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Publications (21)
This chapter summarizes some potentially useful concepts and information for handling mobility in multi-layer long-term evolution (LTE) networks. The mobility design problem can be split into two regimes: coverage and capacity-limited cases. The chapter focuses on inter-layer mobility of a classical cellular network without small cells. It elaborat...
The long-term evolution (LTE) network performance measured by network or drive test key performance indicators (KPIs) can be perfected by parameter tuning. The most common KPIs which can be based on either network statistics or drive testing are random access setup success rate, call setup success rate (CSSR), evolved radio access bearer (E-RAB)dro...
This chapter introduces the long-term evolution (LTE) network capacity limits and discusses ways to improve the performance during high traffic events (mass events). The highest loaded cells (in terms of data volume and resource utilization) from several different mass events are used to show the process of capacity bottleneck analysis. The average...
Long-term evolution (LTE) radio is designed for the packet connections without any support for circuit switched (CS) connections. This chapter presents the different voice options including CS fallback and voice over LTE (VoLTE) and discusses the VoLTE optimization. It illustrates the timing and the main differences of the voice options. The first...
This chapter provides practical guidelines to take into account when deploying or upgrading the HSPA+ network: antenna and power configuration, neighbor management and carrier planning. Some core and backhaul design aspects are also discussed. The text also provides useful information to help manage capacity growth, including multilayer management...
IntroductionLayer 1 Peak Bit RatesTerminal CategoriesLink Level PerformanceLink BudgetsSpectral EfficiencyLatencyLTE Refarming to GSM SpectrumDimensioningCapacity Management Examples from HSPA NetworksSummaryReferences
This chapter presents High-Speed Downlink Packet Access (HSDPA) for Wideband Code Division Multiple Access (WCDMA), the key new feature included in the Release 5 specifications. It presents HSDPA key aspects and compares with Release 99 downlink packet access possibilities. The chapter summarizes the impact of HSDPA on the terminal uplink (user equ...
Radio resource management (RRM) algorithms are responsible for efficient utilization of the air interface resources. RRM is needed to guarantee Quality of Service (QoS), to maintain the planned coverage area, and to offer high capacity. This chapter describes the WCDMA power control. Then, it presents Handovers. Handovers are needed in cellular sys...
This chapter presents coverage and capacity results and investigates the impact of the radio propagation environment, advanced base station (Node B) solutions, and WCDMA physical layer parameters. The advanced base station solutions include both baseband and antenna techniques. Cell coverage is especially important in terms of the initial network d...
IntroductionMobility Management in Idle StateIntra-LTE HandoversInter-system HandoversDifferences in E-UTRAN and UTRAN MobilitySummaryReferences
IntroductionLayer 1 Peak Bit RatesTerminal CategoriesLink Level PerformanceLink BudgetsSpectral EfficiencyLatencyLTE Refarming to GSM SpectrumDimensioningCapacity Management Examples from HSPA NetworksSummaryReferences
This chapter presents High-Speed Downlink Packet Access (HSDPA) for Wideband Code Division Multiple Access (WCDMA), the key new feature included in the Release 5 specifications. The HSDPA concept has been designed to increase downlink packet data throughput by means of fast physical layer (L1) retransmission and transmission combining, as well as f...
Introduction Cell Coverage Downlink Cell Capacity Capacity Trials 3GPP Performance Requirements Performance Enhancements References
Interference-Based Radio Resource Management Power Control Handovers Measurement of Air Interface Load Admission Control Load Control (Congestion Control) References
This paper presents measurement results for 3GPP Release 5 high speed downlink packet access (HSDPA). The results have been obtained in the laboratory and in the field measurements during 2005. The measurements include peak throughput, link adaptation performance, latency, multiuser capacity, mobility and drive test throughput measurements. The res...
Introduction Cell Coverage Downlink Cell Capacity Capacity Trials 3GPP Performance Requirements Performance Enhancements References