CN103200584A - Correction method and device of indoor propagation model - Google Patents
Correction method and device of indoor propagation model Download PDFInfo
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- CN103200584A CN103200584A CN2012100010409A CN201210001040A CN103200584A CN 103200584 A CN103200584 A CN 103200584A CN 2012100010409 A CN2012100010409 A CN 2012100010409A CN 201210001040 A CN201210001040 A CN 201210001040A CN 103200584 A CN103200584 A CN 103200584A
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Abstract
The invention discloses a correction method and a device of an indoor propagation model. The correction method of the indoor propagation model includes: detecting parameters of signals which are sent by a transmitter; using the parameters to correct the indoor propagation model. According to the correction method and the device of the indoor propagating model, detecting the obtained parameters and using the parameters are achieved being combined together to achieve correction of the indoor propagation model together, and the problems that in the relative technology, low efficiency is caused due to the fact that measurements and data separation are adopted, and a mass of manpower and material resources need to be expended are overcome, and then improving correction efficiency of the indoor propagation model is achieved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of bearing calibration and device of indoor propagation model.
Background technology
In mobile communication, the indoor communications user has accounted for most ratio, and therefore the planning and designing of indoor covering are extremely important, and the quality of indoor covering design has determined quality and user's impression of mobile communications network.
Indoor covering can be adopted special-purpose indoor covering system usually, for example indoor distributed system etc.In the planning and designing stage of indoor covering system, need by indoor propagation model and corresponding equipment, the distance that each antenna is covered and signal strength signal intensity are planned and are predicted.Industry also has some general models to predict at present, but general model is difficult to be fit to actual each scene, so precision is limited.In order to promote design accuracy, just need set up the simulation test that transmitter and receiver carries out signal, and the data of gathering be imported corresponding tool software carry out data processing, the correction of model and the prediction of signal.Present equipment, general volume ratio is huger, and testing equipment and Data Management Analysis equipment are independently, need separately handle, can't obtain corresponding result in real time in the test process, design engineer's technical capability is required than higher, therefore cause operating efficiency low, need expend lot of manpower and material resources.
At in the correlation technique indoor propagation model being carried out the bearing calibration inefficiency, need expend the problem of lot of manpower and material resources, effective solution is not proposed at present as yet.
Summary of the invention
At in the correlation technique indoor propagation model being carried out the bearing calibration inefficiency, need expend the problem of lot of manpower and material resources, the invention provides a kind of bearing calibration and device of indoor propagation model, to address this problem at least.
According to an aspect of the present invention, provide a kind of bearing calibration of indoor propagation model, having comprised: the parameter that detects the signal of transmitter transmission; Use described parameter that the indoor propagation model is proofreaied and correct.
Preferably, the parameter of the signal of detection transmitter transmission comprises: the plane graph and the test route that obtain building to be tested; Detect the following parameter of the above test route up-sampling point of described plane graph: the path loss between the received power of described sampled point, described transmitter and the described sampled point and the distance of described transmitter and described sampled point.
Preferably, using described path loss parameter that the indoor propagation model is proofreaied and correct comprises: the indoor propagation model of selecting building correspondence to be detected; According to the described received power of described sampled point, described path loss and described distance the parameter of described indoor propagation model is proofreaied and correct.
Preferably, said method also comprises: the Reference Signal Received Power (RSRP) of determining described sampled point according to the transmitting power of described parameter and described transmitter.
Preferably, said method also comprises: the data that described sampled point test is obtained show.
According to a further aspect in the invention, provide a kind of means for correcting of indoor propagation model, having comprised: first detection module, the parameter of the signal that sends for detection of transmitter; Correction module is used for using described parameter that the indoor propagation model is proofreaied and correct.
Preferably, described first detection module comprises: acquisition module, for the plane graph and the test route that obtain building to be tested; Second detection module is for detection of the following parameter of the above test route up-sampling point of described plane graph: the path loss between the received power of described sampled point, described transmitter and the described sampled point and the distance of described transmitter and described sampled point.
Preferably, described correction module comprises: select module, be used for selecting the indoor propagation model of building correspondence to be detected; Processing module is used for according to the described received power of described sampled point, described path loss and described distance the parameter of described indoor propagation model being proofreaied and correct.
Preferably, said apparatus also comprises: determination module, and for the Reference Signal Received Power (RSRP) of determining described sampled point according to the transmitting power of described parameter and described transmitter.
Preferably, said apparatus also comprises: display module is used for the data that described sampled point test obtains are shown.
Preferably, the means for correcting of indoor propagation model disposes separately or is integrated on the portable terminal.
By the present invention, after adopting the parameter of the signal that detects the transmitter transmission, use this parameter that indoor model is proofreaied and correct, solved and carried out in the correlation technique in the check and correction process of indoor propagation model, adopt measuring and calculating and data separating to cause inefficiency, need expend the problem of lot of manpower and material resources, and then reached the effect that improves the correction efficient of indoor propagation model.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the bearing calibration of the indoor propagation model of the embodiment of the invention;
Fig. 2 is the structured flowchart according to the means for correcting of the indoor propagation model of the embodiment of the invention;
Fig. 3 is the means for correcting preferred construction block diagram according to the indoor propagation model of the embodiment of the invention;
Fig. 4 is the schematic diagram according to the hardware module of the intelligent school die device of the embodiment of the invention;
Fig. 5 is the flow chart according to the method for the intelligence correction of the indoor propagation model of the embodiment of the invention;
Fig. 6 is the schematic diagram of proofreading and correct test according to the intelligence of the indoor propagation model of the embodiment of the invention;
Fig. 7 is the schematic diagram according to the signal imitation testing authentication of the embodiment of the invention; And
Fig. 8 is the flow chart that carries out the school modulo operation according to the school die device that is integrated into intelligent terminal and mobile phone of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Present embodiment provides a kind of bearing calibration of indoor propagation model, and Fig. 1 is the flow chart according to the bearing calibration of the indoor propagation model of the embodiment of the invention, and this method comprises following step S102 and step S104.
Step S102: the parameter that detects the signal of transmitter transmission.
Step S104: use this parameter that the indoor propagation model is proofreaied and correct.
Pass through above-mentioned steps, after the parameter of the signal that the detection transmitter sends, use this parameter that indoor model is proofreaied and correct, realize the parameter that detection is obtained and used this parameter that the indoor propagation model is proofreaied and correct the realization that combines, overcome and adopted measuring and calculating and data separating to cause inefficiency in the correlation technique, need expend the problem of lot of manpower and material resources, and then reach the correction efficient that improves the indoor propagation model.
As one preferred embodiment, step 102 can adopt multiple mode to detect the parameter of the signal of transmitter transmission, can choose multiple mode selects a plurality of sampled points to detect, more excellent, in order to obtain a plurality of sampled points of building to be tested, can detect in the following way: the plane graph and the test route that obtain building to be tested; Detect the following parameter of the above test route up-sampling point of described plane graph: the path loss between the received power of described sampled point, described transmitter and the described sampled point and the distance of described transmitter and described sampled point.This preferred implementation can be obtained a plurality of parameters for the indoor propagation model tuning of building to be tested.
As another more excellent execution mode, step S104 can use the detected parameter of step S102 that the indoor propagation model is proofreaied and correct, at first can select the indoor propagation model of building correspondence to be detected, then can be according to the described received power of described sampled point, described path loss and described distance are proofreaied and correct the parameter of described indoor propagation model, adopt received power in this preferred implementation, path loss and distance and indoor propagation model just can be determined Model parameter, for example: can be according to path loss values PL and the distance B of sampled point, right
Model is proofreaied and correct, and proofreaies and correct L (d0) and n value in the output model.
As another preferred implementation, this method can also be determined the Reference Signal Received Power (RSRP) of described sampled point according to the transmitting power of this parameter and this transmitter, this optimal way, the requirement that can whether expire design objective for detection of the RSRP of indoor test point, for example, indoor model is proofreaied and correct finish after, can also operation parameter and transmitting power determine the RSRP of this test point, judge whether greater than the design objective corresponding parameters, if greater than, then determine to meet design requirement, otherwise, the field intensity of this test point does not reach the predetermined design standard, can be used as the reference of adjusting antenna.
As another preferred embodiment, the data that this sampled point test can also be obtained show that the data of the feasible test of this preferred implementation testee are more expediently obtained, and have improved the conveniency of this method.
Need to prove, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the flow chart of accompanying drawing, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
In another embodiment, also provide a kind of correction software of indoor propagation model, this software is for carrying out the technical scheme that above-described embodiment and preferred embodiment are described.
In another embodiment, also provide a kind of storage medium, stored the correction software of above-mentioned indoor propagation model in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
The embodiment of the invention also provides a kind of means for correcting of indoor propagation model, the means for correcting of this indoor propagation model can be used for realizing bearing calibration and the preferred implementation of above-mentioned indoor propagation model, carried out explanation, repeat no more, the module that relates in the correction to this indoor propagation model describes below.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described system and method for following examples is preferably realized with software, hardware, perhaps the realization of the combination of software and hardware also may and be conceived.
Fig. 2 is the structured flowchart according to the means for correcting of the indoor propagation model of the embodiment of the invention, and as shown in Figure 2, this device comprises: first detection module 22 and correction module 24 are described in detail said structure below.
First detection module 22, the parameter of the signal that sends for detection of transmitter; Correction module 24 is connected to first detection module 22, is used for using first detection module 22 to detect this parameter that obtains the indoor propagation model is proofreaied and correct.
Fig. 3 is the means for correcting preferred construction block diagram according to the indoor propagation model of the embodiment of the invention, as shown in Figure 3, first detection module 22 comprises: acquisition module 222 and second detection module 224, correction module 24 comprises: select module 242 and processing module 244, said apparatus also comprises: determination module 32 is described in detail said apparatus below.
Acquisition module 222 is for the plane graph and the test route that obtain building to be tested; Second detection module 224, be connected to acquisition module 222, the following parameter of the above the test route up-sampling point of described plane graph that gets access to for detection of acquisition module 222: the path loss between the received power of described sampled point, described transmitter and the described sampled point and the distance of described transmitter and described sampled point.
Correction module 24 comprises: select module 242, be used for selecting the indoor propagation model of building correspondence to be detected; Processing module 244 is connected to and selects module 242, is used for according to the described received power of described sampled point, described path loss and described distance the parameter of this indoor propagation model of selection module 242 selections being proofreaied and correct.
Said apparatus also comprises: determination module 32 is connected to the Reference Signal Received Power (RSRP) that first detection module 22 is used for determining according to the transmitting power that first detection module 22 detects the parameter that obtains and this transmitter sampled point.
Said apparatus also comprises: display module 34, be connected to second detection module 224, and be used for second detection module 224 is shown in the data that the sampled point test obtains.
Preferably, in order to improve the means for correcting configuration flexibility of indoor propagation model, this device can dispose separately or be integrated on the portable terminal.
Describe below in conjunction with preferred embodiment, following preferred embodiment combines above-described embodiment and preferred implementation.
Preferred embodiment one
The device that present embodiment provides a kind of intelligence of indoor propagation model to proofread and correct, in actual applications, the device that the intelligence of this indoor propagation model is proofreaied and correct fits into enforcement usefulness by the device more than 2 or 2, and the hardware module of each device is the same.This device can design separately, also can integratedly be designed in communication intelligent terminal and the mobile phone.Fig. 4 is the schematic diagram according to the hardware module of the intelligent school die device of the embodiment of the invention, as shown in Figure 4, this device comprises: signal transmitting and receiving module 41, power module 42, control module 43, data memory module 44, data processing module 45, communication module 46, demonstration and interactive module 47 are described in detail said structure below.
Signal transmitting and receiving module 41: this functions of modules is to transmit and receive signal.
Signal is transmitted into aerial by the antenna in the module and takes in two kinds of the signal flow points that transmits and receives from air interface:
First kind is common CW (Continue Wave) continuous wave signal stream, and the CW signal flowed before not receiving command information, always with fixed-bandwidth and power, and stable transmitting and receiving of continuing, it is mainly used to parameters such as calculating path loss.
Second kind is communication signal stream, and communication signal stream is mainly used in the communication between emitter and the receiving system, and interaction parameter and command information are convenient to by receiving system emitter be carried out the setting of parameter and function and the instruction control of action.
Antenna in the signal transmitting and receiving module 41 in order to reduce antenna volume, and guarantees that the gain of all directions is the same, adopts the antenna of the 0dBi of omnidirectional gain.
Power module 42: this functions of modules is that entire equipment is powered, and contains battery, makes whole device not have under the situation of AC power, and work that can continous-stable needs battery is charged before using.
Control module 43: this functions of modules is that control each several part module is carried out operate as normal according to instruction, monitors the state of other each modules, is the nucleus module of whole device.
Data memory module 44: this functions of modules is for the data of storage test, through data and result after handling.Storage card is inserted and changes in the data memory module support.
Data processing module 45: this functions of modules is that the data that test is gathered are handled, and exports corresponding result.In this device, propagation model revision calculates, path loss calculation, the communication system signal analog computation, etc. data processing function and algorithm, all be achieved in this module.
Communication module 46: this functions of modules is communication, feedback and the control between the transmitter and receiver.By the communication signal stream that this module produces, to launch by transceiver module, the communication signal stream by transceiver module receives can be further processed by communication module.In this device application process, emitter is carried out the setting of parameter and function with receiving system and the instruction of action all is to be responsible for by this module.
Show and interactive module 47: this functions of modules is to carry out the man-machine mutual and real-time result of demonstration that carries out.This module comprises touching display screen curtain and corresponding support circuit, the real-time output of test and result, and the inputs of parameter setting and instruction etc. can be carried out input and output by this display screen.
Need to prove that this device can design separately, also can integratedly be designed in communication intelligent terminal and the mobile phone.
Adopt the means for correcting of the indoor propagation model of said structure, can be achieved as follows effect:
1) volume is little, can test by hand-held mode.
2) can integratedly be designed in communication intelligent terminal and the mobile phone, cost is lower, uses more convenient.
3) carry battery supply, need not to connect AC power.
Preferred embodiment two
The method that present embodiment provides a kind of intelligence of indoor propagation model to proofread and correct, this method structure in conjunction with the preferred embodiments is described, Fig. 5 is the flow chart according to the method for the intelligence correction of the indoor propagation model of the embodiment of the invention, as shown in Figure 5, this method comprises the steps that S502 is to step S514.
Step S502: pattern setting.
Wherein, include but not limited in the demonstration of device and the mode parameter of interactive interface setting:
(1) transmits and receives the pattern setting.
Each device all supports to transmit and receive pattern, one of them device is set is transmitter mode, and the another one device is receiver mode.The device of receiver mode can carry out parameter query and control completely to the device of one or more transmitter mode.
(2) field intensity simulation or model tuning functional mode arrange.
This device is supported but is not limited to following two kinds of functional modes:
Field intensity simplation verification pattern: the indoor distributed system of simplation verification design is in the received power of acceptance point automatically.
Model tuning pattern: calculate path loss values and propagation model parameter between analog transmissions point and the acceptance point automatically.
Step S504: model (system parameters) arranges.
Include but not limited in the demonstration of device and the model parameter of interactive interface setting:
(1) a kind of in the indoor propagation model tabulation that can select to give tacit consent to.
(2) can import and expand propagation model voluntarily.
(3) parameters such as frequency of propagation model are set.
If the simplation verification of communication system test, can also be to the quantity of the frequency of the wireless communication system of needs simulation, bandwidth, designing antenna and transmitting power, transmitter antenna gain (dBi), the antenna gain of the receiving terminal of design of communications system etc.
Step S506: plane graph and test route import.
With information input receivers such as the plane graph of building, test routes, mark the position of starting point.
Step S508: transmitting site is selected.
Choose the place of carrying out antenna arrangement at indoor needs, emitter is placed in suitable height and position.In the plane graph in receiving system, mark the location point of transmitting antenna.
Step S510: school mould (checking) test.
By receiving system, emitter is carried out the affirmation of pattern and parameter and revise.After the affirmation, open emitter by receiving system and carry out the emission of signal.
Hand receiving equipment, go to the starting point of test route, click record button, carry out the test of school mould along test route.
Test is clicked stop button to the route terminal point.
Step S512: data storage and processing.
In the test process, receiving terminal calculates and stores each sampled point, and according to corresponding algorithm and formula, data is handled.
Step S514: result's output.
Receiving system can carry out real-time ground physics and chemistry demonstration and numeral output to step S512 storage and all data of handling.If think that data are too many, also can selectively export.After test is finished, also support the data of test are carried out playback.
By above-mentioned steps, can be achieved as follows beneficial effect:
1) real-time storage, processing test data output test result in real time.Test process need not to be connected with portable computer with result treatment.
2) can come long-range all parameters that transmitting and receiving apparatus is set easily by receiving system, and start emission, finish remote controls such as emission.
3) can carry out multinomial functional tests such as model tuning, communication system signal simulation, building penetration loss test.
Adopt the device of this preferred embodiment to carry out the correction of indoor model, can reduce the threshold of model tuning in the indoor planning design work of radio communication greatly, improved operating efficiency and planning precision, improve the performance of communication network.
Preferred embodiment three
Present embodiment provides a kind of intelligent correcting method as the propagation model revision method, and this method comprises the steps that S602 is to step S614.
S602: pattern setting.
(1) transmits and receives the pattern setting.
One of them device is set is transmitter mode, the another one device is receiver mode, setting completed for pattern, two devices are all clicked after the communication startup, communication streams between the transmitter and receiver just begins alternately, receiver just can be inquired about the parameter state of transmitter, can control completely transmitter.
(2) field intensity simulation or model tuning functional mode arrange.
At step S602, be arranged to the model tuning functional mode.
Step S604: model setting.
The kind of indoor propagation model is many, selects for use logarithm the most frequently used in the actual engineering to describe apart from path loss model below, and the formula of this model is as follows:
L in the following formula
50(d) be average path loss (dB), d is the distance (m) between the transmitting-receiving, L (d
0) be that launch point is to reference distance d
0Path loss, d
0Be reference distance (m), generally get 1 meter, n is the average path loss index that depends on environment.
Reference path loss L (d
0) can or utilize the free space path loss expression to calculate by test.The path loss formula of free space is as follows:
L
FS＝-27.55+20logf(MHz)+20logd(m)，
On 1m free space path, the path loss L (d of 2600MHz frequency
0) be 41dB.
The frequency F that propagation model is set is 2600MHz.
Step S606: the importing of plane graph and test route.
With information input receivers such as the plane graph of building, test routes, and mark test starting point A and B, as shown in Figure 6.
Step S608: transmitting site is selected:
Choose the place T that carries out antenna arrangement at indoor needs, emitter is placed in suitable height and position.In the plane graph in receiving system, mark the location point T of transmitting antenna.The transmitting antenna position store automatically and be recorded as (Xt, Yt).
Step S610: school mould test.
By receiving system, emitter is carried out the affirmation of pattern and parameter and revise.After the affirmation, open emitter by receiving system and carry out the emission of signal.
Hand receiving equipment, go to the starting point A of test route, click record button, carry out the test of school mould along test route.
Test is clicked stop button to route terminal point B.
Step S612: data storage and processing.
In the test process, receiving terminal calculates and stores each sampled point, the data of each sampled point storage include but not limited to: time T, coordinate figure (X, Y), the actual emission power Pta of emitter, the antenna gain Gta of emitter, the actual received power Pra of receiving system, the antenna gain Gra of receiving system, frequency F, bandwidth B, the path loss PL between transmitting and receiving a little, the distance B between transmitting and receiving a little.
Wherein on each sampled point, the computing formula that path loss data is handled:
PL＝Pta+Gta-Pra+Gra，
In the test process, data processing module is automatically according to the time delay between route and the transceiver, and (X Y), and to the distance B between the transmitting antenna, and stores memory module into to calculate and store the coordinate figure of every sampled point.
After the test stop button was clicked, data processing module is automatically according to path loss values PL and the distance B of each sampled point, and was right
Model is proofreaied and correct, and proofreaies and correct L (d0) and n value in the output model.
Step S614: data output.
Receiving system can carry out real-time ground physics and chemistry demonstration and numeral output to top the 6th step storage and all data of handling, as time T, the coordinate figure (X on each point, Y), the actual received power Pra of receiving system, path loss PL between transmitting and receiving a little, distance B tests between transmitting and receiving a little etc. if think that data are too many, also can selectively be exported.After test is finished, can also carry out playback to the data of test.
Preferred embodiment four
Present embodiment has offered the method that a kind of means for correcting that uses the indoor propagation model carries out the LTE wireless telecommunication system signal simulation test checking of indoor planning and designing.
In the present embodiment, supposed to design in the building communication system antenna of 4 FDD LTE, the desired value of design is that the value of indoor RSRP is greater than-90dBm, whether we need the indoor RSRP power of simplation verification to meet the demands, and count on test route, satisfy the percentage of this design objective requirement.The process of the model tuning in this basic process preferred embodiment three is similar substantially, and this method comprises the steps that S702 is to step S714.
Step S702: pattern setting:
(1) transmits and receives the pattern setting.
Setting wherein 4 devices is transmitter mode, and a device is receiver mode.Setting completed for pattern, and 5 devices are all clicked after the communication startup, and the communication streams between the transmitter and receiver just begins alternately, and receiver just can be inquired about the parameter state of each transmitter, and can control completely each transmitter.
(2) field intensity simulation or model tuning functional mode arrange.
Be arranged to the field intensity simulation model.
Step S704: the communication system parameter arranges:
Frequency F=2.6GHz, the bandwidth B=20M of the wireless communication system that needs simulation, the quantity N=4 of designing antenna are set, all designing antenna RS transmitting power Ptm=-13dBm, transmitter antenna gain (dBi) Gtm=0dBi, the antenna gain Grm=0dBi of the receiving terminal of design of communications system, design object value Pmin=-90dBm etc.
Step S706: the importing of plane graph and test route
With information input receivers such as the plane graph of building, test routes, and mark test starting point A and B, as shown in Figure 6.
Step S708: transmitting site is selected:
Choose the place LTEAntenna1 that carries out antenna arrangement at indoor needs, LTEAntenna2, LTEAntenna3, LTEAntenna4 is placed in corresponding height and position with emitter.
In the plane graph that in receiving system, imports, mark the location point of transmitting antenna, the transmitting antenna position store automatically and be recorded as (X1, Y1), (X2, Y2), (X3, Y3), (X4, Y4).
Step S710: validation test:
By receiving system, emitter is carried out the affirmation of pattern and parameter and revise.After the affirmation, open emitter by receiving system and carry out the emission of signal.
Hand receiving equipment, go to the starting point A of test route, click record button, carry out the test of school mould along test route.
Test is clicked stop button to route terminal point B.
Step S712: data storage and processing:
In the test process, receiving terminal calculates and stores each sampled point, the data of each sampled point storage include but not limited to: time T, coordinate figure (X, Y), the actual emission power Pta of emitter, the antenna gain Gta of emitter, the actual received power Pra of receiving system, the antenna gain Gra of receiving system, the transmitting power Ptm of design LTE communication system, transmitter antenna gain (dBi) Gtm, the received power Prm of receiving terminal, the antenna gain Grm of receiving terminal, frequency F, bandwidth B, path loss PL between transmitting and receiving a little, the distance B between transmitting and receiving a little.
Wherein on each sampled point, the computing formula that path loss data is handled:
PL＝Pta+Gta-Pra+Gra
In the test process, data processing module is automatically according to the time delay between route and the transceiver, and (X Y), and to the distance B between the transmitting antenna, and stores memory module into to calculate and store the coordinate figure of every sampled point.
For the LTE communication system of simplation verification, the rating formula of RSRP is as follows:
Prm＝Ptm+Gtm+Grm-PL。
For example: emitter actual emission power Pta=23dBm, in test process, certain point is gone up the actual received power Pra=-60dBm that test obtains receiving system, then path loss PL=23 dBm+0 dBi-(60)+0 dBi=83dB between 2.
The RS power of the design input aerial mouth of LTE is-13dBm, then in this test point, can simulate and obtain the RSRP value Prm=-13dBm+0 dBi+0 dBi-83dB=-96dBm that the LTE terminal receives, by the testing authentication of system, this point can't satisfy the design objective requirement of Pmin=-90dBm.
After the test stop button was clicked, data processing module provided the percentage greater than Pmin=-90dBm automatically according to the data of each sampled point.
Step S714: data output:
Receiving system can carry out real-time demonstration and output to top S712 step storage and the data of handling.So in test process, can directly utilize this equipment to judge that whether certain indoor position meets design requirement, and can adjust planning and designing in real time.
After test is finished, can also carry out playback to the data of test.
Preferred embodiment five
Present embodiment provides a kind of means for correcting with the indoor propagation model to be integrated into the example of testing in intelligent terminal and the mobile phone.This device is integrated when being designed in intelligent terminal and the mobile phone, on hardware designs, all modules can intelligent terminal and the corresponding module of mobile phone merge and integrated design, keep light profile and volume.
On concrete flow process and method, only need to increase by two steps: the unlatching of school mould function, closing of school mould function, be mainly used in common proper communication function and the school mould test function of switching terminal, the device of remaining method step and design separately is on all four, Fig. 8 is the flow chart that carries out the school modulo operation according to the school die device that is integrated into intelligent terminal and mobile phone of the embodiment of the invention, and as shown in Figure 8, this method comprises that S802 is to step S818.
Step S802: the unlatching of school mould function.
Step S804: pattern setting.
Step S806: model (system parameters) arranges.
Step S808: plane graph and test route import.
Step S810: transmitting site is selected.
Step S812: school mould (checking) test.
Step S814: data storage and processing.
Step S816: result's output.
Step S818: the closing of school mould function.
Need to prove that step S802 is the integrated first step newly-increased when being designed into intelligent terminal, step S804 is common school modulo operation flow chart to step S816, and step S818 is integrated final step newly-increased when being designed into intelligent terminal.
Pass through above-described embodiment, a kind of bearing calibration and device of indoor propagation model are provided, after the parameter that detects the signal that transmitter sends, use this parameter that indoor model is proofreaied and correct, realize the parameter that detection is obtained and used this parameter that the indoor propagation model is proofreaied and correct the realization that combines, overcome and adopted measuring and calculating and data separating to cause inefficiency in the correlation technique, need expend the problem of lot of manpower and material resources, and then reached the correction efficient that improves the indoor propagation model.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, carried out by calculation element thereby they can be stored in the storage device, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the bearing calibration of an indoor propagation model is characterized in that comprising:
Detect the parameter of the signal of transmitter transmission;
Use described parameter that the indoor propagation model is proofreaied and correct.
2. method according to claim 1 is characterized in that, the parameter that detects the signal of transmitter transmission comprises:
Obtain plane graph and the test route of building to be tested;
Detect the following parameter of the above test route up-sampling point of described plane graph: the path loss between the received power of described sampled point, described transmitter and the described sampled point and the distance of described transmitter and described sampled point.
3. method according to claim 2 is characterized in that, uses described path loss parameter that the indoor propagation model is proofreaied and correct and comprises:
Select the indoor propagation model of building correspondence to be detected;
According to the described received power of described sampled point, described path loss and described distance the parameter of described indoor propagation model is proofreaied and correct.
4. according to claim 2 or 3 described methods, it is characterized in that, also comprise: the Reference Signal Received Power RSRP that determines described sampled point according to the transmitting power of described parameter and described transmitter.
5. according to claim 2 or 3 described methods, it is characterized in that, also comprise: the data that described sampled point test is obtained show.
6. the means for correcting of an indoor propagation model is characterized in that comprising:
First detection module, the parameter of the signal that sends for detection of transmitter;
Correction module is used for using described parameter that the indoor propagation model is proofreaied and correct.
7. device according to claim 6 is characterized in that, described first detection module comprises:
Acquisition module is for the plane graph and the test route that obtain building to be tested;
Second detection module is for detection of the following parameter of the above test route up-sampling point of described plane graph: the path loss between the received power of described sampled point, described transmitter and the described sampled point and the distance of described transmitter and described sampled point.
8. device according to claim 7 is characterized in that, described correction module comprises:
Select module, be used for selecting the indoor propagation model of building correspondence to be detected;
Processing module is used for according to the described received power of described sampled point, described path loss and described distance the parameter of described indoor propagation model being proofreaied and correct.
9. according to claim 7 or 8 described devices, it is characterized in that, also comprise: determination module, for the Reference Signal Received Power RSRP that determines described sampled point according to the transmitting power of described parameter and described transmitter.
10. according to claim 7 or 8 described devices, it is characterized in that, also comprise: display module is used for the data that described sampled point test obtains are shown.
11. according to each described device in the claim 6 to 8, it is characterized in that the means for correcting of indoor propagation model disposes separately or is integrated on the portable terminal.
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