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LTE RPESSIntroduction
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Module Objectives
After completing this module, the participant should be able to:
• List the course contents
•Briefly describe the AMoRE air interface simulator tool forLTE.
• Understand how the RNT_Dim tool covers all thedimensioning phases.
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Module Contents
• RA4120-30A Learning Elements list
• AMoRE simulator
• NSN NPO LTE Dimensioning Tool (RNT_Dim)
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Module Contents
• RA4120-30A Learning Elements list
• AMoRE simulator
• NSN NPO LTE Dimensioning Tool (RNT_Dim)
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RA4120-30A – Learning Elements
LTE/EPC Overview
LTE Air Interface
Radio Planning Principles
Radio Propagation Fundamentals
LTE Power Budget
Radio Planning - Coverage Radio Planning - Capacity
Dimensioning Tool
LTE Performance Simulations
NSN LTE Solution
LTE Deployment Scenarios
Initial Parameters Planning
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Module Contents
• RA4120-30A Learning Elements list
• AMoRE simulator
• NSN NPO LTE Dimensioning Tool (RNT_Dim)
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• AMoRE = System-level simulation (software on Linux PC)
– Multi-cell
– Multi-user
– Fairly accurate PHY/MAC Models
• Capability to support real live applications
– Streaming, Web Browsing, Gaming, VoIP, FTP, MMS, etc.
– Bi-directional (simultaneous Downlink & Uplink simulation)
– E2E Radio protocol stack
– Simulation in real-time
• Online visualization
– e.g. resource allocation, channel conditionperformance parameters
– fast updates down to TTI basis
– interactive reconfiguration of system parameters
• Utilization of AMoRE
– for technology and feature research, demo and training
Advanced Mobile Radio Realtime Experience(AMoRE Demonstrator)
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AMoRE Strengths
Showcases demonstrations of newtechnologies or system features toprovide an early perception of their effect
Provides explanation about the internalworking and resulting impacts of newsystem features to radio experts
It helps to gain early experience on
implementation, performance impactsand dependencies of new systemfeatures
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AMoRE Constraints
• Cellular structure: regular hexagonal grid
• Focus on single cell, surrounding cellsmodelled as synthetic interference sources
• DL interference: full load (100%),or fractional load at random alloc. pattern
• UL interference: same user distributionand transmission pattern as in the target cell(with random time offset between cells)
• Max. 20 users in the target cell,typically only 10 or less for real-time execution
• No mobility between cells
• No state changes (all users in connected state)
• Various traffic types: full buffer (infinite ftp transmission),CBR at configurable packet size and rate,random bursts (exponential packet size and arrival rate) etc.
• Only U-plane traffic on shared channels (PDSCH, PUSCH)
• Control channel load modelled as fixed overhead(and without transmission errors)
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Further characteristics and restrictions of AMoRE
• Not fully aligned with standard or NSN product implementation in all details:
– models are simplified, sometimes even idealized – product configuration parameters may be different or missing
– emphasis on operation principles and their resulting qualitative impacts,including dynamic (cross-feature and cross-layer) interactions
• Focus on system-level impacts of L1 and L2 features (PHY and MAC)
– Link-level behaviour makes use of pre-computed lookup tables
• Snapshot view
– Instantaneous behaviour and performance under current conditions
– Not: long-term statistics over time or over different user placements
Instructive value of AMoRE comes from
• interactive change of system parameters or operating conditions
• and immediate observation of comparative system behaviour
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AMoRE GUI Screenshot
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Module Contents
• RA4120-30A Learning Elements list
• AMoRE simulator
• NSN NPO LTE Dimensioning Tool (RNT_LTE_Dim v2.3.6)
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Link to the tool in ShareNet-IMS
https://sharenet-ims.inside.nokiasiemensnetworks.com/livelink/livelink?func=ll&objId=433607838&objAction=Browse
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RNT LTE Dimensioning Tool Roadmap
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Inputs and course of dimensioning process
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RNT_LTE Dim v2.3.6 Objectives
•To support LTE technology.
•
To provide common network dimensioning path for coverage, capacity andBaseBand calculation.
•To cover Air Interface and BaseBand dimensioning for Flexi BTS product.
•To provide coverage results for assumed bearer types
•To provide load and number of carriers per site for assumed traffic demand
•To enable phase planning
•To enable layers calculation
•To enable multiple areas/clutters calculation
•To enable outdoor and indoor coverage calculations
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