CN116366156A

CN116366156A - Service data transmission method, device and system

Info

Publication number: CN116366156A
Application number: CN202111611874.7A
Authority: CN
Inventors: 陈俊; 丁涛; 刘先华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2023-06-30

Abstract

A service data transmission method, device and system belong to the technical field of communication. The method comprises the following steps: after the first node acquires the channel data, preprocessing the channel data; and then, the channel data subjected to the preprocessing is transmitted. Wherein the preprocessing comprises the following steps: the first processing unit is controlled to be started in a first time period, so that the first processing unit is utilized to process digital signals on service data in the channel data; the duration of the first time period is positively correlated with the bandwidth of the traffic data. The method and the device can reduce the power consumption waste of the nodes, and are used for transmitting service data.

Description

Service data transmission method, device and system

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for transmitting service data.

Background

The optical communication technology is widely applied in the field of communication technology, and a node (or called an optical sending device) in an optical communication network, which emits an optical signal, can modulate service data to be transmitted onto the optical signal and transmit the optical signal to other nodes so as to realize communication.

Among the two nodes communicating with the optical signal, the node transmitting the optical signal performs digital signal processing on the service data to be transmitted, modulates the service data after digital signal processing onto the optical signal, and transmits the optical signal to the node receiving the optical signal. After receiving the optical signal, the node receiving the optical signal can demodulate the service data after digital signal processing from the received optical signal, and then perform digital signal processing on the service data after digital signal processing to obtain the service data.

However, the bandwidth of the service data is variable, and the portion of the node for performing digital signal processing on the service data is continuously in a high-power consumption state, so that there is a certain waste of power consumption of the node in some cases.

Disclosure of Invention

The application provides a service data transmission method, device and system, which can solve the problem that the power consumption of the current node has certain waste under some conditions, and the technical scheme is as follows:

in a first aspect, a service data transmission method is provided, where the method includes: after the first node acquires the channel data, preprocessing the channel data; and then, the channel data subjected to the preprocessing is transmitted. Wherein the preprocessing comprises the following steps: the first processing unit is controlled to be started in a first time period, so that the first processing unit is utilized to process digital signals on service data in the channel data; the duration of the first time period is positively correlated with the bandwidth of the traffic data.

In the method for transmitting service data provided in the embodiment of the present application, the first node may control the first processing unit to be turned on, so as to process the service data in the channel data. And, the on-time of the first processing unit is positively correlated with the bandwidth of the service data. Therefore, the first processing unit is not required to be in the on state all the time, so that the power consumption waste of the first processing unit is reduced, and the power consumption waste of the first node is reduced.

In addition, the transmission method of the service data does not reconfigure the first processing unit, so that the method does not cause service interruption. In addition, the method adjusts the power consumption of the node according to the bandwidth of the service data, and the granularity of the change of the bandwidth of the service data is smaller, so that the method has smaller granularity of adjusting the power consumption of the node and can realize fine adjustment of the power consumption of the node. In addition, the method is different from the method for transmitting the service data in the related technology, and enriches the transmission modes of the service data.

Optionally, the first processing unit is configured to encode the service data when turned on.

It should be noted that, the first processing unit is configured to perform digital signal processing on data (such as service data in channel data) that needs to be processed by the first processing unit when the first processing unit is turned on. Both the processing performed by the DSP and the processing performed by the encoding unit may be referred to as digital signal processing. The first processing unit may comprise at least one of a DSP and an encoding unit, such as an FEC encoding unit. When the first processing unit comprises a DSP, the digital signal processing for execution by the first processing unit at power-on comprises processing performed by the DSP. When the first processing unit comprises an encoding unit, the processing for execution by the first processing unit at start-up comprises encoding.

Optionally, when the first node controls the first processing unit to be turned on in the first period, a first timing signal may be generated according to a data type included in the channel data, and the first timing signal is input to the first processing unit, so that the first processing unit is turned on in the first period. The first timing signal is used for indicating the first processing unit to be turned on in the first time period and turned off in the time beyond the first time period, and the data type corresponding to the first time period comprises the data type of the service data. It can be seen that the first node may control the first processing unit to be turned on and off by the first timing signal, so that the power consumption of the first processing unit may vary with the bandwidth of the service data.

Further, the channel data obtained by the first node in the above description may include service data as an example. Alternatively, the channel data may also include other signals.

(1) Illustratively, the channel data has n paths, n is greater than or equal to 1, and m paths of channel data in the n paths of channel data further comprise: an indication signal, m is more than or equal to 1 and less than or equal to n; the indication signal in the m channel data is used for indicating whether at least one channel (such as one channel or multiple channels) of the n channel data includes the service data. When the channel data includes an indication signal, the first node may determine whether the channel data includes traffic data according to the indication signal. At this time, the preprocessing further includes: and determining whether the channel data comprises service data according to the indication signal.

Alternatively, m may be any integer between 1 and n. For example, m=1, one path of the channel data includes an indication signal, and the one indication signal is used for indicating: whether the at least one channel data in the n channels of channel data comprises the service data. Or, m=n, n paths of the channel data comprise n indication signals, and n paths of the channel data are in one-to-one correspondence with the n indication signals; for one channel data corresponding to one indication signal in the n indication signals, the channel data includes the indication signal, and the indication signal is used for indicating: whether the channel data includes the service data.

Optionally, for one of the channel data, when the channel data includes the service data, the indication signal in the m channel data is further used to indicate a position of the service data in the channel data. When the channel data includes an indication signal, the first node may determine whether the channel data includes traffic data according to the indication signal, and determine data to be processed in the channel data according to the indication signal. At this time, the preprocessing further includes: determining whether the channel data comprises service data according to the indication signal; when the channel data comprises service data, before the first processing unit is controlled to be started in the first time period, the service data in the channel data is determined according to the indication signal.

(2) Illustratively, when the channel data does not include the service data or the bandwidth of the data processed by the first processing unit is smaller than a target bandwidth, the channel data subjected to the preprocessing includes: redundant data; wherein, the data processed by the first processing unit is that: data, such as traffic data, or traffic data and indication signals, processed by the first processing unit are required.

The target bandwidth is a maximum working bandwidth of a transmitter in the first node for transmitting the channel data subjected to the preprocessing, and the channel data subjected to the preprocessing has the target bandwidth. It can be seen that, when the channel data acquired by the first node does not include service data, or the bandwidth of the data processed by the first processing unit is smaller than the target bandwidth, the first node may make the preprocessed channel data have the target bandwidth by adding redundant data.

And for any one parameter of at least one parameter of average power, peak-to-average ratio and spectrum bandwidth, the absolute value of the difference between the parameters of different data in the preprocessed channel data is smaller than the absolute value corresponding to the parameter. In other words, when the preprocessed channel data does not include redundant data, the parameters of different data in the preprocessed channel data are more similar (the absolute value of the difference between the parameters is smaller than the absolute value corresponding to the parameters); when the preprocessed channel data includes redundant data, the parameters of different data in the preprocessed channel data are also more similar (the absolute value of the difference between the parameters is smaller than the absolute value corresponding to the parameters). It can be seen that the redundant data is relatively similar to the parameters of other data (different from the redundant data) in the pre-processed channel data. In this way, although the bandwidth of the service data is changed, the bandwidth of the preprocessed channel data is kept at the target bandwidth, and parameters of different data in the preprocessed channel data are similar. Therefore, the bandwidth change of the service data does not cause the bandwidth and parameter change of the preprocessed channel data, and the preprocessed channel data has higher stability. When the first node and the second node are provided with the multiplexing channel, the mutual influence of signals in the multiplexing channel is smaller, and the probability of service interruption and network failure is reduced.

Further, when the channel data acquired by the first node includes service data, if the preprocessed channel data includes the redundant data, the redundant data may include at least part of the service data that is not processed by the first processing unit, or at least part of the service data that is processed by the first processing unit. At this time, after the node that receives the preprocessed channel data sent by the first node post-processes the data, if the error rate of the service data is greater than the target error rate, the node may perform data recovery on the service data according to the redundant data. Of course, when the channel data acquired by the first node includes service data, the redundant data in the channel data may not include at least part of the service data that is not processed by the first processing unit, or at least part of the service data that is processed by the first processing unit, which is not limited in this embodiment of the present application.

In the above, taking the case that a transmission channel is provided between nodes as an example, when a plurality of transmission channels are provided between nodes, the process of transmitting service data by the first node through each transmission channel can refer to the above.

Optionally, the channel data has multiple channels, and the multiple channel data includes first channel data and second channel data (two channels of channel data in the multiple channel data); the absolute value of the difference value between the center frequency of the first channel data and the target center frequency is larger than the absolute value of the difference value between the center frequency of the second channel data and the target center frequency; the target center frequency is the center frequency of the multichannel data; and the bandwidth of the service data in the first channel data is smaller than or equal to the bandwidth of the service data in the second channel data.

It should be noted that, in general, among the multipath channel data, the channel data whose center frequency is far from the target center frequency has a poor transmission effect, and the channel data whose center frequency is near to the target center frequency has a good transmission effect. Therefore, more service data are contained in the channel data with the center frequency close to the target center frequency, so that the transmission effect of the service data can be improved. According to the above, the method provided by the present application can be suitable for a scenario in which one or more transmission channels exist between the first node and the second node, so that the method can be suitable for nodes of a digital single carrier architecture and a digital multi-carrier architecture.

Optionally, before the first node obtains the channel data, the first node may further process the initial data to be mapped to obtain a service indication and the mapped initial data; and then, according to the service indication, identifying the service data for the initial data after mapping. When the first node acquires the channel data, the first node can acquire the channel data according to the identification result of the service data. The service indication is used for indicating whether the initial data after mapping comprises the service data or not, and when the initial data after mapping comprises the service data, the service indication is also used for indicating the position of the service data in the initial data after mapping. Optionally, the first node may not process the initial data to be mapped to obtain the service indication and the mapped initial data. At this time, the first node may receive the service indication sent by the other node and the mapped initial data, which is not limited in this application.

In a second aspect, a service data transmission method is provided, and the method includes: and the second node performs post-processing on the channel data after receiving the channel data. Wherein the post-processing includes: controlling a second processing unit to be started in a second time period, and performing digital signal processing on service data in the received channel data by using the second processing unit; the duration of the second time period is positively correlated with the bandwidth of the traffic data.

Since the second node can control the second processing unit to be turned on to process the service data in the received channel data, the turn-on duration of the second processing unit is positively correlated with the bandwidth of the service data. Therefore, the second processing unit is not required to be in the on state all the time, so that the power consumption waste of the second processing unit is reduced, and the power consumption waste of the second node is reduced.

In addition, the method adjusts the power consumption of the node according to the bandwidth of the service data, and the granularity of the change of the bandwidth of the service data is smaller, so that the method has smaller granularity of adjusting the power consumption of the node and can realize fine adjustment of the power consumption of the node. The method is different from the method for transmitting the service data in the related technology, and enriches the transmission modes of the service data.

Optionally, the second processing unit is configured to decode the service data when turned on.

It should be noted that, the second processing unit is configured to perform digital signal processing on data (such as service data in channel data) that needs to be processed by the second processing unit when the second processing unit is turned on. Both the processing performed by the DSP and the processing performed by the decoding unit may be referred to as digital signal processing. The second processing unit may comprise at least one of a DSP and a decoding unit, such as an FEC decoding unit. When the second processing unit comprises a DSP, the digital signal processing for execution by the second processing unit at power-on comprises processing performed by the DSP. When the second processing unit comprises a decoding unit, the processing for execution by the second processing unit at power-on comprises decoding.

Optionally, when the second node controls the second processing unit to be turned on in a second period of time, a second timing signal may be generated according to a data type included in the channel data, and the second timing signal may be input to the second processing unit, so that the second processing unit is turned on in the second period of time. The second timing signal is used for indicating the second processing unit to be turned on in the second time period and turned off in the time beyond the second time period, and the data type corresponding to the second time period comprises the service data.

Further, the channel data obtained by the second node in the above description may include service data as an example. Alternatively, the channel data may also include other signals.

(1) Illustratively, the channel data has n paths, n is greater than or equal to 1, and m paths of channel data in the n paths of channel data further comprise: an indication signal, m is more than or equal to 1 and less than or equal to n; the indication signal in the m-channel data is used for indicating: and whether at least one channel data in the n channels of the channel data comprises the service data or not. When the channel data includes an indication signal, the second node may determine whether the channel data includes traffic data according to the indication signal. In this case, the post-processing further includes: and determining whether the channel data comprises service data according to the indication signal.

Alternatively, m may be any integer between 1 and n. For example, m=1, one path of the channel data includes an indication signal, and the one indication signal is used for indicating: whether the at least one path of channel data comprises the service data; or, m=n, n paths of the channel data include n indication signals, n paths of the channel data are in one-to-one correspondence with the n indication signals, for one path of channel data corresponding to one indication signal in the n indication signals, the channel data include the indication signals, and the indication signals are used for indicating: whether the channel data includes the service data.

Optionally, for one of the channel data, when the channel data includes the service data, the indication signal in the m channel data is further used to indicate: the position of the service data in the channel data. When the channel data includes an indication signal, the second node may determine whether the channel data includes traffic data according to the indication signal, and determine the traffic data in the channel data according to the indication signal. In this case, the post-processing further includes: determining whether the channel data comprises service data according to the indication signal; when the channel data comprises service data, the service data in the channel data is determined according to the indication signal before the second processing unit is controlled to be started in the second time period.

(2) The channel data may also include redundant data, for example. At this time, after the post-processing is performed on the channel data after the pre-processing, the second node may further perform data recovery on the service data according to the redundancy data when the channel data further includes redundancy data and the error rate of the service data is greater than the target error rate, so as to improve reliability of service data transmission.

Optionally, after post-processing the channel data, the second node may further acquire a service instruction and initial data to be demapped, and process the initial data according to the service instruction to obtain the demapped initial data. Wherein when the channel data includes the service data, the initial data includes: the service data; the service indication is used for indicating whether the initial data comprises the service data; when the initial data includes the service data, the service indication is further used for indicating a position of the service data in the initial data. Of course, the second node may also send the service indication and the initial data to be demapped to other nodes instead of processing the initial data according to the service indication after obtaining the service indication and the initial data to be demapped, so that the other nodes process the initial data according to the service indication to obtain the initial data after demapping.

In a third aspect, a service data transmission apparatus is provided, where the service data transmission apparatus is a first node, and the service data transmission apparatus includes: the device comprises an acquisition module, a preprocessing module and a sending module. The acquisition module is used for acquiring channel data; the preprocessing module is used for preprocessing the channel data; the pretreatment comprises the following steps: controlling a first processing unit to be started in a first time period, and performing digital signal processing on service data in the channel data by using the first processing unit; the duration of the first time period is positively correlated with the bandwidth of the service data; and the sending module is used for sending the channel data subjected to the preprocessing.

The preprocessing module can control the first processing unit to be started so as to process the business data in the channel data. And, the on-time of the first processing unit is positively correlated with the bandwidth of the service data. Therefore, the first processing unit is not required to be in the on state all the time, so that the power consumption waste of the first processing unit is reduced, and the power consumption waste of the first node is reduced.

And the first node does not reconfigure the first processing unit, so that service interruption is not caused. In addition, the method adjusts the power consumption of the node according to the bandwidth of the service data, and the granularity of the change of the bandwidth of the service data is smaller, so that the power consumption adjustment granularity of the node is smaller, and the fine adjustment of the power consumption of the node can be realized. In addition, the transmission mode of the service data of the first node is different from the transmission mode of the service data in the related technology, so that the transmission mode of the service data is enriched.

Optionally, when the first processing unit is controlled to be turned on in a first period, the preprocessing module may generate a first timing signal according to a data type included in the channel data, and input the first timing signal to the first processing unit, so that the first processing unit is turned on in the first period. The first timing signal is used for indicating the first processing unit to be turned on in the first time period and turned off in the time beyond the first time period, and the data type corresponding to the first time period comprises the data type of the service data. It can be seen that the first node may control the first processing unit to be turned on and off by the first timing signal, so that the power consumption of the first processing unit may vary with the bandwidth of the service data.

Further, the channel data in the above description may include service data as an example. Alternatively, the channel data may also include other signals.

(1) Illustratively, the channel data has n paths, n is greater than or equal to 1, and m paths of channel data in the n paths of channel data further comprise: an indication signal, m is more than or equal to 1 and less than or equal to n; the indication signal in the m channel data is used for indicating whether at least one channel data in the n channel data comprises the service data.

Optionally, for one of the channel data, when the channel data includes the service data, the indication signal in the m channel data is further used to indicate a position of the service data in the channel data. When the channel data includes an indication signal, the preprocessing module may determine whether the channel data includes service data according to the indication signal, and determine data to be processed in the channel data according to the indication signal. At this time, the preprocessing module is further configured to: determining whether the channel data comprises service data according to the indication signal; when the channel data comprises service data, before the first processing unit is controlled to be started in the first time period, the service data in the channel data is determined according to the indication signal.

(2) Illustratively, when the channel data does not include the service data or the bandwidth of the data processed by the first processing unit is smaller than a target bandwidth, the channel data subjected to the preprocessing includes: redundant data.

The target bandwidth is a maximum working bandwidth of a transmitter in the first node for transmitting the channel data subjected to the preprocessing, and the channel data subjected to the preprocessing has the target bandwidth. It can be seen that, when the channel data acquired by the acquiring module does not include the service data, or the bandwidth of the data processed by the first processing unit is smaller than the target bandwidth, the preprocessing module may make the preprocessed channel data have the target bandwidth by adding the redundant data.

Optionally, the service data transmission device further includes: a mapping module and an identification module. The mapping module is used for processing the initial data to be mapped before the channel data are acquired to obtain service indication and the mapped initial data; the service indication is used for indicating whether the initial data after mapping comprises the service data or not, and when the initial data after mapping comprises the service data, the service indication is also used for indicating the position of the service data in the initial data after mapping; the identification module is used for carrying out identification on the service data on the initial data after mapping according to the service indication; the acquisition module is used for: and acquiring the channel data according to the identification result of the service data. Optionally, the first node may also not include a mapping module, where the first node may include a receiving module, configured to receive the service indication sent by the other node and the mapped initial data, which is not limited in this application.

In a fourth aspect, a service data transmission apparatus is provided, the service data transmission apparatus being a second node, the service data transmission apparatus including: a receiving module and a post-processing module. The receiving module is used for receiving the channel data; the post-processing module is used for carrying out post-processing on the channel data; the post-processing includes: controlling a second processing unit to be started in a second time period, and performing digital signal processing on service data in the received channel data by using the second processing unit; the duration of the second time period is positively correlated with the bandwidth of the traffic data.

Optionally, the post-processing module is configured to: generating a second time sequence signal according to the data type included in the channel data; and inputting the second time sequence signal to the second processing unit so as to enable the second processing unit to be started in the second time period. The second timing signal is used for indicating the second processing unit to be turned on in the second time period and turned off in the time beyond the second time period, and the data type corresponding to the second time period comprises the service data.

(1) Illustratively, the channel data has n paths, n is greater than or equal to 1, and m paths of channel data in the n paths of channel data further comprise: an indication signal, m is more than or equal to 1 and less than or equal to n; the indication signal in the m-channel data is used for indicating: and whether at least one channel data in the n channels of the channel data comprises the service data or not. When the channel data includes an indication signal, the post-processing module may determine whether the channel data includes traffic data according to the indication signal. In this case, the post-processing further includes: and determining whether the channel data comprises service data according to the indication signal.

Optionally, for one of the channel data, when the channel data includes the service data, the indication signal in the m channel data is further used to indicate: the position of the service data in the channel data. When the channel data includes an indication signal, the post-processing module may determine whether the channel data includes traffic data according to the indication signal, and determine the traffic data in the channel data according to the indication signal. At this time, the post-processing module is further configured to: determining whether the channel data comprises service data according to the indication signal; when the channel data comprises service data, the service data in the channel data is determined according to the indication signal before the second processing unit is controlled to be started in the second time period.

(2) The channel data may also include redundant data, for example. At this time, the service data transmission apparatus further includes: and the data recovery module is used for carrying out data recovery on the service data according to the redundant data when the channel data further comprises the redundant data and the error rate of the service data is larger than the target error rate after the post-processing of the channel data subjected to the pretreatment so as to improve the reliability of the service data transmission.

Optionally, the service data transmission device further includes: the system comprises an acquisition module and a demapping module. The acquisition module is used for acquiring a service instruction and initial data to be demapped after post-processing the channel data; when the channel data includes the service data, the initial data includes: the service data; the service indication is used for indicating whether the initial data comprises the service data; when the initial data comprises the service data, the service instruction is further used for indicating the position of the service data in the initial data; and the demapping module is used for processing the initial data according to the service instruction to obtain the demapped initial data. Of course, the service data transmission device may not include a demapping module, but include a sending module, configured to send the service indication and the initial data to be demapped to other nodes, so that the other nodes process the initial data according to the service indication, and obtain the initial data after demapping.

In a fifth aspect, there is provided a communication system comprising: a first node and a second node; the first node is the service data transmission device designed in any one of the third aspect or the fifth aspect; the second node is the service data transmission device according to any one of the fourth or sixth aspects.

In a sixth aspect, a chip is provided, the chip comprising programmable logic circuits and/or program instructions, which when the chip is run is adapted to implement the traffic data transmission method according to any one of the designs of the first or second aspects.

The technical effects of any one of the fifth aspect and the sixth aspect may be referred to the technical effects of the corresponding design of the first aspect to the fourth aspect, and will not be described herein.

Drawings

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of another communication system according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of another communication system according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of another communication system according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another communication system according to an embodiment of the present application;

Fig. 6 is a schematic structural diagram of another communication system according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication system according to an embodiment of the present application;

fig. 8 is a flowchart of a service data transmission method provided in an embodiment of the present application;

fig. 9 is a schematic structural diagram of another communication system according to an embodiment of the present application;

fig. 10 is a schematic diagram of opening and closing a first processing unit according to an embodiment of the present application;

fig. 11 is a schematic diagram of opening and closing a second processing unit according to an embodiment of the present application;

fig. 12 is a schematic diagram of channel data acquired by a first node according to an embodiment of the present application;

FIG. 13 is a schematic diagram of pre-processed channel data according to an embodiment of the present application;

fig. 14 is a schematic diagram of a spectrum of four-channel data according to an embodiment of the present application;

fig. 15 is a schematic view of opening and closing of another first processing unit according to an embodiment of the present application;

fig. 16 is a schematic view of opening and closing a second processing unit according to another embodiment of the present disclosure;

fig. 17 is a schematic diagram of opening and closing of another first processing unit according to an embodiment of the present application;

fig. 18 is a schematic diagram of opening and closing of another second processing unit according to an embodiment of the present disclosure;

Fig. 19 is a schematic view of opening and closing a first processing unit according to another embodiment of the present disclosure;

fig. 20 is a schematic diagram of opening and closing of another second processing unit according to an embodiment of the present application;

fig. 21 is a block diagram of a service data transmission device provided in an embodiment of the present application;

fig. 22 is a block diagram of another service data transmission device according to an embodiment of the present application.

Detailed Description

In order to make the principles and technical solutions of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiments of the present application provide a communication system that may be any type of communication system, such as a point-to-point communication system, or a point-to-multipoint communication system, or the like. The communication system includes a plurality of nodes. The nodes in the communication system may be communication devices (such as gateways, routers, servers, terminals, etc.) or may be part of the communication devices (such as a board in the communication devices, etc.).

Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application, and as shown in fig. 1, a plurality of nodes in the communication system include a first node 1 and a second node 2. It will be appreciated that the communication system may also comprise other nodes than the first node 1 and the second node 2, which is not limited in this embodiment of the present application. The first node 1 and the second node 2 are any two nodes in the communication system, and the first node 1 may transmit traffic data to the second node 2 for communication. Of course, taking the example that the first node 1 sends the service data to the second node 2, the second node 2 may also send the service data to the first node 1, which is not limited in the embodiment of the present application.

The first node 1 and the second node 2 may communicate with each other through signals, and traffic data transmitted between the first node and the second node may be carried on the signals for transmission.

Illustratively, the node may perform digital signal processing on the service data, and modulate the service data subjected to the digital signal processing onto a signal and transmit the signal to other nodes; the node receiving the signal can demodulate the data to obtain the service data which is processed by the digital signal, and then the service data which is processed by the digital signal to obtain the service data which is not processed by the digital signal.

Taking the example of the first node sending traffic data to the second node. With continued reference to fig. 1, the first node 1 comprises a transmitter 11 and the second node 2 comprises a receiver 21. Wherein the transmitter 11 comprises: the coding unit 111, the digital signal processor (digital signal processor, DSP) 112, and the signal transmitting unit 113, which are connected in this order, the receiver 21 includes: the signal receiving unit 211, the DSP 212 and the decoding unit 213 are sequentially connected. The encoding unit 111 may be a forward error correction code (forward error correction, FEC) encoding unit and the decoding unit 213 may be an FEC decoding unit. The signal transmitting unit 113 in the transmitter 11 is communicatively connected to the signal receiving unit 211 in the receiver 21.

In the transmitter 11, the encoding unit 111, the DSP 112 and the signal transmitting unit 113 may be located on the same device (e.g., a chip or a circuit, etc.), or may be located on different devices. For example, the encoding unit 111 and the DSP 112 may be integrated on the same chip (may be referred to as a DSP chip), and the signal transmitting unit 113 is located on another chip.

In the receiver 21, the signal receiving unit 211, the DSP 212 and the decoding unit 213 may be located on the same device (e.g., a chip or a circuit, etc.), or may be located on different devices. For example, the decoding unit 213 and the DSP 212 may be integrated on the same chip (may be referred to as a DSP chip), and the signal receiving unit 211 is located on another chip.

When the first node 1 sends service data to the second node 2, the service data is sequentially processed by the encoding unit 111 and the DSP unit 112, so as to obtain service data subjected to digital signal processing. After that, the signal transmitting unit 113 transmits the data bearer on a signal (a signal bearing traffic data) to the second node 2.

In the receiver 21 in the second node 2, the signal receiving unit 211 may receive the signal (e.g. receive the signal in a coherent manner or in a direct alignment manner) transmitted by the signal transmitting unit 113 in the first node 1, and recover the data carried by the signal. After that, the DSP unit 212 and the decoding unit 213 sequentially process the data to obtain service data which is not subjected to digital signal processing.

In the embodiment of the present application, the transmitter 11 includes: the encoding unit 111 and the DSP 112, and digital signal processing of the service data includes: the encoding unit 111 encodes the service data, and the DSP 112 processes the encoded service data, for example. Alternatively, the transmitter 11 may not include the encoding unit 111, and in this case, the digital signal processing performed on the data in the transmitter 11 may include: processing of data by DSP 112. Accordingly, the receiver 21 may not include the decoding unit 213, and in this case, the digital signal processing performed by the receiver 21 on the data includes: processing of traffic data by DSP 212. In other words, the digital signal processing of the data by the first node may or may not include encoding, and the digital signal processing of the data by the second node may or may not include decoding, which is not limited in this embodiment of the present application.

Further, the signal for communication between the first node 1 and the second node 2 may be an electromagnetic wave signal, an optical signal, or the like, which is not limited in the embodiment of the present application.

On the one hand, when communication is performed between the first node 1 and the second node 2 by optical signals, as shown in fig. 2, the signal transmitting unit 113 of the first node 1 and the signal receiving unit 211 of the second node 2 may be connected by an optical fiber 3, and the optical signals may be transmitted on the optical fiber 3. The optical fiber 3 may be provided with an optical amplifier (optical amplifier, OA) 4. In the first node 1, the signal transmitting unit 113 includes: a digital-to-analog converter (DAC) 1131 and an electro/optical (E/O) unit 1132 are connected, and the DAC1131 is connected to the DSP 112. The DAC1131 is configured to perform digital-to-analog conversion on the data output by the DSP 112, and the electrical/optical conversion unit 1132 is configured to perform electro-optical conversion on the data output by the DAC unit 1131 and transmit the data to an optical fiber. In the second node 2, the signal receiving unit 211 includes: an optical/electrical (O/E) unit 2111 and an analog-to-digital converter (ADC) 2112 are connected, and the ADC 2112 is connected to the DSP 212. The optical/electrical conversion unit 2112 is connected to the optical fiber 3, and is used for performing optical-electrical conversion on the optical signal from the optical fiber 3, and the ADC 2112 is used for performing analog-digital conversion on the data output by the optical/electrical conversion unit 2112 and inputting the data to the DSP unit 212.

In the embodiment of the present application, when the first node 1 and the second node 2 communicate through optical signals, the first node 1 and the second node 2 may be connected through an optical fiber. Alternatively, when the first node 1 and the second node 2 communicate by optical signals, the first node 1 and the second node 2 may not be connected by optical fibers, for example, when the first node 1 and the second node 2 are deployed on a satellite (or when one of the first node 1 and the second node 2 is deployed on a satellite and the other node is deployed on a ground receiving station in communication with the satellite), free-space optical communication is adopted between the two nodes, so that the two nodes may not be connected by optical fibers.

On the other hand, in the case of communication between the first node 1 and the second node 2 by an electromagnetic wave signal (a kind of wireless signal), as shown in fig. 3, the signal transmitting unit 113 of the first node 1 and the signal receiving unit 211 of the second node 2 may be connected by a wireless link over which the electromagnetic wave signal may be transmitted. In the first node 1, the signal transmitting unit 113 includes: DAC 1131, upconverting unit 1134, and antenna unit 1135 are connected in sequence, and DAC 1131 is connected to DSP 112. DAC 1131 is configured to perform digital-to-analog conversion on the data output by DSP 112, up-conversion unit 1134 is configured to up-convert the data output by DAC 1131, and antenna unit 1135 is configured to carry the data output by up-conversion unit 1134 on an electromagnetic wave signal and transmit the data to second node 2 via a wireless link. In the second node 2, the signal receiving unit 211 includes: an antenna unit 2113, a down-conversion unit 2114, and an ADC 2112 are sequentially connected, and the ADC 2112 is connected to the DSP 212. The antenna unit 2113 is used for recovering the data carried by the electromagnetic wave signal transmitted on the wireless link, the down-conversion unit 2114 is used for down-converting the data output by the antenna unit 2113, and the ADC 2112 is used for performing analog-to-digital conversion on the data output by the down-conversion unit 2114 and inputting the data to the DSP unit 212.

The signal for communication between the first node and the second node may be other signals than the electromagnetic wave signal and the optical signal. For example, the first node and the second node are connected through a cable, service data can be carried on an electrical signal transmitted on the cable, and communication can be performed between the first node and the second node through the electrical signal transmitted on the cable.

From the above, it is clear that the transmitter 11 in the first node 1 and the receiver 21 in the second node 2 are capable of communicating, a transmission channel exists between the transmitter 11 and the receiver 21, and data (including the above-mentioned traffic data) for transmission in the transmission channel may be referred to as channel data. With the development of communication technology, a multiplexing channel may exist between the first node 1 and the second node 2, where the communication system may be an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) communication system or a Nyquist wavelength division multiplexing (Nyquist wavelength division multiplexing, nyquist-WDM) communication system, etc.

The channel data transmitted in different transmission channels may be transmitted by the same transmitter 11 or may be transmitted by different transmitters 11. Accordingly, channel data transmitted in different transmission channels may be received by the same receiver 21 or may be received by different receivers 21.

Taking as an example that channel data transmitted in different transmission channels may be transmitted by different transmitters 11 and received by different receivers 21. At this time, the multiplexing channels are in one-to-one correspondence with the plurality of transmitters 11 in the first node 1 and in one-to-one correspondence with the plurality of receivers 21 in the second node 2. For a transmission channel and its corresponding transmitter 11 and receiver 21, channel data sent by the transmitter 11 is transmitted to the receiver 21 through the transmission channel.

By way of example, assuming that there are three transmission channels between the first node 1 and the second node 2, taking the transmitters 11 and the receivers 21 shown in fig. 2 as an example, as shown in fig. 4, the first node 1 includes three transmitters 11 in one-to-one correspondence with the three transmission channels, and the second node 2 includes three receivers 21 in one-to-one correspondence with the three transmission channels. When the first node 1 comprises a plurality of transmitters 11 and the second node 2 comprises a plurality of receivers 21, a wavelength selective switch (wavelength selective switching, WSS) 5 may also be provided on the optical fibre between the first node 1 and the second node 2. The structure and function of each transmitter 11 in fig. 4 may refer to the structure and function of the transmitter 11 shown in fig. 2, and the structure and function of each receiver 21 in fig. 4 may refer to the structure and function of the receiver 21 shown in fig. 2.

As another example, assume that there are three transmission channels between the first node 1 and the second node 2, taking the transmitters 11 and the receivers 21 shown in fig. 3 as an example, as shown in fig. 5, the first node 1 includes three transmitters 11 in one-to-one correspondence with the three transmission channels, and the second node 2 includes three receivers 21 in one-to-one correspondence with the three transmission channels. The structure and function of each transmitter 11 in fig. 5 may refer to the structure and function of the transmitter 11 shown in fig. 3, and the structure and function of each receiver 21 in fig. 5 may refer to the structure and function of the receiver 21 shown in fig. 3.

Further, the first node 1 may further comprise a traffic processing unit, and the second node 2 may also comprise a traffic processing unit, whether there is a path or a multiplexing path between the first node 1 and the second node 2.

Illustratively, as shown in fig. 6, on the basis of fig. 1, the first node 1 may further comprise a traffic processing unit 12, and the second node 2 may also comprise a traffic processing unit 22.

The service processing unit 12 in the first node 1 includes: an initial data acquisition unit 121 and a mapping unit 122, the mapping unit 122 being connected to the transmitter 11. Wherein, the initial data acquisition unit 121 is configured to acquire initial data to be transmitted, and output the initial data to the mapping unit 122; the mapping unit 122 is configured to output data that can be processed by the transmitter 11 (referred to as mapped initial data) according to the input initial data, and the transmitter 11 is configured to perform the above-described processing on service data in the data.

The data output by the initial data acquisition unit 121 may or may not include service data. When the data output by the initial data acquisition unit 121 includes service data, if the bandwidth of the service data is smaller, the data output by the initial data acquisition unit 121 also includes overhead data. When the data output by the initial data acquisition unit 121 does not include traffic data, the data output by the initial data acquisition unit 121 includes overhead data.

The mapping unit 122 may encapsulate the data input to the mapping unit 122 into output data according to a preset frame format when outputting the data according to the input data. The frame format is, for example, the format of an optical transport network (optical transport network, OTN) frame. If the data input to the mapping unit 122 includes service data, the mapping unit 122 may map (e.g. multiplex) the service data into service data output by the mapping unit 122. If the bandwidth of the traffic data output by the mapping unit 122 is smaller, the data output by the mapping unit 122 also includes overhead data.

Illustratively, it is assumed that the data (initial data) input to the mapping unit 122 contains the service data as A1. The mapping unit 122 may map the service data A1 to the service data B1 output. When the bandwidth of the service data B1 is smaller, the mapping unit 122 also outputs the overhead data B2, and at this time, the mapped initial data output by the mapping unit 122 is b1+b2. When the bandwidth of the service data B1 is large, the data output by the mapping unit 122 is B1 and does not include B2. When the data input to the mapping unit 122 does not include the service data, the data output from the mapping unit 122 is B2 and does not include B1.

The traffic processing unit 22 in the second node 2 comprises: a demapping unit 221 and an initial data processing unit 222, the demapping unit 221 being connected to the receiver 21. The receiver 21 may obtain the mapped initial data according to the data output by the decoding unit 213. The demapping unit 221 is configured to obtain the above-mentioned (pre-mapping) initial data from the data output from the receiver 21. The initial data processing unit 222 is configured to process the data output from the demapping unit 221.

The process of outputting data by the demapping unit 221 according to the input data is reciprocal to the process of outputting data by the mapping unit 122 according to the input data, which is not described herein in detail.

As can be seen, in the first node 1, the traffic processing unit 12 is arranged to provide the transmitter 11 with data for transmission in the transmission channel; in the second node 2, the traffic processing unit 22 processes the data transmitted in the transmission channel provided by the receiver 21.

The service processing unit has a corresponding relation with the transmission channel. When a path of transmission channel is provided between the first node 1 and the second node 2, the first node 1 and the second node 2 each include a service processing unit corresponding to the path of transmission channel. When a multiplexing channel is provided between the first node 1 and the second node 2, the first node 1 and the second node 2 each include a service processing unit corresponding to the multiplexing channel. And, the service processing units corresponding to different transmission channels may be the same or different.

Taking the case that there are multiple transmission channels between the first node 1 and the second node 2, and service processing units corresponding to different transmission channels are different, as shown in fig. 7, on the basis of fig. 4, each of the first node 1 and the second node 2 may further include three service processing units, such as three service processing units 12 in the first node 1, and three service processing units 22 in the second node 2. The function and structure of each service processing unit 12 in the first node 1 in fig. 7 may refer to the function and structure of the service processing unit 12 in the first node 1 in fig. 6; the function and structure of each service processing unit 22 in the second node 2 in fig. 7 may refer to the function and structure of the service processing unit 22 in the second node 2 in fig. 6, and the embodiments of the present application are not described herein.

In the embodiment of the present application, the service processing unit is located inside the first node and the second node, and alternatively, the service processing unit may not be located outside the first node and the second node, which is not limited in the embodiment of the present application.

Further, the service data may be 100 Gigabit Ethernet (GE) data, 200GE data, 400GE data, or flexible optical transport network (flexible optical transport network, flex OTN) data. The embodiment of the application does not limit the type of the service data.

During the communication between the first node 1 and the second node 2, the bandwidth (also referred to as processing bandwidth) of the data for processing by the transmitter 11 in the first node 1 and the receiver 21 in the second node 2 is fixed, such as 100 gigabits/s (Gigabit/s), 200Gbit/s, 400Gbit/s or 800 Gbit/s. In this way, the processing power and power consumption of the transmitter 11 and the receiver 21 are fixed. However, the bandwidth of the traffic data is variable, which results in a certain waste of power consumption by the first node 1 and the second node 2. And, as the network bandwidth increases explosively, the waste of power consumption by the first node 1 and the second node 2 becomes more and more serious. Therefore, how to effectively reduce the power consumption of the node on the premise of meeting the network bandwidth requirement is very important for reducing the operation cost, building green earth, achieving carbon peak and carbon neutralization.

In the related art, in order to reduce the power consumption waste of the node, at least one parameter of the coding mode, the signal code pattern and the signal baud rate of the transmitter can be modified according to the bandwidth of the service data, so that the processing bandwidth of the transmitter is changed, the power consumption of the transmitter is changed, and the power consumption waste of the transmitter is reduced.

For example, when the at least one parameter is modified, the coding mode and the signal code pattern can be kept unchanged, and the signal baud rate is doubled, so that the processing bandwidth of the transmitter is doubled; or, the coding mode and the signal baud rate are kept unchanged, and the signal code pattern is changed from a quadrature phase shift keying (quadrature phase shift keying, QPSK) code pattern to a 16quadrature amplitude modulation (16quadrature amplitude modulation,16QAM) code pattern, so that the processing bandwidth of the transmitter is doubled; alternatively, the signal baud rate is kept unchanged, and the signal code pattern is changed from a QPSK code pattern to a 64quadrature amplitude modulation (64quadrature amplitude modulation,64QAM) code pattern, so that the processing bandwidth of the transmitter is doubled.

However, this solution, although capable of reducing the power consumption waste of the transmitter, the transmitter is still continuously in operation, so that the transmitter still has a certain power consumption waste. And, the service needs to be interrupted when the parameters are modified. In addition, when a multiplexing channel exists between the first node and the second node, and service data on the multiplexing channel can affect each other (for example, the multiplexing channel passes through the same optical fiber), the scheme can cause that the characteristic difference of the service data transmitted in different transmission channels is larger (for example, the average power, the peak-to-average ratio and the difference of spectrum bandwidths are larger) due to the unstable bandwidth of the service data, and the service data in the multiplexing channel can affect each other, so that the error rate of the service data is higher. In severe cases, traffic data of some transmission channels may not be transmitted from the first node to the second node, resulting in traffic interruption and network failure.

In addition, in the related art, in order to reduce the power consumption waste of the node, a digital multi-carrier architecture can be adopted in the node, in the architecture, service data can be carried by a plurality of digital sub-carriers, when the bandwidth of the service data is large, the digital sub-carriers carrying the service data are increased, and the power consumption of the node is increased; when the bandwidth of the service data is reduced, the digital sub-carriers carrying the service data are reduced, and the power consumption of the node is reduced. This causes the power consumption of the node to vary with the bandwidth of the traffic data.

However, the granularity of adjusting the power consumption of the node is related to the number of the digital subcarriers, so that the granularity of adjusting the power consumption of the node is larger, and fine adjustment of the power consumption of the node cannot be realized. And when a multiplexing channel exists between the first node and the second node and service data on the multiplexing channel can be mutually influenced, if the number of the digital subcarriers is changed, the average power and spectrum bandwidth of the service data sent by the transmitter are changed, so that the service data in the multiplexing channel can be mutually influenced, and the error rate of the service data is higher. In severe cases, traffic data of some transmission channels may not be transmitted from the first node to the second node, resulting in traffic interruption and network failure. Moreover, the scheme is only suitable for the nodes adopting the digital multi-carrier architecture, and cannot be suitable for the nodes adopting the digital single-carrier architecture. In addition, the peak-to-average ratio of the digital multi-carrier signal is high, the linearity requirements of the DAC, the photoelectric device (such as an optical/electrical conversion unit and an electrical/optical conversion unit) and the ADC are high, so that the cost of the node is high, and the scheme is limited in application field.

The embodiment of the application provides a service data transmission method which can reduce the power consumption waste of nodes. In addition, the method is different from the method for transmitting the service data in the related technology, and enriches the transmission modes of the service data. Compared with the related art, the service data transmission method does not cause service interruption. The method can also have a multiplexing channel between the first node and the second node, and when signals on the multiplexing channel can affect each other, the method reduces the interaction of service data in the multiplexing channel, and reduces the probability of service interruption and network failure. According to the method, the power consumption of the node is adjusted according to the bandwidth of the service data, and the granularity of the change of the bandwidth of the service data is smaller, so that the method has smaller granularity of adjusting the power consumption of the node and can realize fine adjustment of the power consumption of the node. The method can also be suitable for the scene that one or multiple transmission channels exist between the first node and the second node, so that the method can be suitable for the nodes of a digital single carrier architecture, has no special requirements on DAC, photoelectric devices and ADC, and is wide in application scene.

Fig. 8 is a flowchart of a service data transmission method according to an embodiment of the present application, where the service data transmission method is performed by the first node and the second node, and a path transmission channel between the first node and the second node is taken as an example for explanation. As shown in fig. 8, the method may include:

S101, a first node processes initial data to be mapped to obtain service indication and mapped initial data; the service indication is used for indicating whether the mapped initial data comprises service data or not, and when the mapped initial data comprises service data, the service indication is also used for indicating the position of the service data in the mapped initial data.

By way of example, taking the communication system shown in fig. 6 as an example, as shown in fig. 9, the first node 1 may acquire initial data to be mapped using the initial data acquisition unit 121 before S101. In S101, the first node 1 may output the traffic indication and the mapped initial data according to the initial data using the mapping unit 122.

The process of the mapping unit 122 outputting the mapped initial data according to the input initial data may refer to the description of the mapping unit 122 in fig. 6 in the above description, and the embodiments of the present application are not repeated here.

It should be noted that the data output by the mapping unit 122 may or may not include service data, and when the data output by the mapping unit 122 includes service data, the amount of service data included in the data output by the mapping unit 122 is not fixed. In this embodiment of the present application, the mapping unit 122 may further output a service indication, where the service indication is used to indicate whether the mapped initial data includes service data, and indicate a location of the service data in the mapped initial data when the mapped initial data includes service data.

S102, the first node identifies service data of the mapped initial data according to the service instruction.

After the mapped initial data and the service indication are obtained, the first node can identify the service data of the mapped initial data according to the service indication. For example, the first node may first determine whether the mapped initial data includes service data according to the service indication, and when determining that the mapped initial data includes service data, the first node may further determine, according to the service indication, a location where the service data in the mapped initial data is located, so as to identify the service data in the mapped initial data.

For example, as shown in fig. 9, the transmitter 11 may include a shaping unit 114, and the mapping unit 122 is connected to the shaping unit 114 in the transmitter 11, and the traffic indication output by the mapping unit 122 and the mapped initial data are transmitted to the shaping unit 114. The shaping unit 114 may identify the service data for the mapped initial data according to the service indication.

S103, the first node acquires channel data according to the identification result of the service data.

After the first node identifies the service data of the mapped initial data, the first node can acquire channel data for transmission in the transmission channel according to the identification result.

For example, when the mapped initial data includes service data, the first node may extract the service data from the mapped initial data and obtain channel data including the service data according to the service data. When the mapped initial data does not include traffic data, the channel data does not include traffic data, and the channel data may include some padding data.

Alternatively, if the mapped initial data includes service data and the bandwidth of the service data is a preset data bandwidth, as shown in case 1 of fig. 10, the channel data includes the service data; if the bandwidth of the traffic data is smaller than the data bandwidth, the channel data may include not only the traffic data but also the stuffing data as in case 2 shown in fig. 10, and the sum of the bandwidths of the traffic data and the stuffing data is the data bandwidth. If the mapped initial data does not include traffic data, the channel data includes padding data having the data bandwidth as in case 3 shown in fig. 10. Optionally, when the mapped initial data includes service data and padding data, the padding data may include at least part of the service data, or there may be other implementations of the padding data, which are not limited in this embodiment of the present application. In fig. 10, the case 2 and the case 3 are taken as examples, and the channel data contains padding data, but of course, the case 2 and the case 3 do not contain padding data.

In addition, when the first node 1 has the shaping unit 114 as shown in fig. 9, the first node 1 may perform S103 with the shaping unit 114 therein to acquire the channel data.

S104, the first node preprocesses the channel data; the pretreatment comprises the following steps: the first processing unit is controlled to be started in a first time period, so that the first processing unit is utilized to process digital signals on service data in the channel data; the duration of the first time period is positively correlated with the bandwidth of the data that needs to be processed with the first processing unit.

With continued reference to fig. 9, the first node 1 includes a first processing unit, where the first processing unit is configured to perform digital signal processing on data (such as service data in channel data) that needs to be processed by the first processing unit when turned on. In fig. 9, the first processing unit includes a DSP and an encoding unit (such as an FEC encoding unit), and optionally, the first processing unit may also include at least one of the DSP and the encoding unit.

Both the processing performed by the DSP and the processing performed by the encoding unit may be referred to as digital signal processing. When the digital signal processing for execution at the time of the first processing unit being turned on includes processing performed by the DSP, the first processing unit may include the DSP 112 in the transmitter 11. When the processing for execution by the first processing unit at the time of start-up includes encoding, the first processing unit includes an encoding unit (such as an FEC encoding unit) for executing the encoding.

After obtaining the channel data, the first node may pre-process (also referred to as preprocessing) the channel data. When preprocessing the channel data, the first node may control the first processing unit to be turned on in a first period according to the service data in the channel data, so as to process the service data in the channel data (such as the encoding performed by the encoding unit and the processing performed by the DSP) by using the first processing unit. And, the duration of the first processing unit being turned on (duration of the first period) is positively correlated with the bandwidth of the traffic data. It should be noted that, here, taking an example that the channel data includes data (such as service data) that needs to be processed by the first processing unit, alternatively, when the channel data does not include data that needs to be processed by the first processing unit, the first node may also control the first processing unit to be turned off.

The first node inputs the channel data into the first processing unit in the process of preprocessing the channel data, and the first node can control whether the first processing unit is started or not according to whether the channel data contains data which needs to be processed by the first processing unit. The first processing unit can process the data when the first processing unit is turned on, and cannot process the data when the first processing unit is turned off (not turned on).

For example, taking an example that the data to be processed by the first processing unit includes service data, when the channel data includes service data, the first node may control the first processing unit to be turned on in a first period of time, so as to process the service data by using the first processing unit. The first processing unit processes the service data in a first time period. During times outside of the first period of time, the first processing unit is shut down.

For example, when the first node controls the first processing unit to be turned on in the first period, the first node may generate a first timing signal according to a data type included in the channel data, and input the first timing signal to the first processing unit, so that the first processing unit is turned on in the first period. The first timing signal is used for indicating that the first processing unit is turned on in a first time period and turned off in a time outside the first time period, and the data type corresponding to the first time period includes: the data type of the data (e.g. traffic data) to be processed by the first processing unit is required.

In addition, the first node may control the first processing unit to be turned off when the channel data does not include data that needs to be processed with the first processing unit. For example, when the channel data does not include data that needs to be processed by the first processing unit, the first node may generate a closing timing signal for indicating that the first processing unit is closing, and input the closing timing signal to the first processing unit, so that the first processing unit remains closing according to the closing timing signal.

Taking the channel data as an example, as shown in fig. 10. In case 1 and case 2 of fig. 10, the first node may input the first timing signal to the first processing unit. In case 1, the first node inputs a first timing signal of the first processing unit for indicating: the first processing unit is started in a processing time period corresponding to the service data; the first timing signal input to the first processing unit in case 2 is used to indicate: the first processing unit is started in a processing time period corresponding to the service data, and is closed in a processing time period corresponding to the filling data. In case 3 of fig. 10, the first node may input a shutdown timing signal to the first processing unit, the shutdown timing signal being for indicating: the first processing unit is turned off in a processing time period corresponding to the padding data. Wherein, a processing time period corresponding to the data refers to: the first processing unit processes the time period of the data.

Optionally, referring to fig. 9, the first node 1 further includes a first control unit 115, where the first control unit 115 is connected to both the shaping unit 114 and the first processing unit, and channel data output by the shaping unit 114 is input to the first control unit 115. The first node 1 may control the on and off of the first processing unit according to the channel data using the first control unit 115 in S104.

Further, the first period is a period in which the first processing unit processes data to be processed by the first processing unit, and the duration of the first period is positively correlated with the bandwidth of the data. For example, when the bandwidth of the data is large, the first period of time is long and the first processing unit is on for a long time. When the bandwidth of the data is smaller, the first time period is smaller and the first processing unit is turned on for a shorter time. And, when the channel data does not include the data, the first processing unit is turned off. It can be seen that the duration of the first processing unit being turned on has a positive correlation with the bandwidth of the data.

When the data to be processed by the first processing unit comprises service data, and the time length of the first processing unit is in positive correlation with the bandwidth of the data to be processed by the first processing unit, the time length of the first processing unit is in positive correlation with the bandwidth of the service data. Therefore, the first node can correspondingly control whether the first processing unit is started or not and control the starting time of the first processing unit according to the change of the service data, so that the power consumption waste caused by the continuous starting of the first processing unit is avoided. For example, when the first processing unit comprises a DSP, the present application can avoid power consumption waste caused by continuous start of the DSP; when the first processing unit comprises the coding unit, the power consumption waste caused by continuous starting of the coding unit can be avoided.

S105, the first node sends the preprocessed channel data to the second node.

After preprocessing the channel data, the first node may send the preprocessed channel data to the second node. For example, with continued reference to fig. 9, the first processing unit in the first node 1 may input the preprocessed channel data into the signal transmitting unit 113, so as to transmit the preprocessed channel data on a signal to the second node 2 by using the signal transmitting unit 113.

Accordingly, in S105, the second node may receive the channel data (the preprocessed channel data transmitted by the first node). For example, referring to fig. 9, the second node 2 may receive the preprocessed channel data using the signal receiving unit 211.

In this embodiment, the first node sends the preprocessed channel data to the second node, and the channel data received by the second node is the preprocessed channel data sent by the first node. Optionally, the first node may also send the preprocessed channel data to other nodes, and the channel data received by the second node may also send the preprocessed channel data to other nodes. In general, a first node will send pre-processed channel data and a second node will receive the channel data.

S106, the second node performs post-processing on the received channel data; the post-treatment comprises the following steps: controlling the second processing unit to be started in a second time period, and performing digital signal processing on service data in the received channel data by using the second processing unit; the duration of the second time period is positively correlated with the bandwidth of the traffic data.

With continued reference to fig. 9, the second node 2 includes a second processing unit, where the second processing unit is configured to perform digital signal processing on service data. In fig. 9, the second processing unit includes a DSP and a decoding unit (such as an FEC decoding unit), and optionally, the second processing unit may also include at least one of the DSP and the decoding unit.

When the digital signal processing for execution at the time of the second processing unit being turned on includes processing performed by the DSP, the second processing unit may include the DSP 212 in the receiver 21. When the digital signal processing for execution at the time of the second processing unit being turned on includes the processing performed by the encoding unit, the second processing unit includes a decoding unit (such as an FEC decoding unit) for performing decoding. The decoding may also be referred to as digital signal processing, and thus, the processing performed by the second processing unit includes at least one of the processing performed by the decoding unit and the processing performed by the DSP, which may be collectively referred to as digital signal processing.

The second node needs to post-process the received channel data (the pre-processed channel data sent by the first node). Wherein the post-processing comprises: and controlling the second processing unit to be started in a second time period, so as to perform digital signal processing on the service data (the service data processed by the first processing unit in the first node) in the received channel data by using the second processing unit. It should be noted that, taking the example that the channel data includes service data as an example, optionally, the second node may also control the second processing unit to be turned off when the channel data does not include service data.

When the second node performs post-processing on the received channel data, the received channel data may be input to the second processing unit (for example, the channel data output by the signal receiving unit is input to the second processing unit), and whether the second processing unit is turned on is controlled according to whether the channel data includes service data. When the second processing unit is turned on, the second processing unit can process the service data, and when the second processing unit is turned off (not turned on), the first processing unit cannot process the service data.

For example, when the channel data received by the second node includes service data, the second node may control the second processing unit to be turned on for a second period of time to process the service data with the second processing unit. During times outside of this second period of time, the second processing unit is shut down.

For example, when the second node controls the second processing unit to be turned on in the second period, the second node may generate a second timing signal according to the data type included in the received channel data, and input the second timing signal to the second processing unit, so that the second processing unit is turned on in the second period. The second timing signal is used for indicating the second processing unit to be turned on in a second time period and turned off in a time period outside the second time period, and the data type corresponding to the second time period comprises the data type of the service data.

In addition, the second processing unit is turned off when the second node receives that the channel data does not include the traffic data. For example, when the received channel data does not include traffic data, the second node may generate a shutdown timing signal for indicating that the second processing unit is shutdown, and input the shutdown timing signal to the second processing unit, so that the second processing unit remains shutdown according to the shutdown timing signal.

Assume that channel data received by the second node is as shown in fig. 11. Then, in case 1 and case 2 of fig. 11, the second node may input the second timing signal to the second processing unit. In case 1 the second node inputs a second timing signal of the second processing unit for indicating: the second processing unit is started in a processing time period corresponding to the service data; the second timing signal input to the second processing unit in case 2 is used to indicate: the second processing unit is started in a processing time period corresponding to the service data, and is closed in a processing time period corresponding to the filling data. In case 3 of fig. 11, the second node may input a shutdown timing signal for instructing the second processing unit to shutdown in a processing period corresponding to the stuffing data to the second processing unit.

Optionally, referring to fig. 9, the second node 2 further includes a second control unit 215, where the second control unit 215 is connected to both the signal receiving unit 211 and the second processing unit, and in S106, the second node 2 may control the second processing unit to be turned on and off by using the second control unit 215.

Further, the second period is a period in which the second processing unit processes the service data, and the duration of the second period is positively correlated with the bandwidth of the service data. For example, when the bandwidth of the service data is larger, the second period of time is longer, and the second processing unit is turned on for a longer time. When the bandwidth of the service data is smaller, the second time period is smaller, and the second processing unit is started for a shorter time. And, when the preprocessed channel data does not include traffic data, the second processing unit is turned off. It can be seen that the duration of the second processing unit being turned on is in positive correlation with the bandwidth of the service data.

According to the above, the second node can correspondingly control whether the second processing unit is turned on or not and control the duration of the second processing unit being turned on according to the change of the service data, so as to avoid the waste of power consumption caused by the continuous turning on of the second processing unit. For example, when the second processing unit comprises a DSP, the present application can avoid power consumption waste caused by continuous start of the DSP; when the second processing unit comprises the DSP and the coding unit, the power consumption waste caused by continuous starting of the DSP and the coding unit can be avoided.

S107, the second node acquires a service instruction and initial data to be demapped; when the channel data received by the second node includes service data, the initial data includes: the service data; a service indication for indicating whether the initial data includes the service data; the traffic indication is also used to indicate the location of the traffic data in the initial data when the initial data includes the traffic data.

After the second node performs post-processing on the received channel data, the second node may acquire the service indication and the initial data to be demapped according to the post-processing result. The initial data to be demapped may be the initial data mapped in S101.

Illustratively, as shown in fig. 9, the receiver 21 may include a deplastic unit 216, the deplastic unit 216 being connected to a second processing unit in the receiver 21. In S107, the second node 2 may acquire the post-processed channel data output by the second processing unit by using the reshaping unit 216, and restore the data according to the format of the initial data mapped in S101 (e.g. the second control unit 215 controls the reshaping unit 216 to acquire and restore the data) according to the data, so as to obtain initial data to be demapped. Meanwhile, the second node 2 may also obtain the traffic indication by using the depulping unit 216 (e.g., the second control unit 215 controls the depulping unit 216 to obtain the traffic indication). The traffic indication is used for indicating whether the initial data to be demapped comprises traffic data; when the initial data to be demapped comprises service data, the service indication is further used for indicating the position of the service data in the initial data to be demapped. Alternatively, the above-mentioned traffic indication may be obtained by the second control unit 215 based on the channel data instead of the reshaping unit 216 (this is not shown in fig. 9).

S108, the second node processes the initial data to be demapped according to the service instruction to obtain the initial data after demapping.

As shown in fig. 9, after obtaining the initial data to be demapped and the service indication, the second node 2 may further process the initial data according to the service indication by using the demapping unit 221 to obtain demapped initial data (initial data to be mapped in S101). After that, the second node 2 may further process the initial data output from the demapping unit 221 using the initial data processing unit 222.

The demapping unit 221 may determine whether the initial data to be demapped includes service data according to the service indication, and determine a position of the service data in the initial data when the service indication indicates that the initial data includes the service data. Then, the demapping unit 221 may obtain demapped initial data according to the initial data. The process of the demapping unit 221 obtaining the demapped initial data according to the initial data to be demapped is reciprocal to the process of the mapping unit 122 obtaining the mapped initial data according to the initial data to be mapped in S101, which is not described herein in detail.

In summary, in the method for transmitting service data provided in the embodiment of the present application, the first node may control the first processing unit to be turned on, so as to process the service data in the channel data. And, the on-time of the first processing unit is positively correlated with the bandwidth of the service data. Therefore, the first processing unit is not required to be in the on state all the time, so that the power consumption waste of the first processing unit is reduced, and the power consumption waste of the first node is reduced.

In addition, the second node may control the second processing unit to be turned on to process the service data in the received channel data, and the turn-on duration of the second processing unit is positively correlated with the bandwidth of the service data. Therefore, the second processing unit is not required to be in the on state all the time, so that the power consumption waste of the second processing unit is reduced, and the power consumption waste of the second node is reduced.

In addition, the transmission method of the service data does not reconfigure the first processing unit, so that the method does not cause service interruption. In addition, the method adjusts the power consumption of the node according to the bandwidth of the service data, and the granularity of the change of the bandwidth of the service data is smaller, so that the method has smaller granularity of adjusting the power consumption of the node and can realize fine adjustment of the power consumption of the node.

It should be noted that, the sequence of the steps in the method embodiment provided in the embodiment of the present application may be appropriately adjusted, and the steps may also be increased or decreased accordingly according to the situation. For example, the method embodiment provided in the embodiment of the present application may not include S101, S102, S107, and S108 described above. Any method that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered in the protection scope of the present invention, and thus will not be repeated.

Further, in the above embodiment, the channel data acquired by the first node may include service data as an example. Alternatively, the channel data may also include other signals.

(1) The channel data acquired by the first node further includes: an indication signal.

As shown in fig. 12, each channel data acquired by the first node includes an indication signal on the basis of the three cases in fig. 10. Alternatively, in the channel data acquired by the first node, the indication signal may be used to send before or after the service data, which is not limited in the embodiment of the present application.

The indication signal is used for indicating whether the channel data comprises service data. Optionally, when the channel data includes service data, the indication signal may be further used to indicate a location of the service data in the channel data.

It should be noted that, before controlling whether the first processing unit is turned on according to the channel data, the first node needs to determine whether the channel data includes data that needs to be processed by the first processing unit, and determine the data when the channel data includes data that needs to be processed by the first processing unit. For example, when the channel data includes an indication signal, the first node may determine whether the channel data includes traffic data according to the indication signal, and determine data to be processed in the channel data according to the indication signal. At this time, the preprocessing further includes: determining whether the channel data comprises service data according to the indication signal; when the channel data comprises service data, before the first processing unit is controlled to be started in the first time period, the service data in the channel data is determined according to the indication signal. For another example, the first node may perform feature recognition on various data in the channel data to find service data in the channel data.

Correspondingly, before controlling whether the second processing unit is started according to the received channel data, the second node needs to determine whether the received channel data contains service data, and determine the service data in the received channel data when the received channel data contains the service data. For example, when the received channel data includes an indication signal, the second node may determine whether the received channel data includes service data according to the indication signal, and further determine the service data in the received channel data. In this case, the post-processing further includes: determining whether the received channel data comprises service data according to the indication signal; when the received channel data comprises service data, the service data in the received channel data is determined according to the indication signal before the second processing unit is controlled to be started in the second time period. For another example, the second node may perform feature recognition on various data in the received channel data to find service data in the channel data.

Further, when the channel data acquired by the first node includes an indication signal, the data that needs to be processed by the first processing unit in S104 may further include the indication signal. At this time, the first node may process the indication signal by using the first processing unit in the process of preprocessing the acquired channel data, so as to improve the reliability of transmission of the indication signal. Of course, when the channel data includes an indication signal, the data that needs to be processed by the first processing unit may also not include the indication signal, which is not limited in the embodiment of the present application.

Correspondingly, when the data to be processed by the first processing unit further includes an indication signal, the post-processing of the received channel data by the second node further includes: the second processing unit performs processing (such as digital signal processing) for execution on the received instruction signal in the channel data. Then, the first node can determine whether the received channel data contains service data according to the processed indication signal, so as to identify the service data in the received channel data.

With continued reference to fig. 9, the second node 2 further includes an extracting unit 214, and the second control unit 215 is connected to the signal receiving unit 211 through the extracting unit 214. The second node 2 may perform processing for execution by the second processing unit on the indication signal using the extraction unit 214. Then, the second node 2 determines whether the received channel data includes service data according to the processed indication signal by using the second control unit 215, further determines service data in the received channel data, and controls the second processing unit to be turned on and off.

In the above, the indication signal is used to indicate whether the channel data includes service data, optionally, when the channel data includes service data, the indication signal is further used to indicate a position of the service data in the channel data. It is understood that the first node may acquire n channels of channel data in S103, where n is greater than or equal to 1. At this time, the n-channel data includes n indication signals, and the n-channel data corresponds to the n indication signals one by one. For one channel data corresponding to one indication signal in the n indication signals, the channel data comprises the indication signal, and the indication signal is used for indicating: the indication signal may also be used to indicate the location of the traffic data in the channel data when the channel data comprises traffic data.

Of course, when the first node obtains n-channel data in S103, it is also possible that not all of the n-channel data include an indication signal, but a part of the n-channel data includes an indication signal, where the indication signal in the part of the n-channel data is used to indicate whether at least one (e.g., n) channel data in the n-channel data includes service data, and optionally, when the at least one channel data includes service data, the indication signal in the part of the n-channel data is also used to indicate a position of the service data in the channel data. For example, one channel data in the n channels of channel data includes an indication signal, and none of the other channel data except the one channel data includes an indication signal, where the indication signal is used to indicate whether at least one channel data in the n channels of channel data includes service data, and optionally, when at least one channel data includes service data, the indication signal is also used to indicate a position of the service data in the channel data.

In general, when the first node acquires n-channel data in S103, the m-channel data in the n-channel data includes an indication signal, where the indication signal in the m-channel data is used to indicate whether at least one channel data in the n-channel data includes service data, and optionally, when the at least one channel data includes service data, the indication signal in the m-channel data is also used to indicate a position of the service data in the channel data, where 1.ltoreq.m.ltoreq.n. When m=1, the one-path channel data includes an indication signal, and the one indication signal is used for indicating: whether at least one channel data in the n channels of channel data comprises service data. When m=n, the n-channel data includes n indication signals, the n-channel data corresponds to the n indication signals one by one, and for one channel data corresponding to one indication signal in the n indication signals, the channel data includes the indication signal, and the indication signal is used for indicating: whether the channel data includes traffic data.

(2) When the channel data acquired by the first node does not include service data or the bandwidth of the data processed by the first processing unit is smaller than the target bandwidth, the preprocessed channel data includes: redundant data. Wherein, the data processed by the first processing unit is that: data, such as traffic data, or traffic data and indication signals, processed by the first processing unit are required.

By way of example, assume that three channel data shown in fig. 12 are shown in fig. 13 after being preprocessed. If the bandwidths of the indication signals and the service data in the case 1 and the case 2 are smaller than the target bandwidths after being processed by the first processing unit, the data obtained by preprocessing the channel data in the case 1 and the case 2 can comprise redundant data. The channel data in case 3 does not include traffic data, and thus the data obtained by preprocessing the channel data in case 3 also includes redundant data. The channel data and the data to be processed by the first processing unit include the indication signal, and of course, the channel data and the data to be processed by the first processing unit may not include the indication signal, and the pre-processed channel data may not include the indication signal processed by the first processing unit.

The target bandwidth is a maximum operating bandwidth of a transmitter in the first node for transmitting the preprocessed channel data having the target bandwidth. It can be seen that, when the channel data acquired by the first node does not include service data, or the bandwidth of the data processed by the first processing unit is smaller than the target bandwidth, the first node may make the preprocessed channel data have the target bandwidth by adding redundant data.

For any one of at least one of the average power, the peak-to-average ratio, and the spectrum bandwidth (the bandwidth of the spectrum, which is used to indicate the width of the spectrum), the absolute value of the difference between the parameters of different data in the preprocessed channel data is smaller than the absolute value corresponding to the parameter. In other words, when the preprocessed channel data does not include redundant data, the parameters of different data in the preprocessed channel data are more similar (the absolute value of the difference between the parameters is smaller than the absolute value corresponding to the parameters); when the preprocessed channel data includes redundant data, the parameters of different data in the preprocessed channel data are also more similar (the absolute value of the difference between the parameters is smaller than the absolute value corresponding to the parameters). It can be seen that the redundant data is relatively similar to the parameters of other data (different from the redundant data) in the pre-processed channel data.

In this way, although the bandwidth of the service data is changed, the bandwidth of the preprocessed channel data is kept at the target bandwidth, and parameters of different data in the preprocessed channel data are similar. Therefore, the bandwidth change of the service data does not cause the bandwidth and parameter change of the preprocessed channel data, and the preprocessed channel data has higher stability. When the first node and the second node are provided with the multiplexing channel, the mutual influence of signals in the multiplexing channel is smaller, and the probability of service interruption and network failure is reduced.

Further, when the preprocessed channel data includes redundant data, the redundant data may be obtained in various ways, and several ways of obtaining the redundant data will be explained below.

Before explaining the several acquisition modes, a review is made of the explanation related to fig. 10, please refer to fig. 10, in which the channel data acquired by the first node includes at least one of service data and padding data. It should be noted that, in fig. 10, the channel data acquired by the first node includes at least one of service data and padding data as an example, when the channel data does not include service data, or the bandwidth of the service data is smaller than the preset data bandwidth, the channel data may also not include padding data.

1. In the first method for obtaining the redundant data, when the channel data obtained by the first node includes the padding data, the first node may replace the padding data with the redundant data in the preprocessing, so that the preprocessed channel data includes the redundant data.

2. In the second method for obtaining redundant data, when the channel data obtained by the first node includes padding data, the padding data may be the redundant data, where the preprocessing does not include processing related to the redundant data, and the preprocessed channel data includes the redundant data.

3. In the third method for obtaining the redundant data, when the channel data obtained by the first node does not include the filling data (the bandwidth of the service data may be smaller than or equal to the preset data bandwidth at this time), if the bandwidth of the data processed by the first processing unit is smaller than the target bandwidth, in the preprocessing, the first node may combine the data processed by the first processing unit with the redundant data to obtain the preprocessed channel data.

Still further, when the channel data acquired by the first node includes service data, if the preprocessed channel data includes the redundant data, the redundant data may include at least part of the service data that is not processed by the first processing unit, or at least part of the service data that is processed by the first processing unit. At this time, after the second node performs post-processing on the received channel data in S106, if the channel data includes redundant data and the error rate of the service data is greater than the target error rate, the second node may perform data recovery on the service data according to the redundant data in the channel data.

Of course, when the channel data acquired by the first node includes service data, the redundant data in the channel data may not include at least part of the service data that is not processed by the first processing unit, or at least part of the service data that is processed by the first processing unit, which is not limited in this embodiment of the present application.

With continued reference to fig. 9, when the preprocessing includes processing related to the redundant data (e.g., replacing the padding data with the redundant data or combining the data processed by the first processing unit with the redundant data), the first node 1 further includes: and a redundancy unit 116. The redundancy unit 116 is connected to both the first control unit 115 and the signal transmitting unit 113. The first node 1 may perform processing related to the redundant data in the preprocessing using the redundancy unit 116.

Further, in the above embodiment, taking an example that a transmission channel is provided between the first node and the second node, when a multiplexing transmission channel is provided between the first node and the second node, the process of sending service data to the second node by the first node through each transmission channel may refer to the above embodiment. The structure of the corresponding transmitter in the first node of each transmission channel may refer to fig. 9, and the structure of the corresponding receiver in the second node of each transmission channel may refer to fig. 9, which is not described herein in detail.

When there is a multiplexing channel between the first node and the second node, in S103 described above, the channel data acquired by the first node has multiple channels (multiple channel data) including the first channel data and the second channel data (two channel data among the multiple channel data). The absolute value of the difference value between the center frequency of the first channel data and the target center frequency is larger than the absolute value of the difference value between the center frequency of the second channel data and the target center frequency; the target center frequency is the center frequency of the multichannel data (i.e., the center frequency of the total frequency band of the multichannel data). In other words, the center frequency of the second channel data is closer to the target center frequency than the center frequency of the first channel data.

The bandwidth of the traffic data in the first channel data is less than or equal to the bandwidth of the traffic data in the second channel data. Illustratively, as shown in fig. 14, it is assumed that the multi-channel data includes four-channel data, which are channel data 1, 2, 3, 4, respectively. The four channels of channel data are respectively the spectrums 1, 2, 3 and 4 in fig. 14, wherein the spectrum 1 is the spectrum of channel data 1, the spectrum 2 is the spectrum of channel data 2, the spectrum 3 is the spectrum of channel data 3, and the spectrum 4 is the spectrum of channel data 4. The target center frequency lies between spectrum 2 and spectrum 3. Then, the bandwidths of the traffic data in the channel data 1 and 4 may be smaller, and the bandwidths of the traffic data in the channel data 2 and 3 may be larger.

It should be noted that, in general, among the multipath channel data, the channel data whose center frequency is far from the target center frequency has a poor transmission effect, and the channel data whose center frequency is near to the target center frequency has a good transmission effect. Therefore, in the embodiment of the application, more service data are contained in the channel data with the center frequency close to the target center frequency, so that the transmission effect of the service data can be improved.

As can be seen from the above, the method provided in the embodiments of the present application can be applied to a scenario in which one or more transmission channels exist between the first node and the second node, so that the method can be applied to nodes of a digital single carrier architecture and a digital multi carrier architecture.

In addition, whether a path transmission channel or a multiple path transmission channel exists between the first node and the second node, the first node and the second node can periodically execute the method provided by the embodiment of the application.

The methods provided by the embodiments of the present application will be further illustrated by the following two examples.

In example 1, a path of transmission channel exists between the first node and the second node, and the first node and the second node repeatedly execute the method provided in the embodiment of the present application three times.

As shown in fig. 15, the channel data acquired by the first node includes an indication signal i and at least one of traffic data d and padding data e. As shown in fig. 15, the first processing unit is turned on at the processing time corresponding to the instruction signal i and the service data d, and turned off at the processing time corresponding to the padding data e.

As can be seen from fig. 15, when the channel data includes data (the indication signal i and the service data d) that need to be processed by the first processing unit, the first node controls the first processing unit to be turned on to process the data. And the on-time of the first processing unit is positively correlated with the bandwidth of these data. Therefore, the first processing unit is not required to be in the on state all the time, so that the power consumption waste of the first processing unit is reduced, and the power consumption waste of the first node is reduced.

As shown in fig. 16, the channel data received by the second node includes: an instruction signal I (the instruction signal I in fig. 15 processed by the first processing unit); when the channel data includes service data, the channel data further includes: service data D (service data D in fig. 15 processed by the first processing unit); when the bandwidths of the indication signal I and the service data D are smaller than the target bandwidth, the channel data further includes redundancy data E. The second processing unit is turned on at the processing time corresponding to the service data D, and turned off at the processing time corresponding to the indication signal I and the redundant data E.

As can be seen from fig. 16, when the channel data received by the second node includes the service data D, the second node controls the second processing unit to be turned on to process the service data D, and the turn-on duration of the second processing unit is positively related to the bandwidth of the service data D. Therefore, the second processing unit is not required to be in the on state all the time, so that the power consumption waste of the second processing unit is reduced, and the power consumption waste of the second node is reduced.

In addition, for any one parameter of at least one parameter of average power, peak-to-average ratio and spectrum bandwidth, the parameter of the redundant data E is similar to the parameter of the service data D, so that the bandwidth change of the service data does not cause the parameter change of the preprocessed channel data, and the stability of the channel data is higher.

Example 2 takes a method in which four transmission channels exist between a first node and a second node, and the first node and the second node repeatedly execute three times, as an example. The four transmission channels are respectively transmission channels 1, 2, 3, 4, the transmission channel 1 is used for transmitting the channel data 1 mentioned in the description of fig. 14, the transmission channel 2 is used for transmitting the channel data 2 mentioned in the description of fig. 14, the transmission channel 3 is used for transmitting the channel data 3 mentioned in the description of fig. 14, and the transmission channel 4 is used for transmitting the channel data 4 mentioned in the description of fig. 14. Each transmission channel is provided with a corresponding first processing unit and a second processing unit, wherein the first processing unit is used for processing data which needs to be processed by the first processing unit in the transmission channel, and the second processing unit is used for processing business data in channel data received from the transmission channel.

The channel data acquired by the first node may be as shown in fig. 17, and the channel data received by the second node may be as shown in fig. 18.

As can be seen from fig. 17, when the channel data acquired by the first node includes data (the instruction signal i and the service data d) that needs to be processed by the first processing unit, the first node controls the first processing unit for processing these data in the channel data to be turned on. And the on-time of the first processing unit is positively correlated with the bandwidth of the data. Therefore, the first processing unit is not required to be in the on state all the time, so that the power consumption waste of the first processing unit is reduced, and the power consumption waste of the first node is reduced. And, the bandwidth of the traffic data d in the transmission channels 2 and 3 is large, and the bandwidth of the traffic data d in the transmission channels 1 and 4 is small. Therefore, in the embodiment of the application, more service data d can be transmitted in the transmission channels 2 and 3 with the center frequency close to the target center frequency, so that the transmission effect of the service data can be improved.

As can be seen from fig. 18, when the channel data received by the second node includes the service data D, the second node controls the second processing unit for processing the service data D to be turned on. And, the on-time of the second processing unit is positively correlated with the bandwidth of the service data D. Therefore, the second processing unit is not required to be in the on state all the time, so that the power consumption waste of the second processing unit is reduced, and the power consumption waste of the second node is reduced.

And, for any one of at least one of the parameters of average power, peak-to-average ratio and spectrum bandwidth, the parameter of the redundant data E is more similar to the parameter of the service data D. Therefore, the bandwidth change of the service data D does not cause the parameter change of the channel data received by the second node, the stability of the channel data received by the second node is higher, the mutual influence of signals in the multiplexing channel is smaller, and the probability of service interruption and network failure is reduced.

Through tests, the service data in the channel data is generally below 30%, and the service data in the channel data can reach 60% -90% in the peak period. When the method provided by the embodiment of the application is adopted to transmit service data, the average power consumption of the transmitter and the receiver can be reduced by more than 50%.

Further, as can be seen from the description of the above embodiments, the method provided by the embodiments of the present application has no special requirements on the DAC, the ADC, the photoelectric device and the optical amplifier, so the cost of the node is not high, and the application scenario of the method provided by the embodiments of the present application is not limited.

It should be noted that, the examples of fig. 17 and 18 take an example in which each channel data includes the indication signal i as an example, alternatively, a part of the channel data (e.g., the channel data transmitted in the transmission channel 2) may include the indication signal i, and another part of the channel data (e.g., the channel data transmitted in the transmission channels 1, 3, and 4) may not include the indication signal i. At this time, the channel data acquired by the first node may be as shown in fig. 19, and the channel data received by the second node may be as shown in fig. 20. As can be seen from fig. 19, the first processing unit corresponding to the transmission channel 1 and the first processing unit corresponding to the transmission channel 4 in fig. 19 are turned on for a shorter time than in fig. 17, and the power consumption waste of the two first processing units is less.

Further, referring to fig. 6 and fig. 9, the communication system shown in fig. 9 is further provided with the shaping unit 114, the first control unit 115 and the redundancy unit 116 in the first node 1, and the extracting unit 214, the second control unit 215 and the shaping unit 216 in the second node 2, compared with the communication system shown in fig. 6.

The units in the first node 1 may be independent from each other or may be integrated with at least some units, which is not limited in this embodiment of the present application. For example, the shaping unit 114, the first control unit 115, the redundancy unit 116, the encoding unit 111 and the DSP 112 in the first node 1 may be integrated as a DSP chip.

The units of the second node 2 may be independent from each other or may be integrated with at least some units, which is not limited in this embodiment of the present application. For example, the extraction unit 214 and the second control unit 215 may be integrated together, or the extraction unit 214, the second control unit 215, the deplastic unit 216, the decoding unit 213, and the DSP 212 in the second node 2 may be integrated into a DSP chip.

In fig. 9, it is exemplified that the shaping unit 114, the first control unit 115 and the redundancy unit 116 are located in the transmitter 11, and the extracting unit 214, the second control unit 215 and the de-shaping unit 216 are located in the receiver 21. Alternatively, the shaping unit 114, the first control unit 115 and the redundancy unit 116 may be located outside the transmitter 11, and the extracting unit 214, the second control unit 215 and the depulping unit 216 may be located outside the receiver 21, which is not limited in the embodiment of the present application.

In addition, in the embodiment of the present application, the first processing unit in the first node includes: an encoding unit (e.g., FEC encoding unit) and a DSP, and the preprocessing performed by the first node includes: the encoding performed by the encoding unit, and the digital signal processing performed by the DSP are exemplified. Optionally, the pre-treatment may further comprise at least one of the following treatments: channel coding performed by the coding unit, interleaving performed by the coding unit, constellation mapping performed by the DSP, shaping filtering performed by the DSP, originating device compensation performed by the DSP, up-sampling performed by the DSP, pre-emphasis performed by the DSP, etc.

In this embodiment, the second processing unit in the second node includes: a decoding unit (e.g., FEC decoding unit) and a DSP, and the post-processing performed by the second node includes: the decoding performed by the decoding unit, and the digital signal processing performed by the DSP are exemplified. Optionally, the post-processing may further include at least one of: automatic gain control (automatic gain control, AGC) performed by the DSP, downsampling performed by the DSP, receiver device compensation performed by the DSP, spectrum estimation and compensation performed by the DSP, matched filtering performed by the DSP, timing synchronization performed by the DSP, frame synchronization performed by the DSP, dynamic equalization performed by the DSP, carrier recovery performed by the DSP, phase noise suppression performed by the DSP, deinterleaving performed by the decoding unit, channel decoding performed by the decoding unit, and the like.

The service data transmission method provided in the present application is described in detail above with reference to fig. 1 to 21, and it is understood that, in order to implement the functions described in the above methods, the service data transmission device needs to include corresponding hardware and/or software modules for executing the respective functions. The execution of the methods described in connection with the embodiments disclosed herein may be embodied in hardware or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality in varying ways for each particular application in conjunction with the embodiments, but such implementation is not to be considered as beyond the scope of the present application.

In this embodiment, the functional modules of the corresponding service data transmission device may be divided according to the above-described method embodiment, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules described above may be implemented in hardware.

When the function module division manner is adopted, the service data transmission device provided in the present application will be described below with reference to fig. 21 and 22.

Fig. 21 is a block diagram of a service data transmission device provided in the embodiment of the present application, where the service data transmission device may be, for example, the first node in the foregoing embodiments. As shown in fig. 21, the service data transmission apparatus includes: an acquisition module 2101, a preprocessing module 2101 and a transmission module 2103.

The acquisition module 2101 is used for acquiring channel data; the operation of the acquisition module 2101 for performing may refer to the content related to the first node in S103 in the foregoing embodiment. The acquisition module 2101 may be implemented by the shaping unit 114 in the first node 1 illustrated in fig. 9, for example.

The preprocessing module 2102 is configured to preprocess the channel data; the pretreatment comprises the following steps: controlling a first processing unit to be started in a first time period, and performing digital signal processing on service data in the channel data by using the first processing unit; the duration of the first time period is positively correlated with the bandwidth of the service data; the operation of the preprocessing module 2102 for execution may refer to the content related to the first node in S104 in the foregoing embodiment. The preprocessing module 2102 may be implemented by the first control unit 115 in the first node 1 shown in fig. 9, for example.

The transmitting module 2103 is configured to transmit the channel data subjected to the preprocessing. The operation of the transmission module 2103 for performing may refer to the content related to the first node in S105 in the foregoing embodiment. The transmission module 2103 may be implemented by the signal transmission unit 113 in the first node 1 shown in fig. 9, for example.

Optionally, when controlling the first processing unit to be turned on in the first period, the preprocessing module 2102 may generate a first timing signal according to a data type included in the channel data, and input the first timing signal to the first processing unit, so that the first processing unit is turned on in the first period. The first timing signal is used for indicating the first processing unit to be turned on in the first time period and turned off in the time beyond the first time period, and the data type corresponding to the first time period comprises the data type of the service data. It can be seen that the first node may control the first processing unit to be turned on and off by the first timing signal, so that the power consumption of the first processing unit may vary with the bandwidth of the service data.

Optionally, for one of the channel data, when the channel data includes the service data, the indication signal in the m channel data is further used to indicate a position of the service data in the channel data. When the channel data includes an indication signal, the preprocessing module 2102 may determine whether the channel data includes traffic data according to the indication signal, and determine data to be processed in the channel data according to the indication signal. At this time, the preprocessing module is further configured to: determining whether the channel data comprises service data according to the indication signal; when the channel data comprises service data, before the first processing unit is controlled to be started in the first time period, the service data in the channel data is determined according to the indication signal.

(2) Illustratively, when the channel data does not include the service data or the bandwidth of the data processed by the first processing unit is smaller than a target bandwidth, the channel data subjected to the preprocessing includes: redundant data. At this time, the preprocessing module may be implemented by the first control unit 115 and the redundancy unit 116 in the first node 1 shown in fig. 9.

Optionally, the service data transmission device further includes: the mapping module and the identification module (neither shown in fig. 21).

The mapping module is used for processing the initial data to be mapped before the channel data are acquired to obtain service indication and the mapped initial data; the service indication is used for indicating whether the initial data after mapping comprises the service data or not, and when the initial data after mapping comprises the service data, the service indication is also used for indicating the position of the service data in the initial data after mapping; the mapping module may be configured to perform the operation with reference to the content related to the first node in S101 in the foregoing embodiment. The mapping module may comprise, for example, the mapping unit 122 in the first node 1 shown in fig. 9.

The identification module is used for carrying out identification on the service data on the initial data after mapping according to the service indication; the acquisition module is used for: and acquiring the channel data according to the identification result of the service data. The operation performed by the identification module may refer to the content related to the first node in S102 in the foregoing embodiment. The identification module may be implemented by the shaping unit 114 in the first node 1 shown in fig. 9, for example.

Optionally, the first node may also not include a mapping module, where the first node may include a receiving module, configured to receive the service indication sent by the other node and the mapped initial data, which is not limited in this application.

Fig. 22 is a block diagram of another service data transmission device provided in the embodiment of the present application, where the service data transmission device may be, for example, the second node in the foregoing embodiments. As shown in fig. 22, the service data transmission apparatus includes: a receiving module 2201 and a post-processing module 2202.

A receiving module 2201, configured to receive channel data; the operation performed by the receiving module 2201 may refer to the content related to the second node in S105 in the foregoing embodiment. Illustratively, the receiving module 2201 may include the signal receiving unit 211 in the second node 2 shown in fig. 9.

A post-processing module 2202, configured to post-process the channel data; the post-processing includes: controlling a second processing unit to be started in a second time period, and performing digital signal processing on service data in the received channel data by using the second processing unit; the duration of the second time period is positively correlated with the bandwidth of the traffic data. The operation of the post-processing module 2202 for execution may refer to the content related to the second node in S106 in the foregoing embodiment. Illustratively, the post-processing module 2202 may include the second control unit 215 in the second node 2 shown in fig. 9.

Optionally, the post-processing module 2202 is configured to: generating a second time sequence signal according to the data type included in the channel data; and inputting the second time sequence signal to the second processing unit so as to enable the second processing unit to be started in the second time period. The second timing signal is used for indicating the second processing unit to be turned on in the second time period and turned off in the time beyond the second time period, and the data type corresponding to the second time period comprises the service data.

Optionally, for one of the channel data, when the channel data includes the service data, the indication signal in the m channel data is further used to indicate: the position of the service data in the channel data. When the channel data includes an indication signal, the post-processing module 2202 may determine whether the channel data includes traffic data based on the indication signal and determine traffic data in the channel data based on the indication signal. At this time, the post-processing module 2202 is also configured to: determining whether the channel data comprises service data according to the indication signal; when the channel data comprises service data, the service data in the channel data is determined according to the indication signal before the second processing unit is controlled to be started in the second time period.

Optionally, the service data transmission device further includes: the acquisition module and the demapping module (neither shown in fig. 22).

The acquisition module is used for acquiring a service instruction and initial data to be demapped after post-processing the channel data; when the channel data includes the service data, the initial data includes: the service data; the service indication is used for indicating whether the initial data comprises the service data; when the initial data comprises the service data, the service instruction is further used for indicating the position of the service data in the initial data; the operation performed by the acquisition module may refer to the content related to the second node in S107 in the foregoing embodiment. Illustratively, the acquisition module may comprise a deplastic unit 216 in the second node 2 shown in fig. 9.

And the demapping module is used for processing the initial data according to the service instruction to obtain the demapped initial data. The demapping module may be configured to perform the operations described in S108 with reference to the second node. The demapping module may for example comprise a demapping unit 221 in the second node 2 shown in fig. 9.

Of course, the service data transmission device may not include a demapping module, but include a sending module, configured to send the service indication and the initial data to be demapped to other nodes, so that the other nodes process the initial data according to the service indication, and obtain the initial data after demapping.

The embodiment of the application also provides a chip, which comprises the programmable logic circuit and/or the program instructions and is used for realizing any service data transmission method executed by the first node or the second node when the chip is operated. Alternatively, the chip may be a DSP chip.

In this application, the terms "first" and "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "at least one" means one or more, "a plurality" means two or more, unless expressly defined otherwise. The term "and/or" is merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

Different types of embodiments, such as a method embodiment and a device embodiment, provided in the embodiments of the present application may be mutually referred to, and the embodiments of the present application are not limited to this.

In the corresponding embodiments provided in the present application, it should be understood that the disclosed system and apparatus may be implemented in other structural manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules is merely a logical function division, and there may be additional divisions of actual implementation, e.g., multiple modules may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical or other forms.

Elements illustrated as separate elements may or may not be physically separate, and elements described as elements may or may not be physically located, or may be distributed over several apparatuses. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of traffic data transmission, the method performed by a first node, the method comprising:

obtaining channel data;

preprocessing the channel data; the pretreatment comprises the following steps: controlling a first processing unit to be started in a first time period, and performing digital signal processing on service data in the channel data by using the first processing unit; the duration of the first time period is positively correlated with the bandwidth of the service data;

and transmitting the channel data subjected to the preprocessing.

2. The method of claim 1, wherein the first processing unit is configured to encode the traffic data at start-up.

3. The method according to claim 1 or 2, wherein controlling the first processing unit to be turned on for a first period of time comprises:

Generating a first timing signal according to the data type included in the channel data; the first timing signal is used for indicating the first processing unit to be turned on in the first time period and turned off in the time beyond the first time period, and the data type corresponding to the first time period comprises the data type of the service data;

and inputting the first timing signal to the first processing unit so that the first processing unit is started in the first time period.

4. A method according to any one of claims 1 to 3, wherein the channel data has n channels, n being greater than or equal to 1, m channels of the n channels of data further comprising: an indication signal, m is more than or equal to 1 and less than or equal to n;

the indication signal in the m channel data is used for indicating whether at least one channel data in the n channel data comprises the service data.

5. The method of claim 4, wherein m = 1, one of the channel data includes an indication signal, and the one indication signal is used to indicate: whether the at least one path of channel data comprises the service data;

or, m=n, n paths of the channel data include n indication signals, n paths of the channel data are in one-to-one correspondence with the n indication signals, for one path of channel data corresponding to one indication signal in the n indication signals, the channel data include the indication signals, and the indication signals are used for indicating: whether the channel data includes the service data.

6. The method according to claim 4 or 5, wherein for one of the channel data, the indication signal in the m-way channel data is further used to indicate the position of the traffic data in the channel data when the channel data comprises the traffic data.

7. The method of claim 6, wherein the preprocessing further comprises:

determining whether the channel data comprises the service data according to the indication signal;

and when the channel data comprises the service data, determining the service data in the channel data according to the indication signal before the first control processing unit is started in a first time period.

8. The method according to any one of claims 1 to 7, wherein when the channel data does not include the traffic data or the bandwidth of the data processed by the first processing unit is smaller than a target bandwidth, the channel data subjected to the preprocessing includes: redundant data;

the target bandwidth is the maximum working bandwidth of a transmitter in the first node for transmitting the channel data subjected to the preprocessing, and the channel data subjected to the preprocessing has the target bandwidth;

And for any one parameter of at least one parameter of average power, peak-to-average ratio and spectrum bandwidth, the absolute value of the difference between the parameters of different data in the preprocessed channel data is smaller than the absolute value corresponding to the parameter.

9. The method of claim 8, wherein when the channel data comprises the traffic data and the pre-processed channel data comprises the redundancy data, the redundancy data comprises at least a portion of the traffic data not processed by the first processing unit or at least a portion of the traffic data processed by the first processing unit.

10. The method of any one of claims 1 to 9, wherein the channel data has multiple channels, the multiple channels of channel data including first channel data and second channel data;

the absolute value of the difference value between the center frequency of the first channel data and the target center frequency is larger than the absolute value of the difference value between the center frequency of the second channel data and the target center frequency; the target center frequency is the center frequency of the multichannel data;

and the bandwidth of the service data in the first channel data is smaller than or equal to the bandwidth of the service data in the second channel data.

11. The method according to any one of claims 1 to 10, wherein prior to the acquiring channel data, the method further comprises:

processing initial data to be mapped to obtain service indication and the mapped initial data; the service indication is used for indicating whether the initial data after mapping comprises the service data or not, and when the initial data after mapping comprises the service data, the service indication is also used for indicating the position of the service data in the initial data after mapping;

according to the service indication, the service data is identified for the initial data after mapping;

the obtaining channel data includes:

and acquiring the channel data according to the identification result of the service data.

12. The method according to any one of claims 1 to 11, wherein the first processing unit comprises: at least one of a digital signal processor DSP and a forward error correction FEC encoding unit.

13. A method of traffic data transmission, the method being performed by a second node, the method comprising:

receiving channel data;

post-processing the channel data; the post-processing includes: controlling a second processing unit to be started in a second time period, and performing digital signal processing on service data in the received channel data by using the second processing unit; the duration of the second time period is positively correlated with the bandwidth of the traffic data.

14. The method of claim 13, wherein the second processing unit is configured to decode the traffic data when turned on.

15. The method of claim 13 or 14, wherein controlling the second processing unit to be turned on for a second period of time comprises:

generating a second time sequence signal according to the data type included in the channel data; the second timing signal is used for indicating the second processing unit to be turned on in the second time period and turned off in the time beyond the second time period, and the data type corresponding to the second time period comprises the service data;

and inputting the second time sequence signal to the second processing unit so as to enable the second processing unit to be started in the second time period.

16. The method of any of claims 13 to 15, wherein the channel data has n channels, n being greater than or equal to 1, m channels of the channel data further comprising: an indication signal, m is more than or equal to 1 and less than or equal to n;

the indication signal in the m-channel data is used for indicating: and whether at least one channel data in the n channels of the channel data comprises the service data or not.

17. The method of claim 16, wherein m = 1, one of the channel data includes an indication signal, and the one indication signal is used to indicate: whether the at least one path of channel data comprises the service data;

18. The method according to claim 16 or 17, wherein for one of the channel data, when the channel data comprises the traffic data, the indication signal in the m-way channel data is further used to indicate: the position of the service data in the channel data.

19. The method of claim 18, wherein the post-processing comprises:

and when the channel data comprises the service data, determining the service data in the channel data according to the indication signal before the second processing unit is controlled to be started in the first time period.

20. The method according to any one of claims 13 to 19, wherein after said post-processing of said pre-processed channel data, the method further comprises:

And when the channel data further comprises redundant data and the error rate of the service data is larger than the target error rate, carrying out data recovery on the service data according to the redundant data.

21. The method according to any one of claims 13 to 20, wherein after post-processing the channel data, the method further comprises:

acquiring a service instruction and initial data to be demapped; when the channel data includes the service data, the initial data includes: the service data; the service indication is used for indicating whether the initial data comprises the service data; when the initial data comprises the service data, the service instruction is further used for indicating the position of the service data in the initial data;

and processing the initial data according to the service instruction to obtain the demapped initial data.

22. The method according to any one of claims 13 to 21, wherein the second processing unit comprises: at least one of a digital signal processor DSP and a forward error correction FEC decoding unit.

23. A service data transmission device, wherein the service data transmission device is a first node, the service data transmission device comprising:

The acquisition module is used for acquiring channel data;

the preprocessing module is used for preprocessing the channel data; the pretreatment comprises the following steps: controlling a first processing unit to be started in a first time period, and performing digital signal processing on service data in the channel data by using the first processing unit; the duration of the first time period is positively correlated with the bandwidth of the service data;

and the sending module is used for sending the channel data subjected to the preprocessing.

24. The traffic data transmission device of claim 23 wherein the first processing unit is configured to encode the traffic data upon activation.

25. The traffic data transmission device according to claim 23 or 24, wherein the preprocessing module is configured to:

26. The service data transmission apparatus according to any one of claims 23 to 25, wherein the channel data has n channels, n is greater than or equal to 1, and m channels of the n channels of channel data further include: an indication signal, m is more than or equal to 1 and less than or equal to n;

27. The traffic data transmission device according to claim 26, wherein m=1, one path of the channel data includes an indication signal, and the indication signal is used for indicating: whether the at least one path of channel data comprises the service data;

28. The traffic data transmission device according to claim 26 or 27, wherein for one of the channel data, the indication signal in the m-way channel data is further used to indicate the position of the traffic data in the channel data when the channel data includes the traffic data.

29. The traffic data transmission device of claim 28 wherein the preprocessing module is further configured to:

30. The apparatus according to any one of claims 23 to 29, wherein when the channel data does not include the service data or the bandwidth of the data processed by the first processing unit is smaller than a target bandwidth, the channel data subjected to the preprocessing includes: redundant data;

31. The traffic data transmission device according to claim 30, wherein when the channel data includes the traffic data and the channel data subjected to the preprocessing includes the redundant data, the redundant data includes at least part of the traffic data which has not been processed by the first processing unit or at least part of the traffic data which has been processed by the first processing unit.

32. The traffic data transmission device according to any one of claims 23 to 31, wherein the channel data has a plurality of channels, the plurality of channels including first channel data and second channel data;

33. The traffic data transmission device according to any one of claims 23 to 32, characterized in that the traffic data transmission device further comprises:

The mapping module is used for processing the initial data to be mapped before the channel data are acquired to obtain service indication and the mapped initial data; the service indication is used for indicating whether the initial data after mapping comprises the service data or not, and when the initial data after mapping comprises the service data, the service indication is also used for indicating the position of the service data in the initial data after mapping;

the identification module is used for carrying out identification on the service data on the initial data after mapping according to the service indication;

the acquisition module is used for: and acquiring the channel data according to the identification result of the service data.

34. The traffic data transmission device according to any one of claims 23 to 33, wherein the first processing unit includes: at least one of a digital signal processor DSP and a forward error correction FEC encoding unit.

35. A service data transmission device, wherein the service data transmission device is a second node, the service data transmission device comprising:

the receiving module is used for receiving the channel data;

the post-processing module is used for carrying out post-processing on the channel data; the post-processing includes: controlling a second processing unit to be started in a second time period, and performing digital signal processing on service data in the received channel data by using the second processing unit; the duration of the second time period is positively correlated with the bandwidth of the traffic data.

36. The traffic data transmission device of claim 35 wherein the second processing unit is configured to decode the traffic data when turned on.

37. The traffic data transmission device according to claim 35 or 36, wherein the post-processing module is configured to:

38. The service data transmission apparatus according to any one of claims 35 to 37, wherein the channel data has n channels, n is greater than or equal to 1, and m channels of the n channels of channel data further include: an indication signal, m is more than or equal to 1 and less than or equal to n;

39. The traffic data transmission device according to claim 38, wherein m = 1, one of the channel data includes an indication signal, and the one indication signal is used to indicate: whether the at least one path of channel data comprises the service data;

40. The traffic data transmission device according to claim 38 or 39, wherein for one of the channel data, when the channel data includes the traffic data, the indication signal in the m-way channel data is further used to indicate: the position of the service data in the channel data.

41. The traffic data transmission device of claim 40 wherein the post-processing module is further configured to:

42. The traffic data transmission device according to any one of claims 35 to 41, characterized in that the traffic data transmission device further comprises:

and the data recovery module is used for carrying out data recovery on the service data according to the redundant data when the channel data further comprises the redundant data and the error rate of the service data is larger than the target error rate after the post-processing of the channel data subjected to the pretreatment.

43. The traffic data transmission device according to any one of claims 35 to 42, wherein the traffic data transmission device further comprises:

the acquisition module is used for acquiring a service instruction and initial data to be demapped after post-processing the channel data; when the channel data includes the service data, the initial data includes: the service data; the service indication is used for indicating whether the initial data comprises the service data; when the initial data comprises the service data, the service instruction is further used for indicating the position of the service data in the initial data;

And the demapping module is used for processing the initial data according to the service instruction to obtain the demapped initial data.

44. The traffic data transmission device according to any one of claims 35 to 43, wherein the second processing unit includes: at least one of a digital signal processor DSP and a forward error correction FEC decoding unit.

45. A communication system, the communication system comprising: a first node and a second node;

the first node is a service data transmission device according to any one of claims 23 to 34; the second node is a service data transmission device according to any one of claims 35 to 44.

46. A chip comprising programmable logic circuits and/or program instructions for implementing the traffic data transmission method according to any one of claims 1 to 22 when said chip is run.