LTE Coverage Design and Performance Verification

Document Scope ProposalTSB–88 For Public Safety LTE

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Proposal: release documents in phases◦ First release:

Basic LTE coverage modeling and verification concepts such as tile reliability, service area reliability, data rate channel performance criterion, etc.

High-level overview of additional key LTE concepts Significant benefit in defining these basic coverage

modeling and verification concepts e.g. industry conversations have revolved around

questions like “what is LTE coverage”, “what do you measure to validate LTE coverage”, etc.

Focusing on key concepts will accelerate document development and delivery

Document Development Approach

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Front matter◦ Forward, introduction, scope statement, and

references Definitions and abbreviations

◦ Key LTE coverage modeling definitions such as Data Rate Channel Performance Criterion (DRCPC), Tile Reliability, Covered Area Reliability, Service Area Reliability, etc.

LTE Coverage Modeling Document Scope

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LTE Technical Performance Definitions and Criteria◦ Scope for First Document Release

Service Area Data Rate Channel Performance Criterion (DRCPC) Contour Reliability Tile Reliability Tile-Based Area Reliability Subscriber Distribution Traffic Models and Loading

Need to relate model load to field validation load Resource Block Sharing

LTE Coverage Modeling Document Scope

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Front Matter◦ Forward, introduction, scope statement, and

referencesDefinitions and abbreviations◦ Key LTE coverage verification definitions such as

Data Rate Channel Performance Criterion (DRCPC), Number of Test Tiles, Tile-based Area Reliability, Validated Service Area Reliability, etc.

LTE Coverage VerificationDocument Scope

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Performance Confirmation◦ Validated Service/Covered Area Reliability◦ Determination of Number of Test Tiles (Outdoor

Only)◦ Estimate of Proportions◦ Pass/Fail Test Criteria

The “Greater Than” Test The “Acceptance Window” Test

◦ Confidence Level◦ Confidence Interval

LTE Coverage VerificationDocument Scope

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Size Constraints & Accessibility◦ Outdoor◦ Tunnel◦ Indoor◦ Accessibility

Treating Anomalous Tiles In-Building Recommendations LTE Coverage Acceptance Testing

◦ Traffic Load Emulation Procedures◦ Data Rate Measurement Procedures

LTE Coverage VerificationDocument Scope