ACRS 1.
FCC Regulatory Information This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Introduction ACRS 1.0 is the first generation Adaptrum cognitive radio system covering spectrum bands from 400 MHz to 1 GHz. Although capable to operate in other spectrum bands below 1 GHz, Adaptrum ACRS 1.0 is specifically designed to operate in the UHF TV Band (470 MHz – 698 MHz), as TV Band Devices compliant to the rules specified in CFR 47 Part 15 Subpart H. To be rules-compliant, ACRS 1.0 systems must operate as Fixed TV Band Devices and must be professionally installed. ACRS 1.
ACRS 1.0 system must be professionally installed. Please refer to “ACRS 1.0 Professional Installer Manual” for detailed discussion on hardware installation. After installation, the base station and client station system configurations are illustrated in the following figures. Internet Antenna Feed Cable Ethernet ACRS 1.0 Base Radio Base Control PC Ethernet Base station installation diagram. Antenna Feed Cable ACRS 1.
shortcut in the “Start Menu” folder. The software will be launched in the “User” mode. When running in the “User” mode, the software only has access to limited database functions. GUI Control Interface Base station GUI control panel "Link" pane in the “User” mode. The GUI control panel is shown in the above figure. The GUI panel has a main frame body and 6 panes: Log, Link, System Information, Diagnostics, Database and Installation.
Base station GUI control panel “Database” pane. The base and client control panels are only slightly different. The following two figures show the client station “Link” and “Database” panes. Again, the client software will operate in the “User” mode and the information entries for device registration and channel list request are disabled and loaded directly from system registry. The client station “Database” pane doesn’t contain device registration information which is retrieved from the base station side.
Client station GUI control "Link" pane. Client station GUI control "Database" pane.
. Base Station Operation The base station operation is discussed in the following. 1) When the software launches on the base control PC, it will automatically contacted the database and the available channels are shown after “BASE MAC…”. The prompt “Select From Available Channels” requests the user to select a valid channel from the channel list. Note further that device registration is not performed in the “User” mode but during installation – see “ACRS 1.0 Professional Installer Manual”.
4) After the client station successfully connects to the base station, the “Link” pane will show uplink and downlink data rates, modulation schemes, BERs, PERs and signal power estimations as shown in the following figure. Note once connected to the base station, the client station will also send periodical channel list request to the database through the base station.
Client Station Operation The client station operation is discussed in the following. 1) When the software first launches on the client station control PC in the “User” mode, the client will automatically scan all channels specified in the scan channel list.
2) The user can select a different “Scan Channel Set” at any time to look for an active base station. The default scan channel set is entered during installation and is loaded from system registry. The user can modify the scan channel list using “…” button after “Scan Channel Set” (which will prompt for scan channel selections as shown in the following figure) and click “Update Now”. 3) Once the client successfully connects to the base station, it will enter normal operation mode.
4) During normal operation, the client will send channel list request periodically to the base station. When the current base station operating channel is no long in the client channel list, the base station will terminate the connection session with the client. Subsequently, the client will enter scanning mode again and rescan all the channels in the scan channel set.
