CN114650119A - Data transmission method, device, system, electronic equipment and storage medium - Google Patents
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- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
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Abstract
The embodiment of the invention relates to the field of data communication, and discloses a data transmission method, a data transmission device, a data transmission system, electronic equipment and a storage medium. In the invention, a field related to a modulation strategy in a signal to be transmitted is changed according to a service attribute of a data packet to be transmitted, wherein the field related to the modulation strategy is a preset number of a modulation and coding strategy table corresponding to the service attribute; and sending the signal containing the data packet to be transmitted to the second equipment through the bottommost layer of the protocol stack of the first equipment. And the modulation and demodulation strategy is dynamically adjusted, so that the acquisition speed is higher, the delay is smaller, and the efficiency is higher.
Description
Technical Field
The present disclosure relates to the field of data communications, and in particular, to a data transmission method, apparatus, system, electronic device, and storage medium.
Background
With the large-area spread of 5G, the industrial application field of 5G is also wider and wider, more future communication transmission will depend on the 5G wireless technology, and wired optical fiber deployment is slowly abandoned, so as to improve the flexibility of communication deployment.
The original requirement for 5G is to meet the user requirements of different user models in different scenarios, for example, some services are not sensitive to time delay and sensitive to throughput bandwidth requirements. Some services are sensitive to time delay anomalies (such as the scenario of industrial field applications), but are insensitive to frequency offsets caused by the speed of movement. At present, a mapping table of 256QAM is mostly used in a most common high throughput scenario in 5G, but reliability is sacrificed by the mapping table, and in the 3GPP specification, if industrial-level reliability is to be achieved, a Block Error Rate (BLER) is 10e-5 (0.001%). And in a scene with high moving speed and high reliability, LowSE64QAM is generally adopted, and for the same MCS Index value, the higher the spectrum effectiveness is, the higher the throughput is, but due to the reduction of the check bits, the higher the possibility of packet loss and packet error is.
However, future User Equipment (UE) is not all single-attribute, and assuming that there is a UE with mixed usage and is simultaneously used for transmitting monitoring video (requiring high throughput) and performing automatic driving (requiring high response speed), the UE cannot use a single table for service, but the conventional technical scheme can only interact through RRC to achieve the effect of changing the table, but if the table is changed each time, the signaling interaction of the network frequently causes network load and delay, and is not suitable for parameters that change rapidly.
Disclosure of Invention
The embodiment of the application mainly aims to provide a data transmission method, which dynamically adjusts a modulation and demodulation strategy to enable the acquisition speed to be faster, the delay to be smaller and the efficiency to be higher.
In order to achieve the above object, an embodiment of the present application provides a data transmission method, including:
changing a field related to a modulation strategy in a signal to be transmitted according to the service attribute of the data packet to be transmitted, wherein the field related to the modulation strategy is a preset number of a modulation and coding strategy table corresponding to the service attribute;
and sending the signal containing the data packet to be transmitted to the second equipment through the bottommost layer of the protocol stack of the first equipment.
In order to achieve the above object, an embodiment of the present application further provides a data transmission method, including:
receiving a signal containing a data packet to be transmitted through the bottom layer of a protocol stack of a second device, wherein the signal comprises a field of a preset number of a demodulation strategy of the data packet to be transmitted;
and demodulating the signal according to the number of the demodulation strategy to acquire the data in the data packet.
In order to achieve the above object, an embodiment of the present application further provides a data transmission device, including:
the system comprises a configuration module, a transmission module and a transmission module, wherein the configuration module is used for changing a field related to a modulation strategy in a signal to be transmitted according to a service attribute of a data packet to be transmitted, and the field related to the modulation strategy is a preset number of a modulation and coding strategy table corresponding to the service attribute;
and the sending module is used for sending the signal containing the data packet to be transmitted to the second equipment through the bottommost layer of the protocol stack of the first equipment.
In order to achieve the above object, an embodiment of the present application further provides a data transmission device, including:
the receiving module is used for receiving a signal containing a data packet to be transmitted through the bottommost layer of a protocol stack of a second device, wherein the signal comprises a field of a number of a preset demodulation strategy of the data packet to be transmitted;
and the demodulation module is used for demodulating the signal according to the number of the demodulation strategy to acquire the data in the data packet.
In order to achieve the above object, an embodiment of the present application further provides a data transmission system, including:
the first device is used for changing a field related to a modulation strategy in a signal to be transmitted according to a service attribute of a data packet to be transmitted, wherein the field related to the modulation strategy is a preset number of a modulation and coding strategy table corresponding to the service attribute; sending the signal containing the data packet to be transmitted to second equipment through the bottommost layer of a protocol stack of the first equipment;
the second device is configured to receive, through a bottom layer of a protocol stack at a receiving end, a signal including a data packet to be transmitted, where the signal includes a field of a number of a preset demodulation policy of the data packet to be transmitted; and demodulating the signal according to the number of the demodulation strategy to acquire the data in the data packet.
In order to achieve the above object, an embodiment of the present application further provides an electronic device, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any of the data transfer methods.
In order to achieve the above object, an embodiment of the present application further provides a computer-readable storage medium, and when being executed by a processor, the computer program implements any one of the data transmission methods.
According to the data transmission method, the field of the modulation strategy is changed in the signal, so that the transmitted data is free from signaling interaction, the modulation strategy suitable for the service attribute of the data packet can be obtained, the interaction process is reduced, the mode of changing the modulation strategy is simpler and more convenient, and the changing time is reduced; meanwhile, the data are processed and transmitted by adopting the bottommost layer of the protocol stack, which is different from the prior mode that instruction interaction is carried out through all layers of the protocol stack, so that the transmission flow and time are obviously reduced, the effect of transmitting the data is not influenced by overlong time delay when the equipment faces to transmitting the data with high reliability, and the time delay is further reduced.
In addition, the data transmission method provided by the present application, where the field about the modulation policy in the signal to be transmitted is changed according to the service attribute of the data packet to be transmitted, includes: judging whether the service attribute of the data packet to be transmitted is consistent with the default service attribute; and if not, changing the field related to the modulation strategy into the number of the modulation and coding strategy table corresponding to the service attribute to be transmitted.
In addition, the data transmission method provided by the present application, the determining whether the service attribute of the data packet to be transmitted is consistent with the default service attribute, includes: if the modulation strategy is consistent with the default service attribute, changing the field related to the modulation strategy into a number corresponding to the default service attribute; or, changing the field related to the modulation strategy into a special value representing default service attribute; or, the field related to the modulation strategy is not carried. Different modes can be selected according to different requirements, so that the changed fields are more humanized.
In addition, in the data transmission method provided by the present application, the receiving, by a bottommost layer of a protocol stack of a second device, a signal including a data packet to be transmitted, where the signal includes a number of a preset demodulation policy of the data packet to be transmitted, includes: and determining the demodulation strategy of the signal according to the mapping relation between the number of the preselected and set demodulation strategy and the modulation and coding strategy table.
Drawings
Fig. 1 is a flowchart of a data transmission method according to a first embodiment of the present invention;
fig. 2 is a QAM table1 provided by the first embodiment of the present invention;
fig. 3 is a QAM table2 provided by the first embodiment of the present invention;
fig. 4 is QAM table3 provided in the first embodiment of the present invention;
FIG. 5 is a business model 1 of the present invention;
FIG. 6 is a schematic diagram of an instruction interaction provided by the first embodiment of the present invention;
FIG. 7 is a schematic diagram of data processing provided by the first embodiment of the present invention;
fig. 8 is a flowchart of a data transmission method according to a second embodiment of the present invention;
FIG. 9 is a business model 2 provided by a third embodiment of the present invention;
fig. 10 is a schematic structural diagram of a data transmission device according to a fourth embodiment of the present invention;
fig. 11 is a schematic structural diagram of a data transmission device according to a fifth embodiment of the present invention;
fig. 12 is a schematic structural diagram of a data transmission system according to a sixth embodiment of the present invention;
fig. 13 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.
A first embodiment of the present invention relates to a data transmission method, which is applied to a first device, in this embodiment, the first device and a second device are a network and a User Equipment (UE), respectively.
The specific process is shown in figure 1:
the step 101 is to change a field related to a modulation strategy in the signal to be transmitted according to the service attribute of the data packet to be transmitted, where the field related to the modulation strategy is a number of a preset modulation and coding strategy table corresponding to the service attribute.
Data has different service attributes, such as a scene URLLC applied in the industrial field, which is sensitive to time delay anomaly, so that Quadrature Amplitude Modulation (QAM) with high speed and low time delay is required; for example, QAM which requires high throughput when transmitting video files, a mapping table of 256QAM is mostly used in the most common high throughput scenario in 5G at present, but reliability (accuracy) is sacrificed in such a mapping table.
As shown in fig. 2, 3 and 4, table1 corresponds to 64QAM, table2 corresponds to 256QAM, and table3 corresponds to LowSE64 QAM.
Taking the above three tables as an example, where the throughput ranking is table2> table1> table3, reliability table2< table1< table3. that is, for the same MCS Index value, the higher the spectrum efficiency, the higher the throughput, but the higher the probability of packet loss and packet error due to the reduction of check bits.
Modulation and Coding Scheme (MCS) corresponding to service attributes of application scenarios is an undoubted technical means, but when a plurality of different MCSs are required to be used in one application scenario, how to quickly change the MCS needs to be considered, and the service requirements are not affected.
The conventional technical solution is to perform interaction between two ends of transmission through Radio Resource Control (RRC) signaling, for example, in the service model of fig. 5, a represents data requiring high throughput, and B represents data requiring high reliability, in the service model, MCS needs to be changed six times, if six interactions are required according to the conventional RRC signaling, but there is a problem in that a whole process from the RRC of the network to the RRC of the terminal needs to be performed through the RRC signaling, a delay of the signaling transmission itself is already long, and when the signaling transmission is completed, a time of the data B is delayed, which may cause a large transmission delay.
In the present embodiment, the service attribute requirements are mapped to the MCS table, and the number corresponding to the MCS table is set in advance. According to the service attribute requirement of the data packet to be transmitted, adding the number corresponding to the service attribute requirement into the field of the signal, if the data packet is transmitted in Downlink, namely adding the field related to the modulation strategy into the field of Downlink Control Information (DCI), changing the field into the number corresponding to the service attribute of the data packet to be transmitted.
Specifically, first, it is determined whether a service attribute of a data packet to be transmitted is consistent with a default service attribute:
if the two are consistent, the following three processing modes exist:
1. changing the field related to the modulation strategy into a number corresponding to the default service attribute;
for example, setting the default service attribute as the service attribute corresponding to table2, and the number corresponding to table2 as 2 changes the field related to the modulation policy to 2.
2. Changing a field regarding a modulation policy to a special value representing a default service attribute;
for example, if the number corresponding to table1 is set to 1, the number corresponding to table2 is set to 2, and the number corresponding to table3 is set to 3, the special value is set to 0, which represents the default service attribute.
3. No field about the modulation strategy is carried.
And if the fields are not consistent, changing the fields related to the modulation strategies into the numbers of the modulation and coding strategy tables corresponding to the service attributes to be transmitted.
Step 102 of sending said signal comprising the data packet to be transmitted to the second device via the lowest layer of the protocol stack of the first device.
According to the conventional scheme described in step 101, the MCS table is changed through RRC signaling interaction, taking the service model of fig. 5 as an example, changing the MCS for six times generates a large number of interactions, and these interactions need to be processed at the RRC layer of the protocol stack, as shown in fig. 6, that is, a round trip needs to be performed from the RRC of the first device to the RRC of the second device all the way, so that the time delay of signaling transmission is longer, and especially the transmission of high-reliability data is affected.
In this embodiment, the processing is performed at the bottom layer of the protocol stack, i.e. the PHY layer, as shown in fig. 7, and other protocol layers are not needed, so that the transmission time is significantly reduced and the transmission speed is faster.
Compared with the related art, the embodiment of the invention avoids the interaction of signaling for the transmitted data by changing the field of the modulation strategy in the signal, can acquire the modulation strategy suitable for the service attribute of the data packet, reduces the interaction process, makes the mode of changing the modulation strategy simpler and more convenient, and reduces the changing time; meanwhile, the data are processed and transmitted by adopting the bottommost layer of the protocol stack, which is different from the prior mode that instruction interaction is carried out through all layers of the protocol stack, so that the transmission flow and time are obviously reduced, the effect of transmitting the data is not influenced by overlong time delay when the equipment faces to transmitting the data with high reliability, and the time delay is further reduced.
A second embodiment of the present invention relates to a data transmission method, which is applied to a second device, and the specific flow is as shown in fig. 8:
In this embodiment, the second device, as a data receiving side, receives a signal from the bottom layer of the protocol stack, and acquires the MCS table according to a field about a demodulation policy in the signal to demodulate the received signal and acquire a data packet in the signal.
Compared with the related art, the implementation mode processes the signal through the bottommost layer of the protocol stack, avoids determining the MCS table corresponding to the service attribute of the transmission data packet through an instruction interaction mode of the whole protocol stack, and reduces transmission delay; meanwhile, the corresponding number is obtained from the field of the signaling to determine the MCS table corresponding to the signal, which is different from the mode of needing to carry out signaling interaction for many times in the related art, so that the time delay is further reduced, and the transmission process is reduced.
It should be noted that this embodiment corresponds to the first embodiment, and this embodiment is applied to the second device and corresponds to a data receiving side, and the first embodiment is applied to the first device and corresponds to a data sending side.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
A third embodiment of the present invention relates to a data transmission method, where a is a service model as shown in fig. 5, where a represents data with a high throughput requirement, and corresponds to mcs-table 2, B represents data with a high reliability requirement, and corresponds to mcs-table 3, a field related to modulation and demodulation of DCI in downlink transmission data is assumed to be mcs-table index, and a default service requirement is mcs-table 2.
Step1, when the first device sends the 0 rd to 3 rd packet data, the data packet is determined to be the data which needs high throughput, and the current default service attribute is mcs-table which is 2, and is the same as the 0-3 packet data, therefore, the first device can use the following alternatives to declare that the mcs-table is not changed at the time of the information receiver:
scheme 1: DCI does not carry mcs-table index, represents that mcs-table is unchanged, and adopts default value.
Scheme 2: DCI carries the mcs-table index, but takes the value of 0 (as a special value), which means that the mcs-table is unchanged, and adopts a default value.
Scheme 3: the DCI carries the mcs-table index, but the value is 2, and the terminal is explicitly informed of adopting 2 as the mcs-table.
Step2, when the 4 th packet is sent, the data is judged to be data which needs high reliability, and the default configuration of the current network is that mcs-table is 2, which is not satisfied with the requirement, so that the DC of the first device carries mcs-table index, but the value is 3, and the terminal is explicitly informed to adopt mcs-table being 3.
Step3, when sending the 5 th packet, judging that the data needs high throughput, and the default service attribute is mcs-table being 2, which is the same as the requirement of the 5 th packet, so that the first device can use the following alternatives to declare that the mcs-table is unchanged at the time of the information receiver:
scheme 1: DCI does not carry mcs-table index, represents that mcs-table is unchanged, and adopts default value.
Scheme 2: the DCI carries the mcs-table index, but the value is 0 (as a special value), which means that the mcs-table is unchanged, and a default value is adopted.
Scheme 3: the DCI carries the mcs-table index, but the value is 2, and the terminal is explicitly informed of adopting 2 as the mcs-table.
And completing the data transmission in the same way.
When receiving the DCI1_1, the second device needs to check the value of the mcs-table index and then select the correct mcs-table for demodulation.
A fourth embodiment of the present invention relates to a data transmission method, where a is a service model as shown in fig. 5, where a represents data with a high throughput requirement, and corresponds to mcs-table 2, B represents data with a high reliability requirement, and corresponds to mcs-table 3, a field related to modulation and demodulation of DCI in downlink transmission data is assumed to be mcs-table index, and a default service requirement is mcs-table 1. Wherein the difference from the third embodiment is that the default service requirements are different.
Step1, when the first device sends the 0 th to 3 rd packet data, the data is judged to be the data needing high throughput, the default service attribute is that mcs-table is 1, the requirement is not met, at this time, the DCI carries mcs-table index, but the value is 2, and the terminal is explicitly informed to adopt mcs-table is 2.
Step2, when the 4 th packet is sent, the packet is judged to be data which needs high reliability, and the default service attribute mcs-table is 1, which is not satisfied, so that the DCI of the first device carries the mcs-table index, but the value is 3, and the terminal is explicitly informed to adopt mcs-table being 3.
Step3, when the 5 th packet is sent, the packet is judged to be data requiring high throughput, and the default service attribute is that mcs-table is 1, which is not satisfied, at this time, the DCI carries mcs-table index, but the value is 2, and the terminal is explicitly informed to adopt mcs-table is 2.
And finishing data transmission in the same cycle. When receiving DCI, the second device needs to check the value of the mcs-table index, and then selects the correct mcs-table for demodulation.
A fourth embodiment of the present invention relates to a data transmission method, where a represents data with a high throughput requirement, and corresponds to an mcs-table of 2, B represents data with a high reliability requirement, and corresponds to an mcs-table of 3, C represents data with medium reliability and medium throughput requirement, and corresponds to an mcs-table of 1, and a field related to modulation and demodulation in DCI in downlink transmission data is assumed to be an mcs-table index, and a default service requirement is an mcs-table of 2, as shown in fig. 9.
Step1, when the first device sends the 0 th to 3 rd packet data, the data is judged to be the data needing high throughput, and the default service attribute is that the mcs-table is 2, which just meets the requirement, so the first device can adopt the following alternatives to declare that the mcs-table is not changed at the time of the information receiver:
scheme 1: DCI does not carry mcs-table index, represents that mcs-table is unchanged, and adopts default value.
Scheme 2: DCI carries the mcs-table index, but takes the value of 0 (as a special value), which means that the mcs-table is unchanged, and adopts a default value.
Scheme 3: the DCI carries the mcs-table index, but the value is 2, and the terminal is explicitly informed of adopting 2 as the mcs-table.
Step2, when the 4 th packet is sent, the packet is judged to be data which needs high reliability, and the default service attribute mcs-table is 2, which is not satisfied, so that the first device DCI carries mcs-table index, but takes the value of 3, and the terminal is explicitly informed to adopt mcs-table as 3.
Step3, when the 5 th packet is sent, the packet is judged to be data with throughput in reliability, and the default service attribute mcs-table is 2, which is not satisfied with the requirement, so that the first device DC carries mcs-table index, but takes the value of 1, and the terminal is explicitly informed to adopt mcs-table as 1.
Step4, when the 6 th packet is sent, the data is judged to need high throughput, and the default service attribute is mcs-table which is 2, which just meets the requirement, so the first device can declare the information receiver by adopting the following alternatives:
scheme 1: DCI does not carry mcs-table index, represents that mcs-table is unchanged, and adopts default value.
Scheme 2: DCI carries the mcs-table index, but takes the value of 0 (as a special value), which means that the mcs-table is unchanged, and adopts a default value.
Scheme 3: the DCI carries the mcs-table index, but the value is 2, and the terminal is explicitly informed of adopting 2 as the mcs-table.
And completing the data transmission in the same way. When receiving DCI, the second device needs to check the value of the mcs-table index and then select the correct mcs-table for demodulation.
A fifth embodiment of the present invention relates to a data transmission device, as shown in fig. 10, including:
a configuration module 1001, configured to change, according to a service attribute of a packet to be transmitted, a field related to a modulation policy in a signal to be transmitted, where the field related to the modulation policy is a number of a preset modulation and coding policy table corresponding to the service attribute;
the sending module 1002 is configured to send the signal including the data packet to be transmitted to the second device through the bottom layer of the protocol stack of the first device.
It should be understood that this embodiment is an example of the apparatus corresponding to the first embodiment, and may be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
It should be noted that, in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may also be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.
A sixth embodiment of the present invention relates to a data transmission device, as shown in fig. 11, including:
a receiving module 1101, configured to receive, through a bottom layer of a second device protocol stack, a signal including a data packet to be transmitted, where the signal includes a field of a preset number of a demodulation policy of the data packet to be transmitted;
a demodulation module 1102, configured to demodulate the signal according to the number of the demodulation policy, and obtain data in the data packet.
Since the second embodiment corresponds to the present embodiment, the present embodiment can be implemented in cooperation with the second embodiment. The related technical details mentioned in the second embodiment are still valid in this embodiment, and the technical effects that can be achieved in the second embodiment can also be achieved in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related technical details mentioned in the present embodiment can also be applied in the second embodiment.
A seventh embodiment of the present invention relates to a data transmission device, as shown in fig. 12, including:
a first device 1201, configured to change a field related to a modulation policy in a signal to be sent according to a service attribute of a packet to be transmitted, where the field related to the modulation policy is a number of a preset modulation and coding policy table corresponding to the service attribute; sending the signal containing the data packet to be transmitted to second equipment through the bottommost layer of a protocol stack of the first equipment;
the second device 1202 is configured to receive, through a bottom layer of a protocol stack at a receiving end, a signal including a data packet to be transmitted, where the signal includes a field of a number of a preset demodulation policy of the data packet to be transmitted; and demodulating the signal according to the number of the demodulation strategy to acquire the data in the data packet.
An eighth embodiment of the present invention relates to an electronic apparatus, as shown in fig. 13, including:
at least one processor 1301; and, a memory 1302 communicatively coupled to the at least one processor 1301; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any one of the data transmission methods of the first to fourth embodiments.
The memory and the processor are connected by a bus, which may include any number of interconnected buses and bridges, linking together one or more of the various circuits of the processor and the memory. The bus may also link various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor.
The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.
Those skilled in the art can understand that all or part of the steps in the method of the foregoing embodiments may be implemented by a program to instruct related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, etc.) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of practicing the invention, and that various changes in form and detail may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A data transmission method is applied to a first device and comprises the following steps:
changing a field related to a modulation strategy in a signal to be transmitted according to the service attribute of the data packet to be transmitted, wherein the field related to the modulation strategy is a preset number of a modulation and coding strategy table corresponding to the service attribute;
and sending the signal containing the data packet to be transmitted to the second equipment through the bottommost layer of the protocol stack of the first equipment.
2. The data transmission method according to claim 1, wherein the modifying the field about the modulation strategy in the signal to be transmitted according to the service attribute of the data packet to be transmitted comprises:
judging whether the service attribute of the data packet to be transmitted is consistent with the default service attribute;
and if not, changing the field related to the modulation strategy into the number of the modulation and coding strategy table corresponding to the service attribute to be transmitted.
3. The data transmission method according to claim 2, wherein the determining whether the service attribute of the data packet to be transmitted is consistent with a default service attribute comprises:
if the modulation strategy is consistent with the default service attribute, changing the field related to the modulation strategy into a number corresponding to the default service attribute;
or, changing the field related to the modulation strategy into a special value representing default service attribute;
or, the field related to the modulation strategy is not carried.
4. A data transmission method applied to a second device includes:
receiving a signal containing a data packet to be transmitted through the bottom layer of a protocol stack of a second device, wherein the signal comprises a field of a preset number of a demodulation strategy of the data packet to be transmitted;
and demodulating the signal according to the number of the demodulation strategy to acquire the data in the data packet.
5. The data transmission method according to claim 4, wherein the receiving, by a bottom layer of a protocol stack of a second device, a signal including a data packet to be transmitted, where the signal includes a preset number of a demodulation policy for the data packet to be transmitted, includes:
and determining the demodulation strategy of the signal according to the mapping relation between the number of the preselected and set demodulation strategy and the modulation and coding strategy table.
6. A data transmission apparatus, comprising:
the system comprises a configuration module, a transmission module and a processing module, wherein the configuration module is used for changing a field related to a modulation strategy in a signal to be transmitted according to a service attribute of a data packet to be transmitted, and the field related to the modulation strategy is a preset number of a modulation and coding strategy table corresponding to the service attribute;
and the sending module is used for sending the signal containing the data packet to be transmitted to the second equipment through the bottommost layer of the protocol stack of the first equipment.
7. A data transmission apparatus, comprising:
the receiving module is used for receiving a signal containing a data packet to be transmitted through the bottom layer of a second equipment protocol stack, wherein the signal comprises a field of a preset number of a demodulation strategy of the data packet to be transmitted;
and the demodulation module is used for demodulating the signal according to the number of the demodulation strategy to acquire the data in the data packet.
8. A data transmission system, comprising:
the first device is used for changing a field related to a modulation strategy in a signal to be transmitted according to a service attribute of a data packet to be transmitted, wherein the field related to the modulation strategy is a preset number of a modulation and coding strategy table corresponding to the service attribute; sending the signal containing the data packet to be transmitted to second equipment through the bottommost layer of a protocol stack of the first equipment;
the second device is configured to receive, through a bottom layer of a protocol stack at a receiving end, a signal including a data packet to be transmitted, where the signal includes a field of a number of a preset demodulation policy of the data packet to be transmitted; and demodulating the signal according to the number of the demodulation strategy to acquire the data in the data packet.
9. An electronic device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data transfer method of any of claims 1-5.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the data transmission method according to any one of claims 1 to 5.
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| CN202011494152.3A CN114650119B (en) | 2020-12-17 | 2020-12-17 | Data transmission method, device, system, electronic equipment and storage medium |
| PCT/CN2021/118013 WO2022127222A1 (en) | 2020-12-17 | 2021-09-13 | Data transmission method, apparatus and system, and electronic device and storage medium |
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| CN202011494152.3A CN114650119B (en) | 2020-12-17 | 2020-12-17 | Data transmission method, device, system, electronic equipment and storage medium |
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| CN106603194A (en) * | 2015-10-19 | 2017-04-26 | 普天信息技术有限公司 | Method and apparatus for adjusting modulation and coding scheme, and base station |
| CN110169175A (en) * | 2017-12-15 | 2019-08-23 | 联发科技（新加坡）私人有限公司 | Method and apparatus in mobile communication to determining modulation encoding scheme table |
| WO2019216588A1 (en) * | 2018-05-11 | 2019-11-14 | 삼성전자 주식회사 | Method and device for transmitting and receiving control information in wireless cellular communication system |
| CN111756474A (en) * | 2019-03-29 | 2020-10-09 | 华为技术有限公司 | Data transmission method and device |
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| CN110034906B (en) * | 2018-01-11 | 2022-08-30 | 株式会社Kt | Method and apparatus for transmitting and/or receiving scheduling control information for physical data channel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106603194A (en) * | 2015-10-19 | 2017-04-26 | 普天信息技术有限公司 | Method and apparatus for adjusting modulation and coding scheme, and base station |
| CN110169175A (en) * | 2017-12-15 | 2019-08-23 | 联发科技（新加坡）私人有限公司 | Method and apparatus in mobile communication to determining modulation encoding scheme table |
| WO2019216588A1 (en) * | 2018-05-11 | 2019-11-14 | 삼성전자 주식회사 | Method and device for transmitting and receiving control information in wireless cellular communication system |
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