cellular communications," explained Leonid Konik.

[tanjimajuha20]

He said that about eight years ago, the idea of ​​using a single standard arose in the global PMR community. "The best solution was considered to be the LTE cellular standard, to which several functions had to be added for trunking communication tasks, in particular, group calling and push-to-talk (a button: you press it - you cayman islands whatsapp resource speak, and everyone else hears you, you release it - you listen). The developer of LTE - the global partnership 3GPP - added all these techniques to the standard specification. And all the world's manufacturers of equipment for cellular networks - Ericsson, Nokia, or Huawei - began to produce LTE equipment with these functions (sometimes it is called LTE Professional). In Russia, domestic developers of LTE equipment are only taking their first steps," Leonid Konik explained.

By the end of 2024, a draft national standard for DMR should appear in Russia - it is being developed by the Scientific Research Institute of Radio (NIIR). "As far as I know, the institute based this standard on the global trunking standard DMR - but it is narrowband, that is, it does not allow the transmission of heavy content - photos, audio, video - from the field. The data transfer rate in the DMR standard, as in TETRA, is measured in units of kbps," explained Leonid Konik.

NIIR CEO Oleg Ivanov told a ComNews correspondent that the joint solution of MegaFon and Trialinka is built on POC technology, and the professional mobile radio communication standard developed by NIIR is based on DMR technology. "These are completely different technologies with different functionality and application conditions. POC technology implies the use of the capabilities of a cellular network and provides professional mobile radio communication services exclusively in its coverage area. This is convenient, especially in the presence of dual terminals, but there are obvious limitations on the areas of application," said Oleg Ivanov.

He noted that the professional mobile radio communication standard being developed by NIIR takes into account all the requirements of relevant authorities and professional consumers, is compatible with the fleet of DMR radio stations and uses a patented domestic codec. "Deployment of a network based on the new standard does not require cellular network coverage, which makes it possible to organize communications at various industrial and transport facilities, in disaster areas, etc. Such a network is indispensable both for solving law enforcement problems and in special conditions," Oleg Ivanov explained.

Read also