CN113543304B

CN113543304B - Auxiliary positioning method and device and communication equipment

Info

Publication number: CN113543304B
Application number: CN202010303649.6A
Authority: CN
Inventors: 张大钧; 李健翔
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2023-01-31
Anticipated expiration: 2040-04-17
Also published as: WO2021208887A1; CN113543304A

Abstract

The application discloses an auxiliary positioning method, an auxiliary positioning device and communication equipment, and belongs to the technical field of communication. In the application, a first network device receives positioning integrity requirement information from a second network device; the first network equipment carries out integrity detection on the obtained positioning auxiliary information according to the positioning integrity requirement information so as to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information; the first network device sends the positioning assistance information and the positioning integrity warning indication to the second network device. Therefore, in the positioning process, the integrity index is introduced to require the perfection of the positioning mechanism, the extreme difference point of the position estimation obtained by the positioning measurement network entity can be screened and limited through integrity detection, and the positioning accuracy and reliability are improved.

Description

Auxiliary positioning method and device and communication equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an auxiliary positioning method, an auxiliary positioning device, and a communications device.

Background

The 5G NR (New Radio) system is a global 5G standard designed based on a New air interface of OFDM (Orthogonal Frequency Division Multiplexing ), and is also a very important cellular mobile technology base for the next generation, and the 5G technology will realize ultra-low delay and high reliability.

Under the existing mechanism, the R16 version only meets the requirement of positioning accuracy, namely the positioning service only supports the requirement of meeting the required positioning accuracy under a certain confidence interval. Under the current technology, the accuracy of the positioning Service meets the requirement of the QoS (Quality of Service) index, but the position estimation generates very large error at some time, and the prior art can not solve the situation of the large error. Under the special positioning application scene that the safety of lives and properties is influenced or legal responsibility is brought, if the once positioning error is overlarge, serious influence and bad results can be brought. Therefore, there is a need to improve the positioning mechanism of the prior art to limit the generation of the worst case point and avoid such an occurrence.

Since the 5G system is oriented to the vertical industry, the location service based on the mobile communication network will be used in the scenes such as automatic driving, industrial internet of things, remote medical treatment, and the like. Under these circumstances, there is a demand not only for the positioning accuracy but also for the range of the positioning error.

The current positioning mechanism cannot avoid the problem of large error and cannot meet the positioning requirement of a 5G system.

Disclosure of Invention

The invention provides an auxiliary positioning method, an auxiliary positioning device and communication equipment, which are used for solving the problem that the existing positioning technology cannot avoid large errors so as to improve the accuracy and reliability of positioning.

In a first aspect, an assisted positioning method is provided, the method comprising:

the first network device receiving location integrity requirement information from the second network device;

the first network equipment carries out integrity detection on the obtained positioning auxiliary information according to the positioning integrity requirement information so as to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information;

the first network device sends the positioning assistance information and the positioning integrity warning indication to the second network device.

In one possible implementation, the positioning integrity requirement information includes at least one of:

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

In a possible implementation manner, the positioning integrity requirement information is carried in QoS indicator requirement information, and the QoS indicator requirement information further includes positioning accuracy requirement information.

In one possible implementation, the method further includes:

and the first network equipment carries out auxiliary positioning processing according to the positioning precision requirement information so as to obtain the positioning auxiliary information.

In one possible implementation, the positioning assistance information is an assistance measurement or a position estimation.

In a possible implementation manner, when the positioning assistance information is an assistance measurement value, the positioning integrity alarm indication is used to indicate any one of the following: the auxiliary measurement value is reliable and unreliable, and is at the critical point of the positioning integrity requirement;

when the positioning assistance information is a position estimation value, the positioning integrity alarm indication is used for indicating any one of the following: the position estimate is valid, the position estimate is invalid, and the position estimate is about to fail.

In a second aspect, an assisted positioning method is provided, the method comprising:

the second network equipment sends positioning integrity requirement information to the first network equipment;

the second network device receives positioning assistance information and a positioning integrity alarm indication from the first network device, wherein the positioning integrity alarm indication is obtained by integrity detection of the positioning assistance information according to the positioning integrity requirement information;

and the second network equipment processes the positioning auxiliary information according to the positioning integrity alarm indication.

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

In one possible implementation, the sending, by the second network device, the location integrity requirement information to the first network device includes:

the second network device sends QoS index requirement information to the first network device, the positioning integrity requirement information is carried in the QoS index requirement information, and the QoS index requirement information further comprises positioning precision requirement information.

In one possible implementation, the method further includes:

the second network equipment receives a positioning request from a positioning client;

and the second network equipment determines the QoS index requirement information according to the service type of the positioning service indicated by the positioning request.

In a third aspect, a communication device is provided, the communication device comprising:

a memory for storing program instructions;

a transceiver for receiving positioning integrity requirement information from a second network device;

a processor for calling the program instructions stored in the memory and executing according to the obtained program: according to the positioning integrity requirement information, integrity detection is carried out on the obtained positioning auxiliary information so as to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information;

the transceiver is further configured to send the positioning assistance information and the positioning integrity alert indication to the second network device.

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

In a possible implementation manner, the positioning integrity requirement information is carried in QoS index requirement information, and the QoS index requirement information further includes positioning accuracy requirement information.

In one possible implementation, the processor is further configured to call the program instructions stored in the memory, and execute, according to the obtained program:

and performing auxiliary positioning processing according to the positioning precision requirement information to obtain the positioning auxiliary information.

In a fourth aspect, a communication device is provided, the communication device comprising:

a memory for storing program instructions;

a transceiver, configured to send positioning integrity requirement information to a first network device, and receive positioning assistance information and a positioning integrity alarm indication from the first network device, where the positioning integrity alarm indication is obtained by performing integrity detection on the positioning assistance information according to the positioning integrity requirement information;

a processor for calling the program instructions stored in the memory and executing according to the obtained program: and processing the positioning auxiliary information according to the positioning integrity alarm indication.

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

In one possible implementation, the transceiver is further configured to:

and sending QoS (quality of service) index requirement information to the first network equipment, wherein the positioning integrity requirement information is carried in the QoS index requirement information, and the QoS index requirement information also comprises positioning precision requirement information.

In one possible implementation, the transceiver is further configured to:

receiving a positioning request from a positioning client;

the processor is further configured to call the program instructions stored in the memory, and execute, according to the obtained program: and determining the QoS index requirement information according to the service type of the positioning service indicated by the positioning request.

In a fifth aspect, there is provided an auxiliary positioning device, the device comprising:

a receiving unit, configured to receive location integrity requirement information from a second network device;

the processing unit is used for carrying out integrity detection on the obtained positioning auxiliary information according to the positioning integrity requirement information so as to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information;

a sending unit, configured to send the positioning assistance information and the positioning integrity warning indication to the second network device.

In a possible implementation manner, the processing unit is further configured to perform auxiliary positioning processing according to the positioning accuracy requirement information to obtain the positioning auxiliary information.

In a sixth aspect, there is provided an auxiliary positioning device, the device comprising:

a sending unit, configured to send location integrity requirement information to a first network device;

a receiving unit, configured to receive positioning assistance information and a positioning integrity alarm indication from the first network device, where the positioning integrity alarm indication is obtained by performing integrity detection on the positioning assistance information according to the positioning integrity requirement information;

and the processing unit is used for processing the positioning auxiliary information according to the positioning integrity alarm indication.

In a possible implementation manner, the sending unit is configured to send, to the first network device, qoS indicator requirement information, where the positioning integrity requirement information is carried in the QoS indicator requirement information, and the QoS indicator requirement information further includes positioning accuracy requirement information.

In a possible implementation manner, the receiving unit is further configured to receive a positioning request from a positioning client;

the processing unit is further configured to determine the QoS indicator requirement information according to the service type of the positioning service indicated by the positioning request.

In a seventh aspect, a positioning system is provided, comprising the communication device of the third aspect and the communication device of the fourth aspect, wherein the communication device of the third aspect is capable of performing the steps of the positioning assistance method as performed by the first network device of the first aspect, and the communication device of the fourth aspect is capable of performing the steps of the positioning assistance method as performed by the second network device of the second aspect.

In an eighth aspect, a positioning system is provided, which includes the auxiliary positioning device in the fifth aspect and the auxiliary positioning device in the sixth aspect, the auxiliary positioning device in the fifth aspect is capable of performing the steps of the auxiliary positioning method performed by the first network equipment in the first aspect, and the auxiliary positioning device in the sixth aspect is capable of performing the steps of the auxiliary positioning method performed by the second network equipment in the second aspect.

In a ninth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer-executable instructions for causing a computer to perform the steps included in any one of the above-mentioned assisted positioning methods in the first aspect.

In a tenth aspect, a computer-readable storage medium is provided, where the computer-readable storage medium stores computer-executable instructions for causing a computer to perform the steps included in any one of the assisted positioning methods in the second aspect.

In an eleventh aspect, there is provided a computer program product containing instructions which, when run on a computer, cause the computer to perform any of the above-mentioned auxiliary positioning methods of the first aspect.

In a twelfth aspect, a computer program product is provided comprising instructions which, when run on a computer, cause the computer to perform any of the above-mentioned secondary positioning methods of the second aspect.

In the embodiment of the application, in the positioning process, the index of integrity is introduced to require the positioning mechanism to be perfected, the extreme difference points of positioning auxiliary information (such as position estimation) obtained by a network entity executing positioning measurement can be screened and limited through integrity detection, the positioning accuracy and reliability are improved, and thus the life and property loss and legal liability caused by positioning system errors can be avoided as much as possible.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application;

fig. 2 is a flowchart of an assisted positioning method in an embodiment of the present application;

FIG. 3 is another flowchart of an assisted positioning method in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a communication device in an embodiment of the present application;

fig. 5 is another schematic structural diagram of a communication device in the embodiment of the present application;

FIG. 6 is a block diagram of an auxiliary positioning device in an embodiment of the present application;

fig. 7 is another structural block diagram of the auxiliary positioning device in the embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the claimed protection. In the present application, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

The terms "first" and "second" in the description and claims of the present application and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the term "comprises" and any variations thereof, which are intended to cover non-exclusive protection. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The "plurality" in the present application may mean at least two, for example, two, three or more, and the embodiments of the present application are not limited.

In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the preceding and following related objects are in a "and/or" relationship, unless otherwise specified.

The technical scheme provided by the embodiment of the application is described below with reference to the accompanying drawings.

Referring to fig. 1, an assisted positioning method provided in an embodiment of the present application may be applied to the application scenario shown in fig. 1, where the application scenario shown in fig. 1 includes a positioning terminal, a positioning server, and a positioning measurement network entity. The positioning terminal is a positioning client capable of initiating a positioning request, and the positioning terminal can send a positioning service request to the positioning server; the positioning server and the positioning measurement network entity are network side devices for performing positioning on a network side, the positioning server may be, for example, an LMF (Location Management Function) position server, the positioning measurement network entity refers to a network entity capable of performing positioning measurement, and the positioning measurement network entity is, for example, a gNB (next generation NodeB,5G base station) or an en-gNB (5G base station interfacing with a 4G core network).

In fig. 1, the positioning server and the positioning measurement network entity are represented by two independent network entities, i.e. the positioning server and the positioning measurement network entity are two mutually independent network side devices. In another possible scenario, the LMF functionality may be integrated in a positioning measurement network entity (e.g., a gNB or an en-gNB), and then the positioning server and the positioning measurement network device may be the same device.

In fig. 1, a positioning terminal may send a positioning request to a positioning server, the positioning server may send positioning integrity requirement information (and may send positioning accuracy requirement information) to a positioning measurement network entity according to the received positioning request, the positioning measurement network entity may perform integrity detection on the obtained positioning assistance information according to the positioning integrity requirement information after receiving the positioning integrity requirement information sent by the positioning server, so as to obtain a positioning integrity alarm indication corresponding to the positioning assistance information, and then send the positioning assistance information and the positioning integrity alarm indication to the positioning server, the positioning server may determine an integrity detection result of the positioning assistance information sent by the positioning measurement network entity according to the received positioning integrity alarm indication, and then perform corresponding processing on the received positioning assistance information according to the integrity detection result. Therefore, in the positioning process, the integrity index is introduced to require the positioning mechanism to be perfected, and the integrity detection can be used for screening and limiting the extreme bad points (namely extreme difference points) of positioning auxiliary information (such as position estimation) obtained by a network entity performing positioning measurement, so that the positioning accuracy and effectiveness are improved, the reliability of the positioning system is improved, and the life and property loss and legal liability caused by the positioning system error can be avoided as much as possible.

The following describes the auxiliary positioning method in the embodiment of the present application in detail by standing at the first network device side and the second network device side, respectively, with reference to the accompanying drawings. Wherein, the first network device is, for example, a positioning measurement network entity in fig. 1, and the first network device is, for example, a gNB or an en-gNB or a gNB with an LMF function or an en-gNB with an LMF function; the second network device is, for example, the location server of fig. 1, and the second network device is, for example, an LMF location server.

Please refer to fig. 2, which is a schematic flowchart corresponding to an auxiliary positioning method provided in an embodiment of the present application, where the method may be executed by the first network device, and the flowchart shown in fig. 2 is described as follows.

Step 201: the first network device receives location integrity requirement information from the second network device.

The positioning client may send a positioning request to the second network device, and the second network device may select whether integrity detection needs to be performed on the positioning assistance information according to a service type of a positioning service corresponding to the positioning request, and when it is determined that integrity detection needs to be performed on the positioning assistance information, the second network device may send positioning integrity requirement information to the first network device, so as to inform the first network device that integrity detection needs to be performed on the obtained positioning assistance information through the positioning integrity requirement information. That is to say, whether integrity detection is required or not can be determined according to the service type of the positioning service, for example, integrity can be considered for services with higher positioning requirements such as medical treatment and flight, so that the positioning requirements of various positioning scenes can be met.

In the implementation process of positioning, the second network device may further send positioning accuracy requirement information to the first network device, where the positioning accuracy requirement information is used to indicate an accuracy requirement in positioning measurement, so that the first network device can perform accurate measurement according to the positioning accuracy requirement information when performing positioning measurement. Specifically, the positioning accuracy requirement information may indicate an accuracy requirement of the horizontal position under a certain confidence interval; alternatively, the positioning accuracy requirement information may indicate an accuracy requirement of the vertical position under a certain confidence interval; alternatively, the positioning accuracy requirement information may indicate the accuracy requirement of the horizontal position under a certain confidence interval and the accuracy requirement of the vertical position under a certain confidence interval, and the confidence interval in the horizontal position and the confidence interval in the vertical position may be the same or may be different.

In one possible implementation, the second network device may send the positioning accuracy requirement information and the positioning integrity requirement information to the first network device separately, that is, the positioning accuracy requirement information and the positioning integrity requirement information may be two independent pieces of information.

In another possible implementation, the second network device may combine the positioning accuracy requirement information and the positioning integrity requirement information into one piece of information to send to the first network device, for example, the positioning accuracy requirement information and the positioning integrity requirement information may both be carried in the QoS indicator requirement information, and then the QoS indicator requirement information including both the positioning accuracy requirement information and the positioning integrity requirement information is sent to the first network device.

The positioning integrity requirement information in the embodiment of the present application may include one or more of the following information:

1) The integrity Horizontal position Protection threshold, which may be expressed in terms of Horizontal Protection Level or HPL, indicates an upper Level of Horizontal position error, and requires that the probability that the Horizontal position estimation error is greater than HPL should be lower than the integrity risk requirement Irisk value, which may be expressed, for example, as P (epsilon > HPL) < Irisk, where epsilon is the actual position estimation error.

2) The integrity Vertical position Protection threshold, which may be represented by a Vertical Protection Level or VPL, indicates an upper limit of Vertical position error, and requires that the probability that the Vertical position estimation error is greater than VPL should be lower than the integrity risk requirement Irisk value, which may be represented by P (epsilon > VPL) < Irisk, for example, where epsilon is the actual position estimation error.

3) The Integrity risk requirement may be expressed in Integrity risk or Irisk, which refers to the probability that a positioning error exceeds a tolerance limit.

4) The Horizontal position alarm threshold, which may be represented by Horizontal Alert Limit or HAL, indicates the maximum Horizontal position estimation error value allowed for the system to operate properly.

5) The Vertical position warning threshold, which may be expressed in Vertical Alert Limit or VAL, indicates the maximum Vertical position estimation error value allowed when the system is able to operate normally.

6) The reliability requirement indication may be represented by an Authentication Flag indicating an indication that the service is required to support integrity functions.

Step 202: and the first network equipment carries out integrity detection on the obtained positioning auxiliary information according to the positioning integrity requirement information so as to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information.

The first network device may perform an auxiliary positioning process, specifically, perform an auxiliary positioning process according to the positioning accuracy requirement information, and further obtain positioning assistance information, where the positioning assistance information may assist a measurement value or a position estimation value, and when the first network device performs a positioning assistance measurement, the obtained positioning assistance information is an auxiliary measurement value, and when the first network device assists in performing a position estimation, the obtained positioning assistance information is a position estimation value.

Further, after the positioning assistance information is obtained, the first network device may perform integrity detection on the obtained positioning assistance information according to the received positioning integrity requirement information, that is, perform an integrity function to determine how the integrity index of the positioning assistance information is, in the embodiment of the present application, a result obtained by performing integrity detection on the positioning assistance information is represented by a positioning integrity alarm indication.

When the positioning assistance information is an assistance measurement value, the corresponding positioning integrity alarm indication is used for indicating any one of the following: the auxiliary measurement value is reliable, the auxiliary measurement value is unreliable, and the auxiliary measurement value is at a critical point of positioning integrity requirement. That is, when the first network device is performing a positioning assistance measurement, the corresponding positioning integrity alert indication may be that the assistance measurement is reliable, or that the assistance measurement is unreliable, or that the assistance measurement is at a critical point of the positioning integrity requirement.

When the positioning assistance information is a position estimation value, the corresponding positioning integrity alarm indication is used for indicating any one of the following: the position estimate is valid, the position estimate is invalid, and the position estimate is about to fail. That is, when the first network device is performing a location estimate, the corresponding location integrity alert may indicate that the location estimate is valid, that the location estimate is invalid, or that the location estimate is about to fail.

Step 203: the first network device sends the positioning assistance information and the positioning integrity alarm indication to the second network device.

After obtaining the positioning assistance information and the positioning integrity warning indication corresponding to the positioning assistance information, the first network device may associate the two pieces of information and send the two pieces of information to the second network device, specifically, for example, the positioning assistance information and the corresponding positioning integrity warning indication may be combined into one piece of information and sent to the second network device, or may also be sent to the second network device as two pieces of independent information, and when the two pieces of independent information are sent to the second network device, an association identifier may be set for the two pieces of information, so that the second network device can know an association relationship between the two pieces of information according to the association identifier, and further accurately obtain the positioning integrity warning indication corresponding to each piece of positioning assistance information.

After receiving the positioning assistance information and the corresponding positioning integrity warning indication, the first network device performs matching processing on the corresponding positioning assistance information according to the positioning integrity warning indication, so as to implement an integrity function in the positioning process. For example, when the positioning integrity alarm indication indicates that the positioning auxiliary information is unreliable, the positioning auxiliary information can be discarded without being adopted, so that the positioning extreme difference point can be limited, the positioning integrity requirement is met, the positioning error is effectively prevented from being overlarge, the positioning accuracy of the system is improved, the extremely severe point is limited, the dangerous event is avoided, and the property loss and the legal liability are avoided.

Please refer to fig. 3, which is a flowchart illustrating a method for assisting positioning according to an embodiment of the present invention, where the method may be executed by the second network device, and the flowchart illustrated in fig. 3 is described as follows.

Step 301: the second network device sends the location integrity requirement information to the first network device.

As described above, the second network device may send the positioning accuracy requirement information to the first network device, and may also send the positioning accuracy requirement information to the first network device, where as described above, the positioning accuracy requirement information and the positioning integrity requirement information may be simultaneously carried in the QoS indicator requirement information and sent to the first network device, or the positioning accuracy requirement information and the positioning integrity requirement information may also be sent to the first network device respectively.

Step 302: the second network device receives the positioning assistance information and a positioning integrity alarm indication from the first network device, wherein the positioning integrity alarm indication is obtained by integrity detection of the positioning assistance information according to the positioning integrity requirement information.

Step 303: and the second network equipment processes the positioning auxiliary information according to the positioning integrity alarm indication.

The flow shown in fig. 3 corresponds to the flow shown in fig. 2, so that the description of the embodiment of steps 301 to 303 can be referred to the description of the embodiment of fig. 2, and will not be repeated here.

In the embodiment of the application, in the positioning process, the index requirement of integrity is introduced to perfect a positioning mechanism, and the integrity of the positioning service refers to the measurement of the trust level of the positioning service, so that the extreme badness point (namely extreme difference point) of positioning auxiliary information (such as position estimation) obtained by a network entity performing positioning measurement can be screened and limited through integrity detection.

Specific examples of several scenarios are given below, and are described below, according to one or a combination of the above embodiments of the present application.

Example one

Step 1, a location server LMF receives a location service request from a location client.

Step 2, when receiving the positioning service request from the positioning client, the positioning server LMF selects and sets a corresponding QoS index requirement according to the service type of the positioning service requested by the positioning service request, for example, the set QoS index requirement includes a positioning accuracy requirement and a positioning integrity requirement, where the positioning integrity requirement may be indicated by integrity indication information.

Step 3, the location server LMF sends the QoS indicator requirement carrying the requirement on the integrity through a location MEASUREMENT INITIATION message such as NRPPa (NR Positioning Protocol Annex)/LPPa (LTE Positioning Protocol Annex) signaling E-CID MEASUREMENT INFORMATION REQUEST or OTDOA INFORMATION REQUEST, specifically, for example, sends the QoS indicator requirement to a corresponding network entity (e.g., gbb/en-gbb) performing location MEASUREMENT.

The integrity indication information carried in the QoS indicator requirement may be one or more of an integrity horizontal position protection threshold, an integrity vertical position protection threshold, an integrity risk requirement, a horizontal position alarm threshold, a vertical position alarm threshold, and a reliability requirement indication. For example, the integrity horizontal position protection threshold value is required to be not more than 1 meter, the positioning risk is required to be controlled within 90%, which means that the positioning level error cannot exceed 1 meter within 90% probability, and if the positioning is deemed to be unreliable once exceeding 1 meter, the calculated position is no longer used for auxiliary positioning.

Step 4, when the corresponding network entity (such as gNB/en-gNB) executing positioning MEASUREMENT receives the positioning MEASUREMENT INITIATION message such as NRPPa/LPPa signaling E-CID MEASUREMENT establishment REQUEST or OTDOA INFORMATION REQUEST from the positioning server LMF, the requirement of the QoS index on the integrity is read, and according to the positioning integrity parameter (such as integrity horizontal position protection threshold, integrity vertical position protection threshold, integrity risk requirement, horizontal position alarm threshold, vertical position alarm threshold, reliability requirement indication) in the QoS index requirement, some auxiliary data and positioning integrity indication thereof are combined, the positioning MEASUREMENT function is executed on the network side and the integrity auxiliary monitoring is supported.

And step 5, when the corresponding network entity (such as gNB/en-gNB) executing the positioning MEASUREMENT completes the integrity function monitoring and the auxiliary MEASUREMENT, and provides the auxiliary MEASUREMENT value to the network through the NRPPa/LPPa signaling E-CID MEASUREMENT INITIATION RESPONSE or E-CID MEASUREMENT REPORT or OTDOA INFORMATION RESPONSE and other positioning MEASUREMENT RESPONSE messages, the integrity alarm indication is carried at the same time. When certain signals or systems that assist in the measurement are unreliable, the measured values are unreliable. Therefore, the integrity alarm indication component is carried while the measured value is reported, and the system is prompted which test components enter an unreliable state to assist the location server LMF to carry out position calculation.

Example two

Step 1, when a core network related entity receives a positioning service request from a positioning client, a suitable LMF, such as a local LMF, is selected according to a service type, and corresponding QoS index requirements are set, such as a positioning precision requirement and a positioning integrity requirement.

And 2, the core network related entity carries a corresponding position request message through NG signaling Reporting Control or a similar process, and sends a QoS index requirement, wherein the QoS index requirement carries a positioning integrity requirement and can also carry a positioning precision requirement.

The integrity indication information carried in the QoS indicator requirement may be one or more of an integrity horizontal position protection threshold, an integrity vertical position protection threshold, an integrity risk requirement, a horizontal position alarm threshold, a vertical position alarm threshold, and a reliability requirement indication. For example: the integrity horizontal protection value can not exceed 0.2 m, the vertical protection value can not exceed 0.1 m, and the risk requirement is controlled within 99.9%. If the horizontal alarm threshold is 0.16 m and the vertical alarm threshold is 0.08 m, the positioning error of the horizontal position cannot exceed 0.2 m and the vertical error cannot exceed 0.1 m in 99.9% of the measurement points, and once the positioning error exceeds 0.2 m, the system is unreliable, and the calculated position cannot be used; if the calculated horizontal position error is 0.16 m of the horizontal early warning threshold and the calculated vertical position error is 0.08 m of the early warning threshold, the system is about to reach a critical point, and critical early warning can be performed.

And 3, when a corresponding network entity (such as gNB/en-gNB) with local LMF receives NG signaling Location Reporting Control from a core network related entity or a similar process carries a corresponding position request message, reading the requirement on integrity in the QoS index requirement, including the positioning integrity parameter in the QoS index requirement, further acquiring other related auxiliary data, executing a position calculation function on a network side and supporting integrity auxiliary monitoring.

And 4, after the corresponding network entity with the local LMF (such as gNB/en-gNB with the LMF function) completes position calculation, the network entity carries a position response message through NG signaling Location Report or a similar process, sends the calculated position information to the related entity of the core network, simultaneously carries integrity satisfaction feedback, and indicates whether the calculated position meets the integrity index requirement under the integrity QoS index requirement. For example, if the QoS indicator requirement is exceeded, the server will be notified that the computed position estimate is not reliable; if the protection threshold is not exceeded, but the pre-warning threshold has been exceeded, it is an indication that the position calculation is about to fail and the system has entered a critical state.

In the first and second examples, the integrity parameter requirement is carried in the positioning request message sent to the network entity in the NRPPa or LPPa signaling, the auxiliary measurement value and the alarm indication carried by the network entity (e.g., gNB/en-gNB) performing the positioning measurement are fed back to the network through the NRPPa or LPPa signaling, and the Location estimate integrity indicator satisfaction indication, including indicating that the calculated Location is failed or is about to fail or reliable, is carried in the Location response message carried by the corresponding network entity with local LMF (e.g., gNB/en-gNB) through NG signaling Location Report or similar process, so as to perform the integrity requirement.

In the embodiment of the application, a method for notifying a network entity of the requirement for completeness satisfaction under the condition that existing means cannot be used is provided, so that a corresponding network entity performing positioning measurement or a corresponding network entity with local LMF can timely acquire the completeness requirement of a positioning service, and related network entities can also feed back whether the completeness requirement is met to a server or a core network related entity, thereby realizing the function of completeness positioning, limiting extreme points in the positioning process, and improving the reliability and effectiveness of positioning.

Based on the same inventive concept, an embodiment of the present application provides a communication device, which may be, for example, the first network device described in the foregoing embodiment, please refer to fig. 4, and the communication device in the embodiment of the present application includes a memory 401, a processor 402, and a transceiver 403. Wherein:

a memory 401 for storing program instructions;

a transceiver 403 for receiving positioning integrity requirement information from the second network device;

a processor 402, configured to call the program instructions stored in the memory 401, and execute, according to the obtained program: according to the positioning integrity requirement information, integrity detection is carried out on the obtained positioning auxiliary information so as to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information;

the transceiver 403 is further configured to send the positioning assistance information and the positioning integrity alert indication to the second network device.

In one possible embodiment, the location integrity requirement information comprises at least one of:

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

a health risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

In a possible implementation, the positioning integrity requirement information is carried in the QoS indicator requirement information, and the QoS indicator requirement information further includes positioning accuracy requirement information.

In a possible embodiment, the processor is further configured to call program instructions stored in the memory, and to execute, according to the obtained program:

and performing auxiliary positioning processing according to the positioning accuracy requirement information to obtain positioning auxiliary information.

In one possible embodiment, the positioning assistance information is an assistance measurement or a position estimate.

In a possible implementation, when the positioning assistance information is an assistance measurement, the positioning integrity warning indicator is used to indicate any one of the following: the auxiliary measurement value is reliable and unreliable, and is at the critical point of the positioning integrity requirement;

Where in fig. 4 the bus interface may comprise any number of interconnected buses and bridges, in particular one or more processors represented by processor 402 and various circuits of memory represented by memory 401, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 403 may be a number of elements including a transmitter and a receiver providing a means for communicating with various other apparatus over a transmission medium.

The processor 402 is responsible for managing the bus architecture and general processing, and the memory 401 may store data used by the processor 402 in performing operations.

Alternatively, the processor 402 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

Based on the same inventive concept, an embodiment of the present application provides a communication device, which may be, for example, the second network device described in the foregoing embodiment, please refer to fig. 5, and the communication device in the embodiment of the present application includes a memory 501, a processor 502, and a transceiver 503, where:

a memory 501 for storing program instructions;

a transceiver 503, configured to send positioning integrity requirement information to the first network device, and receive positioning assistance information and a positioning integrity alarm indication from the first network device, where the positioning integrity alarm indication is obtained by performing integrity detection on the positioning assistance information according to the positioning integrity requirement information;

a processor 502 for calling the program instructions stored in the memory and executing, according to the obtained program: and processing the positioning auxiliary information according to the positioning integrity alarm indication.

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

In one possible implementation, the transceiver 503 is further configured to:

and sending QoS index requirement information to the first network equipment, wherein the positioning integrity requirement information is carried in the QoS index requirement information, and the QoS index requirement information also comprises positioning precision requirement information.

In one possible implementation, the transceiver 503 is further configured to:

receiving a positioning request from a positioning client;

the processor is also used for calling the program instructions stored in the memory and executing the following steps according to the obtained program: and determining the QoS index requirement information according to the service type of the positioning service indicated by the positioning request.

Where in fig. 5 the bus interface may comprise any number of interconnected buses and bridges, in particular one or more processors represented by processor 502 and various circuits of memory represented by memory 501 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 503 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.

The processor 502 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 502 in performing operations.

Alternatively, the processor 502 may be a CPU, ASIC, FPGA or CPLD, among others.

Based on the same inventive concept, embodiments of the present application provide an auxiliary positioning device, where the auxiliary positioning device may be, for example, the first network device described in the foregoing embodiments, and the auxiliary positioning device may be implemented by a chip system, and the chip system may be formed by a chip, and may also include a chip and other discrete devices. Referring to fig. 6, an auxiliary positioning apparatus in the embodiment of the present application includes a receiving unit 601, a processing unit 602, and a sending unit 603, where:

a receiving unit 601, configured to receive location integrity requirement information from a second network device;

the processing unit 602 is configured to perform integrity detection on the obtained positioning assistance information according to the positioning integrity requirement information, so as to obtain a positioning integrity alarm indication corresponding to the positioning assistance information;

a sending unit 603, configured to send the positioning assistance information and the positioning integrity warning indication to the second network device.

In a possible implementation manner, the processing unit 602 is further configured to perform an auxiliary positioning process according to the positioning accuracy requirement information to obtain positioning auxiliary information.

All relevant contents of each step executed by the first network device related to the embodiment of the auxiliary positioning method may be referred to the functional description of the functional module corresponding to the auxiliary positioning apparatus in fig. 6, and are not described herein again.

Based on the same inventive concept, embodiments of the present application provide an information transmission apparatus, where the auxiliary positioning apparatus may be, for example, the second network device described in the foregoing embodiments, and the auxiliary positioning apparatus may be implemented by a chip system, and the chip system may be formed by a chip, and may also include a chip and other discrete devices. Referring to fig. 7, an information transmission apparatus in the embodiment of the present application includes a sending unit 701, a receiving unit 702, and a processing unit 703, where:

a sending unit 701, configured to send location integrity requirement information to a first network device;

a receiving unit 702, configured to receive positioning assistance information and a positioning integrity warning indication from a first network device, where the positioning integrity warning indication is obtained by performing integrity detection on the positioning assistance information according to positioning integrity requirement information;

the processing unit 703 is configured to process the positioning assistance information according to the positioning integrity alarm indication.

In a possible implementation manner, the sending unit 701 is configured to send quality of service QoS indicator requirement information to the first network device, where the positioning integrity requirement information is carried in the QoS indicator requirement information, and the QoS indicator requirement information further includes positioning accuracy requirement information.

In a possible implementation manner, the receiving unit 702 is further configured to receive a positioning request from a positioning client; the processing unit 703 is further configured to determine QoS indicator requirement information according to the service type of the positioning service indicated by the positioning request.

All relevant contents of each step executed by the second network device related to the embodiment of the auxiliary positioning method may be referred to the functional description of the functional module corresponding to the auxiliary positioning apparatus in fig. 7, and are not described herein again.

The division of the units in the embodiments of the present application is schematic, and is only a logic function division, and in actual implementation, there may be another division manner, and in addition, each functional unit in each embodiment of the present application may be integrated in one processor, may also exist alone physically, and may also be integrated in one module by two or more units. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a ROM (Read-Only Memory), a RAM (Random Access Memory), a magnetic disk, or an optical disk.

Based on the same inventive concept, the embodiment of the present application further provides a positioning system, which may include a communication device as shown in fig. 4 and a communication device as shown in fig. 5, or alternatively, may include an auxiliary positioning apparatus as shown in fig. 6 and an auxiliary positioning apparatus as shown in fig. 7.

Based on the same inventive concept, embodiments of the present application further provide a computer-readable storage medium, which stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to perform the steps of the assisted positioning method as described above.

Based on the same inventive concept, the embodiment of the present application further provides a chip system, where the chip system includes a processor and may further include a memory, and is used to implement the steps of the foregoing auxiliary positioning method. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In some possible embodiments, the aspects of the assisted positioning method provided in the embodiments of the present application may also be implemented in the form of a program product, which includes program code for causing a computer to perform the steps of the assisted positioning method according to various exemplary embodiments of the present application described above when the program product runs on the computer.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all changes and modifications that fall within the scope of the present application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. An assisted positioning method, comprising:

the first network device receiving location integrity requirement information from the second network device; the first network equipment is a positioning network entity, and the second network equipment is a positioning server; the positioning integrity requirement information is sent when the second network equipment determines that integrity detection needs to be carried out on the positioning auxiliary information according to the service type of the positioning service corresponding to the positioning request sent by the positioning client;

the first network equipment carries out integrity detection on the obtained positioning auxiliary information according to the positioning integrity requirement information to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information;

the first network device sends the positioning auxiliary information and the positioning integrity warning indication to the second network device, and the positioning integrity warning indication is used for limiting the extreme difference point of the positioning auxiliary information when the second network device processes the positioning auxiliary information.

2. The method of claim 1, wherein the positioning integrity requirement information comprises at least one of:

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

a health risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

3. The method of claim 1, wherein the positioning integrity requirement information is carried in quality of service (QoS) indicator requirement information, the QoS indicator requirement information further comprising positioning accuracy requirement information.

4. The method of claim 3, wherein the method further comprises:

and the first network equipment carries out auxiliary positioning processing according to the positioning precision requirement information to obtain the positioning auxiliary information.

5. The method according to any of claims 1-4, wherein the positioning assistance information is an assistance measurement or a position estimate.

6. The method of claim 5, wherein when the positioning assistance information is an assistance measurement, the positioning integrity alarm indication indicates any one of: the auxiliary measurement value is reliable and unreliable, and is at the critical point of the positioning integrity requirement;

when the positioning assistance information is a position estimation value, the positioning integrity alarm indication is used to indicate any one of the following: the position estimate is valid, the position estimate is invalid, and the position estimate is about to fail.

7. An assisted positioning method, comprising:

the second network equipment sends positioning integrity requirement information to the first network equipment when determining that integrity detection needs to be carried out on the positioning auxiliary information according to the service type of a positioning service corresponding to a positioning request sent by a positioning client; the first network equipment is a positioning network entity, and the second network equipment is a positioning server;

the second network device receives positioning assistance information and a positioning integrity warning indication from the first network device, wherein the positioning integrity warning indication is obtained by performing integrity detection on the positioning assistance information according to the positioning integrity requirement information and is used for limiting a range point of the positioning assistance information;

8. The method of claim 7, wherein the positioning integrity requirement information comprises at least one of:

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

9. The method of claim 7, wherein the second network device sending location integrity requirement information to the first network device, comprising:

10. The method of claim 9, wherein the method further comprises:

11. A method according to any of claims 7-10, wherein the positioning assistance information is an assistance measurement or a position estimate.

12. The method of claim 11, wherein when the positioning assistance information is an assistance measurement, the positioning integrity warning indication is used to indicate any one of: the auxiliary measurement value is reliable and unreliable, and is at the critical point of the positioning integrity requirement;

13. A communication device, characterized in that the communication device comprises:

a memory for storing program instructions;

a transceiver for receiving positioning integrity requirement information from a second network device; the communication equipment is first network equipment, the first network equipment is a positioning network entity, and the second network equipment is a positioning server; the positioning integrity requirement information is sent when the second network equipment determines that integrity detection needs to be carried out on the positioning auxiliary information according to the service type of the positioning service corresponding to the positioning request sent by the positioning client;

a processor for calling the program instructions stored in the memory and executing according to the obtained program: according to the positioning integrity requirement information, integrity detection is carried out on the obtained positioning auxiliary information, and a positioning integrity alarm indication corresponding to the positioning auxiliary information is obtained;

the transceiver is further configured to send the positioning assistance information and the positioning integrity warning indication to the second network device, where the positioning integrity warning indication is used to limit a range of the positioning assistance information when the second network device processes the positioning assistance information.

14. The communications device of claim 13, wherein the location integrity requirement information comprises at least one of:

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

15. The communications device of claim 13, wherein said positioning integrity requirement information is carried in quality of service (QoS) indicator requirement information, said QoS indicator requirement information further comprising positioning accuracy requirement information.

16. The communications device of claim 15, wherein the processor is further configured to invoke program instructions stored in the memory to perform, in accordance with the obtained program:

17. A communication device as claimed in any of claims 13 to 16, wherein the positioning assistance information is an assistance measurement or a position estimate.

18. The communications device of claim 17, wherein when the positioning assistance information is an assistance measurement, the positioning integrity alert indication indicates any one of: the auxiliary measurement value is reliable and unreliable, and is at the critical point of the positioning integrity requirement;

19. A communication device, characterized in that the communication device comprises:

a memory for storing program instructions;

the positioning system comprises a transceiver and a positioning client, wherein the transceiver is used for sending positioning integrity requirement information to first network equipment and receiving positioning auxiliary information and a positioning integrity alarm indication from the first network equipment when determining that the integrity of the positioning auxiliary information needs to be detected according to the service type of a positioning service corresponding to a positioning request sent by the positioning client, wherein the positioning integrity alarm indication is obtained by detecting the integrity of the positioning auxiliary information according to the positioning integrity requirement information and is used for limiting the range point of the positioning auxiliary information; the communication equipment is second network equipment, the first network equipment is a positioning network entity, and the second network equipment is a positioning server;

20. The communications device of claim 19, wherein the location integrity requirement information comprises at least one of:

an integrity horizontal position protection threshold;

an integrity vertical position protection threshold;

integrity risk requirement value;

a horizontal position early warning threshold value;

a vertical position early warning threshold value;

a reliability requirement indication.

21. The communications device of claim 19, wherein the transceiver is further configured to:

22. The communications device of claim 21, wherein the transceiver is further configured to:

receiving a positioning request from a positioning client;

23. A communications device as claimed in any of claims 19 to 22, wherein the positioning assistance information is an assistance measurement or a position estimate.

24. The communications device of claim 23, wherein when the positioning assistance information is an assistance measurement, the positioning integrity alert indication indicates any one of: the auxiliary measurement value is reliable and unreliable, and is at the critical point of the positioning integrity requirement;

25. An auxiliary positioning device, the device comprising:

a receiving unit, configured to receive location integrity requirement information from a second network device; the auxiliary positioning device is a first network device, the first network device is a positioning network entity, and the second network device is a positioning server; the positioning integrity requirement information is sent when the second network equipment determines that integrity detection needs to be carried out on the positioning auxiliary information according to the service type of the positioning service corresponding to the positioning request sent by the positioning client;

the processing unit is used for detecting the integrity of the obtained positioning auxiliary information according to the positioning integrity requirement information to obtain a positioning integrity alarm indication corresponding to the positioning auxiliary information;

a sending unit, configured to send the positioning assistance information and the positioning integrity warning indication to the second network device, where the positioning integrity warning indication is used to limit a range point of the positioning assistance information when the second network device processes the positioning assistance information.

26. An auxiliary positioning device, the device comprising:

a sending unit, configured to send positioning integrity requirement information to the first network device when determining that integrity detection needs to be performed on the positioning assistance information according to a service type of a positioning service corresponding to a positioning request sent by a positioning client; the auxiliary positioning device is a second network device, the first network device is a positioning network entity, and the second network device is a positioning server;

a receiving unit, configured to receive positioning assistance information and a positioning integrity warning indication from the first network device, where the positioning integrity warning indication is obtained by performing integrity detection on the positioning assistance information according to the positioning integrity requirement information, and is used to limit a range point of the positioning assistance information;

27. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-6 or to perform the method of any one of claims 7-12.