CN107027144A

CN107027144A - A kind of high-speed mobile scene detection method and device

Info

Publication number: CN107027144A
Application number: CN201610069619.7A
Authority: CN
Inventors: 董文佳; 阮航; 曹蕾
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2016-02-01
Filing date: 2016-02-01
Publication date: 2017-08-08

Abstract

The embodiment of the invention discloses a kind of high-speed mobile scene detection method, including：The parameter of at least one transmission path of terminal received signals is obtained in real time；When the parameter of at least one transmission path of acquired terminal received signals meets default high-speed mobile scene judgment condition, determine that terminal is currently at high-speed mobile scene；The embodiment of the invention also discloses a kind of high-speed mobile scene detection means.

Description

High-speed moving scene detection method and device

Technical Field

The invention relates to the field of mobile communication, in particular to a high-speed mobile scene detection method and device.

Background

Long Term Evolution (LTE) is a subsequent Evolution technology of 3rd Generation (3G) mobile communication, and becomes a mainstream new Generation broadband mobile communication standard in the world with unique technical advantages of high data rate, low delay, optimized network architecture, larger carrier bandwidth, and the like.

At present, the construction scale of a high-speed railway is continuously enlarged, and the running speed is also continuously accelerated; the running speed of the high-speed railway in China reaches and exceeds 300km/h, and the running speed of a magnetic suspension train can reach 430 km/h; in order to ensure the coverage quality and performance of a high-speed rail mobile network, a high-speed rail private network coverage mode is usually adopted in a high-speed rail area at present, and a mobile network covering a common low-speed mobile scene can be called a public network relative to a high-speed rail private network; the high-speed railway special network is optimized in terms of a network distribution mode and network parameter configuration aiming at the specific networking requirements of a high-speed railway, and is different from a public network; in order to ensure the communication quality and the user experience of the terminal in a high-speed mobile scene, the high-speed rail private network cell is optimized in terms of network parameters, and meanwhile, the network distribution mode is greatly adjusted; in order to avoid frequent reselection or handover between cells caused by rapid movement of a terminal in a private network for high-speed rail, the private network for high-speed rail adopts a special network deployment mode, such as a Radio Remote Unit (RRU) cascaded strip network deployment mode, to expand the coverage area of a cell and reduce the times of cell reselection or handover.

Here, the public network area is usually a low-speed moving scene, and in scenes such as a high-speed rail private network area, the moving speed of the terminal reaches a set speed threshold, at this time, the scene where the terminal is located is a high-speed moving scene, and the network where the terminal is located is a high-speed moving scene network; the terminal generally adopts a conventional processing mode to process the received signals in a low-speed moving scene such as a public network area, and generally adopts a high-speed scene processing mode to process the received signals in a high-speed moving scene such as a high-speed railway area, so as to ensure the communication quality and the user experience of the high-speed moving terminal; obviously, the terminal needs to correctly and timely judge whether the terminal is in a high-speed moving scene.

At present, a terminal mainly judges whether the terminal is in a high-speed moving scene in the following two ways:

1) the manual configuration mode comprises the following steps: the terminal sets options similar to a 'high-speed rail mode' in a menu, a user needs to manually adjust terminal configuration when taking a high-speed rail for starting the high-speed rail mode, and the terminal adopts a high-speed scene processing mode to perform corresponding optimization processing when starting the high-speed rail mode; the manual configuration mode is simple and easy to realize, but is not convenient and intelligent enough for users, and particularly, the users need to fully know the terminal functions and can timely start the related functions when taking high-speed rails; otherwise, even if the terminal is in a high-speed rail scene, the terminal still adopts a conventional processing mode, which can seriously affect the communication performance and the user experience of the terminal.

2) The automatic detection mode comprises the following steps: the terminal receives network parameters from a network side, and if the received network parameters comprise preset cell parameters for indicating that the terminal is in a high-speed moving scene, the terminal is determined to be in the high-speed moving scene; exemplarily, when the terminal is in the area of the private network for high-speed rail, receiving a high speed flag parameter highspeed flag from the network side through system information, and when the value of the received high speed flag parameter highspeed flag is not FALSE, determining that the terminal is in the area of the private network for high-speed rail; compared with a manual configuration mode, the automatic detection mode is more intelligent, does not need the participation of a user, and has higher requirement on network optimization configuration; in practical application, some high-speed moving scenes such as cell parameters of a high-speed rail private network are not configured and optimized correspondingly according to the high-speed moving scenes, so that the terminal may not be able to accurately detect whether the terminal is in the high-speed moving scene.

Disclosure of Invention

In order to solve the above technical problems, embodiments of the present invention desirably provide a method and an apparatus for detecting a high-speed moving scene, which can detect a change of a moving scene in time when a cell parameter of a high-speed moving scene network is not configured and optimized according to the high-speed moving scene, thereby ensuring communication performance of a terminal in the high-speed moving scene.

The technical scheme of the invention is realized as follows:

the embodiment of the invention provides a high-speed mobile scene detection method, which comprises the following steps:

acquiring parameters of at least one transmission path of a terminal receiving signal in real time;

and when the acquired parameters of at least one transmission path of the terminal receiving signals meet the preset high-speed moving scene judgment condition, determining that the terminal is currently in a high-speed moving scene.

In the foregoing solution, when the obtained parameter of at least one transmission path of the terminal receiving signal satisfies a preset high-speed moving scene decision condition, determining that the terminal is currently in a high-speed moving scene includes:

when the acquired parameters of at least one transmission path of the terminal receiving signals in any detection time period meet the preset high-speed mobile scene judgment condition, recording the corresponding detection time period as a judgment time period; counting the number of judgment time periods in M continuous preset detection time periods at the current moment, and determining that the terminal is currently in a high-speed moving scene when the counted number of judgment time periods is greater than or equal to a preset judgment threshold value N.

In the above scheme, the obtained parameters of at least one transmission path of the terminal received signal include parameters of at least two transmission paths of the terminal received signal; after acquiring parameters of at least one transmission path of a signal received by the terminal in real time, the method further comprises:

determining that the acquired parameters of at least one transmission path of the terminal receiving signals meet a preset high-speed moving scene judgment condition when the parameters of any two transmission paths of the terminal receiving signals meet a preset first determination condition, or when the variation trend of the parameters of any two transmission paths of the terminal receiving signals is a first variation trend, or when the variation trend of the parameters of any two transmission paths of the terminal receiving signals is a second variation trend;

the first variation trend is as follows: the method comprises the steps that conditions met by parameters of two corresponding transmission paths of signals received by a terminal are changed from a preset first determination condition to a preset second determination condition and then to the preset first determination condition;

the second variation trend is as follows: the condition met by the parameters of the two corresponding transmission paths of the received signal of the terminal is changed from the preset second determination condition to the preset first determination condition and then to the preset second determination condition.

In the foregoing solution, the preset first determining condition is: the signs of Doppler frequency offset estimation values or tracking values corresponding to the two transmission paths are opposite, the absolute value difference value of the Doppler frequency offset estimation values or the tracking values corresponding to the two transmission paths is smaller than a preset first difference threshold, the receiving power of terminal signals corresponding to the two transmission paths is larger than a preset first power threshold, the difference value of the receiving power of the terminal signals corresponding to the two transmission paths is smaller than a preset second difference threshold, and the identifications of source cells corresponding to the two transmission paths are the same;

the preset second determination condition is as follows: the receiving power of the terminal signal corresponding to one transmission path in the two transmission paths is larger than a preset second power threshold, and the identifiers of the source cells corresponding to the two transmission paths are the same;

or the following steps: the receiving power of the terminal signals corresponding to the two transmission paths is larger than a preset second power threshold, the Doppler frequency offset estimation values or tracking values corresponding to the two transmission paths are smaller than a preset frequency offset threshold, and the identifiers of the source cells corresponding to the two transmission paths are the same.

In the above scheme, the obtained parameter of at least one transmission path of the terminal receiving signal includes a parameter of a main path of the terminal receiving signal; after acquiring parameters of at least one transmission path of a signal received by the terminal in real time, the method further comprises:

when the acquired parameters of the main path of the terminal receiving signals meet a preset third determination condition, determining that the acquired parameters of at least one transmission path of the terminal receiving signals meet a preset high-speed moving scene judgment condition;

the preset third determination condition is as follows: the obtained estimated value or tracking value of the Doppler frequency offset of the main path of the terminal received signal is continuously and gradually changed from positive to negative, then the obtained main path of the terminal received signal is changed, the changed estimated value or tracking value of the Doppler frequency offset of the main path is continuously and gradually changed from positive to negative, and the identifiers of the source cells of all the main paths of the terminal received signal which are sequentially obtained are the same.

In the foregoing solution, the acquiring, in real time, a parameter of at least one transmission path of a signal received by a terminal includes: and when the Doppler frequency offset estimation value or the tracking value of the receiving channel meets the preset multipath receiving detection condition, acquiring the parameters of at least one transmission path of the received signal of the terminal in real time.

In the above scheme, the method further comprises: when the difference value of Doppler frequency offset estimation values or tracking values of the receiving channel obtained twice continuously exceeds a preset change amplitude threshold value, determining that the Doppler frequency offset estimation values or the tracking values of the receiving channel generate one-time jumping;

and determining that the Doppler frequency offset estimation value or the tracking value of the receiving channel meets the preset multipath receiving detection condition when the frequency of hopping of the Doppler frequency offset estimation value or the tracking value of the receiving channel is greater than or equal to a preset frequency threshold value within the set multipath receiving detection time interval.

In the foregoing solution, after determining that the terminal is currently in a high-speed moving scene, the method further includes:

step a: acquiring parameters of at least one transmission path of a terminal receiving signal in real time; when the acquired parameters of at least one transmission path of the terminal receiving signals meet the preset high-speed moving scene judgment condition, determining that the terminal is currently in a high-speed moving scene; otherwise, determining that the terminal is not in a high-speed moving scene;

step b: detecting the speed of the terminal relative to a base station providing service, and determining that the terminal is in a high-speed moving state when the speed of the terminal relative to the base station providing service is greater than or equal to a set speed threshold; when the speed of the terminal relative to a base station providing service is less than a set speed threshold value, determining that the terminal is not in a high-speed moving state;

or when the Doppler frequency offset estimation value or the tracking value of any receiving channel of the terminal meets the preset multipath receiving detection condition, determining that the terminal is in a high-speed moving state; otherwise, determining that the terminal is not in a high-speed moving state;

step c: when the terminal is in a high-speed moving scene and in a high-speed moving state, returning to the step a; when the terminal is in a high-speed moving scene and is not in a high-speed moving state, returning to the step b; and returning to the step a when the terminal is not in the high-speed moving scene and is in the high-speed moving state.

In the above scheme, the method further comprises: detecting whether the terminal is in a high-speed moving scene or not based on an automatic detection mode to obtain an automatic detection result; and when the automatic detection result is that the terminal is not in a high-speed moving scene, jumping to a step of acquiring parameters of at least one transmission path of the received signals of the terminal in real time.

The embodiment of the invention also provides a high-speed moving scene detection device, which comprises: the device comprises an acquisition module and a determination module; wherein,

the acquisition module is used for acquiring parameters of at least one transmission path of a signal received by the terminal in real time;

and the determining module is used for determining that the terminal is currently in a high-speed moving scene when the acquired parameters of at least one transmission path of the terminal receiving signals meet the preset high-speed moving scene judgment condition.

In the above scheme, the obtaining module is specifically configured to record a corresponding detection time period as a decision time period when a parameter of at least one transmission path of a terminal reception signal obtained in any detection time period satisfies a preset high-speed mobile scene decision condition; counting the number of judgment time periods in M continuous preset detection time periods at the current moment, and determining that the terminal is currently in a high-speed moving scene when the counted number of judgment time periods is greater than or equal to a preset judgment threshold value N.

In the above scheme, the obtained parameters of at least one transmission path of the terminal received signal include parameters of at least two transmission paths of the terminal received signal;

the determining module is further configured to determine that the acquired parameter of the at least one transmission path of the terminal received signal satisfies a preset high-speed moving scene decision condition after the parameter of the at least one transmission path of the terminal received signal is acquired in real time, and when the parameter of any two transmission paths of the terminal received signal satisfies a preset first determination condition, or when the variation trend of the parameter of any two transmission paths of the terminal received signal is a first variation trend, or when the variation trend of the parameter of any two transmission paths of the terminal received signal is a second variation trend;

In the above scheme, the obtained parameter of at least one transmission path of the terminal receiving signal includes a parameter of a main path of the terminal receiving signal;

the determining module is further configured to determine that the acquired parameter of at least one transmission path of the terminal received signal satisfies a preset high-speed moving scene decision condition when the acquired parameter of the main path of the terminal received signal satisfies a preset third determination condition;

In the above scheme, the obtaining module is specifically configured to obtain, in real time, a parameter of at least one transmission path of a signal received by the terminal when the doppler frequency offset estimation value or the tracking value of the receiving channel meets a preset multipath receiving detection condition.

In the above scheme, the obtaining module is further configured to determine that the doppler frequency offset estimation value or the tracking value of the receiving channel makes one jump when a difference value between the doppler frequency offset estimation value or the tracking value of the receiving channel obtained twice consecutively exceeds a preset change amplitude threshold value; and determining that the Doppler frequency offset estimation value or the tracking value of the receiving channel meets the preset multipath receiving detection condition when the frequency of hopping of the Doppler frequency offset estimation value or the tracking value of the receiving channel is greater than or equal to a preset frequency threshold value within the set multipath receiving detection time interval.

In the above scheme, the device is characterized in that the device further comprises a detection module for detecting whether the terminal is in a high-speed moving scene based on an automatic detection mode to obtain an automatic detection result; when the automatic detection result is that the terminal is not in a high-speed moving scene, triggering an acquisition module;

the acquisition module is used for acquiring parameters of at least one transmission path of the received signals of the terminal in real time when the acquisition module is triggered.

The embodiment of the invention provides a high-speed mobile scene detection method and a device, which are used for acquiring parameters of at least one transmission path of a terminal receiving signal in real time; when the acquired parameters of at least one transmission path of the terminal receiving signals meet the preset high-speed moving scene judgment condition, determining that the terminal is currently in a high-speed moving scene; therefore, automatic detection can be realized, the network distribution mode and parameter configuration of the existing high-speed mobile scene network are not changed, manual configuration of a user is not needed, and user experience is improved; even if the cell parameters of the high-speed moving scene network are not correspondingly configured and optimized according to the high-speed moving scene, the change of the moving scene can be timely detected, so that the communication performance of the terminal under the high-speed moving scene is guaranteed.

Drawings

FIG. 1 is a flowchart illustrating a high-speed moving scene detection method according to a first embodiment of the present invention;

fig. 2 is a flowchart after determining that the terminal is currently in a high-speed moving scene in the first embodiment of the high-speed moving scene detection method according to the present invention;

FIG. 3 is a flowchart illustrating a high-speed moving scene detection method according to a second embodiment of the present invention;

fig. 4 is a schematic structural diagram of a high-speed moving scene detection apparatus according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

First embodiment

Fig. 1 is a flowchart of a high-speed moving scene detection method according to a first embodiment of the present invention, as shown in fig. 1, the flowchart includes:

step 100: and acquiring parameters of at least one transmission path of the signals received by the terminal in real time.

Here, when receiving a signal, the terminal may utilize an LTE system or other communication systems to receive a signal from a network side, where the network side may be a base station, a core network, or the like; the channel through which the terminal receives the network-side signal is called a receiving channel, and the number of receiving channels of the terminal may be more than one, for example, when the terminal receives signals through a plurality of transmission paths, the number of receiving channels of the terminal is the number of transmission paths through which the terminal receives signals.

It is understood that the terminal may receive signals through a plurality of transmission paths when receiving signals; when a terminal is in a low-speed mobile scene such as a public network area, the conventional signal receiving mode, namely the signal receiving mode without distinguishing multipath, is generally adopted in consideration of factors such as terminal power consumption and processing complexity, wherein a time domain signal received by the terminal is a combined signal obtained by combining received multipath signals; at this time, after receiving the time domain signal, the terminal performs time-frequency domain transformation on the time domain signal, and then obtains a doppler frequency offset estimation value or a tracking value of the receiving channel through processing procedures such as channel estimation, doppler frequency offset estimation and the like.

It should be noted that the doppler frequency offset estimation value or the tracking value of the receiving channel may be obtained through various existing implementation manners, which are not described herein again.

Further, acquiring parameters of at least one transmission path of a terminal receiving signal includes: when the Doppler frequency offset estimation value or the tracking value of a receiving channel meets the preset multipath receiving detection condition, acquiring the parameters of at least one transmission path of a signal received by a terminal in real time; that is, the terminal starts the multipath reception detection mode only when the doppler frequency offset estimation value or tracking value of the reception channel satisfies the preset multipath reception detection condition, and the terminal can acquire signals received through a plurality of transmission paths when starting the multipath reception detection mode; at the moment, parameters of each transmission path of the signals received by the terminal are obtained; otherwise, when the Doppler frequency offset estimation value or the tracking value of the receiving channel of the terminal does not meet the preset multipath receiving detection condition, the conventional signal receiving mode is continuously adopted.

Specifically, when the difference value of the Doppler frequency offset estimation value or the tracking value of the receiving channel obtained twice continuously exceeds a preset change amplitude threshold value, determining that the Doppler frequency offset estimation value or the tracking value of the receiving channel generates one-time jump; the preset multipath reception detection conditions are as follows: in the set multipath receiving detection time interval, the frequency of hopping of the Doppler frequency offset estimation value or the tracking value of the receiving channel is more than or equal to a preset frequency threshold value.

Here, the doppler frequency offset estimation value or tracking value of the receiving channel obtained twice in succession may be both positive values, may also be both negative values, may also be one positive one negative; if the Doppler frequency offset estimation value or the tracking value of the receiving channel obtained twice continuously is positive and negative, the Doppler frequency offset estimation value or the tracking value of the receiving channel is turned; if the Doppler frequency offset estimation value or the tracking value of the receiving channel obtained for two consecutive times is both a positive value or a negative value, the Doppler frequency offset estimation value or the tracking value of the receiving channel is only subjected to mutation and is not overturned.

Illustratively, the preset variation threshold is 1000Hz, and one of the doppler frequency offset estimation values or tracking values of the receiving channel obtained twice consecutively is 735Hz, and the other value is-735 Hz, which indicates that when the difference value between the doppler frequency offset estimation values or tracking values of the receiving channel obtained twice consecutively exceeds the preset variation threshold, it is determined that one jump occurs in the doppler frequency offset estimation value or tracking value of the receiving channel.

It can be understood that, in a set multipath reception detection time interval, if the number of times of hopping of the doppler frequency offset estimation value or tracking value of the reception channel is greater than or equal to a preset number threshold, it indicates that the terminal may be in a high-speed moving state, and at this time, it may further determine whether the terminal is in a high-speed moving scene according to the acquired parameter of at least one transmission path of the terminal reception signal.

In practical application, the multipath receiving detection time interval, the variation amplitude threshold value and the times threshold value can be flexibly configured to meet the deployment requirement of a practical communication network.

In this step, the acquired parameters of at least one transmission path of the terminal receiving signal include, but are not limited to: receiving power of a terminal signal corresponding to the transmission path, identification of a source cell corresponding to the transmission path, and a Doppler frequency offset estimation value or a tracking value corresponding to the transmission path; here, the source cell of the corresponding transmission path is a cell where a source of a signal received by the terminal using the corresponding transmission path is located, and the identifier of the source cell of the corresponding transmission path may be a Physical Cell Identifier (PCI) or the like.

Step 101: and when the acquired parameters of at least one transmission path of the terminal receiving signals meet the preset high-speed moving scene judgment condition, determining that the terminal is currently in a high-speed moving scene.

The method specifically comprises the following steps: when the acquired parameters of at least one transmission path of the terminal receiving signals in any detection time period meet the preset high-speed mobile scene judgment condition, recording the corresponding detection time period as a judgment time period; counting the number of judgment time periods in M continuous preset detection time periods at the current moment, and determining that the terminal is currently in a high-speed moving scene when the counted number of judgment time periods is greater than or equal to a preset judgment threshold value N; m and N are both natural numbers.

Here, the M consecutive preset detection periods are sequentially and closely adjacent on the time axis, and the length of each preset detection period may be equal or different.

It should be noted that, if the parameter of at least one transmission path of the terminal receiving signal acquired in any detection time period does not satisfy the preset high-speed moving scene decision condition, the decision result count value is kept unchanged.

Illustratively, M is 10, N is 5, and if the final result of the judgment result counting value is 6, the terminal is determined to be in a high-speed moving scene currently; and if the final result of the judgment result count value is 3, determining that the terminal is not in the high-speed moving scene currently.

Particularly, if M and N both take 1, it is determined that the terminal is currently in a high-speed moving scene when the parameter of at least one transmission path of the terminal receiving signal acquired in any detection time period satisfies a preset high-speed moving scene decision condition.

It should be noted that when the final result of the decision result count value is smaller than the preset decision threshold value N, it is determined that the terminal is not currently in a high-speed mobile scene, and at this time, the terminal may close the multipath reception detection mode, and instead, adopt a conventional signal reception mode.

In this step, for the first implementation manner that determines whether the acquired parameter of at least one transmission path of the terminal received signal satisfies the preset high-speed moving scene decision condition within any detection time period, specifically, the acquired parameter of at least one transmission path of the terminal received signal includes parameters of at least two transmission paths of the terminal received signal, when the parameters of any two transmission paths of the terminal received signals satisfy a preset first determination condition in the acquired parameters of at least one transmission path of the terminal received signals, or, when the variation trend of the parameters of any two transmission paths of the received signals of the terminal is the first variation trend, or, when the variation trend of the parameters of any two transmission paths of the received signals of the terminal is the second variation trend, and determining that the acquired parameters of at least one transmission path of the terminal receiving signals meet preset high-speed mobile scene judgment conditions.

The first variation trend is as follows: the condition met by the parameters of the two corresponding transmission paths of the received signal of the terminal is changed from a preset first determination condition to a preset second determination condition and then to the preset first determination condition.

Here, the preset first determination condition and the preset second determination condition are mutually exclusive conditions, that is, when the parameters of the two corresponding transmission paths of the terminal receiving signal satisfy the first determination condition, the second determination condition is not satisfied; and when the parameters of the two corresponding transmission paths of the received signal of the terminal meet the second determination condition, the first determination condition is not met.

Specifically, the preset first determination condition is: the signs of the Doppler frequency offset estimation values or the tracking values corresponding to the two transmission paths are opposite, the absolute value difference value of the Doppler frequency offset estimation values or the tracking values corresponding to the two transmission paths is smaller than a preset first difference threshold, the receiving power of the terminal signals corresponding to the two transmission paths is larger than a preset first power threshold, the difference value of the receiving power of the terminal signals corresponding to the two transmission paths is smaller than a preset second difference threshold, and the identifications of the source cells corresponding to the two transmission paths are the same.

It can be understood that the doppler frequency offset estimation value or tracking value of each transmission path is a positive value or a negative value, and if the signs of the doppler frequency offset estimation values or tracking values corresponding to the two transmission paths are positive and negative, the signs of the doppler frequency offset estimation values or tracking values corresponding to the two transmission paths are opposite; the identity of the source cell for the two transmission paths may be the PCI of the source cell for the two transmission paths.

The preset second determination condition may be condition 1 or condition 2, where condition 1 is: and the receiving power of the terminal signal corresponding to one transmission path in the two transmission paths is greater than a preset second power threshold, and the identifiers of the source cells corresponding to the two transmission paths are the same.

The condition 2 is: the receiving power of the terminal signals corresponding to the two transmission paths is larger than a preset second power threshold, the Doppler frequency offset estimation values or tracking values corresponding to the two transmission paths are smaller than a preset frequency offset threshold, and the identifiers of the source cells corresponding to the two transmission paths are the same.

Here, the preset second power threshold may be the same as or different from the preset first power threshold.

In practical application, the length of each preset detection time period, the time interval for acquiring parameters of at least one transmission path of a terminal receiving signal twice continuously, the first difference threshold, the second difference threshold, the first power threshold, the second power threshold, and the frequency offset threshold may all be flexibly configured according to the deployment situation of the actual communication network.

In this step, for a second implementation manner that determines whether the acquired parameter of the at least one transmission path of the terminal received signal satisfies the preset high-speed moving scene decision condition within any detection time period, specifically, the acquired parameter of the at least one transmission path of the terminal received signal includes a parameter of a main path of the terminal received signal, and when the acquired parameter of the main path of the terminal received signal satisfies a preset third determination condition, it is determined that the acquired parameter of the at least one transmission path of the terminal received signal satisfies the preset high-speed moving scene decision condition.

Specifically, the preset third determination condition is: the obtained estimated value or tracking value of the Doppler frequency offset of the main path of the terminal received signal is continuously and gradually changed from positive to negative, then the obtained main path of the terminal received signal is changed, the changed estimated value or tracking value of the Doppler frequency offset of the main path is continuously and gradually changed from positive to negative, and the identifiers of the source cells of all the main paths of the terminal received signal which are sequentially obtained are the same.

When the variation amplitude of the estimated value or the tracking value of the Doppler frequency offset of the main path of the terminal receiving signal obtained twice in the adjacent process is smaller than a preset gradient threshold, determining that the estimated value or the tracking value of the Doppler frequency offset of the main path of the terminal receiving signal is in gradient; otherwise, determining that the estimated value or tracking value of the Doppler frequency offset of the main path of the signal received by the terminal is not gradually changed.

Here, among the terminal signal reception powers of the respective transmission paths of the terminal reception signal, the terminal signal reception power of the main path may be a maximum value.

In this step, when it is determined that the terminal is currently in a high-speed moving scene, the terminal processes the received signal in a high-speed scene processing mode.

Further, after step 101, the scene where the terminal is located and the moving state of the terminal may be continuously detected, and then, the subsequent processing may be performed according to the detected scene where the terminal is located and the detected moving state of the terminal.

Specifically, fig. 2 is a flowchart after determining that the terminal is currently in the high-speed moving scene in the first embodiment of the high-speed moving scene detection method of the present invention, as shown in fig. 2, after step 101, the high-speed moving scene detection method of the embodiment of the present invention further includes:

step 102: and re-determining whether the terminal is in a high-speed moving scene.

Specifically, parameters of at least one transmission path of a terminal receiving signal are acquired in real time; when the acquired parameters of at least one transmission path of the terminal receiving signals meet the preset high-speed moving scene judgment condition, determining that the terminal is currently in a high-speed moving scene; otherwise, determining that the terminal is not in the high-speed moving scene.

The implementation of this step has already been described in detail in step 101, and is not described here again.

It should be noted that, when determining whether the terminal is in a high-speed moving scene, a loop detection mode may be adopted, and an iterative detection mode may also be adopted; when the terminal is determined to be in a high-speed moving scene in a circulating detection mode, determining whether the terminal is in the high-speed moving scene at intervals of preset circulating detection time intervals to obtain the scene in which the terminal is positioned at the corresponding time; when the terminal is determined to be detected or not in an iterative detection mode, detecting whether the terminal is in a high-speed moving scene or not for multiple times according to a time sequence, and keeping the detection frequency of whether the terminal is in the high-speed moving scene or not unchanged when the terminal is not in the high-speed moving scene in any detection result; and when the terminal is in the high-speed moving scene as a result of any one detection, reducing the detection frequency for detecting whether the terminal is in the high-speed moving scene.

It can be seen that, based on this step, the situation that the terminal leaves the high-speed moving scene can be sent in time.

Step 103: whether the terminal is in a high-speed moving state is detected.

Specifically, the speed of the terminal relative to a base station providing service is detected, and when the speed of the terminal relative to the base station providing service is greater than or equal to a set speed threshold value, the terminal is determined to be in a high-speed moving state; when the speed of the terminal relative to a base station providing service is less than a set speed threshold value, determining that the terminal is not in a high-speed moving state;

or when the Doppler frequency offset estimation value or the tracking value of any receiving channel of the terminal meets the preset multipath receiving detection condition, determining that the terminal is in a high-speed moving state; otherwise, determining that the terminal is not in the high-speed moving state.

In practical application, when the difference value of the Doppler frequency offset estimation value or the tracking value of any one receiving channel obtained twice continuously exceeds a preset change amplitude threshold value, determining that the Doppler frequency offset estimation value or the tracking value of the corresponding receiving channel generates one jump; the preset multipath reception detection conditions are as follows: and in a set multipath receiving detection time interval, the frequency of jumping of the Doppler frequency offset estimation value or the tracking value of the corresponding receiving channel is more than or equal to a preset frequency threshold value.

It should be noted that, in this step, other doppler frequency offset detection modes or other speed measurement methods may also be adopted to detect whether the terminal is in a high-speed moving state.

Step 104: when the terminal is in a high-speed moving scene and in a high-speed moving state, processing the received signal by adopting a high-speed scene processing mode, and returning to the step 102; when the terminal is in a high-speed moving scene and is not in a high-speed moving state, returning to the step 103; when the terminal is not in the high-speed moving scene and is in the high-speed moving state, returning to the step 102; and when the terminal is not in a high-speed moving scene and is not in a high-speed moving state, processing the received signals according to a conventional processing mode.

Specifically, when the terminal is in a high-speed moving scene and in a high-speed moving state, the received signal is processed in the high-speed scene processing mode, and after a preset scene keeping detection time interval elapses, the process returns to step 102.

When the terminal is in a high-speed moving scene and is not in a high-speed moving state, the terminal may enter a high-speed railway station or get off the train halfway, and after a preset speed detection time interval, the method returns to step 103 to re-detect whether the terminal is in the high-speed moving state, and when the re-detected result is that the terminal is in the high-speed moving state, the high-speed scene processing mode is continuously adopted to process the received signals, and after a preset scene keeping detection time interval, the method returns to step 102; and when the re-detection result shows that the terminal is not in the high-speed moving state, the terminal resumes to process the received signal by adopting the conventional processing mode.

Further, when re-detecting whether the terminal is in the high-speed moving state, K times of detection can be continuously performed, wherein K is a natural number greater than 1, and if at least L detection results in the detection results obtained by the K times of detection are that the terminal is in the high-speed moving state, the terminal is determined to be in the high-speed moving state; otherwise, the terminal is determined not to be in the high-speed moving state.

Here, the preset speed detection time interval, K and L can be flexibly configured to meet the requirements of practical applications.

Specifically, when the terminal is not in a high-speed moving scene and is in a high-speed moving state, the terminal may be separated from the high-speed moving scene network due to an abnormal condition in the high-speed moving process, at this time, after a preset scene detection time interval elapses, the process returns to step 102, whether the terminal is in the high-speed moving scene is determined again, when the determination result is that the terminal is in the high-speed moving scene, the high-speed scene processing mode is continuously adopted to process the received signal, and after a preset scene keeping detection time interval elapses, the process returns to step 102; and if the terminal is not successfully returned to the high-speed mobile scene network, determining whether to resume processing the received signal by adopting a conventional processing mode or not according to the actual function of the terminal.

Further, when re-determining whether the terminal is in the high-speed moving scene, continuously performing K 'times of detection, wherein K' is a natural number greater than 1, and if at least L 'detection results in the detection results obtained by the K' times of detection are that the terminal is in the high-speed moving state, determining that the terminal is in the high-speed moving state; otherwise, the terminal is determined not to be in the high-speed moving state.

Here, the scene detection time interval, the scene hold detection time interval, K 'and L' may be flexibly configured to meet the requirements of practical applications.

It can be understood that the conventional processing mode is a signal processing mode adopted when the terminal is in the public network to process the received signal, and therefore, the details are not described again.

As a variation of the first embodiment of the present invention, before step 100, whether the terminal is in a high-speed moving scene may be detected based on an existing automatic detection method to obtain an automatic detection result; when the automatic detection result is that the terminal is in a high-speed moving scene, the terminal processes the received signals in a high-speed scene processing mode; and when the automatic detection result shows that the terminal is not in the high-speed moving scene, jumping to step 100, and detecting whether the terminal is in the high-speed moving scene again according to step 100 and step 101.

For detecting whether the terminal is in a high-speed moving scene based on an automatic detection mode, illustratively, the terminal receives a high-speed flag parameter highspeed flag from a network side through system information, when the value of the received high-speed flag parameter highspeed flag is not FALSE, the automatic detection result is that the terminal is in the high-speed moving scene, otherwise, the automatic detection result is that the terminal is not in the high-speed moving scene.

By applying the high-speed moving scene detection method of the first embodiment of the invention, whether the terminal is in the high-speed moving scene can be detected based on the corresponding channel model according to the special network distribution mode of the high-speed moving scene network, so that automatic detection can be realized, the network distribution mode and parameter configuration of the existing high-speed moving scene network are not changed, manual configuration of a user is not needed, and the user experience is improved; even if the cell parameters of the high-speed moving scene network are not correspondingly configured and optimized according to the high-speed moving scene, the change of the moving scene can be timely detected, so that the communication performance of the terminal under the high-speed moving scene is guaranteed; in addition, the processing mode adopted by the terminal for signal processing can be flexibly selected according to the situation, the signal processing of the terminal in a high-speed moving scene is not influenced, and unnecessary expenses such as power consumption and processing complexity are avoided.

Further, when the terminal is determined to be in a high-speed moving scene, the scene where the terminal is located can be continuously detected, and the situation that the terminal leaves the high-speed moving scene can be conveniently found in time.

Furthermore, whether the terminal is in a high-speed moving scene can be judged in advance based on the existing automatic detection mode, so that the scene in which the terminal is located can be flexibly detected according to the actual parameter configuration of the high-speed moving scene network.

Second embodiment

In order to further embody the object of the present invention, the first embodiment of the present invention is further illustrated.

In the second embodiment of the present invention, the network covering the high-speed mobile scenario is a private network for high-speed rail, the network covering the non-high-speed mobile scenario is a public network, and the identifier of the source cell of each transmission path is PCI.

Fig. 3 is a flowchart of a high-speed moving scene detection method according to a second embodiment of the present invention, as shown in fig. 3, the flowchart includes:

step 301: judging whether the frequency of hopping of the Doppler frequency offset estimation value or the tracking value of a receiving channel in a set multipath receiving detection time interval is greater than or equal to a preset frequency threshold value or not; if yes, the terminal starts a multipath receiving detection mode and jumps to step 302; if not, the terminal keeps the processing mode under the normal condition.

Specifically, in step 100, it is already described what kind of situation that a doppler frequency offset estimation value or tracking value of the receiving channel makes a jump, and therefore, the description is not repeated here.

Here, after the terminal starts the multipath reception detection mode, signals received through a plurality of transmission paths may be acquired; and when the terminal keeps the processing mode under the conventional condition, the conventional signal receiving mode is continuously adopted, and the received signal is processed by adopting the conventional processing mode.

Step 302: determining a judgment result of a corresponding time period as that the terminal is in a high-speed moving scene when parameters of at least two transmission paths of a terminal receiving signal acquired in any one detection time period meet a preset high-speed moving scene judgment condition within M' continuous preset detection time periods ending to the current time;

or, in M' consecutive preset detection time periods from the current moment, when the variation trend of the parameter of the main path of the terminal receiving signal acquired in any one detection time period is the preset main path parameter variation trend, determining the judgment result of the corresponding time period as that the terminal is in the high-speed moving scene.

Here, M' is a natural number greater than 1.

Specifically, in this step, as for an implementation manner of determining whether the parameters of at least two transmission paths of the terminal received signal acquired in any detection time period satisfy the preset high-speed moving scene decision condition, it is the same as the first implementation manner of determining whether the parameters of at least one transmission path of the terminal received signal acquired in step 101 satisfy the preset high-speed moving scene decision condition, and is not repeated here; the preset main diameter parameter variation trend is the main diameter parameter variation trend determined by the third determination condition preset in step 101.

It should be noted that, when the parameters of at least two transmission paths of the terminal receiving signal acquired in any one detection time period do not meet the preset high-speed moving scene decision condition, the decision result of the corresponding time period is determined that the terminal is not in the high-speed moving scene; when the variation trend of the parameters of the main path of the terminal receiving signals acquired in any detection time period is not the preset variation trend of the parameters of the main path, determining the judgment result of the corresponding time period as that the terminal is not in a high-speed moving scene

Step 303: in M 'continuous preset detection time periods ending to the current time, judging whether the frequency of the terminal in a high-speed moving scene is greater than or equal to a preset judgment threshold value N' or not according to a judgment result, if not, closing a multipath detection mode by the terminal, and recovering to adopt a conventional signal receiving mode; if so, go to step 304.

Step 304: and determining that the terminal is in the high-speed rail private network, starting a high-speed rail processing mode by the terminal, and jumping to the step 305.

Here, when the terminal turns on the high-speed rail processing mode, the received signal may be processed in the high-speed scene processing mode.

Step 305: and the terminal starts a detection mechanism for maintaining the scene state of the private network for the high-speed rail and jumps to step 306.

Here, the detection mechanism for maintaining the scene state of the high-speed rail private network is used for detecting the scene where the terminal is located according to steps 102 to 104.

Step 306: re-determine whether the terminal is in the high-speed rail private network, and jump to step 307.

The implementation manner of re-determining whether the terminal is in the high-speed rail private network in this step is completely the same as that of step 102, and is not repeated here.

Step 307: it is detected whether the terminal is in a high-speed moving state and it jumps to step 308.

In this step, the implementation manner of detecting whether the terminal is in the high-speed moving state is completely the same as the implementation manner of step 103, and is not repeated here.

Step 308: and when the terminal is in a high-speed rail private network and in a high-speed moving state, maintaining the high-speed rail processing mode, and returning to the step 306 after a preset scene detection time interval is maintained.

When the terminal is in the high-speed rail private network and is not in the high-speed moving state, after a preset speed detection time interval elapses, the process returns to step 307.

Here, the operation after returning to step 307 has already been explained in step 104, and is not described here again.

And when the terminal is not in the high-speed rail private network and is in a high-speed moving state, returning to the step 306 after a preset scene detection time interval.

Here, the operation after returning to step 306 has already been explained in step 104, and is not described here again.

And when the terminal is not in a high-speed rail private network and is not in a high-speed moving state, processing the received signal according to a conventional processing mode.

By applying the high-speed moving scene detection method of the second embodiment of the invention, whether the terminal is in the high-speed moving scene can be detected based on the corresponding channel model according to the special network distribution mode of the high-speed moving scene network, so that automatic detection can be realized, the network distribution mode and parameter configuration of the existing high-speed moving scene network are not changed, manual configuration of a user is not needed, and the user experience is improved; even if the cell parameters of the high-speed moving scene network are not correspondingly configured and optimized according to the high-speed moving scene, the change of the moving scene can be timely detected, so that the communication performance of the terminal under the high-speed moving scene is guaranteed; in addition, the processing mode adopted by the terminal for signal processing can be flexibly selected according to the situation, the signal processing of the terminal in a high-speed moving scene is not influenced, and unnecessary expenses such as power consumption and processing complexity are avoided.

Third embodiment

A third embodiment of the present invention provides a high-speed moving scene detection apparatus, which is directed to the first embodiment of the high-speed moving scene detection method according to the present invention.

Fig. 4 is a schematic diagram of a composition structure of a high-speed moving scene detection apparatus according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes: an acquisition module 400 and a determination module 401; wherein,

an obtaining module 400, configured to obtain, in real time, parameters of at least one transmission path of a terminal receiving signal.

The determining module 401 is configured to determine that the terminal is currently in a high-speed moving scene when the acquired parameter of at least one transmission path of the terminal receiving signal meets a preset high-speed moving scene determination condition.

Specifically, the obtaining module 400 is configured to record a corresponding detection time period as a decision time period when a parameter of at least one transmission path of a terminal reception signal obtained in any detection time period satisfies a preset high-speed mobile scene decision condition; counting the number of judgment time periods in M continuous preset detection time periods at the current moment, and determining that the terminal is currently in a high-speed moving scene when the counted number of judgment time periods is greater than or equal to a preset judgment threshold value N; for example, when parameters of at least one transmission path of a terminal receiving signal acquired in any one detection time period meet a preset high-speed moving scene decision condition within M preset detection time periods which are continuous until the current time, adding 1 to a count value of the decision time period, wherein an initial value of the count value of the decision time period is 0; and when the final result of the counting value of the judgment time period is greater than or equal to the preset judgment threshold value N, determining that the terminal is currently in a high-speed moving scene.

Specifically, the acquired parameters of at least one transmission path of the terminal received signal include parameters of at least two transmission paths of the terminal received signal.

The determining module 401 is further configured to, after acquiring the parameter of the at least one transmission path of the terminal received signal in real time, determine that the acquired parameter of the at least one transmission path of the terminal received signal satisfies the preset high-speed moving scene decision condition when the parameter of any two transmission paths of the terminal received signal satisfies the preset first determination condition, or when the variation trend of the parameter of any two transmission paths of the terminal received signal is the first variation trend, or when the variation trend of the parameter of any two transmission paths of the terminal received signal is the second variation trend.

Here, the preset first determination condition is: the signs of the Doppler frequency offset estimation values or the tracking values corresponding to the two transmission paths are opposite, the absolute value difference value of the Doppler frequency offset estimation values or the tracking values corresponding to the two transmission paths is smaller than a preset first difference threshold, the receiving power of the terminal signals corresponding to the two transmission paths is larger than a preset first power threshold, the difference value of the receiving power of the terminal signals corresponding to the two transmission paths is smaller than a preset second difference threshold, and the identifications of the source cells corresponding to the two transmission paths are the same.

The preset second determination condition is as follows: and the receiving power of the terminal signal corresponding to one transmission path in the two transmission paths is greater than a preset second power threshold, and the identifiers of the source cells corresponding to the two transmission paths are the same.

Specifically, the acquired parameter of at least one transmission path of the terminal receiving signal includes a parameter of a main path of the terminal receiving signal.

The determining module 401 is further configured to determine that the parameter of at least one transmission path of the acquired terminal received signal satisfies a preset high-speed moving scene decision condition when the parameter of the main path of the acquired terminal received signal satisfies a preset third determination condition.

Specifically, the obtaining module 400 is configured to obtain, in real time, a parameter of at least one transmission path of a signal received by the terminal when the doppler frequency offset estimation value or the tracking value of the receiving channel meets a preset multipath receiving detection condition.

The obtaining module 400 is further configured to determine that the doppler frequency offset estimation value or the tracking value of the receiving channel has one jump when a difference between the doppler frequency offset estimation value or the tracking value of the receiving channel obtained twice consecutively exceeds a preset variation amplitude threshold value; and determining that the Doppler frequency offset estimation value or the tracking value of the receiving channel meets the preset multipath receiving detection condition when the frequency of hopping of the Doppler frequency offset estimation value or the tracking value of the receiving channel is greater than or equal to a preset frequency threshold value within the set multipath receiving detection time interval.

Further, the device further includes a detection module 402, configured to detect whether the terminal is in a high-speed moving scene based on an automatic detection manner, so as to obtain an automatic detection result; and triggering the acquisition module when the automatic detection result indicates that the terminal is not in the high-speed moving scene.

The obtaining module 400 is configured to obtain, in real time, a parameter of at least one transmission path of a signal received by the terminal when triggered.

In practical applications, the obtaining module 400, the determining module 401 and the detecting module 402 can be implemented by a Central Processing Unit (CPU), a MicroProcessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like in the terminal.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for detecting a high-speed moving scene, the method comprising:

2. The method according to claim 1, wherein when the obtained parameter of at least one transmission path of the terminal receiving signal satisfies a preset high speed moving scene decision condition, determining that the terminal is currently in a high speed moving scene comprises:

3. The method of claim 2, wherein the obtained parameters of at least one transmission path for the terminal to receive the signal comprise parameters of at least two transmission paths for the terminal to receive the signal; after acquiring parameters of at least one transmission path of a signal received by the terminal in real time, the method further comprises:

4. The method according to claim 3, characterized in that said preset first determination condition is: the signs of Doppler frequency offset estimation values or tracking values corresponding to the two transmission paths are opposite, the absolute value difference value of the Doppler frequency offset estimation values or the tracking values corresponding to the two transmission paths is smaller than a preset first difference threshold, the receiving power of terminal signals corresponding to the two transmission paths is larger than a preset first power threshold, the difference value of the receiving power of the terminal signals corresponding to the two transmission paths is smaller than a preset second difference threshold, and the identifications of source cells corresponding to the two transmission paths are the same;

5. The method of claim 2, wherein the obtained parameters of at least one transmission path of the terminal receiving signal comprise parameters of a main path of the terminal receiving signal; after acquiring parameters of at least one transmission path of a signal received by the terminal in real time, the method further comprises:

6. The method of claim 1, wherein the obtaining parameters of at least one transmission path of the terminal receiving signals in real time comprises: and when the Doppler frequency offset estimation value or the tracking value of the receiving channel meets the preset multipath receiving detection condition, acquiring the parameters of at least one transmission path of the received signal of the terminal in real time.

7. The method of claim 6, further comprising: when the difference value of Doppler frequency offset estimation values or tracking values of the receiving channel obtained twice continuously exceeds a preset change amplitude threshold value, determining that the Doppler frequency offset estimation values or the tracking values of the receiving channel generate one-time jumping;

8. The method of claim 1, wherein after determining that the terminal is currently in a high-speed moving scene, the method further comprises:

9. The method according to any one of claims 1 to 8, further comprising: detecting whether the terminal is in a high-speed moving scene or not based on an automatic detection mode to obtain an automatic detection result; and when the automatic detection result is that the terminal is not in a high-speed moving scene, jumping to a step of acquiring parameters of at least one transmission path of the received signals of the terminal in real time.

10. A high-speed moving scene detection apparatus, characterized in that the apparatus comprises: the device comprises an acquisition module and a determination module; wherein,

11. The apparatus according to claim 10, wherein the obtaining module is specifically configured to record, when a parameter of at least one transmission path of a terminal reception signal obtained in any one detection time period satisfies a preset high-speed mobile scene decision condition, a corresponding detection time period as a decision time period; counting the number of judgment time periods in M continuous preset detection time periods at the current moment, and determining that the terminal is currently in a high-speed moving scene when the counted number of judgment time periods is greater than or equal to a preset judgment threshold value N.

12. The apparatus according to claim 11, wherein the obtained parameters of at least one transmission path of the terminal received signal comprise parameters of at least two transmission paths of the terminal received signal;

13. The apparatus according to claim 12, wherein the preset first determination condition is: the signs of Doppler frequency offset estimation values or tracking values corresponding to the two transmission paths are opposite, the absolute value difference value of the Doppler frequency offset estimation values or the tracking values corresponding to the two transmission paths is smaller than a preset first difference threshold, the receiving power of terminal signals corresponding to the two transmission paths is larger than a preset first power threshold, the difference value of the receiving power of the terminal signals corresponding to the two transmission paths is smaller than a preset second difference threshold, and the identifications of source cells corresponding to the two transmission paths are the same;

14. The apparatus according to claim 11, wherein the obtained parameters of at least one transmission path of the terminal received signal comprise parameters of a main path of the terminal received signal;

15. The apparatus of claim 10, wherein the obtaining module is specifically configured to obtain the parameter of at least one transmission path of the received signal of the terminal in real time when the doppler frequency offset estimation value or the tracking value of the receiving channel meets a preset multipath reception detection condition.

16. The apparatus of claim 15, wherein the obtaining module is further configured to determine that a jump occurs in the doppler frequency offset estimation value or the tracking value of the receiving channel when a difference between the doppler frequency offset estimation value or the tracking value of the receiving channel obtained twice consecutively exceeds a preset change amplitude threshold value; and determining that the Doppler frequency offset estimation value or the tracking value of the receiving channel meets the preset multipath receiving detection condition when the frequency of hopping of the Doppler frequency offset estimation value or the tracking value of the receiving channel is greater than or equal to a preset frequency threshold value within the set multipath receiving detection time interval.

17. The device according to any one of claims 10 to 16, further comprising a detection module, configured to detect whether the terminal is in a high-speed moving scene based on an automatic detection manner, and obtain an automatic detection result; when the automatic detection result is that the terminal is not in a high-speed moving scene, triggering an acquisition module;