Issue: CBSD has been stuck with suspended grants due to DPA activity since April 11th at 10:00 AM. (This is an example but we have seen the same in other CBSDs)
We understand that the PAL channel is unavailable at this location due to radar or high DPA activity, as shown in the spectrum availability.
Our question is: why hasn't the CBSD automatically relocated to the top 50 MHz of the band? In similar cases, we've typically had to manually restrict the spectrum to the top 50 MHz within the CBSD configuration.
Supported spectrum configured: 150MHz
CBRS Frequency Type is set to PAL as top priority.
CBSD: AH220705115
Additional Details:
We're noticing that Google's SAS behaves differently compared to the other SAS server we’ve been working with.
With the other SAS server, it seems easier to obtain authorized grants without needing to restrict the inquired spectrum in the CBSD configuration. If a requested channel (PAL or GAA) isn’t available, the system can reallocate to a different one, allowing the CBSD to still receive grants.
With Google’s SAS, however, we often need to limit the inquired spectrum to the top 50 MHz to successfully receive grants and avoid suspended grants caused by DPAs, sometimes for an undetermined period.
We've also been trying to leverage the PAL Prioritization feature to maximize PAL usage and enhance customer benefit.
The challenge we’re facing is that when PAL channels are unavailable due to DPA activity, the grant on the PAL channel gets "stuck" in a suspended state—sometimes for several hours or even days. With the other SAS provider, if a PAL channel isn’t available, a GAA channel is automatically allocated instead.
Thanks!
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