Carrier IOT (Interoperability Test)

We offer comprehensive carrier IOT (i.e., mobile terminal protocol conformance testing and application testing). We have wide-ranging experience of evaluating and verifying LTE, UMTS, C2K, EVDO, GSM, WiMAX, etc. We also provide certification testing and support of FCC, PTCRB, GCF, etc. for overseas carriers.

Total support for carrier IOT
Carrier IOT – Test types
Mobile terminal protocol conformance test
  • Verifies that the Air Protocol operation is in compliance with 3GPP/3GPP2.
Performance test
  • Throughput measurement
  • RF performance measurement (Antenna performance measurement)
Application test
  • Checks the operations of pre-installed applications
  • Checks the operation of proprietary applications

Carrier IOT (Interoperability Test)

The Carrier Interoperability Test (IOT) allows equipment suppliers to put mobile terminals into a network. Suppliers cannot sell mobile terminals unless the terminals pass the test specified by the carrier. In Japan, carriers usually define the carrier IOT for manufacturers, whereas overseas carriers use conformance tests developed by third parties (e.g., PTCRB and GCF) as the carrier IOT.

Track record

Japan Novel – Carrier IOT: Track Record
Protocol LTE, C2K, EVDO, GSM, UMTS, WiMAX, Wi-Fi
Carrier docomo
  • IOT for UMTS and LTE at the docomo laboratory
  • IOT for UMTS and LTE in their real network
  • IOT for C2K/EVDO, GSM and LTE using a simulator
  • IOT for C2K/EVDO, GSM and LTE at the au laboratory.
  • IOT for C2K/EVDO, GSM, LTE and WiMAX in their real network
  • IOT for WiMAX at the UQ laboratory
Devices evaluated
  • Cell phone terminals (Feature phones)
  • Android terminals
  • USB dongles
  • Mobile routers
  • Communication modules

Test environment

Tests are done by changing the test environment as follows:
Mobile terminal protocol conformance tester (BS simulator) → Test laboratory → Real network (Field test)

Simulator/Test lab/Real field

Carrier IOT – Test flow

Test plan
Examines details of the latest test specifications.
  • Identifies the differences from former test specifications.
  • Verifies the test method.
Verifies the test items.
  • Develops the questionnaire for the carrier.
  • Develops the questionnaire for the manufacturer.
Test –
Executes the test.
  • Pass/Fail - Determination
  • Q&A/Negotiation with carrier
  • Defect report
Prepares the documents to be submitted.
  • Develops the formal documents to be submitted to the carrier.

Related technologies

Expertise in the Qualcomm chipset

Japan Novel also develops protocols such as air-interface and data communication controls. In particular, we have extensive knowledge and experience with the Qualcomm chipset.

Embedded product development support for mobile terminals

JN's area of service : Middleware, Main CPU, Qualcomm Chip
▲ Mobile terminal development: Japan Novel’s area of specialty

Test automation system – Proprietarily developed

Japan Novel automates integration testing with the mobile terminal protocol conformance tester (BS simulator) by using Quality Commander, the test automation system developed by Japan Novel.

Embedded Software test automation system: Quality Commander

Automatic integration testing with the mobile terminal protocol conformance tester
▲ Automatic integration testing by the mobile terminal protocol
conformance tester and Quality Commander. (Concept)


Inquiries by phone


Reception time 9:30-17:30 (Weekdays) JST

Inquiries in the form

Please feel free to contact us for any questions or requests.

  • “WiMAX” is the trademark of WiMAX Forum.
  • “Android” is the trademark or registered trademark of Google, Inc.
  • “Qualcomm” is the registered trademark of Qualcomm Incorporated.
  • All other trademarks cited here are the property of their respective owners.