CN208241900U - A kind of NB-IOT road detector - Google Patents
A kind of NB-IOT road detector Download PDFInfo
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- CN208241900U CN208241900U CN201820017174.2U CN201820017174U CN208241900U CN 208241900 U CN208241900 U CN 208241900U CN 201820017174 U CN201820017174 U CN 201820017174U CN 208241900 U CN208241900 U CN 208241900U
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Abstract
The utility model discloses a kind of NB-IOT road detectors, to measure the radio frequency parameter information under service condition and non-traffic state, the accuracy for assessment of improving network quality simultaneously.NB-IoT road detector, comprising: GPS module, for receiving GPS information and being transferred to scan module；Antenna-matching circuit module for receiving radio frequency signal, and is transferred to scan module and terminal module respectively；Scan module is transmitted for measuring the radio frequency parameter information of common frequency multi-cell and being transferred to the exchange according to the radio frequency signal with communication module；Terminal module, the radio frequency parameter information and service quality information for being used to be measured according to the radio frequency signal present access subzone under service condition are simultaneously transferred to the exchange and communication module；The exchange is connect with communication module with host computer, for the information received to be transferred to the host computer.
Description
Technical field
The utility model relates to wireless communication technology field more particularly to a kind of NB-IOT road detectors.
Background technique
This part intends to provides background or context for the embodiments of the present invention stated in claims.This
The description at place recognizes it is the prior art not because not being included in this section.
NB-IoT (Narrow Band-Internet of Things, narrowband Internet of Things) is also known as honeycomb Internet of Things, is rigid
A kind of wireless internet of things just risen, the network have the characteristics that extensively to cover, connect greatly, low-power consumption.NB-IOT is mainly used for low
Transmission rate, the access scene of static or low rate travel.
For network operator when to NB-IOT wireless network planning and optimization, drive test is to the network coverage, network quality, end
Hold the most direct assessment mode of operating status.Common drive test mode has sweep generator drive test, two kinds of terminal drive test of test.Sweep generator
Drive test acquires wireless signal of eating dishes without rice or wine using sweep generator, and real-time perfoming network radio frequency quality analysis is showed in real time by drive test software
Test result, and save LOG (log) and analyzed for background analysis software.Test terminal drive test is surveyed using test terminal
Examination, test emphasis are the working conditions etc. for paying close attention to the scenes such as RF index, service condition, gravity treatment of the terminal in drive test, can be divided
It Ping Gu not network performance of terminal when doing business and not doing business.
Two kinds of drive test modes have the advantages that respective and deficiency respectively.Sweep generator drive test as much as possible can be detected with frequency
Alien-frequency district is reflected more comprehensively to the network coverage, network radio frequency index, and shortcoming is, since sweep generator does not access network,
Not knowing about terminal, whether real work situation is ideal under the current network environment, such as the operational indicators such as cutting off rate.Due to test
Terminal has access to network and does business, so the working condition under current network can be assessed well, but by terminal works
The influence of mode, test terminal is unable to real-time report currently all cell informations, to the network environment especially road of current location
Road coverage condition can not be grasped, and be unfavorable for comprehensively assessing network performance, to can not preferably optimize terminal algorithm, be promoted each
Item operational indicator.
Utility model content
The utility model embodiment provides a kind of NB-IOT road detector, to measure service condition and non-traffic state simultaneously
Under radio frequency parameter information, the accuracy for assessment of improving network quality.
The utility model provides a kind of NB-IoT road detector, including global position system GPS module, antenna-matching circuit mould
Block, scan module, terminal module and exchange and communication module, in which:
The GPS module, for receiving GPS information and being transferred to the scan module；
The antenna-matching circuit module, for receiving radio frequency signal, and be transferred to respectively the scan module and
Terminal module；
The scan module, the radio frequency signal for being exported according to the antenna-matching circuit module are measured with frequency
The radio frequency parameter information of multiple cell, and the GPS information received to the exchange and communication module transmission and the same frequency are more
The radio frequency parameter information of cell；
The terminal module, the radio frequency signal for being exported according to the antenna-matching circuit module, measurement are current
It accesses radio frequency parameter information and service quality information of the cell under service condition and is transferred to the exchange and communication module；
The exchange is connect with communication module with host computer, GPS information and institute for sending the scan module
Radio frequency of the present access subzone that the radio frequency parameter information and the terminal module for stating common frequency multi-cell are sent under service condition
Parameter information and service quality information are transferred to the host computer.
Optionally, the exchange and communication module are also used to receive the GPS information that the host computer is sent, by the GPS
Information is transferred to the terminal module；
The terminal module is also used to carry out time synchronization according to the GPS information and the scan module that receive.
Wherein, the input terminal of the GPS module is connect with GPS antenna, receives GPS information by the input terminal, described
The output end of GPS is connect with the scan module, and the GPS information received is transferred to the frequency sweep by the output end
Module；
The input terminal of the antenna-matching circuit module is connect with radio-frequency antenna, receives less radio-frequency letter by input terminal
Number, the first output end of the antenna-matching circuit module is connect with the scan module, by first output end to institute
Swept-frequency signal output radio frequency signal is stated, the second output terminal of the antenna-matching circuit module and the terminal module connect
It connects, radio frequency signal is exported to the terminal module by the second output terminal；
The first input end of the scan module is connect with the GPS module, by described in first input end reception
GPS information, the second input terminal of the scan module are connect with the first output end that the antenna-matching circuit module exports, and are led to
Cross the radio frequency signal that the second input terminal receives the antenna-matching circuit module output；The output end of the scan module with
The first end of the communication module connects；The same frequency of the GPS information and measurement is transmitted to the communication module by output end
The radio frequency parameter information of multiple cell；
The input terminal of the terminal module is connect with the second output terminal of the antenna-matching circuit module, passes through input terminal
Receive the radio frequency signal of the antenna-matching circuit module output, the output end of the terminal module and the communication module
Second end connection, by output end to communication module transmission terminal module present access subzone the penetrating under service condition
Frequency parameter information and service quality information.
Preferably, the GPS module is connected by serial ports with the scan module.
Preferably, the scan module is connect by Ethernet interface and the exchange with communication module.
Preferably, the terminal module is connect by Ethernet interface and the exchange with communication module.
Preferably, the exchange is connect by Ethernet interface with the host computer with communication module.
Preferably, the GPS information include in include GPS message, carried in the GPS message at least one of following
Information: frame format, geographical location information and temporal information.
Preferably, the scan module is obtained specifically for after receiving the GPS information, parsing the GPS information
Obtain GPS message therein；And the GPS message is encapsulated as data pack protocol/Internet protocol UDP/IP data packet and is sent
To the exchange and communication module, the host computer is sent to communication module by the exchange.
NB-IOT road detector provided by the utility model, further includes:
Power module is used for the respectively described GPS module, antenna-matching circuit module, scan module, terminal module and friendship
It changes and powers with communication module.
NB-IoT road detector provided by the utility model is believed by the radio frequency parameter that scan module obtains common frequency multi-cell
Breath obtains radio frequency parameter information and service quality information of the terminal present access subzone under service condition by terminal module,
Network performance of the terminal under service condition and non-traffic state can be assessed respectively, to improve the standard of network quality assessment
True property.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Structure specifically indicated in the written description, claims, and drawings is achieved and obtained.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and constitutes one of the utility model
Point, the exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the utility model
Improper restriction.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of road detector provided by the utility model；
Fig. 2 is the LOG packet structure of scan module and terminal module in the utility model.
Specific embodiment
In order to obtain the radio frequency parameter information under service condition and non-traffic state, the standard for assessment of improving network quality simultaneously
True property present embodiments provides a kind of NB-IOT road detector.
It is illustrated below in conjunction with preferred embodiment of the Figure of description to the utility model, it should be understood that retouch in this place
The preferred embodiment stated is only used for describing and explaining the present invention, and is not used to limit the utility model, and do not conflicting
In the case where, the feature in the embodiments of the present invention and embodiment can be combined with each other.
As shown in Figure 1, its structural schematic diagram for NB-IoT road detector provided in this embodiment, including GPS module 11,
Antenna-matching circuit module 12, scan module 13, terminal module 14 and exchange and communication module 15, in which:
The GPS module, for receiving GPS information and being transferred to the scan module；
The antenna-matching circuit module, for receiving radio frequency signal, and be transferred to respectively the scan module and
Terminal module；
The scan module, the radio frequency signal for being exported according to the antenna-matching circuit module are measured with frequency
The radio frequency parameter information of multiple cell, and the GPS information received to the exchange and communication module transmission and the same frequency are more
The radio frequency parameter information of cell；
The terminal module, the radio frequency signal for being exported according to the antenna-matching circuit module, measurement are current
It accesses radio frequency parameter information and service quality information of the cell under service condition and is transferred to the exchange and communication module；
The exchange is connect with communication module with host computer, GPS information and institute for sending the scan module
Radio frequency of the present access subzone that the radio frequency parameter information and the terminal module for stating common frequency multi-cell are sent under service condition
Parameter information and service quality information are transferred to the host computer.
Specifically, the input terminal of the GPS module is connect with GPS antenna, receives GPS information, institute by the input terminal
The output end for stating GPS is connect with the scan module, and the GPS information received is transferred to the frequency sweep by the output end
Module；
The input terminal of the antenna-matching circuit module is connect with radio-frequency antenna, receives less radio-frequency letter by input terminal
Number, the first output end of the antenna-matching circuit module is connect with the scan module, by first output end to institute
Swept-frequency signal output radio frequency signal is stated, the second output terminal of the antenna-matching circuit module and the terminal module connect
It connects, radio frequency signal is exported to the terminal module by the second output terminal；
The first input end of the scan module is connect with the GPS module, by described in first input end reception
GPS information, the second input terminal of the scan module are connect with the first output end that the antenna-matching circuit module exports, and are led to
Cross the radio frequency signal that the second input terminal receives the antenna-matching circuit module output；The output end of the scan module with
The first end of the communication module connects；The same frequency of the GPS information and measurement is transmitted to the communication module by output end
The radio frequency parameter information of multiple cell；
The input terminal of the terminal module is connect with the second output terminal of the antenna-matching circuit module, passes through input terminal
Receive the radio frequency signal of the antenna-matching circuit module output, the output end of the terminal module and the communication module
Second end connection, by output end to communication module transmission terminal module present access subzone the penetrating under service condition
Frequency parameter information and service quality information.
Wherein, the GPS module connect with the scan module by serial ports, the scan module by Ethernet interface with
The exchange is connect with communication module, and the exchange is connect by Ethernet interface with the host computer with communication module.
When it is implemented, GPS module is supplied to by serial ports and is swept for obtaining GPS (global positioning system) information
Frequency module；Antenna-matching circuit module can be made of power splitter and match circuit, for keeping scan module and terminal module
Received radio frequency signal gain differential loss is consistent.Terminal module is for carrying out business and monitoring the radio frequency parameter under service condition
Information, signaling, service quality information etc.；Scan module is used for real time scan network radio frequency signal, searches for co-frequency cell and measurement
Its radio frequency parameter information can also carry out spectrum analysis etc.；Exchange with communication module be responsible for terminal module and scan module simultaneously with
The drive test software of host computer is connected and is communicated, and is transmitted by network interface, it is all with the interface of scan module and terminal module
Ethernet interface.It should be noted that road detector provided by the utility model is inputted using same radio frequency, while as terminal module
It is inputted with the radio frequency of scan module.
When it is implemented, the exchange and communication module, are also used to receive the GPS information that the host computer is sent, by institute
It states GPS information and is transferred to the terminal module；The terminal module is also used to according to the GPS information and the frequency sweep received
Module carries out time synchronization.That is NB-IoT road detector provided by the utility model has the function of sync identification.Specifically
Ground, GPS module obtain GPS information by GPS external antenna.GPS information is transferred to scan module by serial ports by GPS module,
Scan module parses GPS acquisition of information GPS message therein, and information entrained by the message of GPS includes at least one of the following:
Frame format, geographical location information, temporal information etc..Scan module is by the geographical location information of parsing and temporal information with UDP/
IP network agreement is transferred to host computer, and host computer parses data packet and obtains GPS message.Terminal passes through and host computer interaction obtains
GPS message, to realize synchronous with scan module.The sync identification of scan module and terminal module is realized through the above structure
Function.
Based on this, in the present embodiment, the scan module, specifically for after receiving the GPS information, described in parsing
GPS information obtains GPS message therein；And the GPS message is encapsulated as data pack protocol/Internet protocol UDP/IP number
It is sent to the exchange and communication module according to packet, is sent to the host computer with communication module by the exchange.
When it is implemented, NB-IoT road detector provided by the utility model further includes power module, for being respectively described
GPS module, antenna-matching circuit module, scan module, terminal module and exchange are powered with communication module.
For NB-IOT wireless network, since protocol side is for the considerations of reducing terminal cost, to its ambulant support
Excessively simplify, it is caused to support in terms of mobility not enough.In practical drive test, test terminal is easy to appear off-grid, or even dead
The case where machine, has seriously affected the commercial result of network.And only with the method for test terminal drive test, due to that can not know
The radio-frequency information of network when drive test, thus can not timely and effectively orient what terminal generated the problems such as off-grid crashes in existing net
Reason.Thus, industry is in urgent need a kind of road measuring device that can position NB-IOT network lower terminal problem.
Terminal mould group and sweep generator nucleus module, are integrated by NB-IoT road detector provided by the utility model from hardware
Together, make the road detector while there is terminal module and scan module.Meanwhile the NB-IoT road detector is furnished with Novel road
The case where surveying software, can doing business to network coverage situation and terminal mould group in real time compares and analyzes, especially to terminal
Network coverage situation when off-grid or crash problem occurs in module synchronizes test analysis.It is original heavy by means of scan module
The functions such as the analysis of superimposition cover degree, common frequency multi-cell RSRP/SINR measurement, spectrum analysis, can more clearly reflect that terminal goes out
Network state when problem helps quickly to position the reason of NB-IOT terminal goes wrong.On the one hand, terminal module can be helped
The reason of quickly orienting the problems such as off-grid crashes assists terminal module or chip manufacturer to promote the reselection algorithm and stabilization of terminal
Property, prevent the serious problems such as off-grid or crash occur when the following existing net application；It on the other hand can be subsequent network Optimization Work
Instruction is proposed, for example overlapping coverage, system bottom are made an uproar etc. can propose specific index request, so that it is guaranteed that being user
The honeycomb Internet of Things of high quality is provided.
When it is implemented, host computer can be PC (PC) machine either handheld terminal, NB-IoT road detector with it is upper
Position machine is communicated by Ethernet interface, and operation has drive test software on host computer.Since NB-IoT realizes scan module and end
Therefore the time synchronization of end module is compared by the data that drive test software can report scan module and terminal module,
It implements function such as:
One, on drive test software, by the radio frequency parameter information PCI (Physical for the common frequency multi-cell that scan module provides
Cell Identifier, Physical Cell Identifier), RSRP (Reference Signal Receiving Power, reference signal
Receive power), SINR (Signal to Interference plus Noise Ratio, Signal to Interference plus Noise Ratio) etc.
The radio frequency parameters information such as PCI, RSRP, SINR of access cell that measurement parameter and terminal module report can carry out in real time
Graphical comparison display.The same parameters of the two are shown in same reference axis, it may be convenient to it is current to evaluate terminal module
The radio-frequency quality ranking of locating access cell, i.e. RSRP ranking.By radio-frequency quality ranking, NB-IoT drive test can also be helped
Instrument positions off-grid or crash problem in real time.
Two, the result of the above radio frequency parameter can also save LOG (log) in real time, be convenient for subsequent further analysis.Frequency sweep
The packet structure that module synchronizes the obtained LOG after time service with terminal module is as shown in Figure 2.
Scan module has common frequency multi-cell reported data, PCI (0)~PCI (n).Drive test software can be by counting in real time
It calculates and carves cell RSRP at the same time less than the cell number detected within first strong 6dB, is i.e. overlapping coverage calculates.It is overlapped coverage
Calculated result can be provided strong help for real-time positioning terminal off-grid or crash problem, it is however generally that, overlapping coverage is high
Region, and the region that interference is more serious, NB-IoT road detector are easy to appear off-grid or crash since mobility support is bad
Etc. serious problems.
Three, it supports the graphical real-time display of terminal ping packet delay and saves LOG.On the basis of measurement parameter comparison,
Performance when business is done for assessment NB-IoT road detector, can be opened ping packet delay test function, be passed through the figure of the test result
Shape interface can carry out real time contrast with measurement parameter (such as RSRP, SINR) figure, divide the biggish situation of time delay
Analysis.
Four, the interference of spectrum analysis localized external is supported.Due to having been carried out time synchronization, the log of frequency sweep spectrum analysis can
It is compared with the fault point log with terminal, facilitates orientation problem.
In NB-IoT road detector provided by the utility model, terminal module is synchronous using identical GPS time service with scan module
Output test result, compared convenient for measurement result, two modules in NB-IoT road detector share same root radio-frequency antenna, day
Lines matching circuit controls differential loss in the reasonable scope, and keeps antenna opening consistent with the differential loss of terminal module to scan module；
Generate overlapping coverage distribution map in real time by drive test software, it is even dead for the decline of quick positioning terminal service feature, off-grid
The serious problems such as machine, and support scan module common frequency multi-cell RSRP, SINR measurement result and terminal module list cell RSRP,
SINR measurement result graphically compares display, to assess terminal present access subzone signal quality locating water in a network
It is flat, it is aobvious to support that scan module common frequency multi-cell PCI measurement result and terminal module list cell PCI measurement result graphically compare
Show, using RSRP as ranking foundation, assesses ranking of the terminal present access subzone PCI in the multiple co-frequency cell PCI of wireless network.
Relative to single NB-IoT road detector, which can obtain network coverage information and common frequency multi-cell radio frequency parameter
Information, convenient for the current network quality of assessment terminal, the original that the positioning serious problems such as NB-IoT terminal off-grid or crash occur
Cause.On the other hand, NB-IoT road detector provided by the utility model can access network and do industry due to being integrated with terminal module
Business, compensating for sweep generator can not be to the deficiency that NB-IoT cellular network traffic performance is assessed.Since metrical information is richer
Richness, drive test software show more comprehensively NB-IoT quality of wireless network information, and orientation problem is quicker.
Although the preferred embodiment of the utility model has been described, once a person skilled in the art knows basic
Creative concept, then additional changes and modifications can be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the scope of the utility model.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of NB-IOT road detector, which is characterized in that including global position system GPS module, antenna-matching circuit module, sweep
Frequency module, terminal module and exchange and communication module, in which:
The GPS module, for receiving GPS information and being transferred to the scan module；
The antenna-matching circuit module for receiving radio frequency signal, and is transferred to the scan module and terminal respectively
Module；
The scan module, the radio frequency signal for being exported according to the antenna-matching circuit module measure how small with frequency
The radio frequency parameter information in area, and the GPS information received to the exchange with communication module transmission and the common frequency multi-cell
Radio frequency parameter information；
The terminal module, the radio frequency signal for being exported according to the antenna-matching circuit module, measurement are currently accessed
Radio frequency parameter information and service quality information of the cell under service condition are simultaneously transferred to the exchange and communication module；
The exchange is connect with communication module with host computer, GPS information for sending the scan module and described same
Radio frequency parameter of the present access subzone that the radio frequency parameter information of frequency multi-cell and the terminal module are sent under service condition
Information and service quality information are transferred to the host computer.
2. NB-IOT road detector as described in claim 1, which is characterized in that
The exchange and communication module are also used to receive the GPS information that the host computer is sent, the GPS information are transferred to
The terminal module；
The terminal module is also used to carry out time synchronization according to the GPS information and the scan module that receive.
3. NB-IOT road detector as claimed in claim 1 or 2, which is characterized in that
The input terminal of the GPS module is connect with GPS antenna, receives GPS information, the output of the GPS by the input terminal
End is connect with the scan module, and the GPS information received is transferred to the scan module by the output end；
The input terminal of the antenna-matching circuit module is connect with radio-frequency antenna, receives radio frequency signal, institute by input terminal
The first output end for stating antenna-matching circuit module is connect with the scan module, by first output end to the frequency sweep
Signal exports radio frequency signal, and the second output terminal of the antenna-matching circuit module connect with the terminal module, passes through
The second output terminal exports radio frequency signal to the terminal module；
The first input end of the scan module is connect with the GPS module, is received the GPS by the first input end and is believed
Breath, the second input terminal of the scan module connect with the first output end that the antenna-matching circuit module exports, by the
Two input terminals receive the radio frequency signal of the antenna-matching circuit module output；The output end of the scan module with it is described
The first end of communication module connects；How small the same frequency for transmitting the GPS information and measurement to the communication module by output end is
The radio frequency parameter information in area；
The input terminal of the terminal module is connect with the second output terminal of the antenna-matching circuit module, is received by input terminal
The of the radio frequency signal of antenna-matching circuit module output, the output end of the terminal module and the communication module
The connection of two ends is joined by output end to radio frequency of the communication module transmission terminal module present access subzone under service condition
Number information and service quality information.
4. NB-IOT road detector as claimed in claim 3, which is characterized in that the GPS module passes through serial ports and the frequency sweep
Module connection.
5. NB-IOT road detector as claimed in claim 3, which is characterized in that the scan module passes through Ethernet interface and described
Exchange is connect with communication module.
6. NB-IOT road detector as claimed in claim 3, which is characterized in that the terminal module passes through Ethernet interface and described
Exchange is connect with communication module.
7. NB-IOT road detector as claimed in claim 1 or 2, which is characterized in that the exchange passes through ether with communication module
Network interface is connect with the host computer.
8. NB-IOT road detector as claimed in claim 1 or 2, which is characterized in that the GPS information include in include GPS
Message carries at least one of following information: frame format, geographical location information and temporal information in the GPS message.
9. NB-IOT road detector as claimed in claim 8, which is characterized in that
The scan module obtains GPS report therein specifically for after receiving the GPS information, parsing the GPS information
Text；And the GPS message is encapsulated as data pack protocol/Internet protocol UDP/IP data packet and is sent to the exchange and leads to
Believe module, is sent to the host computer with communication module by the exchange.
10. NB-IOT road detector as claimed in claim 1 or 2, which is characterized in that further include:
Power module, for the respectively described GPS module, antenna-matching circuit module, scan module, terminal module and exchange with
Communication module power supply.
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| CN201820017174.2U CN208241900U (en) | 2018-01-05 | 2018-01-05 | A kind of NB-IOT road detector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109548050A (en) * | 2018-12-29 | 2019-03-29 | 京信通信技术(广州)有限公司 | Mobile network covers detection device and system |
| CN110429997A (en) * | 2019-07-25 | 2019-11-08 | 中国信息通信研究院 | A kind of wireless performance test method and system |
| CN111328121A (en) * | 2018-12-17 | 2020-06-23 | 中国移动通信集团北京有限公司 | Road testing method and device |
-
2018
- 2018-01-05 CN CN201820017174.2U patent/CN208241900U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111328121A (en) * | 2018-12-17 | 2020-06-23 | 中国移动通信集团北京有限公司 | Road testing method and device |
| CN111328121B (en) * | 2018-12-17 | 2022-06-14 | 中国移动通信集团北京有限公司 | Road testing method and device |
| CN109548050A (en) * | 2018-12-29 | 2019-03-29 | 京信通信技术(广州)有限公司 | Mobile network covers detection device and system |
| CN110429997A (en) * | 2019-07-25 | 2019-11-08 | 中国信息通信研究院 | A kind of wireless performance test method and system |
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