Antenna Node Information

0803-EX-ST-2018 Text Documents

ADTRAN Inc.

2018-05-04ELS_209170

                                                                                               Self-organising mmWave
                                         Enabling 5G
                                                                                                    access and backhaul




Metnet 1200 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 mmWave deployment in a flexible, organic
way allowing customers to start small and grow as they go.

Applications include:

     Small cell backhaul

     Pre-5G FWA and enterprise

     Wifi backhaul

     Fibre/G-Fast extension

     CCTV backhaul




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 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.


 Metnet 1.2 Gbps

 Technology                                 Self-organising (SON) multipoint-to-multipoint (MPtMP) and point-to-multipoint (PtMP)


 Capacity                                   1.2 Gbps single node
                                            2.4 Gbps dual node
                                            UL and DL ratio 100% dynamically configured


 Latency                                    <1mS


 Topology                                   Flexible MPtMP (Mesh), MultiHop, PtMP or PtP


 Scalability                                Interference management enables the system to scale infinitely


 Radio

 Frequency bands                    26 GHz band (24.25-26.5 GHz)
                                    28 GHz band (27.5-29.5 GHz)
                                    Future: 32-43GHz, 60GHz unlicensed

 Channel sizes                      56 MHz and 112 MHz ETSI, and 100 MHz FCC
                                    Single frequency channel used across all nodes


 Radio access method                Dual-TDD


 Radio transmit power               +18.5 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 using 16 antenna array
                                    Each sector azimuth is 34°
                                    High gain node: 4° horizontal x 4° vertical


 Range                              Standard node: 2km
                                    High gain node: 6km


 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: 4.2 kg
                                    High gain node: 6.8 kg


 Power requirements                 100V – 240V AC / 50 – 60 Hz
                                    48 V DC and PoE (1 x PD interface IEEE 802.3bt)
                                    35W consumption
                                    Power connection via IP67-rated connector


 Interfaces                         2 x GE electrical interfaces via IP67-rated connectors


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




November 2017

Cambridge Communication Systems Ltd,
Cambridge, UK
+44 1223 314197 | info@ccsl.com | ccsl.com



Document Created: 2018-05-04 13:43:17
Document Modified: 2018-05-04 13:43:17

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