CN111988849A - Data transmission method, device, system, equipment and storage medium - Google Patents
Data transmission method, device, system, equipment and storage medium Download PDFInfo
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- CN111988849A CN111988849A CN201910431454.7A CN201910431454A CN111988849A CN 111988849 A CN111988849 A CN 111988849A CN 201910431454 A CN201910431454 A CN 201910431454A CN 111988849 A CN111988849 A CN 111988849A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a data transmission method, a device, a system, equipment and a storage medium, wherein the method is based on a transmission system, the transmission system comprises a base station and a terminal, and the method comprises the following steps: a base station acquires configuration parameters; wherein, the configuration parameters comprise: the method comprises the steps that the first number and the modulation mode of resource blocks are achieved, and the upper limit value of the first number is larger than 3; the base station determines the size of the transmission block according to the first quantity and the modulation mode; and the base station sends the configuration parameters and the size of the transmission block to the terminal so that the terminal can set a subframe binding mode and transmit data to the base station in the subframe binding mode. In the invention, a subframe binding mode is adopted for data transmission, and one PDCCH can schedule an uplink shared channel after being authorized so as to adapt to the requirements of a large amount of uplink services. And the upper limit value of the first number of schedulable resource blocks is larger than 3, so that the size of the transmission block is larger to obtain a larger transmission rate.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, system, device, and storage medium.
Background
A carrier aggregation technology is defined in a 3GPP protocol, a large amount of video monitoring services exist in a private network, user equipment needs to be configured as asymmetric uplink carrier aggregation, and the user equipment can transmit uplink data on multiple carriers.
In an asymmetric uplink carrier aggregation scenario, a Downlink carrier needs to simultaneously schedule multiple uplink carriers, and if the bandwidth of the Downlink carrier is small, when multiple uplink carriers are scheduled, the resources of a Downlink Control Channel (PDCCH for short) are relatively tight, which may cause a problem of insufficient PDCCH resources. In order to solve the above problem, when the PDCCH resource is insufficient, a part of the Downlink Shared CHannel (PDSCH) may be divided to be used as the PDCCH CHannel.
However, when the downlink carrier bandwidth is small, the PDSCH resources are also relatively tight, which results in the technical problem that the existing data transmission method cannot meet the requirement of a large amount of uplink services.
Disclosure of Invention
The invention provides a data transmission method, a device, a system, equipment and a storage medium, which aim to solve the technical problem that the existing data transmission method can not meet the requirements of a large amount of uplink services due to the fact that PDSCH resources are also relatively tense when the bandwidth of a downlink carrier wave is small.
In a first aspect, the present invention provides a data transmission method, based on a transmission system, where the transmission system includes a base station and a terminal, and the data transmission method includes:
a base station acquires configuration parameters; wherein, the configuration parameters comprise: a first number and a modulation mode of Resource blocks (RB for short), wherein the upper limit value of the first number is larger than 3;
the base station determines the size of the transmission block according to the first quantity and the modulation mode;
the base station sends the configuration parameters and the size of the Transmission block to the terminal, so that the terminal performs subframe bundling (TTI bundling for short) mode setting, and transmits data to the base station in the subframe bundling mode.
In the data transmission method provided by the invention, a base station acquires configuration parameters and requires that the upper limit value of the first quantity of resource blocks is greater than 3, then determines the size of a transmission block according to the first quantity and a modulation mode according to the base station to acquire the configuration parameters and the size of the transmission block of a subframe binding mode, and the base station sends the configuration parameters and the size of the transmission block to a terminal to enable the terminal to carry out subframe binding mode setting, so that terminal equipment can transmit data to the base station in the subframe binding mode. Compared with the existing transmission method, the method is limited by PDCCH and PDSCH, and can not meet a large amount of Uplink service requirements. And the upper limit value of the first number of schedulable resource blocks is larger than 3, so that the size of the transmission block is larger to obtain a larger transmission rate.
Optionally, the configuring parameters further include: binding a second number of subframes, and determining size information of the transport block by the base station according to the first number and the modulation mode, wherein the size information specifically comprises the following steps:
the base station determines a Transport Block Size (TBS) index from a preset Modulation mode table (MCS for short) according to a Modulation mode; wherein, the MCS is a one-to-one mapping table of the modulation mode and the TBS index;
the base station determines the correction number of the resource blocks according to the first number and the second number;
the base station determines the size of the transmission block from a preset TBS table according to the TBS index and the correction quantity, wherein the TBS table is a one-to-one mapping table of the TBS index, the correction quantity and the size of the transmission block.
In the data transmission method provided by the invention, the first number of the schedulable resource blocks is corrected by using the second number of the binding subframes to obtain the corrected number of the resource blocks, the size of the transmission block is determined from the preset TBS table according to the TBS index and the corrected number, and the size of the transmission block is further increased to obtain a higher transmission rate.
Optionally, the determining, by the base station, the modified number of resource blocks according to the first number and the second number specifically includes:
determining the correction amount according to a first formula, wherein the first formula is as follows: n is a radical of xN × S, N denotes a first number and S denotes a second number.
In the data transmission method provided by the invention, the correction number of the resource blocks is the product of the first number of the schedulable resource blocks and the second number of the binding subframes, so that the size of the transmission block of each subframe reaches the maximum, and further, each subframe transmits data at the maximum transmission rate.
Optionally, the modulation method includes: quadrature phase shift keying, QPSK, and multilevel quadrature amplitude modulation.
In the data transmission method provided by the invention, not only one modulation mode is adopted, but also quadrature phase shift keying QPSK and multi-system quadrature amplitude modulation can be adopted, the modulation modes are enriched, more transmission block size TBS indexes can be obtained, further larger transmission block sizes can be obtained, and the data transmission rate is further improved.
In a second aspect, the present invention provides a data transmission method, based on a transmission system, where the transmission system includes a base station and a terminal, and the transmission system includes:
the terminal obtains configuration parameters and the size of a transmission block, wherein the configuration parameters comprise: the method comprises the steps that the first number and the modulation mode of resource blocks are achieved, and the upper limit value of the first number is larger than 3;
the terminal sets a subframe binding mode according to the configuration parameters and the size of the transmission block;
And the terminal transmits data to the base station in the subframe binding mode.
In the data transmission method provided by the invention, the terminal acquires the configuration parameters and the size of the transmission block, and the terminal sets the subframe binding mode according to the configuration parameters and the size of the transmission block, so that the terminal equipment can transmit data to the base station in the subframe binding mode. Compared with the existing transmission method, the method is limited by the PDCCH and the PDSCH, and cannot meet the requirements of a large amount of uplink services. Since the upper limit value of the first number of the schedulable resource blocks is greater than 3 and the size of the transmission block is positively correlated with the first number, the size of the transmission block is larger to obtain a larger transmission rate.
In a third aspect, the present invention provides a base station, including:
the first acquisition module is used for acquiring configuration parameters; wherein, the configuration parameters comprise: the method comprises the steps that the first number and the modulation mode of resource blocks are achieved, and the upper limit value of the first number is larger than 3;
a determining module, configured to determine the size of the transport block according to the first number and the modulation scheme;
And the sending module is used for sending the configuration parameters and the size of the transmission block to the terminal so as to enable the terminal to carry out subframe binding mode setting and carry out uplink data transmission in the subframe binding mode.
Optionally, the configuring parameters further include: a second number of bundled subframes, the determining module being specifically configured to:
the base station determines a Transport Block Size (TBS) index from a preset modulation mode table (MCS) according to a modulation mode; wherein, the MCS is a one-to-one mapping table of the modulation mode and the TBS index;
the base station determines the correction number of the resource blocks according to the first number and the second number;
the base station determines the size of the transmission block from a preset TBS table according to the TBS index and the correction quantity, wherein the TBS table is a one-to-one mapping table of the TBS index, the correction quantity and the size of the transmission block.
Optionally, the determining module is specifically configured to:
determining the correction amount according to a first formula, wherein the first formula is as follows: n is a radical ofxN × S, N denotes a first number and S denotes a second number.
Optionally, the modulation method includes: quadrature phase shift keying, QPSK, and multilevel quadrature amplitude modulation.
In a fourth aspect, the present invention provides a terminal, including:
a second obtaining module, configured to obtain a configuration parameter and a size of a transport block, where the configuration parameter includes: the method comprises the steps that the first number and the modulation mode of resource blocks are achieved, and the upper limit value of the first number is larger than 3;
The setting module is used for setting a subframe binding mode according to the configuration parameters and the size of the transmission block;
and the transmission module is used for transmitting data to the base station in the subframe binding mode.
In a fifth aspect, the present invention provides a transmission system, including the base station according to the third aspect and the terminal according to the fourth aspect.
In a fifth aspect, the present invention provides an electronic device, comprising: at least one processor and memory;
wherein the memory stores computer execution instructions;
the at least one processor executes computer-executable instructions stored by the memory to cause the at least one processor to perform the data processing method of the first aspect and the alternatives.
In a sixth aspect, the present invention provides a computer-readable storage medium having stored thereon computer-executable instructions, which, when executed by a processor, implement the data processing method of the first aspect and alternatives.
The invention provides a data transmission method, a device, a system, equipment and a storage medium, wherein in the data transmission method, a base station acquires configuration parameters and requires that the upper limit value of a first quantity of resource blocks is larger than 3, then determines the size of a transmission block according to the first quantity and a modulation mode so as to obtain the configuration parameters and the size of the transmission block of a subframe binding mode, the base station sends the configuration parameters and the size of the transmission block to a terminal, the terminal sets the subframe binding mode according to the configuration parameters and the size of the transmission block, and the terminal transmits data to the base station in the subframe binding mode. Compared with the existing transmission method, the method is limited by PDCCH and PDSCH resources by scheduling a plurality of uplink carriers to adapt to the uplink service requirements, and cannot meet a large amount of uplink service requirements. And the upper limit value of the first number of schedulable resource blocks is larger than 3, so that the size of the transmission block is larger to obtain a larger transmission rate.
Drawings
Fig. 1 is a schematic diagram of a transmission system according to an exemplary embodiment of the present invention;
FIG. 2 is a method flow diagram illustrating a method of data transmission in accordance with an exemplary embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base station according to an exemplary embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal according to an exemplary embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the current Long Term Evolution (LTE) system, a single carrier supports a system bandwidth of 20M at maximum, and if a larger bandwidth is to be supported, a carrier aggregation technology needs to be adopted.
In the 3rd Generation Partner Project (3 GPP) protocol, aggregation of a maximum of 5 carriers is supported, but the number of downlink carriers is required to be equal to or greater than the number of uplink carriers. In a public network operator network, the general downlink service requirement is greater than the uplink service requirement, and the carrier aggregation defined by 3GPP can better satisfy the operator network.
However, in some industrial network applications, that is, in a private network, there may be a large amount of video monitoring services, and at this time, the uplink service requirement is greater than the downlink service requirement, and in this case, the carrier aggregation scheme defined by 3GPP cannot well meet the requirements of the industrial network.
In order to better satisfy a large number of uplink service demand scenarios, an asymmetric carrier aggregation technology in which the number of uplink carriers is greater than the number of downlink carriers needs to be introduced.
For example, the current domestic public security industry has 2 × 5M FDD frequency spectrums of 351-356/361-366 and 8M asymmetric frequency spectrums of 336-344. If the above uplink carrier aggregation is adopted, the FDD frequency spectrums 351-356/361-366 can be used as FDD main carriers, and the asymmetric frequency spectrums 336-344 can be used as SUL carriers.
In an asymmetric uplink carrier aggregation scenario, a downlink carrier needs to schedule multiple uplink carriers at the same time, and if the bandwidth of the downlink carrier is small, when multiple uplink carriers are scheduled, downlink control channel resources of the downlink carrier are relatively tense, which may cause a problem of insufficient PDCCH resources. In order to solve the above problem, when the PDCCH resource is insufficient, a part of the downlink shared channel may be divided to be used as the PDCCH channel. However, when the downlink carrier bandwidth is small, the PDSCH resources are also tense.
The invention provides a data transmission method, a device, a system, equipment and a storage medium, which aim to solve the technical problem that the existing data transmission method can not meet the requirements of a large amount of uplink services due to the fact that PDSCH resources are also relatively tense when the bandwidth of a downlink carrier wave is small.
Fig. 1 is a schematic diagram illustrating a transmission system according to an exemplary embodiment of the present invention. As shown in fig. 1, the transmission system 100 provided by the present invention includes: a base station 110 and a terminal 120.
The data transmission mode is determined between the base station 110 and the terminal 120, for example, the subframe bundling mode is adopted between the base station 110 and the terminal 120 for uplink data transmission. The base station 110 sends the configuration parameters of the subframe bundling pattern and other parameters to the terminal 120 so that the terminal 120 completes the configuration of the subframe bundling pattern. The terminal 120 operates in the subframe bundling mode and transmits uplink data to the base station 110.
In the transmission system, the configuration parameter includes a first number of resource blocks and a modulation scheme, where an upper limit value of the number of resource blocks is greater than 3, and the modulation scheme may be multiple modulations. And the base station obtains the size of the transmission block, the configuration parameters sent to the terminal by the base station and the size of the transmission block according to the modulation mode and the first number of the resource blocks, so that the terminal completes the configuration of the subframe binding mode.
The transmission system is applied to a private network, that is, the terminal 120 is a private network terminal, the base station 110 is a private network base station, and in the private network, a large amount of video monitoring services exist, in order to adapt to a large amount of uplink data services, a subframe binding mode is adopted between the base station 110 and the terminal 120, in the TTI binding mode, the number of Hybrid Automatic Repeat reQuest (HARQ) processes is changed to 4, and the bound 4 subframes respectively send different coding versions of a Transport Block (Transport Block, TB for short), thereby adapting to a large amount of uplink data service requirements. In addition, the upper limit value of the number of the resource blocks is greater than 3, the modulation mode can be various modulation modes, the base station obtains the size of the transmission block according to the modulation mode and the first number of the resource blocks, the size of the transmission block is increased, and then the data transmission rate is improved.
Fig. 2 is a flowchart illustrating a method of data transmission according to an exemplary embodiment of the present invention. As shown in fig. 2, the data transmission method shown in this embodiment includes the following steps:
s201, the base station acquires configuration parameters.
More specifically, the configuration parameters include: a first number of resource blocks and a modulation scheme, wherein an upper limit value of the first number of resource blocks is greater than 3. The modulation method comprises the following steps: quadrature phase shift keying, QPSK, and multilevel quadrature amplitude modulation. The multilevel Quadrature Amplitude Modulation includes 16Quadrature Amplitude Modulation (16 QAM), 64 Quadrature Amplitude Modulation 64QAM, and 256 Quadrature Amplitude Modulation 256QAM … …. The first number of resource blocks may be determined according to the uplink data traffic demand and the resource usage of the base station, and the modulation scheme may be determined.
S202, the base station determines the size of the transmission block according to the first quantity and the modulation mode.
More specifically, the base station determines the size of the transport block according to the following manner:
s3001, the base station determines a transport block size TBS index from a preset modulation scheme table MCS according to the modulation scheme.
The MCS is a one-to-one mapping table of modulation modes and TBS indexes, and is specifically shown in table 1 below.
TABLE 1 modulation mode Table
S3002, the base station determines the correction number of the resource blocks according to the first number and the second number.
More specifically, the second number is the number of bundled subframes, and typically, the second number value is 4. Modifying the first number of schedulable resource blocks according to the following formula:
Nx＝N×S
wherein N represents a first number of schedulable resource blocks and S represents a second number of bundling subframes.
S3003, the base station determines the size of the transport block from a preset TBS table according to the TBS index and the correction quantity.
More specifically, the TBS table is a one-to-one mapping table of TBS indexes, modification numbers, and sizes of transport blocks. Specifically, as shown in table 2 below.
TABLE 2 TBS Table
TABLE 2 TBS continuation Table
For example, there are 10 schedulable resource blocks, if TB query is performed according to 10 RBs, and the selectable maximum TB block is 7480, the maximum supported rate is: 7480/4-1870 kbps.
If the number of schedulable resource blocks is modified to 10 × 4 to 40, TBs are selected according to 40 RBs with size 29296 as the maximum selectable TB block, the maximum achievable rate is: 29296/4 7324 kbps.
S203, the base station sends the configuration parameters and the size of the transmission block to the terminal.
More specifically, in order to enable data transmission between the base station and the terminal according to the configuration parameter and the size of the transport block, the base station needs to send the configuration parameter and the size of the transport block to the terminal, so that the terminal can perform configuration of the subframe bundling mode according to the configuration parameter and the size of the transport block.
S204, the terminal determines the size of the transmission block according to the first quantity and the modulation mode to set the subframe binding mode.
More specifically, after receiving the configuration parameter and the size of the transport block, the terminal performs subframe bundling mode setting according to the configuration parameter and the size of the transport block, so that the terminal can operate in the subframe bundling mode.
And S205, the terminal transmits data to the base station in the subframe binding mode.
In the data transmission method provided in this embodiment, the base station obtains the configuration parameter, and requires that the upper limit value of the first number of the resource blocks is greater than 3, and then determines the size of the transmission block according to the first number and the modulation mode by the base station to obtain the configuration parameter of the subframe binding mode' and the size of the transmission block, the base station sends the configuration parameter and the size of the transmission block to the terminal, the terminal performs subframe binding mode setting according to the configuration parameter and the size of the transmission block, and the terminal transmits data to the base station in the subframe binding mode. Compared with the existing transmission method, the invention adopts the subframe binding mode to transmit data, and one PDCCH can schedule the PUSCH after being authorized so as to adapt to a large amount of uplink service requirements. And the upper limit value of the first number of schedulable resource blocks is larger than 3, so that the size of the transmission block is larger to obtain a larger transmission rate.
Fig. 3 is a schematic structural diagram of a base station according to an exemplary embodiment of the present invention. As shown in fig. 3, the base station 110 shown in the present embodiment includes:
a first obtaining module 111, configured to obtain configuration parameters; wherein, the configuration parameters comprise: the method comprises the steps that the first number and the modulation mode of resource blocks are achieved, and the upper limit value of the first number is larger than 3;
a determining module 112, configured to determine the size of the transport block according to the first number and the modulation scheme;
a sending module 113, configured to send the configuration parameter and the size of the transport block to the terminal, so that the terminal performs subframe bundling mode setting, and performs uplink data transmission in the subframe bundling mode.
Optionally, the configuring parameters further include: the determining module 112 is specifically configured to:
the base station determines a Transport Block Size (TBS) index from a preset modulation mode table (MCS) according to a modulation mode; wherein, the MCS is a one-to-one mapping table of the modulation mode and the TBS index;
the base station determines the correction number of the resource blocks according to the first number and the second number;
the base station determines the size of the transmission block from a preset TBS table according to the TBS index and the correction quantity, wherein the TBS table is a one-to-one mapping table of the TBS index, the correction quantity and the size of the transmission block.
Optionally, the determining module 112 is specifically configured to:
determining the correction amount according to a first formula, wherein the first formula is as follows: n is a radical ofxN × S, N denotes a first number and S denotes a second number.
Optionally, the modulation method includes: quadrature phase shift keying, QPSK, and multilevel quadrature amplitude modulation.
Fig. 4 is a schematic structural diagram of a terminal according to an exemplary embodiment of the present invention. As shown in fig. 4, the terminal 120 shown in the present embodiment includes:
a second obtaining module 121, configured to obtain configuration parameters and a size of a transport block, where the configuration parameters include: the method comprises the steps that the first number and the modulation mode of resource blocks are achieved, and the upper limit value of the first number is larger than 3;
a setting module 122, configured to perform subframe bundling mode setting according to the configuration parameter and the size of the transport block;
a transmission module 123, configured to transmit data to the base station in the subframe bundling mode.
Fig. 5 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention. As shown in fig. 5, the electronic device 300 of the present embodiment includes: a processor 301, and a memory 302, wherein,
a memory 302 for storing computer-executable instructions;
the processor 301 is configured to execute the computer-executable instructions stored in the memory to implement the steps performed by the receiving device in the above embodiments. Reference may be made in particular to the description relating to the method embodiments described above.
Alternatively, the memory 302 may be separate or integrated with the processor 301.
When the memory 302 is provided separately, the electronic device 300 further comprises a bus 303 for connecting the memory 302 and the processor 301.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer executing instruction is stored in the computer-readable storage medium, and when a processor executes the computer executing instruction, the data transmission method as described above is implemented.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A data transmission method, applied to a base station, the method comprising:
acquiring configuration parameters; wherein the configuration parameters include: a first number of resource blocks and a modulation mode, wherein the upper limit value of the first number is greater than 3;
Determining the size of a transmission block according to the first quantity and the modulation mode;
and sending the configuration parameters and the size of the transmission block to a terminal so that the terminal can set a subframe binding mode and transmit data to the base station in the subframe binding mode.
2. The method of claim 1, wherein the configuration parameters further comprise: binding a second number of subframes, and determining, by the base station, size information of the transport block according to the first number and the modulation scheme, which specifically includes:
determining a Transport Block Size (TBS) index from a preset modulation mode table (MCS) according to the modulation mode; wherein the MCS is a one-to-one mapping table of the modulation mode and the TBS index;
determining a correction number of the resource blocks according to the first number and the second number;
and determining the size of the transmission block from a preset TBS table according to the TBS index and the correction quantity, wherein the TBS table is a one-to-one mapping table of the TBS index, the correction quantity and the size of the transmission block.
3. The method according to claim 2, wherein the base station determines the modified number of resource blocks according to the first number and the second number, specifically comprising:
According to a first formulaDetermining the correction quantity, wherein the first formula is as follows: n is a radical ofxN × S, N denotes a first number and S denotes a second number.
4. The method according to any one of claims 1 to 3, wherein the modulation scheme comprises: quadrature phase shift keying, QPSK, and multilevel quadrature amplitude modulation.
5. A data transmission method, applied to a terminal, the method comprising:
obtaining configuration parameters and the size of a transmission block, wherein the configuration parameters comprise: a first number of resource blocks and a modulation mode, wherein the upper limit value of the first number is greater than 3;
setting a subframe binding mode according to the configuration parameters and the size of the transmission block;
and transmitting data to a base station in the subframe binding mode.
6. A base station, characterized in that the base station comprises:
the acquisition module is used for acquiring configuration parameters; wherein the configuration parameters include: a first number of resource blocks and a modulation mode, wherein the upper limit value of the first number is greater than 3;
a determining module, configured to determine a size of a transport block according to the first number and the modulation scheme;
and the sending module is used for sending the configuration parameters and the size of the transmission block to a terminal so as to enable the terminal to carry out subframe binding mode setting and carry out uplink data transmission in the subframe binding mode.
7. A terminal, characterized in that the terminal comprises:
an obtaining module, configured to obtain a configuration parameter and a size of a transport block, where the configuration parameter includes: a first number of resource blocks and a modulation mode, wherein the upper limit value of the first number is greater than 3;
the setting module is used for setting a subframe binding mode according to the configuration parameters and the size of the transmission block;
and the transmission module is used for transmitting data to the base station in the subframe binding mode.
8. A transmission system comprising a base station according to claim 6 and a terminal according to claim 7.
9. An electronic device, comprising: at least one processor and memory;
wherein the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the data transfer method of any of claims 1 to 4.
10. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, implement the data transmission method of any one of claims 1 to 4.
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