CBRS

CBRS – shared commercial use of the 3.5 GHz band

In April 2015, the FCC formally established Citizen Broadband Radio Service (CBRS) for shared commercial use of the 3.5 GHz band. Dynamic spectrum sharing of the lightly licensed 3.5GHz band provides a solution to ever growing demand for capacity as well as opens the market for new business opportunities and business models for new comers and existing MNO’s, such as Private LTE networks, Neutral Host Networks (NHN), Fixed-Wireless Internet Services, CBRS-LTE mobile hotspots and Backhaul over CBRS’ band.

Airspan’s portfolio of products including the new innovative AirSpeed are specifically designed to provide a complete CBRS solution.

CBRS explainer video:

Spectrum dynamically managed by Spectrum Allocation System (SAS)

  • 3-Tier Access
  • Incumbent Access (High) – Reserved for Federal and Fixed Satellite Services (FSS), protected from all other tiers by SAS
  • Priority Access (PA) – Paid census-tract (localized) licenses – up to 70MHz from the new 150MHz block, awarded via bidding process. Protected from GAA users by SAS
  • General Authorized Access (GAA) – Opportunistic spectrum usage. Unprotected from higher tiers
  • Up to 40MHz can only be used per region by a single PAL licensee
  • Can be used as GAA if available
  • Environmental Sensing Capability (ESC) system will monitor incumbent radar activity
  • ESC will notify SAS to vacate the used spectrum

eNB (CBSD )

  • Support entire 150MHz in a single skew
  • Report location to the SAS at ±50m horizontal and ±3m vertical
  • Category A (AP, Femto, Outdoor lower than 6m) Max EiRP – 30dBm @ 10MHz channel
  • Category B (Outdoor only, professionally installed) Max EiRP – 47dBm @ 10MHz channel