CN112956269B - Data transmission method, device, network equipment and storage medium - Google Patents
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Abstract
The application discloses a data transmission method, a data transmission device, network equipment and a storage medium, and belongs to the technical field of communication. The method comprises the following steps: determining the MCS of the user equipment according to the channel quality of the user equipment; according to the index value of the MCS, acquiring the number of resource units corresponding to the target spectrum efficiency from a target mapping relation, wherein the target spectrum efficiency has the highest efficiency in the spectrum efficiencies corresponding to the index value of the MCS, and the target mapping relation is used for indicating the relation among the index value, the number of the resource units and the spectrum efficiency; acquiring the number of target carriers according to the number of resource units corresponding to the target spectrum efficiency; and allocating resources for data transmission to the user equipment according to the target carrier number. According to the method and the device, the utilization rate of discrete frequency points in the coverage range of the base station is improved by obtaining the target carrier number with the maximum spectrum efficiency, so that the peak rate of the coverage range of the base station is improved.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, an apparatus, a network device, and a storage medium.
Background
With the continuous development of communication technology, the situation that the available frequency spectrum of wireless communication is discontinuous exists in some countries and regions, the bandwidth of each discrete frequency point provided by a base station is small, user equipment can only access at a low speed, and in order to meet the communication requirement of high-speed data service, a discrete narrowband communication system is often adopted to aggregate a plurality of discrete frequency points for use.
When data transmission is performed in a discrete narrowband communication system, a base station provides communication service for at least one cell, the base station selects a suitable Modulation and Coding Scheme (MCS) according to a buffer state of user equipment and channel quality of a link, determines the number of Resource Units (RUs) according to a Transport Block Size (TBS) table, determines the maximum carrier aggregation number of the user equipment based on the number of resource units, and performs resource allocation for the user equipment according to the maximum carrier aggregation number for data transmission.
However, in the above-mentioned discrete narrowband communication system, when the maximum carrier aggregation number is allocated to the user equipment, each user equipment in the coverage area of the base station cannot reach the peak rate in data transmission, that is, cannot reach the maximum cell rate that can be reached when data transmission is performed in the coverage area of the base station, and the utilization rate of the discrete frequency points in the coverage area of the base station is still insufficient.
Disclosure of Invention
The embodiment of the disclosure provides a data transmission method, a data transmission device, a network device and a storage medium, which can solve the problems that a user device cannot reach a peak rate in data transmission and the utilization rate of discrete frequency points in a coverage range of a base station is insufficient. The technical scheme is as follows:
in a first aspect, a data transmission method is provided, where the method includes:
determining the MCS of the user equipment according to the channel quality of the user equipment;
according to the index value of the MCS, acquiring the number of resource units corresponding to the target spectrum efficiency from a target mapping relation, wherein the target spectrum efficiency has the highest efficiency in the spectrum efficiencies corresponding to the index value of the MCS, and the target mapping relation is used for indicating the relation among the index value, the number of the resource units and the spectrum efficiency;
acquiring the number of target carriers according to the number of resource units corresponding to the target spectrum efficiency;
and allocating resources for data transmission to the user equipment according to the target carrier number.
In one possible embodiment, the obtaining, according to the index value of the MCS, the number of resource units corresponding to the target spectrum efficiency from the target mapping relationship includes:
determining at least one spectrum efficiency corresponding to the index value of the MCS from the target mapping relation according to the index value of the MCS;
determining the target spectral efficiency among the at least one spectral efficiency;
and acquiring the number of resource units corresponding to the target spectrum efficiency from the target mapping relation.
In one possible embodiment, determining, from the target mapping relationship according to the index value of the MCS, at least one spectral efficiency corresponding to the index value of the MCS includes:
determining the target mapping relation from a plurality of mapping relations according to the MCS, wherein the target mapping relation corresponds to the MCS;
and determining the at least one spectrum efficiency corresponding to the index value of the MCS from the target mapping relation.
In one possible embodiment, among the at least one spectral efficiency, determining the target spectral efficiency comprises:
the at least one spectral efficiency is ranked from large to small, and the maximum value of the at least one spectral efficiency is determined as the target spectral efficiency.
In one possible implementation, the target mapping relationship is preset; or the like, or a combination thereof,
the target mapping relationship is generated based on a relationship between the index value, the number of resource units, and the TBS.
In one possible embodiment, before determining the MCS of the user equipment according to the channel quality of the user equipment, the method further includes:
acquiring the user equipment from a user equipment queue of data to be transmitted, wherein the number of the user equipment in the user equipment queue is more than or equal to 1;
acquiring the current available carrier number, wherein the available carrier number is the number of idle carriers which can be currently provided in a cell;
when the number of the available carriers is 0, allocating no resource for data transmission to the user equipment;
when the number of available carriers is not 0, the step of determining the MCS of the user equipment according to the channel quality of the user equipment is performed.
In one possible implementation, the obtaining the number of target carriers according to the number of resource units corresponding to the target spectrum efficiency includes:
acquiring the carrier number of the resource unit number corresponding to the target spectrum efficiency when the frame number is 1 frame;
and acquiring the minimum value of the carrier number and the available carrier number, and taking the minimum value as the target carrier number.
In a second aspect, a data transmission apparatus is provided for executing the data transmission method. Specifically, the data transmission apparatus includes a functional module configured to execute the data transmission method provided in the first aspect or any one of the optional manners of the first aspect.
In a third aspect, a network device is provided, which includes a transceiver, a processor, and a memory, where at least one instruction is stored, and the instruction is loaded and executed by the processor to implement the operations performed by the data transmission method according to any one of the first aspect.
In a fourth aspect, a computer-readable storage medium is provided, in which at least one instruction is stored, the instruction being loaded and executed by a processor to implement the operations performed by the data transmission method according to any one of the first aspect.
The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:
the data transmission method provided by the embodiment of the disclosure determines a Modulation and Coding Scheme (MCS) through the channel quality of user equipment, then obtains the number of resource units corresponding to a target spectrum efficiency based on a target mapping relation according to an index value of the MCS, obtains the number of target carriers based on the number of the resource units, and allocates resources according to the number of the target carriers, so that a baseband signal of a base station is converted into a modulation signal suitable for channel transmission through the MCS, thereby obtaining the number of the target carriers with the maximum spectrum efficiency, improving the utilization rate of discrete frequency points in the coverage range of the base station, and improving the peak rate of the coverage range of the base station.
Drawings
FIG. 1 is a schematic diagram of a data transmission system provided by the present disclosure in accordance with an exemplary embodiment;
fig. 2 is a schematic structural diagram of a network device provided by the present disclosure according to an exemplary embodiment;
FIG. 3 is a flow chart of a method of data transmission provided by the present disclosure according to an exemplary embodiment;
fig. 4 is a schematic structural diagram of a data transmission device provided in the present disclosure according to an exemplary embodiment.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a data transmission system provided by the present disclosure according to an exemplary embodiment, and configured to execute any data transmission method in the present disclosure. It should be noted that the following is only an exemplary description of the data transmission system, and in practical applications, those skilled in the art should understand that the data transmission system is not limited to the architecture and functions precisely pointed out in the following description and the attached drawings. As shown in fig. 1, the data transmission system includes: a network device 101 and at least one user device 102.
A network device 101, which is a station performing data interaction with a user equipment in a certain radio coverage area. The network device 101 may include receiver, transmitter, and processor portions. In this embodiment of the present disclosure, the network device 101 is specifically an evolved node B (eNB) or another type of base station, and is configured to perform data interaction with the user equipment 102, so as to execute any data transmission method in the present disclosure.
It should be noted that, in practical applications, the data transmission system may further include other network element entities, for example, a serving gateway device (SGW), a public data network gateway (PND-GW), and the like, and the disclosure does not specifically limit other parts included in the data transmission system.
Fig. 2 is a schematic structural diagram of a network device according to an exemplary embodiment of the present disclosure, where the network device 200 may generate relatively large differences due to different configurations or performances, and may include one or more processors (CPUs) 201, one or more memories 202, and one or more transceivers 203, where the memory 202 stores at least one instruction, and the at least one instruction is loaded and executed by the processor 201 to implement a method executed on a network device side in the following method embodiments. The transceiver may be a wired or wireless network interface, a keyboard, an input/output interface, and other components to facilitate input and output, and the network device may further include other components for implementing the device function, which is not described herein again.
In an exemplary embodiment, a computer-readable storage medium, such as a memory, including instructions executable by a processor in a network device to perform a data transfer method in the following embodiments is also provided. For example, the computer-readable storage medium may be a read only memory image (ROM), a Random Access Memory (RAM), a compact disc-read-only memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.
Fig. 3 is a flowchart of a data transmission method provided by the present disclosure according to an exemplary embodiment, which may be performed based on the implementation environment shown in fig. 1 and is described by taking a network device as a base station as an example. Referring to fig. 3, the embodiment includes:
301. the base station acquires user equipment u (i) from a user equipment queue u = (u 1, u 2.. Multidata, un) to be transmitted, wherein the number n of the user equipment in the user equipment queue u = (u 1, u 2.. Multidata, un) is greater than or equal to 1.
In the embodiment of the present disclosure, the base station may maintain a ue queue based on the current data transmission requirement, and the ues in the ue queue may be ues requiring uplink data or downlink data. In the following embodiments, the user equipment queue is denoted by u = (u 1, u 2.. Times.un), and the ith user equipment in the user equipment queue is denoted by u (i).
In an embodiment, when the base station acquires the ue from the ue queue, the base station may perform the operation according to a preset rule, where the preset rule may acquire the ue with the highest channel quality, or may acquire the ue with the largest amount of data to be transmitted. The embodiment of the present disclosure is described by taking an example that the user equipment continuously transmits a large data packet, and this data transmission manner enables the amount of data to be transmitted of the user to be greater than or equal to the maximum buffer report under the protocol constraint, and obtains the peak rate of the coverage area of the base station.
The embodiment of the present disclosure is described by taking a certain resource allocation in the resource allocation process of the base station as an example, for the base station, after the resource allocation is completed for the i-1 st ue, step 301 and subsequent steps provided in the embodiment of the present disclosure may be executed, and after the resource allocation to the ue u (i) is completed, the steps of the embodiment of the present disclosure may be continuously performed for the i +1 st ue in the ue queue.
302. The base station acquires the current available carrier number N _ available, wherein the available carrier number N _ available is the number of idle carriers which can be currently provided in the coverage area of the base station.
Step 302 is actually a process in which the base station acquires idle carriers that can be currently provided in the coverage area of the base station according to the current communication resource allocation situation, and determines the number of all idle carriers as the number of available carriers.
When the number N _ available of the available carriers is 0, it indicates that there is no idle carrier in the coverage area of the base station, and the method provided by the embodiment of the present disclosure may be continuously executed until the carrier is in an idle state; when the number of available carriers N _ available is not 0, the following steps 303-310 are performed.
303. When the number N _ available of the available carriers is not 0, the base station determines a Modulation and Coding Scheme (MCS) of the ue according to the channel quality of the ue.
The channel quality is used to indicate the quality of uplink or downlink communication between the ue and the base station, and may be indicated by a signal to interference plus noise ratio (SINR), which may be 4 bits of data, for example. In some possible embodiments, the base station may acquire the channel quality based on a Channel Quality Indicator (CQI) of the user equipment, and the embodiment of the present disclosure does not specifically limit the manner of acquiring the channel quality.
It should be noted that the user equipments with different channel qualities may correspond to different modulation and coding schemes MCS, which are used to indicate a method for converting the baseband signal transmitted by the base station into a modulated signal suitable for channel transmission, such as Quadrature Phase Shift Keying (QPSK), quadrature amplitude modulation (16 QAM), and 64 QAM.
The step 303 is actually a process of determining the MCS of the user equipment by the base station according to the corresponding relationship between the channel quality and the MCS, for example, when the SINR value of the user equipment is 1, selecting a QPSK modulation method for the user equipment according to the corresponding relationship between the channel quality and the MCS.
304. And the base station determines the target mapping relation from a plurality of mapping relations according to the MCS, wherein the target mapping relation corresponds to the MCS.
Wherein each MCS corresponds to a mapping relationship, each mapping relationship being used to indicate a relationship between an index value, a number of resource units Nru, and a spectral efficiency ffjru _ m.
Alternatively, the mapping relationships may be stored in the form of a spectrum efficiency table, each row of the spectrum efficiency table corresponds to one MCS index value, each column corresponds to one resource unit number Nru, and each pair of the MCS index value and the resource unit number Nru corresponds to one spectrum efficiency ff _ ru _ m; optionally, under the target mapping relationship, each row of the spectrum efficiency table may further correspond to one resource unit number Nru, and accordingly, each column corresponds to one MCS index value. For example, the spectral efficiency table may be as shown in table 1:
TABLE 1
| Index value | Nru＝1 | Nru＝2 | … | Nru＝m |
| MCS0 | Eff 01 | Eff 02 | … | Eff 0m |
| MCS1 | Eff 11 | Eff 12 | … | Eff 1m |
| … | … | … | … | … |
| MCSn | Eff n1 | Eff n2 | … | Eff nm |
Optionally, the mapping relationships may be preset, that is, the mapping relationships are predetermined by a spectrum efficiency table stored by the base station; or, the plurality of mapping relationships are generated in real time based on the relationship between the index value, the number of resource units Nru, and the TBS.
In a possible embodiment, the relationship between the index value, the number of resource units Nru and the TBS may also be stored in the base station in advance in the form of a TBS table, optionally, each row of the TBS table corresponds to one MCS index value, each column corresponds to one number of resource units Nru, and each pair of MCS index value and number of resource units Nru corresponds to one TBS; optionally, each row of the TBS table may also correspond to one resource unit number Nru, and each column corresponds to one MCS index value, and the specific expression form of the TBS table is not limited in the embodiments of the present disclosure. For example, the TBS table may be as shown in table 2:
TABLE 2
| Index value | Nru＝1 | Nru＝2 | … | Nru＝m |
| MCS0 | TBS 01 | TBS 02 | … | TBS 0m |
| MCS1 | TBS 11 | TBS 12 | … | TBS 1m |
| … | … | … | … | … |
| MCSn | TBS n1 | TBS n2 | … | TBS nm |
305. And the base station determines the at least one spectrum efficiency Eff _ ru _ m corresponding to the index value of the MCS from the target mapping relation.
The index value of the MCS is obtained by the base station based on the channel quality of the ue, and different vendors may have different algorithms for obtaining the index value of the MCS.
The steps 304 to 305 are a manner for the base station to determine at least one spectrum efficiency Eff _ ru _ m corresponding to the index value of the MCS from the target mapping relationship according to the index value of the MCS, and in fact, the step 305 may also be implemented by one to three alternative manners, for example:
the first method is as follows: the base station accesses a first target spectrum efficiency table stored in advance according to the target mapping relation, wherein the first target spectrum efficiency table is used for indicating the target mapping relation; and acquiring the at least one spectrum efficiency Eff _ ru _ m corresponding to the MCS index value in the first target spectrum efficiency table according to the MCS index value.
The second method comprises the following steps: the base station accesses a pre-stored target TBS table according to the MCS, and the target TBS table corresponds to the target mapping relation; calculating the spectral efficiency of each TBS according to the target TBS table, wherein each spectral efficiency is a value obtained by dividing each TBS by the number of resource units corresponding to the TBS, that is, eff _ ru _ m = TBSnm/Nru (m); generating a second target spectral efficiency table according to the spectral efficiency of each TBS; and acquiring the at least one spectrum efficiency Eff _ ru _ m corresponding to the MCS index value in the second target spectrum efficiency table according to the MCS index value.
The third method comprises the following steps: the base station accesses a pre-stored target TBS table according to the MCS, and the target TBS table corresponds to the target mapping relation; according to the MCS index value, a plurality of TBSs corresponding to the MCS index value are obtained in the target TBS table; calculating the spectral efficiency of each TBS in the TBSs according to the TBSs to obtain at least one spectral efficiency Eff _ ru _ m; wherein, each spectral efficiency is a value obtained by dividing each TBS by the number of resource units corresponding to the TBS, that is, eff _ ru _ m = TBSnm/Nru (m).
306. The base station orders the at least one spectral efficiency Eff _ ru _ m from large to small, and determines the maximum value of the at least one spectral efficiency as the target spectral efficiency.
The step 306 is a process of determining the target spectral efficiency in the at least one spectral efficiency Eff _ ru _ m by the base station, and in a possible embodiment, the step 306 can be implemented by: accessing each spectral efficiency of the at least one spectral efficiency Eff _ ru _ m, when the currently accessed spectral efficiency is larger than the last spectral efficiency, assigning the maximum value as the currently accessed spectral efficiency until all spectral efficiencies of the at least one spectral efficiency Eff _ ru _ m are visited in a traversal mode, obtaining the maximum value of the at least one spectral efficiency Eff _ ru _ m, and determining the maximum value as the target spectral efficiency.
307. And the base station acquires the number of the resource units corresponding to the target spectrum efficiency from the target mapping relation.
Since each spectrum efficiency has a corresponding resource unit number and MCS index value in the target mapping relationship, the resource unit number corresponding to the target spectrum efficiency can be determined based on the target spectrum efficiency. Wherein the resource unit is used to indicate the minimum resource unit in the communication mode, for example, the resource unit may be used to indicate the resource on every 12 subcarriers in the frequency domain on every 7 waveform symbols in the time domain. The number of resource units is the number of resource units allocated by the base station to the user equipment when the target spectrum efficiency is reached.
It can be known from the above steps that the target spectrum efficiency is the highest in the spectrum efficiencies corresponding to the index values of the MCS, and the resource units determined by this process can make the user equipment reach the peak rate in data transmission, thereby improving the utilization rate of discrete frequency points.
308. And the base station acquires the carrier number Nru/1 when the frame number of the resource unit number corresponding to the target spectrum efficiency is 1 frame.
In step 308, the base station obtains all resource units indicated by the number of resource units, and the number of carriers that can be allocated to the user equipment when the number of frames in the time domain is 1 frame.
309. And the base station acquires the minimum value of the carrier number and the available carrier number N _ available, and takes the minimum value as the target carrier number.
By comparing the number of carriers acquired in step 308 with the number of available carriers of the base station, the situation that the number of carriers exceeds the number of available carriers can be avoided, for example, when the number of carriers acquired in step 308 is less than the number of available carriers, the number of acquired carriers is used as the target number of carriers, and when the number of acquired carriers is greater than the number of available carriers, the number of available carriers is used as the target number of carriers, so that allocation can be realized while spectrum efficiency can be maximized. The above target carrier number may be obtained by the following expression: n _ u (i) = min (N _ available, nru/1).
310. And the base station allocates resources for data transmission to the user equipment according to the target carrier number.
After the base station determines the number of target carriers to be allocated, the base station may allocate carriers corresponding to the number of target carriers to the ue for data transmission, for example, the base station may send resource allocation information to the ue, where the resource allocation information carries time-frequency resource information including information of the carriers corresponding to the number of target carriers, and when the ue receives the resource allocation information, the base station may analyze the resource allocation information, obtain the time-frequency resource information, and send uplink data or receive downlink data based on the time-frequency resource information.
The data transmission method provided by the embodiment of the disclosure determines a modulation and coding scheme MCS for the user equipment according to the channel quality of the user equipment, and then obtains the number of resource units corresponding to the target spectrum efficiency based on the target mapping relation according to the index value of the MCS, and obtains the number of target carriers based on the number of the resource units, so as to allocate resources according to the number of the target carriers, so that the baseband signal of the base station is converted into a modulation signal suitable for channel transmission through the MCS, thereby obtaining the number of the target carriers with the maximum spectrum efficiency, improving the utilization rate of discrete frequency points in the coverage range of the base station, and improving the peak rate of the coverage range of the base station. Furthermore, a target mapping relation is determined through the MCS, at least one spectrum efficiency corresponding to the index value of the MCS is obtained based on a preset spectrum efficiency table corresponding to the target mapping relation, the maximum value of the at least one spectrum efficiency is obtained as the target spectrum efficiency, and the cost for obtaining the target spectrum efficiency is saved; further, when the available user equipment in the coverage area of the base station is not 0, the current available carrier number is acquired, when the available carrier number is 0, resources are not allocated to the user equipment, and when the available carrier number is not 0, the minimum value of the available carrier number and the carrier number corresponding to the target spectrum efficiency is acquired as the target carrier number, so that the target carrier number allocated to the user equipment is within the available carrier number range of the base station, the maximum spectrum efficiency is achieved, and the data transmission mechanism of the base station is further improved.
Fig. 4 is a schematic structural diagram of a data transmission device provided in the present disclosure according to an exemplary embodiment, where the device includes: a determination module 401, a first acquisition module 402, a second acquisition module 403, and an assignment module 404.
A determining module 401, configured to determine an MCS of a user equipment according to a channel quality of the user equipment;
a first obtaining module 402, configured to obtain, according to the index value of the MCS, a resource unit number corresponding to a target spectrum efficiency from a target mapping relationship, where the target spectrum efficiency is the highest in spectrum efficiencies corresponding to the index value of the MCS, and the target mapping relationship is used to indicate a relationship among the index value, the resource unit number, and the spectrum efficiency;
a second obtaining module 403, configured to obtain a target carrier number according to the number of resource units corresponding to the target spectrum efficiency;
an allocating module 404, configured to allocate resources for data transmission to the ue according to the target number of carriers.
The data transmission device provided by the embodiment of the disclosure determines a modulation and coding scheme MCS through the channel quality of user equipment, and then obtains the number of resource units corresponding to a target spectrum efficiency based on a target mapping relation according to an index value of the MCS, and obtains the number of target carriers based on the number of the resource units, so that resources are allocated according to the number of the target carriers, and a baseband signal of a base station is converted into a modulation signal suitable for channel transmission through the MCS, thereby obtaining the number of the target carriers with the maximum spectrum efficiency, improving the utilization rate of discrete frequency points in the coverage range of the base station, and improving the peak rate of the coverage range of the base station.
Optionally, based on the apparatus composition of fig. 4, the first obtaining module 402 includes:
a first determining unit, configured to determine, according to the index value of the MCS, at least one spectrum efficiency corresponding to the index value of the MCS from the target mapping relationship;
a second determining unit, configured to determine the target spectral efficiency from the at least one spectral efficiency;
and the obtaining unit is used for obtaining the number of the resource units corresponding to the target spectrum efficiency from the target mapping relation.
Optionally, the first determining unit is configured to perform the above steps 304 to 305 and an alternative manner of the steps 304 to 305.
Optionally, the second determining unit is configured to perform the step 306 and an optional implementation of the step 306.
Optionally, the target mapping relationship is preset; alternatively, the target mapping relationship is generated based on the relationship between the index value, the number of resource units and the TBS, see step 304.
Optionally, based on the apparatus composition of fig. 4, the apparatus further comprises:
a third obtaining module, configured to perform optional implementation of step 301 and step 301;
a fourth obtaining module, configured to perform the foregoing step 302 and optional implementation of the step 302.
Optionally, based on the apparatus composition of fig. 4, the second obtaining module 403 is configured to perform the steps 308 to 309.
All the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present disclosure, and are not described in detail herein.
It should be noted that: in the data transmission device provided in the above embodiment, only the division of the functional modules is illustrated when data transmission is performed, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the data transmission device and the data transmission method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
The term "plurality" in the present disclosure means two or more, for example, a plurality of mapping relations means two or more mapping relations.
The terms "first," "second," and the like in this disclosure are used for distinguishing between similar items and items that have substantially the same function or similar items, and those skilled in the art will understand that the terms "first," "second," and the like do not denote any order or quantity or order of execution.
The above description is only an alternative embodiment of the present disclosure, and not intended to limit the present disclosure, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered by the protection scope of the present disclosure.
Claims (16)
1. A method of data transmission, the method comprising:
determining the MCS of the user equipment according to the channel quality of the user equipment;
determining a target mapping relation corresponding to the MCS from a plurality of mapping relations according to the MCS, wherein each MCS corresponds to one mapping relation, and each mapping relation is used for indicating a relation among an index value, the number of resource units and the spectrum efficiency;
acquiring the number of resource units corresponding to target spectrum efficiency from the target mapping relation according to the index value of the MCS, wherein the target spectrum efficiency has the highest efficiency in the spectrum efficiencies corresponding to the index value of the MCS;
acquiring the number of target carriers according to the number of resource units corresponding to the target spectrum efficiency;
and allocating resources for data transmission to the user equipment according to the target carrier number.
2. The method of claim 1, wherein the obtaining the number of resource elements corresponding to the target spectrum efficiency from the target mapping relationship according to the index value of the MCS comprises:
determining at least one spectrum efficiency corresponding to the index value of the MCS from the target mapping relation according to the index value of the MCS;
determining the target spectral efficiency among the at least one spectral efficiency;
and acquiring the number of resource units corresponding to the target spectrum efficiency from the target mapping relation.
3. The method of claim 2, wherein the determining at least one spectral efficiency corresponding to the index value of the MCS from the target mapping relationship according to the index value of the MCS comprises:
determining the target mapping relation from a plurality of mapping relations according to the MCS, wherein the target mapping relation corresponds to the MCS;
and determining the at least one spectrum efficiency corresponding to the index value of the MCS from the target mapping relation.
4. The method of claim 2, wherein the determining the target spectral efficiency among the at least one spectral efficiency comprises:
and sequencing the at least one spectrum efficiency from large to small, and determining the maximum value of the at least one spectrum efficiency as the target spectrum efficiency.
5. The method of claim 1, wherein the target mapping relationship is preset; or the like, or, alternatively,
the target mapping relation is generated based on a relation among an index value, the number of resource units and the TBS.
6. The method of claim 1, wherein before determining the MCS for the user equipment based on the channel quality of the user equipment, the method further comprises:
acquiring the user equipment from a user equipment queue of data to be transmitted, wherein the number of the user equipment in the user equipment queue is more than or equal to 1;
acquiring the current available carrier number, wherein the available carrier number is the idle carrier number which can be currently provided in a cell;
when the number of the available carriers is 0, allocating no resource for data transmission to the user equipment;
and when the number of the available carriers is not 0, executing the step of determining the MCS of the user equipment according to the channel quality of the user equipment.
7. The method of claim 6, wherein the obtaining a target number of carriers according to the number of resource units corresponding to the target spectral efficiency comprises:
acquiring the carrier number of the resource unit number corresponding to the target spectrum efficiency when the frame number is 1 frame;
and acquiring the minimum value of the carrier number and the available carrier number, and taking the minimum value as the target carrier number.
8. A data transmission apparatus, characterized in that the apparatus comprises:
a determining module, configured to determine an MCS of a user equipment according to a channel quality of the user equipment; determining a target mapping relation corresponding to the MCS from a plurality of mapping relations according to the MCS, wherein each MCS corresponds to one mapping relation, and each mapping relation is used for indicating a relation among an index value, the number of resource units and the spectrum efficiency;
a first obtaining module, configured to obtain, according to the index value of the MCS, a number of resource units corresponding to a target spectrum efficiency from the target mapping relationship, where the target spectrum efficiency has a highest efficiency among spectrum efficiencies corresponding to the index value of the MCS;
a second obtaining module, configured to obtain a target carrier number according to the number of resource units corresponding to the target spectrum efficiency;
and the allocation module is used for allocating resources for data transmission to the user equipment according to the target carrier number.
9. The apparatus of claim 8, wherein the first obtaining module comprises:
a first determining unit, configured to determine, according to the index value of the MCS, at least one spectrum efficiency corresponding to the index value of the MCS from the target mapping relationship;
a second determining unit, configured to determine the target spectral efficiency from the at least one spectral efficiency;
and the obtaining unit is used for obtaining the number of the resource units corresponding to the target spectrum efficiency from the target mapping relation.
10. The apparatus of claim 9, wherein the first determining unit is configured to:
determining the target mapping relation from a plurality of mapping relations according to the MCS, wherein the target mapping relation corresponds to the MCS;
and determining the at least one spectrum efficiency corresponding to the index value of the MCS from the target mapping relation.
11. The apparatus of claim 9, wherein the second determining unit is configured to:
and sequencing the at least one spectrum efficiency from large to small, and determining the maximum value of the at least one spectrum efficiency as the target spectrum efficiency.
12. The apparatus of claim 8, wherein the target mapping relationship is preset; or the like, or, alternatively,
the target mapping relationship is generated based on a relationship between an index value, a number of resource units, and a TBS.
13. The apparatus of claim 8, further comprising:
a third obtaining module, configured to obtain the ue from a ue queue of data to be transmitted, where a number of ues in the ue queue is greater than or equal to 1;
a fourth obtaining module, configured to obtain the current number of available carriers, where the number of available carriers is the number of idle carriers that can be currently provided in a cell;
when the number of the available carriers is 0, allocating no resource for data transmission to the user equipment;
and when the number of the available carriers is not 0, executing the step of determining the MCS of the user equipment according to the channel quality of the user equipment.
14. The apparatus of claim 13, wherein the second obtaining module is configured to:
acquiring the carrier number of the resource unit number corresponding to the target spectrum efficiency when the frame number is 1 frame;
and acquiring the minimum value of the carrier number and the available carrier number, and taking the minimum value as the target carrier number.
15. A network device comprising a transceiver, a processor, and a memory, wherein at least one instruction is stored in the memory, and wherein the instruction is loaded and executed by the processor to perform operations performed by the data transmission method of any one of claims 1 to 7.
16. A computer-readable storage medium having stored therein at least one instruction which is loaded and executed by a processor to perform operations performed by a data transmission method according to any one of claims 1 to 7.
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| CN1930801A (en) * | 2004-03-12 | 2007-03-14 | 三星电子株式会社 | Method and apparatus for transmitting/receiver channel quality information in a communication system using an orthogonal frequency division multiplexing |
| CN101595749A (en) * | 2007-01-30 | 2009-12-02 | Lg电子株式会社 | In wireless communication system, select the method and the implement device thereof of modulation and encoding scheme (MCS) index |
| CN102170647A (en) * | 2010-02-26 | 2011-08-31 | 电信科学技术研究院 | Device and method for judging uplink data channel resource multiplexing type |
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| CN103281168B (en) * | 2008-10-28 | 2016-06-29 | 富士通株式会社 | Wireless communication system and method, radio communication terminal device and radio base station apparatus |
| CN105991273B (en) * | 2015-02-13 | 2020-08-21 | 南京中兴软件有限责任公司 | Method and device for distributing data to be scheduled |
| CN106817206B (en) * | 2015-11-27 | 2020-04-24 | 北京信威通信技术股份有限公司 | Interference avoidance method and system for multi-hop network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1930801A (en) * | 2004-03-12 | 2007-03-14 | 三星电子株式会社 | Method and apparatus for transmitting/receiver channel quality information in a communication system using an orthogonal frequency division multiplexing |
| CN101595749A (en) * | 2007-01-30 | 2009-12-02 | Lg电子株式会社 | In wireless communication system, select the method and the implement device thereof of modulation and encoding scheme (MCS) index |
| CN102170647A (en) * | 2010-02-26 | 2011-08-31 | 电信科学技术研究院 | Device and method for judging uplink data channel resource multiplexing type |
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