Last Mile

Attention is drawn to the gap in the field of LAN-cable certification in the Russian Federation. The unregulated area is outlined, which gives an opportunity to appear on the market falsified products and allows unscrupulous manufacturers not to confirm the declared consumer properties of cable products.

Recently, the global telecoms community has started to define the prospects for the fixed works development in the form of the 6^th generation (F6G) networks concept. F6G networks differ from previous generations networks because they simultaneously support several key requirements of info-communication services, such as low latency of data transmission, high bandwidth of communication channel and provide wide opportunities for users to connect to the network. The paper discusses the conceptual foundations of F6G networks, presents services and promising optical technologies for implementation of these networks.

A summary of the ten main industry trends in Russian data centre industry as of the end of 2024 is given.

The standardisation of 6G communication networks by the International Telecommunication Union and the 3GPP Partnership Project is discussed. A timetable for the standardisation of 6G networks is presented. The views of vendors and researchers on the look and feel of 6G RANs and 6G Core radio access networks are presented.

The principles of realization of services intended for operative information exchange in critical situations are described. The predecessor of such services, known by the English term "Mission Critical Push to Talk" is focused on speech traffic. The paper discusses the qualitative evolution of this solution that is focused on the exchange of information of any kind that noticeably increases the value of the obtained information. A brief description of the hardware and software tools used, developed in the company where the authors of the paper work, is given. The directions of further research are discussed.

The possibility of rethinking the established code constructions is considered. The new modification of traditional cascade and generalized cascade codes is offered, that in turn creates essentially new family of codes and opens prospects for development of new decoding algorithms. Three examples of development of codes with error localization and results of their modelling are resulted. Directions of the further researches of new classes of codes are described.

When connecting a large number of peripherals, such as a stepper motor driver, to a microcontroller, often the number of required pins exceeds the number of available pins, which leads to a change of microcontroller type or the need to create groups of microcontrollers. A method of connecting 16 A4988 stepper motor drivers to an ESP32 microcontroller is proposed. An optimisation matrix of control outputs is used to achieve the result, thus avoiding the use of more expensive drivers using data interfaces to control an individual motor.