RF modules

Technology Package

  • Modular ANSI C90 DMR Source or Binary Code
  • Software Requirements Specifications (to ETSI standards)
  • Interface Requirements Specifications
  • High Level Design
  • Software Test Plan
  • Software Test Description (traceable to SRS)
  • DMR Test Script Library (traceable to SRS)
  • ELITE and ESTV
  • Integration Services
  • One Year Warranty (with option to renew)

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Home > LMR Protocols > DMR > DMR MS Protocol Stack

DMR Mobile Station Protocol Stack

Etherstack's DMR Mobile Station Protocol Stack is constructed as a set of modular, layered ANSI C components and can be split across multiple processors as required. Our FEC solution achieves excellent (better than analog) coverage and has been optimized for deployment on either a GPP or DSP.

We offer DMR Tier 2 (Direct Mode + Repeater) and DMR Tier 3 Trunking starter packages. We also offer analog and MPT1327 options for graceful migration to digital, and a full suite of advanced features including data and encryption. You can purchase these immediately or upgrade later as your requirements evolve.

Layer 1 exposes a 96ksample/s I/Q P-HAL interface and stubs to either the DVSI AMBE+2 Vocoder (recommended by the DMR Association) or an alternate vocoder of your choice. Processor optimized code is also available.

Potential customers are welcome to walk through our DMR technology in our labs in Yokohama, London, Sydney or New York.

Feature Options

Short Data Service / Packet Data (TS 102 361 4) / Analog FM (CTCSS and DCS) / MPT1327 / Encryption (unstandardized) / Duplex Call / Authentication (Normal/Mass) / Stun, Revive, Kill / Composite Control Channel Operation / Asynchronous Control Channel Activation / Closed Loop Power Control / Pre-emption / Powersave

Outstanding Coverage, Low BOM Cost

DMR was standardized as a low cost technology to replace analog radio. However, sophisticated error correction is needed to match coverage, which requires expensive processors. Etherstack's internationally recognized FEC experts have dramatically reduced the MIPS cycles of our FEC implementation while improving its performance, so that similar (or better) coverage than an analog system can be achieved on low cost components.

You lower your BOM cost and your customers maintain their existing sites and network footprint.

Risk-Free 12 Month Warranty

After delivery, Etherstack provides a 12-month warranty against any defects. If an issue is found we fix it immediately at no extra cost. We actively maintain stack source code, incorporating bug fixes for our customers as well as tracking changes to the standards. After the warranty period is over, we offer an annual maintenance subscription for access to ongoing code releases and issue resolution.

Full Test and Debug Capability

Our DMR MS Protocol Stack supports fully automated testing and is supplied with Etherstack's test environment ELITE, Etherstack TraceViewer and a comprehensive library of test scripts that provide traceability against all protocol stack requirements.

These tools allow you to maintain the software across different radio platforms and allow advanced debugging during development, integration, field trials and as new features are introduced over time.

Protocol software represents a key investment. It is essential you can reuse it to save money, reduce risk, speed time-to-market and respond to changing markets.