How does your technology differ from standards based 4G technologies like LTE and WiMAX?
Standards based LTE and WiMAX radios were developed for worldwide consumer markets using very low transmit power (500 mW or less for remote radios), very wide channels (5, 10 and 20 MHz) and just a few frequency bands.
FullMAX™ uses similar protocols and concepts but was developed specifically for private wide area data networks with a focus on long range, non-line of sight broadband coverage. To that end, FullMAX™ uses very high transmit power (up to 10 watts standard) at both the base station and remote sites, narrow and wide channels and any and all frequencies in the VHF and UHF bands. These modifications allow for non-line of sight coverage up to 30 miles or 2,800 square miles vs 5 miles or 75 square miles from a standards based LTE or WiMAX base station.
You say you use only use licensed frequencies.
How do I get access to these?
There are multiple ways to obtain licensed frequencies including
- leasing or purchasing frequencies in the secondary spectrum markets
- participating in FCC auctions and / or;
- applying for frequencies directly from the FCC.
Full Spectrum works hand and in hand with its customers to make sure they can pursue all of these options.
Aren’t licenses expensive?
Relatively speaking, licenses are a great deal for private wide area networks. Unlicensed and low power licensed products have a limited range with a maximum of 5 miles non-line of sight coverage. That translates to a tower every 75 square miles. In comparison, a FullMAX radio using 10 watts of power propagates up to 30 miles or 2,800 square miles (more than 35 times the coverage of other products).
Setting aside the time involved and restrictions in constructing new towers, other 4G networks require approximately $7M more in capital for the same coverage as a single FullMAX base station. And another $20M in operations & maintenance expense to support the additional tower infrastructure over a 10 year life. In most instances, you will not need to add a single tower to your existing land mobile radio network.
What can I expect to pay for frequencies?
Frequencies are typically priced on a dollar per MHz pop basis. Most of the frequencies we use are non-consumer bands and are much less expensive than commercial bands. A good rule of thumb is $.50 to $1 per MHz pop. For example, if you have 1 million people living in your service territory, you can expect to pay up to $1M for 1 MHz of spectrum. We recommend that you acquire at least 500 kHz of spectrum in order to enable infinite reuse in your territory.
What kind of data rates do you support?
The end user or device data rate is a function of the channel size, the encoding rate of the signal and the number of end devices sharing the channel. FullMAX™ is based on adaptive modulation and coding which ranges from QPSK ½ to 64 QAM ¾. The modulation and coding obtained at the end device is based on the CINR (carrier to interference plus noise ratio) and adapts in real time.
For a sample 500 kHz channel, the total data rate in the channel would range from 250 kbps to 1.650 Mbps based on the CINR of the link. In a 1 MHz channel, the rates range from 500 kbps to 3.3 Mbps.
FullMAX™ uses time division duplexing which means that the UL and DL are a shared resource. The ratio of UL to DL traffic is a network configurable feature in which the data capacity can be allocated to mostly uplink, mostly downlink or symmetrical.
How can I reuse the frequencies I own?
FullMAX supports two types of frequency reuse options: Partial Use of Sub-Channels (PUSC) and Band-AMC. In general, we recommend the use of Band-AMC in narrow-channel deployments for a number of reasons:
1) Band-AMC uses fewer sub-carriers as pilots meaning higher spectrum efficiency and greater data capacity
2) Band-AMC uses fewer sub-carriers per sub-channel per symbol which improves receiver sensitivity.
3) Band-AMC makes consistent use of more sub-carriers across all phases of transmission - Preamble, Downlink data and Uplink data – providing greater data capacity.