WO2017012110A1 - Positioning method and device thereof - Google Patents

Abstract

Disclosed are a positioning method and a device thereof. The positioning method comprises: a user equipment acquiring information about a base station, wherein the base station comprises a serving base station and at least two adjacent base stations of the serving base station, and the information about the base station at least comprises information about positioning reference signals of the serving base station and the at least two adjacent base stations of the serving base station; and acquiring positioning information according to the information about the base station, and sending the positioning information to the serving base station, wherein the positioning information is used for positioning the user equipment by the serving base station. By means of the solution, the positioning delay time can be reduced, and the positioning response speed of a base station can be accelerated, thereby achieving rapid and accurate positioning.

Description

Positioning method and device thereof [Technical Field]

The present application relates to the field of communication networks, and in particular, to a positioning method and apparatus therefor.

【Background technique】

Generally, the Long Term Evolution (LTE) based positioning method is implemented by using an Observed Time Difference Of Arrival (OTDOA) method.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of an embodiment of an OTDOA positioning system in the prior art. The prior art OTDOA positioning system includes at least three base stations 110, user equipment 120, mobility management entity 130, and location server 140. The base station 110 includes a serving base station 111 of the user equipment 120 and at least two neighboring base stations 112 of the serving base station 111.

User equipment 120 is capable of wirelessly communicating with at least two neighboring base stations 112 of serving base station 111, respectively.

When the user equipment 120 needs to be located, the user equipment 120 transmits information requesting positioning to the positioning server 140 through the serving base station 111 and the mobility management entity 130. After the location server 140 responds to the request, the response information is transmitted to the user equipment by the serving base station 111 and the mobility management entity 130. The mobility management entity 130 forwards the location-related information between the user equipment 120 and the location server 140 through its own non-access stratum.

After receiving the response information, the user equipment 120 receives the positioning reference signal (PRS) broadcast by the at least two neighboring base stations 112 of the serving base station 111, and calculates any two received according to the received PRS. The time difference of the PRS, and the calculated time difference of any two PRSs is transmitted to the positioning server 140 through the serving base station 111 and the mobility management entity 130.

The location server 140 determines the location of the user terminal 120 based on the time difference of any two PRSs, the location of the serving base station 111, and the location of at least two neighboring base stations 112, thereby locating the user terminal 120.

In the LTE-based OTDOA positioning method, the positioning server 140 pairs the user terminal 120. When the positioning is performed, the serving base station 111 and the mobility management entity 130 are required to forward related positioning information, where the related positioning information may include: information for requesting positioning, information for responding to the request, time difference between any two PRSs, and the like.

However, when the related positioning information is processed by the serving base station 111 and the mobility management entity 130, there is a certain time difference. When the user equipment 120 moves at a faster speed, the positioning server 140 determines the user according to the relevant positioning information. The location of device 120 will have a large deviation, resulting in location server 140 not being able to quickly and accurately locate user device 120.

[Summary of the Invention]

The technical problem to be solved by the present application is to provide a positioning method and a device thereof, which can quickly and accurately locate a user equipment.

In order to solve the above problem, the first aspect of the present application provides a positioning method, including: acquiring, by a user equipment, information of a base station, where the base station includes a serving base station and at least two neighboring base stations of the serving base station, where the base station The information includes at least information of the positioning reference signal of the serving base station and the at least two neighboring base stations of the serving base station; acquiring positioning information according to the information of the base station, and transmitting the positioning information to the serving base station, the positioning information The serving base station is configured to locate the user equipment.

With reference to the first aspect, in a first possible implementation manner of the first aspect of the present application, the acquiring the location information according to the information of the base station, and sending the location information to the serving base station includes: according to the base station The information of the positioning reference signal included in the information is respectively calculated by receiving time difference information of any two of the positioning reference signals; and transmitting time difference information of the plurality of positioning reference signals to the serving base station, the plurality of The time difference information of the positioning reference signal is used by the serving base station to locate the user equipment.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the information of the base station further includes location information of the serving base station and at least two neighboring base stations of the serving base station; Obtaining the information of the base station and acquiring the positioning information, and sending the positioning information to the serving base station includes: calculating, according to the information of the positioning reference signal included in the information of the base station, a time difference of receiving any two of the positioning reference signals Information; based on the service base Calculating, by the station and the location information of the at least two neighboring base stations of the serving base station, a distance between the serving base station and the at least two neighboring base stations; according to the time difference information of the positioning reference signal, the serving base station and the at least two neighboring base stations Determining location information of the user equipment, and transmitting the location information to the serving base station, where the location information is a location of the user equipment relative to the serving base station.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the time difference information according to the positioning reference signal, the serving base station, and the at least two neighboring parties After the step of determining the location information of the user equipment by the distance of the base station, the method further includes: calculating a position difference of the two adjacent locations according to the two adjacent location information, and The location difference is sent to the serving base station, and the location difference is used by the serving base station to determine location information of the user equipment.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect of the present application, the positioning information includes at least a time difference of receiving any two of the positioning reference signals, and at least two neighboring locations of the serving base station. The number of the base station and the sequence of the number.

With reference to the first aspect, and any one of the first to fourth possible implementation manners of the first aspect, in the fifth possible implementation manner of the first aspect, the information of the base station further includes the at least two a timing deviation of the neighboring base station with respect to the serving base station; after the step of acquiring the positioning information according to the information of the base station, before the step of transmitting the positioning information to the serving base station, the method further includes: according to the at least The positioning information is corrected by timing offsets of two neighboring base stations with respect to the serving base station.

In order to solve the above problem, the second aspect of the present application provides a method for locating a method, where the serving base station broadcasts a positioning reference signal after receiving the positioning request information sent by the user equipment, and receives the positioning information sent by the user equipment. And locating the user equipment according to the location information, where the location information is that the user equipment sends a positioning reference signal according to the serving base station and at least two neighboring base stations of the serving base station, and the serving base station And determining location information of at least two neighboring base stations of the serving base station.

With reference to the second aspect, in a first possible implementation manner of the second aspect of the present application, after the step of receiving the positioning information sent by the user equipment, and positioning the user equipment according to the positioning information, The method further includes: receiving a location difference sent by the user equipment, determining location information of the user equipment according to the location difference; wherein the location difference is the user The difference between the two adjacent locations of the device, the location difference being calculated by the user equipment based on the two adjacent location information.

In order to solve the above problem, the third aspect of the present application provides a positioning apparatus, including a first acquiring module, a second acquiring module, and a sending module. The first acquiring module is configured to acquire information of a base station, where the base station includes a serving base station and at least two neighboring base stations of the serving base station, the information of the base station at least including information of a positioning reference signal of the serving base station and at least two neighboring base stations of the serving base station; the second acquiring module is configured to The information about the base station acquired by the first acquiring module acquires positioning information; the sending module is configured to send the positioning information acquired by the second acquiring module to the serving base station, where the positioning information is used by the The serving base station locates the user equipment.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the second acquiring module is configured to: use, according to information about the positioning reference signal included in the information about the base station acquired by the first acquiring module, And calculating, by the sending module, the time difference information of the plurality of the positioning reference signals calculated by the second acquiring module, to the serving base station, where The time difference information of the plurality of positioning reference signals is used by the serving base station to locate the user equipment.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the information about the base station acquired by the first acquiring module further includes a location of the serving base station and at least two neighboring base stations of the serving base station. The second obtaining module is configured to calculate time difference information of any two of the positioning reference signals according to the information of the positioning reference signal acquired by the first acquiring module, and configured to acquire according to the first acquiring module. Calculating a distance between the serving base station and at least two neighboring base stations by using location information of the serving base station and at least two neighboring base stations of the serving base station; and time difference information for the positioning reference signal, the serving base station, and at least The distance between the two neighboring base stations determines location information of the user equipment, where the location information is a location of the user equipment relative to the serving base station; the sending module is configured to determine a location determined by the second acquiring module Information is sent to the serving base station.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the device further includes a location difference calculation module, where the location difference calculation module is configured to be used according to the foregoing Calculating a position difference between the two adjacent positions by using two adjacent pieces of position information calculated by the acquisition module; the sending module is configured to calculate the position difference calculation module The difference in location is sent to the serving base station, wherein the location difference is used by the serving base station to determine location information of the user equipment.

With reference to the third aspect, in a fourth possible implementation manner of the third aspect of the present application, the location information acquired by the second acquiring module includes at least a time difference of receiving any two of the positioning reference signals, The number of at least two neighboring base stations of the serving base station and the sequence of the numbers.

With reference to the third aspect, and any one of the first to fourth possible implementation manners of the third aspect, in the fifth possible implementation manner of the third aspect of the present application, The information further includes a timing offset of the at least two neighboring base stations relative to the serving base station; the apparatus further comprising a calibration module, the calibration module configured to acquire the at least two neighboring base stations according to the first acquiring module Correcting the positioning information determined by the second acquiring module with respect to the timing offset of the serving base station.

In order to solve the above problem, a fourth aspect of the present application provides a positioning apparatus, including a receiving module, a broadcasting module, and a positioning module. The receiving module is configured to receive positioning request information sent by a user equipment, and to receive the user equipment. And the positioning information, where the positioning information is that the user equipment sends the positioning reference signal, the serving base station, and the serving base station according to the serving base station and the at least two neighboring base stations of the serving base station. Determining the location information of the neighboring base station; the broadcast module is configured to: when the receiving module receives the positioning request information sent by the user equipment, broadcast the positioning reference signal; the positioning module is configured to receive the user at the receiving module When the location information is sent by the device, the user equipment is located according to the location information.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the receiving module is further configured to receive a location difference sent by the user equipment, where the location difference is that the user equipment is in two a difference between the adjacent locations, the location difference is calculated by the user equipment according to the two adjacent location information; the positioning module is further configured to determine, according to the location difference received by the receiving module Location information of the user device.

In order to solve the above problem, a fifth aspect of the present application provides a positioning apparatus, including a processor and a transmitter, where the processor is configured to acquire information of a base station, and acquire positioning information according to information of the base station, where the base station includes a serving base station and at least two neighboring base stations of the serving base station, the information of the base station including at least two serving base stations and the serving base station Information of a positioning reference signal of a neighboring base station; the transmitter is configured to send the positioning information acquired by the processor to the serving base station, where the positioning information is used by the serving base station to locate the user equipment .

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the processor is configured to calculate, according to information about the positioning reference signal included in the information of the base station, any two of the positioning reference And a time difference information of the plurality of the positioning reference signals calculated by the processor, where the time difference information of the plurality of the positioning reference signals is used for the The serving base station locates the user equipment.

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the information about the base station that is acquired by the processor further includes location information of the serving base station and at least two neighboring base stations of the serving base station; The processor is configured to calculate, according to information about the positioning reference signal included in the information of the base station, time difference information that is received by any two of the positioning reference signals; and at least two according to the serving base station and the serving base station. Calculating, by the location information of the neighboring base station, a distance between the serving base station and the at least two neighboring base stations; and determining, according to the time difference information of the positioning reference signal, the distance between the serving base station and the at least two neighboring base stations, determining the user equipment Location information, where the location information is a location of the user equipment relative to the serving base station; the transmitter is configured to send location information determined by the processor to the serving base station.

With reference to the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the processor is further configured to calculate the two according to two adjacent location information a position difference of the adjacent location; the transmitter is configured to send a location difference calculated by the processor to the serving base station, where the location difference is used by the serving base station to determine the user equipment location information. With reference to the fifth aspect, in a fourth possible implementation manner of the fifth aspect of the present application, the positioning information acquired by the processor includes at least a time difference of receiving the any two of the positioning reference signals, and the serving base station The number of at least two neighboring base stations and the order of the numbers.

With reference to the fifth aspect, and any one of the first to fourth possible implementation manners of the fifth aspect, in the fifth possible implementation manner of the fifth aspect, the information about the base station acquired by the processor further includes Determining a timing deviation of at least two neighboring base stations relative to the serving base station; The processor is further configured to correct the positioning information according to a timing offset of the at least two neighboring base stations with respect to the serving base station.

In order to solve the above problem, a sixth aspect of the present application provides a positioning apparatus, including a receiver and a processor, where the receiver is configured to receive positioning request information sent by a user equipment, and receive positioning information sent by the user equipment, where The location information is determined by the user equipment according to the location information of the at least two neighboring base stations of the serving base station and the serving base station, the positioning reference signal, the serving base station, and the at least two neighboring base stations of the serving base station. The processor is configured to: when the receiver receives the positioning request information sent by the user equipment, broadcast the positioning reference signal; and when the receiver receives the positioning information sent by the user equipment, according to the The positioning information locates the user equipment.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the receiver is further configured to receive a location difference sent by the user equipment, where the location difference is that the user equipment is in two a difference between adjacent positions, the position difference is calculated by the user equipment according to the two adjacent location information; the processor is further configured to determine, according to the location difference received by the receiving module Location information of the user device.

In the above solution, the user equipment communicates with the base station to obtain the information of the base station, and obtains the positioning information according to the information of the base station, and sends the positioning information to the serving base station, so that the serving base station locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning. Since the positioning information between the user equipment and the base station does not need to be forwarded by the transit device, the positioning delay time can be reduced, the positioning response speed of the base station can be accelerated, and the user equipment can be quickly and accurately located.

[Description of the Drawings]

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural diagram of an embodiment of an OTDOA positioning system in the prior art;

2 is a schematic structural diagram of an embodiment of an OTDOA positioning system of the present application;

3 is a flow chart of an embodiment of a positioning method of the present application;

4 is a flow chart of another embodiment of a positioning method of the present application;

FIG. 5 is a flowchart of still another embodiment of the positioning method of the present application; FIG.

6 is a schematic structural view of an embodiment of a positioning device of the present application;

7 is a schematic structural view of another embodiment of a positioning device of the present application;

Figure 8 is a schematic structural view of still another embodiment of the positioning device of the present application;

9 is a schematic structural view of still another embodiment of a positioning device of the present application;

FIG. 10 is a schematic structural view of still another embodiment of the positioning device of the present application.

【detailed description】

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the following description, for purposes of illustration and description, reference

Referring to FIG. 2, FIG. 2 is a schematic structural diagram of an embodiment of an OTDOA positioning system of the present application. The positioning system of this embodiment includes at least two neighboring base stations 230 and 240 of the user equipment 210, the serving base station 220, and the serving base station 220. The user equipment 210 can communicate with at least two neighboring base stations 230 and 240 of the serving base station 220 and the serving base station 220, respectively, and the at least two neighboring base stations 230 and 240 of the serving base station 220 and the serving base station 220 can also communicate with each other. The information related to the positioning between the neighboring base stations 230 and 240 of the user equipment 210, the serving base station 220, and the serving base station 220 is at the Media Access Control (MAC) of the data link layer.

When the user equipment 210 needs to be located, the user equipment 210 sends a location request to the serving base station. Information and get information about the base station. The base station includes at least two neighboring base stations 230 and 240 of the serving base station 220 and the serving base station 220. The information of the base station includes at least the positioning reference signal (PRS) of the serving base station 220 and at least two neighboring base stations 230 and 240 of the serving base station 220. )Information. The information of the base station is transmitted at the MAC layer in the data link layer.

The PRS is broadcast by the serving base station 220 and the at least two neighboring base stations 230 and 240, respectively.

The PRS includes at least a period, and the PRS has a one-to-one correspondence with the base station. The PRS is a periodic broadcast signal, and the period of the PRS may be 160 ms or 320 ms or 640 ms or 1280 ms. However, the period of the PRS may be other values, which is not limited herein. When the user equipment 210 moves, the smaller the period of the PRS, the higher the accuracy of the location information of the user equipment 210 obtained according to the PRS. The PRS periods of the base stations participating in the positioning may be the same or different.

The PRS may also include an identity of the base station, and the identity of the base station is used to identify the base station transmitting the PRS.

The user equipment 210 acquires the positioning information according to the information of the base station, and sends the positioning information to the serving base station 220, where the positioning information is used by the serving base station 220 to locate the user equipment 210.

For example, the user equipment 210 acquires positioning information according to the information of the PRS of the serving base station, the information of the PRS of the at least two neighboring base stations 230 and 240 of the serving base station 220, and transmits the positioning information to the serving base station, so that the positioning information is sent to the serving base station. After acquiring the location information, the serving base station 220 locates the user equipment 210 according to the location information.

The location information is information required by the serving base station to locate the user equipment, so that the serving base station 220 can determine the current location of the user equipment 210 according to the location information.

The positioning information may be a reference signal time difference (RSTD), and the RSTD is a time difference between the positioning reference signals received by the user equipment 210 by any two base stations. The location information may also be location information (longitude, latitude information, or location difference) of the user equipment 210, but is not limited thereto, and may be other location-related information.

For example, the user equipment 210 acquires the positioning information according to the information of the PRS of the serving base station 220 and the information of the PRSs of the at least two neighboring base stations 230 and 240 of the serving base station 220, and transmits the positioning information to the serving base station 220. After the serving base station 220 obtains the positioning information, the user equipment 210 is located according to the positioning information.

The location information is information required by the serving base station 220 to locate the user equipment 210, so that the serving base station 220 can determine the current location of the user equipment 210 according to the positioning information. Set. The positioning information includes at least a plurality of reference signal arrival time differences RSTD, and the RSTD is a time difference of the positioning reference signals received by the user equipment 210 by any two base stations.

The RSTD is used to enable the serving base station 220 or the user equipment 210 to determine location information of the user equipment 210 based on a plurality of RSTDs.

Optionally, the positioning information includes at least a time difference of any two positioning reference signals, a sequence of numbers and numbers of at least two neighboring base stations 230 and 240 of the serving base station 220. The time difference of any two positioning reference signals is the time difference of the positioning reference signal received by the user equipment 210 by any two base stations, that is, the RSTD. The number of time differences of any two positioning reference signals is plural.

Since the positioning technology of the 3rd Generation Partner Project (3GPP) clearly demonstrates that 16 base stations can approximate the theoretical optimal value, 9 base stations can have extremely ideal positioning effects. The location information needs to indicate that the sequence of the base station is at most 1~n*(n-1)/2, that is, 16*(16-1)/2=120, and 7 bits (bits) (2 ⁷ = 128) are needed. The difference relationship between any two base stations is shown, and 1 bit is added to indicate the order before and after, that is, who is ahead of them, a total of 8 bits can indicate all relationships. Therefore, a maximum of 8 bits in the positioning information can indicate the relationship between the 16 base stations.

The following is an example of six base stations to illustrate the base station sequence:

Base station number	1	2	3	4	5	6
							Difference number relative to base station 1		1	2	3	4	5
Difference number relative to base station 2			6	7	8	9
							Difference number relative to base station 3				10	11	12
Difference number relative to base station 4					13	14
							Difference number relative to base station 5						15

As shown in the above table, the numbers of the six base stations are 1, 2, 3, 4, 5, and 6, respectively. It is assumed that the base station 1 is the serving base station 220, and the base station 2-6 is the neighboring base station of the base station 1. The relative RSTD calculation relationship of the six base stations ranges from 1 to 15.

Optionally, the user equipment 210 is configured to obtain the positioning information according to the information of the base station, and the positioning information is sent to the serving base station 220. The user equipment 210 calculates, according to the information of the positioning reference signal included in the information of the base station, any two positioning reference signals are received. Time difference information; multiple The time difference information of the positioning reference signal is sent to the serving base station 220, and the time difference information of the plurality of positioning reference signals is used by the serving base station 220 to locate the user equipment 210.

For example, the user equipment 210 acquires the time when the PRS sent by the serving base station 220 is received, and receives the information about the PRS of the serving base station 220 included in the information of the base station and the information of the PRS of the at least two neighboring base stations 230 and 240 of the serving base station 220. The information of the time difference RSTD of the positioning reference signals received by any two base stations is calculated at the time of the PRS transmitted by the at least two neighboring base stations 230 and 240.

In this case, the positioning information is information that receives the time difference RSTD of the positioning reference signals of any two base stations, and the number of RSTD information is plural. The information of the RSTD includes the identifiers of any two base stations corresponding to the RSTD value and the RSTD value. The identity of the base station may include the number of the base station and the sequence of any two base stations.

Optionally, the information of the base station further includes a timing offset of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220. After obtaining the RSTD information, the user equipment 210 may modify the RSTD information according to the timing offset of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220 to correct the positioning information.

For example, user equipment 210 acquires timing offsets of at least two neighboring base stations 230 and 240 relative to serving base station 220.

The timing deviation of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220 may be input by the user through the setting interface, or may be obtained by the serving base station 220 in communication with the neighboring base stations 230 and 240, and may also be served by the user equipment 210. The period, time offset of the information of the PRS of the base station 220 and the at least two neighboring base stations 230 and 240 of the serving base station 220 includes a timing offset of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220. There are no restrictions here.

The time offset is the offset from the standard reference time. When the time offsets corresponding to each of the serving base station 220 and the at least two neighboring base stations 230 and 240 are the same, the serving base station 220, the at least two neighboring base stations 230 and 240 are synchronized, and there is no timing offset. When there is a difference in the time offset corresponding to each of the serving base station 220 and the at least two neighboring base stations 230 and 240, the serving base station 220, the at least two neighboring base stations 230 and 240 are not synchronized, and there is a timing offset.

The user equipment 210 acquires the information of the time difference RSTD of the positioning reference signals of any two base stations, and the timing deviation of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220. Thereafter, the information of the RSTD is modified according to the timing deviation of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220, respectively.

For example, when the timing deviation of the neighboring base station 230 relative to the serving base station 220 is a delay of 5 ms, 5 ms is added to the RSTD of the serving base station 220 and the neighboring base station 230 to correct the RSTD information of the serving base station 220 and the neighboring base station 230. . When the timing deviation of the neighboring base station 240 relative to the serving base station 220 is 5 ms ahead, 5 ms is subtracted from the RSTD of the serving base station 220 and the neighboring base station 240 to correct the RSTD information of the serving base station 220 and the neighboring base station 240.

User equipment 210 transmits all of the RSTD information to serving base station 220. The user equipment 210 may send multiple RSTDs in the positioning information to the serving base station 220 through a MAC buffer status report (BSR) to notify the serving base station 220 of the number of RSTDs to be acquired by the serving base station 220 through a total count value. . The BSR is an existing message at the MAC layer.

The user equipment 210 may also indicate the number of RSTDs that are subsequently present in the current positioning by using a 1-bit extension field after transmitting an RSTD to the serving base station 220. The number of RSTDs ranges from 1 to n*(n-1)/2, where n is the number of base stations participating in the positioning. The number of RSTDs is related to the number of base stations participating in the positioning, and the base stations participating in the positioning include the serving base station 220 and at least two neighboring base stations of the serving base station 220. The more base stations participating in the positioning, the more the number of RSTDs.

Since the positioning technology of the 3rd Generation Partnership Project 3GPP clearly demonstrates that 16 base stations can approximate the theoretical optimal value, 9 base stations can have extremely ideal positioning effects. Therefore, the number of RSTDs ranges from 1 to 16*(16-1)/2=120, and up to 7 bits (2 ⁷ =128) is required, which means the number of all RSTDs, and 1≤ indicates the RSTD. The number of bits in the number is ≤ 7.

After receiving the information of all the RSTDs, the serving base station 220 calculates the serving base station 220 and the service respectively according to the information of all the RSTDs, the location information of the serving base station 220, and the location information of the at least two neighboring base stations 230 and 240 of the serving base station 220. The distance between the neighboring base stations 230 and 240 of the base station 220, and the information of the time difference RSTD of the positioning reference signals of any two base stations, the distance between the serving base station 220 and the at least two neighboring base stations 230 and 240, determines the user equipment 210. location information. The location information is the location of the user equipment 210 relative to the serving base station 220.

The serving base station 220 determines the location information of the user equipment 210 according to the following formula.

(x, y) is the location of the user equipment 210 to be measured; (x ₁ , y ₁ ) is the location of the serving base station 220; (x ₂ , y ₂ ) is the location of the neighboring base station 230; (x ₃ , y ₃ ) The location of the neighboring base station 240, where c is the speed of light; the RSTD ₁ is the time difference between the user equipment 210 receiving the PRS transmitted by the serving base station 220 and the neighboring base station 230; and the RSTD ₂ is the PRS sent by the user equipment 210 to the serving base station 220 and the neighboring base station 240. The time difference.

The location information of at least two neighboring base stations 230 and 240 of the serving base station 220 may be pre-stored in the serving base station 220, or may be acquired by the serving base station 220 in communication with at least two neighboring base stations 230 and 240.

It can be understood that the above formula is a calculation formula applicable to the positioning of the user equipment by the serving base station and two neighboring base stations. When the serving base station and the three or more neighboring base stations locate the user equipment, the basis of the above formula may be used. Add the formula in a similar way, so I won't go into details here.

Optionally, the information of the base station further includes location information of the serving base station 220 and at least two neighboring base stations 230 and 240 of the serving base station 220. The user equipment 210 may obtain the positioning information according to the information of the base station, and the sending the positioning information to the serving base station 220 may include:

The user equipment 210 calculates the time difference information of the received two positioning reference signals according to the information of the positioning reference signal included in the information of the base station; and calculates the serving base station according to the location information of the at least two neighboring base stations 230 and 240 of the serving base station 220 and the serving base station 220. The distance between the 220 and the at least two neighboring base stations 230 and 240; determining the location information of the user equipment 210 according to the time difference information of the positioning reference signal, the distance between the serving base station 220 and the at least two neighboring base stations 230 and 240; and transmitting the location information to the service The base station 220, wherein the location information is a location of the user equipment 210 relative to the serving base station 220.

For example, the serving base station 220 pre-stores location information of at least two neighboring base stations 230 and 240, or communicates with at least two neighboring base stations 230 and 240 in advance to acquire location information of at least two neighboring base stations 230 and 240.

The user equipment 210 acquires location information of the serving base station 220, location information of at least two neighboring base stations 230 and 240 from the serving base station 220.

The user equipment 210 obtains the received service according to the information of the PRS of the serving base station 220 included in the information of the base station, and the information of the PRSs of the at least two neighboring base stations 230 and 240 of the serving base station 220. The time of the PRS transmitted by the base station 220 and the time when the PRS transmitted by the at least two neighboring base stations 230 and 240 are received, and information of the time difference RSTD of the positioning reference signals received by any two base stations is calculated.

When the information of the base station may further include a timing deviation of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220, after the user equipment 210 obtains the information of the RSTD, according to the at least two neighboring base stations 230 and 240 with respect to the serving base station 220 The timing offset corrects the information of the RSTD, thereby correcting the positioning information.

For example, after the user equipment 210 obtains the information of the RSTD, the user equipment 210 acquires the timing offset of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220.

The timing deviation of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220 may be input by the user through the setting interface, or may be obtained by the serving base station 220 in communication with the neighboring base stations 230 and 240, and may also be served by the user equipment 210. The period, time offset of the information of the PRS of the base station 220 and the at least two neighboring base stations 230 and 240 of the serving base station 220 includes a timing offset of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220. There are no restrictions here.

The time offset is the offset from the standard reference time. When the time offsets corresponding to each of the serving base station 220 and the at least two neighboring base stations 230 and 240 are the same, the serving base station 220, the at least two neighboring base stations 230 and 240 are synchronized, and there is no timing offset. When there is a difference in the time offset corresponding to each of the serving base station 220 and the at least two neighboring base stations 230 and 240, the serving base station 220, the at least two neighboring base stations 230 and 240 are not synchronized, and there is a timing offset.

After the user equipment 210 acquires the information of the time difference RSTD of the positioning reference signals of any two base stations, the timing deviation of the at least two neighboring base stations 230 and 240 with respect to the serving base station 220, according to the at least two neighboring base stations 230 and 240 with respect to the service. The timing offset of the base station 220 modifies the information of the RSTD, respectively.

For example, when the timing deviation of the neighboring base station 230 relative to the serving base station 220 is a delay of 5 ms, 5 ms is added to the RSTD of the serving base station 220 and the neighboring base station 230 to correct the RSTD information of the serving base station 220 and the neighboring base station 230. . When the timing deviation of the neighboring base station 240 relative to the serving base station 220 is 5 ms ahead, 5 ms is subtracted from the RSTD of the serving base station 220 and the neighboring base station 240 to correct the RSTD information of the serving base station 220 and the neighboring base station 240.

The user equipment 210 determines the location information of the user equipment 210 according to the corrected information of the RSTD. interest. The method for determining the location information of the user equipment 210 according to the information of the plurality of RSTDs is the same as the method for calculating the foregoing, and the method for determining the location information of the user equipment 210 according to the information of multiple RSTDs is not described herein.

After calculating the information of all the RSTDs or correcting the information of all the RSTDs, the user equipment 210 calculates the serving base station 220 and at least two according to the location information of the serving base station 220 and the location information of the at least two neighboring base stations 230 and 240 of the serving base station 220. The distance between the neighboring base stations 230 and 240; determining the location information of the user equipment 210 according to the information of all the RSTDs, the distance between the serving base station 220 and the at least two neighboring base stations 230 and 240, and transmitting the location information to the serving base station 220, where The information is the location of the user equipment 210 relative to the serving base station 220. The location information includes longitude coordinates and latitude coordinates of the current location of the user equipment 210. The longitude and latitude coordinates can be represented by 24 bits, respectively.

The user equipment 210 can determine the location information of the user equipment 210 according to the following formula.

(x, y) is the location of the user equipment 210 to be measured; (x ₁ , y ₁ ) is the location of the serving base station 220; (x ₂ , y ₂ ) is the location of the neighboring base station 230; (x ₃ , y ₃ ) The location of the neighboring base station 240, where c is the speed of light; the RSTD ₁ is the time difference between the user equipment 210 receiving the PRS transmitted by the serving base station 220 and the neighboring base station 230; and the RSTD ₂ is the PRS sent by the user equipment 210 to the serving base station 220 and the neighboring base station 240. The time difference.

The location information of the at least two neighboring base stations 230 and 240 of the serving base station 220 may be pre-stored in the serving base station 220, or may be obtained by the serving base station 220 in communication with at least two neighboring base stations 230 and 240.

It can be understood that after calculating two adjacent location information, the user equipment 210 may further calculate a location difference between two adjacent locations according to two adjacent location information, and send the location difference to the serving base station 220. So that the serving base station 220 determines the location information of the user equipment 210 based on the location difference.

For example, after the user equipment 210 calculates the position information corresponding to the PRS of two adjacent periods according to the foregoing method, the position difference between two adjacent position information is calculated according to two adjacent position information, and two adjacent positions are calculated. The location difference of the location information is sent to the serving base station 220, so that the serving base station 220 according to the location difference, the previous location information of the two adjacent location information, and the serving base station 220 The location information determines the current location information of the user equipment 210.

After the serving base station 220 determines the current location information of the user equipment 210, the service, application, road condition, and the like may be pushed to the user equipment 210.

In the above solution, the user equipment communicates with the base station to obtain the information of the base station, and obtains the positioning information according to the information of the base station, and sends the positioning information to the serving base station, so that the serving base station locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

The user equipment may also send the location difference of the two adjacent location information to the serving base station, so that the serving base station determines the current location information of the user equipment according to the location difference between the two adjacent location information, because two adjacent ones are transmitted. The location difference of the location information requires less transmission resources, which can speed up transmission efficiency and make positioning more accurate.

Please refer to FIG. 3. FIG. 3 is a flowchart of an embodiment of a positioning method of the present application. This embodiment is described from the perspective of a user equipment, which may be a mobile phone, a PAD, or an in-vehicle device. The positioning method of this embodiment includes the following steps:

S101: The user equipment communicates with the base station to obtain information about the base station, where the base station includes a serving base station and at least two neighboring base stations of the serving base station, where the information of the base station includes at least a serving base station and the serving base station. Information of a positioning reference signal of at least two neighboring base stations.

When the user equipment needs to be located, the user equipment communicates with the serving base station, and the user equipment sends the positioning request information to the serving base station, and acquires information of the base station, where the base station includes the serving base station and at least two neighboring base stations of the serving base station, and the information of the base station includes at least Information of a positioning reference signal PRS of the serving base station and at least two neighboring base stations of the serving base station. The information of the base station is transmitted at the MAC layer in the data link layer.

The PRS is broadcast by the serving base station and the at least two neighboring base stations, respectively.

The PRS includes at least a period, and the PRS has a one-to-one correspondence with the base station. The PRS is a periodic broadcast signal, and the period of the PRS may be 160 ms or 320 ms or 640 ms or 1280 ms. However, the period of the PRS may be other values, which is not limited herein. When the user equipment moves, the smaller the period of the PRS, the more accurate the location information of the user equipment obtained according to the PRS. The PRS periods of the base stations participating in the positioning are the same.

The PRS may also include an identity of the base station, and the identity of the base station is used to identify the base station transmitting the PRS.

S102: Acquire positioning information according to the information of the base station, and send the positioning information to the serving base station, where the positioning information is used by the serving base station to locate the user equipment.

The user equipment acquires the positioning information according to the information of the base station, and sends the positioning information to the serving base station, so that the serving base station can locate the user equipment according to the positioning information after receiving the positioning information.

For example, the user equipment acquires the positioning information according to the information of the PRS of the serving base station and the information of the PRS of the at least two neighboring base stations of the serving base station, and sends the positioning information to the serving base station, so that the serving base station acquires After locating the information, the user equipment is located according to the positioning information.

The location information is information required by the serving base station to locate the user equipment, so that the serving base station can determine the current location of the user equipment according to the location information.

The positioning information may be a plurality of reference signal arrival time differences RSTD, and the RSTD is a time difference between the positioning reference signals received by the user equipment of any two base stations. The location information may also be location information (longitude, latitude information, or location difference) of the user equipment, but is not limited thereto, and may be other location-related information.

When the location information is multiple RSTDs, the user equipment may send multiple RSTDs in the location information to the serving base station by using a MAC buffer status report (BSR) to notify the serving base station of the current location by using a total count value. The number of RSTDs that need to be obtained. The BSR is an existing message at the MAC layer.

After the user equipment sends an RSTD to the serving base station, the number of RSTDs that exist in the current positioning is indicated by the extended field of 1 bit. The number of RSTDs ranges from 1 to n*(n-1)/2, where n is the number of base stations participating in the positioning. The number of RSTDs is related to the number of base stations participating in the positioning, and the base stations participating in the positioning include the serving base station and at least two neighboring base stations of the serving base station. The more base stations participating in the positioning, the more the number of RSTDs.

Since the positioning technology of the 3rd Generation Partnership Project 3GPP clearly demonstrates that 16 base stations can approximate the theoretical optimal value, 9 base stations can have extremely ideal positioning effects. Therefore, the number of RSTDs ranges from 1 to 16*(16-1)/2=120, and up to 7 bits (2 ⁷ =128) is required, which means the number of all RSTDs, and 1≤ indicates the RSTD. The number of bits in the number is ≤ 7.

After the serving base station obtains multiple RSTDs, according to the following formula

The location information of the user device can be determined.

(x, y) is the location of the user equipment 210 to be measured; (x ₁ , y ₁ ) is the location of the serving base station; (x ₂ , y ₂ ) is the location of the neighboring base station 1; (x ₃ , y ₃ ) is The position of the neighboring base station 2, c is the speed of light; RSTD ₁ is the time difference between the PRS sent by the serving base station and the neighboring base station 1 by the user equipment; and the RSTD ₂ is the time difference of the PRS sent by the user equipment and the neighboring base station 2 by the user equipment.

The location information of the at least two neighboring base stations 1 and 2 of the serving base station may be pre-stored in the serving base station, or may be acquired by the serving base station in communication with at least two neighboring base stations 1 and 2.

It can be understood that the above formula is a calculation formula applicable to the positioning of the user equipment by the serving base station and two neighboring base stations. When the serving base station and the three or more neighboring base stations locate the user equipment, the basis of the above formula may be used. Add the formula in a similar way, so I won't go into details here.

When the location information is location information (longitude, latitude information) of the user equipment, the serving base station determines the location where the user equipment is currently located according to the received location information.

After the serving base station determines the current location information of the user equipment, the service, the application, the road condition, and the like are pushed to the user equipment.

In the above solution, the user equipment communicates with the base station to obtain the information of the base station, and obtains the positioning information according to the information of the base station, and sends the positioning information to the serving base station, so that the serving base station locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

Please refer to FIG. 4. FIG. 4 is a flowchart of another embodiment of the positioning method of the present application. This embodiment is described from the perspective of a user equipment, which may be a mobile phone, a PAD, or an in-vehicle device. The positioning method of this embodiment includes the following steps:

S201: The user equipment communicates with the base station to obtain information about the base station.

When the user equipment needs to be located, the user equipment communicates with the serving base station, and the user equipment sends the positioning request information to the serving base station, so that after receiving the positioning request information, the serving base station sends the positioning reference signal PRS to the user equipment and at least to the serving base station. Two neighboring base stations broadcast Bit request information to trigger at least two neighboring base stations of the serving base station to send a PRS to the user equipment.

The PRS includes at least a period, and the PRS has a one-to-one correspondence with the base station. The PRS is a periodic broadcast signal, and the period of the PRS may be 160 ms or 320 ms or 640 ms or 1280 ms. However, the period of the PRS may be other values, which is not limited herein. When the user equipment moves, the smaller the period of the PRS, the more accurate the location information of the user equipment obtained according to the PRS. The PRS periods of the base stations participating in the positioning are the same.

The PRS may also include an identity of the base station, and the identity of the base station is used to identify the base station transmitting the PRS.

It can be understood that the user equipment can communicate with at least two neighboring base stations of the serving base station and the serving base station, and send positioning request information to the serving base station and the at least two neighboring base stations of the serving base station, respectively, to enable the serving base station and the service. The at least two neighboring base stations of the base station respectively broadcast the PRS after receiving the positioning request information; the at least two neighboring base stations of the serving base station and the serving base station may also automatically broadcast the PRS, which is not limited herein.

The user equipment acquires information of the base station, where the base station includes at least two neighboring base stations of the serving base station and the serving base station, and the information of the base station includes at least information of the positioning reference signal of the serving base station and at least two neighboring base stations of the serving base station. The information of the base station is transmitted at the MAC layer in the data link layer.

It may be understood that the information of the base station may include at least information of the positioning reference signal of the serving base station and the at least two neighboring base stations of the serving base station, and may further include location information of the serving base station and the at least two neighboring base stations of the serving base station, and may further include Timing deviation of at least two neighboring base stations relative to the serving base station.

S202: Calculate time difference information of any two positioning reference signals respectively according to information of the positioning reference signals included in the information of the base station.

For example, the user equipment acquires the time of receiving the PRS sent by the serving base station according to the information of the PRS of the serving base station included in the information of the base station, and the information of the PRS of the at least two neighboring base stations of the serving base station, and receives at least two neighboring base stations. The time of the transmitted PRS is calculated separately for the arrival time difference RSTD of the positioning reference signal received by any two base stations.

The RSTD belongs to the positioning information, and the RSTD is the time difference between the positioning reference signals received by the user equipment of any two base stations.

The number of pieces of RSTD information is at least two or more. The information of the RSTD includes the identifiers of any two base stations corresponding to the RSTD value and the RSTD value. The identity of the base station may include the number of the base station and any The order of the two base stations.

Optionally, the positioning information includes at least a time difference of any two positioning reference signals, a number of at least two neighboring base stations of the serving base station, and a sequence of numbers. The time difference between any two positioning reference signals is the time difference of the positioning reference signal received by the user equipment from any two base stations, that is, RSTD. The number of time differences of any two positioning reference signals is plural. The number of the at least two neighboring base stations of the serving base station and the sequence of the numbers are used to identify the sequence of the two base stations in the same time period.

Since the positioning technology of the 3rd Generation Partnership Project 3GPP clearly demonstrates that 16 base stations can approximate the theoretical optimal value, 9 base stations can have extremely ideal positioning effects. The location information needs to indicate that the sequence of the base station is at most 1~n*(n-1)/2, that is, 16*(16-1)/2=120, and 7 bits (bits) (2 ⁷ = 128) are needed. The difference relationship between any two base stations is shown, and 1 bit is added to indicate the order before and after, that is, who is ahead of them, a total of 8 bits can indicate all relationships. Therefore, a maximum of 8 bits in the positioning information can indicate the relationship between the 16 base stations.

The following is an example of six base stations to illustrate the base station sequence:

Base station number	1	2	3	4	5	6
							Difference number relative to base station 1		1	2	3	4	5
Difference number relative to base station 2			6	7	8	9
							Difference number relative to base station 3				10	11	12
Difference number relative to base station 4					13	14
							Difference number relative to base station 5						15

As shown in the above table, the numbers of the six base stations are 1, 2, 3, 4, 5, and 6, respectively. It is assumed that the base station 1 is the serving base station 220, and the base station 2-6 is the neighboring base station of the base station 1. The order of the six base stations is from 1 to 15.

S203: Correct time difference information of the received any two positioning reference signals according to timing deviations of the at least two neighboring base stations with respect to the serving base station.

The user equipment acquires a timing offset of at least two neighboring base stations included in the information of the base station with respect to the serving base station.

The timing deviation of the at least two neighboring base stations relative to the serving base station may be input by the user through the setting interface, or may be obtained by the serving base station and the neighboring base station, or may be, by the user equipment, according to the serving base station and the at least two neighboring parties of the serving base station. The PRS information of the base station contains The period, time offset calculates the timing offset of at least two neighboring base stations relative to the serving base station. There are no restrictions here.

The time offset is the offset from the standard reference time. When the time offset corresponding to each of the serving base station and the at least two neighboring base stations is the same, the serving base station and the at least two neighboring base stations are synchronously operated, and there is no timing offset. When there is a difference in the time offset corresponding to each of the serving base station and the at least two neighboring base stations, the serving base station and the at least two neighboring base stations are not synchronized, and there is a timing offset.

After acquiring the information of the time difference RSTD of the positioning reference signals of any two base stations and the timing deviation of the at least two neighboring base stations with respect to the serving base station, the user equipment respectively corrects the RSTD according to the timing deviation of the at least two neighboring base stations with respect to the serving base station. information.

For example, when the timing deviation of the neighboring base station 1 relative to the serving base station is a delay of 5 ms, based on the RSTD of the serving base station and the neighboring base station 1.

Plus 5ms to correct the RSTD information of the serving base station and the neighboring base station 1. When the timing deviation of the neighboring base station 2 relative to the serving base station is 5 ms ahead, based on the RSTD of the serving base station and the neighboring base station 2

The 5 ms is subtracted to correct the information of the RSTD of the serving base station and the neighboring base station 2.

The user equipment corrects each RSTD as described above.

When the information of the base station includes at least the information of the positioning reference signal of the serving base station and the at least two neighboring base stations of the serving base station, the positioning information that needs to be sent to the serving base station is information that receives the time difference RSTD of the positioning reference signals of any two base stations. After the user equipment performs step S203, step S204 is performed.

When the information of the base station includes at least the information of the positioning reference signal of the serving base station and the at least two neighboring base stations of the serving base station, the serving base station, and the location information of the at least two neighboring base stations of the serving base station, the positioning information that needs to be sent to the serving base station is the user. Location information of the device. After the user equipment performs step S203, step S205 is performed.

S204: Send time difference information of the multiple positioning reference signals to the serving base station.

When the information of the base station includes at least the information of the positioning reference signal of the serving base station and the at least two neighboring base stations of the serving base station, the positioning information that needs to be sent to the serving base station includes at least the time difference RSTD information of the plurality of positioning reference signals. Positioning a plurality of reference signals for the time difference between the serving base station information to locate the user equipment.

After correcting the RSTD, the user equipment sends time difference information of multiple positioning reference signals to The serving base station is configured to enable the serving base station to determine the current location of the user equipment according to the time difference of the plurality of positioning reference signals after receiving the time difference information of the plurality of positioning reference signals, to locate the user equipment.

The user equipment may send multiple RSTDs in the positioning information to the serving base station by using a MAC buffer status report BSR, to notify the serving base station of the number of RSTDs to be acquired by the serving base station by using a total count value. The BSR is an existing message at the MAC layer.

After the user equipment sends an RSTD to the serving base station, the number of RSTDs that exist in the current positioning is indicated by the extended field of 1 bit. The number of RSTDs ranges from 1 to n*(n-1)/2, where n is the number of base stations participating in the positioning. The number of RSTDs is related to the number of base stations participating in the positioning, and the base stations participating in the positioning include the serving base station and at least two neighboring base stations of the serving base station. The more base stations participating in the positioning, the more the number of RSTDs.

Since the positioning technology of the 3rd Generation Partnership Project 3GPP clearly demonstrates that 16 base stations can approximate the theoretical optimal value, 9 base stations can have extremely ideal positioning effects. Therefore, the number of RSTDs ranges from 1 to 16*(16-1)/2=120, and up to 7 bits (2 ⁷ =128) is required, which means the number of all RSTDs, and 1≤ indicates the RSTD. The number of bits in the number is ≤ 7.

After the serving base station obtains multiple RSTDs, it is based on the following formula:

The location information of the user device can be determined.

Where (x, y) is the location of the user equipment to be measured; (x ₁ , y ₁ ) is the location of the serving base station; (x ₂ , y ₂ ) is the location of the neighboring base station 1; (x ₃ , y ₃ ) It is the position of the neighboring base station 2, where c is the speed of light; the RSTD ₁ is the time difference between the PRS sent by the serving base station and the neighboring base station 1 by the user equipment; and the RSTD ₂ is the time difference of the PRS sent by the user equipment and the neighboring base station 2 by the user equipment.

The location information of the at least two neighboring base stations of the serving base station may be pre-stored in the serving base station, or may be acquired by the serving base station in communication with at least two neighboring base stations.

It can be understood that the above formula is a calculation formula applicable to the positioning of the user equipment by the serving base station and two neighboring base stations. When the serving base station and the three or more neighboring base stations locate the user equipment, the basis of the above formula may be used. Add the formula in a similar way, so I won't go into details here.

S205: According to the serving base station and bits of at least two neighboring base stations of the serving base station The information is calculated to calculate a distance between the serving base station and at least two neighboring base stations.

When the information of the base station includes at least the information of the positioning reference signal of the serving base station and the at least two neighboring base stations of the serving base station, the serving base station, and the location information of the at least two neighboring base stations of the serving base station, the user equipment acquires the serving base station from the serving base station. Location information, location information of at least two neighboring base stations.

The user equipment calculates the distance between the serving base station and the at least two neighboring base stations according to the location information of the serving base station and the at least two neighboring base stations of the serving base station.

The location information of the at least two neighboring base stations is pre-stored in the serving base station, or is obtained by the serving base station in advance communication with at least two neighboring base stations.

S206: Determine location information of the user equipment according to the time difference information of the positioning reference signal and the distance between the serving base station and the at least two neighboring base stations.

After obtaining the information of all the RSTDs and the distance between the serving base station and the at least two neighboring base stations to determine the location information of the user equipment, the user equipment determines the location of the user equipment according to the information of all the RSTDs, the distance between the serving base station and the at least two neighboring base stations. information.

The location information is a location of the user equipment relative to the serving base station. The location information includes longitude coordinates and latitude coordinates of the current location of the user equipment. The longitude and latitude coordinates can be represented by 24 bits, respectively.

The formula of the user equipment according to the location information of the user equipment is as follows:

(x, y) is the location of the user equipment to be measured; (x ₁ , y ₁ ) is the location of the serving base station; (x ₂ , y ₂ ) is the location of the neighboring base station 1; (x ₃ , y ₃ ) is the proximity The location of the base station 2, c is the speed of light; the RSTD ₁ is the time difference between the PRS sent by the serving base station and the neighboring base station 1 by the user equipment; and the RSTD ₂ is the time difference between the PRS sent by the serving base station and the neighboring base station ₂ by the user equipment.

The location information of the at least two neighboring base stations of the serving base station may be pre-stored in the serving base station, or may be acquired by the serving base station in communication with at least two neighboring base stations.

It can be understood that the above formula is a calculation formula applicable to the positioning of the user equipment by the serving base station and two neighboring base stations. When the serving base station and the three or more neighboring base stations locate the user equipment, the basis of the above formula may be used. Add the formula in a similar way, here Do not repeat them.

The user equipment may cyclically perform steps S201-S203 and S205-S206, and may calculate real-time location information of the user equipment according to different PRS information to perform real-time positioning on the user equipment.

The location information may include longitude coordinates and latitude coordinates of the current location of the user equipment. The longitude and latitude coordinates can be represented by 24 bits, respectively.

It can be understood that, in another implementation manner, after calculating two adjacent location information according to information about two adjacent periods of PRS, the user equipment may further calculate two pieces according to two adjacent location information. The position difference between adjacent positions.

For example, after the user equipment root calculates the position information corresponding to the PRS of two adjacent periods according to the foregoing method, the position difference between two adjacent positions is calculated according to the two adjacent position information.

S207: Send the location information to the serving base station.

After determining the location information of the user equipment, the user equipment sends the location information to the serving base station, so that the serving base station determines the current location of the user equipment according to the location information of the user equipment. Location information The current location information of the user equipment. When the location information can be the current location information, the location of the two adjacent locations is poor.

When the location information is represented by the longitude and latitude information, the user equipment sends the longitude and latitude information to the serving base station, so that the serving base station can determine the current location of the user equipment according to the longitude and latitude information of the user equipment and the data stored by the serving base station. The location.

Further, the user equipment also sends the location difference between two adjacent locations of the user equipment to the serving base station, so that the serving base station can according to the position difference of two adjacent locations, the previous one of the two adjacent location information. The location information and the location information of the serving base station determine the current location information of the user equipment.

It can be understood that after the serving base station determines the current location information of the user equipment, the service, application, road condition, and the like can be pushed to the user equipment.

In the above solution, the user equipment communicates with the base station to obtain the information of the base station, and obtains the positioning information according to the information of the base station, and sends the positioning information to the serving base station, so that the serving base station locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

The user equipment may also send a location difference between two adjacent location information to the serving base station, so that the serving base station determines the current location information of the user equipment according to the location difference between the two adjacent locations, because the two adjacent locations are transmitted. The positional difference of information requires less transmission resources, which can speed up transmission efficiency and make positioning more accurate.

Please refer to FIG. 5. FIG. 5 is a flowchart of still another embodiment of the positioning method of the present application. This embodiment is described from the perspective of a serving base station, where the serving base station is used to locate the user equipment, and the user equipment may be a mobile phone, a PAD, or an in-vehicle device. The serving base stations participating in the positioning have at least two neighboring base stations. The serving base station can communicate with at least two neighboring base stations of the serving base station, and at least two neighboring base stations of the serving base station can respectively communicate with the user equipment. The positioning method of this embodiment includes the following steps:

S301: After receiving the positioning request information sent by the user equipment, the serving base station broadcasts the positioning reference signal.

When the user equipment needs to be located, the user equipment communicates with the serving base station, and the user equipment sends the positioning request information to the serving base station.

After receiving the positioning request information, the serving base station starts the positioning function and sends the positioning reference signal PRS to the user equipment. The serving base station may also broadcast positioning request information to at least two neighboring base stations of the serving base station to trigger at least two neighboring base stations of the serving base station to send the PRS to the user equipment.

The PRS includes at least a period, and the PRS has a one-to-one correspondence with the base station. The PRS is a periodic broadcast signal, and the period of the PRS may be 160 ms or 320 ms or 640 ms or 1280 ms. However, the period of the PRS may be other values, which is not limited herein. When the user equipment moves, the smaller the period of the PRS, the more accurate the location information of the user equipment obtained according to the PRS. The PRS periods of the base stations participating in the positioning are the same.

The PRS may also include an identity of the base station, and the identity of the base station is used to identify the base station transmitting the PRS.

It can be understood that the PRS may be sent by receiving the positioning request information sent by the user equipment, or may be automatically broadcasted. The at least two neighboring base stations of the serving base station may also automatically broadcast the PRS, which is not limited herein.

S302: Receive location information sent by the user equipment, and locate the user equipment according to the location information, where the location information is that the user equipment is based on at least two of the serving base station and the serving base station. The neighboring base stations send positioning reference signals, location information of the serving base station, and at least two neighboring base stations of the serving base station.

The user equipment acquires information of the base station, and acquires positioning information according to the information of the base station. The base station includes at least two neighboring base stations of the serving base station and the serving base station, and the information of the base station includes at least information of the positioning reference signals of the serving base station and at least two neighboring base stations of the serving base station. The information of the base station is transmitted at the MAC layer in the data link layer.

When the user equipment determines the location information and sends the location information to the serving base station, the serving base station receives the location information sent by the user equipment.

The location information is determined by the user equipment according to the information of the PRS of the serving base station included in the information of the base station, and the information of the PRSs of the at least two neighboring base stations of the serving base station.

The positioning information is information required by the serving base station to locate the user equipment, so that the serving base station can determine the current location of the user equipment according to the positioning information.

The positioning information may be a plurality of reference signal arrival time differences RSTD, and the RSTD is a time difference between the positioning reference signals received by the user equipment of any two base stations. The location information may also be location information of the user equipment (longitude, latitude information, or location difference between two adjacent locations), but is not limited thereto, and may be other location-related information.

After obtaining the positioning information, the serving base station locates the user equipment according to the positioning information.

When the location information is the RSTD, the user equipment may send multiple RSTDs in the location information to the serving base station through a MAC Buffer Status Report (BSR), to notify the serving base station that the location needs to be acquired by using a total count value. The number of RSTDs. The BSR is an existing message at the MAC layer.

After the user equipment sends an RSTD to the serving base station, the number of RSTDs that exist in the current positioning is indicated by the extended field of 1 bit. The number of RSTDs ranges from 1 to n*(n-1)/2, where n is the number of base stations participating in the positioning. The number of RSTDs is related to the number of base stations participating in the positioning, and the base stations participating in the positioning include the serving base station and at least two neighboring base stations of the serving base station. The more base stations participating in the positioning, the more the number of RSTDs.

Since the positioning technology of the 3rd Generation Partnership Project 3GPP clearly demonstrates that 16 base stations can approximate the theoretical optimal value, 9 base stations can have extremely ideal positioning effects. Therefore, the number of RSTDs ranges from 1 to 16*(16-1)/2=120, and up to 7 bits (2 ⁷ =128) is required, which means the number of all RSTDs, and 1≤ indicates the RSTD. The number of bits in the number is ≤ 7.

After the serving base station obtains multiple RSTDs, according to the following formula

Determine the location information of the user device.

Where (x, y) is the location of the user equipment 210 to be measured; (x ₁ , y ₁ ) is the location of the serving base station; (x ₂ , y ₂ ) is the location of the neighboring base station 1; (x ₃ , y ₃ ) is the position of the neighboring base station 2, c is the speed of light; RSTD ₁ is the time difference between the PRS sent by the serving base station and the neighboring base station 1 by the user equipment; and the RSTD ₂ is the time difference of the PRS sent by the user equipment and the neighboring base station 2 by the user equipment.

The location information of at least two neighboring base stations 1 and 2 of the serving base station may be pre-stored in the serving base station, or may be acquired by the serving base station in communication with at least two neighboring base stations 1 and 2.

It can be understood that the above formula is a calculation formula applicable to the positioning of the user equipment by the serving base station and two neighboring base stations. When the serving base station and the three or more neighboring base stations locate the user equipment, the basis of the above formula may be used. Add the formula in a similar way, so I won't go into details here.

Further, when the serving base station receives the location information sent by the user equipment as location information (longitude, latitude information) of the user equipment, the serving base station determines, according to the received location information, the location where the user equipment is currently located.

Further, the serving base station further receives the location difference sent by the user equipment, and determines the location information of the user equipment according to the location difference; wherein the location difference is a difference between the two adjacent locations of the user equipment, and the location difference is determined by the user equipment according to the two The adjacent position information is calculated.

For example, after the user equipment sends the location difference between two adjacent locations to the serving base station, the serving base station receives the location difference between two adjacent locations sent by the user equipment, according to the location difference between the two adjacent locations, The previous location information of the two adjacent location information and the location information of the serving base station determine the current location information of the user equipment.

After the serving base station determines the current location information of the user equipment, the service, the application, the road condition, and the like are pushed to the user equipment.

In the above solution, the serving base station receives the positioning information sent by the user equipment, and locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

When the location information is the location information sent by the user equipment, or the location difference between two adjacent locations, the transmission location information or the location difference between two adjacent locations requires less transmission resources, which can speed up transmission efficiency. , positioning is more precise.

Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of an embodiment of a positioning device of the present application. The positioning device of this embodiment is a user equipment, and the user equipment may be a mobile phone, a PAD, or an in-vehicle device. The serving base stations participating in the positioning have at least two neighboring base stations. The modules included in this embodiment are used to perform the steps in the embodiments corresponding to FIG. 3 and FIG. 3 . For details, refer to the related descriptions of the steps in the embodiment corresponding to FIG. 3 and FIG. 3 , and details are not described herein. The positioning device of this embodiment includes a first acquiring module 610, a second acquiring module 620, and a sending module 630.

The first obtaining module 610 is configured to acquire information about the base station, where the base station includes at least two neighboring base stations of the serving base station and the serving base station, and the information of the base station includes at least information of the positioning reference signal of the serving base station and the at least two neighboring base stations of the serving base station. .

For example, the first acquiring module 610 acquires information of the base station, where the base station includes at least two neighboring base stations of the serving base station and the serving base station, and the information of the base station includes at least information of the positioning reference signal of the serving base station and at least two neighboring base stations of the serving base station. . The first obtaining module 610 sends the acquired information of the base station to the second acquiring module 620.

The second obtaining module 620 is configured to receive the information of the base station that is sent by the first acquiring module 610, and obtain the positioning information according to the information of the base station that is acquired by the first acquiring module 610. The location information may include at least a time difference of receiving any two positioning reference signals, a number of at least two neighboring base stations of the serving base station, and a sequence of numbers.

For example, the second obtaining module 620 receives the information of the base station sent by the first acquiring module 610, and acquires the positioning information according to the information of the base station. The location information may include at least a time difference of receiving any two positioning reference signals, a number of at least two neighboring base stations of the serving base station, and a sequence of numbers. The second obtaining module 620 sends the obtained positioning information to the sending module 630.

The sending module 630 is configured to receive the positioning information sent by the second acquiring module 620, and send the positioning information acquired by the second acquiring module 620 to the serving base station, where the positioning information is used by the serving base station to locate the user equipment.

For example, the sending module 630 is configured to receive the positioning information sent by the second acquiring module 620, and send the positioning information to the serving base station, where the positioning information is used by the serving base station to locate the user equipment.

In the above solution, the user equipment communicates with the base station to obtain information of the base station, and according to the base station The information acquires the positioning information, and sends the positioning information to the serving base station, so that the serving base station locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of another embodiment of the positioning device of the present application. The positioning device of this embodiment is a user equipment, and the user equipment may be a mobile phone, a PAD, or an in-vehicle device. The serving base stations participating in the positioning have at least two neighboring base stations. The modules included in this embodiment are used to perform the steps in the embodiments corresponding to FIG. 4 and FIG. 4 . For details, refer to the related descriptions of the steps in the embodiment corresponding to FIG. 4 and FIG. 4 , and details are not described herein. The positioning device of this embodiment includes a first obtaining module 710, a second acquiring module 720, a calibration module 730, a calculating module 740, and a sending module 750.

The first obtaining module 710 is configured to acquire information about the base station, where the base station includes at least two neighboring base stations of the serving base station and the serving base station, where the information of the base station includes at least information of the positioning reference signal of the serving base station and at least two neighboring base stations of the serving base station. .

Further, the information of the base station further includes location information of the serving base station and at least two neighboring base stations of the serving base station.

Further, the information of the base station further includes a timing offset of the at least two neighboring base stations with respect to the serving base station.

For example, the first obtaining module 710 acquires information of the base station, where the base station includes at least two neighboring base stations of the serving base station and the serving base station, and the information of the base station includes at least information of the positioning reference signal of the serving base station and at least two neighboring base stations of the serving base station. . The information of the base station may further include location information of the serving base station and at least two neighboring base stations of the serving base station and/or timing offsets of the at least two neighboring base stations with respect to the serving base station.

The first obtaining module 710 sends the acquired information of the base station to the second obtaining module 720 and the calibration module 730.

The second obtaining module 720 is configured to receive the information about the base station sent by the first acquiring module 710, and calculate the time difference between the received two positioning reference signals according to the information of the positioning reference signal included in the information of the base station acquired by the first acquiring module 710. information.

For example, the second obtaining module 720 receives the information of the base station that is sent by the first acquiring module 710, and the information of the positioning reference signal included in the information of the base station acquired by the first acquiring module 710. Do not calculate the time difference information of any two positioning reference signals received.

Further, the second obtaining module 720 is configured to receive the information acquiring positioning information of the base station that is sent by the first acquiring module 710, where the positioning information includes at least a time difference of receiving any two positioning reference signals, and a number of at least two neighboring base stations of the serving base station. And the order of the numbers.

For example, the second obtaining module 720 receives the information acquiring positioning information of the base station sent by the first acquiring module 710, where the positioning information includes at least a time difference of receiving any two positioning reference signals, a number of the at least two neighboring base stations of the serving base station, and a number. Before and after.

The second obtaining module 720 sends the calculated time difference information or positioning information of the plurality of positioning reference signals to the calibration module 730.

The calibration module 730 is configured to receive the information of the base station sent by the first acquiring module 710. When the information of the base station acquired by the first acquiring module 710 includes the timing deviation of the at least two neighboring base stations with respect to the serving base station, the calibration module 730 obtains according to the first acquiring. The time difference information of the plurality of positioning reference signals calculated by the second obtaining module 720 is corrected by the timing deviation of the at least two neighboring base stations acquired by the module 710 with respect to the serving base station.

For example, the calibration module 730 receives the information of the base station sent by the first acquiring module 710. When the information of the base station acquired by the first acquiring module 710 includes the timing deviation of the at least two neighboring base stations with respect to the serving base station, the calibration module 730 obtains the first acquisition according to the first. The time difference information of the plurality of positioning reference signals calculated by the second obtaining module 720 is corrected by the timing deviation of the at least two neighboring base stations acquired by the module 710 with respect to the serving base station.

The calibration module 730 sends the time difference information of the modified plurality of positioning reference signals to the second acquiring module 720.

When the information of the base station acquired by the first acquiring module 710 further includes the location information of the serving base station and the at least two neighboring base stations of the serving base station, the second obtaining module 720 is configured to calculate, according to the information of the positioning reference signal acquired by the first acquiring module 710. Receiving time difference information of any two positioning reference signals; and calculating a distance between the serving base station and the at least two neighboring base stations according to the serving base station acquired by the first acquiring module 710 and the location information of the at least two neighboring base stations of the serving base station; And determining location information of the user equipment according to the time difference information of the positioning reference signal, the distance between the serving base station and the at least two neighboring base stations, where the location information is a location of the user equipment relative to the serving base station.

For example, the information of the base station acquired by the first obtaining module 710 further includes a serving base station and a service. When the location information of the at least two neighboring base stations of the base station is used, the second obtaining module 720 calculates the time difference information of the received two positioning reference signals according to the information of the positioning reference signal acquired by the first acquiring module 710; Obtaining, by the obtained serving base station and the location information of the at least two neighboring base stations of the serving base station, a distance between the serving base station and the at least two neighboring base stations; and determining the user equipment according to the time difference information of the positioning reference signal and the distance between the serving base station and the at least two neighboring base stations Location information, where the location information is a location of the user equipment relative to the serving base station.

The second acquisition module 720 transmits the calculated location information to the location difference calculation module 740 and the transmission module 750.

The position difference calculation module 740 is configured to receive the location information sent by the second obtaining module 720, and calculate a position difference between two adjacent locations according to the two adjacent location information calculated by the second obtaining module 720. For example, the position difference calculation module 740 receives the position information sent by the second acquisition module 720, and calculates the position difference of two adjacent positions according to the two adjacent position information calculated by the second acquisition module 720. The position difference calculation module 740 transmits the calculated position difference of two adjacent positions to the transmitting module 750.

The sending module 750 is configured to send the time difference information or the positioning information of the multiple positioning reference signals calculated by the second acquiring module 720 to the serving base station, and the time difference information or the positioning information of the multiple positioning reference signals are used by the serving base station to locate the user equipment. .

For example, the sending module 750 receives the time difference information or the positioning information of the plurality of positioning reference signals sent by the second acquiring module 720, and sends the time difference information or the positioning information of the plurality of positioning reference signals calculated by the second obtaining module 720 to the serving base station. The time difference information or the positioning information of the plurality of positioning reference signals is used by the serving base station to locate the user equipment.

The sending module 750 is configured to send the location information determined by the second obtaining module 720 to the serving base station. For example, the sending module 750 receives the location information sent by the second obtaining module 720, and sends the location information determined by the second obtaining module 720 to the serving base station.

The sending module 750 is configured to send the location difference between two adjacent locations calculated by the location difference calculation module 740 to the serving base station, where the location difference between the two adjacent locations is used by the serving base station to determine the location information of the user equipment. For example, the sending module 750 receives the position difference of two adjacent positions sent by the position difference calculating module 740, and sends the position difference of the two adjacent positions calculated by the position difference calculating module 740 to the serving base station, where two The position difference of adjacent positions is used for service The base station determines the location information of the user equipment.

In the above solution, the user equipment communicates with the base station to obtain the information of the base station, and obtains the positioning information according to the information of the base station, and sends the positioning information to the serving base station, so that the serving base station locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

The user equipment may also send a location difference between two adjacent location information to the serving base station, so that the serving base station determines the current location information of the user equipment according to the location difference between the two adjacent locations, because the two adjacent locations are transmitted. The positional difference of information requires less transmission resources, which can speed up transmission efficiency and make positioning more accurate.

When the location information is sent to the serving base station for the location difference of the two adjacent location information of the user equipment, the serving base station can determine the current location information of the user equipment according to the location difference between the two adjacent location information, because the two phases are transmitted. The position difference of the adjacent location information requires less transmission resources, can speed up transmission efficiency, and is more accurate in positioning.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of still another embodiment of the positioning device of the present application. The positioning device of the present embodiment is a serving base station, and each module included in this embodiment is used to execute each step in the embodiment corresponding to FIG. 5 and FIG. 5 . For details, refer to the steps in the embodiment corresponding to FIG. 5 and FIG. 5 . The relevant description is not described here. The positioning device of this embodiment includes a receiving module 810, a broadcasting module 820, and a positioning module 830.

The receiving module 810 is configured to receive positioning request information sent by the user equipment. For example, the receiving module 810 receives the positioning request information sent by the user equipment. The receiving module 810 transmits the notification information to the broadcast module 820 upon receiving the positioning request information.

The broadcast module 820 is configured to receive the notification information sent by the receiving module 810, and broadcast the positioning reference signal when the receiving module 810 receives the positioning request information sent by the user equipment. For example, the broadcast module 820 receives the notification information sent by the receiving module 810, and broadcasts the positioning reference signal when the receiving module 810 receives the positioning request information sent by the user equipment.

The receiving module 810 is further configured to receive the positioning information sent by the user equipment, where the positioning information is that the user equipment sends the positioning reference signal, the serving base station, and the at least two neighboring base stations of the serving base station according to the serving base station and the at least two neighboring base stations of the serving base station. Location information is determined.

For example, the receiving module 810 receives the positioning information sent by the user equipment, where the positioning information The user equipment determines, according to the location information of the serving base station and the at least two neighboring base stations of the serving base station, the location reference signal, the serving base station, and the at least two neighboring base stations of the serving base station. The receiving module 810 transmits the positioning information to the positioning module 830.

Further, the receiving module 810 is further configured to receive a location difference sent by the user equipment, where the location difference is a difference between the two adjacent locations of the user equipment, where the location difference is calculated by the user equipment according to two adjacent location information. . For example, the receiving module 810 receives the location difference sent by the user equipment, where the location difference is the difference between the two adjacent locations of the user equipment, and the location difference is calculated by the user equipment according to two adjacent location information. The receiving module 810 transmits the position difference to the positioning module 830.

The positioning module 830 is configured to receive the positioning information sent by the receiving module 810, and locate the user equipment according to the positioning information. For example, the positioning module 830 receives the positioning information sent by the receiving module 810, and locates the user equipment according to the positioning information.

Further, when the receiving module 810 receives the position difference sent by the user equipment, the positioning module 830 is further configured to receive the position difference sent by the receiving module 810, and determine the location information of the user equipment according to the position difference received by the receiving module 810. For example, when the receiving module 810 receives the position difference sent by the user equipment and sends the position difference to the positioning module 830, the positioning module 830 receives the position difference sent by the receiving module 810, and determines the user equipment according to the position difference received by the receiving module 810. location information.

In the above solution, the serving base station receives the positioning information sent by the user equipment, and locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

When the location information is the location information sent by the user equipment, or the location difference between two adjacent locations, the transmission location information or the location difference between two adjacent locations requires less transmission resources, which can speed up transmission efficiency. , positioning is more precise.

Referring to FIG. 9, FIG. 9 is a schematic structural diagram of still another embodiment of a positioning device of the present application. The positioning device of this embodiment is a user equipment, and the user equipment may be a mobile phone, a PAD, or an in-vehicle device. The serving base stations participating in the positioning have at least two neighboring base stations. The positioning device of this embodiment includes a receiver 910, a processor 920, a transmitter 930, a read only memory 940, a random access memory 950, and a bus 960.

Receiver 910 is configured to receive data.

The processor 920 controls the operation of the positioning device, which may also be referred to as a CPU (Central Processing Unit). Processor 920 may be an integrated circuit chip with signal processing capabilities. The processor 920 can also be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. . The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

Transmitter 930 is used to transmit data.

The memory can include read only memory 940 and random access memory 950 and provides instructions and data to processor 920. A portion of the memory may also include non-volatile random access memory (NVRAM).

The various components of the positioning device are coupled together by a bus 960, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. However, for clarity of description, various buses are labeled as bus 960 in the figure.

The memory stores the following elements, executable modules or data structures, or a subset of them, or their extended set:

Operation instructions: include various operation instructions for implementing various operations.

Operating system: Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.

In the embodiment of the present invention, the processor 920 performs the following operations by calling an operation instruction stored in the memory, which can be stored in the operating system:

The processor 920 is configured to acquire information of the base station, and obtain positioning information according to the information of the base station, where the base station includes a serving base station and at least two neighboring base stations of the serving base station, where the information of the base station includes at least a serving base station and Information of a positioning reference signal of at least two neighboring base stations of the serving base station;

The processor 920 is configured to control the transmitter 930 to send the positioning information acquired by the processor 920 to the serving base station, where the positioning information is used by the serving base station to locate the user equipment.

Optionally, the processor 920 is configured to separately calculate time difference information that is received by any two of the positioning reference signals according to the information of the positioning reference signal included in the information of the base station; The transmitter is configured to send time difference information of the plurality of the positioning reference signals calculated by the processor to the serving base station, where time difference information of the plurality of positioning reference signals is used by the serving base station to the user The device is positioned.

Optionally, the information about the base station acquired by the processor 920 further includes location information of the serving base station and at least two neighboring base stations of the serving base station;

The processor 920 is configured to calculate, according to information about the positioning reference signal included in the information of the base station, time difference information that is received by any two of the positioning reference signals, and at least two according to the serving base station and the serving base station. Calculating, by the location information of the neighboring base station, a distance between the serving base station and the at least two neighboring base stations; and determining, according to the time difference information of the positioning reference signal, the distance between the serving base station and the at least two neighboring base stations, determining the user equipment Location information, where the location information is a location of the user equipment relative to the serving base station;

The processor 920 is configured to control the transmitter 930 to send the location information determined by the processor 920 to the serving base station.

Optionally, the processor 920 is further configured to calculate a position difference of the two adjacent locations according to the two adjacent location information, and to control the transmitter 930 to calculate the processor 920. The location difference is sent to the serving base station, wherein the location difference is used by the serving base station to determine location information of the user equipment.

Optionally, the positioning information acquired by the processor 920 includes at least a time difference of receiving any two of the positioning reference signals, a number of at least two neighboring base stations of the serving base station, and a sequence of the numbers.

Optionally, the information about the base station acquired by the processor 920 further includes a timing offset of the at least two neighboring base stations with respect to the serving base station; the processor 920 is further configured to use, according to the at least two neighboring base stations, the service The timing offset of the base station corrects the positioning information.

In the above solution, the user equipment communicates with the base station to obtain the information of the base station, and obtains the positioning information according to the information of the base station, and sends the positioning information to the serving base station, so that the serving base station locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

Referring to FIG. 10, FIG. 10 is a schematic structural diagram of still another embodiment of a positioning device of the present application. The positioning device in this embodiment is a serving base station, and the neighboring base stations of the serving base stations participating in the positioning are at least two. The positioning device of this embodiment includes a receiver 1010, a processor 1020, a transmitter 1030, a read only memory 1040, a random access memory 1050, and a bus 1060.

Receiver 1010 is for receiving data.

The processor 1020 controls the operation of the positioning device, and the processor 1020 may also be referred to as a CPU (Central Processing Unit). Processor 1020 may be an integrated circuit chip with signal processing capabilities. The processor 1020 can also be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. . The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

Transmitter 1030 is used to transmit data.

The memory can include read only memory 1040 and random access memory 1050 and provides instructions and data to processor 1020. A portion of the memory may also include non-volatile random access memory (NVRAM).

The various components of the positioning device are coupled together by a bus 1060, which may include, in addition to the data bus, a power bus, a control bus, a status signal bus, and the like. However, for clarity of description, various buses are labeled as bus 960 in the figure.

The memory stores the following elements, executable modules or data structures, or a subset of them, or their extended set:

Operation instructions: include various operation instructions for implementing various operations.

Operating system: Includes a variety of system programs for implementing various basic services and handling hardware-based tasks.

In the embodiment of the present invention, the processor 1020 performs the following operations by calling an operation instruction stored in the memory, which can be stored in the operating system:

The receiver 1010 is configured to receive positioning request information sent by the user equipment, and receive positioning information sent by the user equipment, where the positioning information is at least two according to the serving base station and the serving base station. And determining, by the neighboring base station, a location reference signal, the serving base station, and location information of at least two neighboring base stations of the serving base station;

The processor 1020 is configured to: when the receiver 1010 receives the positioning request information sent by the user equipment, broadcast the positioning reference signal; and when the receiver 1010 receives the positioning information sent by the user equipment, according to the The positioning information is used to locate the user equipment.

Optionally, the receiver 1010 is further configured to receive a location difference sent by the user equipment, where the location difference is a difference between the user equipments at two adjacent locations, where the location difference is by the user The device calculates the information according to the two adjacent location information;

The processor 1020 is further configured to determine location information of the user equipment according to the location difference received by the receiving module 1010.

In the above solution, the serving base station receives the positioning information sent by the user equipment, and locates the user equipment according to the positioning information. Since the user equipment communicates with the base station through the MAC layer and locates the user equipment, other devices are not required to forward the positioning related information, which can reduce the information delay time and achieve fast and accurate positioning.

When the location information is the location information sent by the user equipment, or the location difference between two adjacent locations, the transmission location information or the location difference between two adjacent locations requires less transmission resources, which can speed up transmission efficiency. , positioning is more precise.

In the several embodiments provided herein, it should be understood that the disclosed apparatus is used to implement the method, for example, the device embodiments described above are merely illustrative, for example, the modules or units Partitioning is only a logical function partitioning. In actual implementation, there may be another way of dividing. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

It will be clearly understood by those skilled in the art that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed. The internal structure of the device is divided into different functions Modules can be used to perform all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims (24)

1. A positioning method, characterized in that the method comprises:

   The user equipment acquires information of the base station, where the base station includes at least two neighboring base stations of the serving base station and the serving base station, and the information of the base station includes at least a positioning reference of the serving base station and at least two neighboring base stations of the serving base station. Signal information;

   Acquiring the positioning information according to the information of the base station, and transmitting the positioning information to the serving base station, where the positioning information is used by the serving base station to locate the user equipment.
2. The method according to claim 1, wherein the obtaining the positioning information according to the information of the base station and transmitting the positioning information to the serving base station comprises:

   Calculating time difference information of any two of the positioning reference signals respectively according to information of the positioning reference signal included in the information of the base station;

   The time difference information of the plurality of the positioning reference signals is sent to the serving base station, and the time difference information of the plurality of the positioning reference signals is used by the serving base station to locate the user equipment.
3. The method according to claim 1, wherein the information of the base station further comprises location information of the serving base station and at least two neighboring base stations of the serving base station;

   Obtaining the positioning information according to the information of the base station, and sending the positioning information to the serving base station includes:

   Calculating time difference information of any two of the positioning reference signals according to information of the positioning reference signal included in the information of the base station;

   Calculating a distance between the serving base station and at least two neighboring base stations according to location information of the serving base station and at least two neighboring base stations of the serving base station;

   Determining location information of the user equipment according to time difference information of the positioning reference signal, a distance between the serving base station and at least two neighboring base stations, and transmitting the location information to the serving base station, where the location information The location of the user equipment relative to the serving base station.
4. The method according to claim 3, after the step of determining the location information of the user equipment according to the time difference information of the positioning reference signal, the distance between the serving base station and the at least two neighboring base stations, The method further includes:

   Calculating a position difference of the two adjacent locations according to the two adjacent location information, and transmitting the location difference to the serving base station, where the location difference is used by the serving base station to determine Location information of the user equipment.
5. The method according to claim 1, wherein the positioning information comprises at least a time difference of receiving any two of the positioning reference signals, a number of at least two neighboring base stations of the serving base station, and the number Before and after the order.
6. The method according to any one of claims 1 to 5, wherein the information of the base station further comprises a timing deviation of the at least two neighboring base stations with respect to the serving base station;

   After the step of acquiring the positioning information according to the information of the base station, and before the step of transmitting the positioning information to the serving base station, the method further includes:

   And correcting the positioning information according to timing deviations of the at least two neighboring base stations with respect to the serving base station.
7. A positioning method, characterized in that the method comprises:

   After receiving the positioning request information sent by the user equipment, the serving base station broadcasts the positioning reference signal;

   Receiving the positioning information sent by the user equipment, and positioning the user equipment according to the positioning information, where the positioning information is that the user equipment is according to the serving base station and at least two neighboring parties of the serving base station. The base station transmits a positioning reference signal, location information of the serving base station, and at least two neighboring base stations of the serving base station.
8. The locating method according to claim 7, wherein after the step of receiving the positioning information sent by the user equipment and locating the user equipment according to the positioning information, the method further includes:

   Receiving a location difference sent by the user equipment, and determining location information of the user equipment according to the location difference; wherein the location difference is a difference between the two adjacent locations of the user equipment, where the location difference is The user equipment is calculated according to the two adjacent location information.
9. A positioning device, comprising: a first acquiring module, a second acquiring module, and a sending module;

   The first acquiring module is configured to acquire information of a base station, where the base station includes a serving base station and at least two neighboring base stations of the serving base station, where the information of the base station includes at least two serving base stations and the serving base station. Information of positioning reference signals of neighboring base stations;

   The second acquiring module is configured to acquire positioning information according to the information about the base station acquired by the first acquiring module;

   The sending module is configured to send the positioning information acquired by the second acquiring module to the serving base station, where the positioning information is used by the serving base station to locate the user equipment.
10. The device according to claim 9, wherein the second obtaining module is configured to calculate, according to the information of the positioning reference signal included in the information of the base station acquired by the first acquiring module, any two received a time difference information of the positioning reference signal, where the sending module is configured to send time difference information of the plurality of positioning reference signals calculated by the second acquiring module to the serving base station, where the multiple positioning reference The time difference information of the signal is used by the serving base station to locate the user equipment.
11. The device according to claim 9, wherein the information about the base station acquired by the first acquiring module further includes location information of the serving base station and at least two neighboring base stations of the serving base station;

    The second acquiring module is configured to calculate, according to information about the positioning reference signal acquired by the first acquiring module, time difference information that is received by any two of the positioning reference signals, and a service that is used according to the first acquiring module. Calculating, by the base station and location information of at least two neighboring base stations of the serving base station, a distance between the serving base station and at least two neighboring base stations; and using, according to the time difference information of the positioning reference signal, the serving base station and at least two The location information of the user equipment is determined by the distance of the neighboring base station, where the location information is a location of the user equipment relative to the serving base station;

    The sending module is configured to send the location information determined by the second acquiring module to the serving base station.
12. The device according to claim 11, wherein the device further comprises a position difference calculation module, wherein the position difference calculation module is configured to calculate according to two adjacent pieces of position information calculated by the second acquisition module a position difference between the two adjacent locations; the sending module is configured to send the location difference calculated by the location difference calculation module to the serving base station, where the location difference is used for the service The base station determines location information of the user equipment.
13. The apparatus according to claim 9, wherein the positioning information acquired by the second obtaining module comprises at least a time difference of receiving any two of the positioning reference signals, and at least two of the serving base stations. The number of the neighboring base station and the sequence of the number.
14. The device according to any one of claims 9 to 13, wherein the information of the base station acquired by the first acquiring module further comprises that the at least two neighboring base stations are opposite to the a timing offset of the serving base station; the apparatus further comprising a calibration module, the calibration module configured to correct the second according to a timing offset of the at least two neighboring base stations with respect to the serving base station acquired by the first acquiring module Get the positioning information determined by the module.
15. A positioning device, comprising: a receiving module, a broadcasting module, and a positioning module;

    The receiving module is configured to receive positioning request information sent by the user equipment, and to receive positioning information sent by the user equipment, where the positioning information is that the user equipment is according to the serving base station and the serving base station. Determining, by the at least two neighboring base stations, a location reference signal, location information of the serving base station, and at least two neighboring base stations of the serving base station;

    The broadcast module is configured to: when the receiving module receives the positioning request information sent by the user equipment, broadcast the positioning reference signal;

    The positioning module is configured to locate the user equipment according to the positioning information when the receiving module receives the positioning information sent by the user equipment.
16. The apparatus according to claim 15, wherein the receiving module is further configured to receive a location difference sent by the user equipment, where the location difference is a difference between the user equipments at two adjacent locations. The location difference is calculated by the user equipment according to the two adjacent location information;

    The positioning module is further configured to determine location information of the user equipment according to the position difference received by the receiving module.
17. A positioning device, characterized in that the device comprises a processor and a transmitter;

    The processor is configured to acquire information of a base station, and obtain positioning information according to the information of the base station, where the base station includes a serving base station and at least two neighboring base stations of the serving base station, where the information of the base station includes at least a serving base station and Information of a positioning reference signal of at least two neighboring base stations of the serving base station;

    The transmitter is configured to send the positioning information acquired by the processor to the serving base station, where the positioning information is used by the serving base station to locate the user equipment.
18. The apparatus according to claim 18, wherein the processor is configured to respectively calculate time difference information of receiving any two of the positioning reference signals according to information of a positioning reference signal included in information of the base station; Transmitting, by the transmitter, the time difference information of the plurality of the positioning reference signals calculated by the processor, to the serving base station, The time difference information of the positioning reference signal is used by the serving base station to locate the user equipment.
19. The apparatus according to claim 18, wherein the information about the base station acquired by the processor further comprises location information of the serving base station and at least two neighboring base stations of the serving base station;

    The processor is configured to calculate, according to information about the positioning reference signal included in the information of the base station, time difference information that is received by any two of the positioning reference signals; and at least two according to the serving base station and the serving base station. Calculating, by the location information of the neighboring base station, a distance between the serving base station and the at least two neighboring base stations; and determining, according to the time difference information of the positioning reference signal, the distance between the serving base station and the at least two neighboring base stations, determining the user equipment Location information, where the location information is a location of the user equipment relative to the serving base station;

    The transmitter is configured to send location information determined by the processor to the serving base station.
20. The apparatus according to claim 20, wherein said processor is further configured to calculate a position difference of said two adjacent said positions based on two adjacent said position information; said transmitter is for Transmitting a location difference calculated by the processor to the serving base station, wherein the location difference is used by the serving base station to determine location information of the user equipment.
21. The apparatus according to claim 18, wherein the positioning information acquired by the processor includes at least a time difference of receiving any two of the positioning reference signals, and a number of at least two neighboring base stations of the serving base station. And the order of the numbers.
22. The apparatus according to any one of claims 18 to 22, wherein the information of the base station acquired by the processor further comprises a timing deviation of the at least two neighboring base stations with respect to the serving base station; the processor And for modifying the positioning information according to a timing offset of the at least two neighboring base stations with respect to the serving base station.
23. A positioning device, characterized in that the device comprises a receiver and a processor;

    The receiver is configured to receive positioning request information sent by the user equipment, and receive positioning information sent by the user equipment, where the positioning information is that the user equipment is according to at least two of the serving base station and the serving base station. And determining, by the neighboring base station, a location reference signal, the serving base station, and location information of at least two neighboring base stations of the serving base station;

    The processor is configured to: when the receiver receives the positioning request information sent by the user equipment, broadcast the positioning reference signal; and when the receiver receives the positioning information sent by the user equipment, according to the positioning The information locates the user equipment.
24. The positioning device according to claim 24, wherein the receiver is further configured to receive a position difference sent by the user equipment, wherein the position difference is that the user equipment is at two adjacent positions. Poor, the position difference is calculated by the user equipment according to the two adjacent location information;

    The processor is further configured to determine location information of the user equipment according to the location difference received by the receiving module.

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