CN116760672A

CN116760672A - Method and device for processing high-speed rail resonance interval and user equipment

Info

Publication number: CN116760672A
Application number: CN202310643091.XA
Authority: CN
Inventors: 邓祝明; 曾鹏飞
Original assignee: Nanjing Xingsi Semiconductor Co ltd
Current assignee: Nanjing Xingsi Semiconductor Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-09-15

Abstract

The application provides a processing method, a processing device and user equipment for a high-speed rail resonance interval. The processing method is applied to User Equipment (UE). The processing method comprises the following steps: under the condition that the UE is determined to be in a high-speed rail scene, determining whether the UE is in a high-speed rail resonance interval according to the received receiving signal; under the condition that the UE is in a high-speed rail resonance zone, the frequency offset estimation value is processed, channel parameter estimation in a high-speed rail scene is carried out according to the processed frequency offset estimation value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of time leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poorer and the communication quality of the UE is influenced are solved.

Description

Method and device for processing high-speed rail resonance interval and user equipment

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for processing a high-speed rail resonance interval, a computer readable storage medium, and a user equipment.

Background

High-speed rail has become the most common vehicle for long distance travel. The communication quality on the high-speed rail also becomes an important index of UE (User Equipment) side performance. Due to the uniqueness of the high-speed rail channel, multiple base stations may transmit the same signal. When the train runs to the middle of the two base stations, signals of the adjacent base stations arrive at the UE at the same time, and the UE receives signals with opposite frequency offset and same delay. Since the time domain channel impulse responses of the signals are completely coincident, the UE cannot correctly estimate the frequency offset estimation values (Frequency Offset Estimator, abbreviated as FOE) and Doppler Shift (Doppler Shift) of the two base station signals through the time domain channel impulse responses, so the above scenario is generally called a high-speed rail resonance interval.

Since the duration of the high-iron resonance interval is shorter, the influence of the high-iron resonance interval is generally less considered. In the prior art, for the treatment of the resonance interval of the high-speed rail, a fixed Doppler is generally adopted for carrying out subsequent work. However, the method of taking a fixed value for Doppler is not robust, and the influence of FOE on communication quality is ignored.

Disclosure of Invention

The application mainly aims to provide a processing method and device for a high-speed rail resonance interval, a computer readable storage medium and user equipment, so as to solve the problems that in the prior art, the robustness of a processing strategy of UE in the high-speed rail resonance interval is poor and the communication quality of the UE is influenced.

According to an aspect of an embodiment of the present invention, there is provided a processing method of a high-speed rail resonance interval, where the processing method is applied in a user equipment UE, the processing method includes: under the condition that the UE is determined to be in a high-speed rail scene, determining whether the UE is in a high-speed rail resonance interval according to the received receiving signal; and under the condition that the UE is in a high-speed rail resonance interval, processing the frequency offset estimation value, and estimating channel parameters in a high-speed rail scene according to the processed frequency offset estimation value.

Optionally, in the case of determining that the UE is in the high-speed rail scenario, determining, according to the received signal, whether the UE is in the high-speed rail resonance interval includes: under the condition that the received signals are successfully clustered, two paths of clusters with the largest energy obtained by clustering are respectively determined to be a first path of cluster and a second path of cluster, and the energy of the second path of cluster is smaller than that of the first path of cluster; determining the energy difference between the first diameter cluster and the second diameter cluster to obtain a first energy difference; and determining whether the UE is in a high-speed rail resonance interval according to the first energy difference and at least one of the first delay difference and the frequency offset estimation value of the second path cluster, wherein the first delay difference is the delay difference between the first path cluster and the second path cluster.

Optionally, determining whether the UE is in a high-speed rail resonance interval according to the first energy difference and at least one of the first delay difference and the frequency offset estimation value of the second path cluster includes: determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than a first energy threshold and the first time delay difference is smaller than a first time delay threshold; or determining that the UE is in a high-speed railway resonance interval under the condition that the first energy difference is smaller than the first energy threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value; or determining that the UE is in a high-speed railway resonance interval under the condition that the first energy difference is smaller than a first energy threshold, the first time delay difference is smaller than the first time delay threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value.

Optionally, when the UE is in a high-speed rail resonance interval, processing the frequency offset estimation value, and performing channel parameter estimation in a high-speed rail scene according to the processed frequency offset estimation value, including: adjusting an AFC adjustment threshold value, and performing compensation processing on a plurality of path clusters obtained by clustering based on a received signal based on an automatic frequency calibration AFC algorithm and the adjusted AFC adjustment threshold value to obtain a frequency offset estimation value of each path cluster after the compensation processing; performing back-inversion processing on the frequency offset estimation value of each path cluster after compensation processing to obtain the frequency offset estimation value of each path cluster after back-inversion processing; estimating channel parameters in a high-speed rail scene based on Doppler frequency shift of each path cluster and the corresponding frequency offset estimated value after the return processing; and/or under the condition that the received signals cannot be successfully clustered, estimating channel parameters in a high-speed railway scene based on the Doppler frequency shift of each path cluster obtained last time and the processed frequency offset estimation value.

Optionally, when the UE is in a high-speed rail resonance interval, the method further includes: under the condition that the received signals are successfully clustered, determining two paths of clusters with maximum energy obtained by clustering as a third path of cluster and a fourth path of cluster, wherein the energy of the fourth path of cluster is smaller than that of the third path of cluster; determining the energy difference between the third-diameter cluster and the fourth-diameter cluster to obtain a second energy difference; and under the condition that the second energy difference is larger than a second energy threshold value, the second time delay difference is larger than a second time delay threshold value, and the duration that the frequency offset estimated value of the fourth-path cluster is lower than the frequency offset estimated limit value is larger than the first preset time, determining that the UE leaves the high-speed rail resonance interval, wherein the second time delay difference is the time delay difference between the third-path cluster and the fourth-path cluster.

Optionally, the process of determining that the UE is in the high-speed rail scene includes: determining that the UE is in a high-speed scene under the condition that the signal-to-noise ratio of the received signal is larger than a first signal-to-noise ratio threshold value, the current Doppler frequency shift is larger than a Doppler frequency shift threshold value and/or the current frequency offset estimation value is larger than a frequency offset estimation limit value; and under the condition that the UE is in a high-speed scene and the received signals are successfully clustered, determining that the UE is in a high-speed scene.

Optionally, after determining that the UE leaves the high-speed rail resonance interval, the processing method further includes: under the condition that a preset condition is met, estimating channel parameters in a non-high-speed rail scene based on a received signal, wherein the preset condition is as follows: the duration of the failure to cluster the received signal is longer than a second preset time, and/or the duration of the failure to cluster the received signal is longer than the second preset time; and under the condition that the preset condition is not met, determining whether the UE is in a high-speed rail resonance interval or not based on the received receiving signal again.

According to another aspect of the embodiment of the present invention, there is also provided a processing apparatus for a high-speed rail resonance interval, where the processing apparatus is applied to a user equipment UE, and the processing apparatus includes: the first determining unit is used for determining whether the UE is in a high-speed rail resonance interval according to the received receiving signal under the condition that the UE is determined to be in a high-speed rail scene; the first processing unit is used for processing the frequency offset estimation value under the condition that the UE is in a high-speed rail resonance interval, and estimating channel parameters in a high-speed rail scene according to the processed frequency offset estimation value.

According to still another aspect of the embodiment of the present invention, there is further provided a computer readable storage medium, where the computer readable storage medium includes a stored program, and when the program runs, the device in which the computer readable storage medium is controlled to execute any one of the processing methods of the high-speed rail resonance interval.

According to still another aspect of the embodiment of the present invention, there is also provided a user equipment, including: 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 including a processing method for executing any one of the high-speed rail resonance intervals.

In the embodiment of the invention, under the condition that the UE is in a high-speed rail scene, determining whether the UE is currently in a high-speed rail resonance interval according to a received signal currently received by the UE; and under the condition that the UE is determined to be currently in the high-speed rail resonance interval, estimating the channel parameters of the high-speed rail scene through the processed frequency offset estimated value. Compared with the prior art that when the UE is in the high-speed rail resonance zone, the fixed Doppler frequency shift is adopted to estimate the channel parameters of the UE in the high-speed rail scene, the method and the device have the advantages that the frequency offset estimated value is processed under the condition that the UE is determined to be in the high-speed rail resonance zone, and the channel parameters of the UE in the high-speed rail scene are estimated according to the processed frequency offset estimated value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poor, and the communication quality of the UE is influenced are solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 is a flow chart illustrating a method of processing a high-speed rail resonance interval in accordance with one embodiment of the present application;

FIG. 2 is a schematic view showing the structure of a processing apparatus for a high-speed rail resonance section according to an embodiment of the present application;

fig. 3 shows a flow chart of a processing scheme of a high-speed rail resonance section according to a specific embodiment of the present application.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As described in the background art, in the prior art, the robustness of the processing strategy of the UE in the high-speed rail resonance interval is poor, and the communication quality of the UE is affected. In order to solve the above problems, in an exemplary embodiment of the present application, a method, an apparatus, a computer-readable storage medium, and a user device for processing a high-speed rail resonance section are provided.

According to an embodiment of the application, a method for processing a high-speed rail resonance interval is provided.

Fig. 1 is a flowchart of a processing method of a high-speed rail resonance section according to an embodiment of the present application. The above processing method is applied in the UE, as shown in fig. 1, and includes the following steps:

step S101, under the condition that the UE is determined to be in a high-speed rail scene, determining whether the UE is in a high-speed rail resonance interval according to the received receiving signal;

step S102, when the UE is in a high-speed rail resonance interval, processing the frequency offset estimation value, and estimating channel parameters in a high-speed rail scene according to the processed frequency offset estimation value.

In the processing method of the high-speed rail resonance interval, under the condition that the UE is in the high-speed rail scene, determining whether the UE is currently in the high-speed rail resonance interval according to the received signal currently received by the UE; and under the condition that the UE is determined to be currently in the high-speed rail resonance interval, estimating the channel parameters of the high-speed rail scene through the processed frequency offset estimated value. Compared with the prior art that when the UE is in the high-speed rail resonance zone, the fixed Doppler frequency shift is adopted to estimate the channel parameters of the UE in the high-speed rail scene, the method and the device have the advantages that the frequency offset estimated value is processed under the condition that the UE is determined to be in the high-speed rail resonance zone, and the channel parameters of the UE in the high-speed rail scene are estimated according to the processed frequency offset estimated value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poor, and the communication quality of the UE is influenced are solved.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.

In the actual application process, in a high-speed railway multi-base station scene, when a train runs to the middle of two base stations, signals of adjacent base stations can reach the UE at the same time, and the UE receives receiving signals with opposite frequency deviation and same time delay. Because the time domain channel impulse responses of the signals of two adjacent base stations completely coincide, the UE cannot correctly pass through the time domain channel impulse responses to estimate the frequency offset estimation value and Doppler frequency shift of the signals of the two base stations. The above scenario is commonly referred to as a high-speed rail resonance interval. Based on the specificity of the received signal received by the UE in the high-speed rail resonance interval, in an embodiment of the present application, the step S101 may be further implemented through steps S1011, S1012, and S1013. Step S1011, when the received signal is successfully clustered, determining two paths of clusters with maximum energy obtained by clustering as a first path cluster and a second path cluster respectively, wherein the energy of the second path cluster is smaller than that of the first path cluster; step S1012: determining the energy difference between the first diameter cluster and the second diameter cluster to obtain a first energy difference; step S1013: and determining whether the UE is in a high-speed rail resonance interval according to the first energy difference and at least one of the first delay difference and the frequency offset estimation value of the second path cluster, wherein the first delay difference is a delay difference between the first path cluster and the second path cluster. Therefore, whether the UE is in the high-speed rail resonance interval or not is accurately determined, the frequency offset estimation value is processed in the case that the UE is in the high-speed rail resonance interval, and channel parameter estimation in a high-speed rail scene is performed according to the processed frequency offset estimation value, so that better communication quality of the UE is further ensured, and the problems of confusion of AFC adjustment and large Doppler frequency shift estimation of the UE in the high-speed rail resonance interval are further avoided.

In practical application, it receives coincident received signals from different base stations and different channels for the UE. Thus, the received signals may be clustered, i.e., may be clustered for the channels corresponding to the received signals.

In a specific implementation process, the step S1013 may be further implemented by the following steps: determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than a first energy threshold and the first time delay difference is smaller than a first time delay threshold; or determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than the first energy threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value; or determining that the UE is in a high-speed railway resonance section when the first energy difference is smaller than a first energy threshold, the first delay difference is smaller than the first delay threshold, and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value. In this embodiment, under the condition that any one of the above situations is satisfied, it is determined that the UE is in the high-speed rail resonance zone, that is, whether the UE is in the high-speed rail resonance zone is determined by relatively loose determination conditions, so that it is ensured that whether the UE is in the high-speed rail resonance zone can be determined in time. And whether the UE is in a high-speed rail resonance interval or not is determined by a plurality of judging methods, so that the judging method of the application can be suitable for various scenes, namely, the universality is good.

In the practical application process, the frequency offset estimation value of the second path cluster approaches to the frequency offset estimation limit value, that is, the difference value between the frequency offset estimation value of the second path cluster and the frequency offset estimation limit value is smaller than a preset threshold value.

Specifically, in the above embodiment, the magnitudes of the first energy threshold, the first delay threshold, and the frequency offset estimation limit value may be flexibly set according to the actual scenario, and the magnitudes of the first energy threshold, the first delay threshold, and the frequency offset estimation limit value are not specifically limited in the present application.

In some implementations, the step S102 may be further implemented by the following steps: adjusting an AFC (automatic frequency calibration, auto Frequency Calibration, abbreviated as AFC) adjustment threshold, and performing compensation processing on a plurality of path clusters obtained by clustering based on received signals based on an automatic frequency calibration AFC algorithm and the adjusted AFC adjustment threshold to obtain frequency offset estimated values of the path clusters after the compensation processing; performing back-inversion processing on the frequency offset estimation value of each path cluster after compensation processing to obtain the frequency offset estimation value of each path cluster after back-inversion processing; estimating channel parameters in a high-speed rail scene based on Doppler frequency shift of each path cluster and the corresponding frequency offset estimated value after the return processing; and/or, under the condition that the received signals cannot be successfully clustered, estimating channel parameters in a high-speed railway scene based on the Doppler frequency shift of each path cluster obtained last time and the processed frequency offset estimation value. In this embodiment, the AFC adjustment threshold is adjusted, so that by limiting the adjustment amount of the frequency offset estimation value in the high-speed rail resonance interval, the frequency offset estimation value of each path cluster after compensation processing is avoided from exceeding the frequency offset estimation limit value after compensation processing is performed on each path cluster by the AFC algorithm. In addition, after the compensation processing is performed on each path cluster based on the automatic frequency calibration AFC algorithm and the adjusted AFC adjustment threshold value, the obtained frequency offset estimated value of each path cluster after the compensation processing is possibly beyond the frequency offset estimated limit value, so the frequency offset estimated value of each path cluster after the compensation processing is subjected to the reverse processing, and the situation that the frequency offset estimated value of a certain path cluster cannot be subjected to the frequency offset estimation is avoided.

In a specific embodiment of the present application, if the difference between the current obtained doppler shift and the last obtained doppler shift is large, the last obtained doppler shift may be used to estimate the channel parameters of the high-speed rail scene. This further avoids the problem of a larger doppler shift estimate.

In another specific embodiment of the present application, when the UE is in the high-speed rail resonance interval, if the received signal received by the UE can be successfully clustered, an AFC algorithm and an AFC adjustment threshold value can be adopted to perform compensation processing on each path cluster. If two diameter clusters are 1500Hz and-1500 Hz, respectively. If 1500Hz compensation is performed on the two radial clusters, two radial clusters of 3000Hz and 0Hz can be obtained. However, since the 3000Hz diameter cluster exceeds the frequency offset estimation value, the two diameter clusters of 3000Hz and 0Hz are required to be subjected to the back-up processing, so that the possibility that the frequency offset estimation value of each diameter cluster after the compensation processing exceeds the frequency offset estimation limit value is avoided.

In order to more accurately determine whether the UE leaves the high-speed rail resonance interval, and further ensure that the communication quality of the UE is better within a period of time when the UE leaves the high-speed rail resonance interval, the processing method of the present application further includes step S103, step S104 and step S105. Step S103 described above: when the UE is in a high-speed rail resonance interval, processing a frequency offset estimation value, estimating channel parameters in a high-speed rail scene according to the processed frequency offset estimation value, and determining two path clusters with largest energy obtained by clustering as a third path cluster and a fourth path cluster under the condition that the received signals are successfully clustered, wherein the energy of the fourth path cluster is smaller than that of the third path cluster; step S104: determining an energy difference between the third-diameter cluster and the fourth-diameter cluster to obtain a second energy difference; step S105: and determining that the UE leaves the high-speed rail resonance interval under the condition that the second energy difference is larger than a second energy threshold value, the second delay difference is larger than a second delay threshold value and the duration that the frequency deviation estimated value of the fourth-path cluster is smaller than the frequency deviation estimated limit value is larger than the first preset time, wherein the second delay difference is the delay difference between the third-path cluster and the fourth-path cluster.

In the processing method of the high-speed rail resonance interval, the condition for determining whether the UE is in the high-speed rail resonance interval is as follows: determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than a first energy threshold and the first time delay difference is smaller than a first time delay threshold; or determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than the first energy threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value; or determining that the UE is in a high-speed railway resonance section when the first energy difference is smaller than a first energy threshold, the first delay difference is smaller than the first delay threshold, and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value. The conditions for determining whether the UE leaves the high-speed rail resonance interval are: and determining that the UE leaves the high-speed rail resonance interval under the condition that the second energy difference is larger than a second energy threshold value, the second delay difference is larger than a second delay threshold value and the duration that the frequency deviation estimated value of the fourth-path cluster is smaller than the frequency deviation estimated limit value is larger than the first preset time, wherein the second delay difference is the delay difference between the third-path cluster and the fourth-path cluster. That is, the present application sets a relatively loose condition to determine whether the UE is in the high-speed rail resonance zone, and a relatively strict condition to determine whether the UE is out of the high-speed rail resonance zone, i.e., whether the UE is in the high-speed rail resonance zone and out of the high-speed rail resonance zone, respectively, by the "fast-forward and slow-out" criteria. Therefore, whether the UE is in the high-speed rail resonance interval or not and whether the UE is away from the high-speed rail resonance interval or not is ensured, the communication quality of the UE is good as a whole no matter whether the UE is in the high-speed rail resonance interval or not, and the use experience of a user is good.

In the practical application process, the second energy threshold, the second time delay threshold, the frequency offset estimation limit value and the first preset time can be flexibly set according to the practical scene, and the sizes of the second energy threshold, the second time delay threshold, the frequency offset estimation limit value and the first preset time are not particularly limited in the application.

In some embodiments, the step S101 may be further implemented by the following steps: determining that the UE is in a high-speed scene under the condition that the signal-to-noise ratio of the received signal is greater than a first signal-to-noise ratio threshold, the current Doppler frequency shift is greater than a Doppler frequency shift threshold and/or the current frequency offset estimation value is greater than a frequency offset estimation limit value; and under the condition that the UE is in a high-speed scene and the received signals are successfully clustered, determining that the UE is in a high-speed scene. In the actual application process, in the high-speed railway multi-base station scene, when a train runs to the middle of two base stations, signals of adjacent base stations can reach the UE at the same time, and the UE receives the received signals with opposite frequency offset and same delay, so that whether the UE is in the high-speed railway scene can be determined by whether the received signals are successfully clustered, thereby realizing more accurate and simple determination of whether the UE is in the high-speed railway scene, ensuring smaller calculated amount of the UE side and not affecting the overall performance of the UE side.

In an actual application process, if the signal-to-noise ratio of the received signal is greater than a first signal-to-noise ratio threshold and the current doppler shift is greater than a doppler shift threshold, determining that the UE is in a high-speed scene. And under the condition that the signal-to-noise ratio of the received signal is larger than a first signal-to-noise ratio threshold and the current frequency offset estimation value is larger than a frequency offset estimation limit value, determining that the UE is in a high-speed scene. And determining that the UE is in a high-speed scene under the condition that the signal-to-noise ratio of the received signal is greater than a first signal-to-noise ratio threshold, the current Doppler frequency shift is greater than a Doppler frequency shift threshold and the current frequency offset estimation value is greater than a frequency offset estimation limit value.

Specifically, the first signal-to-noise ratio threshold, the doppler shift threshold and the frequency offset estimation limit value can be flexibly adjusted according to an actual application scene. In the application, the specific values of the first signal-to-noise ratio threshold value, the Doppler frequency shift threshold value and the frequency offset estimation limit value are not limited.

In order to further ensure that the communication quality of the UE is better, in one embodiment, the processing method of the present application includes step S106 and step S107. Step S106, after determining that the UE leaves the high-speed rail resonance interval, performs channel parameter estimation in the non-high-speed rail scene based on the received signal if a preset condition is satisfied, where the preset condition is: the duration of the failure to cluster the received signal is longer than a second preset time, and/or the duration of the failure to cluster the received signal, in which the signal to noise ratio of the received signal is smaller than a second signal to noise ratio threshold, is longer than the second preset time; in step S107, if the above-mentioned preset condition is not satisfied, it is determined whether the UE is in the high-speed rail resonance section based on the received reception signal again.

Specifically, the specific value of the second preset time can be flexibly adjusted according to the actual application scenario. In the present application, the magnitude of the second preset time is not limited.

The embodiment of the application also provides a processing device for the high-speed rail resonance interval, and the processing device for the high-speed rail resonance interval can be used for executing the processing method for the high-speed rail resonance interval. The following describes a processing device for a resonance section of a high-speed rail provided by an embodiment of the present application.

Fig. 2 is a schematic structural view of a processing apparatus for a high-speed rail resonance section according to an embodiment of the present application. As shown in fig. 2, the processing apparatus includes:

a first determining unit 10, configured to determine, according to a received reception signal, whether the UE is in a high-speed rail resonance interval, in a case where the UE is determined to be in a high-speed rail scene;

the first processing unit 20 is configured to process the frequency offset estimation value when the UE is in the high-speed rail resonance interval, and perform channel parameter estimation in the high-speed rail scene according to the processed frequency offset estimation value.

In the processing device for a high-speed rail resonance interval, the first determining unit is configured to determine, when the UE is in a high-speed rail scene, whether the UE is currently in the high-speed rail resonance interval according to a received signal currently received by the UE; the first processing unit is used for estimating channel parameters of the high-speed railway scene through the processed frequency offset estimation value under the condition that the UE is determined to be in the high-speed railway resonance interval currently. Compared with the prior art that when the UE is in the high-speed rail resonance zone, the fixed Doppler frequency shift is adopted to estimate the channel parameters of the UE in the high-speed rail scene, the method and the device have the advantages that the frequency offset estimated value is processed under the condition that the UE is determined to be in the high-speed rail resonance zone, and the channel parameters of the UE in the high-speed rail scene are estimated according to the processed frequency offset estimated value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poor, and the communication quality of the UE is influenced are solved.

In the actual application process, in a high-speed railway multi-base station scene, when a train runs to the middle of two base stations, signals of adjacent base stations can reach the UE at the same time, and the UE receives receiving signals with opposite frequency deviation and same time delay. Because the time domain channel impulse responses of the signals of two adjacent base stations completely coincide, the UE cannot correctly pass through the time domain channel impulse responses to estimate the frequency offset estimation value and Doppler frequency shift of the signals of the two base stations. The above scenario is commonly referred to as a high-speed rail resonance interval. Based on the specificity of the received signal received by the UE in the high-speed rail resonance interval, in one embodiment of the present application, the first determining unit includes a first determining module, a second determining module, and a third determining module. The first determining module is configured to determine, when the received signal is successfully clustered, two clusters with the largest energy obtained by clustering as a first cluster and a second cluster, where the energy of the second cluster is smaller than that of the first cluster; the second determining module is configured to determine an energy difference between the first path cluster and the second path cluster, so as to obtain a first energy difference; the third determining module is configured to determine whether the UE is in a high-speed rail resonance interval according to the first energy difference and at least one of the first delay difference and the frequency offset estimation value of the second path cluster, where the first delay difference is a delay difference between the first path cluster and the second path cluster. Therefore, whether the UE is in the high-speed rail resonance interval or not is accurately determined, the frequency offset estimation value is processed in the case that the UE is in the high-speed rail resonance interval, and channel parameter estimation in a high-speed rail scene is performed according to the processed frequency offset estimation value, so that better communication quality of the UE is further ensured, and the problems of confusion of AFC adjustment and large Doppler frequency shift estimation of the UE in the high-speed rail resonance interval are further avoided.

In a specific implementation process, the third determining module includes a first determining sub-module, a second determining sub-module, or a third determining sub-module. The first determining submodule is used for determining that the UE is in a high-speed rail resonance interval when the first energy difference is smaller than a first energy threshold and the first delay difference is smaller than a first delay threshold; or the second determining submodule is used for determining that the UE is in a high-speed railway resonance interval under the condition that the first energy difference is smaller than the first energy threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value; or the third determining submodule is used for determining that the UE is in the high-speed railway resonance interval when the first energy difference is smaller than a first energy threshold, the first time delay difference is smaller than the first time delay threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value. In this embodiment, under the condition that any one of the above situations is satisfied, it is determined that the UE is in the high-speed rail resonance zone, that is, whether the UE is in the high-speed rail resonance zone is determined by relatively loose determination conditions, so that it is ensured that whether the UE is in the high-speed rail resonance zone can be determined in time. And whether the UE is in a high-speed rail resonance interval or not is determined by a plurality of judging methods, so that the judging method of the application can be suitable for various scenes, namely, the universality is good.

In some implementations, the first processing unit further includes an adjustment module, a back processing module, and a first estimation module, and/or a second estimation module. The adjusting module is used for adjusting an AFC (automatic frequency calibration, auto Frequency Calibration, abbreviated as AFC) adjusting threshold value, and performing compensation processing on a plurality of path clusters obtained by clustering based on received signals based on an automatic frequency calibration AFC algorithm and the adjusted AFC adjusting threshold value to obtain frequency offset estimated values of the path clusters after the compensation processing; the return processing module is used for carrying out return processing on the frequency offset estimated value of each path cluster after compensation processing to obtain the frequency offset estimated value of each path cluster after return processing; the first estimation module is used for estimating channel parameters in a high-speed railway scene based on Doppler frequency shift of each path cluster and the corresponding frequency offset estimation value after the return processing; and/or the second estimation module is used for estimating channel parameters in a high-speed railway scene based on the Doppler frequency shift of each path cluster obtained last time and the processed frequency offset estimation value under the condition that the received signals cannot be successfully clustered. In this embodiment, the AFC adjustment threshold is adjusted, so that by limiting the adjustment amount of the frequency offset estimation value in the high-speed rail resonance interval, the frequency offset estimation value of each path cluster after compensation processing is avoided from exceeding the frequency offset estimation limit value after compensation processing is performed on each path cluster by the AFC algorithm. In addition, after the compensation processing is performed on each path cluster based on the automatic frequency calibration AFC algorithm and the adjusted AFC adjustment threshold value, the obtained frequency offset estimated value of each path cluster after the compensation processing is possibly beyond the frequency offset estimated limit value, so the frequency offset estimated value of each path cluster after the compensation processing is subjected to the reverse processing, and the situation that the frequency offset estimated value of a certain path cluster cannot be subjected to the frequency offset estimation is avoided.

In order to accurately determine whether the UE leaves the high-speed rail resonance interval or not, and further ensure that the communication quality of the UE is good within a period of time when the UE leaves the high-speed rail resonance interval, the processing device further comprises a second determining unit, a third determining unit and a fourth determining unit. The second determining unit is configured to process the frequency offset estimation value when the UE is in a high-speed rail resonance interval, and determine, after performing channel parameter estimation in a high-speed rail scene according to the processed frequency offset estimation value, two path clusters with maximum energy obtained by clustering as a third path cluster and a fourth path cluster when the received signal is successfully clustered, where the energy of the fourth path cluster is smaller than that of the third path cluster; the third determining unit is configured to determine an energy difference between the third cluster and the fourth cluster, to obtain a second energy difference; the fourth determining unit is configured to determine that the UE leaves the high-speed rail resonance interval when the second energy difference is greater than a second energy threshold, the second delay difference is greater than a second delay threshold, and a duration of time when the frequency offset estimation value of the fourth path cluster is lower than the frequency offset estimation limit value is greater than a first preset time, where the second delay difference is a delay difference between the third path cluster and the fourth path cluster.

In the processing device for the high-speed rail resonance interval of the application, the conditions for determining whether the UE is in the high-speed rail resonance interval are as follows: determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than a first energy threshold and the first time delay difference is smaller than a first time delay threshold; or determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than the first energy threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value; or determining that the UE is in a high-speed railway resonance section when the first energy difference is smaller than a first energy threshold, the first delay difference is smaller than the first delay threshold, and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value. The conditions for determining whether the UE leaves the high-speed rail resonance interval are: and determining that the UE leaves the high-speed rail resonance interval under the condition that the second energy difference is larger than a second energy threshold value, the second delay difference is larger than a second delay threshold value and the duration that the frequency deviation estimated value of the fourth-path cluster is smaller than the frequency deviation estimated limit value is larger than the first preset time, wherein the second delay difference is the delay difference between the third-path cluster and the fourth-path cluster. That is, the present application sets a relatively loose condition to determine whether the UE is in the high-speed rail resonance zone, and a relatively strict condition to determine whether the UE is out of the high-speed rail resonance zone, i.e., whether the UE is in the high-speed rail resonance zone and out of the high-speed rail resonance zone, respectively, by the "fast-forward and slow-out" criteria. Therefore, whether the UE is in the high-speed rail resonance interval or not and whether the UE is away from the high-speed rail resonance interval or not is ensured, the communication quality of the UE is good as a whole no matter whether the UE is in the high-speed rail resonance interval or not, and the use experience of a user is good.

In some embodiments, the first determining unit further includes a fourth determining module and a fifth determining module. The fourth determining module is configured to determine that the UE is in a high-speed scenario when a signal-to-noise ratio of the received signal is greater than a first signal-to-noise ratio threshold, and a current doppler shift is greater than a doppler shift threshold and/or a current frequency offset estimation value is greater than a frequency offset estimation limit value; the fifth determining module is configured to determine that the UE is in a high-speed scenario when the UE is in a high-speed scenario and the received signal is successfully clustered. In the actual application process, in the high-speed railway multi-base station scene, when a train runs to the middle of two base stations, signals of adjacent base stations can reach the UE at the same time, and the UE receives the received signals with opposite frequency offset and same delay, so that whether the UE is in the high-speed railway scene can be determined by whether the received signals are successfully clustered, thereby realizing more accurate and simple determination of whether the UE is in the high-speed railway scene, ensuring smaller calculated amount of the UE side and not affecting the overall performance of the UE side.

In order to further ensure that the communication quality of the UE is better, in one embodiment, the processing apparatus of the present application further includes a parameter estimation unit and a fifth determination unit. The parameter estimation unit is configured to perform channel parameter estimation in a non-high-speed rail scene based on a received signal when a preset condition is satisfied after determining that the UE leaves the high-speed rail resonance interval, where the preset condition is: the duration of the failure to cluster the received signal is longer than a second preset time, and/or the duration of the failure to cluster the received signal, in which the signal to noise ratio of the received signal is smaller than a second signal to noise ratio threshold, is longer than the second preset time; the fifth determining unit is configured to determine, if the preset condition is not satisfied, whether the UE is in the high-speed rail resonance section based on the received reception signal again.

The processing device for the high-speed rail resonance interval comprises a processor and a memory, wherein the first determining unit, the first processing unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.

The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The kernel can be provided with one or more than one kernel, and the problems that the robustness of a processing strategy of the UE in a high-speed rail resonance interval is poor and the communication quality of the UE is influenced in the prior art are solved by adjusting kernel parameters.

The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.

The embodiment of the application provides a computer readable storage medium, on which a program is stored, which when executed by a processor, implements the method for processing a resonance interval of a high-speed rail.

The embodiment of the application provides a processor which is used for running a program, wherein the processing method of the high-speed rail resonance interval is executed when the program runs.

In an exemplary embodiment of the present application, there is also provided a user equipment including: the system comprises 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, and the one or more programs comprise a processing method for executing any one of the high-speed rail resonance intervals.

The ue may perform any one of the above-described processing methods for the high-speed rail resonance interval. In the processing method, under the condition that the UE is in a high-speed railway scene, determining whether the UE is currently in a high-speed railway resonance interval according to a received signal currently received by the UE; and under the condition that the UE is determined to be currently in the high-speed rail resonance interval, estimating the channel parameters of the high-speed rail scene through the processed frequency offset estimated value. Compared with the prior art that when the UE is in the high-speed rail resonance zone, the fixed Doppler frequency shift is adopted to estimate the channel parameters of the UE in the high-speed rail scene, the method and the device have the advantages that the frequency offset estimated value is processed under the condition that the UE is determined to be in the high-speed rail resonance zone, and the channel parameters of the UE in the high-speed rail scene are estimated according to the processed frequency offset estimated value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poor, and the communication quality of the UE is influenced are solved.

The embodiment of the application provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes at least the following steps when executing the program:

The device herein may be a server, PC, PAD, cell phone, etc.

The application also provides a computer program product adapted to perform, when executed on a data processing device, a program initialized with at least the following method steps:

In order that the technical solution of the present application may be more clearly understood by those skilled in the art, the technical solution and technical effects of the present application will be described below with reference to specific embodiments.

Examples

In a specific embodiment of the present application, a processing scheme of a high-speed rail resonance interval is also provided, and specifically shown in fig. 3. The treatment scheme of the high-speed rail resonance interval specifically comprises the following steps:

step S1: the signal-to-noise ratio of the received signal received by the UE is greater than a first signal-to-noise ratio threshold (i.e. SNRFD > TH 1) and the current Doppler frequency shift is greater than a Doppler frequency shift threshold (i.e. Doppler > TH 2), or the signal-to-noise ratio of the received signal is greater than a first signal-to-noise ratio threshold (i.e. SNRFD > TH 1) and the current frequency shift estimate is greater than a frequency shift estimate limit (FOE > TH 3), or the signal-to-noise ratio of the received signal is greater than a first signal-to-noise ratio threshold (i.e. SNRFD > TH 1) and the current Doppler frequency shift is greater than a Doppler frequency shift threshold (i.e. Doppler > TH 2) and the current frequency shift estimate is greater than a frequency shift estimate limit (FOE > TH 3), and the UE is determined to be in a high-speed scenario.

Step S2: and determining whether the received signals received by the UE are successfully clustered when the UE is in a high-speed scene.

Step S3: and under the condition that the UE is in a high-speed scene and the received signals are successfully clustered, determining that the UE is in a high-speed scene.

Step S4: in the case where the UE device is in a high-speed train scenario, for example, in the middle of a train traveling to two base stations, i.e., the UE device is in the middle of two base stations. Clustering processing is carried out on a received signal received by the UE, and two path clusters with the largest energy obtained by clustering are respectively determined to be a first path cluster and a second path cluster. Determining the energy difference between the first diameter cluster and the second diameter cluster to obtain a first energy difference; and determining the time delay difference between the first path cluster and the second path cluster to obtain a first time delay difference.

Step S5: in the case that the first energy difference is smaller than the first energy threshold (first energy difference < TH 4) and the first delay difference is smaller than the first delay threshold (first delay difference < TH 5), or in the case that the first energy difference is smaller than the first energy threshold (first energy difference < TH 4) and the frequency offset estimation value of the second path cluster approaches the frequency offset estimation limit value, or in the case that the first energy difference is smaller than the first energy threshold (first energy difference < TH 4), the first delay difference is smaller than the first delay threshold (first delay difference < TH 5) and the frequency offset estimation value of the second path cluster approaches the frequency offset estimation limit value, it is determined that the UE is in the high-speed rail resonance section.

Step S6: adjusting an AFC adjustment threshold value, and performing compensation processing on a plurality of path clusters obtained by clustering based on the received signals based on an automatic frequency calibration AFC algorithm and the adjusted AFC adjustment threshold value to obtain frequency offset estimation values of the path clusters after the compensation processing; performing back-inversion processing on the frequency offset estimation value of each path cluster after compensation processing to obtain the frequency offset estimation value of each path cluster after back-inversion processing; estimating channel parameters in a high-speed rail scene based on Doppler frequency shift of each path cluster and corresponding frequency offset estimated values after back processing; and/or under the condition that the received signals cannot be successfully clustered, estimating channel parameters in a high-speed railway scene based on the Doppler frequency shift of each path cluster obtained last time and the processed frequency offset estimated value.

Step S7: under the condition that the received signals are successfully clustered, determining two paths of clusters with the largest energy obtained by clustering as a third path of cluster and a fourth path of cluster; and determining the energy difference between the third-path cluster and the fourth-path cluster to obtain a second energy difference.

Step S8: and under the condition that the second energy difference is larger than a second energy threshold (the second energy difference is larger than TH 6), the second time delay difference is larger than a second time delay threshold (the second time delay difference is larger than TH 7), and the duration that the frequency offset estimated value of the fourth-path cluster is lower than the frequency offset estimated limit value is larger than the first preset time (TH 8), determining that the UE leaves the high-speed rail resonance interval.

Step S9: under the condition that the UE leaves the high-speed rail resonance interval, the duration time of the received signal which cannot be successfully clustered is longer than a second preset time (TH 10), and/or the duration time of the received signal with a signal-to-noise ratio smaller than a second signal-to-noise ratio threshold (TH 9) is longer than the second preset time (TH 10), and channel parameter estimation under a non-high-speed rail scene is carried out based on the received signal; in case any one of the above is not satisfied, it is determined whether the UE is in the high-speed rail resonance section based again on the received reception signal.

In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.

In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units may be a logic function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one first processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned method of the various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

1) In the processing method of the high-speed rail resonance interval, under the condition that the UE is in a high-speed rail scene, whether the UE is in the high-speed rail resonance interval currently is determined according to the received signal currently received by the UE; and under the condition that the UE is determined to be currently in the high-speed rail resonance interval, estimating the channel parameters of the high-speed rail scene through the processed frequency offset estimated value. Compared with the prior art that when the UE is in the high-speed rail resonance zone, the fixed Doppler frequency shift is adopted to estimate the channel parameters of the UE in the high-speed rail scene, the method and the device have the advantages that the frequency offset estimated value is processed under the condition that the UE is determined to be in the high-speed rail resonance zone, and the channel parameters of the UE in the high-speed rail scene are estimated according to the processed frequency offset estimated value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poor, and the communication quality of the UE is influenced are solved.

2) In the processing device of the high-speed rail resonance interval, the first determining unit is used for determining whether the UE is currently in the high-speed rail resonance interval according to the received signal currently received by the UE under the condition that the UE is in the high-speed rail scene; the first processing unit is used for estimating channel parameters of the high-speed railway scene through the processed frequency offset estimation value under the condition that the UE is determined to be in the high-speed railway resonance interval currently. Compared with the prior art that when the UE is in the high-speed rail resonance zone, the fixed Doppler frequency shift is adopted to estimate the channel parameters of the UE in the high-speed rail scene, the method and the device have the advantages that the frequency offset estimated value is processed under the condition that the UE is determined to be in the high-speed rail resonance zone, and the channel parameters of the UE in the high-speed rail scene are estimated according to the processed frequency offset estimated value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poor, and the communication quality of the UE is influenced are solved.

3) The user equipment of the present application can execute any one of the above-mentioned processing methods of the high-speed rail resonance interval. In the processing method, under the condition that the UE is in a high-speed railway scene, determining whether the UE is currently in a high-speed railway resonance interval according to a received signal currently received by the UE; and under the condition that the UE is determined to be currently in the high-speed rail resonance interval, estimating the channel parameters of the high-speed rail scene through the processed frequency offset estimated value. Compared with the prior art that when the UE is in the high-speed rail resonance zone, the fixed Doppler frequency shift is adopted to estimate the channel parameters of the UE in the high-speed rail scene, the method and the device have the advantages that the frequency offset estimated value is processed under the condition that the UE is determined to be in the high-speed rail resonance zone, and the channel parameters of the UE in the high-speed rail scene are estimated according to the processed frequency offset estimated value, so that the accuracy of the parameter estimation of the UE in the high-speed rail resonance zone is ensured, the robustness of the processing strategy of the UE in the high-speed rail resonance zone is higher, the signal quality of the UE in the high-speed rail resonance zone is better, the performance of the UE in a period of leaving the high-speed rail resonance zone is improved, and the problems that the robustness of the processing strategy of the UE in the high-speed rail resonance zone in the prior art is poor, and the communication quality of the UE is influenced are solved.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for processing a high-speed rail resonance interval, which is applied to user equipment UE, comprising:

under the condition that the UE is determined to be in a high-speed rail scene, determining whether the UE is in a high-speed rail resonance interval according to the received receiving signal;

and under the condition that the UE is in a high-speed rail resonance interval, processing the frequency offset estimation value, and estimating channel parameters in a high-speed rail scene according to the processed frequency offset estimation value.

2. The processing method according to claim 1, wherein in the case of determining that the UE is in a high-speed rail scenario, determining whether the UE is in a high-speed rail resonance interval according to the received reception signal comprises:

under the condition that the received signals are successfully clustered, two paths of clusters with the largest energy obtained by clustering are respectively determined to be a first path of cluster and a second path of cluster, and the energy of the second path of cluster is smaller than that of the first path of cluster;

Determining the energy difference between the first diameter cluster and the second diameter cluster to obtain a first energy difference;

and determining whether the UE is in a high-speed rail resonance interval according to the first energy difference and at least one of the first delay difference and the frequency offset estimation value of the second path cluster, wherein the first delay difference is the delay difference between the first path cluster and the second path cluster.

3. The processing method of claim 2, wherein determining whether the UE is in a high-speed rail resonance interval based on the first energy difference and at least one of a first delay difference and a frequency offset estimate of the second path cluster, comprises:

determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than a first energy threshold and the first time delay difference is smaller than a first time delay threshold;

or alternatively, the process may be performed,

determining that the UE is in a high-speed rail resonance interval under the condition that the first energy difference is smaller than the first energy threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value;

or alternatively, the process may be performed,

and determining that the UE is in a high-speed railway resonance interval under the condition that the first energy difference is smaller than a first energy threshold, the first time delay difference is smaller than the first time delay threshold and the frequency offset estimation value of the second path cluster is close to the frequency offset estimation limit value.

4. The processing method according to claim 1, wherein when the UE is in a high-speed rail resonance zone, processing the frequency offset estimation value, and performing channel parameter estimation in a high-speed rail scene according to the processed frequency offset estimation value, includes:

adjusting an AFC adjustment threshold value, and performing compensation processing on a plurality of path clusters obtained by clustering based on a received signal based on an automatic frequency calibration AFC algorithm and the adjusted AFC adjustment threshold value to obtain a frequency offset estimation value of each path cluster after the compensation processing;

performing back-inversion processing on the frequency offset estimation value of each path cluster after compensation processing to obtain the frequency offset estimation value of each path cluster after back-inversion processing;

estimating channel parameters in a high-speed rail scene based on Doppler frequency shift of each path cluster and the corresponding frequency offset estimated value after the return processing;

and/or the number of the groups of groups,

and under the condition that the received signals cannot be successfully clustered, estimating channel parameters in a high-speed railway scene based on the Doppler frequency shift of each path cluster obtained last time and the processed frequency offset estimated value.

5. The processing method according to claim 1, wherein when the UE is in a high-speed rail resonance zone, the processing method further comprises, after processing the frequency offset estimation value and performing channel parameter estimation in a high-speed rail scenario according to the processed frequency offset estimation value:

Under the condition that the received signals are successfully clustered, determining two paths of clusters with maximum energy obtained by clustering as a third path of cluster and a fourth path of cluster, wherein the energy of the fourth path of cluster is smaller than that of the third path of cluster;

determining the energy difference between the third-diameter cluster and the fourth-diameter cluster to obtain a second energy difference;

and under the condition that the second energy difference is larger than a second energy threshold value, the second time delay difference is larger than a second time delay threshold value, and the duration that the frequency offset estimated value of the fourth-path cluster is lower than the frequency offset estimated limit value is larger than the first preset time, determining that the UE leaves the high-speed rail resonance interval, wherein the second time delay difference is the time delay difference between the third-path cluster and the fourth-path cluster.

6. The processing method according to any one of claims 1 to 5, wherein the process of determining that the UE is in the high-speed rail scene comprises:

determining that the UE is in a high-speed scene under the condition that the signal-to-noise ratio of the received signal is larger than a first signal-to-noise ratio threshold value, the current Doppler frequency shift is larger than a Doppler frequency shift threshold value and/or the current frequency offset estimation value is larger than a frequency offset estimation limit value;

and under the condition that the UE is in a high-speed scene and the received signals are successfully clustered, determining that the UE is in a high-speed scene.

7. The processing method of claim 5, wherein after determining that the UE leaves the high-speed rail resonance interval, the processing method further comprises:

under the condition that a preset condition is met, estimating channel parameters in a non-high-speed rail scene based on a received signal, wherein the preset condition is as follows: the duration of the failure to cluster the received signal is longer than a second preset time, and/or the duration of the failure to cluster the received signal is longer than the second preset time;

and under the condition that the preset condition is not met, determining whether the UE is in a high-speed rail resonance interval or not based on the received receiving signal again.

8. A processing apparatus for a high-speed rail resonance interval, the processing apparatus being applied in a user equipment UE, comprising:

the first determining unit is used for determining whether the UE is in a high-speed rail resonance interval according to the received receiving signal under the condition that the UE is determined to be in a high-speed rail scene;

the first processing unit is used for processing the frequency offset estimation value under the condition that the UE is in a high-speed rail resonance interval, and estimating channel parameters in a high-speed rail scene according to the processed frequency offset estimation value.

9. A computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein the program, when run, controls a device in which the computer-readable storage medium is located to execute the processing method of the high-speed rail resonance section according to any one of claims 1 to 7.

10. A user 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 processing method for performing the high-speed rail resonance interval of any one of claims 1-7.