This document discusses Self-Organizing Network (SON) functions including self-establishment, self-optimization, and self-healing. It provides details on SON structure, functions, operations, and 3GPP specifications. Key points covered include:
- SON aims to make telecommunication networks more efficient through automation of tasks like planning, configuration, optimization and healing.
- Self-establishment handles initial planning and configuration of eNodeBs. Self-optimization continuously optimizes network parameters. Self-healing detects and compensates for faults.
- The document outlines the SON architecture and functions of various 3GPP releases, with focus on self-configuration, neighbor relation optimization, mobility load
The document discusses the requirements and configuration of Inter Frequency Load Balancing (IFLB) in LTE networks. IFLB aims to balance traffic load across cells on different frequencies by offloading user equipment between those cells. Key steps in IFLB include determining cell load, exchanging load information, selecting offload candidates, and handing users over to target cells if their signal quality is sufficient. The document provides guidance on setting parameters that control IFLB behavior and thresholds.
What LTE Parameters need to be Dimensioned and OptimizedHoracio Guillen
How to Dimension user Traffic in 4G networks
What is the best LTE Configuration
Spectrum analysis for LTE System
MIMO: What is real, What is Wishful thinking
LTE Measurements what they mean and how they are used
How to consider Overhead in LTE Dimensioning and What is the impact
How to take into account customer experience when Designing a Wireless Network
The document discusses various LTE measurement parameters and procedures including:
1. The eNB reports a list of detected PRACH preambles and measures timing advance, average RSSI, average SINR, UL CSI, and transport BLER for RRM purposes.
2. UE measurements include CQI, RSRP, and RSRQ while eNB measurements include timing advance, RSSI, SINR, UL CSI, detected preambles, and transport BLER. Inter-RAT measurements are also discussed.
3. Examples of RSRP, RSRQ, and timing advance procedures are provided along with CQI measurement details. PLMN selection, cell selection,
5G-NR (New Radio) is the 5G wireless standard developed by 3GPP to support both sub-6 GHz and mmWave spectrum. It supports three main use cases - enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). 5G-NR can operate in both non-standalone and standalone modes, with non-standalone relying on the existing 4G LTE network for core functionality and standalone operating independently. Key 5G technologies include higher peak data rates up to 20 Gbps, lower latency around 1 ms, support for high mobility up to 500 km/h, and ability to connect a massive number of devices
The document discusses an LTE training course agenda presented by the OAI Project Team. It covers topics including LTE overview, channels in LTE, cell search procedure, system information, and random access procedure. For each topic, it provides outlines, descriptions, and diagrams. The random access procedure section explains its main purpose is to achieve uplink synchronization and assign a unique UE identifier C-RNTI.
1.training lte ran kpi & counters rjilSatish Jadav
This document provides an introduction and overview of key performance indicators (KPIs) and associated counters for monitoring the performance of Samsung LTE networks. It describes accessibility KPIs related to session setup success rates, retainability KPIs like call drop rates, integrity KPIs involving throughput measurements, and mobility KPIs covering handover success rates. Formulas for calculating each KPI are provided along with explanations of relevant counters for each performance measurement area.
This document provides an overview of the LTE1841 Inter Frequency Load Equalization feature. It describes the motivation and goals of the feature, which are to equalize load between inter-frequency cells by maintaining the load difference between partner cells according to a configured delta. The technical details section explains the key aspects of how load is measured and exchanged between cells, how the active mode load equalization state is determined, and the process for candidate UE selection and load equalization execution.
This document provides formulas and proposed targets for key performance indicators (KPIs) related to LTE network monitoring. It includes KPIs for LTE OSS statistics measured at the network level and LTE drive test KPIs measured through field testing. For each KPI, it provides the detailed formula, measurement methodology, and a brief description. The goal is to establish a framework for initial discussion on monitoring LTE network performance.
The document discusses the requirements and configuration of Inter Frequency Load Balancing (IFLB) in LTE networks. IFLB aims to balance traffic load across cells on different frequencies by offloading user equipment between those cells. Key steps in IFLB include determining cell load, exchanging load information, selecting offload candidates, and handing users over to target cells if their signal quality is sufficient. The document provides guidance on setting parameters that control IFLB behavior and thresholds.
What LTE Parameters need to be Dimensioned and OptimizedHoracio Guillen
How to Dimension user Traffic in 4G networks
What is the best LTE Configuration
Spectrum analysis for LTE System
MIMO: What is real, What is Wishful thinking
LTE Measurements what they mean and how they are used
How to consider Overhead in LTE Dimensioning and What is the impact
How to take into account customer experience when Designing a Wireless Network
The document discusses various LTE measurement parameters and procedures including:
1. The eNB reports a list of detected PRACH preambles and measures timing advance, average RSSI, average SINR, UL CSI, and transport BLER for RRM purposes.
2. UE measurements include CQI, RSRP, and RSRQ while eNB measurements include timing advance, RSSI, SINR, UL CSI, detected preambles, and transport BLER. Inter-RAT measurements are also discussed.
3. Examples of RSRP, RSRQ, and timing advance procedures are provided along with CQI measurement details. PLMN selection, cell selection,
5G-NR (New Radio) is the 5G wireless standard developed by 3GPP to support both sub-6 GHz and mmWave spectrum. It supports three main use cases - enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). 5G-NR can operate in both non-standalone and standalone modes, with non-standalone relying on the existing 4G LTE network for core functionality and standalone operating independently. Key 5G technologies include higher peak data rates up to 20 Gbps, lower latency around 1 ms, support for high mobility up to 500 km/h, and ability to connect a massive number of devices
The document discusses an LTE training course agenda presented by the OAI Project Team. It covers topics including LTE overview, channels in LTE, cell search procedure, system information, and random access procedure. For each topic, it provides outlines, descriptions, and diagrams. The random access procedure section explains its main purpose is to achieve uplink synchronization and assign a unique UE identifier C-RNTI.
1.training lte ran kpi & counters rjilSatish Jadav
This document provides an introduction and overview of key performance indicators (KPIs) and associated counters for monitoring the performance of Samsung LTE networks. It describes accessibility KPIs related to session setup success rates, retainability KPIs like call drop rates, integrity KPIs involving throughput measurements, and mobility KPIs covering handover success rates. Formulas for calculating each KPI are provided along with explanations of relevant counters for each performance measurement area.
This document provides an overview of the LTE1841 Inter Frequency Load Equalization feature. It describes the motivation and goals of the feature, which are to equalize load between inter-frequency cells by maintaining the load difference between partner cells according to a configured delta. The technical details section explains the key aspects of how load is measured and exchanged between cells, how the active mode load equalization state is determined, and the process for candidate UE selection and load equalization execution.
This document provides formulas and proposed targets for key performance indicators (KPIs) related to LTE network monitoring. It includes KPIs for LTE OSS statistics measured at the network level and LTE drive test KPIs measured through field testing. For each KPI, it provides the detailed formula, measurement methodology, and a brief description. The goal is to establish a framework for initial discussion on monitoring LTE network performance.
1. The document discusses NSA mobility management for Huawei's 5G network, including procedures for adding, changing, and releasing the secondary node (SgNB).
2. Key procedures covered include SgNB addition triggered by the MeNB, intra-SgNB and inter-SgNB PSCell changes, and intra-MeNB and inter-MeNB handovers.
3. NSA mobility is anchored to the LTE network, with the eNodeB delivering NR measurement configurations and processing measurement reports.
Ericsson important optimization parametersPagla Knight
The document lists important optimization parameters for Ericsson including parameters related to system configuration, capacity management, directed retry, handover, HSDPA/EUL, IRAT, and idle mode selection and reselection. It provides descriptions of over 50 parameters that control aspects such as power levels, admission limits, thresholds for cell reselection, and criteria for measurements.
The document discusses LTE system signaling procedures. It begins with objectives of understanding LTE architecture, elementary procedures of interfaces like S1, X2 and Uu, and procedures for service setup, release and handover. It then covers topics like system architecture, bearer service architecture, elementary procedures on Uu including connection establishment and release, and procedures on S1 and X2 interfaces. The document aims to help readers understand LTE signaling flows and procedures.
This document provides an overview of LTE functionalities and features. It begins with background on LTE development and standardization. It then describes the LTE network elements and interfaces, including the radio interface between UE and eNB. The document reviews the RRM framework and lists key RRM features, providing status updates on which features are ready in the current release or planned for future releases. It also includes roadmaps showing the planned features and timeline for LTE releases. The document appears to be an internal presentation on LTE technologies and the Nokia Siemens Networks product roadmap.
1. The document discusses key performance indicators (KPI) for LTE networks in Korea, which has very high standards for call setup success rates, call drop rates, and call completion rates.
2. It provides an overview of the LTE camping procedure, including system selection, cell selection criteria, and different cell categories that UEs can camp on.
3. It explains the LTE random access procedure for both contention-based and non-contention based access, including the four-step process and different preamble formats.
3GPP SON Series: Mobility Load Balancing (MLB)3G4G
This SON tutorial is part of the 3GPP Self-Organizing Networks series (#3GPPSONSeries). In this part we discuss the load balancing feature that was introduced as part of 3GPP Release-8 LTE. We also look at the enhancements in Release-9 and then the extension of this procedure to GSM (2G) and UMTS (3G) as part of Release-10.
All our #3G4G5G slides and videos are available at:
Videos: https://www.youtube.com/3G4G5G
Slides: https://www.slideshare.net/3G4GLtd
5G Page: https://www.3g4g.co.uk/5G/
Free Training Videos: https://www.3g4g.co.uk/Training/
SON Page: https://www.3g4g.co.uk/SON/
- The RRC setup procedure success rate (RRC SR%) measures the percentage of successful RRC connection setups. Failures can be due to resource limitations, radio conditions, or configuration issues.
- The E-RAB setup success rate (E-RAB SR%) measures the percentage of successful data radio bearer setups. Failures can be due to radio resource constraints, transport issues, or security problems.
- The circuit-switched fallback success rate (CSFB SR%) measures the percentage of successful handovers from LTE to GSM or UMTS for circuit-switched calls. This allows LTE networks to support legacy telephone services.
The document discusses the X2 interface and X2 handover procedure in LTE networks. The X2 interface connects two neighboring eNodeBs and establishes an X2 connection through the X2 setup procedure. The X2 handover procedure allows handing over a UE's connection from a source eNodeB to a target eNodeB, involving preparation where the target allocates resources and the UE connects to it, and execution including a path switch to route data to the target eNodeB. Key information like UE context and bearers is exchanged between eNodeBs through the X2 interface to enable smooth handover.
1. The document provides Huawei's mobility strategy recommendations for Maxis' LTE network, which involves LTE, UMTS, and GSM networks.
2. The strategy addresses cell selection and reselection procedures in both idle and connected modes between the different RATs and frequencies. It aims to optimize coverage and load balancing through configuration of various priority and threshold parameters.
3. Over multiple revisions from 2012 to 2018, the strategy has been updated based on trials and discussions between Maxis and Huawei to refine the parameter settings and push more users to preferred frequencies like L2600.
This document provides an overview of tests for installing and maintaining LTE eNodeB base stations. It describes the key tests to check characteristics like downlink and uplink speeds, channel bandwidths, frequency bands, frame structure, and modulation schemes. The document then explains specific tests to check aspects like transmission power, occupied bandwidth, spectrum emission mask, ACLR, spurious emissions, and modulation quality of control and data channels. It provides procedures for configuring a tester and interpreting results for each test.
The document discusses LTE network architecture including nodes like the eNodeB, MME, SGW and PGW, and their functions. It also outlines the basic LTE call flows for initial call setup, detach procedures, idle-to-active transitions, and handovers. Key call flow steps include attach request, authentication, context setup, and establishment of bearers between the UE and PDN gateway.
This document discusses LTE network coverage optimization. It identifies six main causes of coverage problems: incorrect network planning, deviations from planned site positions, differences between actual and planned parameters, changes to the wireless environment, new coverage requirements, and increased network load. The document notes that coverage optimization aims to eliminate downlink coverage issues like holes, weakness, overshooting, and lack of a dominant cell, as well as optimize uplink coverage, balance uplink/downlink coverage, reduce interference, and improve handovers. Common optimization methods include antenna, feeder and parameter adjustments.
A short presentation looking at different ways in which mobile cellular network sharing is done. Different options including MORAN (Multiple Operator Radio Access Network), MOCN (Multiple Operator Core Network) and GWCN (Gateway Core Network) are discussed.
This document discusses network optimization techniques including:
1. Monitoring key performance indicators (KPIs) such as transmitted carrier power, code tree allocation, and channel element allocation to identify issues.
2. Performing analysis of KPIs to locate root causes of failures in specific network elements or cells.
3. Proposing solutions such as adjusting signal transmission power limits, code tree rearrangement, or adding network capacity to address problems identified through monitoring and analysis.
Throughput calculation for LTE TDD and FDD systemsPei-Che Chang
This document discusses the calculation of throughput for LTE TDD and FDD systems. It explains that LTE systems have configurable channel bandwidth and modulation schemes, unlike fixed CDMA systems. The document then provides an example calculation of throughput for a 20 MHz bandwidth LTE FDD system using 100 resource blocks, 64QAM modulation, and 4x4 MIMO. It calculates the downlink throughput as approximately 300 Mbps and uplink as 75 Mbps after accounting for overhead. Similar calculations are shown for LTE TDD systems using different frame configurations.
This document provides an overview and detailed descriptions of Circuit Switched Fallback (CSFB) features in an evolved Radio Access Network (eRAN). It describes CSFB procedures for falling back from an LTE network to UTRAN or GERAN networks to support circuit switched services like voice calls. The document includes sections on CSFB architectures, handover decisions and executions, related interfaces, engineering guidelines, parameters and troubleshooting.
5G networks use a split architecture where the base station functions are split into centralized and distributed units. The central unit controls the radio resources and handles signaling, while distributed units perform scheduling and handle lower layer protocols. This allows flexible deployment and reduced latency. Control and user plane functions can also be separated into different central units for further optimization. The split architecture evolves from 4G to allow decreased fronthaul needs while meeting latency demands.
An Introduction to Self-Organizing Networks (SON)eXplanoTech
This document provides an overview of Self-Organizing Networks (SON) and their key features and functions. It discusses three main aspects of SON: self-configuration, self-optimization, and self-healing. Specific SON techniques covered include automatic neighbor relations, mobility load balancing, mobility robustness optimization, coverage and capacity optimization, and minimization of drive testing. The document also outlines the SON architecture and features defined in 3GPP Releases 8-10.
4G-LTE Paging is made simple and easy. How is paging handled in NAS, RRC and Physical layer. With DRX cycle, how will UE NOT miss any paging and synchronised? How to implement paging in RRC?
This document provides an overview of an LTE System Manager (LSM) which is an Element Management System (EMS) that can manage eNodeB devices. It describes the key functions and components of the LSM including configuration management, fault management, performance management, software management, security management, and high availability features using redundancy. The document also outlines the interface structure and basic operations of the LSM management system.
Chap 3. e nb hardware description stc_ed01_0901sivakumar D
The document provides specifications and descriptions of the components and functions of a distributed radio access network (RAN) system including a digital unit (DU) and remote radio head (RRH).
The DU performs baseband processing and contains a management board and up to 3 channel cards. The RRH consists of RF front-end components including power amplifiers and antennas. It connects to the DU via optical fiber links.
The system supports LTE functionality with capabilities like 4Tx4Rx per RRH, 20MHz channel bandwidth, and synchronization via an internal GPS clock module. Installation diagrams show configurations for mounting multiple RRHs on poles, floors, or walls to provide coverage for 1 or 3 sectors.
1. The document discusses NSA mobility management for Huawei's 5G network, including procedures for adding, changing, and releasing the secondary node (SgNB).
2. Key procedures covered include SgNB addition triggered by the MeNB, intra-SgNB and inter-SgNB PSCell changes, and intra-MeNB and inter-MeNB handovers.
3. NSA mobility is anchored to the LTE network, with the eNodeB delivering NR measurement configurations and processing measurement reports.
Ericsson important optimization parametersPagla Knight
The document lists important optimization parameters for Ericsson including parameters related to system configuration, capacity management, directed retry, handover, HSDPA/EUL, IRAT, and idle mode selection and reselection. It provides descriptions of over 50 parameters that control aspects such as power levels, admission limits, thresholds for cell reselection, and criteria for measurements.
The document discusses LTE system signaling procedures. It begins with objectives of understanding LTE architecture, elementary procedures of interfaces like S1, X2 and Uu, and procedures for service setup, release and handover. It then covers topics like system architecture, bearer service architecture, elementary procedures on Uu including connection establishment and release, and procedures on S1 and X2 interfaces. The document aims to help readers understand LTE signaling flows and procedures.
This document provides an overview of LTE functionalities and features. It begins with background on LTE development and standardization. It then describes the LTE network elements and interfaces, including the radio interface between UE and eNB. The document reviews the RRM framework and lists key RRM features, providing status updates on which features are ready in the current release or planned for future releases. It also includes roadmaps showing the planned features and timeline for LTE releases. The document appears to be an internal presentation on LTE technologies and the Nokia Siemens Networks product roadmap.
1. The document discusses key performance indicators (KPI) for LTE networks in Korea, which has very high standards for call setup success rates, call drop rates, and call completion rates.
2. It provides an overview of the LTE camping procedure, including system selection, cell selection criteria, and different cell categories that UEs can camp on.
3. It explains the LTE random access procedure for both contention-based and non-contention based access, including the four-step process and different preamble formats.
3GPP SON Series: Mobility Load Balancing (MLB)3G4G
This SON tutorial is part of the 3GPP Self-Organizing Networks series (#3GPPSONSeries). In this part we discuss the load balancing feature that was introduced as part of 3GPP Release-8 LTE. We also look at the enhancements in Release-9 and then the extension of this procedure to GSM (2G) and UMTS (3G) as part of Release-10.
All our #3G4G5G slides and videos are available at:
Videos: https://www.youtube.com/3G4G5G
Slides: https://www.slideshare.net/3G4GLtd
5G Page: https://www.3g4g.co.uk/5G/
Free Training Videos: https://www.3g4g.co.uk/Training/
SON Page: https://www.3g4g.co.uk/SON/
- The RRC setup procedure success rate (RRC SR%) measures the percentage of successful RRC connection setups. Failures can be due to resource limitations, radio conditions, or configuration issues.
- The E-RAB setup success rate (E-RAB SR%) measures the percentage of successful data radio bearer setups. Failures can be due to radio resource constraints, transport issues, or security problems.
- The circuit-switched fallback success rate (CSFB SR%) measures the percentage of successful handovers from LTE to GSM or UMTS for circuit-switched calls. This allows LTE networks to support legacy telephone services.
The document discusses the X2 interface and X2 handover procedure in LTE networks. The X2 interface connects two neighboring eNodeBs and establishes an X2 connection through the X2 setup procedure. The X2 handover procedure allows handing over a UE's connection from a source eNodeB to a target eNodeB, involving preparation where the target allocates resources and the UE connects to it, and execution including a path switch to route data to the target eNodeB. Key information like UE context and bearers is exchanged between eNodeBs through the X2 interface to enable smooth handover.
1. The document provides Huawei's mobility strategy recommendations for Maxis' LTE network, which involves LTE, UMTS, and GSM networks.
2. The strategy addresses cell selection and reselection procedures in both idle and connected modes between the different RATs and frequencies. It aims to optimize coverage and load balancing through configuration of various priority and threshold parameters.
3. Over multiple revisions from 2012 to 2018, the strategy has been updated based on trials and discussions between Maxis and Huawei to refine the parameter settings and push more users to preferred frequencies like L2600.
This document provides an overview of tests for installing and maintaining LTE eNodeB base stations. It describes the key tests to check characteristics like downlink and uplink speeds, channel bandwidths, frequency bands, frame structure, and modulation schemes. The document then explains specific tests to check aspects like transmission power, occupied bandwidth, spectrum emission mask, ACLR, spurious emissions, and modulation quality of control and data channels. It provides procedures for configuring a tester and interpreting results for each test.
The document discusses LTE network architecture including nodes like the eNodeB, MME, SGW and PGW, and their functions. It also outlines the basic LTE call flows for initial call setup, detach procedures, idle-to-active transitions, and handovers. Key call flow steps include attach request, authentication, context setup, and establishment of bearers between the UE and PDN gateway.
This document discusses LTE network coverage optimization. It identifies six main causes of coverage problems: incorrect network planning, deviations from planned site positions, differences between actual and planned parameters, changes to the wireless environment, new coverage requirements, and increased network load. The document notes that coverage optimization aims to eliminate downlink coverage issues like holes, weakness, overshooting, and lack of a dominant cell, as well as optimize uplink coverage, balance uplink/downlink coverage, reduce interference, and improve handovers. Common optimization methods include antenna, feeder and parameter adjustments.
A short presentation looking at different ways in which mobile cellular network sharing is done. Different options including MORAN (Multiple Operator Radio Access Network), MOCN (Multiple Operator Core Network) and GWCN (Gateway Core Network) are discussed.
This document discusses network optimization techniques including:
1. Monitoring key performance indicators (KPIs) such as transmitted carrier power, code tree allocation, and channel element allocation to identify issues.
2. Performing analysis of KPIs to locate root causes of failures in specific network elements or cells.
3. Proposing solutions such as adjusting signal transmission power limits, code tree rearrangement, or adding network capacity to address problems identified through monitoring and analysis.
Throughput calculation for LTE TDD and FDD systemsPei-Che Chang
This document discusses the calculation of throughput for LTE TDD and FDD systems. It explains that LTE systems have configurable channel bandwidth and modulation schemes, unlike fixed CDMA systems. The document then provides an example calculation of throughput for a 20 MHz bandwidth LTE FDD system using 100 resource blocks, 64QAM modulation, and 4x4 MIMO. It calculates the downlink throughput as approximately 300 Mbps and uplink as 75 Mbps after accounting for overhead. Similar calculations are shown for LTE TDD systems using different frame configurations.
This document provides an overview and detailed descriptions of Circuit Switched Fallback (CSFB) features in an evolved Radio Access Network (eRAN). It describes CSFB procedures for falling back from an LTE network to UTRAN or GERAN networks to support circuit switched services like voice calls. The document includes sections on CSFB architectures, handover decisions and executions, related interfaces, engineering guidelines, parameters and troubleshooting.
5G networks use a split architecture where the base station functions are split into centralized and distributed units. The central unit controls the radio resources and handles signaling, while distributed units perform scheduling and handle lower layer protocols. This allows flexible deployment and reduced latency. Control and user plane functions can also be separated into different central units for further optimization. The split architecture evolves from 4G to allow decreased fronthaul needs while meeting latency demands.
An Introduction to Self-Organizing Networks (SON)eXplanoTech
This document provides an overview of Self-Organizing Networks (SON) and their key features and functions. It discusses three main aspects of SON: self-configuration, self-optimization, and self-healing. Specific SON techniques covered include automatic neighbor relations, mobility load balancing, mobility robustness optimization, coverage and capacity optimization, and minimization of drive testing. The document also outlines the SON architecture and features defined in 3GPP Releases 8-10.
4G-LTE Paging is made simple and easy. How is paging handled in NAS, RRC and Physical layer. With DRX cycle, how will UE NOT miss any paging and synchronised? How to implement paging in RRC?
This document provides an overview of an LTE System Manager (LSM) which is an Element Management System (EMS) that can manage eNodeB devices. It describes the key functions and components of the LSM including configuration management, fault management, performance management, software management, security management, and high availability features using redundancy. The document also outlines the interface structure and basic operations of the LSM management system.
Chap 3. e nb hardware description stc_ed01_0901sivakumar D
The document provides specifications and descriptions of the components and functions of a distributed radio access network (RAN) system including a digital unit (DU) and remote radio head (RRH).
The DU performs baseband processing and contains a management board and up to 3 channel cards. The RRH consists of RF front-end components including power amplifiers and antennas. It connects to the DU via optical fiber links.
The system supports LTE functionality with capabilities like 4Tx4Rx per RRH, 20MHz channel bandwidth, and synchronization via an internal GPS clock module. Installation diagrams show configurations for mounting multiple RRHs on poles, floors, or walls to provide coverage for 1 or 3 sectors.
This document provides an overview of LTE network architecture and technology. It discusses the evolution of LTE from previous standards to meet increasing demands for high data rates. The key aspects covered include LTE network architecture components like eNBs, MMEs, S-GWs and P-GWs; multiple access techniques used in LTE including OFDMA for downlink and SC-FDMA for uplink; frame structure consisting of 10ms radio frames with 0.5ms slots; and channel bandwidths and resource block structure.
This document provides an overview of the LTE physical channel structure and procedures between the eNB and UE. It describes the LTE architecture and introduces the main physical channels including downlink channels like PBCH, PDCCH, PDSCH and uplink channels like PUSCH, PUCCH, PRACH. It explains the channel mapping and provides examples of the initial access procedure and synchronization signal transmission. Key concepts covered are radio interface protocol stacks, channel coding, multiple access, and reference signals.
Chap 4. call processing and handover.engsivakumar D
This document provides a 3-sentence summary of the key information:
The document outlines the network architecture and protocol stacks used in LTE networks, including components like the UE, eNB, MME, S-GW and P-GW. It describes the software architecture of eNBs and the call processing blocks. It also summarizes several important procedures in LTE networks like attach, detach, handover, and basic parameter configuration.
Self-Configuration and Self-Optimization NetworkPraveen Kumar
The document discusses self-configuration and self-optimization capabilities in cellular networks. It describes functions like dynamic configuration of interfaces between network elements, automatic neighbor relation functions to detect neighboring cells, and framework for physical channel identification selection. It also covers self-optimization aspects like energy saving, interference reduction, mobility robustness optimization, load balancing optimization, and interference coordination.
Self optimizing networks-benefits of son in lte-july 2011navaidkhan
This document provides an overview of Self-Organizing Network (SON) capabilities for LTE networks as standardized in 3GPP Release 8, 9, and 10. It discusses the goals of SON, which are to automate network configuration and optimization to reduce costs and improve performance. Key SON features covered include base station self-configuration, automatic neighbor relations, tracking area planning, load balancing, mobility robustness, interference coordination, and energy savings. The timeline of SON standardization and enhancements across LTE releases is presented. Live results demonstrating benefits of applying SON techniques to HSPA+ networks are described. The document also discusses application of SON to technologies like distributed antenna systems and small cells.
The document discusses self-organizing networks (SON). It defines SON as an automation technology to simplify network management. SON has three main areas: self-configuration, self-optimization, and self-healing. Self-configuration allows for automatic configuration of new base stations. Self-optimization continually adjusts network parameters to optimize coverage, capacity, and interference. Self-healing enables automatic detection and resolution of faults to temporarily work around problems until permanent solutions are implemented. The benefits of SON include reduced costs, improved network performance and user experience, and more optimized use of resources.
This document summarizes progress made by the NFV ISG (Network Functions Virtualization Industry Specification Group) over the past year. It notes that the NFV ISG has grown to 235 member companies and will release a new set of influential documents in January 2015. These documents are helping to standardize NFV implementation. The NFV ISG is also encouraging proof of concept demonstrations and research/education to further the open NFV ecosystem. Overall, significant progress has been made in the past two years to advance NFV technologies and their adoption.
The document discusses 4G LTE drive testing. It describes the necessary equipment for drive testing including a notebook, GPS, and LTE dongle. It outlines key LTE radio parameters that are measured like PCI, RSRP, SINR, and MIMO. It also discusses measuring UE state information, throughput, and LTE access procedures including attach requests, random access failures, and E-RAB failures. Finally, it compares the impact of ANR capabilities versus UE capabilities on measuring neighboring cells within and between eNodeBs.
The document discusses applying self-organizing network (SON) and self-healing techniques to both 2G and 4G radio access networks through a unified core network. It describes a system called YateBTS, YateENB, and YateUCN that makes 2G networks more like 4G networks and allows self-organizing and self-healing in both the 2G and 4G RAN. The system directly connects 2G base stations which can then peer with each other similar to LTE, optimize neighbor lists using measurements from devices and congestion reports, and self-heal by detecting offline neighbors and adjusting power and tilt settings.
Here are the answers to the review questions from the document:
1. List at least three significant events in the evolution of CDMA networks:
- 1948 John Pierce describes CDMA Multiplexing
- 1956 "Antimultipath" RAKE receiver patented
- 1970s CDMA used in several military communication and navigation systems
2. List the four main network subsystems of UMTS Release 99:
- UTRAN
- CN
- NMS
- Service Platform
3. Name the four basic air interface access technologies:
- TDMA
- FDMA
- CDMA
- OFDMA
Physical layer aspects (Matthew Baker: RAN WG1 Chair, Alcatel-Lucent) BP Tiwari
This document discusses the physical layer design of LTE-Advanced. It describes the downlink and uplink physical layer designs, including the use of OFDMA in the downlink and SC-FDMA in the uplink. It also discusses support for time division duplexing and half-duplex frequency division duplexing. Enhancements to user equipment categories and the physical layer for LTE-Advanced are also covered.
Huawei Sues Samsung Alleging 4G LTE Patents Infringement
Contrast of Huawei and Samsung patents for 4G LTE standard regarding UE (cellular phones, smart phones, PDAs, mobile PCs, etc.) and base station (eNBs, Femtocells, Relays) products that are issued in the USPTO as of 4Q, 2015:
This document provides an overview of LTE including:
1) What LTE is and why it was needed to replace 3G networks
2) The Evolved Packet System (EPS) architecture consisting of the Evolved UTRAN and Evolved Packet Core
3) Key components of the Evolved Packet Core including the MME, SGW, and PDN-GW and their functions
This document discusses self-optimizing networks (SON) and the benefits of SON in LTE networks. It provides an overview of the 3GPP standardization timeline for SON, describing enhancements to SON features over LTE Releases 8 through 11. Key SON features covered include automatic neighbor relations, physical cell identifier planning, load balancing, mobility robustness optimization, interference coordination, energy savings, and coverage/capacity optimization. The document also examines multi-vendor SON architecture alternatives and the role of SON in deploying multi-vendor heterogeneous networks.
The document discusses the need for new wireless technologies to support increasing demand for data and high-speed services. It notes that technologies need to focus on using more spectrum, improving spectral efficiency, employing smaller cell sizes like femtocells, and incentivizing off-peak traffic. The rest of the document provides details on how LTE wireless technology addresses these needs through technical specifications and network architecture, including the use of an Evolved Packet Core and separating the user and control planes.
The document provides an overview of the agenda and content for a training on Samsung eNodeB integration and commissioning. Day 2 focuses on Samsung eNodeB and LSMR (LTE Site Manager - Radio) basics, as well as the process for growing and integrating eNodeBs. Key topics covered include the hardware and software architecture of Samsung eNodeBs and LSMRs, as well as their functions and interfaces. The training will also cover configuring and activating eNodeBs using the LSMR system, as well as performing automatic neighbor relations and cell optimization functions.
OAM 3G Network Ericsson discusses operation and maintenance of Ericsson's 3G radio access network. Session 1 covers the OSS, EMAS and other tools used for network operation. Session 2 discusses commissioning radio base stations, replacing modules, backing up network nodes, and upgrading base station capacity. Key tools include OSS, EMAS, element manager and scripts for configuration tasks. Proper planning, tools and procedures are needed for tasks like commissioning, module replacement, backups and hardware upgrades.
3GPP SON Series: SON in 3GPP Release-10 – Self-healing3G4G
This SON tutorial is part of the 3GPP Self-Organizing Networks series (#3GPPSONSeries). In this part we will look at Self-Healing features that were defined as part of 3GPP Release-10
All our #3G4G5G slides and videos are available at:
Videos: https://www.youtube.com/3G4G5G
Slides: https://www.slideshare.net/3G4GLtd
SON Page: https://www.3g4g.co.uk/SON/
5G Page: https://www.3g4g.co.uk/5G/
Free Training Videos: https://www.3g4g.co.uk/Training/
This document discusses Self-Organizing Networks (SON) and its features in LTE networks. It describes the key drivers for SON in LTE including reducing manual intervention, improving performance and user experience. The main SON features covered are self-configuration, self-optimization, and self-healing. Specific use cases explained include PCI planning, ANR, MRO and energy savings. The LTE SON framework and architecture specified by 3GPP is also summarized.
The document describes the initialization and setup procedures between a Node B, RNC, and core network nodes in a UMTS network. It includes procedures for Node B initialization like the audit procedure, cell setup procedure, and common transport channel setup procedure. It also covers call flow scenarios for RRC connection establishment, location updates, circuit switched call setup, and handovers between nodes. The end-to-end protocol stacks for the circuit switched and packet switched domains are illustrated as well.
In this presentation, we will cover basic requirements and supported topologies for Multizone AP, how to bring up APs in multi version and how the AP's image upgrade differs in 8.x
Check out the webinar recording where this presentation was used: http://community.arubanetworks.com/t5/Wireless-Access/Technical-Webinar-Recording-Slides-Multi-zone-AP-and-Centralized/td-p/308499
The document provides information about conducting a Single Cell Functional Test (SCFT) procedure. It outlines the objectives of the SCFT, which are to understand how to perform the test and understand the workflow management system. It describes who should attend the training, including field engineers, drive test engineers, and area managers. The agenda covers topics like the SCFT process, preparations required, the drive test, using the testing tools, and important notes.
Oracle Architecture document discusses:
1. The cost of an Oracle Enterprise Edition license is $47,500 per processor.
2. It provides an overview of key Oracle components like the instance, database, listener and cost based optimizer.
3. It demonstrates how to start an Oracle instance, check active processes, mount and open a database, and query it locally and remotely after starting the listener.
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Implement flow performance enhancement mechanisms without introducing software into data forwarding path
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Policy-based Dynamic packet classifier
Create OPEN platform for introduction of new services
Specify OPEN interfaces for Java applications to control a generic, platform-neutral forwarding plane
Enable downloading of services to network node
Allow object sharing and inter-service communication
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SON Server Web KPI Portal 4G DT Analysis Cases Module.pptxssuser2b76bb
SON (Self Organized Network) software automates various network optimization functions including automatic neighbor relations, coverage optimization, interference management, and sleeping cell detection and resolution. Key SON modules identify issues like crossed antennas, scrambling code collisions, and outage compensation. Intelligent reports in BSNL's KPI web portal provide insights into network performance and issues found through drive testing like orientation mismatches, cable swaps, and poor signal interference between sites.
cFrame is an open source automated platform for mobile network performance testing in both real and simulated RF environments. It provides distributed test bed automation allowing for reuse of existing hardware and software resources. The document outlines cFrame's features, test configurations, integration with tools like iPerf, and provides examples of automated test scripts and sample test plans.
Synchronization is important in telecommunication networks to avoid data errors. All node clocks must be synchronized to the master clock to minimize errors. The TimeSource 3600 GPS receiver provides precise timing synchronization at the picosecond level for telecom networks. It can be monitored using TimeScan Craft and TimeScan NMS software to ensure the network maintains precise synchronization.
It discusses about the 3G call flow scenarios for both the Circuit Switched (CS) and Packet Switched (PS). Calls are mobile originated. Call making and call tear down both are discussed.
This document provides information on STAC5Stepper drives from Applied Motion Products. The STAC5 is a high performance, compact and cost-effective stepper drive with advanced control options. It is available in 120V and 220V models with output currents from 0.5-5A. The drive has options for pulse and direction, encoder feedback, and EtherNet/IP connectivity. It provides features like anti-resonance control, torque ripple smoothing, and microstep emulation to improve motor performance. Specifications and operating parameters are provided for NEMA 23 and 34 stepper motors that can be used with the STAC5 drives.
This document provides background on the historical development of networking protocol stacks. It discusses how the original Multics architecture from the 1970s, which placed networking protocols in the kernel to minimize memory usage, became the standard model and was implemented in Unix. However, this kernel-based approach has several disadvantages for modern multicore systems, including reduced parallelism, lock contention, and extra data copies. The talk will argue for moving more protocol processing out of the kernel and into userspace to better leverage multiple cores.
The document discusses the configuration of network devices for a network topology. It includes:
1) A list of equipment used including Cisco switches and routers.
2) Diagrams of the Layer 2 and Layer 3 topologies, showing VLANs, routing protocols, and IP addressing.
3) Requirements and configuration sections detailing configurations for routing protocols like BGP, OSPF, EIGRP, services like NTP, and security features like NAT and CBAC.
The configurations provided implement an IBGP setup between routers, NTP synchronization, NAT for internal to external addressing, and CBAC to control external access to internal resources. Packet flows and debugging outputs validate the working of these configurations.
This document provides instructions for various monitoring and configuration tasks in an EMS system for 2G, 3G, and 4G networks. It describes how to check alarms, monitor cell and board status, view and query KPIs, export and import configuration data using ICM, modify parameters, and more. The steps provided allow technicians to troubleshoot issues and configure elements like alarms, cells, boards, and neighbor relations across RNCs, BSCs and other network equipment.
This document provides an overview of techniques for troubleshooting LTE throughput problems. It discusses isolating throughput issues to the radio, transport, or end-to-end domains. The agenda includes initial checks of network changes, UE capabilities, and RBS parameters. Radio analysis examines the baseband scheduler traces and signal traces between blocks to identify issues. Transport analysis evaluates network infrastructure. End-to-end analysis looks at the entire path from UE to application server. The goal is to pinpoint the root cause of throughput degradation within each domain using theory, traces, and examples.
This document provides an overview of techniques for troubleshooting LTE throughput problems. It discusses isolating issues to the radio, transport or end-to-end domains. The agenda includes initial checks of network changes, UE capabilities, profiles and RBS parameters. Radio analysis examines scheduler traces and signal traces between blocks to identify issues. Transport analysis evaluates network interfaces and configurations. End-to-end analysis considers the entire path from UE to application server. The goal is to pinpoint the root cause of throughput degradation within each domain using theory, traces and examples.
Lzu 108-9106-lte-l13-enodeb-commissioning-course-descriptionsivakumar D
This 1-day course provides hands-on training on commissioning and integrating the LTE eNodeB implemented on the RBS 6000 platform. The course objectives are to describe the LTE system and RBS 6000, explain management tools used in the integration process, and perform tasks like powering on the RBS, connecting devices, selecting integration scenarios, and testing user plane traffic. The target audience is network deployment engineers and technicians, with prerequisites of completing LTE/SAE system overview and RBS 6000 overview courses. Training involves theoretical and practical lessons in a classroom and technical environment using equipment.
This document provides an overview of the hypervisor domain in network functions virtualization (NFV) infrastructure. It defines the external interface between the hypervisor and virtualized infrastructure manager (VIM). The document also outlines key requirements for the hypervisor domain, including portability, elasticity, resiliency, security, and energy efficiency. Service models that can be supported by the hypervisor are also described at a high level.
This document provides an overview of UMTS traffic management and mobility management. It describes the UMTS network architecture including nodes like the RNC, SGSN, GGSN and core network elements. It explains concepts like bearers, radio access bearers (RABs), and radio resource connections (RRC). Mobility management procedures are outlined including location registration, location updating, routing area updates, paging, and roaming between home and visitor networks. Databases like the HLR that store subscriber information and support mobility functions are also detailed.
The document provides an overview of the UMTS radio path and transmission. It discusses key topics such as the WCDMA air interface, radio resource management, and channelization and scrambling codes. The objectives are to explain terms related to the UMTS air interface such as carrier, spreading, and scrambling codes. It also aims to describe the structure of the UMTS air interface and key functions in radio resource management.
This document provides an overview of UMTS network architecture and components. It describes the key elements of the UMTS Release 99 core network, including the circuit switched and packet switched domains. It also discusses the radio access network (UTRAN) and its components such as the radio network controller (RNC) and Node B. Finally, it summarizes the functions of the mobile switching center (MSC) and media gateway (MGW) in the UMTS network.
The document describes various 3G call flows in UTRAN including:
1. CS mobility handling such as location area updates and IMSI detach in both CELL_DCH and CELL_FACH states.
2. CS call procedures including mobile originated and terminated calls for idle mode UEs.
3. PS mobility management such as GPRS attach, detach, and routing area updates in different RRC states.
4. Session management including PDP context establishment with high bit rate QoS but no active traffic.
Umts network protocols and complete call flowssivakumar D
This document provides an overview of the network architecture and signalling protocols in UMTS networks. It describes the main network elements of UTRAN, UE and CN. It explains the interfaces between these elements and the protocols used for communication, including RRC for UE-RNC signalling, RANAP for RNC-CN signalling, and NAS protocols for non-access signalling between UE and CN. It also summarizes the protocol stacks used over the Iu interfaces between RNC and CN for circuit-switched and packet-switched domains.
This document provides an overview of the network architecture and signalling protocols in UMTS networks. It describes the main network elements of UTRAN, UE and CN. It explains the interfaces between these elements and the protocols used for communication, including RRC for UE-RNC signalling, RANAP for RNC-CN signalling, and NAS protocols for non-access signalling between UE and CN. It also summarizes the protocol stacks used over the Iu interfaces between RNC and CN for circuit-switched and packet-switched domains.
The document compares the call flow processes in GSM and UMTS mobile networks. In GSM, call flows involve immediate assignment of channels like SDCCH or TCH, with handovers between cells/BSCs handled through measurements and channel administration. In UMTS, call flows activate algorithms for power control, code control, and admission control. Soft handovers are supported between cells/BSCs based on measurements, with inner and outer loop power control on the downlink packet data channel.
This document summarizes the signaling flow between a UE, RNC, and MSC server during the establishment and release of a circuit switched call. It involves the following key steps:
1. The UE sends an RRC Connection Request to the RNC to initiate a call, and the RNC forwards this to the MSC server.
2. The MSC server and RNC then perform authentication and security procedures with the UE.
3. Once authenticated, the call is established with radio bearer setup between the UE and RNC and exchange of call signaling messages between the UE and MSC server.
4. Upon call completion, signaling is exchanged to release the radio bearers and disconnect the call.
The document provides an overview of the history and architecture of GSM cellular networks. It discusses the evolution from analog 1G networks to digital 2G and 2.5G networks. The key components of GSM architecture include the BTS, BSC, MSC, HLR, VLR, and AuC. GSM uses TDMA and FDMA to allow multiple users to share the frequency spectrum. It also relies on the SS7 protocol for signaling communication between network components to enable features like roaming.
The document describes the protocol architecture of GSM, which is a digital cellular communications system that provides digital transmission, ISDN compatibility, and worldwide roaming. It discusses the nomenclature, protocol stack, and interfaces in GSM. The protocol stack consists of physical, data link, and networking layers. The physical layer handles radio transmission, while the data link layer provides error-free transmission using LAPD and LAPDm protocols. The networking layer implements mobility management, call control, and short message service using various signaling messages and protocols.
This document discusses key aspects of GSM networks including:
- The network architecture consisting of mobile stations, base transceiver stations, base station controllers, mobile switching centers, home location registers, and other entities.
- The functional layers of GSM including the application, service carrier, connection management, mobility management, and radio resource layers.
- The air interface using TDMA/FDMA, channel structures, and physical and logical channel types.
- Factors that influence system capacity such as Erlang measurement of traffic intensity and grade of service.
- Network planning considerations for omni-directional and directional cell modes.
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SQL-with-measures has the power, conciseness and reusability of multidimensional languages but retains SQL semantics. Measure invocations can be expanded in place to simple, clear SQL.
To define the evaluation semantics for measures, we introduce context-sensitive expressions (a way to evaluate multidimensional expressions that is consistent with existing SQL semantics), a concept called evaluation context, and several operations for setting and modifying the evaluation context.
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4. 4/35
SON function and Scope
SON = (Self Planning) + Self Establishment
+ Self Optimization + (Self Healing)
LTE SON Server
eNB
More Efficient Operation
of Telecommunication System
OPEX Reduction &
Performance Enhancement
5. 5/35
SON Technology Scope
Self-Planning
- Automatically derive
few Radio parameters
for eNBs which will be
established.
- Reduce amount of
manual pre-planning
Activities
- Reduce self-
configuration errors
Network Lifecycle
Planning Deployment Optimization Maintenance
Self-Configuring
- Plug-n-Play Hardware
- Self-Configuration Radio
Parameters
. Initial PCI,
. Initial NR,
. Initial PRACH configuration
- Automatic IP Acquisition
- Automatic Neighbor Lists
- Automatic Connectivity
establishment
- Self-test and S/W
download
Self-Optimizing
- Automatic Neighbor
Relation Optimization
- Mobility Robustness
Optimization
- Mobility Based Load
balancing
- RACH optimization
- Energy Cost
Optimization
- Coverage & Capacity
Optimization
Self-Healing
- Auto Cell Outage
Detection
- Auto Cell Outage
Compensation
6. 6/35
3GPP SON Specification
Function Contents Spec. Related specification
Self- Establishment
(Self-Configuration)
Automation for eNB installation and initial radio parameter
configuration
(Initial PCI, Initial Neighbor configuration, Initial PRACH info.)
Rel-8
32.501, 32.502, 32.531, 32.532,
32.533, 32.537, 36.300
Self-
Optimiza
tion
Automatic PCI
Configuration
PCI is automatically allocated and re-allocation for PCI
confliction.
Rel-8 36.902, 36.300, 36.423
Automatic Neighbor
Relation
Detect Neighbor Cell automatically and Neighbor Cell List
configuration(optimization)
Rel-8
32.511, 32.761, 32,762, 32.763,
32.765
36.300, 36.331, 36.413, 36.423
Mobility Robustness
Optimization
Detect the problem of Handover automatically and HO
parameter configuration
Rel-9
32.816, 32.521, 32.522, 32.523,
36.902, 36.300, 36.314, 36.423
Mobility Load Balancing
Opt.
cell reselection /HO parameter optimization for cell traffic
load balancing
Rel-9
32.816, 32.521, 32.522, 32.523
36.902, 36.300, 36.314, 36.423
RACH Optimization
RACH parameter optimization and minimize interference for
Access delay and RACH
Rel-9
32.521, 32.522, 32.523,
36.902, 36.300, 36.423
Inter Cell Interference
Coordination
Improvement for edge performance with minimized
neighbor-cell interference
Rel-8
36.213, 36.214, 36.423
32.521, 32.522, 32.523
Coverage & Capacity
Opt.
Analyzing the problem of Coverage and Capacity, Cell
Coverage and Capacity optimization
Rel-10
expected
32.816, 32.521, 32.522, 32.523,
36.902, 36.300, 36.423
Self-
Healing
Alarm monitoring
Real-time monitoring of alarms.
Collection & Analysis for correlated information
Triggering of self-healing
Rel-10
32.541, 32.542, 32.543, 32.823
COD: cell outage detection
COR: cell outage recovery
COC: cell outage compensation
Self-recovery of NE S/W Recover NW S/W to initial states and recent backup states.
Self-healing of board
fault
Detect Board fault and decrease and delete automatically
the user impact.
Self-healing of cell
outage
When it happen Cell outage, it stats automatic
compensation for network problem (COD, COR, COC)
Minimization of Drive-Tests
Define the kind of UE measurement, collection method,
transmission structure for replacing drive-test.
Rel-10
TR 36,805
TS 37.320
Energy Saving Management
Down energy cost for providing cell capacity as traffic
requests,
Rel-10
TR 32.826 (new),
TR 36.902
TS 32.551
7. 7/35
SON Structure (1) : Feature Overview
MSS*
LSM
(EMS)
eNB
UE
Provision Deployment Operation & Maintenance
• eNB Provisioning
- eNB type, ID, pkg, etc.
• eNB Establishment
1. Power On Self Test
2. IP Acquisition (DHCP)
- eNB ID, eNB IP, LSM IP
3. eNB Registration
4. SW Download & Check
5. Configuration Download
- Initial Radio Parameters
6. S1/X2 Setup (SCTP)
7. RRH Configuration
8. In-service
• Self-Configuration
- Initial PCI, PRACH, NRT for eNB/Cell
•eNB Registration
• KPI/Trace Monitoring
• PCI/PRACH Collision Resolution
• Self-Optimization
• Measurements & Reports
- Serving/Neighbor Signal Quality
- Handover / RACH events
Event-based
- ANR (Add)
- PCI (Contention)
- RACH (Collision)
HO Statistics-based
- ANR (Ranking)
- MRO
- RACH (# of preambles)
RACH Statistics-based
- RACH (time, power)
Traffic Statistics-based
- Load Balancing
* MSS shall be provided by operator requirement.
• Interface with OSS (Operation Support System)
• SON Data Interworking for Inter-LSM
- PCI, PRACH, NRT for eNB/Cell groups
•Self-Configuration (When it use MSS)
- Initial PCI, PRACH, NRT for eNB/Cell
MSS: Master SON Server
8. 8/35
SON Structure(2)
MSS
LSM
(EMS)
eNB
SONF OAM CallP
Neighbor eNB
CallP
X2 SETUP REQ/RSP
ENB CONF UPDATE
SONF
SONF
SON interface
- Inter Vendor,
- Inter LSM,
- Inter RAT
Operator Specific SON interface
SON Interface
- Self-Configuration
- Self-Optimization
Configuration
Update
Operator operation server, Integrated DB,
Optimized Server
9. 9/35
Master SON Server Fucntion
Self Configuration
Initial PCI
Initial NR
Initial PRACH information
Support SC and SO function: LSM-LSM or integrity DB Coordination.
Initial PCI/RACH/NR information configuration precedure
When it deletes Cell/eNB
PCI Reconfiguration procedure
RSI Reconfiguration procedure
P5: After New PCI detection, ECGI obtaining (LSM based)
P6: After New ECGI obtaining, NR info. Configuration procedure(UE based)
10. 10/35
SON Operation per function
SON Operation Mode: Off / Manual Apply / Automatic Apply
Function SON Operation
Off Execute the collection of requested input data, there is no parameter-change.
Manual Apply After Operator의 confirm procedure, Parameter-change, Controlled Operation (open loop)in
specification
Automatic
Apply
Automatic parameter change, autonomous operation (closed loop) in specification
11. 11/35
SON Operation per function
SON’s Operation Mode per function
SON
function
Off/Manual Apply/Automatic Apply operation
PCI
• Automatic apply : Initial PCI configuration(auto), X2 monitoring, Detect PCI collision/confusion, PCI re-configuration
• Manual apply : Initial PCI Configuration(auto), X2 monitoring, Detect PCI collision/confusion, Request to operators for PCI re-
configuration
• Off : X2 monitoring
ANR
• Automatic apply: If New PCI appear, add NR automatically, X2 monitoring, delete NR automatically with detecting neighbor
cell and NR-ranking
• Manual apply: When it deletes Neighbors based Ranking/X2, Operator의 Request Confirm (Response) of operator
• Off: X2 monitoring, NR-ranking starts with collecting Handover statistic data, no NR change
RACH
• Automatic apply: Change Parameter automatically
• Manual apply: Operator-confirm procedure is first and change parameter
• Off: X2 monitoring, needed input data collection, No parameter change
12. 12/35
SE Procedure
SE Provisioning
SE Operation
HW Test (Power on Self Test)
Get eNB ID, eNB IP and LSM (EMS) IP automatically
S/W, Loading configuration info. and Validation check
S1/X2 auto-configuration
RRH Configuration
Report Self-Test result
13. 13/35
SE Provisioning environment/Configuration
Input system basic information
eNB Type
eNB ID
eNB serial number (In case of using DHCP key)
MME IP address
SC Mode configuration and initial parameter auto-creation
Initial Physical Cell Id
Initial neighbor information
Root Sequence Index
14. 14/35
SC item configuration (On/Off)
SC Result (On) [Off :need manual input]
Example (other Korea operator)
Select automation
PCI auto allocation
Initial neighbor auto-configuration
RACH optimization
Information
Add system
Detail information
Detail information
Cell Management
Information
Auto-allocation/initial neighbor/RACH opti.
State
15. 15/35
eNB ID, eNB IP, LSM IP Manual input
The procedure of manual input
Configuration for eNB environment information
– Mandatory configuration
– BOOTSTATICIP : eNB의 IP address (Information related DHCP)
– BOOTSTATICMASK : BOOTSTATICIP net-mask (Information related DHCP)
– BOOTSTATICGW : BOOTSTATICIP의 GW address (Information related DHCP)
– RS_IP : LSM의 IP
– NE_ID : eNB의 ID
– serverip : LSM의 IP address
– ipaddr : eNB의 IP adress, same configuration with BOOTSTATICIP
– example
eNB Reboot starts
> Retrieve command : getenv [-a] <env_name>
> Configuration command : setenv –p <env_name> <env_value>
root@UAMA:/root> setenv -p NE_ID 9
config string
setenv complete
root@UAMA:/root> getenv NE_ID
NE_ID=9
> reboot
16. 16/35
Retrieve configuration for S1/X2
S1 auto-configuration and retrieve the status
The function for retrieving S1 status
X2 auto-configuration and retrieve command
The function fort retrieving X2 status
Retrieve command
: RTRV-S1-STS;
Retrieve command
: RTRV-X2-STS;
17. 17/35
Self Optimization
Automatic Neighbor Relation ( ANR)
Energy Cost Optimization (ECO)
Inter Cell Interference Coordination (ICIC)
Physical Cell ID Auto Configuration (PCI)
Mobility Robustness Optimization (MRO)
RACH Optimization (RO)
19. 19/35
ANR Definition
Auto management for NRT (Neighbor Relation Table) on
Handover and Interference Management
Self Establishment step: Under Installation, Initial NRT auto-configuration using
operating eNB information
Self Optimization step: Under operation, Neighbor Add/Ranking/Remove /HO
Black list/Recover function of NRT
20. 20/35
ANR Operation
NRT Add: Add NRT and HO attempt
UE UE
eNB
(Serving Cell)
New eNB
(Target Cell)
UE
⑩ Handover
(X2 or S1)
① UE measurement
⑨ X2 set-up
⑥ NRT Udate
(Add a new cell)
LSM
iInitial NRT
⑤ report CGI
⑧ IP address acquisition
of the new eNB
MME
③ Report CGI Request
⑦ NR report
④ Read CGI② Measurement report (New PCI)
③ Report CGI Request
⑤ Report CGI
21. 21/35
ANR Operation
NRT Add: Field Test result in Korea
3 times x (Pingpong included) 10 HOs/count = 30 HOs are success
수원플라자
a
b
g
동수원
a
b
매교
a
ANR 동작 지역들
22. 22/35
ANR Operation
Neighbor Ranking
Initial NRT: Ranking based on the length between BSs
Operating NRT: Ranking based on Handover Attempts, Handover Success
Handover Black List
Definition: ‘No HO’ field is On and no handover with Neighbors
No Relation ‘No HO’ unchecked ‘No HO’ checked
NR Add Operation
1. NR add by operator
2. NR add by initial-NRT
3. NR add by UE-MR
NR Remove Operation
1. NR remove by operator
2. NR remove by X2
‘No HO’ attribute ON
1. Manual input by operator
2. NRT Full & NR-ranking
3. HO KPI
4. HO-to-wrong cell
‘No HO’ attribute OFF
1. Manual Input by operator
2. HO-to-black cell
NR Remove Operation
1. NR remove by operator
2. NR remove by X2
23. 23/35
NRT Construction
NRT contains1)
Target Cell Identifier (TCI)
E-UTAN Cell Global Identifier (ECGI)
Physical Cell Identifier (PCI)
No Remove: If checked, the eNB
shall not remove the Neighbour
cell Relation from the NRT.
No HO: If checked, the Neighbour
cell Relation shall not be used by
the eNB for handover reasons.
No X2: If checked, the Neighbour
Relation shall not use an X2
interface in order to initiate
procedures towards the eNB
parenting the target cell.
1) 3GPP TS 36.300 Section 22.3.2a
Neighbour
Detection
Function
Internal
Iinformation
RRC
Mrmnt
reports
Mrmnt
requests
Add/UpdateNeighborRelations
NRreport
ANR function
eNB
O&M
NRadd
NRT
Managemnt
Function
Neighbour
Removal
Function
NRremove
NRupdate
Neighbor Relation Table
1
2
TCI
3
No
Remove
TCI#1
TCI#1
No HO No X2
O&M controlled
Neighbour Relation Attributes
Neighbour Relation
NR
TCl#1
25. 25/35
ICIC Definition
Improvement user’s throughput decreasing cell interference using
radio resource
Self Establishment step: not applicable
Self Optimization step: In operating, communicate interference information
between cells, control interference to allocate limited tx power(radio resource) for
users.
26. 26/35
ICIC Operation
Interference
① X2 Load Information
(I’m suffering from high interference)
② RSRP measurement
(I’m near the neighbor)
③ Tx power optimization
(Reduce Tx power!)
28. 28/35
PCI Auto-configuration Definition
PCI (Physical Cell Identifier): Collision-free, Confusion-free, Unique
ID for identify the area for minimize interference between RSs
Collision-free: Two neighboring cells should not use the same PCI.
Confusion-free: A cell should not have two neighbors with the same PCI
Minimize interference among RS (cell-specific Reference Signal)
Self Establishment step: under installation, Initial PCI allocation is executed using
operating eNB information
Self Optimization step: in operating, Detect PCI collision/confusion and re-
allocation with exchanging message using X2 interfaces
29. 29/35
PCI Auto-configuration Operation
PCI Charactersitics1)
PCI (Ncell
ID)는 PCI group (N(1)
ID) 과 PCI within PCI group (N(2)
ID)
– 168 PCI groups * 3 PCIs/group = 504 PCIs
–
Using the area needed cell specific randomness like DL/UL physical channel
scrambling, resource element mapping, cyclic shift, hopping and reference signal
generation.
Needs optimization for re-using PCI
In Seoul 2,065 sites
– Main system 1,403 sites
– In-building 662 sites
1) 3GPP TR 36.211
(2)
ID
(1)
ID
cell
ID 3 NNN
650m
650m
31. 31/35
RO Definition
Optimized allocation for RACH resource in Cell
Self Establishment step: under installation, executes Initial root sequence index,
PRACH configuration index, PRACH configuration offset allocation using operating
eNB information
Self Optimization step: in operating,
– Optimize the number of Dedicated Preamble using Handover statistic data.
– PRACH power/opportunity optimization based on UE information statistic data.
– Re-allocation after detecting root sequence index collision with exchanging X2 interface
messages
32. 32/35
RACH Parameters
RACH Procedure1)
Contention-based Preamble vs. Dedicated Preamble: Use 64 preambles in each
cell.
Preamble Initial Received Target Power, Power Ramping Step
PRACH Configuration Index
…
1) 3GPP TR 36.902, Section 4.7.4
33. 33/35
RO Operation (1/3)
Initial PRACH parameter auto-configuration1)
1) Initial NRT based on distance
2) Calculates average distance(D) between neighbor cell on Initial NRT
3) Calculation RSI (Root Sequence Index) Reuse Black List
– RSI Reuse Black List standard distance = max{ R, n*D}
– R: standard distance configured by operators, 0~100 Km, default = 0 Km
– n: standard configured by operators, 1~10, default = 2
4) Allocates2) RSI except RCI Reuse Black List
– If there is no available RSI, allocate max value of Reuse Distance
5) Allocates PRACH Configuration Index per sector
– PRACH Configuration Index: (alpha, beta, gamma) = (3, 4, 5)
– Over 4 sectors, allocates additional Root Sequence Index
1) It’s depend on operators
2) High Speed Flag = False (default), Zero Correlated Zone Configuration = 12 (default)
34. 34/35
RO Operation (2/3)
Collection PRACH Data
Data collection based on X2 Handover Request/Response messages
– Dedicated Preamble Assignment Success/Fail
Data collection based on UE Information Request/Response messages
– Number of Preambles Sent
– Contention Detected
35. 35/35
RO Operation (3/3)
PRACH Data Analysis
Statistic analysis
– Threshold value is configured by operators
RACH Parameter Change
RACH Resource optimization considering RACH load, Handover, Random Access
Delay performance in operating.
– Dedicated Preamble allocation success-ratio
Number of RA Preambles Optimization
– UE Information (Preamble Re-transmission counts + Confliction counts)
PRACH Configuration Index, Power Ramping Step, Preamble Initial Received Target Power
Optimization
1
0.1
0 1 2 3 4 … … i i+1 100 [%]
Dedicated_fail_ratio
tbd
CDF/PDF
Th_de_upper = tbd
Th_de_increase = tbd %
YDed(k)
...