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LMR Interoperability-Role of RoIP - Assessment Markets and Technologies
PracTel Inc., April 2010, Pages: 76+
This report addresses critical to the Land Mobil Radio (LMR) infrastructure issue of interoperability between different types and makes of network equipment. Though the main focus was on Public Safety Radio (PSR), the majority of results can apply to a wide area of LMR applications; however, for PSR interoperability becomes a necessity, which is mandated by governmental and standard organizations all around the globe.
Existing radio communications systems employed in public safety applications are a disparate mix of equipment and technologies operating at frequencies ranging from 25 MHz to 4.9 GHz; and using radios ranging from basic analog FM to VoIP. Such a situation created a frustrating and dangerous problem in that first responders from different organizations are often unable to communicate effectively, which can make their efforts inefficient.
One more challenge is that responders now need to communicate with devices other than LMR systems, including Sprint/Nextel PTT phones, IP phones, PCs and other. Reliable communications technology is no longer an optional or a luxury item for emergency response. In an increasing number of cases, technology is vital to the situational awareness, scalability, and efficiency of incident response.
A cost to replace all existing emergency radio systems with interoperable ones only in the U.S. estimated between $30 billion and $40 billion (not including the network design and planning). That is why it is very important to develop methods that support present communications means and allow their compatibility – by the analysts’ estimates, billions of dollars can be saved doing this.
This report addresses Public Safety Communications (PSC) interoperability progress and problems in North America. It would be unfair to say that nothing was done to insure first responder’s communications interoperability. The government is spending billions of dollars on research and development in this area; some states have already implemented, or are in the process of implementation of the state-wide PSC networks. Some progress is made in the design of the conceptual view of the national PSC network; but altogether the time between new advanced technologies development and radio commercialization is long and unacceptable.
The report provides a systematic approach to define and analyze interoperability methods. Particular, it specifies LMR interoperability categories as following:
- IP-based methods-RoIP
- Standards-P25
- Mesh-based methods
- Satellites
- Private networks
- Radio methods
- SDR.
This report concentrates solely on RoIP markets and technologies. RoIP, currently, is a predominant method to create an intelligent LMR infrastructure; this method is cost-efficient and technologically advanced. Its core functioning – converting data, audio and video to IP packets and transfer them all around the private network (or the Internet) regardless source and destination types of equipment- mitigates a problem of interoperability for LMRs. It also includes a wider area of users, such as PCs, PDAs and other; essentially, it is possible to make any device that understands the language of IP/TCP to communicate in a LMR network.
Though dealing with standards that are well established (a class of IP/TCP protocols), RoIP, so far, left undeveloped standardization of LMR signaling (PTT and other) when radios are operating in the IP environment; and this can limit a degree of interoperability.
The report analyzes details of the RoIP technology and markets, including the RoIP industry.
Target Audience:
The report is written to a wide audience of technical and marketing specialists that are working in Public Safety Communications. Its goal is to attract the attention of these specialists to the issue of LMR interoperability; and RoIP as an advanced method to mitigate problems in a public safety communications network that may include different technologies.
LMR vendors can find in this report the industry analysis and survey of competing manufacturers.
Research Methodology:
Considerable research was done using the Internet. Information from various Web sites was studied and analyzed; evaluation of publicly available marketing and technical publications was conducted. Telephone conversations and interviews were held with industry analysts, technical experts and executives. In addition to these interviews and primary research, secondary sources were used to develop a more complete mosaic of the market landscape, including industry and trade publications, conferences and seminars.
The overriding objective throughout the work has been to provide valid and relevant information. This has led to a continual review and update of the information content.
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