WO2023151563A1

WO2023151563A1 - Auxiliary positioning method and communication apparatus

Info

Publication number: WO2023151563A1
Application number: PCT/CN2023/074841
Authority: WO
Inventors: 李俊; 李雪茹
Original assignee: 华为技术有限公司
Priority date: 2022-02-09
Filing date: 2023-02-07
Publication date: 2023-08-17

Abstract

The present application relates to the technical field of wireless communications. Provided are an auxiliary positioning method and a communication apparatus, by means of which a positioning integrity protection level (PL) can be predicted, a positioning scheme is selected by means of the predicted positioning integrity PL, such that the predicted PL corresponding to the selected positioning scheme meets a positioning integrity performance index, and the selected positioning scheme has relatively low processing complexity. The method comprises: a first network device sending first information to a monitoring device, wherein the first information comprises a predicted location of a first user equipment; then, the first network device receiving positioning integrity auxiliary information from the monitoring device, wherein the positioning integrity auxiliary information is determined on the basis of the predicted location of the first user equipment; and then, the first network device predicting a positioning integrity PL according to the predicted location of the first user equipment and the positioning integrity auxiliary information.

Description

Auxiliary positioning method and communication device

This application claims the priority of the Chinese patent application submitted to the State Intellectual Property Office on February 09, 2022, with the application number 202210122261.5, and the application name is "A Method for Determining a Positioning Scheme", and is required to be submitted on March 10, 2022 The State Intellectual Property Office, the priority of the Chinese patent application with the application number 202210240750.0 and the application name "Auxiliary positioning method and communication device", the entire content of which is incorporated in this application by reference.

technical field

The present application relates to the field of wireless communication, in particular to an auxiliary positioning method and a communication device.

Background technique

In the third generation partnership project (the third generation partnership project, 3GPP) radio access technology dependent (radio access technology, RAT-dependent) positioning scenario, the network equipment protection level of positioning integrity (protection level, PL) and The alert limit (alert limit, AL) is compared to obtain the positioning integrity (positioning integrity) result. Wherein, the PL is determined by the network device based on information such as positioning measurement data and reference device coordinates, error variance, etc., and the positioning measurement data and error variance information are related to the positioning mode.

However, if the reference equipment selected by the network equipment is inappropriate (such as the location and quantity of the reference equipment are inappropriate) or the positioning method is inappropriate, the PL cannot meet the positioning integrity performance index, or the positioning measurement data volume is large, which will increase the Increased data processing complexity.

Contents of the invention

The present application provides an auxiliary positioning method and a communication device, which can predict the positioning integrity protection level PL, and select a positioning scheme based on the predicted positioning integrity protection level PL, so that the predicted PL corresponding to the selected positioning scheme meets the positioning integrity performance index, and make the selected positioning scheme have lower processing complexity.

In order to achieve the above object, the application adopts the following technical solutions:

In a first aspect, an assisted positioning method is provided, and the execution body of the method may be a first network device, or may be a chip applied in the first network device. The description below takes the execution subject as an example of the first network device. The method includes: the first network device sends first information to the monitoring device. Wherein, the first information includes the predicted location of the first user equipment. Afterwards, the first network device receives the positioning integrity assistance information from the monitoring device. Wherein, the positioning integrity assistance information is determined based on the predicted position of the first user equipment. Then, the first network device predicts the location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information.

Since the positioning integrity auxiliary information is determined based on the predicted location of the first user equipment, the positioning integrity auxiliary information can better reflect the real situation of the environment where the first user equipment is located, and the assisted positioning method increases the prediction In the PL process, the predicted PL can be the PL of at least two positioning schemes, so the first network device can select a positioning scheme based on the predicted PL, so that the predicted PL corresponding to the selected positioning scheme satisfies the positioning integrity performance index, and make the selected positioning scheme have lower processing complexity.

In a possible design, the method further includes: the first network device receives the first Two pieces of information, wherein the second piece of information includes a positioning integrity performance indicator, a predicted location of the first user equipment, and error variance information of the first user equipment. The first network device predicts the location integrity protection level PL according to the predicted location of the first user equipment and the location integrity auxiliary information, which specifically includes: predicting the location integrity protection level PL according to the second information and the location integrity auxiliary information.

That is to say, the first network device obtains the predicted location of the first user equipment by receiving the second information, and the first network device can also predict the PL by taking into account the error variance information and noise error information of the first user equipment, which is helpful To improve the accuracy of predicting PL.

In a possible design, the first network device predicts the location integrity protection level PL according to the second information and the location integrity auxiliary information, which specifically includes: predicting the first PL and PL according to the second information and the location integrity auxiliary information Second PL. The method further includes: the first network device determines, according to the first PL and the second PL, a positioning method and a reference device for locating the first user equipment.

That is to say, the predicted PL is the PL of at least two positioning schemes, so the first network device can select one positioning scheme from at least two positioning schemes based on the predicted PL, so that the selected positioning scheme corresponds to Predicting PL satisfies the positioning integrity performance index and enables the selected positioning scheme to have lower processing complexity.

In a possible design, the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device. The first network device predicts the first PL and the second PL according to the second information and the positioning integrity auxiliary information, including: predicting the first PL according to the second information and error variance information of the first reference device, and predicting the first PL according to the second information and The second PL is predicted with reference to the error variance information of the device. Wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device. Alternatively, the first reference device is different from the second reference device.

Wherein, the error variance information is related to a positioning method, and the positioning method may be a positioning technology defined in a communication protocol. That is to say, the first network device selects different positioning methods, and/or selects different reference devices, which means that the first network device selects different positioning solutions. Different positioning schemes correspond to different PLs. Therefore, the first network device can predict the PLs of different positioning schemes, so that the first network device can select a better positioning scheme from different positioning schemes to meet the positioning integrity index. It helps to reduce the complexity of data processing during actual positioning measurement.

In a possible design, the monitoring device is the first reference device or the second reference device. That is to say, in addition to having a monitoring function, the monitoring device can also serve as a reference point, so that the first network device locates the first user equipment based on the reference point.

In a possible design, before receiving the second information from the first user equipment, the method further includes: the first network device sends a first request message to the first user equipment, where the first request message is used to request The first user equipment sends the second information. In this way, even if the first user equipment does not actively provide the second information to the first network device, the first user equipment may respond to the first request message and provide the second information to the first network device, so that the first network device can predict in time pl.

In a possible design, the monitoring device is a second network device, for example, the monitoring device is an access network device.

In a possible design, the first information is a positioning information request message. That is to say, the first network device sends the first information to the monitoring device through a location information request message.

In a possible design, the first information is a sending and receiving node information request message. That is to say, the first network device sends the first information to the monitoring device by sending and receiving a node information request message.

In a possible design, the first information is carried in the integrity information request information element, so that the first information is transmitted through the integrity information request information element.

In a possible design, the monitoring device is a second user device, where the second user device is different from the first user device.

In a possible design, the first information is a location request message. That is to say, the first network device sends the first information to the monitoring device through a location request message.

In a possible design, the first information is carried in the integrity information auxiliary data cell, so that the first information is transmitted through the integrity information auxiliary data cell.

In the second aspect, an auxiliary positioning method is provided, and the execution subject of the method may be a monitoring device, or may be a chip applied in the monitoring device. The following description is made by taking the execution subject as a monitoring device as an example. The method includes: the monitoring device receives first information from the first network device, wherein the first information includes the predicted location of the first user equipment, and then the monitoring device sends positioning integrity assistance information to the first network device, wherein the positioning The integrity assistance information is determined based on the predicted location of the first user equipment, and the location integrity assistance information is used to predict the location integrity protection level PL.

In a possible design, the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device.

In a possible design, the monitoring device is the first reference device or the second reference device.

In a possible design, the monitoring device is a second network device.

In a possible design, the first information is a positioning information request message.

In a possible design, the first information is a sending and receiving node information request message.

In a possible design, the first information is carried in an integrity information request information element.

In a possible design, the first information is a location request message.

In a possible design, the first information is carried in an integrity information auxiliary data cell.

In a third aspect, an assisted positioning method is provided, and the execution subject of the method may be the first network device, or may be a chip applied in the first network device. The description below takes the execution subject as an example of the first network device. The method includes: the first network device sends first information to the monitoring device, wherein the first information includes a predicted location of the first user equipment. Then, the first network device receives positioning integrity assistance information from the monitoring device, where the positioning integrity assistance information is determined based on the predicted location of the first user equipment.

Since the positioning integrity auxiliary information is determined based on the predicted location of the first user equipment, the positioning integrity auxiliary information can better reflect the real situation of the environment where the first user equipment is located, and the positioning integrity auxiliary information can be used Regarding the predicted PL, the predicted PL may be the PL of at least two positioning schemes, so as to lay a foundation for the first network device to select a better positioning scheme. Wherein, the better positioning scheme can be understood as that the predicted PL corresponding to the selected positioning scheme satisfies the positioning integrity performance index, and the selected positioning scheme has lower positioning processing complexity.

In a possible design, the method further includes: the first network device predicts the location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information.

In a possible design, the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device. The first network device predicts the first PL and the second PL according to the second information and the positioning integrity auxiliary information, specifically including: predicting the first PL according to the second information and the error variance information of the first reference device; according to the second information and the error variance information of the second reference device to predict the second PL. Wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device. Alternatively, the first reference device is different from the second reference device.

In a possible design, before receiving the second information from the first user equipment, the method further includes: the first network device sends a first request message to the first user equipment. Wherein, the first request message is used to request the first user equipment to send the second information.

In a fourth aspect, an assisted positioning method is provided, and the method may be executed by a first user equipment, or may be a chip applied in the first user equipment. The following description is made by taking the execution subject as an example of the first user equipment. The method includes: the first user equipment receives the positioning integrity auxiliary information from the monitoring device, and then predicts the positioning integrity protection level PL according to the predicted position of the first user equipment and the positioning integrity auxiliary information.

In this way, the above positioning integrity assistance information can better reflect the real situation of the environment where the first user equipment is located, and the assisted positioning method adds a process of predicting PL, and the predicted PL can be the PL of at least two positioning schemes, Therefore, the first user equipment can suggest a positioning scheme to the first network device based on the predicted PL, so that the predicted PL corresponding to the proposed positioning scheme meets the positioning integrity performance index, and the proposed positioning scheme has a better performance. Low processing complexity.

In a possible design, the first user equipment predicts the location integrity protection level PL according to the predicted location of the first user equipment and the location integrity auxiliary information, which specifically includes: according to the location integrity performance index, the first user equipment's The error variance information, the predicted location of the first user equipment and the positioning integrity assistance information predict the first PL and the second PL. The method further includes: the first user equipment determines, according to the first PL and the second PL, a positioning method and a reference device for locating the first user equipment.

In a possible design, the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device. The first user equipment predicts the first PL and the second PL according to the positioning integrity performance index, the error variance information of the first user equipment, the predicted position of the first user equipment, and the positioning integrity auxiliary information, specifically including: according to the positioning integrity The performance index, the error variance information of the first user equipment, the predicted position of the first user equipment, and the error variance information of the first reference equipment, and predict the first PL; according to the positioning integrity performance index, the error variance information of the first user equipment, The predicted position of the first user equipment and the error variance information of the second reference equipment are used to predict the second PL. Wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device. Alternatively, the first reference device Different from the second reference device.

In a possible design, the method further includes: the first user equipment sends first information to the first network device, where the first information includes a positioning method for locating the first user equipment and information of a reference device.

In a possible design, the monitoring device is a second network device.

In a possible design, the monitoring device is the second user equipment. The second user equipment is different from the first user equipment.

In the fifth aspect, a communication device is provided, which may be the first network device in the above first aspect or any possible design of the first aspect, or a chip that implements the functions of the above first network device; the communication The device includes corresponding modules, units, or means (means) for realizing the above methods, and the modules, units, or means can be implemented by hardware, software, or by executing corresponding software on hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

The communication device includes a processing unit, a sending unit and a receiving unit. Wherein, the sending unit is configured to send the first information to the monitoring device, where the first information includes the predicted location of the first user equipment. The receiving unit is configured to receive positioning integrity assistance information from the monitoring device, wherein the positioning integrity assistance information is determined based on the predicted position of the first user equipment. A processing unit, configured to predict a location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information.

In a possible design, the receiving unit is further configured to receive second information from the first user equipment, where the second information includes a positioning integrity performance index, a predicted position of the first user equipment, and a location of the first user equipment. Error variance information. The processing unit is configured to predict the location integrity protection level PL according to the predicted location of the first user equipment and the location integrity auxiliary information, specifically including: predicting the location integrity protection level PL according to the second information and the location integrity auxiliary information.

In a possible design, the processing unit is configured to predict the location integrity protection level PL according to the second information and the location integrity auxiliary information, specifically including: predicting the first PL according to the second information and the location integrity auxiliary information and a second pl. The processing unit is further configured to determine, according to the first PL and the second PL, a positioning method and a reference device for locating the first user equipment.

In a possible design, the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device. The processing unit is configured to predict the first PL and the second PL according to the second information and the positioning integrity auxiliary information, including: predicting the first PL according to the second information and the error variance information of the first reference device; according to the second information and the error variance information of the second reference device to predict the second PL. Wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device. Alternatively, the first reference device is different from the second reference device.

In a possible design, before receiving the second information from the first user equipment, the sending unit is further configured to send a first request message to the first user equipment, where the first request message is used to request the first user equipment The device sends the second information.

In a possible design, the monitoring device is a second network device.

In a possible design, the first information is a location request message.

According to the sixth aspect, there is provided a communication device, which may be the monitoring device in any possible design of the above-mentioned second aspect or the second aspect, or a chip that realizes the functions of the above-mentioned monitoring device; the communication device includes the above-mentioned The corresponding module, unit, or means (means) of the method, the module, unit, or means can be realized by hardware, software, or by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

The communication device includes a processing unit, a sending unit and a receiving unit. Wherein, the processing unit is configured to control the receiving unit to receive the first information from the first network device, where the first information includes the predicted location of the first user equipment. The processing unit is further configured to control the sending unit to send positioning integrity auxiliary information to the first network device, wherein the positioning integrity auxiliary information is determined based on the predicted position of the first user equipment, and the positioning integrity auxiliary information is used to predict the positioning integrity Sexual protection level PL.

In a possible design, the communication device is the first reference device or the second reference device.

In a possible design, the communication device is a second network device.

In a possible design, the communication device is a second user equipment, where the second user equipment is different from the first user equipment.

In a possible design, the first information is a location request message.

In the seventh aspect, there is provided a communication device, which may be the first network device in the third aspect or any possible design of the third aspect, or a chip that implements the functions of the first network device above; the communication The device includes corresponding modules, units, or means (means) for realizing the above methods, and the modules, units, or means can be implemented by hardware, software, or by executing corresponding software on hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

The communication device includes a processing unit, a sending unit and a receiving unit. Wherein, the processing unit is configured to control the sending unit to send the first information to the monitoring device, where the first information includes the predicted location of the first user equipment. The processing unit is further configured to control the receiving unit to receive positioning integrity assistance information from the monitoring device, wherein the positioning integrity assistance information is determined based on the predicted position of the first user equipment.

In a possible design, the processing unit is further configured to predict the location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information.

In a possible design, the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device. The processing unit is configured to predict the first PL and the second PL according to the second information and the positioning integrity auxiliary information, specifically including: predicting the first PL according to the second information and the error variance information of the first reference device; Information and error variance information of the second reference device to predict the second PL; wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device; or, The first reference device is different from the second reference device.

In a possible design, the sending unit is further configured to send a first request message to the first user equipment before receiving the second information from the first user equipment, where the first request message is used to request the first user equipment The device sends the second information.

In an eighth aspect, there is provided a communication device, which may be the first user equipment in the fourth aspect or any possible design of the fourth aspect, or a chip that implements the functions of the first user equipment; the communication The device includes corresponding modules, units, or means (means) for realizing the above methods, and the modules, units, or means can be implemented by hardware, software, or by executing corresponding software on hardware. The hardware or software includes one or more modules or units corresponding to the above functions.

The communication device includes a processing unit, a sending unit and a receiving unit. Wherein, the receiving unit is configured to receive the positioning integrity auxiliary information from the monitoring device. The processing unit is configured to predict the location integrity protection level PL according to the predicted location of the communication device and the location integrity auxiliary information.

In a possible design, the processing unit is configured to predict the positioning integrity protection level PL according to the predicted position of the communication device and the positioning integrity auxiliary information, specifically including: according to the positioning integrity performance index and the error variance information of the communication device , the predicted position of the communication device and the positioning integrity auxiliary information, predicting the first PL and the second PL. The processing unit is further configured to determine, according to the first PL and the second PL, a positioning method and a reference device for locating the communication device.

In a possible design, the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device. The processing unit is configured to predict the first PL and the second PL according to the positioning integrity performance index, the error variance information of the communication device, the predicted position of the communication device, and the positioning integrity auxiliary information, specifically including: according to the positioning integrity performance index, The error variance information of the communication device, the predicted position of the communication device and the error variance information of the first reference device are used to predict the first PL; according to the positioning integrity performance index, the error variance information of the communication device, the predicted position of the communication device and the second reference The error variance information of the device, predicts the second PL. Wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device. Alternatively, the first reference device is different from the second reference device.

In a possible design, the sending unit is further configured to send the first information to the first network device, where, The first information includes information about a positioning method and a reference device for locating the communication device.

In a possible design, the monitoring device is a second network device.

In a possible design, the monitoring device is a second user device, wherein the second user device is different from the communication device.

In a ninth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device performs any of the above-mentioned aspects or any of the aspects. A method performed by the first network device in one possible design. The communication device may be the first network device in the above first aspect or any possible design of the first aspect, or may be the first network device in the above third aspect or any possible design of the third aspect , or a chip that implements the functions of the above-mentioned first network device.

In a tenth aspect, a communication device is provided, including: a processor; the processor is coupled to a memory, and is used to read and execute instructions in the memory, so that the communication device performs any or all of the above-mentioned aspects A method performed by the first network device in any possible design. The communication device may be the first network device in the above first aspect or any possible design of the first aspect, or may be the first network device in the above third aspect or any possible design of the third aspect , or a chip that implements the functions of the above-mentioned first network device.

In an eleventh aspect, a chip is provided, including a processing circuit and an input/output interface. Wherein, the input and output interface is used to communicate with modules other than the chip, for example, the chip may be a chip that implements the function of the first network device in the first aspect or any possible design of the first aspect. The processing circuit is used to run computer programs or instructions to implement the method in the above first aspect or any possible design of the first aspect. For another example, the chip may be a chip that implements the function of the first network device in the third aspect or any possible design of the third aspect. The processing circuit is used to run computer programs or instructions to implement the method in the above third aspect or any possible design of the third aspect.

In a twelfth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device performs any of the above-mentioned aspects or any of the aspects. One possible design monitors the method implemented by the device. The communication device may be the monitoring device in the above-mentioned second aspect or any possible design of the second aspect, or a chip that realizes the functions of the above-mentioned monitoring device.

In a thirteenth aspect, a communication device is provided, including: a processor; the processor is coupled with a memory, and is used to read and execute instructions in the memory, so that the communication device performs any of the above-mentioned aspects or any The method performed by the monitoring device in any possible design of the aspect. The communication device may be the monitoring device in the above-mentioned second aspect or any possible design of the second aspect, or a chip that realizes the functions of the above-mentioned monitoring device.

In a fourteenth aspect, a chip is provided, including a processing circuit and an input/output interface. Wherein, the input and output interfaces are used for communicating with modules other than the chip, for example, the chip may be a chip that implements the function of the monitoring device in the above-mentioned second aspect or any possible design of the second aspect. The processing circuit is used to run computer programs or instructions to implement the method in the above second aspect or any possible design of the second aspect.

In a fifteenth aspect, a communication device is provided, including: a processor and a memory; the memory is used to store computer instructions, and when the processor executes the instructions, the communication device performs any of the above-mentioned aspects or any of the aspects. A method performed by a first user equipment in one possible design. The communication device may be the first user equipment in the fourth aspect or any possible design of the fourth aspect, or a chip implementing the functions of the first user equipment.

In a sixteenth aspect, a communication device is provided, including: a processor; the processor is coupled to a memory, It is used to read and execute the instruction in the memory, so that the communication device executes the method executed by the first user equipment in any possible design of any aspect or any aspect above. The communication device may be the first user equipment in the fourth aspect or any possible design of the fourth aspect, or a chip implementing the functions of the first user equipment.

In a seventeenth aspect, a chip is provided, including a processing circuit and an input/output interface. Wherein, the input and output interface is used to communicate with modules other than the chip, for example, the chip may be a chip that implements the function of the first user equipment in the fourth aspect or any possible design of the fourth aspect. The processing circuit is used to run computer programs or instructions to implement the method in the above fourth aspect or any possible design of the fourth aspect.

In an eighteenth aspect, a computer-readable storage medium is provided. Instructions are stored in the computer-readable storage medium. When the computer-readable storage medium is run on a computer, the computer can execute the method in any one of the above-mentioned aspects.

In a nineteenth aspect, there is provided a computer program product containing instructions, which, when run on a computer, enable the computer to execute the method in any one of the above aspects.

In a twentieth aspect, a circuit system is provided, and the circuit system includes a processing circuit configured to execute the method according to any one of the above aspects.

Wherein, for the technical effect brought about by any one of the designs in the fifth aspect to the twentieth aspect, reference may be made to the beneficial effects in the corresponding method provided above, which will not be repeated here.

Description of drawings

FIG. 1 is a schematic structural diagram of a positioning system provided by an embodiment of the present application;

Figure 2a is a working principle diagram of a positioning method provided by the embodiment of the present application;

Fig. 2b is a working principle diagram of another positioning method provided by the embodiment of the present application;

Fig. 3 is a flow chart of a method for determining the positioning integrity result provided by the embodiment of the present application;

FIG. 4 is a method flowchart of an assisted positioning method provided in an embodiment of the present application;

Fig. 5 is a method flowchart of another auxiliary positioning method provided by the embodiment of the present application;

FIG. 6 is a method flow chart of another auxiliary positioning method provided in the embodiment of the present application;

FIG. 7 is a flowchart of another method for determining the result of positioning integrity provided by the embodiment of the present application;

FIG. 8 is a method flow chart of another auxiliary positioning method provided in the embodiment of the present application;

FIG. 9 is a method flow chart of another auxiliary positioning method provided in the embodiment of the present application;

FIG. 10 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of another communication device provided by an embodiment of the present application.

Detailed ways

The terms "first" and "second" in the specification and drawings of the present application are used to distinguish different objects, or to distinguish different processes for the same object, rather than to describe a specific sequence of objects. In addition, the terms "including" and "having" mentioned in the description of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also includes Other steps or elements inherent to the process, method, product or apparatus are included. It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used as examples, illustrations or descriptions. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Specifically, the use of "exemplary" or "example Words such as "are intended to present related concepts in a concrete way.

FIG. 1 is a schematic structural diagram of a positioning system provided by an embodiment of the present application. As shown in FIG. 1 , the positioning system includes user equipment (user equipment, UE) 11, reference equipment 12, monitoring equipment 13 and core network equipment 14.

User equipment 11 includes equipment that provides voice and/or data connectivity to users, specifically, equipment that provides voice to users, or equipment that provides data connectivity to users, or equipment that provides voice and data connectivity to users device of. Examples may include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. The user equipment can communicate with the core network via a radio access network (radio access network, RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN. The user equipment may include terminal equipment, wireless user equipment, mobile user equipment, device-to-device communication (device-to-device, D2D) user equipment, vehicle to everything (vehicle to everything, V2X) user equipment, machine-to-machine/machine communication (machine-to-machine/machine-type communications, M2M/MTC) user equipment, Internet of things (internet of things, IoT) user equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station ( mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), Or user equipment (user device), etc. For example, may include mobile telephones (or "cellular" telephones), computers with mobile user equipment, portable, pocket, hand-held, computer built-in mobile devices, and the like. For example, personal communication service (PCS) telephone, cordless telephone, session initiation protocol (session initiation protocol, SIP) telephone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA) and other devices. Also includes constrained devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities, etc. For example, it includes barcodes, radio frequency identification (radio frequency identification, RFID), sensors, global positioning system (global positioning system, GPS), laser scanners and other information sensing devices.

However, if the various user equipments described above are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), they can be considered as vehicle-mounted user equipment, and the vehicle-mounted user equipment is also called an on-board unit (OBU). ).

In this embodiment of the present application, the user equipment may further include a relay (relay). Or it can be understood that all those capable of performing data communication with the base station can be regarded as user equipment.

In this embodiment of the present application, the device for implementing the function of the user equipment may be the user equipment, or may be a device capable of supporting the user equipment to implement the function, such as a chip system, and the device may be installed in the user equipment. In the embodiment of the present application, the system-on-a-chip may be composed of chips, or may include chips and other discrete devices. In the technical solutions provided in the embodiments of the present application, the device for implementing the functions of the terminal is taken as an example to introduce the user equipment.

The reference device 12 is configured to provide a positioning reference point, so that the core network device 14 locates the user equipment 11 based on the reference point. As a possible implementation manner, the reference device 12 may be an access network device. Wherein, the access network device may be an access point for wireless communication or wired communication, such as a transmit and receive point (TRP), a roadside unit (road side unit, RSU), a base station or a base station controller, a wireless fidelity (wireless-fidelity, wifi) access point or wifi controller, or access point for fixed network access, etc. Wherein, the base station may include various types of base stations, for example: micro base stations (also called small stations), macro base stations, relay stations, access points etc., which are not specifically limited in this embodiment of the present application. In the embodiment of the present application, the base station may be a base transceiver station (BTS) in a global system for mobile communication (GSM), code division multiple access (CDMA), broadband Base station (node B) in code division multiple access (wideband code division multiple access, WCDMA), evolved base station (evolutional node B, eNB or e-NodeB) in long term evolution (long term evolution, LTE), IoT ( Internet of things (IoT) or eNB in narrowband-internet of things (NB-IoT), the fifth generation (5G) mobile communication network or future evolution of public land mobile network (public land mobile network) A base station in a mobile network (PLMN), which is not limited in this embodiment of the present application. In this case, the communication between the user equipment 11 and the reference equipment 12 is performed through the Uu interface.

As another possible implementation manner, the reference device 12 may be a user device. For details, refer to the introduction of the user device 11 , which will not be repeated here. In this case, the communication between the user equipment 11 and the reference equipment 12 is performed through the PC5 interface.

It should be noted that the reference device may also have other names, such as reference station. In the embodiment of this application, only the reference device is used as an example for introduction, and a unified description will be made here, and will not be repeated in the future.

The monitoring device 13 is used for monitoring the reference device 12 . As a possible implementation manner, the monitoring device 13 may be an access network device, and reference may be made to the introduction of the reference device 12, which will not be repeated here. As another possible implementation manner, the monitoring device 13 may be a user device. For details, refer to the introduction of the user device 11 , which will not be repeated here.

It should be noted that monitoring equipment may also have other names, such as monitoring station. In this embodiment of the application, only monitoring equipment is used as an example for introduction, and a unified description will be made here, and will not be repeated hereafter.

The core network device 14 includes an access and mobility management function (access and mobility management function, AMF) network element, a location management function (location management function, LMF) network element, and the like. Among them, the AMF network element can realize functions such as a gateway, and the LMF network element can realize functions such as a positioning center, such as performing positioning calculation on the UE according to the measurement results of other network elements, and the AMF network element and the LMF network element can communicate. For example, an AMF network element and an LMF network element may be connected through an NLs interface. Among them, the main functions of the AMF network element include: connection management, mobility management, registration management, access authentication and authorization, reachability management, security context management and other functions related to access and mobility. The LMF network element is a device or component deployed in the core network to provide positioning functions for user equipment.

It should be understood that both the access network device and the core network device belong to network devices. In the case that the reference device 12 is implemented as an access network device, and the monitoring device 13 is also implemented as an access network device, the reference device 12, the monitoring device 13 and the core network device 14 belong to network devices.

In order to facilitate understanding of the embodiments of the present application, terms involved in the embodiments of the present application will be briefly described below. It should be understood that these descriptions are only for understanding the embodiments of the present application, and shall not constitute any limitation to the present application.

1. Positioning method

In this embodiment of the application, the positioning method refers to the positioning technology defined in the communication protocol, such as time difference of arrival (TDOA) positioning technology, round-trip time (round-trip time, RTT) positioning technology, etc.

TDOA realizes positioning by measuring the transmission delay difference between user equipment and multiple reference equipment.

As shown in Figure 2a, the reference device is implemented as a base station. Among them, reference device 1 and reference device 2 send user equipment Send a positioning reference signal (positioning reference signal, PRS), so that the distance difference between the reference device 1 and the reference device 2 and the user equipment is R21, and the two reference devices (ie, the reference device 1 and the reference device 2) are the focus , The hyperbola 2-1 whose distance difference from the two focal points is always R21. The user equipment is located on the hyperbola 2-1. Similarly, the reference device 1 and the reference device 3 send PRS to the user equipment, so that the distance difference between the reference device 1 and the reference device 3 and the user equipment is R31, and the two reference devices (that is, the reference device 1 and the reference device 3) is the hyperbola 3-1 of the focal point, and the distance difference between the two focal points is always R31. The user equipment is located on the hyperbola 3-1. The intersection between the hyperbola 2-1 and the hyperbola 3-1 represents the estimated location of the user equipment. Since an accurate time delay difference is required, clock synchronization among the reference device 1 , the reference device 2 and the reference device 3 is required.

RTT is to obtain the round-trip transmission time by sending positioning reference signals back and forth to achieve positioning without clock synchronization.

As shown in Fig. 2b, reference signals are sent back and forth between the reference device 1 and the user equipment, so as to obtain the time of flight (time of flight, TOF) between the two reference devices 1 and the user equipment. Among them, TOF satisfies the following formula:

Among them, TOF represents the time of flight, _TA1 represents the time when the reference device 1 sends the reference signal to the user equipment, _TB1 represents the time when the user equipment receives the reference signal from the reference device 1, and _TB2 represents the time when the user device sends the reference signal to the reference device 1 T _A2 represents the time when reference device 1 receives the reference signal from the user equipment. The time of flight between the reference device 1 and the user device is multiplied by the speed of light to obtain the distance between the reference device 1 and the user device.

Similarly, based on the same processing manner, the distance between the reference device 2 and the user equipment, and the distance between the reference device 3 and the user equipment are obtained. Then, based on the principle of triangulation positioning, the estimated position of the user equipment is obtained.

2. Positioning integrity

Positioning integrity refers to the ability of the positioning system to give an alarm message in time when the positioning error of the positioning system exceeds the allowable threshold. Positioning integrity is used to characterize the confidence measure of the positioning system for positioning accuracy.

Below, an example of positioning integrity performance indicators is introduced:

The alert limit (alert limit, AL) refers to the maximum positioning error allowed by the positioning system to meet the expected application requirements. Wherein, AL is preset and related to specific services, for example, different services correspond to different ALs. Exemplarily, the AL corresponding to service 1 is denoted as AL1, and the AL corresponding to service 2 is denoted as AL2.

The protection level (PL) refers to the statistical upper limit of the positioning error under the positioning integrity performance index. Among them, PL is calculated and related to the positioning method and reference equipment. For example, the selected positioning methods are different, and the calculated PL is different. The selected reference equipment is different, and the calculated PL is also different.

Exemplarily, as shown in FIG. 3 , the positioning observation data is related to the positioning mode. Exemplarily, taking the TDOA positioning technology as an example, the positioning observation data may include the above distance difference R21 and the above distance difference R31. Taking the RTT positioning technology as an example, the positioning observation data may include the above-mentioned time of flight TOF, or the positioning observation data may include the above-mentioned time T _A1 , time T _A2 , time T _B1 and time T _B2 . The positioning observation data can be monitored by the user equipment to provide to the network device (such as the LMF network element), and can also be monitored by the reference device to be provided to the network device. The reference device coordinates are the position coordinates of the reference device. The error variance information σ ² may be the error variance of the reference device. For example, in the TDOA positioning mode, the error variance information σ ² may include clock synchronization error variance and multipath error variance. set in RTT In bit mode, error variance information σ ² may include multipath error variance. The network device may determine a pseudo-range observation linearization model based on the positioning observation data and the reference device coordinates, and then determine a slope (SLOPE) based on the pseudo-range observation linearization model. The network device determines p _bias based on error variance information σ ² , miss detection probability, false alarm probability and degree of freedom information, and then determines positioning integrity PL based on p _bias and slope (SLOPE). When PL>AL, the network device determines that the positioning solution is unavailable. On the contrary, when PL≦AL, the network device determines that the positioning solution is available.

In view of this, the embodiment of the present application provides two auxiliary positioning methods (namely, the first auxiliary positioning method and the second auxiliary positioning method described below). The auxiliary positioning method in the embodiment of the present application is applicable to the system shown in FIG. 1, such as RAT-dependent positioning scenarios. In the embodiment of the present application, the positioning method refers to the positioning technology defined in the communication protocol, such as the TDOA positioning technology, the RTT positioning technology, and the like. The positioning scheme refers to positioning based on information provided by multiple reference devices in a certain positioning mode. That is to say, if the selected positioning methods are different, the positioning schemes will be different, and/or if the selected reference devices are different, the positioning schemes will be different. The names of messages between network elements or the names of parameters in messages in the following embodiments of the present application are just examples, and may be other names in specific implementations. The description is unified here, and will not be described in detail below.

The first auxiliary positioning method provided by the embodiment of the present application is applied to the first network device. In the first assisted positioning method provided in the embodiment of the present application, the first network device sends first information to the monitoring device, where the first information includes a predicted position of the first UE. Afterwards, the first network device receives the positioning integrity assistance information from the monitoring device, where the positioning integrity assistance information is determined based on the predicted position of the first UE. Then, the first network device predicts the positioning integrity PL corresponding to different positioning schemes according to the predicted position of the first UE and the positioning integrity assistance information. Finally, based on the predicted PL, the first network device selects a positioning scheme whose predicted positioning integrity PL satisfies the positioning integrity performance index and has low positioning processing complexity. The advantage of the first assisted positioning method provided by the embodiment of the present application is that, on the one hand, the positioning integrity auxiliary information is determined based on the predicted position of the first UE, so the positioning integrity auxiliary information can better reflect the first UE reality of the environment. On the other hand, the first assisted positioning method provided by the embodiment of the present application adds the process of predicting PL, and selects a positioning scheme based on the predicted PL, that is, the positioning method and reference equipment used to locate the first UE, thus taking into account both The positioning integrity performance index also considers the positioning processing complexity.

Next, with reference to FIG. 4 to FIG. 7 , the first auxiliary positioning method provided by the embodiment of the present application is introduced:

As shown in FIG. 4, the first auxiliary positioning method 400 provided in the embodiment of the present application includes the following steps:

S401. The first network device sends first information to the monitoring device. Correspondingly, the monitoring device receives first information from the first network device.

Wherein, the first information includes predicted location information of the first UE. Exemplarily, the predicted location information of the first UE may be the predicted coordinates, denoted as

Exemplarily, the first network device may be an LMF network element, or another network element with a positioning function, which is not limited in this embodiment of the present application. The monitoring device may be a second network device, such as an access network device, or a second UE. Wherein, the first UE is different from the second UE.

As a possible implementation, when the monitoring device is the second network device, the first information in S401 is carried in an integrity information request (Integrity Information Request) information element (information element, ie). Wherein, the integrity information request information element is an information element in the following messages: a positioning information request (POSITIONING INFORMATION REQUEST) message, or a sending and receiving node information request (TRP INFORMATION REQUEST) message. That is to say, the first network device sends the first information to the monitoring device through a location information request message. Alternatively, the first network device sends the first information to the monitoring device by sending and receiving a node information request message.

As another possible implementation manner, in the case that the monitoring device is the second UE, the first information in S401 is carried in an integrity information assisted data (Integrity assisted data) information element. Wherein, the integrity information auxiliary data cell is a cell in a request location information (Request Location Information) message. That is to say, the first network device sends the first information to the monitoring device through a location request message.

It should be understood that, in addition to the information element or message introduced above, the first information may also be carried in other information elements or other messages, which is not limited in this embodiment of the present application.

Optionally, as shown in FIG. 5, the first network device also performs S404:

S404. The first UE sends the second information to the first network device. Correspondingly, the first network device receives the second information from the first UE.

Wherein, the second information includes at least the predicted location of the first UE. Exemplarily, for the predicted location of the first UE, refer to the introduction of the first information in S401, which will not be repeated here.

In some embodiments, the first UE may determine the predicted location of the first UE in the following two manners (such as the following manner 1 and manner 2).

Mode 1, the predicted position of the first UE may be a coordinate estimated through measurement. Exemplarily, the first UE estimates the location at the current moment by combining the location information before the current moment and the measurement information of the inertial navigation system. The position of the first UE at time 1 is recorded as position 1, and time 1 is a time before the current time. The measurement information of the inertial navigation may include the speed of the first UE. The first UE estimates the position of the first UE at the current time based on the time length between the current time and time 1 and the speed of the first UE, that is, the predicted position of the first UE.

Mode 2, based on the fixed route and the coordinates determined at the current moment. For example, for applications such as material tracking, at a specific moment, the material appears at a specific location, so the first UE determines the predicted location based on the time point. In this case, the predicted location is the location where the material is expected to appear. In the embodiment of the present application, the location where the material is expected to appear may be understood as the predicted location of the first UE.

Optionally, the second information further includes a positioning integrity performance index and/or error variance information of the first UE. Exemplarily, the positioning integrity performance index includes at least one of the following: AL, probability of missed detection, and probability of false alarm. The AL, probability of missed detection, and probability of false alarm in the second information are related to the service of the first UE. Taking AL as an example, the services performed by the first UE include service 1. Correspondingly, AL in the second information is related to service 1. In the embodiment of the present application, the false alarm probability may also be described as the false detection probability. In the embodiment of the present application, only the false alarm probability is used as an example for introduction.

Exemplarily, the error variance information of the first UE includes measurement error variance information of the first UE and the noise error variance information of the first UE In the case where the positioning method is TDOA, the measurement error variance information of the first UE It may include an error generated by the first UE measuring the PRS (such as the receiving moment of the PRS), for example, an error generated by the first UE measuring T _B1 and T _B2 . Noise error variance information of the first UE The positioning error variance caused by the thermal noise of the first UE is related to the hardware performance of the first UE, and will not be repeated here.

Optionally, the second information in S404 may be carried in a location request message, that is, the first UE requests The message sends the second information to the first network device. Correspondingly, the first network device receives the second information from the first UE through a location request message. Alternatively, the second information in S404 may also be carried in an integrity information (Integrity Information) information element. Wherein, the integrity information information element is an information element in a Provide Location Information (Provide Location Information) message. That is to say, the first UE sends the second information to the first network device through the location information providing message. Certainly, the second information may also be carried in other information elements or other messages, which is not limited in this embodiment of the present application.

It should be understood that S404 is an optional step. In some embodiments, the first UE predicts its own location to obtain the predicted location of the first UE. In this case, the first UE performs S404. In other embodiments, other network elements, such as the first network device, predict the location of the first UE to obtain the predicted location of the first UE. In this case, S404 does not need to be executed.

It should be noted that, when S404 is executed, as a possible implementation manner, as shown in the dotted box in "Mode 1" in Figure 5, when the first UE needs to locate itself, the first UE Execute S404. Alternatively, the positioning system presets a period for the first UE to report the second information, and the first UE performs S404 according to the preset period. In this case, the first network device acquires second information that is more in line with the current environment where the first UE is located. As another possible implementation, as shown in the dotted box in "Mode 2" in Figure 5, when the first network device needs to locate the first UE, perform S405:

S405. The first network device sends a first request message to the first UE. Correspondingly, the first UE receives the first request message from the first network device.

Wherein, the first request message is used to request the first UE to send the second information. Exemplarily, the first request message may be a request location information (Request Location Information) message. Wherein, the location information request message includes an integrity information request (Integrity Information Request) information element, so as to request the first UE to send the second information.

For the first UE, the first UE executes S404 in response to the first request message, which can not only enable the first network device to obtain the second information in time, but also avoid the problem of low utilization of transmission resources caused by frequent reporting of the second information .

For the monitoring device, after receiving the first information, the monitoring device executes S402:

S402. The monitoring device sends positioning integrity auxiliary information to the first network device. Correspondingly, the first network device receives the positioning integrity assistance information from the monitoring device.

Wherein, the positioning integrity assistance information is determined based on the predicted location information of the first UE.

Exemplarily, for a monitoring device, after receiving the first information, the monitoring device determines k reference devices according to the predicted position of the first UE, which are respectively denoted as reference device 1, reference device 2, reference device 3, ..., reference device k. The distance between each of the k reference devices and the predicted position of the first UE is less than or equal to a preset value. The positioning integrity auxiliary information includes error variance information of each reference device in the plurality of reference devices.

Exemplarily, taking the error variance information of a reference device (such as the i-th reference device, where i is an integer, 1≤i≤k) as an example, the positioning integrity auxiliary information is introduced: the positioning integrity auxiliary information includes The clock synchronization error variance information of the i-th reference device The i-th reference device data error variance information and the multipath error variance information of the i-th reference device Among them, the clock synchronization error variance information of the i-th reference device It can be understood as the error variance information between the i-th reference device's own clock and the absolute clock. The i-th reference device data error variance information It can be understood as the error between the position coordinates of the i-th reference device and the real coordinates, and the error variance between the height and other information of the i-th reference device and the real height. Multipath error variance information of the i-th reference device It can be understood as the multipath error variance information between the i-th reference device and the monitoring device. The error variance information of other reference devices can be deduced by analogy.

S403. The first network device predicts the location integrity PL according to the predicted location of the first UE and the location integrity assistance information.

For the predicted location of the first UE, refer to the introduction of S401, and for the positioning integrity assistance information, refer to the introduction of S402, which will not be repeated here.

Exemplarily, the first network device predetermines a positioning method and selected multiple reference devices, and then selects a required part of information from the positioning integrity auxiliary information received in S402 to predict the positioning integrity PL. For example, still taking the i-th reference device as an example, when the positioning method is TDOA, the positioning integrity auxiliary information used to predict the positioning integrity PL includes the clock synchronization error variance information of the i-th reference device The i-th reference device data error variance information and the multipath error variance information of the i-th reference device When the positioning method is RTT, the positioning integrity auxiliary information used to predict the positioning integrity PL includes the i-th reference device data error variance information and the multipath error variance information of the i-th reference device The error variance information of other reference devices can be deduced by analogy. The value of i is related to the reference device selected by the first network device. That is to say, if the positioning mode selected by the first network device is different, the positioning integrity auxiliary information used to predict the positioning integrity PL is different. Or, if the reference devices selected by the first network device are different, the positioning integrity auxiliary information used to predict the positioning integrity PL is also different.

Optionally, as shown in FIG. 5, when the first network device executes S404, S403 is implemented as S4031:

S4031. The first network device predicts the PL of the positioning integrity according to the second information and the positioning integrity auxiliary information.

Wherein, for the second information, refer to the introduction of S404, which will not be repeated here.

Exemplarily, the PL predicted in S4031 may be two or more. Taking two PLs as an example, they are respectively recorded as the first PL and the second PL. That is to say, as shown in Figure 6, S4031 is implemented as S40311:

S40311. The first network device predicts the first PL and the second PL according to the second information and the positioning integrity assistance information.

Exemplarily, S40311 can be implemented as step a and step b:

In step a, the first network device predicts the first PL according to the second information and the error variance information of the first reference device.

Exemplarily, still taking k reference devices as an example, the first reference device may include one or more reference devices in the above k reference devices, for example, n reference devices. For example, the first reference device includes reference device 1, reference device 2, reference device 3..., reference device n.

Exemplarily, when the positioning method is TDOA, the error variance information of the first reference device includes clock synchronization error variance information of the first reference device, data error variance information of the first reference device, and multipath error information of the first reference device variance information. In a case where the positioning mode is RTT, the error variance information of the first reference device includes data error variance information of the first reference device and multipath error variance information of the first reference device.

Exemplarily, as shown in FIG. 7 , for a certain positioning mode and a reference device in this positioning mode, the first network device bases the predicted position of the first UE (such as the predicted coordinates of the first UE) on the basis of the real coordinates of the reference device. and error variance information (such as the sum of the error variance information of the first UE and the error variance information of the first reference device) determined Linearized model for pseudorange observations. Exemplarily, the pseudorange observation linearization model satisfies the following formula:

Y＝HX+ε formula (2)

where Y represents the distance difference between the predicted position of the first UE and the real coordinates of the reference device, X represents the difference between the predicted position of the first UE and the real position of the first UE, H represents the observation matrix, and ε represents the error variance information .

Among them, the observation matrix H satisfies the following formula:

in, Indicates the predicted coordinates of the first UE on the x-axis, Indicates the predicted coordinates of the first UE on the y-axis, Represents the predicted coordinates of the first UE on the z-axis, x _i represents the real coordinates of the i-th reference device on the x-axis, y _i represents the real coordinates of the i-th reference device on the y-axis, z _i represents the i-th reference device on the The real coordinate of the z-axis, i is an integer, 1≤i≤k.

Among them, the error variance information ε satisfies the following formula:

Exemplarily, in the TDOA positioning mode, i is an integer, 1≤i≤k, Indicates the clock synchronization error variance information of the i-th reference device, Indicates the i-th reference device data error variance information, Indicates the multipath error variance information of the i-th reference device, Indicates the measurement error variance information of the first UE, Indicates noise error variance information of the first UE.

It should be noted that, in the embodiment of the application, the error variance information of the first UE, such as and It may be provided by the first UE to the first network device. For details, refer to the situation in S404 that the second information includes the error variance information of the first UE. Of course, in the case that the second information does not include the error variance information of the first UE, the error variance information of the first UE may also be determined by the first network device independently. For example, the first network device selects some general values to Error variance information characterizing the first UE. Wherein, the general value selected by the first network device may be a value frequently used by the first network device in the historical PL prediction process.

Then, the first network device predicts based on the error method information (such as the sum of the error variance information of the first UE and the error variance information of the first reference device), missed detection probability, degree of freedom, false alarm probability and pseudo-range observation linearization model First PL. Exemplarily, the first PL satisfies the following formula:

in, denotes the first PL, Represents the maximum value operator from n parameters, Indicates the square value of the elements in the first row and i-th column in the matrix A, Indicates the square value of the element in the second row and column i in the matrix A, Indicates the square value of the element in the third row and column i in matrix A, S _ii indicates the element in row i and column i in matrix S, λ represents the non-central parameter of the non-central chi-square distribution with degrees of freedom na, and λ can be determined based on the probability of missed detection and the probability of false alarm.

It should be noted that, in the embodiment of the present application, the description of the degree of freedom is as follows: the degree of freedom is n−a. Wherein, n represents the number of first reference devices, and a represents a constant. For example, when determining the two-dimensional coordinates of the first UE, the value of a is 3. Correspondingly, n is a positive integer, and n≥3. For another example, when determining the three-dimensional coordinates of the first UE, the value of a is 4. Correspondingly, n is a positive integer, and n≥4. In the embodiment of the present application, only three-dimensional coordinate positioning is taken as an example for introduction.

In the embodiment of this application, the introduction of the missed detection probability is as follows: the missed detection probability can be provided by the first UE to the first network device. For details, see the second information in S404 including the positioning integrity performance index, and the positioning integrity performance index in the second information. Integrity performance indicators include probability of missed detection. Certainly, in the case that the second information does not include the probability of missed detection, the probability of missed detection may also be determined by the first network device independently. Exemplarily, there is a corresponding relationship between different services and missed detection probabilities, for example, service 1 corresponds to missed detection probability 1, and service 2 corresponds to missed detection probability 2. When the first network device has learned the service of the first UE, if the service of the first UE is the above-mentioned service 1, the first network device then combines the corresponding relationship between different services and the missed detection probability to determine the missed detection probability as the above missed detection probability Detection probability 1. Similarly, if there is a corresponding relationship between different services and the false alarm probability, even if the second information does not include the false alarm probability, the first network device can independently determine the false alarm probability through the above process. In the case that there is a corresponding relationship between different services and the AL, even if the second information does not include the AL, the first network device can independently determine the AL through the above process. Among them, the matrix A satisfies the following formula:

A＝(H ^T WH) ^-1 H ^T W Formula (6)

Among them, H represents the observation matrix, the specific calculation process can refer to the formula (3),

Wherein, the matrix S is determined based on the pseudorange residual matrix determined based on formula (2) to formula (4). Among them, the pseudorange residual matrix satisfies the following formula:
ω＝(IH(H ^T WH) ^-1 H ^T W)ε＝Sε＝(H ^T WH) ^-1 H ^T W Formula (7)

Among them, ω represents the pseudorange residual matrix, I represents the identity matrix, H represents the observation matrix, W can refer to the introduction of formula (6), ε represents the error variance information, can refer to the introduction of formula (3), and will not repeat them here .

Based on formula (7), the matrix S satisfies the following formula:

S＝IH(H ^T WH) ^-1 H ^T W formula (8)

Wherein, I represents the identity matrix, H represents the observation matrix, W can refer to the introduction of formula (6), and will not be repeated here.

Step b. The first network device predicts the second PL according to the second information and the error variance information of the second reference device.

Wherein, as a possible implementation manner, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device.

Exemplarily, still taking k reference devices as an example, the first reference device includes the above-mentioned reference device 1 , reference device 2 and reference device 3 . Correspondingly, the second reference device includes the above-mentioned reference device 1, reference device 2 and reference device Prepare 3. In the case that the positioning mode TDOA is adopted in step a, the positioning mode adopted in step b may be RTT. Correspondingly, the error variance information of the first reference device includes clock synchronization error variance information of the first reference device, data error variance information of the first reference device, and multipath error variance information of the first reference device. The error variance information of the second reference device includes data error variance information of the second reference device and multipath error variance information of the second reference device. In the case that the positioning mode RTT is adopted in step a, the positioning mode adopted in step b may be TDOA. Correspondingly, the error variance information of the first reference device includes data error variance information of the first reference device and multipath error variance information of the first reference device. The error variance information of the second reference device includes clock synchronization error variance information of the second reference device, data error variance information of the second reference device, and multipath error variance information of the second reference device.

Wherein, as another possible implementation manner, the first reference device is different from the second reference device, and it may be understood that the number of the first reference device is different from that of the second reference device. Alternatively, the number of the first reference device and the second reference device are the same, but specific reference devices included in the first reference device and the second reference device are different.

Exemplarily, still taking k reference devices as an example, the first reference device includes the above-mentioned reference device 1, reference device 2, and reference device 3, and the second reference device includes the above-mentioned reference device 1 and reference device 2, or, the second reference device The device includes the above reference device 2 and the reference device 3, or the second reference device includes the above reference device 3 and the reference device 4, or the second reference device includes the above reference device 2, the reference device 3 and the reference device 4, or, the second reference device The two reference devices include the above reference device 1 , reference device 2 , reference device 3 and reference device 4 .

Exemplarily, when the positioning method is TDOA, the error variance information of the second reference device includes clock synchronization error variance information of the second reference device, data error variance information of the second reference device, and multipath error information of the second reference device variance information. In a case where the positioning mode is RTT, the error variance information of the second reference device includes data error variance information of the second reference device and multipath error variance information of the second reference device.

Exemplarily, for the process of calculating the second PL in step b, refer to the introduction of step a, which will not be repeated here.

Correspondingly, when the first network device executes S40311, the first network device also executes S406:

S406. The first network device determines, according to the first PL and the second PL, a positioning manner and a reference device for locating the first UE.

Exemplarily, the first network device selects a PL from the first PL and the second PL according to preset conditions, uses the positioning method corresponding to the selected PL as the positioning method for locating the first UE, and uses the selected PL corresponding to The reference device of is used as a reference device for locating the first UE. Among them, the preset conditions satisfied by the selected PL include one or more of the following:

Preset condition 1, the selected PL is less than or equal to AL. Exemplarily, taking the selected PL as an example, the first PL is smaller than AL, or the first PL is equal to AL.

Preset condition 2, the number of reference devices corresponding to the selected PL is small. Exemplarily, still using the example that the selected PL is the first PL, the reference device corresponding to the first PL may refer to the first reference device in step a. Correspondingly, the unselected PL may be the above-mentioned second PL. The reference device corresponding to the second PL may refer to the second reference device in step b. The number of reference devices of the first reference device is smaller than the number of reference devices of the second reference device.

Preset condition 3, the number of measurements of the selected PL corresponding to the positioning scheme is relatively small. Exemplarily, when the positioning method is TDOA, a PRS measurement is performed between the first UE and each reference device, as shown in FIG. 2a Show. When the positioning mode is RTT, two PRS measurements are performed between the first UE and each reference device, as shown in FIG. 2b. In this way, taking the same number of reference devices corresponding to the first PL and the second PL as an example, if the first PL corresponds to the above-mentioned TDOA positioning method, and the second PL corresponds to the above-mentioned RTT positioning method, then the selected PL is the above-mentioned first PL.

It should be understood that, in the embodiment of the present application, only the above three preset conditions are taken as examples for introduction, and of course, the preset conditions may also include other conditions, which are not limited in the embodiment of the present application. When the preset conditions include the above two or more conditions, each preset condition can be configured with a priority, and the selected PL at least satisfies the preset condition with a higher priority. For the first PL and the second PL, the more preset conditions are met, the higher the possibility of being selected. For example, the first PL satisfies the aforementioned preset condition 1, preset condition 2, and preset condition 3, and the second PL satisfies the aforementioned preset condition 1 and preset condition 2. In this case, the selected PL is the aforementioned first pl.

In this way, the positioning method and the reference device used for positioning the first UE are determined based on at least two PLs, so as to better take into account the positioning integrity performance index and the processing complexity of the positioning measurement performed by the first UE. In this case, the positioning method and the reference device determined by the first network device not only meet the positioning integrity performance index, but also reduce the processing complexity of the positioning measurement performed by the first UE.

It should be understood that in the embodiment of the present application, the monitoring device and the reference device may be different devices. Of course, monitoring equipment can also serve as reference equipment. For example, the monitoring device is the above-mentioned first reference device, or may be the second reference device, which is not limited in this embodiment of the present application.

The second assisted positioning method provided in the embodiment of the present application is applied to the first UE. In the second assisted positioning method provided in the embodiment of the present application, the first UE receives the positioning integrity assistance information from the monitoring device. Then, the first UE predicts the positioning integrity PL corresponding to different positioning schemes according to the predicted position of the first UE and the positioning integrity assistance information. Finally, the first UE proposes to the first network device a positioning scheme whose predicted positioning integrity PL satisfies the positioning integrity performance index and has low positioning processing complexity. The advantage of the second assisted positioning method provided by the embodiment of the present application is that, on the one hand, part or all of the positioning integrity auxiliary information can better reflect the real situation of the environment where the first UE is located. On the other hand, the second assisted positioning method provided by the embodiment of the present application adds the process of predicting PL, and then, based on the positioning scheme corresponding to the predicted PL, the first UE suggests to the first network device the The positioning method and the reference device not only take into account the positioning integrity performance index, but also consider the processing complexity of the positioning measurement performed by the first UE.

Next, with reference to FIG. 8 to FIG. 9 , the second auxiliary positioning method provided by the embodiment of the present application is introduced:

As shown in FIG. 8, the second assisted positioning method 800 provided in the embodiment of the present application includes the following steps:

S801. The monitoring device sends positioning integrity assistance information to the first UE. Correspondingly, the first UE receives the positioning integrity assistance information from the monitoring device.

Exemplarily, the positioning integrity auxiliary information in S801 includes: clock synchronization error variance information Reference device data error variance information and multipath error variance information For each specific parameter, refer to the introduction of S402, which will not be repeated here.

Exemplarily, the monitoring device may send the positioning integrity assistance information to the first UE in a broadcast manner. The positioning integrity assistance information may be carried in a system information block (system information block, SIB).

S802. The first UE predicts the positioning integrity PL according to its own predicted position and the positioning integrity auxiliary information.

Exemplarily, the first UE predetermines a positioning method and selected multiple reference devices, and then selects a required part of information from the positioning integrity assistance information received in S801 to predict the positioning integrity PL. Alternatively, the first UE predicts the positioning integrity PL according to its own predicted position and all information of the positioning integrity assistance information. Wherein, the positioning integrity assistance information used for predicting the PL is determined based on the predicted position of the first UE. That is to say, the first UE selects multiple reference devices based on its own predicted position, and the positioning integrity assistance information used for predicting PL includes error variance information of each of the multiple reference devices. For the process of predicting the PL by the first UE, reference may be made to the introduction of S403, which will not be repeated here.

Optionally, the PL predicted in S802 includes the first PL and the second PL. For the specific process, refer to the introduction of S40311, which will not be repeated here. In this case, as shown in Figure 9, the first UE also performs S803:

S803. The first UE determines, according to the first PL and the second PL, a positioning method and a reference device for locating the first UE.

Wherein, for the implementation process of S803, refer to the introduction of S406, which will not be repeated here.

Optionally, when the first UE performs S803, the first UE also performs S804:

S804. The first UE sends third information to the first network device. Correspondingly, the first network device receives the third information from the first UE.

Wherein, the third information includes information about a positioning method and a reference device for locating the first UE, so as to suggest the positioning method and reference device to the first network device. Exemplarily, the third information may be carried in the positioning request message, and the third information may also be carried in other messages, which is not limited in this embodiment of the present application.

Correspondingly, for the first network device, the first network device refers to the third information to determine the positioning method and reference device for locating the first UE, so as to meet the positioning integrity requirements and reduce the processing complexity of the first UE .

The foregoing mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various network elements. Correspondingly, the embodiment of the present application further provides a communication device, and the communication device may be the network element in the foregoing method embodiment, or a device including the foregoing network element, or may be a component applicable to the network element. It can be understood that, in order to realize the above functions, the communication device includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Exemplarily, FIG. 10 shows a schematic structural diagram of a communication device 1000 . The communication device 1000 includes a processing unit 1001 , a sending unit 1002 and a receiving unit 1003 .

In a possible example, taking the communication device 1000 as the first network device as an example, the processing unit 1001 is configured to support the first network device to execute S403 in FIG. 4 , and/or the first network device in this embodiment of the application needs to execute other processing operations. The sending unit 1002 is configured to support the first network device to perform S401 in FIG. 4 , and/or other sending operations that need to be performed by the first network device in this embodiment of the present application. The receiving unit 1003 is configured to support the first network device to perform S402 in FIG. 4 , and/or other receiving operations that need to be performed by the first network device in the embodiment of the present application.

In another possible example, taking the communication device 1000 as an example of a monitoring device, the processing unit 1001 is configured to support other processing operations that need to be performed by the monitoring device in the embodiment of the present application. The sending unit 1002 is configured to support the monitoring device to perform S402 in FIG. 4 , and/or other sending operations that the monitoring device needs to perform in the embodiment of the present application. take over Unit 1003 is configured to support the monitoring device to perform S401 in FIG. 4 , and/or other receiving operations that the monitoring device needs to perform in this embodiment of the application.

In another possible example, taking the communication device 1000 as a monitoring device as an example, the processing unit 1001 is configured to support other processing operations that need to be performed by the monitoring device in the embodiment of the present application. The sending unit 1002 is configured to support the monitoring device to perform S801 in FIG. 8 , and/or other sending operations that the monitoring device needs to perform in the embodiment of the present application. The receiving unit 1003 is configured to support other receiving operations that need to be performed by the monitoring device in the embodiment of the present application.

In another possible example, taking the communication device 1000 as the first UE as an example, the processing unit 1001 is configured to support the first UE to perform S802 in FIG. 8, and/or other tasks that the first UE needs to perform in this embodiment of the application Processing operations. The sending unit 1002 is configured to support other sending operations that need to be performed by the first UE in this embodiment of the application. The receiving unit 1003 is configured to support the first UE to perform S801 in FIG. 8 and/or other receiving operations that the first UE needs to perform in the embodiment of the present application.

Optionally, the communication device 1000 may further include a storage unit 1004 for storing program codes and data of the communication device, and the data may include but not limited to original data or intermediate data.

Wherein, the processing unit 1001 may be a processor or a controller, such as a CPU, a general-purpose processor, an application specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA) or other Programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor can also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and so on.

The sending unit 1002 may be a communication interface, a transmitter, or a sending circuit, etc., where the communication interface is collectively referred to, and in a specific implementation, the communication interface may include multiple interfaces.

The receiving unit 1003 may be a communication interface, a receiver, or a receiving circuit, etc., where the communication interface is collectively referred to, and in specific implementation, the communication interface may include multiple interfaces.

The sending unit 1002 and the receiving unit 1003 may be physically or logically implemented as the same unit.

The storage unit 1004 may be a memory.

When the processing unit 1001 is a processor, the sending unit 1002 and the receiving unit 1003 are communication interfaces, and the storage unit 1004 is a memory, the communication device involved in this embodiment of the present application may be as shown in FIG. 11 .

Referring to FIG. 11 , the communication device 1100 includes: a processor 1101 , a communication interface 1102 , and a memory 1103 . Optionally, the communication device may further include a bus 1104 . Wherein, the communication interface 1102, the processor 1101 and the memory 1103 can be connected to each other through the bus 1104; the bus 1104 can be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus etc. The bus 1104 can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 11 , but it does not mean that there is only one bus or one type of bus.

Optionally, the embodiments of the present application further provide a computer program product carrying computer instructions, and when the computer instructions are run on a computer, the computer is made to execute the method described in the foregoing embodiments.

Optionally, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the computer instructions are run on a computer, the computer executes the method described in the above-mentioned embodiments.

Optionally, an embodiment of the present application further provides a chip, including: a processing circuit and a transceiver circuit, and the processing circuit and the transceiver circuit are used to implement the methods described in the foregoing embodiments. Wherein, the processing circuit is used to execute the processing action in the corresponding method, and the transceiver circuit is used to execute the receiving/sending action in the corresponding method.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device including a server, a data center, and the like integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state drive (solid state drive, SSD)) wait.

In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical or other forms.

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

Through the above description of the implementation, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general-purpose hardware, of course, it can also be implemented by hardware, but in many cases the former is a better implementation . Based on this understanding, the essence of the technical solution of this application or the part that contributes can be embodied in the form of software products, and the computer software products are stored in readable storage media, such as computer floppy disks, hard disks or optical disks etc., including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.

The above is only a specific implementation of this application, but the protection scope of this application is not limited thereto, and changes or replacements within the technical scope disclosed in this application should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

An assisted positioning method, wherein the method is applied to a first network device, and the method includes:

sending first information to the monitoring device, where the first information includes a predicted location of the first user equipment;

receiving positioning integrity assistance information from the monitoring device, wherein the positioning integrity assistance information is determined based on the predicted location of the first user equipment;

Predict a location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information.
The method according to claim 1, further comprising:

receiving second information from the first user equipment, wherein the second information includes a positioning integrity performance indicator, a predicted position of the first user equipment, and error variance information of the first user equipment;

The predicting the location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information specifically includes:

Predict the location integrity protection level PL according to the second information and the location integrity auxiliary information.
The method according to claim 2, wherein the predicting the location integrity protection level PL according to the second information and the location integrity auxiliary information specifically includes:

predicting a first PL and a second PL based on the second information and the positioning integrity assistance information;

The method also includes:

Determine, according to the first PL and the second PL, a positioning manner and a reference device for locating the first user equipment.
The method according to claim 3, wherein the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device;

The predicting the first PL and the second PL according to the second information and the positioning integrity auxiliary information includes:

predicting the first PL based on the second information and error variance information of the first reference device;

predicting the second PL based on the second information and error variance information of the second reference device;

Wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device;

Alternatively, the first reference device is different from the second reference device.
The method of claim 4, wherein the monitoring device is the first reference device or the second reference device.
The method according to any one of claims 2 to 5, wherein before receiving the second information from the first user equipment, the method further comprises:

Sending a first request message to the first user equipment, where the first request message is used to request the first user equipment to send the second information.
The method according to any one of claims 1 to 6, characterized in that the monitoring device is a second network device.
The method according to claim 7, wherein the first information is a positioning information request message, Or send and receive node information request messages.
The method according to claim 8, wherein the first information is carried in an integrity information request information element.
The method according to any one of claims 1 to 6, wherein the monitoring device is a second user device, wherein the second user device is different from the first user device.
The method of claim 10, wherein the first information is a location request message.
The method according to claim 11, wherein the first information is carried in an integrity information auxiliary data cell.
An auxiliary positioning method, characterized in that the method is applied to monitoring equipment, and the method includes:

receiving first information from a first network device, wherein the first information includes a predicted location of a first user equipment;

sending positioning integrity assistance information to the first network device, wherein the positioning integrity assistance information is determined based on the predicted location of the first user equipment, and the positioning integrity assistance information is used for predictive positioning Integrity protection level PL.
The method according to claim 13, wherein the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device.
The method of claim 14, wherein the monitoring device is the first reference device or the second reference device.
The method according to any one of claims 13 to 15, wherein the monitoring device is a second network device.
The method according to claim 16, wherein the first information is a positioning information request message, or a sending and receiving node information request message.
The method according to claim 17, wherein the first information is carried in an integrity information request information element.
The method according to any one of claims 13 to 15, wherein the monitoring device is a second user device, wherein the second user device is different from the first user device.
The method of claim 19, wherein the first information is a location request message.
The method according to claim 20, wherein the first information is carried in an integrity information auxiliary data cell.
An assisted positioning method, wherein the method is applied to a first network device, and the method includes:

sending first information to the monitoring device, where the first information includes a predicted location of the first user equipment;

Positioning integrity assistance information is received from the monitoring device, wherein the positioning integrity assistance information is determined based on a predicted location of the first user equipment.
The method according to claim 22, further comprising:

Predict a location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information.
An assisted positioning method, characterized in that the method is applied to a first user equipment, and the method includes:

receiving positioning integrity assistance information from a monitoring device;

Predicting a location integrity protection level PL according to the predicted location of the first user equipment and the location integrity assistance information.
The method according to claim 24, wherein the predicting the protection level PL according to the predicted position of the first user equipment and the positioning integrity assistance information comprises:

predicting a first PL and a second PL according to a positioning integrity performance index, error variance information of the first user equipment, a predicted location of the first user equipment, and the positioning integrity assistance information;

The method also includes:

Determine, according to the first PL and the second PL, a positioning manner and a reference device for locating the first user equipment.
The method according to claim 25, wherein the positioning integrity auxiliary information includes error variance information of the first reference device and error variance information of the second reference device;

The predicting the first PL and the second PL according to the second information and the positioning integrity auxiliary information includes:

predicting the first PL based on the second information and error variance information of the first reference device;

predicting the second PL based on the second information and error variance information of the second reference device;

Wherein, the first reference device is the same as the second reference device, and the error variance information of the first reference device is different from the error variance information of the second reference device;

Alternatively, the first reference device is different from the second reference device.
The method according to claim 25 or 26, further comprising:

Sending first information to the first network device, where the first information includes a positioning manner for locating the first user equipment and information of a reference device.
A network device, characterized by comprising: a processor and a memory, the processor is coupled to the memory, the memory stores program instructions, and when the program instructions stored in the memory are executed by the processor, A method as claimed in any one of claims 1 to 12 is carried out, or a method as claimed in claim 22 or 23 is carried out.
A monitoring device, characterized in that it includes: a processor and a memory, the processor is coupled to the memory, the memory stores program instructions, and when the program instructions stored in the memory are executed by the processor, A method as claimed in any one of claims 13 to 21 is carried out.
A user equipment, characterized by comprising: a processor and a memory, the processor is coupled to the memory, the memory stores program instructions, and when the program instructions stored in the memory are executed by the processor, A method as claimed in any one of claims 24 to 27 is carried out.
A chip, characterized in that it includes a processor and an input-output interface, the input-output interface is used to receive signals from other devices other than the chip and transmit them to the processor or transfer signals from the processor The signal is sent to other devices other than the chip, and the processor is used to implement the method according to any one of claims 1 to 12 through a logic circuit or execute code instructions, or to implement the method described in any one of claims 13 to 12. The method according to any one of claims 21, or used to realize the method according to any one of claims 22 to 23, or used to realize the method according to any one of claims 24 to 27.
A computer-readable storage medium, wherein a computer program is stored in the storage medium or instructions, when the computer program or instructions are executed, implement the method as described in any one of claims 1 to 12, or implement the method as described in any one of claims 13 to 21, or implement the method as described in any one of claims 13 to 21 A method according to any one of claims 22 to 23, or implementing a method according to any one of claims 24 to 27.