EA037997B1 - Multichannel communication device - Google Patents

Abstract

The invention relates to multichannel communication devices and can be used to form wireless communication lines providing transmission of the E1, Ethernet signals within the STM-1 synchronous transport modules. A multiplexer is composed of a multiplexing/demultiplexing module (1) bi-directionally linked with control and monitoring module (2), the first E1 module (3), the second E1 module (4), a module of a remote control-remote signaling (RC-RS) channel control (5), the first STM-1 module (6), the second STM-1 module (7), a module of the STM-1 dual reception (8), the first Ethernet module (9), the second Ethernet module (10), an aggregation module (11), a stream rate adaptation module (12). The first Ethernet module (9) is bi-directionally linked with the aggregation module (11) and the stream rate adaptation module (12), that is bi-directionally linked with the second Ethernet module (10). The module of STM-1 dual reception (8) is bi-directionally linked with the first STM-1 module (6). The module of the RC-RS channel control (5) is bi-directionally linked with a RC-RS module (13). Bi-directional links are implemented via a data bus. The technical effect of the invention consists in the provided possibility of signal transmission over Ethernet, E1, STM-1, RC-RS channels to two independent transceivers and with additional functionalities, such as increased throughput, increased noise immunity, and fault-tolerance of the Ethernet channel, a possibility of STM-1 channels redundancy to improve the reliability of data transfer in case of faults in the linear part of network and faults of assemblies of said device.

Description

Multi-channel communication device

The invention relates to multi-channel communication devices and can be used to form wireless communication lines providing transmission of E1, Ethernet signals in the structure of STM-1 synchronous transport modules.

E1 stream or E1 signal stream is a digital information transmission standard that is a multichannel system of thirty two separate channels. Thirty - for direct transmission, and the remaining two - as auxiliary (service), providing synchronization between the sending and receiving parties (see, for example, on the Internet at the link https://fb.ru/article/333785/e-potok —Chto-eto-takoe, publication date 08/11/2017).

Known device SMA-4 by GPT, which implements the STM-4 multiplexer, including the main tribe unit (working) and a backup tribe unit with a set of electrical ports for receiving input streams of various speeds, a multiplexer and a switch for multiplexing, switching and flow control, control interfaces, control and service channels. (NN Slepov. Synchronous digital networks SDH. M. Eco-trends, 1999, p. 65).

The device does not provide for the implementation of the operation mode of the E1 channel, the TU-TC channel, the STM-1 synchronous transport layer, the Ethernet channel with an increase in its throughput, an increase in noise immunity and fault tolerance.

Known multiplexer (patent No. 107604, publ. 08/20/2011), including a platform with system buses, to which are connected modules for the formation of channels STM-1 with the function of receiving / transmitting a signal, a control and monitoring module, made with the ability to monitor and configure its own parameters and parameters of the modules, an Ethernet channel module for receiving / transmitting signals in the Ethernet protocol, a channel multiplexing module, an STM-4 module for receiving / transmitting an optical signal with a transmission rate of 622.080 Mbit / s, a switching and synchronization module intended for synchronization equipment and provision of fully accessible non-blocking cross-connect.

This device does not implement the STM-1 channel redundancy technology to increase the reliability of data transmission in cases of a malfunction in the linear part of the network and in case of device nodes failures, the possibility of increasing the bandwidth, increasing the noise immunity and fault tolerance of the Ethernet channel is not implemented, the receive / transmission of the TU-TS channel.

The closest device to the claimed device in terms of a set of features is a synchronous multiplexer (patent No. 112801, published on January 20, 2012), taken as a prototype, including a platform with system buses, to which the E1 module is connected with the function of receiving / transmitting and generating E1 signals , optical and electrical modules STM-1 with the function of receiving / transmitting and forming channels, a control and monitoring module intended for monitoring and configuring own parameters and parameters of modules, an Ethernet module that provides reception / transmission of signals via the Ethernet protocol, an STM-4 module, a switching and synchronization module, an STM-16 module, and a multiplexing / demultiplexing module that is not connected to any system bus and provides multiplexing of output signals at transmission and reverse demultiplexing of input signals at reception.

The prototype does not implement the STM-1 channel redundancy technology to increase the reliability of data transmission in cases of a malfunction in the linear part of the network and in case of device nodes failures, the possibility of increasing the throughput, increasing the fault tolerance and noise immunity of the Ethernet channel is not implemented, the receive / transmit operation mode is not implemented channel TU-TS.

The technical result of the invention is to provide the possibility of transmitting signals via Ethernet, E1, STM-1, TU-TC channels to two independent transceiver devices and with additional functionality, expressed by an increase in bandwidth, increased noise immunity and fault tolerance of the Ethernet channel, the possibility of redundancy of STM-1 channels to increase the reliability of data transmission in cases of malfunctions in the linear part of the network and in case of failures of the device nodes.

The specified technical result is achieved by the fact that the multichannel communication device, hereinafter also called multiplexer, consists of a multiplexing and demultiplexing module (hereinafter also a multiplexing / demultiplexing module), a first E1 signaling module (hereinafter also the first E1 module), a first Ethernet module, a first module STM-1 signal generation (hereinafter also the first STM-1 module), a command and control module, a second E1 signaling module (hereinafter also a second E1 module), a second Ethernet module, a second STM-1 signal generation module (hereinafter also a second STM module -1), STM-1 dual reception module, telecontrol and telesignalization module (hereinafter also TU-TS), channel control module TU-TS, aggregation module, stream rate adaptation module, while the multiplexing / demultiplexing module is bilaterally connected via the data bus to control and monitoring module, via the data bus with the first STM-1 module, via the data bus with the second mod Ulem STM-1, on the data bus with

- 1 037997 by the STM-1 dual reception module, via the data bus with the first E1 module, via the data bus with the second E1 module, via the data bus with the first Ethernet module, via the data bus with the second Ethernet module, via the data bus with the aggregation module, via data bus with the flow rate adaptation module, via the data bus with the TU-TC channel control module, the first Ethernet module is bilaterally connected via the data bus with the aggregation module and via the data bus with the flow rate adaptation module, which is bilaterally connected via the data bus with the second module Ethernet, the STM-1 dual reception module is bilaterally connected via the data bus to the first STM-1 module, the TUTS channel control module is bilaterally connected via the data bus to the TU-TS module.

The invention is illustrated in the drawing, which shows a block diagram of the multiplexer.

The multiplexer consists of a multiplexing / demultiplexing module 1, two-way connected to the control and monitoring module 2, the first E1 module 3, the second E1 module 4, the channel control module TU-TC 5, the first STM-1 module 6, the second STM-1 module 7, dual reception module STM-1 8, the first Ethernet module 9, the second Ethernet module 10, the aggregation module 11, the flow rate adaptation module 12. The first Ethernet module 9 is bilaterally connected to the aggregation module 11 and the flow rate adaptation module 12, which is bilaterally connected to the second Ethernet module 10. Module of double reception STM-1 8 is two-way connected with the first module STM-1 6. Channel control module TU-TC 5 is two-way connected with module TU-TC 13. Two-way communications are carried out via the data bus.

The multiplexer works with two independent groups of user interfaces (not shown in the drawing), operating on two independent transceiver devices (ISD) (not shown in the drawing), and provides reception and transmission of subscriber traffic via E1, Ethernet, STM-1 channels, as well as channel TU-TS.

The multiplexing / demultiplexing module 1 provides multiplexing of the incoming continuous streams E1, STM-1, TU-TC, Ethernet, control commands into two multicast streams for transmission to two PPUs and demultiplexing the multicast streams by performing inverse operations.

Control and monitoring module 2 provides control and monitoring of the multiplexer and its modules locally and remotely with the setting of operating modes.

The first and second modules E1 3, 4 provide reception / transmission, formation of continuous streams and speed equalization of the signals of the E1 channels. Each of the modules 3, 4 provides the operation of 16 independent E1 channels.

The TU-TS 13 module provides reception / transmission, signal speed equalization and the formation of a continuous flow of the TU-TS channel.

The channel control module TU-TS 5 provides the transmission of a bifurcated stream of the TU-TS for subsequent transmission in order to form two group streams, in the opposite direction it provides reception of two streams from two shafts and the choice of the best stream in terms of quality.

The first and second STM-1 modules 6, 7 provide reception / transmission, formation of continuous streams and speed equalization of STM-1 optical signals for operation over fiber-optic lines.

The STM-1 8 dual reception module provides the device operation in the channel redundancy mode to organize the flow protection mode in the event of interference or breakdown of one of the two communication lines (1 + 1 mode), splits one stream into two time-synchronized streams for transmission into two ISP. In the opposite direction, it selects the best quality stream and switches to the best quality channel in real time without interruption and loss of communication quality, thereby increasing the fault tolerance and noise immunity of the STM-1 channel.

The first and second Ethernet 9.10 modules provide transmit / receive, continuous streaming and speed equalization of Ethernet channel signals.

Aggregation module 11 provides 2 + 0 operation by splitting one higher speed Ethernet link into two lower speed Ethernet links and vice versa combining two lower speed Ethernet links into one with double the data rate, thereby increasing the bandwidth of the Ethernet channel.

The stream rate adaptation module 12 provides a decrease in the transmission rate of Ethernet streams with a decrease in the quality of the communication line, thereby supporting data transmission without interrupting the connection, achieving an increase in the noise immunity of the Ethernet channel. While improving the quality of the communication line, it provides an increase in the transfer rate of Ethernet streams.

The multiplexer works as follows. From the user interfaces through the E1 channels, information signals are sent to the first module E1 3 and the second module E1 4, where they are equalized in speed, are formed into continuous streams E1, which are sent via the data bus to the multiplexing / demultiplexing module 1 to be included in two group streams for subsequent transfer to two PPUs. When demultiplexing the group streams received from the PPU, the dedicated E1 streams are sent via the data bus to the first E1 module 3 and the second E1 module 4, where they are converted and rate-aligned for subsequent transmission to user interfaces.

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The TU-TS module 13 receives the signals of the TU-TS channel, equalizes in speed and generates a continuous stream of TU-TS, which is fed via the data bus to the channel control module TU-TS 5, where it is divided into two TU-TS streams, which are on the bus data are transmitted to the multiplexing / demultiplexing module 1 for inclusion in two group streams for subsequent transmission to two PPUs. When demultiplexing the group streams received from the PPU, the dedicated TU-TS flows via the data bus are received by the TU-TS 5 channel control module, where the best quality TU-TS stream is selected, which is fed to the TU-TS 13 module for conversion and transmission to the user interface.

In the independent operation mode (in the absence of a command to perform operation in 1 + 1 mode from the control and monitoring module 2), the STM-1 channel signals from two user interfaces are received on the first and second STM-1 modules 6, 7, where they are equalized in speed and are formed into continuous streams STM-1, which are fed via the data bus to the multiplexing / demultiplexing module 1 to be included in two group streams for subsequent transmission to two PPUs. When demultiplexing two group streams received from the PPU, the dedicated STM1 streams via the data bus arrive at the first STM-1 module 6 and the second STM-1 module 7, where they are converted, rate-aligned and transmitted to user interfaces. When a command is received from the control and monitoring module 2 to perform work in the 1 + 1 mode, the STM-1 channel signal from one user interface is received by the first STM-1 module 6, the second STM-1 module 7 is in idle mode. From the first STM-1 6 module, the generated STM-1 stream is transmitted via the data bus to the STM-1 8 dual receive module, where it is divided into two identical time-synchronized STM-1 streams, which are sent via the data bus to the multiplexing / demultiplexing module 1 for inclusion in two group streams for subsequent transmission to two PPUs. When demultiplexing the two group streams received from the PPU, the dedicated STM1 streams are sent via the data bus to the STM-1 8 dual reception module, where the best quality is selected from the two STM-1 streams, which is transmitted via the data bus to the first STM-1 6 module for further transfer to the user interface.

In the independent operation mode (in the absence of a command to perform operation in 2 + 0 mode from the control and monitoring module 2), the Ethernet channel signals from two user interfaces are received by the first and second Ethernet modules 9, 10, where they are equalized in speed, formed into continuous Ethernet streams and the data bus is fed to the multiplexing / demultiplexing module 1 to be included in two group streams for subsequent transmission to two PPUs. When demultiplexing the two group streams received from the PPU, the dedicated Ethernet streams are sent via the data bus to the first Ethernet module 9 and the second Ethernet module 10, where they are converted and split into Ethernet packets for transmission to user interfaces. Upon receipt from the control and monitoring module 2 of the command to perform work in the 2 + 0 mode, the first Ethernet module 9 receives signals via the Ethernet channel at a double speed, the second Ethernet module 10 is in an idle mode. In the first Ethernet module 9, the signal is formed into a continuous Ethernet stream and is sent via the data bus to the aggregation module 11, where it is divided into two independent Ethernet streams, which are sent via the data bus to the multiplexing / demultiplexing module 1 to be included in two multicast streams for subsequent transmission to two PPU. When demultiplexing two group streams received from the PPU, two dedicated Ethernet streams are sent via the data bus to the aggregation module 11, where they are combined into one Ethernet stream with a double speed. The double rate Ethernet stream goes through the first Ethernet module 9 to the user interface.

When the quality of the communication line decreases, information from the multiplexing / demultiplexing module 1 via the data bus goes to the flow rate adaptation module 12. The flow rate adaptation module 12 via the data bus transmits commands to reduce the Ethernet flow rate to the first Ethernet module 9 and the second Ethernet module 10, where the speed of Ethernet streams is reduced to the required one to continue the transmission of Ethernet streams without breaking the communication line. When improving the quality of the communication line on a command from the flow rate adaptation module 12, the first Ethernet module 9 and the second Ethernet module 10 increase the transmission rate of Ethernet streams.

Claims (1)

CLAIM A multichannel communication device containing a multiplexing and demultiplexing module, a first E1 signal transmission module, a first Ethernet module, a first STM-1 channel shaping module, a control and monitoring module of a multichannel communication device, characterized in that it is equipped with a second E1 signal transmission module, a second Ethernet module , the second STM-1 channel shaping module, the STM-1 dual reception module, the telecontrol and telesignalization module (TU-TC), the TU-TC channel control module, the aggregation module, the flow rate adaptation module, while the multiplexing / demultiplexing module is bilaterally connected via data bus with command and control module, data bus with first channelization module - 3 037997 STM-1, via the data bus with the second STM-1 channel shaping module, via the data bus with the STM-1 dual receive module, via the data bus with the first E1 signaling module, via the data bus with the second E1 signaling module, via the data bus with the first Ethernet module, via the data bus with the second Ethernet module, via the data bus with the aggregation module, via the data bus with the stream rate adaptation module, via the data bus with the TU-TC channel control module, and the first Ethernet module is bi-directionally connected via the data bus with the aggregation module and via the data bus with the flow rate adaptation module, which is bilaterally connected via the data bus with the second Ethernet module, the STM-1 dual reception module is bilaterally connected via the data bus with the first STM-1 channel shaping module, the channel control module TU-TC is bilaterally connected via the data bus with the TU-TS module.