Metnet product specification

Metnet nodes connect autonomously to form flexible MPtMP (mesh) self-organising (SON), self-healing links that dynamically reconfigure to optimise performance and spectral efficiency as LOS or NLOS circumstances or traffic levels change. The CCS Metnet system enables microwave deployment in a flexible, organic way allowing customers to start small and grow as they go.

Applications include:

Small cell backhaul (3G, 4G LTE, 5G)
Public Wi-Fi backhaul
CCTV backhaul
FWA (fixed wireless access)
Fiber extension, protection & redundancy

The Metnet system operates in a single frequency channel with no radio frequency planning required. Frequency reuse in the entire network is 1. Each node has a wide 270-degree field of view, so only one unit is required per site, rather than multiple radios. There’s no need for any manual alignment and each node supports multiple connections for higher resilience.

The nodes poll the network continually and automatically determine the optimal topology to deliver capacity where needed. Each cluster runs a Spatial-TDMA transmission schedule, which allows links to operate simultaneously to increase the overall capacity delivered to each node.

1.2 Gbps throughput is achieved by using a by using a dual channel TDD radio (in a single 112 MHz channel pair) operating at 256 QAM modulation. The radio features a wideband diplexer which is SW configurable for any channel between 24-29 GHz.

Technical specifications

Metnet 1.2 Gbps

Technology

Self-organising (SON) multipoint-to-multipoint system (MPtMP)

Capacity

1.2 Gbps single node

2.4 Gbps dual node
UL and DL ratio 100% dynamically configured

Latency

40 μs per hop

Topology

Flexible MPtMP (Mesh), MultiHop, PtMP or PtP

Scalability

Interference management enables the system to scale infinitely

Radio

Frequency bands

26 GHz band (24.5–26.5GHz)

28 GHz band (27.5–29.5GHz)

Future: 38-43GHz, 60GHz unlicensed

Channel sizes

112 MHz ETSI or 100 MHz FCC

Single frequency channel used across all nodes

Radio access method

Dual-TDD

Radio transmit power

+24 dBm with adaptive power control

Modulation and coding

Hitless Adaptive Modulation QPSK ½ FEC to 256 QAM 4/5 FEC

Services

Ethernet Services and QoS

Native Ethernet

802.1Q (VLAN tagging)

802.1p (Class of service)

Differentiated Services Code Point (DSCP)

802.1ad (QinQ)

Synchronisation

GPS-derived synchronisation providing local master SyncE and 1588v2 PTP clock to the small cell (G.826x/G.827x)

1588v2 Transparent Clock (G.8273.2)

Recovery from core network SyncE and 1588v2 PTP

Proprietary distributed radio synchronisation to overcome GPS failures

Antenna

Antenna gain

Standard node: +19 dBi integrated sectors

High gain node: +33 dBi (20 cm) or +43 dBi (60 cm)

Antenna coverage

Standard node - 270° horizontal x 20° vertical

High Gain node - 4° horizontal x 4° vertical

Range

Standard node: 2km

High gain node: 10km

Node characteristics

Size

Standard node: 185 mm height; 202 mm diameter, 2.3 litres

High gain node: 260 mm height; 535 width; 270 mm length

Weight

Standard node: 4.2kg

High Gain node: 6.8kg

Power requirements

100V – 240V AC / 50 – 60 Hz

48 V DC and PoE (1 x PD interface IEEE 802.3af/at/bt)

35W consumption

Power connection via IP67-rated connector

Interfaces

2 x GE electrical interfaces via IP67-rated connectors

Optional add-on optical interface with SFP

Node MTBF 25+ years. System MTBF approaching infinity due to self-healing mesh

Download datasheet

Copyright © 2017 CCS Ltd     Privacy policy Designed & Developed by Onespacemedia

Tel: +44 1223 314 197
Email: info@ccsl.com

Search: