CN112532346A - Link self-adaption method and device based on user time requirement - Google Patents
Link self-adaption method and device based on user time requirement Download PDFInfo
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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
- 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
- H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
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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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
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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
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
- H04L1/0021—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach in which the algorithm uses adaptive thresholds
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Abstract
The embodiment of the application discloses a link self-adaption method and device based on user time requirements. According to the technical scheme provided by the embodiment of the application, the link self-adaptive algorithm suitable for the user terminal in different time stages is determined according to the channel quality parameters of the current communication channels and the transmission quality requirements of the user terminal on the different time stages, the corresponding link self-adaptive algorithm is determined according to the time stage corresponding to the current time point, the transmission parameters for the user terminal in data transmission are determined based on the determined link self-adaptive algorithm, so that the data transmission effect reaches the transmission quality requirements of the current time stage, the suitable link self-adaptive algorithm is adapted for the user terminal according to the different time stages, 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 time 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 time 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 time requirements, including:
determining channel quality parameters of a communication channel, and acquiring transmission quality requirements of a user terminal at different time stages;
determining link adaptive algorithms corresponding to different time stages according to the channel quality parameters and the transmission quality requirements of the different time stages;
determining a link adaptive algorithm according to a time phase corresponding to the current time point, and determining transmission parameters for transmitting data to the user terminal based on the link adaptive algorithm, 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 is transmitted by the transmission parameters, the data transmission effect meets the transmission quality requirement of the current time phase.
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 the link adaptive algorithm corresponding to different time phases according to the channel quality parameter and the transmission quality requirements of different time phases includes:
and determining the link adaptive algorithm with the data transmission effect meeting the transmission quality requirement of the user terminal at different time stages based on the preset mapping relation among the channel quality parameters, the data transmission effect and the link adaptive algorithm.
Further, before determining the channel quality parameter of the communication channel, the method further includes:
determining data transmission effect obtained by performing data transmission test on each communication channel based on different link adaptive algorithms under different channel quality parameters;
and establishing a preset mapping relation among the channel quality parameters, the data transmission effect and the link self-adaptive algorithm.
Further, the determining a link adaptive algorithm according to the time phase corresponding to the current time point includes:
determining a current time point, and judging whether the current time point is in a last time stage;
if yes, maintaining the current link self-adaptive algorithm;
otherwise, determining a link self-adaptive algorithm according to the time phase corresponding to the current time point.
Further, after determining the link adaptive algorithms corresponding to different time phases according to the channel quality parameters and the transmission quality requirements of different time phases, the method further includes:
monitoring the channel variation amplitude of the channel quality parameter of each communication channel in real time, and re-determining the link adaptive algorithm corresponding to different time stages when the channel variation amplitude reaches a set variation threshold value.
Further, the acquiring the transmission quality requirements of the user terminal at different time stages includes:
directly determining the transmission quality requirements of the user terminal at different time stages based on the success of the transmission quality requirement acquisition;
and determining the transmission quality requirements of the user terminal at different time stages according to the transmission quality requirements of the terminals of the same type based on the transmission quality requirement acquisition failure.
In a second aspect, an embodiment of the present application provides a link adaptation device based on a user time requirement, including a requirement obtaining module, an algorithm determining module, and a parameter determining module, where:
the demand acquisition module is used for determining channel quality parameters of a communication channel and acquiring transmission quality requirements of a user terminal on different time stages;
the algorithm determining module is used for determining link self-adaptive algorithms corresponding to different time stages according to the channel quality parameters and the transmission quality requirements of the different time stages;
and the parameter determining module is used for determining a link self-adaptive algorithm according to the time phase corresponding to the current time point and determining transmission parameters for transmitting data to the user terminal based on the link self-adaptive algorithm, 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 is transmitted by using the transmission parameters, the data transmission effect meets the transmission quality requirement of the current time phase.
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 algorithm determining module is specifically configured to determine, based on the channel quality parameter, the data transmission effect, and a preset mapping relationship among link adaptation algorithms, a link adaptation algorithm in which the data transmission effect meets the transmission quality requirement at different time stages of the user terminal.
Further, the apparatus further comprises a mapping relationship establishing module for, before the algorithm determining module determines the channel quality parameter of the communication channel:
determining data transmission effect obtained by performing data transmission test on each communication channel based on different link adaptive algorithms under different channel quality parameters;
and establishing a preset mapping relation among the channel quality parameters, the data transmission effect and the link self-adaptive algorithm.
Further, when the parameter determining module determines the link adaptation algorithm according to the time phase corresponding to the current time point, the method specifically includes:
determining a current time point, and judging whether the current time point is in a last time stage;
if yes, maintaining the current link self-adaptive algorithm;
otherwise, determining a link self-adaptive algorithm according to the time phase corresponding to the current time point.
Further, the device further comprises a channel monitoring module, configured to monitor a channel variation amplitude of a channel quality parameter of each communication channel in real time, and re-determine a link adaptive algorithm corresponding to different time periods when the channel variation amplitude reaches a set variation threshold.
Further, when the requirement obtaining module obtains the transmission quality requirements of the user terminal at different time stages, the requirement obtaining module specifically includes:
directly determining the transmission quality requirements of the user terminal at different time stages based on the success of the transmission quality requirement acquisition;
and determining the transmission quality requirements of the user terminal at different time stages according to the transmission quality requirements of the terminals of the same type based on the transmission quality requirement acquisition failure.
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 the method for link adaptation based on user time 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 method for link adaptation based on user time requirements as described in the first aspect when executed by a computer processor.
According to the embodiment of the application, the link self-adaptive algorithm suitable for the user terminal in different time stages is determined according to the channel quality parameters of the current communication channels and the transmission quality requirements of the user terminal on the different time stages, the corresponding link self-adaptive algorithm is determined according to the time stage corresponding to the current time point, the transmission parameters for transmitting data to the user terminal are determined based on the determined link self-adaptive algorithm, so that the data transmission effect reaches the transmission quality requirements of the current time stage, the suitable link self-adaptive algorithm is adapted to the user terminal according to the different time stages, and the flexibility of link self-adaptation is effectively improved.
Drawings
Fig. 1 is a flowchart of a link adaptation method based on user time requirements according to an embodiment of the present application;
fig. 2 is a flowchart of another link adaptation method based on user time requirements according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a link adaptation apparatus based on user time 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 of a link adaptation method based on user time requirements according to an embodiment of the present application, where the link adaptation method based on user time requirements according to an embodiment of the present application may be performed by a link adaptation apparatus based on user time requirements, and the link adaptation apparatus based on user time 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 method for a link adaptation apparatus based on user time requirements to perform link adaptation based on user time requirements. Referring to fig. 1, the link adaptation method based on user time requirement includes:
s101: and determining the channel quality parameters of the communication channel, and acquiring the transmission quality requirements of the user terminal at different time stages.
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 time phases according to the data transmission quality requirements for different time phases, 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 link self-adaptive algorithms corresponding to different time stages according to the channel quality parameters and the transmission quality requirements of different time stages.
For example, in advance, under the channel environment with different channel quality parameters, each communication channel performs data transmission based on different link adaptation algorithms, and determines data transmission effects corresponding to the different channel quality parameters and the link adaptation algorithms. The adaptive algorithms provided by the embodiment comprise a Water-Filling algorithm, a Hughes-Hartogs algorithm and a Chow algorithm.
Further, according to the transmission quality requirements of the user terminal at different time stages, a link adaptive algorithm is determined, wherein the corresponding data transmission effects at different time stages meet the transmission quality requirements.
S103: and determining a link self-adaptive algorithm according to the time phase corresponding to the current time point, and determining transmission parameters for transmitting data to the user terminal based on the link self-adaptive algorithm.
The transmission parameters provided in this embodiment include one or more of a modulation method, a coding method, redundant information, transmission power, and time-frequency resources, and when data is transmitted according to the corresponding transmission parameters, the data transmission effect meets the transmission quality requirement of the current time phase.
Exemplarily, a current time point is determined, and a link adaptation algorithm corresponding to the time phase is determined according to the time phase corresponding to the current time point. Further, the transmission parameters of the data are transmitted to the user terminal according to the link adaptive algorithm, and the data are sent to the user terminal according to the transmission parameters.
The link adaptive algorithm applicable to the user terminal in different time phases is determined according to the channel quality parameters of the current communication channels and the transmission quality requirements of the user terminal on different time phases, the corresponding link adaptive algorithm is determined according to the time phase corresponding to the current time point, the transmission parameters for transmitting data to the user terminal are determined based on the determined link adaptive algorithm, so that the data transmission effect reaches the transmission quality requirements of the current time phase, the appropriate link adaptive algorithm is adapted to the user terminal according to the different time phases, and the flexibility of link adaptation is effectively improved.
On the basis of the foregoing embodiments, fig. 2 is a flowchart of another user time requirement-based link adaptation method provided in an embodiment of the present application, which is an embodiment of the above-mentioned user time requirement-based link adaptation method. Referring to fig. 2, the link adaptation method based on user time requirement includes:
s201: and determining the data transmission effect obtained by carrying out data transmission test on each communication channel based on different link self-adaptive algorithms under different channel quality parameters.
Specifically, in the channel environment with different channel quality parameters for each communication channel, test data is sent to the user terminal based on the combination of different link adaptive algorithms, and the data transmission effect under the combination of different channel quality parameters and link adaptive algorithms is tested. Wherein the representation of the data transmission effect is consistent with the representation of the required channel quality.
S202: and establishing a preset mapping relation among the channel quality parameters, the data transmission effect and the link self-adaptive algorithm.
Specifically, after the data transmission effect under the combination of different channel quality parameters and link adaptive algorithms is obtained through testing, a preset mapping relationship is established based on the corresponding relationship among the channel quality parameters, the data transmission effect and the link adaptive algorithms. It will be appreciated that the link adaptation algorithm that is applicable may be determined based on the channel quality parameters of the current communication channel and the desired data transmission effect to be achieved.
S203: and determining the channel quality parameters of the communication channel, and acquiring the transmission quality requirements of the user terminal at different time stages.
Wherein the channel quality parameter comprises one or more of reference signal received power, signal to interference and noise ratio, reference signal received quality, channel quality, and channel matrix feedback.
Specifically, acquiring the transmission quality requirements of the user terminal at different time stages includes:
s2031: and directly determining the transmission quality requirements of the user terminal at different time stages based on the success of the transmission quality requirement acquisition.
Specifically, when the user terminal accesses the link adaptation device, the user terminal uploads the transmission quality requirements for different time periods to the link adaptation device, and when the transmission quality requirements are received and successfully analyzed, the transmission quality requirements of the user terminal for different data types are directly determined.
S2032: and determining the transmission quality requirements of the user terminal at different time stages according to the transmission quality requirements of the terminals of the same type based on the transmission quality requirement acquisition failure.
Specifically, when the acquisition of the transmission quality requirement fails, the transmission quality requirements of the current user terminal at different time stages can be determined according to the transmission quality requirements of terminals of the same type, that is, the transmission quality requirements are determined to be consistent with the transmission quality requirements uploaded by the terminals of the same type of the current user terminal.
S204: and determining the link adaptive algorithm with the data transmission effect meeting the transmission quality requirement of the user terminal at different time stages based on the preset mapping relation among the channel quality parameters, the data transmission effect and the link adaptive algorithm.
Specifically, based on the preset mapping relationship among the channel quality parameters, the data transmission effect and the link adaptive algorithm, according to the transmission quality requirements required to be met by the user terminal at different time stages, the corresponding link adaptive algorithm when the data transmission effect meets the transmission quality requirements under the current channel quality parameters is determined, and the link adaptive algorithms applicable to the user terminal at different time stages are recorded to form the algorithm applicable corresponding relationship.
In one possible embodiment, when it is determined that there are multiple applicable link adaptation algorithms in a time period, the link adaptation algorithm that is most effective for data transmission may be selected, or the link adaptation algorithm that requires the least computational power or is the fastest computational speed may be selected.
S205: and determining the current time point, and judging whether the current time point is in the last time stage. If so, go to step S206, otherwise go to step S207.
The previous time period may be a time period when the time point is determined last time, and if the current time point is still within the previous time period, the step S206 is skipped, and if the current time point has entered the next time period, the step S207 is skipped.
S206: the current link adaptation algorithm is maintained.
Specifically, based on the time phase when the current time point is still located at the time point determined last time, the link adaptation algorithm does not need to be determined again, the current link adaptation algorithm can be maintained, and the process goes to step S208.
S207: and determining a link self-adaptive algorithm according to the time phase corresponding to the current time point.
Specifically, when the current time point enters the next time phase, because the transmission quality requirement corresponding to the user terminal at the next time phase changes, the link adaptive algorithm applicable to the current time phase needs to be determined again according to the correspondence relationship applicable to the algorithm of the link adaptive algorithm and the different time phases by the user terminal.
It can be understood that, after the link adaptation algorithm is re-determined according to the time phase corresponding to the current time point, the next time phase becomes the last time phase corresponding to the next link adaptation algorithm determined to be applicable according to the time point.
S208: and determining transmission parameters for transmitting data to the user terminal based on the link adaptive algorithm.
Specifically, after determining a link adaptation algorithm applicable at the current time point, a transmission parameter for transmitting data to the user terminal is determined based on the link adaptation algorithm, and the data is transmitted to the user terminal according to the determined transmission parameter.
The transmission parameters comprise one or more of a modulation mode, a coding mode, redundant information, transmission power and time-frequency resources, and when data is transmitted by the transmission parameters, the data transmission effect meets the transmission quality requirement of the current time stage.
S209: monitoring the channel variation amplitude of the channel quality parameter of each communication channel in real time, and re-determining the link adaptive algorithm corresponding to different time stages when the channel variation amplitude reaches a set variation threshold value.
Specifically, the channel quality parameters of each communication channel are obtained in real time, the channel variation amplitude of the channel quality parameters of each communication channel is calculated, when the channel variation amplitude reaches a set variation threshold, a link adaptive algorithm that the data transmission effect of the user terminal meets the transmission quality requirement at different time stages is determined based on the preset mapping relationship again, and the process returns to step S205.
Step S204 may be referred to as a method for re-determining the link adaptive algorithm applicable to the ue at different time periods, which is not described in detail in this embodiment.
The link adaptive algorithm applicable to the user terminal in different time phases is determined according to the channel quality parameters of the current communication channels and the transmission quality requirements of the user terminal on different time phases, the corresponding link adaptive algorithm is determined according to the time phase corresponding to the current time point, the transmission parameters for transmitting data to the user terminal are determined based on the determined link adaptive algorithm, so that the data transmission effect reaches the transmission quality requirements of the current time phase, the appropriate link adaptive algorithm is adapted to the user terminal according to the different time phases, and the flexibility of link adaptation is effectively improved. Meanwhile, the link adaptive algorithms corresponding to different time stages are updated in real time according to the change conditions of the channel quality parameters of each communication channel, and the quality of data transmission is effectively ensured.
Fig. 3 is a schematic structural diagram of a link adaptation apparatus based on user time requirements according to an embodiment of the present application. Referring to fig. 3, the link adaptation apparatus based on user time demand includes a quality monitoring module 31, an algorithm determination module 32, and a parameter determination module 33.
The quality monitoring 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 time periods; an algorithm determining module 32, configured to determine, according to the channel quality parameter and the transmission quality requirements at different time stages, link adaptive algorithms corresponding to the different time stages; the parameter determining module 33 is configured to determine a link adaptive algorithm according to a time phase corresponding to the current time point, and determine a transmission parameter for transmitting data to the user terminal based on the link adaptive algorithm, where the transmission parameter includes one or more of a modulation mode, a coding mode, redundant information, a transmit power, and a time-frequency resource, and when the data is transmitted according to the transmission parameter, a data transmission effect meets a transmission quality requirement of the current time phase.
The link adaptive algorithm applicable to the user terminal in different time phases is determined according to the channel quality parameters of the current communication channels and the transmission quality requirements of the user terminal on different time phases, the corresponding link adaptive algorithm is determined according to the time phase corresponding to the current time point, the transmission parameters for transmitting data to the user terminal are determined based on the determined link adaptive algorithm, so that the data transmission effect reaches the transmission quality requirements of the current time phase, the appropriate link adaptive algorithm is adapted to the user terminal according to the different time phases, and the flexibility of link 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, the algorithm determining module 32 is specifically configured to determine, based on the channel quality parameter, the data transmission effect, and a preset mapping relationship among the link adaptation algorithms, the link adaptation algorithm in which the data transmission effect meets the transmission quality requirement at different time stages of the user terminal.
In one possible embodiment, the apparatus further comprises a mapping relationship establishing module for, before the algorithm determining module 32 determines the channel quality parameter of the communication channel:
determining data transmission effect obtained by performing data transmission test on each communication channel based on different link adaptive algorithms under different channel quality parameters;
and establishing a preset mapping relation among the channel quality parameters, the data transmission effect and the link self-adaptive algorithm.
In a possible embodiment, when the parameter determining module 33 determines the link adaptive algorithm according to the time phase corresponding to the current time point, the method specifically includes:
determining a current time point, and judging whether the current time point is in a last time stage;
if yes, maintaining the current link self-adaptive algorithm;
otherwise, determining a link self-adaptive algorithm according to the time phase corresponding to the current time point.
In a possible embodiment, the apparatus further includes a channel monitoring module, configured to monitor a channel variation amplitude of a channel quality parameter of each communication channel in real time, and when the channel variation amplitude reaches a set variation threshold, re-determine link adaptive algorithms corresponding to different time periods.
In a possible embodiment, when the requirement obtaining module obtains the transmission quality requirements of the user terminal at different time stages, the requirement obtaining module specifically includes:
directly determining the transmission quality requirements of the user terminal at different time stages based on the success of the transmission quality requirement acquisition;
and determining the transmission quality requirements of the user terminal at different time stages according to the transmission quality requirements of the terminals of the same type based on the transmission quality requirement acquisition failure.
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 time 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 method for link adaptation based on user time requirements as provided in the embodiments described 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, which is a computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the link adaptation method based on user time requirements (e.g., the quality monitoring module 31, the algorithm determination module 32, and the parameter determination module 33 in the link adaptation apparatus based on user time 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, i.e. implements the above-mentioned link adaptation method based on user time requirements.
The link adaptation device, the equipment and the computer based on the user time requirement provided by the above can be used for executing the link adaptation method based on the user time requirement provided by any of the above embodiments, and have corresponding functions and advantages.
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 time requirement provided in the foregoing embodiments, where the link adaptation method based on user time requirement includes: determining channel quality parameters of a communication channel, and acquiring transmission quality requirements of a user terminal at different time stages; determining link adaptive algorithms corresponding to different time stages according to the channel quality parameters and the transmission quality requirements of the different time stages; determining a link adaptive algorithm according to a time phase corresponding to the current time point, and determining transmission parameters for transmitting data to the user terminal based on the link adaptive algorithm, 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 is transmitted by the transmission parameters, the data transmission effect meets the transmission quality requirement of the current time phase.
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 user time requirement described above, and may also perform related operations in the link adaptation method based on user time requirement provided in any embodiments of the present application.
The link adaptation device, the apparatus, and the storage medium based on the user time requirement provided in the foregoing embodiments may perform the link adaptation method based on the user time requirement provided in any embodiment of the present application, and refer to the link adaptation method based on the user time 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 (10)
1. A method for link adaptation based on user time requirements, comprising:
determining channel quality parameters of a communication channel, and acquiring transmission quality requirements of a user terminal at different time stages;
determining link adaptive algorithms corresponding to different time stages according to the channel quality parameters and the transmission quality requirements of the different time stages;
determining a link adaptive algorithm according to a time phase corresponding to the current time point, and determining transmission parameters for transmitting data to the user terminal based on the link adaptive algorithm, 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 is transmitted by the transmission parameters, the data transmission effect meets the transmission quality requirement of the current time phase.
2. The method of claim 1, wherein the channel quality parameters comprise one or more of a reference signal received power, a signal to interference and noise ratio, and a reference signal received quality.
3. The method of claim 1, wherein the determining the link adaptation algorithms corresponding to different time phases according to the channel quality parameter and the transmission quality requirement of different time phases comprises:
and determining the link adaptive algorithm with the data transmission effect meeting the transmission quality requirement of the user terminal at different time stages based on the preset mapping relation among the channel quality parameters, the data transmission effect and the link adaptive algorithm.
4. The method of claim 3, wherein prior to determining the channel quality parameter for the communication channel, further comprising:
determining data transmission effect obtained by performing data transmission test on each communication channel based on different link adaptive algorithms under different channel quality parameters;
and establishing a preset mapping relation among the channel quality parameters, the data transmission effect and the link self-adaptive algorithm.
5. The method of claim 3, wherein the determining the link adaptation algorithm according to the time phase corresponding to the current time point comprises:
determining a current time point, and judging whether the current time point is in a last time stage;
if yes, maintaining the current link self-adaptive algorithm;
otherwise, determining a link self-adaptive algorithm according to the time phase corresponding to the current time point.
6. The method of claim 1, wherein after determining the link adaptation algorithms corresponding to different time phases according to the channel quality parameters and the transmission quality requirements of different time phases, the method further comprises:
monitoring the channel variation amplitude of the channel quality parameter of each communication channel in real time, and re-determining the link adaptive algorithm corresponding to different time stages when the channel variation amplitude reaches a set variation threshold value.
7. The method of claim 1, wherein the obtaining the transmission quality requirements of the user terminal for different time periods comprises:
directly determining the transmission quality requirements of the user terminal at different time stages based on the success of the transmission quality requirement acquisition;
and determining the transmission quality requirements of the user terminal at different time stages according to the transmission quality requirements of the terminals of the same type based on the transmission quality requirement acquisition failure.
8. A link self-adaption device based on user time requirements is characterized by comprising a requirement acquisition module, an algorithm determination module and a parameter determination module, wherein:
the demand acquisition module is used for determining channel quality parameters of a communication channel and acquiring transmission quality requirements of a user terminal on different time stages;
the algorithm determining module is used for determining link self-adaptive algorithms corresponding to different time stages according to the channel quality parameters and the transmission quality requirements of the different time stages;
and the parameter determining module is used for determining a link self-adaptive algorithm according to the time phase corresponding to the current time point and determining transmission parameters for transmitting data to the user terminal based on the link self-adaptive algorithm, 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 is transmitted by using the transmission parameters, the data transmission effect meets the transmission quality requirement of the current time phase.
9. 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 time requirements of any of claims 1-7.
10. A storage medium containing computer-executable instructions for performing the user time demand based link adaptation method of any one of claims 1-7 when executed by a computer processor.
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