System Design Reference Package.pdf

SYSTEM DESIGN REFERENCE – IN-BUILDING CELLULAR COVERAGE – MCRC BROOKLYN, NY

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SYSTEM DESIGN – REFERENCE PACKAGE

IN-BUILDING CELLULAR COVERAGE ENHANCEMENT SYSTEM

MCRC Brooklyn, NY Reserve Center – 6th Communication Battalion

Purpose: This reference package documents one validated technical solution for achieving the required in-building cellular coverage, derived from an on-site RF survey of the facility. It is provided for Government planning and source-selection reference. Component types and quantities reflect one acceptable, surveyed design; final quantities and locations for any awarded effort shall be confirmed by a site survey. This package contains no proprietary vendor identification.

1. System Overview

The system is a multi-band in-building cellular coverage enhancement solution (Distributed Antenna System / signal booster architecture) supporting AT&T, Verizon, and T-Mobile, including Low-Band 5G (approximately 600 MHz–1 GHz). Three (3) roof/parapet donor antennas receive the commercial carrier signal and feed a centralized network/head-end unit located in the 2nd Floor Telecom Room (Room 213). The head-end distributes to six (6) coverage units across the 1st and 2nd floors, which in turn feed twenty-four (24) interior broadcast (ceiling-dome) antennas. The design targets 90% coverage at RSRP −100 dBm or better.

2. System Block Diagram (One-Line)

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3. Major Equipment Summary

Qty Component / Function Location Notes

3 Donor antenna – high-isolation patch, 698–2700 MHz Roof / parapet Mast/wall mount; combined to head-end

1 Donor combiner / 2-way splitter Roof / IT room Combines donor feeds

1 Network / head-end unit (quad-band digital repeater / network unit) Telecom Rm 213 (2nd Flr)

Dedicated 110V circuit;

carrier + FCC registered

6 Coverage units (CU) – distributed amplification 1st & 2nd floors

Fed from NU via duplex Cat6 (2 per CU)

24 Interior broadcast antennas (ceiling dome) 1st & 2nd floors

~15 ft+ radius each; marked locations

As req. Splitters, couplers, 1×2 coax, connectors, mounting hardware Throughout Per coverage-unit detail (Section 4)

— Donor coax (1/2" OSP), Cat6 data backbone, fiber link extender (as required) Riser / pathways

J-hook supported to max 14' ceiling

Carrier bands supported: AT&T, Verizon, T-Mobile (incl. Low-Band 5G, ~600 MHz–1 GHz, DSS). Registration required with each carrier and with the equipment manufacturer per 47 CFR Part 20.21.

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4. Coverage Unit Component Breakdown

Coverage Unit Floor Splitters Couplers 1×2 Coax cables Broadcast antennas CU-1 1st Floor 3 — 5 4 CU-2 1st Floor 3 — 5 4 CU-3 1st Floor 1 2 6 4 CU-4 1st Floor 1 2 6 4 CU-5 2nd Floor 3 — 5 4 CU-6 2nd Floor 3 — 5 4

TOTAL — 14 4 32 24

Each coverage unit is mounted above the ceiling at a marked location and connected to the network/head-end unit by duplex Cat6 (two cables per unit). Quantities reflect one surveyed design and are subject to confirmation by site survey.

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5. Mounting & Installation Details

6. Installation Notes & Assumptions

Donor antennas: Mounted to roof/parapet via mast and heavy wall mounts; coax routed through a NEMA enclosure at the wall penetration to the head-end. Penetrations sleeved and fire-stopped after completion; grounding provided per code at each location.

Head-end / amplifier locations: Suitable space and a standard 110V duplex receptacle are required at each amplifier/head-end location (Government-furnished). Completed pathway from roof donor antennas to the head-end is assumed available.

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Interior antennas / pathways: Cable routed above accessible ceilings on J-hook supports to a maximum 14' ceiling height; work areas assumed accessible via ladders (no scissor-lift/lift rental included). Suitable ceiling pathways assumed to all interior antenna locations.

Registration (FCC): System registered with the equipment manufacturer and with each cellular carrier prior to or concurrent with activation, per 47 CFR Part 20.21.

Remote management: Any remote-management capability is to be managed/regulated by a Government employee or military member within the unit’s communications (G-6/S-6) element, consistent with Government IT/cybersecurity requirements.

Site survey required: Final equipment types, quantities, and component locations shall be determined by a physical site survey and confirmed in writing with the COR prior to installation. The quantities shown represent one validated, surveyed solution and are not mandatory minimums for an “or equal” approach.

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7. As-Surveyed Engineering Drawings

The following drawings were produced from a physical RF survey of the facility and depict equipment placement and predicted coverage on the actual building floor plans. They are reproduced here for Government reference with all vendor identification removed. Coverage predictions reflect the surveyed design; an awarded contractor shall confirm final placement and verify coverage by post-installation survey.

Each drawing is presented on its own page for legibility.

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7.1 Roof Plan – Donor Antenna Location

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7.2 First Floor – Equipment Layout

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7.3 First Floor – Predicted RF Coverage (Heat Map)

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7.4 Second Floor – Equipment Layout

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7.5 Second Floor – Predicted RF Coverage (Heat Map)

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7.6 As-Surveyed System Schematic (Detailed)

Detailed as-surveyed schematic showing donor antennas (roof), the network/head-end unit, and coverage-unit distribution across both levels. See the simplified one-line in Section 2 for a readable summary.