CN108990146A - Position acquisition methods, device and the computer equipment of net coverage distance - Google Patents
Position acquisition methods, device and the computer equipment of net coverage distance Download PDFInfo
- Publication number
- CN108990146A CN108990146A CN201710401308.0A CN201710401308A CN108990146A CN 108990146 A CN108990146 A CN 108990146A CN 201710401308 A CN201710401308 A CN 201710401308A CN 108990146 A CN108990146 A CN 108990146A
- Authority
- CN
- China
- Prior art keywords
- positioning
- signal
- positioning signal
- coverage distance
- loss value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
Abstract
The present invention relates to a kind of acquisition methods, device and computer equipments for positioning net coverage distance, by obtaining positioning scene parameter and signal characteristic parameter in positioning net；According to the positioning scene parameter and signal characteristic parameter, the free space loss value of positioning signal is obtained；The coverage distance of positioning signal is obtained according to the free space loss value, compared to the positioning net based on PRS is laid out in traditional technology by communication base station, the coverage distance of positioning signal is more acurrate under the special scenes that the present invention obtains, to keep locating base station deployment more reasonable, reduces lower deployment cost.
Description
Technical field
The present invention relates to the positioning field of cordless communication network, more particularly to positioning net coverage distance acquisition methods,
Device and computer equipment.
Background technique
With the development of wireless communication technique and the raising of data-handling capacity, location based service becomes and most develops
One of business of potentiality.No matter indoors or under outdoor environment, rapidly and accurately obtains location information and location-based service is provided
Demand become to be increasingly urgent to.Communication and two big systems of positioning mutually merge, mutually promote.Utilize wireless communication and parameter
It obtains and determines position, and location information can be used to support position business and optimization network management, improve location-based service quality
And network performance.So quickly, accurately, robustly obtaining the location technology of location information in a variety of different wireless networks
And its positioning system has become current research hotspot.
With the continuous growth of location-based service demand, location technology especially indoor positioning is more and more paid attention to.
International Organization for standardization 3GPP is promoting the project verification work of high-precision indoor positioning, is related to PRS-Beacon (i.e.
Positioning Reference Signal-Beacon, Chinese are meant: only send location reference signals beacon), OTDOA
(i.e. Observed Time Difference of Arrival, Chinese are meant: reaching time-difference positioning mode), ECID are (i.e.
Enhanced Cell-ID, Chinese are meant: enhanced base station centralized positioning method) etc. key technologies.Future is by patulous research model
It encloses, further investigation Ground Nuclear Magnetic Resonance positions net, including the technologies such as the planning of base station deployment, network element and path fitting.
In traditional technology, the positioning net based on PRS is usually laid out positioning net using communication base station.But it is logical utilizing
When believing station layout positioning net, there is a problem of that the coverage distance of positioning signal obtains inaccuracy.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of acquisition methods and device for positioning net coverage distance, it is intended to
Realize the coverage distance that positioning signal is accurately obtained in positioning net.
The technical solution adopted by the present invention is as follows:
A kind of acquisition methods positioning net coverage distance, which comprises
Obtain positioning scene parameter and signal characteristic parameter；
According to the positioning scene parameter and signal characteristic parameter, the free space loss value of positioning signal is obtained；
The coverage distance of positioning signal is obtained according to the free space loss value.
A kind of acquisition device positioning net coverage distance, described device include:
Parameter acquisition module, for obtaining positioning scene parameter and signal characteristic parameter；
Loss value obtains module, for obtaining positioning signal according to the positioning scene parameter and signal characteristic parameter
Free space loss value；
Coverage distance obtains module, for obtaining the coverage distance of positioning signal according to the free space loss value.
A kind of computer equipment, the computer equipment include memory, processor and are stored on the memory simultaneously
The computer program that can be run on the processor, wherein described in the processor is realized when executing the computer program
The step of method.
A kind of acquisition methods, device and computer equipment positioning net coverage distance provided by the invention, it is fixed by obtaining
Positioning scene parameter and signal characteristic parameter in the net of position；According to the positioning scene parameter and signal characteristic parameter, positioning is obtained
The free space loss value of signal；The coverage distance that positioning signal is obtained according to the free space loss value, compared to tradition
The positioning net based on PRS signal is laid out in technology by communication base station, positioning signal under the special scenes that the present invention obtains
Coverage distance is more acurrate, to keep locating base station deployment more reasonable, reduces lower deployment cost.
Detailed description of the invention
Fig. 1 is the flow chart of acquisition methods one embodiment of positioning net coverage distance provided by the invention；
Fig. 2 is the flow chart of one preferred embodiment of acquisition methods of positioning net coverage distance provided by the invention；
Fig. 3 is the first case scenario figure of the acquisition methods embodiment of positioning net coverage distance provided by the invention；
Fig. 4 is the second case scene figure of the acquisition methods embodiment of positioning net coverage distance provided by the invention；
Fig. 5 is the third case scenario figure of the acquisition methods embodiment of positioning net coverage distance provided by the invention；
Fig. 6 is acquisition device one embodiment program module architecture diagram of positioning net coverage distance provided by the invention；
Fig. 7 is the internal structure block diagram of computer equipment one embodiment of positioning net coverage distance provided by the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In positioning net, the deployment of locating base station needs to fully consider the covered distance of positioning signal institute and range, but
The covered distance of positioning signal institute and range, it is not only related with positioning signal itself power, also base is positioned by needing to dispose
The influence for the specific environment stood, therefore, the deployment of locating base station, needs to determine reasonable portion according to concrete scene demand in positioning net
Management side case could not only provide the positioning service of high quality, but also can reduce lower deployment cost, optimize positioning net, improve comprehensive effect
Benefit.
3GPP tissue sets up the project to PRS-Beacon technology, studies the positioning network technology based on PRS, the deployment of PRS positioning net
Need sufficiently to study the covered range of positioning signal institute under special scenes.
In traditional technology, positioning net is usually laid out using communication base station, but due to orientation distance and communication distance sheet
Be in matter it is distinguishing, using communication base station layout positioning net when, will exist locating base station deployment in positioning signal propagation
Distance obtains inaccuracy, and the deployment so as to cause locating base station in positioning net is unreasonable, further results in positioning net and does not reach
It optimizes, causes the waste of resource and lower deployment cost.
Specifically, for the realization of communication function, the acquisition of communication distance will ensure LTE (i.e. Long Term
Evolution, Chinese are meant: the long term evolution of universal mobile communications technology) each subcarriers signal of signal can be just
It often receives and demodulates, be modulated on each subcarrier due to sending data, and demodulated in receiving end, signal of communication covers
Lid distance depends on the propagation distance of each subcarriers, and note kth subcarriers communication propagation distance is dk, 1≤k≤N, N are
Subcarrier number, then signal of communication propagation distance may be expressed as: D in communication networkc=min (dk), it just can guarantee signal of communication just
Often receives and demodulate.
Different from the detection of signal of communication, positioning signal transmission is without demodulating signal, i.e., in most common time domain
In correlation detection, demodulated without docking the data that receipts signal carrier carries, as long as when relevant peaks are relative to noise power
Signal detection can be completed greater than a certain pre-determined threshold.Therefore the acquisition of orientation distance, has no need to ensure that each subcarriers all
It must normally receive, but general power is sufficiently large after guaranteeing subcarrier superposition, so that when doing signal coherent detection, it can be normal
Detect positioning signal, it is seen that under equal conditions, when doing signal detection by receiver, positioning signal propagation distance is remote
Much larger than the propagation distance of signal of communication.
Based on above-mentioned analysis, the present invention is based on the coverage distance acquisition of the positioning signal of accurate positioning net, one kind is provided
Position the acquisition methods of net coverage distance.
As shown in Figure 1, a kind of acquisition methods for positioning net coverage distance are provided in one of the embodiments, it is described
Method can be applied in the base station deployment of positioning net, the described method comprises the following steps:
S1, positioning scene parameter and signal characteristic parameter are obtained.
The positioning scene parameter refers to the scenario parameters that positioning signal is influenced in communication process, the signal characteristic
Parameter is the characteristic parameter of positioning signal.
Step S1 includes: in one of the embodiments,
S11, positioning scene parameter is obtained, the positioning scene parameter includes that channel of the positioning signal in communication process is made an uproar
Acoustical power, positioning signal detection threshold, all barrier path losses.
In the present embodiment, the positioning net is the positioning net based on PRS-Beacon technological maheup, and PRS-Beacon is only
Generate positioning signal PRS, no communication function, the generation of PRS signal include coding, modulation, IFFT inverse fast Fourier transform,
The processes such as FFT Fast Fourier Transform (FFT), demodulation and decoding.Assume that PRS-Beacon positioning net can cover interior in the present invention
Outside.
In the present embodiment, interchannel noise includes all possible chances such as man-made noise, natural noise and internal thermal noise
The noise arrived, the channel noise power refer to positioning signal the sum of all noise powers in communication process.
In the present embodiment, the positioning signal detection threshold is being able to carry out of receiving of receiver in specific bit net
The minimum signal power of detection and localization, i.e., the receiving end of receiver carries out coherent detection, can recognize that containing signal in positioning net
Correlation peak the smallest Signal to Interference plus Noise Ratio thresholding, the ingredient less than the Signal to Interference plus Noise Ratio thresholding is considered as noise, is greater than the letter
The dry ingredient made an uproar than thresholding is considered as signal.The coherent detection obtains positioning net coverage distance in specific bit net and provides position
The detection for the positioning signal that relevant device or object are carried out when service.Coherent detection minimum Signal to Interference plus Noise Ratio, with positioning signal one
A period internal symbol length is related, and a cycle internal symbol number is more, and the correlation of signal is better, minimum needed for coherent detection
Signal to Interference plus Noise Ratio is smaller.
The barrier includes but is not limited to following several: door, window, wall, tables and chairs and other office facilities etc., obstacle
Object path loss refers to and obtains the power loss of all kinds of barriers that positioning signal encounters in propagation path, for example, door, window, wall,
During each comfortable positioning signal propagation such as tables and chairs, when positioning signal penetrates the barrier, the function caused by positioning signal
Rate loss.
Specifically, it obtains and determines positioning scene parameter: including obtaining channel noise power Pn；Positioning signal detection
Minimum threshold T, the minimum threshold T increase with the symbol lengths in positioning signal a cycle, which reduces, and remember positioning signal
When symbolic number in a cycle is n, thresholding Tn；Antenna gain G, certain barrier that positioning signal propagation encounters in the process
Caused by path loss be denoted as L.
Wherein, antenna gain G refers to: under conditions of input power is equal, actual antennas and ideal radiating element exist
The ratio between the power density of signal caused by the same point of space, it quantitatively describes a day bundle of lines input power concentrated radiation
Degree.Antenna gain is for measuring antenna towards the ability of a specific direction receiving and transmitting signal, it is to select antenna for base station most
One of important parameter.The coverage area of network signal, Huo Zhe can be increased up in a determination side by increasing antenna gain
It determines and increases gain margin in range, increases the signal strength enhancing in range.Under the same conditions, gain is higher, and electric wave passes
The distance broadcast is remoter.Therefore, generally in the wireless network, can all use antenna gain, thus increase signal cover or
Enhance signal strength.
S12, obtain signal characteristic parameter, the signal characteristic parameter include the frequency domain resource of positioning signal, time-domain resource,
Each subcarriers power and antenna gain.
Wherein, the frequency domain resource and time-domain resource of positioning signal, in simple terms, in LTE, resource RE can regard one as
Two-dimensional plane, each RE can regard a lattice as.Resource is exactly the process of continuous transmission lattice in transmission process.
Wherein, the RE is (English i.e.: Resource Element): referring in frequency that a Symbol is (i.e. on a timely domain of subcarrier
Also Data Symbol, data symbol are), a referred to as RE.
Time domain is exactly abscissa, and continuous lattice ceaselessly transmits over time one by one, and frequency domain is exactly vertical
Coordinate, indicate at a time can the how many a lattices (namely bandwidth) of simultaneous transmission, RB (i.e. Resource Block, in
Text is meant: resource block): continuous 12 subcarriers in frequency, a Slot (Slot refers to time slot), referred to as 1 RB in time domain.
In the present embodiment, the frequency domain resource of the positioning signal refers to the frequency domain resource block number and time domain money of frequency
The symbolic number of the data symbol of source in one cycle.It is assumed that frequency domain resource block RB quantity occupied by positioning signal is m, son
Carrier number is 12m, each subcarriers power Pk, data symbols in symbolic number, that is, positioning signal a cycle of time-domain resource
Number symbolic number be n.
S2, according to the positioning scene parameter and signal characteristic parameter, obtain positioning signal in free-space propagation
Free space loss value.
The free space just refers to wave transmissions when surrounding is infinitely great vacuum, it is ideal propagation condition.Electric wave
In free-space propagation, energy will not both be absorbed by barrier, will not be reflected or be scattered, it is understood that are as follows: nothing is appointed
What is decayed, without any blocking, the communication space without any multipath.But in practice, wireless communication will be by various extraneous factors
Influence, be lost as caused by atmosphere, shelter, multipath etc., in this step, by taking perfect condition as an example.
The free space loss value refers to positioning signal in communication process in addition to barrier blocks loss, certainly
By the loss value of path loss part in spatial.It is freely empty since electromagnetic wave all can be lossy when penetrating any medium
Between loss describe the energy loss when electromagnetic wave of positioning signal is propagated in air.
In one embodiment, the step S2 includes:
S21, according to the positioning signal detection threshold and channel noise power, obtain what receiver in positioning net received
It is able to carry out the minimum signal power of detection and localization；
In one embodiment, the minimum signal function for being able to carry out detection and localization that receiver receives in positioning net is obtained
Rate obtains formula are as follows: Pr=TPn, formula (1)；
In formula (1), PrFor the minimum signal power for being able to carry out detection and localization that receiver in positioning net receives, T
For the minimum Signal to Interference plus Noise Ratio of coherent detection, PnChannel noise power when for the symbolic number in positioning signal a cycle being n,
T·PnIndicate T and PnProduct；
Specifically, when obtaining positioning signal coverage distance, remember that the minimum Signal to Interference plus Noise Ratio of coherent detection is T, noise power
For Pn, then what receiver received is able to carry out the minimum signal power of coherent detection are as follows: Pr=TPn。
S22, according to each subcarriers power, obtain the signal transmission power of positioning signal；
In one embodiment, according to each subcarriers transmission power of positioning signal, positioning signal transmission power is obtained,
Obtain formula are as follows:
In formula (2), PsFor positioning signal transmission power, PkFor kth subcarriers transmission power, m is frequency domain resource block
Number；
Herein, in another embodiment, positioning signal hair can also be obtained according to the frequency domain resource block number of positioning signal
Power is penetrated, i.e., is added the frequency domain resource block number of positioning signal, positioning signal transmission power is obtained.
S23, according between all barrier path losses, minimum signal power, signal transmission power and antenna gain
It is associated with sexual intercourse, obtains free space loss value of the positioning signal in free-space propagation.
In one embodiment, free space loss value of the positioning signal in free-space propagation is obtained, formula is obtained
Are as follows: PL=Ps+G-L0-Pr, formula (3)；
In formula (3), PL is free space loss value, and G is transmitter antenna gain (dBi), L0It is being propagated through for the positioning signal
The sum of all barrier path losses encountered in journey, PrFor the minimum signal power.
Specifically, remember that the received signal power is Pr, barrier path loss when the described positioning signal propagation
The sum of be L0, then the path loss surplus of positioning signal, i.e. positioning signal can table in the path loss part of free space
It is shown as:
PL=Ps+G-L0-Pr。
Wherein, the sum of barrier path loss refers to according to all barrier path losses, during obtaining positioning signal propagation
The sum of all barrier path losses.
In the present embodiment, the sum of described barrier path loss, specific bit signal penetrate all kinds of barriers in communication process
The sum of energy loss caused by when blocking, the barrier include but is not limited to following material: windowpane (2-4dB), concrete
Wall (13-18dB), plaster board wall (3-5dB), metal board house (12-15dB), timber (3-5dB) etc., use L0Indicate barrier road
The sum of damage, uses L1、L2、L3..., indicate each barrier path loss that positioning signal encounters in communication process, then L0=L1+L2+
L3+…。
S3, the coverage distance that positioning signal is obtained according to the free space loss value.
In one embodiment, the step S3 includes: freely empty according to the free space loss value and positioning signal
Between relationship between loss value formula, obtain the coverage distance of positioning signal.
The coverage distance of the positioning signal refers to that the propagation distance for obtaining positioning signal in positioning net is specifically
Specific bit signal blocks loss and is transmitted to receiving end by antenna gain, free space decline, barrier, and can receiving end with
The farthest propagation distance of relevant peaks where local template signal effectively detects it by time domain correlation, therefore, it is fixed to obtain
The propagation distance of position signal will pass through following procedure:
1) the sum of barrier path loss is obtained；
2) free space loss value is obtained；
3) antenna gain is obtained；
4) positioning signal propagation distance is obtained.
In one embodiment, described according to the free space loss value and positioning signal free space loss value formula
Between relationship, the step of obtaining the coverage distance of positioning signal includes: according to positioning signal free space loss value formula: PL
=32.44+20logd+20logf, formula (4), the free space loss value obtained in the embodiment in conjunction with step S2, export are fixed
The acquisition formula of position signal propagation distance are as follows:
PL is free space loss value in formula (4)；
In formula (4) and formula (5), d is the propagation distance of positioning signal, and f is positioning signal working frequency, the positioning
Signal propagation distance is the coverage distance of positioning signal, namely the coverage distance of positioning net.
Wherein, the free space loss value formula refers to that free space loss describes electromagnetic wave and propagates in air
When energy loss, it is a set formula that electromagnetic wave all can be lossy when penetrating any medium, and original free is empty
Between formula is lost: space loss=20lg (F)+20lg (D)+32.44；F is frequency, unit: MHz；D is distance, unit: Km.
When specifically used, different models can choose according to different scenes and use, but all without departing from this prime formula, this reality
It applies and takes original calculation formula in example.
In one embodiment, for the coverage distance that more accurately determining positioning is netted, the step S3 further include:
It is averaged according to the propagation distance of positioning signal at least twice, obtains the average coverage distance of positioning signal.
Referring to Fig. 2, in one embodiment, obtain positioning signal propagation apart from when, in order to make the positioning obtained letter
Number propagation distance is further more acurrate, takes and takes multiple signal propagation distance average value, that is, take positioning signal average propagation away from
From come the coverage distance that determines positioning signal, for example, when obtaining positioning signal coverage distance, take j positioning signal propagation away from
From acquisition average value, then position net in positioning signal coverage distance acquisition formula are as follows:
In formula (6),For j positioning signal average propagation distance, diThe positioning signal propagation distance obtained for i-th.
In one embodiment, described according to the free space loss value and positioning signal free space loss value formula
Between relationship, after the step of obtaining the coverage distance of positioning signal further include: according to the coverage distance of the positioning signal
Form the scheme of base station deployment in positioning net.
According to the coverage distance of the positioning signal of acquisition positioning signal under some special scenes, locating base station is formed at this
Deployment scheme under special scenes, in the concrete scene should where dispose between locating base station, base station respectively away from
How far away deployment forms positioning net, can ensure that smoothly detecting for positioning signal, to provide the positioning service of high quality, and energy
Lower deployment cost is saved, to improve comprehensive benefit.
Further, the scheme of base station deployment in positioning net can also be formed according to the average coverage distance.
In order to clearer understand above scheme, the above method is described with the specific situation of different scenes below: (one),
Signal is propagated clear and is blocked.
As shown in figure 3, positioning scene is outdoor, clear is blocked between locating base station and terminal, positioning signal PRS
Downlink location reference signals, it is n that PRS sends symbol lengths every time1, detection and localization thresholding isWorking frequency is f1, sub- load
Wave transmission power isNumber of resource blocks is m1, antenna gain G1, channel noise power isThen its positioning signal covering away from
It is as follows from acquisition process:
(1) during positioning signal propagation, clear is blocked, and barrier path loss is L0=0；
(2) minimum signal power of detection and localization isSignal transmission power isObtain letter
Number free space loss value:
(3) then the coverage distance of positioning signal propagation may be expressed as:
It repeats (1), (2), (3) process j times, obtaining the propagation average distance of positioning signal in this scenario indicates are as follows:
(2), there are a fan timbers to block for signal propagation.
As shown in figure 4, positioning scene is interior, there are a fan timbers to stop between base station and terminal, and signal penetrates timber
Subsequent resume is broadcast, and timber path loss is L1, positioning signal is PRS downlink location reference signals, and it is n that PRS sends symbol lengths every time2,
Its detection and localization thresholding is that the thresholding of detection and localization isWorking frequency is f2, subcarrier transmitting power isNumber of resource blocks
For m2, antenna gain G2, channel noise power isThen its positioning signal propagation is as follows apart from acquisition process:
(1) signal propagation penetrates timber, and L is lost1, the sum of path loss is L0=L1；
(2) minimum signal power of detection and localization isSignal transmission power isIt is fixed to obtain
The free space loss value of position signal:
(3) coverage distance of positioning signal propagation may be expressed as:
It repeats (1), (2), (3) process j times, obtaining the covering average distance of positioning signal in this scenario indicates are as follows:
(3), there are a fan timbers and a face wall to block for signal propagation.
As shown in figure 5, positioning scene is interior, there are a fan timber and face concrete walls resistances between base station and terminal
Gear, signal penetrate subsequent resume and broadcast, and timber path loss is L1, concrete walls path loss is L2, positioning signal is the positioning reference of PRS downlink
Signal, it is n that PRS sends symbol lengths every time3, detection and localization thresholding is that the thresholding of detection and localization isWorking frequency is f3,
Subcarrier transmitting power isNumber of resource blocks is m3, antenna gain G3, channel noise power isThen its positioning signal is covered
It covers as follows apart from acquisition process:
(1) signal propagation penetrates timber loss L1, penetrating concrete walls loss is L2, the sum of path loss is L0=L1+L2；
(2) minimum signal power of detection and localization isSignal transmission power isObtain letter
Number free space loss value:
(3) coverage distance of positioning signal propagation may be expressed as:
It repeats (1), (2), (3) process j times, obtaining out the covering average distance of positioning signal in this scenario indicates are as follows:
From the foregoing, it will be observed that a kind of acquisition methods for positioning net coverage distance provided by the invention, by obtaining positioning scene ginseng
Several and signal characteristic parameter；According to the positioning scene parameter and signal characteristic parameter, the free space damage of positioning signal is obtained
Consumption value；The coverage distance that positioning signal is obtained according to the free space loss value carries out signal detection using time domain correlation, leads to
The design feature and the good correlation of PRS signal using positioning signal are crossed, the positioning signal received and local template are believed
Number correlation is done, according to the minimum signal-to-noise ratio that positioning signal detects, find out and receive signal minimum power, further according to transmitting signal function
The sum of rate, barrier path loss and antenna gain calculate free space loss value, obtain the coverage distance of positioning signal, compared to
The positioning net based on PRS technology is laid out by communication base station in the prior art, technical solution of the present invention can be realized positioning
The accurate acquisition of net coverage distance reduces lower deployment cost to keep locating base station deployment more reasonable, improves comprehensive benefit.
As shown in fig. 6, in one embodiment it is proposed that a kind of acquisition device for positioning net coverage distance, described device
Include:
Parameter acquisition module 10, for obtaining positioning scene parameter and signal characteristic parameter；
In the present embodiment, the positioning scene parameter and signal characteristic parameter are according to specific positioning scene and demand by technology
Personnel setting, the equipment for being inputted by the input equipment connecting with terminal or being connect from the network interface with terminal are read, by
The central processing unit of terminal is obtained and stored in memory；
Loss value obtains module 20, for obtaining positioning signal according to the positioning scene parameter and signal characteristic parameter
Free space loss value；
In the present embodiment, the free space loss value is by the central processing unit of terminal according to the positioning scene parameter of acquisition
And signal characteristic parameter is obtained by calculating, and is mainly calculated and is obtained by preset program；
Coverage distance obtains module 30, for obtaining the coverage distance of positioning signal according to the free space loss value；
In the present embodiment, the coverage distance is by the central processing unit of terminal according to the free space loss value for calculating acquisition
Relationship, calculating between positioning signal free space loss value formula are obtained and are shown by the display unit of terminal,
Further, positioning scene parameter and signal characteristic parameter that this coverage distance is related to by display unit also one can also be passed through
And it shows.
In one embodiment, the parameter acquisition module 10 includes:
First obtains module, and for obtaining positioning scene parameter, the positioning scene parameter includes that positioning signal is being propagated
Channel noise power, positioning signal detection threshold, all barrier path losses in the process；
Second obtains module, and for obtaining signal characteristic parameter, the signal characteristic parameter includes the frequency domain of positioning signal
Resource, time-domain resource, each subcarriers power and antenna gain.
In one embodiment, the loss value acquisition module 20 includes:
Minimum signal power acquiring unit obtains positioning according to the positioning signal detection threshold and channel noise power
What receiver received is able to carry out the minimum signal power of detection and localization in net；
Signal transmission power acquiring unit, for obtaining positioning signal according to each subcarriers transmission power
Signal transmission power；
Space loss value acquiring unit, for emitting function according to all barrier path losses, minimum signal power, signal
Association sexual intercourse between rate and antenna gain obtains free space loss value of the positioning signal in free-space propagation.
In one embodiment, the coverage distance obtains module 30 further include:
It is averaged according to the coverage distance of positioning signal at least twice, obtains the average coverage distance of positioning signal.
In the present embodiment, the calculating of average value is calculated by the central processing unit of terminal and is obtained, the positioning signal of calculating
The calculated result of coverage distance and average coverage distance can be shown by the display unit of terminal.
In one embodiment, the present invention also provides a kind of computer equipments, referring to Fig. 7, the computer equipment packet
It includes memory, processor and is stored in the computer program that can be run on the memory and on the processor, the place
The step of reason device realizes the method when executing the computer program.
In conclusion a kind of acquisition methods, device and computer equipment for positioning net coverage distance provided by the invention, leads to
Cross acquisition positioning scene parameter and signal characteristic parameter；According to the positioning scene parameter and signal characteristic parameter, positioning is obtained
The free space loss value of signal；The coverage distance of positioning signal is obtained according to the free space loss value.The present invention provides
Positioning net base station deployment in positioning signal coverage distance acquisition methods and device, can be realized positioning net in positioning signal cover
The accurate acquisition of lid distance keeps locating base station deployment more reasonable, optimizes positioning net, to reduce lower deployment cost, improves comprehensive
Close benefit.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, described program can be stored in a computer-readable storage medium
In, in the embodiment of the present invention, which be can be stored in the storage medium of computer system, and by the computer system
At least one processor executes, and includes the process such as the embodiment of above-mentioned each method with realization.Wherein, the storage medium can be
Magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of acquisition methods for positioning net coverage distance, which is characterized in that the described method includes:
Obtain positioning scene parameter and signal characteristic parameter；
According to the positioning scene parameter and signal characteristic parameter, the free space loss value of positioning signal is obtained；
The coverage distance of positioning signal is obtained according to the free space loss value.
2. the method according to claim 1, wherein positioning scene parameter and the signal characteristic parameter of obtaining
Step includes:
Obtain positioning scene parameter, the positioning scene parameter include channel noise power of the positioning signal in communication process,
Positioning signal detection threshold, all barrier path losses；
Signal characteristic parameter is obtained, the signal characteristic parameter includes the frequency domain resource, time-domain resource, each way of positioning signal
Carrier power and antenna gain.
3. according to the method described in claim 2, it is characterized in that, described join according to the positioning scene parameter and signal characteristic
Number, the step of obtaining the free space loss value of positioning signal include:
According to the positioning signal detection threshold and channel noise power, what receiver received in acquisition positioning net is able to carry out
The minimum signal power of detection and localization；
According to each subcarriers power, the signal transmission power of positioning signal is obtained；
It is closed according to the relevance between all barrier path losses, minimum signal power, signal transmission power and antenna gain
System obtains free space loss value of the positioning signal in free-space propagation.
4. the method according to claim 1, wherein described obtain positioning letter according to the free space loss value
Number coverage distance the step of include:
According to the relationship between the free space loss value and positioning signal free space loss value formula, positioning signal is obtained
Coverage distance.
5. the method according to claim 1, wherein described obtain positioning letter according to the free space loss value
Number coverage distance the step of further include:
It is averaged according to the coverage distance of positioning signal at least twice, obtains the average coverage distance of positioning signal.
6. a kind of acquisition device for positioning net coverage distance, which is characterized in that described device includes:
Parameter acquisition module, for obtaining positioning scene parameter and signal characteristic parameter；
Loss value obtains module, for obtaining the freedom of positioning signal according to the positioning scene parameter and signal characteristic parameter
Space loss value；
Coverage distance obtains module, for obtaining the coverage distance of positioning signal according to the free space loss value.
7. device according to claim 6, which is characterized in that the parameter acquisition module includes:
First obtains module, and for obtaining positioning scene parameter, the positioning scene parameter includes positioning signal in communication process
In channel noise power, positioning signal detection threshold, all barrier path losses；
Second obtains module, for obtaining signal characteristic parameter, the signal characteristic parameter include positioning signal frequency domain resource,
Time-domain resource, each subcarriers power and antenna gain.
8. device according to claim 7, which is characterized in that the loss value obtains module and includes:
Minimum signal power acquiring unit, for obtaining positioning according to the positioning signal detection threshold and channel noise power
What receiver received is able to carry out the minimum signal power of detection and localization in net；
Signal transmission power acquiring unit, for obtaining the signal transmitting of positioning signal according to each subcarriers power
Power；
Space loss value acquiring unit, for according to all barrier path losses, minimum signal power, signal transmission power and
Association sexual intercourse between antenna gain obtains free space loss value of the positioning signal in free-space propagation.
9. device according to claim 6, which is characterized in that the coverage distance obtains module further include: according at least
The coverage distance of positioning signal is averaged twice, obtains the average coverage distance of positioning signal.
10. a kind of computer equipment, the computer equipment includes memory, processor and is stored on the memory and can
The computer program run on the processor, which is characterized in that the processor is realized when executing the computer program
The step of any one of claim 1-5 the method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401308.0A CN108990146B (en) | 2017-05-31 | 2017-05-31 | Method and device for acquiring coverage distance of positioning network and computer equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710401308.0A CN108990146B (en) | 2017-05-31 | 2017-05-31 | Method and device for acquiring coverage distance of positioning network and computer equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108990146A true CN108990146A (en) | 2018-12-11 |
| CN108990146B CN108990146B (en) | 2021-03-16 |
Family
ID=64501447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710401308.0A Active CN108990146B (en) | 2017-05-31 | 2017-05-31 | Method and device for acquiring coverage distance of positioning network and computer equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108990146B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112929812A (en) * | 2021-01-23 | 2021-06-08 | 东莞理工学院 | Indoor positioning method considering Bluetooth co-frequency interference |
| CN113115219A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Coverage distance determination method and device |
| CN113115221A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Method, device and equipment for determining coverage distance and storage medium |
| CN113115220A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Coverage distance determination method and device and storage medium |
| CN113115218A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Method and device for determining coverage capability and storage medium |
| WO2021213072A1 (en) * | 2020-04-24 | 2021-10-28 | 中兴通讯股份有限公司 | Networking signal sending method and apparatus for positioning network |
| WO2021259067A1 (en) * | 2020-06-22 | 2021-12-30 | 中兴通讯股份有限公司 | Positioning method and apparatus, and computer-readable storage medium |
| CN114531364A (en) * | 2022-01-04 | 2022-05-24 | 四川天邑康和通信股份有限公司 | Router antenna management system |
| WO2024026795A1 (en) * | 2022-08-04 | 2024-02-08 | 北京小米移动软件有限公司 | Method for sending sidelink (sl) positioning reference signal (prs), and apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102017737A (en) * | 2007-08-24 | 2011-04-13 | 北方电讯网络有限公司 | Power control at a relay station in a wireless network |
| CN102098782A (en) * | 2011-03-22 | 2011-06-15 | 无锡智感星际科技有限公司 | Frequency modulation (FM) broadcast-based terminal positioning method and special positioning device |
| US20130023285A1 (en) * | 2005-12-15 | 2013-01-24 | Felix Markhovsky | Multi-Path Mitigation in Rangefinding and Tracking Objects Using Reduced Attenuation RF Technology |
| CN103650594A (en) * | 2011-05-06 | 2014-03-19 | 瑞典爱立信有限公司 | Methods and nodes supporting cell change |
| CN104462670A (en) * | 2014-11-24 | 2015-03-25 | 成都盛军电子设备有限公司 | Equipment performance evaluation system |
| CN106324585A (en) * | 2016-09-19 | 2017-01-11 | 裴庆祺 | Positioning method and positioning system based on signal emitting device antenna direction correction |
-
2017
- 2017-05-31 CN CN201710401308.0A patent/CN108990146B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130023285A1 (en) * | 2005-12-15 | 2013-01-24 | Felix Markhovsky | Multi-Path Mitigation in Rangefinding and Tracking Objects Using Reduced Attenuation RF Technology |
| CN102017737A (en) * | 2007-08-24 | 2011-04-13 | 北方电讯网络有限公司 | Power control at a relay station in a wireless network |
| CN102098782A (en) * | 2011-03-22 | 2011-06-15 | 无锡智感星际科技有限公司 | Frequency modulation (FM) broadcast-based terminal positioning method and special positioning device |
| CN103650594A (en) * | 2011-05-06 | 2014-03-19 | 瑞典爱立信有限公司 | Methods and nodes supporting cell change |
| CN104462670A (en) * | 2014-11-24 | 2015-03-25 | 成都盛军电子设备有限公司 | Equipment performance evaluation system |
| CN106324585A (en) * | 2016-09-19 | 2017-01-11 | 裴庆祺 | Positioning method and positioning system based on signal emitting device antenna direction correction |
Non-Patent Citations (1)
| Title |
|---|
| ERICSSON: "Modeling Considerations for the High-Rise Scenario", 《3GPP TSG RAN WG1 MEETING #76》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021213072A1 (en) * | 2020-04-24 | 2021-10-28 | 中兴通讯股份有限公司 | Networking signal sending method and apparatus for positioning network |
| WO2021259067A1 (en) * | 2020-06-22 | 2021-12-30 | 中兴通讯股份有限公司 | Positioning method and apparatus, and computer-readable storage medium |
| CN112929812B (en) * | 2021-01-23 | 2022-07-29 | 东莞理工学院 | Indoor positioning method considering Bluetooth co-frequency interference |
| CN112929812A (en) * | 2021-01-23 | 2021-06-08 | 东莞理工学院 | Indoor positioning method considering Bluetooth co-frequency interference |
| CN113115220A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Coverage distance determination method and device and storage medium |
| CN113115218A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Method and device for determining coverage capability and storage medium |
| CN113115221A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Method, device and equipment for determining coverage distance and storage medium |
| CN113115219A (en) * | 2021-03-16 | 2021-07-13 | 中国联合网络通信集团有限公司 | Coverage distance determination method and device |
| CN113115218B (en) * | 2021-03-16 | 2022-07-12 | 中国联合网络通信集团有限公司 | Method and device for determining coverage capability and storage medium |
| CN113115221B (en) * | 2021-03-16 | 2022-09-02 | 中国联合网络通信集团有限公司 | Method, device and equipment for determining coverage distance and storage medium |
| CN114531364A (en) * | 2022-01-04 | 2022-05-24 | 四川天邑康和通信股份有限公司 | Router antenna management system |
| CN114531364B (en) * | 2022-01-04 | 2023-12-15 | 四川天邑康和通信股份有限公司 | Router antenna management system |
| WO2024026795A1 (en) * | 2022-08-04 | 2024-02-08 | 北京小米移动软件有限公司 | Method for sending sidelink (sl) positioning reference signal (prs), and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108990146B (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108990146A (en) | Position acquisition methods, device and the computer equipment of net coverage distance | |
| US7773995B2 (en) | Method and apparatus for utilizing RF signals to create a site specific representation of an environment | |
| CN101772156B (en) | Positioning method and positioning device of WLAN (wireless local area network) | |
| CN103209415B (en) | Full duplex disturbs treating method and apparatus | |
| Bultitude et al. | IST-4-027756 WINNER II D1. 1.2 V1. 2 WINNER II Channel Models | |
| CN102421189A (en) | Physical-layer-based method and device for realizing indoor positioning of wireless network | |
| CN107623925A (en) | A kind of indoor wifi signal detecting methods and system based on floor plan | |
| TW201101884A (en) | Methods and systems for selecting a handover base station in mobile WiMAX | |
| CN109922480B (en) | Processing beamformed Radio Frequency (RF) signals | |
| Zhang | Review of wideband MIMO channel measurement and modeling for IMT-Advanced systems | |
| Han et al. | Enhancing wireless performance using reflectors | |
| Ramezani et al. | Collision tolerant and collision free packet scheduling for underwater acoustic localization | |
| CN109076555A (en) | interference detection method, device and storage medium | |
| CN104283629A (en) | Channel safety transmission method | |
| Chen et al. | Providing spectrum information service using TV white space via distributed detection system | |
| Machaj et al. | Impact of optimization algorithms on hybrid indoor positioning based on GSM and Wi‐Fi signals | |
| Jeong et al. | Joint TOA/AOA-based localization in wireless sensor networks | |
| Koivumäki et al. | Wave scatterer localization in outdoor-to-indoor channels at 4 and 14 GHz | |
| Tian et al. | MIMO CSI-based super-resolution AoA estimation for Wi-Fi indoor localization | |
| Keawbunsong et al. | Quantitative measurement of path loss model adaptation using the least squares method in an urban DVB-T2 system | |
| Neri et al. | DOA and TOA based localization services protocol in IEEE 802.11 networks | |
| Xu et al. | A high-performance measure for non-line-of-sight identification in MIMO-OFDM-based sensor networks | |
| Zhu et al. | Ranging code design for UAV swarm self-positioning in green aerial IoT | |
| CN109076597A (en) | Data transmission method, device and the storage medium of FBE | |
| US11290947B2 (en) | Device and method for analyzing service availability in wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |