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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.

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.

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 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 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.

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

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.

1) The document describes key performance indicators (KPIs) for measuring the performance of an LTE radio network. It defines KPIs related to accessibility, retainability, mobility, and latency. 2) Accessibility KPIs measure aspects like call setup success rate, RRC setup success rate, and E-RAB setup success rate. Mobility KPIs evaluate handover success rates within LTE and between LTE and other technologies. 3) Retainability KPIs track metrics such as call drop rate and call setup completion rate. The document also provides details on how to calculate each KPI and which counters are needed to measure the underlying events.

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 for optimization by collecting data, analyzing problems related to coverage, signal quality and handover success rate, and adjusting parameters like transmit power, antenna tilts and neighboring cell configurations. Common issues addressed are weak coverage, coverage holes, lack of a dominant cell, and cross coverage between cells. Optimization methods and specific cases are presented to resolve different problems.

The document discusses the challenges of troubleshooting problems that occur before any signaling messages are sent, using the example of a UE that gets stuck at "Searching Network...". It explains that to troubleshoot such issues, one needs in-depth knowledge of the physical layer procedures for initial access, including the Random Access Channel (RACH) process, as well as equipment that can monitor physical layer signaling. It then provides details on the RACH process for LTE, including when it occurs, the contention-based vs. contention-free approaches, preamble structure, and timing of preamble transmission and response.

RRC protocols in LTE help manage radio resources and signaling between the UE and network. Key aspects include: 1. RRC defines two UE states - RRC_CONNECTED for active data transfer and RRC_IDLE for idle/paging. 2. Signaling Radio Bearers (SRBs) carry RRC and NAS messages using different logical channels. 3. System information is broadcast on common channels, informing UEs of network configurations and neighbor cells. 4. Handover between cells is supported through the X2 interface for intra-LTE handovers and inter-RAT handovers to other technologies like UMTS or GSM.

LTE uses various frequency bands and duplexing techniques to provide high-speed data and peak download speeds of up to 300 Mbps. It supports mobility of up to 350 km/h and uses advanced technologies like OFDM, SC-FDMA, MIMO and turbo coding to achieve low latency and high bandwidth. LTE specifications define channel bandwidths of 1.4, 3, 5, 10, 15 and 20 MHz with modulation schemes of QPSK, 16QAM and 64QAM.

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.

The document discusses the random access channel (RACH) procedure in LTE networks. It covers: 1) The RACH procedure is used for initial access and synchronization between the UE and network. The physical random access channel (PRACH) is used to perform the initial access. 2) The RACH procedure is performed in scenarios like initial access, re-establishment, handover, and when uplink synchronization is lost. 3) The document provides details on the different steps of the contention-based and non-contention based RACH procedures.

The document discusses various radio frequency (RF) measurement quantities used in LTE field measurements and optimization, including RSRP, RSSI, RSRQ, and SINR. It defines these terms and explains the relationships between them. For example, it describes how RSRP measures the power of a single resource element while RSSI measures power over the entire bandwidth. It also provides information on how measurement results from different tools can help with RF network optimization.