Halliburton North Belt Campus: Multi-Carrier DAS Across Eight Facilities

Halliburton is one of the world's largest providers of products and services to the energy industry. Its North Belt campus in north Houston includes:

• the Administration Building
• the Technology Center
• the Life Center
• the Shipping and Receiving warehouse
• the J-Complex, a connected group of buildings J through P
• Halliburton Plaza 1 and Plaza 2
• a parking garage used by the executive team

About 1,700 people work on campus every day, most of them on personal devices. That made reliable coverage from all three major carriers a baseline requirement. Halliburton's IT team led the project and wanted a vendor-neutral, carrier-agnostic partner to own it from survey through long-term support.

The campus depended on three legacy DAS systems installed years earlier. Two had reached end of life, with replacement parts and support no longer available, and one had lost its headend to a fire. The single system still running carried AT&T only, and it went down whenever the building lost power, so it needed a manual restart to come back online. Verizon and T-Mobile users had no in-building system at all.

The executive floor of the Administration Building had never been covered. Employees and leadership were relying on Wi-Fi calling to stay reachable. Halliburton needed one system that would restore dependable voice and data for all three carriers across the entire campus.

The new system had to replace a working one without leaving users stranded. AT&T users still depended on the last legacy system, so the cutover plan kept it in service until the new signal sources were live and ready to take over.

Carrier requirements shaped the design as much as the buildings did. AT&T required a three-sector design to manage capacity across a campus of this size. Each carrier ran its own engineering review and signal source approval on its own timeline. Halliburton set a firm standard of carrier-grade signal sources only, which ruled out off-air repeaters even as a temporary measure. Parts of the campus also had a strong outdoor Verizon signal, and meeting that carrier's required 8 dB indoor dominance meant placing additional antennas in those areas.

The buildings themselves varied widely. Tall storage racks in the Shipping and Receiving warehouse block signal from ceiling level. The executive half of the Administration Building's fourth floor called for low-profile antennas. Survey work had to be scheduled around active lab spaces and after-hours access to executive areas.

RSRF ran a multi-day site audit across the campus in November 2025, combining a full signal survey with a construction survey. The team confirmed:

• rack space, riser paths, and cable routes in every building
• existing single-mode fiber between buildings that the new system could use

From that data, RSRF's engineers built an iBwave design for a three-sector active fiber DAS. They evaluated several platforms and selected ADRF for three reasons:

• Fewer remotes. Its higher-output mid-power remotes cut the number of remote units the campus required.
• Upgradability. Its modular slot-card architecture lets new carriers or frequency bands, such as C-band 5G, be added with a card rather than a new system.
• Carrier flexibility. It accepts signal from any carrier's base station.

The final design uses a centralized headend in the J-Complex feeding 27 remotes across the campus over the existing fiber. The antenna strategy matched each space:

• dome antennas at 9 feet in office areas
• high-power panel antennas mounted at 20 feet in the warehouse to project signal over the storage racks
• low-profile antennas on the executive floor

The design targets a minimum of -95 dBm RSRP across 95% of the coverage area for each carrier, supporting LTE and 5G NR.

RSRF coordinated signal sources with all three carriers in parallel and submitted design packages to each carrier's engineering team for approval. The team scoped power for the headend and every IDF remote location so the system could run on the campus's backup power. It also installed new conduit for cabling in the executive parking garage.

The system is monitored under RSRF's SignalGuard Plus plan, which includes:

• 24/7 NOC monitoring
• on-site network probes that test each carrier's performance from the user's perspective
• annual walk-test site visits

Halliburton's North Belt campus now runs on one multi-carrier DAS in place of three aging legacy systems. AT&T, Verizon, and T-Mobile coverage reaches all eight facilities from a single headend, including the executive floor that previously depended on Wi-Fi calling. RSRF's NOC watches the system around the clock, and the probes flag performance changes before users notice them. The modular platform gives Halliburton a clear upgrade path as carriers add new bands and 5G capacity.