OnGo Alliance Specifications
Enhancing Coexistence in the Citizens Broadband Radio Service
Key Bridge Wireless, as a certified Spectrum Access System (SAS) administrator in the 3.5 GHz Citizens Broadband Radio Service (CBRS) band, actively supports the shared-spectrum framework established by the FCC.
The OnGo Alliance specifications discussed in this chapter—OnGo-TS-2001 Coexistence Technical Specifications (V3.2.0) and OnGo-TS-2002 CBRS Coexistence CSAS Profile (V4.0.0)—build directly on the foundational WINNF standards to deliver practical, industry-driven enhancements for multi-vendor coexistence and network performance.
These two documents work together as a complementary pair: OnGo-TS-2001 provides the detailed technical rules and procedures for effective coexistence, while OnGo-TS-2002 translates those rules into actionable deployment profiles tailored to different use cases. The diagram below illustrates how they relate to the underlying FCC and WINNF foundation:
FCC Part 96
(Regulatory & Legal Foundation)
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v
WINNF-TS-0112
CBRS Operating Requirements
(Baseline + Release 2)
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+------------+------------+
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v v
OnGo-TS-2001 OnGo-TS-2002
Coexistence Technical CBRS Coexistence CSAS Profile
Specifications (V4.0.0)
(V3.2.0) • Baseline CSAS
• Synchronization • Fixed Wireless CSAS
• Channelization • Mobile Network CSAS
• Interference models • IoT CSAS
• IAP refinements • Mandatory/Optional features
• NR & LTE TDD patterns • PAL Leasing support
• Alignment with WINNF R2
| |
+------------+------------+
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v
Practical Deployment Guidance
(Multi-vendor coexistence & profiles)
OnGo-TS-2001 defines synchronization requirements (including TDD configurations for LTE and 5G NR), channelization plans (5/10/15/20 MHz bandwidths with NR extensions), interference mitigation techniques, and refinements to WINNF’s Iterative Allocation Process (IAP). It introduces graph-based interference modeling (e.g., Connected Set and Common Channel Groups) and supports NR-specific adaptations such as 15 kHz subcarrier spacing and limited TDD patterns.
OnGo-TS-2002 builds on this foundation by defining targeted Coexistence SAS (CSAS) profiles—Baseline, Fixed Wireless, Mobile Network, and IoT—each specifying which WINNF Release 2 features (such as enhanced CBSD group handling, single-frequency groups, CPE-CBSD indicators, and grant updates) are mandatory, recommended, or optional. This profiling enables SAS implementations to align precisely with specific deployment scenarios while maintaining full interoperability with WINNF protocols.
Together, these OnGo documents form an important enhancement layer atop the WINNF core standards. They enable more robust, interference-managed deployments in dense or mixed environments, support faster rollout of private wireless networks, improve spectrum efficiency, and contribute to a competitive, high-quality CBRS ecosystem. For Key Bridge Wireless, they represent valuable tools that promote reliable GAA and PAL operations and help realize the full potential of shared spectrum.
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