Enhanced network availability for private enterprise networks in shared spectrum systems

A method comprising:

• aggregating, at a domain proxy, traffic for Citizens Broadband radio Service Devices (CBSDs) in a private enterprise network;
• instantiating, at the domain proxy, a local spectrum access system (SAS);
• monitoring, at the domain proxy, communication with geo-redundant instances of the SAS that allocate frequency bands in a shared spectrum to the CBSDs;
• switching over, at the domain proxy, from the geo-redundant instances of the SAS to the local SAS in response to the geo-redundant instances of the SAS becoming unavailable;
• and
• responding, from the local SAS, to heartbeat messages from the CBSDs.

A domain proxy, comprising:

• at least one processor;
• and
• at least one memory including instructions which, when executed by the at least one processor, cause the domain proxy at least to perform:
• aggregating traffic for Citizens Broadband radio Service Devices (CBSDs) in a private enterprise network;
• instantiating, at the domain proxy, a local spectrum access system (SAS);
• monitoring communication with geo-redundant instances of the SAS that allocate frequency bands in a shared spectrum to the CBSDs;
• switching over from the geo-redundant instances of the SAS to the local SAS in response to the geo-redundant instances of the SAS becoming unavailable;
• and
• responding, from the local SAS, to heartbeat messages from the CBSDs.