CN117014799A

CN117014799A - Communication method and device

Info

Publication number: CN117014799A
Application number: CN202210476541.6A
Authority: CN
Inventors: 刘梦婷; 李建锋
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

Abstract

The application provides a communication method and equipment. The method can decouple the calculation position information and the calculation positioning integrity result to reduce the calculation complexity of the position calculation unit, ensure the accuracy and timeliness of the positioning integrity result, and finally realize the effect of optimizing the positioning integrity result. In summary, the method can implement a new positioning integrity calculation mechanism.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

Positioning integrity (positioning integrity), which may also be referred to as positioning integrity, the concept originally originated in the aeronautical field. The global satellite navigation system (global navigation satellite system, GNSS) represented by the global positioning system (global positioning system, GPS) has the characteristics of real-time performance, high precision and all weather, can meet basic positioning requirements, but is applied to the actual environment, and the complex geographic environment such as buildings, tunnels, trees, signal shielding caused by the complex geographic environment, multipath effect and the like can cause serious reduction of positioning performance, and in addition, the satellite can also cause serious influence on the positioning performance when the satellite breaks down, so that an effective positioning integrity monitoring means is adopted to evaluate the uncertainty level of the positioning error of the current satellite, an alarm is provided under the condition of exceeding a preset limit value, and the safety risk caused by the satellite fault and other factors can be effectively isolated.

In the third generation partnership project (3rd Generation Partnership Project,3GPP) standard study, the ability to safely navigate means that a user must highly trust the position estimation results of a positioning system, positioning integrity can be used as a measure of the reliability of the position estimation results, and the definition of positioning integrity mainly includes two aspects:

1) Degree of trust: a degree of trust in the correctness of the location information provided by the positioning system;

2) Alarm capability: and when the positioning system does not meet the expected operation condition, timely and effective alarm can be provided for the terminal equipment.

In the prior art, position calculation or estimation already has a mature mechanism, however, the lack of a corresponding mechanism about integrity calculation, especially in ground positioning scenarios, such as cellular positioning, sensor positioning, bluetooth positioning, etc. Thus, current positioning integrity mechanisms do not meet the current positioning requirements.

Disclosure of Invention

The application provides a communication method and equipment for realizing a new positioning integrity calculation mechanism.

In a first aspect, an embodiment of the present application provides a communication method, where the method may be applied to a terminal device. The application scene of the method is that a downlink positioning method or an uplink and downlink combined positioning method is adopted for a positioning network architecture. The method comprises the following steps:

Determining position information of the terminal equipment, wherein the position information is obtained by the terminal equipment according to a measurement result of at least one reference signal, and the at least one reference signal is from at least one network equipment; transmitting first information, wherein the first information is used for determining a positioning integrity result of the terminal equipment, and the first information comprises at least one of the following items: the measurement result and the position information.

In the method, the terminal device may perform a positioning calculation operation as a position calculation unit, and the other devices may perform an operation of calculating a positioning integrity result as a positioning integrity calculation unit. According to the method, the two operations of calculating the position information and calculating the positioning integrity result can be decoupled, so that the calculation complexity of the terminal equipment is reduced, meanwhile, the accuracy and timeliness of the positioning integrity result are guaranteed, and finally, the effect of optimizing the positioning integrity result is achieved.

In one possible design, the first information further includes at least one of the following:

error information of the measurement result, error event information of the measurement result, residual error of the position information, error information of the position information, distribution geometry information of the at least one network device, validity time of the first information.

In one possible design, the error information of the measurement result includes at least one of:

the resolution of the measurement error, the 3sigma value of the measurement error, the variance of the measurement error, the standard deviation of the measurement error, the covariance of the measurement error, the upper bound of the measurement error, the lower bound of the measurement error, the mean value of the measurement error, the range of the measurement error and the value of the measurement error.

In one possible design, the error event information for the measurement result includes at least one of:

error event of the measurement result, occurrence probability of error event of the measurement result.

In one possible design, the positioning integrity result comprises at least one of:

protection level PL, integrity event, alarm boundary AL, alarm time TTA, integrity risk TIR, system availability IA.

In one possible design, the terminal device may also receive a first message, where the first message is used to request the first information.

In one possible design, the measurement result of the at least one reference signal is a measurement result obtained by the terminal device measuring the at least one reference signal from the at least one network device.

In a second aspect, an embodiment of the present application provides a communication method, where the method may be applied to a network device. The application scene of the method is that a downlink positioning method or an uplink and downlink combined positioning method is adopted for a positioning network architecture. The method may comprise the steps of:

receiving first information from a terminal device; the first information comprises at least one of the following items: measuring results of at least one reference signal and position information of the terminal equipment; wherein the at least one reference signal is from at least one network device; and determining a positioning integrity result of the terminal equipment according to the first information.

In the method, the terminal device may perform a positioning calculation operation as a position calculation unit, and the network device may perform an operation of calculating a positioning integrity result as a positioning integrity calculation unit. According to the method, the two operations of calculating the position information and calculating the positioning integrity result can be decoupled, so that the calculation complexity of the terminal equipment is reduced, meanwhile, the accuracy and timeliness of the positioning integrity result are guaranteed, and finally, the effect of optimizing the positioning integrity result is achieved.

In one possible design, the network device may also receive second information from the at least one network device, the second information being used to determine a positioning integrity result of the terminal device.

In one possible design, the network device may determine a positioning integrity result of the terminal device according to the first information and/or the second information.

In one possible design, the second information includes at least one of the following:

abnormal event information of the at least one network device, distribution geometry information of the at least one network device, validity time of the second information.

In one possible design, the anomaly event information for the at least one network device includes at least one of:

the probability of one or more network devices being abnormal within a set time, and the duration of one or more network devices being abnormal within the set time.

In one possible design, the network device may further send a second message to the at least one network device, the second message being for requesting the second information.

In one possible design, the network device may also send a first message to the terminal device, the first message being used to request the first information.

In a third aspect, an embodiment of the present application provides a communication method, where the method may be applied to a terminal device. The application scene of the method is that a downlink positioning method or an uplink and downlink combined positioning method is adopted for a positioning network architecture. The method may comprise the steps of:

transmitting first information; the first information is used for determining the position information of the terminal equipment, wherein the first information comprises the measurement result of at least one reference signal, and the at least one reference signal is from at least one network equipment; receiving second information, wherein the second information is used for determining a positioning integrity result of the terminal equipment; and determining a positioning integrity result of the terminal equipment according to at least one of the second information and the measurement result.

In the method, other devices can be used as a computing unit to perform positioning computing operation, and terminal devices can be used as a positioning integrity computing unit to perform operation of computing positioning integrity results. The method can decouple the two operations of calculating the position information and calculating the positioning integrity result to reduce the calculation complexity of the position calculation unit, ensure the accuracy and timeliness of the positioning integrity result, and finally realize the effect of optimizing the positioning integrity result. In addition, through the method, the terminal equipment can execute the operation of calculating the positioning integrity result, so that the terminal equipment does not need to acquire the positioning integrity result from other equipment, the time delay of the terminal equipment for acquiring the positioning integrity result is effectively reduced, and the positioning performance of the terminal equipment is improved. In addition, the terminal equipment can directly utilize the information such as the measurement result obtained locally to calculate the positioning integrity result without reporting the information to the network side, so that the signaling overhead can be reduced.

In one possible design, the second information includes at least one of:

the position information of the terminal equipment, the residual error of the position information, the error information of the position information and the effective time of the second information.

In one possible design, the second information includes at least one of:

abnormal event information of the at least one network device, distribution geometry information of the at least one network device.

In one possible design, the terminal device may also receive third information, where the third information is used to determine a positioning integrity result of the terminal device; wherein the third information includes at least one of the following:

abnormal event information of the at least one network device, distribution geometry information of the at least one network device, validity time of the third information.

In one possible design, the terminal device may determine a positioning integrity result of the terminal device according to at least one of the second information, the third information, and the measurement result.

probability of one or more network devices being abnormal within a set time, duration of the one or more network devices being abnormal within the set time.

In one possible design, the terminal device may also send a second message requesting the second information.

In one possible design, the terminal device may further send a third message, where the third message is used to request the third information.

In a fourth aspect, an embodiment of the present application provides a communication method, where the method may be applied to a network device. The application scene of the method is that a downlink positioning method or an uplink and downlink combined positioning method is adopted for a positioning network architecture. The method may comprise the steps of:

receiving first information from a terminal device; wherein the first information includes a measurement result of at least one reference signal, and the at least one reference signal is from at least one network device; determining the position information of the terminal equipment according to the first information; and sending second information to the terminal equipment, wherein the second information is used for determining a positioning integrity result of the terminal equipment.

In the method, the network device can be used as a computing unit to perform positioning computing operation, and the terminal device can be used as a positioning integrity computing unit to perform operation of computing positioning integrity result. The method can decouple the two operations of calculating the position information and calculating the positioning integrity result to reduce the calculation complexity of the position calculation unit, ensure the accuracy and timeliness of the positioning integrity result, and finally realize the effect of optimizing the positioning integrity result. In addition, through the method, the terminal equipment can execute the operation of calculating the positioning integrity result, so that the terminal equipment does not need to acquire the positioning integrity result from other equipment, the time delay of the terminal equipment for acquiring the positioning integrity result is effectively reduced, and the positioning performance of the terminal equipment is improved. In addition, the terminal equipment can directly utilize the information such as the measurement result obtained locally to calculate the positioning integrity result without reporting the information to the network side, so that the signaling overhead can be reduced.

In one possible design, the network device may also receive fourth information from the at least one network device, the fourth information being used to determine a positioning integrity result of the terminal device.

In one possible design, the second information includes part or all of the fourth information.

In one possible design, the fourth information includes at least one of the following:

In one possible design, the network device may further send a fourth message to the at least one network device, the fourth message being for requesting the fourth information.

In one possible design, the network device may also receive a second message from the terminal device, the second message being used to request the second information.

In a fifth aspect, an embodiment of the present application provides a communication method, which may be applied to a terminal device. The application scene of the method adopts an uplink positioning method or an uplink and downlink combined positioning method for a positioning network architecture. The method specifically comprises the following steps:

receiving first information; and determining a positioning integrity result of the terminal equipment according to the first information.

In the method, other devices can be used as a position calculating unit to perform a positioning calculating operation, and terminal devices can be used as a positioning integrity calculating unit to perform an operation of calculating a positioning integrity result. The method can decouple the two operations of calculating the position information and calculating the positioning integrity result to reduce the calculation complexity of the position calculation unit, ensure the accuracy and timeliness of the positioning integrity result, and finally realize the effect of optimizing the positioning integrity result. In addition, the method can transfer the operation of calculating the positioning integrity result to the terminal equipment side, so that the terminal equipment does not need to acquire the positioning integrity result from other equipment, the time delay of the terminal equipment for acquiring the positioning integrity result is effectively reduced, and the positioning performance of the terminal equipment is improved. In addition, the terminal equipment can directly utilize the information such as the measurement result obtained locally to calculate the positioning integrity result without reporting the information to the network side, so that the signaling overhead can be reduced.

In one possible design, the first information includes at least one of:

the method comprises the steps of position information of the terminal equipment, residual error of the position information, error information of the position information and effective time of the first information.

In one possible design, the first information includes at least one of:

a measurement result of at least one reference signal, error information of the measurement result, error event information of the measurement result, abnormal event information of the at least one network device, distribution geometry information of the at least one network device;

wherein the at least one reference signal is sent by the terminal device.

In one possible design, the terminal device may also receive second information for determining a positioning integrity result of the terminal device; wherein the second information includes at least one of the following: a measurement of at least one reference signal; error information of the measurement result, error event information of the measurement result, abnormal event information of the at least one network device, distribution geometry information of the at least one network device, and validity time of the second information; wherein the at least one reference signal is sent by the terminal device.

In one possible design, the terminal device may determine a positioning integrity result of the terminal device according to at least one of the first information and the second information.

probability of abnormality of one or more network devices within a set time, duration of abnormality of one or more network devices within the set time; the probability of abnormality of the at least one network device in the set time and the duration of abnormality of the at least one network device in the set time.

In one possible design, the terminal device may also send a first message requesting the first information.

In one possible design, the measurement result of the at least one reference signal is a measurement result obtained by the at least one network device measuring the at least one reference signal from the terminal device.

In a sixth aspect, an embodiment of the present application provides a communication method, where the method may be applied to a network device. The application scene of the method adopts an uplink positioning method or an uplink and downlink combined positioning method for a positioning network architecture. The method specifically comprises the following steps:

receiving third information from at least one network device; wherein the third information includes a measurement result of at least one reference signal, and the at least one reference signal is sent by the terminal device; determining the position information of the terminal equipment according to the third information; and sending first information, wherein the first information is used for determining a positioning integrity result of the terminal equipment.

In the method, the network device can be used as a position calculation unit to perform a positioning calculation operation, and other devices can be used as a positioning integrity calculation unit to perform an operation of calculating a positioning integrity result. The method can decouple the two operations of calculating the position information and calculating the positioning integrity result to reduce the calculation complexity of the position calculation unit, ensure the accuracy and timeliness of the positioning integrity result, and finally realize the effect of optimizing the positioning integrity result.

In one possible design, the first information includes at least one of:

In one possible design, part or all of the fourth information is also included in the first information.

The measurement result, error information of the measurement result, error event information of the measurement result, abnormal event information of the at least one network device, distribution geometry information of the at least one network device, and validity time of the fourth information.

In one possible design, the network device is further configured to send a fourth message to the at least one network device, the fourth message being configured to request the fourth information.

In one possible design, the network device is further configured to receive a first message, the first message being configured to request the first information.

In a seventh aspect, embodiments of the present application provide a communication apparatus including means for performing each of the above first to sixth aspects.

In an eighth aspect, an embodiment of the present application provides a communication device comprising at least one processing element and at least one storage element, wherein the at least one storage element is for storing a program and data, and the at least one processing element is for performing the method provided in the above first to sixth aspects of the present application.

In a ninth aspect, embodiments of the present application also provide a computer program product comprising program instructions which, when run on a computer, cause the computer to perform the method provided in any of the above aspects.

In a tenth aspect, embodiments of the present application also provide a computer-readable storage medium having a computer program stored therein, which when executed by a computer, causes the computer to perform the method provided in any of the above aspects.

In an eleventh aspect, an embodiment of the present application further provides a chip, where the chip is configured to read a computer program stored in a memory, and perform the method provided in any one of the above aspects.

In a twelfth aspect, an embodiment of the present application further provides a chip system, where the chip system includes a processor, and is configured to support a computer device to implement the method provided in any one of the above aspects. In one possible design, the chip system further includes a memory for storing programs and data necessary for the computer device. The chip system may be formed of a chip or may include a chip and other discrete devices.

Drawings

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

FIG. 2A is a flow chart of a communication method according to an embodiment of the present application;

fig. 2B is a flowchart of a communication method according to an embodiment of the present application;

FIG. 3A is a flow chart of a communication method according to an embodiment of the present application;

FIG. 3B is a flow chart of a communication method according to an embodiment of the present application;

FIG. 4 is a flow chart of a communication method according to an embodiment of the present application;

fig. 5 is a block diagram of a communication device according to an embodiment of the present application;

fig. 6 is a block diagram of a communication device according to an embodiment of the present application.

Detailed Description

The application provides a communication method and equipment for realizing a new positioning integrity calculation mechanism. The method and the device are based on the same technical conception, and because the principle of solving the problems by the method and the device is similar, the implementation of the device and the method can be mutually referred to, and the repetition is not repeated.

Some terms used in the present application are explained below to facilitate understanding by those skilled in the art.

1) A network device may refer broadly to a unit, device, or functional module in a network. Such as devices in the access network (e.g. base stations, TRP), devices in the core network (AMF, LMF), etc.

In one embodiment, the network device may be a device in a communication system that accesses a terminal device to a wireless network. The network device may also refer to a device that communicates with the terminal device over the air. The network device acts as a node in the radio access network, which may also be referred to as a base station, and may also be referred to as a radio access network (radio access network, RAN) node (or device), AN Access Network (AN) node (or device), or AN Access Point (AP).

Currently, examples of some network devices are: a new generation Node B (generation Node B, gNB), evolved Node B (eNB), transmission and reception point (transmission reception point, TRP), radio network controller (radio network controller, RNC), node B (Node B, NB), access Point (AP), wireless-fidelity (WiFi) AP, worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) Base Station (BS), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), or baseband unit (base band unit, BBU), micro base station (also referred to as a small station), relay (relay), macro base station of various forms, wireless-fidelity (wireless fidelity, wiFi) Access Point (AP), transmission and reception point (transmission reception point, TRP), reception Point (RP), transmission and measurement function (transmission measurement function, TMF) or transmission point (transmission point), or any other wireless access device, is not limited in this application.

The embodiment of the application does not limit the specific technology and the specific equipment form used by the network equipment. The network device may correspond to an eNB in a 4G system and to a gNB in a 5G system.

In addition, in one network structure, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node. The structure can split the protocol layers of the network equipment, the functions of part of the protocol layers are controlled in the CU in a centralized way, and the functions of the rest part or all of the protocol layers are distributed in DUs, so that the CU controls the DUs in a centralized way.

For example, PDCP layer and above protocol layer functions may be provided at the CU, and functions of protocol layers below PDCP (e.g., RLC layer and MAC layer, etc.) are provided at the DU. It should be noted that this division of protocol layers is only an example, and may be divided at other protocol layers. The radio frequency device can be remote, not placed in the DU, integrated in the DU, or partially remote and partially integrated in the DU, and the embodiment of the application is not limited in any way. In addition, in some embodiments, a Control Plane (CP) and a User Plane (UP) of the CU may be implemented separately and separated into different entities, which are a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity), respectively.

In this network architecture, the signaling generated by the CU may be transmitted to the terminal device through a DU, or the signaling generated by the terminal device may be transmitted to the CU through a DU. The DU may be passed through to the terminal device or CU directly through protocol layer encapsulation without parsing the signaling. In this network architecture, the CU is divided into network devices on the radio access network (radio access network, RAN) side, and the CU may be divided into network devices on the Core Network (CN) side, which is not limited by the present application.

2) A terminal device is a device that provides voice and/or data connectivity to a user, and is capable of accessing a network device via a wireless interface. The terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc.

For example, the terminal device may be a handheld device having a wireless connection function, various vehicle-mounted devices, a roadside unit, an internet of things terminal, an access terminal, a terminal in V2X communication, 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, a user equipment, or the like. Currently, examples of some terminal devices are: a mobile phone), a tablet, a notebook, a palm, a mobile internet device (mobile internet device, MID), a point of sale (POS), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile communication network (public land mobile network, PLMN), a wireless terminal in an industrial control (industrial control), a wireless terminal in a self driving (self driving), a wireless terminal in a teleoperation (remote medical surgery), a wireless terminal in a smart grid (smart 97grid), a wireless terminal in a transportation safety (smart city), a wireless terminal in a smart meter (smart car-in a smart car, a smart meter (smart car-in a smart system, a smart car-in a smart car, a smart meter (electronic car-in a car, a smart car-in a smart car system, etc.

3) The reference signal is a signal transmitted by the terminal device or the network device. In the present application, the reference signal may be a positioning reference signal (positioning reference signal, PRS), or other reference signal, which is not limited by the present application. Among other things, the positioning reference signal may be one or more of the following:

a) Downlink positioning reference signals (downlink positioning reference signal, DL-PRS): for downlink positioning methods and uplink and downlink joint positioning methods, also commonly referred to as PRS.

b) Uplink sounding reference signal (uplink sounding reference signal, UL-SRS): in a broad sense, the SRS includes an uplink reference signal for multiple-input multiple-output (MIMO) (i.e., MIMO-SRS in 3GPP Rel-15 and previous releases), and an uplink positioning reference signal dedicated to positioning (i.e., pos-SRS proposed by 3GPP Rel-16).

Note that: both the MIMO-SRS and pos-SRS can be used for uplink positioning method and uplink-downlink joint positioning method, and the UL-SRS can also be called uplink positioning reference signal when the MIMO-SRS and pos-SRS are used for positioning.

c) Side-uplink positioning reference signal (sidelink positioning reference signal, S-PRS): the positioning reference signal is transmitted on the side-link and is dedicated to the sidelink scenario.

Note that: the uplink reference signal may be an existing uplink reference signal (e.g. UL-SRS), or other reference signals, which are sent by a transmitting end (e.g. a terminal device, e.g. UE) and may be used for carrier phase measurement by a receiving end (e.g. a base station, e.g. a gNB). Similarly, the downlink reference signal may be a reference signal sent by a transmitting end (e.g., a base station, e.g., a gNB) and used for a receiving end (e.g., a terminal device, e.g., a UE) to perform carrier phase measurement, and may be an existing downlink reference signal (e.g., DL-SRS), or other reference signals, which is not limited in the present application.

Optionally, the downlink reference signal may include one or more of the following: channel state information measurement reference signals (channel state information reference signal, CSI-RS), demodulation reference signals (demodulation reference signal, DM-RS), phase reference signals (tracking reference signal, TRS), phase tracking reference signals (phase-tracking reference signal, PT-RS), PRS; wherein PRS is dedicated to positioning.

Optionally, the uplink reference signal may include one or more of the following: DM-RS, PT-RS, SRS, pos-SRS, where pos-SRS is dedicated to positioning, SRS can be used for positioning as well as MIMO.

4) And measuring the reference signal to obtain a measurement result. In the embodiment of the application, the measurement result is mainly used for realizing positioning of the terminal equipment, so that the measurement result can contain parameters required in any positioning algorithm. Illustratively, the measurement may include, but is not limited to, at least one of the following parameters: time of arrival (TOA), time difference of arrival (time difference of arrival, TDOA), angle of departure (angle of departure, AOD), carrier phase (carrier phase).

By way of example, the following is illustrative of measurement results for different positioning methods:

(a) Downlink time difference of arrival (downlink time difference of arrival, DL-TDOA) positioning method

The measurement results at the terminal equipment side include one or more of the following:

Latitude/Longitude/Altitude, and corresponding uncertainty or error range (Latitude/Longitude/Altitude, together with uncertainty shape).

Reference signal time difference (reference signal time difference, RSTD).

Reference signal received power (PRS-Reference Signal Received Power, PRS-RSRP) of the downlink positioning reference signal.

Timestamp information (Time stamp of the measurements) corresponding to all measurement quantities.

Timestamp information of the position estimate (Time stamp of location estimate).

Line of sight (LOS)/non-line of sight (NLOS) information (LOS/NLOS information for UE measurements) corresponding to the measurement quantity. The information may be a hard decision indication (e.g., 1 for LOS,0 for NLOS), or a soft decision indication (e.g., 0.4 for 40% probability of NLOS).

The quality (Quality for each measurement) of the measurement results or the position estimation results can be seen in particular from the error information in 5) below.

TOA。

Error information of TOA. This unification is illustrated by the error information in 5) below, which is identical to modeling of other measurements, and which is referred to in the following.

(b) Downlink departure angle (downlink angle of departure, DL-AOD) positioning method

DL-PRS receive beam index (DL-PRS receive beam index).

PRS-RSRP measurement of the first path (i.e., the first root path to the terminal device side) (The first path DL-PRS-RSRP measurement result).

LOS/NLOS information (LOS/NLOS information for UE measurements) corresponding to the measurement quantity. The information may be a hard decision indication (e.g., 1 for LOS,0 for NLOS), or a soft decision indication (e.g., 0.4 for 40% probability of NLOS).

(c) Method for Round Trip Time (Multi-Round Trip Time), multi-RTT positioning

Reception-transmission time difference (UE Rx-Tx time difference measurement) at the terminal device side.

Timing Advance (TA) offset used by UE for use by the UE.

The measurement results at the network device side include one or more of the following:

reference signal received power (SRS-Reference Signal Received Power, SRS-RSRP) of the uplink positioning reference signal SRS.

The receive-transmit time difference at the network device side (e.g., gNB Rx-Tx time difference measurement).

Uplink angle of arrival (including zenith angle, azimuth angle, and elevation angle) (UL Angle of Arrival (e.g., zenith, azimuth and elevation)).

Beam information (Beam Information of the measurement) corresponding to the measurement quantity.

LOS/NLOS information (LOS/NLOS information for gNB measurements) corresponding to the measurement quantity. The information may be a hard decision indication (e.g., 1 for LOS,0 for NLOS), or a soft decision indication (e.g., 0.4 for 40% probability of NLOS).

(d) Uplink time difference of arrival (uplink time difference of arrival, UL-TDOA) positioning method

uplink relative arrival time (Uplink Relative Time of Arrival, UL-RTOA).

The LOS/NLOS information (LOS/NLOS information for gNB measurements) for the measurement quantity may be a hard decision indication (e.g., 1 for LOS,0 for NLOS), or a soft decision indication (e.g., 0.4 for 40% probability of NLOS).

e) Uplink arrival angle (uplink angle of arrival, UL-AOA) positioning method

(f) Carrier phase (carrier phase) positioning method

The measurement results at the UE side or the network device side include one or more of the following:

carrier phase. Such as carrier phase measurements of reference signals transmitted on one or more frequency points, carrier phase measurements of reference signals transmitted on one or more carriers.

Carrier phase difference. Taking the network device as an example of a base station, the carrier phase difference may include, but is not limited to, at least one of the following i) -iii):

i) Single base station multi-frequency carrier phase difference. For example, the carrier phase difference of reference signals on any two of one or more frequency points (from the same positioning reference base station), and the carrier phase difference of reference signals on any two of one or more carriers.

ii) multi-base station single frequency carrier phase difference. Such as the difference in carrier phases of reference signals (from multiple positioning reference base stations) at a single frequency point, and the difference in carrier phases of reference signals (from multiple positioning reference base stations) at any two of the single carriers.

iii) Multi-base station multi-frequency carrier phase difference. Such as the difference in carrier phases of reference signals (from multiple positioning reference base stations) on any two of the one or more frequency points, and the difference in carrier phases of reference signals (from multiple positioning reference base stations) on any two of the one or more carriers.

LOS/NLOS information (LOS/NLOS information for UE/gNB measurements) corresponding to the measurement quantity. The information may be a hard decision indication (e.g., 1 for LOS,0 for NLOS), or a soft decision indication (e.g., 0.4 for 40% probability of NLOS).

It should be noted that the above measurements in respect of different positioning methods are only examples and do not constitute a limitation on the measurements measured at the terminal device side or at the network device side. For example, the measurement results obtained by measurement at the terminal device side may include at least one of or a combination of the measurement results of the terminal device in at least one positioning method described above; similarly, the measurement results obtained by the network device side measurement may include at least one of or a combination of the measurement results of the network device in at least one positioning method described above.

5) Error information of the measurement may include, but is not limited to, at least one of:

(a) Resolution of measurement errors. For example, the resolution of the measurement error may be higher relative to the resolution of the measurement error in the prior art. Assuming that in the prior artThe resolution of the measurement error is 0.1, then the resolution of the measurement error of the present application may be 10 ^-2 、10 ^-3 ……10 ^-7 Etc.

(b) The 3sigma value of the error is measured.

(c) The variance of the measurement error.

(d) Standard deviation of the measurement error.

(e) Covariance of measurement errors.

(f) The upper bound of the measurement error.

(g) The lower bound of the measurement error.

(h) The error mean is measured.

(i) The range of the measurement error. In one embodiment, the range of measurement errors may be represented as an upper measurement error bound and/or a lower measurement error bound.

(j) An error value is measured. In one embodiment, the measurement error value may be expressed as a measurement error mean (different resolutions may be employed) and a measurement error range.

Exemplary error information for the measurement required by the pairing out-of-bounds model (paired overbounding model) algorithm includes: the Residual Risk (Residual Risk), the minimum value of the fluctuation range of Residual Risk (denoted as IRallocation) (irMinimum), the maximum value of the fluctuation range of Residual Risk (irMaximum), the correlation time (Correlation Times), and the like. Among them, irMaximum and irMinimum can be understood as fluctuation ranges of remaining risks.

The pairing hyper-boundary model algorithm is briefly described as follows:

in order to ensure positioning integrity operation, the positioning system needs to meet the following conditions:

p (Error > Bound for longer than TTA |not DNU) <=residual risk+irallocation equation one

All IRallocation values within irMinimum range < = IRallocation < = iraxium formula two

All errors (Error) in equation one are available for the corresponding positioning integrity assistance data and the corresponding DNU flag is set to false.

6) Error event information for a measurement, i.e., information related to an event that caused an error in the measurement, may include, but is not limited to, at least one of: error event of measurement result, occurrence probability of error event of measurement result.

Among other things, error events of the measurement may include, but are not limited to:

(a) Reference signal non-line of sight transmission (not line of sight, NLOS) path.

(b) Reference signal multipath (multipath).

(c) The network device is abnormal. Such as network equipment damage, inability to connect to network equipment, etc,

(d) Distribution of network devices. For example, errors in measurement results due to improper distribution of network devices, e.g. multiple base stations distributed on the same side of the UE,

(e) The auxiliary data is abnormal. Such as that the positioning assistance data is not available, that the positioning assistance data is insufficient, etc.

The occurrence probability of the error event of the measurement result, that is, the probability of occurrence of the error event of the measurement result within a set time is counted. For example, the probability of occurrence of reference signal NLOS path transmission and/or multipath transmission within a set time is counted.

7) The position information of the terminal equipment is a positioning result obtained by positioning the terminal equipment. The location information of the terminal device may include, but is not limited to, at least one of: angle/direction, latitude and longitude, distance from a reference point, geographic position coordinates (e.g., geographic position coordinates referenced to a global or local coordinate system), attitude information, etc.

8) Error information of the location information of the terminal device. Similar to the error information of the measurement results in the above 5), may include, but is not limited to, at least one of:

(a) Resolution of position error. Depending on the positioning integrity requirements, different resolutions, e.g., 10, may be used ^-1 、10 ^-2 、10 ^-3 ……10 ^-7 ……。

(b) A 3sigma value of the position error.

(c) Variance of position error.

(d) Standard deviation of position error.

(e) Covariance of position errors.

(f) The upper bound of the position error.

(g) The lower bound of the position error.

(h) Position error mean.

(i) Range of position errors. In one embodiment, the range of position errors may be represented as an upper position error bound and/or a lower position error bound.

(j) Position error value. In one embodiment, the position error value may be expressed as a position error mean (different resolutions may be employed) and a position error range.

9) Distribution geometry information of at least one network device for representing a distribution state of the at least one network device. By way of example, the distribution geometry information may include, but is not limited to: geometric dilution of precision (geometric dilution of precision, GDOP).

10 Abnormal event information for at least one network device, which may include, but is not limited to, at least one of:

the method comprises the steps of enabling each network device to be abnormal within a set time, enabling at least one network device to be abnormal within the set time, and enabling at least one network device to be abnormal within the set time.

Wherein any network device occurrence anomaly may include, but is not limited to: the network device fails and the network device is not available.

11 A positioning system, which may include, but is not limited to, devices in a communication system that provide services and assistance in positioning of terminal devices, software algorithms within the devices (e.g., algorithms that generate measurements, positioning algorithms, etc.), hardware resources, and so forth.

Illustratively, the positioning system may comprise: a positioning network architecture as shown in fig. 1, a measurement capability of the terminal device and/or the at least one network device for reference signals, a positioning algorithm of the terminal device and/or the LMF network element, etc.

12 The positioning integrity result of the terminal equipment, the uncertainty level of the position information of the terminal equipment obtained by positioning the terminal equipment based on the positioning system can be evaluated, and the reliability of the positioning result of positioning the terminal equipment and the positioning performance of the positioning system can be measured.

The following describes the index of positioning integrity and related concepts:

positioning integrity (Positioning Integrity), also known as positioning integrity, is used to measure the confidence in the accuracy of position-related data provided by a positioning system, as well as the ability to provide timely and effective alerts to a location service (location services, LCS) entity (or LCS client) when the positioning system fails to meet expected operating conditions. The relevant performance indicators (also referred to as positioning integrity parameters) may include: alert Limit (AL), alert time (TTA), integrity risk of the target (target integrity risk, TIR), system availability (integrity availability, IA), protection Level (PL), etc.

Alarm boundary AL: also known as an alarm limit/alarm threshold, defined as the maximum positioning error allowed by the positioning system to meet the expected application requirements, may be used to determine whether the positioning system is available. For example, if the actual positioning error exceeds AL, it is indicated that the positioning system does not meet the expected application requirements, at which point it should be determined that the system is not available.

Alarm time TTA: defined as the maximum allowed time period from the positioning error exceeding the Alarm Limit (AL) to the provision of the corresponding alarm.

Integrity risk TIR of targets: also known as integrity risk of the target, or integrity/Integrity Risk (IR), is defined as the probability that a positioning error exceeds an Alarm Limit (AL) without informing the user within a required Time To Alarm (TTA). Notably, TIR is generally defined as the probability per unit of time (e.g., per hour, per second, or per individual sample).

System availability IA: defined as the percentage of time PL is below the desired Alarm Limit (AL).

Protection level PL: defined as satisfying a statistical upper limit for positioning errors under integrity conditions.

(System) Feared Event (feed Event): all events that may cause the final calculated position to deviate from the true position are meant, and whether or not the event can be recognized by the system, including natural, artificial, systematic or operational nature events.

Misleading information event (misleading information event, MI event): an MI event may occur when the positioning system is determined to be available and the positioning error exceeds PL.

Dangerous misleading information event (hazardous nisleading information Event, HMI event): an HMI event may occur when the positioning system is determined to be available, but the positioning error exceeds AL and no alarm is raised within TTA.

The reporting mode of the current positioning integrity result comprises the following two modes:

mode 1: reporting the positioning integrity parameters.

The positioning integrity parameters may include, but are not limited to, the positioning integrity parameters in the above examples, such as: AL, TTA, TIR, IA, PL, etc.

In one implementation, the other integrity parameters are all preset for the service performed by the terminal device, so that only PL needs to be calculated. Thus, in mode 1, the positioning integrity calculation unit may only report PL.

In one implementation, the positioning integrity calculation unit may report at least one of the positioning integrity parameters described above. For example, PL and at least one of the other positioning integrity parameters, such as PL and corresponding system availability IA.

Mode 2: reporting the integrity event.

Illustratively, the integrity event may actually include at least one of a system available or reliable, a system unavailable or unreliable, a probability of a system available or reliable, a probability of a system unavailable or unreliable, a misleading information event, a dangerous misleading information event.

In this mode, the positioning integrity calculation unit may determine the positioning integrity parameters first and then determine the integrity event based on the positioning integrity parameters. In one implementation, the location integrity calculation unit may calculate PL first and then determine the integrity event based on the relative relationship of PL to AL (optionally, also based on other location integrity parameters). For example, when PL > AL, the integrity event is determined to be: the positioning system is in an unavailable state (system unavailable); when PL is less than or equal to AL, the integrity event is determined to be: the positioning system is in a usable state (system available).

In one implementation, the positioning integrity calculation unit may report the determined integrity event.

In another implementation, the positioning integrity calculation unit may report an integrity event, and at least one positioning integrity parameter, such as system unavailability, and corresponding AL, TTA, TIR or IA.

It should be further noted that, in the embodiment of the present application, the positioning integrity calculation unit may adopt any one of the foregoing positioning integrity result reporting manners, and may also adopt two of the foregoing positioning integrity result reporting manners at the same time, which is not limited in the present application.

It should be noted that the description of the integrity result above is used as a possible implementation manner, and does not limit the representation manner of the integrity result in the embodiment of the present application.

13 A location calculation unit, which is an entity or a functional module responsible for calculating or estimating location information of the terminal device. The location calculation unit may be, for example, a terminal device, a network device (e.g., a base station, etc.), an LMF, etc.

14 A positioning integrity calculation unit being an entity or a functional module responsible for calculating or estimating a positioning integrity result (e.g. a positioning integrity parameter PL or an integrity event) of the terminal device. By way of example, the location integrity calculation unit may be a terminal device, a network device (e.g., a base station, etc.), an LMF, etc.

15 "and/or", describes an association relationship of the association object, and indicates that there may be three relationships, for example, a and/or B, may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

In the present application, a plurality of items refers to two or more items. At least one (item) refers to one (item) or a plurality (items).

In addition, it should be understood that in the description of the present application, the words "first," "second," and the like are used merely for distinguishing between the descriptions and not for indicating or implying any relative importance or order.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a possible positioning network architecture to which the communication method according to the embodiment of the present application is applicable. The positioning network architecture is a positioning network architecture based on a core network in a mobile communication system. Referring to fig. 1, the positioning network architecture includes two parts, namely a terminal device and a mobile communication system.

It should be noted that the present application is not limited to the system configuration of the mobile communication system, that is, the communication method provided in the embodiment of the present application may also be applied to communication systems of various systems, for example: long term evolution (long term evolution, LTE) communication systems, fifth generation (The 5th Generation,5G) communication systems (also referred to as 5G New Radio (NR) systems), sixth generation (The 6th Generation,6G) communication systems, future communication systems, global system for mobile communications (global system for mobile communications, GSM) systems, code division multiple access (code division multiple access, CDMA) systems, wideband code division multiple access (wideband code division multiple access, WCDMA) systems, general packet radio service (general packet radio service, GPRS), LTE frequency division duplex (frequency division duplex, FDD) systems, LTE time division duplex (time division duplex, TDD), universal mobile communication systems (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication systems, and The like.

As shown in fig. 1, the mobile communication system can be divided into two parts, a (radio) access network (R) AN and a Core Network (CN). The system of the mobile communication system ((R) AN and/or CN) is not limited to the present application.

Illustratively, in order to address challenges of wireless broadband technology, keeping the leading advantage of 3GPP networks, the 3GPP standards group has formulated a next generation mobile communication network architecture (next generation system), referred to as a 5G network architecture. The architecture supports not only 3GPP standard group-defined wireless technologies (e.g., LTE, etc.) access to the 5G core network (5G core network,5GC), but also non-3GPP access technologies access 5GC through non-3GPP interworking functions (non-3GPP interworking function,N3IWF), trusted non-3GPP gateway functions (trusted non-3GPP gateway function,TNGF), trusted WLAN interworking functions (trusted WLAN interworking function, TWIF), or next generation access gateway (next generation packet data gateway, NG-PDG). In this architecture, the (R) AN may be referred to as a next generation radio access network (next-generation radio access network, NG-RAN). Wherein in the architecture, the core network functions are divided into user plane network element functions (user plane function, UPF) and control plane network element functions (control plane function, CP). UPF is mainly responsible for packet data packet forwarding, quality of service (quality of service, qoS) control, billing information statistics, etc. The CP is mainly responsible for user registration authentication, mobility management, and issuing packet forwarding policies, qoS control policies, etc. to the UPF, and may be further subdivided into access and mobility management functions (access and mobility management function, AMF) and session management functions (session management function, SMF), etc.

The (R) AN is mainly responsible for the radio access functions of the terminal devices, and the functions of the (R) AN may be implemented by the network device. The network equipment is an entity capable of receiving and transmitting wireless signals at the network side, and is responsible for providing wireless access related services for terminal equipment in the coverage area of the network equipment and positioning related services, and realizing physical layer functions, resource scheduling and wireless resource management, qoS management, wireless access control, user plane data forwarding and mobility management functions. The network device and the terminal device can realize air interface transmission through Uu interface.

During the positioning network architecture performing the positioning services of the terminal device, there may be at least one network device in the (R) AN that participates in the positioning of the terminal device, as shown in fig. 1. The application is not limited to the format of the at least one network device. The network device in the (R) AN may be AN eNB or a gNB, for example. When the network equipment is eNB, the terminal equipment can communicate with the network equipment through an LTE-Uu interface; when the network device is a gNB, the terminal device may communicate with the network device via an NR-Uu interface.

The CN is mainly responsible for connecting the terminal device to different data networks according to call requests or service requests sent by the terminal device through the (R) AN, and services such as charging, mobility management, session management, positioning management, etc. In the process of positioning the terminal equipment and determining the positioning integrity result of the terminal equipment, the related core network element mainly comprises: an access and mobility management function (access and mobility management function, AMF) network element and an LMF network element. The functions of these two network elements are described in detail below.

The AMF network element, called AMF for short, is mainly responsible for the functions of access and mobility management of the terminal equipment. In the process that the positioning network architecture executes the positioning service of the terminal device, when the positioning service initiator initiates a request for providing a position service for a certain terminal device, the AMF may receive the position service request from the positioning service initiator and forward the position service request to the LMF to request the LMF to provide the position service for the terminal device. In addition, after the position information of the terminal equipment is obtained, the position information of the terminal equipment can be returned to the position service initiator. In some embodiments, the AMF may also act as a location service initiator, sending a location service request to the LMF for a certain terminal device, to request that the LMF provide location services for the terminal device.

In the present application, the location service sponsor may be, but is not limited to,: terminal equipment, location services (location services, LCS) entity, AMF, etc. The LCS entity may also be referred to as an LCS client (client), and is a functional entity that interacts with a relevant network element of the LCS of the entire location service system in order to obtain location information of the terminal device. The LCS entity may be some application entity within the mobile communication system (e.g. some functional entity or network element within the core network); or may be located outside the mobile communication system and access to the location services architecture via a network.

The LMF network element, which can be called LMF for short, is mainly used for realizing functions such as positioning. Alternatively, the LMF may provide different types of location services for the terminal device, including but not limited to: positioning the terminal device and transmitting auxiliary data or auxiliary information about positioning and positioning integrity to the terminal device. Wherein, in the present application, positioning assistance data or assistance information represents various related data or information required when the position information of the terminal device is calculated when the terminal device is positioned; positioning integrity assistance data or assistance information, representing various relevant data or information needed in calculating the positioning integrity result of the terminal device.

As shown in fig. 1, the control plane of the LMF is an enhanced-service mobile location center (enhanced-serving mobile location centre, E-SMLC) for managing coordination and scheduling of resources required by the location of the terminal device. 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.

In the embodiment of the application, the LMF and the LMF can communicate through an NL1 interface.

Communication interactions between the LMF and network devices in the (R) AN may be through NR positioning protocol a (NR positioning protocol annex, NRPPa) NRPPa messages. For example, assistance data regarding positioning and positioning integrity results, etc., may be communicated between the LMF and the network device via NRPPa messages.

Communication interaction between the LMF and the terminal device may be performed through LTE positioning protocol (LTE positioning protocol, LPP) messages. For example, assistance data regarding positioning and positioning integrity results, etc. may be communicated between the LMF and the terminal device via LPP messages.

It should be understood that fig. 1 is only a schematic diagram of one possible positioning network architecture to which the communication method provided in the embodiment of the present application is applicable, 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 positioning network architectures. In the positioning network architecture shown in fig. 1, the terminal device may be connected to a network device in the (R) AN in a wireless manner, and the network device may be connected to a core network element in the CN in a wireless or wired manner. The core network element and the network device may be separate physical devices, or the functions of the core network element and the logic functions of the network device may be integrated on the same physical device, or the functions of part of the core network element and part of the network device may be integrated on one physical device. The terminal may be fixed in position or movable.

In addition, the communication method provided by the application can be applied to various scenes, for example, one or more of the following communication scenes: 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.

The following is a brief description of the current positioning method. The following positioning methods may be applied to the positioning network architecture shown in fig. 1.

1. According to the division of the devices transmitting the reference signals, the positioning methods can be divided into three types:

(1) Downlink positioning method

At least one network device respectively transmits reference signals (i.e., DL-PRS); the terminal device measures the reference signal from at least one network device to obtain a measurement result. Finally, the LMF or the terminal equipment locates the terminal equipment based on the measurement result and determines the position information of the terminal equipment.

Wherein the at least one network device is a network device involved in the positioning of the terminal device. For example, the at least one network device may be a positioning reference base station of a terminal device, and may include: a serving base station of the terminal device, and a neighbor base station adjacent to the serving base station.

(2) Uplink positioning method

The terminal equipment transmits a reference signal (namely UL-SRS); at least one network device measures a reference signal from a terminal device to obtain a measurement result. Finally, the LMF locates the terminal equipment based on the measurement result and determines the position information of the terminal equipment.

(3) Uplink and downlink combined positioning method

The method couples the downlink positioning method and the uplink positioning method. In the method, at least one network device transmits first reference signals (i.e., DL-PRSs), respectively; the terminal device transmits a second reference signal (i.e., UL-SRS). The terminal equipment measures a first reference signal from at least one network equipment to obtain a first measurement result; the at least one network device measures a second reference signal from the terminal device to obtain a second measurement result.

In one embodiment, the LMF locates the terminal device based on the first measurement result and the second measurement result, and determines location information of the terminal device.

In another embodiment, the terminal device locates the terminal device based on the first measurement result, and determines first location information of the terminal device; and the LMF locates the terminal equipment based on the second measurement result and determines second position information of the terminal equipment.

2. The positioning methods can be classified into two types according to the positioning unit that performs the positioning operation (determining the position information of the terminal device):

(1) Positioning method based on terminal equipment (UE-based)

The terminal equipment locates the terminal equipment and determines the position information of the terminal equipment. Optionally, the terminal device may also provide the measurement results.

(2) LMF (LMF-based) based positioning method

The LMF (in case of acquiring relevant assistance data for calculating the location information of the terminal device) locates the terminal device, determines the location information of the terminal device. Alternatively, in the present method, the terminal device may only provide the measurement result and is not responsible for positioning, so the method may also be referred to as a terminal device assisted (UE-assisted) positioning method.

Note that: in a scenario where a base station to which a UE accesses participates in positioning of the UE (may be simply referred to as Uu positioning scenario) and in a scenario where positioning of the UE is achieved between two UEs through a sip link technology (may be simply referred to as sip link positioning scenario), the UE may be classified into UE-based positioning and LMF-based positioning according to a location calculation unit or LMF. The UE-based positioning in the Sidelink positioning scene is also called as Sidelink-based positioning, and the LMF-based positioning is also called as Sidelink-based positioning.

As is clear from the above description of the positioning method, in general, in the downlink positioning method, positioning may be performed based on the terminal device, or positioning may be performed based on the LMF. In the downlink positioning method, after the terminal equipment measures the reference signal from at least one network equipment to obtain a measurement result, the terminal equipment can directly position the terminal equipment according to the measurement result to obtain the position information of the terminal equipment; or the measurement result is sent to the LMF, and the LMF locates the terminal equipment according to the measurement result to obtain the position information of the terminal equipment.

In the uplink positioning method, positioning is generally performed based on LMF. In the uplink positioning method, after at least one network device measures a reference signal from a terminal device to obtain a measurement result, the measurement result can be sent to an LMF, and the LMF positions the terminal device according to the measurement result to obtain position information of the terminal device.

There is currently a lack of positioning integrity related mechanisms. The application provides a method for decoupling positioning integrity result calculation and positioning calculation.

In one implementation, the same computing unit may be responsible for computing the location information and positioning integrity results. Such as LMF, calculates location information and is also responsible for calculating location integrity results. In this way, the latency of calculating the positioning integrity can be reduced, reducing signaling overhead (e.g., without having to send measurement information to another computing unit).

In another implementation, the calculation of the location information and the positioning integrity result may be respectively responsible for different calculation units. For example, the LMF is responsible for calculating location information and the UE is responsible for calculating location integrity results. In this way, the calculation complexity of the position calculation unit can be reduced, and the accuracy of the positioning integrity result can be ensured.

Based on this, the present application provides the following communication methods, referring to fig. 2A-4, which can be applied to the positioning network architecture shown in fig. 1. By the method, the calculation position information and the calculation positioning integrity result can be decoupled, so that the calculation complexity of the position calculation unit is reduced, meanwhile, the accuracy and timeliness of the positioning integrity result are ensured, and finally, the effect of optimizing the positioning integrity result is realized. The method provided by each embodiment is described in detail below with reference to the corresponding flowchart.

Embodiment one:

a communication method provided by an embodiment of the present application will be described below with reference to a flowchart of a communication method shown in fig. 2A. The application scene of the method adopts a downlink positioning method for a positioning network architecture. In the embodiment of the present application, the terminal device performs a positioning process (i.e., a positioning method based on the terminal device) as a position calculation unit, and other devices (devices other than the terminal device) may calculate a positioning integrity result.

A location service initiator in a positioning network architecture initiates a location service request for a terminal device. Depending on the location service initiator, the process of initiating a location service request for a terminal device may be implemented by, but is not limited to, any of the following means S201a-S201 c.

S201a: the location service initiator is an LCS entity. The LCS entity may send a location service request to the AMF for the terminal device. The location service request is for requesting determination of location information of the terminal device.

Optionally, the location service request may include a location integrity parameter, such as AL, TTA, TIR, IA, set for the service performed by the terminal device. In the embodiment of the present application, this feature may be equally applicable to the location service requests in S201b and S201 c.

S201b: the location service initiator is an AMF that initiates the location service request. Similarly to S201a, the location service request may also include a location integrity parameter set for the service performed by the terminal device, and in particular, reference may be made to the description of the location integrity parameter in S201 a.

For example, the AMF may perform S201b when an emergency call terminal device is required.

S201c: the location service initiator is a terminal device. The terminal device sends a location service request to the AMF.

In the embodiment of the present application, since other devices need to perform the operation of calculating the positioning integrity result, the positioning integrity parameter set for the service performed by the terminal device may also be included in the location service request sent by the terminal device, so that other devices may obtain the positioning integrity result according to the positioning integrity parameter.

S202: the AMF sends a location service request to the LMF, which may be a location service request received or initiated in any one or more of steps S201a, S201b, S201 c.

S203: at least one network device participating in the positioning of the terminal device transmits a reference signal.

Alternatively, each network device may transmit one or more reference signals.

S204: the terminal device measures at least one reference signal from at least one network device to obtain a measurement result.

S205: and the terminal equipment obtains the position information of the terminal equipment according to the measurement result obtained by signal measurement.

Illustratively, the terminal device may employ a DL-TDOA location method, a DL-AOD location method, and the like.

Optionally, the terminal device reports the location information to the network side, and the network side performs subsequent processing, and the specific process is not described herein.

Optionally, in this step, the terminal device may locate the terminal device according to an existing location algorithm (such as DL-TDOA location method, DL-AOD location method, etc.), and the specific process is not described herein.

S206: the terminal device transmits the first information. The first information is used for determining a positioning integrity result of the terminal equipment. Optionally, the first information may include at least one of the following: the measurement result obtained in S204, the position information of the terminal device obtained in S205, and the like.

It should be noted that in this step, the terminal device may send said first information to a positioning integrity calculation unit in the current positioning network architecture. Alternatively, the positioning integrity calculation unit may be a device in the current positioning network architecture that communicates with the terminal device, for example: any one of the at least one network device, AMF, LMF, or other terminal device, etc., as the present application is not limited in this regard.

Optionally, when at least one network device, AMF, the terminal device or other terminal device has capability to calculate positioning integrity, capability information related to positioning integrity may be reported to the LMF, for example, whether positioning integrity calculation, measurement, etc. is supported. In this way, the LMF may indicate it as a positioning integrity calculation unit, and may also inform the terminal device or the at least one network device of the positioning integrity calculation unit so that the terminal device or the at least one network device may send calculated positioning integrity assistance data (e.g. first information) to the positioning integrity calculation unit; or the LMF may also inform the terminal device or the at least one network device to the positioning integrity calculation unit so that the positioning integrity calculation unit may obtain positioning integrity assistance data from the terminal device or the at least one network device.

In this embodiment, the positioning integrity calculating unit is taken as an LMF as an example, and steps performed when other devices are used as the positioning integrity calculating unit may refer to the steps of the LMF. In summary, the positioning integrity calculation unit may obtain other positioning integrity auxiliary data through network side forwarding or other manners, so as to calculate a positioning integrity result of the terminal device. For example, the other positioning integrity assistance data may include abnormal event information for at least one network device, distribution geometry information for at least one network device, and the like.

When the positioning integrity calculation unit is an LMF, step S206 is to send first information to the LMF by the terminal device. The LMF receives first information from the terminal device.

In one embodiment, the first information further includes at least one of the following:

error information of the measurement result, error event information of the measurement result, residual error of the position information, error information of the position information, distribution geometry information of at least one network device, validity time of the first information.

It should be noted that the above description of the content in the first information is given as an example and is not limiting. In the embodiment of the present application, the first information may include positioning integrity auxiliary data that can be determined by the terminal device side, and other measurement information or auxiliary information. For example, other measurement information or auxiliary information may include: the terminal device performs measurement results (for example, measurement results of a first path (for example, RSRP), measurement results of other paths, etc.) obtained by signal measurement, time information corresponding to the measurement results, and the terminal device receives or transmits channel delay error information, etc.

Alternatively, the LMF may send the first message to the terminal device through S206 a. The first message is for requesting first information. In this way, the terminal device may send the first information to the LMF after receiving the first message. Illustratively, S206a may be performed prior to S206.

The execution time of S206 is not limited by the present application. For example, when the location information of the terminal device is not included in the first information and the measurement result is included, S206 may be performed after S204; when the first information does not include location information of the terminal device or a measurement result, S206 may be performed after S202; when the location information of the terminal device is included in the first information, S206 may be performed after S205.

In one embodiment, the terminal device and the LMF may interact through LPP messages. Illustratively, the first message in S206a may be an LPP request location message (e.g., LPP Request Location Information) or an LPP request assistance data message (e.g., LPP Request Assistant Data); the first information in S206 may be carried in an LPP provided location message (LPP Provide Location Information) or an LPP provided assistance data message (e.g., LPP Provide Assistance Data).

S207: optionally, the at least one network device may also send second information to the LMF. The second information is used for determining a positioning integrity result of the terminal equipment.

Optionally, the second information includes at least one of the following:

abnormal event information of at least one network device, distribution geometry information of at least one network device, validity time of the second information.

It should be noted that the above description of the content in the second information is by way of example and not by way of limitation. In the embodiment of the present application, the second information may include other positioning integrity auxiliary data provided by the network device side.

Alternatively, the LMF may send a second message to the at least one network device through S207 a. The second message is for requesting second information. In this way, the at least one network device may send the second information to the LMF after receiving the second message. For example, S207a may be performed before S207.

In addition, it should be noted that in S207, each of the at least one network device may transmit the second information to the LMF; or one of the at least one network device (e.g., a serving base station of the terminal device) may send the second information to the LMF after collecting the second information from the other network device, as the application is not limited in this respect.

The present application is not limited to the execution time of S207, and S207 may be executed at any time before S208.

In one embodiment, communication interactions between at least one network device and the LMF may be via NRPPa messages. The second message in S207a may be an NRPPa message (e.g., transmission and reception node (transmit and reception point, TRP) message request (TRP Information Request)); the second information in S207 may be carried in an NRPPa message, such as TRP message response (TRP Information Response).

S208: the LMF determines a location integrity result of the terminal device based on at least one of the first information and the second information.

In a possible implementation, when the first information includes a valid time of the first information, then the LMF may use the first information to determine a positioning integrity result of the terminal device during the valid time of the first information. Similarly, when the second information includes the valid time of the second information, the LMF may determine the positioning integrity result of the terminal device using the second information within the valid time of the second information. After the validity time of the first information expires, the LMF may discard the first information; after the validity time of the second information expires, the LMF may discard the second information.

Optionally, in this step, the LMF may calculate the positioning integrity result of the terminal device according to a positioning integrity result algorithm (e.g., GNSS positioning integrity result algorithm, etc.), and the specific process is not described herein.

Illustratively, the GNSS positioning integrity result algorithm is a classical receiver autonomous integrity detection (classic receiver autonomous integrity monitoring, composite RAIM) algorithm, an evolved RAIM (ARAIM) algorithm, or a Relative RAIM (RRAIM) algorithm, or the like.

S209: optionally, the LMF performs a reporting procedure of the positioning integrity result. Alternatively, the positioning system may perform a system reconfiguration procedure.

Illustratively, in the positioning integrity result reporting procedure in S209, the LMF may first send the positioning integrity result to the AMF; when the AMF is a location service initiator, the AMF can continue to process after receiving the positioning integrity result; when the LCS entity or the terminal equipment is a location service initiator, the AMF sends the received location integrity result to the location service initiator.

In addition, based on the positioning integrity result, the positioning system may perform reconfiguration, e.g., changing a positioning algorithm, updating a configuration of reference signals in at least one network device, or discarding the positioning result (e.g., discarding location information calculated by the terminal device).

It should be noted that, generally, the positioning integrity results of different terminal devices in the same area are similar, so that the calculation process of the positioning integrity results is migrated to the network side, and all the terminal devices in the area do not need to calculate the positioning integrity results, so that the complexity and the power consumption of the terminal devices can be reduced.

In one embodiment, the terminal device may also send the measurement results to the LMF, which determines the location information of the terminal device.

In one embodiment, the terminal device may also be used as a positioning integrity calculation unit to calculate a positioning integrity result of the terminal device through the positioning integrity auxiliary data determined locally and/or the positioning integrity auxiliary data received from the network side, and the specific process may also refer to the above process of calculating the positioning integrity result by using the LMF. For example, referring to fig. 2B, the terminal device may acquire third information from the at least one network device or LMF (in fig. 2B, for example, LMF) through S210, where the third information may include at least one item of the second information; then, the terminal device calculates a positioning integrity result of the terminal device based on the content in the first information and/or the content in the third information through S211. Alternatively, the LMF may perform S210 after S207. Optionally, the terminal device may send a third message to the at least one network device or LMF to request the third information through S210 a. In S209, the terminal device may also report the determined positioning integrity result to the AMF; when the AMF is a location service initiator, the AMF can continue to process after receiving the positioning integrity result reported by the terminal equipment; when the LCS entity is a location service initiator, the AMF is sending the received location integrity result to the LCS. In addition, the AMF may also notify the LMF of the positioning integrity result reported by the terminal device.

In summary, the embodiment of the application provides a communication method. In the method, the terminal device can be used as a position calculation unit to perform a positioning calculation operation, and other devices can be used as a positioning integrity calculation unit to perform an operation of calculating a positioning integrity result. According to the method, the two operations of calculating the position information and calculating the positioning integrity result can be decoupled, so that the calculation complexity of the terminal equipment is reduced, meanwhile, the accuracy and timeliness of the positioning integrity result are guaranteed, and finally, the effect of optimizing the positioning integrity result is achieved.

It should be further noted that the embodiment shown in fig. 2A above is described in an application scenario in which the positioning network architecture adopts a downlink positioning method. However, this embodiment is also applicable to an application scenario where the positioning network architecture adopts the uplink and downlink joint positioning method. In this scenario, the second message may further include: the at least one network device measures at least one reference signal from the terminal device to obtain a measurement result, error information of the measurement result, error event information of the measurement result, and the like. In this way, the LMF may also calculate location information of the terminal device and/or determine a location integrity result of the computing terminal device based on the content in the second message.

Embodiment two:

a communication method provided by an embodiment of the present application will be described below with reference to a flowchart of a communication method shown in fig. 3A. The application scene of the method adopts a downlink positioning method for a positioning network architecture. In an embodiment of the present application, the location calculation unit (non-terminal device) performs a location calculation procedure (for example, an LMF-based location method), and other devices (devices other than the location calculation unit) may calculate the location integrity result.

S301a-S304 are identical to S201a-S204 in the embodiment shown in FIG. 2A, and reference may be made to each other for the same steps, which are not repeated here.

S305: the terminal device transmits the first information. Wherein the first information is used to determine location information of the terminal device. The first information includes a measurement result obtained by the terminal device performing measurement on at least one reference signal from at least one network device.

In this embodiment, the first information may further include other measurement information or auxiliary information that can be determined by the terminal device side, and is not limited to the measurement result obtained by the terminal device measurement. For example, other measurement information or auxiliary information may include: the terminal device performs measurement results (for example, measurement results of a first path (for example, RSRP), measurement results of other paths, etc.) obtained by signal measurement, time information corresponding to the measurement results, and the terminal device receives or transmits channel delay error information, etc.

In this step, the terminal device may send the first information to a location calculation unit in the current positioning network architecture. Alternatively, the location calculating unit may be any one of at least one network device participating in the positioning of the terminal device, an AMF, an LMF, or other terminal devices, etc., which is not limited by the present application.

Alternatively, when at least one network device, AMF, the terminal device, or other terminal device has location capability (capability of calculating location information of the terminal device), location related capability information, such as whether location calculation, measurement, etc., is supported, may be reported to the LMF. In this way, the LMF may instruct it as a location calculation unit, and may also notify the terminal device of the location calculation unit so that the terminal device may send positioning assistance data to the location calculation unit; or the LMF may also inform the terminal device to the location calculation unit so that the location calculation unit may obtain positioning assistance data from the terminal device.

In this embodiment, only the location calculation unit is taken as an LMF as an example, and steps performed when other devices are taken as the location calculation unit may refer to steps of the LMF. In summary, the location calculation unit may obtain positioning assistance data via the network side or otherwise, so that the location information of the terminal device may be calculated.

When the location calculating unit is an LMF, step S305 is to send the first information to the LMF by the terminal device. The LMF receives first information from the terminal device.

Alternatively, the LMF may send the first message to the terminal device through S305 a. The first message is for requesting first information. In this way, the terminal device may send the first information to the LMF after receiving the first message. Illustratively, S305a may be performed prior to S305.

In one embodiment, the first message and/or the first information may be transmitted between the terminal device and the LMF through an LPP message.

S306: and the LMF obtains the position information of the terminal equipment according to the measurement result in the first information.

Optionally, after the LMF obtains the location information of the terminal device, the location information may be reported to the location service initiator, or the terminal device, so as to perform subsequent processing, and the specific process is not described herein.

Optionally, in this step, the LMF may locate the terminal device according to an existing location algorithm (for example, DL-TDOA location method, DL-AOD location method, etc.), and the specific process is not described herein.

S307: alternatively, the LMF may receive a fourth message from the at least one network device. The fourth information is used for determining a positioning integrity result of the terminal equipment.

In one embodiment, the fourth information may include at least one of the following:

abnormal event information of at least one network device, distribution geometry information of at least one network device.

Note that the above description of the content in the fourth information is by way of example, and is not limiting. In the embodiment of the present application, the fourth information may include positioning integrity auxiliary data that can be determined by the network device side, and other positioning auxiliary data (such as measurement information or auxiliary information of the network device side, which may include configuration information of a reference signal, for example).

Alternatively, the LMF may send a fourth message to the at least one network device through S307 a. The fourth message is for requesting fourth information. In this way, the at least one network device may send fourth information to the LMF after receiving the fourth message. Illustratively, S307a may be performed prior to S307.

In addition, it should be noted that in S307, each of the at least one network device may send fourth information to the LMF, respectively; or one of the at least one network device (e.g., a serving base station of the terminal device) may send fourth information to the LMF after collecting the fourth information from the other network device, the present application is not limited in this regard.

In one embodiment, communication interactions between at least one network device and the LMF may be via NRPPa messages. The fourth message in S307a may be an NRPPa message (e.g., TRP Information Request), by way of example; the fourth information in S307 may be carried in an NRPPa message (e.g., TRP Information Response).

S308: the LMF transmits the second information. Wherein the second information is used to determine a positioning integrity result of the terminal device.

In a first embodiment, the second information includes at least one of the following:

position information of the terminal device, residual error of the position information, error information of the position information, and effective time of the second information.

In the second embodiment, optionally, when the LMF obtains the fourth information through S307, the LMF may further transmit part or all of the content in the fourth information together with the second information. I.e. the second information comprises at least one of the following:

In S308, the second information sent by the LMF may conform to the first embodiment and/or the second embodiment, which is not limited by the present application.

It should be noted that the above description of the content in the second information is by way of example and not by way of limitation. In the embodiment of the present application, the second information may include positioning integrity auxiliary data that can be obtained by the LMF and/or other positioning integrity auxiliary data provided by the LMF.

In this step, the LMF may send the second information to a location integrity calculation unit in the current location network architecture. Alternatively, the positioning integrity calculating unit may be any one of the at least one network device, the AMF, the terminal device, other terminal devices, etc., which is not limited by the present application.

Optionally, when at least one network device, AMF, the terminal device, or other terminal device has capability to calculate positioning integrity, capability information related to positioning integrity may be reported to the LMF, such as whether positioning integrity calculation, measurement, etc. is supported. In this way, the LMF may indicate it as a positioning integrity calculation unit, and may also inform the terminal device or the at least one network device of the positioning integrity calculation unit so that the terminal device or the at least one network device may send positioning integrity assistance data to the positioning integrity calculation unit; or the LMF may also inform the terminal device or the at least one network device to the positioning integrity calculation unit so that the positioning integrity calculation unit may obtain positioning integrity assistance data from the terminal device or the at least one network device.

In this embodiment, the positioning integrity calculating unit is taken as an example of the terminal device, and the steps performed when the other devices are taken as the positioning integrity calculating unit may refer to the steps of the terminal device. In summary, the positioning integrity calculation unit may obtain other positioning integrity assistance data via the network side or otherwise, so that the positioning integrity result of the terminal device may be calculated. For example, the other positioning integrity assistance data may include abnormal event information for the at least one network device, distribution geometry information for the at least one network device, and the like.

When the positioning integrity calculation unit is a terminal device, step S308 is to send second information to the terminal device by the LMF. The terminal device receives second information from the LMF.

Alternatively, the terminal device may send a second message to the LMF through S308 a. The second message is for requesting second information. Thus, the LMF may send the second information to the terminal device after receiving the second message. Illustratively, S308a may be performed prior to S308.

In one embodiment, the terminal device and the LMF may interact through LPP messages. Illustratively, the second message in S308a may be an LPP request assistance data message (e.g., LPP Request Assistance Data); the second information in S308 may be carried in the LPP request assistance data response message.

S309: optionally, the terminal device may also receive third information. Wherein the third information is used for determining a positioning integrity result of the terminal device. Optionally, the third information includes at least one of the following:

In one embodiment, the third message is sent by the at least one network device. The at least one network device may transmit the third information to the terminal device through S309, for example. Optionally, the at least one network device may directly send the third message to the terminal device, or may first send the third message to the device such as LMF, AMF, etc., and then send the third message to the terminal device by the device such as LMF, AMF, etc.

Note that the above description of the content in the third information is by way of example, and is not limiting. In the embodiment of the present application, the third information may include positioning integrity auxiliary data that can be determined by the network device side, and other positioning auxiliary data (such as measurement information or auxiliary information of the network device side, which may include configuration information of a reference signal, for example).

Alternatively, the at least one network device may send the third message via a broadcast message. The broadcast message may be, for example, a positioning system information block (positioning system information block, posSIB). For example, the serving base station of the terminal device may broadcast a posSIB carrying the third information such that all terminal devices within the coverage area of the serving base station may receive the third information.

Optionally, the terminal device may send a third message to the at least one network device through S309 a. The third message is for requesting third information. In this way, the at least one network device may send the third information to the terminal device after receiving the third message. For example, S309a may be performed before S309.

S310: the terminal device may determine a positioning integrity result of the terminal device according to at least one of the second information and the third information.

Optionally, in this step, the terminal device may also consider the measurement result obtained when executing S304, error information of the measurement result, error event information of the measurement result, and the like when determining the positioning integrity result.

In one possible implementation, when the second information includes a valid time of the second information, then the terminal device may determine a positioning integrity result of the terminal device using the second information within the valid time of the second information. Similarly, when the third information includes the valid time of the third information, the terminal device may determine the positioning integrity result of the terminal device using the third information within the valid time of the third information. When the effective time of the second information expires, the terminal device may discard the second information; when the validity time of the third information expires, the terminal device may discard the third information.

Optionally, in this step, the terminal device may calculate the positioning integrity result of the terminal device by using a positioning integrity result algorithm (e.g., GNSS positioning integrity result algorithm, etc.), and the specific process is not described herein.

S311: optionally, the terminal device executes a positioning integrity result reporting procedure, and the positioning system may execute a system reconfiguration procedure.

For example, in the positioning integrity result reporting procedure in S311, the terminal device may first send the positioning integrity result to the AMF; when the AMF is a location service initiator, the AMF can continue to process after receiving the positioning integrity result; when the LCS entity is a location service initiator, the AMF sends the location service initiator to the LCS entity.

In addition, based on the positioning integrity result, the positioning system may perform a system reconfiguration procedure, such as changing a positioning algorithm, updating a configuration of reference signals in at least one network device, or discarding the positioning result (e.g., discarding location information calculated by the terminal device).

In one embodiment, the LMF may also be used as a positioning integrity calculation unit, and calculate a positioning integrity result of the terminal device based on the received positioning integrity auxiliary data, and the specific process may refer to the process of calculating the positioning integrity result by the terminal device. For example, as shown in fig. 3B, the LMF may acquire fifth information from the terminal device through S312, where optionally the fifth information may include at least one of positioning integrity auxiliary data determined on the terminal device side, where the positioning integrity auxiliary data is determined on the terminal device side, such as a measurement result obtained by the terminal device, error information of the measurement result, and error event information of the measurement result. The LMF may then calculate a location integrity result of the terminal device based on the content in the fourth information and/or the fifth information through S313. Alternatively, the LMF may transmit a fifth message to the terminal device to request the fifth information through S312 a. In one implementation, the terminal device may further include the content of the fifth information in the first information, that is, the fifth information is transmitted to the LMF through S305 in fig. 3A, so that the terminal device does not need to perform S312 and S312a, thereby saving signaling overhead. In S311, the LMF may also report the determined positioning integrity result to the AMF; when the AMF is a location service initiator, the AMF can continue to process after receiving the positioning integrity result; when the LCS entity or the terminal equipment is a location service initiator, the location service initiator is sent to the LCS entity or the terminal equipment by the AMF.

In summary, the embodiment of the application provides a communication method. In the method, the LMF can be used as a position calculation unit to perform a positioning calculation operation, and other devices can be used as a positioning integrity calculation unit to perform an operation of calculating a positioning integrity result. The method can decouple the two operations of calculating the position information and calculating the positioning integrity result to reduce the calculation complexity of the position calculation unit, ensure the accuracy and timeliness of the positioning integrity result, and finally realize the effect of optimizing the positioning integrity result. In addition, the method can transfer the operation of calculating the positioning integrity result to the terminal equipment side, so that the terminal equipment does not need to acquire the positioning integrity result from other equipment, the time delay of the terminal equipment for acquiring the positioning integrity result is effectively reduced, and the positioning performance of the terminal equipment is improved. In addition, the terminal equipment can directly utilize the information such as the measurement result obtained locally to calculate the positioning integrity result without reporting the information to the network side, so that the signaling overhead can be reduced.

It should be further noted that, the embodiment shown in fig. 3A above is described in an application scenario in which the positioning network architecture adopts a downlink positioning method. However, this embodiment is also applicable to an application scenario where the positioning network architecture adopts the uplink and downlink joint positioning method. Optionally, in this scenario, before S306, the LMF may further receive sixth information of the at least one network device, where the sixth message may further include: at least one network device measures at least one reference signal from a terminal device to obtain a measurement result, error information of the measurement result, error event information of the measurement result and the like; or after S307 at S306, the fourth message also carries the above. Thus, the LMF may also locate the terminal device according to the above when performing S306.

Embodiment III:

a communication method provided by the embodiment of the present application will be described below with reference to a flowchart of the communication method shown in fig. 4. The application scene of the method adopts an uplink positioning method for a positioning network architecture. In an embodiment of the present application, the LMF performs a positioning calculation process (i.e., an LMF-based positioning method) as a location calculation unit, and other devices (devices other than the location calculation unit) may calculate a positioning integrity result.

S401a-S402 are the same as S201a-S202 in the embodiment shown in fig. 2A, and the same steps may be referred to each other, and are not described herein.

S403: the terminal device transmits at least one reference signal.

S404: at least one network device participating in the positioning of the terminal device measures at least one reference signal from the terminal device, resulting in a measurement result.

S405: the at least one network device transmits third information to the LMF. The third information includes a measurement result obtained by the at least one network device performing measurement on the at least one reference signal from the terminal device. Wherein the third information is used for determining the location information of the terminal device. The LMF receives third information from at least one network device.

In this embodiment, the third information may further include other positioning assistance data that can be determined by the network device side, and is not limited to a measurement result obtained by at least one network device. The other positioning assistance data may be, for example, measurement information or assistance information at the network device side, and may include, for example, configuration information of the reference signal, etc.

Alternatively, the LMF may send a third message to the at least one network device through S405 a. The third message is for requesting third information. In this way, the at least one network device may send third information to the LMF after receiving the third message. Illustratively, S405a may be performed prior to S405.

In addition, it should be noted that in S405, each of the at least one network device may send third information to the LMF separately; or one of the at least one network device (e.g., a serving base station of the terminal device) may send the third information to the LMF after collecting the third information from the other network device, the present application is not limited in this regard.

In one embodiment, communication interactions between at least one network device and the LMF may be via NRPPa messages.

S406: and the LMF obtains the position information of the terminal equipment according to the measurement result in the third information.

Optionally, after the LMF obtains the location information of the terminal device, the location information may be reported to the location service initiator or the terminal device, so as to perform subsequent processing, and the specific process is not described herein.

Optionally, in this step, the LMF may locate the terminal device according to an existing location algorithm (for example, UL-AOA location method, UL-TDOA location method, etc.), and the specific process is not described herein.

S407: alternatively, the LMF may receive a fourth message from the at least one network device. The fourth information is used for determining a positioning integrity result of the terminal equipment.

the method comprises the steps of measuring at least one reference signal from a terminal device by at least one network device, obtaining a measurement result, error information of the measurement result, error event information of the measurement result, abnormal event information of the at least one network device, distribution geometric information of the at least one network device and effective time of fourth information.

Note that the above description of the content in the fourth information is by way of example, and is not limiting. In the embodiment of the present application, the fourth information may include positioning integrity auxiliary data that can be determined by the network device side.

Alternatively, the LMF may send a fourth message to the at least one network device through S407 a. The fourth message is for requesting fourth information. In this way, the at least one network device may send fourth information to the LMF after receiving the fourth message. For example, S407a may be performed before S407.

In addition, in the embodiment of the present application, S407 may be executed before S406, or may be executed simultaneously, or S407 and S405 may be combined into the same step (i.e., the content in the fourth information may be included in the third information).

In addition, it should be noted that in S407, each of the at least one network device may send fourth information to the LMF, respectively; or one of the at least one network device (e.g., a serving base station of the terminal device) may send fourth information to the LMF after collecting the fourth information from the other network device, the present application is not limited in this regard.

In one embodiment, communication interactions between at least one network device and the LMF may be via NRPPa messages. Illustratively, the fourth message in S407a may be an NRPPa message (e.g., TRP Information Request); the fourth information in S407 may be carried in an NRPPa message (e.g., TRP Information Response).

S408: the LMF transmits the first information. The first information is used for determining a positioning integrity result of the terminal equipment.

In a first embodiment, the first information includes at least one of the following:

position information of the terminal device, residual error of the position information, error information of the position information and effective time of the first information.

In the second embodiment, when the LMF obtains the fourth information through S407, the LMF may further transmit part or all of the third information and/or part or all of the fourth information included in the first information together. I.e. the first information may comprise at least one of the following:

the method comprises the steps that at least one network device measures at least one reference signal from a terminal device, measurement results obtained by the at least one network device, error information of the measurement results, error event information of the measurement results, abnormal event information of the at least one network device and distribution geometric information of the at least one network device.

In S408, the first information sent by the LMF may conform to the first embodiment and/or the second embodiment, which is not limited by the present application.

It should be noted that the above description of the content in the first information is given as an example and is not limiting. In the embodiment of the present application, the first information may include positioning integrity auxiliary data that can be obtained by the LMF and/or other positioning integrity auxiliary data provided by the LMF.

In this step, the LMF may send the first information to a location integrity calculation unit in the current location network architecture. Alternatively, the positioning integrity calculating unit may be any one of the at least one network device, the AMF, the terminal device, other terminal devices, etc., which is not limited by the present application. Wherein when the positioning integrity calculation unit is any one of the network devices, at least one of the network devices may not perform S407.

In this embodiment, the positioning integrity calculating unit is taken as an example of the terminal device, and the steps performed when the other devices are taken as the positioning integrity calculating unit may refer to the steps of the terminal device. In summary, the positioning integrity calculation unit may obtain other positioning integrity assistance data via the network side or otherwise, so that the positioning integrity result of the terminal device may be calculated. Other positioning integrity assistance data are positioning integrity assistance data that need to be provided by other devices in addition to the positioning integrity assistance data that the positioning integrity calculation unit is able to determine locally.

When the positioning integrity calculation unit is a terminal device, step S408 is to send first information to the terminal device by the LMF. The terminal device receives the first information from the LMF.

Alternatively, the terminal device may send the first message to the LMF through S408 a. The first message is for requesting first information. Thus, the LMF may send the first information to the terminal device after receiving the first message.

In one embodiment, the terminal device and the LMF may interact through LPP messages. Illustratively, the first message in S408a may be an LPP request assistance data message (e.g., LPP Request Assistance Data); the first information in S408 may be carried in an LPP request assistance data response message.

S409: optionally, the terminal device may also receive a second message. Wherein the second message is used to determine a positioning integrity result of the terminal device. Optionally, the second information includes at least one of the following:

at least one network device measures at least one reference signal from the terminal device to obtain a measurement result; error information of the measurement result, error event information of the measurement result, abnormal event information of the at least one network device, distribution geometry information of the at least one network device, validity time of the second information.

In one embodiment, the second message is sent by the at least one network device. For example, when the at least one network device does not perform S407, the at least one network device may transmit second information to the terminal device through S409.

It should be noted that the above description of the content in the second information is by way of example and not by way of limitation. In the embodiment of the present application, the second information may include positioning integrity auxiliary data that can be determined by the network device side, and other positioning auxiliary data (such as measurement information or auxiliary information of the network device side, which may include configuration information of a reference signal, for example).

Alternatively, the at least one network device may send the second message via a broadcast message. The broadcast message may be, for example, a posSIB. For example, the serving base station of the terminal device may broadcast a posSIB carrying the second information such that all terminal devices within the coverage area of the serving base station may receive the second information.

Alternatively, the terminal device may send a second message to the at least one network device through S409 a. The second message is for requesting second information. In this way, the at least one network device may send the second information to the terminal device after receiving the second message. For example, S409a may be performed before S409.

S410: the terminal device may determine a positioning integrity result of the terminal device based on at least one of the first information and the second information.

In one possible implementation, when the first information includes a valid time of the first information, then the terminal device may determine a positioning integrity result of the terminal device using the first information within the valid time of the first information. Similarly, when the second information includes the valid time of the second information, the terminal device may determine the positioning integrity result of the terminal device using the second information within the valid time of the second information. After the effective time of the first information expires, the terminal device may discard the first information; the terminal device may discard the second information when the validity time of the second information expires.

S411 is the same as S311 in the embodiment shown in fig. 3A, and the same steps may be referred to each other, which is not described herein.

In an embodiment, the LMF or the network device may also be used as a positioning integrity calculation unit, and calculate the positioning integrity result of the terminal device through the obtained various positioning integrity auxiliary data, which is not described herein. For example, the LMF may calculate the location integrity result of the terminal device according to at least one of the received third information and fourth information and at least one of the location information determined in S406, a residual of the location information, and error information of the location information. And then, the LMF or the network equipment executes a positioning integrity result reporting process.

It should be further noted that, the embodiment shown in fig. 4 above is described in an application scenario in which the positioning network architecture adopts an uplink positioning method. However, this embodiment is also applicable to an application scenario where the positioning network architecture adopts the uplink and downlink joint positioning method. Optionally, in this scenario, the LMF may further receive fifth information from the terminal device, where the fifth message may further include: a measurement result obtained by the terminal device measuring at least one reference signal from at least one network device, error information of the measurement result, error event information of the measurement result, and the like. Thus, the LMF may also locate the terminal device according to the above when performing S406.

In the above embodiments, the first information, the second information, the third information, and the fourth information may be transmitted through one or more messages, which is not limited by the present application. In addition, the explanation of the related concept may be referred to in the preamble for the explanation of the related explanation of the content contained in each information, and the explanation of the measurement result, the position information, the positioning integrity result, and the like. In addition, the method provided by the embodiment of the application can not limit the connection state of the radio resource control (radio resource control, RRC) of the terminal equipment, and the method can be suitable for the terminal equipment in the RRC connection state or the RRC non-connection state.

In addition, it should be noted that, each step in the foregoing embodiments may be performed by a corresponding device, or may be performed by a component such as a chip, a processor, or a chip system in the device, and the embodiment of the present application is not limited to this. The above embodiments are described only as examples to be executed by the respective apparatuses.

In the above embodiments, some steps may be selected and performed, or the order of steps in the drawings may be adjusted and performed, which is not limited to the present application. It should be understood that it is within the scope of the present application to perform some of the steps in the illustrations, adjust the order of the steps, or implement them in combination with each other.

It will be appreciated that, in order to implement the functions of the above embodiments, each device involved in the above embodiments includes a corresponding hardware structure and/or software module for performing each function. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application scenario and design constraints imposed on the solution.

It can be understood that the above network architecture and application scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and are not limited to the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of new services, the technical solution provided in the embodiments of the present application is equally applicable to similar technical problems.

It should be noted that, in the above embodiments, when information is transmitted between two terminal devices, the information may be implemented through a sidelink message interaction; when information is transmitted between two network devices, the information can be realized through Xn signaling interaction. When information transmission is performed between the terminal device and the network device, the information transmission can be realized through RRC signaling or air interface information. In summary, each information transmission and each message transmission involved in each above embodiment may be replaced by other messages according to actual needs.

Note that: the "step" in the embodiments of the present application is merely illustrative, and is used to better understand a performance method adopted by the embodiments, and does not essentially limit the implementation of the solution of the present application, for example: this "step" may also be understood as a "feature". In addition, the execution sequence of the scheme of the application is not limited in any way, and any operation such as step sequence change or step combination or step splitting which does not affect the implementation of the whole scheme is made on the basis, so that the formed new technical scheme is also within the scope of the disclosure of the application. For example: in the embodiment shown in fig. 2A, the execution order between step S205 and step S206, and the execution order between step S206 and step S207 are not limited, and the specific implementation of the scheme is not affected when the two exchange orders. Moreover, all "steps" appearing in the present application are applicable to the convention, and are collectively described herein, and when appearing again, they will not be described again.

Based on the same technical conception, the application also provides a communication device which is applied to the positioning network architecture shown in fig. 1. The communication device is used for realizing the communication method provided by the embodiment. Referring to fig. 5, a communication device 500 includes a communication unit 501 and a processing unit 502.

The communication unit 501 is configured to receive and transmit data. Optionally, the communication unit 501 may include a communication interface and/or a transceiver. For example, the communication device 500 may communicate with a network apparatus using a communication interface, and the communication device 500 may communicate with a terminal apparatus using a transceiver.

In one embodiment, the communication device 500 is applied to a terminal apparatus as shown in fig. 2A or fig. 2B. The processing unit 502 is configured to perform the following steps:

determining position information of the terminal equipment, wherein the position information is obtained by the terminal equipment according to a measurement result of at least one reference signal, and the at least one reference signal is from at least one network equipment;

transmitting, by the communication unit 501, first information, where the first information is used to determine a positioning integrity result of the terminal device, and the first information includes at least one of the following: the measurement result and the position information.

Optionally, the first information further includes at least one of the following:

Optionally, the error information of the measurement result includes at least one of:

Optionally, the error event information of the measurement result includes at least one of:

Optionally, the positioning integrity result comprises at least one of:

Optionally, the processing unit 502 is further configured to:

a first message is received by the communication unit 501, the first message being used to request the first information.

In one embodiment, the communication apparatus 500 is applied to a network device as shown in fig. 2A or fig. 2B. The processing unit 502 is configured to perform the following steps:

receiving first information from a terminal device through the communication unit 501; the first information comprises at least one of the following items: measuring results of at least one reference signal and position information of the terminal equipment; wherein the at least one reference signal is from at least one network device;

and determining a positioning integrity result of the terminal equipment according to the first information.

Optionally, the processing unit 502 is further configured to:

second information from the at least one network device is received by the communication unit 501, the second information being used for determining a positioning integrity result of the terminal device.

Optionally, the processing unit 502 is specifically configured to, when determining the positioning integrity result according to the first information:

and determining a positioning integrity result of the terminal equipment according to the first information and/or the second information.

Optionally, the second information includes at least one of the following:

Optionally, the abnormal event information of the at least one network device includes at least one of:

Optionally, the positioning integrity result comprises at least one of:

Optionally, the processing unit 502 is further configured to:

a second message is sent to the at least one network device via the communication unit 501, the second message being used to request the second information.

Optionally, the processing unit 502 is further configured to:

a first message is sent to the terminal device through the communication unit 501, where the first message is used to request the first information.

In one embodiment, the communication device 500 is applied to a terminal apparatus as shown in fig. 3A or fig. 3B. The processing unit 502 is configured to perform the following steps:

transmitting first information through the communication unit 501; the first information is used for determining the position information of the terminal equipment, wherein the first information comprises the measurement result of at least one reference signal, and the at least one reference signal is from at least one network equipment;

receiving, by the communication unit 501, second information, where the second information is used to determine a positioning integrity result of the terminal device;

And determining a positioning integrity result of the terminal equipment according to at least one of the second information and the measurement result.

Optionally, the second information includes at least one of:

Optionally, the processing unit 502 is further configured to:

receiving third information through the communication unit 501, where the third information is used to determine a positioning integrity result of the terminal device; wherein the third information includes at least one of the following:

Optionally, the processing unit 502 is specifically configured to, when determining the positioning integrity result of the terminal device according to at least one of the second information and the measurement result:

and determining a positioning integrity result of the terminal equipment according to at least one of the second information, the third information and the measurement result.

Optionally, the positioning integrity result comprises at least one of:

Optionally, the processing unit 502 is further configured to:

a second message is sent through the communication unit 501, the second message being used to request the second information.

Optionally, the processing unit 502 is further configured to:

a third message is sent via the communication unit 501, the third message being used to request the third information.

In one embodiment, the communication apparatus 500 is applied to a network device as shown in fig. 3A or fig. 3B. The processing unit 502 is configured to perform the following steps:

receiving first information from a terminal device through the communication unit 501; wherein the first information includes a measurement result of at least one reference signal, and the at least one reference signal is from at least one network device;

determining the position information of the terminal equipment according to the first information;

and sending second information to the terminal equipment through the communication unit 501, wherein the second information is used for determining a positioning integrity result of the terminal equipment.

Optionally, the second information includes at least one of the following:

Optionally, the processing unit 502 is further configured to:

fourth information from the at least one network device is received by the communication unit 501, the fourth information being used for determining a positioning integrity result of the terminal device.

Optionally, the second information includes part or all of the fourth information.

Optionally, the fourth information includes at least one of the following:

Optionally, the positioning integrity result comprises at least one of:

Optionally, the processing unit 502 is further configured to:

a fourth message is sent to the at least one network device via the communication unit 501, the fourth message being used to request the fourth information.

Optionally, the processing unit 502 is further configured to:

a second message from the terminal device is received by the communication unit 501, the second message being used to request the second information.

In one embodiment, the communication apparatus 500 is applied to a terminal device as shown in fig. 4. The processing unit 502 is configured to perform the following steps:

Receiving first information through the communication unit 501;

Optionally, the first information includes at least one of:

wherein the at least one reference signal is sent by the terminal device.

Optionally, the processing unit 502 is further configured to:

receiving, by the communication unit 501, second information, where the second information is used to determine a positioning integrity result of the terminal device; wherein the second information includes at least one of the following: a measurement of at least one reference signal; error information of the measurement result, error event information of the measurement result, abnormal event information of the at least one network device, distribution geometry information of the at least one network device, and validity time of the second information;

The at least one reference signal is sent by the terminal device.

Optionally, determining a positioning integrity result according to the first information includes:

and determining a positioning integrity result of the terminal equipment according to at least one of the first information and the second information.

Optionally, the positioning integrity result comprises at least one of:

Optionally, the processing unit 502 is further configured to:

a first message is sent through the communication unit 501, the first message being used to request the first information.

Optionally, the processing unit 502 is further configured to:

In one embodiment, the communication apparatus 500 is applied to a network device as shown in fig. 4. The processing unit 502 is configured to perform the following steps:

receiving, by the communication unit 501, third information from at least one network device; wherein the third information includes a measurement result of at least one reference signal, and the at least one reference signal is sent by the terminal device;

determining the position information of the terminal equipment according to the third information;

first information is sent via the communication unit 501, which is used to determine the positioning integrity result of the terminal device.

Optionally, the first information includes at least one of the following:

Optionally, the method further comprises:

fourth information from the at least one network device is received, the fourth information being used to determine a positioning integrity result of the terminal device.

Optionally, part or all of the fourth information is further included in the first information.

Optionally, the fourth information includes at least one of the following:

Optionally, the positioning integrity result comprises at least one of:

Optionally, the processing unit 502 is further configured to:

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

It should be noted that, in the embodiment of the present application, the division of the modules is merely schematic, and there may be another division manner in actual implementation, and in addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or may exist separately and physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Based on the above embodiments, the present application further provides a communication device, where the communication device is applied to the positioning network architecture shown in fig. 1. The communication apparatus is used for implementing the communication method provided in the above embodiment, and has the function of the communication device 500 provided in the above embodiment. Referring to fig. 6, the communication device 600 includes: a communication module 601 and a processor 602. Optionally, the communication device 600 further comprises a memory 603. Wherein the communication module 601, the processor 602, and the memory 603 are connected to each other.

Optionally, the communication module 601, the processor 602, and the memory 603 are connected to each other through a bus 604. The bus 604 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 6, but not only one bus or one type of bus.

The communication module 601 is configured to receive and send data, and implement communication with other devices in the positioning network architecture. Optionally, the communication module 601 may include a communication interface and a transceiver. For example, the communication device 600 may communicate with a network device using a communication interface, and the communication device 600 may communicate with a terminal device using a transceiver.

The function of the processor 602 may refer to the description in the above embodiments, and will not be described herein. The processor 602 may be a central processing unit (central processing unit, CPU), a network processor (network processor, NP) or a combination of CPU and NP, among others. The processor 602 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (programmable logic device, PLD), or a combination thereof. The PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field-programmable gate array (field-programmable gate array, FPGA), general-purpose array logic (generic array logic, GAL), or any combination thereof. The processor 602 may be implemented by hardware when implementing the above functions, or may be implemented by executing corresponding software by hardware.

The memory 603 is used for storing program instructions and the like. In particular, the program instructions may comprise program code comprising computer-operating instructions. The memory 603 may include random access memory (random access memory, RAM) and may also include non-volatile memory (non-volatile memory), such as at least one disk memory. The processor 602 executes the program instructions stored in the memory 603 to implement the functions described above, thereby implementing the methods provided in the above embodiments.

Based on the above embodiments, the present application also provides a computer program, which when run on a computer causes the computer to perform the method provided by the above embodiments.

Based on the above embodiments, the present application also provides a computer-readable storage medium having stored therein a computer program which, when run on a computer, causes the computer to perform the method provided by the above embodiments.

Wherein a storage medium may be any available medium that can be accessed by a computer. Taking this as an example but not limited to: the computer readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

Based on the above embodiments, the present application further provides a chip, where the chip is configured to read a computer program stored in a memory, and implement the method provided in the above embodiments.

Based on the above embodiments, the embodiments of the present application provide a chip system, which includes a processor for supporting a computer device to implement the functions related to the terminal device in the above embodiments. In one possible design, the chip system further includes a memory for storing programs and data necessary for the computer device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In summary, the embodiment of the application provides a communication method and a communication device. The method can decouple the calculation position information and the calculation positioning integrity result to reduce the calculation complexity of the position calculation unit, ensure the accuracy and timeliness of the positioning integrity result, and finally realize the effect of optimizing the positioning integrity result. In summary, the method can implement a new positioning integrity calculation mechanism.

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

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

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

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

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A communication method applied to a terminal device, comprising:

transmitting first information, wherein the first information is used for determining a positioning integrity result of the terminal equipment, and the first information comprises at least one of the following items: the measurement result and the position information.

2. The method of claim 1, wherein the first information further comprises at least one of:

3. The method of claim 2, wherein the error information of the measurement result comprises at least one of:

4. A method according to claim 2 or 3, wherein the error event information of the measurement result comprises at least one of:

5. The method of any of claims 1-4, wherein the positioning integrity result comprises at least one of:

6. A communication method applied to a network device, comprising:

receiving first information from a terminal device; the first information comprises at least one of the following items: measuring results of at least one reference signal and position information of the terminal equipment; wherein the at least one reference signal is from at least one network device;

7. The method of claim 6, wherein the first information further comprises at least one of:

8. The method of claim 7, wherein the error information of the measurement comprises at least one of:

9. The method of claim 7 or 8, wherein the error event information of the measurement result comprises at least one of:

10. The method of any one of claims 6-9, wherein the method further comprises:

and receiving second information from the at least one network device, wherein the second information is used for determining a positioning integrity result of the terminal device.

11. The method of claim 10, wherein determining a positioning integrity result based on the first information comprises:

12. The method according to claim 10 or 11, wherein the second information comprises at least one of:

13. The method of claim 12, wherein the anomaly event information for the at least one network device comprises at least one of:

14. The method of any of claims 6-13, wherein the positioning integrity result comprises at least one of:

15. A communication method applied to a terminal device, comprising:

transmitting first information; the first information is used for determining the position information of the terminal equipment, wherein the first information comprises the measurement result of at least one reference signal, and the at least one reference signal is from at least one network equipment;

receiving second information, wherein the second information is used for determining a positioning integrity result of the terminal equipment;

16. The method of claim 15, wherein the second information comprises at least one of:

17. The method of claim 15 or 16, wherein the second information comprises at least one of:

18. The method of claim 17, wherein the anomaly event information for the at least one network device comprises at least one of:

19. The method of any one of claims 15-18, wherein the method further comprises:

receiving third information, wherein the third information is used for determining a positioning integrity result of the terminal equipment; wherein the third information includes at least one of the following:

20. The method of claim 19, wherein determining a location integrity result for the terminal device based on at least one of the second information and the measurement result comprises:

21. The method of claim 19 or 20, wherein the anomaly event information for the at least one network device includes at least one of:

22. The method of any of claims 15-21, wherein the positioning integrity result comprises at least one of:

23. A communication method applied to a network device, comprising:

Receiving first information from a terminal device; wherein the first information includes a measurement result of at least one reference signal, and the at least one reference signal is from at least one network device;

and sending second information to the terminal equipment, wherein the second information is used for determining a positioning integrity result of the terminal equipment.

24. The method of claim 23, wherein the second information comprises at least one of:

25. The method of claim 23 or 24, wherein the method further comprises:

26. The method of claim 25, wherein the second information comprises part or all of the fourth information.

27. The method according to claim 25 or 26, wherein the fourth information comprises at least one of:

28. The method of claim 27, wherein the anomaly event information for the at least one network device comprises at least one of:

29. The method of any of claims 23-28, wherein the positioning integrity result comprises at least one of:

30. A communication device, comprising:

a communication unit for receiving and transmitting data;

a processing unit for performing the method of any of claims 1-29.

31. A communication device, comprising:

the communication module is used for receiving and sending data;

a memory for storing program instructions and data;

a processor for reading program instructions and data in said memory, implementing the method of any of claims 1-29 by said communication module.

32. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when run on a computer, causes the computer to perform the method of any of claims 1-29.

33. A chip, characterized in that the chip is coupled to a memory, the chip reading a computer program stored in the memory, performing the method of any of claims 1-29.