CN102711132A - Indoor wireless network quality evaluation method, evaluation device and evaluation system - Google Patents
Indoor wireless network quality evaluation method, evaluation device and evaluation system Download PDFInfo
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Abstract
The invention provides an indoor wireless network quality evaluation method, an evaluation device and an evaluation system, wherein the method comprises the following steps that the power parameters of a community to be evaluated which are reported by all user terminals when the community is free are acquired; and the indoor wireless network coverage quality of the community to be evaluated is determined according to the power parameters and a preset evaluation threshold which corresponds to the power parameters, so that the comprehensiveness and the accuracy in evaluating the indoor network coverage quality of a user living environment is improved, the defects in a manual drive test (DT)/call quality test (CQT) are overcome, and the cost is reduced.
Description
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of indoor wireless networks quality evaluation methods, devices and systems.
Background technology
Along with development of Communication Technique, wireless network has brought easily life for people, and along with cellphone subscriber's continuous increase, the pressure of wireless network also constantly increases, and therefore, the test and appraisal and the optimization work of the wireless network covering quality of each sub-district is seemed particularly important.
For the assessment of outdoor wireless networks covering quality, generally (Drive Test DT) assesses through drive test; The assessment of the indoor wireless networks covering quality of living for the user is relatively complicated; Thereby generally be to calculate evaluation and test indoor wireless networks covering quality according to outdoor drive test result and indoor penetration loss; Perhaps (Call Quality Test CQT) evaluates and tests in indoor call quality test of fixing a point.
But, the indoor wireless environments significant difference that outdoor wireless environment and user live, the method precision of evaluating and testing the internal home network covering quality through outdoor Drive Test indirectly is not enough; And the CQT test mode of indoor fixed point has limitation inadequately owing to receive test terminal, test specification and testing time restriction comprehensively, and more how recessive problem can't expose; And the quantities through DT/CQT testing evaluation indoor wireless networks covering quality is big, and cost is high.
Summary of the invention
To the above-mentioned defective of prior art, the embodiment of the invention provides a kind of indoor wireless networks quality evaluation methods, devices and systems.
One aspect of the present invention provides a kind of indoor wireless networks quality evaluation method, comprising:
Obtain sub-district to be measured in the sub-district when not busy all user terminals and base station carry out the power parameter of Signalling exchange, wherein, said sub-district is the minimum time period of telephone traffic in the said sub-district to be measured a day during spare time;
Confirm the indoor wireless networks covering quality of said sub-district to be measured according to said power parameter and the preset test and appraisal thresholding corresponding with said power parameter.
The present invention provides a kind of indoor wireless networks quality evaluation device on the other hand, comprising:
First acquisition module, be used to obtain sub-district to be measured in the sub-district when not busy all user terminals and base station carry out the power parameter of Signalling exchange, wherein, said sub-district is the minimum time period of telephone traffic in the said sub-district to be measured a day during spare time;
Processing module is used for confirming according to said power parameter and the preset test and appraisal thresholding corresponding with said power parameter the indoor wireless networks covering quality of said sub-district to be measured.
Another aspect of the invention provides a kind of indoor wireless networks quality evaluation system, comprises above-mentioned indoor wireless networks quality evaluation device and user terminal and base station.
The indoor wireless networks quality evaluation methods, devices and systems that the embodiment of the invention provides; The power parameter of Signalling exchange carries out all user terminals and base station when not busy in the sub-district through obtaining sub-district to be measured; And confirm the indoor wireless networks covering quality of sub-district to be measured according to power parameter that obtains and the preset test and appraisal thresholding corresponding with power parameter; Thereby improved the comprehensive and accuracy that the internal home network covering quality of user's inhabitation is tested and assessed; Avoid artificial defective of carrying out the DT/CQT test, reduced cost.
Description of drawings
Fig. 1 is the flow chart of an embodiment of indoor wireless networks quality evaluation method of the present invention;
Fig. 2 is the flow chart of another embodiment of indoor wireless networks quality evaluation method of the present invention;
Fig. 3 is the structural representation of an embodiment of indoor wireless networks quality evaluation device of the present invention;
Fig. 4 is the structural representation of another embodiment of indoor wireless networks quality evaluation device of the present invention;
Fig. 5 is the structural representation of an indoor wireless networks quality evaluation embodiment of system of the present invention.
Embodiment
Fig. 1 is the flow chart of an embodiment of indoor wireless networks quality evaluation method of the present invention, and as shown in Figure 1, this method comprises:
Indoor wireless networks quality evaluation device independent part as required is deployed in network equipment such as base station or the network management system, perhaps concentrates with network equipment and disposes.Indoor wireless networks quality evaluation device obtains sub-district to be measured, and the power parameter of Signalling exchange carries out all user terminals and base station when not busy in the sub-district.Need to prove that because the concrete radio-resource-configuration of each sub-district is different with the network load situation in the whole network, so the sub-district of each sub-district is also inequality during the spare time.The sub-district is meant one day time period the most idle of wireless network that the sub-district covers when not busy; Be the minimum time period of the one day internal traffic in sub-district such as 4:00-5:00, the sub-district means when not busy that most of user in indoor rest, (it should be noted that; The outer user's present embodiment of few part special chamber is ignored); Therefore, user terminal also is in indoor, and the communication interaction that user terminal is carried out during the spare time also occurs in indoor in the sub-district.
Need to prove that indoor wireless networks quality evaluation device obtains the power parameter that user terminal and base station carries out Signalling exchange and can represent to the wireless signal received power that the signaling transmitting power and/or the user terminal of base station report network side signaling message receives the base station wireless signal through obtaining user terminal in the present embodiment.With the signaling transmitting power of obtaining user terminal is example explanation as follows: indoor wireless networks quality evaluation device is in the sub-district of sub-district to be measured during the spare time; Through obtaining received power and the path loss that the base station receives each user terminal to send up network side signaling message, and confirm the signaling transmitting power of each user terminal according to the difference of received power and path loss.
Indoor wireless networks quality evaluation device is after obtaining sub-district to be measured the power parameter of Signalling exchange is carried out in all user terminals and base station when not busy in the sub-district; Confirm the test and appraisal thresholding corresponding of setting in advance according to the particular content of power parameter, thereby power parameter that obtains and the power parameter test and appraisal thresholding that is provided with are in advance analyzed the indoor wireless networks covering quality of confirming sub-district to be measured with power parameter.Because the particular content of power parameter is different; Therefore; Power parameter test and appraisal thresholding is looked the particular content of power parameter and is decided; Still with the signaling transmitting power of the user terminal that obtains in the step 100 be the example explanation as follows: the test and appraisal thresholding of presetting corresponding with power parameter comprises: the threshold value of the signaling transmitting power of user terminal is A; If the ratio of quantity that accounts for all user terminals less than the quantity of the user terminal of A shows then that less than preset weak covering quality threshold value B the indoor wireless networks covering quality of this sub-district to be measured is relatively poor, need be optimized; If the ratio of quantity that accounts for all user terminals less than the quantity of the user terminal of A shows then that more than or equal to preset B the indoor wireless networks covering quality of this sub-district to be measured is better.
The indoor wireless networks quality evaluation method that present embodiment provides; The power parameter of Signalling exchange carries out all user terminals and base station when not busy in the sub-district through obtaining sub-district to be measured; And confirm the indoor wireless networks covering quality of sub-district to be measured according to power parameter that obtains and the preset test and appraisal thresholding corresponding with power parameter; Thereby improved the comprehensive and accuracy that the internal home network covering quality of user's inhabitation is tested and assessed, avoided artificial defective of carrying out the DT/CQT test, reduced cost.
Fig. 2 is the flow chart of another embodiment of indoor wireless networks quality evaluation method of the present invention, and as shown in Figure 2, this method comprises:
Indoor wireless networks quality evaluation device obtains sub-district to be measured average user terminal quantity and the sub-district user terminal quantity the during spare time of every day; The ratio and the preset threshold value of sub-district to be measured user terminal quantity when not busy and average user terminal quantity of sub-district to be measured every day in the sub-district compare; Judge that whether this ratio is more than or equal to preset threshold value; If judge and know that this ratio is more than or equal to preset threshold value; Explain that then most of user terminal is in open state and has the ability of carrying out Signalling exchange with the base station; This moment test effectively can obtain sub-district to be measured in the sub-district when not busy all user terminals test and assess with indoor wireless networks covering quality with the power parameter that Signalling exchange is carried out in the base station to sub-district to be measured, otherwise sub-district to be measured is not carried out the test and appraisal of indoor wireless networks quality, with the validity that guarantees to test and assess.
Whether step 201, the timer duration of confirming to be used for monitor user ' terminal to report network side signaling message smaller or equal to the sub-district when not busy, if, execution in step 203, otherwise, execution in step 202;
Network side is provided with timer; The network side signaling message that is used for the monitor user ' terminal to report; The different communication standard timer duration of monitoring various network side signaling message down is not quite similar; When arriving the preset time of timer, if network side does not also receive the network side signaling message of user terminal to send up, network side will issue control command to user terminal and whether be in the normal cluster state with the judges terminal.Therefore; Carry out the reliability of indoor wireless networks quality evaluation when not busy in the sub-district in order to ensure sub-district to be measured, the duration when not busy compares with the timer duration that is used for monitor user ' terminal to report network side signaling message indoor wireless networks quality evaluation device with the sub-district, confirms that timer duration is whether smaller or equal to the sub-district when not busy; If; Execution in step 203, otherwise, execution in step 202.
Indoor wireless networks quality evaluation device reduces the adjustment instruction to the network side transmission timer; Thereby network side reduces timer duration; Satisfy timer duration and whether during the spare time, carry out the reliability of indoor wireless networks quality evaluation during the spare time in the sub-district to guarantee sub-district to be measured smaller or equal to the sub-district.It should be noted that; Preferably; Indoor wireless networks quality evaluation device can also be adjusted timer duration, so that the sub-district of sub-district to be measured is the integral multiple of timer duration when not busy is balanced with the quantity of the network side signaling message that guarantees each user terminal and reported, test result is more accurate.
Indoor wireless networks quality evaluation device can read the network side signaling message of sub-district to be measured at sub-district all user terminal to send up during the spare time from network management system; Perhaps; Indoor wireless networks quality evaluation device can be from being responsible for core net and radio network controller (Radio Network Controller in the 3G communication system; RNC) the Iu interface of Signalling exchange between; And from the Iub interface of being responsible for Signalling exchange between RNC and the NODE-B obtain sub-district to be measured in the sub-district network side signaling message of all user terminal to send up when not busy; Perhaps, indoor wireless networks quality evaluation device obtains the network side signaling message of sub-district to be measured at sub-district all user terminal to send up during the spare time from the Abis interface of being responsible for Signalling exchange between base station controller BSC and the base transceiver station BTS in the 2G communication system.Need to prove; Different communication standards obtains various network side signaling message according to practical application request; With WCDMA (Wideband Code Division Multiple Access; WCDMA) communication system is that example describes: according to 3GPP TS25.331, at present WCDMA network side signaling message can be RRC connection request message RRC CONNECTION REQUEST, initial directly message transfer INITIAL DIRECT TRANSFER, measurement report message MEASUREMENT REPORT, cell update message CELLUPDATE or up direct message transfer UPLINK DIRECT TRANSFER.
Indoor wireless networks quality evaluation device to sub-district to be measured in the sub-district when not busy the network side signaling message of all user terminal to send up resolve and obtain the wireless signal received power; Need to prove; The wireless signal received power comprises: received signal level (Received Signal Level; RxLev) and/or signal receiving quality (Signal Received Quality; RxQual), wherein, received signal level RxLev has reflected that user terminal receives the wireless signal strength of base station (level); Signal receiving quality RxQual has reflected that user terminal receives the radio signal power of base station and the ratio of noise power.
Indoor wireless networks quality evaluation device is obtaining sub-district to be measured after the wireless signal received power of sub-district all user terminals during the spare time; Confirm the corresponding wireless signal received power that is provided with in advance test and appraisal thresholding according to the wireless signal received power of obtaining, thereby the wireless signal received power of the user terminal that obtains and the wireless signal received power test and appraisal thresholding that is provided with are in advance analyzed the indoor wireless networks covering quality of definite sub-district to be measured.Because wireless signal received power particular content is different, therefore, corresponding wireless signal received power test and appraisal thresholding is also different, is exemplified below: when the wireless signal received power is RxLev, and γ
ThresholdRxLevBe RxLev threshold value, η
ThresholdProbabilityBe weak covering quality threshold value, know that it is RxLev≤γ that sub-district to be measured reports RxLev in the sub-district during spare time if judge
ThresholdRxLevQuantity account for all RxLev that report the ratio of quantity more than or equal to η
ThresholdProbability, then the indoor wireless networks covering quality of sub-district to be measured is relatively poor, need in time be optimized; When the wireless signal received power is RxQual, γ
ThresholdRxQualBe RxQual threshold value, η
ThresholdProbabilityBe weak covering quality threshold value, know that it is RxQual≤γ that sub-district to be measured reports RxQual in the sub-district during spare time if judge
ThresholdRQualQuantity account for all RxQual that report the ratio of quantity more than or equal to η
ThresholdProbability, then the indoor wireless networks covering quality of sub-district to be measured is relatively poor, need in time be optimized.
The indoor wireless networks quality evaluation method that present embodiment provides; In the sub-district of confirming sub-district to be measured when not busy and under the prerequisite of user terminal validity; The power parameter of Signalling exchange carries out all user terminals and base station when not busy in the sub-district through obtaining sub-district to be measured; And confirm the indoor wireless networks covering quality of sub-district to be measured according to power parameter that obtains and the preset test and appraisal thresholding corresponding with power parameter, thus the comprehensive and accuracy that internal home network covering quality that the user is lived is tested and assessed improved, and further guaranteed the reliability of testing and assessing; Avoid artificial defective of carrying out the DT/CQT test simultaneously, reduced cost.
In order more clearly to describe the indoor wireless networks quality evaluation method that the foregoing description provides, present embodiment is tested and assessed to example is elaborated through the indoor wireless networks quality to sub-district in the gsm communication system, specifically comprises:
Step (1); The sub-district that indoor wireless networks quality evaluation device statistics obtains sub-district to be measured is 4:00 ~ 5:00 in morning during the spare time; And obtain average start user terminal N hourly in the sub-district to be measured a day (suggestion N >=300) and the sub-district start user terminal M of (a hour) during the spare time; Judge the Homes Using TV η=M/N the when sub-district is not busy; (suggestion η >=50%) if judge the Homes Using TV of knowing when the sub-district is not busy greater than 50%, then obtained the sub-district to be measured power parameter that Signalling exchange is carried out in all user terminals and base station when not busy in the sub-district and tested and assessed with the indoor wireless networks covering quality to sub-district to be measured.
Step (2); Indoor wireless networks quality evaluation device judge know the T3212 timer duration that is used for monitor user ' terminal to report measurement report message MEASUREMENT REPORT among the GSM be 1 hour with sub-district spare time appearance etc. constantly, then obtain the measurement report message MEASUREMENT REPORT of user terminal to send up.
Step (3); Indoor wireless networks quality evaluation device obtains the measurement report message MEASUREMENT REPORT of sub-district to be measured at sub-district all user terminal to send up during the spare time from Abis interface, and extracts the wireless signal received power RxLev among the measurement report message MEASUREMENT REPORT.
Step (4), indoor wireless networks quality evaluation device obtains the test and appraisal thresholding corresponding with RxLev, RxLev threshold value γ
ThresholdRxLevFor-90dBm, weak covering quality threshold value η
ThresholdProbabilityBe 10%; Know that sub-district to be measured reports RxLev when not busy in the sub-district be that the ratio of the quantity of RxLev≤-90 quantity that accounts for all RxLev that report is more than or equal to 10% if judge; Then the indoor wireless networks covering quality of sub-district to be measured is relatively poor, need in time be optimized, if less than 10%; Then the indoor wireless networks covering quality of sub-district to be measured is better, need not be optimized.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Fig. 3 is the structural representation of an embodiment of indoor wireless networks quality evaluation device of the present invention; As shown in Figure 3; This device comprises: first acquisition module 11 and processing module 12; Wherein, first acquisition module 11 is used to obtain sub-district to be measured the power parameter of Signalling exchange carries out all user terminals and base station when not busy in the sub-district; Processing module 12 is used for confirming according to power parameter and the preset test and appraisal thresholding corresponding with power parameter the indoor wireless networks covering quality of sub-district to be measured.
The function and the handling process of each module in the indoor wireless networks quality evaluation device that present embodiment provides can be referring to above-mentioned method embodiment shown in Figure 1, and its realization principle and technique effect are similar, repeat no more here.
Fig. 4 is the structural representation of another embodiment of indoor wireless networks quality evaluation device of the present invention; As shown in Figure 4; Based on embodiment illustrated in fig. 3; First acquisition module 11 comprises: collecting unit 111 and resolution unit 112, and wherein, collecting unit 111 is used for obtaining the network side signaling message of sub-district to be measured at sub-district all user terminal to send up during the spare time from network management system or Iub/Iu/Abis interface; Resolution unit 112 is used to the wireless signal received power of resolving the network side signaling message and obtaining all user terminals.Need to prove that the network side signaling message is: RRC connection request message, initial directly message transfer, cell update message, measurement report message or up direct message transfer.The wireless signal received power comprises: received signal level and/or signal receiving quality.
Further; First acquisition module 11 also comprises: adjustment unit 113; Whether the timer duration that is used to confirm to be used for monitor user ' terminal to report network side signaling message is smaller or equal to the sub-district when not busy, if then obtain the network side signaling message; Otherwise, reduce said timer duration with smaller or equal to the sub-district when not busy.
Further, said device also comprises: second acquisition module 13 and startup module 14, and wherein, second acquisition module 13 is used to obtain sub-district to be measured average user terminal quantity and the sub-district user terminal quantity the during spare time of every day; Whether the ratio that startup module 14 is used for confirming user terminal quantity and average user terminal quantity is more than or equal to preset threshold value, if then obtain power parameter and test and assess with the indoor wireless networks covering quality to sub-district to be measured.
The function and the handling process of each module in the indoor wireless networks quality evaluation device that present embodiment provides can be referring to above-mentioned method embodiment shown in Figure 2, and its realization principle and technique effect are similar, repeat no more here.
Fig. 5 is the structural representation of an indoor wireless networks quality evaluation embodiment of system of the present invention; As shown in Figure 5; This system comprises: indoor wireless networks quality evaluation device 1 and user terminal 2 and base station 3; Need to prove, shown in Figure 5ly be deployed in the base station 3, also can indoor wireless networks quality evaluation device 1 be deployed in all the other equipment of network side like the network management system (not shown) according to the practical application needs for indoor wireless networks quality evaluation device 1.Wherein, the indoor wireless networks quality evaluation device that indoor wireless networks quality evaluation device 1 can adopt the embodiment of the invention to provide, user terminal 2 is related user terminal of the above embodiment of the present invention and base station with base station 3.
The function and the handling process of each module in the indoor wireless networks quality evaluation system that present embodiment provides can be referring to the method embodiment shown in above-mentioned, and it realizes that principle and technique effect are similar, repeats no more here.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
1. an indoor wireless networks quality evaluation method is characterized in that, comprising:
Obtain sub-district to be measured in the sub-district when not busy all user terminals and base station carry out the power parameter of Signalling exchange, wherein, said sub-district is the minimum time period of telephone traffic in the said sub-district to be measured a day during spare time;
Confirm the indoor wireless networks covering quality of said sub-district to be measured according to said power parameter and the preset test and appraisal thresholding corresponding with said power parameter.
2. indoor wireless networks quality evaluation method according to claim 1 is characterized in that, the said sub-district to be measured power parameter that Signalling exchange is carried out in all user terminals and base station when not busy in the sub-district that obtains comprises:
Obtain the network side signaling message of sub-district to be measured from network management system or Iub/Iu/Abis interface at sub-district all user terminal to send up during the spare time;
Resolve said network side signaling message and obtain the wireless signal received power of all user terminals.
3. indoor wireless networks quality evaluation method according to claim 2 is characterized in that,
Said network side signaling message is: measurement report message, RRC connection request message, initial directly message transfer, cell update message or up direct message transfer;
Said wireless signal received power comprises: received signal level and/or signal receiving quality.
4. indoor wireless networks quality evaluation method according to claim 2; It is characterized in that; Obtained sub-district to be measured said before the network side signaling message of sub-district all user terminal to send up during the spare time from network management system or Iub/Iu/Abis interface, said method also comprises:
Whether the timer duration of confirming to be used for monitor user ' terminal to report network side signaling message smaller or equal to said sub-district when not busy, if, then obtain said network side signaling message, otherwise, said timer duration reduced with smaller or equal to said sub-district when not busy.
5. according to each described indoor wireless networks quality evaluation method of claim 1-4, it is characterized in that, said obtain sub-district to be measured the power parameter of Signalling exchange carried out in all user terminals and base station when not busy in the sub-district before, said method also comprises:
Obtain sub-district to be measured average user terminal quantity and the sub-district user terminal quantity the during spare time of every day;
Whether the ratio of confirming said user terminal quantity and said average user terminal quantity is more than or equal to preset threshold value, if then the indoor wireless networks covering quality of said sub-district to be measured is tested and assessed.
6. an indoor wireless networks quality evaluation device is characterized in that, comprising:
First acquisition module, be used to obtain sub-district to be measured in the sub-district when not busy all user terminals and base station carry out the power parameter of Signalling exchange, wherein, said sub-district is the minimum time period of telephone traffic in the said sub-district to be measured a day during spare time;
Processing module is used for confirming according to said power parameter and the preset test and appraisal thresholding corresponding with said power parameter the indoor wireless networks covering quality of said sub-district to be measured.
7. indoor wireless networks quality evaluation device according to claim 6 is characterized in that, said first acquisition module comprises:
Collecting unit is used for obtaining the network side signaling message of sub-district to be measured at sub-district all user terminal to send up during the spare time from network management system or Iub/Iu/Abis interface;
Resolution unit, the wireless signal received power that is used to resolve said network side signaling message and obtains all user terminals.
8. indoor wireless networks quality evaluation device according to claim 7 is characterized in that, said first acquisition module also comprises:
Adjustment unit; Whether the timer duration that is used to confirm to be used for monitor user ' terminal to report network side signaling message is smaller or equal to said sub-district when not busy, if then obtain said network side signaling message; Otherwise, reduce said timer duration with smaller or equal to said sub-district when not busy.
9. according to each described indoor wireless networks quality evaluation device of claim 6-8, it is characterized in that said device also comprises:
Second acquisition module is used to obtain sub-district to be measured average user terminal quantity and the sub-district user terminal quantity the during spare time of every day;
Start module, whether the ratio that is used for confirming said user terminal quantity and said average user terminal quantity is more than or equal to preset threshold value, if then the indoor wireless networks covering quality of said sub-district to be measured is tested and assessed.
10. an indoor wireless networks quality evaluation system is characterized in that, comprises each described indoor wireless networks quality evaluation device and user terminal and base station like claim 6-9.
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| CN104349335B (en) * | 2013-08-09 | 2017-11-21 | 中国移动通信集团安徽有限公司 | A kind of network coverage planning index analysis method and system |
| CN104796277A (en) * | 2014-01-21 | 2015-07-22 | 中国移动通信集团湖南有限公司 | Network fault monitoring method and device |
| CN104796277B (en) * | 2014-01-21 | 2018-12-07 | 中国移动通信集团湖南有限公司 | A kind of Network Fault Detecting method and device |
| CN106937296A (en) * | 2015-12-30 | 2017-07-07 | 中国移动通信集团北京有限公司 | A kind of method and device for disposing cellular basestation |
| CN106937296B (en) * | 2015-12-30 | 2019-11-26 | 中国移动通信集团北京有限公司 | A kind of method and device for disposing cellular base station |
| CN107466065A (en) * | 2017-09-06 | 2017-12-12 | 中国移动通信集团江苏有限公司 | Determination method, apparatus, equipment and the medium of network quality |
| CN107466065B (en) * | 2017-09-06 | 2019-12-06 | 中国移动通信集团江苏有限公司 | Method, device, equipment and medium for determining network quality |
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