User's Guide

Table Of Contents
RUGGEDCOM SAS-GW
User Guide
Chapter 1
Introduction
ESC Sensor 5
Section1.3.3
ESC Sensor
A key component of the SAS is an Environmental Sensing Capability (ESC) sensor. This sensor detects federal
transmissions, such as those from the National Oceanic and Atmospheric Administation (NOAA).
When a federal transmission is received, the SAS establishes a protection zone and revokes spectrum access for all
devices in the zone. RUGGEDCOM SAS-GW responds by requesting grants for another part of the spectrum band.
Section1.3.4
RUGGEDCOM SAS-GW
RUGGEDCOM SAS-GW is a proxy for base stations (and their associated subscriber units) that require access to the
3.5 GHz band.
Primary Functions
RUGGEDCOM SAS-GW performs the following functions:
Registation and De-Registation
RUGGEDCOM SAS-GW registers new base stations and subscriber units with the SAS. Devices can then be de-
registered as needed.
Spectrum Requests
RUGGEDCOM SAS-GW submits requests for spectrum on behalf of registered base stations and subscriber units.
The SAS will grant access based on the devices tier and spectrum availability. Note that higher tiers have priority
over lower tiers.
Relinquish Spectrum
RUGGEDCOM SAS-GW can be instructed to release spectrum back to the SAS for select base stations and
subscriber units. The SAS may also request specific segments back if the spectrum is required by a device
belonging to a higher tier.
Heartbeat
RUGGEDCOM SAS-GW sends heartbeat (keep-alive) messages to the SAS for every registered base station and
subscriber station.
Ports
RUGGEDCOM SAS-GW uses the following ports:
Port Protocol Purpose
161 UDP For SNMP management towards the private network.
443 TCP For outgoing HTTPS communications with the SAS.
Section1.3.5
Spectrum Acquisition
For each base station and subscriber unit added to RUGGEDCOM SAS-GW's configuration, RUGGEDCOM SAS-
GW automatically registers the device with the SAS server and requests spectrum. Once granted, RUGGEDCOM