WO2023011438A1

WO2023011438A1 - Information transmission method, communication nodes, and storage medium

Info

Publication number: WO2023011438A1
Application number: PCT/CN2022/109587
Authority: WO
Inventors: 贺海港; 卢有雄; 邢卫民; 陈杰
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-08-05
Filing date: 2022-08-02
Publication date: 2023-02-09
Also published as: CN115707092A

Abstract

Disclosed herein are an information transmission method, communication nodes, and a storage medium. The information transmission method applied to a first communication node comprises: measuring first positioning reference signal (PRS) resources; sending feedback information and first geographical location information, wherein the first PRS resources are PRS resources used by a second communication node to send a first PRS, the feedback information comprises information to be fed back, each piece of information to be fed back corresponds to one target object and one first PRS resource among the measured first PRS resources, and the target object is an object which represents the geographic location of the first communication node or a time-frequency resource location used by the first communication node.

Description

Information transmission method, communication node and storage medium

technical field

The present application relates to the technical field of communication, for example, to an information transmission method, a communication node and a storage medium.

Background technique

In positioning, a communication node that needs to obtain its own geographic location is called a target node. For the positioning of the target node, the positioning of the target node needs the help of other communication nodes, and these other communication nodes are usually called anchor nodes.

Regardless of the anchor node or the target node, there may be multiple antenna panels. Also, the multiple antenna panels of the anchor node and/or the target node may have different geographic locations. In related positioning technologies, the information of the anchor node, that is, the first communication node, is not fully utilized to realize the positioning of the target node, resulting in poor positioning efficiency.

Contents of the invention

The present application provides an information transmission method, a communication node and a storage medium, which effectively utilize information of a first communication node during positioning, thereby improving positioning efficiency.

In the first aspect, the embodiment of the present application provides an information transmission method, which is applied to the first communication node, and the method includes:

Performing measurement on the first positioning reference signal PRS resource; sending feedback information and first geographic location information; wherein, the first PRS resource is the PRS resource used by the second communication node to send the first PRS, and the feedback information includes the PRS resource to be Feedback information, each piece of information to be fed back corresponds to a target object and a first PRS resource among the first PRS resources measured, the target object characterizes the geographic location of the first communication node or the first communication node uses The time-frequency resource location object.

In a second aspect, the embodiment of the present application provides an information transmission method, which is applied to a first communication node, and the method includes:

Sending the second PRS through the second PRS resource; sending the first geographic location information, where there is a mapping relationship between the first geographic location information and the PRS resource.

In a third aspect, an embodiment of the present application provides an information transmission method, which is applied to a second communication node, and the method includes:

Sending second geographic location information, where the second geographic location information is the location of the second antenna panel of the second communication node in a local coordinate system.

In a fourth aspect, the embodiment of the present application provides an information transmission method, which is applied to a second communication node, and the method includes:

Perform measurement on the second positioning reference signal PRS resource; report the measurement result to the upper layer; the measurement result includes one or more measurement information, each measurement information corresponds to a configuration object and a second PRS resource in the measured second PRS resource Two PRS resources, the setting object is an object representing the geographic location of the second communication node or the location of the time-frequency resource used by the second communication node.

In a fifth aspect, the embodiment of the present application provides a storage medium, the storage medium stores a computer program, and when the computer program is executed by a processor, the information transmission method described in the embodiment of the present application is implemented.

In a sixth aspect, the embodiment of the present application provides a communication node, including:

One or more processors; storage means for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors realize the The information transmission method described in the embodiment of the application.

Description of drawings

FIG. 1 is a schematic flow diagram of an information transmission method provided in an embodiment of the present application;

FIG. 2 is a schematic flowchart of an information transmission method provided by an embodiment of the present application;

FIG. 3a is a schematic flow diagram of an information transmission method provided by an embodiment of the present application;

FIG. 3b is a schematic flow diagram of an information transmission method provided by an embodiment of the present application;

FIG. 4a is a schematic diagram of a scenario of an anchor node and a target node provided by an exemplary embodiment of the present application;

FIG. 4b is a schematic diagram of a coordinate system of a target node provided by an embodiment of the present application;

FIG. 4c is a schematic diagram of interaction between a target node and an anchor node provided in an embodiment of the present application;

FIG. 4d is a schematic diagram of a first terminal mapping relationship provided by an embodiment of the present application;

FIG. 4e is a schematic diagram of a first terminal mapping relationship and second terminal measurement provided by an embodiment of the present application;

Fig. 4f is another schematic diagram of information transmission provided by the embodiment of the present application;

FIG. 4g is a schematic diagram of an interaction between an anchor node and a target node provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an information transmission device provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an information transmission device provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an information transmission device provided in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an information transmission device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a communication node provided by an embodiment of the present application.

Detailed ways

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

The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

In an exemplary embodiment, FIG. 1 is a schematic flow chart of an information transmission method provided in the embodiment of the present application. The method is applicable to the situation where the second communication node is positioned. The first communication node may be an anchor node. The second communication node may be a target node, that is, a node to be positioned. The method can be executed by an information transmission device, which can be implemented by software and/or hardware, and is generally integrated in the first communication node. As shown in Figure 1, an information transmission method provided by this application includes:

S110. Perform measurement on the first positioning reference signal PRS resource.

The first PRS resource is a PRS resource used by the second communication node to send the first PRS. Measurements are performed on the first PRS to obtain feedback information. The feedback information includes information to be fed back, and each piece of information to be fed back corresponds to a target object and a first PRS resource among the measured first PRS resources, and the target object represents the geographic location of the first communication node or the first PRS resource. An object of a time-frequency resource location used by a communication node, and the feedback information is obtained based on measurement. The target audience is not limited here.

The feedback information includes one or more pieces of information to be fed back.

S120. Send feedback information and first geographic location information.

The first geographic location information is the geographic location of the first antenna panel of the first communication node. The geographic location of the first antenna panel may be notified directly or indirectly. The direct notification is, for example, directly notifying the coordinates of the first antenna panel, and the indirect notification is, for example, notifying the distance and angle direction of the antenna panel relative to the reference geography.

The first communication node sends the feedback information and the first geographic location information to the second communication node or the server, so as to locate the second node.

The first geographic location information can be information that characterizes an absolute geographic location, or information that characterizes a relative geographic location, such as the first geographic location information, which can be coordinates (absolute geographic location), distance from a reference location, and direction information and other information (relative geographic location).

An information transmission method provided by the implementation of the present application is to measure the resource of the first positioning reference signal PRS; send feedback information and first geographic location information, and use this method to effectively use the information of the first communication node when performing positioning, For example, the feedback information improves the positioning efficiency.

On the basis of the above-mentioned embodiments, modified embodiments of the above-mentioned embodiments are proposed, and in order to simplify the description, only differences from the above-mentioned embodiments are described in the modified embodiments.

In one embodiment, the target objects include one or more of the following:

First geographic location information; a first antenna panel of the first communication node; and a second PRS resource, where the second PRS resource is a PRS resource for sending a second PRS by the first communication node.

The first antenna panel may refer to an antenna panel of the first communication node, and in this embodiment, the first communication node may include one or more first antenna panels. The second antenna panel may refer to the antenna panel of the second communication node, and in the present application, the second communication node may include one or more second antenna panels.

In an embodiment, different second PRS resources correspond to one or more of the following:

Different PRS ports; PRS resources at different times.

In this embodiment, the PRS resource may be the second PRS resource.

In an embodiment, different first PRS resources correspond to one or more of the following:

Different PRS ports; PRS resources at different times.

In this embodiment, the PRS resource may be the first PRS resource.

In one embodiment, one piece of first geographic location information is associated with one or more of the following:

A first antenna panel of the first communication node; a group of first antenna panels of the first communication node; a moment of a first antenna panel of the first communication node; A moment in time of a group of first antenna panels; wherein the group of antenna panels includes antenna panels having the same or similar geographic location. If two antenna panels have similar geographic locations, it can be considered that the distance between the two antenna panels is smaller than a threshold. The first communication node sends a plurality of first geographic location information, and each geographic location information is associated with one or more of the following: a first antenna panel; a group of first antenna panels; a moment of a first antenna panel; a group A moment of the first antenna panel.

In one embodiment, the information to be fed back includes one or more of the following:

The delay difference between a first PRS resource and a first antenna panel relative to the first reference delay; the delay between a first PRS resource and a first geographic location information relative to the second reference delay Latency; time difference between two first PRS resources corresponding to the same first geographic location information; time difference between two first geographic location information corresponding to the same first PRS resource.

The delay may be a transmission delay.

In one embodiment, the first reference delay is the measured delay of the first PRS resource in the first PRS resource and the first antenna panel in the first antenna panel, and the second reference delay is The measured time delay of the first PRS resource in the first PRS resource and the first geographic location in the first geographic location information.

Latency can be thought of as transmission delay.

The time difference between sending and receiving a first PRS resource and a second PRS resource; the time difference between sending and receiving a first PRS resource and a second PRS resource, and the difference between the first PRS resource and the second PRS resource in the measured first PRS resource The relative value of the time difference between sending and receiving of the first PRS resource in .

In one embodiment, the first communication node receives one or more PRS signals from the second communication node on one or more first PRS resources; the first communication node receives one or more PRS signals from the second PRS One or more PRS signals are sent on the resource.

A first PRS resource and a horizontal angle of arrival corresponding to the first geographic location information; a first PRS resource and a vertical angle of arrival corresponding to the first geographic location information.

In one embodiment, the method further includes: indicating that the content included in the feedback information is one or more of the following:

Time difference between sending and receiving; angle of arrival; relative delay.

In one embodiment, the method further includes indicating one or more of the following capabilities:

Feedback capability of sending and receiving time difference; feedback capability of angle of arrival; feedback capability of time delay difference.

Each piece of information to be fed back corresponds to a target object and a first PRS resource among the measured first PRS resources. In the case where the target object is the first geographic location, one or more information to be fed back is indirectly fed back through the following example: In one embodiment, the information to be fed back and the first geographic location information are included in the first geographic location information list Among them, the first geographic location information list includes N first geographic location information, N is a positive integer, and each first geographic location information in the N first geographic location information corresponds to a list of information to be fed back, and one The list of information to be fed back includes M pieces of information to be fed back, and E is a positive integer.

In one embodiment, the information to be fed back corresponding to the i-th first PRS resource and the E-th first geographic location information is the information to be fed back corresponding to the j-th first geographic location information in the first geographic location information list The jth information to be fed back in the list.

For measurement/feedback, feedback is performed for the i-th first PRS resource, and the j-th first geographic measurement. For the sending of the second PRS, the jth second PRS resource has a mapping relationship with the jth first geographic location information. The first geographic location information has a corresponding relationship with the first PRS resource, and also has a corresponding relationship with the second PRS resource.

In one embodiment, the information to be fed back includes one or more of the following: a measurement moment corresponding to a first PRS resource and a first geographic location information, relative to the first PRS resource and The time difference of the measurement moment of the first geographic location in the first geographic location information; the angle of arrival corresponding to one first PRS resource and one first geographic location information; one first PRS resource corresponding to one first geographic location information The time difference between sending and receiving positioning reference signals.

Each piece of information to be fed back corresponds to a target object and a first PRS resource among the measured first PRS resources. In the case where the target object is the first geographic location, one or more information to be fed back is indirectly fed back through the following example: In one embodiment, the information to be fed back and the first geographic location information are included in the second geographic location list, The second geographic location list includes S first geographic location information, S is a positive integer, and each geographic location in the S first geographic location information corresponds to a list composed of Z elements, Z is a positive integer, and each The elements include a first PRS resource identifier and information to be fed back.

In one embodiment, the information to be fed back corresponding to the i-th first PRS resource and the j-th first geographic location information is the PRS resource identifier corresponding to the j-th first geographic location information in the second geographic location list is the information to be fed back corresponding to the element of i.

In one embodiment, the feedback information includes:

A delay between a first PRS resource and a first geographic location information, and a time delay difference between the measured first PRS resource in the first PRS resources and the first geographic location in the first geographic location information value; a first PRS resource and an angle of arrival corresponding to a first geographic location information; a first PRS resource and a positioning reference signal corresponding to a first geographic location information The time difference between sending and receiving or the absolute value of the time difference between sending and receiving.

In an exemplary embodiment, the present application also provides an information transmission method. FIG. 2 is a schematic flowchart of an information transmission method provided in the embodiment of the present application. This method can be applied to the situation of positioning the second communication node . The method can be executed by an information transmission device, which can be implemented by software and/or hardware, and is generally integrated on the first communication node. For details not yet described in this embodiment, refer to the foregoing embodiments.

As shown in Figure 2, the information transmission method provided by this application includes:

S210. Send the second PRS by using the second PRS resource.

S220. Send first geographic location information, where there is a mapping relationship between the first geographic location information and the PRS resource.

In this embodiment, the second PRS is sent through the second PRS resource; the first geographic location information is sent, and there is a mapping relationship between the first geographic location information and the PRS resource. The information for positioning the second communication node is effectively transmitted, and the efficiency of positioning the second communication node is improved.

In one embodiment, the first geographic location information is associated with one or more of the following:

An antenna panel of the first communication node; a group of antenna panels of the first communication node; a moment of an antenna panel of the first communication node; a moment of a group of antenna panels of the first communication node .

In one embodiment, the first geographic location information is included in a geographic location list, and the geographic location list includes W pieces of first geographic location information, where W is a positive integer.

In one embodiment, the jth first geographic location information in the geographic location list corresponds to the jth second PRS resource, where j is a positive integer not greater than W.

In an embodiment, the number of first geographic location information is one or more, and the first communication node indicates, for each first geographic location information, a second PRS resource identifier mapped to the first geographic location information.

In one embodiment, the method also includes:

Indicates one of the following coordinate types:

local coordinate system and global coordinate system.

In one embodiment, the coordinate origin of the local coordinate system is the reference geographic location of the first communication node, and the reference geographic location is one of the following:

The geometric center position of the first communication node; the geographical location corresponding to one panel of the first communication node.

In one embodiment, the method includes one of the following:

The x-axis of the global coordinate system points to the true north direction; the x-axis of the global coordinate system points to the true north direction, and the z-axis is perpendicular to the ground or sea level.

In one embodiment, the method further includes notifying one or more of the following:

The coordinates of the first geographic location information in the local coordinate system; the angle of the first geographic location information in the local coordinate system; the distance between the first geographic location information and a reference geographic location.

In one embodiment, the number of the first geographic location information is Q*M, Q is Q time points or time periods, and M is the number of second PRS resources.

In one embodiment, the method includes one or more of the following:

The pth first geographic location information corresponds to the moment or period of i=ceil(p/M); the pth geographic location corresponds to the m=mod(p-1, M)+1 second of a moment or period PRS resources; the pth geographic location corresponds to the m=mod(p-1, M)+1 antenna panel, or corresponds to the m=mod(p-1, M)+1 antenna panel group.

mod means to take the remainder, and ceil means to round up. p is a positive integer not greater than Q*M.

M (groups) of antenna panels correspond to M pieces of first geographic location information, and are mapped to M pieces of second PRS resources.

M (sets of) antenna panels have Q*M pieces of first geographic location information in total at Q moments.

The p-th first geographic location information among the Q*M first geographic location information notified by the first communication node corresponds to the m-th (group) antenna panel among the M (group) antenna panels.

The p-th first geographic location information corresponds to the i-th moment in the Q moments.

In an example embodiment, the present application also provides an information transmission method. FIG. 3a is a schematic flowchart of an information transmission method provided in the embodiment of the present application. This method is applicable to the situation where the second communication node is positioned. The method can be executed by an information transmission device, which can be implemented by software and/or hardware, and is generally integrated on the second communication node.

As shown in Figure 3a, the information transmission method provided by this application includes:

S310. Send second geographic location information, where the second geographic location information is a location of a second antenna panel of the second communication node in a local coordinate system.

The second geographic location information may be information representing an absolute geographic location, or information representing a relative geographic location. It is not limited here.

The information transmission method provided by the present application is to send the second geographic location information, the second geographic location information is the position of the second antenna panel of the second communication node in the local coordinate system, so as to complete the positioning of the second communication node .

In one embodiment, the second geographic location information is coordinates in a local coordinate system.

In one embodiment, the second geographic location information includes one or more of the following:

The distance between the second geographic location information and a reference geographic location; the angle of the second geographic location information in a local coordinate system.

In one embodiment, the method further includes: sending a first PRS, where the first PRS is mapped to one or more first PRS resources, and the number of the second geographic location information is one or more, each There is a mapping relationship between the second geographic location information and one of the first PRS resources.

In one embodiment, the coordinate origin of the local coordinate system is the reference geographic location of the second communication node, and the reference geographic location is one of the following:

The geometric center position of the second communication node; the geographical location corresponding to a second antenna panel of the second communication node.

In one embodiment, the method further includes indicating one or more of the following feedback types:

Time difference between sending and receiving; angle of arrival; relative delay difference.

In an embodiment, the method further includes: instructing the first communication node to feed back supported capabilities, where the supported capabilities of the first communication node include one of the following capabilities:

Feedback capability of sending and receiving time difference; feedback capability of angle of arrival; feedback capability of relative delay difference.

The second communication node instructs the first communication node to feedback supported capabilities, that is, indicates which capabilities are supported by the first communication node, and these capabilities include the feedback capability of sending and receiving time difference, the feedback capability of angle of arrival, and the feedback capability of relative delay difference.

In an exemplary embodiment, an embodiment of the present application provides an information transmission method, and FIG. 3b is a schematic flowchart of an information transmission method provided in an embodiment of the present application, and the method may be applicable to positioning a second communication node In some cases, the method may be executed by an information transmission device, which may be implemented by software and/or hardware, and generally integrated on the second communication node.

As shown in Figure 3b, the information transmission method provided in the embodiment of the present application includes:

S410. Perform measurement on the second positioning reference signal PRS resource.

S420. Report the measurement result to a high level.

The measurement result includes one or more measurement information, each measurement information corresponds to a configuration object and a second PRS resource among the measured second PRS resources, and the configuration object is the An object of a geographic location or a location of a time-frequency resource used by the second communication node.

In the information transmission method provided by the embodiment of the present application, the positioning of the second communication node is completed by reporting the measurement result to the upper layer.

In one embodiment, the set object includes one or more of the following:

The second geographic location information; the second antenna panel of the second communication node; the first PRS resource, where the first PRS resource is the PRS resource for sending the first PRS by the second communication node.

Different PRS ports; PRS resources at different times.

In one embodiment, the one measurement information includes one or more of the following:

The delay difference between a second PRS resource and a second antenna panel relative to the third reference delay; the delay between a second PRS resource and a second geographic location information relative to the fourth reference delay Latency; time difference between two second PRS resources corresponding to the same second geographic location information; time difference between two second geographic location information corresponding to the same second PRS resource.

In one embodiment, the third reference delay is the measured delay of the first PRS resource in the second PRS resource and the first antenna panel in the second antenna panel, and the fourth reference delay is The measured time delay of the first PRS resource in the second PRS resource and the first geographic location in the second geographic location information.

The time difference between a second PRS resource and a first PRS resource; the difference between the time difference between a second PRS resource and a first PRS resource, and the measured difference between the first PRS resource and the first PRS resource in the second PRS resource The relative value of the time difference between sending and receiving of the first PRS resource.

In one embodiment, the second communication node receives one or more PRS signals from the first communication node on one or more second PRS resources; One or more PRS signals are sent on the resource.

A second PRS resource and a horizontal angle of arrival corresponding to the second geographic location information; a second PRS resource and a vertical angle of arrival corresponding to the second geographic location information.

In one embodiment, the measured second positioning reference signal PRS resources are resources indicated by physical layer signaling or high layer signaling.

For details of the embodiment corresponding to FIG. 3 b , reference may be made to the foregoing embodiments, and details are not repeated here.

The following is an exemplary description of the present application, no matter the anchor node or the target node, there may be multiple antenna panels in different geographic locations. In related localization techniques, the different geographic locations of the multiple antenna panels of the anchor node and the target node are not fully utilized. In related positioning technologies, measurement and feedback for multi-antenna panels are not supported. This application proposes a positioning technology that supports measurement and feedback of multi-antenna panels. Through the positioning technology of the present application, the positioning of the target node can be obtained under the condition of fewer anchor nodes, and even the absolute positioning of the target node can be obtained when there is only one anchor node. In addition, under the condition that the number of anchor nodes remains unchanged, the positioning technology of the present application can improve the positioning accuracy of the target node.

In this example, the target node and the anchor node both have multi-antenna panels as an example to illustrate the solution to antenna panel positioning. For the positioning of the three-dimensional space, the principle of positioning is similar to that of the two-dimensional planar space. Next, the positioning in the two-dimensional plane space is taken as an example for description.

It is assumed that the multiple sky panels of the anchor node have different geographical locations.

In addition, it is assumed that the target node is a vehicle, and multiple antenna panels of the target node are assumed to have different geographic locations. It is assumed that a certain position point of the target node is used as a reference position, and the reference position is used to represent the geographic location of the target node, for example, the reference position is the geometric center position of the target node. The target node does not know the coordinate position of the reference position point, but knows the distance between the reference position point and each antenna panel of the target node. The goal is to obtain the geographic location of the reference position of the target node, eg represented by coordinates (x, y). (x, y) are coordinates in the global coordinate system, for example, it is stipulated that the direction of the x-axis of the global coordinate system is the true north direction.

Figure 4a is a schematic diagram of the scene of the anchor node and the target node provided by the exemplary embodiment of the present application. As shown in Figure 4a, the geographic location of the antenna panel of the anchor node is known, and the geographic location of the antenna panel 1 is marked as

The geographic location of Antenna Panel 2 is marked as

are coordinates in the global coordinate system.

The geographical coordinate positions of antenna panel 1, antenna panel 2, antenna panel 3 and antenna panel 4 of the target node are (x ₁ , y ₁ ), (x ₂ , y ₂ ), (x ₃ , y ₃ ), (x ₄ ,y ₄ ), the coordinates of the reference position of the target node are (x,y). Among them, (x ₁ ,y ₁ ), (x ₂ ,y ₂ ), (x ₃ ,y ₃ ), (x ₄ ,y ₄ ), (x,y) are coordinates in the global coordinate system, and these coordinates is unknown.

Fig. 4b is a schematic diagram of a coordinate system of a target node provided by an embodiment of the present application. As shown in Figure 4b, the target node can assume a local coordinate system, and the origin of the local coordinate system is the reference geographic location of the target node. The x-axis direction of the local coordinate system can be assumed arbitrarily by the target node. Assume that the target node's local coordinate system has an x-axis labeled x' and a y-axis labeled y'. In Fig. 4b, the x-axis is marked as x and the y-axis is marked as y, which is the global coordinate system. Angle between local and global coordinate systems

is unknown,

is the angle between the x' axis of the local coordinate system and the x axis of the global coordinate system in Figure 4b. In the local coordinate system assumed by the target node, the coordinates of each antenna panel in the local coordinate system are known, and the coordinates of antenna panel 1, antenna panel 2, antenna panel 3 and antenna panel 4 of the target node in the local coordinate system They are (x′ ₁ , y′ ₁ ), (x′ ₂ , y′ ₂ ), (x′ ₃ , y′ ₃ ), (x′ ₄ , y′ ₄ ), respectively. The coordinates of the reference position in the local coordinate system are (0,0). In addition, the distance between each antenna panel and the reference geographic location is known, and the distance between the antenna panel 1, antenna panel 2, antenna panel 3, and antenna panel 4 of the target node and the reference geographic location of the target node is L ₁ , L ₂ , L ₃ , L ₄ .

1. Positioning based on the receiving-transmitting time difference (i.e. the receiving-transmitting time difference) (obtain τ _i,j through the receiving-transmitting time difference):

τ _i,j represents the air propagation delay of signal transmission between the i-th antenna panel of the target node and the j-th antenna panel of the anchor node. Thus, there is the following equation:

Among them, C represents the propagation speed of light, and the value is 3*10 ⁸ m/s. The above equation can be converted into the following equation:

Among them, Δτ _i,j is the relative delay between the i-th antenna panel of the target node and the j-th antenna panel of the anchor node. Δτ _i,j represents the propagation delay τ _i,j between the i-th antenna panel of the target node and the j-th antenna panel of the anchor node, relative to the delay between the reference antenna panel pair, the delay difference between the two. Assume that the reference antenna panel pair is (the first antenna panel of the target node, the jth antenna panel of the anchor node). Thus, Δτ _i,j =τ _i,j −τ _1,1 .

For any antenna panel i of the target node, its coordinates in the global coordinate system can be expressed as follows:

For any i, j, if τ _i,j is known, the reference position coordinates (x, y) of the target node can be solved through the above formula 1 and formula 3, that is, the location of the target node is obtained. The acquisition of τ _i,j can be obtained by measuring the receiving-sending time difference of the anchor node and the target node respectively.

The method of obtaining τ _i,j by measuring the receiving-sending time difference between the anchor node and the target node respectively.

Fig. 4c is a schematic diagram of interaction between a target node and an anchor node according to an embodiment of the present application. As shown in Fig. 4c, the antenna panel i on the target node side sends a PRS, and the antenna panel j on the anchor node side feeds back a PRS. For antenna panel i and antenna panel j, the PRS receive-transmit time difference measured by the anchor node is T _i,j , and the PRS receive-transmit time difference measured by the target node is T′ _i,j . Thus, τ _i,j =(T′ _i,j −T _i,j )/2.

2. Positioning based on the relative delay difference Δτ _i,j :

Similarly, for any i, j, if Δτ _i,j is known, the reference position coordinates (x, y) of the target node can be solved through the above formula 2 and formula 3, that is, the location of the target node is obtained.

Positioning based on the Angle of Arrival (AOA) is as follows:

By measuring the angle of arrival of the PRS signal for the antenna panel i of the target node and the antenna panel j of the anchor node, the positioning of the target node can also be calculated. How to formulate equations for this situation will not be stated here.

Based on the above description, AOA, the relative time difference Δτ _i,j , and the receiving-transmitting time difference are called the first feedback information. That is, the first feedback information includes AOA, relative time difference Δτ _i,j , and receiving-transmitting time difference. The first feedback information can be regarded as information to be fed back.

If the first feedback information of each antenna panel pair is known, the geographic location of each antenna panel of one or more anchor nodes, and the corresponding relationship between the two are known, the geographic location of the target node can be calculated. Both obtain the absolute positioning of the target node.

Similarly, no matter whether the geographic location of each antenna panel of the anchor node is known or not, if the first feedback information of each pair of antenna panels is known, the relative geographic location of the target node relative to the anchor node can be calculated. For the introduction of the relative positioning of the target node, please refer to Embodiment 4, which will not be introduced here.

The solution to the positioning of multi-antenna panels is described above. To achieve the multi-antenna panel positioning described above, measurements and feedback are required. Therefore, it can be divided into several positioning methods as follows.

Method 1: The target node sends PRS, and the anchor node feeds back PRS to realize multi-antenna panel positioning

The method is shown in Figure 4c. In this method, different antenna panels, ie, pannels, in multiple geographical locations of the target node transmit multiple PRS signals, ie, the first PRS signal or the first PRS, through different first PRS resources. That is, each pannel on the target user equipment (User Equipment, UE) side corresponds to one PRS resource. Wherein, the target UE is a target node.

The anchor node is mapped to different second PRS resources through different pannels in multiple geographic locations, and sends multiple PRS signals, that is, second PRS signals or second PRSs, through the multiple second PRS resources. That is, each pannel on the anchor UE side is mapped to a PRS resource.

In this method, after the target node sends the RPS through the first PRS resource, the anchor node feeds back the PRS to the target node through the second PRS resource.

N antenna panels of the target node (or N groups, each group including 1 or more geographically close antenna panels) are mapped to N first PRS resources, and the target node sends N The sending times of the PRS signals are respectively t ₁ , t ₂ ,..., t _N . Any two moments in t ₁ , t ₂ ,...,t _N may be the same moment or different moments. The antenna panel corresponding to the ith first PRS resource of the target node is marked as antenna panel i. Wherein, geographically close can be regarded as having similar positions, and when the distance between the two antenna panels is smaller than a threshold value, it can be considered that the geographical locations of the two antenna panels are similar.

M (or M groups, each group including 1 or more geographically close antenna panels) antenna panels of the anchor node are mapped to M second PRS resources, and the anchor node transmits on the M second PRS resources M PRS signals, the sending times are respectively

Any two moments in , can be the same moment or different moments. The antenna panel corresponding to the jth second PRS resource of the anchor node is marked as antenna panel j.

For the PRS signal sent by the target node on the i-th first PRS resource, the antenna panel j of the anchor node receives the PRS signal at t _i,j .

For the PRS signal sent by the anchor node on the jth second PRS resource, the antenna panel i of the target node receives the PRS signal at the time of

As shown in Fig. 4c, T _i,j is the receiving-transmitting time difference measured by the anchor node for (i-th first PRS resource, j-th second PRS resource). T' _{i, j} is the receiving-transmitting time difference measured by the target node for (i-th first PRS resource, j-th second PRS resource). Therefore, the signal transmission time delay τ _i,j =(T′ _i,j −T _i,j )/2 between (i-th first PRS resource, j-th second PRS resource) can be calculated. Thus, the location of the target node can be obtained.

The anchor node measures the receiving-transmitting of each (first PRS resource, second PRS resource) pair, that is, the RX-TX time difference, and then feeds back to the target node. Here, the receiving-transmitting time difference fed back by the anchor node for each pair (first PRS resource, second PRS resource) is called first feedback information.

The manner in which the anchor node feeds back the first feedback information of multiple pairs (the first PRS resource, the second PRS resource) to the target node is as follows, and the following information is fed back:

Geographic location 1 (the geographic location corresponding to the first second PRS resource): (the first first feedback information, the second first feedback information); geographic location 2 (the geographic location corresponding to the second second PRS resource ): (1st first feedback information, 2nd first feedback information); geographic location j (geographical location corresponding to the jth second PRS resource): (1st first feedback information, 2nd - Feedback information).

The quantity of first feedback information corresponding to each geographic location information is only an example, and the i-th first feedback information corresponds to the i-th first PRS resource, and the j-th geographic location.

The mapping relationship between the first feedback information and a pair (first PRS resource, second PRS resource) is defined as:

The j-th first feedback information in the i-th geographic location is the first feedback information of the (i-th first PRS resource, j-th second PRS resource) pair.

The first feedback information that the anchor node feeds back to the target node is: (i-th first PRS resource, j-th second PRS resource) pair corresponding receiving-transmitting time difference T _i,j .

In addition, the target node has obtained the receiving-transmitting time difference T′ _i,j corresponding to the (i-th first PRS resource, j-th second PRS resource) pair through measurement.

Therefore, the time delay corresponding to (i-th first PRS resource, j-th second PRS resource) calculated by the target terminal is τ _i,j =(T′ _i,j −T _i,j )/2.

Through the previous formula 1 and formula 3, the target node can solve the (x, y) in the equation and obtain the positioning in the two-dimensional plane space. Formula 1 and Formula 3 can also be extended to three-dimensional space, so as to obtain the positioning of the target node in three-dimensional space.

In this application, the location of the target node can also be calculated by the location server. At this time, the information that needs to be fed back to the positioning server is introduced as follows.

The anchor node feeds back multiple first geographic locations and multiple (first PRS resource, second PRS resource) pair receiving-transmitting time differences to the positioning server. For the feedback manner, refer to the manner in which the anchor node feeds back multiple pairs (first PRS resource, second PRS) of first feedback information to the target node. In addition, the target node feeds back the receiving-transmitting time difference of multiple (first PRS resource, second PRS resource) pairs to the positioning server. In addition, the target node also feeds back coordinate information in the local coordinate system to the positioning server, for example, feeds back coordinates in the local coordinate system of multiple second geographic locations corresponding to the first PRS resource. Alternatively, feed back the multiple second geographic locations corresponding to the first PRS resource, the angle in the local coordinate system, and the distance between the multiple second geographic locations corresponding to the first PRS resource and the reference geographic location of the target node.

The anchor node feeds back the receiving-transmitting time difference of multiple (first PRS resource, second PRS resource) pairs to the target node. The target node feeds back to the positioning server a plurality of (first PRS resources, second PRS resources) pairs of receiving and sending time differences measured by the target node, and the target node feeds back to the positioning server multiple (first PRS resources, second PRS resources) measured by the target node. Two PRS resources) pair receiving-transmitting time difference. In addition, the target node also feeds back coordinate information in the local coordinate system to the positioning server, for example, feeds back coordinates in the local coordinate system of multiple second geographic locations corresponding to the first PRS resource. Alternatively, multiple second geographic locations corresponding to the first PRS resource are fed back, angles in the local coordinate system, and distances between the multiple geographic locations corresponding to the first PRS resource and the reference geographic location of the target node.

Based on the above information fed back by the target node and the anchor node, the positioning server calculates the geographic location of the target node.

This example uses the target node to send PRS and the anchor point to feed back PRS as an example, and introduces the positioning of multi-antenna panels based on the measurement of the receiving-transmitting time difference. In addition, the anchor node can also send the PRS, and the target node can feed back the PRS, and multi-antenna positioning based on the measurement of the receiving-transmitting time difference. For the introduction of this situation, please refer to Embodiment 4.

Method 2: Send PRS through the anchor node to realize multi-antenna panel positioning:

The M antenna panels of the anchor node are mapped to M second PRS resources, where each antenna panel has a different geographic location. Alternatively, the M groups of antenna panels of the anchor node are mapped to M second PRS resources, where each group of antenna panels consists of multiple antenna panels with the same or similar geographic locations.

M (or M groups) of antenna panels of the anchor node are mapped to M second PRS resources. The M (or M groups) of antenna panels of the anchor node respectively transmit the PRS signal through the M second PRS resources.

The target node respectively measures the PRS signals on the M second PRS resources through N (or N groups) of antenna panels. The measured quantity may be AOA, relative delay difference, and the like. Here, the measurement quantity is taken as an example of a relative time delay difference for description.

On the target node side, N (or N groups) of antenna panels for measurement have different geographic locations. For the antenna panel (or antenna panel group) corresponding to the jth geographic location, it is marked as antenna panel j (or antenna panel group j). The measurement result of the i-th second PRS resource by the antenna panel j (or antenna panel group j) is Δτ _i,j . The geographic location of the antenna panel (or antenna panel group) on the target node side is called the second geographic location.

The above Δτ _i,j is the relative delay of (the i-th second PRS resource, the j-th second geographical location), and Δτ _i,j is the difference or the absolute value of the difference between the following two delays:

(the i second PRS resource, the j second geographic location) corresponding transmission delay; refer to the delay corresponding to (the second PRS resource, the second geographic location); for example, refer to the (second PRS resource, the second geographic location) 2 geographic locations) pair as (1st 2nd PRS resource, 1st 2nd geographic location).

The anchor UE notifies multiple geographic locations, and the notification method is as follows: the first first geographic location, and the second first geographic location.

The mapping relationship between the first geographic location and the second PRS resource is defined as: the i-th first geographic location in the geographic location list corresponds to the i-th second PRS resource of the anchor node.

According to the mapping relationship between the first geographic location and the second PRS resource notified by the above-mentioned anchor node, the target node can know the geographic location (xi _, y _i , z _i ) corresponding to the i-th second PRS, and the target node The jth second geographic location of . And, the target node obtains the time difference Δτ _i,j corresponding to (i-th second PRS, j-th second geographic location) through measurement. Δτ _i,j is defined as above. Assume that the reference position of the target node is (x, y, z), and (x, y, z) are coordinates in the global coordinate system.

Therefore, after extending Formula 2 and Formula 3 to three-dimensional space, x, y, and z in the equation can be solved to obtain the location of the target node.

The location of the target node is calculated by the target node as described above.

In addition, the target terminal can calculate the positioning of the target node by the positioning server through feedback to the positioning server.

In one embodiment, the target node feeds back multiple first geographic locations notified by the anchor node to the positioning server, and feeds back multiple (second PRS resources, second geographic location) corresponding time differences measured by the target node to the positioning server , where the time difference corresponding to (i-th second PRS, j-th second geographic location) is Δτ _i,j . The second geographic location is a geographic location in the global coordinate system. The x-axis direction of the global coordinate system is the true north direction, and the z-axis direction is perpendicular to the ground.

In addition, the target terminal, that is, the target node assumes a local coordinate system, called the first local coordinate system. The coordinate origin of the first local coordinate system assumed by the target terminal is the reference geographic location. The target node notifies the multiple second geographic locations, the distances relative to the reference position of the target node. And, the target node notifies the angle information of the plurality of second geographic locations in the first local coordinate system, such as azimuth and elevation. The angle between the first local coordinate system and the global coordinate system is an unknown quantity. Based on these information, the location server calculates the location of the target node.

This example introduces the implementation of time difference-based or AOA-based multi-antenna panel positioning by sending PRS through the anchor node.

In addition, the PRS can also be sent by the target node to realize multi-antenna panel positioning based on time difference or AOA, see Embodiment 2.

This application proposes a positioning technology that supports measurement and feedback for multi-antenna panels. Through the positioning technology of this application, the positioning of the target node can be obtained under the condition of fewer anchor nodes, and even the absolute positioning of the target node can be obtained when there is only one anchor node. In addition, under the condition that the number of anchor nodes remains unchanged, the positioning technology of the present application can improve the positioning accuracy of the target node. For an example of the positioning technology of the present application, refer to the following embodiments.

Embodiment 1 (anchor node sends PRS to realize multi-panel positioning) corresponding method 2

In this embodiment, the first terminal is an anchor node, and the first terminal sends a PRS; the PRS sent by the first terminal is mapped to one or more PRS resources; for example, PRS 1 is mapped to PRS resource 1, and PRS 2 is mapped to PRS Resource 2, . . . , PRS resource M is mapped to PRS resource M.

The first terminal sends the geographic location of one or more pannels.

For example, notify(panel geolocation 1, pannel geolocation 2, ..., pannel geolocation M).

There is a fixed mapping relationship between the geographic location of the pannel and the PRS resource. For example, there is a mapping relationship between the PRS resource i and the i-th geographic location notified by the first terminal.

In this embodiment, the second terminal is the target node, and the second terminal has N pannels, and the second terminal performs the following operations:

The second terminal receives the geographic locations of one or more pannels sent by the first terminal.

For the N receiving antenna panels, that is, the geographic locations of the N receiving Rx pannels, the second terminal respectively performs target measurement X measurement on the PRS signals on multiple PRS resources. For the j th pannel of the second terminal, by measuring the PRS signal on the i th PRS resource, the measurement quantity X(i,j) of the j th pannel for the i th PRS resource is obtained.

The second terminal assumes that there is a fixed mapping relationship between the geographic location of the pannel notified by the first terminal and the PRS resource used by the first terminal to send the PRS. For example, the second terminal assumes that there is a mapping relationship between the PRS resource i and the i-th geographic location notified by the first terminal. Based on the mapping relationship, the second terminal obtains the measurement amount between the jth pannel of the second terminal and the geographic location notified by the first terminal.

For example, j pannels have a mapping relationship with the i-th geographic location of the first terminal for the measurement X(i,j) of the i-th PRS resource by j pannels. The measurement of position is Y(i,j)=X(i,j).

The above Y and X represent the same physical meaning, for example, X and Y represent relative time delays.

When X, Y represent the relative delay, Y(i,j) represents the signal transmission delay of the j-th pannel for the i-th geographic location, the difference of the delay relative to the reference (pannel, geographic location) pair (or absolute value of the difference).

X(i, j) represents the relative delay measured by the j-th pannel for the i-th PRS resource. In the above example, the relative delay Y(i,j) of the j-th pannel of the target node for the i-th Pannel of the anchor node, through the j-th pannel of the target node for the i-th PRS resource of the anchor node It is obtained by performing measurement on relative time delay (measurement result X(i,j), that is, Y(i,j)=X(i,j)).

In this embodiment, FIG. 4d is a schematic diagram of a first terminal mapping relationship provided in the embodiment of the present application. Fig. 4e is a schematic diagram of a first terminal mapping relationship and second terminal measurement provided by the embodiment of the present application. In Fig. 4d, the first terminal is UE1. The first terminal is an anchor terminal, that is, an anchor node, and the geographic locations (x1, y1, z1) and (x2, y2, z2) of the antenna panel 1 and the antenna panel 2 of the first terminal are known. The second terminal is a target UE, that is, a UE that needs to obtain its own geographic location. In FIG. 4e , the second terminal is UE2. The geographic locations (x3, y3, z3) and (x4, y4, z4) of the second terminal's pannel 0 and pannel 1 are unknown.

With reference to the example in Figure 4d, the first terminal performs the following operations:

The first terminal sends the geographic locations of one or more pannels; the geographic locations of M pannels of the first terminal {geographic location 1, geographic location 2}={(x1, y1, z1), (x2, y2, z2)}.

The PRS sent by the first terminal is mapped to one or more PRS resources; for example, PRS 1 is mapped to PRS resource 1, PRS 2 is mapped to PRS resource 2, ..., PRS M is mapped to PRS resource M. For PRS on M PRS resources, it is shown in Figure 4d.

There is a fixed mapping relationship between the geographic location of the pannel and the PRS resource. There is a mapping relationship between the PRS resource i and the i-th geographic location notified by the first terminal. Therefore, the pannel corresponding to the i-th geographic location sends PRS on resource i, which is denoted as PRS i.

With reference to the example in Figure 4e, the second terminal performs the following operations:

The second terminal receives the geographic locations of multiple pannels sent by the first terminal {geographic location 1, geographic location 2}={(x1, y1, z1), (x2, y2, z2)}.

For the geographic locations of the N receiving pannels, the second terminal respectively performs target measurement X measurement on PRS signals on multiple PRS resources. For the j-th pannel of the second terminal, by measuring the PRS signal on the i-th PRS resource, the measurement quantity X(i, j) of the j-th pannel for the i-th PRS resource is obtained, as shown in FIG. 4e.

The second terminal assumes that there is a fixed mapping relationship between the geographic location of the pannel notified by the first terminal and the PRS resource used by the first terminal to send the PRS. For example, the second terminal assumes that there is a mapping relationship between the PRS resource i and the i-th geographic location notified by the first terminal. Based on the mapping relationship, the second terminal deduces Y(i, j) from X(i, j). FIG. 4f is another schematic diagram of information transmission provided by the embodiment of the present application. This figure shows the mapping relationship of the first terminal, and The schematic diagram of the second terminal measurement is shown in Fig. 4f.

In Figure 4e and Figure 4f, RSTD represents a reference signal time difference (Reference Signal Time Difference), and the reference signal refers to the PRS sent by the first terminal. RSTD(i, j) represents the signal transmission delay corresponding to (the jth pannel of the second terminal, the ith PRS resource of the first terminal), and (the jth pannel of the second terminal, the ith PRS resource of the first terminal) i PRS resources) corresponding to the difference in signal transmission delay.

In FIG. 4f, RSTD' represents a reference signal time difference (Reference Signal Time Difference), and the reference signal refers to the PRS sent by the first terminal. RSTD'(i, j) represents the signal transmission delay corresponding to (the jth pannel of the second terminal, the ith pannel of the first terminal), and (the jth pannel of the second terminal, the first terminal's i pannel) corresponding to the difference in signal transmission delay.

The second terminal may calculate the location of the second terminal based on the above measurement, the information notified by the first terminal, and the coordinates of each antenna panel of the second terminal in the local coordinate system. Wherein, the origin of the local coordinate system is the reference point of the second terminal, and the direction of the coordinate axis of the local coordinate system can be assumed by the second terminal itself.

Embodiment 2: The target node sends PRS to realize multi-antenna panel positioning:

N antenna panels of the target node are mapped to N first PRS resources, where each antenna panel has a different geographic location. Alternatively, N groups of antenna panels of the target node are mapped to N first PRS resources, where each group of antenna panels consists of multiple antenna panels with the same or similar geographic locations.

N (or N groups) of antenna panels of the target node are mapped to N first PRS resources. The N (or N groups) of antenna panels of the target node respectively transmit the PRS signal through the N first PRS resources.

The anchor node respectively measures the PRS signals on the N first PRS resources through M (or M groups) of antenna panels. The measured quantity may be AOA, relative delay difference, and the like. Here, the measurement quantity is taken as an example of a relative time delay difference for description.

On the anchor node side, M (or M groups) of antenna panels for measurement have different geographic locations. For the antenna panel (or antenna panel group) corresponding to the jth geographic location, it is marked as antenna panel j (or antenna panel group j). The measurement result of the i-th first PRS resource by the antenna panel j (or antenna panel group j) is Δτ _i,j .

The geographic location of the antenna panel (or antenna panel group) on the side of the anchor node is referred to as the first geographic location herein.

The above Δτ _i,j is the relative delay of (the i-th first PRS resource, the j-th first geographic location), and Δτ _i,j is the difference (or absolute value of the difference) between the following two delays: The transmission delay corresponding to (the i-th first PRS resource, the j-th first geographic location); refer to the transmission delay corresponding to the (first PRS resource, first geographic location).

For example, the reference (first PRS resource, first geographic location) pair is (1st first PRS resource, first first geographic location).

The anchor node feeds back the receiving-transmitting time difference of each (first PRS resource, first geographic location) pair to the target terminal, and feeds back the geographic location information of each first geographic location of the anchor node to the target terminal, and each first geographic location One or a group of antenna panels corresponding to the anchor node.

The way the anchor node feeds back information is as follows:

Geographical location 1: (1st first feedback information, 2nd first feedback information); geographic location 2 (the geographic location corresponding to the 2nd second PRS resource): (1st first feedback information, 2nd first feedback information); geographic location j (the geographic location corresponding to the jth second PRS resource): (the first first feedback information, the second first feedback information).

The above geographic location is the first geographic location.

The mapping relationship between the first feedback information (such as receiving and sending time difference) and a pair (the first PRS resource, the first geographic location) is defined as: the jth first feedback information in the i-th geographic location corresponds to The first feedback information of (i-th first PRS, j-th first geographic location). The first feedback information is the relative time difference, and the first feedback information (i-th first PRS, j-th geographic location) fed back by the anchor node is the above Δτ _i,j . Assume that the reference position of the target node is (x, y, z), and (x, y, z) are coordinates in the global coordinate system.

Therefore, after extending formula 2 and formula 3 to three-dimensional space, (x, y, z) in the equation can be solved to obtain the location of the target node.

The target terminal can calculate the positioning of the target node by the positioning server through feedback to the positioning server.

The target UE attaches (Long Term Evolution, First Geographical Location) pairs of relative delay differences fed back by the anchor node and multiple first geographic locations notified by the anchor node to the Long Term Evolution positioning protocol. Term Evolution Positioning Protocol annex, LPPa) protocol feedback to the positioning server.

In addition, the target node also feeds back coordinate information in the local coordinate system to the positioning server, for example, feeds back coordinates in the local coordinate system of multiple second geographic locations corresponding to the first PRS resource. Or, feed back the multiple second geographic locations corresponding to the first PRS resource, the angle in the local coordinate system (including azimuth and elevation angle), the distance between the multiple second geographic locations corresponding to the first PRS resource and the reference geographic location of the target terminal the distance between.

Based on the above information, the positioning server can obtain the positioning of the target terminal.

Embodiment 3: The target node sends PRS, and the anchor node feeds back PRS to realize multi-antenna panel positioning:

For the content of this embodiment, refer to the above method 1.

Embodiment 4: The anchor node sends PRS, and the target node feeds back PRS to realize multi-antenna panel positioning:

In the example in Fig. 4a, the location of the antenna panel of the anchor node is known, and the geographic location of antenna panel 1 is marked as

The geographic location of Antenna Panel 2 is marked as

coordinates in the global coordinate system.

As shown in Figure 4b, the target node can assume a local coordinate system, and the origin of the local coordinate system is the reference position of the target node. The x-axis direction of the local coordinate system can be assumed arbitrarily by the target node. Assume that the target node's local coordinate system has an x-axis labeled x' and a y-axis labeled y'. In Fig. 4b, the x-axis is marked as x and the y-axis is marked as y, which is the global coordinate system. Angle between local and global coordinate systems

is unknown,

is the angle between the x' axis of the local coordinate system and the x axis of the global coordinate system in Figure 4b. In the local coordinate system assumed by the target node, the coordinates of each antenna panel in the local coordinate system are known, and the coordinates of antenna panel 1, antenna panel 2, antenna panel 3 and antenna panel 4 of the target node in the local coordinate system They are (x′ ₁ , y′ ₁ ), (x′ ₂ , y′ ₂ ), (x′ ₃ , y′ ₃ ), (x′ ₄ , y′ ₄ ), respectively. The coordinates of the reference position in the local coordinate system are (0,0). In addition, the distance between each panel and the reference position is known, and the distances between antenna panel 1, antenna panel 2, antenna panel 3, and antenna panel 4 of the target node and the reference geographic location of the target node are L ₁ , L ₂ , L ₃ , L ₄ .

The anchor node maps to different second PRS resources through multiple pannels with different geographic locations, and sends multiple PRS signals through the multiple second PRS resources. That is, each pannel on the anchor UE side is mapped to a PRS resource.

Different pannels in multiple geographic locations of the target node send multiple PRS signals through different first PRS resources. That is, each pannel on the target UE side corresponds to one PRS resource.

In this method, after the anchor node sends the RPS through the second PRS resource, the target node feeds back the PRS to the anchor node through the first PRS resource.

N antenna panels of the target node (or N groups, each group including 1 or more geographically close antenna panels) are mapped to N first PRS resources, and the target node sends N The sending times of the PRS signals are respectively t ₁ , t ₂ ,..., t _N . Any two moments in t ₁ , t ₂ ,...,t _N may be the same moment or different moments. The antenna panel corresponding to the ith first PRS resource of the target node is marked as antenna panel i.

Figure 4g is a _schematic diagram of the interaction between an anchor node and a target node provided by the embodiment of the present application. PRS resource) measured receive-transmit time difference. T _i,j is the receiving-transmitting time difference measured by the target node for (i-th first PRS resource, j-th second PRS resource). Therefore, the signal transmission time delay τ _i,j =(T′ _i,j −T _i,j )/2 between (i-th first PRS resource, j-th second PRS resource) can be calculated. Thus, the location of the target node can be obtained.

After the anchor node measures the receiving-transmitting time difference of each (first PRS resource, second PRS resource) pair, it feeds back to the target node. Here, the receiving-transmitting time difference fed back by the anchor node for each pair (the first PRS resource, the second PRS) is referred to as first feedback information.

The manner in which the anchor node feeds back the first feedback information of multiple pairs (the first PRS resource, the second PRS) to the target node is as follows, and the following information is fed back:

The above geographic location is the first geographic location. The above-mentioned first feedback information is information to be fed back.

The mapping relationship between the first feedback information and a pair (the first PRS, the second PRS resource) is defined as:

The j-th first feedback information in the i-th geographical location is the first feedback information of the (i-th first PRS resource, j-th second PRS resource) pair.

The first feedback information that the anchor node feeds back to the target node is: (i-th first PRS resource, j-th second PRS resource) pair corresponding receiving-transmitting time difference T′ _i,j .

In addition, based on the above description, the target node has obtained the receiving-transmitting time difference T _i,j corresponding to the (i-th first PRS resource, j-th second PRS resource) pair through measurement.

Therefore, the target terminal calculates (i-th first PRS resource, j-th second PRS resource) corresponding time delay as τ _i,j =(T′ _i,j −T _i,j )/2.

Through the previous formula 1 and formula 3, the target node can solve the (x, y) in the equation and obtain the positioning in the two-dimensional plane space. Of course, Formula 1 and Formula 3 can also be extended to the three-dimensional space, so as to obtain the positioning of the target node in the three-dimensional space.

The target node feeds back multiple first geographic locations and multiple (first PRS, second PRS resource) pair receiving-transmitting time differences to the positioning server. Feedback methods can refer to the above form.

In addition, the target node also feeds back coordinate information in the local coordinate system to the positioning server, for example, feeds back coordinates in the local coordinate system of multiple second geographic locations corresponding to the first PRS resource. Alternatively, multiple second geographic locations corresponding to the first PRS resource, angles in the local coordinate system, and distances between these second geographic locations and the reference geographic location of the target node are fed back.

For the positioning server, the positioning of the target node is calculated based on the above information.

Embodiment 5: relative positioning (anchor node sends PRS)

In this embodiment, the first node is an anchor node, and the second node is a target node.

The M antenna panels of the anchor node are mapped to M second PRS resources, where each antenna panel has a different geographic location. Alternatively, the M groups of antenna panels of the anchor node are mapped to M second PRS resources, where each group of antenna panels consists of multiple antenna panels with the same or similar geographic locations. For the convenience of description, in the following, only M antenna panels of the anchor node are mapped to M second PRS resources to illustrate the principle.

M antenna panels of the anchor node are mapped to M second PRS resources. The M antenna panels of the anchor node respectively transmit the PRS signal through the M second PRS resources.

The target node respectively measures the PRS signals on the M second PRS resources through N (or N groups) of antenna panels. The measured quantity may be AOA, relative delay difference, and the like. Here, the measurement quantity is a relative time delay difference as an example for description.

On the target node side, N (or N groups) of antenna panels for measurement have different geographic locations. For the antenna panel (or antenna panel group) corresponding to the i-th geographic location, the measurement result of the j-th second PRS resource is Δτ _i,j .

The geographic location of the antenna panel (or antenna panel group) on the target node side is referred to as the second geographic location herein.

The above Δτ _i,j is the relative delay of (the j-th second PRS resource, the i-th second geographical location), and Δτ _i,j is the difference (or the absolute value of the difference) of the following two delays: The transmission delay corresponding to (the jth second PRS resource, the i second geographic location); refer to the corresponding delay of (the second PRS resource, the second geographic location);

For example, the reference (second PRS resource, second geographic location) pair is (1st second PRS resource, first 2nd geographic location).

The anchor node indicates that the coordinate type is a local coordinate system through Sidelink Control Information (SCI).

The anchor node notifies multiple first geographic locations in the local coordinate system, and the notification method is as follows: the first first geographic location, and the second first geographic location.

The coordinate origin of the above local coordinate system is the reference geographic location, and this local coordinate system is marked as the second local coordinate system.

The mapping relationship between the first geographic location and the PRS resource is defined as: the jth first geographic location in the geographic location list corresponds to the jth second PRS resource of the anchor node.

The mapping relationship between the first geographic location (corresponding to one or a group of antenna panels) and the second PRS resource is: the jth first geographic location in the notification corresponds to the jth second PRS resource. Therefore, the target node may know the first geographic location corresponding to the jth second PRS resource. In addition, in the foregoing statement, the target node has already measured and obtained the relative time delay Δτ _i,j corresponding to (j-th second PRS, i-th second geographic location).

In addition, the target terminal assumes a local coordinate system, called the first local coordinate system. The coordinate origin of the first local coordinate system assumed by the target terminal is the reference geographic location.

Take the positioning in two-dimensional space as an example to illustrate.

The anchor node assumes a second local coordinate system, and the coordinates of the notified M geographic locations in the second local coordinate system.

The target node may assume that the x-axis direction of the first local coordinate system is any direction, for example, the x-axis direction is the moving direction of the target node. And, the target node knows the distance between the geographic location corresponding to each antenna panel (or each group of antenna panels) and the reference geographic location. The distances between the second geographic location corresponding to the 1st, 2nd, ..., N antenna panels (or groups) and the reference geographic location are respectively marked as L1, L2, ..., LN. In the first local coordinate system, the geographic location of the 1st, 2nd,..., Nth (or group) antenna panels, the corresponding azimuth angle is

For the target node, L1, L2, ..., LN are known,

is also known.

In addition, the angle of the x-axis of the first local coordinate system relative to the x-axis of the second local coordinate system is an unknown quantity.

Based on the above information, the target node can obtain multiple equations, so that the location of the target node can be obtained.

The above describes the situation where the target node calculates its own positioning. In addition, the location of the target node may also be calculated by the location server. At this time, the required feedback information is introduced as follows.

The target node feeds back M geographic locations (marked as first geographic locations) to the positioning server, wherein the jth first geographic location corresponds to the jth first PRS resource. The target node feeds back the coordinates of the multiple antenna panels (or antenna panel groups) of the target node in the first local coordinate system to the positioning server. And, the target node feeds back relative time delay differences corresponding to multiple (second PRS resource, second geographic location) measured on the target node side to the positioning server. Here, each second geographic location corresponds to one or a group of antenna panels. For example, the jth second geographic location corresponds to the jth (or jth group) antenna panel of the target node.

The positioning server calculates the positioning of the target node based on the above information.

Embodiment 6: Multi-time antenna panel positioning (anchor point UE, single antenna panel)

The anchor node is moving, at t ₁ , t ₂ ,…,t _M time/period, the geographical location of one (or a set of) antenna panels of the anchor node at t ₁ ,t ₂ ,…,t _M time/period The locations are

At time t _j , if a group of antenna panels is mapped to a second PRS resource, the group of antenna panels consists of multiple antenna panels with the same or similar geographic locations. One (or a group of) antenna panels of the anchor node are mapped to M second PRS resources respectively at time t ₁ , t ₂ ,...,t _M , the first marked second PRS resource, the second second PRS resource PRS resource, . . . , the Mth second PRS resource. At t ₁ , t ₂ ,..., t _M time/period, the anchor node sends the PRS through these second PRS resources. For different second PRS resources, the PRS resource numbers may be the same or different. For different second PRS resources, the corresponding PRS port numbers may be the same or different.

As can be seen from the above description, a geographic location

It is bound to a moment/period t _j of a group of antenna panels (or an antenna panel).

Assuming that the target node is stationary, the target node measures PRS signals on M second PRS resources at time t ₁ , t ₂ , . . . , t _M respectively through N (or N groups) of antenna panels. The measured quantity may be AOA, relative delay difference, and the like. Here, the measurement quantity is a relative time delay difference as an example for description.

On the target node side, N (or N groups) of antenna panels for measurement have different geographic locations. For the antenna panel (or antenna panel group) corresponding to the i-th geographic location, it is marked as antenna panel i (or antenna panel group i), and the antenna panel i (or antenna panel group i) is opposite to the jth second PRS resource (corresponding to The measured relative time difference of instant/period t _j ), denoted Δτ _j,i . The geographic location of the antenna panel (or antenna panel group) on the target node side is referred to as the second geographic location herein.

The above Δτ _j,i is expressed as the PRS signal transmission delay corresponding to (the jth second PRS resource, the ith second geographic location), and the reference (second PRS resource, second geographic location) corresponding delay, two time delay difference. For example, the reference (the second PRS resource, the second geographic location) is (the first second PRS resource, the first second geographic location). The first second geographic location here is, for example, the geographic location of the first antenna panel (or the first group of antenna panels) of the target terminal.

The anchor UE sends the PRS through the PRS resource at time t ₁ , t ₂ , ..., t _M respectively.

The anchor UE notifies multiple first geographic locations, such as the geographic locations of multiple antenna panels (or antenna panel groups), through one transmission, and the notification method is as follows: the first first geographic location, the second first geographic location, . .., the Mth first geolocation

The mapping relationship between the first geographic location and the PRS resource is defined as: in ascending order, the first geographic location in the geographic location list corresponds to the PRS resource at different times one by one. For example, the first first geographic location corresponds to the PRS resource at time _t1 /period, the second first geographic location corresponds to the PRS resource at time _t2 /period, ..., the Mth first geographic location corresponds to PRS resource correspondence at time t _M /period.

According to the mapping relationship between the first geographic location (corresponding to one or a group of antenna panels) and the second PRS resource, and multiple first geographic locations notified by the anchor node. The target node can know the geographic location corresponding to the jth second PRS

And the second terminal knows the geographic location of its i-th antenna panel. And, the target node knows the time difference Δτ _j,i corresponding to (j th second PRS resource, i th second geographic location) through measurement.

Assuming that the coordinates of the reference geographic location of the target node are (x, y, z), through the above information, the target node can obtain multiple equations containing variables (x, y, z). Therefore, the target node can obtain the location of the target node by solving the equation.

The target terminal is a target node, and the target terminal can calculate the positioning of the target node by the positioning server through feedback to the positioning server.

The target node feeds back multiple first geographic locations notified by the anchor node to the positioning server, and feeds back multiple (second PRS, second geographic location) corresponding time differences measured by the target node to the positioning server, where (the jth The time difference corresponding to the second PRS, the i-th second geographic location) is Δτ _j,i .

In addition, the target terminal assumes a local coordinate system, called the first local coordinate system. The coordinate origin of the first local coordinate system assumed by the target terminal is the reference geographic location. The target node notifies the multiple second geographic locations, the distances relative to the reference position of the target node. And, the target node notifies the angle information of the plurality of second geographic locations in the first local coordinate system, such as azimuth and elevation. Here, the angle between the first local coordinate system and the global coordinate system is an unknown quantity. Based on these information, the location server calculates the location of the target node.

Embodiment 7: Multi-time antenna panel positioning (anchor point UE, multiple antenna panels)

For a moment, M (or groups) of antenna panels of the anchor node have M different geographical locations.

The anchor node is moving, and for any one (or a group) of antenna panels of the anchor node, the geographic locations of t ₁ , t ₂ , ..., t _Q are different at different times/periods. For t _i moment/period, antenna panel 1, antenna panel 2, antenna panel 3, ..., antenna panel M (or antenna panel group 1, antenna panel 2, antenna panel 3, .. ..., antenna panel group M) the geographic location is

That is, at time t _i /period, the geographic location of the antenna panel m of the anchor node is

For the moment/period of t _i , M (M groups) antenna panels of the anchor node are respectively mapped to M second PRS resources, marked as the first second PRS resource and the second second PRS resource, . . . , the Mth second PRS resource. At time t _i /period, the anchor node sends PRS through these second PRS resources.

Assuming that the target node is stationary, and the target node passes through N (or N groups) of antenna panels, at each moment/period of time t ₁ , t ₂ ,...,t _Q time/segment, the target node responds to M second PRS The PRS signal on the resource is measured. The measured quantity may be AOA, relative delay difference, and the like. The relative time delay difference is taken as an example for description.

On the target node side, N (or N groups) of antenna panels for measurement have different geographic locations. The antenna panel (or antenna panel group) corresponding to the nth geographic location is marked as antenna panel n (or antenna panel group n). For the antenna panel n (or antenna panel group n) at the i moment/period, the relative time delay of the measurement of the m th second PRS resource is Δτ _m,n,i . The relative time delay Δτ _m,n,i is the time delay difference, and the reference time delay in time delay calculation is: at one moment/period, antenna panel 1 (or antenna panel group 1) corresponds to the first second PRS resource delay.

The anchor UE sends the PRS through the second PRS resource at time t ₁ , t ₂ , ..., _tQ time/period respectively; for any time/period ti, sends the PRS through M second PRS resources.

The anchor UE notifies multiple first geographic locations by sending once, and the notification method is as follows:

1st location, 2nd location, ..., Mth location

The M+1th location, the M+2th location, ..., the 2Mth location

…

The (Q-1)*M+1th geographic location, the (Q-1)*M+2th geographic location, ..., the Q*Mth geographic location.

The above mapping relationship between the first geographic location and the second PRS resource is described as follows.

For the 1st second PRS resource, the 2nd second PRS, ..., the Mth second PRS corresponding to any ith time/period t _i , they are respectively in the (i-1 )*M+1 geographic location, (i-1)*M+2 geographic location, ..., i*M geographic location corresponds. Wherein, i is a positive integer less than or equal to Q.

According to the mapping relationship between the geographic location (corresponding to one antenna panel) and the second PRS resource, and multiple geographic locations notified by the anchor node. The target node can know the (i-1)*M+1 first geographic location, the (i-1)*M+2 first geographic location, ..., the i*M first geographic location, Corresponding to the 1st second PRS resource, the 2nd second PRS, ..., the Mth second PRS at the i-th moment/period. Therefore, the target terminal knows the geographic location corresponding to the mth second PRS at the ith moment/period

The relationship between the time/period i corresponding to the above M*Q first geographic locations and the corresponding PRS resource m is expressed as follows:

The pth (p is an integer belonging to [1, M*Q]) first geographic location, corresponding to the i=ceil(p/M) time/period; the pth (p is an integer belonging to [1, M*Q] integer) first geographic location, corresponding to the mth=mod(p-1/M)+1 PRS resource corresponding to the i-th time/period (t _i ); or, the time/time corresponding to the above-mentioned first geographic location The time period, and the corresponding antenna panel (or antenna panel group), are expressed as follows:

The pth first geographic location corresponds to the i=ceil(p/M) moment/period; the pth first geographic location corresponds to the m=mod(p-1/M)+1 antenna panel (or antenna panel group); the target node is the target terminal, and the target terminal has obtained (the mth second PRS resource, the nth second geographic location, the ith moment/period) the corresponding time difference through measurement, marked as Δτ _m,n,i .

The target node feeds back multiple first geographic locations notified by the anchor node to the positioning server, and feeds back multiple (second PRS, second geographic location) corresponding time differences corresponding to Q times/periods measured by the target node to the positioning server , where the time difference corresponding to (the m second PRS, the n second geographic location, the i time/period) is Δτ _m,n,i .

In addition, the target terminal assumes a local coordinate system, which is referred to as the first local coordinate system herein. The coordinate origin of the first local coordinate system assumed by the target terminal is the reference geographic location. The target node notifies the distances of the plurality of second geographic locations relative to the reference position of the target node. And, the target node notifies the angle information of the plurality of second geographic locations in the first local coordinate system, such as azimuth and elevation. Here, the angle between the first local coordinate system and the global coordinate system is an unknown quantity. Based on these information, the location server calculates the location of the target node.

The above-mentioned embodiment is described in summary below:

Example 1. The first terminal, that is, the first communication node, performs measurements on one or more first PRS resources; the first terminal sends feedback information, and the feedback information includes one or more first feedback information, that is, information to be fed back , the first feedback information corresponds to a pair (the first PRS resource, the first target object); the first terminal sends one or more pieces of first geographic location information.

Example 2 is based on Example 1, and includes at least one of the following: the first target object is a first geographic location; the first target object is an antenna panel, that is, the first antenna panel; the first target object is a second PRS resource;

Example 3 is based on Example 1, and includes at least one of the following: for different first PRS resources, different PRS ports; for different first PRS resources, PRS resources at different times.

Example 4 is based on Example 2, and includes at least one of the following: for different second PRS resources, different PRS ports; for different second PRS resources, PRS resources at different times.

Example 5 Based on Example 1, the first terminal sends one or more first geographic location information, and each first geographic location information includes at least one of the following: the first geographic location information is bound to a pannel; The first geographic location information is bound to a group of pannels, and the group of pannels includes multiple pannels with the same or similar geographic location; the first geographic location information is bound to a time of a pannel ; The first geographic location information is bound to a time when a group of pannels is bound, and the group of pannels includes multiple pannels with the same or similar geographic locations.

Example 6 Based on Example 1, the first terminal sends the first feedback information, and the way of sending the first feedback information includes at least one of the following: a pair of (first PRS resource, antenna panel) corresponding time delay, time delay relative to the reference time delay Delay. The reference time delay is the time delay corresponding to the reference (the first PRS resource, the antenna panel); the time delay corresponding to a pair of (the first PRS resource, the first geographic location), and the time delay difference relative to the reference time delay. The reference delay is a delay corresponding to a reference (first PRS resource, first geographic location); a time difference between two first PRS resources corresponding to the same first geographic location.

Time difference between two first geographic locations corresponding to the same first PRS resource

Example 7 is based on Example 6, including at least one of the following: the PRS resource corresponding to the reference (first PRS resource, antenna panel) is the first PRS resource (marked as number 0), and the corresponding first antenna panel (marked as number 0 ); reference (first PRS resource, first geographic location) corresponds to the first PRS resource (recorded as number 0), and corresponds to the first geographic location (recorded as number 0).

Example 8 is based on Example 1, and the first feedback information is at least one of the following: a pair (first PRS resource, second PRS resource) corresponding to the receiving-transmitting time difference; a pair (first PRS resource, second PRS resource) The relative value between the receive-transmit time difference and the reference (first PRS resource, second PRS resource) receive-transmit time difference.

Example 9 is based on Example 8. For a pair (first PRS resource, second PRS resource), it includes: the first terminal receives one or more PRS signals on one or more first PRS resources, and the one or more PRS Signal The first PRS signal comes from the second terminal.

The first terminal sends one or more PRS signals on one or more second PRS resources.

Example 10 is based on Example 1, the first feedback information is at least one of the following:

The horizontal angle of arrival corresponding to a pair (the first PRS resource, the first geographic location); the vertical angle of arrival corresponding to a pair (the first PRS resource, the first geographic location); Example 11 is based on Example 1, and the first terminal indicates The information sent by the first terminal is at least one of the following: time difference between receiving and sending; angle of arrival; relative time delay.

Example 12 is based on Example 1. The first terminal indicates the feedback capability of the first terminal, and the feedback capability includes at least one of the following capabilities:

Feedback capability of receiving-sending time difference; feedback capability of angle of arrival; feedback capability of relative delay; does not support any of the above capabilities

Example 13 Based on Example 1, the first terminal feeds back one or more first feedback information corresponding to one or more (first PRS resource, first geographic location), and the feedback method is:

The information fed back by the first terminal includes a geographic location information list; the geographic location information list includes N first geographic location information (N is an integer greater than 0), recorded as geographic location 1, geographic location 2, ..., Geographic location N; each geographic location in the N pieces of first geographic location information corresponds to a first feedback information list; the first feedback information list includes M pieces of first feedback information, and M is an integer greater than 0.

like:

Geographical location 1: (1st first feedback information, 2nd first feedback information); geographic location 2: (1st first feedback information, 2nd first feedback information); geographic location j: (first 1 first feedback message, 2nd first feedback message).

The i-th first feedback information corresponds to the i-th resource and the j-th geographic location.

Geographical location N: (first feedback information 1, first feedback information 2) i-th time delay, corresponding to i-th resource, j-th geographic location.

Example 14 is based on Example 13, the first feedback information corresponding to (i-th first PRS resource, j-th first geographic location), corresponding to: the first feedback information corresponding to the i-th first geographic location in the geographic location list The jth feedback information in .

Example 15 is based on Example 13, and the first feedback information is one of the following:

A pair of (the first PRS resource, the first geographic location) corresponding to the measurement moment, relative to the time difference of the reference (the first PRS resource, the first geographic location) measurement moment; a pair of (the first PRS resource, the first geographic location) Corresponding angle of arrival; time difference between sending and receiving positioning reference signals corresponding to a pair (first PRS resource, first geographic location).

Example 16 Based on Example 1, the first terminal feeds back one or more first feedback information corresponding to one or more pairs (the first PRS resource, the first geographic location), and the feedback method is:

The information fed back by the first terminal includes a geographic location information list; the geographic location information list includes N pieces of first geographic location information (N is an integer greater than 0), recorded as geographic location 1, geographic location 2, ..., geographic location Position N: For each geographic location information in the above N first geographic locations, it corresponds to a list composed of M elements, where M is an integer greater than 0; for each of the M elements: contains a first The PRS resource number, and includes a first feedback information.

Instruction examples are as follows:

Geographic location 1:

(the first PRS resource ID=1, the first first feedback information)

(PRS resource ID=2, the second first feedback information)

Geographical location 2:

(PRS resource ID=1, the 1st first feedback information)

(PRS resource ID=2, the second first feedback information)

.....

Geographic location j:

(PRS resource ID=1, the 1st first feedback information)

(PRS resource ID=2, the second first feedback information) The PRS resource ID=i indicated in this row corresponds to the i-th resource and the j-th geographic location

.....

Geographic location N:

(PRS resource ID=1, the 1st first feedback information)

(PRS resource ID=2, the second first feedback information)

Example 17 is based on Example 16, the first feedback information corresponding to (i-th first PRS resource, j-th first geographic location), corresponding to: the PRS resource number corresponding to the j-th first geographic location in the geographic location list is The first feedback information contained in the element of i. Wherein, the PRS resource identifier may be a PRS resource number.

Example 18 is based on Example 16, and the first feedback information is one of the following:

A pair of (first PRS resource, first geographic location) relative delay difference, the relative delay difference is a pair of (first PRS resource, first geographic location), and reference (first PRS resource, first geographic location) The delay difference; a pair of (the first PRS resource, the first geographic location) corresponding to the angle of arrival; a pair of (the first PRS resource, the first geographic location) corresponding to the receiving and sending time difference of the positioning reference signal, or The absolute value of the receive-send time difference.

Based on the transmitting behavior of the first terminal in

Embodiments

1, 3, 4, 5, 6, and 7, the following solutions are provided:

plan 1:

A method of information transmission, comprising:

The first terminal sends PRS through one or more PRS resources; the first terminal sends one or more first geographic locations; there is a fixed mapping relationship between the first geographic locations and the PRS resources.

Scenario 2:

Based on solution 1, the first terminal sends one or more geographic location information, and each geographic location information includes at least one of the following:

The geographic location information is bound to a pannel.

The one geographic location information is bound to a set of pannels, and the set of pannels includes multiple pannels with the same or similar geographic locations.

The geographic location information is bound to a moment of a pannel.

The geographic location information is bound to a moment bound to a set of pannels, and the set of pannels includes multiple pannels with the same or similar geographic locations.

Option 3:

The way for the first terminal to send one or more geographic locations is:

The information notified by the first terminal includes a geographic location list; the geographic location list includes N geographic location information (N is an integer greater than 0), recorded as geographic location 1, geographic location 2, ..., geographic location N.

Instruction examples are as follows:

1st location, 2nd location.

Scheme 4: Based on Scheme 1 and Scheme 3, the mapping relationship between the geographic location and the PRS resource is: the i-th geographic location in the geographic location list corresponds to the i-th PRS resource of the first terminal.

Instruction examples are as follows:

1st location, 2nd location.

Option 5:

The mapping relationship between geographic location and PRS resource is:

The first terminal indicates multiple geographic locations; for each geographic location, the first terminal indicates the PRS resource number mapped to the geographic location; the indication example is as follows:

The geographic location 1 of the Pannel: PRS resource ID1; the geographic location 1 of the Pannel: PRS resource ID2.

Option 6:

The first terminal indicates a coordinate type through the SCI, and the indicated coordinate system type is one of the following: a local coordinate system; a global coordinate system.

Scheme 7: Based on Scheme 6, the coordinate origin of the local coordinate system is the reference geographic location, and the reference geographic location is one of the following: the geometric center of the terminal; the geographic location corresponding to a pannel of the terminal.

Option 8:

Based on scheme 6, at least one of the following is included: the x-axis of the global coordinate system points to the true north direction; the x-axis of the global coordinate system points to the true north direction, and the z-axis of the global coordinate system is perpendicular to the ground or sea level.

Option 9: Based on Option 1, including at least one of the following:

The first terminal notifies one or more first geographic locations, the coordinates in the local coordinate system; the first terminal notifies the angle of one or more first geographic locations in the local coordinate system; and/or the first terminal notifies one or more Distances between the multiple first geographic locations and the reference geographic location.

Scheme 10 (embodiment 7):

The first terminal notifies Q=M*N first geographic locations, where N represents N time/periods, and the pth geographic location corresponds to a time/period whose number is i=ceil(p/M).

Scheme 11 (embodiment 7):

The first terminal notifies Q=M*N first geographic locations, where N represents N time periods/periods, and for the pth geographic location, it includes at least one of the following:

Corresponding to the mth=mod(p-1/M)+1 PRS resource corresponding to a moment or time period; corresponding to the mth=mod(p-1/M)+1 antenna panel, or corresponding to the mth=mod(p- 1/M)+1 antenna panel group.

Based on the transmitting behavior of the second terminal, the following implementation methods are provided:

Second terminal (target terminal)

Method 1:

The second terminal sends one or more pieces of second geographic location information, where the second geographic location information is a location in a local coordinate system.

Method 2:

The second geographic location is a coordinate in the local coordinate system.

Method 3:

The second geographic location information includes at least one of the following: the distance between the second geographic location and the reference geographic location; the angle of the second geographic location in the local coordinate system;

Method 4:

The PRS sent by the second terminal is mapped to one or more first PRS resources; the first terminal sends one or more second geographic locations; there is a fixed mapping relationship between the second geographic locations and the first PRS resources.

Method 5: Based on method 1, the coordinate origin of the local coordinate system is the reference geographic location, and the reference geographic location is one of the following: the geometric center of the terminal; the geographic location corresponding to a pannel of the terminal.

Method 6:

The second terminal indicates an information feedback type through the SCI, and the information feedback type includes at least one of the following: time difference between receiving and sending; angle of arrival; relative time delay.

Way 7:

The second terminal triggers the first node to feed back the "feedback type capability" through the SCI, and the "feedback type capability" includes at least one of the following capabilities: feedback capability of receiving-transmitting time difference; feedback capability of angle of arrival; feedback of relative delay ability.

The feedback of the "feedback type capability" comes from the first node.

In an exemplary embodiment, an embodiment of the present application provides an information transmission device. FIG. 5 is a schematic structural diagram of an information transmission device provided in an embodiment of the present application. The device can be integrated in the first communication node, as shown in FIG. 5, the device includes:

The measurement module 51 is configured to measure the first positioning reference signal PRS resource; the sending module 52 is configured to send feedback information and first geographic location information; wherein, the first PRS resource is used by the second communication node to send the first A PRS resource of a PRS, the feedback information includes information to be fed back, each piece of information to be fed back corresponds to a target object and a first PRS resource among the measured first PRS resources, and the target object represents the first communication The geographic location of the node or the location of the time-frequency resource used by the first communication node is an object, and the feedback information is obtained based on measurement.

The information transmission device provided in this embodiment is used to implement the information transmission method of the embodiment shown in Figure 1. The implementation principle and technical effect of the information transmission device provided in this embodiment are similar to the information transmission method of the embodiment shown in Figure 1. Here, I won't repeat them here.

In one embodiment, the target objects include one or more of the following:

First geographic location information; a first antenna panel of the first communication node; and a second PRS resource, where the second PRS resource is a PRS resource for the first communication node to send a second PRS.

Different PRS ports; PRS resources at different times.

A first antenna panel of the first communication node; a group of first antenna panels of the first communication node; a moment of a first antenna panel of the first communication node; A moment of a set of first antenna panels.

The time difference between a first PRS resource and a second PRS resource; the time difference between a first PRS resource and a second PRS resource, and the difference between the first PRS resource and the second PRS resource among the measured first PRS resources The relative value of the time difference between sending and receiving of the first PRS resource.

In one embodiment, the device further includes an indication module configured to: indicate that the content included in the feedback information is one or more of the following:

In one embodiment, it also includes indicating one or more of the following capabilities:

In one embodiment, the feedback information and the first geographic location information are included in a first geographic location information list, and the first geographic location information list includes N pieces of first geographic location information, where N is a positive integer, and the Each piece of first geographic location information in the N pieces of first geographic location information corresponds to a feedback information list, and a feedback information list includes M pieces of feedback information, where M is a positive integer.

In one embodiment, the feedback information corresponding to the i-th first PRS resource and the j-th first geographic location information is in the feedback information list corresponding to the j-th first geographic location information in the first geographic location information list The jth feedback information of .

A measurement moment corresponding to a first PRS resource and a first geographic location information, relative to a measurement moment of the first PRS resource in the measured first PRS resource and the first geographic location information in the first geographic location information A time difference; a first PRS resource and an angle of arrival corresponding to a first geographic location information; a time difference between sending and receiving a positioning reference signal corresponding to a first PRS resource and a first geographic location information.

In one embodiment, the feedback information and the first geographic location information are included in a second geographic location list, and the second geographic location list includes S pieces of first geographic location information, S is a positive integer, and the S pieces of Each geographic location in the first geographic location information corresponds to a list composed of Z elements, where Z is a positive integer, and each element includes a first PRS resource identifier and a piece of feedback information.

In one embodiment, the feedback information corresponding to the i-th first PRS resource and the j-th first geographic location information is that the PRS resource identifier corresponding to the j-th first geographic location information in the second geographic location list is The feedback information corresponding to the element of i.

In one embodiment, the feedback information includes:

In an exemplary embodiment, an embodiment of the present application provides an information transmission device. FIG. 6 is a schematic structural diagram of an information transmission device provided in an embodiment of the present application. The device is configured in a first communication node, and the device includes:

The first sending module 61 is configured to send the second PRS through the second PRS resource; the second sending module 62 is configured to send the first geographic location information, and there is a mapping relationship between the first geographic location information and the PRS resource.

The information transmission device provided in this embodiment is used to implement the information transmission method in the embodiment shown in Figure 2. The implementation principle and technical effect of the information transmission device provided in this embodiment are similar to the information transmission method in the embodiment shown in Figure 2. Here, I won't repeat them here.

An antenna panel of the first communication node; a group of antenna panels of the first communication node; a moment of an antenna panel of the first communication node; one of a group of antenna panels of the first communication node time.

In an embodiment, the number of first geographic location information is one or more, and the first communication node indicates the second PRS resource identifier mapped to the first geographic location information for each first geographic location information.

In one embodiment, the device also includes an indication module, configured to:

Indicates one of the following coordinate types:

local coordinate system and global coordinate system.

In one embodiment, one of the following is included:

In one embodiment, the device further includes a notification module configured to notify one or more of the following:

In one embodiment, the device includes one or more of the following:

In an exemplary embodiment, an embodiment of the present application provides an information transmission device configured at a second communication node. FIG. 7 is a schematic structural diagram of an information transmission device provided in an embodiment of the present application. The device includes:

The sending module 71 is configured to send second geographic location information, where the second geographic location information is the location of the second antenna panel of the second communication node in the local coordinate system.

The information transmission device provided in this embodiment is used to implement the information transmission method of the embodiment shown in Figure 3a. The implementation principle and technical effect of the information transmission device provided in this embodiment are similar to the information transmission method of the embodiment shown in Figure 3a. I won't repeat them here.

On the basis of the above-mentioned embodiments, modified embodiments of the above-mentioned embodiments are proposed. In order to simplify the description, only differences from the above-mentioned embodiments will be described in the modified embodiments.

In an embodiment, the device further includes a first PRS sending module, configured to: send a first PRS, the first PRS is mapped to one or more first PRS resources, and the second geographic location information The number is one or more, and there is a mapping relationship between each second geographic location information and one of the first PRS resources.

In one embodiment, the device further includes a first indication module configured to indicate one or more of the following feedback types:

In one embodiment, the device further includes: a second indication module configured to instruct the first communication node to feed back supported capabilities, where the capabilities supported by the first communication node include one of the following capabilities:

In an example implementation, an embodiment of the present application provides an information transmission device. FIG. 8 is a schematic structural diagram of an information transmission device provided in an embodiment of the present application, and the device is integrated on a second communication node. As shown in Figure 8, the device includes:

The measurement module 110 is configured to measure the second positioning reference signal PRS resource; the reporting module 120 is configured to report the measurement result to the upper layer; the measurement result includes one or more measurement information, and each measurement information corresponds to a setting An object and a second PRS resource among the measured second PRS resources, the set object is an object representing the geographic location of the second communication node or the location of the time-frequency resource used by the second communication node.

The information transmission device provided in this embodiment is used to implement the information transmission method in the embodiment shown in Figure 3b. The implementation principle and technical effect of the information transmission device provided in this embodiment are similar to the information transmission method in the embodiment shown in Figure 3b. I won't repeat them here.

In one embodiment, the set object includes one or more of the following:

Different PRS ports; PRS resources at different times.

In an exemplary embodiment, the embodiment of the present application provides a communication node, which may be the first communication node that executes the information transmission method described in FIG. 1 or FIG. 2 , or may be the first communication node that executes the information transmission method shown in FIG. The second communication node of the information transmission method. Fig. 9 is a schematic structural diagram of a communication node provided by an embodiment of the present application. As shown in FIG. 9, the communication node provided by the present application includes one or more processors 81 and storage devices 82; there may be one or more processors 81 in the communication node. In FIG. 9, one processor 81 is Example; the storage device 82 is used to store one or more programs; the one or more programs are executed by the one or more processors 81, so that the one or more processors 81 realize the The information transmission method described.

The communication node also includes: a communication device 83 , an input device 84 and an output device 85 .

The processor 81, the storage device 82, the communication device 83, the input device 84, and the output device 85 in the communication node may be connected through a bus or in other ways. In FIG. 9, connection through a bus is taken as an example.

The input device 84 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the communication node. The output device 85 may include a display device such as a display screen.

The communication device 83 may include a receiver and a transmitter. The communication device 83 is configured to perform information sending and receiving communication according to the control of the processor 81 . Information includes, but is not limited to Feedback Information.

The storage device 82, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs and modules, such as the program instructions/modules corresponding to the information transmission method described in the embodiment of the present application (for example, the information transmission device in the The measurement module 51 and the sending module 52; or the first sending module 61 and the second sending module 62 in the information transmission device; or the sending module 71 in the information transmission device; or the measurement module 110 and the reporting module 120 in the information transmission device) . The storage device 82 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the communication node, and the like. In addition, the storage device 82 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some examples, the storage device 82 may include memory located remotely from the processor 81, and these remote memories may be connected to the communication node through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The embodiment of the present application also provides a storage medium, the storage medium stores a computer program, and when the computer program is executed by a processor, any one of the information transmission methods described in the present application is implemented, and the storage medium stores the computer program, so When the above computer program is executed by a processor, the information transmission method described in any one of the embodiments of the present application is realized.

For example, the information transmission method applied to the first communication node:

Performing measurement on the first positioning reference signal PRS resource; sending feedback information and first geographic location information; wherein, the first PRS resource is the PRS resource used by the second communication node to send the first PRS, and the feedback information includes the PRS resource to be Feedback information, each piece of information to be fed back corresponds to a target object and the first PRS resource in the measured first PRS resource, where the target object represents the geographic location of the first communication node or the time-frequency used by the first communication node An object of a resource location, and the feedback information is obtained based on measurements.

Another example is the information transmission method applied to the first communication node:

For another example, the information transmission method applied to the second communication node:

Perform measurement on the second positioning reference signal PRS resource; report the measurement result to the upper layer; the measurement result includes at least one measurement information, each measurement information corresponds to a configuration object and a second PRS in the measured second PRS resource resource, the setting object is an object representing the geographic location of the second communication node or the location of the time-frequency resource used by the second communication node.

The computer storage medium in the embodiments of the present application may use any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. Examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more conductors, portable computer disks, hard disks, Random Access Memory (RAM), Read Only Memory (Read Only) Memory, ROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory, EPROM), flash memory, optical fiber, portable CD-ROM, optical storage device, magnetic storage device, or any suitable combination of the above. A computer readable storage medium may be any tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including but not limited to: electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wires, optical cables, radio frequency (Radio Frequency, RF), etc., or any suitable combination of the above.

Computer program codes for performing the operations of the present application may be written in one or more programming languages or combinations thereof, including object-oriented programming languages such as Java, Smalltalk, C++, and conventional A procedural programming language, such as the "C" language or similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or it may be connected to an external computer such as use an Internet service provider to connect via the Internet).

The above descriptions are merely exemplary embodiments of the present application.

Those skilled in the art will understand that the term terminal equipment covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle-mounted mobile station.

In general, the various embodiments of the present application can be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.

The embodiments of the present application may be implemented by a data processor of a mobile device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. Computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages source or object code.

Any logic flow block diagrams in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions. Computer programs can be stored on memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to Read-Only Memory (ROM), Random Access Memory (RAM), Optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc. Computer readable media may include non-transitory storage media. Data processors can be of any type suitable for the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC ), programmable logic devices (Field-Programmable Gate Array, FPGA), and processors based on multi-core processor architectures.

Claims

An information transmission method, applied to a first communication node, comprising:

performing measurement on a first positioning reference signal PRS resource;

Send feedback information and first geographic location information;

Wherein, the first PRS resource is a PRS resource used by the second communication node to send the first PRS, and the feedback information includes information to be fed back, and each piece of information to be fed back corresponds to a target object and the measured first PRS resource A first PRS resource, the target object is an object representing the geographic location of the first communication node or the location of the time-frequency resource used by the first communication node.
The method of claim 1, wherein the target object comprises at least one of the following:

first geographic location information;

a first antenna panel of the first communication node;

A second PRS resource, where the second PRS resource is a PRS resource for the first communication node to send a second PRS.
The method according to claim 2, wherein the different second PRS resources correspond to at least one of the following:

Different PRS ports; PRS resources at different times.
The method according to claim 1, wherein different first PRS resources correspond to at least one of the following:

Different PRS ports; PRS resources at different times.
The method according to claim 1, wherein a first geographic location information is associated with at least one of the following:

a first antenna panel of said first communications node;

a set of first antenna panels of said first communications node;

a moment of a first antenna panel of said first communications node;

A time instant of a group of first antenna panels of the first communication node.
The method according to claim 1, wherein the information to be fed back includes at least one of the following:

A time delay difference between a first PRS resource and a first antenna panel relative to a first reference time delay;

A delay difference between a first PRS resource and a first geographic location information relative to a second reference delay,

A time difference between two first PRS resources corresponding to the same first geographic location information;

A time difference between two pieces of first geographic location information corresponding to the same first PRS resource.
The method according to claim 6, wherein the first reference delay is the measured delay of the first PRS resource among the first PRS resources and the first antenna panel among the first antenna panels, and the first The second reference delay is the measured delay between the first PRS resource in the first PRS resource and the first geographic location in the first geographic location information.
The method according to claim 1, wherein the information to be fed back includes at least one of the following:

A time difference between sending and receiving a first PRS resource and a second PRS resource;

The relative value of the time difference between the sending and receiving time of a first PRS resource and a second PRS resource and the measured sending and receiving time difference between the first PRS resource among the first PRS resources and the first PRS resource among the second PRS resources.
The method according to claim 8, wherein the first communication node receives at least one PRS signal from the second communication node on at least one first PRS resource; At least one PRS signal is sent on the PRS resource.
The method according to claim 1, wherein the information to be fed back includes at least one of the following:

A horizontal angle of arrival corresponding to a first PRS resource and a first geographic location information;

A vertical angle of arrival corresponding to a first PRS resource and a first geographic location information.
The method according to claim 1, further comprising: indicating that the content included in the feedback information is at least one of the following:

Time difference between sending and receiving; angle of arrival; relative delay.
The method of claim 1, further comprising indicating at least one of the following capabilities:

Feedback capability of sending and receiving time difference; feedback capability of angle of arrival; feedback capability of time delay difference.
The method according to claim 1, wherein the information to be fed back and the first geographic location information are included in a first geographic location information list, and the first geographic location information list includes N pieces of first geographic location information, N is a positive integer, and each first geographic location information in the N pieces of first geographic location information corresponds to a list of information to be fed back, and a list of information to be fed back includes M pieces of information to be fed back, and M is a positive integer.
The method according to claim 13, wherein the information to be fed back corresponding to the i-th first PRS resource and the j-th first geographic location information is the j-th first geographic location information in the first geographic location information list The jth information to be fed back in the corresponding to-be-feedbacked information list.
The method according to claim 13, wherein the information to be fed back includes at least one of the following:

A measurement moment corresponding to a first PRS resource and a first geographic location information, relative to a measurement moment of the first PRS resource in the measured first PRS resource and the first geographic location information in the first geographic location information Time difference;

An angle of arrival corresponding to a first PRS resource and a first geographic location information;

A time difference between sending and receiving a positioning reference signal corresponding to a first PRS resource and a first geographic location information.
The method according to claim 1, wherein the information to be fed back and the first geographic location information are included in a second geographic location list, the second geographic location list includes S pieces of first geographic location information, and S is positive Integer, each geographic location in the S first geographic location information corresponds to a list composed of Z elements, Z is a positive integer, and each element includes a first PRS resource identifier and a piece of information to be fed back.
The method according to claim 16, wherein the information to be fed back corresponding to the i-th first PRS resource and the j-th first geographic location information is the j-th first geographic location information in the second geographic location list The corresponding PRS resource identifier is the information to be fed back corresponding to the element i.
The method according to claim 16, wherein the feedback information comprises:

A delay between a first PRS resource and a first geographic location information, and a time delay difference between the measured first PRS resource in the first PRS resources and the first geographic location in the first geographic location information value;

An angle of arrival corresponding to a first PRS resource and a first geographic location information;

The sending and receiving time difference or the absolute value of the sending and receiving time difference of a positioning reference signal corresponding to a first PRS resource and a first geographic location information.
An information transmission method, applied to a first communication node, comprising:

sending a second PRS through a second positioning reference signal PRS resource;

Sending first geographic location information, where there is a mapping relationship between the first geographic location information and the PRS resource.
The method according to claim 19, wherein the first geographic location information is associated with at least one of the following:

an antenna panel of said first communication node;

a set of antenna panels of said first communication node;

a moment of an antenna panel of said first communication node;

A time instant of a set of antenna panels of the first communication node.
The method according to claim 19, wherein the first geographic location information is included in a geographic location list, and the geographic location list includes W first geographic location information, where W is a positive integer.
The method according to claim 21, wherein the jth first geographic location information in the geographic location list corresponds to the jth second PRS resource, and j is a positive integer not greater than W.
The method according to claim 19, wherein the number of first geographic location information is at least one, and the first communication node indicates the first geographic location information mapped to each first geographic location information for each first geographic location information 2. PRS resource identifier.
The method of claim 19, further comprising:

Indicates one of the following coordinate types:

local coordinate system and global coordinate system.
The method according to claim 24, wherein the coordinate origin of the local coordinate system is a reference geographic location of the first communication node, and the reference geographic location is one of the following:

The geometric center position of the first communication node; the geographical position corresponding to one panel of the first communication node.
The method according to claim 24, wherein the global coordinate system satisfies one of the following:

The x-axis of the global coordinate system points to the true north direction;

The x-axis of the global coordinate system points to the true north, and the z-axis is perpendicular to the ground or sea level.
The method of claim 19, further comprising notifying at least one of:

coordinates of the first geographic location information in the local coordinate system;

an angle of the first geographic location information in the local coordinate system;

The distance between the first geographic location information and a reference geographic location.
The method according to claim 19, wherein the number of the first geographic location information is Q*M, Q is the number of times or periods, and M is the number of second PRS resources.
The method according to claim 28, wherein at least one of the following is satisfied:

The p-th first geographic location information corresponds to the moment or time period of the i-th=ceil(p/M);

The pth geographic location corresponds to the mth=mod(p-1, M)+1 second PRS resource at a moment or time period;

The pth geographic location corresponds to the m=mod(p-1, M)+1 antenna panel, or corresponds to the m=mod(p-1, M)+1 antenna panel group.
An information transmission method, applied to a second communication node, comprising:

Sending second geographic location information, where the second geographic location information is the location of the second antenna panel of the second communication node in the local coordinate system.
The method of claim 30, wherein the second geographic location information is coordinates in a local coordinate system.
The method according to claim 30, wherein the second geographic location information includes at least one of the following:

The distance between the second geographic location information and a reference geographic location; the angle of the second geographic location information in a local coordinate system.
The method according to claim 30, further comprising: sending a first positioning reference signal PRS, the first PRS is mapped to at least one first PRS resource, and the number of the second geographic location information is at least one, each There is a mapping relationship between the second geographic location information and one of the at least one first PRS resource.
The method according to claim 30, wherein the coordinate origin of the local coordinate system is a reference geographic location of the second communication node, and the reference geographic location is one of the following:

The geometric center position of the second communication node; the geographical location corresponding to a second antenna panel of the second communication node.
The method of claim 30, further comprising indicating at least one of the following feedback types:

Time difference between sending and receiving; angle of arrival; relative delay difference.
The method according to claim 30, further comprising: instructing the first communication node to feed back supported capabilities, where the supported capabilities of the first communication node include one of the following capabilities:

Feedback capability of sending and receiving time difference; feedback capability of angle of arrival; feedback capability of relative delay difference.
An information transmission method, applied to a second communication node, comprising:

performing measurement on the second positioning reference signal PRS resource;

Report the measurement results to the upper management;

The measurement result includes at least one measurement information, and each measurement information corresponds to a configuration object and a second PRS resource among the measured second PRS resources, and the configuration object is to characterize the geographic location of the second communication node Or an object of the time-frequency resource location used by the second communication node.
The method according to claim 37, wherein said set object comprises at least one of the following:

second geographic location information;

a second antenna panel of said second communication node;

A first PRS resource, where the first PRS resource is a PRS resource for sending a first PRS by the second communication node.
The method according to claim 38, wherein the different first PRS resources correspond to at least one of the following:

Different PRS ports; PRS resources at different times.
The method according to claim 37, wherein the different second PRS resources correspond to at least one of the following:

Different PRS ports; PRS resources at different times.
The method according to claim 37, wherein said piece of measurement information includes at least one of the following:

The time delay of a second PRS resource and a second antenna panel, relative to the time delay difference of the third reference time delay;

A delay difference between a second PRS resource and a second geographic location information relative to a fourth reference delay,

The time difference between two second PRS resources corresponding to the same second geographic location information;

A time difference between two pieces of second geographic location information corresponding to the same second PRS resource.
The method according to claim 41, wherein the third reference delay is the measured delay of the first PRS resource among the second PRS resources and the first antenna panel among the second antenna panels, and the first The four reference delays are the measured delays of the first PRS resource in the second PRS resources and the first geographic location in the second geographic location information.
The method according to claim 37, wherein said piece of measurement information includes at least one of the following:

A time difference between sending and receiving of a second PRS resource and a first PRS resource;

The relative value of the time difference between the sending and receiving time of the second PRS resource and the first PRS resource and the measured sending and receiving time difference between the first PRS resource among the second PRS resources and the first PRS resource among the first PRS resources.
The method according to claim 43, wherein the second communication node receives one or more PRS signals from the first communication node on one or more second PRS resources; One or more PRS signals are sent on multiple first PRS resources.
The method of claim 37, wherein the one measurement information includes at least one of the following:

A horizontal angle of arrival corresponding to a second PRS resource and a second geographic location information;

A vertical angle of arrival corresponding to a second PRS resource and a second geographic location information.
The method according to claim 37, wherein the measured second PRS resource is a resource indicated by physical layer signaling or high layer signaling.
A storage medium storing a computer program, the computer program implements the information transmission method according to any one of claims 1-46 when executed by a processor.
A communication node comprising:

at least one processor;

a storage device configured to store at least one program;

When the at least one program is executed by the at least one processor, the at least one processor implements the information transmission method according to any one of claims 1-46.