CN116112863A

CN116112863A - Signal propagation type determining method, device and storage medium

Info

Publication number: CN116112863A
Application number: CN202111327736.6A
Authority: CN
Inventors: 李雨晴; 齐望东; 黄永明; 王绍磊; 许航天; 贾兴华
Original assignee: Network Communication and Security Zijinshan Laboratory
Current assignee: Network Communication and Security Zijinshan Laboratory
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2023-05-12

Abstract

The embodiment of the application provides a signal propagation type determining method, a signal propagation type determining device and a storage medium. The method comprises the following steps: determining a target decision threshold from assistance information associated with the UE; and determining the signal propagation type between the UE and the access network element based on the target decision threshold. The embodiment of the application provides a method, a device and a storage medium for determining signal propagation types, which are used for acquiring auxiliary information related to UE (user equipment), determining a judgment threshold according to the auxiliary information, and determining the signal propagation types between the UE and an access network element according to the obtained judgment threshold, so that the accuracy of signal propagation type judgment between the UE and the access network element is improved.

Description

Signal propagation type determining method, device and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method and apparatus for determining a signal propagation type, and a storage medium.

Background

With the rapid development of industrial internet of things and internet of vehicles, the high-precision positioning based on the fifth generation mobile communication (the 5th generation mobile communication, 5G) becomes an indispensable key service for terminals such as unmanned vehicles, intelligent robots and the like. When there is an obstacle between the gNB network element/transmission receiving point (Transmitting Receiving Point, TRP) and the User Equipment (UE), the linear path of the signal wireless transmission is damaged, and can only be propagated through Non-Line of Sight (NLOS) such as refraction or reflection. The signal in NLoS propagation experiences additional time and distance compared to Line-of-Sight (LoS) propagation, creating a signal angle of arrival bias, and also causing additional power loss. In many application scenarios of high-precision positioning, there is a problem of NLoS propagation, such as urban environment, in-building and underground tunnel, when NLoS propagation occurs, if NLoS propagation is not identified, but measurement information is directly used for positioning, then positioning precision will be seriously reduced.

In the existing propagation type determining method, a characteristic value for LoS/NLoS judgment is usually calculated according to a positioning reference signal, a fixed LoS/NLoS judgment threshold value is set, and then binary hypothesis test is carried out according to the judgment threshold value and the characteristic value to obtain a judgment result, however, with the continuous change of a use scene and conditions, the technical problem that the judgment result is inaccurate occurs.

Disclosure of Invention

The embodiment of the application provides a method, a device and a storage medium for determining a signal propagation type, which are used for solving the technical problem that a signal propagation type judgment result is not accurate enough in the prior art.

In a first aspect, an embodiment of the present application provides a method for determining a signal propagation type, including:

determining a target decision threshold from assistance information associated with the UE;

and determining the signal propagation type between the UE and the access network element based on the target decision threshold.

In some embodiments, the assistance information is speed information of the UE.

In some embodiments, before the determining the target decision threshold according to the assistance information associated with the UE, the method further comprises:

and determining the speed information of the UE by utilizing a self positioning module.

Acquiring the speed information of the UE sent by the access network element; the speed information of the UE is determined by the access network element based on the context information of the UE.

acquiring speed information of the UE sent by a core network element; the speed information of the UE is determined by the core network element based on context information of the UE.

In some embodiments, the context information of the UE includes a plurality of location information of the UE that is continuously recorded.

In some embodiments, the speed information includes one or more of the following:

a speed value;

a speed interval;

a speed grade.

In some embodiments, the determining the target decision threshold from assistance information associated with the UE comprises:

acquiring the auxiliary information;

matching the target judgment threshold value corresponding to the auxiliary information from a target mapping relation table; and the target mapping relation table stores a one-to-one correspondence relation between the auxiliary information and the judgment threshold value.

In some embodiments, after determining the signal propagation type between the UE and the access network element based on the target decision threshold, further comprising:

Transmitting the signal propagation type to an LMF network element; the signal propagation type is used for the LMF network element to determine the position information of the UE.

In some embodiments, before determining the signal propagation type between the UE and the access network element based on the target decision threshold, further comprising:

acquiring first indication information sent by an LMF network element; the first indication information is used to request the signal propagation type.

In some embodiments, the assistance information is capability information of the UE.

In some embodiments, the assistance information is type information of the UE.

In a second aspect, an embodiment of the present application provides a signal propagation type determining method, including:

sending first indication information; the first indication information is used for indicating a UE or an access network element to report a signal propagation type between the UE and the access network element; the signal propagation type is determined by the UE or the access network element based on assistance information associated with the UE.

In some embodiments, further comprising:

and sending the auxiliary information to the UE.

In some embodiments, further comprising:

acquiring first request information sent by the UE or the access network element; the first request information is used for requesting the auxiliary information.

In a third aspect, embodiments of the present application provide an electronic device including a memory, a transceiver, and a processor;

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

In some embodiments, the assistance information is speed information of the UE.

a speed value;

a speed interval;

a speed grade.

acquiring the auxiliary information;

In some embodiments, the assistance information is type information of the UE.

In a fourth aspect, embodiments of the present application provide an LMF network element, including a memory, a transceiver, and a processor;

In some embodiments, further comprising:

and sending the auxiliary information to the UE.

In some embodiments, further comprising:

In a fifth aspect, embodiments of the present application provide a signal propagation type determining apparatus, including:

a threshold validation module for determining a target decision threshold based on assistance information associated with the UE;

and the type determining module is used for determining the signal propagation type between the UE and the access network element based on the target decision threshold value.

In a sixth aspect, embodiments of the present application provide a signal propagation type determining apparatus, including:

the sending module is used for sending the first indication information; the first indication information is used for indicating a UE or an access network element to report a signal propagation type between the UE and the access network element; the signal propagation type is determined by the UE or the access network element based on assistance information associated with the UE.

In a seventh aspect, embodiments of the present application further provide a processor-readable storage medium storing a computer program for causing the processor to perform the steps of the signal propagation type determining method according to the first or second aspect as described above.

According to the signal propagation type determining method, device and storage medium, auxiliary information related to the UE is acquired, the judgment threshold value is determined according to the auxiliary information, and then the signal propagation type between the UE and the access network element is determined according to the obtained judgment threshold value, so that the accuracy of signal propagation type judgment between the UE and the access network element is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of a signal propagation type determining method according to an embodiment of the present application;

FIG. 2 is a flow chart of a decision threshold algorithm of a signal propagation type determination method provided in an embodiment of the present application;

fig. 3 is one of signaling interaction diagrams of a signal propagation type determining method provided in an embodiment of the present application;

FIG. 4 is a second signaling diagram illustrating a method for determining a propagation type of a signal according to an embodiment of the present application;

fig. 5 is a third signaling interaction diagram of the signal propagation type determining method provided in the embodiment of the present application;

fig. 6 is a fourth signaling interaction diagram of a signal propagation type determining method provided in an embodiment of the present application;

FIG. 7 is a second flow chart of a method for determining a propagation type of a signal according to an embodiment of the present disclosure;

Fig. 8 is a NRPPa protocol positioning signaling flow chart provided in an embodiment of the present application;

fig. 9 is a UE speed acquisition signaling flow chart for NRPPa protocol positioning provided in an embodiment of the present application;

fig. 10 is a flow chart of LPP protocol positioning signaling provided in an embodiment of the present application;

fig. 11 is a UE speed acquisition signaling flow chart for LPP protocol positioning provided in an embodiment of the present application;

fig. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of an LMF network element provided in an embodiment of the present application;

fig. 14 is one of schematic structural diagrams of a signal propagation type determining apparatus provided in an embodiment of the present application;

fig. 15 is a second schematic structural diagram of a signal propagation type determining apparatus according to an embodiment of the present application.

Detailed Description

The existing LoS/NLoS decision method generally needs to calculate a characteristic value for LoS/NLoS decision according to a positioning reference signal, set a fixed LoS/NLoS decision threshold, and then perform binary hypothesis test according to the decision threshold and the characteristic value to obtain a decision result.

However, in actual use, as the UE speed changes, the value range of the characteristic value under LoS/NLoS transmission also changes, so that the accuracy of LoS/NLoS identification is seriously reduced due to the use of a fixed threshold.

In view of the above technical problems, the embodiments of the present application determine a LoS/NLoS decision threshold by using auxiliary information associated with a UE, and determine a signal propagation type between the UE and an access network element according to the decision threshold.

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

Fig. 1 is one of flow diagrams of a signal propagation type determining method provided by an embodiment of the present application, as shown in fig. 1, where an execution body of the signal propagation type determining method may be a UE or a gNB network element or a TRP, and the method includes:

step 101, determining a target decision threshold according to auxiliary information associated with the UE.

Specifically, in the embodiment of the present application, the decision threshold is not fixed, and after the UE or the gNB network element acquires the auxiliary information associated with the UE, the decision threshold is determined according to the auxiliary information.

In some embodiments, further comprising:

the auxiliary information is speed information of the UE.

For example, the auxiliary information associated with the UE may be speed information of the UE, by acquiring the speed information of the UE, and generating a corresponding target decision threshold according to the speed information.

According to the method and the device for judging the signal propagation type, the speed information of the UE is used as auxiliary information, so that the accuracy of judging the signal propagation type can be further improved.

a speed value;

a speed interval;

a speed grade.

For example, when the UE has a condition for facilitating speed measurement, the speed information may be a speed value, and the accurate decision threshold may be determined according to the accurate speed value.

For another example, when the UE is in a condition that is unfavorable for acquiring the speed information, such as bad network signals, the speed information may be divided into a certain speed interval, or may be divided into a low speed, a medium speed, and a high speed.

According to the method and the device for judging the signal propagation type, through obtaining various speed information and generating the judgment threshold according to the speed information, corresponding speed information can be selected according to the environment, and the accuracy of judging the signal propagation type is further improved.

In some embodiments, further comprising:

The auxiliary information is capability information of the UE.

For example, the UE-associated assistance information may also be capability information of the UE, such as whether the UE supports radio access technology (Radio Access Technology, RAT), frequency bands supported by the UE, power level of the UE, whether the UE supports carrier aggregation (Carrier Aggregation, CA), whether the UE supports single wireless voice call continuity (Single Radio Voice Call Continuity, SRVCC), algorithm type supported by the UE, and the like.

And generating a corresponding decision threshold according to the capability information by acquiring the capability information of the UE.

According to the method and the device for judging the signal propagation type, the capability information associated with the UE is obtained, the judgment threshold value is generated according to the capability information, and the accuracy of judging the signal propagation type can be improved according to the capability information of the UE.

In some embodiments, further comprising:

the auxiliary information is type information of the UE.

For example, the auxiliary information associated with the UE may also be type information of the UE, and the type information may be a mobile phone, an intelligent terminal, a multimedia device, a streaming media device, and so on.

And generating a corresponding judgment threshold value according to the type information by acquiring the type information of the UE.

According to the embodiment of the application, the type information associated with the UE is acquired, the judgment threshold value is generated according to the type information, and the signal propagation type judgment can be more accurately made according to the type information of the UE.

For example, the assistance information associated with the UE may also be a type of traffic performed by the UE, capability class information of the UE, etc.

The service type may be sparse packet service, real-time transceiving service, etc. The transmission interval of adjacent data packets of sparse packet service may be tens of seconds, minutes or even tens of minutes.

The capability class information indicates the data processing capability (download, upload rate), maximum space division multiplexing, modulation coding capability, etc. supported by the terminal.

The decision threshold is used for deciding the LoS/NLoS propagation mode.

According to the embodiment of the application, the decision threshold is determined by using the auxiliary information of the UE, and the corresponding decision threshold is determined according to different auxiliary information, so that the accuracy of the decision threshold is further improved.

In some embodiments, determining the target decision threshold from assistance information associated with the UE comprises:

acquiring auxiliary information;

matching a target judgment threshold value corresponding to the auxiliary information from a target mapping relation table; the target mapping relation table stores a one-to-one correspondence relation between the auxiliary information and the decision threshold value.

Specifically, after the UE or the gNB network element or the TRP acquires the auxiliary information, matching a target decision threshold corresponding to the auxiliary information from a target mapping relation table according to the type of the auxiliary information; the target mapping relation table stores a one-to-one correspondence relation between the auxiliary information and the decision threshold value.

For example, the auxiliary information associated with the UE may be speed information, and the target mapping relationship table stores decision thresholds corresponding to different speed values, or decision thresholds corresponding to different speed intervals.

For example, the UE or the gNB network element is deployed with an antenna array, which is composed of N antennas, without loss of generality. The current positioning system based on 5G adopts a broadband signal for positioning, divides the positioning signal into K frequency bands on a frequency domain, and divides the UE speed into Q intervals.

V ₁ ＝{v|v∈[v _min ,v ₁ )}，...,V _q ＝{v|v∈[v _q-1 ,v _q )},...,V _Q ＝{v|v∈[v _Q-1 ,v _max )},q＝1,2，...，Q

The corresponding decision threshold is ρ _th ¹ ，…，ρ _th ^q ，…，ρ _th ^Q ，q＝1,2,…Q。

According to the embodiment of the application, the one-to-one correspondence table stored with the auxiliary information and the judgment threshold value is established, and the judgment threshold value corresponding to the auxiliary information is matched from the target mapping relation table, so that the judgment speed of the signal propagation type can be improved, and the determination of the signal propagation type is facilitated.

Step 102, determining the signal propagation type between the UE and the access network element based on the target decision threshold.

Specifically, in the embodiment of the present application, fig. 2 is a flowchart of a decision threshold algorithm of the signal propagation type determining method provided in the embodiment of the present application, and after the decision threshold is obtained, as shown in fig. 2, the signal propagation type between the UE and the access network element may be obtained as follows.

Firstly, the UE or the gNB network element continuously receives positioning reference signals, and pre-processes the positioning reference signals to obtain a channel frequency domain response matrix. Then, the antennas in the antenna array are combined two by two, the phase difference variance of the channel frequency domain response of each frequency band in the channel frequency domain response of each combined two antennas is calculated, and the phase difference variance factor of the combination of the antennas is obtained. And then taking the median of the phase difference variance factors of all antenna combinations as the LoS/NLoS judgment characteristic value. And finally, according to the UE speed information, selecting a corresponding judgment threshold value for comparison, and making LoS/NLoS judgment.

Wherein the access network element may be a transmitting receiving point TRP or gNB network element.

For example, it can be obtained as follows:

step 1, a positioning base station/UE receives a positioning reference signal, preprocesses the signal and outputs the signal as a channel frequency domain response matrix containing channel information. Let N, n=1, 2, … N channel frequency domain response matrix output at antenna time t be H _n ^t ,t＝1,2,3, …, wherein the phase of the channel frequency domain response of the kth frequency band is denoted as

Step 2, selecting T channel frequency domain response matrixes in adjacent T time points, and calculating the phase difference variance of the channel frequency domain response of the kth frequency band in the channel frequency domain responses of m and N (m is more than or equal to 1 and less than N is more than or equal to N), wherein the phase difference variance formula is as follows:

In the method, in the process of the invention,

the phase difference variance is T, the number of adjacent time points is T, the antenna time is T, m is an antenna, n is an antenna, and k is the frequency band number. />

Phase of channel frequency domain response for k-th frequency band of m antenna, +.>

The phase of the channel frequency domain response for the kth frequency band of the n antennas.

Step 3, setting up an average value formula of T channel frequency domain response amplitudes of the kth frequency band of m, N (m is more than or equal to 1 and less than N is more than or equal to N) two antennas, wherein the average value formula is as follows:

in the method, in the process of the invention,

the average value of the T channel frequency domain response amplitudes of the kth frequency band of the m and n antennas,

channel frequency domain response matrix output for m antenna time instants t +.>

And outputting a channel frequency domain response matrix for n antenna moments t.

Taking the average value of the T channel frequency domain response amplitudes of the kth frequency band as a weight value, and carrying out weighted summation on the phase difference variance of the channel frequency domain response of each frequency band to obtain a phase difference variance factor between m and n antennas, wherein the formula of the phase difference variance factor is as follows:

wherein ρ is _mn Is the phase difference variance factor between m and n antennas,

for the variance of phase difference>

The average value of the frequency domain response amplitude of T channels of the kth frequency band of the m and n antennas.

Step 4, taking the median of the phase difference variance factors of all possible antenna combinations as the final LoS/NLoS decision eigenvalue ρ=med (ρ _mn ) Where med (·) is the median operator.

Step 5, according to the location management function (Location Management Function, LMF)

Provided UE speed information V _q Selecting corresponding characteristic value judgment threshold value

If->

Then determine LoS propagation, if +.>

Then NLoS propagation is determined.

According to the signal propagation type determining method provided by the embodiment of the application, the auxiliary information related to the UE is acquired, the judgment threshold value is determined according to the auxiliary information, and the signal propagation type between the UE and the access network element is determined according to the obtained judgment threshold value, so that the accuracy of signal propagation type judgment between the UE and the access network element is improved.

transmitting the signal propagation type to the LMF network element; the signal propagation type is used for the LMF network element to determine the location information of the UE.

Specifically, fig. 3 is one of signaling interaction diagrams of the signal propagation type determining method provided in the embodiment of the present application, and after determining a signal propagation type between a UE and an access network element, as shown in fig. 3, the UE or the gNB network element sends the signal propagation type to an LMF network element. The signal propagation type is used for the LMF network element to determine location information of the UE.

For example, the signal propagation type may be LoS or NLoS, if LoS propagation is performed, the LoS/NLoS indication information reported to the LMF network element is 1, and if NLoS is performed, the LoS/NLoS indication information reported to the LMF network element is 0.

The LMF network element receives the signal propagation type.

According to the embodiment of the application, the signal propagation type is sent to the LMF network element, and the UE is positioned according to the signal propagation type, so that the positioning accuracy of the UE is improved.

In some embodiments, before determining the target decision threshold from the assistance information associated with the UE, further comprising:

Specifically, in this embodiment, the execution body is UE, and before determining the target decision threshold according to the auxiliary information associated with the UE, the auxiliary information associated with the UE needs to be acquired first, and the auxiliary information may be acquired by the UE by using its own positioning module.

For example, a vehicle-mounted terminal, a mobile device and the like with a positioning function can quickly acquire own speed information through a self-positioning module.

According to the method and the device for determining the speed information of the UE, the speed information of the UE is determined by the positioning module, the purpose of rapidly acquiring the speed information can be achieved, and the determination of the signal propagation type is facilitated.

Specifically, in the embodiment of the present application, fig. 4 is a second signaling interaction diagram of the signal propagation type determining method provided in the embodiment of the present application, as shown in fig. 4, the executing body UE does not have a speed measurement function, and may obtain speed information of the UE from an access network element, where the speed information of the UE is determined by the access network element based on the context information of the UE.

For example, the access network element may be an access and mobility management function (Access and Mobility Management Function, AMF), and the approximate speed of the UE may be obtained through analysis of the location of the UE access by the AMF network element, and time difference information.

For another example, the access network element may be a gNB network element or a transmitting/receiving point (Transmitting Receiving Point, TRP), and obtain the speed information of the UE by obtaining the difference between the base station and the cell to which the UE is connected and obtaining the moving position and then obtaining the time difference information.

The moving distance of the UE can be acquired through the beam difference angle of the base station where the UE is located, and the speed information of the UE can be acquired through the time difference information.

According to the method and the device for determining the signal propagation type, the UE which does not have the speed measurement function is enabled to acquire the speed information of the UE by acquiring the speed information of the UE transmitted by the network element of the access network, so that the determination of the signal propagation type is facilitated.

For example, the context information of the UE includes a plurality of continuously recorded location information of the UE, and accurate speed information of the UE is obtained by comparing time difference information of the plurality of locations of the UE.

According to the method and the device for determining the speed of the UE, the speed information of the UE, which is sent by the network element of the access network, is obtained, so that the speed information of the UE is provided for the UE which does not have a speed measuring function, and the generation of a target judgment threshold value is facilitated.

acquiring speed information of UE sent by a core network element; the speed information of the UE is determined by the core network element based on the context information of the UE.

Specifically, in the embodiment of the present application, fig. 5 is a third signaling interaction diagram of the signal propagation type determining method provided in the embodiment of the present application, as shown in fig. 5, when the execution body is a gNB network element or a TRP, the gNB/TRP network element obtains speed information of the UE sent by the core network element; the speed information of the UE is determined by a core network element based on context information of the UE.

The position of the UE is recorded for a plurality of times, and the rough speed of the UE is calculated according to the position.

For example, before acquiring the UE speed information sent by the core network element, the LMF network element may further send measurement request information to the gNB/TRP, where the measurement request information is used to request the gNB/TRP to report the UE speed information, the gNB/TRP sends the UE speed information to the LMF network element, and the LMF network element receives the UE speed information and marks the UE speed information.

According to the method, the device and the system, the speed information of the UE sent by the core network element is obtained, accuracy of the speed information is further improved, and generation of the target judgment threshold value is facilitated.

acquiring first indication information sent by an LMF network element; the first indication information is for a request signal propagation type.

Specifically, fig. 6 is a signaling interaction diagram of a signal propagation type determining method provided in the embodiment of the present application, as shown in fig. 6, in this embodiment, before acquiring speed information of a UE and determining a target decision threshold according to the speed information, the UE or the gNB first sends first request information to an LMF network element, where the first request information is used to request auxiliary information associated with the UE.

After the LMF network element acquires the first request information, auxiliary information associated with the UE is sent to the UE.

Meanwhile, the LMF network element may also send first indication information to the UE or the gNB network element.

The UE or the gNB network element acquires first indication information sent by the LMF network element, wherein the first indication information is used for requesting a signal propagation type.

After receiving the first indication information, determining a target decision threshold according to auxiliary information associated with the UE, and determining a signal propagation type between the UE and an access network element based on the target decision threshold.

According to the embodiment of the application, the accuracy of signal propagation judgment can be improved by acquiring the first indication information sent by the LMF network element and performing signal propagation judgment according to the information.

Fig. 7 is a second flowchart of a signal propagation type determining method according to the embodiment of the present application, as shown in fig. 7, where an execution body of the signal propagation type determining method may be an LMF network element. The method comprises the following steps:

step 701, sending first indication information; the first indication information is used for indicating a UE or an access network element to report a signal propagation type between the UE and the access network element; the signal propagation type is determined by the UE or the access network element based on assistance information associated with the UE.

In some embodiments, further comprising:

and sending the auxiliary information to the UE.

In some embodiments, further comprising:

Specifically, the method for determining a signal propagation type provided in this embodiment may refer to the embodiment of the method for determining a signal propagation type of a UE or a gNB network element by using the execution body, and may achieve the same technical effects, and details of the same parts and advantages as those of the corresponding method embodiment in this embodiment are not described herein.

In order to more clearly describe the technical solutions of the present application, the following examples are given for the above embodiments.

For example, fig. 8 is a NRPPa protocol positioning signaling flow provided in the embodiment of the present application, as shown in fig. 8, under a new air interface positioning protocol a (New Radio Positioning Protocol A, NRPPa), first, the LMF network element confirms the required TRP configuration information, and indicates the required TRP configuration by sending NRPPa TRP information request signaling to the gNB network element. The gNB provides the LMF network element with TRP configuration information required by the LMF network element by sending NRPPa TRP information feedback signaling to the LMF network element.

Secondly, the UE requests the LMF network element to provide auxiliary data through the first request information, wherein the auxiliary data is the speed information of the UE.

Then, the LMF network element provides auxiliary information for the UE, the auxiliary information is speed information of the UE, the UE speed does not need to be very accurate, and the UE speed can be divided into a low speed, a medium speed, a high speed, and the like, or a certain speed interval can be divided, and the LMF network element only needs to provide an interval in which the UE speed is located.

Then, the LMF network element sends NRPPa positioning request signaling to the service gNB/TRP, requesting Uplink-Sounding Reference Signal (UL-SRS) configuration information of the UE.

Then, the serving gNB/TRP confirms the available resources of the UL-SRS positioning reference signal and configures the end user using the resources in 5 a.

Then, the serving gNB/TRP provides configuration information of the UL-SRS positioning reference signal to the LMF network element through NRPPa positioning response signaling.

Then, the LMF network element requests activation of SRS location reference signals of the UE by transmitting NRPPa request location activation signaling to the serving gNB/TRP of the UE. Subsequently, gNB/TRP activates SRS signal transmission of UE and sends NRPPa positioning activation response signaling to LMF network element, and UE starts transmitting UL-SRS positioning reference signal.

Then, the LMF network element designates a corresponding TRP for measurement in first indication information including an Angle of Arrival (UL-Angle-of-Arrival, UL-AOA), an uplink relative Arrival time (UL-Time Difference of Arrival, UL-RTOA), or the like, the first indication information being used to request LoS/NLoS indication information.

Then, the gNB/TRP specified by the first indication information measures the UL-SRS positioning reference signal from the end user.

Finally, reporting SRS measurement information of the UE to the LMF network element by gNB/TRP appointed by the first indication information, and adding LoS/NLoS indication information in the information. The gNB/TRP calculates a characteristic value for LoS/NLoS judgment based on SRS measurement, sets a LoS/NLoS judgment threshold according to UE speed information provided by an LMF network element, judges whether a propagation path of an SRS signal is LoS or NLoS through binary hypothesis test based on the characteristic value and the threshold, and then reports LoS/NLoS indication information to the LMF network element through the gNB/TRP in a measurement message.

The LoS/NLoS indication information may be binarized data, the value is 0 or 1, if the value is LoS propagation, the LoS/NLoS indication information reported to the LMF network element by the gNB/TRP in the measurement response message is 1, and if the value is NLoS propagation, the LoS/NLoS indication information reported to the LMF network element by the gNB/TRP in the measurement response message is 0.

Wherein, in providing the auxiliary information signaling, the LMF network element is required to provide the speed information of the UE as the auxiliary information, and the LMF network element obtains the speed of the UE by the following ways:

the core network element LMF continuously records the positions of the UE for a plurality of times, and the rough speed of the UE is calculated according to the positions.

In order to enable the LMF network element to record speed information, a UE speed request is added in first indication information of NRPPa protocol, a UE speed feedback field is added in NRPPa measurement information to provide UE speed for the LMF network element, fig. 9 is a UE speed acquisition signaling flow chart of NRPPa protocol positioning provided in the embodiment of the present application, and as shown in fig. 9, first, the LMF network element requests measurement UL information from the gNB/TRP in the first indication information, where the information includes a request for UE speed information to request the gNB/TRP to report UE speed.

Then, the gNB/TRP measures SRS positioning reference signals from the end user.

Finally, the gNB/TRP provides SRS measurement information to the LMF network element in NRPPa measurement information signaling, wherein the SRS measurement information comprises UE speed information.

After the LMF network element acquires the SRS measurement information, the LMF network element makes corresponding marks and records the speed information, thereby being beneficial to improving the accuracy of speed information acquisition.

According to the method and the device for determining the signal propagation type of the access network element, the speed information error of the UE is reduced by acquiring the plurality of positioning reference signals of the terminal user, the accuracy of the target determination threshold is further improved, and the accuracy of the signal propagation type determination between the UE and the access network element is improved.

For another example, fig. 10 is a flow chart of LPP protocol positioning signaling provided in an embodiment of the present application, as shown in fig. 10, under the LTE positioning protocol (LTE Presentation Protocol, LPP), first, the LMF network element sends an LPP positioning capability request signaling to the UE, where the LMF network element may specify a required positioning capability type. The positioning capability type may be an LPP positioning method, an assistance data type, a capability to handle a plurality of LPP signaling, etc.

The UE then provides its location capability to the LMF network element via LPP location capability reporting signaling.

Then, the UE requests the LMF network element to provide the assistance information through LPP request assistance data signaling (first request information).

Then, the LMF network element provides auxiliary information for the UE, where the auxiliary information includes UE speed information, and the UE speed does not need to be very accurate, and may be divided into a low speed, a medium speed, a high speed, and the like, or may be divided into a certain speed interval, and the LMF network element only needs to provide an interval where the UE speed is located.

Then, the LMF network element sends first indication information to the UE, requests the UE to report information such as a downlink departure angle, and adds a LoS/NLoS indication request in the request information type.

Finally, the UE sends signal propagation type information to the LMF network element, wherein the information comprises downlink positioning reference signal received power measurement, loS/NLoS indication and the like. The UE calculates a characteristic value for LoS/NLoS judgment based on PRS measurement, sets a LoS/NLoS judgment threshold according to UE speed information provided by LMF, judges whether the PRS propagation condition is LoS or NLoS through binary hypothesis test based on the characteristic value and the threshold, and then provides LoS/NLoS indication information in the provided position information.

Specifically, if LoS propagation is performed, the LoS/NLoS indication information provided by the UE to the LMF network element in the measurement location information is 1, and if NLoS is performed, the LoS/NLoS indication information provided by the UE to the LMF in the measurement location information is 0.

Wherein, in the LPP providing auxiliary information signaling, the LMF network element is required to provide the speed information of the UE as auxiliary information, and the LMF network element obtains the speed of the UE by the following manner:

In order to enable the LMF network element to record the speed information, a UE speed request is added in the first indication information, a UE speed feedback field is added in the auxiliary information to provide the UE speed for the LMF network element, and fig. 11 is a UE speed acquisition signaling flow chart of LPP protocol positioning provided in the embodiment of the present application, as shown in fig. 11, first, the LMF network element requests the auxiliary information of the UE from the UE by sending the first indication information to the UE, including requesting the UE speed.

Then, the UE transmits auxiliary information of the UE, including UE speed information, to the LMF network element.

The LMF marks after receiving the auxiliary information of the UE, records the speed information, can play a role in recognition, and is beneficial to improving the accuracy of speed information acquisition.

According to the method and the device for determining the signal propagation type between the UE and the access network element, the auxiliary information associated with the UE is acquired, the target judgment threshold value is determined according to the auxiliary information, and the signal propagation type judgment accuracy between the UE and the access network element is improved when the signal propagation type between the UE and the access network element is determined according to the obtained target judgment threshold value.

Fig. 12 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, where the electronic device includes a terminal, and, for example, as shown in fig. 12, the electronic device includes a memory 1202, a transceiver 1200, and a processor 1201;

a memory 1202 for storing a computer program; a transceiver 1200 for transceiving data under the control of the processor; a processor 1201 for reading the computer program in the memory and performing the following operations:

Specifically, the transceiver 1200 is used to receive and transmit data under the control of the processor 1201.

Where in FIG. 12, a bus architecture may be comprised of any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1201 and various circuits of memory represented by the memory 1202, are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1200 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The user interface 1203 may also be an interface capable of interfacing with an inscribed desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1202 may store data used by the processor 1201 in performing operations.

In some embodiments, processor 1201 may be a CPU (Central processing Unit), an application specific Integrated Circuit (Application Specific Integrated Circuit, ASIC), a Field programmable Gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), which may also employ a multi-core architecture.

The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.

In some embodiments, the assistance information is speed information of the UE.

a speed value;

a speed interval;

a speed grade.

acquiring the auxiliary information;

In some embodiments, the assistance information is type information of the UE.

Specifically, the electronic device provided in this embodiment can implement all the method steps implemented by the method embodiment in which the execution body is a UE or a gNB network element, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

Fig. 13 is a schematic structural diagram of an LMF network element provided in the embodiment of the present application, as shown in fig. 13, where the network side device includes a memory 1302, a transceiver 1300, and a processor 1301, where:

a memory 1302 for storing a computer program; a transceiver 1300 for transceiving data under the control of the processor 1301; a processor 1301 for reading the computer program in the memory 1302 and performing the following operations:

Specifically, transceiver 1300 is configured to receive and transmit data under the control of processor 1301.

Where in FIG. 13, a bus architecture may comprise any number of interconnected buses and bridges, with one or more processors, represented in particular by processor 1301, and various circuits of memory, represented by memory 1302, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1300 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 1301 is responsible for managing the bus architecture and general processing, and the memory 1302 may store data used by the processor 1301 in performing operations.

Processor 1301 may be a Central Processing Unit (CPU), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or complex programmable logic device (Complex Programmable Logic Device, CPLD), and may also employ a multi-core architecture.

In some embodiments, further comprising:

and sending the auxiliary information to the UE.

In some embodiments, further comprising:

Specifically, the LMF network element provided in this embodiment can implement all the method steps implemented by the method embodiment in which the execution body is an LMF network element, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted herein.

Fig. 14 is one of schematic structural diagrams of a signal propagation type determining apparatus provided in an embodiment of the present application, as shown in fig. 14, the embodiment of the present application provides a signal propagation type determining apparatus including a threshold value confirmation module 1401 and a type determining module 1402, wherein: a threshold validation module for determining a target decision threshold based on assistance information associated with the UE; and the type determining module is used for determining the signal propagation type between the UE and the access network element based on the target decision threshold value.

In some embodiments, the assistance information is speed information of the UE.

In some embodiments, a first speed module is also included; the first speed module is used for determining speed information of the UE by utilizing a positioning module of the first speed module.

In some embodiments, a second speed module is also included; the second speed module is used for acquiring the speed information of the UE sent by the access network element; the speed information of the UE is determined by the access network element based on the context information of the UE.

In some embodiments, a third speed module is also included; the third speed module is used for acquiring the speed information of the UE sent by a core network element; the speed information of the UE is determined by the core network element based on context information of the UE.

a speed value;

a speed interval;

a speed grade.

In some embodiments, the threshold validation module includes an acquisition sub-module and a matching sub-module, wherein:

the acquisition sub-module is used for acquiring the auxiliary information; the matching submodule is used for matching the target judgment threshold value corresponding to the auxiliary information from a target mapping relation table; and the target mapping relation table stores a one-to-one correspondence relation between the auxiliary information and the judgment threshold value.

In some embodiments, further comprising a first transmitting module; the first sending module is used for sending the signal propagation type to the LMF network element; the signal propagation type is used for the LMF network element to determine the position information of the UE.

In some embodiments, the method further comprises a first acquisition module; the first acquisition module is used for acquiring first indication information sent by the LMF network element; the first indication information is used to request the signal propagation type.

In some embodiments, the assistance information is type information of the UE.

Specifically, the signal propagation type determining device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a UE or a gNB network element, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

Fig. 15 is a second schematic structural diagram of a signal propagation type determining apparatus according to an embodiment of the present application, and as shown in fig. 15, the embodiment of the present application provides a signal propagation type determining apparatus including a transmitting module 1501; the sending module 1501 is configured to send first indication information; the first indication information is used for indicating a UE or an access network element to report a signal propagation type between the UE and the access network element; the signal propagation type is determined by the UE or the access network element based on assistance information associated with the UE.

In some embodiments, further comprising a transmit sub-module; and the sending sub-module is used for sending the auxiliary information to the UE.

In some embodiments, the method further includes an obtaining submodule, where the obtaining submodule obtains first request information sent by the UE or the access network element; the first request information is used for requesting the auxiliary information.

Specifically, the signal propagation type determining device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is an LMF network element, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

It should be noted that the division of the units/modules in the embodiments of the present application is merely a logic function division, and other division manners may be implemented in practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

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

In some embodiments, there is also provided a processor-readable storage medium storing a computer program for causing the processor to perform the method provided in the above embodiments, including:

Or comprises:

It should be noted that: the processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.

In addition, it should be noted that: the terms "first," "second," and the like in the embodiments of the present application are used for distinguishing between similar objects and not for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more.

In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

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

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable 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 processor-executable instructions may also be stored in a processor-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 processor-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 processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A method for determining a type of signal propagation, comprising:

2. The signal propagation type determining method of claim 1, wherein the assistance information is velocity information of the UE.

3. The method of claim 2, wherein before determining the target decision threshold based on the assistance information associated with the UE, further comprising:

4. The method of claim 2, wherein before determining the target decision threshold based on the assistance information associated with the UE, further comprising:

5. The method of claim 2, wherein before determining the target decision threshold based on the assistance information associated with the UE, further comprising:

6. The signal propagation type determining method according to any one of claims 4 or 5, wherein the context information of the UE includes a plurality of location information of the UE that are continuously recorded.

7. The signal propagation type determining method according to any one of claims 2 to 5, wherein the speed information includes one or more of the following information:

a speed value;

a speed interval;

a speed grade.

8. The method of claim 1, wherein the determining the target decision threshold based on the assistance information associated with the UE comprises:

acquiring the auxiliary information;

9. The method according to claim 1, further comprising, after determining the signal propagation type between the UE and an access network element based on the target decision threshold:

10. The method of claim 1, further comprising, prior to determining the signal propagation type between the UE and an access network element based on the target decision threshold:

11. The signal propagation type determining method of claim 1, wherein the assistance information is capability information of the UE.

12. The signal propagation type determining method of claim 1, wherein the assistance information is type information of the UE.

13. A method for determining a type of signal propagation, comprising:

14. The signal propagation type determining method of claim 13, further comprising:

And sending the auxiliary information to the UE.

15. The signal propagation type determining method of claim 13, further comprising:

16. An electronic device comprising a memory, a transceiver, and a processor;

17. The electronic device of claim 16, wherein the assistance information is speed information of the UE.

18. The electronic device of claim 17, wherein prior to determining the target decision threshold from the assistance information associated with the UE, further comprising:

19. The electronic device of claim 17, wherein prior to determining the target decision threshold from the assistance information associated with the UE, further comprising:

20. The electronic device of claim 17, wherein prior to determining the target decision threshold from the assistance information associated with the UE, further comprising:

21. The electronic device of any of claims 19 or 20, wherein the context information of the UE comprises a plurality of location information of the UE that is continuously recorded.

22. The electronic device of any of claims 17-20, wherein the speed information comprises one or more of the following:

a speed value;

a speed interval;

a speed grade.

23. The electronic device of claim 16, wherein the determining the target decision threshold from assistance information associated with the UE comprises:

acquiring the auxiliary information;

24. The electronic device of claim 16, wherein after determining a signal propagation type between the UE and an access network element based on the target decision threshold, further comprising:

25. The electronic device of claim 16, further comprising, prior to determining a signal propagation type between the UE and an access network element based on the target decision threshold:

26. The electronic device of claim 16, wherein the assistance information is capability information of the UE.

27. The electronic device of claim 16, wherein the assistance information is type information of the UE.

28. An LMF network element, comprising a memory, a transceiver, and a processor;

29. An LMF network element as recited in claim 28, further comprising:

and sending the auxiliary information to the UE.

30. An LMF network element as recited in claim 28, further comprising:

31. A signal propagation type determining apparatus, comprising:

32. A signal propagation type determining apparatus, comprising:

33. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 15.