Opps,

Replied direct this is a bit one sided of the conversation but I want to make certain the community is clear on this as CBRS is a valuable spectrum.

Unfortunately Shane this is incorrect.   GAA is not significantly different then any unlicensed spectrum as to interference avoidance.  But the SAS will typically have tools that will give you some info on how to avoid channels already in use.  This is truly useful.

As a CBRS GAA user, i can understand your confusion,  When a SAS (Spectrum Access System) states a channel is "free" that just means it is not currently in use by a higher priority user such as an incumbent or PAL user.  Any GAA can request a channel in use in the area by another GAA.  You have no interference protection rights as a GAA / 3rd tier user.  Again the SAS can and should assist you with finding a clean channel and potently working as a mediator between GAA users but there is no guarantee or protections.

This might be helpful.  @10:10 this video from google SAS's tech team talks about this very thing.

https://www.youtube.com/watch?v=jJ5pUE68ndE

What makes it different is once you've been allocated spectrum, which for in-building use is almost guaranteed, no one else can use that spectrum, so it's guaranteed. Unlike Wifi, where any device can transmit in those frequencies.

Shane 

On Tue, Nov 30, 2021 at 3:45 PM Michael Thomas <mike@mtcc.com> wrote:

On 11/30/21 12:43 PM, Shane Ronan wrote:

What do you mean 3rd Tier?

General Authorized Access? Taken from some random site looking it up.

Mike

On Tue, Nov 30, 2021 at 2:47 PM Michael Thomas <mike@mtcc.com> wrote:

On 11/30/21 11:38 AM, Shane Ronan wrote:

The spectrum is CBRS and there are MANY benefits to 5G over Wifi, including but not limited to guaranteed spectrum.

For the 3rd tier I assume that works pretty much like wifi spectrum, right? It seems to be at about 3.5Ghz so that would be pretty short distance. Other than handoff what other advantages does it have over wifi (can wifi do seamless l2 handoff these days?)

Mike

On Tue, Nov 30, 2021 at 2:29 PM Michael Thomas <mike@mtcc.com> wrote:

https://aws.amazon.com/about-aws/whats-new/2021/11/preview-aws-private-5g/

Why would somebody want this over wifi? And what spectrum are they
using? They can't just camp on allocated spectrum, right?

Mike