Ericsson Certified Associate – Radio Access Networks - ECP-362

Sections Section/Objective Title

Section 1 RAN Fundamentals 26%

Objective 1.1 Describe the general RAN architecture

Objective 1.2 Describe the RAN services

Objective 1.3 Describe Radio design principles

Objective 1.4 Describe air interface principles

Objective 1.5 Describe signaling, protocols and layers

Objective 1.6 Describe Radio Network functionalities

Objective 1.7 Describe Radio Network Performance

Section 2 RAN Technologies 27%

Objective 2.1 Describe the fundamentals of GSM

Objective 2.2 Describe the fundamentals of WCDMA

Objective 2.3 Describe the fundamentals of LTE

Section 3 RAN Evolution 10%

Objective 3.1 Identify Ericsson RAN product and services portfol

Objective 3.2

Describe how different radio technologies contribute together to mobile

operators business evolution

Objective 3.3 Identify how multi-RAN products add value to Radio Access Network

Section 4 Radio Base Station and Site Solution 17%

Objective 4.1 Identify Site Solution equipment needed for a RBS site

Objective 4.2 Describe different concepts for in-building coverage and/or capacity

Objective 4.3 Identify ways to reduce site OPEX

Objective 4.4 Identify different RBS types and hardware

Section 5 RAN Transport 11%

Objective 5.1 Describe the architecture and interfaces

Objective 5.2 Describe synchronization solutions

Objective 5.3 Describe values with IP RAN

Objective 5.4 Describe transport characteristics, QoS, and capacity

Section 6 RAN Controllers 9%

Objective 6.1 Describes the role of the BSC

Objective 6.2 Describes the role of the RNC

Ericsson Certified Associate – Radio Network Design - ECP-371

Sections Section/Objective Title

Section 1 Cellular Technologies 17%

Objective 1.1 Identify cellular industry standards

Objective 1.2 Identify fundamental radio concepts

Objective 1.3 Identify cellular technologies used

Objective 1.4 Describe call procedures

Objective 1.5 Identify interference management concepts

Section 2 Air Interface Concepts 22%

Objective 2.1 Describe power calculations

Objective 2.2 Describe link budget concepts

Objective 2.3 Identify propagation concepts

Objective 2.4 Identify radio channel characteristics

Section 3 Cellular Network Architecture 11%

Objective 3.1 Identify cellular network architectures

Objective 3.2 Identify base station architectures

Objective 3.3 Identify in-building system (IBS) concepts

Section 4 Radio System Components 18%

Objective 4.1 Describe antenna concepts

Objective 4.2 Identify radio frequency systems and components

Objective 4.3 Describe radio system performance concepts

Section 5 Radio Network Design 22%

Objective 5.1 Identify high level radio network design concepts

Objective 5.2 Describe dimensioning concepts

Objective 5.3 Identify radio network performance management concepts

Objective 5.4 Identify radio network tuning (optimization) concepts

Section 6 Radio Network Design Tools 10%

Objective 6.1 Describe coverage planning tools

Objective 6.2 Describe frequency planning tools

Ericsson Certified Associate – Radio Network Optimization - ECP-381

Sections Section/Objective Title

Section 1 Cellular Technology 10%

Objective 1.1 Identify cellular industry standards

Objective 1.2 Identify cellular technologies used

Objective 1.3 Describe call procedures

Section 2 Cellular Network Architecture 10%

Objective 2.1 Identify cellular network architectures

Objective 2.2 Identify base station architectures

Objective 2.3 Describe base station RF and baseband components

Section 3 Cellular Network Fundamental Concepts 30%

Objective 3.1 Describe GSM concepts

Objective 3.2 Describe WCDMA/CDMA concepts

Objective 3.3 Describe LTE concepts

Section 4 Optimization Activities and Procedures 35%

Objective 4.1 Identify input data sources for optimization activities

Objective 4.2 Identify installation and external interference troubleshooting

Objective 4.3 Describe physical RF optimization

Objective 4.4 Describe GSM optimization procedures

Objective 4.5 Identify Ericsson GSM features

Objective 4.6 Describe WCDMA optimization procedures

Objective 4.7 Identify Ericsson WCDMA features

Objective 4.8 Describe LTE optimization procedures

Objective 4.9 Identify Ericsson LTE features

Section 5 Radio Network Optimization Tools 15%

Objective 5.1 Describe drive test tools used for optimization

Objective 5.2 Describe physical RF cell planning optimization tools

Objective 5.3 Describe RRM optimization tools

Objective 5.4 Describe SON tools

Objective 5.5 Describe frequency planning optimization tools

Objective 5.6 Describe neighbor and BSIC/SC/ PCI/PRACH planning optimization tools

Objective 5.7 Describe radio monitoring and troubleshooting tools

Radio Network Optimization (RNO) Troubleshooting Tools

TEMS Investigation TEMS Investigation is a drive test tool within the TEMS product family. It consists of a TEMS mobile station, a PC with the TEMS Investigation software and a GPS receiver. The uplink and downlink information on the air-interface is monitored and recorded together with the positioning data from the GPS. TEMS Investigation, here referred to as TEMS, is a very powerful tool for field measurements during troubleshooting in specific areas of the network.

MTR Mobile Traffic Recording (MTR) records the events and measurements on both the uplink and downlink connected to a certain subscription, which can be useful when a subscriber complains and the cause is to be investigated. MTR is also very useful together with TEMS. From TEMS geographical information can be retrieved but not from MTR.

CER Channel Event Recording (CER) measures interference on the frequencies defined in the cell and is used when the performance of the channel allocation strategy is investigated. Idle Channel Measurement (ICM) or Differential Channel Allocation (DCA) is required for this recording,

CTR Cell Traffic Recording (CTR) collects data about connections in specific cells. Certain events can be used as triggers and all communication on up- and downlink is recorded. CTR could be used if there are specific problems found in any cell, such as an abnormal number of Traffic Channel (TCH) drops.

GMLOG The GPRS/EGPRS Mobile Logging (GMLOG) function logs protocol information in the RLC/MAC and the BSSGP protocols for one whole cell or four individual mobiles. All relevant information is logged together with related internal events. The Mobile Logging function is

a valuable function for GPRS/EGPRS verification and detailed troubleshooting purposes. The function can be used by the operator staff to verify network functions and characteristics. The function gives the possibility to correlate A-bis and Gb-data. It displays BSC internal events, which is not possible with external protocol analyzers. The logging capability is high, due to the fact that the logged data is directly transferred from the RPP to the logging client via Ethernet.

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Measurement Tools for Radio Network Optimization (RNO)

Measurement Tools for Radio Network Optimization (RNO)

STS: Statistics and Traffic Measurement Subsystem (STS) is implemented in the BSC (and MSC). It gives statistics about events in different parts of the system such as cells and equipment. By continuously supervising the results from STS the operator can obtain a very good overview of the radio network performance which can help to detect problems early. For further information,

MRR Measurement Result Recording (MRR) collects information from the measurement results sent by the BTSs to the BSC. Information such as RXLEV, RXQUAL etc. is included. The tool is for instance used for routine supervision or for checking specific cells. MRR is a part of the Radio Network Optimization (RNO) package in OSS

TEMS Automatic Tems Automatic is a tool within the TEMS product portfolio, where several special mobile stations are placed in for instance taxis and buses. The set of mobiles are supervised centrally and the measurements are sent directly to this center. TEMS automatic provides the operator with information about subscriber perceived quality from many parts of the network.

R-PMO The real-time performance monitor provides real-time statistics in order to receive instant feedback of performance from sudden changes of the network, either by the network itself (e.g. hardware faults) or by operator initiated changes (i.e. parameter, feature or frequency changes). For operator initiated changes, faster tuning can be achieved. R-PMO also provides a high degree of detailed information, such as timestamps on events, and flexibility, such as user defined reports.

NOX Neighbouring Cell List Optimization Expert (NOX) is a tool meant as a support for the operator for optimization of the neighbouring cell relations. This is done by collecting and handling data from measurement reports, handover statistics and general network configurations. The outcome is suggestions to remove superfluous or add new neighbouring cell relations. The user can set whether the changes should be implemented automatically or require an approval by the user.

FOX Frequency Optimization Expert (FOX) measures for possible interferers in order to find suitable frequencies to define in cells. FOX supplies the operator with suggestions about frequencies at e.g. network/hardware expansions or frequency reallocations.

SYROX Synchronized Radio Network Optimization Expert (SYROX) is a tool intended to support the operator with planning of parameters that control the frequency hopping for a group of Synchronized Cells in order to minimize the interference in the network. Apart from the fact that a group of mutually synchronized cells is required, SYROX also requires that the optional BSS features FAS (FOX recording mode), and Flexible MAIO Management are available.

Read Also Topics:  Radio Network Optimization (RNO) Troubleshooting Tools