CN-121984822-A - Information analysis method and device, electronic equipment and storage medium

CN121984822ACN 121984822 ACN121984822 ACN 121984822ACN-121984822-A

Abstract

The embodiment of the invention provides an information analysis method, an information analysis device, electronic equipment and a storage medium, wherein the method comprises the steps of obtaining a level signal of a target sampling point position in a clock obtaining part, determining an analysis strategy of the clock obtaining part according to the level amplitude combination condition of the level signal, and analyzing the clock obtaining part according to the analysis strategy. The embodiment of the invention can solve the problem that the cyclic prefix of the clock acquisition part is difficult to distinguish from the sampling point, can realize accurate analysis of the information of the clock acquisition part, reduces data detection errors and improves the accuracy of information analysis.

Inventors

LIU SHUO
LIU HAIJIAO
MA YUJUAN
LI XIAYU
XIN WEI

Assignees

中国信息通信研究院

Dates

Publication Date: 20260505
Application Date: 20260205

Claims (10)

1. An information parsing method, the method comprising: Acquiring a level signal of a target sampling point position in a clock acquisition part; determining an analysis strategy of the clock acquisition part according to the level amplitude combination condition of the level signals; And analyzing the clock acquisition part according to the analysis strategy.
2. The method of claim 1, wherein the target sampling point location comprises at least the first five sampling points of the clock acquisition portion, and wherein determining the resolution strategy of the clock acquisition portion based on the level magnitude combination of the target sampling point locations comprises at least one of: if the level amplitude combination condition of the target sampling point position comprises that the first four level amplitudes are fixed transmission level combinations, determining that the analysis strategy of the clock acquisition part is a first analysis strategy; If the level amplitude combination condition of the target sampling point position comprises that the first four level amplitudes are not fixed transmission level combinations, but the second to fifth level amplitudes are fixed transmission level combinations, determining that the analysis strategy of the clock acquisition part is a second analysis strategy; And if the level amplitude combination condition of the target sampling point position comprises that the first four level amplitudes are not fixed transmission level combinations and the second to fifth level amplitudes are not fixed transmission level combinations, determining that the clock acquisition part is a transmission error.
3. The method of claim 1, wherein the resolution policy comprises a first resolution policy, and wherein the resolving the clock acquisition portion according to the resolution policy comprises at least one of: The number of sampling points of the cyclic prefix of the clock acquisition part is not corrected; correcting the number of sampling points of the cyclic prefix of the clock acquisition portion, and removing the cyclic prefix of the clock acquisition portion.
4. A method according to claim 3, wherein said removing the cyclic prefix of the clock acquisition portion comprises at least one of: Determining a first high-level sampling point in the clock acquisition part as a reference position, determining a target position after the sampling point of one orthogonal frequency division multiplexing symbol in the reference position in the clock acquisition part, and removing a cyclic prefix in the clock acquisition part by taking the target position as a starting point; and determining a first sampling point after the end position of the second orthogonal frequency division multiplexing symbol of the start indicating part before the clock obtaining part as a target position, and removing the cyclic prefix in the clock obtaining part by taking the target position as a starting point.
5. A method according to claim 3, wherein said correcting the cyclic prefix of the clock acquisition portion comprises at least one of: subtracting 1 from the number of sampling points of the cyclic prefix in the clock acquisition part; And updating the sampling point number of the cyclic prefix of the clock acquisition part according to a preset time domain point number threshold value, and executing cyclic prefix removal operation on the clock acquisition part.
6. The method of claim 1, wherein the resolution policy comprises a second resolution policy, the resolving the clock acquisition portion according to the resolution policy comprising: And removing the cyclic prefix of the clock acquisition part.
7. The method of claim 6, wherein said removing the cyclic prefix of the clock acquisition portion comprises at least one of: Taking a first sampling point of the clock acquisition part as a target position, and removing a cyclic prefix in the clock acquisition part by taking the target position as a starting point; And determining a second sampling point in the clock acquisition part as a reference position, determining a target position after the sampling point of one orthogonal frequency division multiplexing symbol in the reference position in the clock acquisition part, and removing the cyclic prefix in the clock acquisition part by taking the target position as a starting point.
8. An information analysis apparatus, the apparatus comprising: The signal acquisition module is used for acquiring a level signal of a target sampling point position in the clock acquisition part; the strategy determining module is used for determining an analysis strategy of the clock acquisition part according to the level amplitude combination condition of the level signals; and the information analysis module is used for analyzing the clock acquisition part according to the analysis strategy.
9. An electronic device, the electronic device comprising: And a memory communicatively coupled to the at least one processor; Wherein the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the information parsing method of any one of claims 1-7.
10. A computer readable storage medium storing computer instructions for causing a processor to implement the information parsing method of any one of claims 1-7 when executed.

Description

Information analysis method and device, electronic equipment and storage medium Technical Field The present invention relates to the field of wireless communications technologies, and in particular, to an information analysis method, an information analysis device, an electronic device, and a storage medium. Background An internet of things Device of the passive internet of things (internet of things) is called Device, and in an internet of things mechanism of the internet of things, the Device cost and the complexity are low, so that the performance is not good, and the Device cannot keep full network synchronization with the existing network like a common network terminal. Depending on the capabilities and communication mode, device may be further classified into Device 1, device 2, etc., where Device 1 has the lowest cost and complexity, has a sampling frequency offset (Sampling Frequency Offset, SFO) of up to 10 5, and is immediately up to 10% offset from 1 point for every 10 points. Therefore, the Device cannot achieve real-time synchronization with the Reader side, and can achieve asynchronous synchronization with the Reader side only by means of a synchronous signal attached to transmission. The Downlink transmission in the current IoT is called Reader to Device (R2D) transmission, and the control information is mainly transmitted through a physical Reader Downlink Channel (PHYSICAL READER Downlink Channel, PRDCH). In order to multiplex the existing base station as much as possible, the downlink transmission will use DFT-S-OFDM waveform and will be preceded by a Cyclic Prefix (CP) in the transmission to multiplex the transmission procedure and transmission facilities of the base station. Wherein the downstream transmission structure uses R-TAS and PRDCH, wherein, referring to fig. 1, the R-TS includes a start indication part (Sart Indicator Part, SIP) and a clock acquisition part (Clock Acquisition Part, CAP), wherein the SIP includes two orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols, a first symbol transmits ON-OFF and a second symbol transmits ON-OFF, and the CAP transmits the structure ON-OFF-ON-OFF. When the Device detects, if the number of sampling points carried by each OFDM symbol is large, the CP is hard to distinguish from the sampling points, so that the CAP cannot be accurately resolved, which will cause a problem in data detection. Disclosure of Invention The invention provides an information analysis method, an information analysis device, electronic equipment and a storage medium, which are used for solving the problem that a cyclic prefix of a clock acquisition part is difficult to distinguish from a sampling point, realizing accurate analysis of information of the clock acquisition part, reducing data detection errors and improving the accuracy of information analysis. According to an aspect of the present invention, there is provided an information parsing method, wherein the method includes: Acquiring a level signal of a target sampling point position in a clock acquisition part; determining an analysis strategy of the clock acquisition part according to the level amplitude combination condition of the level signals; And analyzing the clock acquisition part according to the analysis strategy. According to another aspect of the present invention, there is provided an information parsing apparatus, wherein the apparatus includes: The signal acquisition module is used for acquiring a level signal of a target sampling point position in the clock acquisition part; the strategy determining module is used for determining an analysis strategy of the clock acquisition part according to the level amplitude combination condition of the level signals; and the information analysis module is used for analyzing the clock acquisition part according to the analysis strategy. According to another aspect of the present invention, there is provided an electronic apparatus including: at least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform an information parsing method according to any one of the embodiments of the present invention. According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement an information parsing method according to any embodiment of the present invention when executed. According to the technical scheme, the analysis strategy of the clock acquisition part is determined according to the level amplitude combination condition of the level signals by acquiring the level signals of the target sampling point position in the clock acquisition part, and the clock acquisition part is analyzed according to the determined analysis strategy. According to the embo