RU203893U1 - Routing module for radio relay communication line - Google Patents

Abstract

The utility model relates to radio relay communication lines. The technical result consists in reducing the need for maintenance of the routing module for the radio relay communication line. The routing module contains connected and mounted on a common board with an integrated power supply supporting PoE, a modem unit and a switch unit, while the switch unit is equipped with programming instructions to support protocols above the second layer of the OSI network model, the switch unit is associated with data transmission interfaces. At the same time, in the routing module, the modem unit is implemented on a digital signal processor, the switch unit is implemented on a network processor with an internal bus capable of processing data at a speed of up to 120 gigabits per second. 5 p.p. f-ly, 1 dwg.

Description

FIELD OF TECHNOLOGY

This utility model relates to microwave communication lines, namely, to a routing module for microwave communication lines, and can be used in the design of microwave radio relay modules with increased requirements for configuration flexibility, performance, and resistance to external influences.

DESCRIPTION OF PREVIOUS TECHNOLOGY

Close analogs of the claimed utility model are EtherHaul ™ 8010FX Siklu devices (access mode: https://www.siklu.com/introducing-the-new-10gbps-etherhaul-8010fx/, access date: August 2020) and iPASOLINK EX Advanced NEC (accessed at: https://www.nec.com/en/global/prod/nw/pasolink/products/ipasolinkEX_advanced.html, accessed August 2020).

The known devices use a switch of low performance and a relatively small set of functions for processing data streams in microwave links. In addition, the known solutions do not allow to upgrade the switch level to the L3 / L4 levels of the OSI model by replacing or updating software instructions. At the same time, the problem of creating a compact and inexpensive solution with L3 switches built into the radio relay module also remains unsolved. Usually switches of this level are separate devices that are installed in a 19 ”server rack in a dedicated server room. This also complicates the use of known solutions, since the specificity of radio relay communication lines imposes other requirements on the environment for using such devices, namely, independence from maintenance, resistance to natural influences, and compactness.

DISCLOSURE OF THE USEFUL MODEL

The technical problem underlying this utility model is to create a compact, monoblock, cost-effective radio relay module.

The technical result achieved by the implementation of the present utility model is to reduce the need for maintenance of the routing module for the radio relay communication line.

The technical result is achieved by the present utility model, in accordance with which a routing module for a radio relay communication line is declared, in which there are connected and mounted on a common board with an integrated power supply that supports PoE, a modem unit and a switch unit, while the switch unit is equipped with program instructions for Supporting protocols above the second layer of the OSI network model, the switch unit is associated with data transmission interfaces. Unlike the prototype in the claimed routing module, the modem unit and the switch unit are connected to the Host controller, while the modem unit is implemented on a digital signal processor capable of executing program instructions to support L2 +, L3-L4 protocols of the OSI network model, the switch unit is implemented on network processor with an internal bus capable of processing data at speeds up to 120 gigabits per second, the Host controller is equipped with software instructions for controlling the software installed in the modem and switch units.

Additional advantages and essential features of the present utility model can be presented in the following particular embodiments.

In particular, in the routing module, the program instructions of the modem unit are capable of realizing an algorithm for compensating for the nonlinearity of the transmission path.

In particular, in the module, the program instructions of the modem unit are able to implement an algorithm for correcting errors in signals.

In particular, in the module, the program instructions of the modem unit are capable of implementing the adaptive modulation and bandwidth algorithm.

In particular, in the module, the data interfaces of the switch unit are represented by 10GbE optical interfaces and 1GbE copper interface.

In particular, the body of the module is sealed.

A radio relay module is a routing module for a radio relay communication line combined in a single case and a transceiver for a radio relay communication line connected to it via the BB-IQ (Base Band IQ) interface. The combination of the two devices results in a radio relay module with some of the best performance in the industry and with improved performance at the same time. This is especially important, since radio relay modules are predominantly used in conditions of severe external natural influences, for example, on the roofs of buildings, where they are, in particular, exposed to weather conditions. In the present description, the terms "radio relay module" and "routing module" are used. To avoid possible confusion, note that these terms are not the same, and the routing module may be part of a radio relay module. The fragmentary use in the present description of the term "module" without specifying its functional purpose assumes that we are talking about a routing module.

PoE refers to the standardized Power over Ethernet technology whereby one device allows electrical energy to be transferred to another device along with data over a standard twisted pair Ethernet network.

The term "OSI networking model" refers to the standardized networking model of the OSI / ISO network protocol stack. Through this model, various network devices can communicate with each other. The model defines various levels of interaction between systems. Each level (denoted by the L prefix and model number) performs specific functions in this interaction.

The term "IQ-signal" refers to a digital or analog signal, presented in the form of in-phase I (English In-Phase) and quadrature Q (English Quadrature) components of the signal.

PREFERRED UTILITY MODEL IMPLEMENTATION

The description of the embodiment of the utility model can be used as an example for a better understanding of its essence and is presented with reference to one figure, which illustrates a block diagram of a routing module. At the same time, the details given below are intended not to limit the essence of the utility model, but to make it clearer.

In accordance with FIG., The routing module includes serially connected modem unit 1, Host controller 2, switch unit 3. The switch unit is connected to data transmission interfaces, which are represented by 10GbE SFP + 4 optical interfaces, and to 1GbE PHY 5 nodes. Each of nodes 5 are connected to the nodes of copper interfaces 6. Switch unit 3 is also connected to the DDR3 7 memory node and to the NAND FLASH 12 memory node. Modem unit 1 and switch unit 3 are also connected to the digital PLL node 9. The router module is powered by the power supply unit 10 The power supply 10 is designed with PoE support and is connected to the PoE node 11. Although FIG. the connection of the power supply unit 10 with other units and nodes of the module is not indicated explicitly, in addition to the PoE node 11, it should be understood that the power supply provides power to all units and nodes that require it. In various embodiments, the power supply 10 may provide power to other devices and nodes that are not part of the routing module. In this case, the power supply unit 10, the modem unit 1 and the switch unit 3 are mounted on one common board. This ensures the compactness of the device and the possibility of its execution as a monoblock in a single sealed case.

Modem unit 1 is implemented on the SoC MaxLinear digital signal processor, which makes it possible to implement an exhaustive list of digital processing functions to ensure the exchange of signals with an RF transceiver. Since it is assumed that a radio relay module using a routing module is intended for outdoor use, for example, on the roof of buildings, the choice of such a multifunctional processor is justified in order to reduce the requirements for maintenance and the frequency of replacement of components.

To ensure the possibility of using the routing module in radio relay communication lines, the program instructions of the modem unit 1 may be able to implement one or more of the following options:

an algorithm for compensating the nonlinearity of the transmitting path Predistortion, which allows to achieve high output power of the transceiver at high modulations (128-QAM);

an error correction algorithm for FEC signals, which improves the receiver's sensitivity at certain BERs;

an adaptive modulation algorithm and ACMB bandwidth, which automatically adjusts the radio operating mode to weather conditions, thereby increasing the availability of the microwave link.

Host-controller 2 is equipped with software instructions for controlling the software installed in the modem and switch units, ensuring the microclimate inside the module case, logging the module's software activity and providing a graphical administration interface.

Switch unit 3 is implemented on a network processor with an internal bus capable of processing data at speeds up to 120 gigabits per second. An example of such a processor is the carrier-grade Marvell processor. In the absence of such processing performance, the use of the routing module will be difficult or almost impossible in the case of use for a microwave link. Switch Box 3 is provided with programming instructions to support protocols above layer 2 of the OSI network model. In a particular embodiment, the modem unit is capable of supporting the implementation of the OSI L2 + protocols, i. E. functions of the second level and higher - switching and routing of packets with VLAN (Virtual Local Area Network), QoS (Quality of Service) support. In other particular embodiments, said processor allows executing program instructions to support L3-L4 protocols. This makes the module scalable and flexible.

The routing module is used as follows.

The declared routing module and transceiver for radio relay communication are enclosed in a single sealed case of the radio relay module. It is possible that both devices are made on a common board for them. In addition to the above-mentioned devices, the radio-relay module may include additional units required for the operation of the module. The radio relay module can be installed on the roof of the structure. PoE capability eliminates the need to run power cables to the module. The entire assembly can be powered via an Ethernet (twisted pair) cable. This allows you to simplify and reduce the cost of installation and configuration of the structure.

A standard Ethernet data stream with 10GbE / 1GbE / 100Base-Tx characteristics arrives at any of several input interfaces 4 and / or 6. In switch block 3, this stream is processed according to standard OSI protocols, including VLAN, QoS, LAG. Then the stream is transmitted to the modem unit 1, where it is encoded, divided into IQ channels, modulated, Predistortion and / or other available options are performed. Differential IQ signals are then fed to a radio relay transceiver. It should be taken into account that the promising scalability of the routing module allows, over time, to expand the set of algorithms and protocols for processing data at the software level by loading new software instructions through the Host controller without the need for physical improvement or replacement of the radio relay module equipment.

Thus, the claimed utility model allows the creation of highly integrated modules, including a modem, a power supply, and a managed L2 + switch. This helps to reduce the cost of high-speed radio relay bridges, their size, power consumption and weight.

Claims (6)

1. Routing module for microwave link, in which are installed connected and mounted on a common board with an integrated power supply supporting PoE, a modem unit and a switch unit, while the switch unit is equipped with software instructions for supporting protocols above the second layer of the OSI network model, the unit switch is connected to data transmission interfaces, characterized in that the modem unit and the switch unit are connected to the Host controller, while the modem unit is implemented on a digital signal processor capable of executing software instructions to support L2 +, L3-L4 protocols of the OSI network model, unit The switch is implemented on a network processor with an internal bus capable of processing data at a speed of up to 120 gigabits per second; the Host controller is equipped with software instructions for controlling the software installed in the modem and switch units. 2. The module of claim 1, wherein the program instructions of the modem unit are capable of implementing an algorithm for compensating for the nonlinearity of the transmission path. 3. The module of claim 1, wherein the program instructions of the modem unit are capable of implementing an algorithm for correcting errors in signals. 4. The module of claim 1, wherein the modem unit software instructions are capable of implementing an adaptive modulation and bandwidth algorithm. 5. The module of claim 1, wherein the data interfaces of the switch unit are 10GbE optical interfaces and 1GbE copper interfaces. 6. The module according to claim 1, the body of which is sealed.

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