Technical Description - NQA tool Technical...4 3dB NQA tool | Technical Description 2. General Description 3dB Neighbor Quality Assurance tool (3dB NQA tool) consists of a set of functional

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  • 3dB consult NQA tool Technical Description

  • 2

    3dB NQA tool | Technical Description

    Index

    1. 3dB tools .................................................................................................................... 3

    2. General Description ................................................................................................... 4

    3. Need for 3dB NQA tool.............................................................................................. 5

    4. General Description ................................................................................................... 7

    4.1. Inputs and Outputs ............................................................................................ 8

    4.2. Functionalities .................................................................................................10

    4.2.1. Deleting .................................................................................................. 10

    4.2.2. Co-sites ................................................................................................... 11

    4.2.3. Sectorizations ......................................................................................... 11

    4.2.4. Number of Neighbors Limits .................................................................. 11

    4.2.5. Wrong Definitions Correction ................................................................ 12

    4.2.6. Parameterization .................................................................................... 13

    4.2.7. Neighbors definition Checking ............................................................... 13

    4.2.8. Exports Simulation ................................................................................. 14

    5. Output Files formats ...............................................................................................14

    6. Success stories .........................................................................................................16

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    3dB NQA tool | Technical Description

    1. 3dB tools

    3dB consult offers its Customers a wide range of Applications for Processes Automation in Mobile Networks Projects, increasing efficiency, flexibility and quality of

    services, and dramatically reducing delivery times. These Applications (3dB tools) are

    offered both in custom developments suited to Customer needs and seamlessly with

    the services offered by our Company.

    Applications are tailored to each project and allow for changes in near real time,

    allowing services in networks of any provider and any technology available in the

    market.

    These applications are used across the whole portfolio of NDO Services 3dB consult

    offers.

    3dB Optimization tool automates network counters analysis facilitating the identification of network problems and their correction

    3dB Neighbor Quality Assurance tool automates the generation of neighbors integration files according to the network parameterization and the specified input and output formats

    3dB Neighbor Consistency Check tool automates checking and correcting the network definition and parameterization of a cell or group of cells, according to the specified parameters

    3dB Cell Definition tool automates the generation of cell integration data according to the network parameterization and the specified input and output formats

    3dB MAP tool provides a set of Mapinfo tools that automate processing drive test measurements and facilitate the optimization of neighbor relations, frequencies or codes

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    3dB NQA tool | Technical Description

    2. General Description

    3dB Neighbor Quality Assurance tool (3dB NQA tool) consists of a set of functional

    modules ad-hoc developed that allows the automation of those processes involving

    neighborhood relations creation or modification, thereby reducing errors, response

    time and, consequently, costs.

    The Application generates the necessary neighbor relations (deletions and creations)

    to perform the Swap of a list of cells/nodes according to the parameters specified by

    the operator. This Swap may involve 2G, 3G or both technologies nodes.

    3dB NQA tool is a priceless tool to use in Radio Network Technology Renewal Projects,

    where Node Swaps are gradually performed, and cells with different technologies,

    vendors, etc. may co-exist at a given time.

    3dB NQA tool maps the existing neighborhood relations of the cells/nodes before

    Swap (pre-Swap situation) in post Swap nodes. For those new technologies integrated

    at the time of the Swap 3dB NQA tool replicates existing cell relations in pre-Swap co-

    sites as directed by the Operator.

    The use of 3dB NQA tool secures a smooth flow of Swaps, with the right set of

    neighbors being added to every node in the Network at every time, and, thus, avoiding

    major problems derived from setting up nodes lacking neighbors, incorrect ones,

    integration files with more neighbors than those system allows, etc.

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    3dB NQA tool | Technical Description

    3. Need for 3dB NQA tool

    Nowadays Mobile Operators are performing many actions in their Radio Access

    Networks (RAN) to adapt the networks to Broadband Technologies.

    By the end of 2011, total mobile subscriptions reached around 6 billion and are

    expected to reach around 9 billion by the end of 2017. M2M will add to this figure. The

    number of mobile broadband subscriptions reached close to 1 billion, and is predicted

    to reach 5 billion in 20171.

    Projects including RAN Renewals, Rehomings, RAN Sharing, etc. require Neighbor

    Relations redefinition.

    As network technologies increases and different suppliers coexist within Networks,

    Neighbor Relations definitions become more and more complex.

    An average three sector site with GSM900/DCS1800/UMTS (2 carriers) systems may

    have 600 neighbor relations definitions. All these cells should be defined in every

    Operation System Support that coexists in the Network.

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    3dB NQA tool | Technical Description

    Neighbor Relations redefinition has turned out an important key that leads to a

    success in RAN Projects. KPIs (Key Performance Indicators) maintenance and

    improvement, and reduction of downtime in sites are closely linked to efficient

    Neighbor Relations redefinition.

    Plans under demanding time constraints, slow OSS (high OSS load), human mistakes

    in OSS scripts or loading, continuous changes in Network parameterization, last

    minute changes in sites configuration are nowadays a common scenario in Mobile

    Network Projects.

    3dB NQA tool provides a proved successful solution to all this problems.

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    3dB NQA tool | Technical Description

    4. General Description

    The tool's operation is based on mapping the neighbors before Swap (pre-Swap data)

    and generating the files and scripts containing the relationships after swap to load in

    the Network. The nomenclature and parameterization is defined by the Operator.

    A key point in NQA process is to use network exports updated with the current image

    of the network before the Swap.

    3dB NQA tool allows the generation of neighborhoods of these technologies:

    2G: 900MHz and 1800MHz bands

    3G: F1, F2, F3 and U900 (F4)r

    Different neighbors policies are applied to every technology cells, and it is here where

    the Application shows its complete potential in helping the Operator to have a

    consistent network at every stage of the network Swap.

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    3dB NQA tool | Technical Description

    3dB NQA tool

    NRG CC

    Exports

    Swap Lists Daily Inputs

    Basic Inputs

    Network

    Parameterization

    Neighboring

    Policy

    OSS Scripts

    OSS1 OSS2 OSS3

    Exports 95%

    NR

    Loaded

    NRG: Neighbor Relations Generator

    CC: Consistency Check module

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    3dB NQA tool | Technical Description

    4.1. Inputs and Outputs

    3dB NQA tool feeds from two types of Inputs: Network Exports and Operators

    engineering rules, which are built into the Application.

    Exports from right before the Swap, in the following formats for every

    vendor/technology:

    Cell naming rules

    Rules for new technologies neighbors creation

    Parameterization of the neighbor relations

    o Default

    o Conversion of pre-Swap parameterization to post-Swap

    parameterization

    The Output from the tool consists of the files with all correct neighbor relations ready

    to be loaded in the system

    Vendor Technology Format/n Minimum necessary

    Nokia 3G xls/1 WCEL,ADJS,ADJI,ADJG

    Siemens 2G xls/1 ADJC,ADJ3G

    Ericsson 2G txt/4 Cell, GsmRel_Vertical, UCELL, UtranRel,Foreign

    Ericsson 3G xls/1 GsmRelation, UtranRelation, UtranCell, ExternalGsmCell, ExternalUtranCell

    Huawei 3G On course

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    3dB NQA tool | Technical Description

    Vendor Technology Format Example of possible files

    Nokia 3G xml Deleted/Created: ADJI, ADJS, ADJG

    Siemens 2G cli

    Ericsson 2G txt UNIX Deleted/Created: foreign,

    nrel,

    ucell,

    utranrel; Corrections

    foreign,

    ucell

    Ericsson 3G xml Deleted/Created: externalgsmcell,

    gsmrelation,

    externalutrancell,

    utranrelation Corrections

    externalgsmcell

    e