CN112532345B - Link self-adaption method and device based on user data type requirements - Google Patents
Link self-adaption method and device based on user data type requirements Download PDFInfo
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- CN112532345B CN112532345B CN202011212034.9A CN202011212034A CN112532345B CN 112532345 B CN112532345 B CN 112532345B CN 202011212034 A CN202011212034 A CN 202011212034A CN 112532345 B CN112532345 B CN 112532345B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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Abstract
The embodiment of the application discloses a link self-adaption method and device based on user data type requirements. According to the technical scheme provided by the embodiment of the application, the transmission parameters of different data types under the current channel quality parameters are determined and recorded according to the channel quality parameters and the transmission quality requirements of the user terminal on the different data types, when data are required to be sent to the user terminal, the target data types of the data are sent according to the requirements, the target transmission parameters corresponding to the target data types are determined according to the parameter corresponding relation between the data types and the transmission parameters, data transmission is carried out based on the target transmission parameters, appropriate target transmission parameters can be configured according to the different data types, and the flexibility of link self-adaptation is effectively improved.
Description
Technical Field
The embodiment of the application relates to the technical field of link adaptation, in particular to a link adaptation method and device based on user data type requirements.
Background
The physical layer of the internet of things supports a link adaptation technology, and in order to optimize system capacity and coverage at a certain transmission power, a transmitter should match a data transmission rate and received signal quality, the optimization is called link adaptation, that is, channel variation requires adaptive adjustment of transmission parameters.
Generally, the link adaptation is performed directly according to the channel environment, and the flexibility of the link adaptation is poor.
Disclosure of Invention
The embodiment of the application provides a link self-adaption method and device based on user data type requirements, so that the flexibility of link self-adaption is improved.
In a first aspect, an embodiment of the present application provides a link adaptation method based on user data type requirements, including:
determining channel quality parameters of a communication channel, and acquiring transmission quality requirements of a user terminal on different data types;
determining transmission parameters corresponding to each data type by the user terminal according to the channel quality parameters and the transmission quality requirements, and recording the parameter corresponding relation between each data type and the transmission parameters, wherein the transmission parameters comprise one or more of a modulation mode, a coding mode, redundant information, transmitting power and time-frequency resources, and when the data of the corresponding data type is transmitted by the corresponding transmission parameters, the data transmission effect meets the transmission quality requirements;
and determining a target data type of data needing to be sent to the user terminal, if the target data type is consistent with the last target data type, maintaining the current target transmission parameter, and otherwise, determining the target transmission parameter corresponding to the target data type according to the parameter corresponding relation.
Further, the channel quality parameter includes one or more of a reference signal received power, a signal to interference and noise ratio, and a reference signal received quality.
Further, the determining, according to the channel quality parameter and the transmission quality requirement, a transmission parameter corresponding to each data type by the user terminal includes:
and determining the transmission parameters corresponding to the data types by the user terminal based on the channel quality parameters, the transmission quality requirements and the preset mapping relation among the transmission parameters.
Further, after the recording of the parameter corresponding relationship between each data type and the transmission parameter, the method further includes:
and in response to the fact that the variation amplitude of the channel quality parameter reaches a preset amplitude, re-determining the transmission parameters corresponding to the data types by the user terminal.
Further, the determining a target data type of data to be sent to the user terminal, if the target data type is consistent with a last target data type, maintaining a current target transmission parameter, otherwise determining a target transmission parameter corresponding to the target data type according to the parameter correspondence relationship includes:
determining a target data type of data needing to be sent to a user terminal, and judging whether the target data type is consistent with the target data type of the last data sending;
if so, maintaining the target transmission parameter when the data is sent last time as the current target transmission parameter;
otherwise, determining the target transmission parameters corresponding to the current target data type based on the parameter corresponding relation.
Further, the acquiring the transmission quality requirements of the user terminal for different data types includes:
determining transmission quality requirements of the user terminal for different data types based on the success of the transmission quality requirements;
and determining the transmission quality requirements of the user terminal for different data types according to the set requirement acquisition strategy based on the transmission quality requirement acquisition failure.
Further, the setting requirement obtaining strategy is used for determining transmission quality requirements of different data types, including determining according to the previous transmission quality requirements of the user terminal and determining according to the transmission quality requirements of terminals of the same type.
In a second aspect, an embodiment of the present application provides a link adaptation device based on user data type requirements, including a quality detection module, a parameter recording module, and a parameter determination module, where:
the quality detection module is used for determining the channel quality parameters of the communication channel and acquiring the transmission quality requirements of the user terminal on different data types;
a parameter recording module, configured to determine, according to the channel quality parameter and the transmission quality requirement, a transmission parameter corresponding to each data type by a user terminal, and record a parameter correspondence between each data type and the transmission parameter, where the transmission parameter includes a modulation mode, a coding mode, redundant information, transmission power, and time-frequency resources, and when data of a corresponding data type is transmitted by using a corresponding transmission parameter, a data transmission effect meets the transmission quality requirement;
and the parameter determining module is used for determining a target data type of data needing to be sent to the user terminal, if the target data type is consistent with the last target data type, maintaining the current target transmission parameter, and otherwise, determining the target transmission parameter corresponding to the target data type according to the parameter corresponding relation.
Further, the channel quality parameter includes one or more of a reference signal received power, a signal to interference and noise ratio, and a reference signal received quality.
Further, when determining the transmission parameters corresponding to each data type by the user terminal according to the channel quality parameters and the transmission quality requirements, the parameter recording module specifically includes:
and determining the transmission parameters corresponding to the data types by the user terminal based on the channel quality parameters, the transmission quality requirements and the preset mapping relation among the transmission parameters.
Further, the apparatus further includes a parameter updating module, configured to re-determine transmission parameters corresponding to each data type for the user terminal in response to that a variation amplitude of the channel quality parameter reaches a preset amplitude.
Further, the parameter determining module is specifically configured to:
determining a target data type of data needing to be sent to a user terminal, and judging whether the target data type is consistent with the target data type of the last data sending;
if so, maintaining the target transmission parameter when the data is sent last time as the current target transmission parameter;
otherwise, determining the target transmission parameters corresponding to the current target data type based on the parameter corresponding relation.
Further, when the quality detection module obtains the transmission quality requirements of the user terminal for different data types, the quality detection module specifically includes:
determining transmission quality requirements of the user terminal for different data types based on the success of the transmission quality requirements;
and determining the transmission quality requirements of the user terminal for different data types according to the set requirement acquisition strategy based on the transmission quality requirement acquisition failure.
Further, the setting requirement obtaining strategy is used for determining transmission quality requirements of different data types, including determining according to the previous transmission quality requirements of the user terminal and determining according to the transmission quality requirements of terminals of the same type.
In a third aspect, an embodiment of the present application provides a computer device, including: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of link adaptation based on user data type requirements as described in the first aspect.
In a fourth aspect, embodiments of the present application provide a storage medium containing computer-executable instructions for performing the link adaptation method based on user data type requirements as described in the first aspect when executed by a computer processor.
According to the embodiment of the application, the transmission parameters of different data types under the current channel quality parameters are determined and recorded according to the channel quality parameters and the transmission quality requirements of the user terminal on different data types, when data are required to be sent to the user terminal, the target data types of the data are sent according to the requirement, the target transmission parameters corresponding to the target data types are determined according to the parameter corresponding relation between the data types and the transmission parameters, data transmission is carried out based on the target transmission parameters, appropriate target transmission parameters can be configured according to different data types, and the flexibility of link self-adaptation is effectively improved.
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Fig. 1 is a flowchart of a link adaptation method based on user data type requirements according to an embodiment of the present application;
fig. 2 is a flowchart of another link adaptation method based on user data type requirements according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a link adaptation apparatus based on user data type requirements according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Fig. 1 is a flowchart illustrating a link adaptation method based on user data type requirements according to an embodiment of the present disclosure, where the link adaptation method based on user data type requirements according to the embodiment of the present disclosure may be performed by a link adaptation device based on user data type requirements (e.g., an internet of things gateway, a base station, etc.), and the link adaptation device based on user data type requirements may be implemented by hardware and/or software and integrated in a computer device.
The following description will be given taking as an example a link adaptation method in which a link adaptation apparatus based on user data type requirements performs link adaptation based on user data type requirements. Referring to fig. 1, the link adaptation method based on the user data type requirement includes:
s101: and determining the channel quality parameters of the communication channel, and acquiring the transmission quality requirements of the user terminal on different data types.
The channel Quality parameter includes one or more of Reference Signal Received Power (RSRP), Signal to Interference and Noise Ratio (SINR), Reference Signal Receiving Quality (RSRQ), Rank Indication (RI), channel Quality, and channel matrix feedback. The channel quality parameters are obtained by the user terminal based on the channel quality measurement, and are uploaded by the user terminal.
Illustratively, the channel quality parameters reported by each user terminal are received, and the channel quality parameters of each communication channel are determined. When a plurality of channel quality parameters are received on the same communication channel, the latest channel quality parameter or the average value of the plurality of channel quality parameters may be used as the basis.
Further, the user terminal determines the transmission quality requirements for different data types according to the transmission quality requirements for different data types, and sends the transmission quality requirements to the link adaptive device. Wherein the transmission quality requirement may be one or more of a combination of Block Error Rate (BLER, Block Error Rate), throughput, Burst Error (Burst Error).
S102: and determining the transmission parameters corresponding to each data type by the user terminal according to the channel quality parameters and the transmission quality requirements, and recording the parameter corresponding relation between each data type and the transmission parameters.
The transmission parameters provided in this embodiment include one or a combination of multiple types of modulation methods, coding methods, redundant information, transmission power, and time-frequency resources, and when data of a corresponding data type is transmitted by using corresponding transmission parameters, the data transmission effect meets the transmission quality requirement.
For example, after determining the channel quality parameters of the current communication channels and the transmission quality requirements of the user terminal for different data types, different transmission parameters used when the user terminal transmits data of different data types are determined, and the transmission parameters used when the user terminal transmits data of different data types are recorded to form a parameter correspondence relationship.
The determination of the transmission parameter corresponding to each data type may be to perform data transmission on each communication channel in advance according to a combination of different transmission parameters in a channel environment with different channel quality parameters, determine data transmission quality corresponding to the combination of the different channel quality parameters and the transmission parameters, record a correspondence among the channel quality parameters, the transmission parameters, and the data transmission quality, and determine, based on the correspondence, the transmission parameter of each data type that meets the transmission quality requirement under the current channel quality parameter after determining the channel quality parameter and the transmission quality requirement.
In other embodiments, the determination of the transmission parameter corresponding to each data type may be further based on an existing adaptive algorithm and calculated according to the current channel quality parameter, so as to obtain the transmission parameter meeting the transmission quality requirement.
S103: and determining a target data type of data needing to be sent to the user terminal, if the target data type is consistent with the last target data type, maintaining the current target transmission parameter, and otherwise, determining the target transmission parameter corresponding to the target data type according to the parameter corresponding relation.
Illustratively, when data needs to be sent to the user terminal, a target data type of the data needing to be sent is determined, the target data type is compared with a target data type corresponding to the last time of sending the data to the user terminal, if the current target data type is consistent with the last target data type, the current target transmission parameter (namely the target transmission parameter used when the data is sent to the user terminal last time) is maintained, otherwise, the target transmission parameter corresponding to the current target data type is determined according to the corresponding relation of the parameters, and the data transmission is carried out based on the target transmission parameter.
According to the method, the transmission parameters of different data types under the current channel quality parameters are determined and recorded according to the channel quality parameters and the transmission quality requirements of the user terminal on different data types, when data are required to be sent to the user terminal, the target data types of the data are sent according to the requirements, the target transmission parameters corresponding to the target data types are determined according to the parameter corresponding relation between the data types and the transmission parameters, data transmission is carried out based on the target transmission parameters, appropriate target transmission parameters can be configured according to different data types, and the flexibility of link self-adaptation is effectively improved.
On the basis of the foregoing embodiments, fig. 2 is a flowchart of another link adaptation method based on user data type requirements provided in an embodiment of the present application, where the link adaptation method based on user data type requirements is a concrete example of the link adaptation method based on user data type requirements. Referring to fig. 2, the link adaptation method based on the user data type requirement includes:
s201: a channel quality parameter for the communication channel is determined.
S202: and judging whether the transmission quality requirements of the user terminal on different data types are successfully acquired. If so, go to step S203, otherwise, go to step S204.
When the user terminal accesses the link adaptive device, the user terminal uploads the transmission quality requirements for different data types to the link adaptive device. Specifically, when the transmission quality request is received and successfully analyzed, the process goes to step S203, and when the transmission quality request is not successfully received within the set time or the analysis of the transmission quality request fails, the process goes to step S204.
S203: and directly determining the transmission quality requirements of the user terminal on different data types.
Based on the success of the transmission quality requirement acquisition, the transmission quality requirements of the user terminal for different data types can be directly determined, and the process goes to step S205.
S204: and determining the transmission quality requirements of the user terminal for different data types according to the set requirement acquisition strategy.
And determining the transmission quality requirements of the user terminal for different data types based on the set requirement acquisition strategy based on the transmission quality requirement acquisition failure. The method for determining the transmission quality requirement comprises two modes of determining according to the previous transmission quality requirement of the user terminal and determining according to the transmission quality requirement of the terminals of the same type.
For the set requirement obtaining strategy determined according to the previous transmission quality requirement of the user terminal, the transmission quality requirement uploaded when the user terminal accesses last time can be recorded, and when the transmission quality requirement obtaining fails, the last transmission quality requirement is used according to the cache record of the user terminal.
For the set requirement obtaining strategy determined according to the transmission quality requirements of the terminals of the same type, the transmission quality requirements can be determined to be consistent with the transmission quality requirements uploaded by the user terminals of the same type or the same area of the current user terminals.
S205: and determining the transmission parameters corresponding to the data types by the user terminal based on the channel quality parameters, the transmission quality requirements and the preset mapping relation among the transmission parameters.
Specifically, different types of test data are sent to the user terminal in advance for each communication channel in a channel environment with different channel quality parameters according to different combinations of transmission parameters, data transmission quality under different combinations of channel quality parameters, transmission parameters and data types is tested, and the corresponding relation among the channel quality parameters, the transmission parameters, the data types and the data transmission quality is recorded to form a preset mapping relation among the channel quality parameters, the transmission quality requirements and the transmission parameters.
Further, after determining the channel quality parameter and the transmission quality requirement, determining the transmission parameter of each data type meeting the transmission quality requirement corresponding to the data transmission quality in the channel environment of the current channel quality parameter according to the preset mapping relation.
The transmission parameters comprise one or more of a modulation mode, a coding mode, redundant information, transmitting power and time-frequency resources, and when the data of the corresponding data type is transmitted by the transmission parameters determined according to the preset mapping relation, the data transmission effect meets the transmission quality requirement.
S206: and recording the parameter corresponding relation between each data type and the transmission parameter.
Specifically, after determining the transmission parameters corresponding to each data type of the user terminal, the parameter correspondence between each data type and the transmission parameters is recorded.
S207: and in response to the fact that the variation amplitude of the channel quality parameter reaches a preset amplitude, re-determining the transmission parameters corresponding to the data types by the user terminal.
Specifically, the channel quality parameters fed back by each user terminal are received in real time, the variation amplitude of the channel quality parameters of each communication channel is calculated, when the variation amplitude of the channel quality parameters reaches a preset amplitude, the transmission parameters corresponding to each data type by the user terminal are determined based on the preset mapping relationship again, and the provided parameter corresponding relationship is updated.
S208: and determining a target data type of data needing to be sent to the user terminal, and judging whether the target data type is consistent with the target data type in the last data sending. If so, go to step S209, otherwise, go to step S210.
Specifically, when data needs to be sent to the user terminal, a target data type of the data needs to be sent is determined, and it is determined whether the target data type is consistent with a target data type of the data sent to the user terminal last time, if so, the step S209 is skipped, otherwise, the step S210 is skipped.
S209: and maintaining the target transmission parameter when the data is transmitted last time as the current target transmission parameter.
Specifically, when the current target data type is consistent with the last data type, the target transmission parameter of the last data transmission is maintained as the current target transmission parameter, and the data is transmitted to the user terminal based on the target transmission parameter.
S210: and determining the target transmission parameters corresponding to the current target data type based on the parameter corresponding relation.
Specifically, when the current target data type is inconsistent with the last data type, the transmission parameter corresponding to the target data type is determined according to the parameter correspondence, the transmission parameter is determined as the target transmission parameter, and data is sent to the user terminal based on the target transmission parameter.
According to the method, the transmission parameters of different data types under the current channel quality parameters are determined and recorded according to the channel quality parameters and the transmission quality requirements of the user terminal on different data types, when data are required to be sent to the user terminal, the target data types of the data are sent according to the requirements, the target transmission parameters corresponding to the target data types are determined according to the parameter corresponding relation between the data types and the transmission parameters, data transmission is carried out based on the target transmission parameters, appropriate target transmission parameters can be configured according to different data types, and the flexibility of link self-adaptation is effectively improved. Meanwhile, the transmission parameters corresponding to each communication channel are updated according to the variation amplitude of the channel quality parameters and the corresponding relation of the parameters, the transmission quality requirements of the user terminal are flexibly obtained, and the flexibility of link adaptation is further improved.
Fig. 3 is a schematic structural diagram of a link adaptation apparatus based on user data type requirements according to an embodiment of the present application. Referring to fig. 3, the link adaptation apparatus based on the user data type requirement includes a quality detection module 31, a parameter recording module 32, and a parameter determination module 33.
The quality detection module 31 is configured to determine a channel quality parameter of a communication channel, and obtain transmission quality requirements of a user terminal for different data types; a parameter recording module 32, configured to determine, according to the channel quality parameter and the transmission quality requirement, a transmission parameter corresponding to each data type by the user terminal, and record a parameter correspondence between each data type and the transmission parameter, where the transmission parameter includes a modulation mode, a coding mode, redundant information, transmission power, and time-frequency resources, and when data of a corresponding data type is transmitted by using a corresponding transmission parameter, a data transmission effect meets the transmission quality requirement; and a parameter determining module 33, configured to determine a target data type of data to be sent to the user terminal, maintain a current target transmission parameter if the target data type is consistent with a previous target data type, and otherwise determine a target transmission parameter corresponding to the target data type according to the parameter correspondence.
According to the method, the transmission parameters of different data types under the current channel quality parameters are determined and recorded according to the channel quality parameters and the transmission quality requirements of the user terminal on different data types, when data are required to be sent to the user terminal, the target data types of the data are sent according to the requirements, the target transmission parameters corresponding to the target data types are determined according to the parameter corresponding relation between the data types and the transmission parameters, data transmission is carried out based on the target transmission parameters, appropriate target transmission parameters can be configured according to different data types, and the flexibility of link self-adaptation is effectively improved.
In one possible embodiment, the channel quality parameter includes one or more of a reference signal received power, a signal to interference and noise ratio, and a reference signal received quality.
In a possible embodiment, when determining the transmission parameters corresponding to each data type by the user terminal according to the channel quality parameters and the transmission quality requirements, the parameter recording module 32 specifically includes:
and determining the transmission parameters corresponding to the data types by the user terminal based on the channel quality parameters, the transmission quality requirements and the preset mapping relation among the transmission parameters.
In a possible embodiment, the apparatus further includes a parameter updating module, configured to re-determine the transmission parameters corresponding to each data type for the user terminal in response to a variation amplitude of the channel quality parameter reaching a preset amplitude.
In a possible embodiment, the parameter determining module 33 is specifically configured to:
determining a target data type of data needing to be sent to a user terminal, and judging whether the target data type is consistent with the target data type of the last data sending;
if so, maintaining the target transmission parameter when the data is sent last time as the current target transmission parameter;
otherwise, determining the target transmission parameters corresponding to the current target data type based on the parameter corresponding relation.
In a possible embodiment, when acquiring the transmission quality requirements of the user terminal for different data types, the quality detection module 31 specifically includes:
determining transmission quality requirements of the user terminal for different data types based on the success of the transmission quality requirements;
and determining the transmission quality requirements of the user terminal for different data types according to the set requirement acquisition strategy based on the transmission quality requirement acquisition failure.
In a possible embodiment, the set requirement obtaining policy is used for determining transmission quality requirements of different data types, including determining according to previous transmission quality requirements of the user terminal and determining according to transmission quality requirements of terminals of the same type.
The embodiment of the application also provides a computer device, and the computer device can integrate the link self-adaption device based on the user data type requirement provided by the embodiment of the application. Fig. 4 is a schematic structural diagram of a computer device according to an embodiment of the present application. Referring to fig. 4, the computer apparatus includes: an input device 43, an output device 44, a memory 42, and one or more processors 41; the memory 42 for storing one or more programs; when executed by the one or more processors 41, cause the one or more processors 41 to implement the link adaptation method based on user data type requirements as provided in the embodiments above. Wherein the input device 43, the output device 44, the memory 42 and the processor 41 may be connected by a bus or other means, for example, in fig. 4.
The memory 42 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the link adaptation method based on user data type requirements (e.g., the quality detection module 31, the parameter recording module 32, and the parameter determination module 33 in the link adaptation device based on user data type requirements) according to any embodiment of the present application. The memory 42 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory 42 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 42 may further include memory located remotely from processor 41, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 43 may be used to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 44 may include a display device such as a display screen.
The processor 41 executes various functional applications of the device and data processing by executing software programs, instructions and modules stored in the memory 42, namely, implements the above-described link adaptation method based on the user data type requirements.
The link adaptation device, the equipment and the computer based on the user data type requirement provided by the above can be used for executing the link adaptation method based on the user data type requirement provided by any of the above embodiments, and have corresponding functions and beneficial effects.
Embodiments of the present application further provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the link adaptation method based on user data type requirements provided in the foregoing embodiments, where the link adaptation method based on user data type requirements includes: determining channel quality parameters of a communication channel, and acquiring transmission quality requirements of a user terminal on different data types; determining transmission parameters corresponding to each data type by the user terminal according to the channel quality parameters and the transmission quality requirements, and recording the parameter corresponding relation between each data type and the transmission parameters, wherein the transmission parameters comprise one or more of a modulation mode, a coding mode, redundant information, transmitting power and time-frequency resources, and when the data of the corresponding data type is transmitted by the corresponding transmission parameters, the data transmission effect meets the transmission quality requirements; and determining a target data type of data needing to be sent to the user terminal, if the target data type is consistent with the last target data type, maintaining the current target transmission parameter, and otherwise, determining the target transmission parameter corresponding to the target data type according to the parameter corresponding relation.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium containing computer-executable instructions provided in the embodiments of the present application is not limited to the link adaptation method based on the requirement of the user data type described above, and may also perform related operations in the link adaptation method based on the requirement of the user data type provided in any embodiments of the present application.
The link adaptation device, the apparatus, and the storage medium based on the user data type requirement provided in the foregoing embodiments may perform the link adaptation method based on the user data type requirement provided in any embodiment of the present application, and refer to the link adaptation method based on the user data type requirement provided in any embodiment of the present application without detailed technical details described in the foregoing embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (5)
1. A link adaptation method based on user data type requirements, comprising:
determining channel quality parameters of a communication channel, and acquiring transmission quality requirements of a user terminal on different data types; the transmission quality requirement is one or more combination of block error rate, throughput and burst error; the acquiring of the transmission quality requirements of the user terminal on different data types comprises: determining transmission quality requirements of the user terminal for different data types based on the success of the transmission quality requirements; determining transmission quality requirements of the user terminal for different data types according to a set requirement acquisition strategy based on transmission quality requirement acquisition failure; the setting requirement obtaining strategy is used for determining transmission quality requirements of different data types, and comprises the steps of determining according to the previous transmission quality requirements of the user terminal and determining according to the transmission quality requirements of terminals of the same type; recording a transmission quality requirement uploaded when the user terminal accesses last time for a set requirement acquisition strategy determined according to the previous transmission quality requirement of the user terminal, and using the previous transmission quality requirement according to a cache record of the user terminal when the transmission quality requirement acquisition fails; determining a transmission quality requirement to be consistent with the transmission quality requirement uploaded by the user terminals of the same type or the same region of the current user terminal for a set requirement acquisition strategy determined according to the transmission quality requirement of the terminals of the same type;
sending different types of test data to a user terminal according to different combinations of transmission parameters for each communication channel in a channel environment with different channel quality parameters in advance, testing the data transmission quality under the combinations of the different channel quality parameters, the transmission parameters and the data types, and recording the corresponding relation among the channel quality parameters, the transmission parameters, the data types and the data transmission quality to form a preset mapping relation among the channel quality parameters, the transmission quality requirements and the transmission parameters; determining transmission parameters corresponding to each data type by a user terminal based on a channel quality parameter, a transmission quality requirement and a preset mapping relation among the transmission parameters, and recording the parameter corresponding relation between each data type and the transmission parameters, wherein the transmission parameters comprise one or more of a modulation mode, a coding mode, redundant information, transmission power and time-frequency resources, and when the data of the corresponding data type is transmitted by the corresponding transmission parameters, the data transmission effect meets the transmission quality requirement; the channel quality parameters comprise one or more of reference signal received power, signal to interference and noise ratio, and reference signal received quality;
determining a target data type of data needing to be sent to the user terminal, if the target data type is consistent with the last target data type, maintaining the current target transmission parameter, otherwise determining a target transmission parameter corresponding to the target data type according to the parameter corresponding relation;
and in response to the fact that the variation amplitude of the channel quality parameter reaches a preset amplitude, re-determining the transmission parameters corresponding to the data types by the user terminal.
2. The method according to claim 1, wherein the determining a target data type that needs to send data to the ue, if the target data type is consistent with a previous target data type, maintaining a current target transmission parameter, otherwise determining a target transmission parameter corresponding to the target data type according to the parameter correspondence relationship comprises:
determining a target data type of data needing to be sent to a user terminal, and judging whether the target data type is consistent with the target data type of the last data sending;
if so, maintaining the target transmission parameter when the data is sent last time as the current target transmission parameter;
otherwise, determining the target transmission parameters corresponding to the current target data type based on the parameter corresponding relation.
3. A link self-adaption device based on user data type requirements is characterized by comprising a quality detection module, a parameter recording module and a parameter determining module, wherein:
the quality detection module is used for determining the channel quality parameters of the communication channel and acquiring the transmission quality requirements of the user terminal on different data types; the transmission quality requirement is one or more combination of block error rate, throughput and burst error; the acquiring of the transmission quality requirements of the user terminal on different data types comprises: determining transmission quality requirements of the user terminal for different data types based on the success of the transmission quality requirements; determining transmission quality requirements of the user terminal for different data types according to a set requirement acquisition strategy based on transmission quality requirement acquisition failure; the setting requirement obtaining strategy is used for determining transmission quality requirements of different data types, and comprises the steps of determining according to the previous transmission quality requirements of the user terminal and determining according to the transmission quality requirements of terminals of the same type; recording a transmission quality requirement uploaded when the user terminal accesses last time for a set requirement acquisition strategy determined according to the previous transmission quality requirement of the user terminal, and using the previous transmission quality requirement according to a cache record of the user terminal when the transmission quality requirement acquisition fails; determining a transmission quality requirement to be consistent with the transmission quality requirement uploaded by the user terminals of the same type or the same region of the current user terminal for a set requirement acquisition strategy determined according to the transmission quality requirement of the terminals of the same type;
the parameter recording module is used for sending different types of test data to the user terminal according to different combinations of transmission parameters under the channel environment with different channel quality parameters for each communication channel in advance, testing the data transmission quality under the combinations of the different channel quality parameters, the different transmission parameters and the different data types, and recording the corresponding relation among the channel quality parameters, the different transmission parameters, the different data types and the different data transmission qualities to form a preset mapping relation among the channel quality parameters, the different transmission quality requirements and the different transmission parameters; determining transmission parameters corresponding to each data type by a user terminal based on a channel quality parameter, a transmission quality requirement and a preset mapping relation among the transmission parameters, and recording the parameter corresponding relation between each data type and the transmission parameters, wherein the transmission parameters comprise a modulation mode, a coding mode, redundant information, transmitting power and time-frequency resources, and when the data of the corresponding data type is transmitted by the corresponding transmission parameters, the data transmission effect meets the transmission quality requirement; the channel quality parameters comprise one or more of reference signal received power, signal to interference and noise ratio, and reference signal received quality;
the parameter determining module is used for determining a target data type of data needing to be sent to the user terminal, if the target data type is consistent with the last target data type, maintaining the current target transmission parameter, and otherwise, determining the target transmission parameter corresponding to the target data type according to the parameter corresponding relation;
and the link self-adaptive device is also used for responding to the change amplitude of the channel quality parameter reaching the preset amplitude and re-determining the transmission parameters corresponding to each data type by the user terminal.
4. A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method for link adaptation based on user data type requirements of any of claims 1-2.
5. A storage medium containing computer-executable instructions for performing the method of link adaptation based on user data type requirements of any of claims 1-2 when executed by a computer processor.
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