CN117014806A

CN117014806A - Communication method and communication device

Info

Publication number: CN117014806A
Application number: CN202210467112.2A
Authority: CN
Inventors: 李建锋; 刘梦婷
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-11-07
Also published as: WO2023207811A1

Abstract

The application provides a communication method and a communication device, wherein the method comprises the following steps: the terminal device sends first information to the network device, the first information indicating N deviation amounts and/or statistics of the N deviation amounts, the N deviation amounts including a first deviation amount, the first deviation amount being a difference between first location information determined from a reference signal and second location information determined from an absolute location of the terminal device and an absolute location of at least one access network device; the terminal device receives second information from the network device, the second information indicating a positioning integrity monitoring result of the terminal device. The method can improve the positioning accuracy and the reliability.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

Along with the expansion of application scenes of a mobile communication system, more and more application scenes exist in positioning requirements, such as an automatic driving scene in the internet of vehicles, a railway safety scene, a flow automation scene in the industrial internet of things, a mobile payment scene and the like. The terminal equipment and the plurality of base stations can acquire the position coordinates of the terminal equipment through the transmitted reference signals and the position coordinates of the base stations.

In an actual positioning scene, the problem that the position information obtained by positioning the terminal equipment is greatly deviated possibly due to factors such as base station faults, multipath environment or signal interference and the like can not meet the positioning requirement.

Disclosure of Invention

The embodiment of the application provides a communication method and a communication device, which are used for improving positioning accuracy and reliability.

In a first aspect, a communication method is provided, which may be performed by a terminal device or a module (e.g. a chip) configured in (or for) the terminal device. The method performed by the terminal device will be described below as an example.

The method comprises the following steps: the terminal device sends first information to the network device, the first information indicating N deviation amounts and/or statistics indicating the N deviation amounts, wherein N is a positive integer, the N deviation amounts include a first deviation amount, and the first deviation amount is a difference value between the first position information and the second position information. Wherein the first location information is determined based on a reference signal and the second location information is determined based on an absolute location of the terminal device and an absolute location of at least one access network device. The terminal device receives second information from the network device, the second information indicating a positioning integrity monitoring result of the terminal device.

According to the above-mentioned scheme, the terminal device may provide, to the network device, a plurality of deviation amounts between the measured value of the location information determined based on the reference signal and the calculated value of the location information obtained based on the absolute location of the access network device and the absolute location of the terminal device, and/or statistics of the plurality of deviation amounts, so that the network device performs positioning integrity monitoring, and obtains a positioning integrity monitoring result from the network device. The terminal equipment judges whether positioning is reliable or not based on the integrity monitoring result, so that the probability of using positioning information which does not meet the positioning integrity requirement by the terminal equipment can be reduced, the positioning precision can be improved, the positioning reliability is further improved, and the implementation complexity and the power consumption cost caused by the positioning integrity monitoring of the terminal equipment can be reduced.

With reference to the first aspect, in certain implementation manners of the first aspect, the at least one access network device includes a first access network device and a reference access network device, and the reference signal includes a reference signal sent by the first access network device and a reference signal sent by the reference access network device. The first location information is determined based on a signal arrival time difference, which is a difference between an arrival time of a reference signal transmitted by the first access network device and an arrival time of a reference signal transmitted by the reference access network device, and a speed of light. The second location information is a difference between a first euclidean distance, which is a euclidean distance of an absolute location of the terminal device and an absolute location of the first access network device, and a second euclidean distance, which is a euclidean distance of an absolute location of the terminal device and an absolute location of the reference access network device.

According to the above scheme, when the terminal device adopts the TDOA location method, the first location information may be a distance difference obtained based on a reference signal arrival time difference between an access network device and a reference access network device, and the second location information may be a difference in euclidean distance between the access network device and the reference access network device, and the reference access network device and the terminal device, respectively, where the difference is a difference between the first location information and the second location information. The parameter definition of the positioning integrity monitoring of the TDOA positioning mode is provided, so that the network equipment can monitor the positioning integrity of the position information obtained by the TDOA positioning mode and obtain a monitoring result, the probability that the terminal equipment uses the positioning information which does not meet the positioning integrity requirement can be reduced, the positioning precision can be improved, and the positioning reliability is further improved.

With reference to the first aspect, in certain implementation manners of the first aspect, the at least one access network device includes a first access network device, and the reference signal includes a reference signal sent by the first access network device and/or a reference signal sent by the terminal device. The first location information is a relative distance of the first access network device and the terminal device determined according to the reference signal. The second location information is a euclidean distance of an absolute location of the terminal device from an absolute location of the first access network device.

According to the scheme, the parameter definition of the positioning integrity monitoring of the TOA positioning mode is provided, so that the network equipment can monitor the positioning integrity of the position information obtained by the TOA positioning mode and obtain a monitoring result, the probability that the terminal equipment uses the positioning information which does not meet the positioning integrity requirement can be reduced, the positioning precision can be improved, and the positioning reliability is further improved.

With reference to the first aspect, in certain implementation manners of the first aspect, the at least one access network device includes a first access network device, and the reference signal is a reference signal sent by the first access network device. The first location information comprises an azimuth angle and/or a pitch angle of the terminal device relative to the first access network device, which are determined according to a reference signal sent by the first access network device. The second location information is an azimuth and/or a pitch angle of the terminal device relative to the first access network device determined from the absolute location of the terminal device and the absolute location of the first access network device.

According to the scheme, the parameter definition of the positioning integrity monitoring of the AOD positioning mode is provided, so that the network equipment can monitor the positioning integrity of the position information obtained by the AOD positioning mode and obtain a monitoring result, the probability that the terminal equipment uses the positioning information which does not meet the positioning integrity requirement can be reduced, the positioning precision can be improved, and the positioning reliability is further improved.

With reference to the first aspect, in certain embodiments of the first aspect, the method further comprises: the terminal device receives R reference signals from M access network devices, wherein the M access network devices comprise the at least one access network device, M is a positive integer, and R is an integer greater than or equal to M. The terminal equipment determines the absolute position of the terminal equipment according to the M reference signals.

With reference to the first aspect, in certain implementation manners of the first aspect, the first information further indicates an absolute position and/or a positioning manner of the terminal device.

According to the above scheme, the terminal device can also notify the network device of the absolute position of the terminal device through the first information, so that the network device can perform integrity monitoring based on the absolute position obtained by the positioning and resolving of the terminal device, but the application is not limited to this, and the network device can also acquire the absolute position of the terminal device in other manners. And the terminal equipment can also inform the network equipment of the positioning mode adopted by the terminal equipment through the first information so as to enable the network equipment and the terminal equipment to agree on the positioning mode, and the network equipment can obtain an integrity monitoring result by adopting a positioning integrity monitoring mode corresponding to the positioning mode of the terminal equipment.

With reference to the first aspect, in certain implementations of the first aspect, the positioning mode is a time of arrival TOA positioning mode, a time difference of arrival TDOA positioning mode, an angle of arrival AOA positioning mode, an angle of departure AOD positioning mode, and/or a round trip time RTT positioning mode.

With reference to the first aspect, in certain implementations of the first aspect, the second information includes one or more of the following indication information:

the first indication information is used for indicating that the absolute position of the terminal equipment meets or does not meet the positioning integrity requirement;

the second indication information is used for indicating L reference signals, and the positioning of the terminal equipment based on the L reference signals meets the positioning integrity requirement; or the terminal equipment is used for indicating L access network equipment, and the positioning performed by the terminal equipment based on the reference signals sent by the L access network equipment meets the positioning integrity requirement; or the L deviation values are used for indicating that the positioning integrity requirement is met, the positioning performed based on the reference signals corresponding to the L deviation values meets the positioning integrity requirement, and the N deviation values comprise the L deviation values;

the third indication information is used for indicating K reference signals, and the positioning of the terminal equipment based on the K reference signals does not meet the positioning integrity requirement; or the terminal equipment is used for indicating K access network equipment, and the positioning performed by the terminal equipment based on the reference signals sent by the K access network equipment does not meet the positioning integrity requirement; or K deviation values for indicating that the positioning integrity requirement is not met, wherein the positioning performed based on the reference signals corresponding to the K deviation values does not meet the positioning integrity requirement, and the N deviation values comprise the K deviation values;

And fourth indication information for indicating success rate of the positioning integrity monitoring based on the N deviation amounts.

According to the above scheme, the second information may include the first indication information, so as to inform the terminal device that the absolute position obtained by positioning and resolving based on the M reference signals meets or does not meet the positioning integrity requirement. The probability that the terminal equipment uses the position information which does not meet the integrity requirement can be reduced, and the reliability of positioning is improved. The second information may include the second indication information and/or the third indication information, so that the terminal device may determine a reference signal meeting the positioning integrity requirement, and so that the terminal device may obtain location information meeting the integrity requirement based on the reference signal meeting the requirement.

The second information may also include the fourth indication information, optionally the success rate P _S The success rate of determining the fault signal in the N reference signals by the LMF device is referred to, or the success rate of determining the fault access network device in the N access network devices by the LMF device is referred to. P (P) _S And may also be referred to as the accuracy of K fault signals or K faulty access network devices determined by the LMF device. The terminal device can judge whether to execute the fault clearing operation or not by referring to the success rate, so that positioning information meeting the requirement is obtained based on the non-fault signal.

With reference to the first aspect, in certain embodiments of the first aspect, the method further comprises: the terminal equipment determines L reference signals according to the second indication information and/or the third indication information in the second information. The terminal device updates the absolute position of the terminal device according to the L reference signals.

According to the scheme, the terminal equipment can determine the reference signals meeting the positioning integrity requirement, so that the terminal equipment can acquire the position information meeting the integrity requirement based on the reference signals meeting the requirement.

With reference to the first aspect, in certain implementations of the first aspect, the second information is carried in broadcast signaling, multicast signaling, or unicast signaling.

In a second aspect, a communication method is provided, which may be performed by a network device or a module (e.g., a chip) configured in (or for) the network device. The method is described below by taking a network device as an example.

The method comprises the following steps: the network device receives first information from the terminal device, the first information indicating N deviation amounts and/or statistics indicating the N deviation amounts, wherein the N deviation amounts are positive integers, the N deviation amounts include a first deviation amount, the first deviation amount is a difference between first location information determined according to a reference signal and second location information determined according to an absolute location of the terminal device and an absolute location of at least one access network device. The network device sends second information to the terminal device, the second information indicating a positioning integrity monitoring result of the terminal device.

With reference to the second aspect, in certain implementations of the second aspect, the at least one access network device includes a first access network device and a reference access network device, and the reference signal includes a reference signal sent by the first access network device and a reference signal sent by the reference access network device. The first location information is determined based on a signal arrival time difference, which is a difference between an arrival time of a reference signal transmitted by the first access network device and an arrival time of a reference signal transmitted by the reference access network device, and a speed of light. The second location information is a difference between a first euclidean distance, which is a euclidean distance of an absolute location of the terminal device and an absolute location of the first access network device, and a second euclidean distance, which is a euclidean distance of an absolute location of the terminal device and an absolute location of the reference access network device.

With reference to the second aspect, in certain implementations of the second aspect, the at least one access network device includes a first access network device, and the reference signal includes a reference signal sent by the first access network device and/or a reference signal sent by the terminal device. The first location information is a relative distance of the first access network device and the terminal device determined according to the reference signal. The second location information is a euclidean distance of an absolute location of the terminal device from an absolute location of the first access network device.

With reference to the second aspect, in certain implementations of the second aspect, the at least one access network device includes a first access network device, and the reference signal is a reference signal sent by the first access network device. The first location information comprises an azimuth angle and/or a pitch angle of the terminal device relative to the first access network device, which are determined according to a reference signal sent by the first access network device. The second location information is an azimuth and/or a pitch angle of the terminal device relative to the first access network device determined from the absolute location of the terminal device and the absolute location of the first access network device.

With reference to the second aspect, in certain implementations of the second aspect, the first information further indicates an absolute position and/or a positioning manner of the terminal device.

With reference to the second aspect, in some implementations of the second aspect, the positioning mode is a time of arrival TOA positioning mode, a time difference of arrival TDOA positioning mode, an angle of arrival AOA positioning mode, an angle of departure AOD positioning mode, and/or a round trip time RTT positioning mode.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and the network equipment determines the positioning integrity monitoring result of the terminal equipment according to the first information.

With reference to the second aspect, in certain implementations of the second aspect, the second information includes one or more of the following indication information:

With reference to the second aspect, in certain implementations of the second aspect, the second information is carried in broadcast signaling, multicast signaling, or unicast signaling.

In a third aspect, a communication method is provided, which may be performed by a terminal device or a module (e.g. a chip) configured in (or for) the terminal device. The method performed by the terminal device will be described below as an example.

The method comprises the following steps: the terminal equipment sends a reference signal; the terminal device receives fourth information from the network device, the fourth information indicating N offset amounts and/or statistics indicating the N offset amounts, the N offset amounts including a first offset amount, the first offset amount being a difference between first location information determined from the reference signal and second location information determined from an absolute location of the terminal device and an absolute location of the at least one access network device. The terminal device sends fifth information to the network device, the fifth information indicating a positioning integrity monitoring result.

According to the above scheme, the network device provides the terminal device with a plurality of deviation amounts between the measured value of the position information determined based on the reference signal and the calculated value of the position information obtained based on the absolute position of the access network device and the absolute position of the terminal device, and/or statistics of the plurality of deviation amounts, so that the terminal device performs positioning integrity monitoring, and obtains a positioning integrity monitoring result from the terminal device. The network equipment judges whether positioning is reliable or not based on the integrity monitoring result, so that the probability that the network equipment uses positioning information which does not meet the positioning integrity requirement can be reduced, the positioning precision can be improved, the positioning reliability is further improved, and the implementation complexity and the power consumption cost caused by the positioning integrity monitoring of the terminal equipment can be reduced.

In a fourth aspect, a communication method is provided, which may be performed by a network device or a module (e.g. a chip) configured in (or for) the network device. The method is described below by taking a network device as an example.

The method comprises the following steps: the network device sends fourth information to the terminal device, the fourth information indicating N offset amounts and/or statistics indicating the N offset amounts, the N offset amounts including a first offset amount, the first offset amount being a difference between first location information determined from the reference signal and second location information determined from an absolute location of the terminal device and an absolute location of the at least one access network device. The network device receives fifth information from the terminal device, the fifth information indicating a positioning integrity monitoring result.

With reference to the fourth aspect, in certain embodiments of the fourth aspect, the network device receives third information from the access network device, the third information being used to indicate the first location information, or the third information being used to indicate a positioning measurement of the terminal device, the positioning measurement being determined based on a reference signal from the terminal device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the network device determines the N amounts of deviation and/or statistics of the N amounts of deviation according to the third information.

In a fifth aspect, a communication method is provided, which may be performed by an access network device or a module (e.g. a chip) configured in (or for) the access network device. The following description will take an example of the access network device executing the method.

The method comprises the following steps: the access network device receives a reference signal from the terminal device. The access network device sends third information to the network device, the third information being used to indicate the first location information, or the third information being used to indicate a positioning measurement value of the terminal device, the positioning measurement value being determined based on a reference signal from the terminal device.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the access network device determines the third information according to a reference signal from the terminal device.

In a sixth aspect, a communications apparatus is provided, where the apparatus can include modules, either hardware circuitry or software, or a combination of hardware circuitry and software implementation, that perform the methods/operations/steps/actions described in the first aspect. In one design, the apparatus includes: a transceiver unit configured to send first information to a network device, where the first information indicates N deviation amounts and/or indicates statistics of the N deviation amounts, where N is a positive integer, the N deviation amounts include a first deviation amount, the first deviation amount is a difference between first location information and second location information, the first location information is determined according to a reference signal, and the second location information is determined according to an absolute location of a terminal device and an absolute location of at least one access network device; the transceiver unit is further configured to receive second information from the network device, the second information indicating a positioning integrity monitoring result of the apparatus. Optionally, the apparatus further comprises a processing unit for determining a positioning integrity monitoring result of the apparatus based on the second information.

In a seventh aspect, a communications apparatus is provided, where the apparatus can include modules, either hardware circuitry or software, or a combination of hardware circuitry and software implementation, that perform the methods/operations/steps/actions described in the second aspect. In one design, the apparatus includes: and a transceiver unit configured to receive first information from a terminal device, where the first information indicates N deviation amounts and/or indicates statistics of the N deviation amounts, where N is a positive integer, and the N deviation amounts include a first deviation amount, which is a difference between first location information determined according to a reference signal and second location information determined according to an absolute location of the terminal device and an absolute location of at least one access network device. And the receiving and transmitting unit is also used for transmitting second information to the terminal equipment, wherein the second information indicates the positioning integrity monitoring result of the terminal equipment. Optionally, the device further includes a processing unit, configured to perform positioning integrity monitoring according to the first information, to obtain an integrity monitoring result of the terminal device.

In an eighth aspect, a communications apparatus is provided, where the apparatus can include modules, either hardware circuitry or software, or a combination of hardware circuitry and software implementation, that perform the methods/operations/steps/actions described in the third aspect. In one design, the apparatus includes: a transceiver unit for transmitting a reference signal; the transceiver unit is further configured to receive fourth information from the network device, the fourth information indicating N offset amounts and/or statistics indicating the N offset amounts, the N offset amounts including a first offset amount, the first offset amount being a difference between first location information determined from the reference signal and second location information determined from an absolute location of the terminal device and an absolute location of the at least one access network device. The transceiver unit is further configured to send fifth information to the network device, the fifth information indicating a positioning integrity monitoring result. Optionally, the device further includes a processing unit, configured to perform positioning integrity monitoring according to the fourth information, so as to obtain a positioning integrity monitoring result.

In a ninth aspect, a communications apparatus is provided, where the apparatus can include means for performing the method/operation/step/action described in the fourth aspect, where the means can be implemented by hardware circuitry, software, or a combination of hardware circuitry and software. In one design, the apparatus includes: and a transceiver unit configured to send fourth information to the terminal device, where the fourth information indicates N offset amounts and/or statistics indicating the N offset amounts, and the N offset amounts include a first offset amount, where the first offset amount is a difference between first location information determined according to a reference signal and second location information determined according to an absolute location of the terminal device and an absolute location of at least one access network device. The transceiver unit is further configured to receive fifth information from the terminal device, where the fifth information indicates a positioning integrity monitoring result. Optionally, the apparatus further comprises a processing unit for determining a positioning integrity monitoring result based on the second information.

In a tenth aspect, a communications apparatus is provided, where the apparatus can include modules, which can be hardware circuitry, software, or a combination of hardware circuitry and software, that perform the methods/operations/steps/actions described in the fifth aspect. In one design, the apparatus includes: and the receiving and transmitting unit is used for receiving the reference signal from the terminal equipment. The transceiver unit is further configured to send third information to the network device, the third information being used to indicate the first location information, or the third information being used to indicate a positioning measurement value of the terminal device, the positioning measurement value being determined based on a reference signal from the terminal device. Optionally, the processing unit is configured to determine the third information according to a reference signal from the terminal device.

In an eleventh aspect, a communication device is provided that includes a processor. The processor may implement the method of the first aspect and any one of the possible implementations of the first aspect. Alternatively, the processor may implement the method of the third aspect and any possible implementation manner of the third aspect. Optionally, the communication device further comprises a memory for storing a computer program or instructions, the processor being coupled to the memory and operable to execute the computer program or instructions in the memory, such that the method of any one of the possible implementations of the first aspect and the second aspect is performed, or such that the method of any one of the possible implementations of the third aspect and the third aspect is performed.

In a twelfth aspect, a communications apparatus is provided that includes a processor. The processor may implement the method of the second aspect described above and any one of the possible implementations of the second aspect. Alternatively, the processor may implement the method of the fourth aspect and any one of the possible implementations of the fourth aspect. Optionally, the communication device further comprises a memory for storing a computer program or instructions, the processor being coupled to the memory and operable to execute the computer program or instructions in the memory, such that the method of any one of the possible implementations of the second aspect and the second aspect is performed, or such that the method of any one of the possible implementations of the fourth aspect and the fourth aspect is performed.

In a thirteenth aspect, a communications apparatus is provided that includes a processor. The processor may implement the method of the fifth aspect and any one of the possible implementations of the fifth aspect. Optionally, the communication device further comprises a memory for storing a computer program or instructions, the processor being coupled to the memory and operable to execute the computer program or instructions in the memory to implement the fifth aspect and any possible implementation of the fifth aspect described above.

Optionally, the communication device further comprises a communication interface, and the processor is coupled to the communication interface.

In one implementation, the communication apparatus is a communication device, such as a terminal device or a network device. When the communication apparatus is a communication device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication apparatus is a chip configured in a communication device. When the communication device is a chip configured in a communication apparatus, the communication interface may be an input/output interface.

In the present application, the communication interface may be a transceiver, a pin, a circuit, a bus, a module, or other type of communication interface, without limitation.

Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input/output interface may be an input/output circuit.

In a fourteenth aspect, there is provided a processor comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal via the input circuit and transmit a signal via the output circuit, such that the processor performs the methods of the first to fifth aspects and any one of the possible implementations of the first to fifth aspects.

In a specific implementation process, the processor may be one or more chips, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the output signal may be output by, for example and without limitation, a transmitter and transmitted by a transmitter, and the input circuit and the output circuit may be the same circuit, which functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the application does not limit the specific implementation modes of the processor and various circuits.

In a fifteenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions) which, when executed, causes a computer to perform the method of the first to fifth aspects and any one of the possible implementations of the first to fifth aspects.

In a sixteenth aspect, there is provided a computer readable storage medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of any one of the above first to fourth aspects and any one of the possible implementations of the first to fifth aspects.

A seventeenth aspect provides a communication system comprising at least one communication device provided in the sixth aspect and at least one communication device provided in the seventh aspect.

In an eighteenth aspect, there is provided a communication system including at least one communication device provided in the eighth aspect and at least one communication device provided in the ninth aspect. Optionally, the communication system further comprises at least one communication device provided in the tenth aspect.

Drawings

Fig. 1 is a block diagram of a communication system suitable for use in an embodiment of the present application;

FIG. 2 is a schematic flow chart of a communication method provided by an embodiment of the present application;

fig. 3 is a schematic diagram of a terminal device receiving reference signals from M access network devices according to an embodiment of the present application;

fig. 4 is a schematic diagram of a pitch angle and an azimuth angle of an access network device relative to a terminal device according to an embodiment of the present application;

fig. 4A is a schematic diagram of a pitch angle and an azimuth angle of a terminal device relative to an access network device according to an embodiment of the present application;

FIG. 5 is another schematic flow chart diagram of a communication method provided by an embodiment of the present application;

FIG. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application;

Fig. 7 is another schematic structural diagram of a communication device provided in an embodiment of the present application.

Detailed Description

The technical scheme of the application will be described below with reference to the accompanying drawings.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the present application, "first," "second," etc. are used to distinguish similar objects and not necessarily to describe a particular order or precedence. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should also be understood that, in the present application, "when …", "if" and "if" all refer to the corresponding processing that the network element will make under some objective condition, and are not limited in time, nor do they require that the network element must have a judging action when implemented, nor are other limitations meant to be present.

It should also be understood that in the present application, "at least one" means one or more, and "a plurality" means two or more. "at least one item" or the like means one item or more, i.e., any combination of these items, including any combination of single item or plural items. For example, at least one (one) of a, b, or c, represents: a, b, c, a and b, a and c, b and c, a and b and c.

It should also be understood that the term "and/or" is merely one association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. For example, A/B, means: a or B.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: long term evolution (long term evolution, LTE) systems, LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, fifth generation (5th generation,5G) systems such as a 5G New Radio (NR) system, a vehicle-to-evaluation (V2X) system, and future communication systems such as a sixth generation mobile communication system, etc. The application is not limited in this regard.

It should be understood that the positioning method provided by the present application may be applied to various scenarios, for example, one or more of the following communication scenarios: the application is not limited in this regard, as mobile broadband (enhanced mobile broadband, eMBB), high reliability low latency (ultra-reliable and low latency communications, URLLC), mass machine type communications (massive machine type of communication, mctc), internet of things (internet of things, IOT), device-to-device (D2D), vehicle-to-vehicle (vehicle to vehicle, V2V), and the like are enhanced.

Fig. 1 is a communication system architecture diagram suitable for use in the communication method provided in the embodiment of the present application. As shown in fig. 1, in the communication system, a User Equipment (UE) is connected to a radio access network through a LTE-Uu and/or NR-Uu interface via next-generation base stations (next-generatione NodeB, ng-eNB) and a gNB, respectively; the radio access network is connected to the core network via an access and mobility management function (access and mobility management function, AMF) through an NG-C interface. Wherein the next generation radio access network (next-generation radio access network, NG-RAN) comprises one or more NG-enbs; the NG-RAN may also include one or more gnbs; the NG-RAN may also include one or more NG-enbs and a gNB. The ng-eNB is an LTE base station accessed to the 5G core network, and the gNB is a 5G base station accessed to the 5G core network. The core network includes functions such as AMF and location management functions (location management function, LMF). The AMF is used for realizing functions such as access management and the like, and the LMF is used for realizing functions such as positioning and the like. The AMF and the LMF are connected through an NL1 interface. LMFs are used to provide different types of location services for UEs, including but not limited to locating UEs and communicating assistance data to UEs, etc. The control plane of the LMF is an enhanced services mobile location center (enhanced serving mobile location centre, E-SMLC) for managing coordination and scheduling of resources required by the UE location. The user plane of the LMF is a secure user plane location (secure user plane location, SUPL) positioning platform (SUPL location platform, SLP) that can interact and transmit at the user plane via the SUPL protocol. The SUPL enabled UE may be referred to as a SET.

It should be understood that fig. 1 is only a schematic diagram of one communication system architecture of the communication method provided in the embodiment of the present application, but the present application is not limited thereto, and the communication method provided in the embodiment of the present application may also be applicable to other communication system architectures.

The terminal device in the embodiments of the present application may also be referred to as a UE, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiments of the present application may be a mobile phone, a tablet computer, a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in transportation security, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, a WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with a wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved public land mobile communication network (public land mobile network, PLMN), or the like. It should be understood that the present application is not limited to a specific form of terminal device.

The access network device in the embodiment of the application can be a device with a wireless receiving and transmitting function in an access network. The apparatus includes, but is not limited to: a base station, evolved node B (eNB), a radio network controller (radio network controller, RNC), a Node B (NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved nodeB, or home node B, HNB), an Access Point (AP) in a wireless fidelity (wireless fidelity, WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (transmission point, TP), or a transmission reception point (transmission and reception point, TRP), and so forth. The device may also be a network node constituting a gNB or a transmission point, such as a Distributed Unit (DU), etc. It should be understood that the present application is not limited to a particular form of access network device.

The network device provided by the embodiment of the application can be a device with a positioning management function in a network, and the network device can be called an LMF device. Including but not limited to core network devices, access network devices, or servers in a network, the application is not limited to the specific form of network devices.

Aiming at the problem that the positioning requirement cannot be met due to large deviation possibly caused by the factors such as faults of reference signal sending equipment for positioning, multipath environment or signal interference and the like, the application provides that when the number of positioning processes is larger than the unknown number to be solved, positioning redundant information exists, and positioning integrity monitoring can be carried out by utilizing the redundant information. The application provides a positioning integrity monitoring method, wherein a terminal device can provide a plurality of deviation amounts between a measured value of position information determined based on reference signals from a plurality of access network devices and a calculated value of position information obtained based on an absolute position of the access network device and an absolute position of the terminal device, or statistics of the plurality of deviation amounts, for the network device to monitor positioning integrity and acquire a positioning integrity monitoring result from the network device. The terminal equipment judges whether positioning is reliable or not based on the integrity monitoring result, so that the probability that the terminal equipment uses positioning information which does not meet the positioning integrity requirement can be reduced, the positioning precision can be improved, and the positioning reliability is further improved.

Fig. 2 is a schematic flow chart of a communication method 200 provided by an embodiment of the present application. Fig. 2 illustrates an example of a network device as an LMF device, and it should be understood that the network device may also be other devices with a location management function in a network, such as an access network device or a server, which is not limited in this disclosure. One or more of the LMF device, the terminal device, or the access network device as shown in fig. 2 may also be replaced with a chip, module, etc. for performing the method.

S201, the terminal equipment sends first information to the LMF equipment. Accordingly, the LMF device receives the first information from the terminal device.

The first information indicates N offsets and/or statistics indicating the N offsets. The N offsets include a first offset, which is a difference between first location information determined from the reference signal and second location information determined from an absolute location of the terminal device and an absolute location of the at least one access network device.

The terminal equipment receives R reference signals from M access network equipment, wherein the M access network equipment comprises the at least one access network equipment, M is a positive integer, and R is an integer greater than or equal to M. The terminal device determines whether the R reference signals can be used for positioning, and/or whether the M access network devices have faults, which cannot assist the terminal device in positioning. Specifically, the terminal device obtains an absolute position of the terminal device, and determines N offsets based on the absolute position and reference signals of the access network device, so as to determine whether the R reference signals can be used for positioning, and/or determine whether the M access network devices have faults.

In one example, the terminal device may employ determining an absolute position of the terminal device based on the R reference signals.

In another example, the terminal device may obtain the absolute position of the terminal device from other means than the access network device, such as a sensor. For example, the terminal device may acquire the absolute position of the terminal device from an inertial navigation system, a global satellite navigation system, or the like.

The following describes a specific embodiment of determining N offsets when the terminal device performs positioning in different positioning manners, where the terminal device may use one or more of the following positioning manners:

time of arrival (TOA) positioning, time difference of arrival (time difference of arrival, TDOA) positioning, angle of arrival (angles of arrival, AOA) positioning, angle of departure (angle of departure, AOD) positioning, or Round Trip Time (RTT) positioning.

Specific embodiments of determining N offsets by the terminal device include, but are not limited to, the following embodiments:

in a first embodiment, the positioning manner adopted by the terminal device may include a TOA positioning manner, where the terminal device determines M offsets based on R reference signals from M access network devices, an absolute position of the terminal device, and an absolute position of the M access network devices. Where n=m. In the following, an example in which the terminal device determines the first offset corresponding to the first access network device is described as an example, and offsets corresponding to other access network devices may be determined by referring to the first offset.

The reference signal used for determining the first position information is a reference signal sent by the first access network device, and the first position information is the relative distance between the first access network device and the terminal device, which is determined according to the reference signal sent by the first access network device. The at least one access network device comprises a first access network device, and the second location information is a euclidean distance between an absolute location of the terminal device and the absolute location of the first access network device.

For example, as shown in fig. 3, the terminal device receives R reference signals from M access network devices, and the terminal device may determine a relative distance between the terminal device and each access network device according to each reference signal by using a TOA positioning manner, and perform positioning calculation to obtain an absolute position of the terminal device. The absolute position may be expressed, for example, as position coordinatesThe application is not limited thereto and the terminal device may acquire the absolute position of the terminal device in other ways.

The terminal equipment determines M offset values corresponding to the M access network equipment. Taking a first access network device as an access network device i as an example, i is an integer less than or equal to M. The terminal equipment sends according to the access network equipment iThe transmission duration (or referred to as transmission delay) t of the reference signal of (a) _i And the speed of light c, determining first position information d corresponding to the access network equipment i _i I.e. the relative distance between the terminal device and the access network device i, the relative distance d can be derived, for example, with reference to the following equation _i ：

d _i ＝c*t _i 。

The first location information may be referred to as a measured pseudo range, i.e. a distance between the first access network device and the terminal device measured based on the reference signal transmitted by the first access network device, but the present application is not limited thereto.

And the terminal equipment is according to the absolute position of the terminal equipmentAnd the absolute position (x _i ，y _i ，z _i ) Determining second position information k corresponding to access network equipment i _i I.e. the euclidean distance of the absolute position of the terminal device from the absolute position of the access network device i, the second position information k corresponding to the access network device i can be derived, for example, by referring to the following equation _i ：

Wherein,is the local clock error (which may be referred to as local clock error) obtained by the positioning and resolving of the terminal device.

The second location information may be referred to as a calculated pseudorange, i.e. the distance of the first access network device from the terminal device calculated based on the absolute location of the terminal device and the absolute location of the access network device i, but the application is not limited thereto.

The terminal device is based on the first position information d _i And second position information k _i And determining a first offset corresponding to the access network equipment i.

w _i ＝d _i -k _i

The terminal equipment determines the offset corresponding to each access network equipment in the N access network equipment by adopting the mode of determining the first offset, so as to obtain N offsets, wherein M=N. The terminal device may obtain an offset vector W, where the offset vector includes the N offsets, and an i element in the offset vector W is a first offset W corresponding to the access network device i _i . But the present application is not limited thereto.

In the second embodiment, the positioning manner adopted by the terminal device may include a TDOA positioning manner, where the terminal device determines N offsets based on R reference signals from M access network devices, an absolute position of the terminal device, and an absolute position of the M access network devices. Wherein n=m-1. The following description will take an example in which the terminal device determines the first offset corresponding to the first access network device. The offsets corresponding to other access network devices may be determined with reference to the first offset.

The reference signal used for determining the first position information comprises a reference signal sent by the first access network device and a reference signal sent by the reference access network device, the first position information is determined based on a signal arrival time difference and a light speed, and the signal arrival time difference is a difference between the arrival time of the reference signal sent by the first access network device and the arrival time of the reference signal sent by the reference access network device. The at least one access network device includes a first access network device and a reference access network device of the M access network devices, and the second location information is a difference between a first euclidean distance and a second euclidean distance, where the first euclidean distance is a euclidean distance between an absolute location of the terminal device and an absolute location of the first access network device, and the second euclidean distance is a euclidean distance between an absolute location of the terminal device and an absolute location of the reference access network device.

For example, the terminal device receives R reference signals from M access network devices, and the terminal device may determine an absolute position of the terminal device according to the R reference signals by using a TDOA location method. Specifically, the terminal device may use one access network device of the M access network devices as a reference access network deviceCalculating the arrival time difference between the arrival time of the reference signal of each access network device except the reference access network device and the arrival time of the reference signal of the reference access network device in the M access network devices, and carrying out positioning calculation based on the N arrival time differences to obtain the absolute position of the terminal deviceThe application is not limited thereto and the terminal device may acquire the absolute position of the terminal device in other ways.

The terminal equipment determines N offset values corresponding to N access network equipment except the reference access network equipment. Taking reference to the access network device as the access network device 1 shown in fig. 3, the first access network device is exemplified by access network device i, where i is an integer less than M and greater than 1. The terminal device determines the signal arrival time difference delta t between the arrival time of the reference signal of the access network device i and the arrival time of the reference signal of the access network device 1 _i And determining first position information rho corresponding to the access network equipment i by the speed of light _i . The first position information ρ can be obtained, for example, by referring to the following equation _i ：

ρ _i ＝c*Δt _i 。

The first location information may be referred to as a measured pseudo range, that is, a difference between a distance of the first access network device relative to the terminal device and a distance of the reference access network device relative to the terminal device measured based on the reference signal transmitted by the first access network device and the reference signal transmitted by the reference access network device, but the present application is not limited thereto.

The terminal device also determines the absolute position of the terminal deviceAbsolute position (x _i ，y _i ，z _i ) Is the first Euclidean distance +.>Determining the absolute position of the terminal device>Absolute position (x) with reference access network device ₁ ，y ₁ ，z ₁ ) Is the Euclidean distance of (2)And the terminal equipment obtains second position information, namely a difference value between the first Euclidean distance and the second Euclidean distance, based on the first Euclidean distance and the second Euclidean distance. The second location information l corresponding to the access network device i can be obtained, for example, by referring to the following equation _i ：

The second location information may be referred to as calculating a pseudo range, that is, a difference between a calculated distance of the first access network device from the terminal device and a calculated distance of the reference access network device from the terminal device based on an absolute position of the first access network device, an absolute position of the reference access network device, and an absolute position of the terminal device, but the present application is not limited thereto.

The terminal device is based on the first position information rho _i And second position information l _i And determining a first offset corresponding to the access network equipment i.

w _i ＝ρ _i -l _i

The terminal equipment adopts the mode of determining the first offset to determine the offset corresponding to each access network equipment in N access network equipment except the reference access network equipment to obtain N offsets, wherein N=M-1, and M is specifically an integer greater than or equal to 2. The terminal device may obtain an offset vector W, where the offset vector includes the N offsets, and the i-1 element in the offset vector W is a first offset W corresponding to the access network device i if the access network device 1 is a reference access network device _i . But the present application is not limited thereto.

In the third embodiment, the positioning manner adopted by the terminal device may include an AOD positioning manner, and the terminal device determines N offsets based on R reference signals from M access network devices, an absolute position of the terminal device, and an absolute position of the M access network devices. Where n=m. The following description will take an example in which the terminal device determines the first offset corresponding to the first access network device. The offsets corresponding to other access network devices may be determined with reference to the first offset.

The reference signal used for determining the first position information is a reference signal sent by the first access network device, and the first position information comprises an azimuth angle and/or a pitch angle of the terminal device relative to the first access network device, which are determined according to the reference signal sent by the first access network device. And the at least one access network device comprises the first access network device, and the second position information is an azimuth angle and/or a pitch angle of the terminal device relative to the first access network device, which are determined according to the absolute position of the terminal device and the absolute position of the first access network device.

For example, the terminal device receives M reference signals from M access network devices, and the terminal device can determine the absolute position of the terminal device according to the M reference signalsThe application is not limited thereto and the terminal device may acquire the absolute position of the terminal device in other ways.

The terminal equipment determines M offset values corresponding to the M access network equipment. If the first access network device is access network device i, i is an integer less than or equal to M. The terminal equipment measures and obtains first position information according to the reference signal of the access network equipment i, wherein the first position information comprises the leaving azimuth angle (azimuth-angle of departure, A-AOD) alpha of the reference signal of the access network equipment i _i And/or zenith angle of departure (Z-angle of departure, Z-AOD) beta _i As shown in fig. 4. The azimuth of arrival of the reference signal may characterize the azimuth of the terminal device with respect to the access network device i, and the zenith angle of arrival may characterize the elevation of the terminal device with respect to the access network device i.

Terminal equipment baseAbsolute position of terminal equipmentAbsolute position (x _i ，y _i ，z _i ) Calculating second position information comprising +.A. based on the absolute position of the terminal device>Absolute position (x _i ，y _i ，z _i ) The calculated leaving azimuth angle of the terminal device with respect to the access network device i>And/or zenith angle of departure +.>Leave azimuth +.>And zenith angle->The calculation method can be as follows:

/>

and the terminal equipment determines a first offset corresponding to the access network equipment i based on the first position information and the second position information.

In one example, the first offset w _i Including offset w from azimuth _α，i And/or offset w of zenith angle of departure _β，i ，

The terminal equipment adopts the first determinationAnd determining the offset corresponding to each of the M access network devices to obtain M offsets, wherein each offset in the M offsets comprises an offset leaving the azimuth angle and an offset leaving the zenith angle. Where n=m. The terminal device may obtain an offset vector W, where the offset vector includes offset amounts of the departure azimuth angle and the departure azimuth angle included in the offsets corresponding to the N access network devices, and the offset vector W includes 2N elements in total, where the ith element in the offset vector W is offset amount W of the departure azimuth angle in the first offset corresponding to the access network device i _α，i And the (n+i) th element in the offset vector W is an offset W of the zenith angle of departure in the first offset corresponding to the access network device i _β，i But the present application is not limited thereto.

In another example, when the positioning manner adopted by the terminal device may include an AOD positioning manner, the terminal device may determine the leaving azimuth α of the reference signal of the access network device i _i And zenith angle of departure beta _i And according to the departure azimuth angle alpha _i Angle of zenith departure beta _i Absolute position of the terminal deviceAbsolute position (x _i ，y _i ，z _i ) Determining a first offset corresponding to the access network equipment i, wherein the first offset w is as follows _i Comprises the following w _Δx，i And w _Δz，i ：

The terminal equipment adopts the mode for determining the first offset to determine the offset corresponding to each access network equipment in M access network equipment to obtain M access network equipmentOffset, each of the M offsets including an offset from azimuth and an offset from zenith angle of departure. Where n=m. The terminal device may obtain an offset vector W including an offset of each azimuth angle of departure and an offset of the zenith angle of departure of the N offsets, where the offset vector W includes 2N elements in total, and the ith element in the offset vector W is W in the first offset corresponding to the access network device i _Δx，i And the (n+i) th element in the offset vector W is W in the first offset corresponding to the access network device i _Δz，i But the present application is not limited thereto.

Or, the positioning mode adopted by the terminal equipment may include an AOA positioning mode, and the first location information includes an azimuth angle and/or a pitch angle of the first access network equipment relative to the terminal equipment, which are determined according to a reference signal sent by the first access network equipment. And the second location information is an azimuth and/or a pitch angle of the first access network device relative to the terminal device, which is determined according to the absolute position of the terminal device and the absolute position of the first access network device.

For example, taking access network device i as an example, the terminal device measures first location information according to a reference signal of the access network device i, where the first location information includes an arrival azimuth (A-AOA) of the reference signal of the access network device i to reach the terminal deviceAnd/or zenith angle of arrival (Z-AOA) θ _i As shown in fig. 4A. The azimuth of arrival of the reference signal may characterize the azimuth of the terminal device with respect to the access network device i, and the zenith angle of arrival may characterize the elevation of the terminal device with respect to the access network device i.

The terminal device is also based on the absolute position of the terminal deviceAbsolute position (x _i ，y _i ，z _i ) Calculated to obtainTo second location information comprising ++based on absolute location of the terminal device>Absolute position (x _i ，y _i ，z _i ) The calculated azimuth angle of arrival of the access network device i relative to the terminal device>And/or zenith angle of arrival +.>Arrival azimuth +.>And zenith angle of arrival->The calculation method can be as follows:

In one example, the first offset w _i Including the offset of the azimuth of arrivalAnd/or the offset w of zenith angle of arrival _θ，i ，

The terminal device can obtain an offset vector W, which includes the offsets of the arrival azimuth angles and the offset of the zenith arrival angles contained in the offsets corresponding to the N access network devicesThe offset vector W includes 2N elements altogether, where the ith element in the offset vector W is an offset reaching the azimuth angle in the first offset corresponding to the access network device iAnd the (n+i) th element in the offset vector W is an offset W of the zenith arrival angle in the first offset corresponding to the access network device i _θ，i But the present application is not limited thereto.

In another example, when the positioning manner adopted by the terminal device may include an AOA positioning manner, the terminal device may determine an arrival azimuth of the reference signal of the access network device iAnd zenith angle of arrival θ _i And is dependent on the azimuth of arrival->Zenith angle of arrival θ _i Absolute position of the terminal device>Absolute position (x _i ，y _i ，z _i ) Determining a first offset corresponding to the access network equipment i, wherein the first offset w is as follows _i Comprises the following w _Δx′，i And w _Δz′，i ：

The terminal device can obtain an offset vector W, the offset vector comprises an offset of an arrival azimuth and an offset of a zenith arrival angle contained in the corresponding offset of each access network device, the offset vector W comprises 2N elements in totalThe ith element in the offset vector W is W in the first offset corresponding to the access network device i _Δx′，i And the (n+i) th element in the offset vector W is W in the first offset corresponding to the access network device i _Δz′，i But the present application is not limited thereto.

In the fourth embodiment, the positioning manner adopted by the terminal device may include an RTT positioning manner (or called multi-RTT), and the terminal device determines N offsets based on R reference signals from M access network devices and reference signals of the terminal device, an absolute position of the terminal device, and an absolute position of the M access network devices. Where n=m. The following description will take an example in which the terminal device determines the first offset corresponding to the first access network device. The offsets corresponding to other access network devices may be determined with reference to the first offset.

The reference signal used for determining the first position information is a reference signal sent by the first access network device and a reference signal sent by the terminal device, and the first position information comprises a distance between the first access network device and the terminal device, which is determined according to the reference signal sent by the first access network device and the signal sent by the terminal device. The at least one access network device comprises the first access network device, and the second location information is a distance between the first access network device and the terminal device determined according to an absolute location of the terminal device and an absolute location of the first access network device.

For example, the terminal device sends reference signals and receives R reference signals from M access network devices, and the terminal device may determine the relative distance between the terminal device and each access network device according to the sent and received reference signals by adopting a multi-RTT positioning manner, and perform positioning calculation to obtain the absolute position of the terminal deviceThe application is not limited thereto and the terminal device may acquire the absolute position of the terminal device in other ways. />

The terminal equipment determines M offset values corresponding to the M access network equipment. Taking a first access network device as an access network device i as an example I is an integer less than or equal to M. The terminal equipment sends a reference signal, the access network equipment i receives the reference signal and then sends the reference signal to the terminal equipment, the terminal equipment receives the reference signal from the access network equipment i, and the terminal equipment can determine the time interval t between the terminal equipment sending the reference signal and the time when the terminal equipment receiving the reference signal from the access network equipment i _d，i . The terminal device may obtain the time interval t from the access network device i _p，i The time interval t _p，i The time interval between receiving the reference signal from the terminal device for the access network device and transmitting the reference signal to the terminal device. The terminal equipment can determine the round trip transmission delay of the reference signal as t _d，i -t _p，i Is the absolute value of (c). The terminal equipment determines the first position information d corresponding to the access network equipment i according to the round trip transmission delay and the optical speed c _i I.e. the relative distance between the terminal device and the access network device i, the relative distance d can be derived, for example, with reference to the following equation _i ：

The |x| represents the absolute value of x. And the terminal equipment is according to the absolute position of the terminal equipmentAnd the absolute position (x _i ，y _i ，z _i ) Determining second position information p corresponding to access network equipment i _i I.e. the euclidean distance of the absolute position of the terminal device from the absolute position of the access network device i, the second position information p corresponding to the access network device i can be obtained, for example, by referring to the following equation _i ：

The terminal device is based on the first position information d _i And second position information p _i Determining the corresponding access network equipment iA first offset.

w _i ＝d _i -p _i

In the fourth embodiment, the positioning manners adopted by the terminal device may include an AOD positioning manner and an RTT positioning manner (or called multi-RTT), and the terminal device determines w by adopting the manners _Δx，i 、wΔ _z，i 、d _i And p _i Thereafter, based on w _Δx，i 、w _Δz，i 、d _i And p _i Determining a first offset w corresponding to access network equipment i _i The first offset w may be obtained, for example, by reference to _i ：

w _i ＝w _Δx，i +w _Δz，i +d _i -p _i ，

Namely:

the terminal device determines the offset corresponding to each of the N access network devices by adopting the manner of determining the first offset in the fourth embodiment, so as to obtain N offsets, where m=n. The terminal device may obtain an offset vector W, where the offset vector includes the N offsets, and an i element in the offset vector W is a first offset W corresponding to the access network device i _i . But the present application is not limited thereto.

The parameter definitions of the corresponding positioning integrity monitoring are provided for different positioning modes, so that the network equipment can perform positioning integrity monitoring based on the offset vector and/or the statistic of the offset and obtain a monitoring result.

In one embodiment, after determining the N offsets, the terminal device may send first information to the LMF device, where the first information may include the N offsets. So that the LMF device performs location integrity monitoring (monitor) of the terminal device based on the N offsets.

In another embodiment, after determining N offsets, the terminal device may obtain statistics of the N offsets based on the N offsets. The first information sent by the terminal device to the LMF device may include statistics of the N offsets. So that the LMF device monitors the positioning integrity of the terminal device based on the statistics of the N offsets.

As an example and not by way of limitation, the statistic of the N offsets may be a mean of the N offsets, or a weighted square sum of the N offsets, or a mean of the weighted square sum of the N offsets.

For example, the terminal device may determine statistics of the N offsets based on the offset vector W. Illustratively, the offset vector W is a column vector, and the statistics E of the N offsets may be obtained by referring to the following equation:

E＝W ^T CW,

Wherein W is ^T For the transpose matrix of W, C is the covariance matrix of the offset vector W, and the matrix C may be a diagonal matrix composed of the weight coefficients of the N offsets, or the matrix C may be a unit diagonal matrix, for example.

In another embodiment, the first information sent by the terminal device to the LMF device may include N offsets and statistics of the N offsets.

Optionally, in the foregoing embodiments, the first information may further indicate an absolute position of the terminal device, and/or the first information may further indicate a positioning manner adopted by the terminal device to obtain the absolute position of the terminal device.

And S202, the LMF device sends second information to the terminal device. Accordingly, the terminal device receives the second information from the LMF device. The second information indicates a positioning integrity monitoring result of the terminal device.

After receiving the first information from the terminal device, the LMF device monitors the positioning integrity of the terminal device according to the first information, and sends second information indicating the positioning integrity monitoring result of the terminal device to the terminal device in S201.

Optionally, the second information includes first indication information, where the first indication information is used to indicate that the absolute position of the terminal device meets or does not meet the positioning integrity requirement.

For example, the first information includes statistics E of the N offsets, and the LMF device may compare the statistics E with a statistics threshold to determine that an absolute location of the terminal device meets or does not meet a positioning integrity requirement. The statistic threshold value may be determined from a chi-square distribution probability table and a false alarm rate, for example. If the statistic E is larger than the statistic threshold value, the LMF device determines that the absolute position of the terminal device does not meet the positioning integrity requirement; if the statistic E is smaller than or equal to the statistic threshold value, the LMF device determines that the absolute position of the terminal device meets the positioning integrity requirement. The second information sent by the LMF device to the terminal device comprises first indication information so as to inform the terminal device that the absolute position obtained by positioning and resolving based on M reference signals meets or does not meet the positioning integrity requirement. The probability that the terminal equipment uses the position information which does not meet the integrity requirement can be reduced, and the reliability of positioning is improved.

For another example, the first information includes N offsets, and the LMF device determines an offset vector W from the N offsets and determines a statistic E of the N offsets based on the offset vector W. The LMF device may compare the statistic E with a statistic threshold value, determine that the absolute position of the terminal device meets or does not meet the positioning integrity requirement, and notify the terminal device through the first indication information in the second information.

Optionally, the second information includes second indication information, where the second indication information is used to indicate L reference signals, and positioning performed by the terminal device based on the L reference signals meets a positioning integrity requirement. Or the second indication information is used for indicating L access network devices, and the terminal device meets the positioning integrity requirement based on positioning performed by the reference signals sent by the L access network devices. Or, the second indication information is used for indicating L deviation amounts meeting the positioning integrity requirement, positioning based on the reference signals corresponding to the L deviation amounts meets the positioning integrity requirement, and the N deviation amounts determined by the terminal device include the L deviation amounts.

Optionally, the second information includes third indication information, where the third indication information is used to indicate K reference signals, and positioning performed by the terminal device based on the K reference signals does not meet a positioning integrity requirement. Or the third indication information is used for indicating K access network devices, and the positioning of the terminal device based on the reference signals sent by the K access network devices does not meet the positioning integrity requirement. Or, the third indication information is used for indicating K deviation amounts which do not meet the positioning integrity requirement, positioning performed based on the reference signals corresponding to the K deviation amounts does not meet the positioning integrity requirement, and the N deviation amounts include the K deviation amounts.

If the LMF device determines that the absolute position of the terminal device does not meet the positioning integrity requirement, the LMF device may determine K failure signals from the R reference signals of the N access network devices based on the N offsets, or determine K failed access network devices having a failure in the N access network devices based on the N offsets. The second information sent by the LMF device may include second indication information and/or third indication information, where the second indication information is used to notify the terminal device of L non-failure signals in the N reference signals, that is, L reference signals that may be used for positioning in the N reference signals, where l=n-K. The third indication information is used for notifying the terminal equipment of K failure signals in the N reference signals, namely K reference signals which cannot be used for positioning in the N reference signals. The second indication information and the third indication information may specifically indicate the reference signal by indicating the identification information of the reference signal, or indicating the identification information of the access network device transmitting the reference signal, or indicating the identification information of the offset corresponding to the reference signal, which is not limited in the present application.

For example, the first information indicates N deviation amounts, and the LMF device selects K deviation amounts among the N deviation amounts, and calculates the fault measurement value F. Illustratively, the fault measure F may be calculated with reference to the following equation:

Wherein W is _K A K-dimensional vector composed of K deviation amounts, W _K Including K elements in W.Is a matrix S _K Inverse matrix of S _K Is based on an N-dimensional matrix S, s=i _N -G(G ^T G) ^-1 G ^T ，I _N For an N-dimensional identity matrix, the geometric matrix G can be obtained by referring to the following formula:

the elements in row i of the geometric matrix G are based on absolute position coordinates of the terminal deviceAnd the absolute position coordinates (x) of the access network device i (i is an integer greater than 0 and less than or equal to N) _i ，y _i ，z _i ) The obtained method comprises the following steps:

s as above _k In particular the matrix S and W _K And a K-dimensional matrix consisting of corresponding K rows and K columns of elements. But the present application is not limited thereto.

LMF deviceThe fault measurement value can be calculated for any K deviation values in the N deviation values, and the LMF equipment can obtainThe LMF device determines the measured value of the fault>The largest fault measurement F of the fault measurements _max Then get F _max The reference signals corresponding to the K offsets are fault signals, or the access network devices corresponding to the K offsets are fault access network devices. Alternatively, if K is unknown, the LMF device may traverse K from 1 to N, progressively acknowledging the fault signal.

For example, the LMF device determines the value of each K starting from k=1And the fault measurement value is used for removing the K reference signals corresponding to the maximum fault measurement value, positioning based on the N-K reference signals, and if the positioning result of the N-K reference signals meets the integrity requirement, finishing traversing, and determining the K reference signals as fault reference signals or sending access network equipment corresponding to the K reference signals as fault access network equipment. If the N-K reference signals do not meet the positioning integrity requirement, setting K=K+1, continuing to traverse until the positioning result of the N-K reference signals corresponding to the value of one K meets the positioning integrity requirement, and ending the traversal.

Optionally, after receiving the second information, the terminal device determines K reference signals, that is, K fault signals, of the N reference signals, or determines K fault access network devices according to the second indication information and/or the third indication information in the second information. Or the terminal equipment determines L reference signals, namely L non-fault signals, in the N reference signals according to the second indication information and/or the third indication information in the second information. The terminal device updates the absolute position of the terminal device based on the L non-fault signals. If the terminal equipment performs positioning and resolving according to the L non-fault signals and the absolute positions of the L access network equipment corresponding to the L non-fault signals to obtain the updated absolute position of the terminal equipment. The absolute position of the updated terminal equipment can meet the positioning integrity requirement, the positioning accuracy of the terminal equipment is improved, and the positioning reliability is further improved.

Optionally, the second information includes fourth indication information for indicating a success rate of positioning integrity monitoring (monitor) based on the N deviation amounts.

After determining K fault signals or K access network devices in the N reference signals, the LMF device may determine a success rate P of removing the fault signals _S The success rate P _S The success rate of determining the fault signal in the N reference signals by the LMF device is referred to, or the success rate of determining the fault access network device in the N access network devices by the LMF device is referred to. P (P) _S And may also be referred to as the accuracy of K fault signals or K faulty access network devices determined by the LMF device. The LMF device informs the terminal device of the success rate P through fourth indication information in the second information _S . Illustratively, the LMF device may determine the success rate with reference to the following equation:

accordingly, after receiving the second information including the fourth indication information, the terminal device may determine whether to perform the troubleshooting operation based on the success rate of troubleshooting. If the terminal device performs the fault clearing operation, the terminal device may determine K fault signals among the N reference signals and/or determine L non-fault signals according to the second indication information and/or the third indication information in the second information. The terminal device updates the absolute position of the terminal device based on the L non-fault signals. If the terminal device does not perform the malfunction signal removal operation, the terminal device may not use the absolute position of the terminal device determined based on the N reference signals.

Optionally, the second information is carried in broadcast signaling, multicast signaling or unicast signaling.

For example, the second information may be unicast signaling, such as a terminal device specific (dedicated) LTE positioning protocol (LTE positioning protocol, LPP) message, or the unicast signaling may be a terminal device specific message in NR positioning protocol a (NR positioning protocol annex, NRPPa). The application is not limited in this regard.

Alternatively, the second information may be carried in multicast signaling or broadcast signaling. If the second information includes second indication information, other terminal devices receiving the second information can determine K fault signals which do not meet the integrity requirement based on the second indication information, and the other terminal devices do not use the K fault signals for positioning. In order to ensure that the positioning of a plurality of terminal devices meets the integrity requirement, the signaling overhead can be reduced, and the notification efficiency can be improved.

When the second information includes a plurality of indication information (e.g., the second information includes a plurality of indication information among the first indication information, the second indication information, the third indication information, and the fourth indication information), the second information may include a plurality of IE information element information elements (information element, IEs) corresponding to different indication information. Alternatively, the plurality of indication information may be located in different IEs. Alternatively, the second information indicates multiple pieces of information in the same IE. The application is not limited in this regard.

According to the scheme, the terminal equipment performs positioning and resolving based on the reference signals from the access network equipment to obtain the absolute position of the terminal equipment, and calculates the deviation amount (such as the deviation amount between the first position information and the second position information of the first access network equipment) corresponding to the position information of the access network equipment and/or the statistic of the deviation amount corresponding to the access network equipment. The terminal device may notify the LMF device of the N deviation amounts or statistics of the N deviation amounts, so that the LMF device performs positioning integrity monitoring, and notify the terminal device of the positioning integrity of the terminal device through the second information. The terminal equipment can not use the positioning information which does not meet the positioning integrity requirement, so that the positioning of the terminal equipment meets the positioning integrity requirement, the positioning precision can be improved, and the positioning reliability is further improved.

The above describes the manner in which the terminal device provided by the embodiment of the present application receives the reference signals from the plurality of access network devices, and when the absolute position of the terminal device is obtained by performing positioning and resolving, the LMF device assists in completing the integrity monitoring. The embodiment of the application also provides a positioning integrity monitoring mode, wherein the terminal equipment sends a reference signal, a plurality of access network equipment receives the reference signal, the LMF equipment determines the absolute position of the terminal equipment and N deviation amounts and/or statistics of the N deviation amounts corresponding to the access network equipment, and informs the terminal equipment of the mode that the terminal equipment assists the LMF equipment to complete integrity monitoring.

Fig. 5 is a schematic flow chart of a communication method 500 provided by an embodiment of the present application. Fig. 5 illustrates an example of a network device as an LMF device, and it should be understood that the network device may also be other devices with a location management function in a network, such as an access network device or a server, which is not limited in this disclosure. One or more of the LMF device, the terminal device, or the access network device as shown in fig. 5 may also be replaced with a chip, module, etc. for performing the method.

S501, the terminal device transmits a reference signal. Accordingly, reference signals from the terminal device are received by M access network devices, including access network device i.

S502, M access network devices send third information to the LMF device. Accordingly, the LMF device receives the third information from the M access network devices.

In one embodiment, each of the M access network devices determines a positioning measurement based on the received reference signal. The M access network devices send the location measurement values to the LMF device. The third information sent by the access network device to the LMF device includes the positioning measurement value. The positioning method adopted for the LMF equipment is different, and the positioning measurement value is different.

For example, if the positioning mode adopted by the LMF device is the TOA mode or the TDOA mode, the positioning measurement value determined by the access network device may be the transmission duration of the reference signal.

For another example, if the positioning manner adopted by the LMF device is an AOA manner, the positioning measurement value may be an arrival azimuth angle and/or a zenith arrival angle of the reference signal reaching the access network device. Alternatively, if the positioning mode adopted by the LMF device is an AOD mode, the positioning measurement value may be an azimuth angle of departure and/or an zenith angle of departure of the reference signal from the terminal device.

For another example, if the positioning mode adopted by the LMF device is RTT, the access network device sends a reference signal to the terminal device before receiving the reference signal, the terminal device sends the reference signal to the access network device after receiving the reference signal of the access network device, the access network device determines a time interval 1 between sending the reference signal and receiving the reference signal, and obtains a time interval 2 between receiving the reference signal and sending the reference signal from the terminal device, where the positioning measurement value includes the time interval 1 and the time interval 2. Alternatively, the access network device determines the round trip transmission delay of the reference signal based on the difference between time interval 1 and time interval 2, the positioning measurement comprising the round trip transmission delay.

For another example, if the LMF device employs positioning methods that may include AOA positioning methods and RTT positioning methods, the positioning measurements may include azimuth and/or zenith angle of arrival and time interval 1 and time interval 2. Or, the azimuth angle of arrival and/or zenith angle of arrival, and the round trip transmission delay of the reference signal.

In another embodiment, if the positioning manner adopted by the LMF device may include one or more of a TOA manner, an AOA positioning manner, and an RTT positioning manner, the access network device may determine the first location information based on the reference signal, where the third information sent by the access network device to the LMF device includes the first location information. The specific embodiment of determining the first location information by the access network device may refer to the embodiment of determining the first location information by the terminal device in the foregoing, which is not described herein for brevity.

S503, the LMF device determines N deviation amounts according to the third information.

The LMF device may determine first location information corresponding to the N access network devices according to the third information, and the LMF device may determine second location information corresponding to the N access network devices according to the absolute locations of the M access network devices and the absolute locations of the terminal device, and determine, based on the first location information and the second location information corresponding to each access network device in the N access network devices, a deviation amount corresponding to each access network device, to obtain N deviation amounts.

The manner in which the specific LMF device determines the N offset amounts may refer to the manner in which the terminal device determines the N offset amounts, which is not described herein for brevity.

And S504, the LMF device sends fourth information to the terminal device. Accordingly, the terminal device receives the fourth information from the LMF device.

The fourth information indicates N of the deviation amounts and/or statistics indicative of the N deviation amounts, the N deviation amounts comprising a first deviation amount, the first deviation amount being a difference between first location information determined from a reference signal and second location information determined from an absolute location of the terminal device and an absolute location of the at least one access network device.

And after receiving the fourth information, the terminal equipment monitors the positioning integrity of the LMF equipment according to the fourth information to obtain a positioning integrity detection result.

Optionally, the fourth information further indicates an absolute position of the terminal device and/or a positioning mode adopted by the LMF device.

S505, the terminal equipment sends fifth information to the LMF equipment, and accordingly, the LMF equipment receives the fifth information from the terminal equipment. The fifth information indicates a positioning integrity monitoring result.

And the LMF equipment acquires a positioning integrity monitoring result according to the fifth information. The fifth information is used to indicate one or more of the following:

the absolute positions of the terminal equipment determined based on the reference signals received by the M access network equipment meet or not meet the positioning integrity requirement;

reference signals received by L access network devices, or L deviation amounts. The LMF device performs positioning based on L reference signals or reference signals corresponding to L deviation values received by the L access network devices to meet the positioning integrity requirement;

reference signals received by K access network devices, or K deviation amounts. The LMF equipment performs positioning based on K reference signals or reference signals corresponding to K deviation values received by the K access network equipment, and positioning integrity requirements are not met;

the LMF device monitors success rate of positioning integrity based on the N offsets.

The manner in which the specific terminal device determines the fifth information (e.g., one or more of the absolute location of the terminal device meets or does not meet the positioning integrity requirement, the L non-faulty reference signals, the L non-faulty access network devices, the K faulty reference signals, the K faulty access network devices, or the success rate of positioning integrity monitoring) may refer to the manner in which the LMF device determines the second information, which is not described herein for brevity.

After the LMF device receives the fifth information, L non-fault access network devices can be determined, and positioning and resolving are performed according to L non-fault signals of the L non-fault access network devices and the absolute positions of the L access network devices to obtain the updated absolute positions of the terminal devices. The absolute position of the updated terminal equipment can meet the positioning integrity requirement, the positioning accuracy of the terminal equipment is improved, and the positioning reliability is further improved.

According to the scheme, the probability that the LMF equipment uses the positioning information which does not meet the positioning integrity requirement can be reduced, the positioning accuracy can be improved, and the positioning reliability is further improved.

The method provided by the application is described in detail above with reference to the accompanying drawings. The following figures illustrate the communication device and the communication apparatus provided by the present application. In order to implement the functions in the method provided by the application, each network element may include a hardware structure and/or a software module, and the functions are implemented in a form of a hardware structure, a software module, or a hardware structure plus a software module. Some of the functions described above are performed in a hardware configuration, a software module, or a combination of hardware and software modules, depending on the specific application of the solution and design constraints.

Fig. 6 is a schematic block diagram of a communication device provided by the present application. As shown in fig. 6, the communication apparatus 600 may include a transceiving unit 620 and a processing unit 610. The communication apparatus 600 may be configured in a communication device (e.g., a terminal device or a network device), for example, the communication apparatus 600 may be a chip configured in the communication device. But the present application is not limited thereto.

The communication apparatus 600 may include means for performing a method performed by a terminal device or an LMF device in the communication method 200 shown in fig. 2. Further, each unit in the communication device 600 and the other operations and/or functions described above are respectively for implementing the corresponding flow of the communication method 200 shown in fig. 2.

In one embodiment, the communication apparatus 600 corresponds to the terminal device in the communication method 200 shown in fig. 2, and the transceiver unit 620 is configured to send first information to the network device, where the first information indicates N deviation amounts and/or statistics indicating the N deviation amounts, where N is a positive integer, the N deviation amounts include a first deviation amount, and the first deviation amount is a difference between first location information and second location information, where the first location information is determined according to a reference signal, and the second location information is determined according to an absolute location of the terminal device and an absolute location of at least one access network device. The transceiver unit 620 is further configured to receive second information from the network device, where the second information indicates a positioning integrity monitoring result of the terminal device. Optionally, the processing unit 610 is configured to determine an integrity monitoring result of the terminal device according to the second information.

Optionally, the transceiver unit 620 is further configured to receive R reference signals from M access network devices, where the M access network devices include the at least one access network device, where M is a positive integer, and R is an integer greater than or equal to M. The processing unit 610 is further configured to determine an absolute position of the terminal device according to the M reference signals.

Optionally, the processing unit 610 is further configured to: and determining L reference signals according to the second indication information and/or the third indication information in the second information, and updating the absolute position of the terminal equipment according to the L reference signals.

In another embodiment, the communication apparatus 600 corresponds to the LMF device in the communication method 200 shown in fig. 2, and the transceiver unit 620 is configured to receive first information from a terminal device, where the first information indicates N deviation amounts and/or indicates statistics of the N deviation amounts, where N is a positive integer, the N deviation amounts include a first deviation amount, and the first deviation amount is a difference between first location information and second location information, where the first location information is determined according to a reference signal, and the second location information is determined according to an absolute location of the terminal device and an absolute location of at least one access network device. The transceiver unit 620 is further configured to send second information to the terminal device, where the second information indicates a positioning integrity monitoring result of the terminal device. Optionally, the processing unit 610 is further configured to perform positioning integrity detection according to the first information, so as to obtain a positioning integrity monitoring result of the terminal device.

The communication apparatus 600 may include means for performing a method performed by a terminal device or an LMF device in the communication method 500 shown in fig. 5. Each unit in the communication device 600 and the other operations and/or functions described above are respectively for implementing the corresponding flow of the communication method 500 shown in fig. 5.

In one embodiment, the communication apparatus 600 corresponds to the terminal device in the communication method 500 shown in fig. 5. The transceiver 620 is configured to send a reference signal; the transceiver unit is further configured to receive fourth information from the network device, the fourth information indicating N offset amounts and/or statistics indicating the N offset amounts, the N offset amounts including a first offset amount, the first offset amount being a difference between first location information determined from the reference signal and second location information determined from an absolute location of the terminal device and an absolute location of the at least one access network device. The transceiver unit 620 is further configured to send fifth information to the network device, where the fifth information indicates the positioning integrity monitoring result. Optionally, the processing unit 610 is configured to perform positioning integrity monitoring according to the fourth information, so as to obtain a positioning integrity monitoring result.

In another embodiment, the communication apparatus 600 corresponds to the LMF device in the communication method 500 shown in fig. 5. The transceiver 620 is configured to send fourth information to the terminal device, where the fourth information indicates N offset amounts and/or statistics indicating the N offset amounts, and the N offset amounts include a first offset amount, where the first offset amount is a difference between first location information and second location information, where the first location information is determined according to a reference signal, and the second location information is determined according to an absolute location of the terminal device and an absolute location of at least one access network device. The transceiver unit 620 is further configured to receive fifth information from the terminal device, where the fifth information indicates a positioning integrity monitoring result. Optionally, the processing unit 610 is configured to determine a positioning integrity monitoring result according to the second information.

Optionally, the transceiver unit 620 is further configured to receive third information from the access network device, where the third information is used to indicate the first location information, or the third information is used to indicate a positioning measurement value of the terminal device, where the positioning measurement value is determined based on a reference signal from the terminal device.

Optionally, the processing unit 610 is further configured to determine the N deviation amounts and/or statistics of the N deviation amounts according to the third information.

In yet another embodiment, the communication apparatus 600 corresponds to the access network device in the communication method 500 shown in fig. 5. The transceiver unit 620 is configured to receive a reference signal from a terminal device. The transceiver unit 620 is further configured to send third information to the network device, where the third information is used to indicate the first location information, or the third information is used to indicate a location measurement value of the terminal device, where the location measurement value is determined based on a reference signal from the terminal device. Optionally, the processing unit 610 is configured to determine the third information according to a reference signal from the terminal device.

It should be understood that when the communication apparatus 600 is a chip configured in (or used in) a communication device (e.g., a terminal device, an LMF device), the transceiver unit 620 in the communication apparatus 600 may be an input/output interface or a circuit of the chip, and the processing unit 610 in the communication apparatus 600 may be a processor in the chip.

Optionally, the communication device 600 may further include a storage unit 630, where the storage unit 630 may be used to store instructions or data, and the processing unit 610 may execute the instructions or data stored in the storage unit, so that the communication device performs a corresponding operation.

In one possible design, the communication device 600 may correspond to the communication device 700 shown in fig. 7, and the transceiver unit 620 in the communication device 600 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, may correspond to the transceiver 730 in the communication device 700 shown in fig. 7. The processing unit 610 in the communication device 600 may be implemented by at least one processor, for example, may correspond to the processor 710 in the communication device 700 shown in fig. 7. The processing unit 610 in the communication device 600 may also be implemented by at least one logic circuit. The storage unit 630 in the communication device 600 may correspond to the memory 720 in the communication device 700 shown in fig. 7.

It should also be understood that the specific process of each unit performing the corresponding steps is described in detail in the above method, and is not described herein for brevity.

Fig. 7 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application. As shown in fig. 7, the communication device 700 includes one or more processors 710. The processor 710 may be used for internal processing of the device to implement certain control processing functions. Optionally, the processor 710 includes instructions 711. Alternatively, the processor 710 may store data.

Optionally, the communication device 700 includes one or more memories 720 to store instructions 721. Optionally, the memory 720 may also store data. The processor and the memory may be provided separately or may be integrated.

Optionally, the communication device 700 may also include a transceiver 730 and/or an antenna 740. Where transceiver 700 may be used to send information to or receive information from other devices. The transceiver 730 may be referred to as a transceiver, transceiver circuitry, input-output interface, etc. for implementing the transceiver function of the communication device 700 via the antenna 740. Optionally, transceiver 730 includes a transmitter (transmitter) and a receiver (receiver).

In one embodiment, the communication device 700 may be applied to the system shown in fig. 1, the communication device 700 may correspond to a terminal apparatus, and the communication device 700 may be the terminal apparatus itself. Alternatively, the communication device 700 is configured in a terminal device, for example, the communication device 700 may be a chip or a module configured in the terminal device. The communication apparatus 700 may perform the operations of the terminal device in the above-described method embodiment.

In another embodiment, the communication apparatus 700 may be applied to the system shown in fig. 1, the communication apparatus 700 may correspond to a network device, such as an LMF device, and the communication apparatus 700 may be the LMF device itself. Alternatively, the communication device 700 may be configured on an LMF device, for example, the communication device 700 may be a chip or a module configured on the LMF device. The communication apparatus 700 may perform the operations of the LMF device in the above-described method embodiments.

In the present application, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, where the methods, steps, and logic blocks of the present application may be implemented or performed. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method in connection with the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

In the present application, the memory may be a nonvolatile memory such as a hard disk (HDD) or a Solid State Drive (SSD), or may be a volatile memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory of the present application may also be circuitry or any other device capable of performing the function of storing program instructions and/or data.

The application also provides a processing device, which comprises a processor and a (communication) interface; the processor is configured to perform the method provided by the method embodiment.

It should be understood that the processing means described above may be one or more chips. For example, the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated chip (application specific integrated circuit, ASIC), a system on chip (SoC), a central processing unit (central processor unit, CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), a microcontroller (micro controller unit, MCU), a programmable controller (programmable logic device, PLD) or other integrated chip.

The present application also provides a computer readable storage medium storing a computer program or instructions which, when executed, implement the method performed by the network device or the terminal device in the foregoing method embodiments. Thus, the functions described in the above embodiments may be implemented in the form of software functional units and sold or used as independent products. Based on such understanding, the technical solution of the present application may be embodied in essence or contributing part or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, or other various media capable of storing program codes.

According to the method provided by the application, the application also provides a computer program product comprising: computer program code which, when executed by one or more processors, causes an apparatus comprising the processor to perform the method shown in fig. 2, 5.

The technical scheme provided by the application can be realized in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, 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 a computer, the processes or functions in accordance with the present application are produced in whole or in part. The computer instructions may be stored in or transmitted from one computer-readable storage medium, which can be any available medium that can be accessed by a computer or a data storage device, such as a server, data center, etc., that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital video disc (digital video disc, DVD)), or a semiconductor medium, etc.

According to the method provided by the application, the application also provides a system which comprises one or more terminal devices. The system may further comprise one or more of the LMF devices described above. Optionally, the system may further comprise a plurality of access network devices as described above.

In the several provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the above-described arrangements are merely illustrative, e.g., the division of the elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

the terminal device sends first information to the network device, wherein the first information indicates N deviation amounts and/or indicates statistics of the N deviation amounts, N is a positive integer, the N deviation amounts comprise first deviation amounts, the first deviation amounts are differences between first position information and second position information, the first position information is determined according to reference signals, and the second position information is determined according to absolute positions of the terminal device and absolute positions of at least one access network device;

the terminal device receives second information from the network device, wherein the second information indicates a positioning integrity monitoring result of the terminal device.

2. The method of claim 1, wherein the at least one access network device comprises a first access network device and a reference access network device, wherein the reference signal comprises a reference signal transmitted by the first access network device and a reference signal transmitted by the reference access network device,

the first position information is determined based on a signal arrival time difference and an optical speed, wherein the signal arrival time difference is a difference value between an arrival time of a reference signal sent by the first access network device and an arrival time of a reference signal sent by the reference access network device;

The second location information is a difference between a first euclidean distance and a second euclidean distance, the first euclidean distance is a euclidean distance between an absolute location of the terminal device and an absolute location of the first access network device, and the second euclidean distance is a euclidean distance between an absolute location of the terminal device and an absolute location of the reference access network device.

3. The method according to claim 1, wherein the at least one access network device comprises a first access network device, wherein the reference signal comprises a reference signal transmitted by the first access network device and/or a reference signal transmitted by the terminal device,

the first position information is the relative distance between the first access network equipment and the terminal equipment, which is determined according to the reference signal;

the second location information is a euclidean distance of an absolute location of the terminal device from an absolute location of the first access network device.

4. The method of claim 1, wherein the at least one access network device comprises a first access network device, wherein the reference signal is a reference signal transmitted by the first access network device,

the first position information comprises an azimuth angle and/or a pitch angle of the terminal equipment relative to the first access network equipment, which are determined according to a reference signal sent by the first access network equipment;

The second location information is an azimuth and/or a pitch angle of the terminal device relative to the first access network device, which is determined according to the absolute location of the terminal device and the absolute location of the first access network device.

5. The method according to any one of claims 1 to 4, further comprising:

the terminal equipment receives R reference signals from M access network equipment, wherein the M access network equipment comprises at least one access network equipment, M is a positive integer, and R is an integer greater than or equal to M;

and the terminal equipment determines the absolute position of the terminal equipment according to the M reference signals.

6. Method according to any of claims 1 to 5, characterized in that the first information also indicates the absolute position and/or positioning mode of the terminal device.

7. The method of claim 6, wherein the positioning method is a time of arrival TOA positioning method, a time difference of arrival TDOA positioning method, an angle of arrival AOA positioning method, an angle of departure AOD positioning method, and/or a round trip time RTT positioning method.

8. The method of any one of claims 1 to 7, wherein the second information comprises one or more of the following indicating information:

the second indication information is used for indicating L reference signals, and the positioning of the terminal equipment based on the L reference signals meets the positioning integrity requirement; or the terminal equipment is used for indicating L access network equipment, and positioning performed by the terminal equipment based on reference signals sent by the L access network equipment meets the positioning integrity requirement; or the method is used for indicating L deviation values meeting the positioning integrity requirement, positioning based on the reference signals corresponding to the L deviation values meets the positioning integrity requirement, and the N deviation values comprise the L deviation values;

the third indication information is used for indicating K reference signals, and the positioning of the terminal equipment based on the K reference signals does not meet the positioning integrity requirement; or the terminal equipment is used for indicating K access network equipment, and the positioning performed by the terminal equipment based on the reference signals sent by the K access network equipment does not meet the positioning integrity requirement; or K deviation amounts for indicating that the positioning integrity requirement is not satisfied, positioning performed based on the reference signals corresponding to the K deviation amounts does not satisfy the positioning integrity requirement, where the N deviation amounts include the K deviation amounts;

And fourth indication information for indicating success rate of positioning integrity monitoring based on the N deviation amounts.

9. The method of claim 8, wherein the method further comprises:

the terminal equipment determines L reference signals according to the second indication information and/or the third indication information in the second information;

and the terminal equipment updates the absolute position of the terminal equipment according to the L reference signals.

10. The method according to any of claims 1 to 9, wherein the second information is carried in broadcast signaling, multicast signaling or unicast signaling.

11. A method of communication, comprising:

the network device receives first information from the terminal device, wherein the first information indicates N deviation amounts and/or statistics indicating the N deviation amounts, wherein N is a positive integer, the N deviation amounts comprise first deviation amounts, the first deviation amounts are differences between first position information and second position information, the first position information is determined according to a reference signal, and the second position information is determined according to an absolute position of the terminal device and an absolute position of at least one access network device;

The network device sends second information to the terminal device, wherein the second information indicates a positioning integrity monitoring result of the terminal device.

12. The method of claim 11, wherein the at least one access network device comprises a first access network device and a reference access network device, wherein the reference signal comprises a reference signal transmitted by the first access network device and a reference signal transmitted by the reference access network device,

13. The method according to claim 11, wherein the at least one access network device comprises a first access network device, wherein the reference signal comprises a reference signal transmitted by the first access network device and/or a reference signal transmitted by the terminal device,

14. The method of claim 11, wherein the at least one access network device comprises a first access network device, wherein the reference signal is a reference signal transmitted by the first access network device,

15. The method according to any of claims 11 to 14, characterized in that the first information also indicates an absolute position and/or a positioning mode of the terminal device.

16. The method according to claim 15, wherein the positioning means is a time of arrival TOA positioning means, a time difference of arrival TDOA positioning means, an angle of arrival AOA positioning means, an angle of departure AOD positioning means and/or a round trip time RTT positioning means.

17. The method according to any one of claims 11 to 16, further comprising:

and the network equipment determines a positioning integrity monitoring result of the terminal equipment according to the first information.

18. The method of any one of claims 11 to 17, wherein the second information comprises one or more of the following indicating information:

19. The method according to any of claims 11 to 18, wherein the second information is carried in broadcast signaling, multicast signaling or unicast signaling.

20. A communication device, comprising:

a unit or module for performing the method according to any one of claims 1 to 10, or,

a unit or module for performing the method of any one of claims 11 to 19.

21. A communication device comprising a processor and a memory for storing a computer program or instructions, the processor for executing the computer program or instructions in the memory such that the method of any one of claims 1 to 10 or the method of any one of claims 11 to 19 is performed.

22. A computer readable storage medium storing instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 10 or to perform the method of any one of claims 11 to 19.

23. A computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 10 or to perform the method of any one of claims 11 to 19.