AES128/256 Encrypted Communications Handheld IP Mesh Radio with 64 Nodes and Talkgroups

Handheld IP Mesh radio, small size, light weight, equipped with detachable lithium battery, can be both handheld and carried on the back of a single soldier. With fast network access and automatic multi-hop relay, it can provide multimedia communication services such as voice group call, video echo and relay transmission for single soldier, squad and to realize efficient cooperation. It also supports Beidou positioning function and wifi coverage, which can be used with wifi-enabled intelligent terminals for various communications. The system adopts the same frequency networking, multi-hop relay, and supports any network topology, such as point-to-point, point-to-multipoint, chain relay, mesh network and mixed network topology. It can provide wireless broadband communication for emergency response, anti-terrorism and riot control, rescue and disaster relief, daily patrol, etc. The transmission distance can be more than 5km on the ground in an open environment, 300~500m in an obstructed environment (depending on the obstructed environment), and more than 30km from air to ground.

• Centerless networking: nodes have equal status, i.e. as terminal nodes, relay nodes or central nodes;
   

• Arbitrary structured networking: automatic identification of nodes to select the optimal route for bandwidth data;
   

• Security and confidentiality: AES128/256 support through layers of encryption such as working frequency, carrier bandwidth and scrambling code;
   

• Anti-interference and anti-destruction: COFDM, MIMO, ARQ and other technologies are used to improve data bandwidth and anti-interference performance;
   

• Flexible multi-node networking: automatic calculation of link routing and flexible networking based on channel quality, rate, BER and other indicators;
   

• All-IP network interoperability: support for data transmission, interconnection and interoperability of multiple systems, and real-time interaction of multimedia services;

Wireless Broadband Mesh Subway Ground Penetrating Wireless Communication System:

For the special underground environment in the subway, through a combination of chain relay and mesh network topology in the subway station, the rapid deployment of wireless multi-hop network, relay relay transmission, effective solution to wireless signal masking, to achieve penetrating wireless communication between the ground and underground, to provide reliable, stable, high-speed communication security for the station staff. It can also meet the need for staff to move freely with their work tasks, and can also serve as an emergency backup transmission guarantee in case of local failure of the operator's public network in the subway.