Enhancements to CBRS Baseline Standards (Release 2)

CBRS Baseline Standards (Release 1) can be found here.

On 23 January 2020, the WInnForum approved a new Release 2 specification defining enhancements to the baseline CBRS Operational and Functional Requirements.  It defines optional features and functionality that can be incorporated at any time, with special focus on supporting specific vertical markets and their deployments.

To address backward compatibility with the WInnForum Release 1 Baseline Standards, the only mandatory feature in Release 2 for a SAS or CBSD is to support the feature capability exchange between SASs and CBSDs. Based on the Release 2 additions, exciting emerging technologies can be considered and implemented. Examples include:

  • Single Frequency Group - a set of CBSDs that require a common radio frequency assignment and reassignment when frequency reassignment is necessary or preferred; and,
  • 2D Antenna Patterns - requirements on how CBSD two-dimensional antenna patterns should be specified and used by the SAS to calculate CBSD antenna gain in a certain direction, taking both horizontal and vertical patterns into account.

Additional emerging technologies can be considered in subsequent releases.  Details can be found in the Release Plan here.

WINNF-TS-1001
Version 1.1.0 
2 April 2020

CBRS Release 2 Operational and Functional Requirements

V 1.0.0 (deprecated 2 April 2020)

WINNF-TS-3002
Version 1.0.0
5 March 2020

Extensions to SAS-CBSD Interface Technical Specification (Release 2)

WINNF-TS-3003
Version 1.0.0 
2 April 2020

Extensions to SAS-SAS Interface Technical Specification (Release 2)

WINNF-TS-4005
Version 1.0.0
14 May 2020

CBRS Release 2 Self-Testing Policy


These specifications are documents designed to provide a WInnForum-supported definition of a specific architectural element or interface within a software defined radio, cognitive radio or dynamic spectrum access system.

Public comment on these specifications can be provided by submitting change requests through the Forum's public issues management portal.