CN116614878A - Terminal positioning method, device, equipment and storage medium - Google Patents

Terminal positioning method, device, equipment and storage medium Download PDF

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Publication number
CN116614878A
CN116614878A CN202310674737.0A CN202310674737A CN116614878A CN 116614878 A CN116614878 A CN 116614878A CN 202310674737 A CN202310674737 A CN 202310674737A CN 116614878 A CN116614878 A CN 116614878A
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China
Prior art keywords
base station
target
request message
terminal
measurement request
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CN202310674737.0A
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Inventor
单斌
崔萍
卢福怀
刘茂莲
张睿琦
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Priority to CN202310674737.0A priority Critical patent/CN116614878A/en
Publication of CN116614878A publication Critical patent/CN116614878A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a terminal positioning method, device, equipment and storage medium, relates to the technical field of communication, and is used for positioning a terminal in an indoor scene. The method comprises the steps that base station equipment responds to a positioning request message sent by a positioning system, and sends a first measurement request message and a second measurement request message to a target terminal, wherein the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information. The base station equipment receives first channel state information sent by the target terminal in response to the first measurement request message and second channel state information sent by the target terminal in response to the second measurement request message; determining a target direction of the target terminal compared with the base station equipment according to the first channel state information; and determining the target distance of the target terminal compared with the base station equipment according to the second channel state information. And the base station equipment determines the relative position of the target terminal relative to the base station equipment according to the target direction and the target distance.

Description

Terminal positioning method, device, equipment and storage medium
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for locating a terminal.
Background
With the rapid development of information society, the living standard of people is improved, the demands of users for positioning are also continuously improved, and services based on position information are presented in the aspects of people's life. Because of the popularization of the GPS and the Beidou positioning system at the mobile terminal, the outdoor positioning is more accurate, and once the GPS and the Beidou positioning system enter a room, the positioning of the mobile terminal is inaccurate or cannot be used after satellite signals are lost.
In the related indoor terminal positioning method, coarse positioning is often performed through a fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) network, and accurate positioning is further performed by combining with positioning technologies such as a Bluetooth technology and a wireless network communication technology (WiFi). However, because of limited bluetooth coverage, if positioning is implemented based on bluetooth, a large number of reference bluetooth devices need to be deployed; the penetration effect of WiFi signals in indoor transmission is poor, the coverage capability is limited, namely, in order to realize accurate indoor positioning, a large number of reference Bluetooth devices or WiFi devices are required to be additionally deployed, and the cost is high.
Disclosure of Invention
The application provides a terminal positioning method, device, equipment and storage medium, which are used for positioning terminal equipment in an indoor scene.
In order to achieve the above purpose, the application adopts the following technical scheme:
in a first aspect, a terminal positioning method is provided, where the method is applied to a base station device, and includes: the base station equipment responds to a positioning request message sent by a positioning system and sends a first measurement request message and a second measurement request message to a target terminal; the positioning request message comprises an identifier of a target terminal, the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information, the first measurement request message is a measurement request message sent by the base station equipment based on the directional antenna, and the second measurement request message is a measurement request message sent by the base station equipment based on the omni-directional antenna. Further, the base station equipment receives first channel state information sent by the target terminal in response to the first measurement request message and second channel state information sent by the target terminal in response to the second measurement request message; determining a target direction of the target terminal compared with the base station equipment according to the first channel state information; and determining the target distance of the target terminal compared with the base station equipment according to the second channel state information. Further, the base station device determines the relative position of the target terminal with respect to the base station device according to the target direction and the target distance.
In the terminal positioning method provided by the application, no additional equipment is needed, the base station equipment sends the measurement request message based on different antennas, the direction of the terminal relative to the base station equipment is determined according to the channel state information sent by the target terminal in response to the measurement request message sent by the directional antenna, the distance of the terminal relative to the base station equipment is determined according to the channel state information sent by the target terminal in response to the measurement request message sent by the omni-directional antenna, the relative position of the terminal relative to the base station equipment in an indoor environment is obtained according to the direction and the distance, and the cost of an indoor positioning scheme is reduced.
In one possible design, the base station device is configured with a plurality of directional antennas, each of the plurality of directional antennas having a different direction. The base station device responds to a positioning request message sent by a positioning system, and sends a first measurement request message to a target terminal, wherein the first measurement request message comprises: the base station apparatus transmits a first measurement request message to the target terminal based on each of the plurality of directional antennas so that the target terminal receives the plurality of first measurement request messages. In this design, it is disclosed that a plurality of directional antennas are provided in order to accurately determine the relative direction of the target terminal, so that the determined relative direction is more accurate.
In one possible design, the base station apparatus receives first channel state information sent by a target terminal in response to a first measurement request message, and includes: the base station equipment receives a plurality of first channel state information which are sent by the target terminal in response to the plurality of first measurement request messages and correspond to the first measurement request messages one by one.
In one possible design, the determining, by the base station device, the target direction of the target terminal compared to the base station device according to the first channel state information includes: and the base station equipment determines a target directional antenna from the plurality of directional antennas according to the plurality of first channel state information, wherein the channel quality in the first channel state information corresponding to the target directional antenna is highest. Further, the base station apparatus determines an adjacent directional antenna adjacent to the target directional antenna; and determining a target direction according to the target directional antenna and the channel quality included in the first channel state information corresponding to the adjacent directional antenna. According to the design, the relative direction of the target terminal is determined according to the channel state information received by the directional antennas, and the accuracy of determining the position of the target terminal is improved.
In one possible design, the terminal positioning method further includes that the base station equipment obtains a deployment position of the base station equipment. Further, the location of the target terminal is determined according to the deployment location of the base station device and the relative location of the target terminal with respect to the base station device. In the design, after the relative position of the target terminal relative to the base station equipment is obtained, the base station equipment calculates the position information of the target terminal according to the position information of the base station equipment, so that the target terminal is positioned.
In one possible design, the terminal positioning method further includes that the base station device sends the position of the target terminal to the positioning system.
In a second aspect, a terminal positioning device is provided, disposed in a base station apparatus, and includes a transmitting unit, a receiving unit, and a determining unit. A sending unit, configured to send a first measurement request message and a second measurement request message to a target terminal in response to a positioning request message sent by a positioning system; the positioning request message comprises an identifier of a target terminal, the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information, the first measurement request message is a measurement request message sent by the base station equipment based on the directional antenna, and the second measurement request message is a measurement request message sent by the base station equipment based on the omni-directional antenna. And the receiving unit is used for receiving the first channel state information sent by the target terminal in response to the first measurement request message and the second channel state information sent by the target terminal in response to the second measurement request message. And the determining unit is used for determining the target direction of the target terminal compared with the base station equipment according to the first channel state information. And the determining unit is also used for determining the target distance of the target terminal compared with the base station equipment according to the second channel state information. And the determining unit is also used for determining the relative position of the target terminal relative to the base station equipment according to the target direction and the target distance.
In one possible design, the base station device is configured with multiple directional antennas, each of the multiple directional antennas having a different direction. The sending unit is further configured to send a first measurement request message to the target terminal based on each of the multiple directional antennas, so that the target terminal receives the multiple first measurement request messages.
In one possible design, the receiving unit is further configured to receive a plurality of first channel state information sent by the target terminal in response to the plurality of first measurement request messages, where the plurality of first channel state information corresponds to the first measurement request messages one to one.
In one possible design, the determining unit is further configured to determine, from the plurality of directional antennas, a target directional antenna according to the plurality of first channel state information, where the channel quality in the first channel state information corresponding to the target directional antenna is highest. And the determining unit is also used for determining the adjacent directional antenna adjacent to the target directional antenna. And the determining unit is also used for determining the target direction according to the target directional antenna and the channel quality included in the first channel state information corresponding to the adjacent directional antenna.
In one possible design, the terminal positioning device further includes an acquisition unit. An acquisition unit configured to acquire a deployment location of the base station apparatus. The determining unit is further configured to determine a location of the target terminal according to the deployment location of the base station device and a relative location of the target terminal with respect to the base station device.
In a possible design, the sending unit is further configured to send the location of the target terminal to the positioning system.
In a third aspect, a base station apparatus is provided, the base station apparatus comprising a memory and a processor; the memory is coupled to the processor for storing computer program code comprising computer instructions which, when executed by the processor, cause the base station apparatus to perform a terminal positioning method as provided by the first aspect or any of its possible designs.
In a fourth aspect, a computer readable storage medium is provided, in which instructions are stored which, when run on a base station device, cause the base station device to perform a terminal positioning method as provided in the first aspect or any one of its possible implementations.
In a fifth aspect, a computer program product is provided, the computer program product comprising computer instructions which, when run on a base station device, is capable of performing the terminal positioning method as provided in the first aspect or any of its possible implementations.
In the terminal positioning method provided by the application, no additional equipment is needed, and the direction and the distance of the terminal are compared with those of the base station equipment through the base station equipment. And further, according to the direction and the distance, the relative position of the terminal in the indoor scene compared with the base station equipment is obtained, so that the cost of the indoor positioning scheme is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a terminal positioning system according to an embodiment of the present application;
fig. 2 is a schematic diagram of a signal coverage area of a base station device according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a terminal positioning method according to an embodiment of the present application;
fig. 4 is a schematic flow chart II of a terminal positioning method according to an embodiment of the present application;
fig. 5 is a schematic flow chart III of a terminal positioning method according to an embodiment of the present application;
fig. 6 is a schematic flow chart of a terminal positioning method according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal positioning device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a base station device according to an embodiment of the present application;
fig. 9 is a schematic diagram of a base station device according to a second embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In the description of the present application, "/" means "or" unless otherwise indicated, for example, A/B may mean A or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Further, "at least one", "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.
In the related indoor terminal positioning method, coarse positioning is often performed through a 5G network, and accurate positioning is further performed by combining a Bluetooth technology and a WiFi positioning technology. However, because of limited bluetooth coverage, if positioning is implemented based on bluetooth, a large number of reference bluetooth devices need to be deployed; the penetration effect of WiFi signals in indoor transmission is poor, the coverage capability is limited, namely, in order to realize accurate indoor positioning, a large number of reference Bluetooth devices or WiFi devices are required to be additionally deployed, and the cost is high.
In order to solve the above problems, the present application provides a terminal positioning method, apparatus, device and storage medium, where the method is applied to a base station device, and includes: the base station equipment responds to a positioning request message sent by a positioning system and sends a first measurement request message and a second measurement request message to a target terminal; the positioning request message comprises an identifier of a target terminal, the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information, the first measurement request message is a measurement request message sent by the base station equipment based on the directional antenna, and the second measurement request message is a measurement request message sent by the base station equipment based on the omni-directional antenna. Further, the base station equipment receives first channel state information sent by the target terminal in response to the first measurement request message and second channel state information sent by the target terminal in response to the second measurement request message; determining a target direction of the target terminal compared with the base station equipment according to the first channel state information; and determining the target distance of the target terminal compared with the base station equipment according to the second channel state information. Further, the base station device determines the relative position of the target terminal with respect to the base station device according to the target direction and the target distance.
In this way, in the terminal positioning method provided by the application, no additional equipment is needed to be added, the base station equipment sends the measurement request message based on different antennas, the direction of the terminal compared with the base station equipment is determined according to the channel state information sent by the target terminal in response to the measurement request message sent by the directional antenna, the distance of the terminal compared with the base station equipment is determined according to the channel state information sent by the target terminal in response to the measurement request message sent by the omni-directional antenna, and the relative position of the terminal compared with the base station equipment in the indoor environment is obtained according to the direction and the distance, so that the cost of the indoor positioning scheme is reduced.
Fig. 1 shows an indoor terminal positioning system, and the terminal positioning method provided by the embodiment of the application can be applied to the indoor terminal positioning system shown in fig. 1, and is used for realizing indoor positioning of a terminal. As shown in fig. 1, the indoor terminal positioning system 10 includes a base station apparatus 11, a terminal 12, and a positioning system 13.
The base station device 11 is connected to the terminal 12 and the positioning system 13, respectively, and in the connection relationship, the connection may be wired or wireless.
The positioning system 13 may be configured to generate a positioning request message in response to an operation of a user and transmit the positioning request message to the base station apparatus 11.
Wherein the location request message includes an identification of the terminal 12.
The base station device 11 may be configured to send a first measurement request message and a second measurement request message to the terminal 12 in response to a positioning request message sent by the positioning system 13.
The measurement request message is used for requesting the terminal to measure and report the channel state information, the first measurement request message is a measurement request message sent by the base station device 11 based on the directional antenna, and the second measurement request message is a measurement request message sent by the base station device based on the omni-directional antenna.
The terminal 12 may be configured to measure a channel provided by the directional antenna in response to the first measurement request message and report the obtained first channel state information, and may be configured to measure a channel provided by the omni-directional antenna in response to the second measurement request message and report the obtained second channel state information.
The channel state information is included in a channel state information reference signal (channel state information reference signal, CSI-RS) generated by the terminal in response to the measurement request message, and includes: channel quality index (channel quality indicator, CQI), resource indication (CSI-RS resource indicator, CRI), rank Indicator (RI), and precoding indication (precoder matrix indicator, PMI).
Accordingly, the base station device 11 may also be configured to receive the first channel state information and the second channel state information sent by the terminal 12.
The base station device 11 may also be configured to determine a target direction of the terminal 12 compared to the base station device 11 based on the first channel state information; and may also be used to determine a target distance of the terminal 12 compared to the base station device 11 based on the second channel state information.
It should be noted that, the mapping relationship between the channel quality and the direction and the mapping relationship between the channel quality and the distance are stored in the base station device 11 in advance, and then the terminal 12 is determined according to the channel quality included in the channel state information, compared with the target direction and the target distance of the base station device 11.
The base station device 11 may also be adapted to determine the relative position of the terminal 12 with respect to the base station device 11 based on the target direction and the target distance.
In some embodiments, as shown in fig. 2, fig. 2 shows a top view of a signal coverage area of a base station apparatus, the base station apparatus 11 is configured with a plurality of directional antennas, C1-1, C1-2, …, C1-n, respectively, and an omni-directional antenna C2. The signal coverage areas of the directional antennas and the omni-directional antennas are illustrated in fig. 2, for example.
The manner in which the directional antenna transmits the carrier wave may be configured to be similar to the directional transmission manner of the log-periodic antenna, and the manner in which the omni-directional antenna transmits the carrier wave may be configured to be an omni-directional transmission manner.
After the base station device 11 is installed and deployed, the direction of each directional antenna is calibrated, and for example, if the base station device 11 is configured with 8 directional antennas, the 8 directional antennas C1-1, C1-2, …, and C1-8 may be deployed according to the east, southeast, south, southwest, west, northwest, north, and northeast directions, where an included angle between two adjacent directional antennas is 45 ° so as to determine the coverage direction of each directional antenna.
Fig. 3 is a flow diagram illustrating a method of terminal positioning according to some example embodiments. In some embodiments, the above-described terminal positioning method may be applied to the base station apparatus 11 in the indoor terminal positioning system 10 as shown in fig. 1. Hereinafter, the embodiment of the present application will be described by taking an example in which the terminal positioning method is applied to the base station apparatus 11.
As shown in fig. 3, the terminal positioning method provided in the embodiment of the present application includes the following steps S201 to S205.
S201, the base station equipment responds to a positioning request message sent by a positioning system and sends a first measurement request message and a second measurement request message to a target terminal.
The positioning request message comprises an identifier of a target terminal, the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information, the first measurement request message is a measurement request message sent by the base station equipment based on the directional antenna, and the second measurement request message is a measurement request message sent by the base station equipment based on the omni-directional antenna.
As a possible implementation manner, the positioning system responds to the operation of the user on the positioning system and requests to position the target terminal according to the generation of the positioning request message containing the target terminal identification.
Correspondingly, the base station equipment responds to the positioning request message sent by the positioning system, after the target terminal enters the signal coverage area of the base station equipment, the base station equipment sends a first measurement request message to the target terminal based on the directional antenna, and sends a second measurement request message to the target terminal based on the omni-directional antenna.
In some embodiments, the base station device is configured with a plurality of directional antennas, and each directional antenna of the plurality of directional antennas has a different direction. Based on this, the base station device sends a first measurement request message to the target terminal in response to the positioning request message sent by the positioning system, including:
The base station device responds to the positioning request message sent by the positioning system, and sends a first measurement request message to the target terminal based on each directional antenna in the plurality of directional antennas so that the target terminal receives the plurality of first measurement request messages.
As one possible implementation, the base station apparatus first determines a plurality of target directional antennas from among a plurality of directional antennas, where the target terminal is within a signal coverage area of the target directional antennas. Further, the base station apparatus transmits the first measurement request message to the target terminal based on each of the plurality of target antennas.
Illustratively, if the plurality of directional antennas of the base station apparatus are C1-1, C1-2, C1-3, C1-4, C1-5, C1-6, C1-7, C1-8, respectively. In case the base station device determines that the target terminal is located within the signal coverage area of C1-3, C1-4, C1-5, C1-6, the base station device sends a first measurement request message to the target terminal based on C1-3, C1-4, C1-5, C1-6, respectively.
S202, the base station equipment receives first channel state information sent by the target terminal in response to the first measurement request message and second channel state information sent by the target terminal in response to the second measurement request message.
As a possible implementation manner, the target terminal responds to the first measurement request message and tests the channel carrying the first measurement request message to obtain first channel state information corresponding to the channel carrying the first measurement request message. Further, the target terminal sends the CSI-RS carrying the first channel state information to the base station equipment through a channel carrying the first measurement request message.
Correspondingly, the base station equipment receives the CSI-RS sent by the target terminal based on the channel carrying the first measurement request message, and acquires the first channel state information.
And the target terminal responds to the second measurement request message and tests the channel carrying the second measurement request message to obtain second channel state information corresponding to the channel carrying the second measurement request message. Further, the target terminal sends the CSI-RS carrying the second channel state information to the base station equipment through a channel carrying the second measurement request message.
Correspondingly, the base station equipment receives a channel based on the second measurement request message, receives the CSI-RS sent by the target terminal, and acquires second channel state information.
In some embodiments, the base station apparatus is configured with a plurality of directional antennas, each of the plurality of directional antennas having a different direction, and the base station apparatus transmits the first measurement request message to the target terminal based on the plurality of directional antennas. Based on this, the above base station apparatus receives first channel state information transmitted by the target terminal in response to the first measurement request message, including:
The base station equipment receives a plurality of first channel state information which are sent by the target terminal in response to the plurality of first measurement request messages and correspond to the first measurement request messages one by one.
As a possible implementation manner, after the base station device sends the first measurement request message to the target terminal based on the multiple directional antennas in step S201, the target terminal responds to each received first measurement request message, measures each channel carrying the first measurement request message, and obtains channel state information corresponding to each channel. Further, the target terminal sends the CSI-RS carrying the corresponding first channel state information to the base station equipment through the channel carrying each first measurement request message.
Correspondingly, the base station equipment receives the CSI-RS carrying the corresponding first channel state information sent by the target terminal based on each channel carrying the first measurement request message, and acquires the first channel state information corresponding to a plurality of channels carrying each first measurement request message.
Illustratively, if the plurality of directional antennas of the base station apparatus are C1-1, C1-2, C1-3, C1-4, C1-5, C1-6, C1-7, C1-8, respectively. After the base station equipment sends the first measurement request message to the target terminal based on C1-3, C1-4, C1-5 and C1-6 respectively, the target terminal respectively measures channels corresponding to C1-3, C1-4, C1-5 and C1-6 and generates CSI-RS carrying the first channel state information C1-3 、CSI-RS C1-4 、CSI-RS C1-5 、CSI-RS C1-6 And reporting the channels corresponding to C1-3, C1-4, C1-5 and C1-6 to the base station equipment.
S203, the base station equipment determines the target direction of the target terminal compared with the base station equipment according to the first channel state.
As a possible implementation manner, the base station device determines, based on the first channel state information acquired in step S202, a channel quality corresponding to a channel provided by the directional antenna for the current location of the target terminal. Further, the base station device determines a target direction of the target terminal compared with the base station device based on a preset mapping relationship between channel quality and direction.
The preset mapping relationship between the channel quality and the direction may be preset in the base station device by an operator of the indoor terminal positioning system when configuring the directional antenna for the base station device, which is not particularly limited in the embodiment of the present application.
It should be noted that, in the case that the base station device is configured with multiple directional antennas, the specific implementation manner of determining, by the base station device, the target direction of the target terminal relative to the base station device according to the first channel state may refer to the description of the subsequent embodiments of the present application, and will not be described herein again.
S204, the base station equipment determines the target distance of the target terminal compared with the base station equipment according to the second channel state information.
As a possible implementation manner, the base station device determines, based on the second channel state information acquired in step S202, a channel quality corresponding to a channel provided by the omni-directional antenna for the current location of the target terminal. Further, the base station device determines a target distance of the target terminal compared with the base station device based on a preset mapping relationship between channel quality and distance.
The preset mapping relationship between the channel quality and the distance may be preset in the base station device by an operation and maintenance personnel of the indoor terminal positioning system when configuring the omni-directional antenna for the base station device, which is not particularly limited in the embodiment of the present application.
S205, the base station equipment determines the relative position of the target terminal relative to the base station equipment according to the target direction and the target distance.
As a possible implementation manner, the base station device determines the target direction determined based on the above step S203 and the target distance determined in the above step S204 as the relative position of the target terminal with respect to the base station device.
It can be understood that in the terminal positioning method provided by the application, no additional equipment is needed, the base station equipment sends the measurement request message based on different antennas, and then the direction of the terminal compared with the base station equipment is determined according to the channel state information sent by the target terminal in response to the measurement request message sent by the directional antenna, the distance of the terminal compared with the base station equipment is determined according to the channel state information sent by the target terminal in response to the measurement request message sent by the omni-directional antenna, and the relative position of the terminal compared with the base station equipment in the indoor environment is obtained according to the direction and the distance, so that the cost of the indoor positioning scheme is reduced.
In one design, in order to make the positioning of the target terminal more accurate, the base station device is configured with a plurality of directional antennas for determining the target direction of the target terminal compared with the base station device, and in the terminal positioning method provided by the embodiment of the application, as shown in fig. 4, S301-S303 are further included.
S301, the base station equipment determines a target directional antenna from a plurality of directional antennas according to a plurality of pieces of first channel state information.
The channel quality in the first channel state information corresponding to the target directional antenna is highest.
As a possible implementation manner, the base station device determines, according to the received multiple pieces of first channel state information, first channel state information with highest channel quality, and further determines a directional antenna corresponding to a channel carrying the first channel state information as a target directional antenna.
Exemplary, if the plurality of directional antennas of the base station apparatus are C1-1, C1-2, C1-3, C1-4, C1-5, C1-6, C1-7, and C1-8, respectively, and the channel quality corresponding to each directional antenna is A C1-1 、A C1-2 、A C1-3 、A C1-4 、A C1-5 、A C1-6 、A C1-7 、A C1-8 If A C1-5 The maximum, the base station device determines the target directional antenna to be C1-5.
S302, the base station equipment determines adjacent directional antennas adjacent to the target directional antenna.
As one possible implementation manner, the base station device determines an adjacent directional antenna adjacent to the target directional antenna according to the prestored directional antenna deployment position and the target directional antenna.
It should be noted that, the deployment position of the directional antenna may be set in the base station device in advance by an operator of the indoor terminal positioning system, which is not particularly limited in the embodiment of the present application.
Illustratively, if the pre-stored directional antenna deployment locations in the base station apparatus are C1-1, C1-2, C1-3, C1-4, C1-5, C1-6, C1-7, C1-8, ordered clockwise. The base station apparatus may determine C1-4 and C1-6 as neighboring directional antennas neighboring the target directional antenna C1-5 after determining C1-5 as the target directional antenna.
S303, the base station equipment determines a target direction according to the target directional antenna and the channel quality included in the first channel state information corresponding to the adjacent directional antenna.
As a possible implementation, the base station device first determines that the target terminal is located in the signal coverage direction of the target directional antenna compared to the direction of the base station device. Further, since the same positions of the channel quality exist on both sides of the direction indicated by the target directional antenna in the signal coverage area provided by the target directional antenna, the base station device determines the target adjacent directional antenna with changed channel quality according to the channel quality included in the first channel state information corresponding to the adjacent directional antenna.
Further, the base station device determines a position corresponding to the channel quality in the first channel state information corresponding to the target directional antenna in an area between the direction indicated by the target directional antenna and the direction indicated by the target adjacent directional antenna. Further, the base station apparatus determines a connection direction of the own position and the determined position as a target direction.
It can be understood that, in the terminal positioning method provided in the above embodiment of the present application, based on a plurality of directional antennas configured on the base station device, after determining that the target terminal accesses the target directional antennas of the base station device, the target direction of the target terminal relative to the base station device is determined based on the adjacent directional antennas on both sides of the target directional antennas, so as to improve the accuracy of positioning the position of the target terminal.
In one design, in order to determine the location of the target terminal, the terminal positioning method provided by the embodiment of the present application, as shown in fig. 5, further includes S401-S402.
S401, the base station equipment acquires the deployment position of the base station equipment.
As a possible implementation manner, the base station device obtains the deployment position of the base station device itself based on the pre-stored deployment information.
It should be noted that, the deployment information of the base station device may be preset in the base station device by an operation and maintenance personnel of the indoor terminal positioning system, and the deployment information includes, in addition to the deployment location, information of a frequency band supported by the base station device, a home operator, and the like, which is not specifically limited in the embodiment of the present application.
S402, the base station equipment determines the position of the target terminal according to the deployment position of the base station equipment and the relative position of the target terminal relative to the base station equipment.
The deployment location may be latitude and longitude information.
As a possible implementation manner, the base station device calculates longitude and latitude information of the target terminal by combining the relative position of the target terminal with respect to the base station device on the basis of the deployment position of the base station device, and determines the calculated longitude and latitude information as the position of the target terminal.
In some embodiments, the base station apparatus, after determining the location of the target terminal, transmits the location of the target terminal to the positioning system so that the positioning system feeds back the location of the terminal to the user.
It can be understood that in the terminal positioning method provided by the embodiment of the present application, after the relative position of the target terminal with respect to the base station device is obtained, the base station device calculates the position information of the target terminal according to the position information of the base station device, so as to implement positioning of the target terminal.
In one design, in the terminal positioning method according to the above embodiment of the present application, as shown in fig. 6, after obtaining the channel state information sent by the target terminal, the base station device may feed back to the positioning system, and the positioning system performs positioning on the target terminal in the subsequent process.
In the flow shown in fig. 6, the positioning system initiates a positioning request of the target terminal to the base station device, and the base station device sends measurement messages to the target terminal through the directional carrier (C1) and the omni-directional carrier (C2) respectively in response to the positioning request, so that the target terminal feeds back channel state information in response to the measurement messages. Further, after receiving the channel state information, the base station equipment feeds back the positioning information to the positioning system, so that the positioning system matches a direction parameter model of C1 after receiving the channel state information reported by the target terminal for C1 measurement, calculates the direction between the target terminal and the base station equipment, and matches an attenuation model of C2 and the distance between the base station equipment of the Home-sun target terminal after receiving the channel state information reported by the target terminal for C2 measurement. Further, the positioning system determines the position of the target terminal according to the direction and the distance, so that the target terminal is positioned in an indoor scene.
It should be noted that, the specific implementation manner of determining the position of the target terminal by the positioning system according to the channel state information may refer to the implementation manner of determining the position of the target terminal by the base station device in the above embodiment of the present application, which is not described herein.
Fig. 7 is a schematic structural diagram of a terminal positioning device according to an embodiment of the present application. The terminal positioning device is used for executing the terminal positioning method. As shown in fig. 7, the terminal positioning device 50 includes a transmitting unit 501, a receiving unit 502, and a determining unit 503.
A sending unit 501, configured to send a first measurement request message and a second measurement request message to a target terminal in response to a positioning request message sent by a positioning system. The positioning request message comprises an identifier of a target terminal, the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information, the first measurement request message is a measurement request message sent by the base station equipment based on the directional antenna, and the second measurement request message is a measurement request message sent by the base station equipment based on the omni-directional antenna. For example, as shown in fig. 3, the transmission unit 501 may be used to perform S201.
A receiving unit 502, configured to receive first channel state information sent by the target terminal in response to the first measurement request message, and second channel state information sent by the target terminal in response to the second measurement request message. For example, as shown in fig. 3, the receiving unit 502 may be used to perform S202.
A determining unit 503, configured to determine a target direction of the target terminal compared to the base station device according to the first channel state information. For example, as shown in fig. 3, the determination unit 503 may be used to perform S203.
The determining unit 503 is further configured to determine a target distance of the target terminal compared to the base station device according to the second channel state information. For example, as shown in fig. 3, the determination unit 503 may be used to perform S204.
The determining unit 503 is further configured to determine a relative position of the target terminal with respect to the base station device according to the target direction and the target distance. For example, as shown in fig. 3, the determination unit 503 may be used to perform S205.
Optionally, as shown in fig. 7, in the terminal positioning device 50 provided in the embodiment of the present application, a base station device is configured with a plurality of directional antennas, where a direction of each of the plurality of directional antennas is different.
The sending unit 501 is further configured to send a first measurement request message to the target terminal based on each of the multiple directional antennas, so that the target terminal receives the multiple first measurement request messages.
Optionally, as shown in fig. 7, in the terminal positioning device 50 provided in the embodiment of the present application, the receiving unit 502 is further configured to receive a plurality of first channel state information sent by the target terminal in response to a plurality of first measurement request messages, where the plurality of first channel state information corresponds to the first measurement request messages one by one.
Optionally, as shown in fig. 7, in the terminal positioning device 50 provided in the embodiment of the present application, the determining unit 503 is further configured to determine, according to the plurality of first channel state information, a target directional antenna from a plurality of directional antennas, where the channel quality in the first channel state information corresponding to the target directional antenna is highest.
The determining unit 503 is further configured to determine an adjacent directional antenna adjacent to the target directional antenna.
The determining unit 503 is further configured to determine the target direction according to the target directional antenna and channel quality included in the first channel state information corresponding to the adjacent directional antenna.
Optionally, as shown in fig. 7, the terminal positioning device 50 provided in the embodiment of the present application further includes an obtaining unit 504.
An obtaining unit 504, configured to obtain a deployment location of the base station device.
The determining unit 503 is further configured to determine the location of the target terminal according to the deployment location of the base station device and the relative location of the target terminal with respect to the base station device.
Optionally, as shown in fig. 7, in the terminal positioning device 50 provided in the embodiment of the present application, the sending unit 501 is further configured to send the location of the target terminal to the positioning system.
In the case of implementing the functions of the integrated modules in the form of hardware, an embodiment of the present application provides a possible schematic structural diagram of a base station device. The base station apparatus is used for executing the terminal positioning method executed by the terminal positioning device in the above embodiment. As shown in fig. 8, the base station apparatus 60 includes a processor 601, a memory 602, and a bus 603. The processor 601 and the memory 602 may be connected by a bus 603.
The processor 601 is a control center of the base station apparatus, and may be one processor or a collective term of a plurality of processing elements. For example, the processor 601 may be a general-purpose central processing unit (central processing unit, CPU), or may be another general-purpose processor. Wherein the general purpose processor may be a microprocessor or any conventional processor or the like.
As one example, processor 601 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 8.
The memory 602 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), magnetic disk storage or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
As a possible implementation, the memory 602 may exist separately from the processor 601, and the memory 602 may be connected to the processor 601 through the bus 603 for storing instructions or program codes. When the processor 601 invokes and executes instructions or program codes stored in the memory 602, the terminal positioning method provided by the embodiment of the present application can be implemented.
In another possible implementation, the memory 602 may also be integrated with the processor 601.
Bus 603 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, a peripheral component interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus.
Note that the structure shown in fig. 8 does not constitute a limitation of the base station apparatus 60. In addition to the components shown in fig. 8, the base station apparatus 60 may include more or fewer components than shown in fig. 8, or may combine certain components, or may have a different arrangement of components.
As an example, in connection with fig. 7, the functions implemented by the transmitting unit 501, the receiving unit 502, the determining unit 503, and the acquiring unit 504 in the terminal positioning device 50 are the same as those of the processor 601 in fig. 8.
Optionally, as shown in fig. 8, the base station apparatus provided in the embodiment of the present application may further include a communication interface 604.
Communication interface 604 for connecting with other devices via a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc. The communication interface 604 may include an acquisition unit for receiving data, and a transmission unit for transmitting data.
In one design, the communication interface may also be integrated into the processor in the base station device provided in the embodiments of the present application.
Fig. 9 shows another hardware structure of the base station apparatus in the embodiment of the present application. As shown in fig. 9, the base station apparatus 70 may include a processor 701 and a communication interface 702. The processor 701 is coupled to a communication interface 702.
The function of the processor 701 may be as described above with reference to the processor 601. The processor 701 also has a memory function, and the function of the memory 602 can be referred to.
The communication interface 702 is used to provide data to the processor 701. The communication interface 702 may be an internal interface of the base station apparatus or an external interface of the base station apparatus (corresponding to the communication interface 604).
It should be noted that the structure shown in fig. 9 does not constitute a limitation of the base station apparatus, and the base station apparatus 70 may include more or less components than those shown in fig. 9, or may combine some components, or may be different in arrangement of components.
From the above description of embodiments, it will be apparent to those skilled in the art that the foregoing functional unit divisions are merely illustrative for convenience and brevity of description. In practical applications, the above-mentioned function allocation may be performed by different functional units, i.e. the internal structure of the device is divided into different functional units, as needed, to perform all or part of the functions described above. The specific working processes of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which are not described herein.
The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores instructions, when the computer executes the instructions, the computer executes each step in the method flow shown in the method embodiment.
Embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the terminal positioning method of the above method embodiments.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: electrical connections having one or more wires, portable computer diskette, hard disk. Random access Memory (Random Access Memory, RAM), read-Only Memory (ROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), registers, hard disk, optical fiber, portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium suitable for use by a person or persons of skill in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Since the apparatus, the device computer readable storage medium, and the computer program product in the embodiments of the present application can be applied to the above-mentioned method, the technical effects that can be obtained by the apparatus, the device computer readable storage medium, and the computer program product can also refer to the above-mentioned method embodiments, and the embodiments of the present application are not described herein again.
The foregoing is merely illustrative of specific embodiments of the present application, and the scope of the present application is not limited thereto, but any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (14)

1. A terminal positioning method, applied to a base station device, comprising:
responding to a positioning request message sent by a positioning system, and sending a first measurement request message and a second measurement request message to a target terminal; the positioning request message comprises an identifier of the target terminal, the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information, the first measurement request message is a measurement request message sent by the base station equipment based on a directional antenna, and the second measurement request message is a measurement request message sent by the base station equipment based on an omnidirectional antenna;
Receiving first channel state information sent by the target terminal in response to the first measurement request message and second channel state information sent by the target terminal in response to the second measurement request message;
determining a target direction of the target terminal compared with the base station equipment according to the first channel state information;
determining a target distance of the target terminal compared with the base station equipment according to the second channel state information;
and determining the relative position of the target terminal relative to the base station equipment according to the target direction and the target distance.
2. The terminal positioning method according to claim 1, wherein the base station apparatus is configured with a plurality of directional antennas, each of which has a different direction; the response to the positioning request message sent by the positioning system, the first measurement request message is sent to the target terminal, including:
the first measurement request message is sent to the target terminal based on each of the plurality of directional antennas, so that the target terminal receives a plurality of the first measurement request messages.
3. The terminal positioning method according to claim 2, wherein said receiving the first channel state information transmitted by the target terminal in response to the first measurement request message includes:
And receiving a plurality of first channel state information which are sent by the target terminal in response to the plurality of first measurement request messages and correspond to the first measurement request messages one by one.
4. A terminal positioning method according to claim 3, wherein said determining the target direction of the target terminal compared to the base station apparatus based on the first channel state information comprises:
determining a target directional antenna from the plurality of directional antennas according to the plurality of first channel state information, wherein the channel quality in the first channel state information corresponding to the target directional antenna is highest;
determining an adjacent directional antenna adjacent to the target directional antenna;
and determining the target direction according to the target directional antenna and the channel quality included in the first channel state information corresponding to the adjacent directional antenna.
5. The terminal positioning method according to any one of claims 1-4, characterized in that the method further comprises:
acquiring a deployment position of the base station equipment;
and determining the position of the target terminal according to the deployment position of the base station equipment and the relative position of the target terminal relative to the base station equipment.
6. The terminal positioning method according to claim 5, characterized in that the method further comprises:
and sending the position of the target terminal to the positioning system.
7. The terminal positioning device is characterized by being deployed in base station equipment and comprising a sending unit, a receiving unit and a determining unit;
the sending unit is used for responding to the positioning request message sent by the positioning system and sending a first measurement request message and a second measurement request message to the target terminal; the positioning request message comprises an identifier of the target terminal, the measurement request message is used for requesting the terminal to measure channel state information and report the channel state information, the first measurement request message is a measurement request message sent by the base station equipment based on a directional antenna, and the second measurement request message is a measurement request message sent by the base station equipment based on an omnidirectional antenna;
the receiving unit is configured to receive first channel state information sent by the target terminal in response to the first measurement request message, and second channel state information sent by the target terminal in response to the second measurement request message;
the determining unit is used for determining a target direction of the target terminal compared with the base station equipment according to the first channel state information;
The determining unit is further configured to determine a target distance of the target terminal compared to the base station device according to the second channel state information;
the determining unit is further configured to determine a relative position of the target terminal with respect to the base station device according to the target direction and the target distance.
8. The terminal positioning apparatus according to claim 7, wherein the base station device is configured with a plurality of directional antennas, each of the plurality of directional antennas having a different direction;
the sending unit is further configured to send the first measurement request message to the target terminal based on each of the multiple directional antennas, so that the target terminal receives multiple first measurement request messages.
9. The terminal positioning device according to claim 8, wherein the receiving unit is further configured to receive a plurality of pieces of first channel state information that are sent by the target terminal in response to a plurality of pieces of the first measurement request messages, the pieces of first channel state information corresponding to the first measurement request messages one by one.
10. The terminal positioning device according to claim 9, wherein the determining unit is further configured to determine a target directional antenna from the plurality of directional antennas according to the plurality of first channel state information, where the target directional antenna corresponds to a channel quality that is highest in the first channel state information;
The determining unit is further configured to determine an adjacent directional antenna adjacent to the target directional antenna;
the determining unit is further configured to determine the target direction according to channel qualities included in the first channel state information corresponding to the target directional antenna and the adjacent directional antenna.
11. The terminal positioning device according to any one of claims 7-10, characterized in that the terminal positioning device further comprises an acquisition unit;
the acquisition unit is used for acquiring the deployment position of the base station equipment;
the determining unit is further configured to determine a location of the target terminal according to a deployment location of the base station device and a relative location of the target terminal with respect to the base station device.
12. The terminal positioning device according to claim 11, wherein the transmitting unit is further configured to transmit the location of the target terminal to the positioning system.
13. A base station apparatus comprising a memory and a processor;
the memory is coupled to the processor;
the memory is used for storing computer program codes, and the computer program codes comprise computer instructions;
The base station apparatus performs the terminal positioning method according to any one of claims 1-6 when the processor executes the computer instructions.
14. A computer readable storage medium having instructions stored therein, which when run on a base station device cause the base station device to perform the terminal positioning method according to any of claims 1-6.
CN202310674737.0A 2023-06-06 2023-06-06 Terminal positioning method, device, equipment and storage medium Pending CN116614878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310674737.0A CN116614878A (en) 2023-06-06 2023-06-06 Terminal positioning method, device, equipment and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310674737.0A CN116614878A (en) 2023-06-06 2023-06-06 Terminal positioning method, device, equipment and storage medium

Publications (1)

Publication Number Publication Date
CN116614878A true CN116614878A (en) 2023-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN116614878A (en)

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