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3GPP conformance
TS 38.521 / 38.523 (NR), TS 36.521 / 36.523 (LTE) protocol conformance. RF, RRM, and signaling test campaigns on certified test equipment.
3GPP conformance, IODT, performance, and field validation across cellular modems and IoT radios. The same protocol-stack discipline that Qualcomm, Broadcom, MediaTek, and Nvidia apply before their silicon ships.
A 5G modem implements a contract written in over ten thousand pages of 3GPP specification. Every layer — PHY, MAC, RLC, PDCP, RRC, NAS, IMS — has hundreds of message exchanges, timers, and corner cases that must behave exactly as specified, on every network, in every region.
Protocol validation is how that contract is actually enforced. Done well, it catches bugs before silicon tape-out, before regulatory submission, and long before an end-user sees a dropped call. Done poorly, it produces device recalls and carrier blacklists.
We run protocol validation at a discipline consistent with what the largest modem vendors expect: conformance suites, IODT campaigns, performance benchmarking, field validation, and root-cause down to L1 traces.
TS 38.521 / 38.523 (NR), TS 36.521 / 36.523 (LTE) protocol conformance. RF, RRM, and signaling test campaigns on certified test equipment.
IODT campaigns against operator core and RAN setups — Verizon, AT&T, T-Mobile, Vodafone, Reliance Jio, Airtel, NTT, KDDI, SoftBank, China Mobile, and tier-2 operator scenarios.
Full RAN emulation on Keysight UXM, R&S CMX, Anritsu MT8000A. End-to-end IMS, EPC, and 5GC lab setup with controllable impairments and channel models.
Drive testing, ride testing, and stationary measurement campaigns across multi-operator footprints. Coverage, capacity, mobility, and handover characterization.
Throughput, latency, attach-time, handover-success, voice MOS, jitter, and battery life under representative workloads. Statistical regression across modem firmware revisions.
Layer-1 trace analysis, MAC scheduler debug, RLC AM/UM corner cases, RRC reconfiguration debugging, and NAS authentication / session management triage.
Carrier-specific test plans for major operators worldwide. PTCRB, GCF, FCC, and regional regulatory submission packages.
NB-IoT, LTE-M, 5G RedCap, and 5G NTN conformance. Power-saving mode (PSM), eDRX, and small-data transmission validation across 3GPP releases.
A practical, opinionated stack — chosen for production reliability, not novelty. We add to it carefully, and we share what we learn.
| Engagement model | Per-feature, per-release, or sustaining engagements8 weeks to multi-quarter programs |
|---|---|
| Typical deliverables | Test plans, automation, conformance reports, IODT logsCarrier and certification submission packages |
| Quality bar | 100% mandatory test pass, optional features trackedField KPIs aligned with operator acceptance bars |
| Hand-off & ownership | All scripts, logs, and reports; defect tracking continuityOptional retainer through certification cycles |
We work with a small number of partners each year. The right first step is usually a conversation. Or look at what we build.
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