CN103916886A - Virtual test method and system, simulating base station and test terminal - Google Patents
Virtual test method and system, simulating base station and test terminal Download PDFInfo
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Abstract
The embodiment of the invention relates to the technical field of communication and discloses a virtual test method and system, a simulating base station and a test terminal. The method includes: the simulating base station formed by a first mobile terminal establishes a synchronization relation with a synchronization reference datum at a preset point position; the simulating base station sending public synchronization signals in an omnidirectional method according to the synchronization reference datum; the test terminal formed by a second mobile terminal receives the public synchronization signals at preset monitoring point positions so that signal intensity information of the simulating base station is obtained; and according to the signal intensity information acquired by the test terminal from each monitoring point position, whether the preset point position is a valid station address is judged. Both of the needed simulating base station and the test terminal can be obtained through limited software update on the basis of the prior conventional terminals so that compared with the prior art, the device cost of a virtual test is reduced significantly and convenience of the virtual test is improved.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of virtual measuring method, system, anolog base station and test terminal.
Background technology
The means such as in the network planning of mobile communication system and network optimization link, that indoor distributed system, station, street are mended is blind, relay system are effectively supplemented as the quality of arranging net, have obtained the extensive application of operator.
In prior art, in the engineering exploration of the most important ring of above-mentioned work (needing the siting of station as indoor distributed system need to carry out the design of antenna point position, blind/relay system is mended at station, street), comprise the work of " virtual test ", particularly, the following virtual measuring method of general employing in prior art:
First, place signal source or other signal generating apparatus in the position of preliminary definite some position or site, and use omnidirectional antenna to send predetermined continuous signal (as single-frequency rectangular pulse signal);
Secondly, use the control point position of sweep generator in expection overlay area, predetermined continuous signal is scanned and picked up signal intensity distributions;
Finally, according to the signal intensity profile information of the different monitoring point position of collecting, confirm the validity of some position or the siting of station; If the coverage effect that some position or the siting of station obtain does not meet design specification, repeat above step until effectively.
As seen from the above description, at least there is following shortcoming in virtual measuring method in the prior art:
1, need at least one signal source equipment and several frequency spectrograph equipment, cost is high; 2,, because signal source and frequency spectrograph equipment are all comparatively heavy, in concrete some position or when siting of station operation, also there is significant inconvenience, thereby make operating efficiency not good.
Summary of the invention
Embodiment of the present invention technical problem to be solved is to provide a kind of virtual measuring method, system, anolog base station and test terminal, for reducing the cost of virtual test equipment needed thereby, promotes the convenience of virtual test.
The embodiment of the present invention provides a kind of virtual measuring method, comprising:
The anolog base station being made up of the first mobile terminal is set up synchronized relation in predetermined point position and reference synchronization benchmark;
The described reference synchronization benchmark of described anolog base station foundation omnidirectional sends common synchronization signal;
The test terminal being made up of the second mobile terminal receives described common synchronization signal in predetermined position, control point, obtains the signal strength information of described anolog base station;
The signal strength information in each position, control point of collecting according to described test terminal, judges whether described predetermined point position is effective site.
Accordingly, the embodiment of the present invention also provides a kind of virtual test system to comprise:
The anolog base station being made up of the first mobile terminal, is arranged on predetermined point position, and for setting up synchronized relation with reference synchronization benchmark, and the described reference synchronization benchmark of foundation omnidirectional sends common synchronization signal;
The test terminal being made up of the second mobile terminal, receives described common synchronization signal for the position, control point predetermined, obtains the signal strength information of described anolog base station;
Analytical equipment, for the signal strength information in each position, control point of collecting according to described test terminal, judges that whether the selection of described predetermined point position is effective.
Accordingly, the embodiment of the present invention also provides a kind of anolog base station, and described anolog base station is made up of mobile terminal, and described anolog base station comprises:
Lock unit, for setting up synchronized relation in predetermined point position and reference synchronization benchmark;
Transmitting element, for the described reference synchronization benchmark of foundation, omnidirectional sends common synchronization signal.
Accordingly, the embodiment of the present invention also provides a kind of test terminal, and described test terminal is made up of mobile terminal, and described test terminal comprises:
Resident element, resident for the enforcement community, position, control point default;
Receiving element, the common synchronization signal sending for receiving anolog base station;
Acquiring unit, for according to described common synchronization signal, implements the signal strength measurement to described anolog base station, to obtain the signal strength information of described anolog base station.
In the embodiment of the present invention, can anolog base station be set by the some position predetermined and send common synchronization signal, in predetermined position, control point, the signal strength information of anolog base station is carried out the measurement of signal strength signal intensity for test terminal, the signal strength information that can collect according to test terminal judges the validity of predetermined point position, thereby realize virtual test, because being existing conventional terminal, anolog base station required for the present invention and its basic transmission-receiving function of test terminal possess, therefore the anolog base station in virtual measuring method of the present invention and system and test terminal all can be carried out limited software upgrading and obtain based on existing conventional terminal, thereby the virtual measuring method compared to existing technology, do not need signal source and frequency spectrograph equipment that cost is high and heavy, both saved a large amount of equipment costs, can improve again convenience and the operating efficiency of virtual test.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet of a kind of virtual measuring method of providing of the embodiment of the present invention one;
Fig. 2 is structure first schematic diagram of a kind of virtual test system of providing of the embodiment of the present invention two;
Fig. 3 is structure second schematic diagram of a kind of virtual test system of providing of the embodiment of the present invention two.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A kind of virtual measuring method and system are provided in the embodiment of the present invention, for reducing the equipment cost of virtual test, and convenience and the efficiency of raising virtual test.Below be elaborated respectively.
Embodiment mono-:
The invention provides a kind of virtual measuring method, with reference to figure 1, the method comprises:
101, the anolog base station being made up of the first mobile terminal is set up synchronized relation in predetermined point position and reference synchronization benchmark;
102, the above-mentioned reference synchronization benchmark of above-mentioned anolog base station foundation omnidirectional sends common synchronization signal;
103, the test terminal being made up of the second mobile terminal receives above-mentioned common synchronization signal in predetermined position, control point, obtains the signal strength information of above-mentioned anolog base station;
104, the signal strength information in each position, control point of collecting according to above-mentioned test terminal, judges whether above-mentioned predetermined point position is effective site.
For instance, in the present embodiment, anolog base station is made up of the first mobile terminal, test terminal is made up of the second mobile terminal, and the first mobile terminal and the second mobile terminal can be specifically the equipment that mobile phone, mobile phone, panel computer, radio network gateway, fixed CDMA WLL or other have mobile communication function.
Preferably, above-mentioned reference synchronization benchmark is existing network base station synchronization signal, due to the occurrence scene of virtual test, normally indoor distributed system or dense city blind spot cover and supplement, the present predetermined point of anolog base station position normally can ensure to have that existing network covers, obtain with existing network base station between to synchronize be feasible.
Optionally, above-mentioned reference synchronization benchmark can be satellite positioning signal, the satellite positioning signal sending as global positioning system (be called for short GPS) or Big Dipper navigation system or Galileo navigation system, anolog base station can be built-in and the corresponding receiving chip of corresponding global position system realize the reception of satellite positioning signal, for example select gps system, anolog base station can built-in gps signal receiving chip.
The common synchronization signal that above-mentioned anolog base station omnidirectional sends at least comprises beacon channel signal and the broadcast channel signal of the resident required synchronizing signal in community, signal strength signal intensity necessary for monitoring.
Optionally, above-mentioned broadcast channel signal be simplify, information is limited, only for reference synchronization, terminal cannot be normally resident.
Preferably, above-mentioned broadcast channel signal is complete, and carries and be used to indicate the mark of this broadcast channel signal from anolog base station, makes terminal can be normally resident and can to recognize current resident community be anolog base station.
For instance, above-mentioned this broadcast channel signal that is used to indicate can be realized by mode below from the mark of anolog base station: in broadcast channel signal, by IMSI International Mobile Subscriber Identity (International Mobile SubscriberIdentity, be called for short IMSI) in Mobile Country Code MCC (Mobile Country Code, be called for short MCC) be set to the national code of non-test zone, thus inform that current persistent district, test terminal is for providing the anolog base station of special applications.The scene of for example virtual test application be Chinese (MCC=460), and the MCC code that anolog base station is carried is set to the 432(that can not occur at regional and refers to Iran), taking notify test terminal its as anolog base station.
Taking 3rd Generation Partnership Project (being called for short 3GPP) Long Term Evolution (being called for short LTE) system as example, the resident required synchronizing signal in community comprises that master sync signal (is called for short PSS, Primary Synchronization Signal), auxiliary synchronous signals (be called for short SSS, Secondary Synchronization Signal); The beacon channel signal of signal strength signal intensity necessary for monitoring is the reference signal (being called for short RS, reference signal) of predetermined work bandwidth; Broadcast channel signal comprises that Physical Broadcast Channel (is called for short PBCH, Physical Broadcast Channel) and bearing system block of information (abbreviation SIB, System Information Block) Physical Downlink Shared Channel (be called for short PDSCH, Physical downlink shared channel).
(be called for short TDD with 3GPP time division duplex, time-division duplex) system is example, the resident required synchronizing signal in community comprises descending pilot frequency time slot (being called for short DwPTS, Downlink Pilot Time Slot), the main time slot 0 training sequence intermediate code (being called for short midamble) of carrying; The beacon channel signal of channel strength necessary for monitoring and broadcast channel signal are the main Primary Common Control Physical Channel (being called for short PCCPCH, Primary Common Control Physical Channel) that carries time slot 0.
The anolog base station being made up of the first mobile terminal is during taking existing network base station synchronization signal as reference synchronization benchmark, anolog base station can adopt multiple-working mode, as TDD mode, semiduplex mode, special synchronous pattern etc., below respectively above-mentioned three kinds of mode of operations are carried out to brief description, certainly, art technology also can be selected other suitable mode of operation, does not do concrete restriction at this.
TDD mode: under this pattern, the transmission of common synchronization signal and scheduled duration and not overlapping mutually that the reception of existing network base station synchronization signal is staggered; The above-mentioned scheduled duration staggering can be multiple system burst chronomere, and taking 3GPP LTE system as example, above-mentioned scheduled duration can be multiple subframe lengths; Taking 3GPP TDD system as example, above-mentioned scheduled duration can be multiple slot lengths (containing special time slot).
Preferably, under TDD mode, the transmission of common synchronization signal and to the reception of existing network base station synchronization signal all in system descending burst region.
Semiduplex mode: under this pattern, the transmission of common synchronization signal with the reception of existing network base station synchronization signal is shared to same time point, but cross occurrence;
In semiduplex mode, need the scheduled time to carry out once to the reception of existing network base station synchronization signal, object is the synchronized relation that maintains anolog base station and existing network base station; When this above-mentioned reception to existing network base station synchronization signal enables, common synchronization signal sends and stops, until the maintenance of the synchronized relation of anolog base station and existing network base station completes; The maintaining method of above-mentioned synchronized relation is general Timing Synchronization/Frequency Synchronization keeping method, is prior art, does not repeat them here;
Special synchronous pattern: under this pattern, anolog base station is connected by the predetermined dedicated service continuing with existing network base station model, realize the synchronization of dedicated channel, the delivery time of common synchronization signal is the downlink synchronous signal delivery time of synchronous base instruction, in special synchronous pattern, no longer there is the reception to existing network base station synchronization signal;
The synchronization keeping method of above-mentioned dedicated channel is general Timing Synchronization/Frequency Synchronization keeping method, is prior art, does not repeat them here.
Further, above-mentioned steps 103 can comprise:
Community is carried out in 103A, test terminal in default control point resident, resides in specifically anolog base station or existing network base station.
103B, test terminal receive in default control point the common synchronization signal that anolog base station sends, and implement the signal strength measurement to anolog base station, to obtain the signal strength information of anolog base station.
Alternatively, in the time that test terminal resides in existing network base station, test terminal is in measuring its current persistent district and monitoring collection community thereof and monitoring, receive the common synchronization signal that anolog base station sends, and according to the anolog base station mode of operation knowing in advance, anolog base station is carried out to signal strength measurement.
Alternatively, in the time that test terminal resides in anolog base station, test terminal receives the common synchronization signal that anolog base station sends, and according to the anolog base station mode of operation knowing in advance, anolog base station is carried out to signal strength measurement.
It should be noted that, in the present embodiment, the above-mentioned method that knows in advance anolog base station mode of operation is: arrange in advance the working frequency points mark of anolog base station and cell identity information with its mode of operation of unique instruction, particularly, can adopt mode as shown in the table to set:
| Anolog base station mode of operation | Working frequency points mark | Cell ID |
| Time division duplex | f0 | 5 |
| Half-duplex | f1 | 20 |
| Special synchronous | f2 | 90 |
Alternatively, in the time that anolog base station works in semiduplex mode, anolog base station is implemented to signal strength measurement and betide in anolog base station common synchronization signal sending time.
Preferably, the common synchronization signal sending time pattern of above-mentioned anolog base station is notified in the broadcast of anolog base station.
Alternatively, cycle, starting point and the side-play amount of the common synchronization signal sending time of anolog base station retrain in advance, only issue frame number information and derive for test terminal in broadcast.
Alternatively, if common synchronization signal sending time test terminal the unknown of above-mentioned anolog base station, test terminal is abandoned means by invalid/abnormal measurement of predetermined quantity and is resisted within the unit interval.
In the time that anolog base station works in special synchronous pattern, the same known technology of the signal strength measurement of test terminal, is not repeating at this.
In the present embodiment, anolog base station and test terminal form by conventional mobile terminal (the first mobile terminal, the second mobile terminal), but also need certain Software adapting, below describe:
Under TDD mode, the reforming content of realizing anolog base station based on the first mobile terminal comprises: make anolog base station in continuing the acceptance of existing network base station synchronization signal, can send in precalculated position common synchronization signal; The transformation that the second mobile terminal is realized to test terminal comprises: make test terminal monitor the common synchronization signal from existing network base station and anolog base station at diverse location.Also little to the retrofit work amount of the first mobile terminal and the second mobile terminal under TDD mode.
Under TDD mode, the first mobile terminal that forms anolog base station comprises following behavior:
Implement described common synchronization signal according to prior art at existing network base station common synchronization signal location and receive, use general Timing Synchronization/Frequency Synchronization keeping method maintain synchronization relation.
Default duration based on staggering determines that the common synchronization signal of anolog base station sends position, and the common synchronization signal of implementing anolog base station according to prior art in described position sends.Described step further comprises:
1, in advance the sub-frame data that carries anolog base station common synchronization signal is pre-stored in the internal memory of the first mobile terminal;
2,, in the moment to be sent, utilize existing mobile terminal transmission technology to send the common synchronization information of anolog base station described subframe.
Under TDD mode, the second mobile terminal that forms test terminal comprises following behavior:
In the time that test terminal resides in existing network base station, implement existing network base station common synchronization signal according to prior art at existing network base station common synchronization signal location and receive, use general Timing Synchronization/Frequency Synchronization keeping method maintain synchronization relation.
Default duration based on staggering determines that the common synchronization signal of anolog base station sends position, implements anolog base station common synchronization signal and receives, and utilize existing measuring technique to complete measurement according to prior art at existing network base station common synchronization signal location.
In the time that test terminal resides in anolog base station, implementing described common synchronization signal according to prior art at anolog base station common synchronization signal location receives, use general Timing Synchronization/Frequency Synchronization keeping method maintain synchronization relation, and utilize existing measuring technique to complete measurement.
Under semiduplex mode, the reforming content of realizing anolog base station based on the first mobile terminal comprises: make anolog base station can accept existing network base station synchronization signal, and timesharing sends common synchronization signal; The reforming content of realizing test terminal based on the second mobile terminal comprises: make test terminal monitor the common synchronization signal from existing network base station and anolog base station in same position timesharing; TDD mode relatively, semiduplex mode is larger to the retrofit work of the first mobile terminal and the second mobile terminal.
Under semiduplex mode, the first mobile terminal that forms anolog base station comprises following behavior:
Every predetermined period T1 continues scheduled time T2, implements described common synchronization signal receive according to prior art at existing network base station common synchronization signal location, uses general Timing Synchronization/Frequency Synchronization keeping method maintain synchronization relation.
Described predetermined period T1 span 500～1280ms; Described scheduled time T2 span 40～120ms;
Other operating time, utilize existing mobile terminal transmission technology at existing network base station common synchronization signal location, the common synchronization information of anolog base station to be sent, the same TDD mode of sending method.
Under semiduplex mode, the second mobile terminal that forms test terminal comprises following behavior:
In the time that test terminal resides in existing network base station, every predetermined period T1 ' continues scheduled time T2 ', implement described common synchronization signal according to prior art at existing network base station common synchronization signal location and receive, use general Timing Synchronization/Frequency Synchronization keeping method maintain synchronization relation.
Described predetermined period T1 ' span 500～1280ms; Described scheduled time T2 ' span 40～120ms;
Other operating time, implement anolog base station common synchronization signal according to prior art at existing network base station common synchronization signal location and receive, and utilize existing measuring technique to complete measurement.
Does is the anolog base station synchronizing signal signal quality that judges described reception greater than default thresholding Th1? to be considered as effectively continuing to carry out; No, invalid, abandon this common synchronization signal;
Described signal quality comprises signal to noise ratio, Signal to Interference plus Noise Ratio, and obtain manner is known technology; Default thresholding is empirical value, span-6 ~ 10dB;
Do you optionally, judge that the average signal quality difference in described common synchronization signal quality and Preset Time is less than default thresholding Th2? to be considered as effectively continuing to carry out; No, invalid, abandon this common synchronization signal;
Described Preset Time span 20～100ms; Default thresholding span 0 ~ 5dB;
In the time that test terminal resides in anolog base station, the same TDD mode of its behavior.
Under special synchronous pattern, the reforming content of realizing anolog base station based on the first mobile terminal comprises: anolog base station is connected by the predetermined dedicated service continuing with existing network base station model, realize the synchronization of dedicated channel, and the delivery time of common synchronization signal is the downlink synchronous signal delivery time of synchronous base instruction; Do not need test terminal to transform, because for test terminal, the common synchronization signal location that anolog base station sends is consistent with existing network base station location, is only the difference of cell ID and working frequency points, without any transformation action.Visible, with respect to first two mode of operation, special synchronous pattern can realize zero transformation of test terminal under the prerequisite of suitable anolog base station side retrofit work amount, generally speaking, the minimum transformation demand to anolog base station and test terminal can be realized, engineering difficulty can be significantly simplified.
Under special synchronous pattern, the first mobile terminal that forms anolog base station comprises following behavior:
Set up lasting dedicated service according to prior art and existing network base station and be connected, the Timing Synchronization/Frequency Synchronization keeping method based on general is realized the synchronization of dedicated channel;
Utilize existing mobile terminal transmission technology at existing network base station common synchronization signal location, the common synchronization information of anolog base station to be sent, the same TDD mode of sending method;
Under special synchronous pattern, the second mobile terminal that forms test terminal comprises following behavior:
Implement described common synchronization signal according to prior art at anolog base station common synchronization signal location and receive, use general Timing Synchronization/Frequency Synchronization keeping method maintain synchronization relation, and utilize existing measuring technique to complete measurement.
The virtual measuring method that the present embodiment provides, can anolog base station be set by the some position predetermined and send common synchronization signal, in predetermined position, control point, the signal strength information of anolog base station is carried out the measurement of signal strength signal intensity for test terminal, the signal strength information that can collect according to test terminal judges the validity of predetermined point position, thereby realize virtual test, in the present embodiment, anolog base station and test terminal obtain by limited software upgrading by conventional mobile terminal, therefore the virtual measuring method in compared to existing technology, do not need signal source and frequency spectrograph equipment that cost is high and heavy, both saved large number quipments cost, can improve again convenience and the operating efficiency of virtual test.
Embodiment bis-:
The present invention also provides a kind of virtual test system, and as shown in Figure 2, this virtual test system comprises:
The anolog base station 10 being made up of the first mobile terminal, is arranged on predetermined point position, and for setting up synchronized relation with reference synchronization benchmark, and the above-mentioned reference synchronization benchmark of foundation omnidirectional sends common synchronization signal;
The test terminal 20 being made up of the first mobile terminal, receives above-mentioned common synchronization signal for the position, control point predetermined, obtains the signal strength information of above-mentioned anolog base station;
Analytical equipment 30, for the signal strength information in each position, control point of collecting according to above-mentioned test terminal, judges that whether the selection of above-mentioned predetermined point position is effective.
For instance, in the present embodiment, anolog base station is made up of the first mobile terminal, and test terminal is made up of the second mobile terminal, and the first mobile terminal and the second mobile terminal can be specifically the equipment that mobile phone, mobile phone, panel computer or other have mobile communication function.
Particularly, as shown in Figure 3, anolog base station 10 comprises:
Lock unit 101, for setting up synchronized relation in predetermined point position and reference synchronization benchmark;
Transmitting element 102, for the above-mentioned reference synchronization benchmark of foundation, omnidirectional sends common synchronization signal.
Preferably, above-mentioned reference synchronization benchmark is existing network base station synchronization signal, due to the occurrence scene of virtual test, normally indoor distributed system or dense city blind spot cover and supplement, the present predetermined point of anolog base station position normally can ensure to have that existing network covers, obtain with existing network base station between to synchronize be feasible.
Optionally, above-mentioned reference synchronization benchmark can be satellite positioning signal, the satellite positioning signal sending as global positioning system (be called for short GPS) or Big Dipper navigation system or Galileo navigation system, anolog base station can be built-in and the corresponding receiving chip of corresponding global position system realize the reception of satellite positioning signal, for example select gps system, anolog base station 10 can built-in gps signal receiving chip.
Above-mentioned common synchronization signal at least comprises beacon channel signal and the broadcast channel signal of the resident required synchronizing signal in community, signal strength signal intensity necessary for monitoring.
Optionally, above-mentioned broadcast channel signal be simplify, information is limited, only for reference synchronization, terminal cannot be normally resident.
Preferably, above-mentioned broadcast channel signal is complete, and carries and be used to indicate the mark of this broadcast channel signal from anolog base station, makes terminal can be normally resident and can to recognize current resident community be anolog base station.
For instance, above-mentioned this broadcast channel signal that is used to indicate can be realized by mode below from the mark of anolog base station: in broadcast channel signal, by IMSI International Mobile Subscriber Identity (International Mobile Subscriber Identity, be called for short IMSI) in Mobile Country Code MCC (Mobile Country Code, be called for short MCC) be set to the national code of non-test zone, thus inform that current persistent district, test terminal is for providing the anolog base station of special applications.The scene of for example virtual test application be Chinese (MCC=460), and the MCC code that anolog base station is carried is set to the 432(that can not occur at regional and refers to Iran), taking notify test terminal its as anolog base station.
Taking 3rd Generation Partnership Project (being called for short 3GPP) Long Term Evolution (being called for short LTE) system as example, the resident required synchronizing signal in community comprises that master sync signal (is called for short PSS, Primary Synchronization Signal), auxiliary synchronous signals (be called for short SSS, Secondary Synchronization Signal); The beacon channel signal of signal strength signal intensity necessary for monitoring is the reference signal (being called for short RS, reference signal) of predetermined work bandwidth; Broadcast channel signal comprises that Physical Broadcast Channel (is called for short PBCH, Physical Broadcast Channel) and bearing system block of information (abbreviation SIB, System Information Block) Physical Downlink Shared Channel (be called for short PDSCH, Physical downlink shared channel).
(be called for short TDD with 3GPP time division duplex, time-division duplex) system is example, the resident required synchronizing signal in community comprises descending pilot frequency time slot (being called for short DwPTS, Downlink Pilot Time Slot), the main time slot 0 training sequence intermediate code (being called for short midamble) of carrying; The beacon channel signal of channel strength necessary for monitoring and broadcast channel signal are the main Primary Common Control Physical Channel (being called for short PCCPCH, Primary Common Control Physical Channel) that carries time slot 0.
The anolog base station being made up of the first mobile terminal is during taking existing network base station synchronization signal as reference synchronization benchmark, anolog base station can adopt multiple-working mode, as TDD mode, semiduplex mode, special synchronous pattern etc., below respectively above-mentioned three kinds of mode of operations are carried out to brief description, certainly, art technology also can be selected other suitable mode of operation, does not do concrete restriction at this.
TDD mode: under this pattern, the transmission of common synchronization signal and scheduled duration and not overlapping mutually that the reception of existing network base station synchronization signal is staggered; In TDD mode, the above-mentioned scheduled duration staggering can be multiple system burst chronomere; Taking 3GPP LTE system as example, above-mentioned scheduled duration can be multiple subframe lengths; Taking 3GPP TDD system as example, above-mentioned scheduled duration can be multiple slot lengths (containing special time slot).
Preferably, under TDD mode, the transmission of common synchronization signal and to the reception of existing network base station synchronization signal all in system descending burst region.
Semiduplex mode: under this pattern, the signal of common synchronization sends and the reception of existing network base station synchronization signal is shared to same time point, but cross occurrence;
In semiduplex mode, need the scheduled time to carry out once to the reception of existing network base station synchronization signal, object is the synchronized relation that maintains anolog base station 10 and existing network base station; When this above-mentioned reception to existing network base station synchronization signal enables, common synchronization signal sends and stops, until anolog base station 10 completes with the maintenance of the synchronized relation of existing network base station; The maintaining method of above-mentioned synchronized relation is general Timing Synchronization/Frequency Synchronization keeping method, is prior art, does not repeat them here;
Special synchronous pattern: under this pattern, anolog base station 10 is connected by the predetermined dedicated service continuing with existing network base station model, realize the synchronization of dedicated channel, and the downlink synchronous signal delivery time of anolog base station 10 instruction taking the delivery time of common synchronization signal as synchronous base; In special synchronous pattern, no longer there is the reception to existing network base station synchronization signal;
The synchronization keeping method of above-mentioned dedicated channel is general Timing Synchronization/Frequency Synchronization keeping method, is prior art, does not repeat them here.
It is resident that community can be carried out in the control point default in test terminal 20, particularly, can be to reside in anolog base station or existing network base station; Also can receive the common synchronization signal that anolog base station 10 sends, then the signal strength measurement to anolog base station 10 is implemented in default control point in test terminal 20, to obtain the signal strength information of anolog base station 10.
Particularly, as shown in Figure 3, test terminal 20 comprises:
Resident element 201, resident for the enforcement community, control point default; Particularly, can be to reside in existing network base station or anolog base station;
Receiving element 202, the common synchronization signal sending for receiving anolog base station;
Acquiring unit 203, for according to above-mentioned common synchronization signal, implements the signal strength measurement to anolog base station 10, to obtain the signal strength information of above-mentioned anolog base station.
Alternatively, in the time that test terminal 20 resides in existing network base station, test terminal 20 is in measuring its current persistent district and monitoring collection community thereof and monitoring, receive the common synchronization signal that anolog base station 10 sends, and according to the mode of operation of the anolog base station 10 knowing in advance, anolog base station 10 is carried out to signal strength measurement.
Alternatively, in the time that test terminal 20 resides in anolog base station 10, test terminal 20 receives the common synchronization signal that anolog base station 10 sends, and according to the mode of operation of the anolog base station 10 knowing in advance, anolog base station 10 is carried out to signal strength measurement.
It should be noted that, in the present embodiment, the above-mentioned method that knows in advance anolog base station mode of operation is: arrange in advance the working frequency points mark of anolog base station and cell identity information with its mode of operation of unique instruction, particularly, can adopt mode as shown in the table to set:
| Anolog base station mode of operation | Working frequency points mark | Cell ID |
| Time division duplex | f0 | 5 |
| Half-duplex | f1 | 20 |
| Special synchronous | f2 | 90 |
Test terminal 20 is sent out after the 10 common synchronization signals that send receiving pseudo-terminal, can obtain working frequency points mark and cell ID, thereby determines the mode of operation of anolog base station 10.
Alternatively, in the time that anolog base station 10 works in semiduplex mode, anolog base station 10 is implemented to signal strength measurement and betide in anolog base station common synchronization signal sending time.
Preferably, the common synchronization signal sending time pattern of above-mentioned anolog base station 10 is notified in the broadcast of anolog base station 10.
Alternatively, cycle, starting point and the side-play amount of the common synchronization signal sending time of anolog base station 10 retrain in advance, only issue frame number information and derive for test terminal in broadcast.
Alternatively, if common synchronization signal sending time test terminal the unknown of above-mentioned anolog base station 10, test terminal 20 is abandoned means by invalid/abnormal measurement of predetermined quantity and is resisted within the unit interval.
In the time that anolog base station 10 works in special synchronous pattern, the same known technology of the signal strength measurement of test terminal 20, is not repeating at this.
In the present embodiment, anolog base station and test terminal form by conventional mobile terminal (the first mobile terminal, the second mobile terminal), but also need certain Software adapting, below describe:
Under TDD mode, the reforming content of realizing anolog base station based on the first mobile terminal comprises: make anolog base station in continuing the acceptance of existing network base station synchronization signal, can send in precalculated position common synchronization signal; The transformation that the second mobile terminal is realized to test terminal comprises: make test terminal monitor the common synchronization signal from existing network base station and anolog base station at diverse location.Under TDD mode, to the retrofit work amount of the first mobile terminal and the second mobile terminal little.
For realizing this TDD mode, the transformation of anolog base station requires the first mobile terminal to receive respectively and to send in two moment that possess certain hour interval, and this belongs to known technology for conventional terminal; The transformation of test terminal requires the second mobile terminal to receive the common synchronization signal of measuring from different districts (existing network base station and anolog base station) at diverse location, this just requires conventional terminal to implement signal reception in different time position, and carry out ionization meter, this belongs at diverse location and repeats the function that this has supported for conventional terminal, still belongs to known technology.
Under semiduplex mode, the reforming content of realizing anolog base station based on the first mobile terminal comprises: make anolog base station can accept existing network base station synchronization signal, and timesharing sends common synchronization signal; The reforming content of realizing test terminal based on the second mobile terminal comprises: make test terminal monitor the common synchronization signal from existing network base station and anolog base station in same position timesharing; TDD mode, larger to the retrofit work of the first mobile terminal and the second mobile terminal under semiduplex mode relatively.
For realizing this semiduplex mode, the transformation of anolog base station requires reception and the transmission of the first mobile terminal in the ad-hoc location time-division, this type of half-duplex technology belongs to known technology in mobile communications industry, especially can directly support for the terminal of frequency division multiplexing fdd mode; The transformation of test terminal requires the second mobile terminal normally to receive common synchronization signal, but described common synchronization signal within a certain period of time (be anolog base station receive existing network base station synchronization signal and close while transmission) lack, the second mobile terminal time can be differentiated common synchronization signal validity carrying out synchronizing signal reception; Processing method is as follows:
A, the second mobile terminal are implemented common synchronization signal and are received;
Do you B, judge that described common synchronization signal quality is greater than default thresholding Th1? to be considered as effectively continuing to carry out; No, invalid, abandon this common synchronization signal, return to steps A;
Described signal quality comprises signal to noise ratio, Signal to Interference plus Noise Ratio, and obtain manner is known technology; Default thresholding is empirical value, span-6 ~ 10dB;
Optionally, also can comprise:
Do you B ', judge that average signal quality difference in described common synchronization signal quality and Preset Time is less than default thresholding Th2? to be considered as effectively continuing to carry out; No, invalid, abandon this common synchronization signal, return to steps A;
Described Preset Time span 20～100ms; Default thresholding span 0 ~ 5dB;
C, use described effective common synchronization signal implement synchronous with measure.
Under special synchronous pattern, the reforming content of realizing anolog base station based on the first mobile terminal comprises: anolog base station is connected by the predetermined dedicated service continuing with existing network base station model, realize the synchronization of dedicated channel, and the delivery time of common synchronization signal is the downlink synchronous signal delivery time of synchronous base instruction; Do not need test terminal to transform, because for test terminal, the common synchronization signal location that anolog base station sends is consistent with existing network base station location, is only the difference of cell ID and working frequency points, without any transformation action.Visible, with respect to first two mode of operation, special synchronous pattern can realize zero transformation of test terminal under the prerequisite of suitable anolog base station side retrofit work amount, generally speaking, the minimum transformation demand to anolog base station and test terminal can be realized, engineering difficulty can be significantly simplified.
For realizing this special synchronous pattern, the transformation of anolog base station requires the first mobile terminal setting up the predetermined dedicated service connection continuing, realize dedicated channel (preferably speech of the dedicated channel here, the poor throughput business such as web page browsing, to reserve idle period) synchronization time, send downlink synchronous signal in precalculated position, be equivalent to requirement terminal when regular traffic carries out, section (at one's leisure, period beyond the shared period of dedicated service) additionally send, this is similar to service concurrence demand for conventional terminal, in the transmitting-receiving demand of different time, can be achieved based on prior art.
For realizing above-mentioned three kinds of mode of operations, the Software adapting of the first mobile terminal and the second mobile terminal is belonged to those skilled in the art's common practise, do not repeat them here.
It should be noted that, in analytical equipment, can comprise that corresponding software carrys out the signal strength information that analytical test terminal collects, and according to test terminal in each control point to the signal strength information of anolog base station judge the validity of the predetermined point position of anolog base station, concrete, can adopt following determination methods:
According to the coverage of design in advance and the requirement of low intensity limit, whether the signal strength information that the different monitoring point position institute overlay area that judgement is collected is more than or equal to coverage requirement and position, each control point is more than or equal to low intensity limit, if, this predetermined point position is effective site, otherwise this predetermined point position is not effective site.
Below by two concrete examples, this virtual test system and workflow thereof are described:
Example one:
In this preferred embodiment, the concrete application scenarios of virtual test system is: station, the street benefit that is applied to LTE TDD system is blind, and territory, blind area to be mended exists the covering of existing network base station, the optimization but covering quality is still needed.In the present embodiment, the hardware form that forms the first mobile terminal of anolog base station is radio network gateway, and the hardware form that forms the second mobile terminal of test terminal is fixed CDMA WLL.
Step S1, anolog base station and reference synchronization benchmark are set up synchronized relation;
In the present embodiment, above-mentioned reference synchronization benchmark be anolog base station at test position taking existing network base station synchronization signal as reference synchronization benchmark, by set up and existing network base station between synchronized relation be achieved;
In this step, synchronized relation method for building up between above-mentioned anolog base station and existing network base station is realized down-going synchronous with conventional terminal small region search method (treatment step refers to 3GPP TS36.213) and is obtained, synchronizing signal search based on existing network base station, sets up down-going synchronous;
Step S2, the above-mentioned reference synchronization benchmark of anolog base station foundation omnidirectional send common synchronization signal.
Above-mentioned common synchronization signal at least comprises beacon channel signal and the broadcast channel signal of the resident required synchronizing signal in community, signal strength signal intensity necessary for monitoring;
In the present embodiment, above-mentioned broadcast channel information be simplify, information is limited, only for reference synchronization, terminal cannot be normally resident;
The implementation method of broadcast channel signal above-mentioned simplification, that information is limited is: above-mentioned broadcast channel information content is filled to the random number without any practical significance;
In the present embodiment, anolog base station adopts 3rd Generation Partnership Project (being called for short 3GPP) Long Term Evolution (being called for short LTE) system, in the common synchronization signal sending at anolog base station, the resident required synchronizing signal in community comprises that master sync signal (is called for short PSS, Primary Synchronization Signal) and auxiliary synchronous signals (abbreviation SSS, Secondary Synchronization Signal), the beacon channel of signal strength signal intensity necessary for monitoring is that the reference signal of predetermined work bandwidth (is called for short RS, reference signal), broadcast channel signal comprises that Physical Broadcast Channel (is called for short PBCH, Physical Broadcast Channel) and bearing system block of information (abbreviation SIB, System Information Block) Physical Downlink Shared Channel (be called for short PDSCH, Physical downlink shared channel).
In the present embodiment, the transmission of common synchronization signal adopts TDD mode, and when anolog base station is during taking existing network base station synchronization signal as reference synchronization benchmark, common synchronization signal sends and to the reception of the existing network base station synchronization signal scheduled duration and not overlapping mutually that staggers;
In the present embodiment, above-mentioned scheduled duration is 3 subframe lengths, i.e. 3ms.
In the present embodiment, common synchronization signal send with to the reception of existing network base station synchronization signal all in system descending burst region, be respectively subframe 0 and subframe 3.
In the present embodiment, the first mobile terminal that forms anolog base station comprises following behavior:
Implement common synchronization signal according to prior art for existing network base station in subframe 0 and receive, use general Timing Synchronization/Frequency Synchronization keeping method maintain synchronization relation.
Transmission technology in subframe 3 according to existing mobile terminal, implements the common synchronization signal of anolog base station to send.
Step S3, test terminal receive above-mentioned common synchronization signal in position, control point, obtain the signal strength information of above-mentioned anolog base station.
This step S3 further comprises:
S31, test terminal are resident in enforcement community, default control point, reside in specifically anolog base station or existing network base station.
The signal strength measurement to anolog base station is implemented in default control point in S32, test terminal.
In the present embodiment, test terminal resides at existing network base station, test terminal is measured when monitoring for current service cell and monitoring collection community thereof, according to the anolog base station mode of operation knowing in advance (being TDD mode in the present embodiment) and relevant information, anolog base station is implemented to signal strength measurement, to obtain the signal strength information of anolog base station;
In the time that anolog base station works in TDD mode, test terminal implements to measure according to the common synchronization signal location of constraint in advance;
In the present embodiment, the second mobile terminal that forms test terminal comprises following behavior:
Implement common synchronization signal according to prior art for existing network base station in subframe 0 and receive, and complete measurement;
Retrain scheduled duration 3ms in advance, judge in subframe 3 and implement the reception of common synchronization signal according to prior art for anolog base station, and complete measurement;
The signal strength information of the different monitoring point position that S4, foundation are collected, the validity of confirmation point position or the siting of station.
In the present embodiment, the validity determination methods of above-mentioned some position or the siting of station is: according to the coverage of design in advance and the requirement of low intensity limit, the signal strength information that the different monitoring point position institute overlay area that judgement is collected is more than or equal to coverage requirement and position, each control point is more than or equal to low intensity limit, meets validity.
Example two:
This preferred embodiment is applied to the antenna point position design of the indoor distributed system of LTE FDD system, does not have effective public network signal to cover in this indoor application scene.In the present embodiment, the hardware form of anolog base station is panel computer, and the hardware form of test terminal is mobile phone.
P1, anolog base station and reference synchronization benchmark are set up synchronized relation;
In the present embodiment, described reference synchronization benchmark is GPS (Global Position System), is achieved by special GPS receiving chip built-in in anolog base station;
P2, anolog base station send common synchronization signal according to reference synchronization benchmark omnidirectional;
Described common synchronization signal at least comprises beacon channel and the broadcast channel of the resident required synchronizing signal in community, signal strength signal intensity necessary for monitoring;
Taking the 3rd Generation Partnership Project of the present embodiment (being called for short 3GPP) Long Term Evolution (being called for short LTE) system as example, the resident required synchronizing signal in community comprises that master sync signal (is called for short PSS, Primary Synchronization Signal), auxiliary synchronous signals (be called for short SSS, Secondary Synchronization Signal); The beacon channel of signal strength signal intensity necessary for monitoring is the reference signal (being called for short RS, reference signal) of predetermined work bandwidth; Broadcast channel signal comprises that Physical Broadcast Channel (is called for short PBCH, Physical Broadcast Channel) and bearing system block of information (abbreviation SIB, System Information Block) Physical Downlink Shared Channel (be called for short PDSCH, Physical downlink shared channel);
In the present embodiment, described broadcast channel signal is complete, and carries anolog base station special identifier, and terminal is can be normally resident and can to recognize current resident community be anolog base station;
In the present embodiment, the method that the current resident community of identification, test terminal is anolog base station is: in the broadcast message that anolog base station provides, by IMSI International Mobile Subscriber Identity (International Mobile Subscriber Identity, be called for short IMSI) in Mobile Country Code MCC (Mobile Country Code, be called for short MCC) be set to the national code of non-test zone, thus inform that current persistent district, test terminal is for providing the anolog base station of special applications; In the present embodiment, the scene of virtual test application be Chinese (MCC=460), and the MCC code that anolog base station is carried is set to the 432(that can not occur at regional and refers to Iran), taking notify test terminal its as anolog base station;
P3, test terminal are in default control point position acquisition signal strength measurement information
This step P3 further comprises:
P31. test terminal is resident in enforcement community, default control point;
P32. signal strength measurement is implemented in default control point in test terminal;
In the present embodiment, pseudo-terminal, in relying on the state of global position system reference synchronization, uses known method of measurement to implement signal strength measurement to anolog base station;
The signal strength information of the different monitoring point position that P4, foundation are collected, the validity of confirmation point position or the siting of station.
In the present embodiment, the validity determination methods of described position or the siting of station is: according to the low intensity limit requirement of the tested point position of design in advance, if the intensity of each tested point position that judgement is collected is more than or equal to low intensity limit, meets validity, otherwise do not meet.
The virtual test system that the present embodiment provides, anolog base station can send common synchronization signal in predetermined some position, the measurement of signal strength signal intensity can be carried out in predetermined position, control point in test terminal to the signal strength information of anolog base station, the signal strength information that analytical equipment can be collected according to test terminal judges the validity of predetermined point position, thereby realize virtual test, because the anolog base station in the present embodiment and test terminal obtain by limited software upgrading by conventional mobile terminal, virtual measuring method compared to existing technology, do not need signal source and frequency spectrograph equipment that cost is high and heavy, both saved a large amount of equipment costs, can improve again convenience and the operating efficiency of virtual test.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is can carry out the hardware that instruction is relevant by program to complete, this program can be stored in a computer-readable recording medium, storage medium can comprise: flash disk, read-only memory (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), disk or CD etc.
The virtual measuring method and the system that above the embodiment of the present invention are provided are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (14)
1. a virtual measuring method, is characterized in that, comprising:
The anolog base station being made up of the first mobile terminal is set up synchronized relation in predetermined point position and reference synchronization benchmark;
The described reference synchronization benchmark of described anolog base station foundation omnidirectional sends common synchronization signal;
The test terminal being made up of the second mobile terminal receives described common synchronization signal in predetermined position, control point, obtains the signal strength information of described anolog base station;
The signal strength information in each position, control point of collecting according to described test terminal, judges whether described predetermined point position is effective site.
2. method according to claim 1, is characterized in that, described reference synchronization benchmark is existing network base station synchronization signal;
Described anolog base station is set up synchronized relation in position, preset with reference synchronization benchmark and is comprised: described anolog base station is connected by setting up with existing network base station the predetermined dedicated service continuing in position, preset, realizes the synchronization of dedicated channel;
The described reference synchronization benchmark of described anolog base station foundation omnidirectional sends common synchronization signal and comprises: described anolog base station sends common synchronization signal at the downlink synchronous signal delivery time of described reference synchronization benchmark instruction.
3. method according to claim 1, is characterized in that, described reference synchronization benchmark is existing network base station synchronization signal;
Described anolog base station is set up synchronized relation at position, preset and reference synchronization benchmark and is comprised: described anolog base station receives existing network base station synchronization signal in position, preset;
Described anolog base station sends common synchronization signal according to described reference synchronization benchmark omnidirectional and comprises: described anolog base station sends common synchronization signal according to described existing network base station synchronization signal omnidirectional, the reception of the transmission of described common synchronization signal and the described existing network base station synchronization signal scheduled duration and not overlapping mutually that staggers.
4. method according to claim 1, is characterized in that, described reference synchronization benchmark is existing network base station synchronization signal;
Described anolog base station is set up synchronized relation at position, preset and reference synchronization benchmark and is comprised: described anolog base station receives existing network base station synchronization signal in position, the preset scheduled time;
The described reference synchronization benchmark of described anolog base station foundation omnidirectional sends common synchronization signal and comprises: the described existing network base station synchronization signal of described anolog base station foundation omnidirectional sends common synchronization signal, and the reception of the transmission of described common synchronization signal and described existing network base station synchronization signal shares same time point but cross occurrence.
5. according to the method described in claim 1-4 any one, it is characterized in that, described common synchronization signal comprises: beacon channel signal and the broadcast channel signal of the resident required synchronizing signal in community, signal strength signal intensity necessary for monitoring.
6. according to the method described in claim 1-4 any one, it is characterized in that, described broadcast channel signal comprises complete broadcast channel signal and is used to indicate the mark of described broadcast channel signal from described anolog base station.
7. a virtual test system, is characterized in that, comprising:
The anolog base station being made up of the first mobile terminal, is arranged on predetermined point position, and for setting up synchronized relation with reference synchronization benchmark, and the described reference synchronization benchmark of foundation omnidirectional sends common synchronization signal;
The test terminal being made up of the second mobile terminal, receives described common synchronization signal for the position, control point predetermined, obtains the signal strength information of described anolog base station;
Analytical equipment, for the signal strength information in each position, control point of collecting according to described test terminal, judges that whether the selection of described predetermined point position is effective.
8. system according to claim 7, is characterized in that, described reference synchronization benchmark is existing network base station synchronization signal;
Described anolog base station, specifically for being connected by setting up with existing network base station the predetermined dedicated service continuing, is realized the synchronization of dedicated channel, and sends common synchronization signal at the downlink synchronous signal delivery time of described reference synchronization benchmark instruction.
9. system according to claim 7, is characterized in that, described reference synchronization benchmark is existing network base station synchronization signal;
Described anolog base station receives existing network base station synchronization signal specifically for position, preset; And for sending common synchronization signal according to described existing network base station synchronization signal omnidirectional, the reception of the transmission of described common synchronization signal and the described existing network base station synchronization signal scheduled duration and not overlapping mutually that staggers.
10. system according to claim 7, is characterized in that, described reference synchronization benchmark is existing network base station synchronization signal;
Described anolog base station is specifically for receiving existing network base station synchronization signal in position, the preset scheduled time; And sending common synchronization signal for the described existing network base station synchronization signal of foundation omnidirectional, the reception of the transmission of described common synchronization signal and described existing network base station synchronization signal shares same time point but cross occurrence.
11. according to the system described in claim 7-10 any one, it is characterized in that, described common synchronization signal comprises: beacon channel signal and the broadcast channel signal of the resident required synchronizing signal in community, signal strength signal intensity necessary for monitoring.
12. according to the system described in claim 7-10 any one, it is characterized in that, described broadcast channel signal comprises complete broadcast channel signal and is used to indicate the mark of described broadcast channel signal from described anolog base station.
13. 1 kinds of anolog base stations, is characterized in that, described anolog base station is made up of mobile terminal, and described anolog base station comprises:
Lock unit, for setting up synchronized relation in predetermined point position and reference synchronization benchmark;
Transmitting element, for the described reference synchronization benchmark of foundation, omnidirectional sends common synchronization signal.
14. 1 kinds of test terminals, is characterized in that, described test terminal is made up of mobile terminal, and described test terminal comprises:
Resident element, resident for the enforcement community, position, control point default;
Receiving element, the common synchronization signal sending for receiving anolog base station;
Measuring unit, for according to described common synchronization signal, implements the signal strength measurement to described anolog base station, to obtain the signal strength information of described anolog base station.
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