📻 CBRS (3.5 GHz)

Private LTE / 5G with Local Control, QoS & Auditable Security

CBRS — Citizens Broadband Radio Service (3.55–3.7 GHz, US) enables private LTE / 5G on your own spectrum slice with local coverage, deterministic QoS, SIM-based security, and cost control.
SolveForce designs CBRS networks end-to-end—RF planning, SAS coordination, EPC/5GC core, SIM/eSIM lifecycle, backhaul, security, and observability—so you get carrier-grade mobility on premises with evidence for audits.

Where this fits:
📡 Private RAN → Private LTE / 5G • 🌐 Access → Fixed Wireless • 📶 Mobile WAN → Mobile Connectivity
🔀 Control → SD-WAN • 🚪 Edge → NAC • 🔐 Per-app → ZTNA / SASE
🏢 Interconnect → Colocation • 🔗 On-ramps → Direct Connect

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🎯 Outcomes (Why CBRS with SolveForce)

• Local, deterministic wireless— campus/plant/venue mobility with predictable QoS & coverage.
• Ownership & independence— run your LTE/5G core & policies; integrate with your identity & security stack.
• SIM-based security— strong device identity, remote lock/wipe, per-app policy.
• Cost-efficient scale— avoid per-device carrier contracts; pool data; neutral-host options.
• Audit-ready— RF, SAS, core, SIM events → SIEM; change records & SLOs published.

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🧭 CBRS in Plain English (What it is)

• Band3550–3700 MHz (US).
• Spectrum tiers
• Incumbent(protected),
• PAL(Priority Access Licenses),
• GAA(General Authorized Access).
• SAS (Spectrum Access System)coordinates channels & power so everyone plays fair.
• CBSDs(radios) register with SAS; Category A/B (indoor/outdoor/high-power).
• Core4G EPC or 5G Core (AMF/UPF/etc.) on-prem or cloud-adjacent; optional roaming to MNOs.
• DevicesSIM/eSIM/embedded LTE-Cat/5G modems; smartphones, scanners, AGVs, tablets, XR, cameras.

We handle SAS integration, CPI installs (Certified Professional Installer), and compliance paperwork—end to end.

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🧱 Building Blocks (Spelled out)

• RANCBSD radios + antennas (sector/omni/panel), Cat-A/B, indoor DAS/small cells or outdoor macro.
• CorePrivate EPC/5GC (on-prem or colo), or hosted—with local breakout and QoS.
• SIM/eSIMprofile generation, K/MSISDN lifecycle, IMEI lock, per-role policy.
• Backhaulfiber, Lit/Wavelength/Dark Fiber, Fixed Wireless, or Mobile; IPsec/GRE to hub. → Lit Fiber • Wavelength Services • Dark Fiber • Fixed Wireless
• Policy/QoSAPN/DP rules, traffic classes, slicing (5G), PCEF/PCF for per-app treatment.
• Identity & PostureSIM auth + device posture via MDM/UEM and EDR. → MDM / UEM • EDR / MDR / XDR

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🧰 Design Patterns (Choose your fit)

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🔐 Security & Zero-Trust (Concrete, enforceable)

• SIM identity + eUICC lifecycle; IMEI lock; lost-device kill.
• APN firewalls; private APN for corp traffic; IPsec/mTLS to core/services. → Encryption • PKI
• NAC at the edge for non-SIM joins (guest Wi-Fi interop). → NAC
• ZTNA/SASE for user/app access; no flat VPNs. → ZTNA • SASE
• MDM/UEM + EDR required for smart devices; policy gates before network attach. → MDM / UEM • EDR / MDR / XDR
• Evidence streams — SIM auth, SAS events, core CDR/SMF logs → SIEM; SOAR playbooks for revoke/rotate/lock. → SIEM / SOAR

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📐 SLO Guardrails (Targets you can measure)

KPI / Scenario	Indoor Small Cell	Outdoor Macro (Cat-B)	Notes
Downlink	100–500+ Mb/s	50–300+ Mb/s	RF & channel width dependent
Uplink	20–150 Mb/s	10–100 Mb/s	Antennas & EIRP matter
One-way latency (user→UPF)	10–25 ms	15–35 ms	5G SA lower than NSA
Roaming handoff	≤ 50–150 ms	≤ 50–150 ms	Device & core config
Availability (redundant CBSDs/core)	99.9–99.99%	99.9–99.99%	Dual power/backhaul helps

SLO breaches trigger alarms, carrier/SAS tickets, and SOAR actions (channel change, power adjust, reroute).

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🔎 RF & Site Engineering (What we actually do)

• Propagation & heatmaps(3.5 GHz): walls/loss models, clutter, EIRP, azimuth/tilt, link budgets.
• Antenna planningsectorization vs omni; panel for aisles; ground/roof mounts with surge protection.
• SAS onboardingCBSD registration, CPI install, PAL/GAA assignment, heartbeat monitoring.
• Interference mgmtchannel plans, neighbor lists, PCI/NR-ARFCN planning; periodic audits.

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📊 Observability & NOC

• KPIs: RSRP/RSRQ/SINR/CQI, attach success, attach time, PRB utilization, drops, throughput, latency.
• Alarms to NOC; weekly reports on coverage gaps, device mix, channel utilization; SIM inventory and usage. → NOC Services

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💵 Commercials (No surprises)

• SpectrumGAA (no license cost) or PAL (licensed in-county); SAS fees per CBSD.
• HardwareCBSDs, antennas, mounts, CPEs, SIM cards, 4G/5G core (on-prem or hosted).
• ServicesRF design, CPI install, SAS onboarding, core integration, SIM lifecycle, NOC/SOC.
• Backhaulfiber / wavelength / fixed wireless / mobile; cross-connects in colo if used. → Colocation • Lit Fiber

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🧪 Turn-Up & Acceptance

1) Design & permits — RF model, Bill of Materials, safety & grounding plan.
2) Install — CBSDs/antennas; power/ground; backhaul; core/APN; SIM provisioning.
3) SAS & CPI — register CBSDs; set EIRP; verify heartbeats & grants.
4) Baseline tests — coverage walk test, throughput, latency, handoff, failover, attach time.
5) Go-live — NOC dashboards; SLO alerts; weekly performance review and tuning.

Artifacts (RF maps, SAS logs, baseline results) stream to SIEM for audits.

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✅ Pre-Engagement Checklist

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🔄 Where CBRS Fits (Recursive View)

1) Grammar — local wireless rails in Connectivity.
2) Syntax — feeds Cloud and on-prem apps via private core & SD-WAN.
3) Semantics — Cybersecurity enforces identity, posture, and logging.
4) Pragmatics — SolveForce AI predicts coverage/capacity, tunes channels & power.
5) Foundation — consistent terms via Primacy of Language.
6) Map — indexed in SolveForce Codex & Knowledge Hub.

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📞 Deploy CBRS That’s Deterministic, Secure & Auditable

Related pages:
Private LTE / 5G • Fixed Wireless • Mobile Connectivity • SD-WAN • NAC • ZTNA • SASE • Encryption • PKI • Colocation • Direct Connect • Connectivity • Networks & Data Centers • Cybersecurity • SIEM / SOAR • NOC Services • Knowledge Hub

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Key terms in plain language

Open a term for a concise explanation of language used on this page.

🌐Broadband

A general term for always-on, high-speed Internet access. Broadband can be delivered over fiber, cable, DSL, fixed wireless, cellular, or satellite networks.

💡Fiber Internet

Internet delivered through strands of glass using light. Fiber commonly supports high capacity, low latency, and strong upload performance, but availability must be confirmed for the exact address.

⏱️Latency

The time it takes data to travel between two points. Lower latency improves voice, video meetings, cloud applications, gaming, and other real-time services.

🔀SD-WAN

Software-defined wide area networking. It manages multiple connections and chooses paths based on application needs, performance, and policy to improve resilience and control.

🔐VPN

A virtual private network creates an encrypted connection across another network, commonly allowing remote users or offices to access private resources securely.

🛡️Cybersecurity

The practices and controls used to protect identities, devices, networks, applications, and data from unauthorized access, disruption, or manipulation.

🚫Zero Trust

A security model that does not automatically trust a user or device because of its location. Access is continuously verified and limited to what is necessary.

🧭SASE

Secure Access Service Edge combines networking and security capabilities in a cloud-delivered architecture so users and locations can receive consistent policy wherever they connect.