SU1614116A1 - Communication station with adaptive commutation of signals - Google Patents

Abstract

The invention relates to communication technology and can be used to construct adaptive communication lines. The goal is to improve the quality of information transmission through channels with a higher priority. For this purpose, an overhead signal separation unit 10, a ranking unit 11, a signal address selection unit 12, transmitting a distributor 14 channels, an encoder 15, and a service signal generation unit 8 are introduced. 1 il.

Description

The invention relates to an apparatus used to build adaptive communication lines with frequency division channels operating under conditions of varying the quality of information transmission.

The aim of the invention is to improve the quality of information transmission over higher priority channels.

The drawing shows a structural electrical circuit of the station ..

Station 1 contains a frequency duplexer 2 with an antenna, transmitter 3, receiver 4, channel separation equipment 5, channel quality meters 6, output switch 7, service signal generation unit 8, compaction equipment 9, service signal separation unit 10, ranking unit 11 , a signal address selection block 12, an input switch 13, a transmitting distributor 14 channels, an encoder 15, a priority setting block 16, a memory block 17, a decoder 18, a receiving distributor 19 channels. The output switch 7 consists of a set of channel switches 20 and 21.

The input switch 13 consists of a set of channel switches 22 and 23. Communication between several stations, such as station 1, is carried out using a repeater.

The device works as follows.

Let us consider the operation of the proposed device by the example of the functioning of a radio link with the two stations named and an onboard repeater. The drawing shows the construction of station only 1. Any station-correspondent has the same construction.

At station 1, the signal of the correspondent station passed through the repeater is received by the antenna in the frequency duplex 2 signal alignment and enters the receiver 4, where it is amplified, converted and demodulated. The output group of the receiver 4 goes to the channel separation equipment 5, from where the channel signals are given to the subscriber (pass through the output switch 7} and go to the meters 6 to determine the reception quality of the channels. The output signals of the meters 6 are sent to the station 8 generating signal - to the correspondent of quality indicators for receiving information in all subscriber channels.In addition, signals from subscribers of station 1 are fed through the input switch 13 to the information inputs of the equipment 9 upl tneni for transmitting the signals to subscribers of the correspondent station.

The signal of the state and the number of the channel switch 22 and 33, supplied from the transmitting distributor 14. enters through the encoder 15 to the block 8, where

he, together with the signals of the meters 6 forms a service signal. This signal is transmitted to the correspondent station. Since the station correspondent works in the same way. then she sends by

0 to the service channel, a similar service signal, which contains information about the quality of reception of station 1 on it and the position of each channel switch (similar to 22 and 23) of the input switch 13.

Thus, at station 1, at the first output of the service information distribution unit 10, the reception quality signals of the subscriber station 1 information are allocated at

0 of the correspondent station, and at the second output of block 10, signals about the status of each channel switch 20 and 21 of the output switch 7. The signals from the second output of block 10 are decoded in decryption module 18, to obtain signals for selecting the number of the channel switch (for example, 20) and its states, i.e. connecting the subscriber with this number to the necessary information channel of the equipment 5 times0 divisions, i.e. the subscribers of station 1 communicate with the subscribers of the correspondent station through the channel of the compaction and separation equipment, the number of which is given by the signal of the transmitting distributor 14 (on both

5 stations x).

From the first output of block 10, reception quality signals are fed to ranging block 11, which determines the sequence number of the channels with the best performance. For example, the fifth channel has the best reception quality from all the channels, the sixth channel - the best reception quality of all the others, the eighth channel - the best, the quality from all the others, etc. The ranged channel numbers are fed to the control (first) input of the channel address selection unit 12. The second input of block 12 is supplied from a priority memory 17 of the subscriber table, compiled in order of decreasing importance (priority) of the subscriber. This table is pre-loaded into memory 17 using priority setting block 16. Block 12 for the most important subscriber assigns a channel with the best characteristics, for the second in the priority list, assigns the next best channel, etc. The signal for assigning a list of ranked channels and a list of priorities comes from the output of block 12 to the transmitting distributor 14, which specifies the address

each channel switch (for example. 22) and its state in the input switch 13.g

At the correspondent station, a similar arrangement of subscribers via communication channels and transfer of subscriber addresses to station 1 occurs. Thus, if among the communication channels between two stations, a new channel with the best reception quality is received, then using blocks 11 12 and 14 input the switch 13 connects this channel to the subscriber with the highest priority, and using blocks 15, 18 and 19, the output switch 7 connects this channel to the correspondent of this subscriber.

Claims (1)

Thus, additionally adding new units to the control system of the communication system allows you to select the best reception channels and give them to the most important correspondents who are first on the list of priorities, which creates a positive effect when the reception quality in the first-priority channels improves. . Since, in a communication system through a repeater, the difference in reception quality in different channels of the decompression equipment 5 reaches 10 dB, depending on the conditions of communication, aging of elements and changes in external conditions, the choice of the best channels to provide them to the most common subscribers practical value. Claims of Invention A communications station with adaptive circuit switching comprising but connected compaction equipment, a transmitter, a frequency duplexer connected to an antenna, a receiver, channel separation apparatus and channel quality meters, characterized in that, in order to improve the quality of information transmission through the channels with priority, the serially connected service signal separation unit the ranging unit, the address selection signal, the transmitting channel distributor, the encoder and the service signal generation unit whose output is connected to the service input of the compaction equipment, sequentially connected decoder and receiver channel allocator, serially connected priority setting unit and memory unit, the output of which is connected to the second input of the signal address selection unit, the input switch, whose information outputs are connected to the corresponding inputs of the compaction equipment, and the control input to the output of the transmitting the channel distributor, the output switch, whose inputs are connected to the outputs of the decompressor, and the control input to the output of the receiver channel distributor, The dividing block of the service channels is connected to the corresponding output of the channel separation equipment, and the second output is connected to the input of the decoder, the outputs of the channel quality meters are connected by the corresponding inputs of the signal shaping unit.