CN112566192B - Control method and device, base station and non-transitory computer readable storage medium - Google Patents

Control method and device, base station and non-transitory computer readable storage medium Download PDF

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Publication number
CN112566192B
CN112566192B CN201910919903.2A CN201910919903A CN112566192B CN 112566192 B CN112566192 B CN 112566192B CN 201910919903 A CN201910919903 A CN 201910919903A CN 112566192 B CN112566192 B CN 112566192B
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cell
user equipment
cells
instruction
determining
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CN112566192A (en
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李言兵
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China Mobile Communications Group Co Ltd
China Mobile Group Shandong Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Group Shandong Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a control method and device, a base station and a non-transitory computer readable storage medium. The method comprises the following steps: judging whether the user equipment is in a high-speed moving scene or not; if the user equipment is in a high-speed moving scene, determining the cell type of each first cell in a plurality of first cells, wherein the first cells are adjacent cells of the cell in which the user equipment is currently located, and the cell types comprise a high-speed cell, a common cell and a cell leakage cell; different priorities are set for different cell types, wherein the priority of the cell with the lowest outdoor leakage is the lowest; and sending a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to switch from the cell where the user equipment is currently located to a first cell with high priority. The technical scheme provided by the embodiment of the application avoids the user equipment from being switched to the indoor-outdoor-leakage cell under the high-speed moving scene.

Description

Control method and device, base station and non-transitory computer readable storage medium
Technical Field
The present application relates to the field of communications, and in particular, to a control method and apparatus, a base station, and a non-transitory computer readable storage medium.
Background
When a user is in a high-speed moving scene, for example, when the user drives on a highway or the user takes a high-speed rail, the user equipment (for example, a mobile phone) may be switched to a cell with a leakage, and the cell with the leakage is not suitable for the high-speed moving scene, which may cause poor signal and even disconnection of the user equipment.
Disclosure of Invention
In view of this, the embodiments of the present application provide a control method and apparatus, a base station, and a non-transitory computer readable storage medium for avoiding a user equipment from switching to a cell with a cell leakage in a high-speed mobile scenario.
In a first aspect, an embodiment of the present application provides a control method, which is applied to a base station, where the method includes: judging whether the user equipment is in a high-speed moving scene or not; if the user equipment is in the high-speed moving scene, determining the cell type of each first cell in a plurality of first cells, wherein the first cells are adjacent cells of the cell where the user equipment is currently located, and the cell types comprise a high-speed cell, a common cell and a cell separation leakage cell; different priorities are set for different cell types, wherein the priorities of the indoor-outdoor cell are the lowest; and sending a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to be switched from the cell where the user equipment is currently located to a first cell with high priority.
Further, the determining whether the user equipment is in a high-speed moving scene includes: calculating the motion rate of the user equipment; determining residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located; judging whether the user equipment is in the high-speed moving scene or not according to the movement rate of the user equipment and the residence time of the user equipment in the second cell.
Further, the calculating the motion rate of the user equipment includes: calculating the motion rate of the user equipment according to the following formula: v= (Δf×c)/(f×cos θ), where v represents the motion rate of the user equipment, Δf represents the doppler shift, c represents the propagation velocity of electromagnetic waves, f represents the carrier frequency, and θ represents the angle between the motion direction of the user equipment and the propagation direction of the signal.
Further, the determining a cell type of each of the plurality of first cells includes: and determining the cell type of the first cell according to the frequency of the signal used by the first cell and the residence time of the user of the first cell.
Further, the residence time of the user of the indoor separation leakage cell is longest, and the residence time of the user of the high-speed cell is shortest.
Further, after the first instruction is sent to the user equipment, the method further includes: judging whether the motion rate of the user equipment is reduced to be within a preset rate range; and if the movement rate of the user equipment is reduced to be within the preset rate range, sending a second instruction to the user equipment, wherein the second instruction is used for indicating the user equipment to switch to the common cell.
Further, before the setting of different priorities for different cell types, the method further includes: determining a first direction, wherein the first direction is the movement direction of the user equipment; cells in a direction other than the first direction are filtered.
In a second aspect, an embodiment of the present application provides a control apparatus applied to a base station, where the apparatus includes: the first judging unit is used for judging whether the user equipment is in a high-speed moving scene or not; a first determining unit, configured to determine, if the ue is in the high-speed mobile scenario, a cell type of each of a plurality of first cells, where the first cell is a neighboring cell of a cell where the ue is currently located, where the cell types include a high-speed cell, a normal cell, and a cell leakage cell; a setting unit, configured to set different priorities for different cell types, where the priorities of the indoor-outdoor cells are lowest; and the first sending unit is used for sending a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to be switched from the current cell to the first cell with high priority.
Further, the first judging unit includes: a calculating subunit, configured to calculate a motion rate of the user equipment; a first determining subunit, configured to determine a residence time of the user equipment in a second cell, where the second cell is a previous cell where the user equipment is located; and the judging subunit is used for judging whether the user equipment is in the high-speed moving scene according to the movement rate of the user equipment and the residence time of the user equipment in the second cell.
Further, the computing subunit includes: a calculation module, configured to calculate a motion rate of the user equipment according to the following formula: v= (Δf×c)/(f×cos θ), where v represents the motion rate of the user equipment, Δf represents the doppler shift, c represents the propagation velocity of electromagnetic waves, f represents the carrier frequency, and θ represents the angle between the motion direction of the user equipment and the propagation direction of the signal.
Further, the first determination unit includes: and the second determining subunit is used for determining the cell type of the first cell according to the frequency of the signal used by the first cell and the residence time of the user of the first cell.
Further, the residence time of the user of the indoor separation leakage cell is longest, and the residence time of the user of the high-speed cell is shortest.
Further, the apparatus further comprises: the second judging unit is used for judging whether the motion rate of the user equipment is reduced to be within a preset rate range after the first sending unit sends a first instruction to the user equipment; and the second sending unit is used for sending a second instruction to the user equipment if the movement rate of the user equipment is reduced to be within the preset rate range, wherein the second instruction is used for indicating the user equipment to be switched to the common cell.
Further, the apparatus further comprises: a second determining unit, configured to determine a first direction before the setting unit sets different priorities for different cell types, where the first direction is a movement direction of the user equipment; and the filtering unit is used for filtering the cells in the non-first direction.
In a third aspect, an embodiment of the present application provides a base station, which is characterized in that the base station includes: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of the first aspect.
In a fourth aspect, an embodiment of the present application provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions that cause the computer to perform the method according to the first aspect.
In the embodiment of the application, a base station judges whether user equipment is in a high-speed moving scene or not; if the user equipment is in a high-speed moving scene, determining the cell type of each first cell in a plurality of first cells, wherein the first cells are adjacent cells of the cell in which the user equipment is currently located, and the cell types comprise a high-speed cell, a common cell and a cell leakage cell; different priorities are set for different cell types, wherein the priority of the cell with the lowest outdoor leakage is the lowest; and sending a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to switch from the current cell to the first cell with high priority, and after the user equipment receives the first instruction, switching from the current cell to the first cell with high priority, and the user equipment cannot switch to the cell with the cell leakage because the priority of the cell with the cell leakage is the lowest, so that the user equipment is prevented from switching to the cell with the cell leakage in a high-speed moving scene.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a high-speed moving scene according to a first embodiment of the present application;
FIG. 2 is a flow chart of a control method according to a second embodiment of the present application;
fig. 3 is a schematic diagram of an included angle between a motion direction of a user equipment and a signal propagation direction according to a second embodiment of the present application;
FIG. 4-1 is a flow chart of a control method according to a third embodiment of the present application;
FIG. 4-2 is a flow chart of a control method according to a fourth embodiment of the present application;
fig. 4-3 are flowcharts of a control method according to a fifth embodiment of the present application;
FIGS. 4-4 are flowcharts of a control method according to a sixth embodiment of the present application;
fig. 5 is a schematic diagram of a control device according to a seventh embodiment of the present application.
Detailed Description
For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
Doppler Effect (Doppler Effect): the main content is that the wavelength of the object radiation changes due to the relative motion of the source and the observer. In front of the moving wave source, the wave is compressed, the wavelength becomes shorter, the frequency becomes higher (blue shift); the opposite effect occurs after the moving wave source. The wavelength becomes longer and the frequency becomes lower (red shift); the higher the velocity of the wave source, the greater the effect produced. From the extent of the shift of the wave red (blue), the speed of the wave source moving along the direction of observation can be calculated.
Doppler Shift (Doppler Shift): meaning that when a mobile station moves in a certain direction at a constant rate, a change in phase and frequency is caused due to a propagation path difference, and such a change is generally referred to as a doppler shift. It reveals the law of variation of the properties of the wave in motion.
User equipment: in 3G/4G standards such as LTE (Long Term Evolution ), a terminal is called a UE (User Equipment). The user device may be a cell phone, tablet, notebook or other device.
Example 1
Referring to fig. 1, a schematic diagram of a high-speed moving scene according to a first embodiment of the present application is shown. 10 denotes a base station and 20 denotes a vehicle, wherein the user equipment is located within the vehicle, which is not shown. The vehicle in fig. 1 is merely an example, and is not limited to the embodiment of the present application, and the vehicle may be a high-speed rail or the like.
Example 2
Referring to fig. 2, a flowchart of a control method according to a second embodiment of the present application is shown, where the method is applied to a base station, and the method includes:
step S201: and judging whether the user equipment is in a high-speed moving scene or not.
The high-speed mobile scenario may be defined according to actual requirements, for example, it is defined that the motion rate of the user equipment is greater than or equal to a certain preset rate threshold, and for convenience of description, the preset rate threshold may be referred to as a first preset rate threshold (the preset rate threshold may be 60km/h, 70km/h, 80km/h, etc.), where the user equipment is considered to be in the high-speed mobile scenario.
There are various methods for determining whether the ue is in a high-speed mobile scenario, and several specific descriptions are given below.
Method A: and calculating the motion rate of the user equipment, and judging whether the user equipment is in a high-speed moving scene or not according to the calculated operation rate of the user equipment.
Method B: determining the residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located, and if the residence time of the user equipment in the second cell is smaller than a certain preset time threshold (the preset time threshold can be called a first preset time threshold for convenience of description), determining that the user equipment is in a high-speed moving scene.
Method C: calculating the motion rate of the user equipment; determining residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located; and if the calculated motion rate of the user equipment is greater than or equal to the first preset rate threshold, and the residence time of the user equipment in the second cell is less than a certain preset time threshold, determining that the user equipment is in a high-speed moving scene.
In the above method a, method B and method C, the motion rate of the user equipment may be calculated according to the doppler effect/doppler shift.
Specifically, the motion rate of the user device is calculated according to the following formula: v= (Δf×c)/(f×cos θ), where v denotes the motion rate of the user equipment, Δf denotes the doppler shift, and c denotes the electromagnetic wave propagation speed (c=3×10 8 m/s), f represents the carrier frequency, θ represents the angle between the direction of motion of the user equipment and the direction of signal propagation (as shown in fig. 3). Where c and f are known quantities and θ and Δf can be measured.
In case that the measurement result of θ has a certain error, the calculated motion rate of the user equipment also has a certain error with the true value.
In the method C, not only the calculated movement rate of the user equipment is considered, but also the residence time of the user equipment in the second cell is considered, and even if the movement rate of the user equipment calculated according to the formula has a certain error, the real situation of the movement of the user can be accurately judged by introducing the factors of the residence time, namely, whether the user equipment is in a high-speed moving scene or not.
Step S202: if the user equipment is in a high-speed moving scene, determining the cell type of each first cell in a plurality of first cells, wherein the first cells are adjacent cells of the cell where the user equipment is currently located, and the cell types comprise a high-speed cell, a common cell and a cell leakage cell.
The frequencies of the signals used by the different types of cells are different, and the residence time of the users of the cells is also different.
The determining the cell type of each first cell in the plurality of first cells specifically comprises the following steps: and determining the cell type of the first cell according to the frequency of the signal used by the first cell and the residence time of the user of the first cell. The residence time of the user of the indoor unit leakage cell is longest, the residence time of the user of the high-speed cell is shortest, and the residence time of the user of the common cell is between the residence time of the user of the indoor unit leakage cell and the residence time of the user of the high-speed cell.
Step S203: different priorities are set for different cell types, wherein the priority of the cell with the lowest chamber leakage is set.
Step S204: and sending a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to switch from the cell where the user equipment is currently located to a first cell with high priority.
After receiving the first instruction, the user equipment is switched from the cell where the user equipment is currently located to a first cell with high priority.
As an optional implementation manner, after the base station sends the first instruction to the user equipment, the base station judges whether the motion rate of the user equipment is reduced to be within a preset rate range; if the movement rate of the user equipment is reduced to be within the preset rate range, the base station sends a second instruction to the user equipment, wherein the second instruction is used for indicating the user equipment to switch to the common cell.
In the embodiment of the application, a transition neighbor cell mechanism is added, and the switching is performed to a common cell in a scene of the reduction of the movement rate of the user equipment (for example, the user equipment moves to a corner), and after the movement rate of the user equipment is increased again, the switching is performed to a high-speed cell, so that the risk of dropped calls caused by the network disconnection of the user can be reduced.
As an optional implementation manner, before setting different priorities for different cell types, determining a first direction, where the first direction is a movement direction of the user equipment; cells in a non-first direction are filtered. By identifying the entering direction of the user, the adjacent cells in the moving direction of the non-user are filtered, so that the user equipment cannot be switched to the adjacent cells in the moving direction of the non-user equipment, and the probability of switching to the wrong direction is greatly reduced.
The existing scheme mainly depends on a network planning stage to avoid the cell with the cell leakage, the actual networking situation is complex, the sites cannot be ideal like the planning scheme, the situation that other peripheral sites easily leak signals is avoided, under the high-speed moving scene, if the cell with the cell leakage is serious, user equipment can get off the network, abnormal events such as call drop and the like are caused, and the user experience is affected.
In order to cope with the problems, the embodiment of the application identifies whether the user equipment is in a high-speed moving scene or not, judges the moving direction of the user equipment, further filters the cells in the non-moving direction by the base station, adds the cell with the cell leakage to a blacklist or reduces the priority of the cell with the cell leakage, and the user equipment is not switched to the cell in the non-moving direction or to the cell leakage, thereby realizing the accurate switching of the network and avoiding the problems of off-network and the like caused by the switching of the user equipment to the wrong cell. Compared with the existing method for avoiding through network planning, the scheme provided by the embodiment of the application has the advantages of universality and effectiveness.
Example 3
Referring to fig. 4-1, a flowchart of a control method according to a third embodiment of the present application is shown, and the method is performed by a base station.
Step S402: and judging whether the user equipment is in a high-speed moving scene or not. If yes, go to step S404; if not, step S408 is performed.
The high-speed mobile scenario may be defined according to actual requirements, for example, it is defined that the motion rate of the user equipment is greater than or equal to a certain preset rate threshold, and for convenience of description, the preset rate threshold may be referred to as a first preset rate threshold (the preset rate threshold may be 60km/h, 70km/h, 80km/h, etc.), where the user equipment is considered to be in the high-speed mobile scenario.
There are various methods for determining whether the ue is in a high-speed mobile scenario, and several specific descriptions are given below.
Method A: and calculating the motion rate of the user equipment, and judging whether the user equipment is in a high-speed moving scene or not according to the calculated operation rate of the user equipment.
Method B: determining the residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located, and if the residence time of the user equipment in the second cell is smaller than a certain preset time threshold (the preset time threshold can be called a first preset time threshold for convenience of description), determining that the user equipment is in a high-speed moving scene.
Method C: calculating the motion rate of the user equipment; determining residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located; and if the calculated motion rate of the user equipment is greater than or equal to the first preset rate threshold, and the residence time of the user equipment in the second cell is less than a certain preset time threshold, determining that the user equipment is in a high-speed moving scene.
In the above method a, method B and method C, the motion rate of the user equipment may be calculated according to the doppler effect/doppler shift.
Specifically, the motion rate of the user device is calculated according to the following formula: v= (Δf×c)/(f×cos θ), where v denotes the motion rate of the user equipment, Δf denotes the doppler shift, and c denotes the electromagnetic wave propagation speed (c=3×10 8 m/s), f represents the carrier frequency, θ represents the angle between the direction of motion of the user equipment and the direction of signal propagation (as shown in fig. 3). Where c and f are known quantities and θ and Δf can be measured.
In case that the measurement result of θ has a certain error, the calculated motion rate of the user equipment also has a certain error with the true value.
In the method C, not only the calculated movement rate of the user equipment is considered, but also the residence time of the user equipment in the second cell is considered, and even if the movement rate of the user equipment calculated according to the formula has a certain error, the real situation of the movement of the user can be accurately judged by introducing the factors of the residence time, namely, whether the user equipment is in a high-speed moving scene or not.
Step S404: and determining the cell types of N adjacent cells of the cell in which the user equipment is currently located.
N is a natural number, and may be set according to practical requirements, for example, let n=6.
Cell types include high speed cells, normal cells, and cell-division overlay cells.
The frequencies of the signals used by the different types of cells are different, and the residence time of the users of the cells is also different.
The method for determining the cell type of the cell specifically comprises the following steps: and determining the cell type of the cell according to the frequency of the signal used by the cell and the residence time of the user of the cell. The residence time of the user of the indoor unit leakage cell is longest, the residence time of the user of the high-speed cell is shortest, and the residence time of the user of the common cell is between the residence time of the user of the indoor unit leakage cell and the residence time of the user of the high-speed cell.
Step S406: and sending an instruction I1 to the user equipment, wherein the instruction I1 is used for instructing the user equipment to switch to a high-speed cell in the N cells.
Step S408: and judging whether the user equipment is decelerated to a preset speed range. If yes, go to step S410; if not, step S402 is performed.
Step S410: and determining the cell types of N adjacent cells of the cell in which the user equipment is currently located.
Step S412: and sending an instruction I2 to the user equipment, wherein the instruction I2 is used for instructing the user equipment to switch to a common cell in the N cells.
In the embodiment of the application, a transition neighbor cell mechanism is added, and the switching is performed to a common cell in a scene of the reduction of the movement rate of the user equipment (for example, the user equipment moves to a corner), and after the movement rate of the user equipment is increased again, the switching is performed to a high-speed cell, so that the risk of dropped calls caused by the network disconnection of the user can be reduced.
Example 4
Referring to fig. 4-2, a flowchart of a control method according to a fourth embodiment of the present application is shown, and the method is performed by a base station. In comparison with fig. 4-1, fig. 4-2 adds steps S403 and S409, and the remaining steps with the same reference numerals correspond to the same steps.
Step S402: and judging whether the user equipment is in a high-speed moving scene or not. If yes, go to step S403; if not, step S408 is performed.
Step S403: cells in the direction of motion of the non-user equipment are filtered out. By filtering out the neighboring cells in the non-user movement direction, the user equipment will not switch to the neighboring cells in the non-user movement direction, thereby greatly reducing the probability of switching to the wrong direction.
Step S404: and determining the cell types of N adjacent cells of the cell in which the user equipment is currently located.
Step S406: and sending an instruction I1 to the user equipment, wherein the instruction I1 is used for instructing the user equipment to switch to a high-speed cell in the N cells.
Step S408: and judging whether the user equipment is decelerated to a preset rate range. If yes, go to step S410; if not, step S402 is performed.
Step S409: cells in the direction of motion of the non-user equipment are filtered out. By filtering out the neighboring cells in the non-user movement direction, the user equipment will not switch to the neighboring cells in the non-user movement direction, thereby greatly reducing the probability of switching to the wrong direction.
Step S410: and determining the cell types of N adjacent cells of the cell in which the user equipment is currently located.
Step S412: and sending an instruction I2 to the user equipment, wherein the instruction I2 is used for instructing the user equipment to switch to a common cell in the N cells.
Example 5
Referring to fig. 4-3, a flowchart of a control method according to a fifth embodiment of the present application is shown, and the method is performed by a base station. Step S402 and step S408 correspond to step S402 and step S408 in FIG. 4-1, respectively.
Step S402: and judging whether the user equipment is in a high-speed moving scene or not.
Step S404': and determining the cell types of N adjacent cells of the cell where the user equipment is currently located, and setting the priorities of the N cells, wherein the priority of the high-speed cell is higher than the priority of the common cell and the priority of the outdoor cell.
Cell types include high speed cells, normal cells, and cell-division overlay cells.
The frequencies of the signals used by the different types of cells are different, and the residence time of the users of the cells is also different.
The method for determining the cell type of one cell specifically comprises the following steps: and determining the cell type of the cell according to the frequency of the signal used by the cell and the residence time of the user of the cell. The residence time of the user of the indoor unit leakage cell is longest, the residence time of the user of the high-speed cell is shortest, and the residence time of the user of the common cell is between the residence time of the user of the indoor unit leakage cell and the residence time of the user of the high-speed cell.
Step S406': and sending an instruction I3 to the user equipment, wherein the instruction I3 is used for instructing the user equipment to switch to the cell with the highest priority in the N cells.
Step S408: and judging whether the user equipment is decelerated to a preset rate range.
Step S410': and determining the cell types of N adjacent cells of the cell where the user equipment is currently located, and setting the priorities of the N cells, wherein the priority of the common cell > the priority of the high-speed cell > the priority of the compartment leakage cell.
Example 6
Referring to fig. 4-4, a flowchart of a control method according to a sixth embodiment of the present application is shown, and the method is performed by a base station. In comparison with fig. 4-3, fig. 4-4 adds steps S403 and S409, and the remaining steps with the same reference numerals correspond to the same. Step S403 and step S409 added in fig. 4-4 correspond to step S403 and step S409 in fig. 4-2, respectively.
Step S402: and judging whether the user equipment is in a high-speed moving scene or not.
Step S403: cells in the direction of movement of the non-user equipment are filtered out.
Step S404': and determining the cell types of N adjacent cells of the cell where the user equipment is currently located, and setting the priorities of the N cells, wherein the priority of the high-speed cell is higher than the priority of the common cell and the priority of the outdoor cell.
Step S406': and sending an instruction I3 to the user equipment, wherein the instruction I3 is used for instructing the user equipment to switch to the cell with the highest priority in the N cells.
Step S408: and judging whether the user equipment is decelerated to a preset rate range.
Step S409: cells in the direction of movement of the non-user equipment are filtered out.
Step S410': and determining the cell types of N adjacent cells of the cell where the user equipment is currently located, and setting the priorities of the N cells, wherein the priority of the common cell > the priority of the high-speed cell > the priority of the compartment leakage cell.
The control method provided by the embodiment of the application is not only suitable for switching among cells covered by the same base station, but also suitable for switching among cells covered by different base stations. In the case of handover between cells covered by different base stations, the method provided by the embodiment of the application is executed by the latter base station, and the two base stations communicate through the X2 port standard signaling. The X2 standard signaling contains history information of the ue, including cell information where the ue is currently located, history cell information, and the like.
Example 7
Referring to fig. 5, a schematic diagram of a control apparatus according to a seventh embodiment of the present application is shown, where the apparatus is applied to a base station, and the apparatus includes: a first judging unit 11, a first determining unit 12, a setting unit 13, a first transmitting unit 14.
A first judging unit 11 is configured to judge whether the user equipment is in a high-speed moving scenario.
The first determining unit 12 is configured to determine, if the user equipment is in a high-speed moving scenario, a cell type of each of a plurality of first cells, where the first cell is a neighboring cell of a cell where the user equipment is currently located, where the cell types include a high-speed cell, a normal cell, and a cell leakage cell.
A setting unit 13 for setting different priorities for different cell types, wherein the priorities of the cell with the lowest cell leakage are the same.
A first sending unit 14, configured to send a first instruction to the user equipment, where the first instruction is used to instruct the user equipment to switch from the current cell to the first cell with high priority.
Alternatively, the first judgment unit 11 includes: the device comprises a calculating subunit, a first determining subunit and a judging subunit.
And the calculating subunit is used for calculating the motion rate of the user equipment.
A first determining subunit, configured to determine a residence time of the user equipment in a second cell, where the second cell is a previous cell where the user equipment is located.
And the judging subunit is used for judging whether the user equipment is in a high-speed moving scene according to the motion rate of the user equipment and the residence time of the user equipment in the second cell.
Optionally, the computing subunit comprises: and a calculation module.
A calculation module, configured to calculate a motion rate of the user equipment according to the following formula:
v= (Δf×c)/(f×cos θ), where v denotes the motion rate of the user equipment, Δf denotes the doppler shift, c denotes the electromagnetic wave propagation velocity, f denotes the carrier frequency, and θ denotes the angle between the motion direction of the user equipment and the signal propagation direction.
Alternatively, the first determination unit 12 includes: and a second determination subunit.
And the second determining subunit is used for determining the cell type of the first cell according to the frequency of the signal used by the first cell and the residence time of the user of the first cell.
Optionally, the residence time of the user of the indoor unit of the outdoor unit is longest, and the residence time of the user of the high-speed unit is shortest.
Optionally, the apparatus further comprises: the second judging unit and the second sending unit.
And a second judging unit, configured to judge whether the movement rate of the user equipment is reduced to be within the preset rate range after the first sending unit 14 sends the first instruction to the user equipment.
And the second sending unit is used for sending a second instruction to the user equipment if the movement rate of the user equipment is reduced to be within a preset rate range, wherein the second instruction is used for indicating the user equipment to be switched to a common cell.
Optionally, the apparatus further comprises: the second determining unit and the filtering unit.
A second determining unit, configured to determine a first direction before the setting unit 13 sets different priorities for different cell types, where the first direction is a movement direction of the user equipment.
And the filtering unit is used for filtering the cells in the non-first direction.
The embodiment of the application provides a base station, which comprises: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, the processor invoking the program instructions capable of performing the steps of: judging whether the user equipment is in a high-speed moving scene or not; if the user equipment is in a high-speed moving scene, determining the cell type of each first cell in a plurality of first cells, wherein the first cells are adjacent cells of the cell in which the user equipment is currently located, and the cell types comprise a high-speed cell, a common cell and a cell leakage cell; different priorities are set for different cell types, wherein the priority of the cell with the lowest outdoor leakage is the lowest; and sending a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to switch from the cell where the user equipment is currently located to a first cell with high priority.
Optionally, the processor caller instructions are further capable of performing the steps of: calculating the motion rate of the user equipment; determining residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located; judging whether the user equipment is in a high-speed moving scene or not according to the movement rate of the user equipment and the residence time of the user equipment in the second cell.
Optionally, the processor caller instructions are further capable of performing the steps of: calculating the motion rate of the user equipment according to the following formula: v= (Δf×c)/(f×cos θ), where v denotes the motion rate of the user equipment, Δf denotes the doppler shift, c denotes the electromagnetic wave propagation velocity, f denotes the carrier frequency, and θ denotes the angle between the motion direction of the user equipment and the signal propagation direction.
Optionally, the processor caller instructions are further capable of performing the steps of: and determining the cell type of the first cell according to the frequency of the signal used by the first cell and the residence time of the user of the first cell.
Optionally, the processor caller instructions are further capable of performing the steps of: after a first instruction is sent to the user equipment, judging whether the movement rate of the user equipment is reduced to be within a preset rate range; and if the movement rate of the user equipment is reduced to be within the preset rate range, sending a second instruction to the user equipment, wherein the second instruction is used for indicating the user equipment to switch to the common cell.
Optionally, the processor caller instructions are further capable of performing the steps of: before different priorities are set for different cell types, determining a first direction, wherein the first direction is the movement direction of user equipment; cells in a non-first direction are filtered.
The embodiment of the application provides a non-transitory computer readable storage medium, which stores computer instructions that cause a base station to execute the following steps: judging whether the user equipment is in a high-speed moving scene or not; if the user equipment is in a high-speed moving scene, determining the cell type of each first cell in a plurality of first cells, wherein the first cells are adjacent cells of the cell in which the user equipment is currently located, and the cell types comprise a high-speed cell, a common cell and a cell leakage cell; different priorities are set for different cell types, wherein the priority of the cell with the lowest outdoor leakage is the lowest; and sending a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to switch from the cell where the user equipment is currently located to a first cell with high priority.
Optionally, the computer instructions further cause the base station to: calculating the motion rate of the user equipment; determining residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located; judging whether the user equipment is in a high-speed moving scene or not according to the movement rate of the user equipment and the residence time of the user equipment in the second cell.
Optionally, the computer instructions further cause the base station to: calculating the motion rate of the user equipment according to the following formula: v= (Δf×c)/(f×cos θ), where v denotes the motion rate of the user equipment, Δf denotes the doppler shift, c denotes the electromagnetic wave propagation velocity, f denotes the carrier frequency, and θ denotes the angle between the motion direction of the user equipment and the signal propagation direction.
Optionally, the computer instructions further cause the base station to: and determining the cell type of the first cell according to the frequency of the signal used by the first cell and the residence time of the user of the first cell.
Optionally, the computer instructions further cause the base station to: after a first instruction is sent to the user equipment, judging whether the movement rate of the user equipment is reduced to be within a preset rate range; and if the movement rate of the user equipment is reduced to be within the preset rate range, sending a second instruction to the user equipment, wherein the second instruction is used for indicating the user equipment to switch to the common cell.
Optionally, the computer instructions further cause the base station to: before different priorities are set for different cell types, determining a first direction, wherein the first direction is the movement direction of user equipment; cells in a non-first direction are filtered.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the elements is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The integrated units implemented in the form of software functional units described above may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a Processor (Processor) to perform part of the steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.

Claims (7)

1. A control method, applied to a base station, the method comprising:
judging whether the user equipment is in a high-speed moving scene or not;
if the user equipment is in the high-speed moving scene, determining the cell type of each first cell in a plurality of first cells, wherein the first cells are adjacent cells of the cell where the user equipment is currently located, and the cell types comprise a high-speed cell, a common cell and a cell separation leakage cell;
different priorities are set for different cell types, wherein the priorities of the indoor-outdoor cell are the lowest; transmitting a first instruction to the user equipment, wherein the first instruction is used for indicating the user equipment to switch from a cell where the user equipment is currently located to a first cell with high priority;
wherein before the setting of different priorities for different cell types, the method further comprises:
determining a first direction, wherein the first direction is the movement direction of the user equipment;
filtering cells in a direction other than the first direction;
determining the cell type of each first cell in a plurality of first cells comprises determining the cell type of the first cell according to the frequency of a signal used by the first cell and the residence time of a user of the first cell, wherein the residence time of the user of the indoor-outdoor-leakage cell is longest, and the residence time of the user of the high-speed cell is shortest.
2. The method of claim 1, wherein determining whether the user device is in a high-speed mobile scenario comprises:
calculating the motion rate of the user equipment;
determining residence time of the user equipment in a second cell, wherein the second cell is the last cell in which the user equipment is located;
judging whether the user equipment is in the high-speed moving scene or not according to the movement rate of the user equipment and the residence time of the user equipment in the second cell.
3. The method of claim 2, wherein said calculating a rate of motion of said user device comprises:
calculating the motion rate of the user equipment according to the following formula:
v= (Δf×c)/(f×cos θ), where v represents the motion rate of the user equipment, Δf represents the doppler shift, c represents the propagation velocity of electromagnetic waves, f represents the carrier frequency, and θ represents the angle between the motion direction of the user equipment and the propagation direction of the signal.
4. A method according to claim 3, wherein after said sending the first instruction to the user equipment, the method further comprises:
judging whether the motion rate of the user equipment is reduced to be within a preset rate range;
and if the movement rate of the user equipment is reduced to be within the preset rate range, sending a second instruction to the user equipment, wherein the second instruction is used for indicating the user equipment to switch to the common cell.
5. A control apparatus for use in a base station, the apparatus comprising:
the first judging unit is used for judging whether the user equipment is in a high-speed moving scene or not;
a first determining unit, configured to determine, if the ue is in the high-speed mobile scenario, a cell type of each of a plurality of first cells, where the first cell is a neighboring cell of a cell where the ue is currently located, where the cell types include a high-speed cell, a normal cell, and a cell leakage cell;
a setting unit, configured to set different priorities for different cell types, where the priorities of the indoor-outdoor cells are lowest;
a first sending unit, configured to send a first instruction to the user equipment, where the first instruction is used to instruct the user equipment to switch from a cell where the user equipment is currently located to a first cell with a high priority;
wherein the apparatus further comprises:
a second determining unit, configured to determine a first direction, where the first direction is a movement direction of the user equipment;
and the filtering unit is used for filtering the cells in the non-first direction.
6. A base station, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1-4.
7. A non-transitory computer readable storage medium storing computer instructions that cause the computer to perform the method of any one of claims 1 to 4.
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