Broadband Wireless Access at Sea

Practice of using at Eastern part of Gulf of Finland

Federal State Unitary Enterprise

ROSMORPORT

Part II: Modernization 2015

BASE STATIONS

To increase coverage area antenna suspension are chosen up to 70 m over the ground

Vysotsk

Primorsk

Kronstadt

Gorki Peterhof Karavaldai

Gogland

Somers Seskar

Ust’-Luga

SPb

COVERAGE AREA FOR BS KRONSTADT

COVERAGE AREAS FOR SOME of BS’s

Gogland Somers

Primorsk

Vysotsk

Karavaldai

Seskar

Product Key Features • Available in 3.4 to 6.4 GHz frequency bands • High spectral efficiency 6.5 Bit/s/Hz • Multiple Input - Multiple Output (MIMO 2x2) innovative technology • High-capacity - up to 280 Mbps effective throughput • Channel width: 3.5/5/7/10/14/15/20/28/30/40 MHz • Operational distances in excess of 80 km • LOS (Line-Of-Sight) and NLOS (Non-Line-of-Sight) • Advanced Quality-of-Service Support • Robust design

- 300 Mbps (Up to 280 Mbps net throughput) - Middle-to-long range (30+ km) – Long range (80+ km with high-gain external antenna) - Radio technology: MIMO 2x2 with OFDM 64/128 - Modulation types: BPSK ½ to QAM64 5/6 - Transmit power: up to 23 dBm - Receiver sensitivity: -67..-97 dBm - Frequency bands: 3.4-3.7 GHz - Channel bandwidth: 3.5/5/7/10/14/15/20/28/30/40 MHz - 22 dBi dual-pol integrated antenna - Center frequency adjustment step: 125 kHz - Channel duplex: TDD

Modernization

Main reasons: • Equipment is out of production, • Manufacturer no longer provide

technical support. • Require increasing throughput. Advantages: • Using OFDM and MIMO technologies,

providing multipath reception and NLOS, • Range up to 80 km • Channel width up to 100 MB/s

Installation on board: 2 transceivers with 2 MIMO antennas each

ib Kapitan Izmailov

Distance (km)

Bitrate (MB/s)

ib Kapitan Izmailov

Actual bitrate on board

Introduction to MINT protocol MINT – Mesh InterconnectioTechnologyn Network Infinet Wireless units are using proprietary MINT protocol as one and only transport for R5000 products family. MINT operates between DataLink and Network Layers of the TCP/IP Model

MINT protocol was designed to incorporate switching and routing capabilities in one unit. Moreover, switching and routing can be performed at the same time for different traffic types according to configuration rules MINT designed to provide transport over wireless links, therefore MINT link parameters are subject to adopt to rapid change. MINT has capability for automatic best route selection on Layer 2. Manual route selection is also supported for Layer 2 MINT supports predictive model to switch in advance to best path, in order to deliver data the quickest possible MINT-over-Ethernet can be enabled to provide backup and redundant paths, especially for mobility projects. Pseudo Radio Interface (PRF) are virtual interfaces used to provide MINT-over-Ethernet MINT design was inspired by OSPF, meanwhile MINT can operate on Layer 2 and Layer 3 MINT main criteria for optimal path selection is time (minimal packet delivery time)

MINT unique advantages allows IW units to be used in various mobile scenarios Fast switching between different BS along the traffic route. Automatic adjustment of radio parameters Using another IW units as retransmission points to reach BS

Handheld mobile terminal (development stage)

• MIMO Omnidirectional aerial 8dBi • Dual power supply • Radiomodem Infinet • Wi-Fi router • UPS • Range up to 10 km

The housing of the radio transmission unit is made of high impact ABS plastic. degree of protection against dust and moisture IP66 In the building there are two connectors: a double VHF-connector and the external power supply / charging UPS. In addition, the housing may accommodate protected RJ-45 connectors. The basic method of connecting to the radio transmission unit is Wi-Fi, this functionality is provided disposed inside the wireless router, so the interface having four LAN, which can be displayed on the external part of the radio transmission unit. Wireless Router has a built-in antenna. Uninterruptible power supply can continue to operate as a set for 2 or more hours.

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