№

Section names

Watch

Total

Lectures

Practically.

1

Professional communication systems. Basic requirements for professional communication systems. Classification of mobile trunking systems. Brief description of mobile communication systems of TETRA, APCO 25 (ASTRA) and MPT1327 standards

4

4

-

2

Principles of construction of mobile trunking communication systems. Generalized schemes of communication networks. Topology of communication networks. Principles of construction of multi-zone systems. Intersystem communication channels.

2

2

-

3

Principles of construction of mobile trunking communication systems. Generalized schemes of communication networks. Topology of communication networks. Principles of construction of multi-zone systems. Intersystem communication channels.

2

2

-

4

Принципы построения систем транкинговой подвижной связи. Обобщенные схемы сетей связи. Топология сетей связи. Принципы построения многозоновых систем. Каналы межсистемной связи.

4

4

-

5

Network services of the TETRA and APCO standards. Data transfer modes in TETRA and APCO systems 25.

Parameters of packet data transmission. Direct communication mode DMO between radio stations in TETRA systems

2

2

-

6

Interfaces, channels, connection procedures, mobility. Interfaces of TETRA standard systems: radio interface, V+D protocol, direct communication mode DMO radio interface

2

2

-

7

Interfaces: wired communication, inter-system interface, communication with peripheral equipment, network management, interface for connecting to a PBX( PBX), public telephone network, digital network with service integration, network with packet switching.

2

2

-

8

Physical and logical channels in TETRA systems. Management methods. Control channels. The structure of the bundles. Mapping logical channels to physical channels. The second and third levels of the TETRA standard radio interface.

2

2

-

9

MM mobility management procedures. Random access protocols based on ALOHA algorithms. Group call procedures. Connection establishment time

2

2

-

10

Planning of trunking systems and communication networks and their effectiveness. Characteristics of trunking network efficiency and radio communication reliability. The capacity of the communication network. Determining the size of the zone.

2

2

-

11

Calculation and optimization of the energy of the zone. Calculation of radio signal propagation losses. Features of radio signal propagation in tunnel structures. Spectrum utilization efficiency

2

2

-

12

Information protection in TETRA standard systems. The structure of security systems. Security features in the TETRA standard. Ids in TETRA networks. Authentication. Secure connection and disconnection of terminals in TETRA networks

2

2

-

13

Encryption of information and signal messages. End-to-end encryption and radio interface encryption. Transfer of identification information between networks. Wearable digital radio stations DMR Hytera X1, X1i. Brief technical specifications.

2

2

-

14.

Wearable digital radio stations DMR Hytera X1, X1i. Brief technical specifications.

-

-

2

15.

Digital radio stations for business Hytera PD355, PD365. Purpose, Technical characteristics.

-

-

2

16.

Hytera PD 405, PD415 digital radio stations. Wearable digital radio stations DMR Hytera PD705, PD705G. Brief technical specifications. Stationary digital repeaters DMR Hytera RD985.

-

-

4

TOTAL

36

28

8