CN109429333A - A kind of localization method and base station - Google Patents
A kind of localization method and base station Download PDFInfo
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- CN109429333A CN109429333A CN201710755010.XA CN201710755010A CN109429333A CN 109429333 A CN109429333 A CN 109429333A CN 201710755010 A CN201710755010 A CN 201710755010A CN 109429333 A CN109429333 A CN 109429333A
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- base station
- user terminal
- relative distance
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- terminal equipment
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- 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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
Abstract
This application discloses a kind of localization method and base station, the relative distance between direction of signal and base station and user terminal that passes through determining user terminal of receiving and sending messages between user terminal including base station；Base station is using direction of signal as center line, and the signal of internet-of-things terminal equipment is searched in transmitting within the scope of preset launch angle；Base station receives the signal that internet-of-things terminal equipment returns, and the difference that the relative distance that the relative distance between base station is greater than or equal between base station and user terminal subtracts the first preset value is recorded, and the relative distance being less than or equal between base station and user terminal is plus the internet-of-things terminal equipment of the sum of the second preset value；Location information of the base station according to the internet-of-things terminal equipment of record, calculates the location information of user terminal and calculated location information is sent to user terminal.The present invention by base station lookups to internet-of-things terminal equipment user terminal is positioned, do not need user terminal prepackage GPS chip, reduce the cost of user terminal.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of localization method and base stations.
Background technique
Traditional map positioning separates voice and location information, and user needs map and voice to toggle, and operation is tedious,
For example, existing terminal can carry out positioning and by screenshot capture to Correspondent Node by traditional maps such as Baidu, Googles, thus with
Correspondent Node sharing position information, but which can not realize position information share during voice；Existing terminal can also
Location information is sent to Correspondent Node, still with the position sharing functionality by certain applications (APP) software (such as wechat etc.)
Voice and positioning are mutually indepedent under which, can not synchronize, and there are time delays when voice and positioning switch in turn, and operate superfluous
It is remaining, while which needs terminal by global positioning system (Global Positioning System, GPS) satellite positioning
GPS chip is pre-installed, cost is larger.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of localization method and base stations, can reduce user terminal
Cost.
In order to reach the object of the invention, the technical solution of the embodiment of the present invention is achieved in that
The embodiment of the invention provides a kind of localization methods, comprising:
Base station is whole by the direction of signal for determining user terminal of receiving and sending messages between user terminal and base station and user
Relative distance between end；
Base station is using the direction of signal as center line, and internet-of-things terminal is searched in transmitting within the scope of preset launch angle
The signal of equipment；
Base station receives the signal that internet-of-things terminal equipment returns, and the relative distance recorded between base station is greater than or equal to
Relative distance between base station and user terminal subtracts the difference of the first preset value, and is less than or equal between base station and user terminal
Relative distance plus the second preset value sum internet-of-things terminal equipment；
Location information of the base station according to the internet-of-things terminal equipment of record calculates the location information of user terminal and will calculate
Location information out is sent to user terminal.
Further, the base station determines the relative distance between base station and user terminal, specifically includes:
The base station sends measurement pilot configuration information to the user terminal, provides in the measurement pilot configuration information
The user terminal sends the transmission power of measurement pilot tone；
The base station receives the measurement pilot tone that the user terminal is sent, and calculates the transmission loss of the user terminal；
The base station calculates the relative distance between the base station and the user terminal by following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is
Megahertz；Lg is to accord with 10 for the logarithm operation of the truth of a matter.
Further, the relative distance between the base station record and base station is greater than or equal between base station and user terminal
Relative distance subtract the difference of the first preset value, and the relative distance being less than or equal between base station and user terminal adds second
The internet-of-things terminal equipment of the sum of preset value, specifically includes:
The reception power and the internet-of-things terminal for the signal that the base station is returned according to the internet-of-things terminal equipment
The transmission loss of the transmission power calculation internet-of-things terminal equipment carried in the signal that equipment returns；
The base station calculates the relative distance between the base station and the internet-of-things terminal equipment according to following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is
Megahertz；Lg is to accord with 10 for the logarithm operation of the truth of a matter；
The base station is determined and recorded according to the relative distance between calculated base station and internet-of-things terminal equipment and base
The relative distance that relative distance between standing is greater than or equal between base station and user terminal subtracts the difference of the first preset value, and small
In or equal to relative distance between base station and user terminal plus the sum of the second preset value internet-of-things terminal equipment.
Further, the value range of the preset launch angle is between 3 ° to 15 °.
Further, the method that the base station calculates the location information of user terminal are as follows:
Obtain longitude, latitude and the elevation information of all internet-of-things terminal equipment found；
The longitude average value, latitude average value and height for calculating all internet-of-things terminal equipment found are average
Value, using calculated longitude average value, latitude average value and height average as the location information of the user terminal.
Further, the method also includes:
Whether the user terminal is in voice call process, on current display screen, provide and need to carry out position positioning
Prompt；
If necessary to carry out position positioning, the user terminal obtains the position of itself and voice opposite end from the base station side
Information calculates the relative distance between user terminal and voice opposite end, and on current display screen, show the user terminal and
Voice opposite end respective positions information and relative distance.
The embodiment of the invention also provides a kind of base stations, including apart from determining module, searching module, position computation module and
Sending module, in which:
Apart from determining module, for by determining user terminal of receiving and sending messages between user terminal direction of signal and
Relative distance between base station and user terminal exports the relative distance between the direction of signal and base station and user terminal
To searching module；
Searching module is used for using the direction of signal as center line, and is emitted within the scope of preset launch angle and searched
The signal of internet-of-things terminal equipment receives the signal that internet-of-things terminal equipment returns, and records the relative distance between base station
More than or equal to the difference that the relative distance between base station and user terminal subtracts the first preset value, and it is less than or equal to base station and use
Relative distance between the terminal of family adds the internet-of-things terminal equipment of the sum of the second preset value, by the internet-of-things terminal equipment of record
Location information export to position computation module；
Position computation module, the location information for receiving and according to the internet-of-things terminal equipment found, calculates user
The location information of terminal simultaneously exports calculated location information to sending module；
Sending module, for receiving the location information of calculated user terminal and being sent to user terminal.
Further, the determination base station apart from determining module and the relative distance between user terminal, comprising:
Measurement pilot configuration information is sent to the user terminal, provides the user in the measurement pilot configuration information
Terminal sends the transmission power of measurement pilot tone, receives the measurement pilot tone that the user terminal is sent, calculates the transmission of user terminal
Loss；
The relative distance between the base station and the user terminal is calculated by following formula:
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is
Megahertz；Lg is to accord with 10 for the logarithm operation of the truth of a matter.
Further, the relative distance between the record and base station of the searching module is greater than or equal to base station and user is whole
Relative distance between end subtracts the difference of the first preset value, and the relative distance being less than or equal between base station and user terminal adds
The internet-of-things terminal equipment of the sum of upper second preset value, comprising:
The reception power of the signal returned according to the internet-of-things terminal equipment and the internet-of-things terminal equipment return
Signal in the transmission loss of transmission power calculation internet-of-things terminal equipment that carries；
The relative distance between the base station and the internet-of-things terminal equipment is calculated according to following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is
Megahertz；Lg is to accord with 10 for the logarithm operation of the truth of a matter；
It is determined and recorded between base station according to the relative distance between calculated base station and internet-of-things terminal equipment
The relative distance that relative distance is greater than or equal between base station and user terminal subtracts the difference of the first preset value, and is less than or equal to
Relative distance between base station and user terminal adds the internet-of-things terminal equipment of the sum of the second preset value.
Further, the value range of the preset launch angle is between 3 ° to 15 °.
Technical solution of the present invention has the following beneficial effects:
Localization method provided by the invention and base station pass through the location information meter for the internet-of-things terminal equipment that base station lookups arrive
Calculate user terminal location information, do not need user terminal prepackage GPS chip positioning can be realized, reduce user terminal at
This；
Further, the present invention is positioned by voice call process trigger position, is realized and is visualized position in communication process
Confidence breath timely updates.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow diagram of localization method of first embodiment of the invention；
Fig. 2 is a kind of flow diagram of localization method of second embodiment of the invention；
Fig. 3 is a kind of structural schematic diagram of base station of the embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of user terminal of the embodiment of the present invention；
Fig. 5 is a kind of flow diagram of localization method of the preferred embodiment of the present invention；
Fig. 6 is the structural schematic diagram in the annular sector region of base station building in the localization method of the preferred embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
As shown in Figure 1, a kind of localization method according to the present invention, includes the following steps:
Step 101: direction of signal and base station of the base station by determining user terminal of receiving and sending messages between user terminal
Relative distance between user terminal；
Further, the base station determines the relative distance between base station and user terminal, specifically includes:
Base station sends measurement pilot configuration information to user terminal, provides user terminal in the measurement pilot configuration information
Send the transmission power of measurement pilot tone；
Base station receives the measurement pilot tone that user terminal is sent, and calculates transmission loss (the Loss Of of user terminal
Signal, LOS)；
Base station passes through the relative distance of formula (1) between calculation base station and user terminal:
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km (km)；F is working frequency, single
Position is megahertz (MHz)；Lg is to accord with 10 for the logarithm operation of the truth of a matter.
It should be noted that carrying the transmission function that user terminal sends the measurement pilot tone in the measurement pilot configuration information
Rate, base station is according to the transmission of the transmission power calculation user terminal for receiving power and user terminal of the measurement pilot tone received
Loss.
Step 102: base station is using the direction of signal as center line, and object is searched in transmitting within the scope of preset launch angle
The signal of networked terminals equipment；
Further, the value range of the preset launch angle is between 3 ° to 15 °.
It should be noted that internet-of-things terminal equipment of the present invention can be for based on cellular narrowband Internet of Things
Terminal device in (Narrow Band Internet of Things, NB-IoT), or in LoRa or other networks
Internet-of-things terminal equipment.
Step 103: base station receives the signal that internet-of-things terminal equipment returns, and the relative distance recorded between base station is big
The difference of the first preset value is subtracted in or equal to relative distance between base station and user terminal, and is less than or equal to base station and user
Relative distance between terminal adds the internet-of-things terminal equipment of the sum of the second preset value；
Further, the value model of relative distance * N3%, N3 of first preset value between base station and user terminal
It is trapped among between 1 to 5.
Further, the value model of relative distance * N4%, N4 of second preset value between base station and user terminal
It is trapped among between 1 to 5.
Further, the relative distance between the base station record and base station is greater than or equal between base station and user terminal
Relative distance subtract the difference of the first preset value, and the relative distance being less than or equal between base station and user terminal adds second
The internet-of-things terminal equipment of the sum of preset value, specifically includes:
The reception power and the internet-of-things terminal for the signal that the base station is returned according to the internet-of-things terminal equipment
The transmission loss of the transmission power calculation internet-of-things terminal equipment carried in the signal that equipment returns；
The base station calculates the relative distance between the base station and the internet-of-things terminal equipment according to following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is
Megahertz；Lg is to accord with 10 for the logarithm operation of the truth of a matter；
The base station is determined and recorded according to the relative distance between calculated base station and internet-of-things terminal equipment and base
The relative distance that relative distance between standing is greater than or equal between base station and user terminal subtracts the difference of the first preset value, and small
In or equal to relative distance between base station and user terminal plus the sum of the second preset value internet-of-things terminal equipment.
Step 104: location information of the base station according to the internet-of-things terminal equipment of record calculates the location information of user terminal
And calculated location information is sent to user terminal.
It should be noted that the location information of the internet-of-things terminal equipment can be carried in the internet-of-things terminal equipment
In the signal of return, it can also be stored in advance in the base station.
Further, the method that the base station calculates the location information of user terminal are as follows:
Obtain longitude, latitude and the elevation information of all internet-of-things terminal equipment found；
Longitude average value, latitude average value and the height average of all internet-of-things terminal equipment found are calculated, it will
Calculated longitude average value, the location information of latitude average value and height average as user terminal.
As shown in Fig. 2, the invention also discloses a kind of localization methods, comprising:
Whether step 201: user terminal is in voice call process, on current display screen, provide and need to carry out position
The prompt of positioning；
Step 202: if necessary to carry out position positioning, the user terminal obtains itself and Correspondent Node from base station side
Location information calculates the relative distance of user terminal and Correspondent Node, and on current display screen, shows itself and Correspondent Node
Respective positions information and relative distance.
Further, after the localization method further include: on current display screen, provide what various trip modes needed
Time.
As shown in figure 3, a kind of base station according to the present invention, including counted apart from determining module 301, searching module 302, position
Calculate module 303 and sending module 304, in which:
Apart from determining module 301, for the direction of signal by determining user terminal of receiving and sending messages between user terminal
And the relative distance between base station and user terminal, by the relative distance between the direction of signal and base station and user terminal
It exports to searching module 302；
Searching module 302 is used for using the direction of signal as center line, and emits within the scope of preset launch angle and look into
Look for the signal of internet-of-things terminal equipment, receive the signal that internet-of-things terminal equipment returns, and record between base station it is opposite away from
Subtract the difference of the first preset value from relative distance between base station and user terminal is greater than or equal to, and be less than or equal to base station and
Relative distance between user terminal adds the internet-of-things terminal equipment of the sum of the second preset value, and the internet-of-things terminal of record is set
Standby location information is exported to position computation module 303；
Position computation module 303, the location information of the internet-of-things terminal equipment for receiving the output of searching module 302, according to
It exports according to the location information of the positional information calculation user terminal of internet-of-things terminal equipment, and by calculated location information to hair
Send module 304；
Sending module 304, for receiving calculated location information and being sent to user terminal.
Further, the determination base station apart from determining module 301 and the relative distance between user terminal, comprising:
Measurement pilot configuration information is sent to user terminal, and receives the measurement pilot tone of user terminal transmission, calculates user
The transmission loss of terminal；
Pass through relative distance of the formula (1) between calculation base station and user terminal:
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is
Megahertz.
Further, the value range of the preset launch angle is between 3 ° to 15 °.
Further, the value model of relative distance * N3%, N3 of first preset value between base station and user terminal
It is trapped among between 1 to 5.
Further, the value model of relative distance * N4%, N4 of second preset value between base station and user terminal
It is trapped among between 1 to 5.
It should be noted that internet-of-things terminal equipment of the present invention can be for based on cellular narrowband Internet of Things
Terminal device in (Narrow Band Internet of Things, NB-IoT), or in LoRa or other networks
Internet-of-things terminal equipment.
Further, the relative distance between the record and base station of the searching module 302 is greater than or equal to base station and use
Relative distance between the terminal of family subtracts the difference of the first preset value, and be less than or equal between base station and user terminal it is opposite away from
Internet-of-things terminal equipment from the sum plus the second preset value, comprising:
The reception power of the signal returned according to the internet-of-things terminal equipment and the internet-of-things terminal equipment return
Signal in the transmission loss of transmission power calculation internet-of-things terminal equipment that carries；
The relative distance between the base station and the internet-of-things terminal equipment is calculated according to following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is
Megahertz；Lg is to accord with 10 for the logarithm operation of the truth of a matter；
It is determined and recorded between base station according to the relative distance between calculated base station and internet-of-things terminal equipment
The relative distance that relative distance is greater than or equal between base station and user terminal subtracts the difference of the first preset value, and is less than or equal to
Relative distance between base station and user terminal adds the internet-of-things terminal equipment of the sum of the second preset value.
It should be noted that the location information of the internet-of-things terminal equipment can be carried in the internet-of-things terminal equipment
In the signal of return, it can also be stored in advance in the base station.
Further, the method for the location information of the calculating user terminal of the position computation module 303 are as follows:
Obtain longitude, latitude and the elevation information of all internet-of-things terminal equipment found；
Longitude average value, latitude average value and the height average of all internet-of-things terminal equipment found are calculated, it will
Calculated longitude average value, the location information of latitude average value and height average as user terminal.
As shown in figure 4, the invention also discloses a kind of user terminal, including display module 401 and acquisition module 402,
In:
Display module 401 provides whether to need to carry out position fixed in voice call process on current display screen
The prompt of position；The location information and relative distance for obtaining user terminal and Correspondent Node that module 402 exports are received, is shown currently
In display screen, user terminal and Correspondent Node respective positions information and relative distance are shown；
Module 402 is obtained, for obtaining user terminal and Correspondent Node from base station side if necessary to carry out position positioning
Location information, calculate user terminal and Correspondent Node relative distance, and by the location information of user terminal and Correspondent Node with
Relative distance is exported to display module 401.
Further, the display module 401 is also used to: on current display screen, providing what various trip modes needed
Time.
Below by way of a preferred embodiment, illustrate how using localization method of the invention and base station.It is noticeable
It is that preferred embodiment below is intended merely to preferably describe the present invention, does not constitute and the present invention is improperly limited.
When user initiates speech message or voice communication, is provided on current display screen and whether need to carry out position positioning
Prompt obtains the location information of user terminal and Correspondent Node from base station side if necessary to carry out position positioning, and it is whole to calculate user
The relative distance at end and Correspondent Node, and on a display screen, show itself and Correspondent Node respective positions information with respect to away from
From, and can calculate and show and such as ride, the various arrival routes of walking, and according to user's travel speed, road of advising
Line mutually understands position each other so as to real-time and Correspondent Node, reduces mutual distance perception as far as possible.
As shown in figure 5, the localization method in this preferred embodiment comprises the following specific steps that:
Step 501: user initiates voice dialogue, the position location functionality of the voice dialogue triggering user terminal；
Step 502: user terminal obtains the location information of itself, the letter that base station is sent according to user terminal to base station application
The direction of signal for determining user terminal is ceased, and determines the relative distance between base station and user terminal；
Step 503: base station is using direction of signal as center line deviation N1 degree to the left, deviation N2 degree to the right, with base station and user
Relative distance between terminal is the first radius to upper deviation N3%, and downward deviation N4% is that the second radius constructs annular sector area
Domain (constructed annular sector region is as shown in Figure 6), searches the internet-of-things terminal equipment (End in the annular sector region
Nodes), wherein N1, N2, N3 and N4 are all larger than or are equal to 0；
Step 504: location information of the base station according to the internet-of-things terminal equipment found calculates the position letter of user terminal
It ceases and calculated location information is sent to user terminal；
Step 505: user terminal obtains location information, and realizes that real-time phonetic is shared with position with voice dialogue side.
As shown in fig. 6, base station is according to user sources direction, after user sends a signal to base station with the straight line between user
For middle line, it is offset to both sides smaller angle transmitting signal respectively, deviating latter two edge line angle is (N1+N2) °, coverage area
For fan-shaped circular arc, radius sends the signal dough softening to base station with user and calculates, it is assumed for example that user emits signal to base station, signal
The dough softening is 20%, and to prevent all angles, there are barrier differences to cause signal decaying different, base station with fan-shaped region to
When family emits signal, when the dough softening about 20%, the annular sector region that fan-shaped circular arc closes on is obtained, annular sector region includes more
A internet-of-things terminal equipment for closing on user terminal, and the location information of each internet-of-things terminal equipment being laid in advance is it is known that logical
The multiple internet-of-things terminal equipment crossed in annular sector region, which are done, closes on calculating acquisition user terminal more specific location information.
Arc radius region, ideal situation where the application calculates user terminal according to wireless communication distance transmission principle
Under, in free-space propagation, energy will not both be absorbed electric wave by barrier, will not generate reflection or scattering.
[Los] (dB)=32.44+20lgd (km)+20lgf (MHz)
Los is transmission loss, unit dB in formula；D is transmission range, and unit is Km；F is working frequency, and unit is
MHz.By above formula as it can be seen that radio wave propagation loss (also known as decaying) is only related with working frequency f and transmission range d in free space,
When f or d increasing is twice, Los will increase separately 6dB.
It is following to illustrate, it is assumed that working frequency f is 433.92MHz, and transmission power is 10dBm (10mW), is received sensitive
Degree is -105dBm,
Then transmission loss is Los=115dB under maximum communication distance, substitutes into formula and obtains:
115dBm=32.44+20lg d (Km)+20lg f (MHz)
115=32.44+20lg d+52.75
20lg d=29.81
Lg d=1.4905
d≈30.9Km
This is transmission range ideally, can be passed due to generations such as atmosphere, obstacles in actual signal transmission process
Defeated loss, it is assumed that by the generations such as atmosphere, obstacle transmission loss be 25dB, substitute into above-mentioned formula transmission distance can be calculated
From (i.e. relative distance) are as follows: d=1.7 km.
After arc radius confirmation where user, considers that different angle signal decaying affected by environment is different, can select herein
The internet-of-things terminal equipment closed on is found in radius small range section, radius can take 1.6-1.8 km herein, can obtain figure
Annular sector region shown in 6 closes on average computation to the location information of the region internet-of-things terminal equipment, obtains user terminal
Location information.
Consider different angle signal difference affected by environment, is raised position locating accuracy, can allow user terminal pair
Multiple base station transceiver signals are closed on, are calculated subject to acquisition more by close on internet-of-things terminal equipment of multiple base stations to user terminal
True customer position information.In addition, the display interface of user terminal can be changed to sound when user terminal does not need to position in real time
State picture, clock interface etc..
Herein described technical solution can be used for the terminal devices such as various smart phone, the wrist-watch bracelets for supporting voice.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware is completed, and described program can store in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, one or more integrated circuits also can be used to realize, accordingly in all or part of the steps of above-described embodiment
Ground, each module/unit in above-described embodiment can take the form of hardware realization, can also use the shape of software function module
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of localization method characterized by comprising
Base station by the direction of signal for determining user terminal of receiving and sending messages between user terminal and base station and user terminal it
Between relative distance；
Base station is using the direction of signal as center line, and internet-of-things terminal equipment is searched in transmitting within the scope of preset launch angle
Signal；
Base station receives the signal that internet-of-things terminal equipment returns, and records the relative distance between base station and be greater than or equal to base station
Relative distance between user terminal subtracts the difference of the first preset value, and the phase being less than or equal between base station and user terminal
The internet-of-things terminal equipment adjusted the distance plus the sum of the second preset value；
Location information of the base station according to the internet-of-things terminal equipment of record, calculates the location information of user terminal and will be calculated
Location information is sent to user terminal.
2. localization method according to claim 1, which is characterized in that the base station determines between base station and user terminal
Relative distance specifically includes:
The base station sends measurement pilot configuration information to the user terminal, in the measurement pilot configuration information described in regulation
User terminal sends the transmission power of measurement pilot tone；
The base station receives the measurement pilot tone that the user terminal is sent, and calculates the transmission loss of the user terminal；
The base station calculates the relative distance between the base station and the user terminal by following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is megahertz
Hereby；Lg is to accord with 10 for the logarithm operation of the truth of a matter.
3. localization method according to claim 1, which is characterized in that the relative distance between the base station record and base station
More than or equal to the difference that the relative distance between base station and user terminal subtracts the first preset value, and it is less than or equal to base station and use
Relative distance between the terminal of family adds the internet-of-things terminal equipment of the sum of the second preset value, specifically includes:
The reception power for the signal that the base station is returned according to the internet-of-things terminal equipment and the internet-of-things terminal equipment
The transmission loss of the transmission power calculation internet-of-things terminal equipment carried in the signal of return；
The base station calculates the relative distance between the base station and the internet-of-things terminal equipment according to following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is megahertz
Hereby；Lg is to accord with 10 for the logarithm operation of the truth of a matter；
The base station according to the relative distance between calculated base station and internet-of-things terminal equipment determine and record with base station it
Between relative distance be greater than or equal to relative distance between base station and user terminal and subtract the difference of the first preset value, and be less than or
Equal to the relative distance between base station and user terminal plus the internet-of-things terminal equipment of the sum of the second preset value.
4. localization method according to claim 1, which is characterized in that the value range of the preset launch angle is 3 °
To between 15 °.
5. localization method according to claim 1, which is characterized in that the base station calculates the location information of user terminal
Method are as follows:
Obtain longitude, latitude and the elevation information of all internet-of-things terminal equipment found；
Longitude average value, latitude average value and the height average of all internet-of-things terminal equipment found are calculated, it will
Calculated longitude average value, the location information of latitude average value and height average as the user terminal.
6. localization method according to claim 1, which is characterized in that the method also includes:
The user terminal is in voice call process, on current display screen, provides and whether needs to carry out mentioning for position positioning
Show；
If necessary to carry out position positioning, the user terminal is believed from the position that the base station side obtains itself and voice opposite end
Breath calculates the relative distance between user terminal and voice opposite end, and on current display screen, shows the user terminal and language
Sound opposite end respective positions information and relative distance.
7. a kind of base station, which is characterized in that including apart from determining module, searching module, position computation module and sending module,
In:
Apart from determining module, for by determining user terminal of receiving and sending messages between user terminal direction of signal and base station
Relative distance between user terminal exports the relative distance between the direction of signal and base station and user terminal to looking into
Look for module；
Searching module is used for using the direction of signal as center line, and Internet of Things are searched in transmitting within the scope of preset launch angle
The signal of network termination equipment receives the signal that internet-of-things terminal equipment returns, and the relative distance recorded between base station is greater than
Or the difference of the first preset value is subtracted equal to the relative distance between base station and user terminal, and be less than or equal to base station and user's end
Relative distance between end adds the internet-of-things terminal equipment of the sum of the second preset value, by the position of the internet-of-things terminal equipment of record
Confidence breath is exported to position computation module；
Position computation module, the location information for receiving and according to the internet-of-things terminal equipment found, calculates user terminal
Location information and calculated location information is exported to sending module；
Sending module, for receiving the location information of calculated user terminal and being sent to user terminal.
8. base station according to claim 7, which is characterized in that the determination base station and user terminal apart from determining module
Between relative distance, comprising:
Measurement pilot configuration information is sent to the user terminal, provides the user terminal in the measurement pilot configuration information
The transmission power for sending measurement pilot tone receives the measurement pilot tone that the user terminal is sent, calculates the transmission loss of user terminal；
The relative distance between the base station and the user terminal is calculated by following formula:
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is megahertz
Hereby；Lg is to accord with 10 for the logarithm operation of the truth of a matter.
9. base station according to claim 7, which is characterized in that between the record and base station of the searching module it is opposite away from
Subtract the difference of the first preset value from relative distance between base station and user terminal is greater than or equal to, and be less than or equal to base station and
Relative distance between user terminal adds the internet-of-things terminal equipment of the sum of the second preset value, comprising:
The letter for receiving power and internet-of-things terminal equipment return of the signal returned according to the internet-of-things terminal equipment
The transmission loss of the transmission power calculation internet-of-things terminal equipment carried in number；
The relative distance between the base station and the internet-of-things terminal equipment is calculated according to following formula；
LOS=32.44+20lgd+20lgf (1)；
Wherein, LOS is transmission loss, unit dB；D is relative distance, and unit is km；F is working frequency, and unit is megahertz
Hereby；Lg is to accord with 10 for the logarithm operation of the truth of a matter；
It is determined and recorded according to the relative distance between calculated base station and internet-of-things terminal equipment opposite between base station
The relative distance that distance is greater than or equal between base station and user terminal subtracts the difference of the first preset value, and is less than or equal to base station
Relative distance between user terminal adds the internet-of-things terminal equipment of the sum of the second preset value.
10. base station according to claim 7, which is characterized in that the value range of the preset launch angle be 3 ° extremely
Between 15 °.
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| CN201710755010.XA CN109429333B (en) | 2017-08-29 | 2017-08-29 | Positioning method and base station |
| PCT/CN2018/102563 WO2019042259A1 (en) | 2017-08-29 | 2018-08-27 | Positioning method and base station |
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| CN109429333B (en) | 2021-04-20 |
| WO2019042259A1 (en) | 2019-03-07 |
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