CN112118068A - State monitoring method, device, equipment and storage medium of forwarding network - Google Patents
State monitoring method, device, equipment and storage medium of forwarding network Download PDFInfo
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- CN112118068A CN112118068A CN201910537416.XA CN201910537416A CN112118068A CN 112118068 A CN112118068 A CN 112118068A CN 201910537416 A CN201910537416 A CN 201910537416A CN 112118068 A CN112118068 A CN 112118068A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0254—Optical medium access
- H04J14/0272—Transmission of OAMP information
Abstract
The invention discloses a method, a device, equipment and a storage medium for monitoring the state of a forwarding network, relates to the technical field of communication, and aims to solve the problem that the existing forwarding network monitoring scheme causes inflexible deployment of the forwarding network. The method comprises the following steps: sending a first control optical signal to a passive wavelength division multiplexing module, wherein the first control optical signal is transmitted in the forwarding network through a control wavelength; monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength; and determining the state of the forwarding network according to the monitoring condition of the second control optical signal. The embodiment of the invention can improve the flexibility of the deployment of the forwarding network.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for monitoring a status of a forwarding network.
Background
The 5G network needs to support multiple services and application scenarios, such as Enhanced Mobile Broadband (eMBB) services with higher bandwidth and lower time delay, mass internet of things (mtc) services supporting mass user connection, Ultra Reliable and Low Latency (urlc) services with Ultra high reliability and Ultra Low time delay, and Ultra Reliable and Low delay Communication. It is expected that in the 5G era, many new user applications will be introduced.
In 4G, a base station is mainly deployed with a drain RAN (Distributed RAN, Distributed Radio access network), and a fronthaul network is usually connected directly with an RRU (Remote Radio Unit) and a BBU (Building base band Unit) by using an optical fiber. With the arrival of 5G, the forwarding network will gradually utilize the CRAN (Centralized RAN) mode for carrying. The 5G fronthaul network is based on AAU (Active Antenna Unit) and DU (distributed Unit) + CU (Centralized Unit) architecture. A DU + CU in the CRAN scenario will connect multiple wireless stations (6-8). In this scenario, 12 fibers are required for each wireless station, with significant fiber consumption for the fronthaul scenario.
In order to solve the problem of large-scale use of the fronthaul optical fiber, wavelength division multiplexing equipment can be used in the fronthaul network, and the fronthaul optical fiber multiplexing is realized through wavelength multiplexing and wavelength division multiplexing. However, the existing solution for managing and controlling the forwarding network has certain requirements on the machine room, so that the deployment of the forwarding network is not flexible enough.
Disclosure of Invention
The embodiment of the invention provides a method, a device, equipment and a storage medium for monitoring the state of a forwarding network, which aim to solve the problem of inflexible deployment of the forwarding network caused by the existing forwarding network monitoring scheme.
In a first aspect, an embodiment of the present invention provides a method for monitoring a status of a forwarding network, which is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the active wavelength division multiplexing module is arranged at the DU side; the open wavelength division multiplexing system further includes: the passive wavelength division multiplexing module is arranged on the AAU side; the method comprises the following steps:
sending a first control optical signal to the passive wavelength division multiplexing module, wherein the first control optical signal is transmitted in the forwarding network through a control wavelength;
monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
and determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
Wherein, in a case that the fronthaul network transmits a service signal, the sending a first control optical signal to the passive wavelength division multiplexing module includes:
multiplexing the first management and control optical signal and the service signal, wherein the management and control wavelength is different from a service wavelength for transmitting the service signal;
and sending the multiplexed signal to the passive wavelength division multiplexing module.
Wherein the determining the state of the forwarding network according to the monitoring condition of the second control optical signal includes:
determining that the state of the forwarding network is a fault state under the condition that the second control optical signal is not received; or
And under the condition that the second control optical signal is received, determining the state of the forwarding network according to the second control optical signal.
Wherein, in a case where the second management control optical signal is received, determining a state of the forwarding network according to the second management control optical signal includes:
demultiplexing the signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted by the control wavelength;
and determining the state of the forwarding network according to the second control optical signal.
In a second aspect, an embodiment of the present invention provides a method for monitoring a status of a forwarding network, where the method is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the passive wavelength division multiplexing module is arranged at the AAU side; the open wavelength division multiplexing system further includes: the active wavelength division multiplexing module is arranged at the DU side; the method comprises the following steps:
receiving a first control optical signal sent by the active wavelength division multiplexing module, wherein the first control optical signal is transmitted in the forwarding network through a control wavelength;
and sending a second control optical signal to the active wavelength division multiplexing optical module, wherein the second control optical signal is transmitted in the fronthaul network through the control wavelength.
Wherein the sending a second managed optical signal to the active wavelength division multiplexing optical module includes:
demultiplexing the signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted by the control wavelength;
identifying the control wavelength according to the first control optical signal;
and sending the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
Wherein, in a case that the fronthaul network transmits a service signal, the sending the second control optical signal to the active wavelength division multiplexing optical module includes:
multiplexing the second control optical signal and the service signal, wherein the control wavelength is different from a service wavelength for transmitting the service signal;
and sending the multiplexed signal to the active wavelength division multiplexing module.
In a third aspect, an embodiment of the present invention provides a state monitoring apparatus for a forwarding network, where the state monitoring apparatus is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the active wavelength division multiplexing module is arranged at the DU side; the open wavelength division multiplexing system further includes: the passive wavelength division multiplexing module is arranged at the AAU side of the active antenna unit; the device comprises: a processor and a transceiver;
the transceiver is configured to send a first control optical signal to the passive wavelength division multiplexing module, where the first control optical signal is transmitted in the fronthaul network through a control wavelength; monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
and the processor is used for determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
The transceiver is further configured to multiplex the first control optical signal and the service signal and send a multiplexed signal to the passive wavelength division multiplexing module when the fronthaul network transmits the service signal; wherein the control wavelength is different from a service wavelength for transmitting the service signal.
The processor is further configured to determine that the state of the forwarding network is a fault state when the second control optical signal is not received; or determining the state of the forwarding network according to the second control optical signal under the condition that the second control optical signal is received.
The processor is further configured to demultiplex a signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted through the control wavelength;
and determining the state of the forwarding network according to the second control optical signal.
In a fourth aspect, an embodiment of the present invention provides a status monitoring apparatus for a forwarding network, where the status monitoring apparatus is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the passive wavelength division multiplexing module is arranged at the AAU side; the open wavelength division multiplexing system further includes: the active wavelength division multiplexing module is arranged at the DU side; the device comprises: a processor and a transceiver;
the transceiver is configured to receive a first control optical signal sent by the active wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength; and sending a second control optical signal to the active wavelength division multiplexing optical module, wherein the second control optical signal is transmitted in the fronthaul network through the control wavelength.
The transceiver is further configured to demultiplex a signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted through the control wavelength; identifying the control wavelength according to the first control optical signal; and sending the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
The transceiver is further configured to multiplex the second control optical signal and the service signal and send a multiplexed signal to the active wavelength division multiplexing module when the fronthaul network transmits the service signal; wherein the control wavelength is different from a service wavelength for transmitting the service signal.
In a fifth aspect, an embodiment of the present invention provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;
the processor configured to read a program in the memory to implement the steps in the method according to the first aspect; or to implement a step in a method according to the second aspect.
In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing a computer program, which when executed by a processor implements the steps in the method according to the first aspect; or to implement a step in a method according to the second aspect.
In a seventh aspect, an embodiment of the present invention provides a state monitoring apparatus for a forwarding network, where the state monitoring apparatus is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the active wavelength division multiplexing module is arranged at the side of the distribution unit DU; the open wavelength division multiplexing system further includes: the passive wavelength division multiplexing module is arranged at the AAU side of the active antenna unit; the device comprises:
a first sending module, configured to send a first control optical signal to the passive wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength;
the monitoring module is used for monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
and the determining module is used for determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
Wherein the first transmitting module comprises:
a multiplexing sub-module, configured to multiplex the first control optical signal and the service signal, where the control wavelength is different from a service wavelength for transmitting the service signal;
and the sending submodule is used for sending the multiplexed signal to the passive wavelength division multiplexing module.
Wherein the determining module comprises:
the first determining submodule is used for determining that the state of the forwarding network is a fault state under the condition that the second control optical signal is not received; or
And the second determining submodule is used for determining the state of the forwarding network according to the second control optical signal under the condition that the second control optical signal is received.
Wherein the second determination submodule includes:
the demultiplexing unit is configured to demultiplex a signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted through the control wavelength;
and the determining unit is used for determining the state of the forwarding network according to the second control optical signal.
In an eighth aspect, an embodiment of the present invention provides a status monitoring apparatus for a forwarding network, where the status monitoring apparatus is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the passive wavelength division multiplexing module is arranged at the AAU side; the open wavelength division multiplexing system further includes: the active wavelength division multiplexing module is arranged at the DU side; the device comprises:
a first receiving module, configured to receive a first control optical signal sent by the active wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength;
the first sending module is configured to send a second control optical signal to the active wavelength division multiplexing optical module, where the second control optical signal is transmitted in the fronthaul network through the control wavelength.
Wherein the first transmitting module comprises:
the demultiplexing submodule is used for demultiplexing the signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted by the control wavelength;
the processing submodule is used for identifying the control wavelength according to the first control optical signal;
and the sending submodule is used for sending the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
Wherein the transmission submodule includes:
a multiplexing unit, configured to multiplex the second control optical signal and the service signal when the forwarding network transmits a service signal, where the control wavelength is different from a service wavelength for transmitting the service signal;
and the sending unit is used for sending the multiplexed signal to the active wavelength division multiplexing module.
In the embodiment of the present invention, an active wavelength division multiplexing module in an open wavelength division multiplexing system sends a first control optical signal to a passive wavelength division multiplexing optical module in the system by using a control wavelength, and monitors a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength, so as to determine a state of the fronthaul network according to a monitoring condition of the second control optical signal. Because the passive wavelength division multiplexing module is adopted at the AAU side, the passive wavelength division multiplexing module does not need to be provided with additional power supply by utilizing the embodiment of the invention, thereby improving the flexibility of the deployment of the forwarding network.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of an open wavelength division multiplexing system according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating management and control of a forwarding network according to an embodiment of the present invention;
fig. 3 is one of flowcharts of a status monitoring method of a forwarding network according to an embodiment of the present invention;
fig. 4 is a second flowchart of a status monitoring method of a forwarding network according to an embodiment of the present invention;
fig. 5 is one of the structural diagrams of a status monitoring apparatus of a forwarding network according to an embodiment of the present invention;
fig. 6 is a second structural diagram of a status monitoring apparatus of a forwarding network according to an embodiment of the present invention;
fig. 7 is one of the structural diagrams of a communication apparatus provided by the embodiment of the present invention;
fig. 8 is a second block diagram of a communication device according to an embodiment of the present invention;
fig. 9 is a third structural diagram of a status monitoring apparatus of a forwarding network according to an embodiment of the present invention;
fig. 10 is a fourth structural diagram of a status monitoring apparatus of a forwarding network according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the forwarding network, there are 3 main connection modes between the AAU and the DU: fiber direct drive, passive wavelength division systems, and active wavelength division systems. The optical fiber direct drive mode consumes a large amount of forward transmission optical fiber resources, and is used for bearing 5G stations and consuming 12 optical fibers at least, so for the forward transmission network, a large amount of optical fiber resources need to be newly added, but the resources are difficult to obtain. In the passive wavelength division system mode, the use of the forward transmission fiber is reduced by adding the passive wavelength division transmission equipment between the AAU and the DU. However, as the forwarding is a passive device, the forwarding network cannot be managed and controlled. In the active wavelength division system mode, active wavelength division equipment is respectively added at the AAU end and the DU end, the wavelength of the multipath forward transmission optical fiber is multiplexed to a single optical fiber, the reduction of the optical fiber resource consumption is realized, and the monitoring and the protection of a forward transmission optical fiber link are realized on the active equipment. Although the active wavelength division system can have better control and protection for the forwarding network, the AAU end and the DU end which need forwarding can both access the active device, and additional power supply is needed. Therefore, this puts certain requirements on the deployment of the machine room, and the cost of the active forwarding equipment is high.
In order to solve the above problem, an embodiment of the present invention provides a method for monitoring a state of a fronthaul network based on an Open Wavelength Division Multiplexing (Open WDM). In the forwarding network, the control of the forwarding network is realized through an OpenWDM system. Fig. 1 is a schematic diagram of an open wavelength division multiplexing system according to an embodiment of the present invention. Wherein, open wavelength division multiplexing system includes: a passive WDM module 101 disposed at the AAU side, an active WDM module 102 disposed at the DU side, and an optical module 103.
With reference to fig. 2, fig. 2 is a schematic diagram illustrating a forwarding network in an embodiment of the present invention. In the system, the active WDM module is responsible for the management and control functions of the whole OpenWDM system, including the monitoring and management of the fronthaul optical path. The active WDM module may include a control optical interface, a MCU, a multiplexing module, etc. In the active WDM module, an independent control optical interface is used for transmitting and receiving a control optical signal through a control wavelength or receiving a control optical signal looped back by the passive WDM. The management optical signal may carry management information (or OAM (Operation Administration and Maintenance) information). The multiplexing module is used for multiplexing the control optical signal into a fronthaul optical path. The MCU module is used for inserting control information into the control optical signal or extracting the control information from the received control optical signal, so that the state of the forwarding network is determined, and the monitoring of the optical path is realized.
In the OpenWDM system, when no service optical path works, the control of a forwarding network optical path is realized by controlling an optical signal, and the state of the forwarding network is judged in advance; when a service optical path works, the control optical signal and the service signal can be transmitted in the forwarding network together, and the state of the forwarding network is monitored through the control optical signal. The control optical signal is transmitted in the forwarding network through independent wavelength.
And the active WDM module judges the link state according to the control optical signal received on the control wavelength and performs corresponding control operation. If the control optical signal is not received, it can be determined that the forwarding link may fail. Meanwhile, the corresponding switching protection operation can be triggered, and an alarm is reported. If the control optical signal is received, the control optical signal can be analyzed, and the state of the forwarding network is judged.
And the passive WDM module receives the signal sent by the active WDM module, and demultiplexes the signal to obtain the control optical signal. Then, the control wavelength for sending the control optical signal is identified, and the control optical signal is looped back by using the control wavelength.
By the scheme, the forward transmission optical fiber resources can be saved, the managed controllability of the forward transmission network can be realized, the installation limit of the forward transmission network is reduced, and the flexible and efficient deployment of the forward transmission network is realized.
Referring to fig. 3, fig. 3 is a flowchart of a method for monitoring a status of a forwarding network according to an embodiment of the present invention, and the method is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system. As shown in fig. 3, the method comprises the following steps:
In the case where the fronthaul network transmits a service signal, in this step, the first management and control optical signal and the service signal are multiplexed, and then the multiplexed signal is sent to the passive wavelength division multiplexing module. Wherein the control wavelength is different from a service wavelength for transmitting the service signal. Therefore, the passive wavelength division multiplexing module can identify the control wavelength of the first control optical signal.
In this step, in a case where the second management optical signal is not received, it is determined that the state of the forwarding network is a failure state. In the event that the second management optical signal is received, then, a state of the forwarding network is determined in accordance with the second management optical signal. Specifically, a signal sent by the passive wavelength division multiplexing module may be demultiplexed to obtain the second control optical signal transmitted by the control wavelength, and then the state of the forwarding network is determined according to the second control optical signal.
In the embodiment of the present invention, an active wavelength division multiplexing module in an open wavelength division multiplexing system sends a first control optical signal to a passive wavelength division multiplexing optical module in the system by using a control wavelength, and monitors a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength, so as to determine a state of the fronthaul network according to a monitoring condition of the second control optical signal. Because the passive wavelength division multiplexing module is adopted at the AAU side, the passive wavelength division multiplexing module does not need to be provided with additional power supply by utilizing the embodiment of the invention, thereby improving the flexibility of the deployment of the forwarding network.
Referring to fig. 4, fig. 4 is a flowchart of a method for monitoring a status of a forwarding network according to an embodiment of the present invention, and the method is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system. As shown in fig. 4, the method comprises the following steps:
In this step, the passive wavelength division multiplexing module demultiplexes a signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted through the control wavelength, and then identifies the control wavelength according to the first control optical signal, and sends the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
And under the condition that the fronthaul network transmits the service signal, the passive wavelength division multiplexing module multiplexes the second control optical signal and the service signal and sends the multiplexed signal to the active wavelength division multiplexing module. Wherein the control wavelength is different from a service wavelength for transmitting the service signal. Therefore, the active wavelength division multiplexing module can identify the control wavelength of the second control optical signal and perform subsequent processing according to the second control optical signal.
In the embodiment of the present invention, an active wavelength division multiplexing module in an open wavelength division multiplexing system sends a first control optical signal to a passive wavelength division multiplexing optical module in the system by using a control wavelength, and monitors a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength, so as to determine a state of the fronthaul network according to a monitoring condition of the second control optical signal. Because the passive wavelength division multiplexing module is adopted at the AAU side, the passive wavelength division multiplexing module does not need to be provided with additional power supply by utilizing the embodiment of the invention, thereby improving the flexibility of the deployment of the forwarding network.
The embodiment of the invention also provides a state monitoring device of the forwarding network. Referring to fig. 5, fig. 5 is a structural diagram of a status monitoring device of a forwarding network according to an embodiment of the present invention. Because the principle of the state monitoring device of the forwarding network for solving the problem is similar to the method for monitoring the state of the forwarding network in the embodiment of the present invention, the implementation of the state monitoring device of the forwarding network can refer to the implementation of the method, and repeated details are not described again. As shown in fig. 5, the state monitoring apparatus of the forwarding network is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the method comprises the following steps: a processor 501 and a transceiver 502.
The transceiver 502 is configured to send a first control optical signal to the passive wavelength division multiplexing module, where the first control optical signal is transmitted in the fronthaul network through a control wavelength; monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
the processor 501 is configured to determine a state of the forwarding network according to a monitoring condition of the second control optical signal.
Optionally, the transceiver 502 is further configured to multiplex the first control optical signal and the service signal and send a multiplexed signal to the passive wavelength division multiplexing module when the forwarding network transmits a service signal; wherein the control wavelength is different from a service wavelength for transmitting the service signal.
Optionally, the processor 501 is further configured to determine that the state of the forwarding network is a fault state when the second control optical signal is not received; or determining the state of the forwarding network according to the second control optical signal under the condition that the second control optical signal is received.
Optionally, the processor 501 is further configured to demultiplex a signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted through the control wavelength; and determining the state of the forwarding network according to the second control optical signal.
In the embodiment of the present invention, an active wavelength division multiplexing module in an open wavelength division multiplexing system sends a first control optical signal to a passive wavelength division multiplexing optical module in the system by using a control wavelength, and monitors a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength, so as to determine a state of the fronthaul network according to a monitoring condition of the second control optical signal. Because the passive wavelength division multiplexing module is adopted at the AAU side, the passive wavelength division multiplexing module does not need to be provided with additional power supply by utilizing the embodiment of the invention, thereby improving the flexibility of the deployment of the forwarding network.
The embodiment of the invention also provides a state monitoring device of the forwarding network. Referring to fig. 6, fig. 6 is a structural diagram of a status monitoring device of a forwarding network according to an embodiment of the present invention. Because the principle of the state monitoring device of the forwarding network for solving the problem is similar to the method for monitoring the state of the forwarding network in the embodiment of the present invention, the implementation of the state monitoring device of the forwarding network can refer to the implementation of the method, and repeated details are not described again. As shown in fig. 6, the state monitoring apparatus of the forwarding network is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the method comprises the following steps: a processor 601 and a transceiver 602.
The transceiver 602 is configured to receive a first control optical signal sent by the active wavelength division multiplexing module, where the first control optical signal is transmitted in the fronthaul network through a control wavelength; and sending a second control optical signal to the active wavelength division multiplexing optical module, wherein the second control optical signal is transmitted in the fronthaul network through the control wavelength.
Optionally, the transceiver 602 is further configured to demultiplex a signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted through the control wavelength; identifying the control wavelength according to the first control optical signal; and sending the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
Optionally, the transceiver 602 is further configured to multiplex the second control optical signal and the service signal and send a multiplexed signal to the active wavelength division multiplexing module when the forwarding network transmits a service signal; wherein the control wavelength is different from a service wavelength for transmitting the service signal.
In the embodiment of the present invention, an active wavelength division multiplexing module in an open wavelength division multiplexing system sends a first control optical signal to a passive wavelength division multiplexing optical module in the system by using a control wavelength, and monitors a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength, so as to determine a state of the fronthaul network according to a monitoring condition of the second control optical signal. Because the passive wavelength division multiplexing module is adopted at the AAU side, the passive wavelength division multiplexing module does not need to be provided with additional power supply by utilizing the embodiment of the invention, thereby improving the flexibility of the deployment of the forwarding network.
As shown in fig. 7, the communication device according to the embodiment of the present invention is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system, and includes:
the processor 700, which is used to read the program in the memory 720, executes the following processes: sending, by a transceiver 710, a first managed optical signal to the passive wavelength division multiplexing module, wherein the first managed optical signal is transmitted in the fronthaul network over a managed wavelength; monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength; and determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
A transceiver 710 for receiving and transmitting data under the control of the processor 700.
Where in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 710 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 in performing operations.
The processor 700 is further configured to read the computer program and perform the following steps:
multiplexing the first control optical signal and the service signal under the condition that the fronthaul network transmits the service signal, wherein the control wavelength is different from the service wavelength for transmitting the service signal;
the multiplexed signal is transmitted to the passive wavelength division multiplexing module through the transceiver 710.
The processor 700 is further configured to read the computer program and perform the following steps:
determining that the state of the forwarding network is a fault state under the condition that the second control optical signal is not received; or
And under the condition that the second control optical signal is received, determining the state of the forwarding network according to the second control optical signal.
The processor 700 is further configured to read the computer program and perform the following steps:
demultiplexing the signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted by the control wavelength;
and determining the state of the forwarding network according to the second control optical signal.
The communication device provided by the embodiment of the present invention may execute the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
As shown in fig. 8, a communication device according to an embodiment of the present invention is a passive wavelength division multiplexing module applied in an open wavelength division multiplexing system, and includes:
the processor 800, which is used to read the program in the memory 820, executes the following processes: receiving, by a transceiver 810, a first control optical signal sent by the active wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength; and sending a second control optical signal to the active wavelength division multiplexing optical module, wherein the second control optical signal is transmitted in the fronthaul network through the control wavelength.
A transceiver 810 for receiving and transmitting data under the control of the processor 800.
Where in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 800 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 810 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.
The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 in performing operations.
The processor 800 is further configured to read the computer program and perform the following steps:
demultiplexing the signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted by the control wavelength;
identifying the control wavelength according to the first control optical signal;
and transmitting the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength by using a transceiver 810.
The processor 800 is further configured to read the computer program and perform the following steps:
multiplexing the second control optical signal and the service signal under the condition that the fronthaul network transmits the service signal, wherein the control wavelength is different from the service wavelength for transmitting the service signal;
the multiplexed signal is transmitted to the active wavelength division multiplexing module through a transceiver 810.
The communication device provided by the embodiment of the present invention may execute the above method embodiment, and the implementation principle and technical effect are similar, which are not described herein again.
As shown in fig. 9, the state monitoring apparatus of the forwarding network according to the embodiment of the present invention is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the active wavelength division multiplexing module is arranged at the side of the distribution unit DU; the open wavelength division multiplexing system further includes: the passive wavelength division multiplexing module is arranged at the AAU side of the active antenna unit; the device comprises:
a first sending module 901, configured to send a first control optical signal to the passive wavelength division multiplexing module, where the first control optical signal is transmitted in the fronthaul network through a control wavelength; a monitoring module 902, configured to monitor, at the control wavelength, a second control optical signal sent by the passive wavelength division multiplexing module; a determining module 903, configured to determine a state of the forwarding network according to a monitoring condition of the second management and control optical signal.
Wherein the first sending module 901 includes: a multiplexing sub-module, configured to multiplex the first control optical signal and the service signal, where the control wavelength is different from a service wavelength for transmitting the service signal; and the sending submodule is used for sending the multiplexed signal to the passive wavelength division multiplexing module.
Wherein the determining module 902 comprises: the first determining submodule is used for determining that the state of the forwarding network is a fault state under the condition that the second control optical signal is not received; or, the second determining sub-module is configured to determine, according to the second control optical signal, a state of the forwarding network under the condition that the second control optical signal is received.
Wherein the second determination submodule includes: the demultiplexing unit is configured to demultiplex a signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted through the control wavelength; and the determining unit is used for determining the state of the forwarding network according to the second control optical signal.
The apparatus provided in the embodiment of the present invention may implement the method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
As shown in fig. 10, the state monitoring apparatus of the forwarding network according to the embodiment of the present invention is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the passive wavelength division multiplexing module is arranged at the AAU side; the open wavelength division multiplexing system further includes: the active wavelength division multiplexing module is arranged at the DU side; the device comprises:
a first receiving module 1001, configured to receive a first control optical signal sent by the active wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength;
the first sending module 1002 is configured to send a second control optical signal to the active wavelength division multiplexing optical module, where the second control optical signal is transmitted in the fronthaul network through the control wavelength.
Wherein the first transmitting module 1001 includes: the demultiplexing submodule is used for demultiplexing the signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted by the control wavelength; the processing submodule is used for identifying the control wavelength according to the first control optical signal; and the sending submodule is used for sending the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
Wherein the transmission submodule includes: a multiplexing unit, configured to multiplex the second control optical signal and the service signal when the forwarding network transmits a service signal, where the control wavelength is different from a service wavelength for transmitting the service signal; and the sending unit is used for sending the multiplexed signal to the active wavelength division multiplexing module.
The apparatus provided in the embodiment of the present invention may implement the method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
Furthermore, a computer-readable storage medium of an embodiment of the present invention stores a computer program executable by a processor to implement:
sending a first control optical signal to a passive wavelength division multiplexing module, wherein the first control optical signal is transmitted in the forwarding network through a control wavelength;
monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
and determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
Under the condition that the fronthaul network transmits the service signal, the sending a first control optical signal to the passive wavelength division multiplexing module includes:
multiplexing the first management and control optical signal and the service signal, wherein the management and control wavelength is different from a service wavelength for transmitting the service signal;
and sending the multiplexed signal to the passive wavelength division multiplexing module.
Wherein the determining the state of the forwarding network according to the monitoring condition of the second control optical signal includes:
determining that the state of the forwarding network is a fault state under the condition that the second control optical signal is not received; or
And under the condition that the second control optical signal is received, determining the state of the forwarding network according to the second control optical signal.
Wherein, in a case where the second management control optical signal is received, determining a state of the forwarding network according to the second management control optical signal includes:
demultiplexing the signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted by the control wavelength;
and determining the state of the forwarding network according to the second control optical signal.
Furthermore, a computer-readable storage medium of an embodiment of the present invention stores a computer program executable by a processor to implement:
receiving a first control optical signal sent by an active wavelength division multiplexing module, wherein the first control optical signal is transmitted in the forwarding network through a control wavelength;
and sending a second control optical signal to the active wavelength division multiplexing optical module, wherein the second control optical signal is transmitted in the fronthaul network through the control wavelength.
Wherein the sending a second managed optical signal to the active wavelength division multiplexing optical module includes:
demultiplexing the signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted by the control wavelength;
identifying the control wavelength according to the first control optical signal;
and sending the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
Wherein, in a case that the fronthaul network transmits a service signal, the sending the second control optical signal to the active wavelength division multiplexing optical module includes:
multiplexing the second control optical signal and the service signal, wherein the control wavelength is different from a service wavelength for transmitting the service signal;
and sending the multiplexed signal to the active wavelength division multiplexing module.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A state monitoring method of a forwarding network is characterized in that the method is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the active wavelength division multiplexing module is arranged at the side of the distribution unit DU; the open wavelength division multiplexing system further includes: the passive wavelength division multiplexing module is arranged at the AAU side of the active antenna unit; the method comprises the following steps:
sending a first control optical signal to the passive wavelength division multiplexing module, wherein the first control optical signal is transmitted in the forwarding network through a control wavelength;
monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
and determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
2. The method of claim 1, wherein in a case where the fronthaul network transmits a traffic signal, the sending the first managed optical signal to the passive wavelength division multiplexing module comprises:
multiplexing the first management and control optical signal and the service signal, wherein the management and control wavelength is different from a service wavelength for transmitting the service signal;
and sending the multiplexed signal to the passive wavelength division multiplexing module.
3. The method of claim 1, wherein determining the status of the forwarding network based on the monitoring of the second managed optical signal comprises:
determining that the state of the forwarding network is a fault state under the condition that the second control optical signal is not received; or
And under the condition that the second control optical signal is received, determining the state of the forwarding network according to the second control optical signal.
4. The method of claim 3, wherein determining the state of the forwarding network from the second managed optical signal if the second managed optical signal is received comprises:
demultiplexing the signal sent by the passive wavelength division multiplexing module to obtain the second control optical signal transmitted by the control wavelength;
and determining the state of the forwarding network according to the second control optical signal.
5. A state monitoring method of a forwarding network is characterized in that the method is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the passive wavelength division multiplexing module is arranged at the AAU side; the open wavelength division multiplexing system further includes: the active wavelength division multiplexing module is arranged at the DU side; the method comprises the following steps:
receiving a first control optical signal sent by the active wavelength division multiplexing module, wherein the first control optical signal is transmitted in the forwarding network through a control wavelength;
and sending a second control optical signal to the active wavelength division multiplexing optical module, wherein the second control optical signal is transmitted in the fronthaul network through the control wavelength.
6. The method of claim 5, wherein the sending a second management optical signal to the active WDM optical module comprises:
demultiplexing the signal sent by the active wavelength division multiplexing module to obtain the first control optical signal transmitted by the control wavelength;
identifying the control wavelength according to the first control optical signal;
and sending the second control optical signal to the active wavelength division multiplexing optical module through the control wavelength.
7. The method of claim 6, wherein in a case where the fronthaul network transmits a traffic signal, the sending the second management optical signal to the active wavelength division multiplexing optical module includes:
multiplexing the second control optical signal and the service signal, wherein the control wavelength is different from a service wavelength for transmitting the service signal;
and sending the multiplexed signal to the active wavelength division multiplexing module.
8. A state monitoring device of a forwarding network is characterized in that the state monitoring device is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the active wavelength division multiplexing module is arranged at the DU side; the open wavelength division multiplexing system further includes: the passive wavelength division multiplexing module is arranged at the AAU side of the active antenna unit; the device comprises: a processor and a transceiver;
the transceiver is configured to send a first control optical signal to the passive wavelength division multiplexing module, where the first control optical signal is transmitted in the fronthaul network through a control wavelength; monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
and the processor is used for determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
9. A state monitoring device of a forwarding network is characterized in that the state monitoring device is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the passive wavelength division multiplexing module is arranged at the AAU side; the open wavelength division multiplexing system further includes: the active wavelength division multiplexing module is arranged at the DU side; the device comprises: a processor and a transceiver;
the transceiver is configured to receive a first control optical signal sent by the active wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength; and sending a second control optical signal to the active wavelength division multiplexing optical module, wherein the second control optical signal is transmitted in the fronthaul network through the control wavelength.
10. A state monitoring device of a forwarding network is characterized in that the state monitoring device is applied to an active wavelength division multiplexing module in an open wavelength division multiplexing system; the active wavelength division multiplexing module is arranged at the side of the distribution unit DU; the open wavelength division multiplexing system further includes: the passive wavelength division multiplexing module is arranged at the AAU side of the active antenna unit; the device comprises:
a first sending module, configured to send a first control optical signal to the passive wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength;
the monitoring module is used for monitoring a second control optical signal sent by the passive wavelength division multiplexing module on the control wavelength;
and the determining module is used for determining the state of the forwarding network according to the monitoring condition of the second control optical signal.
11. A state monitoring device of a forwarding network is characterized in that the state monitoring device is applied to a passive wavelength division multiplexing module in an open wavelength division multiplexing system; the passive wavelength division multiplexing module is arranged at the AAU side; the open wavelength division multiplexing system further includes: the active wavelength division multiplexing module is arranged at the DU side; the device comprises:
a first receiving module, configured to receive a first control optical signal sent by the active wavelength division multiplexing module, where the first control optical signal is transmitted in the forwarding network through a control wavelength;
the first sending module is configured to send a second control optical signal to the active wavelength division multiplexing optical module, where the second control optical signal is transmitted in the fronthaul network through the control wavelength.
12. A communication device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; it is characterized in that the preparation method is characterized in that,
the processor, configured to read a program in the memory to implement the steps in the method according to any one of claims 1 to 4; or to implement a step in a method as claimed in any one of claims 5 to 7.
13. A computer-readable storage medium for storing a computer program, wherein the computer program, when executed by a processor, implements the steps in the method according to any one of claims 1 to 4; or to implement a step in a method as claimed in any one of claims 5 to 7.
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