CN109429333B - Positioning method and base station - Google Patents
Positioning method and base station Download PDFInfo
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- CN109429333B CN109429333B CN201710755010.XA CN201710755010A CN109429333B CN 109429333 B CN109429333 B CN 109429333B CN 201710755010 A CN201710755010 A CN 201710755010A CN 109429333 B CN109429333 B CN 109429333B
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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
The application discloses a positioning method and a base station, comprising the steps that the base station receives and sends information with a user terminal to determine the signal coming direction of the user terminal and the relative distance between the base station and the user terminal; the base station transmits a signal for searching the terminal equipment of the Internet of things within a preset transmitting angle range by taking the signal incoming direction as a central line; the base station receives a signal returned by the terminal equipment of the Internet of things, and records the terminal equipment of the Internet of things, wherein the relative distance between the terminal equipment of the Internet of things and the base station is greater than or equal to the difference obtained by subtracting a first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and a second preset value; and the base station calculates the position information of the user terminal according to the recorded position information of the terminal equipment of the Internet of things and sends the calculated position information to the user terminal. According to the invention, the user terminal is positioned by the Internet of things terminal equipment searched by the base station, a GPS chip is not required to be pre-installed on the user terminal, and the cost of the user terminal is reduced.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a positioning method and a base station.
Background
For example, the existing terminal can perform positioning through the traditional maps such as Baidu map and Google map and send a screenshot to the opposite communication terminal, so that the position information can be shared with the opposite communication terminal, but the position information can not be shared in the voice process; the existing terminal can also send Positioning information to a communication opposite terminal through a position sharing function of certain Application (APP) software (such as WeChat and the like), but in the mode, voice and Positioning are independent of each other and cannot be synchronized, time delay exists during voice and Positioning alternate switching, operation redundancy exists, and meanwhile, the mode needs a terminal to be pre-installed with a GPS chip by means of Global Positioning System (GPS) satellite Positioning, and the cost is high.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides a positioning method and a base station, which can reduce the cost of a user terminal.
In order to achieve the purpose of the invention, the technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides a positioning method, which comprises the following steps:
the base station receives and sends information with the user terminal to determine the signal direction of the user terminal and the relative distance between the base station and the user terminal;
the base station takes the signal incoming direction as a central line and transmits a signal for searching the terminal equipment of the Internet of things in a preset transmitting angle range;
the base station receives a signal returned by the terminal equipment of the Internet of things, and records the terminal equipment of the Internet of things, wherein the relative distance between the terminal equipment of the Internet of things and the base station is greater than or equal to the difference obtained by subtracting a first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and a second preset value;
and the base station calculates the position information of the user terminal according to the recorded position information of the terminal equipment of the Internet of things and sends the calculated position information to the user terminal.
Further, the determining, by the base station, a relative distance between the base station and the user equipment specifically includes:
the base station sends measurement pilot frequency configuration information to the user terminal, wherein the measurement pilot frequency configuration information specifies the sending power of the measurement pilot frequency sent by the user terminal;
the base station receives the measurement pilot frequency sent by the user terminal and calculates the transmission loss of the user terminal;
the base station calculates the relative distance between the base station and the user terminal through the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is the base 10 logarithm operator.
Further, the internet of things terminal device in which the relative distance between the base station record and the base station is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value specifically includes:
the base station calculates the transmission loss of the terminal equipment of the Internet of things according to the receiving power of the signal returned by the terminal equipment of the Internet of things and the sending power carried in the signal returned by the terminal equipment of the Internet of things;
the base station calculates the relative distance between the base station and the terminal equipment of the Internet of things according to the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is a logarithmic operator with 10 as a base number;
and the base station determines and records the terminal equipment of the Internet of things, wherein the relative distance between the base station and the terminal equipment of the Internet of things is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value.
Further, the preset emission angle ranges from 3 ° to 15 °.
Further, the method for the base station to calculate the location information of the user terminal comprises:
acquiring longitude, latitude and altitude information of all the searched terminal equipment of the Internet of things;
and calculating the longitude average value, the latitude average value and the altitude average value of all the found terminal equipment of the Internet of things, and taking the calculated longitude average value, latitude average value and altitude average value as the position information of the user terminal.
Further, the method further comprises:
the user terminal gives a prompt whether position positioning is needed or not on a current display screen in the voice communication process;
if the position positioning is needed, the user terminal obtains the position information of the user terminal and the voice opposite terminal from the base station side, calculates the relative distance between the user terminal and the voice opposite terminal, and displays the position information and the relative distance of the user terminal and the voice opposite terminal on the current display screen.
The embodiment of the invention also provides a base station, which comprises a distance determining module, a searching module, a position calculating module and a sending module, wherein:
the distance determining module is used for determining the signal direction of the user terminal and the relative distance between the base station and the user terminal by receiving and transmitting information between the distance determining module and the user terminal, and outputting the signal direction and the relative distance between the base station and the user terminal to the searching module;
the searching module is used for transmitting a signal for searching the terminal equipment of the Internet of things within a preset transmitting angle range by taking the incoming direction of the signal as a central line, receiving the signal returned by the terminal equipment of the Internet of things, recording the terminal equipment of the Internet of things, wherein the relative distance between the terminal equipment of the Internet of things and the base station is greater than or equal to the difference obtained by subtracting a first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum obtained by adding a second preset value to the relative distance between the base station and the user terminal, and outputting the recorded position information of the terminal equipment of the Internet of things;
the position calculation module is used for receiving and calculating the position information of the user terminal according to the searched position information of the terminal equipment of the Internet of things and outputting the calculated position information to the sending module;
and the sending module is used for receiving the calculated position information of the user terminal and sending the position information to the user terminal.
Further, the determining the relative distance between the base station and the user terminal by the distance determining module includes:
sending measurement pilot frequency configuration information to the user terminal, wherein the measurement pilot frequency configuration information specifies the sending power of the measurement pilot frequency sent by the user terminal, receiving the measurement pilot frequency sent by the user terminal, and calculating the transmission loss of the user terminal;
calculating a relative distance between the base station and the user terminal by the following formula:
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is the base 10 logarithm operator.
Further, the internet of things terminal device, in which the relative distance between the record of the search module and the base station is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value, includes:
calculating the transmission loss of the terminal equipment of the Internet of things according to the receiving power of the signal returned by the terminal equipment of the Internet of things and the sending power carried in the signal returned by the terminal equipment of the Internet of things;
calculating the relative distance between the base station and the terminal equipment of the Internet of things according to the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is a logarithmic operator with 10 as a base number;
and determining and recording the terminal equipment of the internet of things, wherein the relative distance between the terminal equipment of the internet of things and the base station is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value.
Further, the preset emission angle ranges from 3 ° to 15 °.
The technical scheme of the invention has the following beneficial effects:
according to the positioning method and the base station, the position information of the user terminal is calculated through the position information of the terminal equipment of the Internet of things searched by the base station, positioning can be realized without the need of pre-installing a GPS chip on the user terminal, and the cost of the user terminal is reduced;
furthermore, the invention triggers position location through the voice communication process, thereby realizing the timely update of the visual position information in the communication process.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic flowchart of a positioning method according to a first embodiment of the present invention;
fig. 2 is a flowchart illustrating a positioning method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a user terminal according to an embodiment of the present invention;
FIG. 5 is a flow chart illustrating a positioning method according to a preferred embodiment of the present invention;
fig. 6 is a schematic structural diagram of an annular sector area constructed by a base station in a positioning method according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
As shown in fig. 1, a positioning method according to the present invention includes the steps of:
step 101: the base station receives and sends information with the user terminal to determine the signal direction of the user terminal and the relative distance between the base station and the user terminal;
further, the determining, by the base station, a relative distance between the base station and the user equipment specifically includes:
a base station sends measurement pilot frequency configuration information to a user terminal, wherein the measurement pilot frequency configuration information specifies the sending power of the measurement pilot frequency sent by the user terminal;
a base station receives a measurement pilot frequency sent by a user terminal and calculates the transmission Loss (LOS Of Signal, LOS) Of the user terminal;
the base station calculates the relative distance between the base station and the user terminal by equation (1):
LOS＝32.44+20lgd+20lgf(1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers (km); f is the working frequency in megahertz (MHz); lg is the base 10 logarithm operator.
It should be noted that the measurement pilot configuration information carries the transmit power of the measurement pilot sent by the user terminal, and the base station calculates the transmission loss of the user terminal according to the received receive power of the measurement pilot and the transmit power of the user terminal.
Step 102: the base station takes the signal incoming direction as a central line and transmits a signal for searching the terminal equipment of the Internet of things in a preset transmitting angle range;
further, the preset emission angle ranges from 3 ° to 15 °.
It should be noted that the Internet of Things terminal device described in the present invention may be a terminal device in a Narrow-Band Internet of Things (NB-IoT) based on cellular, and may also be an Internet of Things terminal device in LoRa or other networks.
Step 103: the base station receives a signal returned by the terminal equipment of the Internet of things, and records the terminal equipment of the Internet of things, wherein the relative distance between the terminal equipment of the Internet of things and the base station is greater than or equal to the difference obtained by subtracting a first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and a second preset value;
further, the first preset value is a relative distance N3% between the base station and the ue, and a value range of N3 is between 1 and 5.
Further, the second preset value is a relative distance N4% between the base station and the ue, and a value range of N4 is between 1 and 5.
Further, the internet of things terminal device in which the relative distance between the base station record and the base station is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value specifically includes:
the base station calculates the transmission loss of the terminal equipment of the Internet of things according to the receiving power of the signal returned by the terminal equipment of the Internet of things and the sending power carried in the signal returned by the terminal equipment of the Internet of things;
the base station calculates the relative distance between the base station and the terminal equipment of the Internet of things according to the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is a logarithmic operator with 10 as a base number;
and the base station determines and records the terminal equipment of the Internet of things, wherein the relative distance between the base station and the terminal equipment of the Internet of things is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value.
Step 104: and the base station calculates the position information of the user terminal according to the recorded position information of the terminal equipment of the Internet of things and sends the calculated position information to the user terminal.
It should be noted that the location information of the terminal device of the internet of things may be carried in a signal returned by the terminal device of the internet of things, or may be pre-stored in the base station.
Further, the method for the base station to calculate the location information of the user terminal comprises:
acquiring longitude, latitude and altitude information of all searched terminal equipment of the Internet of things;
and calculating the longitude average value, the latitude average value and the altitude average value of all the searched terminal equipment of the Internet of things, and taking the calculated longitude average value, latitude average value and altitude average value as the position information of the user terminal.
As shown in fig. 2, the present invention also discloses a positioning method, including:
step 201: a user terminal gives a prompt whether position positioning is needed or not on a current display screen in the voice communication process;
step 202: if the position positioning is needed, the user terminal obtains the position information of the user terminal and the communication opposite terminal from the base station side, calculates the relative distance between the user terminal and the communication opposite terminal, and displays the position information and the relative distance of the user terminal and the communication opposite terminal on the current display screen.
Further, the positioning method further comprises the following steps: and providing time required by various travel modes on the current display screen.
As shown in fig. 3, a base station according to the present invention includes a distance determining module 301, a searching module 302, a position calculating module 303, and a transmitting module 304, wherein:
a distance determining module 301, configured to determine an incoming direction of a signal of a ue and a relative distance between a base station and the ue by receiving and sending information with the ue, and output the incoming direction of the signal and the relative distance between the base station and the ue to a searching module 302;
the searching module 302 is configured to use the signal incoming direction as a center line, transmit a signal for searching for the internet of things terminal device within a preset transmission angle range, receive a signal returned by the internet of things terminal device, record the internet of things terminal device whose relative distance from the base station is greater than or equal to the difference between the relative distance between the base station and the user terminal and the subtraction of the first preset value, and which is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value, and output the recorded position information of the internet of things terminal device to the position calculating module 303;
the location calculating module 303 is configured to receive the location information of the internet of things terminal device output by the searching module 302, calculate the location information of the user terminal according to the location information of the internet of things terminal device, and output the calculated location information to the sending module 304;
and a sending module 304, configured to receive the calculated location information and send the location information to a user terminal.
Further, the determining the relative distance between the base station and the user terminal by the distance determining module 301 includes:
sending measurement pilot frequency configuration information to a user terminal, receiving the measurement pilot frequency sent by the user terminal, and calculating the transmission loss of the user terminal;
calculating a relative distance between the base station and the user terminal by equation (1):
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency in megahertz.
Further, the preset emission angle ranges from 3 ° to 15 °.
Further, the first preset value is a relative distance N3% between the base station and the ue, and a value range of N3 is between 1 and 5.
Further, the second preset value is a relative distance N4% between the base station and the ue, and a value range of N4 is between 1 and 5.
It should be noted that the Internet of Things terminal device described in the present invention may be a terminal device in a Narrow-Band Internet of Things (NB-IoT) based on cellular, and may also be an Internet of Things terminal device in LoRa or other networks.
Further, the internet of things terminal device, in which the relative distance between the record of the search module 302 and the base station is greater than or equal to the difference between the relative distance between the base station and the user terminal minus the first preset value, and is less than or equal to the sum of the relative distance between the base station and the user terminal plus the second preset value, includes:
calculating the transmission loss of the terminal equipment of the Internet of things according to the receiving power of the signal returned by the terminal equipment of the Internet of things and the sending power carried in the signal returned by the terminal equipment of the Internet of things;
calculating the relative distance between the base station and the terminal equipment of the Internet of things according to the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is a logarithmic operator with 10 as a base number;
and determining and recording the terminal equipment of the internet of things, wherein the relative distance between the terminal equipment of the internet of things and the base station is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value.
It should be noted that the location information of the terminal device of the internet of things may be carried in a signal returned by the terminal device of the internet of things, or may be pre-stored in the base station.
Further, the method for calculating the location information of the user terminal by the location calculation module 303 is as follows:
acquiring longitude, latitude and altitude information of all searched terminal equipment of the Internet of things;
and calculating the longitude average value, the latitude average value and the altitude average value of all the searched terminal equipment of the Internet of things, and taking the calculated longitude average value, latitude average value and altitude average value as the position information of the user terminal.
As shown in fig. 4, the present invention also discloses a user terminal, which includes a display module 401 and an obtaining module 402, wherein:
the display module 401 is configured to give a prompt on a current display screen whether position location is required or not in a voice call process; receiving the position information and the relative distance of the user terminal and the communication opposite terminal output by the obtaining module 402, and displaying the respective position information and the relative distance of the user terminal and the communication opposite terminal on the current display screen;
an obtaining module 402, configured to obtain location information of the user terminal and the communication peer from the base station side if location positioning is required, calculate a relative distance between the user terminal and the communication peer, and output the location information and the relative distance between the user terminal and the communication peer to the display module 401.
Further, the display module 401 is further configured to: and providing time required by various travel modes on the current display screen.
The following describes how to apply the positioning method and the base station of the present invention by a preferred embodiment. It should be noted that the following preferred embodiments are only for better describing the present invention and should not be construed as unduly limiting the present invention.
When a user initiates a voice message or voice call, a prompt indicating whether position positioning is needed or not is given on a current display screen, if the position positioning is needed, position information of a user terminal and a communication opposite terminal is obtained from a base station side, the relative distance between the user terminal and the communication opposite terminal is calculated, the position information and the relative distance of the user terminal and the communication opposite terminal are displayed on the display screen, various arriving routes such as riding, walking and the like can be calculated and displayed, and a suggested route is provided according to the driving speed of the user, so that the positions of the communication opposite terminals and the user can be known mutually in real time, and the distance feeling between the communication opposite terminals and the user can be reduced as much as possible.
As shown in fig. 5, the positioning method in the preferred embodiment includes the following specific steps:
step 501: a user initiates a voice conversation, and the voice conversation triggers a position positioning function of a user terminal;
step 502: the user terminal applies for obtaining self position information to the base station, the base station determines the signal direction of the user terminal according to the information sent by the user terminal, and determines the relative distance between the base station and the user terminal;
step 503: the base station uses the signal coming direction as a central line to deviate by N1 degrees leftwards and N2 degrees rightwards, uses the upward deviation N3% of the relative distance between the base station and the user terminal as a first radius, uses the downward deviation N4% as a second radius to construct a ring-shaped sector area (the constructed ring-shaped sector area is shown in FIG. 6), and searches for the terminal equipment (End Nodes) of the internet of things in the ring-shaped sector area, wherein N1, N2, N3 and N4 are all larger than or equal to 0;
step 504: the base station calculates the position information of the user terminal according to the searched position information of the terminal equipment of the Internet of things and sends the calculated position information to the user terminal;
step 505: and the user terminal acquires the position information and realizes instant voice and position sharing with the voice conversation party.
As shown in fig. 6, after the user sends the signal to the base station, the base station respectively shifts to two sides by a small angle according to the direction of the user source and taking the straight line between the base station and the user as the center line, the included angle between the two edge lines after shifting is (N1+ N2) °, the coverage area is a sector arc, the radius is calculated by the degree of signal attenuation sent by the user to the base station, for example, assuming that the user transmits a signal to the base station with a signal attenuation degree of 20%, in order to prevent different signal attenuations caused by different obstacles existing at different angles, when the base station transmits a signal to the user in a sector area, when the attenuation degree is about 20%, obtaining an annular sector area adjacent to the sector arc, wherein the annular sector area comprises a plurality of Internet of things terminal devices adjacent to the user terminal, and the position information of each pre-laid terminal device of the internet of things is known, and the specific position information of the user terminal is obtained by performing proximity calculation on a plurality of terminal devices of the internet of things in the annular sector area.
According to the method, the arc radius area where the user terminal is located is calculated according to the wireless communication distance transmission principle, and under an ideal condition, when radio waves are transmitted in a free space, the energy of the radio waves cannot be absorbed by an obstacle, and reflection or scattering cannot be generated.
[Los](dB)＝32.44+20lgd(km)+20lgf(MHz)
Wherein Los is transmission loss and the unit is dB; d is the transmission distance in Km; f is the operating frequency in MHz. From the above formula, the propagation loss (also called attenuation) of the electric wave in free space is only related to the operating frequency f and the transmission distance d, and when f or d is doubled, Los will be increased by 6dB respectively.
For the following example, assume that the operating frequency f is 433.92MHz, the transmit power is 10dBm (10mW), the receive sensitivity is-105 dBm,
then the transmission loss at the maximum communication distance is Los ═ 115dB, and the equation is substituted to obtain:
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 the transmission distance under ideal conditions, and transmission loss will be generated by the atmosphere, obstacle, etc. in the actual signal transmission process, assuming that the transmission loss generated by the atmosphere, obstacle, etc. is 25dB, the transmission distance (i.e. relative distance) can be calculated by substituting the above formula: d is 1.7 km.
After the radius of the arc where the user is located is confirmed, the user can select to search for the adjacent Internet of things terminal equipment in a small radius range by considering different signal attenuation caused by environmental influences at different angles, wherein the radius can be 1.6-1.8 kilometers, the annular sector area shown in the figure 6 can be obtained, and the position information of the Internet of things terminal equipment in the area is subjected to close average calculation to obtain the position information of the user terminal.
Considering that different angle signals are affected differently by the environment, in order to improve the position positioning accuracy, the user terminal can receive and send signals near a plurality of base stations, and more accurate user position information is obtained by calculating the terminal equipment near the internet of things of the user terminal through the base stations. In addition, when the user terminal does not need to be positioned in real time, the display interface of the user terminal can be changed into a dynamic and static picture, a clock interface and the like.
The technical scheme can be used for various terminal devices such as smart phones, watch bracelets and the like which support voice.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits, and accordingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of positioning, comprising:
the base station receives and sends information with the user terminal to determine the signal direction of the user terminal and the relative distance between the base station and the user terminal;
the base station takes the signal incoming direction as a central line and transmits a signal for searching the terminal equipment of the Internet of things in a preset transmitting angle range;
the base station receives a signal returned by the terminal equipment of the Internet of things, and records the terminal equipment of the Internet of things, wherein the relative distance between the terminal equipment of the Internet of things and the base station is greater than or equal to the difference obtained by subtracting a first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and a second preset value;
the base station calculates the position information of the user terminal according to the recorded position information of the terminal equipment of the Internet of things and sends the calculated position information to the user terminal; wherein, calculating the position information of the user terminal comprises: acquiring longitude, latitude and altitude information of all searched terminal equipment of the Internet of things; and calculating longitude average values, latitude average values and altitude average values of all the searched terminal equipment of the Internet of things, and taking the calculated longitude average values, latitude average values and altitude average values as the position information of the user terminal.
2. The method according to claim 1, wherein the base station determines a relative distance between the base station and the user equipment, and specifically comprises:
the base station sends measurement pilot frequency configuration information to the user terminal, wherein the measurement pilot frequency configuration information specifies the sending power of the measurement pilot frequency sent by the user terminal;
the base station receives the measurement pilot frequency sent by the user terminal and calculates the transmission loss of the user terminal;
the base station calculates the relative distance between the base station and the user terminal through the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is the base 10 logarithm operator.
3. The method according to claim 1, wherein the base station records the terminal device of the internet of things whose relative distance from the base station is greater than or equal to the difference between the relative distance from the base station and the user terminal minus the first preset value, and is less than or equal to the sum of the relative distance from the base station and the user terminal plus the second preset value, and specifically includes:
the base station calculates the transmission loss of the terminal equipment of the Internet of things according to the receiving power of the signal returned by the terminal equipment of the Internet of things and the sending power carried in the signal returned by the terminal equipment of the Internet of things;
the base station calculates the relative distance between the base station and the terminal equipment of the Internet of things according to the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is a logarithmic operator with 10 as a base number;
and the base station determines and records the terminal equipment of the Internet of things, wherein the relative distance between the base station and the terminal equipment of the Internet of things is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value.
4. The method according to claim 1, wherein the predetermined transmission angle is in a range of 3 ° to 15 °.
5. The method of claim 1, wherein the method for the base station to calculate the location information of the ue comprises:
acquiring longitude, latitude and altitude information of all the searched terminal equipment of the Internet of things;
and calculating the longitude average value, the latitude average value and the altitude average value of all the found terminal equipment of the Internet of things, and taking the calculated longitude average value, latitude average value and altitude average value as the position information of the user terminal.
6. The method of claim 1, further comprising:
the user terminal gives a prompt whether position positioning is needed or not on a current display screen in the voice communication process;
if the position positioning is needed, the user terminal obtains the position information of the user terminal and the voice opposite terminal from the base station side, calculates the relative distance between the user terminal and the voice opposite terminal, and displays the position information and the relative distance of the user terminal and the voice opposite terminal on the current display screen.
7. A base station comprising a distance determining module, a searching module, a position calculating module and a transmitting module, wherein:
the distance determining module is used for determining the signal direction of the user terminal and the relative distance between the base station and the user terminal by receiving and transmitting information between the distance determining module and the user terminal, and outputting the signal direction and the relative distance between the base station and the user terminal to the searching module;
the searching module is used for transmitting a signal for searching the terminal equipment of the Internet of things within a preset transmitting angle range by taking the incoming direction of the signal as a central line, receiving the signal returned by the terminal equipment of the Internet of things, recording the terminal equipment of the Internet of things, wherein the relative distance between the terminal equipment of the Internet of things and the base station is greater than or equal to the difference obtained by subtracting a first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum obtained by adding a second preset value to the relative distance between the base station and the user terminal, and outputting the recorded position information of the terminal equipment of the Internet of things;
the position calculation module is used for receiving and calculating the position information of the user terminal according to the searched position information of the terminal equipment of the Internet of things and outputting the calculated position information to the sending module; wherein, calculating the position information of the user terminal comprises: acquiring longitude, latitude and altitude information of all searched terminal equipment of the Internet of things; calculating longitude average values, latitude average values and altitude average values of all searched terminal equipment of the Internet of things, and taking the calculated longitude average values, latitude average values and altitude average values as position information of the user terminal;
and the sending module is used for receiving the calculated position information of the user terminal and sending the position information to the user terminal.
8. The base station of claim 7, wherein the determining the relative distance between the base station and the user terminal by the distance determining module comprises:
sending measurement pilot frequency configuration information to the user terminal, wherein the measurement pilot frequency configuration information specifies the sending power of the measurement pilot frequency sent by the user terminal, receiving the measurement pilot frequency sent by the user terminal, and calculating the transmission loss of the user terminal;
calculating a relative distance between the base station and the user terminal by the following formula:
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is the base 10 logarithm operator.
9. The base station of claim 7, wherein the internet of things terminal device that has the relative distance between the record of the search module and the base station greater than or equal to the difference between the relative distance between the base station and the user terminal minus the first preset value and less than or equal to the sum of the relative distance between the base station and the user terminal plus the second preset value comprises:
calculating the transmission loss of the terminal equipment of the Internet of things according to the receiving power of the signal returned by the terminal equipment of the Internet of things and the sending power carried in the signal returned by the terminal equipment of the Internet of things;
calculating the relative distance between the base station and the terminal equipment of the Internet of things according to the following formula;
LOS＝32.44+20lgd+20lgf (1)；
LOS is transmission LOSs, and the unit is dB; d is the relative distance in kilometers; f is the working frequency and the unit is megahertz; lg is a logarithmic operator with 10 as a base number;
and determining and recording the terminal equipment of the internet of things, wherein the relative distance between the terminal equipment of the internet of things and the base station is greater than or equal to the difference obtained by subtracting the first preset value from the relative distance between the base station and the user terminal, and is less than or equal to the sum of the relative distance between the base station and the user terminal and the second preset value.
10. The base station of claim 7, wherein the predetermined transmission angle ranges from 3 ° to 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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| CN201710755010.XA CN109429333B (en) | 2017-08-29 | 2017-08-29 | Positioning method and base station |
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| CN110166947B (en) * | 2019-06-20 | 2020-09-25 | 维沃移动通信有限公司 | Position sharing method, first mobile terminal and base station |
| CN111770472A (en) * | 2020-06-08 | 2020-10-13 | Oppo广东移动通信有限公司 | Vehicle positioning method and device, vehicle, storage medium and terminal |
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| US9336240B2 (en) * | 2011-07-15 | 2016-05-10 | Apple Inc. | Geo-tagging digital images |
| CN103618770B (en) * | 2013-11-19 | 2017-02-15 | 清华大学 | Locating method, system and device based on Internet of Things, and terminals |
| KR102555796B1 (en) * | 2015-03-30 | 2023-07-13 | 어페로, 인크. | System and method for accurately detecting user location in IoT system |
| CN105527642B (en) * | 2016-01-22 | 2018-03-30 | 北京日月九天科技有限公司 | A kind of single star positioner and method |
| CN105891774A (en) * | 2016-03-29 | 2016-08-24 | 北京九星智元科技有限公司 | Dynamic tracking positioning system and method for robot dolly |
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| CN1163101C (en) * | 2001-04-28 | 2004-08-18 | 华为技术有限公司 | Mobile-station positioning method in mobile communication system |
| CN101201398A (en) * | 2007-12-05 | 2008-06-18 | 电子科技大学 | Method for positioning indirect wave using auxiliary measuring angle of adjacent station ranging |
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