CN115278408A

CN115278408A - Parameter adjustment method and device for optical network service and communication equipment

Info

Publication number: CN115278408A
Application number: CN202110485353.5A
Authority: CN
Inventors: 李允博
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-11-01

Abstract

The application discloses a method and a device for adjusting parameters of an optical network service and communication equipment, wherein the method comprises the following steps: determining an expected receiving parameter corresponding to a target wavelength based on a first sending parameter corresponding to the target wavelength; using the target wavelength to send a service signal to the host node according to the first sending parameter, wherein the service signal carries the expected receiving parameter; receiving a feedback signal transmitted by the sink node, the feedback signal being determined based on the expected reception parameter and an actual reception parameter of the traffic signal; and adjusting the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the feedback signal.

Description

Parameter adjustment method and device for optical network service and communication equipment

Technical Field

The present application relates to the field of optical transmission technologies, and in particular, to a method and an apparatus for adjusting parameters of an optical network service, and a communication device.

Background

In an all-optical network, each service is configured with a dedicated wavelength, so that the service is transmitted using the dedicated wavelength. An optical link transporting traffic involves a plurality of nodes, e.g., a source node, one or more intermediate nodes, and a sink node, with the traffic being transported along a particular path from the source node to the sink node via the intermediate nodes.

In order to realize that the sink node normally receives the service, the sink node needs to detect an actual receiving parameter of the service signal, then evaluate whether the actual receiving parameter meets a receiving requirement, and then appropriately adjust a transmitting parameter of the source node side for the service signal. Since the service uses dedicated wavelength transmission, and different wavelengths have different performance and different damage in the transmission process, the transmission parameters of the service signal corresponding to each wavelength at the source node side need to be adjusted one by one according to the actual receiving parameters of the service signal corresponding to each wavelength at the sink node side, which results in a large workload.

Disclosure of Invention

To solve the foregoing technical problem, embodiments of the present application provide a method and an apparatus for adjusting parameters of an optical network service, a communication device, a chip, and a computer-readable storage medium

The method for adjusting parameters of an optical network service provided by the embodiment of the application is applied to a source node, and comprises the following steps:

determining an expected receiving parameter corresponding to a target wavelength based on a first sending parameter corresponding to the target wavelength;

using the target wavelength to send a service signal to the host node according to the first sending parameter, wherein the service signal carries the expected receiving parameter;

receiving a feedback signal transmitted by the sink node, the feedback signal being determined based on the expected reception parameter and an actual reception parameter of the traffic signal;

and adjusting the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the feedback signal.

In some optional embodiments, the service signal carries first Operation Administration and Maintenance (OAM) information, and the first OAM information carries the expected reception parameter.

In some optional embodiments, the first OAM information is carried in a first OAM frame, wherein the first OAM frame comprises:

a first field to indicate the expected reception parameter.

In some optional embodiments, the first OAM frame further comprises at least one of:

a second field to indicate a wavelength identification of the target wavelength;

a third field for indicating a start position of the first OAM frame;

a fourth field for indicating whether the first OAM frame is a multiframe and a position in the multiframe;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the transmitting a traffic signal to the sink node according to the first transmission parameter using the target wavelength includes:

loading service information to a carrier wave with the target wavelength to obtain a first signal;

loading the first OAM information to a carrier wave with a specific frequency to obtain a second signal;

loading the second signal to the first signal to obtain a service signal;

transmitting the traffic signal to the sink node.

In some optional embodiments, the feedback signal carries second OAM information, where the second OAM information carries the actual receiving parameter and indication information, and the indication information is used to indicate whether the sink node receives the service signal normally.

In some optional embodiments, the second OAM information is carried in a second OAM frame, wherein the second OAM frame comprises:

a first field to indicate the actual reception parameter.

In some optional embodiments, the second OAM frame further includes at least one of:

a third field for indicating a start position of the second OAM frame;

a fourth field for indicating whether the second OAM frame is a multiframe and a position in the multiframe;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the adjusting the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the feedback signal includes:

acquiring the actual receiving parameter and the indication information based on the second OAM information in the feedback signal;

if the indication information indicates that the host node does not normally receive the service signal, adjusting the first sending parameter corresponding to the target wavelength to a second sending parameter based on the actual receiving parameter, wherein the second sending parameter is greater than the first sending parameter;

if the indication information indicates that the sink node normally receives the service signal, the first transmission parameter corresponding to the target wavelength is adjusted to be a second transmission parameter based on the actual receiving parameter, wherein the second transmission parameter is smaller than the first transmission parameter.

In some optional embodiments, the receiving parameters comprise at least one of: receiving optical power, optical signal-to-noise ratio and bit error rate.

In some optional embodiments, the transmission parameter comprises at least one of: fiber-in optical power and output gain.

The method for adjusting parameters of an optical network service provided by the embodiment of the application is applied to a host node, and the method comprises the following steps:

receiving a service signal sent by a source node, wherein the service signal carries an expected receiving parameter corresponding to a target wavelength;

determining actual reception parameters of the traffic signal and determining a feedback signal based on the expected reception parameters and the actual reception parameters;

and sending the feedback signal to the source node, wherein the feedback signal is used for adjusting the first sending parameter corresponding to the target wavelength to a second sending parameter by the source node.

In some optional embodiments, the traffic signal carries first OAM information, which carries the expected reception parameters.

a first field to indicate the expected reception parameter.

In some optional embodiments, the first OAM frame further includes at least one of:

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

a first field to indicate the actual reception parameter.

In some optional embodiments, the second OAM frame further comprises at least one of:

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the determining a feedback signal based on the expected reception parameter and the actual reception parameter comprises:

if the actual receiving parameter is larger than the expected receiving parameter, setting the indication information to indicate the host node to normally receive the service signal;

if the actual receiving parameter is smaller than the expected receiving parameter, setting the indication information to indicate that the host node does not normally receive the service signal.

The parameter adjusting device for optical network services provided by the embodiment of the application is applied to a source node, and the device comprises:

the device comprises a determining unit, a receiving unit and a processing unit, wherein the determining unit is used for determining expected receiving parameters corresponding to a target wavelength based on first sending parameters corresponding to the target wavelength;

a sending unit, configured to send, to the sink node, a service signal according to the first sending parameter by using the target wavelength, where the service signal carries the expected receiving parameter;

a receiving unit, configured to receive a feedback signal sent by the sink node, where the feedback signal is determined based on the expected reception parameter and an actual reception parameter of the traffic signal;

an adjusting unit, configured to adjust the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the feedback signal.

a first field to indicate the expected reception parameter.

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the apparatus further comprises:

the modulation unit is used for loading the service information onto the carrier wave with the target wavelength to obtain a first signal; loading the first OAM information to a carrier wave with a specific frequency to obtain a second signal; loading the second signal to the first signal to obtain a service signal;

and the sending unit is used for sending the service signal to the sink node.

a first field to indicate the actual reception parameter.

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the adjusting unit is configured to obtain the actual reception parameter and the indication information based on the second OAM information in the feedback signal; if the indication information indicates that the host node does not normally receive the service signal, adjusting the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the actual reception parameter, wherein the second transmission parameter is greater than the first transmission parameter; if the indication information indicates that the sink node normally receives the service signal, the first transmission parameter corresponding to the target wavelength is adjusted to be a second transmission parameter based on the actual receiving parameter, wherein the second transmission parameter is smaller than the first transmission parameter.

The parameter adjusting device for optical network services provided by the embodiment of the application is applied to a host node, and the device comprises:

a receiving unit, configured to receive a service signal sent by a source node, where the service signal carries an expected receiving parameter corresponding to a target wavelength;

a determining unit, configured to determine an actual receiving parameter of the traffic signal, and determine a feedback signal based on the expected receiving parameter and the actual receiving parameter;

a sending unit, configured to send the feedback signal by the source node, where the feedback signal is used for the source node to adjust a first sending parameter corresponding to the target wavelength to a second sending parameter.

a first field to indicate the expected reception parameter.

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

a first field to indicate the actual reception parameter.

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the determining unit is configured to determine that the indication information indicates that the sink node normally receives the traffic signal if the actual reception parameter is greater than the expected reception parameter; if the actual receiving parameter is smaller than the expected receiving parameter, determining that the indication information indicates that the sink node does not normally receive the service signal.

The communication device provided by the embodiment of the application comprises: the processor is used for calling and running the computer program stored in the memory, and executing any one of the above parameter adjusting methods of the optical network service.

The chip provided by the embodiment of the application comprises: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes any one of the above parameter adjustment methods of the optical network service.

The storage medium readable by the core computer provided in the embodiments of the present application is used to store a computer program, where the computer program enables a computer to execute any one of the above-mentioned parameter adjustment methods for an optical network service.

In the technical scheme of the embodiment of the application, a source node carries expected receiving parameters of a service signal estimated by the source node in a service signal sent to a sink node, and the sink node sends a feedback signal to the source node according to the expected receiving parameters of the service signal and actual receiving parameters of the service signal, so that the source node adjusts the sending parameters according to the feedback signal, and thus, the automatic adjustment of the sending parameters of a target wavelength is realized through forward transmission and reverse feedback between the source node and the sink node. For the condition of multiple wavelengths, the technical scheme of the embodiment of the application can be adopted to automatically adjust the transmission parameter of each wavelength, and finally the purpose that the actual receiving parameter of the host node meets the receiving requirement is achieved, so that the automatic optimization of the optical link performance is realized, and the huge labor cost caused by the adjustment of the optical link parameter is reduced.

Drawings

Fig. 1 is a schematic diagram of an optical link in an optical network according to an embodiment of the present application;

fig. 2 is a first flowchart illustrating a method for adjusting parameters of an optical network service according to an embodiment of the present application;

fig. 3 is a second flowchart illustrating a method for adjusting parameters of an optical network service according to an embodiment of the present application;

fig. 4 is a third flowchart illustrating a method for adjusting parameters of an optical network service according to an embodiment of the present application;

fig. 5 is a fourth flowchart illustrating a method for adjusting parameters of an optical network service according to an embodiment of the present application;

fig. 6 is a first schematic structural diagram of a parameter adjustment apparatus for optical network services according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a parameter adjustment apparatus for an optical network service according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 9 is a schematic structural diagram of a chip of the embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that, in the embodiment of the present application, the term "and/or" is only an association relationship for describing an associated object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the embodiment of the present application, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship.

It should be understood that "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication of an association relationship. For example, a indicates B, which may mean that a directly indicates B, e.g., B may be obtained by a; it may also mean that a indicates B indirectly, e.g. a indicates C, by which B may be obtained; it can also mean that there is an association between a and B.

In the description of the embodiments of the present application, the term "correspond" may indicate that there is a direct correspondence or an indirect correspondence between the two, may also indicate that there is an association between the two, and may also indicate and be indicated, configure and configured, and so on.

For convenience of understanding of technical solutions of the embodiments of the present application, the following description is provided for related technologies of the embodiments of the present application, and the following related technologies may be arbitrarily combined with the technical solutions of the embodiments of the present application as alternatives, which all belong to the protection scope of the embodiments of the present application.

The all-optical network is to directly complete all functions of network communication at an optical layer, that is, to directly perform transmission, exchange, processing and the like of signals in an optical domain. In an all-optical network, a node refers to an optical node, and common optical nodes include: optical transmitters, optical receivers, optical amplifiers, optical connectors, optical splitters, optical attenuators, and the like. The optical nodes transmit service signals through optical fibers.

In an all-optical network, each service is configured with a dedicated wavelength, so that the service is transmitted using the dedicated wavelength. Generally, there will be bidirectional traffic between two nodes. By way of example, referring to fig. 1, fig. 1 illustrates that there is a bi-directional traffic between node a to node Z. Under the condition that the node A is used as a source node and the node Z is used as a destination node, corresponding to a service in one direction, the service is called as a service S1; when the node Z is a source node and the node a is a sink node, the traffic in the other direction is referred to as traffic S2. The service S2 is referred to as a reverse service of the service S1, and similarly, the service S1 is referred to as a reverse service of the service S2. The service S1 and the service S2 may or may not have an association relationship. For the service S1, the nodes involved in the optical link are: node a → node B → node C → node Z; for the service S2, the nodes involved in the optical link are: node Z → node C → node B → node a. For service S1, the service is transmitted using a dedicated wavelength. For ease of traffic management, the traffic S2 is transmitted using the same dedicated wavelength as the traffic S1.

The term "transmitting traffic using a dedicated wavelength" means transmitting traffic using a carrier having a dedicated wavelength. For convenience of description, the transmission parameter/reception parameter/transmission performance of a traffic signal transmitted using a certain wavelength may also be referred to as the transmission parameter/reception parameter/transmission performance of the wavelength.

In order to ensure normal transmission of the service, the transmission performance of the wavelength needs to be adjusted to a proper range, for example, the receiving parameter of the wavelength is adjusted to a proper range. As an example, the reception parameter may be received Optical power, optical Signal Noise Ratio (OSNR), bit error rate, or the like. The power consumption of the system is also considered while adjusting the receiving parameters.

As shown in fig. 1, for example, 20 wavelengths are used for transmitting 20 service signals (or wavelength signals) from node a to node Z, and in order to enable node Z to normally receive each service signal, it is necessary to perform performance evaluation on each received service signal at node Z, and then adjust a transmission parameter of each service signal, where the transmission parameter may be, for example, an optical fiber power, a gain parameter, and the like.

When the route (i.e., optical link) of a service has been determined, the receiving parameters at the sink node (i.e., receiving end of the service signal) can be basically calculated by a formula, and the receiving parameters calculated by the formula are referred to as expected receiving parameters, and the expected receiving parameters are mainly determined based on routing information, such as the length of an optical fiber, attenuation, and noise figure of an optical amplifier. In some alternative embodiments, the expected reception parameter may be calculated according to the following "formula 58":

OSNR＝58+P_in-G-NF-10LogN；

the OSNR is the optical signal-to-noise ratio of each channel after N optical amplification sections, and the unit is dBm; p is_inIs the incoming fiber power per path; g is amplifier gain in dB; NF is: the noise figure of an Erbium Doped Fiber Amplifier (EDFA) is in dB.

The OSNR is degraded by the noise of the optical amplifier, and is further reduced as the number of cascade of the optical amplifiers increases, and finally, the Bit Error Rate (BER) is increased at the receiving end of the traffic signal, so that increasing the OSNR can reduce the BER. On the premise that the parameters of the optical link are determined, the OSNR can be improved by improving the optical power of the optical fiber to a proper limit, so that the error rate can be reduced; increasing the fiber-entering optical power results in significant nonlinear effects, and although the OSNR is increased, the bit error rate is degraded. The adjustment of the power of the incoming fiber is therefore a result of iterative equalisation.

In an optical link, in order to realize that a sink node normally receives a service, the sink node needs to detect an actual receiving parameter of a service signal, then evaluate whether the actual receiving parameter meets a receiving requirement, and then appropriately adjust a transmission parameter of a source node side for the service signal. Since the service is transmitted by using a dedicated wavelength, and different wavelengths have different performance and different damages in the transmission process, the transmission parameters of the service signals corresponding to each wavelength at the source node side need to be adjusted one by one according to the actual receiving parameters of the service signals corresponding to each wavelength at the sink node side, which results in a large workload.

Therefore, the following technical scheme of the embodiment of the application is provided. According to the technical scheme of the embodiment of the application, the automatic adjustment of the performance of each wavelength between the source node and the sink node can be realized, and the automation degree of the system performance optimization is improved.

First, a frame format provided in the embodiment of the present application is described below, and it should be noted that the following technical solutions in the embodiment of the present application may be implemented in any combination with the content of the frame format, and all of them belong to the protection scope of the embodiment of the present application.

The embodiment of the application provides a frame format, which may be referred to as an OAM link layer frame format, and may also be referred to as an optical layer OAM frame format for short, or referred to as an OAM frame format for short. In the following description, this frame format is referred to as an OAM frame format.

As an example, the following table 1 shows the structure of the OAM frame format, which is 64 bytes (byte) in block and can be extended by means of a multi-frame. It should be noted that the length of each field in the OAM frame format given in table 1 is an optional implementation manner, and the length of each field is not limited to the length given in table 1, and may also be defined as another length.

Frame header marker

Multiframe indication

Wavelength ID

Frame length

Frame check code

Message

OCC

FEC

2 bytes

1 byte

2 bytes

1 byte

29 bytes

16 bytes

12 bytes

TABLE 1

The meaning of each field in the OAM frame format in table 1 above can be referred to as shown in table 2 below.

TABLE 2

In this embodiment, information carried in an OAM frame may be referred to as OAM information.

In some optional embodiments, the OAM information may be carried in the traffic signals. Specifically, the OAM information may be loaded into the traffic signal in the following manner:

1) Loading the service information onto a carrier wave with a target wavelength to obtain a first signal;

2) Loading OAM information onto a carrier wave with a specific frequency to obtain a second signal;

here, the carrier wave of a specific frequency may be a sine wave signal or a cosine wave signal of a low frequency. The second signal may also be referred to as a set top signal.

3) And loading the second signal to the first signal to obtain a service signal.

The service signal obtained by the method carries OAM information.

In some optional embodiments, the OAM information may be carried in the wavelength signal. Specifically, the OAM information may be loaded into the wavelength signal by:

1) Loading OAM information onto a carrier wave with a specific frequency to obtain a second signal;

2) And loading the second signal to a carrier wave with a target wavelength to obtain a wavelength signal.

The wavelength signal obtained in the above manner carries OAM information.

The wavelength indicated by the wavelength ID in the OAM information is the target wavelength.

Fig. 2 is a first flowchart of a method for adjusting parameters of an optical network service according to an embodiment of the present application, and is applied to a source node, where as shown in fig. 2, the method for adjusting parameters of an optical network service includes the following steps:

step 201: and determining an expected receiving parameter corresponding to the target wavelength based on a first sending parameter corresponding to the target wavelength.

In this embodiment, there may be T services from a source node to a sink node in an optical link, where T is a positive integer, and each service in the T services is transmitted using a specific wavelength, and such a service may also be referred to as a wavelength service. It can be seen that there are N wavelengths between the source node and the sink node, and the target wavelength in this embodiment may be any one of the N wavelengths, in other words, any one of the wavelengths between the source node and the sink node may be applied to the technical solution in this embodiment to adjust the corresponding transmission parameter.

Here, the source node refers to a start node of traffic transmission, and the sink node refers to an end node of traffic transmission.

In the embodiment of the present application, a source node determines an expected receiving parameter corresponding to a target wavelength based on a first sending parameter corresponding to the target wavelength.

In some optional embodiments, the first transmission parameter comprises at least one of: fiber-in optical power and output gain.

In some optional embodiments, the expected reception parameter comprises at least one of: receiving optical power, optical signal-to-noise ratio and bit error rate.

As an example, taking the expected receiving parameter as the osnr as an example, the expected receiving parameter can be calculated according to the following "58 formula":

OSNR＝58+P_in-G-NF-10LogN；

the OSNR is the optical signal-to-noise ratio of each channel after N optical amplification sections, and the unit is dBm; p_inIs the incoming fiber power per path; g is amplifier gain in dB; NF is: the noise figure of an Erbium Doped Fiber Amplifier (EDFA) is in dB.

Step 202: and transmitting a service signal to the host node by using the target wavelength according to the first transmission parameter, wherein the service signal carries the expected receiving parameter.

In this embodiment, the source node transmits a service signal to the sink node according to the first transmission parameter by using the target wavelength. Here, it should be noted that the traffic signal transmitted from the source node to the sink node is transmitted along the path of the optical link.

Taking fig. 1 as an example, the paths of the optical link are: node a → node B → node C → node Z, where the source node is node a and the sink node is node Z, and there are two intermediate nodes between node a and node Z, node B and node C respectively. The service signal transmitted using the target wavelength is transmitted from node a to node B, then from node B to node C, and then from node C to node Z, and finally node Z completes reception of the service signal.

In the embodiment of the present application, a service signal sent by a source node to a sink node carries an expected receiving parameter. Specifically, the service signal carries first OAM information, and the first OAM information carries the expected receiving parameter.

Here, the first OAM information is carried in a first OAM frame, wherein the first OAM frame includes: a first field to indicate the expected reception parameter.

Further, the first OAM frame also includes at least one of:

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

Here, the contents of the first OAM frame may refer to the related description of the aforementioned OAM frame, wherein the first field corresponds to a message field in the OAM frame, the second field corresponds to a wavelength ID field in the OAM frame, the third field corresponds to a frame header flag field in the OAM frame, the fourth field corresponds to a multiframe indication field in the OAM frame, the fifth field corresponds to a frame length field in the OAM frame, the sixth field corresponds to a frame check code field in the OAM frame, the seventh word corresponds to an OCC field in the OAM frame, and the eighth field corresponds to an FEC field in the OAM frame.

In this embodiment, the first field in the first OAM frame is a message field, and the message field includes a capability query message, where the capability query message is used to indicate the expected reception parameters.

In the embodiment of the present application, a source node sends a service signal to a sink node, which may be implemented in the following manner:

1) Loading service information to a carrier wave with the target wavelength to obtain a first signal;

2) Loading the first OAM information to a carrier wave with a specific frequency to obtain a second signal;

3) Loading the second signal to the first signal to obtain a service signal;

4) Transmitting the traffic signal to the sink node.

The service signal obtained by the above method carries the first OAM information. As can be seen, the first OAM information may be transmitted to the sink node along with the traffic signal, so that the sink node may determine the feedback signal.

Step 203: receiving a feedback signal transmitted by the sink node, the feedback signal being determined based on the expected reception parameter and an actual reception parameter of the traffic signal.

In this embodiment, a source node receives a feedback signal sent by the sink node, where the feedback signal is determined based on the expected reception parameter and an actual reception parameter of the traffic signal. Here, the feedback signal includes an actual reception parameter and indication information for indicating whether the sink node normally receives the traffic signal.

Specifically, the feedback signal carries second OAM information, where the second OAM information carries the actual receiving parameter and the indication information, and the indication information is used to indicate whether the host node receives the service signal normally.

Here, the second OAM information is carried in a second OAM frame, wherein the second OAM frame comprises: a first field to indicate the actual reception parameter.

Further, the second OAM frame may also include at least one of:

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

Here, the contents of the second OAM frame may refer to the related description of the aforementioned OAM frame, wherein the first field corresponds to a message field in the OAM frame, the second field corresponds to a wavelength ID field in the OAM frame, the third field corresponds to a frame header flag field in the OAM frame, the fourth field corresponds to a multiframe indication field in the OAM frame, the fifth field corresponds to a frame length field in the OAM frame, the sixth field corresponds to a frame check code field in the OAM frame, the seventh word corresponds to an OCC field in the OAM frame, and the eighth field corresponds to an FEC field in the OAM frame.

In this embodiment of the present application, a first field in a first OAM frame is a message field, where the message field includes a performance query message, where the performance query message is used to indicate an actual receiving parameter and indication information, and the indication information is used to indicate whether the sink node normally receives the service signal.

Step 204: and adjusting the first transmission parameter corresponding to the target wavelength to be a second transmission parameter based on the feedback signal.

In this embodiment of the present application, the source node adjusts the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the feedback signal.

In some optional embodiments, the actual reception parameter and the indication information are obtained based on the second OAM information in the feedback signal; if the indication information indicates that the host node does not normally receive the service signal, adjusting the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the actual reception parameter, wherein the second transmission parameter is greater than the first transmission parameter; if the indication information indicates that the sink node normally receives the service signal, the first transmission parameter corresponding to the target wavelength is adjusted to be a second transmission parameter based on the actual receiving parameter, wherein the second transmission parameter is smaller than the first transmission parameter.

For example: taking a sending parameter as an optical fiber power, taking a receiving parameter as an OSNR, and if the indication information indicates that the host node does not normally receive the service signal, increasing the optical fiber power corresponding to the target wavelength based on the actual OSNR; and if the indication information indicates that the host node normally receives the service signal, the fiber-entering optical power corresponding to the target wavelength is adjusted to be small based on the actual OSNR.

According to the technical scheme of the embodiment of the application, the source node informs the destination node of the expected receiving parameters through OAM information; after the sink node determines the feedback signal according to the expected receiving parameter and the actual receiving parameter, the source node is informed of the feedback signal through OAM information, and the source node automatically adjusts the sending parameter according to the feedback signal sent by the sink node, so that the actual receiving parameter of the sink node reaches a normal state.

Fig. 3 is a second flowchart of a parameter adjustment method for an optical network service provided in an embodiment of the present application, and is applied to a sink node, as shown in fig. 3, the parameter adjustment method for the optical network service includes the following steps:

step 301: and receiving a service signal sent by a source node, wherein the service signal carries an expected receiving parameter corresponding to the target wavelength.

In the embodiment of the application, a destination node receives a service signal sent by a source node, where the service signal carries an expected receiving parameter corresponding to a target wavelength. Specifically, the service signal carries first OAM information, and the first OAM information carries the expected receiving parameter.

Here, the first OAM information is carried in a first OAM frame, wherein the first OAM frame comprises: a first field to indicate the expected reception parameter.

Further, the first OAM frame may also include at least one of:

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In this embodiment, the first field in the first OAM frame is a message field, and the message field includes a performance query message, where the performance query message is used to indicate the expected reception parameters.

Step 302: actual reception parameters of the traffic signal are determined, and a feedback signal is determined based on the expected reception parameters and the actual reception parameters.

In the embodiment of the present application, the sink node obtains an actual receiving parameter of the service signal by detecting the service signal, and determines the feedback signal based on the expected receiving parameter and the actual receiving parameter.

In some optional embodiments, if the actual reception parameter is greater than the expected reception parameter, it is determined that the indication information indicates that the sink node normally receives the traffic signal.

In some optional embodiments, if the actual reception parameter is smaller than the expected reception parameter, it is determined that the indication information indicates that the sink node does not normally receive the traffic signal.

In this embodiment of the present application, the feedback signal includes an actual receiving parameter and the indication information, where the indication information is used to indicate whether the sink node receives the service signal normally.

Here, the second OAM information is carried in a second OAM frame, wherein the second OAM frame includes: a first field to indicate the actual reception parameter.

Further, the second OAM frame may also include at least one of:

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In this embodiment of the present application, a first field in a first OAM frame is a message field, where the message field includes a performance query message, where the performance query message is used to indicate actual receiving parameters and indication information, and the indication information is used to indicate whether the sink node receives the service signal normally.

Step 303: and sending the feedback signal to the source node, wherein the feedback signal is used for adjusting the first sending parameter corresponding to the target wavelength to a second sending parameter by the source node.

In this embodiment, the sink node sends the feedback signal to the source node. Here, it should be noted that the feedback signal transmitted from the sink node to the source node is transmitted along the reverse path of the optical link.

Taking fig. 1 as an example, the paths of the optical link are: node a → node B → node C → node Z, where the source node is node a and the sink node is node Z, and there are two intermediate nodes between node a and node Z, node B and node C respectively. The feedback signal is transmitted from node Z to node C, from node C to node B, from node B to node a, and finally node a completes the reception of the feedback signal.

In some optional embodiments, the sink node transmits the feedback signal to the source node using a target wavelength.

In the embodiment of the present application, the sending of the feedback signal by the sink node to the source node may be implemented by:

1) Loading the second OAM information to a carrier wave with a specific frequency to obtain a third signal;

2) Loading the third signal to a carrier wave with a target wavelength to obtain a feedback signal;

3) Transmitting the feedback signal to the sink node.

The feedback signal obtained in the above manner carries second OAM information, where the second OAM information carries actual receiving parameters and indication information (may be referred to as feedback information), and the indication information is used to indicate whether the host node normally receives the service signal.

According to the technical scheme of the embodiment of the application, the source node informs the destination node of the expected receiving parameters through OAM information; after the sink node determines the feedback signal according to the expected receiving parameter and the actual receiving parameter, the source node is informed of the feedback signal through OAM information, and the source node automatically adjusts the sending parameter according to the feedback signal sent by the sink node, so that the actual receiving parameter of the sink node reaches a normal state. In addition, the aim of reducing resource consumption can be achieved by adjusting the sending parameters on the premise that the system performance meets the indexes.

The technical solution of the embodiment of the present application is illustrated below by referring to specific application examples.

Application example 1

Referring to fig. 4, fig. 4 is a flowchart illustrating a parameter adjustment method for an optical network service of the present application example, including the following steps:

1) And (5) opening the service.

2) And the source node calculates the expected receiving parameters according to the actual sending parameters, encapsulates the expected receiving parameters in the OAM information and sends the OAM information to the host node.

3) And the host node determines feedback information according to the predicted receiving parameters and the actual receiving parameters, encapsulates the feedback information in the OAM information and sends the OAM information to the source node.

Here, the feedback information includes an actual reception parameter and indication information for indicating whether the sink node normally receives the traffic signal. Here, the sink node determines whether the traffic signal is normally received according to the expected reception parameter and the actual reception parameter.

4) And the source node adjusts the sending parameters according to the feedback information.

Application example two

Referring to fig. 5, fig. 5 is a flowchart of a method for adjusting parameters of an optical network service according to this application example, where the method includes the following steps:

step 501: the source node initiates a service establishment request, and configures the wavelength and the transmission parameters of the service.

Step 502: and the source node calculates expected receiving parameters according to the current sending parameters, encapsulates the expected receiving parameters into the OAM information, and sends the service signals carrying the OAM information to the destination node.

Here, the source node has an initial transmission parameter, such as the incoming fiber power, for each wavelength. Expected receive parameters, such as expected OSNR, corresponding to the transmit parameters may be calculated according to formula 58.

Here, the expected reception parameters are encapsulated into OAM information, wherein the OAM information includes a capability query message that includes the expected reception parameters. And loading the OAM information into the service signal in a top-tuning mode.

Step 503: the sink node receives the service signal and compares the actual receiving parameter of the service signal with the expected receiving parameter in the OAM information; if the comparison result indicates that the actual receiving parameter is not normal, go to step 504; if the comparison result indicates that the actual receiving parameters are normal, step 505 is executed.

Here, the actual receiving parameter is normal, which can also be understood as that the sink node receives the service signal normally; the actual reception parameter is not normal, which can also be understood as that the sink node does not normally receive the traffic signal.

Here, when a service signal is transmitted and received at a sink node, the corresponding received optical power, optical signal-to-noise ratio, and bit error rate may be detected by the sink node, because some uncertain factors exist in an optical link, an actual receiving parameter may be different from an expected receiving parameter, the sink node may first determine whether the actual receiving parameter is consistent with the expected receiving parameter, and if the actual receiving parameter is inconsistent or the actual receiving parameter indicates poor performance, for example, the bit error rate is too high, the sink node may determine that the service signal is not received normally, and encapsulate the actual receiving parameter into OAM information and send the OAM information in a reverse direction to the source node.

Step 504: the sink node packages the actual receiving parameters into the OAM information and sends a feedback signal carrying the OAM information to the source node; the source node adjusts the transmission parameters according to the actual reception parameters and performs step 502 again.

Here, after receiving the actual receiving parameter sent by the sink node, the source node may adjust the sending parameter corresponding to the actual receiving parameter, and at this time, the source node may have a new sending parameter. For example: if the actual OSNR is too low, the fiber-in optical power is properly increased; if the OSNR is normal but the error rate is too high, the incoming optical power is reduced appropriately.

By repeatedly executing the above steps 502 to 504, an appropriate transmission parameter is finally determined to ensure that the traffic signal is normally received at the sink node side.

Step 505: and starting the power consumption flow of the optimization system and executing the step 502.

Here, after the receiving parameter at the sink node side reaches the normal index, that is, after the sink node normally receives the service signal, the power consumption of the system may be reduced by reducing the fiber-in optical power for the purpose of optimizing the energy consumption of the system.

Fig. 6 is a schematic structural component diagram of a parameter adjusting device for optical network services according to an embodiment of the present application, which is applied to a source node, and as shown in fig. 6, the parameter adjusting device for optical network services includes:

a determining unit 601, configured to determine an expected receiving parameter corresponding to a target wavelength based on a first sending parameter corresponding to the target wavelength;

a sending unit 602, configured to send, to the sink node, a service signal according to the first sending parameter by using the target wavelength, where the service signal carries the expected receiving parameter;

a receiving unit 603, configured to receive a feedback signal sent by the sink node, where the feedback signal is determined based on the expected reception parameter and an actual reception parameter of the traffic signal;

an adjusting unit 604, configured to adjust the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the feedback signal.

a first field to indicate the expected reception parameter.

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the apparatus further comprises:

the sending unit 602 is configured to send the service signal to the sink node.

a first field to indicate the actual reception parameter.

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the adjusting unit is configured to obtain the actual reception parameter and the indication information based on the second OAM information in the feedback signal; if the indication information indicates that the host node does not normally receive the service signal, adjusting the first sending parameter corresponding to the target wavelength to a second sending parameter based on the actual receiving parameter, wherein the second sending parameter is greater than the first sending parameter; if the indication information indicates that the sink node normally receives the service signal, the first transmission parameter corresponding to the target wavelength is adjusted to be a second transmission parameter based on the actual receiving parameter, wherein the second transmission parameter is smaller than the first transmission parameter.

It should be understood by those skilled in the art that the above-mentioned related description of the communication apparatus of the embodiments of the present application can be understood by referring to the related description of the communication method of the embodiments of the present application.

Fig. 7 is a schematic structural composition diagram of a parameter adjustment apparatus for an optical network service provided in an embodiment of the present application, which is applied to a sink node, and as shown in fig. 7, the parameter adjustment apparatus for an optical network service includes:

a receiving unit 701, configured to receive a service signal sent by a source node, where the service signal carries an expected receiving parameter corresponding to a target wavelength;

a determining unit 702, configured to determine an actual receiving parameter of the traffic signal, and determine a feedback signal based on the expected receiving parameter and the actual receiving parameter;

a sending unit 703, configured to send the feedback signal by the source node, where the feedback signal is used for the source node to adjust the first sending parameter corresponding to the target wavelength to a second sending parameter.

a first field to indicate the expected reception parameter.

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

a first field to indicate the actual reception parameter.

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

In some optional embodiments, the determining unit 702 is configured to determine that the indication information indicates that the sink node normally receives the traffic signal if the actual reception parameter is greater than the expected reception parameter; if the actual receiving parameter is smaller than the expected receiving parameter, determining that the indication information indicates that the sink node does not normally receive the service signal.

Fig. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application. The communication device may be a source node or a sink node in an optical link. The communication device 800 shown in fig. 8 comprises a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, the communication device 800 may also include a memory 820. From the memory 820, the processor 810 can call and run a computer program to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

Fig. 9 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 900 shown in fig. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the chip 900 may further include a memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

Optionally, the chip 900 may further comprise an input interface 930. The processor 910 can control the input interface 930 to communicate with other devices or chips, and in particular, can obtain information or data transmitted by other devices or chips.

Optionally, the chip 900 may further include an output interface 940. The processor 910 can control the output interface 940 to communicate with other devices or chips, and in particular, can output information or data to other devices or chips.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method 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.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for adjusting parameters of optical network services is applied to a source node, and the method comprises the following steps:

2. The method of claim 1, wherein the traffic signal carries first operation, maintenance, and management (OAM) information, and wherein the first OAM information carries the expected reception parameters.

3. The method of claim 2, wherein the first OAM information is carried in a first OAM frame, wherein the first OAM frame comprises:

a first field to indicate the expected reception parameter.

4. The method of claim 3, wherein the first OAM frame further comprises at least one of:

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

5. The method of any of claims 2 to 4, wherein said transmitting traffic signals to said sink node using said target wavelength according to said first transmission parameter comprises:

loading the second signal to the first signal to obtain a service signal;

transmitting the traffic signal to the sink node.

6. The method according to any of claims 1 to 4, wherein the feedback signal carries second OAM information, and wherein the second OAM information carries the actual reception parameter and indication information, and wherein the indication information is used to indicate whether the traffic signal is normally received by the sink node.

7. The method of claim 6, wherein the second OAM information is carried in a second OAM frame, wherein the second OAM frame comprises:

a first field to indicate the actual reception parameter.

8. The method of claim 7, wherein the second OAM frame further comprises at least one of:

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

9. The method of claim 6, wherein the adjusting the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the feedback signal comprises:

if the indication information indicates that the host node does not normally receive the service signal, adjusting the first transmission parameter corresponding to the target wavelength to a second transmission parameter based on the actual reception parameter, wherein the second transmission parameter is greater than the first transmission parameter;

10. The method according to any of claims 1 to 4, wherein the reception parameter comprises at least one of: receiving optical power, optical signal-to-noise ratio and bit error rate.

11. The method according to any of claims 1 to 4, wherein the transmission parameters comprise at least one of: fiber-in optical power and output gain.

12. A method for adjusting parameters of optical network services is applied to a sink node, and the method comprises the following steps:

13. The method of claim 12, wherein the traffic signal carries first OAM information, and wherein the first OAM information carries the expected reception parameters.

14. The method of claim 13, wherein the first OAM information is carried in a first OAM frame, wherein the first OAM frame comprises:

a first field to indicate the expected reception parameter.

15. The method of claim 14, wherein the first OAM frame further comprises at least one of:

a third field for indicating a start position of the first OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

16. The method according to any of claims 12 to 15, wherein the feedback signal carries second OAM information, and wherein the second OAM information carries the actual reception parameters and indication information, and wherein the indication information is used to indicate whether the traffic signal is normally received by the sink node.

17. The method of claim 16, wherein the second OAM information is carried in a second OAM frame, wherein the second OAM frame comprises:

a first field to indicate the actual reception parameter.

18. The method of claim 17, wherein the second OAM frame further comprises at least one of:

a third field for indicating a start position of the second OAM frame;

a fifth field to indicate a length of the first field;

a sixth field to indicate a frame check code;

a seventh field to indicate an optical communication channel;

an eighth field to indicate a forward error correction code.

19. The method of claim 16, wherein determining a feedback signal based on the expected reception parameter and the actual reception parameter comprises:

if the actual receiving parameter is greater than the expected receiving parameter, determining that the indication information indicates that the sink node normally receives the service signal;

if the actual receiving parameter is smaller than the expected receiving parameter, determining that the indication information indicates that the sink node does not normally receive the service signal.

20. An apparatus for adjusting parameters of an optical network service, the apparatus being applied to a source node, the apparatus comprising:

21. An apparatus for adjusting parameters of optical network traffic, the apparatus being applied to a sink node, the apparatus comprising:

22. A communication device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory, to perform the method of any of claims 1 to 11, or to perform the method of any of claims 12 to 19.

23. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any of claims 1 to 11, or the method of any of claims 12 to 19.

24. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 11, or the method of any one of claims 12 to 19.