CN115243312A

CN115243312A - Positioning information reporting method, device and communication system

Info

Publication number: CN115243312A
Application number: CN202110442444.0A
Authority: CN
Inventors: 李成; 黄甦; 高鑫
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-10-25
Also published as: WO2022222772A1

Abstract

The application discloses a positioning information reporting method, a device and a communication system, and relates to the technical field of communication. The terminal equipment receives positioning reference signals from one or more access network equipment; and then, based on the positioning reference signal, determining one or more positioning measurement results and line of sight (LOS) state information respectively corresponding to the one or more positioning measurement results, namely positioning measurement information, and sending the positioning measurement information to the service access network equipment, and the service access network equipment forwards the positioning measurement information to the positioning server. The LOS state information fed back by the terminal equipment can indicate whether the positioning measurement result is LOS or non-line-of-sight (NLOS), after the positioning server acquires the positioning measurement result, the positioning server can learn which positioning measurement result is reliable according to the LOS state information corresponding to the positioning measurement result, and under the condition that the positioning server definitely knows which positioning measurement result is reliable, the position of the terminal equipment can be determined more accurately.

Description

Positioning information reporting method, device and communication system

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a positioning information reporting method, a device and a communication system.

Background

High-precision positioning is one of the key technologies of the fifth generation (5th generation, 5g) new wireless (NR) mobile communication network. The position of the terminal equipment can be accurately identified through cellular positioning, so that positioning-based services such as navigation, goods distribution and the like are provided for users. In the cellular positioning, the linear distances between a plurality of 5G base stations (gNodeB, gNB) and the terminal equipment are measured, so that the geometric position relationship between the 5G base stations and the terminal equipment is obtained, and then the position of the terminal equipment is calculated according to the known gNB position.

Terminal device location relies on the measurement of the line of sight (LOS), i.e. the linear distance between the terminal device and the gNB, between the terminal device and the gNB. However, in practical applications of production life, because the locating signal is reflected by the presence of an obstruction (e.g., a tree, a building, a wall, etc.), the signal propagation distance measured by the gNB may be a non-line of sight (NLOS) propagation distance. When the terminal equipment is positioned, the positioning accuracy of the terminal equipment is poor due to the existence of the NLOS path.

Disclosure of Invention

The application provides a positioning information reporting method, a device and a communication system, so that a positioning server can refer to the channel condition between a terminal device and an access network device, and more accurately position the terminal device.

In a first aspect, the present application provides a method for reporting positioning information, where the method for reporting positioning information may be executed by a terminal device, and the terminal device may be understood as a positioning tag, a vehicle-mounted device, a mobile phone, and the like, which is not limited in this application. When the method for reporting the positioning information is executed, the terminal equipment can receive the positioning reference signals from one or more access network equipment; and sending the positioning measurement information to the service access network equipment; the positioning measurement information includes: the terminal device determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results.

It should be noted that, the service access network device may provide communication services for the terminal device, such as: the terminal device may receive the message from the other terminal device through the service access network device, or the terminal device may forward the message through the service access network device. In the application, the service access network device may also be one of the access network devices, and the service access network device may also send a positioning reference signal to the terminal device; or the service access network device and the access network device are independent from each other, the service access network device does not send a positioning reference signal to the terminal device, and only receives positioning measurement information from the terminal device, and the method is applicable to the scheme of the application no matter which case the service access network device is. It should be further noted that the access network device or the serving access network device may be a base station, or may also be a Transmission Reception Point (TRP), which is not specifically limited herein.

In addition, the terminal device may estimate a channel between the terminal device and any access network device by using a maximum likelihood estimation method or a multiple signal classification algorithm (multiple signal classification algorithm, MUSIC), and determine a positioning measurement result. Of course, in practical applications, the positioning measurement result may be determined in other manners, and the present application is not limited in particular, and is only exemplified by the above-mentioned method or algorithm.

It is further noted that a positioning measurement result is determined by the terminal device according to a positioning reference signal sent by an access network device, and the positioning measurement result corresponds to LOS status information, which may indicate whether the positioning measurement result is LOS or NLOS. The positioning measurement result may be indicated by a time of arrival (TOA) and/or an angle of arrival (TOA), or may be indicated by other indicators, which is not specifically limited herein. In addition, the terminal device may estimate a channel between the terminal device and the access network device by using a consistency analysis algorithm (that is, after receiving the positioning reference signal, the fluctuation degree of the reference signal determines LOS status information). In addition, the LOS status information may be determined by other methods, which is not necessarily indicated herein, and the methods for determining the positioning measurement result and the LOS status information based on the positioning reference signal are all applicable to the present application.

In the embodiment of the application, the LOS state information fed back by the terminal equipment in the positioning process can indicate whether the positioning measurement result is LOS or NLOS, and the positioning server can learn which positioning measurement result is reliable according to the LOS state information corresponding to the positioning measurement result in the positioning process, so that the position of the terminal equipment can be determined more accurately.

In an optional implementation manner, the positioning measurement result is determined by the terminal device resolving the positioning reference signal between the terminal device and the access network device through a first algorithm; and the LOS state information is determined by the terminal equipment through resolving the channel between the terminal equipment and the access network equipment by a second algorithm.

It should be noted that the terminal device may determine the positioning measurement result between the terminal device and the access network device through the first algorithm. The first algorithm may be a maximum likelihood estimation algorithm, a MUSIC algorithm, or the like, and the present application is not limited in particular herein. The maximum likelihood estimation algorithm performs correlation operation on the locally generated positioning reference signal and the received positioning reference signal, the time corresponding to all peak points larger than the threshold is the arrival time of the positioning reference signal passing through different paths, and the arrival time of the first peak point is the TOA of the LOS path. The MUSIC algorithm is a method based on matrix characteristic space decomposition, an observed autocorrelation matrix of a reference signal is decomposed into a signal subspace and a noise subspace, a space spectrum is constructed, and a TOA value corresponding to a spectrum peak of the space spectrum is a measured value.

The terminal device may perform LOS status detection on a channel between the terminal device and the access network device through a second algorithm. The second algorithm may be a consistency analysis algorithm, and may also be an Artificial Intelligence (AI) -based algorithm. The consistency analysis algorithm determines the LOS status by detecting the signal strength fluctuation condition of the terminal equipment under different antenna units, for example, if the signal strength fluctuation of the terminal equipment is small, the positioning measurement information is considered as LOS; and if the signal intensity fluctuation of the terminal equipment is large, the positioning measurement information is considered to be NLOS. The AI-based algorithm is that the neural network is used for training a neural network model based on historical channel data between the terminal and each access network, and when LOS is judged, the estimated channel coefficient or the received reference signal is directly input into the neural network model, and an LOS detection result is output.

In an optional implementation manner, the LOS status information is multiple, the multiple positioning measurement results are sorted according to the corresponding LOS probabilities, and the LOS status information corresponding to one or more positioning measurement results indicated by the sorting is indicated by the sorting. The positioning measurement results are sequenced according to the corresponding LOS probabilities, the relative relation of the LOS probabilities among the measurement quantities can be implicitly indicated, extra LOS state information bits (namely the number of information bits occupied by non-stealth indication) can be saved, and the purposes of indicating the weight of the measurement quantities of the positioning server and improving the positioning accuracy are achieved.

In addition, when receiving the positioning reference signals from the multiple access network devices, the terminal device may determine multiple positioning measurement results based on the multiple positioning reference signals, where LOS probabilities corresponding to different positioning measurement results are different, and the terminal device may agree in advance with the serving access network device to report only a few positioning measurement results with the highest LOS probability ranking.

In an optional implementation, the LOS status information includes: LOS judgment results or LOS probabilities of channels between the terminal equipment and each access network equipment.

It should be noted that the LOS status information is only an exemplary illustration, and the LOS status information may indicate whether a channel between the terminal device and the access network device is LOS or NLOS, and in practical applications, the LOS status information may also be referred to as LOS result, LOS status, and the like, and the LOS status information may also include LOS channel indication information of other names, which is not specifically limited herein. The LOS quality or the LOS confidence is a metric index of a determined channel after LOS detection is performed on the channel based on a reference signal, the higher the LOS quality or the LOS confidence is, the higher the LOS probability is, the more likely the channel is to be LOS, and the lower the LOS quality or the LOS confidence is, the smaller the LOS probability is, the more likely the channel is to be an NLOS channel. In addition, the LOS status information mentioned above is not only an LOS condition of a channel between the terminal device and the access network device, but also an NLOS condition of a channel between the terminal device and the access network device, that is, the LOS status information may be an NLOS decision result or an NLOS probability of the channel between the terminal device and the access network device, and the like, and the present application is not particularly limited herein.

The LOS probability is obtained by performing LOS detection calculation on the channel between the terminal device and the access network device through an LOS detection algorithm (such as a consistency analysis algorithm), and reporting the LOS probability (which can be reported after quantifying the LOS probability) can indicate channel LOS status information, which is beneficial to improving positioning accuracy. The LOS decision is made by matching the LOS probability with a certain threshold value P _LOS Obtained by comparing the LOS/NLOS decision of the channel, i.e. when the LOS probability is greater than or equal to P _LOS If the bit is 1, the channel between the terminal equipment and the access network equipment is determined to be an LOS channel. When LOS probability is lower than P _LOS And judging as an NLOS channel, if the bit is 0, indicating that the channel between the terminal equipment and the access network equipment is the NLOS channel. Reporting the LOS judgment result, the bit overhead reported by the physical layer can be effectively reduced, the load of the system is reduced, and the most basic LOS state of the current channel of the positioning server is indicated. The LOS confidence is similar to the LOS probability, and is a measurement index of the current LOS channel determined after LOS detection is performed on the channel based on the reference signal, the higher the LOS confidence is, the more likely the channel is LOS, and the lower the LOS confidence is, the more likely the channel is NLOS. LOS quality is a measurement index of the current LOS channel determined after LOS detection is carried out on the channel based on a reference signal, the higher the quality is, the higher the LOS probability is, the more likely the channel is the LOS channel, and the lower the quality is, the lower the LOS probability is, the more likely the channel is the NLOS channel. The present application is only illustrative and not limited to the determination of LOS status information.

In an alternative embodiment, the LOS status information includes: quality parameters of channels between the terminal equipment and each access network equipment; the quality parameters include one or more of: channel gain, variance, and standard deviation.

It should be noted that the quality parameter may feed back a channel condition between the terminal device and the access network device, and may indirectly feed back an LOS status, such as a channel gain, a variance, and a standard deviation, where the channel gain refers to a result obtained by dividing the power of the received reference signal by the transmission power of the reference signal. The variance refers to the variance of the current channel coefficient estimated based on the reference signal. The standard deviation refers to the positive square root of the channel coefficient variance. If the quality parameter between the terminal device and the access network device is the channel gain, if the value of the channel gain exceeds the threshold value of the channel gain, it can be determined that the quality of the channel is good, and only in the LOS channel state, the channel gain can exceed the threshold value, so that it can be determined that the channel between the terminal device and the access network device is the LOS. The present application only schematically describes the quality parameters as channel gain, variance and standard deviation, but in practical applications, it is not limited to which parameters are specifically defined.

In an optional implementation manner, the terminal device may send the location configuration request information to the location server; receiving positioning reference signal configuration information and LOS detection configuration information from a positioning server; the LOS detection configuration information includes one or more of: LOS detection algorithm, access network equipment indication information of LOS detection and location reference signal indication information of LOS detection.

It should be noted that the configuration information of the positioning reference signal includes time domain resource configuration information of the positioning reference signal, that is, in which time domain resource the positioning reference signal is sent, so that the terminal device can receive the positioning reference signal in the corresponding time domain resource. The LOS detection configuration information can indicate the algorithm adopted by the terminal equipment to perform LOS detection, detect the channels between the access network equipment and the terminal equipment, and specifically report information and the like. The present application is described only by way of example, and it is not specifically limited which information is specifically included in the LOS detection configuration information, for example, an algorithm used in LOS detection may include a consistency analysis algorithm, a detection algorithm based on a neural network model, and the like, and the location server may instruct the terminal device to perform LOS detection by using the consistency analysis algorithm through the LOS detection configuration information. The indication information of the access network equipment for the LOS detection can be indicated through the identification of the access network equipment, and the indication information of the positioning reference signal for the LOS detection can be indicated through the identification of the reference signal. The terminal device specifically detects which channels of the access network device, and may be determined according to the identifier of the access network device in the LOS detection configuration information, and may also be determined according to the identifier of the reference signal, which is not specifically limited herein.

In an alternative embodiment, the terminal device may receive the indication information from the serving access network device; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

It should be noted that the indication information may be transmitted through downlink control information, or a Media Access Control (MAC) layer, or a Radio Resource Control (RRC) layer.

In an optional implementation manner, a first LOS detection trigger state is received from a positioning server, and LOS detection configuration information and LOS detection trigger state have a corresponding relation; determining first LOS detection configuration information corresponding to the first LOS detection trigger state according to the state value and the corresponding relation of the LOS detection trigger state; and detecting the positioning reference signals of one or more access network devices through the first LOS detection configuration information, and determining LOS state information corresponding to one or more positioning measurement results respectively.

It should be noted that the LOS detection configuration information may include multiple types, and the LOS detection trigger state may enable the terminal device to explicitly know which type of LOS detection configuration information is specifically used to detect the channel between the terminal device and the access network device, and it should be further noted that the terminal device may detect all channels between the terminal device and the access network device according to the first LOS detection configuration information, or may detect only a channel between a part of the terminal device and the access network device according to the first LOS detection configuration information, which is not specifically limited herein.

In an optional implementation manner, the terminal device sends LOS detection capability information of the terminal device to the positioning server; the LOS detection capability information includes one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum channel number of the terminal equipment supporting LOS detection at the single frequency point or the multiple frequency points, the LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

It should be noted that the terminal device may actively send the LOS detection capability information to the location server, or may send the LOS detection capability information to the location server when the location server sends a request to the terminal device, which is not specifically limited herein.

In a second aspect, the present application provides a method for reporting positioning information, where the method may be performed by a service access network device, and the service access network device may receive positioning measurement information from a terminal device; the positioning measurement information includes: the terminal equipment determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results; and sending the positioning measurement information to a positioning server.

In an optional implementation manner, the LOS status information includes a plurality of LOS status information, the plurality of positioning measurement results are sorted according to corresponding LOS probabilities, and LOS status information corresponding to one or more positioning measurement results indicated by the sorting is indicated by the sorting. In an alternative embodiment, the LOS status information includes: LOS judgment results or LOS probabilities of channels between the terminal equipment and each access network equipment; .

In an alternative embodiment, the serving access network device may receive the indication information from the positioning server; and sending the indication information to the terminal equipment; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

In a third aspect, an embodiment of the present application provides a method for reporting positioning information, where the method may be performed by a positioning server, where the positioning server receives positioning measurement information from a serving access network device, where the positioning measurement information includes: the terminal equipment determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results; and selecting one or more positioning measurement results to determine the position information of the terminal equipment according to the LOS state information in the positioning measurement information.

It should be noted that the location server may select that the LOS status information is the location measurement result of LOS, and resolve the location information of the terminal device. However, in actual application, since there may be a case of misjudgment in the determination of LOS status information, the location server may calculate the location information of the terminal device by weighting different measurement quantities according to the LOS probability to avoid such a case of misjudgment of LOS, for example, the LOS probability corresponding to the location measurement result 1 is 0.1, the LOS probability corresponding to the location measurement result 2 is 0.9, and when calculating the location of the terminal device, the location may be determined by f (weight value 0.1 corresponding to the measurement result 1+ weight value 0.9 corresponding to the measurement result 2), where f is a terminal calculation function.

In addition, the positioning server may also select a part of the measurement quantity to perform position resolution of the positioning terminal according to the LOS probability, where the LOS probability corresponding to the positioning measurement result 1 is 0.3, the LOS probability corresponding to the positioning measurement result 2 is 0.9, the LOS probability corresponding to the positioning measurement result 3 is 0.8, and the LOS probability corresponding to the positioning measurement result 4 is 0.9. When the positioning server resolves the position of the terminal equipment, the positioning server can select the measurement result 2, the measurement result 3 and the measurement result 4 with the LOS probability larger than 0.8, and the position of the terminal equipment is resolved through a terminal resolving function.

In an alternative embodiment, the location server may receive location configuration request information from the terminal device; sending positioning reference signal configuration information and LOS detection configuration information to terminal equipment; the LOS detection configuration information includes one or more of: LOS detection algorithm, LOS detection access network equipment indication information and LOS detection positioning reference signal indication information.

In an optional implementation manner, the location server may further send a first LOS detection trigger state to the terminal device, where there is a correspondence between the LOS detection configuration information and the LOS detection trigger state, so that the terminal device determines, according to the first LOS detection trigger state and the correspondence, first LOS detection configuration information corresponding to the first LOS detection trigger state; and detecting the positioning reference signals of one or more access network devices through the first LOS detection configuration information, and determining LOS state information corresponding to one or more positioning measurement results respectively.

In an alternative embodiment, the location server receives location measurement information from the serving access network device; the positioning measurement information includes: the terminal device determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results.

In an optional implementation manner, the LOS status information includes a plurality of LOS status information, the plurality of positioning measurement results are sorted according to corresponding LOS probabilities, and LOS status information corresponding to one or more positioning measurement results indicated by the sorting is indicated by the sorting. In an alternative embodiment, the LOS status information includes: LOS judgment results or LOS probabilities of channels between the terminal equipment and each access network equipment.

In an alternative embodiment, the LOS status information includes: quality parameters of channels between the terminal equipment and each access network equipment; the quality parameters include one or more of the following: channel gain, variance, and standard deviation.

In an alternative embodiment, the location server receives LOS detection capability information from the terminal device; the LOS detection capability information includes one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels of LOS detection supported by the terminal equipment at the single frequency point or the multiple frequency points, LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

In a fourth aspect, the present application provides a terminal device, comprising: a receiving unit, configured to receive positioning reference signals from one or more access network devices; a sending unit, configured to send positioning measurement information to a service access network device; the positioning measurement information includes: the terminal device determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results.

In an optional implementation manner, the LOS status information is multiple, the multiple positioning measurement results are sorted according to the corresponding LOS probabilities, and LOS status information corresponding to one or multiple positioning measurement results is indicated by sorting. In an alternative embodiment, the LOS status information includes: LOS judgment results or LOS probability of channels between the terminal equipment and each access network equipment.

In an optional implementation manner, the sending unit is further configured to send the location configuration request information to the location server; the receiving unit is also used for receiving positioning reference signal configuration information and LOS detection configuration information from the positioning server; the LOS detection configuration information includes one or more of: LOS detection algorithm, LOS detection access network equipment indication information and LOS detection positioning reference signal indication information.

In an optional implementation manner, the receiving unit is further configured to receive a first LOS detection trigger state from the location server, where there is a correspondence between LOS detection configuration information and the LOS detection trigger state; determining first LOS detection configuration information corresponding to the first LOS detection trigger state according to the first LOS detection trigger state and the corresponding relation; and detecting the positioning reference signals of one or more access network devices through the first LOS detection configuration information, and determining LOS state information corresponding to one or more positioning measurement results respectively.

In an optional implementation manner, the receiving unit is further configured to receive indication information from the serving access network device; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

In an optional implementation manner, the sending unit is further configured to send LOS detection capability information of the terminal device to the location server; the LOS detection capability information includes one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels of LOS detection supported by the terminal equipment at the single frequency point or the multiple frequency points, an LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

In a fifth aspect, the present application provides a service access network device, including: a receiving unit, configured to receive positioning measurement information from a terminal device; the positioning measurement information includes: the terminal equipment determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results; and the sending unit is used for sending the positioning measurement information to the positioning server.

In an optional implementation manner, the LOS status information is multiple, the multiple positioning measurement results are sorted according to the corresponding LOS probabilities, and LOS status information corresponding to one or multiple positioning measurement results is indicated by sorting. In an alternative embodiment, the LOS status information includes: LOS judgment results or LOS probabilities of channels between the terminal equipment and each access network equipment.

In an optional embodiment, the receiving unit is further configured to receive indication information from the positioning server; the sending unit is also used for sending the indication information to the terminal equipment; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

In a sixth aspect, the present application provides a positioning server, comprising: the receiving unit is used for determining first LOS detection configuration information corresponding to the first LOS detection trigger state according to the first LOS detection trigger state and the corresponding relation; the processing unit is used for detecting one or more positioning reference signals through the first LOS detection configuration information and determining LOS state information corresponding to one or more positioning measurement results respectively.

In an optional implementation manner, the receiving unit is configured to receive location configuration request information from the terminal device; the sending unit is used for sending the positioning reference signal configuration information and the LOS detection configuration information to the terminal equipment; the LOS detection configuration information includes one or more of: LOS detection algorithm, access network equipment indication information of LOS detection and location reference signal indication information of LOS detection.

In an optional implementation manner, the sending unit is further configured to send a first LOS detection trigger state to the terminal device, where there is a correspondence between the LOS detection configuration information and the LOS detection trigger state, so that the terminal device determines, according to the first LOS detection trigger state and the correspondence, first LOS detection configuration information corresponding to the first LOS detection trigger state; and the processing unit is used for detecting the positioning reference signals of one or more access network devices through the first LOS detection configuration information and determining LOS state information corresponding to one or more positioning measurement results respectively.

In an optional embodiment, the receiving unit is configured to receive positioning measurement information from a serving access network device; the positioning measurement information includes: the terminal device determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results.

In an optional embodiment, the receiving unit is further configured to receive positioning measurement information from the serving access network device; the positioning measurement information includes: the terminal device determines one or more positioning measurement results based on the positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results.

In an optional implementation, the LOS status information includes a plurality of LOS status information, the plurality of positioning measurement results are sorted according to corresponding LOS probabilities, and the LOS status information is indicated through the sorting.

In an alternative embodiment, the LOS status information includes: LOS judgment results or LOS probabilities of channels between the terminal equipment and each access network equipment.

In an optional implementation, the receiving unit is further configured to receive LOS detection capability information from the terminal device; the LOS detection capability information includes one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels of LOS detection supported by the terminal equipment at the single frequency point or the multiple frequency points, an LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

In a seventh aspect, the present application provides a communication system, including: a service access network device and a location server;

the service access network equipment can forward the positioning measurement information to a positioning server, wherein the positioning measurement information comprises: the method comprises the steps that the terminal equipment determines one or more positioning measurement results based on a positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results; the location server may select one or more location measurement results to determine location information of the terminal device according to LOS status information in the location measurement information.

In an eighth aspect, the present application provides a terminal device comprising at least one processor, which when executed by the apparatus executes the computer program or instructions stored in the memory, to cause the terminal device to perform the method according to the first aspect or embodiments of the first aspect. The memory may be located in the processor, or may be implemented by a chip that is independent from the processor, and the application is not limited in this respect.

In a ninth aspect, the present application provides a service access network device, comprising at least one processor; the processor executes the computer program or instructions stored by the memory when the apparatus is run to cause the serving access network device to perform a method as described above in the second aspect or embodiments of the second aspect. The memory may be located in the processor, or may be implemented by a chip independent from the processor, and the application is not limited in this respect.

In a tenth aspect, the present application provides a positioning server comprising at least one processor; the memory is for storing a computer program or instructions stored by the memory which, when run by the apparatus, are executable by the processor to cause the positioning server to perform the method as described above in the third aspect or embodiments of the third aspect. The memory may be located in the processor, or may be implemented by a chip that is independent from the processor, and the application is not limited in this respect.

In an eleventh aspect, the present application further provides a computer readable storage medium having computer readable instructions stored thereon which, when run on a computer, cause the computer to perform a method as in the first aspect or any one of the possible designs of the first aspect, or the second aspect or any one of the possible designs of the second aspect, or the third aspect or any one of the possible designs of the third aspect.

In a twelfth aspect, the present application provides a computer program product comprising a computer program or instructions which, when run on a computer, causes the computer to perform the method of the first aspect or embodiments of the first aspect described above, or the method in any one of the possible designs of the second aspect or the second aspect, or the method in any one of the possible designs of the third aspect or the third aspect.

In a thirteenth aspect, the present application provides a chip system, which includes a processor and may further include a memory, and is configured to implement the method in any one of the possible designs of the first aspect or the first aspect, or the method in any one of the possible designs of the second aspect or the second aspect, or the method in any one of the possible designs of the third aspect or the third aspect. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a fourteenth aspect, the present application provides a communication system, the system comprising a terminal device, an access network device and a positioning server, the communication system being configured to perform the method in any one of the above-mentioned first aspect or first possible design, or the method in any one of the second aspect or second possible design, or the method in any one of the third aspect or third possible design.

For the technical effects that can be achieved in the second aspect to the fourteenth aspect, please refer to the description of the technical effects that can be achieved by the corresponding possible design solutions in the first aspect, and the details are not repeated herein.

Drawings

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

FIG. 2 is a schematic diagram illustrating a positioning scenario provided by an embodiment of the present application;

fig. 3 is a schematic flow chart illustrating a method for reporting positioning information according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a method for reporting positioning information according to an embodiment of the present application;

fig. 5 is a flowchart illustrating a method for reporting positioning information according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 7 shows a schematic structural diagram of a communication device provided in an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings. The particular methods of operation in the method embodiments may also be applied to apparatus embodiments or system embodiments. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specified.

Fig. 1 exemplarily provides a schematic diagram of a positioning system architecture, and related network elements/modules mainly include a radio access network (NG-RAN), a terminal, and a core network.

The core network includes a Location Management Function (LMF) and a mobility management function (AMF). The location server, LMF, is connected to the AMF, which is connected to the LMF via an NL1 interface. The LMF is responsible for supporting different types of location services with respect to the terminal, including the positioning of the terminal and the delivery of assistance data to the terminal. The AMF may receive a location service request related to the terminal from a 5th generation core network location services (5 gc LCS) entity, or the AMF itself may initiate some location services on behalf of a specific terminal and forward the location service request to the LMF. And the AMF obtains the position information returned by the terminal and returns the position information to the 5GC LCS entity.

The NG-RAN may include a gNB, a next generation evolved nodeB (NG-eNB), and the like. The gNB and the NG-eNB are connected through an Xn interface, and the AMF is connected with the NG-eNB/gNB through an NG-C interface.

The terminal may measure downlink signals from the NG-RAN to support positioning. The gNB/ng-eNB may provide the terminal with positioning measurement information and communicate this positioning measurement information to the terminal.

The possible information interaction between the LMF and the terminal comprises the following steps: 1) Information interaction is performed between the LMF and the ng-eNB/gNB through an NR positioning protocol a (NRPPa) message, for example, positioning Reference Signals (PRS), sounding Reference Signals (SRS) configuration information, cell timing, cell location information, and the like are acquired; 2) Terminal capability information transmission, auxiliary information transmission, positioning measurement information transmission and the like are performed between the LMF and the terminal through an LTE Positioning Protocol (LPP) message.

It should be noted that the present application is not limited to the system architecture shown in fig. 1, and may also be applied to other future communication systems, such as the sixth generation (6 g) communication system architecture. Also, the network elements to which the present application relates may remain functionally the same in future communication systems, but the names may change.

The terminal device, which may also be referred to as a terminal, in this embodiment of the present application is an entity for receiving or transmitting a signal at a user side, and is configured to send an uplink signal to a network device or receive a downlink signal from the network device. Including devices that provide voice and/or data connectivity to a user and may include, for example, handheld devices having wireless connection capability or processing devices connected to a wireless modem. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal device may include a User Equipment (UE), a V2X terminal device, a wireless terminal device, a mobile terminal device, a device-to-device communication (D2D) terminal device, a machine-to-machine-type communication (M2M/MTC) terminal device, an internet of things (IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber state), a mobile station (mobile state), a remote station (remote state), an Access Point (AP), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), or a user equipment (user device), a wearable device, a vehicle-mounted device, and the like.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g. placed in or mounted in a vehicle), may be considered to be vehicle-mounted terminal devices, also referred to as on-board units (OBUs), for example.

The core network related in the embodiment of the present application may include a network device that processes and forwards signaling and data of a user. For example, the core network devices include an AMF, a Session Management Function (SMF), and a user plane gateway. The user plane gateway may be a server having functions of performing mobility management, routing, forwarding and the like on user plane data, and is generally located on a network side, such as a Serving Gateway (SGW), a packet data network gateway (PGW), a user plane network function entity (UPF), and the like. The AMF and the SMF correspond to Mobility Management Entity (MME) in the LTE system. The AMF is mainly responsible for admission aspects and the SMF is mainly responsible for session management. Of course, other network elements may be included in the core network, which is not listed here.

The next generation radio access network (NG-RAN) related in the embodiment of the present application may include one or more access network devices. The access network device in the NG-RAN may also be referred to as a base station, or RAN node, or RAN device. An access network device is an entity on the network side for transmitting and/or receiving signals as a router between a terminal and the rest of the access network, which may comprise an IP network or the like. The access network device may also coordinate management of attributes for the air interface. For example, the access network device may be an evolved Node B (eNB) or e-NodeB in LTE, and the eNB is a device that is deployed in a radio access network and satisfies 4G standards to provide a terminal with a wireless communication function. The access network device may also be a new radio controller (NR controller), which may be a gnon B (gNB) in a 5G system, may be a centralized network element (centralized unit), may be a new radio base station, may be a radio remote module, may be a micro base station (also called a small station), may be a relay (relay), may be a distributed network element (distributed unit), may be various forms of macro base stations, may be a TRP, a Transmission Measurement Function (TMF), a Transmission Point (TP), or any other radio access device, or a base station in next generation communication, but the embodiment of the present invention is not limited thereto.

In applying the positioning architecture shown in fig. 1, there may be a positioning scenario shown in fig. 2, which includes: a plurality of base stations gNB 1-gNB 6, UE, LMF, and serving base station gNB-s. The figure is only schematically described, but in practical application, the number of base stations is not particularly limited. It should be noted that, in practical applications, the UE can determine the location of the UE only by resolving the positioning reference signals from at least 3 base stations. gNB1 to gNB6 in the diagram may respectively transmit positioning reference signals PRS1, PRS2, PRS3, PRS4, PRS5, and PRS6 to the UE, and the UE may measure distances between different base stations and the UE based on the positioning reference signals, and then may calculate the position of the UE according to the known base station positions. The terminal equipment can feed the resolved position information back to the gNB-s and feed the position information back to the LMF through the gNB-s. In addition, there is an obstacle between the UE and the gNB illustrated in fig. 2, that is, the path between the UE and the gNB is NLOS.

It should be noted that, the serving base station may provide communication services for the UE, such as: the UE may receive messages from other UEs through the serving base station, or the UE may forward messages through the serving base station, and the present application does not limit which communication services the serving base station may provide for the UE. In practical application, the serving base station may be one of the gnbs 1 to gNB6, that is, the serving base station may also send a positioning reference signal to the UE. Alternatively, as shown in fig. 2, the serving base station and the gnbs 1 to 6 are independent from each other, and the serving base station does not transmit the positioning reference signal to the UE, and only receives the positioning measurement information from the UE. The base station is applicable to the scheme of the present application regardless of the case in which the serving base station is the one described above.

Next, referring to fig. 3, a positioning process provided by the present application is specifically described, where positioning needs to be implemented by interaction of access network equipment, service access network equipment, terminal equipment, and a positioning server, fig. 3 illustrates the terminal equipment by using UE, illustrates the access network equipment by using gNB1 and gNB2, illustrates the service access network equipment by using gNB-s, and illustrates the positioning server by using LMF, but the number of the access network equipment is not limited in practical application, and fig. 3 illustrates that the service access network equipment also sends a positioning reference signal to the terminal equipment, and when specifically executed, the following steps may be performed:

301a, gnbb 1 sends positioning reference signal 1 to the UE.

301b, gnbb 2 sends positioning reference signal 2 to the UE.

301C, the gNB-s sends positioning reference signals 3 to the UE.

Accordingly, the UE receives positioning reference signals 1, 2 and 3 from the gnbs 1, 2 and gNB-s, respectively.

302, the ue determines positioning measurement information 1 based on positioning reference signal 1, positioning measurement information 2 based on positioning reference signal 2 and positioning measurement information 3 based on positioning reference signal 3.

The positioning measurement result is determined by the terminal device according to a positioning reference signal sent by an access network device, and the positioning measurement result corresponds to LOS status information, which can indicate whether the positioning measurement result is LOS or NLOS. The positioning measurement result may be indicated by TOA and/or angle of arrival, or may be indicated by other indicators, which is not specifically limited herein. The LOS status information may indicate whether the location measurement is LOS or NLOS. Such as: the positioning measurement information 1 includes TOA and angle of arrival measured by the UE for the positioning reference signal 1, and LOS status information detected by the UE for the positioning reference signal 1.

It should be noted that the terminal device may determine the positioning measurement result between the terminal device and the access network device through the first algorithm. The first algorithm may be a maximum likelihood estimation algorithm, a MUSIC algorithm, or the like, and is not specifically limited herein. The maximum likelihood estimation algorithm performs correlation operation on the locally generated positioning reference signal and the received positioning reference signal, the time corresponding to all peak points larger than the threshold is the arrival time of the positioning reference signal passing through different paths, and the arrival time of the first peak point is the TOA of the LOS path. The MUSIC algorithm is a method based on matrix characteristic space decomposition, an observed autocorrelation matrix of a reference signal is decomposed into a signal subspace and a noise subspace, a space spectrum is constructed, and a TOA value corresponding to a spectrum peak of the space spectrum is a measured value.

The terminal device may perform LOS status detection on a channel between the terminal device and the access network device through a second algorithm. The second algorithm may be a consistency analysis algorithm, and may also be an AI-based algorithm. The consistency analysis algorithm determines the LOS status by detecting the signal strength fluctuation condition of the terminal equipment under different antenna units, for example, if the signal strength fluctuation of the terminal equipment is small, the positioning measurement information is considered as LOS; and if the signal intensity fluctuation of the terminal equipment is large, the positioning measurement information is considered to be NLOS. The AI-based algorithm is to train the neural network model by using the neural network based on the historical channel data between the terminal and each access network, and when LOS is determined, the estimated channel coefficient or the received reference signal is directly input into the neural network model to output the LOS detection result.

In addition, the position measurement result and the LOS status information can be determined according to other manners, which is not necessarily indicated here, and all methods for determining the position measurement result and the LOS status information based on the position reference signal are applicable to the present application.

303, the ue sends positioning measurement information 1, positioning measurement information 2 and positioning measurement information 3 to the gNB-s.

304, gnb-s sends positioning measurement information 1, positioning measurement information 2, and positioning measurement information 3 to the LMF.

In the embodiment of the application, the LOS state information fed back by the terminal equipment during positioning can indicate whether the positioning measurement result is LOS or NLOS, and when positioning, the positioning server can learn which positioning measurement result is reliable according to the LOS state information corresponding to the positioning measurement result, so that the position of the terminal equipment can be determined more accurately.

In an alternative manner, the LOS status information may be indicated in different manners, as follows:

in the mode 1, the number of the LOS state information is multiple, the multiple positioning measurement results are sequenced according to the corresponding LOS probability, and the LOS state information corresponding to one or more positioning measurement results is indicated through sequencing. It should be noted that, the terminal device sorts the positioning measurement results according to the corresponding LOS probabilities, and can implicitly indicate the relative relationship between the LOS probabilities of the measurement quantities, so as to save additional LOS status information bits (i.e., save the information bit number occupied by the non-stealth indication), and achieve the purposes of indicating the weight of the measurement quantities of the positioning server and improving the positioning accuracy.

Mode 2, the los status information includes: LOS judgment result or LOS probability of the channel between the terminal equipment and the access network equipment; LOS status information may be indicated by one or more bits.

It should be noted that the LOS status information is only an exemplary illustration, and the LOS status information may indicate whether a channel between the terminal device and the access network device is LOS or NLOS, and in practical applications, the LOS status information may also be referred to as LOS result, LOS status, and the like, and the LOS status information may also include LOS channel indication information of other names, which is not specifically limited herein. The LOS decision result and the LOS probability mentioned above may also include LOS quality, LOS confidence, and the like, and the LOS status information mentioned above is not only an LOS condition of a channel between the terminal device and the access network device, but also an NLOS condition of a channel between the terminal device and the access network device, that is, the LOS status information may be an NLOS decision result or an NLOS probability of a channel between the terminal device and the access network device, and the application is not specifically limited herein.

The LOS probability is obtained by performing LOS detection calculation on a channel between the terminal equipment and the access network equipment through an LOS detection algorithm (such as a consistency analysis algorithm), and reporting the LOS probability (reporting after quantification of the LOS probability) can indicate the LOS state information of the channel, so that the positioning precision is improved. The LOS decision result is obtained by comparing the LOS probability with a certain threshold PLOS to make LOS/NLOS decision on the channel, that is, when the LOS probability is greater than or equal to the PLOS, the LOS channel is decided, and if the bit is 1, the channel between the terminal device and the access network device is an LOS channel. And when the LOS probability is lower than the PLOS, judging the channel as an NLOS channel, wherein if the bit is 0, the channel between the terminal equipment and the access network equipment is an NLOS channel. Reporting the LOS judgment result can effectively reduce the bit overhead reported by the physical layer, reduce the load of the system and indicate the most basic LOS state of the current channel of the positioning server. The LOS confidence is similar to the LOS probability, and is a measurement index of the current LOS channel determined after LOS detection is performed on the channel based on the reference signal, the higher the LOS confidence is, the more likely the channel is LOS, and the lower the LOS confidence is, the more likely the channel is NLOS. LOS quality is a measurement index of the current LOS channel determined after LOS detection is carried out on the channel based on a reference signal, the higher the quality is, the higher the LOS probability is, the more likely the channel is the LOS channel, and the lower the quality is, the lower the LOS probability is, the more likely the channel is the NLOS channel. The present application is only illustrative and does not specifically limit the determination manner of the LOS status information.

In addition, the LOS probability, the LOS quality, the LOS confidence coefficient and the like can be used for conducting LOS detection determination on the channel between the terminal and the access network equipment through an LOS detection algorithm, the LOS judgment result can be determined by comparing the LOS probability, the LOS quality, the LOS confidence coefficient and the like with a preset threshold value, and the LOS judgment method is only schematically illustrated here and does not specifically limit the determination mode of the LOS state information. In practical application, the service access network device and the terminal device may be arranged to select one or more of them to indicate the LOS status information, for example, the LOS status information is indicated by the LOS decision result, or the LOS status information is indicated by the LOS decision result and the LOS probability together.

It should be further noted that the LOS status information may be indicated by 1 bit, or may be indicated by multiple bits, and in actual application, the service access network device and the UE may select several bits to indicate the LOS status information, which is not specifically limited herein. As shown in table 1, if the LOS status information is the LOS decision result, the indication can be performed by 1 bit, if the bit is 1, the LOS status information corresponding to the positioning measurement result is indicated as LOS, and if the bit is 0, the LOS status information corresponding to the positioning measurement result is indicated as NLOS. For example, the positioning measurement result determined by the UE based on the PRS1 measurement from the gNB1 is a, and the corresponding bit value is 0, which indicates that the channel between the UE and the gNB1 is NLOS.

TABLE 1

In table 1, the LOS decision result is indicated by one bit, but in practical applications, the LOS decision result may also be indicated by a plurality of bits, and the application is not limited in this respect.

Mode 3, the los status information includes: quality parameters of a channel between the terminal equipment and the access network equipment; the quality parameters include one or more of: channel gain, variance, and standard deviation.

It should be noted that the quality parameter may feed back the channel condition between the terminal device and the access network device, and may indirectly feed back the LOS status, such as channel gain, variance, and standard deviation, where the channel gain refers to the result obtained by dividing the power of the received reference signal by the transmit power of the reference signal. The variance refers to the variance of the current channel coefficient estimated based on the reference signal. The standard deviation refers to the positive square root of the channel coefficient variance. If the quality parameter between the terminal device and the access network device is the channel gain, if the value of the channel gain exceeds the threshold value of the channel gain, it can be determined that the quality of the channel is good, and only in the LOS channel state, the channel gain can exceed the threshold value, so that it can be determined that the channel between the terminal device and the access network device is the LOS. The present application only schematically describes the quality parameters as channel gain, variance and standard deviation, but in practical applications, it is not limited to which parameters are specifically defined.

To better illustrate the solution of the present application, how the terminal device may report the positioning measurement result and the LOS status information is illustrated in different cases by specific examples. The following mentioned manner of reporting the positioning measurement result and the LOS status information is only described as an example, and is not limited to the reporting method of the terminal device specifically, and in practical applications, other reporting methods or a manner of indicating the LOS status information may be involved.

On the basis of fig. 2, if the UE determines the LOS probabilities between the UE and each of the gNB1, gNB2, gNB3, gNB4, gNB5, and gNB6 according to one or more of the above mentioned LOS detection algorithms, it is assumed that the LOS probabilities calculated by the UE are as follows; UE-gNB1:0.95; UE-gNB2:0.88; UE-gNB3:0.92; UE-gNB4:0.12; UE-gNB5:0.96; UE-gNB6:0.06. Since the physical layer reports the bit quantity first, specifically reporting may be performed with reference to the following situations on the basis of the example, specifically as follows:

case 1: and the UE reports the measurement results of all the base stations and the corresponding LOS probability. Of course, the case 1 is only an exemplary illustration here, and how to report the measurement results of all base stations and the corresponding LOS probabilities are not specifically limited.

The UE determines 6 positioning measurement results based on positioning reference signals from 6 gnbs, as shown in table 2, the positioning measurement result determined by the UE for PRS1 measurement from gNB1 is a, and the LOS probability is 0.95; the positioning measurement result determined by the UE on the PRS2 measurement from the gNB2 is B, and the LOS probability is 0.88; the positioning measurement result determined by the UE on the PRS3 measurement from the gNB3 is C, and the LOS probability is 0.92; the positioning measurement result determined by the UE on the PRS4 measurement from the gNB4 is D, and the LOS probability is 0.12; the positioning measurement result determined by the UE on the PRS5 measurement from the gNB5 is E, and the LOS probability is 0.96; the positioning measurement result determined by the UE on PRS6 measurement from gNB6 is F, and the LOS probability is 0.06; the UE may report all the positioning measurement results and the LOS probabilities corresponding to the measurement results as shown in table 2.

In addition, the greater the LOS probability is, the higher the reliability of the positioning measurement result is, and the less the positioning measurement result is interfered by the NLOS, and the smaller the LOS probability is, the less reliable the positioning measurement result is, and the more the positioning measurement result is interfered by the NLOS.

TABLE 2

Access network device identification	Positioning reference signal identification	Positioning measurement results	LOS probability
				gNB1	PRS1	A	0.95
gNB2	PRS2	B	0.88
				gNB3	PRS3	C	0.92
gNB 4	PRS4	D	0.12
				gNB5	PRS5	E	0.96
gNB6	PRS6	F	0.06

Case 2: UE can make 0,1 decision based on LOS probability, 1 represents that there is LOS channel between terminal and access network equipment, or the corresponding measurement result is the measurement result of LOS path; 0 represents that there is no LOS channel between the terminal and the base station, or the corresponding measurement result is the measurement result of NLOS path. The terminal sets the decision threshold to be 0.5, namely the LOS probability is more than or equal to 0.5 and the decision is 1, and the LOS probability is less than 0.5 and the decision is 0. Of course, case 2 is only an exemplary illustration here, and does not specifically limit how to decide on the LOS channel between the base station and the terminal device.

Therefore, the LOS probability between the UE and the gNB1 is 0.95 which is greater than 0.5, and the decision is 1; the LOS probability between UE-gNB2 is 0.88 greater than 0.5, and the decision is 1; the LOS probability between UE-gNB3 is 0.92 greater than 0.5, and the decision is 1; the LOS probability between UE-gNB4 is 0.12 less than 0.5, and the decision is 0; the LOS probability between UE-gNB5 is 0.96 greater than 0.5, and the decision is 1; a LOS probability of 0.06 over 0.5 between UE-gNB6 is decided to be 0. Based on the above decision result, the UE may feed back the positioning measurement result and the LOS status information with reference to table 3.

TABLE 3

Or, the UE may report only the location measurement result of the detected LOS, as shown in table 4, that is, only report the location measurement result A, B, C, E.

TABLE 4

Access network device identification	Positioning reference signal identification	Positioning measurement results	LOS indication information
				gNB1	PRS1	A	1
gNB2	PRS2	B	1
				gNB3	PRS3	C	1
gNB5	PRS5	E	1

Case 3: the UE may report the positioning measurement result corresponding to the gNB with the LOS probability greater than a certain threshold, or report the positioning measurement results corresponding to several gnbs with the highest LOS probability. Of course, the case 3 is only an exemplary illustration here, and how to report the positioning measurement result with the LOS probability satisfying the threshold is not particularly limited.

For example, reporting the positioning measurement result of the access network device with the LOS probability greater than 0.9, or reporting the measurement results of the three access network devices with the maximum LOS probability, and/or reporting the corresponding LOS probability (or the corresponding decision result), and the like. As shown in table 5, the UE reports the positioning measurement result with LOS probability greater than 0.9.

TABLE 5

Access network device identification	Positioning reference signal identification	Positioning measurement results	LOS probability
				gNB1	PRS1	A	0.95
gNB3	PRS3	C	0.92
				gNB5	PRS5	E	0.96

When the UE reports the positioning measurement result with the LOS probability greater than 0.9, the UE may also report the positioning measurement result with the decision result of 1, as shown in table 6.

TABLE 6

Access network device identification	Positioning reference signal identification	Positioning measurement results	LOS indication information
				gNB1	PRS1	A	1
gNB3	PRS3	C	1
				gNB5	PRS5	E	1

Case 4: the UE may report the measurement result and LOS probability for a particular gNB. Of course, the case 4 is only an exemplary illustration here, and how to report the measurement result of a specific base station and the corresponding LOS probability are not specifically limited.

For example, the positioning measurement results and LOS probabilities of the four base stations, which are gNB1, gNB2, gNB4, and gNB5, are reported according to the LMF indication, as shown in table 7.

TABLE 7

Access network device identification	Positioning reference signal identification	Positioning measurement results	LOS probability
				gNB1	PRS1	A	0.95
gNB2	PRS2	B	0.88
				gNB 4	PRS4	D	0.12
gNB5	PRS5	E	0.96

In practical application, the LOS probability can be indicated by reporting the LOS decision result, as shown in table 8.

TABLE 8

Access network device identification	Positioning reference signal identification	Positioning measurement results	LOS indication information
				gNB1	PRS1	A	1
gNB2	PRS2	B	1
				gNB 4	PRS4	D	0
gNB5	PRS5	E	1

Case 5: the UE reports the positioning measurement results in a high-to-low sequence according to the LOS probability based on the LOS probability, and the LMF determines the relative relation of the LOS probability between each gNB and the UE according to the sequence of the positioning measurement results; or based on the LOS probability, the positioning measurement results are sorted from high to low according to the LOS probability, only the positioning measurement results of a plurality of gNBs with the highest LOS probability are reported, and the LMF determines the relative relation of the LOS probability between each gNB and the UE according to the sequence of the positioning measurement results. Of course, the case 5 is only an exemplary illustration, and does not specifically limit how to sort the LOS probabilities and report the positioning measurement results.

As shown in table 9, after the positioning measurement results are ranked from high to low according to the LOS probability, the UE reports the measurement results in sequence, and the LMF may determine the ranking of the LOS probability between each gNB and the UE according to the reporting sequence of the positioning measurement results.

TABLE 9

Access network device identification	Positioning reference signal identification	Positioning measurement results
			gNB5	PRS5	E
gNB 1	PRS1	A
			gNB3	PRS3	C
gNB 2	PRS2	B
			gNB 4	PRS4	D
gNB6	PRS6	F

As shown in table 10, based on the LOS detection probability, the UE sorts the measurement results from high to low according to the LOS probability, only reports the positioning measurement results of the 4 gnbs with the highest LOS probability, and the LMF determines the relative relationship between the LOS probabilities of the base stations according to the order of the measurement results.

Watch 10

Access network device identification	Positioning reference signal identification	Positioning measurement results
			gNB5	PRS5	E
gNB 1	PRS1	A
			gNB3	PRS3	C
gNB 2	PRS2	B

In the above cases 1 to 5, when the UE reports the positioning measurement results according to the LOS probability ranking, the LMF may perform weighted calculation on different positioning measurement results according to the ranking of the positioning measurement results after receiving the positioning measurement results, thereby solving the location information of the UE.

Certainly, the LOS probability in the above cases 1 to 5 may also be the NLOS probability, and the present application is not specific here, and the LOS probability reported by the UE may be reported in a quantization form, for example, 0 to 1 is quantized into 16 levels, and the indication is performed by 4 bits, as shown in table 11. Wherein 1111 indicates that the range of the LOS probability is 15/16-1, and 0000 indicates that the range of the LOS probability is 0-1/16. 1110 indicates that the LOS probability has a value range of 14/16 to 15/16, etc., which is not illustrated here. For example, when the UE reports the positioning measurement result a with LOS probability of 0.95, 1111 may be reported, since 0.95 is in the range of 15/16-1. This is merely an example and is not intended to be limiting.

TABLE 11

LOS probability	Dereferencing of bits
		15/16-1	1111
14/16-15/16	1110
		13/16-14/16	1101
…	…
		2/16-3/16	0010
1/16-2/16	0001
		0-1/16	0000

It should be further noted that, in the present application, before the positioning information reporting method shown in fig. 3 is executed, the terminal device may send the positioning configuration request information to the positioning server; receiving positioning reference signal configuration information and LOS detection configuration information from a positioning server; the LOS detection configuration information includes one or more of: LOS detection algorithm, indication information of access network equipment for LOS detection, and indication information of positioning reference signals for LOS detection.

The positioning reference signal configuration information may include time domain resource configuration information of the positioning reference signal, that is, in which time domain resource the positioning reference signal is transmitted, so that the terminal device can receive the positioning reference signal in the corresponding time domain resource. The positioning server can instruct the terminal equipment to adopt what algorithm to perform LOS detection through the LOS detection configuration information, detect which channels between the access network equipment and the terminal equipment are detected at all, and specifically report which information and the like. For example, the algorithms used in LOS detection may include a consistency analysis algorithm, a detection algorithm based on a neural network model, and the like, and the location server may instruct the terminal device to perform LOS detection by using the consistency analysis algorithm through the LOS detection configuration information. The positioning server can also instruct the terminal device to feed back the LOS detection result of which access network devices through the indication information of the access network devices for LOS detection or the indication information of the positioning reference signals for LOS detection.

The access network device indication information for LOS detection may be identified by an access network device Identifier (ID), for example, TRP ID1, TRP ID2, and the like. The indication information of the positioning reference signal for LOS detection may be indicated by reference signal ID identification, e.g., PRS ID1, PRS ID2, etc. Correspondingly, the LPP protocol location information request message NR-DL-TDOA-RequestLocation information-r16 adds the TRP index NR-LOS-Detect-ID to be detected by LOS, which is only described as an example.

In an alternative, the serving access network device may receive indication information from the location server, where the indication information may be used to instruct the terminal device to perform location measurement and LOS detection on the terminal device. Accordingly, the service access network device may forward the indication information to the terminal device.

It should be noted that the indication information may be sent through downlink control information, or MAC, or RRC, and the application is not limited in this application.

In an optional mode, the terminal device may receive a first LOS detection trigger state from the location server, where there is a correspondence between LOS detection configuration information and the LOS detection trigger state; determining first LOS detection configuration information corresponding to the first LOS detection trigger state according to the first LOS detection trigger state and the corresponding relation; and detecting the positioning reference signals of one or more access network devices through the first LOS detection configuration information, and determining LOS state information corresponding to one or more positioning measurement results respectively.

The corresponding relationship between the LOS detection trigger state and the LOS detection configuration information can be shown in the following table 12, where a state value of the LOS detection trigger state is 11, which indicates that the terminal device detects a channel between the terminal device and the access network device by using a consistency analysis algorithm, and reports an LOS decision result; the state value of 10 indicates that the terminal equipment adopts a consistency analysis algorithm to detect a channel between the terminal equipment and the access network equipment, and reports LOS probability; the state value of 01 indicates that the terminal equipment adopts a detection algorithm for a neural network model to detect a channel between the terminal equipment and the access network equipment, and reports an LOS judgment result; and the state value of 00 indicates that the terminal equipment adopts a detection algorithm based on a neural network model to detect the channel between the terminal equipment and the access network equipment, and reports the LOS probability.

TABLE 12

It should be noted that the positioning assistance information includes an LOS detection trigger state, so that the terminal device can definitely know which LOS detection configuration information is specifically adopted to detect the LOS channel between the terminal device and the access network device.

In an optional manner, before the terminal device sends the location configuration request information to the location server, at this time, the terminal device may feed back the LOS detection capability information after receiving the request information for sending the LOS detection capability information from the location server, or the terminal device may feed back the LOS detection capability information autonomously, which is not specifically limited herein.

Wherein, the LOS detection capability information may include one or more of the following: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels of LOS detection supported by the terminal equipment at the single frequency point or the multiple frequency points, an LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

It should be noted that, different terminal devices have different device performances, and after the terminal device feeds back the LOS detection capability information to the positioning server, the positioning server may configure the LOS detection configuration information according to the detection capability of the terminal device.

Next, an execution flow of the method for reporting location information in the present application is exemplarily illustrated by fig. 4, where fig. 4 illustrates an interaction flow among a UE (terminal device), a gNB (serving access network device), and an LMF (location server), and the following may be executed:

400, the lmf receives a location request for the UE, which may be understood as being sent by a network element in the core network.

401, the lmf requests LOS detection capability information of the UE through the LPP protocol.

402, the UE feeds back LOS detection capability information to the LMF through the LPP protocol, where the LOS detection capability information may include whether the UE supports LOS detection at a single frequency point or multiple frequency points, a maximum number of channels of supported LOS detection of the UE at the single frequency point or multiple frequency points, a LOS detection algorithm supported by the UE, a confidence of the LOS detection algorithm supported by the UE, and the like.

403, configuration information, such as configuration information of positioning reference signals PRS, is exchanged between the lmf and the gNB through NRPPa protocol.

404, the ue requests location assistance information from the LMF.

405, the lmf feeds back positioning assistance information to the UE via the LPP protocol, which may include: configuration information of aperiodic PRS, LOS detection configuration information.

406,lmf instructs the gNB through NRPPa signaling to activate UE measurements on aperiodic PRS through DCI.

407, the gnb instructs the UE to measure the aperiodic PRS through the DCI.

And 408, the UE determines positioning measurement information based on the aperiodic PRS and reports the positioning measurement information to the gNB through a physical layer.

409,gNB feeds back the positioning measurement information to the LMF through NRPPa signaling.

It should be noted that, after the positioning server obtains the positioning measurement result, it can learn which positioning measurement result is reliable according to the LOS status information corresponding to the positioning measurement result, and under the condition that the positioning server explicitly knows that the positioning measurement result is reliable, it is convenient to determine the location of the terminal device more accurately.

On the basis of fig. 4, LOS detection configuration information may include multiple types, and the LMF may indicate, through a status value corresponding to the LOS detection configuration information, which LOS detection configuration information is adopted by the bottom terminal device to perform LOS detection, as shown in fig. 5, executable entities are as follows:

500,lmf receives a location request for a UE.

501, the LMF requests LOS detection capability information of the UE through LPP protocol.

502, the UE feeds back LOS detection capability information to the LMF through the LPP protocol.

503, the LMF and the gNB exchange configuration information through an NRPPa protocol.

504, the ue requests location assistance information from the LMF.

505, the lmf feeds back positioning assistance information to the UE via the LPP protocol, which may include: configuration information of aperiodic PRS, LOS detection configuration information, and LOS detection trigger status.

506, lmf instructs the gNB through NRPPa signaling to activate UE measurements on aperiodic PRS through DCI.

507, the gNB instructs the UE to measure the aperiodic PRS through the DCI.

And 508, the UE detects the non-periodic PRS based on LOS detection configuration information corresponding to the LOS detection trigger state, determines positioning measurement information and reports the positioning measurement information to the gNB through a physical layer.

509, the gbb feeds back the positioning measurement information to the LMF through NRPPa signaling.

It should be noted that the LOS detection configuration information may include multiple types, and the location assistance information includes an LOS detection trigger state, so that the terminal device can definitely know which LOS detection configuration information is specifically adopted to detect the LOS channel between the terminal device and the access network device.

Based on the same conception, an embodiment of the present application provides a communication apparatus, which includes, as shown in fig. 6, a receiving unit 601 and a sending unit 602, where the communication apparatus may be applied to the foregoing terminal device, may also be the foregoing service access network device, may also be the foregoing access network device, and may also be the foregoing positioning server. The receiving unit may be configured to implement the sending function in the method embodiment, the receiving unit may be configured to implement the receiving function in the method embodiment, and other functions in the method embodiment may be implemented by the processing unit. The receiving unit may be implemented by an output interface in the data processing chip, the sending unit may be implemented by an input interface of the data processing chip, the sending and receiving in the method embodiment respectively correspond to the output and the input in the chip, and in addition, the sending unit and the processing unit may also be implemented by the same chip, which is not specifically limited herein. The communication device further includes a processing unit, which may be implemented by a processor or the like, and the present application is not limited in particular herein.

When the communication apparatus is a terminal device, the receiving unit 601 may be configured to receive positioning reference signals from one or more access network devices; a sending unit 602, configured to send positioning measurement information to a serving access network device; the positioning measurement information includes: one or more positioning measurement results and LOS status information respectively corresponding to the one or more positioning measurement results. It is further noted that the processing unit may determine one or more positioning measurement results based on the positioning reference signal and LOS status information corresponding to the one or more positioning measurement results, respectively.

In the embodiment of the application, the LOS state information fed back by the terminal equipment during positioning can indicate whether the positioning measurement result is LOS or NLOS, and during positioning, which positioning measurement result is reliable can be known according to the LOS state information corresponding to the positioning measurement result, so that the position of the terminal equipment can be determined more accurately.

In an optional implementation manner, the LOS status information is multiple, the multiple positioning measurement results are sorted according to the corresponding LOS probabilities, and the LOS status information corresponding to one or more positioning measurement results indicated by the sorting is indicated by the sorting. It should be noted that, when receiving positioning reference signals from multiple access network devices, the terminal device may determine multiple positioning measurement results based on the multiple positioning reference signals, where LOS probabilities corresponding to different positioning measurement results are different, and the terminal device may agree in advance with the serving access network device to report only a few positioning measurement results with the highest LOS probability ranking.

In an alternative embodiment, the LOS status information includes: LOS decision result or LOS probability of the channel between the terminal equipment and the access network equipment.

In an optional implementation, the LOS status information includes: quality parameters of a channel between the terminal equipment and the access network equipment; the quality parameters include one or more of: channel gain, variance, and standard deviation.

In an optional implementation manner, the sending unit 602 is further configured to send location configuration request information to the location server; the receiving unit is also used for receiving positioning reference signal configuration information and LOS detection configuration information from the positioning server; the LOS detection configuration information includes one or more of: LOS detection algorithm, indication information of access network equipment for LOS detection, and indication information of positioning reference signal for LOS detection.

It should be noted that the configuration information of the positioning reference signal includes time domain resource configuration information of the positioning reference signal, that is, in which time domain resource the positioning reference signal is sent, so that the terminal device can receive the positioning reference signal in the corresponding time domain resource. The LOS detection configuration information can indicate the algorithm adopted by the terminal equipment to perform LOS detection, detect the channels between the access network equipment and the terminal equipment, and specifically report information and the like. For example, the algorithms used in LOS detection may include a consistency analysis algorithm, a detection algorithm based on a neural network model, and the like, and the location server may instruct the terminal device to perform LOS detection by using the consistency analysis algorithm through the LOS detection configuration information. The indication information of the access network equipment for the LOS detection can be indicated through the identifier of the access network equipment, and the indication information of the positioning reference signal for the LOS detection can be indicated through the identifier of the reference signal, wherein the terminal equipment specifically detects which channels of the access network equipment, and the indication information can be determined according to the identifier of the access network equipment in the LOS detection configuration information, and can also be determined through the identifier of the reference signal.

In an optional implementation manner, the receiving unit 601 is further configured to receive a first LOS detection trigger state from the location server, where there is a correspondence between LOS detection configuration information and LOS detection trigger state; the communication device further comprises a processing unit, wherein the processing unit is used for determining first LOS detection configuration information corresponding to the first LOS detection trigger state according to the first LOS detection trigger state and the corresponding relation; and detecting the positioning reference signals of one or more access network devices through the first LOS detection configuration information, and determining LOS state information corresponding to one or more positioning measurement results respectively.

In an optional implementation manner, the receiving unit 601 is further configured to receive indication information from a serving access network device; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

In an optional implementation manner, the sending unit 602 is further configured to send LOS detection capability information of the terminal device to the location server; the LOS detection capability information includes one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels supporting LOS detection at the single frequency point or the multiple frequency points, LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

When the communication apparatus is a service access network device, the receiving unit 601 is configured to receive positioning measurement information from a terminal device; the positioning measurement information includes: the method comprises the steps that the terminal equipment determines one or more positioning measurement results based on a positioning reference signal and LOS state information respectively corresponding to the one or more positioning measurement results; a sending unit 602, configured to send the positioning measurement information to the positioning server.

In an optional implementation manner, the LOS status information is multiple, the multiple positioning measurement results are sorted according to the corresponding LOS probabilities, and LOS status information corresponding to one or multiple positioning measurement results is indicated by sorting. It should be noted that, when receiving positioning reference signals from multiple access network devices, the terminal device may determine multiple positioning measurement results based on the multiple positioning reference signals, where LOS probabilities corresponding to different positioning measurement results are different, and the terminal device may agree in advance with the serving access network device to report only several positioning measurement results with the LOS probability ranked earlier.

In an alternative embodiment, the LOS status information includes: quality parameters of a channel between the terminal equipment and the access network equipment; the quality parameters include one or more of the following: channel gain, variance, and standard deviation.

In an optional embodiment, the receiving unit 601 is further configured to receive indication information from a positioning server; the sending unit 602 is further configured to send indication information to the terminal device; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

When the communication device is a location server, the receiving unit 601 is configured to determine, according to the first LOS detection trigger state and the corresponding relationship, first LOS detection configuration information corresponding to the first LOS detection trigger state; the processing unit is configured to detect, through the first LOS detection configuration information, a positioning reference signal of one or more access network devices, and determine LOS status information corresponding to one or more positioning measurement results, respectively.

In an optional embodiment, the receiving unit 601 is configured to receive location configuration request information from a terminal device; the sending unit 602 is configured to send the positioning reference signal configuration information and the LOS detection configuration information to the terminal device; the LOS detection configuration information includes one or more of: LOS detection algorithm, LOS detection access network equipment indication information and LOS detection positioning reference signal indication information.

In an optional implementation manner, the sending unit 602 is further configured to send a first LOS detection trigger state to the terminal device, where there is a correspondence between the LOS detection configuration information and the LOS detection trigger state, so that the terminal device determines, according to a state value and the correspondence of the first LOS detection trigger state, first LOS detection configuration information corresponding to the first LOS detection trigger state; and detecting the positioning reference signals of one or more access network devices through the first LOS detection configuration information, and determining LOS state information corresponding to one or more positioning measurement results respectively.

It should be noted that the LOS detection configuration information may include multiple types, and the LOS detection trigger state may enable the terminal device to explicitly know which LOS detection configuration information is specifically adopted to detect the LOS channel between the terminal device and the access network device.

In an optional embodiment, the receiving unit 601 is further configured to receive positioning measurement information from a serving access network device; the positioning measurement information includes: the terminal equipment determines one or more positioning measurement results based on the positioning reference signals and LOS state information respectively corresponding to the positioning measurement results.

In the embodiment of the application, the LOS state information fed back by the terminal equipment during positioning can indicate whether the positioning measurement result is LOS or NLOS, and when positioning, which positioning measurement result is reliable can be known according to the LOS state information corresponding to the positioning measurement result, so that the position of the terminal equipment can be more accurately determined.

In an optional implementation, the LOS status information includes: LOS decision result or LOS probability of the channel between the terminal equipment and the access network equipment.

In an optional implementation, the receiving unit 601 is further configured to receive LOS detection capability information from the terminal device; the LOS detection capability information includes one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels supporting LOS detection at the single frequency point or the multiple frequency points, LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

In the above embodiments, the receiving unit and the transmitting unit may form a transceiving unit.

Further, the present application provides a communication system comprising: a service access network device and a location server; the serving access network device may perform the steps performed by the serving access network device, such as forwarding the positioning measurement information to the positioning server. The location server may select one or more location measurement results to determine location information of the terminal device according to LOS status information in the location measurement information. Based on the same concept, as shown in fig. 7, a communication apparatus 700 is provided for the present application. Illustratively, the communication device 700 may be a chip or a system of chips. Optionally, the chip system in the embodiment of the present application may be composed of a chip, and may also include a chip and other discrete devices.

The communication device 700 may include at least one processor 710 and the communication device 700 may also include at least one memory 720 for storing computer programs, program instructions, and/or data. A memory 720 is coupled to the processor 710. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The processor 710 may operate in conjunction with the memory 720. Processor 710 may execute computer programs stored in memory 720. Optionally, the at least one memory 720 may be integrated into the processor 710.

The communication device 700 may further include a transceiver 730, and the communication device 700 may interact with other devices through the transceiver 730. The transceiver 730 may be a circuit, a bus, a transceiver, or any other device that may be used to communicate with each other. The transceiver 730 may include a receiver and a transmitter. The receiver may be used to implement the receiving function in method embodiments, the transmitter may be used to implement the transmitting function in method embodiments, and other functions in method embodiments may be implemented by a processor.

In a possible implementation, the communication apparatus 700 may be applied to the terminal device, the serving access network device, or the positioning server. The memory 720 holds the necessary computer programs, program instructions and/or data to implement the functionality of the network device in any of the embodiments described above. The processor 710 can execute the computer program stored in the memory 720 to perform the method of any of the above embodiments.

The specific connection medium among the transceiver 730, the processor 710 and the memory 720 is not limited in the embodiments of the present application. In the embodiment of the present application, the memory 720, the processor 710, and the transceiver 730 are connected by a bus in fig. 7, the bus is represented by a thick line in fig. 7, and the connection manner between other components is merely illustrative and not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.

In the embodiments of the present application, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, and may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

In the embodiment of the present application, the memory may be a nonvolatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory, for example, a random-access memory (RAM). The memory can also be, but is not limited to, 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. The memory in the embodiments of the present application may also be circuitry or any other device capable of performing a storage function for storing computer programs, program instructions and/or data.

Based on the foregoing embodiments, the present application further provides a readable storage medium, which stores instructions that, when executed, cause the method performed by the security detection apparatus in any of the foregoing embodiments to be implemented. The readable storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

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

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

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

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

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

Claims

1. A method for reporting positioning information is applied to terminal equipment and is characterized by comprising the following steps:

receiving positioning reference signals from one or more access network devices;

sending positioning measurement information to service access network equipment; the positioning measurement information includes: the terminal equipment determines one or more positioning measurement results based on the positioning reference signal and line of sight (LOS) status information respectively corresponding to the one or more positioning measurement results.

2. The method of claim 1, wherein the LOS status information is a plurality of LOS status information, wherein the plurality of location measurements are ranked according to corresponding LOS probabilities, and wherein LOS status information corresponding to the one or more location measurements is indicated by the ranking.

3. The method of claim 1, wherein the LOS status information comprises: LOS decision result or LOS probability of the channel between the terminal equipment and each access network equipment.

4. The method of claim 1, wherein the LOS status information comprises: the quality parameters of the channels between the terminal equipment and each access network equipment; the quality parameters include one or more of: channel gain, variance, and standard deviation.

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

sending positioning configuration request information to a positioning server;

receiving positioning reference signal configuration information and LOS detection configuration information from the positioning server; the LOS detection configuration information comprises one or more of: LOS detection algorithm, indication information of access network equipment for LOS detection, and indication information of positioning reference signals for LOS detection.

6. The method of claim 5, further comprising:

receiving a first LOS detection trigger state from the positioning server, wherein the LOS detection configuration information and the LOS detection trigger state have a corresponding relation;

determining first LOS detection configuration information corresponding to the first LOS detection trigger state according to the first LOS detection trigger state and the corresponding relation;

and detecting the positioning reference signals of the one or more access network devices through the first LOS detection configuration information, and determining LOS state information corresponding to the one or more positioning measurement results respectively.

7. The method of claim 5 or 6, further comprising:

receiving indication information from the serving access network device; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

8. The method of any of claims 1-7, further comprising:

sending LOS detection capability information of the terminal equipment to a positioning server; the LOS detectability information comprises one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels of the LOS detection supported by the terminal equipment at the single frequency point or the multiple frequency points, the LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

9. A terminal device, comprising:

a receiving unit, configured to receive positioning reference signals from one or more access network devices;

a sending unit, configured to send the positioning measurement information to a service access network device; the positioning measurement information includes: the terminal equipment determines one or more positioning measurement results based on the positioning reference signal and line of sight (LOS) status information respectively corresponding to the one or more positioning measurement results.

10. The terminal device of claim 9, wherein the LOS status information is multiple, the multiple positioning measurement results are sorted according to corresponding LOS probabilities, and LOS status information corresponding to the one or more positioning measurement results is indicated by the sorting.

11. The terminal device of claim 9, wherein the LOS status information comprises: LOS decision result or LOS probability of the channel between the terminal equipment and the access network equipment.

12. The terminal device of claim 9, wherein the LOS status information comprises: a quality parameter of a channel between the terminal device and the access network device; the quality parameters include one or more of: channel gain, variance, and standard deviation.

13. The terminal device according to any of claims 9-12, wherein the sending unit is further configured to send a location configuration request message to a location server;

the receiving unit is further configured to receive positioning reference signal configuration information and LOS detection configuration information from the positioning server; the LOS detection configuration information comprises one or more of: LOS detection algorithm, indication information of access network equipment for LOS detection, and indication information of positioning reference signals for LOS detection.

14. The terminal device of claim 13,

the receiving unit is further configured to receive a first LOS detection trigger state from the location server, where there is a correspondence between the LOS detection configuration information and the LOS detection trigger state;

15. The terminal device according to claim 13 or 14, wherein the receiving unit is further configured to receive indication information from the serving access network device; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

16. The terminal device according to any of claims 9-15, wherein said sending unit is further configured to send LOS detection capability information of the terminal device to the location server; the LOS detection capability information includes one or more of: whether the terminal equipment supports LOS detection at a single frequency point or multiple frequency points, the maximum number of channels of the LOS detection supported by the terminal equipment at the single frequency point or the multiple frequency points, the LOS detection algorithm supported by the terminal equipment and the confidence of the LOS detection algorithm supported by the terminal equipment.

17. A serving access network apparatus, comprising:

a receiving unit, configured to receive positioning measurement information from a terminal device; the positioning measurement information includes: the terminal equipment determines one or more positioning measurement results based on a positioning reference signal and line of sight (LOS) status information respectively corresponding to the one or more positioning measurement results;

and the sending unit is used for sending the positioning measurement information to a positioning server.

18. The serving access network apparatus of claim 17, wherein the receiving unit is further configured to receive indication information from the positioning server;

the sending unit is further configured to send the indication information to the terminal device; the indication information is used for indicating the terminal equipment to carry out positioning measurement and LOS detection.

19. A communication device, comprising: at least one processor;

the processor for executing a computer program or instructions stored in the memory to cause the terminal device to perform the method of any one of claims 1-8.

20. A communication system, comprising: the service access network device and the positioning server according to claim 17 or 18;

and the positioning server selects one or more positioning measurement results to determine the position information of the terminal equipment according to the LOS state information in the positioning measurement information.