NSN White paper February Nokia Solutions and Networks Smart Scheduler

Size: px
Start display at page:

Download "NSN White paper February 2014. Nokia Solutions and Networks Smart Scheduler"

Transcription

1 NSN White paper February 2014 Nokia Solutions and Networks Smart Scheduler

2 CONTENTS 1. Introduction 3 2. Smart Scheduler Features and Benefits 4 3. Smart Scheduler wit Explicit Multi-Cell Coordination 3.1 Distributed RAN with X2+ and non-ideal backhaul 3.2 Distributed RAN with slow centralized scheduling and non-ideal backhaul Centralized RAN (C-RAN) Enhanced Inter-Cell Interference Control (eicic) with co-channel small cells 4. Further Evolution of LTE Scheduling Summary Abbreviations Page 2

3 1. Introduction As of January 2014, Long Term Evolution (LTE) has been successfully deployed by more than 250 operators, with more than 200 million customers enjoying high mobile broadband data rates. LTE in FDD and TDD mode (TD-LTE) is designed for a so-called frequency reuse of one where all the cells use the same frequency. Reuse of one provides the highest network efficiency and enables high data rates close to the base station. The challenge with reuse of one is the high inter-cell interference when the terminal (User Equipment UE) is located between two cells. The data rate over the cell area is illustrated in Figure 1. Boosting the cell edge performance is the main motivation of Smart Scheduler. Smart Scheduler can also enhance the average data rates and system capacity by considering signal fading and interference in packet scheduling decisions. Smart Scheduler algorithms, benefits, impact on the network architecture and further evolution are discussed in this white paper. If not otherwise explicitly stated, all statements are valid for both LTE (in FDD mode) as well as for TD-LTE. Frequency f1 Frequency f1 Data rate Cell A High data rate close to BTS UE Low data rate at cell edge Cell B Fig. 1. Frequency reuse of one creates high inter-cell interference Page 3

4 2. Smart Scheduler features and benefits LTE radio technology is highly standardized by 3GPP but only with regard to the interfaces the network algorithms including link adaptation, power control and packet scheduling are not standardized. Therefore, there can be differences in network performance due to the different algorithms being used by different vendors. The most relevant features and benefits are described in this section. Packet scheduling can use different input information for resource allocation and for interference coordination: Channel Quality Information (CQI) from UE to BTS for downlink scheduling. Sounding Reference Signal (SRS) measurements and interference measurements in the frequency domain for uplink scheduling. Load and other information exchange over the X2 interface between base stations. X2 interface in Release 8 allows some exchange of information between the base stations, but further extensions will be discussed in 3GPP and can also be added proprietarily. Quality of Service (QoS) parameters from the packet core network These different input information options are illustrated in Figure 2. QoS Gateway QoS Coordination over X2+ Channel quality information (CQI) Cell A UE Cell B Fig. 2. Input information for coordinating the resource usage Page 4

5 Smart Scheduler can utilize the different input values to optimize packet scheduling and link adaptation. LTE allows considerable freedom to define allocations in the time, frequency and power domains. A number of different features are required for the different use cases. The same features are utilized both in Frequency Division Duplex (FDD) and Time Division Duplex (TDD) based LTE. The Smart Scheduler utilizes the following main features: Frequency Selective Scheduling (FSS) improves performance in the case of frequency selective fading and fractional inter-cell interference. FSS consists of Channel Aware Scheduling (CAS) and Interference Aware Scheduling (IAS). The field measurements show +30% gains for the cell edge data rates. Interference shaping further improves the efficiency of the intercell interference avoidance by FSS. When the cell loading is low, the number and set of physical resource blocks is adapted only slowly according to traffic fluctuations. This approach makes it more efficient for the adjacent highly loaded cells to avoid intercell interference based on UE CQI reporting. Studies show gains exceeding 100%. QoS differentiation improves cell edge performance by allocating more resources for users in weak channel conditions. QoS can be utilized to maintain the data rate, for example for video streaming services. Further flexibility is obtained by using operator specific QoS Class Identifier (QCI) values. The minimum guaranteed cell edge data rate can be obtained also by Nominal Bit Rate (NBR) which works even without guaranteed bit rate QoS classes. Cell edge prioritization has only a minor impact on the cell aggregate throughput capacity, in typical case 30% cell edge throughput improvement can be obtained at the cost of 5% cell throughput capacity. The capacity measured in number of satisfied subscribers is still higher. Interference aware uplink power control considers the adjacent cells when allocating the uplink transmission power. The feature minimizes inter-cell interference and helps to boost uplink data rates. Intra-frequency load balancing helps when the load in the adjacent cells is not balanced. The idea is to modify handover parameters based on the information exchange of the X2 interface. If there are double the users in the adjacent cell, the intra-frequency load balancing can improve the cell edge data rate by 30%. Page 5

6 Multi-cell scheduling can reduce the power levels (muting or related variants) in adjacent cells to minimize the interference. The multicell scheduling coordinates resource allocation between multiple cells in time and in frequency, using a selection of users and power levels in multiple cells to combine the benefits of frequencyselective scheduling and spectral efficiency gain due to reduced interference. The coordination happens between the sectors of one base station, or over the X2 interface between the base stations. Multi-cell scheduling can improve cell edge performance by 20%. Multi-cell scheduling requires inter base station time synchronization. TD-LTE base stations need to be synchronized while the synchronization of LTE FDD base stations is not mandatory and is typically not used by operators for FDD deployments. Note also that the reference signals are overlapping in adjacent cells in a synchronized network. Therefore, UEs should preferably support cancellation of common reference signals for better performance. The Smart Scheduler use cases, features and gains are shown in Figure 3 and Figure 4. Figure 4 shows the gains of the individual scheduling functionalities when used jointly. More gain can be obtained in HetNet scenarios with eicic. Use case Feature Fractional inter-cell interference Unbalanced loading between cells Multi-cell scheduling Intra- and inter-frequency load balancing Lower gain Fig. 3. Smart Scheduler use cases and solutions HetNet eicic Minimum cell edge rate required QoS differentation and nominal bit rate Fractional inter-cell interference Frequency selective fading FSS including Interference Aware Scheduling (IAS) and Channel Aware Scheduling (CAS) Baseline scheduler Highest gain 120% 100% 80% Multi-cell scheduling Intra-frequency load balancing Nominal bit rate and QoS Frequency selective scheduling Fig. 4. Smart Scheduler downlink data rate gains with non-ideal backhaul 60% 40% 20% 0% Cell edge Average Page 6

7 Let s now analyze Frequency Selective Scheduling (FSS) the most important part of the Smart Scheduler. The multipath propagation in the mobile environment makes the fading frequency selective. The typical coherence bandwidth of the macro cell channel is 1-2 MHz, therefore, there are faded and non-faded frequencies within one LTE carrier. LTE radio uses Orthogonal Frequency Division Multiple Access (OFDMA) in the downlink and Single Carrier Frequency Division Multiple Access (SC-FDMA) in the uplink. Therefore, FSS allows use of those parts of the carrier (called Physical Resource Blocks) not faded for the transmission. The concept is illustrated in Figure 5. Information about channel fading can be obtained from UE CQI reports in downlink and from Sounding Reference Symbols (SRS) in uplink. Resource block Carrier bandwith Transmit on those resource blocks that are not faded Frequency Fig. 5. Frequency Selective Scheduling to minimize fading impact Page 7

8 FSS can also be applied to avoid inter-cell interference. An example is shown in Figure 6 where the interfering cell is partially loaded. The UE is connected to the target cell but receives strong interference from the adjacent interfering cell. The UE reports sub-banded CQI values in the frequency domain to the target cell. Low CQI values are reported on those sub-bands where the interfering cell has on-going transmission while high CQI values are reported in other sub-bands. The target cell with FSS tends to allocate those downlink physical resources blocks to the UE where the interference is lowest. The other resource blocks in the target cell can be allocated to other UEs that do not receive interference from the adjacent cell. Benefits of FSS include: Effective inter-cell interference coordination without the need for explicit inter-bts coordination Utilization of UE CQI reports for interference mitigation and without the need for coordination signaling between the base stations Improved cell edge data rates as well as total cell capacity. Fractional load in adjacent cell UE reports subband CQI Frequency selective scheduling Frequency Interfering cell CQI 1 (low) CQI 2 (high) CQI 3 (high) CQI 4 (low) CQI 5 (low) CQI 6 (high) CQI 7 (high) CQI 8 (high) UE A Target cell No transmission Transmission in adjacent cell Transmission to UE A Transmission to other UEs Fig. 6. Frequency Selective Scheduling (FSS) to minimize inter-cell interference Page 8

9 As part of the Smart Scheduler concept, the underlying link adaptation function is critical for the success of features such as FSS. The quality of reporting from each active terminal is always monitored and compensation is constantly conducted in order to improve the value of the scheduler decisions. With such methods, NSN has in numerous commercial LTE networks shown the practical value of FSS. An example field measurement result with 10 MHz bandwidth is shown in Figure 7. Cell edge throughput Cell capacity Mbps Mbps FSS off FSS on 5 0 FSS off FSS on Fig. 7. Field measurements with FSS in downlink Interference shaping further improves the efficiency of the inter-cell interference avoidance by FSS. Interference shaping is illustrated in Figure 8. When the cell loading is low, the number and set of physical resource blocks is adapted only slowly according to traffic fluctuations. This approach makes it more efficient for the adjacent high loaded cells to avoid inter-cell interference based on UE CQI reporting. The studies show major gains for the cell edge data rates in those cases where the loading is unbalanced between the cells: the gains can exceed 100%. High gains can be achieved in the distributed solution with cleverer scheduling without any fast signaling over the X2 connection and without any centralized network element. Low loaded cell: Only slow changes in frequency domains High loaded cell: Robust inter-cell interference avoidance based on CQI reports Fig. 8. Interference shaping for more efficient interference avoidance Page 9

10 3. Smart Scheduler with explicit multi-cell coordination Further performance improvements can be obtained by coordinating resource allocation in adjacent base stations. The network architecture options for supporting multi-cell scheduling are shown in Figure 9. a) Distributed RAN with X2+ and non-ideal backhaul enb#1 Coordinated scheduling (inter-enb) Fast local scheduling X2+ enb#1 Coordinated scheduling (inter-enb) Fast local scheduling b) Distributed RAN with slow centralized scheduling and non-ideal backhaul X3 Coordinated scheduling enb#1 Fast local scheduling... enb#n Fast local scheduling c) Centralized RAN with fast centralized scheduling and dark fiber connection Super-eNB (baseband pool) Common packet scheduling Direct fiber with multi-gbps... Fig. 9. Network architecture options for explicit multi-cell scheduling 3.1 Distributed RAN with X2 and non-ideal backhaul Today s LTE architecture (99% of deployments) is shown in Figure 9a using non-ideal backhaul with microwave radio, IP connected fiber or copper based transport. The multi-cell scheduling needs to coordinate the resource usage in adjacent base stations over non-ideal backhaul while still fully utilizing FSS gains in fast scheduling. The coordination between cells of different base stations will utilize the X2 interface. Each scheduler that requests coordination from its neighboring base stations to aid a user at the cell edge can still take into account FSS gains for that user, thus FSS gains can be fully preserved while adding the gains from multi-cell coordination. The evolution from fully distributed architecture to multi-cell coordination over X2 is a straightforward software upgrade no new network elements or interfaces are needed. Note that fast local coordination can be implemented between the cells in one base station without any interbase station coordination. Page 10

11 3.2 Distributed RAN with slow centralized scheduling and non-ideal backhaul Another architecture alternative is shown in Figure 9b with a new centralized network element for coordinating the distributed schedulers. A new interface between base stations and the centralized scheduler is required. Involving an additional interface and information exchange to an additional entity has a negative impact on the responsiveness of this architecture. The distributed base stations still run the fast scheduling while the centralized element can only set scheduling limitations to minimize the interference. The performance gain of the centralized element is similar to the coordination over the X2 interface. Coordinated multi-cell scheduling and muting over non-ideal backhaul was studied in 3GPP under the title Enhanced Coordinated Multipoint (ecomp) during The conclusion taken in December 2013 was that the gains for inter-site macro-macro scenario are below 5% in the best case over intra-site and less if the backhaul latency increases (several tens of ms). The further focus of ecomp will be in the HetNet scenarios between macro cells and small cells. 3.3 Centralized RAN (C-RAN) The final multi-cell architecture shown in Figure 9c is centralized scheduling in the baseband pool. This is the architecture for a network with ideal transport. The baseband pool requires a low latency direct dark fiber connection between the RF heads and the baseband pool. The baseband pool is also referred to as Centralized Radio Access Network (C-RAN). C-RAN is like a super-sized base station. C-RAN enables the most advanced multi-cell coordination because all the functionalities are in the same location: link adaptation, power control, fast FSS and multi-cell coordination. C-RAN architecture also enables Joint Transmission and Joint Reception Coordinated Multipoint (CoMP) between different sites while intra-site CoMP can be implemented also in the distributed RAN architecture. CoMP functionality is defined in 3GPP Release 11 but uplink CoMP can be implemented also with legacy Release 8 UEs while the downlink CoMP requires Release 11 UEs. Uplink CoMP gives more gain, while downlink CoMP gains are limited. An excellent use case for C-RAN is to boost capacity in stadiums and other mass event locations. These events tend to be uplink limited because many people want to send pictures from the event. The UE transmission is received by a single cell in the traditional solution while the same UE transmission can be received by multiple cells and combined in the baseband module. The inter-cell interference turns into a constructive signal. The solution is illustrated in Figure 10. The installation of fiber between baseband modules and RF is relatively simple in these event areas. Page 11

12 NSN Flexi Multiradio base station enables CoMP by providing fast interconnections between the baseband modules. NSN C-RAN has been validated in commercial networks in large stadiums and the practical gains exceed 100%. Fig. 10. Centralized RAN for boosting mass event capacity 3.4 Enhanced Inter-Cell Interference Control (eicic) with co-channel small cells Small cells are an attractive solution for boosting hot spot capacity and coverage. The interference management needs to be considered when the small cells are deployed on the same frequency as the macro cells. 3GPP Release 10 brings a solution for managing the interference in the time domain. The solution is called enhanced Inter-Cell Interference Coordination (eicic) and is shown in Figure 11. The macro cell leaves some empty sub-frames called Almost Blank Subframes (ABS). During these sub-frames, the small cell can serve UEs that would otherwise receive too much co-channel interference from the macro cell. Page 12

13 The benefit of eicic comes when several small cells can benefit from macro cell empty subframes. eicic performance is further boosted in Release 11 by using UE interference cancellation for the minimization of inter-cell interference, which is known as further enhanced ICIC (feicic). Optimized eicic requires that the number of ABS frames and the handover parameters are adjusted dynamically according to the instantaneous traffic conditions and UE locations. The semi-static solution is a slow approach for modifying the feicic parameters over several seconds. The fast feicic adaptation uses quick adaptation for the number of ABS sub-frames to reallocate resources between macro cells and small cells depending on the instantaneous requirements. NSN s unique algorithm is based on the fast adaptation of ABSblanking and cell range extension for maximum benefit from small cell deployments. The throughput gains are shown in Figure 12: dynamic eicic can nearly double the user throughputs in heterogeneous networks. = Sub-frame with normal transmission = Almost blank sub-frame (ABS) Macro Sub-frame (1 ms) Pico Pico cell can serve also such UEs that receive stronger macro cell signal Pico cell can reuse same frequency as macro when UE is closer to pico Fig. 11. Time domain interference management with enhanced ICIC Semi-static felcic 70% Fast felcic 90% Baseline w/o felcic: 0% Fig. 12. Throughput gain from enhanced ICIC Page 13

14 4. Further evolution of LTE scheduling 3GPP is working with Inter-site carrier aggregation in Release 12. The feature allows the UE to receive data simultaneously from the macro cell and from the small cell. The two cells do not need any fiber backhaul, although wireless backhaul with some delay is fine. The X2 interface is used between the macro cell and small cell for scheduler coordination. The macro cell and the small cell can share the same frequency or the small cell can use a dedicated frequency. The feature is illustrated in Figure 11. Inter-site carrier aggregation uses Dual Connectivity where the UE has simultaneous radio connection to both macro and to small cell. That brings benefits in terms of reliable mobility. 3GPP is also working on a solution where UEs can cancel the inter-cell interference by obtaining assistance information from the network. This feature is called Network Assisted Interference Cancellation and Suppression (NAICS) and it is part of Release 12. If UEs can cancel interference, it may be more efficient to use all resources in cochannel cells instead of muting resources. The multi-cell scheduling and muting algorithms need to be designed in such a flexible way that they can benefit from the future advanced UE capabilities. Inter-site Carrier Aggregation and Dual Connectivity Fig. 13. Inter-site carrier aggregation in Release 12 Page 14

15 5. Summary While LTE has been highly standardized by 3GPP, the network algorithms including packet scheduling are not standardized. The packet scheduling in LTE has the freedom to control the resource allocation in the time and in the frequency domain. Smart Scheduler can push cell edge data rates by more than 100% in the presence of inter-cell interference compared to baseline wideband scheduling, and improve the cell capacity by more than +20%. The main component of Smart Scheduler is frequency selective scheduling that avoids the fading and interference in the frequency domain combined with Quality of Service differentiation and intra-frequency load balancing. NSN s innovation Interference Shaping increases the cell edge throughput further by up to 100% when the cell loading is unbalanced. Additional cell edge gains can be obtained by multi-cell scheduling. Multi-cell scheduling is a simple software upgrade to distributed base stations. Scheduling information is shared between base stations over the X2 interface. The detailed standardization of multi-cell coordination is considered in 3GPP Release 12. The most advanced multi-cell coordination can be obtained with baseband pooling in Centralized RAN. The baseband pool deployment assumes direct fiber connection between baseband and RF sites. Centralized RAN provides the biggest benefits in uplink capacity, which is most useful in high capacity events. The efficiency of small cell deployment can be boosted by using dynamic eicic configuration to manage the interference between macro cells and small cells. 6. Abbreviations 3GPP BTS CoMP CQI C-RAN ecomp eicic FDD FSS LTE OFDMA QoS RRH SC-FDMA SRS UE Third Generation Partnership Project Base Station Coordinated Multipoint Channel Quality Information Centralized Radio Access Network Enhanced CoMP Enhanced Inter-Cell Interference Coordination Frequency Division Duplex Frequency Selective Scheduling Long Term Evolution Orthogonal Frequency Division M Quality of Service Remote Radio Head Single Carrier Frequency Division Multiple Access Sounding Reference Symbols User Equipment Page 15

16 Nokia Solutions and Networks P.O. Box 1 FI Finland Visiting address: Karaportti 3, ESPOO, Finland Switchboard Product code C WP EN 2014 Nokia Solutions and Networks. All rights reserved. Public NSN is a trademark of Nokia Solutions and Networks. Nokia is a registered trademark of Nokia Corporation. Other product names mentioned in this document may be trademarks of their respective owners, and they are mentioned for identification purposes only.

LTE-Advanced Carrier Aggregation Optimization

LTE-Advanced Carrier Aggregation Optimization Nokia Networks LTE-Advanced Carrier Aggregation Optimization Nokia Networks white paper LTE-Advanced Carrier Aggregation Optimization Contents Introduction 3 Carrier Aggregation in live networks 4 Multi-band

More information

What is going on in Mobile Broadband Networks?

What is going on in Mobile Broadband Networks? Nokia Networks What is going on in Mobile Broadband Networks? Smartphone Traffic Analysis and Solutions White Paper Nokia Networks white paper What is going on in Mobile Broadband Networks? Contents Executive

More information

Cooperative Techniques in LTE- Advanced Networks. Md Shamsul Alam

Cooperative Techniques in LTE- Advanced Networks. Md Shamsul Alam Cooperative Techniques in LTE- Advanced Networks Md Shamsul Alam Person-to-person communications Rich voice Video telephony, video conferencing SMS/MMS Content delivery Mobile TV High quality video streaming

More information

Evolution in Mobile Radio Networks

Evolution in Mobile Radio Networks Evolution in Mobile Radio Networks Multiple Antenna Systems & Flexible Networks InfoWare 2013, July 24, 2013 1 Nokia Siemens Networks 2013 The thirst for mobile data will continue to grow exponentially

More information

White paper. Mobile broadband with HSPA and LTE capacity and cost aspects

White paper. Mobile broadband with HSPA and LTE capacity and cost aspects White paper Mobile broadband with HSPA and LTE capacity and cost aspects Contents 3 Radio capacity of mobile broadband 7 The cost of mobile broadband capacity 10 Summary 11 Abbreviations The latest generation

More information

The future of mobile networking. David Kessens

The future of mobile networking. David Kessens <david.kessens@nsn.com> The future of mobile networking David Kessens Introduction Current technologies Some real world measurements LTE New wireless technologies Conclusion 2 The future of mobile networking

More information

Nokia Liquid Radio Software Suites

Nokia Liquid Radio Software Suites Nokia Liquid Radio Software Suites Meet the constantly changing capacity demands of mobile broadband in the most efficient way Executive Summary Nokia Liquid Radio Software Suites help operators make their

More information

Nokia Siemens Networks LTE 1800 MHz Introducing LTE with maximum reuse of GSM assets

Nokia Siemens Networks LTE 1800 MHz Introducing LTE with maximum reuse of GSM assets Nokia Siemens Networks LTE 1800 MHz Introducing LTE with maximum reuse of GSM assets White paper Table of contents 1. Overview... 3 2. 1800 MHz spectrum... 3 3. Traffic Migration... 5 4. Deploying LTE-GSM

More information

Efficient resource utilization improves the customer experience

Efficient resource utilization improves the customer experience White paper Efficient resource utilization improves the customer experience Multiflow, aggregation and multi band load balancing for Long Term HSPA Evolution Executive summary Contents 2. Executive summary

More information

Interference in LTE Small Cells:

Interference in LTE Small Cells: Interference in LTE Small Cells: Status, Solutions, Perspectives. Forum on small cells, 2012, December. IEEE Globecom 2012 Presenter: Dr Guillaume de la Roche Mindspeed France 1 Mindspeed: Short history

More information

Nokia Siemens Networks Load balancing mobile broadband traffic in LTE HetNets

Nokia Siemens Networks Load balancing mobile broadband traffic in LTE HetNets Nokia Siemens Networks Load balancing mobile broadband traffic in LTE HetNets The application of traffic steering methods 2/24 Table of contents 1. Executive summary... 3 2. Introduction... 4 2.1 Traffic

More information

2020: Beyond 4G Radio Evolution for the Gigabit Experience. White paper

2020: Beyond 4G Radio Evolution for the Gigabit Experience. White paper 2020: Beyond 4G Radio Evolution for the Gigabit Experience White paper Executive summary Contents 3 Mobile networks face a decade of change 4 Continued global effort will be vital 5 State of the art LTE-Advanced

More information

Dimensioning, configuration and deployment of Radio Access Networks. part 5: HSPA and LTE HSDPA. Shared Channel Transmission

Dimensioning, configuration and deployment of Radio Access Networks. part 5: HSPA and LTE HSDPA. Shared Channel Transmission HSDPA Dimensioning, configuration and deployment of Radio Access Networks. part 5: HSPA and LTE Enhanced Support for Downlink Packet Data Higher Capacity Higher Peak data rates Lower round trip delay Part

More information

Technical and economical assessment of selected LTE-A schemes.

Technical and economical assessment of selected LTE-A schemes. Technical and economical assessment of selected LTE-A schemes. Heinz Droste,, Darmstadt Project Field Intelligent Wireless Technologies & Networks 1 Mobile Networks enabler for connected life & work. Textbox

More information

Cloud RAN. ericsson White paper Uen 284 23-3271 September 2015

Cloud RAN. ericsson White paper Uen 284 23-3271 September 2015 ericsson White paper Uen 284 23-3271 September 2015 Cloud RAN the benefits of virtualization, centralization and coordination Mobile networks are evolving quickly in terms of coverage, capacity and new

More information

LTE in Unlicensed Spectrum: European Regulation and Co-existence Considerations

LTE in Unlicensed Spectrum: European Regulation and Co-existence Considerations 3GPP workshop on LTE in unlicensed spectrum Sophia Antipolis, France, June 13, 2014 RWS-140002 LTE in Unlicensed Spectrum: European Regulation and Co-existence Considerations Sari Nielsen & Antti Toskala

More information

LTE Mobility Enhancements

LTE Mobility Enhancements Qualcomm Incorporated February 2010 Table of Contents [1] Introduction... 1 [2] LTE Release 8 Handover Procedures... 2 2.1 Backward Handover... 2 2.2 RLF Handover... 3 2.3 NAS Recovery... 5 [3] LTE Forward

More information

Nokia Networks. Voice over LTE (VoLTE) Optimization

Nokia Networks. Voice over LTE (VoLTE) Optimization Nokia Networks Voice over LTE (VoLTE) Optimization Contents 1. Introduction 3 2. VoIP Client Options 5 3. Radio Network Optimization 6 4. Voice Quality Optimization 11 5. Handset Power Consumption Optimization

More information

THE Evolution of Mobile network and THE role of Network transport. Rodolfo Di Muro, PhD, MBA Programs marketing

THE Evolution of Mobile network and THE role of Network transport. Rodolfo Di Muro, PhD, MBA Programs marketing THE Evolution of Mobile network and THE role of Network transport Rodolfo Di Muro, PhD, MBA Programs marketing Agenda 1 Mobile network evolution business opportunities 2 The role of the transport network

More information

Customer Training Catalog Training Programs WCDMA RNP&RNO Technical Training

Customer Training Catalog Training Programs WCDMA RNP&RNO Technical Training Customer Training Catalog Training Programs Customer Training Catalog Training Programs WCDMA RNP&RNO Technical Training HUAWEI Learning Service 2015 COMMERCIAL IN CONFIDENCE 1 Customer Training Catalog

More information

Wireless Technologies for the 450 MHz band

Wireless Technologies for the 450 MHz band Wireless Technologies for the 450 MHz band By CDG 450 Connectivity Special Interest Group (450 SIG) September 2013 1. Introduction Fast uptake of Machine- to Machine (M2M) applications and an installed

More information

LTE-Advanced UE Capabilities - 450 Mbps and Beyond!

LTE-Advanced UE Capabilities - 450 Mbps and Beyond! LTE-Advanced UE Capabilities - 450 Mbps and Beyond! Eiko Seidel, Chief Technical Officer NoMoR Research GmbH, Munich, Germany March, 2014 Summary LTE networks get more mature and new terminals of different

More information

LTE Performance and Analysis using Atoll Simulation

LTE Performance and Analysis using Atoll Simulation IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 9, Issue 6 Ver. III (Nov Dec. 2014), PP 68-72 LTE Performance and Analysis using Atoll Simulation

More information

Prepared by: Date: Document: Angel Ivanov 23 Nov 2010 NT

Prepared by: Date: Document: Angel Ivanov 23 Nov 2010 NT TD-LTE and FDD-LTE A Basic Comparison Prepared by: Date: Document: Angel Ivanov 23 Nov 2010 NT10-00185 Ascom (2010) All rights reserved. TEMS is a trademark of Ascom. All other trademarks are the property

More information

Evolution of the Air Interface From 2G Through 4G and Beyond

Evolution of the Air Interface From 2G Through 4G and Beyond Evolution of the Air Interface From 2G Through 4G and Beyond Presentation to IEEE Ottawa Section / Alliance of IEEE Consultants Network (AICN) - 2nd May 2012 Frank Rayal BLiNQ Networks/ Telesystem Innovations

More information

Voice services over Adaptive Multi-user Orthogonal Sub channels An Insight

Voice services over Adaptive Multi-user Orthogonal Sub channels An Insight TEC Voice services over Adaptive Multi-user Orthogonal Sub channels An Insight HP 4/15/2013 A powerful software upgrade leverages quaternary modulation and MIMO techniques to improve network efficiency

More information

Inter-Cell Interference Coordination (ICIC) Technology

Inter-Cell Interference Coordination (ICIC) Technology Inter-Cell Interference Coordination (ICIC) Technology Dai Kimura Hiroyuki Seki Long Term Evolution (LTE) is a promising standard for next-generation cellular systems targeted to have a peak downlink bit

More information

Mobile Network Evolution Part 1. GSM and UMTS

Mobile Network Evolution Part 1. GSM and UMTS Mobile Network Evolution Part 1 GSM and UMTS GSM Cell layout Architecture Call setup Mobility management Security GPRS Architecture Protocols QoS EDGE UMTS Architecture Integrated Communication Systems

More information

Get the best performance from your LTE Network with MOBIPASS

Get the best performance from your LTE Network with MOBIPASS Get the best performance from your LTE Network with MOBIPASS The most powerful, user friendly and scalable enodeb test tools family for Network Equipement Manufacturers and Mobile Network Operators Network

More information

3GPP Wireless Standard

3GPP Wireless Standard 3GPP Wireless Standard Shishir Pandey School of Technology and Computer Science TIFR, Mumbai April 10, 2009 Shishir Pandey (TIFR) 3GPP Wireless Standard April 10, 2009 1 / 23 3GPP Overview 3GPP : 3rd Generation

More information

Heterogeneous LTE Networks and Inter-Cell Interference Coordination

Heterogeneous LTE Networks and Inter-Cell Interference Coordination Heterogeneous LTE Networks and Inter-Cell Interference Coordination Volker Pauli, Juan Diego Naranjo, Eiko Seidel Nomor Research GmbH, Munich, Germany December, 2010 Summary Initial deployments of LTE

More information

A Comparison of LTE Advanced HetNets and Wi-Fi

A Comparison of LTE Advanced HetNets and Wi-Fi Qualcomm Incorporated October 2011 QUALCOMM is a registered trademark of QUALCOMM Incorporated in the United States and may be registered in other countries. Other product and brand names may be trademarks

More information

App coverage. ericsson White paper Uen 284 23-3212 Rev B August 2015

App coverage. ericsson White paper Uen 284 23-3212 Rev B August 2015 ericsson White paper Uen 284 23-3212 Rev B August 2015 App coverage effectively relating network performance to user experience Mobile broadband networks, smart devices and apps bring significant benefits

More information

LTE BACKHAUL REQUIREMENTS: A REALITY CHECK

LTE BACKHAUL REQUIREMENTS: A REALITY CHECK By: Peter Croy, Sr. Network Architect, Aviat Networks INTRODUCTION LTE mobile broadband technology is now being launched across the world with more than 140 service providers committed to implement it

More information

MNS Viewpoint: LTE EVOLUTION IN AFRICA 1. Introduction

MNS Viewpoint: LTE EVOLUTION IN AFRICA 1. Introduction MNS Viewpoint: LTE EVOLUTION IN AFRICA 1. Introduction Wireless communications have evolved rapidly since the emergence of 2G networks. 4G technology (also called LTE), enables to answer the new data market

More information

Solution for cell edge performance improvement and dynamic load balancing. Qualcomm Technologies, Inc.

Solution for cell edge performance improvement and dynamic load balancing. Qualcomm Technologies, Inc. HSPA+ Multiflow Solution for cell edge performance improvement and dynamic load balancing Feburary 1, 2014 Qualcomm Technologies, Inc. Not to be used, copied, reproduced, or modified in whole or in part,

More information

HSPA, LTE and beyond. HSPA going strong. PRESS INFORMATION February 11, 2011

HSPA, LTE and beyond. HSPA going strong. PRESS INFORMATION February 11, 2011 HSPA, LTE and beyond The online multimedia world made possible by mobile broadband has changed people s perceptions of data speeds and network service quality. Regardless of where they are, consumers no

More information

Simplified network architecture delivers superior mobile broadband

Simplified network architecture delivers superior mobile broadband White paper Simplified network architecture delivers superior mobile broadband Profitable wireless broadband with Internet-HSPA Contents 3 Executive Summary 4 Mobile data traffic is growing strongly 5

More information

Business aware traffic steering

Business aware traffic steering Nokia Networks Business aware traffic steering Nokia Networks white paper Business aware traffic steering Contents 1. Executive Summary 3 2. Static load or QoS-based traffic steering alone is no longer

More information

LTE and Network Evolution

LTE and Network Evolution ITU-T Workshop on Bridging the Standardization Gap and Interactive Training Session (Nadi, Fiji, 4 6 July 2011 ) LTE and Network Evolution JO, Sungho Deputy Senior Manager, SKTelecom Nadi, Fiji, 4 6 July

More information

1 Introduction 1 1.1 Services and Applications for HSPA 3 1.2 Organization of the Book 6 References 7

1 Introduction 1 1.1 Services and Applications for HSPA 3 1.2 Organization of the Book 6 References 7 Figures and Tables About the Authors Preface Foreword Acknowledgements xi xix xxi xxiii xxv 1 Introduction 1 1.1 Services and Applications for HSPA 3 1.2 Organization of the Book 6 References 7 2 Overview

More information

Architecture and transport for mobile broadband backhaul. Kåre Gustafsson Ericsson Research 2010-11-04

Architecture and transport for mobile broadband backhaul. Kåre Gustafsson Ericsson Research 2010-11-04 Architecture and transport for mobile broadband backhaul Kåre Gustafsson Ericsson Research 2010-11-04 outline Technology and market drivers Link technologies Backhauling of Heterogeneous Networks Main

More information

Mobile broadband for all

Mobile broadband for all ericsson White paper Uen 284 23-3195 Rev B March 2015 Mobile broadband for all optimizing radio technologies As operators roll out LTE 4G networks, WCDMA/HSPA 3G technology is rapidly shifting from the

More information

Aalborg Universitet. Published in: IEEE Wireless Communications. DOI (link to publication from Publisher): 10.1109/MWC.2013.

Aalborg Universitet. Published in: IEEE Wireless Communications. DOI (link to publication from Publisher): 10.1109/MWC.2013. Aalborg Universitet Enhanced Inter-Cell Interference Coordination in Co-Channel Multi-Layer LTE- Advanced Networks Pedersen, Klaus I.; Wang, Yuanye; Strzyz, Stanislav; Frederiksen, Frank Published in:

More information

Outdoor LTE Infrastructure Equipment (enodeb)

Outdoor LTE Infrastructure Equipment (enodeb) Outdoor LTE Infrastructure Equipment () Kimio Watanabe Mamoru Machida Fujitsu has developed outdoor Long Term Evolution (LTE) infrastructure equipment () based on the specifications in the 3rd Generation

More information

Cloud SON: A New Member of the SON Family

Cloud SON: A New Member of the SON Family 1 Cloud SON: A New Member of the SON Family A Reverb Networks White Paper By Dr. Nicolas Cotanis 2 Table of Contents Introduction... 3 A New Paradigm How Cloud RAN Changes the Picture... 4 Cloud RAN Front

More information

End to End Delay Performance Evaluation for VoIP in the LTE Network

End to End Delay Performance Evaluation for VoIP in the LTE Network ENSC 427 COMMUNICATION NETWORKS SPRING 2013 Final Project Presentation End to End Delay Performance Evaluation for VoIP in the LTE Network Dai, Hongxin Ishita, Farah Lo, Hao Hua danield @ sfu.ca fishita

More information

small cells portfolio: integrating macro with small cells for best coverage and capacity

small cells portfolio: integrating macro with small cells for best coverage and capacity small cells portfolio: integrating macro with small cells for best coverage and capacity Nokia Solutions and Networks is extending its small cells offering to bring operators maximum benefit from combining

More information

LTE Evolution for Cellular IoT Ericsson & NSN

LTE Evolution for Cellular IoT Ericsson & NSN LTE Evolution for Cellular IoT Ericsson & NSN LTE Evolution for Cellular IoT Overview and introduction White Paper on M2M is geared towards low cost M2M applications Utility (electricity/gas/water) metering

More information

Wireless Backhaul Trends & Challenges. Ron Nadiv, VP R&D May 2012

Wireless Backhaul Trends & Challenges. Ron Nadiv, VP R&D May 2012 Wireless Backhaul Trends & Challenges Ron Nadiv, VP R&D May 2012 Wireless Backhaul Trends & Challenges Presentation Overview Ceragon at a glance Cellular Backhaul & Microwave PtP Radios Market & Technology

More information

AirHarmony 4000. Outdoor LTE-Advanced Mini-Macro Base Station

AirHarmony 4000. Outdoor LTE-Advanced Mini-Macro Base Station AirHarmony 4000 Outdoor LTE-Advanced Mini-Macro Base Station Multi-Function, Compact and Versatile Redefining the economics of LTE-Advanced Heterogeneous Deployment a leading LTE Small and Compact RAN

More information

WHITE PAPER. Realistic LTE Performance From Peak Rate to Subscriber Experience

WHITE PAPER. Realistic LTE Performance From Peak Rate to Subscriber Experience WHITE PAPER Realistic LTE Performance From Peak Rate to Subscriber Experience Realistic LTE Performance From Peak Rate to Subscriber Experience Introduction Peak data rates are often perceived as actual

More information

3GPP Technologies: Load Balancing Algorithm and InterNetworking

3GPP Technologies: Load Balancing Algorithm and InterNetworking 2014 4th International Conference on Artificial Intelligence with Applications in Engineering and Technology 3GPP Technologies: Load Balancing Algorithm and InterNetworking Belal Abuhaija Faculty of Computers

More information

Seminario AGCOM LTE per il mobile broadband: tecnologia, regolamentazione, ecosistema e mercato Roma, 24 Febbraio 2012. PARTE II: Tecnologia LTE

Seminario AGCOM LTE per il mobile broadband: tecnologia, regolamentazione, ecosistema e mercato Roma, 24 Febbraio 2012. PARTE II: Tecnologia LTE Security Level: Seminario AGCOM LTE per il mobile broadband: tecnologia, regolamentazione, ecosistema e mercato Roma, 24 Febbraio 2012 PARTE II: Tecnologia LTE www.huawei.com Fabio Moresi Country Marketing

More information

HSPA+ and LTE Test Challenges for Multiformat UE Developers

HSPA+ and LTE Test Challenges for Multiformat UE Developers HSPA+ and LTE Test Challenges for Multiformat UE Developers Presented by: Jodi Zellmer, Agilent Technologies Agenda Introduction FDD Technology Evolution Technology Overview Market Overview The Future

More information

CHAPTER - 4 CHANNEL ALLOCATION BASED WIMAX TOPOLOGY

CHAPTER - 4 CHANNEL ALLOCATION BASED WIMAX TOPOLOGY CHAPTER - 4 CHANNEL ALLOCATION BASED WIMAX TOPOLOGY 4.1. INTRODUCTION In recent years, the rapid growth of wireless communication technology has improved the transmission data rate and communication distance.

More information

4G Wireless Technology

4G Wireless Technology 4G Wireless Technology Airspan Technical Symposium May 3, 2010 By Donn Swedenburg and Mark T. Pflum RVW, Inc. (402)564-2876 1 4G Wireless TOPICS 4G Wireless Definition Technologies used in 4G Pre-4G Real

More information

GSM VOICE CAPACITY EVOLUTION WITH VAMOS Strategic White Paper

GSM VOICE CAPACITY EVOLUTION WITH VAMOS Strategic White Paper GSM VOICE CAPACITY EVOLUTION WITH VAMOS Strategic White Paper Table of contents VAMOS increases your GSM voice capacity at minimum investment / 1 Take the full benefit of VAMOS / 1 Standard aspects / 1

More information

LTE Advanced enb Small Cell System. Topologies and Applications

LTE Advanced enb Small Cell System. Topologies and Applications Joint ITU-GISFI Workshop on Bridging the Standardization Gap: Workshop on Sustainable Rural Communications (Bangalore, India, 17-18 December 2012) LTE Advanced enb Small Cell System Design Challenges,

More information

Comparing WiMAX and HSPA+ White Paper

Comparing WiMAX and HSPA+ White Paper Comparing WiMAX and HSPA+ White Paper Introduction HSPA+ or HSPA Evolved is the next step in the 3GPP evolution. With 3GPP Rel-7 and Rel-8, several new features are added to this 3G WCDMA technology,

More information

Enterprise Connectivity over Mobile Broadband

Enterprise Connectivity over Mobile Broadband NSN White paper October 2013 Enterprise Connectivity over Mobile Broadband Enabling Carrier Ethernet over LTE Networks CONTENTS Executive Summary 2 Market Trends 3 Target Customers 6 Proposed Solution

More information

Bringing Mobile Broadband to Rural Areas. Ulrich Rehfuess Head of Spectrum Policy and Regulation Nokia Siemens Networks

Bringing Mobile Broadband to Rural Areas. Ulrich Rehfuess Head of Spectrum Policy and Regulation Nokia Siemens Networks Bringing Mobile Broadband to Rural Areas Ulrich Rehfuess Head of Spectrum Policy and Regulation Nokia Siemens Networks Agenda Drivers in Mobile Broadband Why LTE? Market Status, Networks and Devices Implementation

More information

irelay Using LTE Relay as a Backhaul for Small Cells High Performance, Low Cost Backhaul Extending the range of LTE-Advanced Public Access

irelay Using LTE Relay as a Backhaul for Small Cells High Performance, Low Cost Backhaul Extending the range of LTE-Advanced Public Access irelay Using LTE Relay as a Backhaul for Small Cells High Performance, Low Cost Backhaul Extending the range of LTE-Advanced Public Access a leading LTE Small and Compact RAN solution provider www.airspan.com

More information

Inter-Cell Interference Coordination for LTE-A

Inter-Cell Interference Coordination for LTE-A Inter-Cell Interference Coordination for LTE-A Volker Pauli, Eiko Seidel Nomor Research GmbH, Munich, Germany September, 2011 Summary Multi-layer heterogeneous network layout including small cell base

More information

CDMA Network Planning

CDMA Network Planning CDMA Network Planning by AWE Communications GmbH www.awe-com.com Contents Motivation Overview Network Planning Module Air Interface Cell Load Interference Network Simulation Simulation Results by AWE Communications

More information

Small Cell Technology Overview ( and 3.5GHz Small Cell CBS Band)

Small Cell Technology Overview ( and 3.5GHz Small Cell CBS Band) Small Cell Technology Overview ( and 3.5GHz Small Cell CBS Band) Milind Buddhikot, Rob Soni March 13, 2013 1 FCC 3.5 GHz NPRM Workshop MMB Bandwidth Hungry Applications will Continue the Wireless Data

More information

4G Americas Self-Optimizing Networks: The Benefits of SON in LTE October 2013 1

4G Americas Self-Optimizing Networks: The Benefits of SON in LTE October 2013 1 4G Americas Self-Optimizing Networks: The Benefits of SON in LTE October 2013 1 TABLE OF CONTENTS 1 INTRODUCTION... 4 1.1 Goals of This White Paper... 4 2 3GPP EVOLUTION AND SON... 4 2.1 LTE SON High-Level

More information

Multiple Access Techniques

Multiple Access Techniques Chapter 8 Multiple Access Techniques Multiple access techniques are used to allow a large number of mobile users to share the allocated spectrum in the most efficient manner. As the spectrum is limited,

More information

Cellular Network Planning and Optimization Part XI: HSDPA. Jyri Hämäläinen, Communications and Networking Department, TKK, 25.1.

Cellular Network Planning and Optimization Part XI: HSDPA. Jyri Hämäläinen, Communications and Networking Department, TKK, 25.1. Cellular Network Planning and Optimization Part XI: HSDPA Jyri Hämäläinen, Communications and Networking Department, TKK, 25.1.2008 HSDPA HSDPA = High Speed Downlink Packet Access. Release 5 was the first

More information

Timing over Packet. Technical Brief

Timing over Packet. Technical Brief Technical Brief 02/08 1. Abstract This paper is designed to help operators understand how to deploy Precision Time Protocol (PTP, or IEEE 1588v2) in mobile networks for the purpose of synchronizing base

More information

4G Mobile Broadband Evolution: Release 10, Release 11 and Beyond HSPA+, SAE/LTE and LTE-Advanced

4G Mobile Broadband Evolution: Release 10, Release 11 and Beyond HSPA+, SAE/LTE and LTE-Advanced 4G Mobile Broadband Evolution: Release 10, Release 11 and Beyond HSP+, SE/LTE and LTE-dvanced October 2012 3GPP Based Subscriber Growth More than 1 Billion HSP/LTE Subscribers today Projection for nearly

More information

Inter-cell Interference Mitigation Reduction in LTE Using Frequency Reuse Scheme

Inter-cell Interference Mitigation Reduction in LTE Using Frequency Reuse Scheme International Journal of Scientific and Research Publications, Volume 5, Issue 8, August 2015 1 Inter-cell Interference Mitigation Reduction in LTE Using Frequency Reuse Scheme Rupali Patil 1, R.D.Patane

More information

1 Mobility performance optimization for 3GPP LTE HetNets

1 Mobility performance optimization for 3GPP LTE HetNets 1 Mobility performance optimization for 3GPP LTE HetNets Kathiravetpillai Sivanesan, Jialin Zou, Subramanian Vasudevan, and Sudeep Palat Heterogeneous networks (HetNets) are being deployed as a feasible

More information

End-user Benefits of LTE Dual Connectivity in Heterogeneous Networks

End-user Benefits of LTE Dual Connectivity in Heterogeneous Networks End-user Benefits of LTE Dual Connectivity in Heterogeneous Networks 21. VDE/ITG Fachtagung Mobilkommunikation 11.-12. Mai 2016, Osnabrueck Camilo olano, Ericsson Radio Research Germany Commercial in confidence

More information

Use of MPLS in Mobile Backhaul Networks

Use of MPLS in Mobile Backhaul Networks Use of MPLS in Mobile Backhaul Networks Introduction Backhaul plays a vital role in mobile networks by acting as the link between Radio Access Network (RAN) equipment (Eg: radio basestation) and the mobile

More information

LTE, WLAN, BLUETOOTHB

LTE, WLAN, BLUETOOTHB LTE, WLAN, BLUETOOTHB AND Aditya K. Jagannatham FUTURE Indian Institute of Technology Kanpur Commonwealth of Learning Vancouver 4G LTE LTE (Long Term Evolution) is the 4G wireless cellular standard developed

More information

LTE Advanced A Further Evolutionary Step for Next Generation Mobile Networks

LTE Advanced A Further Evolutionary Step for Next Generation Mobile Networks 21 2th International Conference Radioelektronika LTE Advanced A Further Evolutionary Step for Next Generation Mobile Networks Vít ŠTENCEL 1, Andreas MÜLLER 2, Philipp FRANK 3 1 T-Mobile, Tomíčkova 2144/1,

More information

3GPP & unlicensed spectrum

3GPP & unlicensed spectrum IEEE 802 Interim Session Atlanta, USA Jan 11-16, 2015 doc.: IEEE 802.19-15/0008r0 3GPP & unlicensed spectrum Dino Flore Chairman of 3GPP TSG-RAN (Qualcomm Technologies Inc.) 3GPP 2013 3GPP & unlicensed

More information

Technology Vision 2020 Reducing network latency to milliseconds

Technology Vision 2020 Reducing network latency to milliseconds Nokia Networks FutureWorks Technology Vision 2020 Reducing network latency to milliseconds Nokia Networks white paper Technology Vision 2020 Reducing network latency to milliseconds Contents Executive

More information

www.ovum.com LTE450 Julian Bright, Senior Analyst Julian.bright@ovum.com LTE450 Global Seminar 2014 Copyright Ovum 2014. All rights reserved.

www.ovum.com LTE450 Julian Bright, Senior Analyst Julian.bright@ovum.com LTE450 Global Seminar 2014 Copyright Ovum 2014. All rights reserved. www.ovum.com LTE450 Julian Bright, Senior Analyst Julian.bright@ovum.com LTE450 Global Seminar 2014 We are integrating 2 complementary ITM businesses Telecoms & IT Research Telecoms & Media Research 60+

More information

LTE Multimedia Broadcast Multicast Services (MBMS)

LTE Multimedia Broadcast Multicast Services (MBMS) LTE Multimedia Broadcast Multicast Services (MBMS) LTE is the technology of choice for mobile operators because it delivers significantly higher bandwidth with the lowest amount of spectral resources.

More information

WiMAX and the IEEE 802.16m Air Interface Standard - April 2010

WiMAX and the IEEE 802.16m Air Interface Standard - April 2010 WiMAX and the IEEE 802.16m Air Interface Standard - April 2010 Introduction The IEEE 802.16e-2005 amendment to the IEEE Std 802.16-2004 Air Interface Standard which added Scalable-Orthogonal Frequency

More information

Optimization Handoff in Mobility Management for the Integrated Macrocell - Femtocell LTE Network

Optimization Handoff in Mobility Management for the Integrated Macrocell - Femtocell LTE Network Optimization Handoff in Mobility Management for the Integrated Macrocell - Femtocell LTE Network Ms.Hetal Surti PG Student, Electronics & Communication PIT, Vadodara E-mail Id:surtihetal99@gmail.com Mr.Ketan

More information

Architecture Overview NCHU CSE LTE - 1

Architecture Overview NCHU CSE LTE - 1 Architecture Overview NCHU CSE LTE - 1 System Architecture Evolution (SAE) Packet core networks are also evolving to the flat System Architecture Evolution (SAE) architecture. This new architecture optimizes

More information

LTE OPTIMIZATION AND MOBILE NETWORK

LTE OPTIMIZATION AND MOBILE NETWORK FUTUREMOBILE COMMUNICATION: LTE OPTIMIZATION AND MOBILE NETWORK VIRTUALIZATION Yasir Zaki, Andreas Timm Giel,, Carmelita Görg University of Bremen, Technical University of Hamburg Euroview July 23 rd 2012

More information

LTE Release 8 and beyond. February 2009

LTE Release 8 and beyond. February 2009 LTE Release 8 and beyond February 2009 Disclaimer Nothing in this presentation is an offer to sell any of the parts referenced herein. This presentation may reference and/or show images of parts and/or

More information

Mobile Communications TCS 455

Mobile Communications TCS 455 Mobile Communications TCS 455 Dr. Prapun Suksompong prapun@siit.tu.ac.th Lecture 26 1 Office Hours: BKD 3601-7 Tuesday 14:00-16:00 Thursday 9:30-11:30 Announcements Read the following from the SIIT online

More information

Lecture 1. Introduction to Wireless Communications 1

Lecture 1. Introduction to Wireless Communications 1 896960 Introduction to Algorithmic Wireless Communications Lecture 1. Introduction to Wireless Communications 1 David Amzallag 2 May 25, 2008 Introduction to cellular telephone systems. How a cellular

More information

LTE enodeb Installation and Maintenance Tests

LTE enodeb Installation and Maintenance Tests Application Note LTE enodeb Installation and Maintenance Tests Introduction The Long-Term Evolution (LTE) specifications are defined by the Third Generation Partnership Project (3GPP), which is part of

More information

LTE network in a box. Nokia Networks

LTE network in a box. Nokia Networks Nokia Networks LTE network in a box Public safety networks will gradually evolve to LTE-based technology in the coming years. Such networks must offer much higher resilience and service availability than

More information

802.11n in the Outdoor Environment

802.11n in the Outdoor Environment POSITION PAPER 802.11n in the Outdoor Environment How Motorola is transforming outdoor mesh networks to leverage full n advantages Municipalities and large enterprise customers are deploying mesh networks

More information

LTE PHY Fundamentals Roger Piqueras Jover

LTE PHY Fundamentals Roger Piqueras Jover LTE PHY Fundamentals Roger Piqueras Jover DL Physical Channels - DL-SCH: The DownLink Shared CHannel is a channel used to transport down-link user data or Radio Resource Control (RRC) messages, as well

More information

FIBRE TO THE BTS IMPROVING NETWORK FLEXIBILITY & ENERGY EFFICIENCY

FIBRE TO THE BTS IMPROVING NETWORK FLEXIBILITY & ENERGY EFFICIENCY FIBRE TO THE BTS IMPROVING NETWORK FLEXIBILITY & ENERGY EFFICIENCY (Study Paper by FLA Division) Ram Krishna Dy. Director General (FLA) TEC New Delhi, DoT, Govt. of India. E-mail: ddgfla.tec@gov.in Mrs.

More information

An Interference Avoiding Wireless Network Architecture for Coexistence of CDMA 2000 1x EVDO and LTE Systems

An Interference Avoiding Wireless Network Architecture for Coexistence of CDMA 2000 1x EVDO and LTE Systems ICWMC 211 : The Seventh International Conference on Wireless and Mobile Communications An Interference Avoiding Wireless Network Architecture for Coexistence of CDMA 2 1x EVDO and LTE Systems Xinsheng

More information

A Novel Decentralized Time Slot Allocation Algorithm in Dynamic TDD System

A Novel Decentralized Time Slot Allocation Algorithm in Dynamic TDD System A Novel Decentralized Time Slot Allocation Algorithm in Dynamic TDD System Young Sil Choi Email: choiys@mobile.snu.ac.kr Illsoo Sohn Email: sohnis@mobile.snu.ac.kr Kwang Bok Lee Email: klee@snu.ac.kr Abstract

More information

white paper Basic Concepts of WCDMA Radio Access Network

white paper Basic Concepts of WCDMA Radio Access Network Basic Concepts of WCDMA Radio Access Network Table of contents 1 Background 3 2 2 WCDMA a development from GSM and CDMA 4 2.1 Code Division Multiple Access and WCDMA 4 3 Radio Network Functionality 4 3.1

More information

Enhanced Cell_FACH raises operator revenuegenerating

Enhanced Cell_FACH raises operator revenuegenerating Nokia Networks Enhanced Cell_FACH raises operator revenuegenerating potential Deliver HSPA+ services with lower latency, faster call set up and longer device battery life Contents 1. Executive Summary

More information

LTE-Advanced: qué aportará a los operadores más allá de mayor capacidad y velocidad

LTE-Advanced: qué aportará a los operadores más allá de mayor capacidad y velocidad LTE-Advanced: qué aportará a los operadores más allá de mayor capacidad y velocidad Erasmo Rojas Director of Latin America & Caribbean 4G Americas 11 junio de 2013 4G Americas Board of Governors Mobile

More information

Implementation of Mobile Measurement-based Frequency Planning in GSM

Implementation of Mobile Measurement-based Frequency Planning in GSM Implementation of Mobile Measurement-based Frequency Planning in GSM Comp.Eng. Serkan Kayacan (*), Prof. Levent Toker (**) (*): Ege University, The Institute of Science, Computer Engineering, M.S. Student

More information

MOBILE FRONTHAUL FOR CLOUD-RAN DEPLOYMENT EFFICIENT USE OF OPTICAL INFRASTRUCTURE FOR REMOTE RADIO ARCHITECTURES APPLICATION NOTE

MOBILE FRONTHAUL FOR CLOUD-RAN DEPLOYMENT EFFICIENT USE OF OPTICAL INFRASTRUCTURE FOR REMOTE RADIO ARCHITECTURES APPLICATION NOTE MOBILE FRONTHAUL FOR CLOUD-RAN DEPLOYMENT EFFICIENT USE OF OPTICAL INFRASTRUCTURE FOR REMOTE RADIO ARCHITECTURES APPLICATION NOTE ABSTRACT In the current environment of continuing traffic growth driven

More information