Compatibility Testing Services for HighEnd Terminal Devices with MultiVendor Network Equipment (Huawei, ZTE, Ericsson, Nokia Bell, etc.)
Highend terminal devices—including automotive central controllers, chipsets, robotic cellular controllers, automated guided communication modules, remote surgical medical terminals, and cloud gaming devices—are entering an era of multidimensional compatibility testing. To ensure reliable interoperability with equipment from various network equipment manufacturers (NEMs), it is essential to build a threedimensional testing framework across protocols, devices, and parameters.
RealWorld Case Study
In one actual case, a new chipset platform by default enabled voice guaranteed bit rate (GBR) verification. Meanwhile, a domestic NEM’s 5GC device had a default configuration of GMBR=0. This mismatch was difficult to detect in singlevendor testing environments.
More subtle is the variation in issue reproduction rates:
The problem reproduced 100% of the time with foreign NEMs,
Yet was fully avoided in configurations by another domestic NEM through proprietary settings.
This underscores the fact that compatibility issues are both widespread and vendorspecific.
Compatibility Discrepancy Table (Based on Actual Project Data)
Key Compatibility Challenges
1. Local Operator Customization vs. Global Vendor Defaults
Example: A Southeast Asian operator configured GMBR=0 to reduce signaling load, which led to massive failures in highend terminals.
2. Protocol Trap Alert
According to 3GPP TS 23.501 V18.3:
“The Guaranteed Flow Bit Rate may be set to zero...”
However, protocol allowance ≠ safe realworld implementation.
3. Quantifiable Economic Impact
Delayed terminal certification due to incompatibility: Average loss $1.2M/month for flagship devices
Fault recovery cost: $380K/event, including operator coordination fees
Deeplight – Compatibility Testing & Technical Solutions
To address such vendorspecific compatibility issues, Deeplight Technology provides clients with comprehensive testing and diagnostic services, including:
1. TerminalSide Compatibility Audits
Construct a chipset matrix for platformlevel verification
Mandatory checking for GMBR, FMBR, and over 108 critical parameter handling logics
2. NetworkSide Vendor Configuration Analysis
Evaluate operatorspecific defaults
Monitor 53 highrisk parameters, including GMBR=0 and QCI1 bearer policies
3. Protocol Stack & Strategy Validation
Deep inspection of interaction flows across 3GPP specs:
TS 23.502, 23.401, 38.211, 38.213, 38.331, and others
4. MultiVendor Compatibility Testing
Real environment simulation of combinations such as:
Huawei RAN + ZTE + Ericsson RAN + Nokia, etc.
Dedicated 5G Test Network with Operator Routing
Deeplight Technology has built a rare, independently configurable 5G testing private network with real operatorlevel routing capabilities. The architecture supports complete endtoend testing, including emerging scenarios such as RedCap and 5G LAN.
We provide comprehensive compatibility test services for highend terminal devices across diverse NEM environments.
For consultation or custom testing services, please contact Deeplight .
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