Positioning method, positioning information determination method and device, equipment and system

Abstract

The embodiment of the present invention provides a positioning method, a positioning information determination method and apparatus, a device and a system, the method comprising: obtaining a positioning request, the positioning request comprising target terminal information; determining a target terminal according to the target terminal information, taking one or more pico base stations covering the target terminal as target pico base stations, taking at least two positioning extension devices connected to each target pico base station as target positioning extension devices; configuring a terminal-to-terminal communication link between the target terminal and each target positioning extension device; obtaining the positioning information of the target terminal sent by at least two target positioning extension devices; and positioning the target terminal according to the positioning information of the target terminal sent by at least two target positioning extension devices to obtain the location information of the target terminal. This technical solution can solve the problem of high cost of indoor positioning equipment.

Description

Technical Field

[0001] The present invention relates to the field of terminal positioning technology, and in particular to a positioning method, a positioning information determination method and device, equipment and system. Background Art

[0002] Positioning services generally include outdoor positioning and indoor positioning. For outdoor positioning, for example, based on satellite networks such as Beidou and GPS (Global Positioning System) and ground station auxiliary enhancement systems, multiple meter-level and centimeter-level positioning networks have been built and are widely used in public safety, life applications, traffic navigation, asset tracking, unmanned equipment, smart logistics and other fields.

[0003] However, the above outdoor positioning technologies cannot work effectively indoors due to factors such as the complexity of the indoor environment and signal attenuation. At the same time, although there are also a variety of indoor positioning technologies, such as those based on 4 / 5G cellular networks, Bluetooth, WIFI, and Ultra Wide Band (UWB), these solutions have not yet been deployed on a large scale. One of the main reasons for this problem is that the positioning accuracy is not enough or the cost is too high (such as UWB).

[0004] In order to provide low-cost indoor positioning technology, a feasible solution is to use distributed pico base stations (also referred to as pico RRU) as the main equipment form, reuse the operator's 4G / 5G indoor coverage cellular network, thereby saving the equipment cost, construction cost and maintenance cost of indoor positioning. In the 5G era, operators will widely use distributed pico base stations for indoor coverage.

[0005] A distributed pico base station is a miniaturized, low-power, low-power indoor coverage radio frequency unit (RRU, Radio Remote Unit). The functions it performs are basically the same as those of a traditional RRU used for macro coverage. It has the functions of both a receiver and a transmitter, that is, it converts digital signals into radio frequency signals at the remote end, and then amplifies and transmits them; or it receives the radio frequency signals received by the antenna, converts them into digital signals and then transmits them to the indoor baseband processing unit (Building Base band Unite, BBU). Therefore, a distributed pico base station also includes functional modules such as intermediate frequency signals, transceiver modules, power amplifier modules and filter modules, and the baseband function is also performed by the BBU.

[0006] For the convenience of indoor deployment and construction, distributed pico base stations generally adopt a three-level architecture, such as Figure 1As shown, multiple distributed pico base stations are connected to a dedicated centralized switching unit (Hub) via network cables, and then multiple Hubs are connected to the BBU via optical fibers. Since the distributed pico base stations have a complete RF power processing capability, multiple distributed pico base stations can be flexibly merged and split into cells. For example, when the capacity demand in the deployment area is large, multiple distributed pico base stations can be split into multiple cells to increase capacity. Considering that the distributed pico base stations have the above characteristics, distributed pico base stations are mostly used in large-capacity indoor coverage scenarios such as shopping malls, airport stations, and stadiums. In indoor areas where distributed pico base stations are deployed, indoor positioning services can be provided based on distributed pico base stations. The main principle of its positioning scheme is that multiple distributed pico base stations can simultaneously receive 4G / 5G uplink signals sent by the same terminal, and then the BBU can jointly perform signal processing based on the characteristics of the uplink signals received by multiple distributed pico base stations, such as arrival angle, arrival time, received power and other information, and use positioning algorithms such as fingerprint libraries or triangulation positioning to calculate the indoor position of this terminal. These positioning algorithms are all traditional well-known technologies.

[0007] Generally, the greater the deployment density of distributed pico base stations, that is, the smaller the distance between two adjacent distributed pico base stations, the higher the accuracy of indoor positioning. For example, in order to achieve a positioning accuracy of 5m, when using a positioning algorithm based on a fingerprint library, the average deployment density of distributed pico base stations needs to be around 20m. However, in order to provide communication services, the actual deployment density of distributed pico base stations is usually around 40 to 50m, which means that in order to meet the accuracy requirements of indoor positioning (such as around 5m), the deployment density of distributed pico base stations needs to be increased. The following problems will exist in actual deployment:

[0008] The investment of operators will increase significantly. One part is equipment investment. For example, in the same deployment area, if the deployment density is doubled, the number of distributed pico base stations will be four times that of before. Similarly, the number of hubs, network cables and optical fibers required will also increase in the same proportion. Another part is construction investment, because this is almost equivalent to building a new set of distributed pico base station indoor coverage technology again, because the hub and the connection between the hub and the distributed pico base stations need to be redeployed. The last part is maintenance investment. More equipment will obviously bring greater operation and maintenance costs.

[0009] Indoor coverage needs to be replanned and redesigned. Because the deployment of distributed pico base stations is encrypted, if they are split into different cells, interference will increase significantly and network performance will decrease. If the cells are merged to avoid interference, the baseband processing resources will increase significantly if the baseband is merged, and the BBU computing resources need to be reconfigured. If the RF is merged, the uplink noise floor of the cell will increase. In short, due to the change in network structure, network planning and optimization have to be re-conducted, which is a big challenge for operators in terms of manpower and material resources. Summary of the invention

[0010] In view of this, the embodiments of the present invention provide a positioning method, a positioning information determination method and apparatus, a device and a system, by which the problem of high cost of indoor positioning equipment can be solved.

[0011] In a first aspect, an embodiment of the present application provides a positioning method, the method comprising: obtaining a positioning request, the positioning request comprising target terminal information; determining a target terminal according to the target terminal information, taking one or more pico base stations covering the target terminal as target pico base stations, and taking at least two positioning extension devices connected to each of the target pico base stations as target positioning extension devices; configuring a terminal-to-terminal communication link between the target terminal and each of the target positioning extension devices; obtaining the positioning information of the target terminal sent by the at least two target positioning extension devices; and positioning the target terminal according to the positioning information of the target terminal sent by the at least two target positioning extension devices to obtain the location information of the target terminal.

[0012] Further, before configuring the communication link for terminal direct communication between the target terminal and each of the target positioning extension devices, it also includes: obtaining terminal direct communication capability information of the target terminal; configuring the communication link for terminal direct communication between the target terminal and each of the target positioning extension devices includes: configuring the communication link for terminal direct communication between the target terminal and each of the target positioning extension devices according to the terminal direct communication capability information of the target terminal.

[0013] Further, configuring the communication link for terminal direct communication between the target terminal and each of the target positioning extension devices according to the terminal direct communication capability information of the target terminal includes: if the terminal direct communication capability information of the target terminal includes supporting broadcast transmission, the target terminal is configured to send a positioning signal to each of the target positioning extension devices in a broadcast manner; if the terminal direct communication capability information of the target terminal includes supporting full bandwidth, the target terminal is configured to send the positioning signal to each of the target positioning extension devices in a full bandwidth signal transmission manner; if the terminal direct communication capability information of the target terminal includes supporting a first bandwidth, and the first bandwidth is a partial bandwidth in the full bandwidth, the target terminal is configured to send the positioning signal to each of the target positioning extension devices in a first bandwidth signal transmission manner; if the terminal direct communication capability information of the target terminal includes supporting multi-antenna simultaneous transmission, the target terminal is configured to send the positioning signal to each of the target positioning extension devices in a multi-antenna simultaneous signal transmission manner; or if the terminal direct communication capability information of the target terminal includes supporting antenna rotation transmission, the target terminal is configured to send the positioning signal to each of the target positioning extension devices in an antenna rotation signal transmission manner.

[0014] In the second aspect, another embodiment of the present application also provides a method for determining positioning information, the method comprising: based on the communication link between the positioning device and the target terminal configured, performing terminal direct communication with the target terminal; based on the terminal direct communication, acquiring the positioning signal of the target terminal, and generating corresponding positioning information according to the positioning signal; and sending the positioning information to the positioning device.

[0015] In a third aspect, another embodiment of the present application further provides a positioning device, comprising: a processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the positioning method provided in the first aspect is implemented.

[0016] In a fourth aspect, another embodiment of the present application further provides a positioning expansion device, the positioning expansion device comprising: a processor and a memory, the memory being used to store at least one instruction, the instruction being loaded and executed by the processor to implement the positioning information determination method provided in the second aspect.

[0017] In the fifth aspect, another embodiment of the present application also provides a communication system, which includes: one or more pico base stations, at least two positioning expansion devices provided in the fourth aspect, and the positioning device provided in the third aspect; wherein the positioning device is communicatively connected to the one or more pico base stations, and each of the pico base stations is connected to at least two of the positioning expansion devices.

[0018] Furthermore, each of the pico base stations is connected to at least two of the positioning extension devices, including: the pico base station is directly connected to at least two of the positioning extension devices respectively, or at least two of the positioning extension devices are cascaded in a chain and then connected to the pico base station.

[0019] Furthermore, each of the pico base stations is connected to at least two of the positioning expansion devices, including: the pico base station is directly connected to multiple first positioning expansion devices in at least two of the positioning expansion devices, and multiple second positioning expansion devices in at least two of the positioning expansion devices form a chain cascade and then are connected to one of the first positioning expansion devices.

[0020] Furthermore, each of the pico base stations is connected to at least two of the positioning extension devices, including: connecting a switch to at least two of the positioning extension devices respectively, and connecting the pico base station to the switch.

[0021] Through the above technical scheme, the target terminal corresponding to this positioning operation can be determined according to the target terminal information in the positioning request, and one or more pico base stations covering the target terminal can be used as target pico base stations, and then at least two positioning extension devices connected to each of the target pico base stations can be used as target positioning extension devices. After configuring a terminal-to-terminal (Device-to-Device, D2D) communication link between the target terminal and each of the target positioning extension devices, the positioning information of the target terminal sent by the at least two target positioning extension devices is obtained, and the target terminal is positioned according to the positioning information of the target terminal sent by the at least two target positioning extension devices to obtain the location information of the target terminal. By configuring a D2D communication link for the target terminal and each of the target positioning extension devices, the target terminal and each of the target positioning extension devices transmit signals through D2D communication, thereby avoiding interference with normal base station and terminal communications. At the same time, the positioning accuracy can be improved by the number of positioning extension devices connected to the pico base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of positioning by distributed pico base stations in the prior art;

[0024] Figure 2 A schematic diagram of an indoor positioning scenario provided for an embodiment of the present application;

[0025] Figure 3 Schematic diagram of a D2D communication scenario;

[0026] Figure 4 A flowchart of a positioning method provided by an embodiment of the present application;

[0027] Figure 5 A flowchart of a method for obtaining positioning information provided in another embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of a positioning device provided in yet another embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of a positioning expansion device provided in yet another embodiment of the present application;

[0030] Figure 8 A schematic diagram of the structure of a positioning expansion device provided in yet another embodiment of the present application;

[0031] Fig. 9 A schematic diagram of a connection method between a D2D extension device and a pico base station provided in one embodiment of the present application;

[0032] Fig.10 A schematic diagram of a connection method between a D2D extension device and a pico base station provided in yet another embodiment of the present application;

[0033] Fig.11 A schematic diagram of a connection method between a D2D extension device and a pico base station provided in yet another embodiment of the present application;

[0034] Fig.12 A schematic diagram of a connection method between a D2D extension device and a pico base station is provided in accordance with another embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0038] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0039] In the existing technology, this is achieved by increasing the deployment density of distributed pico base stations. A larger number of devices will obviously bring greater operation and maintenance costs.

[0040] In order to overcome the above technical problems, the present application provides a positioning method for indoor positioning of a target terminal. Figure 2 A schematic diagram of an indoor positioning scenario provided by an embodiment of the present application is shown in FIG. Figure 2 As shown, an indoor positioning scenario provided by an embodiment of the present application may include a communication system 10, a target terminal 20 and a positioning platform 30. Among them, the communication system 10 may include a positioning device 101, a pico base station 102 and a positioning expansion device 103, wherein each pico base station 102 is connected to at least two positioning expansion devices. Specifically, D2D communication can be performed between the pico base station 102 and the connected positioning expansion device 103. Then, the target positioning expansion device 103 connected to the pico base station 102 can obtain the positioning signal sent by the target terminal 20 based on the above-mentioned D2D communication, and each target positioning expansion device 103 can generate corresponding positioning information according to the positioning signal sent by the target terminal 20, and send the positioning information to the positioning device 101 through the target pico base station 102 (the pico base station covering the target terminal 20), so that the positioning device 101 determines the location information of the target terminal 20 according to the positioning information. Among them, at least two target positioning expansion devices 103 that are in D2D communication connection with the target pico base station 102 can replace the target pico base station 102 to perform the operation of receiving the positioning signal sent by the target terminal 20 and generating corresponding positioning information, thereby avoiding the problem of increasing costs and increasing equipment management pressure by increasing positioning accuracy in the prior art by adding multiple distributed pico base stations.

[0041] It should be noted that Figure 2 In the indoor positioning scenario provided in the illustrated embodiment, a pico base station is used to connect two positioning extension devices (positioning extension device a and positioning extension device b) as an example to illustrate the technical solution of the present application. In other embodiments, multiple positioning extension devices may be used instead of the conventional positioning extension device. Figure 2 The scenes shown are intended as limitations.

[0042] The above D2D is also called terminal direct communication. D2D communication technology refers to a communication method in which two peer user nodes communicate directly. Figure 3As shown, in a traditional cellular network, the terminal 202 can only communicate with the base station 201, while in a distributed network composed of D2D communication users, each user node can send and receive signals, such as the D2D communication network 203 composed of terminal devices.

[0043] In 4G networks, D2D communication technology has been standardized in 3GPP, and the communication interface between D2Ds is called the PC5 interface. The LTE D2D application scenarios defined by 3GPP are divided into two categories: public safety and commercial applications. Public safety scenarios refer to emergencies such as earthquakes or other natural disasters, when the mobile communication infrastructure is destroyed or the power system is cut off, causing the base station to fail to work properly, then D2D communication between terminals is allowed. Commercial application scenarios can be divided into peer-to-peer communication and relay communication based on the communication mode. Application scenarios for peer-to-peer communication include local broadcasting, large-scale information interaction, and content-based services. Application scenarios for relay communication include security monitoring, smart homes, etc. The positioning expansion device 103 provided in the embodiment of the present application can be integrated with a terminal chip that supports 5G D2D functions, thereby realizing D2D communication with a 5G terminal.

[0044] In the above solution of using a positioning extension device 103 with a terminal chip supporting 5G D2D function externally connected to a distributed pico station, the architecture design has the following advantages:

[0045] (1) The functions of the extended devices (equivalent to terminals) based on D2D technology can be simplified and designed individually and in a targeted manner. Mature 5G terminal chips can be used to perform D2D communication with terminals, and the 5G terminal industry chain can be reused, significantly reducing chip costs through economies of scale.

[0046] (2) The terminal chip has a high degree of integration, so the expansion equipment can be designed to be very small, which is convenient for indoor deployment and beautification and concealment, thus significantly reducing the difficulty and cost of deployment;

[0047] (3) The expansion device is externally connected to the Pico RRU, so the redeployment of the Hub and the connection between the Hub and Pico RRU can be avoided, thus significantly reducing the deployment cost;

[0048] (4) Since the D2D communication controlled by the base station will not interfere with the normal 5G communication between the base station and the terminal, all extension devices will not affect the indoor coverage performance of the Pico RRU. Therefore, the D2D extension device does not affect the communication performance, so there is no need to re-plan and optimize the indoor coverage, which also reduces the operation and maintenance costs to a certain extent;

[0049] (5) The positioning signal on the D2D communication link can be specially designed and optimized to enhance the positioning accuracy and improve the positioning performance.

[0050] Figure 4 A flowchart of a positioning method provided by an embodiment of the present application is shown in FIG. Figure 4 As shown, the positioning method includes the following steps:

[0051] Step 401: Obtain a positioning request, where the positioning request includes target terminal information.

[0052] Step 402: determine the target terminal according to the target terminal information, use one or more pico base stations covering the target terminal as target pico base stations, and use at least two positioning extension devices connected to each of the target pico base stations as target positioning extension devices.

[0053] Step 403: configuring a terminal-to-terminal communication link between the target terminal and each of the target positioning extension devices.

[0054] Step 404: Acquire the positioning information of the target terminal sent by the at least two target positioning expansion devices.

[0055] Step 405: positioning the target terminal according to the positioning information of the target terminal sent by the at least two target positioning expansion devices to obtain the position information of the target terminal.

[0056] In the specific implementation of step 401, when the user needs positioning service, the corresponding application (for example, map application) is started through the terminal device. At this time, the map application server will send a positioning request to the positioning device 101 (which can be a baseband processing unit Building Base band Unite, BBU). The positioning device 101 can obtain the positioning request, wherein the positioning request information may include target terminal information.

[0057] In the specific implementation of step 402, after obtaining the positioning request, the positioning device 101 can determine the target terminal 20 according to the target terminal information contained therein. Furthermore, one or more pico base stations 102 covering the target terminal 20 can be determined according to the uplink signal of the target terminal 20, and the one or more pico base stations covering the target terminal 20 can be used as the target pico base station 102. In the embodiment of the present application, each pico base station 102 is connected to at least two positioning expansion devices. Therefore, after determining the target pico base station 102, at least two positioning expansion devices 103 connected to the target pico base station 102 can be used as the target positioning expansion device 103. Figure 2 Taking the scene diagram provided in the embodiment as an example, the target pico base station 102 is connected to two positioning extension devices 103. Figure 2As shown, the positioning extension device 103a and the positioning extension device 103b are target positioning extension devices (target positioning extension device 103a and target positioning extension device 103b) in this positioning request operation.

[0058] Before executing step 403 , the positioning device 101 may obtain the terminal direct communication capability information (D2D support capability) of the target terminal 20 , wherein the terminal direct communication capability information of the target terminal 20 may include capabilities such as supported bandwidth or support for multi-antenna transmission.

[0059] In the specific implementation of step 403, a communication link for terminal direct communication (D2D communication) between the target terminal 20 and each of the target positioning extension devices 103 may be configured according to the terminal direct communication capability information of the target terminal 20. Specifically, the configuration method of the D2D communication link between the target terminal 20 and each of the target positioning extension devices 103 is as follows:

[0060] If the terminal direct capability information of the target terminal 20 includes support for broadcast transmission, the target terminal 20 is configured to send a positioning signal to each target positioning expansion device 103 in a broadcast manner;

[0061] If the terminal direct capability information of the target terminal 20 includes supporting full bandwidth, the target terminal 20 is configured to send a positioning signal to each target positioning expansion device 103 in a manner of sending a signal with full bandwidth;

[0062] If the terminal direct capability information of the target terminal 20 includes supporting a first bandwidth, and the first bandwidth is a partial bandwidth in the full bandwidth, the target terminal 20 is configured to send a positioning signal to each target positioning expansion device 103 in a manner of sending a signal with the first bandwidth;

[0063] If the terminal direct communication capability information of the target terminal 20 includes supporting multi-antenna simultaneous transmission, the target terminal 20 is configured to send a positioning signal to each target positioning expansion device 103 in a manner of multi-antenna simultaneous signal transmission; or

[0064] If the terminal direct communication capability information of the target terminal 20 includes supporting antenna rotation transmission, the target terminal 20 is configured to send a positioning signal to each target positioning extension device 103 in a manner of antenna rotation signal transmission.

[0065] After the D2D communication link between the target terminal 20 and the target positioning extension device 103 is configured, the target terminal 20 and the target positioning extension device 103 can perform D2D communication through the D2D communication link.

[0066] In the specific implementation of step 404, the positioning device 101 can obtain the positioning information of the target terminal 20 sent by each target positioning expansion device 103. The specific method for obtaining the positioning information of the target terminal 20 is as follows:

[0067] Figure 5 A flowchart of a method for obtaining positioning information provided in another embodiment of the present application is shown in FIG. Figure 5 As shown, the method for obtaining positioning information includes the following steps:

[0068] Step 501: the target positioning expansion device 103 performs direct-to-device (D2D) communication with the target terminal based on the D2D communication link between the target terminal and the target terminal.

[0069] Step 502: Acquire a positioning signal of the target terminal 20 based on D2D communication, and generate corresponding positioning information of the target terminal 20 according to the positioning signal of the target terminal 20 .

[0070] Step 503 : the target positioning expansion device 103 sends the positioning information of the target terminal 20 to the positioning apparatus 101 .

[0071] exist Figure 5 In the embodiment provided by the illustrated embodiment, each target positioning expansion device 103 can obtain the positioning signal sent by the target terminal 20 through the D2D communication link, and the target positioning expansion device 103 processes the received positioning signal to generate corresponding positioning information, and then the target positioning expansion device 103 sends the positioning information of the target terminal 20 to the positioning device 101. In one embodiment, each target positioning expansion device 103 can send the positioning information of the target terminal 20 to the positioning device 101 through the target pico base station.

[0072] In the specific implementation of step 405, the positioning device 101 can summarize the positioning information of the target terminal 20 sent by each target positioning expansion device 103, and perform positioning calculation on the target terminal 20 according to the summarized positioning information of the target terminal 20 to obtain the position information of the target terminal 20. In some embodiments, the positioning calculation can use a fingerprint library algorithm or a triangulation positioning algorithm to calculate the position information of the target terminal 20, and then the positioning device 101 can report the calculated position information of the target terminal 20 to the positioning platform 30.

[0073] During the process of positioning the target terminal, if it is found that the target terminal sends movement, the specific judgment method of the target terminal sending movement can be to determine that the pico base station covering the terminal has changed, and the positioning device 101 can execute steps 402 to 405 to obtain the location information of the target position again and report it to the positioning platform 30.

[0074] Figure 6 A structural diagram of a positioning device provided in yet another embodiment of the present application is shown in FIG. Figure 6 As shown, the positioning device may include: a processor 601 and a memory 602, wherein the memory 602 is used to store at least one instruction, and when the instruction is loaded and executed by the processor 601, the Figure 4 The illustrated embodiment provides a positioning method.

[0075] Figure 7 A structural diagram of a positioning expansion device provided in another embodiment of the present application is shown as follows: Figure 7 As shown, the positioning expansion device may include: a processor 701 and a memory 702, wherein the memory 702 is used to store at least one instruction, and when the instruction is loaded and executed by the processor 701, the Figure 4 The positioning method provided by the embodiment shown or Figure 5 The illustrated embodiment provides a method for determining positioning information.

[0076] Figure 8 A structural diagram of a positioning expansion device provided in another embodiment of the present application is shown as follows: Figure 8 As shown, the positioning extension device may include: a main control chip 801, a 5G terminal communication chip 802, a switching chip 803, a 5G antenna 804, and network ports 805a and 805b. Among them, the main control chip 801 is responsible for controlling logic-related processing, such as receiving instructions from the positioning device 101 and the pico base station 102, and controlling the 5G terminal communication chip 802 to complete related functions; the 5G terminal communication chip 802 supports the 5G D2D communication protocol and integrates radio frequency-related functions; the switching chip 803 realizes communication with the pico base station 102 and other positioning extension devices through the network ports 805a / 805b.

[0077] The embodiment of the present application also provides a communication system, which may include one or more pico base stations 102, at least two positioning extension devices 103, and a positioning device 101. The positioning device 101 is communicatively connected to the one or more pico base stations 102, and each of the pico base stations 102 is connected to at least two of the positioning extension devices 103. Figure 2 A communication system 10 is shown in which a pico base station 102 is connected to two positioning extension devices 103 (positioning extension device 103a, positioning extension device 103b).

[0078] In some implementations of the present application, the pico base station 102 may be configured to be connected to the positioning extension device 103 in different ways.

[0079] In one implementation, the pico base station 102 is directly connected to at least two of the positioning expansion devices 103, such as Fig. 9As shown, the pico base station 102 is directly connected to the positioning expansion device 103a, the positioning expansion device 103b, the positioning expansion device 103c and the positioning expansion device 103d respectively.

[0080] In another embodiment, at least two of the positioning expansion devices 103 may be connected to the pico base station 102 after forming a chain-type cascade. Fig.10 As shown, the positioning extension device 103a, the positioning extension device 103b, the positioning extension device 103c and the positioning extension device 103d are connected to the pico base station 102 after forming a chain-type cascade.

[0081] In another embodiment, the pico base station 102 is directly connected to multiple first positioning expansion devices 103A in at least two positioning expansion devices 103, and multiple second positioning expansion devices 103B in at least two positioning expansion devices 103 are connected to one of the first positioning expansion devices 103A after forming a chain cascade. Fig.11 As shown, the pico base station 102 is directly connected to multiple first positioning extension devices 103A respectively, and multiple second positioning extension devices 103B are cascaded to form a chain and then connected to one of the first positioning extension devices 103A.

[0082] In another implementation, the switch 104 may be connected to at least two of the positioning expansion devices 103, and the pico base station 102 may be connected to the switch 104. Fig.12 As shown, after the switch 104 is directly connected to the positioning extension device 103a, the positioning extension device 103b, the positioning extension device 103c and the positioning extension device 103d respectively, the pico base station 102 is then connected to the switch 104.

[0083] Another embodiment of the present application further provides a computer storage medium having a computer program stored thereon, which implements Figure 4 The positioning method provided by the embodiment shown or Figure 5 The illustrated embodiment provides a method for determining positioning information.

[0084] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0085] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0086] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0087] 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-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0088] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (Processor) to perform some steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A positioning method, characterized in that: The method comprises: Obtaining a positioning request, wherein the positioning request includes target terminal information; Determine the target terminal according to the target terminal information, use one or more pico base stations covering the target terminal as target pico base stations, and use at least two positioning extension devices connected to each of the target pico base stations as target positioning extension devices, wherein the target pico base station and the at least two connected target positioning extension devices are configured as terminal direct communication; Acquiring terminal direct access capability information of the target terminal; Configuring a terminal-to-terminal communication link between the target terminal and each of the target positioning expansion devices; Acquiring the positioning information of the target terminal sent by the at least two target positioning expansion devices; and Positioning the target terminal according to the positioning information of the target terminal sent by the at least two target positioning expansion devices to obtain the position information of the target terminal; The configuring of a communication link for terminal direct communication between the target terminal and each of the target positioning extension devices includes: configuring a communication link for terminal direct communication between the target terminal and each of the target positioning extension devices according to terminal direct communication capability information of the target terminal.

2. The method according to claim 1, characterized in that The configuring, according to the terminal direct communication capability information of the target terminal, a communication link for terminal direct communication between the target terminal and each of the target positioning extension devices comprises: If the terminal direct capability information of the target terminal includes supporting broadcast transmission, the target terminal is configured to send a positioning signal to each of the target positioning extension devices in a broadcast manner; If the terminal direct communication capability information of the target terminal includes supporting full bandwidth, the target terminal is configured to send the positioning signal to each of the target positioning extension devices in a manner of sending signals with full bandwidth; If the terminal direct capability information of the target terminal includes supporting a first bandwidth, and the first bandwidth is a partial bandwidth in the full bandwidth, the target terminal is configured to send the positioning signal to each of the target positioning extension devices in a manner of sending a signal with the first bandwidth; If the terminal direct communication capability information of the target terminal includes supporting multi-antenna simultaneous transmission, the target terminal is configured to send the positioning signal to each of the target positioning expansion devices in a manner of multi-antenna simultaneous signal transmission; or If the terminal direct communication capability information of the target terminal includes supporting antenna rotation transmission, the target terminal is configured to send the positioning signal to each of the target positioning extension devices in a manner of antenna rotation signal transmission.

3. A method for determining positioning information, characterized in that: The method comprises: Based on the communication link between the positioning device and the target terminal, performing terminal direct communication with the target terminal; Acquiring a positioning signal of the target terminal based on the terminal direct communication, and generating corresponding positioning information according to the positioning signal; and Sending the positioning information to the positioning device; Wherein, the communication link between the positioning device and the target terminal configured includes: The positioning device configures a communication link for terminal direct communication between the target terminal and each target positioning extension device according to the terminal direct communication capability information of the target terminal; The positioning device is used to obtain a positioning request, the positioning request includes target terminal information, determine the target terminal according to the target terminal information, use one or more pico base stations covering the target terminal as target pico base stations, and use at least two positioning extension devices connected to each of the target pico base stations as target positioning extension devices; The positioning device is used to summarize the positioning information of the target terminal sent by each of the target positioning expansion devices, and perform positioning calculation on the target terminal according to the summarized positioning information of the target terminal to obtain the position information of the target terminal, and report the calculated position information of the target terminal to the positioning platform; The target positioning extension device and the connected pico base station are configured as terminal direct communication.

4. A positioning device, characterized in that: The positioning device comprises: A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the positioning method as claimed in claim 1 or 2 is implemented.

5. A positioning expansion device, characterized in that: The positioning expansion device comprises: A processor and a memory, wherein the memory is used to store at least one instruction, and when the instruction is loaded and executed by the processor, the method for determining positioning information as claimed in claim 3 is implemented.

6. A communication system, characterized in that: include: One or more pico base stations, at least two positioning extension devices according to claim 5, and the positioning device according to claim 4; Wherein, the positioning device is communicatively connected to the one or more pico base stations, and each of the pico base stations is connected to at least two of the positioning expansion devices.

7. The communication system according to claim 6, characterized in that: Each of the pico base stations is connected to at least two of the positioning extension devices, including: The pico base station is directly connected to at least two of the positioning extension devices respectively, or at least two of the positioning extension devices are cascaded in a chain and then connected to the pico base station.

8. The communication system according to claim 6, characterized in that: Each of the pico base stations is connected to at least two of the positioning extension devices, including: The pico base station is directly connected to multiple first positioning expansion devices among at least two of the positioning expansion devices, and multiple second positioning expansion devices among at least two of the positioning expansion devices are connected to one of the first positioning expansion devices after forming a chain cascade.

9. The communication system according to claim 6, characterized in that: Each of the pico base stations is connected to at least two of the positioning extension devices, including: The switch is connected to at least two of the positioning expansion devices respectively, and the pico base station is connected to the switch.

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