1、 TSB-88.4 December 2016Wireless Communications Systems Performance in Noise and Interference Limited Situations Part 4: Recommended Methods for Technology- Independent Broadband Performance Modeling NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through e
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20、 NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TSB-88.4 i TABLE OF CONTENTS FOREWORD iv INTRODUCTION vi 1. Scope 1 1.1. The TSB-88 Series 1 1.2. TSB-88.4 . 3 2. References 4 3. Defintions and Abreviations . 5 3.1. Definitions 5 3.2. Abbreviations . 12 3.3. Trademarked Names . 14 4. Test Methods
21、. 15 5. Wireless System Technical Performance Definitions And Criteria . 15 5.1. Service Area 15 5.2. Data Rate Channel Performance Criterion (DRCPC) 15 5.3. DRCPC Reliability 16 5.3.1. DRCPC Reliability Design Targets 16 5.4. Reference Sensitivity . 17 5.5. Device Parametric Values 17 6. Wireless s
22、ystem Performance Modeling Methodology 20 6.1. Propagation and Signal Strength Modeling . 21 6.1.1. LTE Measurements . 22 6.2. Traffic Modeling . 25 6.2.1. Data Application Modeling 25 6.2.2. Subscriber Location 25 6.2.3. Uniform Resource Utilization Modeling . 25 6.3. Broadband Data Transmission Mo
23、deling . 26 6.3.1. Carrier Bandwidth . 26 6.3.2. MIMO Transmission 26 6.3.3. Receiver Signal Combining . 28 6.3.4. Resource Scheduler 28 6.3.5. Uplink Power Control 29 6.3.6. SINR Calculation . 29 6.3.7. Modulation and Coding Rate Adaptation . 31 6.3.8. Control Channel Modeling . 31 6.3.9. Interfere
24、nce Coordination 32 6.3.10. Link Curve Modeling . 33 6.3.11. Cell Selection 34 6.3.12. Carrier Aggregation . 34 6.4. Broadband Coverage Modeling . 34 6.4.1. Tile Reliability 34 6.4.2. Area Reliability 36 7. System Modeling . 36 TSB-88.4 ii 7.1. Terrestrial System Modeling . 36 7.1.1. Propagation Mod
25、els . 36 7.1.2. Antenna models 36 7.1.3. Link performance models 37 7.2. Air-Ground-Air System Modeling 37 7.2.1. Propagation Models . 37 7.2.2. Antenna models 38 7.2.3. Link performance models 39 7.2.4. Interference Considerations 39 7.2.5. Spectrum Allocation . 39 7.2.6. Deployable Aerial Communic
26、ations Architecture (DACA) . 40 7.3. Building Penetration into High Rises 40 8. Interference Analysis Methods . 40 8.1. Co-Channel 42 8.2. Adjacent Channel . 42 9. Bibliography . 44 ANNEX - A Communications Protocol Overheads 48 ANNEX - B LTE Link Budget Examples 56 ANNEX - C LTE Link Curve Examples
27、 . 70 TABLE OF FIGURES Figure 1 Broadband Model Flowchart . 21 Figure 2 An LTE Resource Block (RB) . 23 Figure 3 Sample AGA Pathloss Curves . 38 Figure A1 OSI Model Packet Encapsulation 49 Figure A2 Example Application Layer Packet Efficiencies . 53 Figure A3 Example Internet Packet Size Distributio
28、n 54 Figure C1 Example LTE Link Curves . 71 TABLE OF TABLES Table 1 Device Parameters 18 Table 2 Example Mapping Between RF Conditions and LTE Measurements . 25 Table A1 OSI Layers and Attributes . 48 Table A2 IPv4 Packet Overhead Calculation . 52 Table A3 IPv6 Packet Overhead Calculation . 52 Table
29、 B1 Link Budget Use Cases. 57 Table B2 Downlink Link Budget Parameters 58 Table B3 Uplink Link Budget Parameters 60 Table B4 Example 1 DL Link Budget for 31dBm Vehicular Modem . 61 Table B5 Example 1 UL Link Budget for 31dBm Vehicular Modem . 62 Table B6 Example 2 DL Link Budget for 23dBm Vehicular
30、Modem . 63 Table B7 Example 2 UL Link Budget for 23dBm Vehicular Modem 64 Table B8 Example 3 DL Link Budget for Handheld on the Street . 65 Table B9 Example 3 UL Link Budget for Handheld on the Street . 66 Table B10 Example 4 DL Link Budget for Handheld in-Building . 67 Table B11 Example 4 UL Link B
31、udget for Handheld in-Building . 68 Table C1 Example LTE Scheduler Configurations . 70 TSB-88.4 iii DOCUMENT REVISION HISTORY Version Date Description TSB-88.4 August 11, 2016 Original Release TSB-88.4 iv FOREWORD (This foreword is not part of this bulletin.) Working Group WG-8.18.4 prepared this do
32、cument. Subcommittee TR-8.18 of TIA Committee TR-8 approved this document. Changes in technology to support the public safety nationwide broadband network, plus increased reporting of interference have recently occurred. These events support keeping this document current and that it provide the meth
33、odology of modeling the various interference mechanisms to support frequency coordinators in determining the best assignments to be made for the available pool of frequencies and mixtures of technology. This document, Wireless Communications Systems - Performance in Noise-and Interference-Limited Si
34、tuations -Part 4: Recommended Methods for Technology Independent Broadband Performance Modeling includes 3 informative Annexes A through C. This is the original release of Part 4 of this Bulletin. Other parts of this Bulletin are titled as follows: Part 1: Recommended Methods for Technology Independ
35、ent Performance Modeling Part 2: Propagation and Noise Part 3: Performance Methods for Technology Independent Performance Verification Part 5: Recommended Methods for Technology Independent Broadband Performance Verification TSB-88.4 v Patent Identification The readers attention is called to the pos
36、sibility that using this document might necessitate the use of one or more inventions covered by patent rights. By publication of this document no position is taken with respect to the validity of those claims or any patent rights in connection therewith. The patent holders so far identified are bel
37、ieved to have filed statements of willingness to grant licenses under those rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such licenses. The following patent holders and patents have been identified in accordance with the TIA intellectual property r
38、ights policy: None identified TIA is not responsible for identifying patents for which licenses might be referenced by this document or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. TSB-88.4 vi INTRODUCTION The TSB-88 series of document
39、s is intended to address the following issues: Addressing migration and spectrum management issues involved in the transition either to narrowband/bandwidth efficient digital and analog technologies or to broadband technologies. Provide information on new and emerging Land Mobile bands; Assessing an
40、d quantifying the interference impact between narrowband technologies and broadband technologies; Address the methodology of minimizing system interference between current or proposed Noise Limited Systems in spectral and spatial proximity to current or proposed Interference Limited Systems; Assessi
41、ng and quantifying the impact of new narrowband/bandwidth efficient digital and analog technologies on existing analog and digital technologies; Address the methodology to minimize inter-system interference between systems at national boundaries; Accommodating the design and frequency coordination o
42、f bandwidth-efficient narrowband technologies likely to be deployed as a result of the Federal Communications Commission “Spectrum Refarming” efforts; and Accommodating the design and frequency coordination of broadband technologies to be deployed in support of FirstNets nationwide interoperable bro
43、adband public safety network; The TSB-88 series of documents was prepared partially in response to specific requests from three particular user organizations: the Association of Public Safety Communications Officials, International (APCO), the Land Mobile Communications Council (LMCC) and the Nation
44、al Coordination Committee (NCC). In 2003, the National Public Safety Telecommunications Council (NPSTC) assumed the responsibilities of NCC.1This document, TSB-88.4, is intended to address performance modeling and the parametric values used to accomplish that modeling within the context described ab
45、ove. 1NPSTCs Broadband Requirements Report “Defining Public Safety Grade Systems and Facilities” describes best practices for coverage modeling based on recommendations from TSB-88 NPSTC 14. TSB-88.4 1 Wireless Communications Systems - Performance in Noise and Interference-Limited Situations Part 4:
46、 Recommended Methods for Broadband Performance Modeling 1. SCOPE 1.1. The TSB-88 Series The TSB-88 series of bulletins gives guidance on the following areas: Establishment of standardized methodology for modeling and simulating either narrowband/bandwidth efficient technologies or broadband technolo
47、gies; Establishment of a standardized methodology for empirically confirming the performance of either narrowband/bandwidth efficient systems or broadband systems; Aggregating the modeling, simulation and empirical performance verification reports into a unified “Spectrum Management Tool Kit” which
48、can be employed by frequency coordinators, systems engineers, software developers, and system operators; Recommended datasets that are available for improved results from modeling and simulation; and Providing current information for new and emerging bands. The purpose of these documents is to defin
49、e and advance a scientifically sound standardized methodology for addressing technology compatibility. This document provides formal structure and quantitative technical parameters from which automated design and spectrum management tools can be developed based on proposed configurations that can temporarily exist during a migration process or for longer term solutions for systems that have different technologies. As wireless communications systems evolve, the complexity in determining compatibility betwe
