We engineer LTE, 5G, multiple carriers, Multi-SIM and regional BWA as one resilient connectivity system with autonomous recovery.
Since the launch of 5G services, easy-to-deploy DSS has expanded while refarming of LTE spectrum to 5G NR has progressed in parallel. Industrial systems therefore need connectivity designed to operate throughout this transition.
As LTE spectrum narrows, congestion can have a greater impact on communications.
Use both available LTE and 5G access while preparing infrastructure for the transition toward 5G.
Combine 5G, LTE, regional BWA and local 5G according to the operating environment and mission requirements.
Maintain alternative communication paths so operations are not dependent on a single carrier or network.
Monitor communication and device states and support autonomous recovery when abnormalities are detected.
Keep essential local functions running without depending entirely on continuous cloud connectivity.
Optimize the radio environment by engineering not only the gateway, but also antennas and installation conditions.
Non-stop connectivity is not a single product. It is an architecture built by layering resilient technologies.
In a local 5G evaluation conducted with a technology partner, IDY examined latency across the 5G radio segment, iR800B-102 forwarding and the complete end-to-end path over an L2 overlay. The architecture, test conditions and results are summarized below.
A 100-byte RTT probe ran alongside UDP traffic in separate downlink and uplink tests. Average latency, the 99th percentile (P99) and packet loss show how the path behaved under load.
| Direction / state | Offered → delivered | Mean RTT | P99 RTT | Loss |
|---|---|---|---|---|
| DLUnder downlink load | 70 → 69.9 Mbps | 13.72 ms | 16.36 ms | 0% |
| ULUnder uplink load | 20 → 20.0 Mbps | 10.66 ms | 13.98 ms | 0% |
| ULAt configured limit | 30 → 27.4 Mbps | 225.7 ms | 253.2 ms | 8.3% |
With the base-station uplink path configured at about 30Mbps, queueing increased RTT and loss near that capacity. The result informs capacity headroom and workload planning.
Method: each offered load ran for approximately 60 seconds, with one run per direction. RTT used sockperf at 100 bytes and 100 packets/s alongside iperf3 UDP traffic. Published rates are received throughput in this configuration.
Conditions: local 5G n79 with 100MHz bandwidth over an L2 overlay. Only the 5G path was active; seamless failover and dual-path performance were outside this test scope.
IDY / INTRODUCTION VIDEO
A short introduction to IDY’s low-latency connectivity, redundant communications and operational visibility.
09 / STANDALONE AUTO RECOVERY
Monitor connection states and data flow, and attempt progressively stronger recovery when a fault is detected.
01 / MONITOR
Detect interruptions, disconnections and loss of coverage.
Detect when the wireless communications unit stops responding.
Monitor conditions such as data traffic falling far below normal levels.
02 / STEP-BY-STEP RECOVERY
STEP 01
Current line
Try to reconnect the current line.
If reconnection continues to fail, advance to the next stage.
STEP 02
Wireless communications unit / Up to 3 attempts
Soft-reset and reinitialize the wireless communications unit.
If up to three attempts do not restore communication, advance.
STEP 03
Wireless communications unit / Up to 3 attempts
Hard-reset and reinitialize the wireless communications unit.
After three unsuccessful hard resets, restart the device.
STEP 04
Entire device
Restart the device, bringing its operation and wireless communications unit back up.
Check data communication again after restart.
03 / VERIFY & RETURN TO MONITORING
At each stage, the wireless communications unit is reinitialized and checked, from responsiveness and radio connectivity through IP communication and actual data passage. Return to normal monitoring once communication recovers; otherwise proceed to the next recovery stage.
SUPPORTED PRODUCT SERIES
NEXT / ADD PATH REDUNDANCY
Build multi-SIM and multi-line redundancy on top of automatic recovery. The next section explains alternative paths and the separate control sequence that switches between them.
Explore redundancy and path switchingResilience is determined not by SIM count alone, but by how many networks remain registered, how many links can carry traffic concurrently and which path can take over after a failure. IDY engineers link monitoring, path selection, post-switch validation and recovery decisions as one communications-control system.
The separate redundancy-switching sequence is triggered when single-device recovery does not restore communication, or when conditions such as RSRP falling below a configured threshold are detected. Combine recovery of the current path with selection of an alternative communications path.
iR800B-102
iS201BTwo paths can operate as Active links. Switching to internal SIM B requires network registration, so recovery takes longer than with a registered standby path.
iR800B-107iS201BAll three networks remain registered, with two Active links and one Standby path. Keeping the standby network registered reduces the processing required before switching compared with a re-registration architecture.
“Two Active” provides two concurrently available, independent WAN paths. Engineer network registration, carrier selection, detection, routing and application retransmission and sessions together, then evaluate switchover time and continuity. Bandwidth aggregation and seamless switching are application-specific system and control design topics.
With the cooperation of Tama Cable Network Co., Ltd., IDY evaluated connectivity and data communication using its Regional BWA SIM across IDY LTE routers, 5G/LTE gateways and 5G USB modems. The results confirm interoperability for nationwide deployment based on the Regional BWA roaming framework among CATV operators.
Scope: network attachment and data communication on Regional BWA Band 41. Deployment requires configuration appropriate to each operator’s SIM contract, APN, authentication and roaming conditions.
These examples present engineering scope and measured findings from development and validation work. Customer names and project-specific identifiers are intentionally omitted.
IDY integrated 60GHz wireless into an iR800B-based teleoperation system. The architecture carries immersive video and audio, control traffic and time synchronization while prioritizing low latency and low jitter.
In an n79 100MHz local 5G environment, IDY measured a path including iR800B and an L2 overlay. Average RTT was 7.5–7.7ms across the 5G segment and 9.3–9.6ms end to end, isolating approximately 2ms of device and overlay overhead.
For a high-speed mobility test environment, IDY examined device functions that identify authorized areas and multiple cells before allowing transmission. The design translates regulatory conditions, cell selection and operational visibility into product behavior.
Each case relates measured results to its system, configuration and radio conditions. Use an application-specific architecture and evaluation plan to guide development and deployment.
