Solutions

Multi-link communications

Multiple heterogeneous links managed by one scheduling hub: link quality assessed in real time, switching before the primary link degrades, and the standby network taking over when the primary network fails.

Nine communication links

2 Kbps to 200 Mbps; the bandwidth axis uses a logarithmic scale.

LinkBandwidthLatency / range
433 MHz 2–5 Kbps Long range, penetrates obstacles
Satellite NTN ~10 Kbps 500–800 ms, 200 B per message
NearLink 1:120 ~100 Kbps ~200 m, ~5,000 devices
NearLink 1:1 3.2 Mbps 3 ms
1.4 GHz mesh 10 Mbps 30 km
Dual-5G bonding 30 Mbps Carries 4K@30fps video
5G single link 200 Mbps Highest bandwidth, relayed via cloud
LoRa / LPWAN — 15 km
Wired layer-3 switching — 9 Ethernet + 1 fiber, DPDK

“—” means no bandwidth figure in the source material. The 7-in-1 gateway is in mass production; NearLink is in production use; the UAV links are delivered; 1.4 GHz at 30 km is under development.

Delivered

Five-link UAV scheduling

The onboard multi-link communication hub is the only scheduling entry point: which link carries video, which two links carry telemetry, whether to bond, whether to cache and whether to use satellite are all decided by the hub.

LinkRoleCharacteristics
1.4 GHz mesh networkDirect video link and telemetryLow latency, 10 Mbps, easily blocked
5G-A / 5G-BVideo link via the cloud, dual-path bonding possibleHigh bandwidth, needs cloud relay
433 MHzDirect telemetry2–5 Kbps, long range, resistant to obstruction
SatelliteEmergency telemetry~10 Kbps, 500–800 ms latency, not limited by distance
Video link
1.4 GHz direct → single 5G → dual 5G bonding → local cache. Resolution (4K / 2K / 1080P / 720P @30fps) and compression ratio adjusted to link capacity.
Telemetry
Sent over two links in parallel; the pilot side keeps the best copy by sequence number, timestamp and integrity. Switches to satellite when all ground links are unavailable.
Prediction
Network conditions for the next 10 seconds predicted from historical QoS, position, flight route and weather, with switching in advance; falls back when prediction and measurement disagree.
Decoupling
Link, QoS, fusion engine, AI prediction and bonding modules run independently, each with its own fallback path; links can be added or removed without redesigning the hardware.
UAV multi-link communications project
Contract project

Cross-network failover: Hyper-Converged Ring Gateway

Ten servers on each of networks A and B are joined at the same time. When a primary server on network A fails, business data moves to a standby server on network B, and moves back once the primary network recovers.

Network A Primary servers ×10 A box Bypass Private tunnel B box Inline Network B Standby servers ×10 Service traffic
Hyper-Converged Ring Gateway project
Design 2024.5

Second-generation gateway

The lower layers of the first-generation hyper-converged gateway rebuilt, with layer-3 switching integrated.

System
Switch operating system compiled from Linux kernel 5.4+ source; supports domestic Chinese CPUs
Primary/standby
Any two networks back each other up, up to 8 A boxes; A and B boxes are themselves redundant
Security
MQTT over TLS + built-in CA verification; bidirectional layer-3 hardware encryption of forwarded data; encrypted file system, program bound to chip ID
Forwarding
10 Gbps data processing and forwarding; network processor / ASIC / FPGA options under evaluation
Probe
C-side probe box joins the A–B tunnel, only probes, and detects connectivity automatically

Project enquiries

Tell us the number and types of links, bandwidth and latency requirements, and required switchover time.