CN110650508B - Method for controlling reselection of drive test terminal cell, drive test method, device and drive test instrument - Google Patents
Method for controlling reselection of drive test terminal cell, drive test method, device and drive test instrument Download PDFInfo
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- CN110650508B CN110650508B CN201810596509.5A CN201810596509A CN110650508B CN 110650508 B CN110650508 B CN 110650508B CN 201810596509 A CN201810596509 A CN 201810596509A CN 110650508 B CN110650508 B CN 110650508B
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- 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
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
- H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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Abstract
The invention provides a method for controlling cell reselection of a drive test terminal, a drive test method, a drive test device and a drive test instrument, wherein the method for controlling cell reselection of the drive test terminal comprises the following steps: when the road test terminal meets the preset condition of cell reselection, judging whether the speed of a road test vehicle provided with the road test terminal is greater than a first preset speed threshold value or not; when the speed of the drive test vehicle is greater than the first preset speed threshold, controlling the speed of the drive test vehicle to be less than a second preset speed threshold; sending a cell reselection instruction to the drive test terminal, and controlling the drive test terminal to perform cell reselection; the first preset speed threshold is greater than or equal to the second preset speed threshold. According to the scheme, the reselection delay problem of the drive test terminal in a high-speed mobile scene can be solved, so that the drive test terminal can be guaranteed to have enough time to search the optimal cells one by one for the frequency points, the drive test result cannot be deteriorated due to the reselection delay problem, and the accuracy of coverage optimization evaluation on a wireless network is improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method for controlling cell reselection of a drive test terminal, a drive test method, a drive test device and a drive test instrument.
Background
With the development of communication technology, mobile communication is moving from person-to-person connection to person-to-object and object-to-object connection, and all-object interconnection is a necessary trend. As an Evolution technology of Long Term Evolution (LTE), a narrowband Band-Internet of Things (NB-IoT), also called a cellular Internet of Things, is bound to bring rich application scenarios due to characteristics of wide coverage, large connection, mobility, low power consumption, and the like, and becomes a main connection technology of the Internet of Things. The NB-IOT is mainly used for low transmission rate, static or low mobile rate access scenarios.
When network planning and optimization are carried out on NB-IOT, drive test is the most direct evaluation mode for network coverage, network quality, terminal operation state and the like. However, when performing the drive test, because the existing NB-IOT protocol has a certain limitation on the support of the mobile drive test terminal, the problem that the reselection of the drive test terminal may be delayed frequently during the moving process is caused, the drive test result is poor, and the actual coverage condition of the network cannot be truly reflected.
Disclosure of Invention
The embodiment of the invention provides a drive test method and a drive test instrument, which aim to solve the problem of reselection lag of the existing drive test terminal during drive test.
In order to solve the above problem, in a first aspect, an embodiment of the present invention provides a method for controlling cell reselection of a drive test terminal, including:
when the road test terminal meets the preset condition of cell reselection, judging whether the speed of a road test vehicle provided with the road test terminal is greater than a first preset speed threshold value or not;
when the speed of the drive test vehicle is greater than the first preset speed threshold, controlling the speed of the drive test vehicle to be less than a second preset speed threshold;
sending a cell reselection instruction to the drive test terminal, and controlling the drive test terminal to perform cell reselection;
wherein the first preset speed threshold is greater than or equal to the second preset speed threshold.
In a second aspect, an embodiment of the present invention further provides a drive test method, including:
the method comprises the following steps that a drive test terminal carries out drive test in a cell, and the drive test terminal is arranged on a drive test vehicle;
the drive test terminal receives a cell reselection instruction and performs cell reselection, wherein the cell reselection instruction is determined according to the speed of the drive test vehicle;
and the drive test terminal carries out drive test on the reselected cell to obtain drive test data.
In a third aspect, an embodiment of the present invention further provides an apparatus for controlling cell reselection of a drive test terminal, where the apparatus includes:
the system comprises a first judging module, a second judging module and a third judging module, wherein the first judging module is used for judging whether the speed of a drive test vehicle provided with a drive test terminal is greater than a first preset speed threshold value or not when the drive test terminal meets a preset condition of cell reselection;
the control module is used for controlling the speed of the drive test vehicle to be smaller than a second preset speed threshold when the speed of the drive test vehicle is larger than the first preset speed threshold; the first preset speed threshold is greater than or equal to the second preset speed threshold;
and the sending module is used for sending a cell reselection instruction to the drive test terminal and controlling the drive test terminal to reselect the cell.
In a fourth aspect, an embodiment of the present invention further provides a drive test apparatus, where the drive test apparatus includes the above-mentioned apparatus for controlling cell reselection of a drive test terminal and a drive test terminal, and the drive test terminal is disposed on a drive test vehicle;
the drive test terminal comprises a drive test module and a reselection module;
the drive test module is used for carrying out drive test on the cell and carrying out drive test on the reselected cell to obtain drive test data;
and the reselection module is used for receiving a cell reselection instruction sent by the device for controlling the cell reselection of the drive test terminal and reselecting the cell, wherein the cell reselection instruction is determined according to the speed of the drive test vehicle.
In a fifth aspect, an embodiment of the present invention further provides a drive test instrument, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the method for controlling cell reselection of the drive test terminal, or the steps of the drive test method.
In a sixth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for controlling cell reselection of a drive test terminal or the steps of the drive test method.
In the embodiment of the invention, the movement speed of the drive test terminal is adaptively controlled to assist the drive test terminal to reselect the cell, so that the reselection delay problem of the drive test terminal in a high-speed moving scene can be solved, the drive test terminal can be ensured to have enough time to search the frequency points one by one for the optimal cell, the drive test result cannot be worsened due to the reselection delay problem, the reselection delay problem is reduced, and the accuracy of coverage optimization evaluation on a wireless network is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a flowchart of a method for controlling cell reselection of a drive test terminal according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of drive test according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an apparatus for controlling cell reselection of a drive test terminal according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a drive test apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a road measuring instrument according to an embodiment of the invention;
fig. 6 is a second schematic structural diagram of a road measuring instrument according to an embodiment of the invention.
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 some, not all, embodiments of the present invention. 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.
It is first pointed out that, when performing the drive test, the reason why the drive test terminal has the reselection hysteresis problem during the movement process may be that the movement speed of the drive test terminal is too high. When the drive test terminal is in a high-speed mobile scene, the time for the drive test terminal to pass through the switching area may be shorter than the processing time for switching, so that the corresponding switching process cannot be completed, the time consumed for cell reselection is long, and network problems such as network disconnection, cell reselection failure and the like are easy to occur.
In order to solve the problem of reselection hysteresis of a drive test terminal in a high-speed mobile scene, the embodiment of the invention provides a method for controlling cell reselection of the drive test terminal, which assists the drive test terminal in reselecting a cell by adaptively controlling the moving speed of the drive test terminal, and can ensure that the drive test terminal has enough time to search optimal cells one by one for frequency points, so that a serving cell of the drive test terminal is a first strong cell, namely a cell with the best signal performance, a drive test result cannot be deteriorated due to the reselection hysteresis problem, the occurrence of the reselection hysteresis problem is reduced, and the accuracy of coverage optimization evaluation on a wireless network is further improved. Optionally, the wireless network involved in the embodiments of the present invention may be an NB-IOT.
The method according to the present invention will be described in detail below with reference to examples and drawings.
Referring to fig. 1, an embodiment of the present invention provides a method for controlling cell reselection of a drive test terminal, where the method includes the following steps:
step 101: and when the road test terminal meets the preset condition of cell reselection, judging whether the speed of the road test vehicle provided with the road test terminal is greater than a first preset speed threshold value.
In the embodiment of the present invention, the first preset speed threshold may be preset according to actual requirements, for example, preset to 60 km/s. Optionally, the preset condition for cell reselection may be: and the current time point is a reselection lag point of the drive test terminal.
Step 102: and when the vehicle speed of the drive test vehicle is greater than the first preset speed threshold value, controlling the vehicle speed of the drive test vehicle to be less than a second preset speed threshold value.
In the embodiment of the present invention, the second preset speed threshold may be preset according to actual requirements. And in particular implementation, the first preset speed threshold is greater than or equal to the second preset speed threshold.
Optionally, the manner of controlling the vehicle speed of the drive test vehicle may be: control signaling can be sent to the drive test vehicle; the control signaling is used for instructing the drive test vehicle to adjust the vehicle speed of the drive test vehicle to be less than a second preset speed threshold value.
Step 103: and sending a cell reselection instruction to the drive test terminal, and controlling the drive test terminal to reselect the cell.
Note that the purpose of cell reselection in step 103 is: and ensuring that the service cell of the drive test terminal is the cell with the best signal performance in all cells which can be accessed by the drive test terminal at present. The cell reselection command is determined according to the speed of the drive test vehicle.
Before sending the cell reselection instruction, the device for controlling the cell reselection of the drive test terminal can adjust the cell search mode of the drive test terminal based on the moving speed of the current drive test terminal, namely the adjusted vehicle speed of the corresponding drive test vehicle, so as to ensure the cell reselection process of the drive test terminal. In the process of cell reselection of the drive test terminal, the device for controlling the cell reselection of the drive test terminal can also compare and judge the reselection result in real time so that the drive test terminal resides in the optimal cell. After the cell reselection is performed by the drive test terminal, the reselected cell can be measured to obtain drive test data, and the drive test data is reported. The drive test data may include measurement indicators such as Reference Signal Receiving Power (RSRP), Signal to Interference plus Noise Ratio (SINR) of the reselected cell, and the like.
According to the method for controlling the cell reselection of the drive test terminal, the cell reselection of the drive test terminal is assisted by adaptively controlling the moving speed of the drive test terminal, the problem of reselection delay of the drive test terminal in a high-speed moving scene can be solved, so that the drive test terminal can be guaranteed to have enough time to search optimal cells one by one for frequency points, the drive test result cannot be worsened due to the problem of reselection delay, the problem of reselection delay is reduced, and the accuracy of coverage optimization evaluation of a wireless network is improved.
In this embodiment of the present invention, before step 101, the method further includes:
receiving a signal parameter value of a current serving cell reported by a drive test terminal, and acquiring a maximum signal parameter value;
judging whether the difference value between the signal parameter value of the current serving cell and the maximum signal parameter value is greater than a preset signal parameter value;
the maximum signal parameter value is the maximum one of the signal parameter values of all cells where the drive test terminal is currently located, and the maximum signal parameter value can be obtained by means of a frequency sweep module in the drive test device; and when the difference value is larger than the preset signal parameter value, determining that the preset condition of cell reselection is met.
Further, after the difference is greater than the preset signal parameter value, the method further includes:
judging whether the duration of the difference is greater than a preset time threshold or not;
and when the duration of the difference is greater than the preset time threshold, determining that the preset condition of cell reselection is met.
It is noted that the preset signal parameter value may be preset according to actual requirements. The signal parameter values may include at least one of: RSRP and SINR. For example, when the signal parameter value includes RSRP, the preset RSRP may be preset to 5 dB; when the signal parameter value includes SINR, the preset SINR may be previously set to 5 dB. The preset time threshold may be preset according to actual requirements, for example, preset to 10 s.
Referring to fig. 2, an embodiment of the present invention further provides a drive test method, which is applied to a drive test terminal, and the method includes the following steps:
step 201: the drive test terminal carries out drive test in the district, and the drive test terminal sets up on the drive test vehicle.
Step 202: and the drive test terminal receives a cell reselection instruction and performs cell reselection, wherein the cell reselection instruction is determined according to the speed of the drive test vehicle.
Step 203: and the drive test terminal carries out drive test on the reselected cell to obtain drive test data.
And the drive test terminal can report the drive test data after obtaining the drive test data. The drive test data may include RSRP, SINR, and other measurement indicators.
According to the drive test method provided by the embodiment of the invention, the cell reselection is carried out according to the cell reselection instruction determined by means of the speed of the drive test vehicle, and the drive test is carried out on the reselected cell to obtain the drive test data, so that the drive test terminal has enough time to search the optimal cells one by one for the frequency points, the drive test result is not deteriorated due to the reselection lag problem, the reselection lag problem is reduced, and the accuracy of coverage optimization evaluation on a wireless network is further improved.
Referring to fig. 3, an embodiment of the present invention further provides an apparatus 3 for controlling cell reselection of a drive test terminal, where the apparatus 3 includes:
the first judging module 31 is configured to, when a drive test terminal meets a preset condition for cell reselection, judge whether a vehicle speed of a drive test vehicle provided with the drive test terminal is greater than a first preset speed threshold;
the control module 32 is configured to control the vehicle speed of the drive test vehicle to be less than a second preset speed threshold when the vehicle speed of the drive test vehicle is greater than the first preset speed threshold; the first preset speed threshold is greater than or equal to the second preset speed threshold;
and a sending module 33, configured to send a cell reselection instruction to the drive test terminal, and control the drive test terminal to perform cell reselection.
The device for controlling the cell reselection of the drive test terminal in the embodiment of the invention assists the drive test terminal in reselecting the cell by adaptively controlling the moving speed of the drive test terminal, can solve the reselection lag problem of the drive test terminal in a high-speed moving scene, thereby ensuring that the drive test terminal has enough time to search the optimal cells one by one for frequency points, preventing the drive test result from being worsened due to the reselection lag problem, reducing the occurrence of the reselection lag problem, and further improving the accuracy of coverage optimization evaluation on a wireless network.
In this embodiment of the present invention, optionally, the apparatus further includes:
an obtaining module, configured to receive a signal parameter value of a current serving cell reported by the drive test terminal, and obtain a maximum signal parameter value;
a second judging module, configured to judge whether a difference between the signal parameter value of the current serving cell and the maximum signal parameter value is greater than a preset signal parameter value;
the maximum signal parameter value is the maximum one of the signal parameter values of all the cells where the drive test terminal is currently located; and when the difference value is larger than the preset signal parameter value, determining that the preset condition of cell reselection is met.
Optionally, the apparatus further comprises:
the third judging module is used for judging whether the duration time of the difference value is greater than a preset time threshold value or not after the difference value is greater than the preset signal parameter value;
and when the duration of the difference is greater than the preset time threshold, determining that the preset condition of cell reselection is met.
Optionally, the control module 32 is specifically configured to: sending a control signaling to the drive test vehicle;
the control signaling is used for instructing the drive test vehicle to adjust the vehicle speed of the drive test vehicle to be less than the second preset speed threshold value.
Referring to fig. 4, an embodiment of the present invention further provides a drive test apparatus 4, where the drive test apparatus 4 includes the apparatus 3 for controlling cell reselection of a drive test terminal and a drive test terminal 41, and the drive test terminal 41 is disposed on a drive test vehicle;
the drive test terminal 41 comprises a drive test module 411 and a reselection module 412;
the drive test module 411 is configured to perform drive test on a cell and perform drive test on a reselected cell to obtain drive test data;
the reselection module 412 is configured to receive a cell reselection instruction sent by the device 3 for controlling cell reselection of the drive test terminal, and perform cell reselection, where the cell reselection instruction is determined according to a vehicle speed of a drive test vehicle.
The drive test device 4 of the embodiment of the invention performs cell reselection by controlling the drive test terminal according to the cell reselection command determined by the vehicle speed of the drive test vehicle, performs drive test on the reselected cell to obtain the drive test data, can ensure that the drive test terminal has enough time to perform optimal cell search on frequency points one by one, and can prevent the drive test result from being deteriorated due to the reselection lag problem, reduce the occurrence of the reselection lag problem, and further improve the accuracy of coverage optimization evaluation on a wireless network.
It should be noted that, in specific implementation, the drive test apparatus in the embodiment of the present invention may be integrated into a drive test instrument, which may be an NB-IOT drive test instrument. As shown in fig. 5, the drive test instrument 5 in the embodiment of the present invention may include a power module 51, a GPS module 52, a GPS antenna 53, an antenna matching circuit module 54, a radio frequency input terminal 55, a terminal module (i.e., a drive test terminal) 56, a frequency sweep module 57, a switching and communication module 58, and a drive test analysis module (i.e., a device for controlling cell reselection of the drive test terminal) 59. The power module 51 is responsible for power supply management for other modules; the GPS module 52 is responsible for acquiring GPS information by means of the GPS antenna 53 and providing the GPS information to the frequency sweep module 57 through a serial port; the antenna matching circuit module 54 is responsible for keeping the gain difference loss of the receiving antennas of the terminal module 56 and the sweep frequency module 57 consistent by means of the radio frequency input end 55; the terminal module 56 is responsible for making services and monitoring information such as radio frequency parameters, signaling, service quality and the like when making services; the frequency sweep module 57 is responsible for scanning network radio frequency signals in real time, searching co-frequency cells and measuring radio frequency parameters thereof, acquiring maximum signal parameter values corresponding to the terminal module 56, and performing spectrum analysis and the like; the switching and communication module 58 is responsible for the connection and communication between the terminal module 56 and the sweep frequency module 57 and the drive test analysis module 59, and the corresponding communication information can be transmitted through a network port, which can be an ethernet port; the drive test analysis module 59 can be located in an upper computer and exists in a software form, on one hand, the upper computer is responsible for controlling the terminal module 56 and the frequency sweep module 57, on the other hand, switching and measurement reporting of the terminal module 56 and the frequency sweep module 57 are controlled by configuring radio frequency parameters, bandwidth, test mode selection and the like, on the other hand, judgment is made according to the occurrence of the reselection hysteresis problem, the cell search mode of the terminal module 56 is adjusted in a self-adaptive mode, the measurement data of the terminal module 56 is more accurate, and the problem of the reselection hysteresis of the drive test terminal is solved to the greatest extent.
In addition, the drive test analysis module 59 can also perform connection communication with the vehicle control module 21 installed on the drive test vehicle 2, and perform information interaction with the vehicle control module 21 through the communication network port after the vehicle speed of the drive test vehicle 2 exceeds a certain range, so as to control the drive test vehicle 2 to reduce the vehicle speed to a reasonable range. It should be noted that, in a specific implementation, the vehicle control module 21 may also be integrated inside the road measuring instrument 5, which is not limited in the embodiment of the present invention.
In addition, an embodiment of the present invention further provides a drive test instrument, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, may implement each process of the above-mentioned method for controlling cell reselection of a drive test terminal, or each process of the above-mentioned method for drive test, and may achieve the same technical effects, and therefore, in order to avoid repetition, details are not repeated here.
Specifically, referring to fig. 6, an embodiment of the present invention further provides a road test instrument, where the road test instrument includes a bus 61, a transceiver 62, an antenna 63, a bus interface 64, a processor 65, and a memory 66.
In an embodiment of the present invention, the road measuring instrument further includes: a computer program stored on the memory 66 and executable on the processor 65. Wherein the computer program may, when executed by the processor 65, implement the steps of:
when the road test terminal meets the preset condition of cell reselection, judging whether the speed of a road test vehicle provided with the road test terminal is greater than a first preset speed threshold value or not;
when the speed of the drive test vehicle is greater than the first preset speed threshold, controlling the speed of the drive test vehicle to be less than a second preset speed threshold;
sending a cell reselection instruction to the drive test terminal, and controlling the drive test terminal to perform cell reselection;
wherein the first preset speed threshold is greater than or equal to the second preset speed threshold.
In fig. 6, a bus architecture (represented by bus 61), bus 61 may include any number of interconnected buses and bridges, bus 61 linking together various circuits including one or more processors, represented by processor 65, and memory, represented by memory 66. The bus 61 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 64 provides an interface between the bus 61 and the transceiver 62. The transceiver 62 may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 65 is transmitted over a wireless medium via the antenna 63, and further, the antenna 63 receives the data and transmits the data to the processor 65.
The processor 65 is responsible for managing the bus 61 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory 66 may be used to store data used by the processor 65 in performing operations.
Alternatively, the processor 65 may be a CPU, ASIC, FPGA or CPLD.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored thereon, where the computer program, when executed by a processor, can implement each process of the above method for controlling cell reselection of a drive test terminal or each process of the above method for drive test, and can achieve the same technical effect, and is not described herein again to avoid repetition.
Computer-readable media, which include both non-transitory and non-transitory, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (12)
1. A method for controlling cell reselection of a drive test terminal, the method comprising:
when the road test terminal meets the preset condition of cell reselection, judging whether the speed of a road test vehicle provided with the road test terminal is greater than a first preset speed threshold value or not;
when the speed of the drive test vehicle is greater than the first preset speed threshold, controlling the speed of the drive test vehicle to be less than a second preset speed threshold;
sending a cell reselection instruction to the drive test terminal, and controlling the drive test terminal to perform cell reselection;
wherein the first preset speed threshold is greater than or equal to the second preset speed threshold.
2. The method according to claim 1, wherein before determining whether the vehicle speed of the drive test vehicle provided with the drive test terminal is greater than a first preset speed threshold when the drive test terminal meets a preset condition for cell reselection, the method further comprises:
receiving a signal parameter value of a current serving cell reported by the drive test terminal, and acquiring a maximum signal parameter value;
judging whether the difference value between the signal parameter value of the current serving cell and the maximum signal parameter value is greater than a preset signal parameter value;
the maximum signal parameter value is the maximum one of the signal parameter values of all the cells where the drive test terminal is currently located; and when the difference value is larger than the preset signal parameter value, determining that the preset condition of cell reselection is met.
3. The method of claim 2, wherein after the difference value is greater than the preset signal parameter value, the method further comprises:
judging whether the duration of the difference value is greater than a preset time threshold value or not;
and when the duration of the difference is greater than the preset time threshold, determining that the preset condition of cell reselection is met.
4. The method of claim 1, wherein the controlling the vehicle speed of the drive test vehicle to be less than a second preset speed threshold comprises:
sending a control signaling to the drive test vehicle;
the control signaling is used for instructing the drive test vehicle to adjust the vehicle speed of the drive test vehicle to be less than the second preset speed threshold value.
5. A method of drive test, the method comprising:
the method comprises the following steps that a drive test terminal carries out drive test in a cell, and the drive test terminal is arranged on a drive test vehicle;
receiving a cell reselection instruction, and performing cell reselection, wherein the cell reselection instruction is sent to the drive test terminal after controlling the speed of the drive test vehicle from being greater than a first preset speed threshold value to being less than a second preset speed threshold value; the first preset speed threshold is greater than or equal to the second preset speed threshold;
and performing drive test on the reselected cell to obtain drive test data.
6. An apparatus for controlling cell reselection of a drive test terminal, comprising:
the system comprises a first judging module, a second judging module and a third judging module, wherein the first judging module is used for judging whether the speed of a drive test vehicle provided with a drive test terminal is greater than a first preset speed threshold value or not when the drive test terminal meets a preset condition of cell reselection;
the control module is used for controlling the speed of the drive test vehicle to be smaller than a second preset speed threshold when the speed of the drive test vehicle is larger than the first preset speed threshold; the first preset speed threshold is greater than or equal to the second preset speed threshold;
and the sending module is used for sending a cell reselection instruction to the drive test terminal and controlling the drive test terminal to reselect the cell.
7. The apparatus of claim 6, further comprising:
an obtaining module, configured to receive a signal parameter value of a current serving cell reported by the drive test terminal, and obtain a maximum signal parameter value;
a second judging module, configured to judge whether a difference between the signal parameter value of the current serving cell and the maximum signal parameter value is greater than a preset signal parameter value;
the maximum signal parameter value is the maximum one of the signal parameter values of all the cells where the drive test terminal is currently located; and when the difference value is larger than the preset signal parameter value, determining that the preset condition of cell reselection is met.
8. The apparatus of claim 7, further comprising:
the third judging module is used for judging whether the duration time of the difference value is greater than a preset time threshold value or not after the difference value is greater than the preset signal parameter value;
and when the duration of the difference is greater than the preset time threshold, determining that the preset condition of cell reselection is met.
9. The apparatus of claim 6, wherein the control module is specifically configured to: sending a control signaling to the drive test vehicle;
the control signaling is used for instructing the drive test vehicle to adjust the vehicle speed of the drive test vehicle to be less than the second preset speed threshold value.
10. A drive test apparatus, characterized in that the drive test apparatus comprises the apparatus for controlling cell reselection of a drive test terminal according to any one of claims 6 to 9 and a drive test terminal, the drive test terminal being provided on a drive test vehicle;
the drive test terminal comprises a drive test module and a reselection module;
the drive test module is used for carrying out drive test on the cell and carrying out drive test on the reselected cell to obtain drive test data;
the reselection module is configured to receive a cell reselection instruction sent by the device for controlling cell reselection of the drive test terminal, and perform cell reselection, where the cell reselection instruction is sent to the drive test terminal after controlling the vehicle speed of the drive test vehicle to be greater than a first preset speed threshold value and smaller than a second preset speed threshold value; the first preset speed threshold is greater than or equal to the second preset speed threshold.
11. A drive test meter comprising a memory, a processor and a computer program stored on the memory and being executable on the processor, characterized in that the computer program, when being executed by the processor, carries out the steps of the method of controlling cell reselection of a drive test terminal according to any of the claims 1 to 4 or the steps of the method of drive test according to claim 5.
12. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of controlling cell reselection of a drive test terminal according to any one of claims 1 to 4 or the steps of the method of drive test according to claim 5.
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