CN113132436B - Method and device for identifying terminal equipment on high-speed rail - Google Patents
Method and device for identifying terminal equipment on high-speed rail Download PDFInfo
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- CN113132436B CN113132436B CN201911417035.4A CN201911417035A CN113132436B CN 113132436 B CN113132436 B CN 113132436B CN 201911417035 A CN201911417035 A CN 201911417035A CN 113132436 B CN113132436 B CN 113132436B
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- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
Abstract
The invention discloses an identification method and device for identifying terminal equipment on a high-speed rail, wherein the method comprises the following steps: acquiring the number of times of mobile events of the terminal equipment in unit time; when the number of times of the mobile events of the terminal equipment in unit time is greater than or equal to a first threshold value, the terminal equipment is equivalent to a large group of users moving intensively in a short time, and the occurrence of a high-speed rail switching event can be determined; when the high-speed rail switching event is determined to occur, updating the count value of the high-speed rail switching event times of the terminal equipment with the high-speed rail switching event; when it is determined that the count value of the number of times of the high-speed rail switching events of the terminal device having the high-speed rail switching event is greater than or equal to the second threshold value, it may be determined that the terminal device having the high-speed rail switching event is a terminal device on a high-speed rail.
Description
Technical Field
The invention relates to the field of networks, in particular to a method and a device for identifying terminal equipment on a high-speed rail.
Background
By 9 months in 2018, China has finished the construction of 2.8 kilometers of high-speed rails, and 4200 kilometers in new construction in 2019, and the total length of 2025 years is expected to exceed 3.8 kilometers. The mobile operator considers the user on the high-speed rail as a high-value user, and needs to ensure the user experience of the user on the high-speed rail. Therefore, a special high-speed rail private network is established for the high-speed rail, and high-speed rail users can share the special high-speed rail private network to provide good speed experience.
In the actual implementation process, users who are not on the high-speed rail can access the private network cell of the high-speed rail, and especially when the population density near the high-speed rail in an urban area is high, a large number of users who are not on the high-speed rail can access the private network cell of the high-speed rail, so that the private network cell of the high-speed rail is crowded, the user experience of the users on the high-speed rail cannot be guaranteed, and the base station cannot identify which users are on the high-speed rail and which users are not on the high-speed rail. In addition, the user on the high-speed rail can easily switch to a cell of a non-high-speed rail private network, which may cause frequent switching, thereby also affecting the user experience of the user on the high-speed rail.
In the existing base station, some identification algorithms are used for identifying high-speed rail users, so that the terminal equipment on the high-speed rail is controlled to be left in a cell of a high-speed rail private network, the situation that the users not on the high-speed rail access the cell of the high-speed rail private network is avoided, and the user experience of the high-speed rail users is guaranteed as much as possible. The method for identifying the terminal equipment on the high-speed rail by the current base station mainly comprises the following steps: the method is identified according to the moving speed, frequency deviation measurement or switching frequency of the terminal equipment, and because the method cannot obtain the accurate position and displacement of the terminal, the error is large, the identification accuracy is poor.
Disclosure of Invention
A first aspect of the embodiments of the present application provides an identification method for identifying a terminal device on a high-speed rail, where the method includes: acquiring the times of a mobile event of the terminal equipment in unit time, wherein the mobile event comprises a switching event, a measurement reporting event, a data transmission event and an information change event related to the connection between a base station and the terminal equipment; when the number of times of the mobile events of the terminal equipment in unit time is greater than or equal to a first threshold value, determining that a high-speed rail switching event occurs; when the high-speed rail switching event is determined to occur, updating the count value of the number of the high-speed rail switching events of the terminal equipment which is switched; and when the counting value of the times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events is larger than or equal to the second threshold value, determining that the terminal equipment with the high-speed rail switching events is the terminal equipment on the high-speed rail.
The scheme does not adopt moving speed evaluation, frequency deviation detection and switching frequency calculation. The occurrence of the high-speed rail switching event is determined according to the characteristic 'user centralization' event inherent in the high-speed rail. When the number of mobile events of the terminal device in unit time is greater than or equal to a first threshold value, the network environment changes intensively in a short time, which is equivalent to a large group of terminal devices. For example, if a concentrated switching event occurs within a short period of time, it may be determined that a switching event occurred on a high-speed rail. The high-speed rail switching event can be that the high-speed rail leaves the area managed by the original base station, or enters the area managed by the next base station, or is positioned in a certain cell. When a high-speed rail switching event occurs, if the count value of the times of the high-speed rail switching events occurring in the terminal equipment with the high-speed rail switching event is greater than or equal to the second threshold value, the terminal equipment can be determined to be the terminal equipment on the high-speed rail. The method for identifying the terminal equipment on the high-speed rail has low error and can improve the identification accuracy.
Optionally, with reference to the first aspect, in a first possible implementation manner of the first aspect, the number of times of the high-speed rail handover event of the terminal device that has a high-speed rail handover event includes at least one of the number of times of the high-speed rail handover event of the terminal device, the number of times of the high-speed rail handover event, the number of times of measurement reporting, the number of times of data transmission, and the number of times of information change events related to connection between the base station and the terminal.
Optionally, with reference to the first aspect, in a second possible implementation manner of the first aspect, the acquiring the number of times of the mobile event of the terminal device in the unit time includes: acquiring the number of times of moving events of the terminal equipment in the current time window; and acquiring the times of the mobile events of the terminal equipment in unit time according to the times of the mobile events of the terminal equipment in the current time window and the duration of the current time window.
Optionally, with reference to any one possible implementation manner of the first aspect to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, before the updating the count value of the number of high-speed rail switching events of the terminal device that has a high-speed rail switching event, the method further includes: receiving a corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events; when the high-speed rail switching event is determined to occur, updating the count value of the number of high-speed rail switching events of the terminal equipment with the high-speed rail switching event comprises the following steps:
if the corresponding relationship between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events does not contain the corresponding relationship between the identifier of the terminal equipment which generates the high-speed rail switching events, adding the corresponding relationship between the identifier of the terminal equipment which generates the high-speed rail switching events and the count value of the times of the high-speed rail switching events of the terminal equipment which generates the high-speed rail switching events, and recording that the count value of the times of the high-speed rail switching events of the terminal equipment which generates the high-speed rail switching events is 1;
and if the corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events contains the corresponding relation between the identifiers of the terminal equipment which generates the high-speed rail switching events, adding 1 to the count value of the times of the high-speed rail switching events in the corresponding relation between the identifiers of the terminal equipment which generates the high-speed rail switching events.
Optionally, with reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes: sending the corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events to a target base station; and deleting the corresponding relation between the locally recorded identification of the terminal equipment and the count value of the number of times of the high-speed rail switching events.
The second aspect of the present application provides an apparatus for identifying a terminal device on a high-speed rail, wherein the apparatus includes: the mobile event comprises a switching event, a measurement reporting event, a data transmission event and an information change event related to the connection between a base station and the terminal equipment; the determining module is used for determining that a high-speed rail switching event occurs when the number of times of the mobile events of the terminal equipment in the unit time is greater than or equal to a first threshold value; the updating module is used for updating the count value of the times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events when the determining module determines that the high-speed rail switching events occur; the determining module is further configured to determine that the terminal device having the high-speed rail switching event is a terminal device on a high-speed rail when it is determined that the count value of the number of high-speed rail switching events of the terminal device having the high-speed rail switching event is greater than or equal to a second threshold value.
The scheme does not adopt moving speed evaluation, frequency deviation detection and switching frequency. And determining the occurrence of the high-speed rail switching event according to the reporting of the 'user concentration' event of the inherent characteristics of the high-speed rail. When the number of the mobile events of the mobile event of the terminal device in unit time is greater than or equal to a first threshold value, the network environment is changed intensively in a short time, which is equivalent to a large group of terminal devices. For example, if a concentrated switching event occurs within a short period of time, it may be determined that a high-speed rail switching event has occurred. The high-speed rail switching event can be that the high-speed rail leaves the area managed by the original base station, enters the area managed by the next base station or is positioned in a certain cell. When a high-speed rail switching event occurs, if the count value of the times of the high-speed rail switching events occurring in the terminal equipment with the high-speed rail switching event is greater than or equal to the second threshold value, the terminal equipment can be determined to be the terminal equipment on the high-speed rail.
Optionally, with reference to the second aspect, in a first possible implementation manner of the second aspect, the number of times of the high-speed rail handover event of the terminal device that has a high-speed rail handover event includes at least one of the number of times of the high-speed rail handover event of the terminal device, the number of times of the high-speed rail handover event, the number of times of measurement reporting, the number of times of data transmission, and the number of times of information change events related to connection between the base station and the terminal.
Optionally, with reference to the second aspect, in a second possible implementation manner of the second aspect, the obtaining module is further configured to obtain a number of mobile event times of the terminal device in a current time window; the obtaining module is further configured to obtain the number of times of the mobile event of the terminal device in unit time according to the number of times of the mobile event of the terminal device in the current time window and the duration of the current time window.
Optionally, with reference to any one possible implementation manner of the second aspect to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the apparatus further includes: the receiving module is used for receiving the corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events; the updating module is configured to, when the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event does not include the correspondence between the identifier of the terminal device that has generated the high-speed rail switching event, add the correspondence between the identifier of the terminal device that has generated the high-speed rail switching event and the count value of the number of times of the high-speed rail switching event of the terminal device that has generated the high-speed rail switching event to the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event, and record that the count value of the number of times of the high-speed rail switching event of the terminal device that has generated the high-speed rail switching event is 1; the updating module is further configured to add 1 to the count value of the number of times of the high-speed rail switching event in the correspondence relationship between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event, when the correspondence relationship between the identifier of the terminal device that has generated the high-speed rail switching event includes the correspondence relationship between the identifiers of the terminal devices that have generated the high-speed rail switching event.
Optionally, with reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the apparatus further includes: the sending module is used for sending the corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events to the target base station; and the deleting module is used for deleting the corresponding relation between the locally recorded identification of the terminal equipment and the count value of the times of the high-speed rail switching events.
The application provides an identification method and device for identifying terminal equipment on a high-speed rail, wherein the method comprises the following steps: acquiring the times of a mobile event of the terminal equipment in unit time, wherein the mobile event comprises a switching event, a measurement reporting event, a data transmission event and an information change event related to the connection between a base station and the terminal equipment; when the number of times of the mobile events of the terminal equipment in unit time is greater than or equal to a first threshold value, determining that a high-speed rail switching event occurs; when the high-speed rail switching event is determined to occur, updating the count value of the number of the high-speed rail switching events of the terminal equipment which is switched; and when the counting value of the times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events is larger than or equal to the second threshold value, determining that the terminal equipment with the high-speed rail switching events is the terminal equipment on the high-speed rail. The scheme does not adopt end moving speed estimation, frequency deviation detection and switching frequency. The occurrence of the high-speed rail switching event is determined according to the inherent characteristics of the high-speed rail, namely the 'user centralization' event. When the number of times of the mobile events of the terminal equipment in the unit time is greater than or equal to a first threshold value, the network environment is changed in a centralized manner in a short time, which is equivalent to a large group of terminal equipment. For example, if a concentrated handover event occurs in a short time, it may be determined that a high-speed rail handover event occurs, and the high-speed rail handover event may be that the high-speed rail leaves an area managed by an original base station, enters an area managed by a next base station, or is located in a certain cell. When a high-speed rail switching event occurs, if the count value of the number of high-speed rail switching events of the terminal device with the high-speed rail switching event is greater than or equal to the second threshold value, it can be determined that the terminal device is a terminal device on a high-speed rail.
Drawings
Fig. 1 is a scene diagram of identifying a terminal device on a high-speed rail through frequency offset measurement according to an embodiment of the present disclosure;
fig. 2 is a scene diagram for identifying a terminal device on a high-speed rail according to a switching frequency according to an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a method for identifying a terminal device on a high-speed rail according to an embodiment of the present application;
fig. 4 is a schematic diagram of an apparatus for identifying a terminal device on a high-speed rail according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The term "and/or" appearing in the present application may be an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this application generally indicates that the former and latter related objects are in an "or" relationship.
The terms "first," "second," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Moreover, the terms "comprises," "comprising," and any other variation 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 modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not expressly listed or inherent to such process, method, article, or apparatus.
The mobile operator considers the user on the high-speed rail as a high-value user, and needs to ensure the user experience of the user on the high-speed rail. Therefore, a special high-speed rail private network is established for the high-speed rail, and high-speed rail users can exclusively share the special high-speed rail private network to provide good speed experience. In the actual implementation process, users who are not on the high-speed rail can access the private network cell of the high-speed rail, especially when the population density near the high-speed rail in an urban area is large, a large number of users who are not on the high-speed rail can access the private network cell of the high-speed rail, and therefore the private network cell of the high-speed rail is crowded, so that the user experience of the users on the high-speed rail cannot be guaranteed, and the base station cannot identify which users are on the high-speed rail and which users are not on the high-speed rail. In addition, the user on the high-speed rail can be easily switched to a cell of a non-high-speed rail private network, which may cause frequent switching, thereby also affecting the user experience of the user on the high-speed rail.
It should be noted that "handover" is a common term in a wireless mobile network, and refers to a transformation process of a terminal device moving from one access point to another access point of a wireless network.
In the existing base station, some identification algorithms are used for identifying high-speed rail users, so that the terminal equipment on the high-speed rail is controlled to be left in a cell of a high-speed rail private network, the situation that the users not on the high-speed rail access the cell of the high-speed rail private network is avoided, and the user experience of the high-speed rail users is guaranteed as much as possible. The current method for identifying the terminal equipment on the high-speed rail by the base station mainly adopts the mobile speed estimation, the frequency offset measurement or the switching frequency, and the method has poor identification effect because the method can not obtain the accurate position and displacement of the terminal and has large error.
In some embodiments, the moving speed of the terminal device may be evaluated by various methods, and then the moving speed of the terminal device is compared with the moving speed of the high-speed rail, so as to identify whether the terminal device is a terminal device on the high-speed rail. The most accurate method is to estimate the speed through longitude and latitude position information reported by a terminal for many times, but the method for reporting the longitude and latitude data of the user relates to user privacy and cannot be used generally. The methods estimate the moving speed by using the wireless signal characteristics, including the relationship between the position change and the change duration such as the longitude and latitude where the cell antenna is located, and the like, and have great errors on the estimated value of the moving speed of the terminal equipment, thereby causing inaccurate identification of the terminal equipment on a high-speed rail.
Referring to fig. 1, fig. 1 is a diagram of a scenario in which a terminal device on a high-speed rail is identified through frequency offset measurement, in the scenario, a moving speed is estimated through a magnitude of frequency offset, and if the moving speed of the terminal device is consistent with an operating speed of the high-speed rail, the terminal device on the high-speed rail can be considered to be the terminal device. Generally, the faster the base station moves towards the antenna direction, the larger the frequency offset, but when the moving direction is not consistent with the antenna direction, the deviation exists, and the larger the included angle between the moving direction and the antenna direction is, the larger the deviation is. In urban areas with multipath or refraction path as main, the error of estimating the moving speed by applying the method is large. And thus there is also a large error in identifying the mobile terminal on a high-speed rail.
Referring to fig. 2, fig. 2 is a view illustrating a scenario in which a mobile terminal on a high-speed rail is identified by a handover frequency, and in this scenario, a terminal device on the high-speed rail is identified by a method of calculating a speed by inter-station handover. In the scheme, the high-speed rail user is considered to have high moving speed, so that the switching frequency is high, and whether the terminal equipment is the terminal equipment on the high-speed rail is judged by setting a switching frequency threshold. For example, the terminal equipment on the high-speed rail in fig. 2 needs to switch between the cell1 and the cell5 quickly, and the switching frequency is high. However, there is no correlation between the handover frequency and the moving speed of the terminal device, and even if a stationary user may ping-pong handover between a plurality of cells, the handover frequency may meet the requirement and be erroneously determined as a terminal device on a high-speed rail. Therefore, the accuracy rate is low and the false detection rate is high. Moreover, the judgment time delay is larger by the method, and when the judgment is made, the terminal equipment possibly leaves the area.
The above methods have large errors, so that the effect of identifying the terminal equipment on the high-speed rail is poor. Therefore, the embodiment of the application provides a method for identifying terminal equipment on a high-speed rail. The method is mainly applicable to wireless mobile communication systems, including Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), fifth generation mobile communication (5G), and wireless local area network (WIFI). When the wireless mobile communication system covers scenes of high-speed railways, common railways or ship routes, ferries and the like which are many and directionally move at the same time, the method provided by the application can be used for identifying the mobile terminal equipment. Referring to fig. 3, the method includes:
101. and acquiring the number of the mobile events of the terminal equipment in unit time.
And acquiring the number of the mobile events of the terminal equipment in unit time. The base station covering the high-speed rail calculates "density of mobile events" in real time, where the mobile events include, but are not limited to, handover events, measurement reporting events, data transmission events, information change events related to connection between the base station and the terminal device, and may also be any event that may indicate a change in a network environment of the terminal device, and the above example cannot be used as a limitation of the present application. The "moving event density" is the number of moving events of the terminal device per unit time.
For example, if the movement event is a handover event, the number of times of movement time of the terminal device in the unit time is the number of times of handover of the terminal device in the unit time. The number of times of switching may be any one of the number of times of switching in, the number of times of switching out, or the number of times of switching in plus the number of times of switching out. The base station can count the switching-in times and/or switching-out times of the current time window by a sliding window mechanism or a window hopping mechanism on a time axis. And acquiring the switching times of the terminal equipment in unit time according to the switching times of the current time window and the duration of the time window. Specifically, the switching frequency of the terminal device in the unit time may be obtained by dividing the switching frequency of the current time window by the duration of the time window. The number of handovers of the terminal device per unit of time may represent the current "handover event density". If the number of times of switching in unit time is relatively high, it is indicated that the terminal equipment is switched in a centralized manner.
It should be noted that the size of the time window needs to be adjusted according to the size of the handover area covered by the wireless network and the moving speed of the high-speed rail, and may be adjusted to be an appropriate value, which is roughly equal to the length of the handover area divided by the moving speed of the high-speed rail.
Step 101 may be performed to acquire the number of times of the mobile event of the terminal device in unit time for the base station; or the base station sends the number of the mobile events of the terminal equipment to the controller after acquiring the number of the switching times of the terminal equipment in unit time. Determining, by the controller, whether a number of movement events of the terminal device per unit time exceeds a threshold value.
102. And when the number of the mobile events of the terminal equipment in unit time is greater than or equal to a first threshold value, determining that a high-speed rail switching event occurs.
And when the number of the terminal equipment movement events in the unit time determined in the step 101 is greater than or equal to a first threshold value, determining that a high-speed rail switching event occurs. The high-speed rail switching event can be an event that a high-speed rail leaves an area managed by an original base station, or enters an area managed by a next base station, or is positioned in a certain cell at a certain time.
It should be noted that, in step 101, the obtained number of the mobile events of the terminal device in the unit time may be the number of any one or more of a handover event, a measurement report event, a data transmission event, and an information change event related to connection between the base station and the terminal device. In the implementation process, if the selected mobile events are different, the value of the first threshold value may also be adjusted accordingly.
For example, if the number of times of switching in the terminal device in a unit time is obtained in step 101, in step 102, it may be determined that a switching in event occurs in the high-speed rail when the number of times of switching in the terminal device in a unit time is greater than or equal to a first threshold; if the switching-out times of the terminal device in the unit time are acquired in step 101, in step 102, it may be determined that a switching-out event occurs in the high-speed rail when the switching-out times of the terminal device in the unit time is greater than or equal to a first threshold; if the sum of the switching-in times and the switching-out times of the terminal device in the unit time is obtained in step 101, in step 102, it may be determined that a switching event occurs in the high-speed rail when the sum of the switching-in times and the switching-out times of the terminal device in the unit time is greater than or equal to a first threshold; if the measurement report times of the terminal device in the unit time are obtained in step 101, it may be determined in step 102 that a switching event occurs in the high-speed rail when the measurement report times of the terminal device in the unit time are greater than or equal to a first threshold; if the number of times of the change event of the connection related information between the base station and the terminal device in the unit time is obtained in step 101, it may be determined in step 102 that a high-speed rail is determined to have a handover event when the number of times of the change event of the connection related information between the base station and the terminal device in the unit time is greater than or equal to a first threshold. The first threshold may be a preset static threshold, or may be a dynamic threshold, which is not limited herein.
If the base station sends the number of the mobile events of the terminal device per unit time to the controller in step 101, the controller may determine that the number of the mobile events of the terminal device per unit time is greater than or equal to a first threshold, so as to determine that the high-speed rail switching event occurs. Step 102 may also be directly performed by the base station, where the base station determines that the number of times of the mobile event of the terminal device in the unit time is greater than or equal to the first threshold value after acquiring the number of times of the mobile event of the terminal device in the unit time, so as to determine that the high-speed rail switching event occurs.
103. And when the high-speed rail switching event is determined to occur, updating the count value of the number of the high-speed rail switching events of the terminal equipment with the high-speed rail switching event.
And when the high-speed rail switching event is determined to occur, the base station updates the count value of the number of the high-speed rail switching events of the terminal equipment with the high-speed rail switching event. The "count value of the number of times of the high-speed rail switching events" of the terminal device is a count value of the number of times of the high-speed rail switching events which are accumulated when the terminal device generates the high-speed rail switching events. The high-speed rail switching times comprise at least one of high-speed rail switching-in event times, high-speed rail switching-out event times, measurement reporting times, data transmission times and information change event times related to connection between the base station and the terminal equipment of the terminal equipment.
For example, if a terminal device carried by a user experiences two high-speed rail switching events on a high-speed rail, and the terminal device has a high-speed rail switching event during the two high-speed rail switching events, the count value of the number of high-speed rail switching events of the terminal device is 2.
It should be noted that the base station may receive the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event from the upstream base station before updating the count value of the number of times of switching of the terminal device in which the high-speed rail switching event occurs. Specifically, the corresponding relationship may be a table of the identifier of the terminal device and a count value of the number of times of the high-speed rail switching event.
The following table only takes the high-speed rail switch-in event count value and the high-speed rail switch-out event count value as the high-speed rail switch event count value, but the present application is not limited thereto. Please refer to the following table,
it can be understood that, the above table counts the count value of the number of times of the high-speed rail switch-in event and the count value of the number of times of the high-speed rail switch-out event, and in the actual implementation process, only the count value of the number of times of the high-speed rail switch-in event or only the count value of the number of times of the high-speed rail switch-out event may be counted, or any one or several of the number of times of measurement reporting, the number of times of data transmission, and the number of times of change events of the information related to the connection between the base station and the terminal may be counted. And should not be construed as limiting the application herein.
The base station may update the table when it determines that a high-speed rail switching event has occurred. Specifically, if the table does not include an entry corresponding to an identifier of a certain terminal device, and the base station detects that a high-speed rail switch-in event occurs to the terminal device, the identifier of the terminal device is added to the table, and the count value of the number of times of the high-speed rail switch-in event is recorded as 1. Therefore, the passenger can get on the train in the middle of high-speed rail driving, and the terminal equipment carried by the passenger is not detected by the upstream base station and can be added.
If the table already contains an entry corresponding to the identifier of a certain terminal device, and the base station detects that a high-speed rail switch-in event occurs to the terminal device, 1 is added to the count value of the number of the original high-speed rail switch-in events in the table. The foregoing examples are by way of example only and are not intended as limiting of the present application.
It should be noted that step 103 can be directly performed by the base station. If the controller determines that the high-speed rail switching event occurs in step 102, step 104 may be to send the identifier of the terminal device and the switching times to the controller after the base station acquires the identifier of the terminal device that has the high-speed rail switching event and the high-speed rail switching event times, and the controller completes updating the count value of the high-speed rail switching times of the terminal device that has the high-speed rail switching event.
104. And when the count value of the times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events is larger than or equal to a second threshold value, determining that the terminal equipment with the high-speed rail switching events is the terminal equipment on the high-speed rail.
And when the count value of the times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events is larger than or equal to the second threshold value, determining that the terminal equipment with the high-speed rail switching events is the terminal equipment on the high-speed rail. As shown in step 103, the count value of the number of times of the high-speed rail switching event occurs in the terminal device having the high-speed rail switching event may include a count value of the number of times of the high-speed rail switching-in event, the number of times of the high-speed rail switching-out event, the number of times of measurement reporting, the number of times of data transmission, and the number of times of the change event of the connection related information between the base station and the terminal device.
It should be noted that the second threshold may be a preset static threshold or a preset dynamic threshold. And the second threshold value for each base station may not be the same during the high-speed rail line, which is not limited herein.
Step 104 may be performed by the base station. If in step 103, the controller determines that the count value of the number of times of the high-speed rail switching events of the terminal device having the high-speed rail switching event is greater than or equal to the second threshold, the controller may also determine that the terminal device having the high-speed rail switching event is a terminal device on a high-speed rail.
It should be noted that, if step 104 is executed by the base station, after the base station determines that the terminal device having the high-speed rail switching event is a terminal device on a high-speed rail, the base station may further send the corresponding relationship between the identifier of the local terminal device and the count value of the number of high-speed rail switching events to the downstream base station, and delete the corresponding relationship between the locally stored identifier of the terminal device and the count value of the number of high-speed rail switching events.
The method and the device can make full use of the characteristics that the terminal devices are centralized, in the same direction and at the same speed when the user is on the same high-speed rail, and can determine the 'mobile event density' of the terminal devices by determining that the number of times of the mobile events of the terminal devices in unit time is greater than or equal to a first threshold value in a time domain, so as to realize the 'group effect' judgment aiming at the high-speed rail. When a high-speed rail switching event occurs and the count value of the high-speed rail switching event of the terminal equipment with the high-speed rail switching event is greater than or equal to the second threshold value, the terminal equipment with the high-speed rail switching event can be determined to be the terminal equipment on the high-speed rail, the identified high-speed rail user information is transmitted to a subsequent cell or a base station for use, and the subsequent base station can implement differentiation processing on the high-speed rail user so as to improve the high-speed rail user experience. Therefore, the method can simply and reliably judge which users are terminal equipment on the high-speed rail during the high-speed rail switching, and can avoid various reasons of errors in various existing schemes.
Meanwhile, in the framework of the application, a controller may be further provided, please refer to corresponding descriptions in steps 101 to 104, event information, measurement report information, data transmission information, information related to connection between the base station and the terminal, including user identification, event occurrence time and the like, for switching terminal equipment in and out in real time by covering a high-speed rail and a nearby base station are sent to the controller, the controller performs sliding window or jumping window judgment and identification, and then the controller sends an identification result or historical data to a target base station; or the base station judges the sliding window or the jumping window and then sends the statistical table to the controller, and finally the controller sends the identification result or the historical data to the target base station.
The addition of the controller in the architecture has obvious advantages in the transmission of the handover event data. If the target base station is sent to the source base station, the selection of the target base stations needs to be determined in advance, and dynamic adjustment is needed subsequently, so that the implementation mechanism is slightly complex. If the controller carries out data centralized processing, the accuracy can be improved, the time delay is slightly larger but the influence is not large, and the whole identification of the terminal equipment on the high-speed rail can be required to be within 10 seconds of the real-time performance of the time.
Referring to fig. 4, a second embodiment of the present application provides an apparatus 20 for identifying a terminal device on a high-speed rail, where the apparatus 20 is configured to execute the method for identifying a terminal device on a high-speed rail according to the first embodiment, and the apparatus 20 includes:
the obtaining module 201 is configured to obtain the number of times of a mobile event of the terminal device in unit time, where the mobile event includes a handover event, a measurement reporting event, a data transmission event, and an information change event related to connection between a base station and the terminal device.
The obtaining module 201 is further configured to obtain the number of times of the mobile event of the terminal device in the current time window.
The obtaining module 201 is further configured to obtain the number of times of the mobile event of the terminal device in unit time according to the number of times of the mobile event of the terminal device in the current time window and the duration of the current time window, and specifically, the number of times of the mobile event of the terminal device in unit time may be obtained by dividing the number of times of the mobile event of the terminal device in the current time window by the duration of the current time window.
A determining module 202, configured to determine that a high-speed rail switching event occurs when the number of times of the mobile event of the terminal device in the unit time is greater than or equal to a first threshold.
The determining module 202 is further configured to determine that the terminal device having the high-speed rail switching event is a terminal device on a high-speed rail when it is determined that the count value of the number of high-speed rail switching events of the terminal device having the high-speed rail switching event is greater than or equal to a second threshold value.
An updating module 203, configured to update the count value of the number of times of the high-speed rail switching events of the terminal device that has the high-speed rail switching event when the determining module 202 determines that the high-speed rail switching event has occurred.
The updating module 203 is further configured to, when the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event does not include the correspondence between the identifier of the terminal device that has generated the high-speed rail switching event, add the correspondence between the identifier of the terminal device that has generated the high-speed rail switching event and the count value of the number of times of the high-speed rail switching event of the terminal device that has generated the high-speed rail switching event to the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event, and record that the count value of the number of times of the high-speed rail switching event of the terminal device that has generated the high-speed rail switching event is 1.
The updating module 203 is further configured to, when the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event includes the correspondence between the identifiers of the terminal devices having the high-speed rail switching event, add 1 to the count value of the number of times of the high-speed rail switching event in the correspondence between the identifiers of the terminal devices having the high-speed rail switching event.
A receiving module 204, configured to receive a correspondence between an identifier of the terminal device and a count value of the number of high-speed rail switching events.
A sending module 205, configured to send, to the target base station, a correspondence between the identifier of the terminal device and the count value of the number of high-speed rail handover events.
A deleting module 206, configured to delete a locally recorded correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event.
The method and the apparatus for identifying a terminal device on a high-speed rail according to the embodiments of the present invention are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A method of identifying a terminal device on a high-speed rail, the method comprising:
acquiring the times of mobile events of terminal equipment in unit time, wherein the mobile events comprise switching events, measurement reporting events, data transmission events and information change events related to connection between a base station and the terminal equipment;
when the number of times of the mobile events of the terminal equipment in the unit time is greater than or equal to a first threshold value, determining that a high-speed rail switching event occurs;
when the high-speed rail switching event is determined to occur, updating the count value of the number of the high-speed rail switching events of the terminal equipment with the high-speed rail switching event;
and when the counting value of the times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events is larger than or equal to a second threshold value, determining that the terminal equipment with the high-speed rail switching events is the terminal equipment on the high-speed rail.
2. The method according to claim 1, wherein the number of times of the high-speed rail handover event of the terminal device having the high-speed rail handover event includes at least one of a number of times of a high-speed rail handover event of the terminal device, a number of times of a high-speed rail handover event, a number of times of measurement reporting, a number of times of data transmission, and a number of times of an information change event related to connection between the base station and the terminal.
3. The method of claim 1, wherein the obtaining the number of mobile events of the terminal device per unit time comprises:
acquiring the number of times of the mobile event of the terminal equipment in the current time window;
and acquiring the times of the mobile events of the terminal equipment in unit time according to the times of the mobile events of the terminal equipment in the current time window and the duration of the current time window.
4. The method according to any one of claims 1 to 3, wherein before updating the count value of the number of times of high-speed rail switching events of the terminal device where the high-speed rail switching event occurs, the method further comprises:
receiving a corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events;
when the high-speed rail switching event is determined to occur, updating the count value of the number of high-speed rail switching events of the terminal equipment with the high-speed rail switching event comprises the following steps:
if the corresponding relationship between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events does not contain the corresponding relationship between the identifier of the terminal equipment which generates the high-speed rail switching events, adding the corresponding relationship between the identifier of the terminal equipment which generates the high-speed rail switching events and the count value of the times of the high-speed rail switching events of the terminal equipment which generates the high-speed rail switching events, and recording that the count value of the times of the high-speed rail switching events of the terminal equipment which generates the high-speed rail switching events is 1;
and if the corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events contains the corresponding relation between the identifiers of the terminal equipment which generates the high-speed rail switching events, adding 1 to the count value of the times of the high-speed rail switching events in the corresponding relation between the identifiers of the terminal equipment which generates the high-speed rail switching events.
5. The method of claim 4, further comprising:
sending the corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events to a target base station;
and deleting the corresponding relation between the locally recorded identification of the terminal equipment and the count value of the number of times of the high-speed rail switching events.
6. An apparatus for identifying a terminal device on a high-speed rail, the apparatus comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the times of mobile events of terminal equipment in unit time, and the mobile events comprise switching events, measurement reporting events, data transmission events and information change events related to the connection of a base station and the terminal equipment;
the determining module is used for determining that a high-speed rail switching event occurs when the number of times of the mobile events of the terminal equipment in the unit time is greater than or equal to a first threshold value;
the updating module is used for updating the count value of the times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events when the determining module determines that the high-speed rail switching events occur;
the determining module is further configured to determine that the terminal device having the high-speed rail switching event is a terminal device on a high-speed rail when it is determined that the count value of the number of high-speed rail switching events of the terminal device having the high-speed rail switching event is greater than or equal to a second threshold value.
7. The apparatus of claim 6,
the number of times of the high-speed rail switching events of the terminal equipment with the high-speed rail switching events comprises at least one of the number of times of the high-speed rail switching-in events, the number of times of the high-speed rail switching-out events, the number of times of measurement reporting, the number of times of data transmission and the number of times of information change events related to connection between the base station and the terminal of the terminal equipment.
8. The apparatus of claim 6,
the acquisition module is also used for acquiring the times of the mobile events of the terminal equipment in the current time window;
the obtaining module is further configured to obtain the number of times of the mobile event of the terminal device in unit time according to the number of times of the mobile event of the terminal device in the current time window and the duration of the current time window.
9. The apparatus of any one of claims 6 to 8, further comprising:
the receiving module is used for receiving the corresponding relation between the identifier of the terminal equipment and the count value of the times of the high-speed rail switching events;
the updating module is configured to, when the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event does not include the correspondence between the identifier of the terminal device that has generated the high-speed rail switching event, add the correspondence between the identifier of the terminal device that has generated the high-speed rail switching event and the count value of the number of times of the high-speed rail switching event of the terminal device that has generated the high-speed rail switching event to the correspondence between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event, and record that the count value of the number of times of the high-speed rail switching event of the terminal device that has generated the high-speed rail switching event is 1;
the updating module is further configured to add 1 to the count value of the number of times of the high-speed rail switching event in the correspondence relationship between the identifier of the terminal device and the count value of the number of times of the high-speed rail switching event, when the correspondence relationship between the identifier of the terminal device that has generated the high-speed rail switching event includes the correspondence relationship between the identifiers of the terminal devices that have generated the high-speed rail switching event.
10. The apparatus of claim 9, further comprising:
a sending module, configured to send, to a target base station, a correspondence between an identifier of the terminal device and a count value of the number of times of the high-speed rail switching event;
and the deleting module is used for deleting the corresponding relation between the locally recorded identification of the terminal equipment and the count value of the times of the high-speed rail switching events.
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| CN201911417035.4A CN113132436B (en) | 2019-12-31 | 2019-12-31 | Method and device for identifying terminal equipment on high-speed rail |
| PCT/CN2020/124370 WO2021135580A1 (en) | 2019-12-31 | 2020-10-28 | Method and apparatus for identifying terminal device on high-speed rail |
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| CN109246590A (en) * | 2017-06-15 | 2019-01-18 | 上海大唐移动通信设备有限公司 | A kind of rail traffic user identification method and device |
| WO2019095184A1 (en) * | 2017-11-16 | 2019-05-23 | 北京小米移动软件有限公司 | Method and apparatus for determining motion state of user equipment |
| WO2019218358A1 (en) * | 2018-05-18 | 2019-11-21 | 北京小米移动软件有限公司 | Cell reselection method and apparatus, and storage medium |
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| WO2002021119A1 (en) * | 2000-09-04 | 2002-03-14 | The Nippon Signal Co., Ltd. | Flaw detection system |
| CN108377469B (en) * | 2016-11-08 | 2021-06-08 | 中国移动通信集团山西有限公司 | Method, device and system for identifying high-speed rail user |
| CN108271114B (en) * | 2016-12-29 | 2021-06-04 | 北京亿阳信通科技有限公司 | High-speed rail user identification and positioning method and device |
| CN106792754B (en) * | 2016-12-30 | 2020-04-28 | 广东海格怡创科技有限公司 | Method and system for detecting communication user on high-speed rail |
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| CN109246590A (en) * | 2017-06-15 | 2019-01-18 | 上海大唐移动通信设备有限公司 | A kind of rail traffic user identification method and device |
| WO2019095184A1 (en) * | 2017-11-16 | 2019-05-23 | 北京小米移动软件有限公司 | Method and apparatus for determining motion state of user equipment |
| WO2019218358A1 (en) * | 2018-05-18 | 2019-11-21 | 北京小米移动软件有限公司 | Cell reselection method and apparatus, and storage medium |
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