User's Guide
Table Of Contents
- RUGGEDCOM SAS-GW
- Table of Contents
- Preface
- 1. Introduction
- 2. Installation and Deployment
- 3. Using RUGGEDCOM SAS-GW
- 4. Configuring RUGGEDCOM SAS-GW
- 4.1. Configuring the Local Time Zone
- 4.2. Configuring the SNMP Read/Write Communities
- 4.3. Managing User Accounts
- 4.4. Managing Base Stations
- 4.4.1. Adding a Base Station
- 4.4.2. Updating a Base Station's Configuration
- 4.4.3. Updating a Base Station's Location
- 4.4.4. Updating a Base Station's Antenna Characteristics
- 4.4.5. Updating SNMP Settings
- 4.4.6. Updating CPI Information
- 4.4.7. Removing a Base Station
- 4.4.8. Viewing Available Base Stations
- 4.4.9. Viewing the Measurements Report
- 4.4.10. Viewing the SAS Registration Information
- 4.5. Managing Subscriber Units
- 5. Monitoring RUGGEDCOM SAS-GW
Chapter 1
Introduction
RUGGEDCOM SAS-GW
User Guide
4 Spectrum Access System
• Section1.3.5, “Spectrum Acquisition”
Section1.3.1
Spectrum Access System
Prior to 2014, the 3.5 GHz band was largely reserved in the United States for authorized federal users, such as
the Department of Defense, Fixed Satellite Systems (FSSs) and select wireless ISPs. These users were granted
priority access to the full 150 MHz spectrum, but only used a small fraction at any given time. Meanwhile, mobile
operators were at the limits of their allocated spectrum and facing increased demand year-over-year.
Since radio spectrum cannot be created, only reallocated, the Spectrum Access System (SAS) was developed
to allow both federal and commercial users to share access to the 3.5 GHz band. Federal users are still granted
priority access, but mobile operators can access the remaining spectrum not in use.
Section1.3.2
Spectrum Access Model
Spectrum access is controlled based on a three-tiered access model that dynamically balances federal and
commercial access requirements. The three tiers are as follows:
• Incumbent Access (First Tier)
The Incumbent Access tier is reserved for
authorized federal and grandfathered Fixed
Satellite Service users operating in the 3.5 GHz
band. This tier is protected by the SAS from any
harmful interference emanating from users
on the Priority Access and General Authorized
Acccess tiers.
• Priority Access (Second Tier)
The Priority Access tier is reserved for users
that have purchased a Priority Access License
(PAL) from the FCC. This tier is protected by the
SAS from any harmful interference emanating
from users on the General Authorized Acccess
tiers.
• General Authorized Access (Third Tier)
The General Authorized Access tier provides
access to the 3.5 GHz band to all other potential
users. A license is not required, granted the
user operates within the rules set by the FCC.
General Authorized Access users are permitted
to use any portion of the 3.5 GHz band not
reserved by a higher tier user. Users may also
operate on any channel licensed to a Priority
Access user that is not currently in use.
Per FCC specifications, an SAS is required to
make available 80 MHz of the spectrum to GAA
users at all times.
3 GHz 30 GHz 300 GHz300 MHz30 MHz3 MHz
RUGGEDCOM SAS-GW is intended for users that require access to the General Authorized Access tier.