN OSS Radio Access Networks - Technical Certification overview RAN OSS Knowledge objective, the candidate should be able to identify and describe: The role of OSS in Ericsson Business Support System, the products, functionalities and features: OSS-RC, ENIQ Event, ENIQ Statistics, SON, ENM, etc. Main advantages/values as well as impact on RAN performance and OPEX reduction. Importance of OSS Ericsson Network Manager Total Network Performance The Importance of OSS in Self Organizing Networks Key SON Features for the Mobile Domain SON Overview SON detailed functionality SON based GSM Spectrum Management OSS Architecture Overview OSS in Modern Networks   OSS-RC Overview (WBL) OSS-RC Applications Overview - OSS-RC Features and Roadmap (Video) OSS-RC Functionality for LTE (Centra) 

RAN Fundamentals Knowledge objective, within this radio technical competence area the candidate should be able to identify and describe the followings: - The general RAN architecture: Nodes, UE categories, RAN standards, etc. - Radio design principles: Dimensioning, link budget for radio coverage, multipath propagation, path loss predictions, propagation models and tuning, traffic models, etc - Air interface principles: Radio channel concept, modulations, spectral efficiency, FDD / TDD, transmission and reception, multiplex access technique principles, mobile technology differences, frequency, voice coding, basic antenna system, dB, dBm, dBi, etc. - Signaling, protocols and layers: Radio messages, layers, interaction, basic protocols, etc. - Radio network basic functionalities: mobility, idle mode, call set-up, radio resource mgmt, etc. - RAN performance: Accessibility, retain ability, integrity, latency and throughput, counter & KPI’s, energy consumption reductio...

Overview – Ericsson RAN - Radio Access Networks Associate Certification RAN Fundamentals ·          Describe general RAN architecture ·          Describe radio design principles ·          Describe air interface principles ·          Describe signaling, protocols and layers ·          Describe radio network basic functionalities ·          Describe RAN performance LTE RAN Technology ·          Describe the technology and characteristics of LTE RAN ·          Describe the products & solutions, functionality and features ·          Describe main advantages/values. WCDMA RAN Technology ·   ...

The LTE RAN consists of these parts: §    RBS §    OSS-RC RAN components §    Interconnecting IP transport network The following figure shows the logical structure of a single RBS in LTE RAN and how it interconnects with other components of LTE RAN: Logically, each RBS is comprised of sectors, a digital unit, and a support system. Each sector is connected to one or a number of antenna unit groups. Connection to other RAN and core network elements is provided by the IP transport infrastructure. In some implementations, common elements of the RBS can be shared with other technologies such as WCDMA or GSM. Refer to RBS Configurations for further details. The following list defines terms used to describe parts of the LTE RBS: Antenna Unit Group An Antenna Unit Group (AUG) is the logical structure that includes all details of an antenna and associated equipment. This includes the antenna, and an...

WCDMA RAN WCDMA RAN is a part of the 3rd generation (3G) mobile system, and comprises: OSS-RC RNC RANAG RBS WCDMA RAN has interfaces towards the Core Network (CN), and towards the external Network Management Systems (NMS). WCDMA RAN provides Radio Access Bearers (RAB) between the CN and the subscriber's User Equipment (UE) for speech, data, and multimedia services. The Network Elements (NEs) RNC, RANAG, and RBS provide and manage the data links between WCDMA RAN and the UE. The links between the NEs in WCDMA RAN carry the user data within WCDMA RAN. These physical links are also used to carry O&M data. See figure for an overview of WCDMA RAN.