This document provides guidelines for monitoring and optimizing high-load UMTS networks. It discusses key performance indicators for monitoring network load at the cell, NodeB, and RNC levels. The document also describes the process for optimizing a high-load network by adjusting RF and wireless parameters. Finally, it outlines the process and criteria for expanding network capacity at the cell, NodeB, and RNC levels when load thresholds are exceeded.
This document provides an overview of SDCCH congestion rate in GSM networks, including its definition, measurement points, contributing factors, and optimization methods. It defines SDCCH congestion rate as the ratio of failed SDCCH seizures due to busy SDCCH channels to total SDCCH requests. The document then outlines several potential causes of high SDCCH congestion rate, such as hardware faults, insufficient signaling resources, improper data configuration, and interference. Finally, it proposes a procedure for analyzing SDCCH congestion that involves checking hardware, channel configuration, data configuration, and the Um interface quality.
The document provides an overview of 3G and WCDMA technology. It discusses the evolution of mobile communications standards from 1G to 3G. It compares the different 3G modes including WCDMA, CDMA2000, and TD-SCDMA. It also outlines ZTE's WCDMA features and their solutions for 3G networks.
The document describes ZTE's intra-frequency handover strategy in UMTS networks. It discusses the use of events 1A, 1B, 1C, and 1D to trigger intra-frequency handovers within the active set, monitored set, and detected set. It also covers parameters like reporting range, hysteresis, weight, and priority that control handover thresholds and cell replacement.
Huawei - Access failures troubleshooting work shopnavaidkhan
This document provides information on troubleshooting access failures in mobile networks, including:
1. It describes the general call setup procedure and potential points of failure, such as RRC, paging, and RACH access failures.
2. Common causes of access failures are discussed, like RF issues, radio parameter problems, and other miscellaneous causes.
3. Guidance is given on how to identify and resolve different types of failures, including steps to troubleshoot RRC access failures through analyzing configuration, alarms, traffic patterns, and radio parameters.
The document discusses call drop issues in mobile networks. It begins by defining call drop as the abnormal release of traffic or signaling channels after successful seizure. It then provides formulas to calculate call drop rates and describes measurement points to analyze call drops. Finally, it analyzes common causes of high call drop rates such as radio link faults, handover failures, and timer expirations.
This document provides an optimization manual for improving the TCH assignment success rate (KPI) in GSM BSS networks. It defines TCH assignment success rate and lists key factors that influence it, such as hardware faults, interference issues, coverage problems, and parameter settings. The document then describes procedures for analyzing assignment failures, including checking hardware status, transmission quality, and parameter settings. Finally, it provides optimization methods and case studies.
The document discusses UMTS planning and dimensioning processes. It describes:
1) The overall planning process which includes system dimensioning, radio network planning, pre-launch optimization, performance monitoring, and post-launch optimization.
2) The inputs, assumptions, and steps used for air interface dimensioning which includes uplink and downlink link budget analysis to determine coverage requirements and capacity needs.
3) Traffic modelling and load calculation methods to estimate subscriber traffic per cell based on factors like subscriber density, traffic profiles, and cell area.
This document provides an overview of SDCCH congestion rate in GSM networks, including its definition, measurement points, contributing factors, and optimization methods. It defines SDCCH congestion rate as the ratio of failed SDCCH seizures due to busy SDCCH channels to total SDCCH requests. The document then outlines several potential causes of high SDCCH congestion rate, such as hardware faults, insufficient signaling resources, improper data configuration, and interference. Finally, it proposes a procedure for analyzing SDCCH congestion that involves checking hardware, channel configuration, data configuration, and the Um interface quality.
The document provides an overview of 3G and WCDMA technology. It discusses the evolution of mobile communications standards from 1G to 3G. It compares the different 3G modes including WCDMA, CDMA2000, and TD-SCDMA. It also outlines ZTE's WCDMA features and their solutions for 3G networks.
The document describes ZTE's intra-frequency handover strategy in UMTS networks. It discusses the use of events 1A, 1B, 1C, and 1D to trigger intra-frequency handovers within the active set, monitored set, and detected set. It also covers parameters like reporting range, hysteresis, weight, and priority that control handover thresholds and cell replacement.
Huawei - Access failures troubleshooting work shopnavaidkhan
This document provides information on troubleshooting access failures in mobile networks, including:
1. It describes the general call setup procedure and potential points of failure, such as RRC, paging, and RACH access failures.
2. Common causes of access failures are discussed, like RF issues, radio parameter problems, and other miscellaneous causes.
3. Guidance is given on how to identify and resolve different types of failures, including steps to troubleshoot RRC access failures through analyzing configuration, alarms, traffic patterns, and radio parameters.
The document discusses call drop issues in mobile networks. It begins by defining call drop as the abnormal release of traffic or signaling channels after successful seizure. It then provides formulas to calculate call drop rates and describes measurement points to analyze call drops. Finally, it analyzes common causes of high call drop rates such as radio link faults, handover failures, and timer expirations.
This document provides an optimization manual for improving the TCH assignment success rate (KPI) in GSM BSS networks. It defines TCH assignment success rate and lists key factors that influence it, such as hardware faults, interference issues, coverage problems, and parameter settings. The document then describes procedures for analyzing assignment failures, including checking hardware status, transmission quality, and parameter settings. Finally, it provides optimization methods and case studies.
The document discusses UMTS planning and dimensioning processes. It describes:
1) The overall planning process which includes system dimensioning, radio network planning, pre-launch optimization, performance monitoring, and post-launch optimization.
2) The inputs, assumptions, and steps used for air interface dimensioning which includes uplink and downlink link budget analysis to determine coverage requirements and capacity needs.
3) Traffic modelling and load calculation methods to estimate subscriber traffic per cell based on factors like subscriber density, traffic profiles, and cell area.
Call Setup Success Rate Definition and Troubleshooting Assim Mubder
The CSSR indicates the probability of successful calls initiated by the MS. The CSSR is an important KPI for evaluating the network performance. If this KPI is too low, the subscribers are not likely to make calls successfully. The user experience is thus affected.
This document introduces ways to analyze and solve call drop problems in UMTS networks. It defines call drops and outlines several common reasons for call drops, including poor coverage, issues with neighbor cells, interference, cells using the same primary scrambling code, and engineering or system problems. Methods for analyzing call drops using drive testing and key performance indicators are also presented, along with relevant radio parameters and considerations for optimization.
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.
The document discusses various resources in an LTE network that need to be monitored to ensure capacity and quality of service. It describes several key performance indicators (KPIs) related to resources like connected users, traffic volume, paging messages, processor usage, and provides thresholds and solutions to address issues.
The document discusses the technology behind HSDPA (High Speed Downlink Packet Access), which enhances the downlink speed of WCDMA networks. It describes the drivers for adopting HSDPA, including increasing competition from other technologies, and explains the key technologies that enable HSDPA's higher speeds, such as adaptive modulation and coding, hybrid ARQ, and fast scheduling. Finally, it discusses the commercial deployment of HSDPA terminals and networks beginning in 2005.
The document discusses radio frequency (RF) network planning and optimization. It describes the responsibilities of RF planners, which include designing site plans and frequency plans. It also describes the responsibilities of RF optimization personnel, which include maintaining network performance metrics and studying new features. The document outlines training courses on RF network planning and optimization, covering topics like coverage, capacity, frequency planning, optimization features and parameters, and key performance indicator monitoring.
This document provides guidelines for optimizing accessibility in Ericsson networks. It discusses key performance indicators (KPIs) for measuring accessibility, including call setup success rate and overall service accessibility. It also analyzes factors that can affect accessibility, such as admission control, processor load, and issues after call admission like congestion. Annexes describe user equipment idle mode procedures and call establishment procedures in detail.
This document is a master report on WCDMA RF optimization that provides information and solutions for analyzing and resolving problems in the RF part of a WCDMA network. It discusses basic processes for RF optimization including optimizing signal coverage and controlling pilot pollution. It also covers network problem analysis, the work process used, and data collection tools and techniques. The report aims to present a manual for UMTS data collection and optimization based on experiences from the UAE Etisalat network.
This document provides an overview and optimization guidance for reducing the SDCCH call drop rate in GSM networks. It defines SDCCH call drop rate, lists factors that can affect it such as hardware failures, interference and parameter settings, and provides an analysis process and solutions to address a high SDCCH call drop rate. The solutions involve checking for issues with hardware, transmissions, software versions, parameter settings, interference, coverage, antenna systems and uplink/downlink imbalance. The document also includes examples of optimizing SDCCH call drop rate in specific cases.
This document provides an overview of analyzing SDCCH drop rate as a key performance indicator. It discusses the causes of SDCCH drops, investigation procedures, and troubleshooting techniques. Tools described include Business Objects, ZXG10 OMCR, TEMS Investigation, and MCOM 4.2. The technical procedure outlines analyzing SDCCH availability, causes, alarms, measurements, parameters, and drive testing. Examples demonstrate addressing hardware problems, interference, transmission issues, and parameter changes.
This document provides guidelines for optimizing 3G networks through neighbor optimization and coverage adjustments. The objectives are to have an optimum number of neighbors to clean up pilot pollution, reduce overshooting, increase capacity, and reduce the possibility of soft congestion conflicts. The methodology involves deleting and adding neighbors based on data from the OSS, as well as adjusting antenna tilting. The optimization sequence is outlined, including guidelines for neighbor deletion, addition of different neighbor types, and planning of the SIB11. The end goal is to have fewer than 36 total neighbors and avoid blocking alarms due to too many neighbors.
The document provides an overview and details of congestion control features for WCDMA RAN, including:
1. It describes the main congestion control strategies for R99, HSDPA, and HSUPA which involve resource preemption policies like forced release, downgrade, and queuing.
2. The resource preemption process is outlined, beginning with forced release for services capable of preemption, then queuing or downgrade for other services depending on their capabilities.
3. Key aspects of the R99 congestion control algorithm are explained, including definitions for different priority levels, and the detailed policies and processes for forced release, downgrade, and queuing management.
Owp112020 wcdma radio network capacity dimensioning issue1.22Gratien Niyitegeka
This document discusses WCDMA radio network capacity planning. It covers traffic modeling, interference analysis, and dimensioning methods. The key points are:
- WCDMA network capacity is restricted by factors like uplink interference, downlink power, and channel resources.
- Traffic is modeled using parameters like call attempts, call duration, and data rates. Models distinguish between circuit-switched and packet-switched services.
- Interference analysis is important because WCDMA uses the same frequency across cells, causing interference. Uplink interference depends on received power levels and adjacent cell interference.
- Dimensioning methods aim to estimate multi-service capacity while meeting requirements for noise rise and Eb/
The document discusses key performance indicators (KPIs) for 3G radio networks. It provides an overview of important KPIs such as call setup success rate, call drop rate, and data throughput. It describes methods for measuring KPIs including drive testing, stationary testing, and statistical analysis. The document also discusses how to optimize radio networks by adjusting parameters and resolving issues to improve KPIs like accessibility, retainability, and service integrity. Case studies demonstrate analyzing and troubleshooting KPI issues.
This document provides guidelines for LTE radio frequency (RF) network optimization. It describes the network optimization process including single site verification and RF optimization. Key aspects of RF optimization covered include preparing by collecting data and analyzing problems, adjusting parameters such as transmit power and neighbor lists, and ensuring optimization objectives like coverage, signal quality, and handover success rates are met. The document also details common issues like weak coverage, lack of a dominant cell, and cross coverage and methods for resolving them.
This document describes the ZXSDR BS8700 software defined radio base station, which consists of a BBU and series of RRUs. Key features include:
- Integrating GSM and UMTS radio networks into a single network to reduce costs by using a single base station that can be flexibly configured for GSM or UMTS via software.
- Adopting a distributed architecture with a baseband unit and remote radio units connected via optical fiber for increased flexibility and capacity.
- Supporting both single-mode GSM, UMTS, or dual-mode GSM/UMTS configurations through software settings to provide converged 2G and 3G network functionality.
The document discusses interworking between WCDMA and LTE networks. It describes cell reselection procedures where a UE camping on a UMTS cell can reselect to an LTE cell based on priorities broadcast in system information. The UE performs measurements of LTE frequencies and reselects to a cell with higher priority if thresholds are met. Parameters for controlling cell reselection are configured using managed object models. The document also discusses PS redirections and handovers between the networks.
The document summarizes different 3G events that can trigger handover procedures in UMTS networks. It describes 7 categories of events related to primary pilot channel, frequency, quality, channel traffic volume, CRCs, Rx-Tx parameters, and location/position. Each category contains multiple specific events that are monitored and can trigger handovers based on thresholds being passed for radio frequency parameters. The events monitor factors like signal quality, interference levels, traffic loads, transmission power, and device location to determine when a UE should hand over to a better serving cell.
Nokia gsm-kpi-analysis-based-on-daily-monitoring-basis-presentationmohammed khairy
This document discusses key performance indicators (KPIs) for monitoring a GSM network and reasons for and solutions to common issues. It provides relationships between different network elements and describes concepts like SD blocking, SD drop, TCH blocking, TCH assignment, TCH drop, and handover success rate (HOSR). For each KPI, it outlines potential causes for degradation and recommendations to address hardware faults, interference, parameter misconfiguration, and other problems.
ZXSDR BTS Structure and Principle document introduces ZXSDR base station technology. It discusses the challenges of evolving communication technology and how software defined radio (SDR) addresses this. The main features of the ZXSDR platform include high integrity, flexible architecture, new functions, and lower cost. The document reviews the hardware and networking of the different types of ZXSDR base stations including the distributed BS8700, indoor macro BS8800, and outdoor macro BS8900. It also covers the work principles and operation and maintenance of the ZXSDR base station family.
This document provides a rough guide to understanding 3G/HSPA concepts for RF engineers. It begins with general information on 3G networks and UMTS. It then discusses technical concepts such as spreading codes, scrambling codes, and processing gain. It explains how spreading spreads the baseband signal over the frequency band and hides it below the noise floor, allowing recovery via despreading. The document also covers HSPA technologies and their advantages over prior 3G standards.
Call Setup Success Rate Definition and Troubleshooting Assim Mubder
The CSSR indicates the probability of successful calls initiated by the MS. The CSSR is an important KPI for evaluating the network performance. If this KPI is too low, the subscribers are not likely to make calls successfully. The user experience is thus affected.
This document introduces ways to analyze and solve call drop problems in UMTS networks. It defines call drops and outlines several common reasons for call drops, including poor coverage, issues with neighbor cells, interference, cells using the same primary scrambling code, and engineering or system problems. Methods for analyzing call drops using drive testing and key performance indicators are also presented, along with relevant radio parameters and considerations for optimization.
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.
The document discusses various resources in an LTE network that need to be monitored to ensure capacity and quality of service. It describes several key performance indicators (KPIs) related to resources like connected users, traffic volume, paging messages, processor usage, and provides thresholds and solutions to address issues.
The document discusses the technology behind HSDPA (High Speed Downlink Packet Access), which enhances the downlink speed of WCDMA networks. It describes the drivers for adopting HSDPA, including increasing competition from other technologies, and explains the key technologies that enable HSDPA's higher speeds, such as adaptive modulation and coding, hybrid ARQ, and fast scheduling. Finally, it discusses the commercial deployment of HSDPA terminals and networks beginning in 2005.
The document discusses radio frequency (RF) network planning and optimization. It describes the responsibilities of RF planners, which include designing site plans and frequency plans. It also describes the responsibilities of RF optimization personnel, which include maintaining network performance metrics and studying new features. The document outlines training courses on RF network planning and optimization, covering topics like coverage, capacity, frequency planning, optimization features and parameters, and key performance indicator monitoring.
This document provides guidelines for optimizing accessibility in Ericsson networks. It discusses key performance indicators (KPIs) for measuring accessibility, including call setup success rate and overall service accessibility. It also analyzes factors that can affect accessibility, such as admission control, processor load, and issues after call admission like congestion. Annexes describe user equipment idle mode procedures and call establishment procedures in detail.
This document is a master report on WCDMA RF optimization that provides information and solutions for analyzing and resolving problems in the RF part of a WCDMA network. It discusses basic processes for RF optimization including optimizing signal coverage and controlling pilot pollution. It also covers network problem analysis, the work process used, and data collection tools and techniques. The report aims to present a manual for UMTS data collection and optimization based on experiences from the UAE Etisalat network.
This document provides an overview and optimization guidance for reducing the SDCCH call drop rate in GSM networks. It defines SDCCH call drop rate, lists factors that can affect it such as hardware failures, interference and parameter settings, and provides an analysis process and solutions to address a high SDCCH call drop rate. The solutions involve checking for issues with hardware, transmissions, software versions, parameter settings, interference, coverage, antenna systems and uplink/downlink imbalance. The document also includes examples of optimizing SDCCH call drop rate in specific cases.
This document provides an overview of analyzing SDCCH drop rate as a key performance indicator. It discusses the causes of SDCCH drops, investigation procedures, and troubleshooting techniques. Tools described include Business Objects, ZXG10 OMCR, TEMS Investigation, and MCOM 4.2. The technical procedure outlines analyzing SDCCH availability, causes, alarms, measurements, parameters, and drive testing. Examples demonstrate addressing hardware problems, interference, transmission issues, and parameter changes.
This document provides guidelines for optimizing 3G networks through neighbor optimization and coverage adjustments. The objectives are to have an optimum number of neighbors to clean up pilot pollution, reduce overshooting, increase capacity, and reduce the possibility of soft congestion conflicts. The methodology involves deleting and adding neighbors based on data from the OSS, as well as adjusting antenna tilting. The optimization sequence is outlined, including guidelines for neighbor deletion, addition of different neighbor types, and planning of the SIB11. The end goal is to have fewer than 36 total neighbors and avoid blocking alarms due to too many neighbors.
The document provides an overview and details of congestion control features for WCDMA RAN, including:
1. It describes the main congestion control strategies for R99, HSDPA, and HSUPA which involve resource preemption policies like forced release, downgrade, and queuing.
2. The resource preemption process is outlined, beginning with forced release for services capable of preemption, then queuing or downgrade for other services depending on their capabilities.
3. Key aspects of the R99 congestion control algorithm are explained, including definitions for different priority levels, and the detailed policies and processes for forced release, downgrade, and queuing management.
Owp112020 wcdma radio network capacity dimensioning issue1.22Gratien Niyitegeka
This document discusses WCDMA radio network capacity planning. It covers traffic modeling, interference analysis, and dimensioning methods. The key points are:
- WCDMA network capacity is restricted by factors like uplink interference, downlink power, and channel resources.
- Traffic is modeled using parameters like call attempts, call duration, and data rates. Models distinguish between circuit-switched and packet-switched services.
- Interference analysis is important because WCDMA uses the same frequency across cells, causing interference. Uplink interference depends on received power levels and adjacent cell interference.
- Dimensioning methods aim to estimate multi-service capacity while meeting requirements for noise rise and Eb/
The document discusses key performance indicators (KPIs) for 3G radio networks. It provides an overview of important KPIs such as call setup success rate, call drop rate, and data throughput. It describes methods for measuring KPIs including drive testing, stationary testing, and statistical analysis. The document also discusses how to optimize radio networks by adjusting parameters and resolving issues to improve KPIs like accessibility, retainability, and service integrity. Case studies demonstrate analyzing and troubleshooting KPI issues.
This document provides guidelines for LTE radio frequency (RF) network optimization. It describes the network optimization process including single site verification and RF optimization. Key aspects of RF optimization covered include preparing by collecting data and analyzing problems, adjusting parameters such as transmit power and neighbor lists, and ensuring optimization objectives like coverage, signal quality, and handover success rates are met. The document also details common issues like weak coverage, lack of a dominant cell, and cross coverage and methods for resolving them.
This document describes the ZXSDR BS8700 software defined radio base station, which consists of a BBU and series of RRUs. Key features include:
- Integrating GSM and UMTS radio networks into a single network to reduce costs by using a single base station that can be flexibly configured for GSM or UMTS via software.
- Adopting a distributed architecture with a baseband unit and remote radio units connected via optical fiber for increased flexibility and capacity.
- Supporting both single-mode GSM, UMTS, or dual-mode GSM/UMTS configurations through software settings to provide converged 2G and 3G network functionality.
The document discusses interworking between WCDMA and LTE networks. It describes cell reselection procedures where a UE camping on a UMTS cell can reselect to an LTE cell based on priorities broadcast in system information. The UE performs measurements of LTE frequencies and reselects to a cell with higher priority if thresholds are met. Parameters for controlling cell reselection are configured using managed object models. The document also discusses PS redirections and handovers between the networks.
The document summarizes different 3G events that can trigger handover procedures in UMTS networks. It describes 7 categories of events related to primary pilot channel, frequency, quality, channel traffic volume, CRCs, Rx-Tx parameters, and location/position. Each category contains multiple specific events that are monitored and can trigger handovers based on thresholds being passed for radio frequency parameters. The events monitor factors like signal quality, interference levels, traffic loads, transmission power, and device location to determine when a UE should hand over to a better serving cell.
Nokia gsm-kpi-analysis-based-on-daily-monitoring-basis-presentationmohammed khairy
This document discusses key performance indicators (KPIs) for monitoring a GSM network and reasons for and solutions to common issues. It provides relationships between different network elements and describes concepts like SD blocking, SD drop, TCH blocking, TCH assignment, TCH drop, and handover success rate (HOSR). For each KPI, it outlines potential causes for degradation and recommendations to address hardware faults, interference, parameter misconfiguration, and other problems.
ZXSDR BTS Structure and Principle document introduces ZXSDR base station technology. It discusses the challenges of evolving communication technology and how software defined radio (SDR) addresses this. The main features of the ZXSDR platform include high integrity, flexible architecture, new functions, and lower cost. The document reviews the hardware and networking of the different types of ZXSDR base stations including the distributed BS8700, indoor macro BS8800, and outdoor macro BS8900. It also covers the work principles and operation and maintenance of the ZXSDR base station family.
This document provides a rough guide to understanding 3G/HSPA concepts for RF engineers. It begins with general information on 3G networks and UMTS. It then discusses technical concepts such as spreading codes, scrambling codes, and processing gain. It explains how spreading spreads the baseband signal over the frequency band and hides it below the noise floor, allowing recovery via despreading. The document also covers HSPA technologies and their advantages over prior 3G standards.
This document discusses various topics related to GSM drive testing including:
1. The purpose of drive testing is to verify network performance for new or existing sites by checking coverage, troubleshooting problems, and benchmarking against competitors.
2. Types of drive tests include new site tests, benchmarking tests, migration tests after upgrades, and route tests. Proper coverage verification involves driving routes and measuring idle mode parameters like Rx Level Full.
3. Before drive testing, information like site data, maps, frequency plans, and neighbor lists should be collected, along with proper equipment and tools.
This document provides a case study to calculate bandwidth requirements for interfaces in a UTRAN network based on given traffic modeling parameters:
1. It models the traffic with 3 million users distributed across 2000 sites and 6000 cells, and defines busy hour voice/data usage profiles.
2. For scenario 1 using E1 IMA ATM on Iub, it calculates bandwidth needs per NodeB for signaling at 0.91 Mbps and common channels at 0.17 Mbps, plus NBAP/ALCAP signaling.
3. It then calculates Iub CS bandwidth at 1.43 Mbps and PS bandwidth based on the given downlink throughput per user, accounting for overhead and redundancy factors.
4.
The document summarizes the results of an email discussion on modifying RRC procedures in TS 25.331. It lists various RRC procedure specifications that were discussed and agreed upon. It is proposed to replace the text in chapters 8 and 9 of TS 25.331 with the text from this document, except for two procedures still being specified. The chapter structures would also be adjusted accordingly.
The document provides an overview of NBAP (Node B Application Part) procedures. It discusses:
1. The Iub interface between RNC and Node B and how NBAP is used for signaling.
2. The main functions of NBAP including cell configuration management, transport channel management, and radio link management.
3. The different types of NBAP procedures including common procedures for tasks like cell setup/deletion and dedicated procedures for radio link management.
4. Key elements of NBAP communication like messages, information elements, and error handling.
Rf congestion control measures heavy traffic special eventspintor63
This document provides several measures to help relieve radio frequency (RF) congestion during special events like large gatherings that last a day or two. These include reducing the quantity and time between RRC setup request retransmissions; increasing timers for location area updates and guaranteed bit rate adjustments; adjusting timers that control RRC connection setup retransmissions; lowering thresholds for uplink access control; enabling downlink power control; and reducing rise-to-waste power through E-DPDCH and HS-DPCCH configuration changes, and RACH parameter optimization. The measures aim to temporarily limit network signaling load through configuration changes tailored to short-term congestion scenarios.
Zxsdr bs8900 a product description 20101026Adeep Asaad
The document provides an overview and description of the ZXSDR BS8900A product, which is an outdoor integrated macro base transceiver station developed by ZTE based on a software-defined radio platform. Key features include its small size, scalable architecture to support capacity expansion, support for multiple frequency bands, high capacity of up to 48 carrier sectors, and use of an advanced Micro Telecom Computing Architecture. The system consists of different cabinet types to house the baseband units, radio units, batteries, and other components in a modular structure.
The document provides a product description of the ZXSDR BS8700, a dual-mode distributed base station from ZTE. It can support GSM, UMTS, CDMA2000 and WiMAX through software configuration. The BS8700 consists of a baseband unit (B8200) and remote radio units (RRUs). It has several highlights including flexible RRU configurations, compact RRU design, ability to install RRUs near antennas, shared baseband resources and support for GSM and UMTS networks. The document describes the system architecture, technical specifications, operation and maintenance features, and configuration principles of the BS8700.
WCDMA optimization & Drive test analysisTABREZ KHAN
This document discusses various tools and methods used for optimizing 3G/4G network performance through drive testing. It covers collecting data from drive test equipment like UE's and scanners, analyzing metrics like coverage, interference, missing neighbors, and throughput. The purpose is to identify problems, analyze root causes like improper configurations, interference issues, and develop optimization solutions like adjusting antenna tilting, heights, powers to improve coverage, dominance and call performance.
Wcdma Radio Network Planning And OptimizationPengpeng Song
The document discusses WCDMA radio network planning and optimization, including key topics such as:
1) Fundamentals of WCDMA link budget analysis and radio interface protocol architecture.
2) Radio resource utilization techniques like power control, handover control, and congestion control.
3) Issues of coverage and capacity planning as well as enhancement methods.
4) The process of WCDMA radio network planning including dimensioning, detailed planning, and optimization aspects to address interference.
CE resources are a type of hardware resource in NodeBs that measure channel demodulation capabilities. The number of CEs supported by a NodeB determines how many users and what types of services it can support. CEs are managed jointly by the RNC and NodeB to ensure resources are used properly. The number of CEs consumed depends on the type of service and can be calculated based on mappings provided in the document.
In this paper, we discussed about LTE system throughput calculation for both TDD and FDD system.
3GPP LTE technology support both TDD and FDD multiplexing. The paper describes all the factors which affect the throughput like Bandwidth, Modulation, UE category and mulplexing. It also describes how we get throughput 300Mbps in DL and 75Mbps in UL and what are assumptions taken to calculate the same.
Paper describes the steps and formulae to calculate the throughput for FDD system for TDD Config 1 and Config 2.
The throughput calculations shown in this paper is theoretical and limited by the assumptions taken to calculate for calculations
The document discusses how to characterize and dimension user traffic in 4G networks. It describes how to define data traffic in terms of data speed and data tonnage. Data speed is the rate at which data is transferred, while data tonnage refers to the total amount of data exchanged. The document provides examples of data speed metrics used in 3GPP standards and outlines factors to consider when calculating expected data usage per subscriber based on typical mobile application usage patterns and available data plans. Dimensioning user traffic accurately is important for designing 4G networks to meet capacity demands.
Drive tests are performed to continuously monitor and optimize network performance. Key parameters measured include RxLevel, RxQuality, Frame Erasure Rate, Bit Error Rate, Carrier to Interferer ratio, and Speech Quality Index for GSM networks. For CDMA networks, parameters like RxLevel, TxPower, Carrier Energy to Interference, Carrier to Interferer ratio, and Signal to Noise Ratio are measured. Maintaining these parameters within normal ranges helps ensure quality of service and identify issues needing attention.
Purple Wave InfoCom is the exclusive distributor of ZTE video conference systems in India. ZTE is a top provider of video conferencing equipment worldwide, ranking in the top 3 for market share. Purple Wave organizes and distributes ZTE's products through a network of dealers across major Indian cities to provide sales, service, and support. ZTE has been in the government and enterprise communications industry for over 10 years and provides a range of video conference products and total solution packages.
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.
The ZXUR 9000 UMTS uses a modular hardware structure consisting of a cabinet, subracks, and boards. The cabinet is a standard 19-inch cabinet that houses power distribution, ventilation, and service subracks. The service subrack contains front boards that provide processing, switching, and interface functions. Software is structured with a distributed architecture. Logically, the ZXUR 9000 UMTS functions as a radio network controller in the UMTS network.
Wireless 4G LTE Network Lte future mobiletech_wpCMR WORLD TECH
This white paper discusses Verizon Wireless' 4G LTE network and how it is transforming business. It provides an overview of LTE technology, the evolution of wireless technologies, and why Verizon chose LTE for its 4G network. The paper also describes the security enhancements, support programs, and innovation center that Verizon has implemented with LTE. Finally, it discusses how LTE is improving business functions and processes by providing faster speeds and increased bandwidth for applications and content.
1. NetSim is a network simulation tool that allows users to model networks, design protocols, and analyze network performance. It supports simulation of various network types including Internetworks, wireless networks, cellular networks, and more.
2. The typical workflow in NetSim involves setting up the network topology, configuring device and protocol properties, modeling application traffic flows, running the simulation, and analyzing results using graphs, tables, and packet animations.
3. Key features of NetSim include the network design window for creating network scenarios, results window for viewing performance metrics, and packet animation window for visualizing packet flows during simulation. It also supports saving experiment configurations, modifying parameters, and re-running simulations.
This document provides an overview, installation guide, and operations guide for the ZTE RNC Call Trace (RCT) signaling tracing software. The RCT software allows users to trace and monitor real-time signaling data from multiple 2G/3G network elements to help locate network issues and optimize system performance. It uses a client-server architecture with the server connected to network elements and clients connected to the server to manage tracing tasks. Key functions include adding network elements, creating and monitoring tracing tasks, and viewing historical signaling data files.
SJ-20140527134054-013-ZXUR 9000 UMTS (V4.13.10.15) Radio Parameter Reference_...tunaVNP
This document provides a summary of radio network controller parameters for a ZXUR 9000 UMTS radio network controller. It includes over 50 parameters organized under the section for UMTS logical function configuration. The document was created by ZTE Corporation and provides legal information, a revision history, and table of contents.
The document describes the CPE WAN Management Protocol, which defines a mechanism for secure auto-configuration and management of customer premises equipment (CPE) by an auto-configuration server (ACS). The protocol supports auto-configuration, software/firmware management, status monitoring, diagnostics, and optional web identity management. It uses HTTP, SOAP, and SSL/TLS for secure communication between CPE and ACS. The protocol allows for both CPE-initiated and ACS-initiated connections to perform management functions in a common framework.
Technical guide for radio parameter planning in wcdma newly construct…Gaurav Singh
This document provides guidelines for configuring radio parameters in a newly constructed WCDMA network. It describes the various cell radio parameters that must be configured, including cell ID, scrambling codes, neighbor cell information, and others. Template tables are provided as examples for batch input of parameter configuration in the network management system. The guidelines aim to help engineers properly plan and set up the initial radio environment before testing and optimization.
Sj 20120319104909-007-zxur 9000 umts (v4.11.20) radio parameter referenceKafunya Malichi
This document provides a summary of radio network controller (RNC) radio parameters for a ZXUR 9000 UMTS RNC made by ZTE Corporation. It includes over 150 parameters organized in sections with descriptions of each parameter's purpose and configuration options. The document contains legal information noting that the contents are copyrighted and providing disclaimers. It also includes a revision history showing updates made to the document.
This document provides an introduction to the Long Term Evolution (LTE) training course. It discusses the drivers for LTE development including the need for higher data rates. It describes the 3GPP standards process and how LTE fits into the evolution of GSM networks. Key goals for LTE performance are outlined such as improved spectrum efficiency and reduced latency. The document also contains copyright and distribution restrictions.
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.
US NORTHCOM Study: Commercial Wireless Doug Hanchard
This document provides a summary of a study examining the utility of commercial wireless technologies to enable communications for US Northern Command operations. Key conclusions include:
- A variety of commercial wireless technologies were analyzed over a 10-year horizon, including WiFi, cellular networks, satellite communications, and emerging technologies.
- Near-term focus (3-5 years) should be on technologies with market viability supported by commercial vendors to provide capabilities for bandwidth, coverage, and cost.
- Mature cellular networks can provide wide-area coverage, while technologies like WiFi and WiMax offer rapid deployment capabilities. IP is crucial for interoperability across networks.
- Recommendations and roadmaps will identify commercially supported technologies
This document describes Feature 1331 which implements the Session Initiation Protocol (SIP) in the MSC Server to connect circuit-switched and IP Multimedia Subsystem (IMS) domains. SIP allows for multimedia sessions between participants over IP networks. The feature supports SIP-T and SIP-I interfaces between MSC Servers and uses SIP without ISUP tunneling toward the IMS. Benefits include interworking legacy networks with 3G IP networks and providing an open ISUP tunneling SIP trunk interface. Requirements and functionality like statistics, parameters and charging are also outlined.
The document is a thesis submitted by Maryam Hamidirad for the degree of Master of Applied Science. It proposes a cooperative mechanism to reduce energy consumption in the downlink channel of LTE networks for multicast video transmission. The mechanism clusters users based on distance from the base station. A cluster header is chosen using a utility function and receives data directly from the base station. Cluster headers then relay the data to other users in their cluster using WLAN. Simulations show the approach reduces base station power consumption by 5-25% compared to conventional multicast transmission.
This document discusses considerations for introducing LTE technology into existing GSM-UMTS networks. It will take several years for LTE deployments to reach the scale of existing 2G and 3G networks, so operators need solutions to provide seamless service and mobility between network technologies during the transition. The document outlines various strategies for LTE deployment, including options for data-only, voice and data services. It also examines expectations around subscriber and operator experience, and analyzes potential solutions for interworking LTE with 2G-3G networks to support seamless service continuity.
This document provides an overview of cell management in LTE networks and describes its technical aspects. It discusses sectors and cells, including sector types and the mapping between sectors, carriers, and cells. It also covers frequency bands and parameters for cell configuration. The document provides guidelines for deploying, optimizing, and troubleshooting cell management features.
1. Obtain a new license key from Cambium using the unique Access Key.
2. Connect to the PTP 600 unit and navigate to the License Key page.
3. Enter the new license key to enable the optical interface capability.
4. Connect the fiber optic cable to the SFP module and configure the SFP settings.
5. The unit can now be connected to the fiber network and configured for operation.
1. Obtain a new license key from Cambium using the unique Access Key.
2. Connect to the PTP 600 unit and navigate to the License Key page.
3. Enter the new license key to enable the optical interface capability.
4. Connect the fiber optic cable to the SFP module and configure the SFP settings.
5. The unit can now be connected to the fiber network and configured for operation.
This document contains a summary of ground parameters for ZTE's ZXUR 9000 UMTS Radio Network Controller. It includes parameters for various network elements like PLMN groups, equipment, racks, shelves, boards, ports, CPUs and trails. The document provides object IDs, numbers, types and other configuration details for these network elements and components. It is intended to serve as a reference for ground parameters in ZTE's ZXUR 9000 UMTS Radio Network Controller systems.
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Rainfall intensity duration frequency curve statistical analysis and modeling...bijceesjournal
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
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Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
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Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)