User's Manual

AIR GIGARAY 70 GHz Technical Specification
Proprietary & Confidential Maribor, 25 June, 2020 Page 5 of 32
2. GLOBTEL GIGARAY SOLUTION
2.1. General Description
Globtel GIGARAY system is a unique wireless point to multipoint solution that enables
operators to offer their customers full set of triple play services. System is especially
suitable for areas with less developed infrastructure as it can be set-up very quickly and
can cover wide area at once. It can deliver fiber-like services without the need for
construction works, roadblocks and long deployment times. In 360° coverage configuration
the system can achieve up to 14 Gbps of total throughput at base station location and up
to 2 Gbps per single customer. Globtel Gigaray 70 was specially designed to be used with
unlicensed frequency bands in the USA in 70 GHz and 80 GHz range.
The system uses Frequency Division Duplex (FDD) which means that different frequencies
are used for upstream and downstream. In this way system can be used to the full
potential as downlink and uplink do not share the same frequency which is an advantage
over most of other wireless solutions that share the same spectrum for downlink and
uplink. The system consists of base station indoor equipment with sector antennas and a
transceiver which is installed at the customer premises.
System supports Docsis 3.0 and Docsis 3.1 transmission technologies. The system combines
several Docsis/Euro Docsis channels to achieve total supported bandwidth of 500 MHz per
sector in each direction. Throughput that can be achieved is dependent on Docsis
transmission and in line with Docsis standards.
2.1.1. BASE STATION THROUGHPUT
Cumulative throughput of the base station depends on number of sectors used and
transmission technology. In the table below you can find total throughput per single sector
by using 500 MHz of frequency bandwidth and Docsis 3.1 transmission. To calculate the
total throughput of all sectors just multiply single sector capacity with number of sectors.
Downlink
Uplink
Modulation
500 MHz
Bandwidth
Bits per Hz
500 MHz
Bandwidth
Bits per Hz
QAM512
3.516 Gbps
7.03
QAM256
3.175 Gbps
6.35
3.100 Gbps
6.35
QAM128
2.700 Gbps
5.40
2.700 Gbps
5.40
QAM64
2.400 Gbps
4.80
2.400 Gbps
4.80
QAM32
2.000 Gbps
4.00
2.000 Gbps
4.00
QAM16
1.900 Gbps
3.80
1.600 Gbps
3.20
QPSK
/
/
1.200 Gbps
2.50
Table 1: Sector downlink throughput with 500 MHz bandwidth and Docsis 3.1