WAN Communications Options Definition
Version 0_2
Deleted: 1
connected to provide backhaul connectivity. The lower section shows how WiMAX antennas can use mesh topology to connect.
Data Transport (internet)
Figure 37 Long Range Radio Infrastructure
Deleted: 36
Option
Licensed/Private Frequency
Reference:
LRR1
Description:
For this option a service provider will have obtained a licence for a section of the radio spectrum, and would make all or some of that frequency allocation available for smart metering use.
Meter Hardware:
Radio transceiver chip and antenna, operating at the licensed frequency. See below for examples
Infrastructure Hardware:
Tower based radio infrastructure covering the area where meters are installed. Typically these will be placed at a much lower density than the data concentrators for other options, and could be placed 5-15 miles apart. Each tower will have some equipment with a modem to provide the backhaul connection to the Data Transport.
Data:
Speed of data transmission will depend on the frequency used.
Standards:
As these types of solutions generally use licensed frequency bands, the standards used are likely to be proprietary to the solution provider.
Protocols:
As per standards.
Power:
The Sensus solution uses provides 2 watts of broadcast power from the meters. It also states a 20 year battery life for gas and water AMR meters for daily updates.
International Examples:
The Sensus FlexNet solution is used widely in North America, particularly for one-way gas and water AMR services.
Page 44 of 53
30-Jul-08
Deleted: internet
Deleted: 29-Jul-08