CN-122028189-A - Data transmission method and device for wireless communication, storage medium and electronic equipment

CN122028189ACN 122028189 ACN122028189 ACN 122028189ACN-122028189-A

Abstract

The application provides a data transmission method and device for wireless communication, a storage medium and electronic equipment. The method comprises the steps of obtaining configuration parameters of multi-antenna transmission, wherein the configuration parameters comprise space flow numbers, modulation symbol sequences, repetition times of the modulation symbols and the number of available subcarriers, the modulation symbols represent symbols of modulated original data to be transmitted, constructing a symbol index mapping table for multi-antenna transmission according to the configuration parameters, mapping the original data to be transmitted corresponding to each modulation symbol to frequency domain subcarrier positions of corresponding space flows according to the symbol index mapping table to obtain data transmission sequences of each space flow, and transmitting the original data to be transmitted of wireless communication according to the data transmission sequences of each space flow. The problem that the existing wireless communication data transmission scheme is low in data transmission efficiency is solved.

Inventors

YANG JING
SUN LUKUAN
FENG XUELIN
LIU PAN
QIAN MANLI
ZHU BIYING
SHI JINGLIN

Assignees

北京中科晶上科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260414

Claims (10)

1. A data transmission method for wireless communication, comprising: Acquiring configuration parameters of multi-antenna transmission, wherein the configuration parameters comprise space flow number, modulation symbol sequence, repetition times of modulation symbols and the number of available subcarriers, and the modulation symbols represent the symbols of the modulated original data to be transmitted; Constructing a symbol index mapping table for the multi-antenna transmission according to the configuration parameters, and mapping the original data to be transmitted corresponding to each modulation symbol to the frequency domain subcarrier position of the corresponding spatial stream according to the symbol index mapping table to obtain the data transmission sequence of each spatial stream; And transmitting the original data to be transmitted of the wireless communication according to the data transmission sequence of each spatial stream.
2. The method of claim 1, wherein constructing a symbol index mapping table for the multi-antenna transmission based on the configuration parameters comprises: determining whether the repetition number of each modulation symbol in the modulation symbol sequence is 1; And under the condition that the repetition times of all the modulation symbols are 1, constructing the symbol index mapping table in a mode of sequentially and alternately filling all the spatial streams according to the sequence of the modulation symbols, wherein the repetition times of all the modulation symbols are 1 to indicate that the modulation symbol repetition transmission is not carried out.
3. The method of claim 2, wherein constructing the symbol index map in such a manner that the spatial streams are alternately filled in turn in the order of the modulation symbol sequence comprises: According to a first formula: constructing the symbol index mapping table, wherein V is the spatial stream number, k is the current processed spatial stream, For the modulation symbol corresponding to the kth spatial stream, For the modulation symbols to be used, , For the index of the symbols on the spatial stream, Is the total number of modulation symbols.
4. The method of claim 1, wherein constructing a symbol index mapping table for the multi-antenna transmission based on the configuration parameters comprises: And under the condition that the repeated modulation symbols exist in the modulation symbol sequence and two space stream transmission exists, constructing the symbol index mapping table for the multi-antenna transmission by taking the index sequence of the modulation symbols mapped by the first space stream as a non-uniform increment sequence and the index sequence of the modulation symbols mapped by the second space stream as an arithmetic progression.
5. The method of claim 4 wherein constructing the symbol index mapping table for the multi-antenna transmission with the index sequence of the modulation symbols of the first spatial stream map as a non-uniformly increasing sequence and the index sequence of the modulation symbols of the second spatial stream map as an arithmetic progression comprises: according to a second formula: , The symbol index mapping table is constructed, wherein, For the modulation symbols corresponding to the first spatial stream, For the modulation symbols corresponding to the second spatial stream, Is a sequence of modulation symbols input to the spatial streams, For the index of the symbols on the spatial stream, , For the number of repetitions of the modulation symbol, , Is the number of frequency domain sub-carriers of each spatial stream, reference signal For pilot symbols corresponding to the second spatial stream, Is the total number of modulation symbols.
6. The method of claim 1, wherein prior to obtaining the configuration parameters for the multi-antenna transmission, the method further comprises: and acquiring the original data to be transmitted, and mapping the original data to be transmitted into the modulation symbols through a modulation mapper.
7. The method of claim 1, wherein after obtaining the configuration parameters for the multi-antenna transmission, the method further comprises: Determining a current transmission mode of the system according to the space flow number, and determining whether a symbol repetition transmission mechanism is started or not according to the repetition times of the modulation symbols.
8. A data transmission apparatus for wireless communication, comprising: The system comprises an acquisition unit, a transmission unit and a transmission unit, wherein the acquisition unit is used for acquiring configuration parameters of multi-antenna transmission, the configuration parameters comprise space flow number, modulation symbol sequence, repetition number of modulation symbols and number of available subcarriers, and the modulation symbols represent symbols of modulated original data to be transmitted; a construction unit, configured to construct a symbol index mapping table for the multi-antenna transmission according to the configuration parameter, and map, according to the symbol index mapping table, the to-be-transmitted original data corresponding to each modulation symbol to a frequency domain subcarrier position of a corresponding spatial stream, so as to obtain a data transmission sequence of each spatial stream; And the transmission unit is used for transmitting the original data to be transmitted of the wireless communication according to the data transmission sequence of each spatial stream.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program, when run, controls a device in which the computer-readable storage medium is located to perform the data transmission method of wireless communication according to any one of claims 1 to 7.
10. An electronic device comprising one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising a data transmission method for performing the wireless communication of any of claims 1-7.

Description

Data transmission method and device for wireless communication, storage medium and electronic equipment Technical Field The present application relates to the field of data transmission technologies for wireless communications, and in particular, to a data transmission method, apparatus, storage medium, and electronic device for wireless communications. Background In the existing star-flash wireless communication SLB system protocol, a frequency domain priority mapping strategy is adopted for multi-antenna layer mapping, wherein when multi-stream transmission is carried out, symbols are sequentially and completely filled with each stream according to a space stream index sequence and then mapped to the next stream, so that the symbols on each space stream are continuously distributed in blocks on a frequency domain, and in a double-stream symbol repeated transmission scene, the mapping of repeated symbols is completely decoupled from the first stream, and a cooperative mechanism is lacked. The method has two serious problems that firstly, as the frequency domain resources of each stream are not interleaved, when the frequency selective fading exists in a channel, a plurality of spatial streams possibly experience deep fading at the same time, the space diversity cannot be effectively utilized, the anti-interference capability is weak, secondly, the repeated mode is fixed and stiff, the repeated mode cannot be dynamically adjusted according to the state information (CSI) of a real-time channel, and the repeated mode is disjointed with the frequency domain alternating mapping trend of advanced communication standards such as 5G NR and the like, so that the improvement of the system performance and the multiplexing of a baseband architecture are limited. In summary, the existing scheme adopts a frequency domain priority mapping mode to cause concentrated distribution of symbols on a frequency domain during multi-stream transmission, and cannot realize space-frequency domain joint diversity, so that the fading resistance of frequency selection is weak, the diversity gain is low, the repeated transmission mode is stiff, the resource allocation cannot be intelligently optimized according to the channel state, and the problem of low data transmission efficiency exists. Disclosure of Invention The application mainly aims to provide a data transmission method, a device, a storage medium and electronic equipment for wireless communication, which at least solve the problem of low data transmission efficiency in the existing wireless communication data transmission scheme. In order to achieve the above objective, according to one aspect of the present application, a data transmission method for wireless communication is provided, which includes obtaining configuration parameters of multi-antenna transmission, wherein the configuration parameters include a spatial stream number, a modulation symbol sequence, a repetition number of modulation symbols, and a number of available subcarriers, the modulation symbols represent symbols of original data to be transmitted after modulation, constructing a symbol index mapping table for the multi-antenna transmission according to the configuration parameters, mapping the original data to be transmitted corresponding to each modulation symbol to a frequency domain subcarrier position of a corresponding spatial stream according to the symbol index mapping table, obtaining a data transmission sequence of each spatial stream, and transmitting the original data to be transmitted for the wireless communication according to the data transmission sequence of each spatial stream. Optionally, constructing a symbol index mapping table for the multi-antenna transmission according to the configuration parameters includes determining whether the repetition number of each modulation symbol in the modulation symbol sequence is all 1, and under the condition that the repetition number of each modulation symbol is all 1, constructing the symbol index mapping table in a mode of sequentially and alternately filling each spatial stream according to the sequence of the modulation symbol sequence, wherein the repetition number of each modulation symbol is all 1 to indicate that the modulation symbol repetition transmission is not performed. Optionally, constructing the symbol index mapping table in a manner of sequentially and alternately filling each spatial stream according to the order of the modulation symbol sequence includes: constructing the symbol index mapping table, wherein V is the spatial stream number, k is the current processed spatial stream, For the modulation symbol corresponding to the kth spatial stream,For the modulation symbols to be used,,For the index of the symbols on the spatial stream,Is the total number of modulation symbols. Optionally, constructing a symbol index mapping table for the multi-antenna transmission according to the configuration parameters includes constructing