Coexistence Digital TV and LTE

[xpto25]

Coexistence Digital TV and LTE

[MyVi78]

Do you have similar documents for GSM & LTE?

[xpto25]

Do you have similar documents for GSM & LTE?

No, unfortunately not.

[rkdrkd]

Coexistence Digital TV and LTE

more info please..contents or publisher

[labviewlover]

thanks for the share (thanks) added

please, can u share something about coexistence of (LTE and LTE) or (LTE with any other technologies)?



many thanks again

[labviewlover]

direct link, (free access document):

http://www2.rohde-schwarz.com/file_14100/1MA176_3e.pdf

[probabaja]

30113

BBC R&D
Results of DTT/LTE C/I Testing

Contents
•Review of “the LTE problem”
–LTE-800 Band Plan
•Background
•Results of Detailed Tests of 10 Receivers
–DTT C/I vs LTE traffic
–Level dependent C/I performance
•Results of DTG Zoo Tests
–Statistical analysis of results
•Performance Requirements

[probabaja]

30114

IRT, MEDIA BROADCAST
Protection ratio measurements for cognitive radio systems using LTE technology against DVB-T reception
Contents
0 Executive summary.......................................................................................................... 3
1 Introduction ....................................................................................................................... 4
2 Receivers ........................................................................................................................... 4
3 Wanted signals.................................................................................................................. 5
4 Unwanted signals ............................................................................................................. 5
4.1 LTE signal variants and timings .................................................................................. 6
4.2 Spectrum masks.......................................................................................................... 8
4.3 LTE levels .................................................................................................................. 10
5 Failure criteria ................................................................................................................. 12
6 Measurement setup........................................................................................................ 12
7 Measurement procedure................................................................................................ 13
8 Measurement result summary....................................................................................... 13
8.1 Dependency on the receiver ..................................................................................... 13
8.2 Dependency on the LTE signal variant and timing................................................... 15
9 Conclusions..................................................................................................................... 16
10 References................................................................................................................... 16
Annex 1: Measurement equipment
Annex 2: LTE signals
Annex 3: Detailed measurement results

[probabaja]

Study on maximum transmit power for TVWS devices and available amount of TVWS in Bavaria/Germany

0. Introduction.
1. Maximum Transmit Power for TVWS devices in the UHF bands.
2. Estimating the amount of available TVWS in Bavaria.
3. Conclusions.
4. References:
Annex 1: A note on FRANSY..
Annex 2: Procedure to calculate
Annex 3: Parameter from ECC Report 148
Annex 4: Assumptions
Annex 5: Comparison of spectrum occupation measurement in the Munich area with simulation results

30205

[probabaja]

Era Technology
Conducted Measurements to Quantify DVB-T Interference into DTT Receivers

Contents
1. Introduction 11
2. Objectives and Scope of Work 12
3. Measurement Methodology 13
3.1 Wanted System Parameters 13
3.2 Interfering System Parameters 15
3.2.1 Requirement for filtering 15
3.3 Interference Criteria 16
3.4 Test Procedure and Equipment Set-Up 18
4. Results 19
4.1 C/I Protection Ratios 20
4.2 Effect of Changing Wanted Signal Level 24
4.3 Effect of Changing Modulation Scheme 26
4.4 Effect of Changing Tuned Receiver Frequency 28
4.4.1 Investigation of N+5 anomaly 30
5. Conclusions 31
6. References 34
APPENDIX A C/I Protection Ratio Plots 35
APPENDIX B Test Equipment 45
B.1 Test Equipment List 45

30255

[probabaja]

ERA Technology Ltd
Conducted Measurements to Quantify Different Types of Interference in the DDR Frequency Spectrum

Contents
1. Introduction 15
2. Objectives and Scope of Work 16
3. Test Methodology 16
3.1 Common Parameters 16
3.2 Requirement for Filtering 18
3.3 UMTS User Equipment into DVB-T 20
3.4 DVB-T into UMTS User Equipment 30
3.5 UMTS Node B into DVB-T 35
3.6 DVB-T into UMTS Node B 38
3.7 Mobile WiMAX Mobile Station Interference into a DVB-T Receiver 41
3.8 Mobile WiMAX Base Station into a DVB-T Receiver 44
3.9 DVB-T Interference into Fixed WiMAX 46
3.10 DVB-T Interference into a DVB-H Handset 49
4. Results 52
4.1 UMTS User Equipment Interference into a DVB-T Receiver 52
4.2 DVB-T Interference into UMTS User Equipment 55
4.3 UMTS Node B Interference into a DVB-T Receiver 56
4.4 DVB-T Interference into a UMTS Node B 58
4.5 Mobile WiMAX Interference into a DVB-T Receiver 59
4.6 DVB-T Interference into a Fixed WiMAX System 61
4.7 DVB-T Interference into a DVB-H Handset 63
5. Summary and Conclusions 65
6. References 69
APPENDIX A: Test Equipment 71

30256

[probabaja]

Ofcom - Technical report
Technical analysis of interference from mobile network base stations in the 800MHz band to digital terrestrial television

Contents
1 Executive summary 3
2 Introduction 9
3 Background 10
4 Modelling the impact of interference 15
5 Parameters and assumptions 29
6 Analysis of mitigation measures 38
7 Categories of DTT receiver installations 73
8 Impact of interference on the DTT service in the UK: Standard domestic installations 78
9 Impact of interference on the DTT service in the UK: Communal aerial systems 90
10 Impact of interference on the DTT service in the UK: Domestic installations with amplifiers 97
11 Conclusions 104
Annex
1 Parameter values and definitions 106
2 Propagation model 110
3 Measurements of protection ratios: DTT receivers 121
4 Measurements of protection ratios: Communal aerial systems 131
5 Measurements of protection ratios: Domestic installations with amplifiers 138
6 Measurements of protection ratios: Discontinuous LTE signals 145
7 Partitioning of UK households across DTT channels 153
8 Detailed results of computer modelling 161

30346

[probabaja]

Ofcom - Securing long term benefits from scarce spectrum resources
A strategy for UHF bands IV and V

Contents
1 Executive summary 1
2 Purpose and scope of this consultation 8
3 Future mobile broadband spectrum requirements 15
4 Future DTT spectrum requirements 35
5 Other uses of UHF band IV and V 46
6 Securing long term benefits for citizens and consumers 51
7 The wider impacts of changing the use of the 700 MHz band 65
8 Proposed approach for securing future benefits and next steps 71
Annex
1 Responding to this consultation 75
2 Ofcom’s consultation principles 77
3 Consultation response cover sheet 78
4 Consultation questions 80
5 Summary of responses to the April 2011 Call for Input 83
6 Glossary of abbreviations 88

spectrum-condoc.pdf (http://tinyurl.com/astg9k3)

[probabaja]

Arqiva
700 MHz Clearance
Planning Options Based on Existing Usage

TABLE OF CONTENTS
1. SUMMARY......................................................................................................................... 4
2. INTRODUCTION................................................................................................................ 6
3. BACKGROUND ................................................................................................................. 7
4. INTERNATIONAL COORDINATION.................................................................................. 8
4.1. Overview......................................................................................................................... 8
4.2. Access to Spectrum........................................................................................................ 8
4.2.1. United Kingdom................................................................................... 10
4.2.2. France................................................................................................. 11
4.2.3. Belgium............................................................................................... 11
4.2.4. Luxembourg ........................................................................................ 12
4.2.5. The Netherlands.................................................................................. 12
4.2.6. Germany ............................................................................................. 13
4.2.7. Ireland ................................................................................................. 13
4.3. Coordination Summary ................................................................................................. 14
5. METHOD.......................................................................................................................... 15
6. SCENARIO 1 – 3PSB + 600 MHZ.................................................................................... 16
6.1. Coordination ................................................................................................................. 18
6.1.1. PSB Layer coordination ...................................................................... 18
6.1.2. 600 MHz coordination ......................................................................... 18
6.2. Coverage...................................................................................................................... 18
6.2.1. Baseline .............................................................................................. 19
6.2.2. Scenario 1........................................................................................... 19
6.3. Discussion .................................................................................................................... 19
7. SCENARIO 2 – 3PSB + 3COM........................................................................................ 20
7.1. Coordination ................................................................................................................. 23
7.1.1. PSB Layer coordination ...................................................................... 23
7.1.2. COM Layer coordination ..................................................................... 23
7.2. Coverage...................................................................................................................... 24
7.3. Discussion .................................................................................................................... 24
8. SCENARIO 3 – 3PSB + 3COM + 600 MHZ...................................................................... 25
8.1. Coordination ................................................................................................................. 27
8.1.1. PSB Layer coordination ...................................................................... 27
8.1.2. 600 MHz coordination ......................................................................... 27
8.1.3. COM layer coordination ...................................................................... 27
8.2. Coverage...................................................................................................................... 28
8.3. Discussion .................................................................................................................... 28
9. CONCLUSION ................................................................................................................. 28
ANNEX 1 : NETWORK COVERAGE BASED ON DVB-T........................................................ 30
ANNEX 2 : GLOSSARY OF ABBREVIATIONS....................................................................... 32

pdf (http://tinyurl.com/b4vvzum)

[probabaja]

Electronic Communications Committee (ECC)
MEASUREMENTS ON THE PERFORMANCE OF DVB-T RECEIVERS IN THE PRESENCE OF INTERFERENCE FROM THE MOBILE SERVICE (ESPECIALLY FROM LTE)
ECCRep148

Table of contents
0 EXECUTIVE SUMMARY .................................................................................................................................. 2
LIST OF ABBREVIATIONS ........................................................................................................................................ 4
1 INTRODUCTION ................................................................................................................................................ 5
2 USEFUL DEFINITIONS ..................................................................................................................................... 5
2.1 RADIO FREQUENCY SIGNAL-TO-INTERFERENCE RATIO (C/I) .......................................................................... 5
2.2 RADIO FREQUENCY PROTECTION RATIO (PR) ................................................................................................. 5
2.3 RECEIVER BLOCKING ..................................................................................................................................... 6
2.4 RECEIVER (FRONT-END) OVERLOADING THRESHOLD ..................................................................................... 6
2.5 “CAN” TUNERS .............................................................................................................................................. 6
2.6 “SILICON” TUNERS ......................................................................................................................................... 6
3 CRITERIA TO BE USED WHEN ASSESSING INTERFERENCE............................................................... 6
4 MEASUREMENTS .............................................................................................................................................. 7
4.1 BROADCASTING SERVICE PARAMETERS ......................................................................................................... 7
4.2 MOBILE SERVICE PARAMETERS ...................................................................................................................... 7
4.3 TEST PROCEDURE ........................................................................................................................................... 9
4.3.1 Measurements under static conditions ................................................................................................... 10
4.3.2 Time varying interference source signals ............................................................................................... 10
4.3.3 Measurements in a time variant Rayleigh transmission channel for the wanted DVB-T signal ............ 10
4.4 RECEIVER TYPES .......................................................................................................................................... 11
5 PROTECTION RATIOS ................................................................................................................................... 12
5.1 LTE BASE STATION INTERFERING SIGNAL ................................................................................................... 14
5.2 LTE USER EQUIPMENT INTERFERING SIGNAL .............................................................................................. 15
6 CONCLUSION ................................................................................................................................................... 16
ANNEX A: METHOD TO DERIVE THE RECEIVER OVERLOADING THRESHOLD ................................. 18
ANNEX B: SEQUENCES USED FOR MEASUREMENTS ON LTE USER EQUIPMENT SIGNALS ............ 23
ANNEX C: MEASUREMENT SET-UP .................................................................................................................... 26
ANNEX D: STATISTICS ON RECEIVERS ............................................................................................................. 27
ANNEX E: STUDIES ON POSSIBLE TECHNIQUES TO MITIGATE INTERFERENCE FROM LTE IN
THE DOMESTIC ENVIRONMENT ......................................................................................................................... 28
ANNEX F: INFLUENCE OF THE LTE SIGNAL BANDWIDTH ON THE PROTECTION RATIO ............... 29
ANNEX G: SOURCE DOCUMENTS OF PROTECTION RATIO MEASUREMENTS .................................... 31
ANNEX H: LIST OF REFERENCES ........................................................................................................................32

ECCRep148.pdf (http://tinyurl.com/a963kpa)

[probabaja]

ERA Technology Ltd
Assessment of LTE 800 MHz Base Station - Interference into DTT Receivers
Contents
1. Introduction 9
1.1 Background 9
1.2 Scope & Objectives 11
2. Test Set-Up 11
2.1 Receivers Under Test 11
2.2 Wanted Signal 12
2.3 Interfering Signal 14
2.4 Failure Criterion 19
2.5 Measurement Set-Up 20
2.6 Test Method 21
3. Results 22
3.1 Carrier-to-Interference Protection Ratios 23
3.2 Comparison between DVB-T and DVB-T2 Reception 29
3.3 Comparison between fully loaded and idle BS operation 30
3.4 Analysis of Results 31
3.4.1 Carrier-to-Interference Protection Ratios 31
3.4.2 DTT Transmission Mode 35
3.4.3 Base Station Operating Mode 35
4. Conclusions 36
5. References 37
Appendix A Carrier against Interference Results 39

32071

[probabaja]

COGEU: Guidelines for TVWS equipment certification and compliance - final
Table of Contents
1- Introduction .......................................................................................................... 6
2- Measurement results of interference by LTE secondary users ....................... 7
2.1- Measurement conditions .......................................................................................................... 8
2.1.1- Signal parameters and transmission channel ................................................................ 8
2.1.2- Failure criteria ................................................................................................................ 9
2.1.3- Interfering LTE signals ................................................................................................... 9
2.1.3.1 LTE-Base Station Signal ............................................................................................. 9
2.1.3.2 LTE-User Equipment Signal ......................................................................................10
2.2- Measurement Set-up .............................................................................................................. 12
2.3- Measurement Results ............................................................................................................ 13
2.3.1- PR for LTE-BS interferes to DVB-T ............................................................................. 13
2.3.2- PR for LTE-UE interferes to DVB-T ............................................................................. 16
2.4- Overloading threshold ............................................................................................................ 19
2.4.1- Overloading threshold for LTE-BS interferes to DVB-T ............................................... 19
2.4.2- Overloading threshold for LTE-UE interferes to DVB-T ............................................... 22
2.5- Threshold parameters for compliance measurements with reference receiver ..................... 24
3- Measurement results of interference by WiFi secondary users ..................... 26
3.1- Testbed 1 ............................................................................................................................... 26
3.1.1- Signal parameters and transmission channel .............................................................. 26
3.1.2- Failure criteria .............................................................................................................. 26
3.1.3- Interfering WiFi signal .................................................................................................. 26
3.1.4- Measurement set-up .................................................................................................... 27
3.1.5- Measurement results ................................................................................................... 27
3.1.6- Extension of test signal configuration .......................................................................... 28
3.1.7- Conclusion ................................................................................................................... 28
3.2- Testbed 2 ............................................................................................................................... 30
3.2.1- Experimental System Setup ........................................................................................ 30
3.2.2- Measured Parameters ................................................................................................. 31
3.2.3- Measurement scenarios .............................................................................................. 32
3.2.4- Gradually overlapping test scenario ............................................................................ 32
3.2.5- Co-channel Interference test scenario ......................................................................... 37
3.2.6- Conclusion ................................................................................................................... 43
4- Testing WSDs for interference by primary users ............................................ 44
4.1- Simplified test set-up for testing WSDs .................................................................................. 44
4.2- Definitions of interference signals .......................................................................................... 44
4.3- Failure criterion for quality of WSD signals ............................................................................ 45
5- Recommendations for a testbed for WSD certification................................... 46
5.1- Testbed for WSD certification: RF emission characteristics .................................................. 46
5.1.1- RF output power measurement ................................................................................... 47
5.1.2- Signal bandwidth.......................................................................................................... 48
5.1.3- Out-of-block power in the DVB-T channels up to N±3 ................................................. 48
5.1.4- Spurious emissions ...................................................................................................... 48
5.2- Testbed for WSD certification: control characteristics ........................................................... 49
6- Documentation of certification results ............................................................. 50
7- Conclusions ........................................................................................................ 51
8- References .......................................................................................................... 52
9- List of Tables ...................................................................................................... 53
10- List of Figures ............................................................................................ 54
11- List of Abbreviations ................................................................................. 56

32373 or pdf (http://tinyurl.com/c7kjxrq)

[probabaja]

ERA Technology Ltd
TV Distribution Amplifier Performance when Interfered with by LTE Base Station and Subsequent Mitigation Filter Testing
Table of Contents
1. Introduction 11
2. Test Set-Up 12
2.1 Amplifiers under Test 12
2.2 DTT Receivers 14
2.3 Mitigation Filters 14
2.4 Wanted Signal 17
2.5 Interfering Signal 18
2.6 Failure Criterion 22
3. Results 25
3.1 Summary of Results for Receiver 1 26
3.2 Summary of Results for Receiver 2 29
3.3 Analysis of Results 32
4. Conclusions 34
5. References 36
Appendix A : Measured Amplifier Characteristics 37
Appendix B : DTT Receiver Performance 44
Appendix C : Amplifier C/I Protection Ratio Curves 47
Appendix D : CCDF Curves of Idle and Fully Loaded LTE Signals 60

32657 or pdf (http://tinyurl.com/cz27w2m)

[probabaja]

Ofcom - Aegis
The co-existence of LTE and DTT services at UHF: a field trial
Table of Contents
1 INTRODUCTION ................ 4
2 THE VULNERABILITY OF DVB-T RECEIVERS TO LTE TRANSMISSIONS............... 5
3 TAMWORTH FIELD TRIALS .............. 9
4 IMPACT OF LTE ON DTT ............... 22
5 PROPAGATION MEASUREMENTS ..... 33
6 MITIGATION—FILTERING ............... 41
7 MITIGATION—ON CHANNEL REPEATER ........ 47
8 MITIGATION—POLARISATION DISCRIMINATION........... 50
9 PRE-AMPLIFIER OVERLOAD ............ 54
10 CONCLUSIONS ................. 55
A GLOSSARY ......... 57
B REFERENCES .................. 58
C ON-CHANNEL REPEATER ISSUES .... 59
D RECEIVE ANTENNAS USED IN THE FIELD TRIAL ........... 97
E FILTER TESTING—ADDITIONAL SPECTRAL PLOTS ...... 99

pdf (http://tinyurl.com/cyfqqtz)

[probabaja]

Atdi: LTE planning challenges: The coexistence LTE<=>DVB-T
LTE forum, Warsaw
pdf (pps) (http://tinyurl.com/ocbmwde)

[probabaja]

ITU-R BT 2033
Planning criteria, including protection ratios, for second generation of digital terrestrial television broadcasting systems in the VHF/UHF bands

CONTENTS
Annex 1 (Normative) – Planning criteria, including protection ratios, for DVB second
generation digital terrestrial television systems in the VHF/UHF bands ....................... 5
1 Protection ratios for DVB-T2 wanted digital terrestrial television signals .................... 5
1.1 Wanted signal configuration ............................................................................... 5
1.2 Characteristics of the LTE interfering signal ...................................................... 6
1.3 Notes applying to protection ratio and overload threshold tables ...................... 6
1.4 Protection of a DVB-T2 digital terrestrial television signal interfered with by a DVB-T2 digital terrestrial television signal ................................................ 7
1.5 Protection ratios and overload thresholds for DVB-T2 interfered with by LTE base station and user equipment signals ..................................................... 8
1.5.1 Protection of a DVB-T2 digital terrestrial television signalinterfered with by a LTE-BS signal ..................................................... 9
1.5.2 Protection of a DVB-T2 digital terrestrial television signalinterfered with by a LTE-UE signal ..................................................... 10
1.6 Correction factors for different wanted DVB-T2 system variants and different reception conditions ............................................................................. 14
1.7 Selection of PR and Oth for sharing studies ........................................................ 15
1.8 Effect of transient interference on protection ratios ........................................... 15
2 Minimum field strengths for DVB-T2 terrestrial digital television ............................... 16
3 References ...................................................................................................................... 19
Appendix 1 to Annex 1 – Calculation of minimum field strength and minimum median equivalent field strength ................................................................................................. 19
Appendix 2 to Annex 1 – Can tuner test results ...................................................................... 20
Appendix 3 to Annex 1 – Effect of transient interference on protection ratios ....................... 24
1 Background ..................................................................................................................... 24
2 Measurements ................................................................................................................. 25
2.1 Signal sources ..................................................................................................... 25
2.2 Frequency offsets ................................................................................................ 26
2.3 Measurement procedure ...................................................................................... 26
2.4 Receivers tested .................................................................................................. 27
3 Results ............................................................................................................................ 27
4 Conclusions .................................................................................................................... 30
Appendix 4 to Annex 1 – TV tuner technologies and characteristics ...................................... 31
Annex 2 (informative) – Additional test results ....................................................................... 31
1 Additional test result from the UK ................................................................................. 31
2 Additional test result from the Russian Federation ........................................................ 32
Annex 3 (normative) Other planning factors ......................................................................... 32
1 Field strength distribution with location ......................................................................... 32
2 Reception using portable equipment inside buildings and vehicles ............................... 33
2.1 Height loss: Lh .................................................................................................... 33
2.2 Building entry loss: Lb ........................................................................................ 33
2.3 Vehicle entry loss: Lv .......................................................................................... 34
3 Receiving antenna discrimination .................................................................................. 34
4 Antennas for portable and mobile receivers ................................................................... 34
4.1 Antennas for portable reception .......................................................................... 34
4.2 Antennas for hand-held reception ....................................................................... 35
4.3 Antennas for mobile reception ............................................................................ 35
5 Man-Made Noise (MMN) .............................................................................................. 36
Annex 4 (informative) – Failure point assessment methods ................................................... 37
1 Subjective failure point (SFP) method for protection ratio measurements .................... 37
Annex 5 (normative) – Tropospheric and continuous interference ........................................ 37
1 Tropospheric and continuous interference ..................................................................... 37

pdf (http://tinyurl.com/mua6led)

[probabaja]

ATDI WP: LTE & TELEVISION SERVICES COEXISTENCE REPORT FOR BRAZIL

[probabaja]

Instituto Superior Técnico – Universidade de Lisboa, ANACOM – Autoridade Nacional de Telecomunicações, Portugal
COMPATIBILITY STUDY BETWEEN LTE MOBILE RADIO SYSTEM AND SYSTEMS IN ADJACENT BANDS
pdf (http://tinyurl.com/q3orsma)

[probabaja]

DotEcon ltd: 800MHz auction: Co-existence of LTE systems in 790-862 MHz with Digital Terrestrial Television
Contents
1 Introduction 10
1.1 Structure of this document 13
2 Overview of approach and main assumptions 14
2.1 Approach taken 14
2.2 Main assumptions 15
2.3 DTT coverage and frequency plan 17
2.4 LTE network assumptions 27
3 Analysis of LTE networks operating at maximum power levels 30
3.1 Summary of results 30
3.2 Effect of interference on indoor coverage of DTT 35
3.3 Conclusions from the initial analysis 35
3.4 Observations on relevance of the initial analysis to real LTE deployments 37
4 Impact of interference assuming realistic LTE deployment assumptions 39
4.1 Determination of individual EIRP levels 39
4.2 Impact of realistic EIRP levels on potential for receiver overload 47
4.3 Composite overload effect from three networks 51
4.4 Impact of using realistic EIRP levels on the potential for ACI 52
4.5 Impact of realistic EIRP levels on ACI in DTT Channel 60 areas 61
4.6 Effect on indoor coverage 70
4.7 Effect of site sharing between the three networks 74
4.8 Near-field interference effects 74
4.9 Summary of results 75
5 Evaluation of possible mitigation measures 79
5.1 Use of DTT receiver filters 79
5.2 Mitigation via additional filtering on LTE base stations 82
5.3 Use of cross-polarisation between LTE and DTT 83
5.4 Improving the DTT signal level via on-channel repeaters 84
5.5 Mitigation via improving DTT receiver design 85
5.6 Platform change 87
5.7 Other forms of mitigation 88
6 Interference from LTE uplink emissions 89
7 Conclusions and recommendations 91
7.1 Summary of the main interference issues 91
7.2 Conclusions on the suitability of different mitigation techniques 92
7.3 Recommendations 94
Annex A Blocking results by geo-type within Danish broadcast regions (initial analysis) 96
Annex B : DTT site characteristics for Channels 60, 59 and 58 in Denmark 98
Annex C : Maps showing areas of interference (initial analysis) 99
Annex D : LTE link budget 104
Annex E : Summary of modelling steps 106

pdf (http://tinyurl.com/od96zw6)

[probabaja]

CEPT ECC: Agenda item 1.2: UE OOB emissions: the impact of -25 dBm/8MHz
This study shows the impact of establishing LTE UE OOB emission limit for frequencies below 694 MHz as -25 dBm/8 MHz. MCL and statistical analysis show that the UE OOB level of -25 dBm/8 MHz may seriously degrade the performance of DTT reception. From the analysis performed in CEPT Report 30, the level of -50 dBm/8 MHz seems to be the most appropriate.
doc (http://tinyurl.com/one969n)

[probabaja]

ICT KNOWLEDGE TRANSFER NETWORK:
800MHz Interference and co-existence challenges – Interim report

1 Contents
1 Contents ................................................................................................................ 2
2 Abbreviations and definitions ................................................................................. 4
3 Introduction ............................................................................................................ 6
3.1 Purpose of this paper ............................................................................................ 7
4 Executive summary ............................................................................................... 8
5 Background (Spectrum)....................................................................................... 10
5.1 800MHz compatibility issues ............................................................................... 12
6 Digital Television services ................................................................................... 14
6.1 DTT Receiver Selectivity Characteristics............................................................. 15
6.2 LTE-800 Interference into Digital Television (DTT) ............................................. 17
6.2.1 LTE-800 BS Interference into DTT Ch60 – N+1 offset .................................. 17
6.2.2 LTE-800 UE Interference into DTT– N+9 offset ............................................ 17
6.2.3 Interference resulting from „out of band‟ emissions ....................................... 18
6.3 Interference Discussion – Possible solutions ................................................ 20
6.3.1 On-Channel Repeaters ................................................................................. 21
6.3.2 DTT & Cellular Cooperative Network Evolution Proposal ............................. 22
6.3.3 Shared DTT Broadcast and Cellular Topology.............................................. 23
6.4 Recommended DTT tests for trial test bed .......................................................... 25
7 Hybrid Fibre Cable (HFC) Networks .................................................................... 26
7.1 800MHz spectrum usage and impact to Cable & STB industry ........................... 26
7.2 LTE Interference into Cable and DVB-C/DOCSIS CPE....................................... 27
7.2.1 Set Top Box - LTE Interference testing ......................................................... 27
7.2.2 Cable Modem – LTE Interference Testing .................................................... 30
7.2.3 In- Home Cabling – LTE Interference Testing ............................................... 30
7.2.4 Summary of LTE Interference with Cable systems ....................................... 31
7.3 Cable Interference - Possible mitigation and solutions ........................................ 32
7.3.1 Restrict cable transmissions to below 790 MHz. ........................................... 32
7.3.2 Reduce QAM rates to make the system more robust: .................................. 32
7.3.3 Increase HFC signal level ............................................................................. 33
7.3.4 Increase immunity of CPE ............................................................................ 33
7.3.5 Home Cabling improvements ........................................................................ 33
7.3.6 Pilot Tone ...................................................................................................... 33
7.4 Cable Summary ................................................................................................... 33
7.5 Recommended Cable and DVB-C/DOCSIS CPE tests for trial test bed.............. 34
7.5.1 Interference scenarios .................................................................................. 34
7.5.2 Testing Procedure ......................................................................................... 34
8 Communal Antenna Systems .............................................................................. 35
8.1 Communal Antennas – Systems and Topologies ................................................ 35
8.2 Communal Antenna Interference Issues ............................................................. 37
8.3 Communal Antenna Customer base ................................................................... 37
8.4 Communal Antenna Interference Assessment .................................................... 38
8.5 Innovation to solve the problems ......................................................................... 38
8.6 Recommended Communal Antenna tests for trial test bed ................................. 39
9 Applications above 862 MHz - Short Range Devices .......................................... 40
9.1 863MHz-865MHz testing (Copsey Communications) .......................................... 41
9.2 863MHz – 865MHz test set up and results .......................................................... 42
9.3 863MHz-865MHz test conclusions ...................................................................... 45
9.4 Recommended tests for trial test bed .................................................................. 45
10 PMSE 470-790MHz ............................................................................................. 47
10.1 PMSE Interference .............................................................................................. 47
10.2 Recommended PMSE tests for trial test bed ....................................................... 48
11 Conclusions and recommendations .................................................................... 48

pdf (http://tinyurl.com/p3ym9fy)

[probabaja]

IEEE Protection Ratio and Antenna Separation for DVB–T/LTE Coexistence Issues
This paper concerns the analysis of adjacent channel interference of the 3GPP Long Term Evolution (LTE) E–UTRA (Evolved Universal Terrestrial Radio Access) mobile systems into Digital Video Broadcasting – Terrestrial (DVB–T) systems. The simulated performance of both systems allows us to define recommendations for minimizing the interference effects. The subjective quality of the received TV signal has been evaluated experimentally in terms of picture failure (PF). We also investigated the importance of the selection of suitable Spectral Emission Masks (SEMs) of the LTE downlink transmission. Results show that, by using the ECC 148 SEM, both the protection ratio and the minimum distance between LTE towers and DVB–T receivers can be significantly decreased.

pdf (http://tinyurl.com/pz64a49)

[probabaja]

LTE800-DTT Consumer Filter (Indoor) Requirements Specification for Digital Mobile Spectrum Ltd (DMSL)
This document sets out the technical requirements from Digital Mobile Spectrum Ltd (DMSL) for a Consumer LTE800-DTT filter (‘TV filter’) for deployment in an indoor household environment.

pdf (http://tinyurl.com/nsmqcm7)

[probabaja]

OFCOM: TV white spaces: approach to coexistence, Technical analysis
Contents
1 Introduction 1
2 Background 2
3 TVWS calculations 12
4 WSD emission limits in relation to DTT 21
5 WSD emission limits in relation to PMSE 58
6 WSD emission limits in relation to mobile services above the UHF TV band 90
7 WSD emission limits in relation to services below the UHF TV band 96
8 WSD emission limits in relation to cross border issues 104
Annex
1 Algorithm for calculation of WSD emission limits in relation to DTT 110
2 Propagation models, height and clutter 112
3 Calculation of the coverage area of a master WSD 116
4 WSD-DTT protection ratios 119
5 WSD-PMSE protection ratios 153

pdf (http://tinyurl.com/om393wf)

[probabaja]

Progira: DVB-T2/LTE Interference Challenges at UHF

Content of presentation

1. 800 MHz LTE Downlink interference examples

- LTE Base Station interference DVB-T/T2

2. The 700 MHz Uplink interference example

- LTE Terminals (UE) interference ->DVB-T/T2

3. What about 470-698 MHz sharing?

-DVB-T/T2 interference -> LTE uplink

4. Mobile services vs. DTT in 700 MHz band

pdf (http://tinyurl.com/q5u2su3)

[probabaja]

CEPT LTE band 28 UE emissions to DTT frequencies

Contents:
1 Introduction
2 LTE band 28 UE transmitter characteristics
3 Effect of LTE uplink channel bandwidth and DTT channel number
4 Effect of LTE uplink resource allocation within the channel
5 Effect of LTE uplink power control
6 Conclusion

doc (http://tinyurl.com/nn7y54t)

[probabaja]

CEPT ECC - Simulation results on the potential interference from LTE UL to DTT channels according to LTE channel bandwidth and RB allocation
This document presents simulation results where the probability of LTE UL causing interference to DTT channels is assessed according to:
- Environment: urban, suburban, rural scenario.
- Characteristics of the DTT receiver: ACS, location within the coverage area, DTT channel.
- Characteristics of LTE network: number of LTE UEs, OOB emission level, RB allocation.

Contents:
1.Introduction
2. Simulation methodology and parameters
3. Taking into account LTE channel bandwidth and partial bandwidth allocation effects on the OOB emission levels
4. Simulation results
4.1. IP evaluation in the DTT coverage edge
4.2. IP evaluation inside the DTT coverage area
5. Conclusions

doc (http://tinyurl.com/objqnps)

[probabaja]

CEPT Report 30
The identification of common and minimal (least restrictive) technical conditions for 790 - 862 MHz for the digital dividend in the European Union

pdf (http://tinyurl.com/q3ytrdp)

[probabaja]

LS Telcom -
DVB-T2 planning & issues with LTE/DTT interference prediction as a consequence of DSO

pdf (http://tinyurl.com/o79bo2f)