CN111225383B - Method and device for testing NB-IoT terminal - Google Patents

Method and device for testing NB-IoT terminal Download PDF

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Publication number
CN111225383B
CN111225383B CN201811426203.1A CN201811426203A CN111225383B CN 111225383 B CN111225383 B CN 111225383B CN 201811426203 A CN201811426203 A CN 201811426203A CN 111225383 B CN111225383 B CN 111225383B
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China
Prior art keywords
iot
terminal
base station
test base
power value
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CN111225383A (en
Inventor
耿鲁静
徐德平
张斌
孙琛
魏宏
李世光
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China Mobile Communications Group Co Ltd
China Mobile Group Design Institute Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Group Design Institute Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • 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

Abstract

The embodiment of the invention provides a testing method and device of an NB-IoT terminal, wherein the method comprises the following steps: acquiring the network coverage signal strength at the position to be installed of the NB-IoT terminal to be installed; acquiring the receiving sensitivity of an NB-IoT terminal to be installed; and detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed. The embodiment of the invention improves the service opening success rate when the NB-IoT terminal is installed, and reduces the maintenance quantity of the NB-IoT terminal in the later period.

Description

Method and device for testing NB-IoT terminal
Technical Field
The embodiment of the invention relates to the technical field of narrowband Internet of things, in particular to a testing method and device of an NB-IoT terminal.
Background
The narrowband internet of things (Narrow Band Internet of Things, NB-IoT) technology is one of the internet of things technologies, belongs to the wide area low power (Low Power Wide Area, LPWA) technology, and is a radio bearer network for developing internet of things services.
The NB-IoT terminal is a device to be monitored, such as a meter, a smoke sensor, a fire extinguisher, a dustbin, a tracker, and a wearable device, which are formed by integrating the NB-IoT module and the monitored device. The basis of the quality judgment of the NB-IoT terminal is a product qualification certificate at present, but the yield of the NB-IoT terminal is not satisfactory in the initial stage of the current business development and the initial stage of the marketing of the product scale manufacturer, the sensitivity of the communication signals of the same batch of products is very different, and partial products which do not reach the standard are marketed, and in addition, the user has insufficient knowledge of the quality problem of the terminal, so that the individual NB-IoT terminal is unavailable after being installed, and the success rate of opening the business after the installation of the NB-IoT terminal is lower. In addition, because the NB-IOT terminal placement position is not maintained very much, and the user lacks effective detection tools, the available information is less, and therefore long time and labor are consumed when the NB-IOT terminal cannot be used normally and complaints are checked by operation and maintenance personnel of a manufacturer, and the cost of internal resources is high.
In summary, the problems of low service opening rate and high maintenance cost of the NB-IOT terminal after installation exist in the prior art.
Disclosure of Invention
The embodiment of the invention provides a testing method and device for an NB-IOT terminal, which are used for solving the problems of lower service opening rate and higher maintenance cost of the NB-IOT terminal after installation in the prior art.
In order to solve the above problems, in a first aspect, an embodiment of the present invention provides a method for testing an NB-IOT terminal, where the method includes:
acquiring network coverage signal strength at a position to be installed of an NB-IoT terminal of the narrowband internet of things to be installed;
acquiring the receiving sensitivity of an NB-IoT terminal to be installed;
and detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed.
In a second aspect, an embodiment of the present invention provides a testing apparatus for NB-IoT terminals, the apparatus comprising:
the first acquisition module is used for acquiring the network coverage signal strength at the position to be installed of the narrowband internet of things NB-IoT terminal to be installed;
the second acquisition module is used for acquiring the receiving sensitivity of the NB-IoT terminal to be installed;
and the detection module is used for detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed.
In a third aspect, an embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the NB-IoT terminal testing method when the computer program is executed.
In a fourth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the NB-IoT terminal testing method.
According to the method and the device for testing the NB-IoT terminal, the network coverage signal intensity of the NB-IoT terminal to be installed at the position to be installed is obtained, then the receiving sensitivity of the NB-IoT terminal to be installed is obtained, finally whether the NB-IoT terminal to be installed is an available terminal is detected according to the network coverage signal intensity of the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed, whether the NB-IoT terminal to be installed is an available terminal is detected by detecting the obtained network coverage signal intensity of the installation site and the receiving sensitivity of the NB-IoT terminal to be installed before the NB-IoT terminal is installed, and therefore the characteristic that the control and the arrangement position coverage signal are not easy to predict for the quality of the NB-IoT terminal is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart illustrating steps of a method for testing NB-IoT terminals in an embodiment of the present invention;
FIG. 2 shows a block diagram of a testing apparatus for NB-IoT terminals in an embodiment of the present invention;
fig. 3 is a schematic diagram of an entity structure of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a flowchart of steps of a method for testing NB-IoT terminals in an embodiment of the present invention includes the steps of:
step 101: and acquiring the network coverage signal strength of the to-be-installed narrowband internet of things (NB-IoT) terminal at the to-be-installed position.
In this step, specifically, when acquiring the network coverage signal strength at the location to be installed of the NB-IoT terminal, the reference signal received power RSRP value at the location to be installed may be measured by the NB-IoT test terminal having a communication function that is pre-placed at the location to be installed, and then the network coverage signal strength at the location to be installed may be determined according to the RSRP value at the location to be installed measured by the NB-IoT test terminal.
Specifically, the RSRP value measured by the NB-IoT test terminal includes the RSRP value of the serving cell and the RSRP value of the neighbor cell of the serving cell accessed by the NB-IoT test terminal in the current wireless environment.
Specifically, the NB-IoT test terminal has a function of transmitting the measured RSRP value to the microcomputer controller, and can solve the problem that the common NB-IoT terminal cannot feed back the measured RSRP, so that when the NB-IoT test terminal 2 is placed at the position to be installed, for example, the top end of the lamp post of the intelligent street lamp, the wellhead of the intelligent manhole cover, the ceiling slot of the intelligent smoke feeling, and the like, the NB-IoT test terminal can measure the RSRP value at the position to be installed in the current wireless environment. At this point, the NB-IoT test terminal may send the measured RSRP value to the connected microcomputer controller to enable the network coverage signal strength at the location to be installed to be determined by the microcomputer controller.
In addition, in particular, in order to facilitate RSRP value measurement at a location to be installed, an antenna may be directly placed at the location to be installed, and then the NB-IoT test terminal and the antenna are connected through a feeder line, thereby implementing RSRP value measurement at the location to be installed.
In addition, the microcomputer controller mainly refers to an embedded host, and can also be a portable computer, an intelligent terminal and the like; in addition, in particular, the embodiment can also configure a display, a touch screen/a keyboard serving as man-machine interaction input/output equipment for the microcomputer controller, so that a user can interact information with the microcomputer controller.
In addition, specifically, when determining the network coverage signal strength at the location to be installed, the maximum RSRP value among the RSRP values obtained by the NB-IoT test terminal measuring multiple times in the preset time period may be determined as the network coverage signal strength at the location to be installed, and the average value of the preset RSRP values, which are ranked high when the NB-IoT test terminal measuring multiple times, may be determined as the network coverage signal strength at the location to be installed, that is, the specific determination manner of the network coverage signal strength is not specifically limited herein.
Step 102: the receive sensitivity of the NB-IoT terminal to be installed is obtained.
In this step, in particular, it is also necessary to obtain the reception sensitivity of the NB-IoT terminal to be installed, so as to be able to determine whether the NB-IoT terminal to be installed is available according to the reception sensitivity of the NB-IoT terminal to be installed and the network coverage signal strength at the location to be installed.
Step 103: and detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed.
In this step, specifically, when detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the location to be installed and the receiving sensitivity of the NB-IoT terminal to be installed, when detecting that the receiving sensitivity of the NB-IoT terminal to be installed is less than the network coverage signal strength, determining that the NB-IoT terminal to be installed is the available terminal; and when detecting that the receiving sensitivity of the NB-IoT terminal to be installed is greater than or equal to the network coverage signal strength, determining that the NB-IoT terminal to be installed is an unavailable terminal.
By means of the method, before the NB-IoT terminal to be installed is installed, whether the NB-IoT terminal to be installed is available in the installation site or not is detected through comparison of network coverage signal intensity of the installation site and receiving sensitivity of the NB-IoT terminal to be installed, so that the starting success rate of the NB-IoT terminal to be installed after the NB-IoT terminal to be installed is improved, the later maintenance times and difficulty of the NB-IoT terminal are reduced, the processing time and workload are shortened as a whole, and the cost is saved.
In addition, specifically, the obtaining of the receiving sensitivity of the NB-IoT terminal to be installed may include the following steps:
step D1: and controlling the NB-IoT terminal to be installed to be only capable of receiving the transmission signals of the NB-IoT test base station with adjustable preset signal transmission power.
Specifically, the preset NB-IoT test base station has all NB-IoT air interface channels and channel configurations, and can be identified, resided, and an attach or access procedure initiated thereon by the NB-IoT terminal, i.e., can be attached and accessed by the NB-IoT terminal. In addition, the implementation manner of the NB-IoT test base station can be that the NB-IoT test base station is built through a set of chips (a baseband integrated circuit (BBIC) and a Radio Frequency Integrated Circuit (RFIC), and the NB-IoT test base station can also be formed into an open source NB-IoT test base station through a computer (which can also be an intelligent terminal, an embedded terminal and the like) plus a radio frequency (software radio) platform for installing base station program software. Of course, the NB-IoT test base station may also be implemented in other soft-hard combinations, which are not described here.
In this step, when controlling that the NB-IoT terminal to be installed can only receive the signal transmitted by the NB-IoT test base station, the NB-IoT terminal to be installed may be placed in a shielding box capable of shielding external signals, and the signal transmitted by the NB-IoT test base station is guided into the shielding box, so that it is achieved that the NB-IoT terminal to be installed located in the shielding box can only receive the signal transmitted by the NB-IoT test base station guided into the shielding box, but cannot receive the current network signal outside the shielding box.
Step D2: and controlling and adjusting the signal transmitting power of the NB-IoT test base station to a second target power value based on the first target power value.
In this step, specifically, the first target power value is a maximum signal transmission power value corresponding to a random access message sent by the NB-IoT terminal to be installed when the NB-IoT test base station is started, and when the signal transmission power of the NB-IoT test base station is the second target power value, the NB-IoT test base station is started and can receive the random access request message sent by the NB-IoT terminal to be installed.
When controlling and adjusting the signal transmission power of the NB-IoT test base station to be a second target power value taking the first target power value as a reference, controlling and adjusting the signal transmission power of the NB-IoT test base station to be the first target power value; then controlling the NB-IoT test base station to increase a preset power value once every preset time interval by taking the first target power value as a reference, wherein the increase frequency of the preset power value is preset frequency; detecting whether the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed or not when the NB-IoT test base station increases a preset power value each time; when the NB-IoT test base station is detected to receive a random access request message sent by the NB-IoT terminal to be installed, recording a power value at a corresponding moment; and obtaining an average value of all the recorded power values, and determining the average value as the second target power value.
Of course, when detecting that the NB-IoT test base station cannot receive the random access request message sent by the NB-IoT terminal to be installed every time the NB-IoT test base station increases a preset power value, the NB-IoT terminal to be installed may be determined as a suspected unavailable terminal; at this time, the signal transmitting power of the NB-IoT test base station can be controlled and adjusted to be a normal power value, and whether the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed or not is detected; when detecting that the signal transmitting power of the NB-IoT test base station is a normal power value, the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed, and determines that the NB-IoT terminal to be installed is determined to be an unavailable terminal.
Specifically, when controlling and adjusting the signal transmission Power of the NB-IoT test base station to be the first target Power value, the microcomputer controller connected with the NB-IoT test base station may control and adjust the signal transmission Power of the NB-IoT test base station to be the minimum value (set the signal transmission Power parameter nrs-Power-r 13), and then detect, by the microcomputer controller, whether the NB-IoT test base station receives a random access request "RRC Connection Request" message sent by the terminal to be installed; at this time, if it is detected that the NB-IoT test base station receives the random access request message, it is indicated that the receiving sensitivity of the NB-IoT terminal to be installed, which is obtained by testing in this environment, is not the highest receiving sensitivity, that is, the signal transmitted by the NB-IoT test base station is too strong, then the NB-IoT test base station may be turned off at this time, then an attenuator (for example, a 20dB attenuator) is connected to the signal output end of the NB-IoT test base station, and the NB-IoT test base station is restarted, and repeatedly checked whether the NB-IoT test base station receives the random access request message until it is detected that the NB-IoT test base station cannot receive the random access request message.
In addition, specifically, when the NB-IoT test base station is controlled to use the first target power value as a reference, the microcomputer controller may be controlled manually or the microcomputer controller may be controlled automatically to increase the transmission signal power of the NB-IoT test base station by a preset power value (e.g., 2 dB) every preset period (e.g., every 15 s).
In addition, specifically, the preset number of times may be 3 times. Of course, the number of the preset times is not particularly limited herein.
In addition, specifically, when the normal power value of the signal transmitting power is the power value corresponding to the time when the NB-IoT test base station transmits the signal, all the NB-IoT terminals without faults can be accessed and attached, for example, the power value may be 12dBm.
Step D3: and controlling a preset NB-IoT test terminal with a communication function to only be capable of receiving signals transmitted by the NB-IoT test base station and acquiring an RSRP value measured by the NB-IoT test terminal when the signal transmission power of the NB-IoT test base station is a second target power value.
In this step, specifically, when controlling and adjusting the signal transmission power of the NB-IoT test base station to the second target power value, the NB-IoT test terminal is controlled to only be able to receive the transmission signal of the NB-IoT test base station, that is, the radio environment in which the NB-IoT test terminal receives the signal is controlled to be the same as the radio environment in which the NB-IoT terminal is to be installed, and at this time, the RSRP value measured by the NB-IoT test terminal when the signal transmission power of the NB-IoT test base station is the second target power value may be obtained. Specifically, since the NB-IoT test terminal can only receive the signal transmitted by the NB-IoT test base station, i.e., the same environment as the NB-IoT terminal to be installed, the RSRP value measured by the NB-IoT test terminal is equivalent to the RSRP value measured by the NB-IoT terminal to be installed, and at this time, the RSRP value measured by the NB-IoT test terminal can be obtained through the communication function of the NB-IoT test terminal, i.e., is equivalent to obtaining the RSRP value measured by the NB-IoT terminal to be installed.
In addition, specifically, the embodiment may simultaneously place the NB-IoT test terminal in the shielding box, so as to enable the NB-IoT test terminal to only receive the signal transmitted by the NB-IoT test base station; in addition, if the space in the shielding box is smaller, the NB-IoT terminal to be installed can be powered off and taken out from the shielding box, and then the NB-IoT test terminal is placed in the shielding box to receive signals transmitted by the NB-IoT test base station; in addition, the NB-IoT test terminals may also be placed directly outside the shielded box and then receive the signals inside the shielded box through the receive antennas placed inside the shielded box. That is, the specific manner in which the NB-IoT test base station can only receive the signals transmitted by the NB-IoT test base station is not specifically limited herein.
In addition, specifically, when the RSRP value measured by the NB-IoT test terminal when the signal transmission power of the NB-IoT test base station is the second target power value is obtained, the RSRP value sent by the NB-IoT test terminal may be obtained by the microcomputer controller.
Step D4: and determining the RSRP value measured by the NB-IoT test terminal as the receiving sensitivity of the NB-IoT terminal to be installed.
In this step, specifically, after the RSRP value sent by the NB-IoT test terminal is obtained, the RSRP value measured by the NB-IoT test terminal is determined as the reception sensitivity of the NB-IoT terminal to be installed.
In this way, by controlling the transmitting signal power of the NB-IoT test base station in the signal isolation environment, determining the second target power value when the NB-IoT test base station receives the random access request message sent by the NB-IoT terminal to be installed, and taking the RSRP value measured by the NB-IoT test terminal in the same signal scene as the receiving sensitivity of the NB-IoT terminal to be installed, the measurement of the receiving sensitivity of the NB-IoT terminal to be installed is achieved, so that the user can select the NB-IoT terminal suitable for the installation scene with reference to the network coverage signal strength of the installation site according to the receiving sensitivity of the NB-IoT terminal to be installed.
In addition, further, the embodiment may further obtain terminal information of the NB-IoT terminal to be installed after detecting that the NB-IoT terminal to be installed is an available terminal, where the terminal information includes an International Mobile Subscriber Identity (IMSI) and an International Mobile Equipment Identity (IMEI) of the NB-IoT terminal to be installed.
Specifically, when obtaining the terminal information of the NB-IoT terminal to be installed, the method may control and adjust the signal transmitting power of the NB-IoT test base station to a normal power value, and obtain an identification response message when the NB-IoT terminal to be installed is attached to the NB-IoT test base station, where the identification response message carries an IMSI and an IMEI of the NB-IoT terminal to be installed.
In addition, specifically, in this embodiment, when controlling and adjusting the signal transmitting power of the NB-IoT test base station to be a normal power value, the installation position of the NB-IoT terminal to be installed may be obtained through a preset GPS module.
In this way, the embodiment obtains the network coverage signal strength of the to-be-installed location of the to-be-installed NB-IoT terminal and the receiving sensitivity of the to-be-installed NB-IoT terminal, so that whether the to-be-installed NB-IoT terminal is an available terminal can be determined through comparison of the network coverage signal strength of the to-be-installed location and the receiving sensitivity of the to-be-installed NB-IoT terminal, the service opening success rate of terminal installation is improved, the later maintenance amount of the NB-IoT terminal is reduced, the workload of operators and maintenance cost are reduced.
In addition, as shown in fig. 2, a testing apparatus for NB-IoT terminals in an embodiment of the present invention includes:
a first obtaining module 201, configured to obtain a network coverage signal strength at a location to be installed of a narrowband internet of things NB-IoT terminal to be installed;
a second obtaining module 202, configured to obtain a receiving sensitivity of an NB-IoT terminal to be installed;
a detection module 203, configured to detect whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the location to be installed and the reception sensitivity of the NB-IoT terminal to be installed.
According to the testing device for the NB-IoT terminal, provided by the embodiment of the invention, the network coverage signal intensity at the position to be installed of the narrowband internet of things NB-IoT terminal to be installed is obtained through the first obtaining module 201, the receiving sensitivity of the NB-IoT terminal to be installed is obtained through the second obtaining module 202, and whether the NB-IoT terminal to be installed is an available terminal is detected through the detecting module 203 according to the network coverage signal intensity at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed, so that the on-site testing of the NB-IoT terminal to be installed is realized, the service opening success rate in the process of terminal installation is further improved, the maintenance amount of the NB-IoT terminal in the later period is reduced, the workload of operators and maintenance cost is reduced.
Optionally, the first obtaining module 201 includes:
the measuring unit is used for measuring and obtaining a Reference Signal Received Power (RSRP) value at a position to be installed through an NB-IoT test terminal with a communication function which is pre-placed at the position to be installed;
and the first determining unit is used for determining the network coverage signal strength at the position to be installed according to the RSRP value at the position to be installed, which is measured by the NB-IoT test terminal.
Optionally, the second obtaining module 202 includes:
the first control unit is used for controlling the NB-IoT terminal to be installed to only be capable of receiving signals transmitted by the NB-IoT test base station with adjustable signal transmission power, wherein the NB-IoT test base station can be attached and accessed by the NB-IoT terminal;
a second control unit, configured to control and adjust a signal transmission power of the NB-IoT test base station to a second target power value based on a first target power value, where the first target power value is a maximum signal transmission power value corresponding to a situation that the NB-IoT test base station cannot receive a random access message sent by the NB-IoT terminal to be installed when started, and when the signal transmission power of the NB-IoT test base station is the second target power value, the NB-IoT test base station can receive the random access request message sent by the NB-IoT terminal to be installed when started;
a third control unit, configured to control a preset NB-IoT test terminal having a communication function to only receive a signal transmitted by the NB-IoT test base station, and obtain an RSRP value measured by the NB-IoT test terminal when the signal transmission power of the NB-IoT test base station is a second target power value;
and the second determining unit is used for determining the RSRP value measured by the NB-IoT test terminal as the receiving sensitivity of the NB-IoT terminal to be installed.
Optionally, the second control unit includes:
a first control subunit, configured to control and adjust a signal transmission power of the NB-IoT test base station to a first target power value;
a second control subunit, configured to control the NB-IoT test base station to increase a preset power value once every preset period of time based on the first target power value, where the number of increases of the preset power value is a preset number of times;
a detection subunit, configured to detect, when the NB-IoT test base station increases a preset power value each time, whether the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed;
a recording subunit, configured to record, when it is detected that the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed, a power value at a corresponding time;
and the determining subunit is used for acquiring the average value of all the recorded power values and determining the average value as the second target power value.
Optionally, the apparatus further comprises:
a first determining module, configured to determine, when detecting that a preset power value is added to the NB-IoT test base station each time, that the NB-IoT test base station cannot receive a random access request message sent by the NB-IoT terminal to be installed, the NB-IoT terminal to be installed as a suspected unavailable terminal;
the control module is used for controlling and adjusting the signal transmitting power of the NB-IoT test base station to be a normal power value and detecting whether the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed or not;
and the second determining module is used for determining that the NB-IoT terminal to be installed is an unavailable terminal when the signal transmitting power of the NB-IoT test base station is detected to be a normal power value and the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed.
Optionally, the detection module 203 includes:
a third determining unit, configured to determine, when detecting that the reception sensitivity of the NB-IoT terminal to be installed is less than the network coverage signal strength, that the NB-IoT terminal to be installed is an available terminal;
and the fourth determining unit is used for determining that the NB-IoT terminal to be installed is an unavailable terminal when the receiving sensitivity of the NB-IoT terminal to be installed is detected to be greater than or equal to the network coverage signal strength.
Optionally, when the NB-IoT terminal to be installed is detected to be an available terminal, the apparatus further comprises:
a third obtaining module, configured to obtain terminal information of the NB-IoT terminal to be installed, where the terminal information includes an international mobile subscriber identity IMSI and an international mobile equipment identity IMEI of the NB-IoT terminal to be installed; wherein, the liquid crystal display device comprises a liquid crystal display device,
the third obtaining module is configured to control and adjust the signal transmitting power of the NB-IoT test base station to be a normal power value, and obtain an identification response message when the NB-IoT terminal to be installed is attached to the NB-IoT test base station, where the identification response message carries an IMSI and an IMEI of the NB-IoT terminal to be installed.
According to the testing device of the NB-IoT terminal, the network coverage signal intensity at the position to be installed of the NB-IoT terminal to be installed and the receiving sensitivity of the NB-IoT terminal to be installed are obtained, so that whether the NB-IoT terminal to be installed is an available terminal can be determined through comparison of the network coverage signal intensity at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed, the service opening success rate of the NB-IoT terminal during installation is improved, the maintenance amount of the NB-IoT terminal in the later period is reduced, the workload of operators is reduced, and the maintenance cost is reduced.
In addition, as shown in fig. 3, an entity structure schematic diagram of an electronic device according to an embodiment of the present invention may include: processor 310, communication interface (Communications Interface) 320, memory 330 and communication bus 340, wherein processor 310, communication interface 320, memory 330 accomplish communication with each other through communication bus 340. The processor 310 may invoke a computer program stored in the memory 330 and executable on the processor 310 to perform the methods provided by the above embodiments, including, for example: acquiring network coverage signal strength at a position to be installed of an NB-IoT terminal of the narrowband internet of things to be installed; acquiring the receiving sensitivity of an NB-IoT terminal to be installed; and detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed.
Further, the logic instructions in the memory 330 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the methods provided by the above embodiments, for example, comprising: acquiring network coverage signal strength at a position to be installed of an NB-IoT terminal of the narrowband internet of things to be installed; acquiring the receiving sensitivity of an NB-IoT terminal to be installed; and detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A method for testing an NB-IoT terminal, the method comprising:
acquiring network coverage signal strength at a position to be installed of an NB-IoT terminal of the narrowband internet of things to be installed;
acquiring the receiving sensitivity of an NB-IoT terminal to be installed;
detecting whether the NB-IoT terminal to be installed is an available terminal according to the network coverage signal strength at the position to be installed and the receiving sensitivity of the NB-IoT terminal to be installed;
the obtaining the receiving sensitivity of the NB-IoT terminal to be installed includes:
controlling the NB-IoT terminal to be installed to only be capable of receiving signals transmitted by a preset NB-IoT test base station with adjustable signal transmission power, wherein the NB-IoT test base station can be attached and accessed by the NB-IoT terminal;
controlling and adjusting the signal transmitting power of the NB-IoT test base station to be a second target power value taking a first target power value as a reference, wherein the first target power value is a maximum signal transmitting power value corresponding to the situation that the NB-IoT test base station cannot receive a random access message sent by the NB-IoT terminal to be installed when being started, and the NB-IoT test base station can receive the random access request message sent by the NB-IoT terminal to be installed when being started when the signal transmitting power of the NB-IoT test base station is the second target power value;
controlling a preset NB-IoT test terminal with a communication function to only be capable of receiving signals transmitted by the NB-IoT test base station and acquiring an RSRP value measured by the NB-IoT test terminal when the signal transmission power of the NB-IoT test base station is a second target power value;
and determining the RSRP value measured by the NB-IoT test terminal as the receiving sensitivity of the NB-IoT terminal to be installed.
2. The method of claim 1, wherein the obtaining network coverage signal strength at a location to be installed of a narrowband internet of things, NB-IoT, terminal to be installed comprises:
measuring and obtaining a Reference Signal Received Power (RSRP) value at a position to be installed through an NB-IoT test terminal with a communication function which is pre-placed at the position to be installed;
and determining the network coverage signal strength at the position to be installed according to the RSRP value at the position to be installed, which is measured by the NB-IoT test terminal.
3. The method of claim 1, wherein the controlling to adjust the signal transmit power of the NB-IoT test base station to a second target power value that is based on the first target power value comprises:
controlling and adjusting the signal transmitting power of the NB-IoT test base station to be a first target power value;
controlling the NB-IoT test base station to increase a preset power value every preset time period by taking the first target power value as a reference, wherein the increase times of the preset power value are preset times;
detecting whether the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed or not when the NB-IoT test base station increases a preset power value each time;
when the NB-IoT test base station is detected to receive a random access request message sent by the NB-IoT terminal to be installed, recording a power value at a corresponding moment;
an average of all the recorded power values is obtained and the average is determined as the second target power value.
4. The method of claim 3, wherein the detecting whether the NB-IoT test base station receives the random access request message sent by the NB-IoT terminal to be installed each time the NB-IoT test base station increases a preset power value, the method further comprising:
when detecting that the NB-IoT test base station can not receive a random access request message sent by the NB-IoT terminal to be installed every time a preset power value is added, determining the NB-IoT terminal to be installed as a suspected unavailable terminal;
controlling and adjusting the signal transmitting power of the NB-IoT test base station to be a normal power value, and detecting whether the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed;
when detecting that the signal transmitting power of the NB-IoT test base station is a normal power value, the NB-IoT test base station receives a random access request message sent by the NB-IoT terminal to be installed, and determines that the NB-IoT terminal to be installed is determined to be an unavailable terminal.
5. The method of claim 1, wherein the detecting whether the NB-IoT terminal to be installed is an available terminal based on network coverage signal strength at the location to be installed and reception sensitivity of the NB-IoT terminal to be installed comprises:
when detecting that the receiving sensitivity of the NB-IoT terminal to be installed is smaller than the network coverage signal strength, determining that the NB-IoT terminal to be installed is an available terminal;
and when detecting that the receiving sensitivity of the NB-IoT terminal to be installed is greater than or equal to the network coverage signal strength, determining that the NB-IoT terminal to be installed is an unavailable terminal.
6. The method of claim 1, wherein when the NB-IoT terminal to be installed is detected to be an available terminal, the method further comprises:
acquiring terminal information of the NB-IoT terminal to be installed, wherein the terminal information comprises an International Mobile Subscriber Identity (IMSI) and an International Mobile Equipment Identity (IMEI) of the NB-IoT terminal to be installed; wherein, the liquid crystal display device comprises a liquid crystal display device,
the obtaining terminal information of the NB-IoT terminal to be installed includes:
and controlling and adjusting the signal transmitting power of the NB-IoT test base station to be a normal power value, and acquiring an identification response message when the NB-IoT terminal to be installed is attached to the NB-IoT test base station, wherein the identification response message carries the IMSI and the IMEI of the NB-IoT terminal to be installed.
7. A test apparatus for NB-IoT terminals, the apparatus comprising:
the first acquisition module is used for acquiring the network coverage signal strength at the position to be installed of the narrowband internet of things NB-IoT terminal to be installed;
the second acquisition module is used for acquiring the receiving sensitivity of the NB-IoT terminal to be installed;
a detection module, configured to detect whether the NB-IoT terminal to be installed is an available terminal according to network coverage signal strength at the location to be installed and reception sensitivity of the NB-IoT terminal to be installed;
the second acquisition module is further configured to:
controlling the NB-IoT terminal to be installed to only be capable of receiving signals transmitted by a preset NB-IoT test base station with adjustable signal transmission power, wherein the NB-IoT test base station can be attached and accessed by the NB-IoT terminal;
controlling and adjusting the signal transmitting power of the NB-IoT test base station to be a second target power value taking a first target power value as a reference, wherein the first target power value is a maximum signal transmitting power value corresponding to the situation that the NB-IoT test base station cannot receive a random access message sent by the NB-IoT terminal to be installed when being started, and the NB-IoT test base station can receive the random access request message sent by the NB-IoT terminal to be installed when being started when the signal transmitting power of the NB-IoT test base station is the second target power value;
controlling a preset NB-IoT test terminal with a communication function to only be capable of receiving signals transmitted by the NB-IoT test base station and acquiring an RSRP value measured by the NB-IoT test terminal when the signal transmission power of the NB-IoT test base station is a second target power value;
and determining the RSRP value measured by the NB-IoT test terminal as the receiving sensitivity of the NB-IoT terminal to be installed.
8. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the computer program, performs the steps of the NB-IoT terminal testing method recited in any of claims 1-6.
9. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the NB-IoT terminal testing method recited in any of claims 1-6.
CN201811426203.1A 2018-11-27 2018-11-27 Method and device for testing NB-IoT terminal Active CN111225383B (en)

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